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-rw-r--r--drivers/scsi/hisi_sas/Kconfig20
-rw-r--r--drivers/scsi/hisi_sas/Makefile4
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas.h679
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_main.c4102
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_v1_hw.c1839
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_v2_hw.c3645
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_v3_hw.c3621
7 files changed, 13910 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/Kconfig b/drivers/scsi/hisi_sas/Kconfig
new file mode 100644
index 000000000..b8148b173
--- /dev/null
+++ b/drivers/scsi/hisi_sas/Kconfig
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config SCSI_HISI_SAS
+ tristate "HiSilicon SAS"
+ depends on HAS_IOMEM
+ depends on ARM64 || COMPILE_TEST
+ select SCSI_SAS_LIBSAS
+ select BLK_DEV_INTEGRITY
+ depends on ATA
+ select SATA_HOST
+ help
+ This driver supports HiSilicon's SAS HBA, including support based
+ on platform device
+
+config SCSI_HISI_SAS_PCI
+ tristate "HiSilicon SAS on PCI bus"
+ depends on SCSI_HISI_SAS
+ depends on PCI
+ depends on ACPI
+ help
+ This driver supports HiSilicon's SAS HBA based on PCI device
diff --git a/drivers/scsi/hisi_sas/Makefile b/drivers/scsi/hisi_sas/Makefile
new file mode 100644
index 000000000..742e732cd
--- /dev/null
+++ b/drivers/scsi/hisi_sas/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_SCSI_HISI_SAS) += hisi_sas_main.o
+obj-$(CONFIG_SCSI_HISI_SAS) += hisi_sas_v1_hw.o hisi_sas_v2_hw.o
+obj-$(CONFIG_SCSI_HISI_SAS_PCI) += hisi_sas_v3_hw.o
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
new file mode 100644
index 000000000..a25cfc11c
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -0,0 +1,679 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2015 Linaro Ltd.
+ * Copyright (c) 2015 Hisilicon Limited.
+ */
+
+#ifndef _HISI_SAS_H_
+#define _HISI_SAS_H_
+
+#include <linux/acpi.h>
+#include <linux/blk-mq.h>
+#include <linux/blk-mq-pci.h>
+#include <linux/clk.h>
+#include <linux/debugfs.h>
+#include <linux/dmapool.h>
+#include <linux/iopoll.h>
+#include <linux/lcm.h>
+#include <linux/libata.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+#include <linux/timer.h>
+#include <scsi/sas_ata.h>
+#include <scsi/libsas.h>
+
+#define HISI_SAS_MAX_PHYS 9
+#define HISI_SAS_MAX_QUEUES 32
+#define HISI_SAS_QUEUE_SLOTS 4096
+#define HISI_SAS_MAX_ITCT_ENTRIES 1024
+#define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES
+#define HISI_SAS_RESET_BIT 0
+#define HISI_SAS_REJECT_CMD_BIT 1
+#define HISI_SAS_PM_BIT 2
+#define HISI_SAS_MAX_COMMANDS (HISI_SAS_QUEUE_SLOTS)
+#define HISI_SAS_RESERVED_IPTT 96
+#define HISI_SAS_UNRESERVED_IPTT \
+ (HISI_SAS_MAX_COMMANDS - HISI_SAS_RESERVED_IPTT)
+
+#define HISI_SAS_IOST_ITCT_CACHE_NUM 64
+#define HISI_SAS_IOST_ITCT_CACHE_DW_SZ 10
+
+#define HISI_SAS_STATUS_BUF_SZ (sizeof(struct hisi_sas_status_buffer))
+#define HISI_SAS_COMMAND_TABLE_SZ (sizeof(union hisi_sas_command_table))
+
+#define hisi_sas_status_buf_addr(buf) \
+ ((buf) + offsetof(struct hisi_sas_slot_buf_table, status_buffer))
+#define hisi_sas_status_buf_addr_mem(slot) hisi_sas_status_buf_addr((slot)->buf)
+#define hisi_sas_status_buf_addr_dma(slot) \
+ hisi_sas_status_buf_addr((slot)->buf_dma)
+
+#define hisi_sas_cmd_hdr_addr(buf) \
+ ((buf) + offsetof(struct hisi_sas_slot_buf_table, command_header))
+#define hisi_sas_cmd_hdr_addr_mem(slot) hisi_sas_cmd_hdr_addr((slot)->buf)
+#define hisi_sas_cmd_hdr_addr_dma(slot) hisi_sas_cmd_hdr_addr((slot)->buf_dma)
+
+#define hisi_sas_sge_addr(buf) \
+ ((buf) + offsetof(struct hisi_sas_slot_buf_table, sge_page))
+#define hisi_sas_sge_addr_mem(slot) hisi_sas_sge_addr((slot)->buf)
+#define hisi_sas_sge_addr_dma(slot) hisi_sas_sge_addr((slot)->buf_dma)
+
+#define hisi_sas_sge_dif_addr(buf) \
+ ((buf) + offsetof(struct hisi_sas_slot_dif_buf_table, sge_dif_page))
+#define hisi_sas_sge_dif_addr_mem(slot) hisi_sas_sge_dif_addr((slot)->buf)
+#define hisi_sas_sge_dif_addr_dma(slot) hisi_sas_sge_dif_addr((slot)->buf_dma)
+
+#define HISI_SAS_MAX_SSP_RESP_SZ (sizeof(struct ssp_frame_hdr) + 1024)
+#define HISI_SAS_MAX_SMP_RESP_SZ 1028
+#define HISI_SAS_MAX_STP_RESP_SZ 28
+
+#define HISI_SAS_SATA_PROTOCOL_NONDATA 0x1
+#define HISI_SAS_SATA_PROTOCOL_PIO 0x2
+#define HISI_SAS_SATA_PROTOCOL_DMA 0x4
+#define HISI_SAS_SATA_PROTOCOL_FPDMA 0x8
+#define HISI_SAS_SATA_PROTOCOL_ATAPI 0x10
+
+#define HISI_SAS_DIF_PROT_MASK (SHOST_DIF_TYPE1_PROTECTION | \
+ SHOST_DIF_TYPE2_PROTECTION | \
+ SHOST_DIF_TYPE3_PROTECTION)
+
+#define HISI_SAS_DIX_PROT_MASK (SHOST_DIX_TYPE1_PROTECTION | \
+ SHOST_DIX_TYPE2_PROTECTION | \
+ SHOST_DIX_TYPE3_PROTECTION)
+
+#define HISI_SAS_PROT_MASK (HISI_SAS_DIF_PROT_MASK | HISI_SAS_DIX_PROT_MASK)
+
+#define HISI_SAS_WAIT_PHYUP_TIMEOUT 20
+#define CLEAR_ITCT_TIMEOUT 20
+
+struct hisi_hba;
+
+enum {
+ PORT_TYPE_SAS = (1U << 1),
+ PORT_TYPE_SATA = (1U << 0),
+};
+
+enum dev_status {
+ HISI_SAS_DEV_INIT,
+ HISI_SAS_DEV_NORMAL,
+};
+
+enum {
+ HISI_SAS_INT_ABT_CMD = 0,
+ HISI_SAS_INT_ABT_DEV = 1,
+};
+
+enum hisi_sas_dev_type {
+ HISI_SAS_DEV_TYPE_STP = 0,
+ HISI_SAS_DEV_TYPE_SSP,
+ HISI_SAS_DEV_TYPE_SATA,
+};
+
+struct hisi_sas_hw_error {
+ u32 irq_msk;
+ u32 msk;
+ int shift;
+ const char *msg;
+ int reg;
+ const struct hisi_sas_hw_error *sub;
+};
+
+struct hisi_sas_rst {
+ struct hisi_hba *hisi_hba;
+ struct completion *completion;
+ struct work_struct work;
+ bool done;
+};
+
+#define HISI_SAS_RST_WORK_INIT(r, c) \
+ { .hisi_hba = hisi_hba, \
+ .completion = &c, \
+ .work = __WORK_INITIALIZER(r.work, \
+ hisi_sas_sync_rst_work_handler), \
+ .done = false, \
+ }
+
+#define HISI_SAS_DECLARE_RST_WORK_ON_STACK(r) \
+ DECLARE_COMPLETION_ONSTACK(c); \
+ struct hisi_sas_rst r = HISI_SAS_RST_WORK_INIT(r, c)
+
+enum hisi_sas_bit_err_type {
+ HISI_SAS_ERR_SINGLE_BIT_ECC = 0x0,
+ HISI_SAS_ERR_MULTI_BIT_ECC = 0x1,
+};
+
+enum hisi_sas_phy_event {
+ HISI_PHYE_PHY_UP = 0U,
+ HISI_PHYE_LINK_RESET,
+ HISI_PHYES_NUM,
+};
+
+struct hisi_sas_phy {
+ struct work_struct works[HISI_PHYES_NUM];
+ struct hisi_hba *hisi_hba;
+ struct hisi_sas_port *port;
+ struct asd_sas_phy sas_phy;
+ struct sas_identify identify;
+ struct completion *reset_completion;
+ struct timer_list timer;
+ spinlock_t lock;
+ u64 port_id; /* from hw */
+ u64 frame_rcvd_size;
+ u8 frame_rcvd[32];
+ u8 phy_attached;
+ u8 in_reset;
+ u8 reserved[2];
+ u32 phy_type;
+ u32 code_violation_err_count;
+ enum sas_linkrate minimum_linkrate;
+ enum sas_linkrate maximum_linkrate;
+ int enable;
+ atomic_t down_cnt;
+};
+
+struct hisi_sas_port {
+ struct asd_sas_port sas_port;
+ u8 port_attached;
+ u8 id; /* from hw */
+};
+
+struct hisi_sas_cq {
+ struct hisi_hba *hisi_hba;
+ const struct cpumask *irq_mask;
+ int rd_point;
+ int id;
+ int irq_no;
+};
+
+struct hisi_sas_dq {
+ struct hisi_hba *hisi_hba;
+ struct list_head list;
+ spinlock_t lock;
+ int wr_point;
+ int id;
+};
+
+struct hisi_sas_device {
+ struct hisi_hba *hisi_hba;
+ struct domain_device *sas_device;
+ struct completion *completion;
+ struct hisi_sas_dq *dq;
+ struct list_head list;
+ enum sas_device_type dev_type;
+ enum dev_status dev_status;
+ int device_id;
+ int sata_idx;
+ spinlock_t lock; /* For protecting slots */
+};
+
+struct hisi_sas_tmf_task {
+ int force_phy;
+ int phy_id;
+ u8 tmf;
+ u16 tag_of_task_to_be_managed;
+};
+
+struct hisi_sas_slot {
+ struct list_head entry;
+ struct list_head delivery;
+ struct sas_task *task;
+ struct hisi_sas_port *port;
+ u64 n_elem;
+ u64 n_elem_dif;
+ int dlvry_queue;
+ int dlvry_queue_slot;
+ int cmplt_queue;
+ int cmplt_queue_slot;
+ int abort;
+ int ready;
+ int device_id;
+ void *cmd_hdr;
+ dma_addr_t cmd_hdr_dma;
+ struct timer_list internal_abort_timer;
+ bool is_internal;
+ struct hisi_sas_tmf_task *tmf;
+ /* Do not reorder/change members after here */
+ void *buf;
+ dma_addr_t buf_dma;
+ u16 idx;
+};
+
+#define HISI_SAS_DEBUGFS_REG(x) {#x, x}
+
+struct hisi_sas_debugfs_reg_lu {
+ char *name;
+ int off;
+};
+
+struct hisi_sas_debugfs_reg {
+ const struct hisi_sas_debugfs_reg_lu *lu;
+ int count;
+ int base_off;
+ union {
+ u32 (*read_global_reg)(struct hisi_hba *hisi_hba, u32 off);
+ u32 (*read_port_reg)(struct hisi_hba *hisi_hba, int port,
+ u32 off);
+ };
+};
+
+struct hisi_sas_iost_itct_cache {
+ u32 data[HISI_SAS_IOST_ITCT_CACHE_DW_SZ];
+};
+
+enum hisi_sas_debugfs_reg_array_member {
+ DEBUGFS_GLOBAL = 0,
+ DEBUGFS_AXI,
+ DEBUGFS_RAS,
+ DEBUGFS_REGS_NUM
+};
+
+enum hisi_sas_debugfs_cache_type {
+ HISI_SAS_ITCT_CACHE,
+ HISI_SAS_IOST_CACHE,
+};
+
+enum hisi_sas_debugfs_bist_ffe_cfg {
+ FFE_SAS_1_5_GBPS,
+ FFE_SAS_3_0_GBPS,
+ FFE_SAS_6_0_GBPS,
+ FFE_SAS_12_0_GBPS,
+ FFE_RESV,
+ FFE_SATA_1_5_GBPS,
+ FFE_SATA_3_0_GBPS,
+ FFE_SATA_6_0_GBPS,
+ FFE_CFG_MAX
+};
+
+enum hisi_sas_debugfs_bist_fixed_code {
+ FIXED_CODE,
+ FIXED_CODE_1,
+ FIXED_CODE_MAX
+};
+
+enum {
+ HISI_SAS_BIST_CODE_MODE_PRBS7,
+ HISI_SAS_BIST_CODE_MODE_PRBS23,
+ HISI_SAS_BIST_CODE_MODE_PRBS31,
+ HISI_SAS_BIST_CODE_MODE_JTPAT,
+ HISI_SAS_BIST_CODE_MODE_CJTPAT,
+ HISI_SAS_BIST_CODE_MODE_SCRAMBED_0,
+ HISI_SAS_BIST_CODE_MODE_TRAIN,
+ HISI_SAS_BIST_CODE_MODE_TRAIN_DONE,
+ HISI_SAS_BIST_CODE_MODE_HFTP,
+ HISI_SAS_BIST_CODE_MODE_MFTP,
+ HISI_SAS_BIST_CODE_MODE_LFTP,
+ HISI_SAS_BIST_CODE_MODE_FIXED_DATA,
+};
+
+struct hisi_sas_hw {
+ int (*hw_init)(struct hisi_hba *hisi_hba);
+ void (*setup_itct)(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *device);
+ int (*slot_index_alloc)(struct hisi_hba *hisi_hba,
+ struct domain_device *device);
+ struct hisi_sas_device *(*alloc_dev)(struct domain_device *device);
+ void (*sl_notify_ssp)(struct hisi_hba *hisi_hba, int phy_no);
+ void (*start_delivery)(struct hisi_sas_dq *dq);
+ void (*prep_ssp)(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot);
+ void (*prep_smp)(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot);
+ void (*prep_stp)(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot);
+ void (*prep_abort)(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ int device_id, int abort_flag, int tag_to_abort);
+ void (*phys_init)(struct hisi_hba *hisi_hba);
+ void (*phy_start)(struct hisi_hba *hisi_hba, int phy_no);
+ void (*phy_disable)(struct hisi_hba *hisi_hba, int phy_no);
+ void (*phy_hard_reset)(struct hisi_hba *hisi_hba, int phy_no);
+ void (*get_events)(struct hisi_hba *hisi_hba, int phy_no);
+ void (*phy_set_linkrate)(struct hisi_hba *hisi_hba, int phy_no,
+ struct sas_phy_linkrates *linkrates);
+ enum sas_linkrate (*phy_get_max_linkrate)(void);
+ int (*clear_itct)(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *dev);
+ void (*free_device)(struct hisi_sas_device *sas_dev);
+ int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
+ void (*dereg_device)(struct hisi_hba *hisi_hba,
+ struct domain_device *device);
+ int (*soft_reset)(struct hisi_hba *hisi_hba);
+ u32 (*get_phys_state)(struct hisi_hba *hisi_hba);
+ int (*write_gpio)(struct hisi_hba *hisi_hba, u8 reg_type,
+ u8 reg_index, u8 reg_count, u8 *write_data);
+ void (*wait_cmds_complete_timeout)(struct hisi_hba *hisi_hba,
+ int delay_ms, int timeout_ms);
+ void (*snapshot_prepare)(struct hisi_hba *hisi_hba);
+ void (*snapshot_restore)(struct hisi_hba *hisi_hba);
+ int (*set_bist)(struct hisi_hba *hisi_hba, bool enable);
+ void (*read_iost_itct_cache)(struct hisi_hba *hisi_hba,
+ enum hisi_sas_debugfs_cache_type type,
+ u32 *cache);
+ int complete_hdr_size;
+ struct scsi_host_template *sht;
+
+ const struct hisi_sas_debugfs_reg *debugfs_reg_array[DEBUGFS_REGS_NUM];
+ const struct hisi_sas_debugfs_reg *debugfs_reg_port;
+};
+
+#define HISI_SAS_MAX_DEBUGFS_DUMP (50)
+
+struct hisi_sas_debugfs_cq {
+ struct hisi_sas_cq *cq;
+ void *complete_hdr;
+};
+
+struct hisi_sas_debugfs_dq {
+ struct hisi_sas_dq *dq;
+ struct hisi_sas_cmd_hdr *hdr;
+};
+
+struct hisi_sas_debugfs_regs {
+ struct hisi_hba *hisi_hba;
+ u32 *data;
+};
+
+struct hisi_sas_debugfs_port {
+ struct hisi_sas_phy *phy;
+ u32 *data;
+};
+
+struct hisi_sas_debugfs_iost {
+ struct hisi_sas_iost *iost;
+};
+
+struct hisi_sas_debugfs_itct {
+ struct hisi_sas_itct *itct;
+};
+
+struct hisi_sas_debugfs_iost_cache {
+ struct hisi_sas_iost_itct_cache *cache;
+};
+
+struct hisi_sas_debugfs_itct_cache {
+ struct hisi_sas_iost_itct_cache *cache;
+};
+
+struct hisi_hba {
+ /* This must be the first element, used by SHOST_TO_SAS_HA */
+ struct sas_ha_struct *p;
+
+ struct platform_device *platform_dev;
+ struct pci_dev *pci_dev;
+ struct device *dev;
+
+ int prot_mask;
+
+ void __iomem *regs;
+ void __iomem *sgpio_regs;
+ struct regmap *ctrl;
+ u32 ctrl_reset_reg;
+ u32 ctrl_reset_sts_reg;
+ u32 ctrl_clock_ena_reg;
+ u32 refclk_frequency_mhz;
+ u8 sas_addr[SAS_ADDR_SIZE];
+
+ int n_phy;
+ spinlock_t lock;
+ struct semaphore sem;
+
+ struct timer_list timer;
+ struct workqueue_struct *wq;
+
+ int slot_index_count;
+ int last_slot_index;
+ int last_dev_id;
+ unsigned long *slot_index_tags;
+ unsigned long reject_stp_links_msk;
+
+ /* SCSI/SAS glue */
+ struct sas_ha_struct sha;
+ struct Scsi_Host *shost;
+
+ struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_dq dq[HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
+ struct hisi_sas_port port[HISI_SAS_MAX_PHYS];
+
+ int queue_count;
+
+ struct hisi_sas_device devices[HISI_SAS_MAX_DEVICES];
+ struct hisi_sas_cmd_hdr *cmd_hdr[HISI_SAS_MAX_QUEUES];
+ dma_addr_t cmd_hdr_dma[HISI_SAS_MAX_QUEUES];
+ void *complete_hdr[HISI_SAS_MAX_QUEUES];
+ dma_addr_t complete_hdr_dma[HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_initial_fis *initial_fis;
+ dma_addr_t initial_fis_dma;
+ struct hisi_sas_itct *itct;
+ dma_addr_t itct_dma;
+ struct hisi_sas_iost *iost;
+ dma_addr_t iost_dma;
+ struct hisi_sas_breakpoint *breakpoint;
+ dma_addr_t breakpoint_dma;
+ struct hisi_sas_breakpoint *sata_breakpoint;
+ dma_addr_t sata_breakpoint_dma;
+ struct hisi_sas_slot *slot_info;
+ unsigned long flags;
+ const struct hisi_sas_hw *hw; /* Low level hw interface */
+ unsigned long sata_dev_bitmap[BITS_TO_LONGS(HISI_SAS_MAX_DEVICES)];
+ struct work_struct rst_work;
+ struct work_struct debugfs_work;
+ u32 phy_state;
+ u32 intr_coal_ticks; /* Time of interrupt coalesce in us */
+ u32 intr_coal_count; /* Interrupt count to coalesce */
+
+ int cq_nvecs;
+
+ /* bist */
+ enum sas_linkrate debugfs_bist_linkrate;
+ int debugfs_bist_code_mode;
+ int debugfs_bist_phy_no;
+ int debugfs_bist_mode;
+ u32 debugfs_bist_cnt;
+ int debugfs_bist_enable;
+ u32 debugfs_bist_ffe[HISI_SAS_MAX_PHYS][FFE_CFG_MAX];
+ u32 debugfs_bist_fixed_code[FIXED_CODE_MAX];
+
+ /* debugfs memories */
+ /* Put Global AXI and RAS Register into register array */
+ struct hisi_sas_debugfs_regs debugfs_regs[HISI_SAS_MAX_DEBUGFS_DUMP][DEBUGFS_REGS_NUM];
+ struct hisi_sas_debugfs_port debugfs_port_reg[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_PHYS];
+ struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_debugfs_iost debugfs_iost[HISI_SAS_MAX_DEBUGFS_DUMP];
+ struct hisi_sas_debugfs_itct debugfs_itct[HISI_SAS_MAX_DEBUGFS_DUMP];
+ struct hisi_sas_debugfs_iost_cache debugfs_iost_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
+ struct hisi_sas_debugfs_itct_cache debugfs_itct_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
+
+ u64 debugfs_timestamp[HISI_SAS_MAX_DEBUGFS_DUMP];
+ int debugfs_dump_index;
+ struct dentry *debugfs_dir;
+ struct dentry *debugfs_dump_dentry;
+ struct dentry *debugfs_bist_dentry;
+};
+
+/* Generic HW DMA host memory structures */
+/* Delivery queue header */
+struct hisi_sas_cmd_hdr {
+ /* dw0 */
+ __le32 dw0;
+
+ /* dw1 */
+ __le32 dw1;
+
+ /* dw2 */
+ __le32 dw2;
+
+ /* dw3 */
+ __le32 transfer_tags;
+
+ /* dw4 */
+ __le32 data_transfer_len;
+
+ /* dw5 */
+ __le32 first_burst_num;
+
+ /* dw6 */
+ __le32 sg_len;
+
+ /* dw7 */
+ __le32 dw7;
+
+ /* dw8-9 */
+ __le64 cmd_table_addr;
+
+ /* dw10-11 */
+ __le64 sts_buffer_addr;
+
+ /* dw12-13 */
+ __le64 prd_table_addr;
+
+ /* dw14-15 */
+ __le64 dif_prd_table_addr;
+};
+
+struct hisi_sas_itct {
+ __le64 qw0;
+ __le64 sas_addr;
+ __le64 qw2;
+ __le64 qw3;
+ __le64 qw4_15[12];
+};
+
+struct hisi_sas_iost {
+ __le64 qw0;
+ __le64 qw1;
+ __le64 qw2;
+ __le64 qw3;
+};
+
+struct hisi_sas_err_record {
+ u32 data[4];
+};
+
+struct hisi_sas_initial_fis {
+ struct hisi_sas_err_record err_record;
+ struct dev_to_host_fis fis;
+ u32 rsvd[3];
+};
+
+struct hisi_sas_breakpoint {
+ u8 data[128];
+};
+
+struct hisi_sas_sata_breakpoint {
+ struct hisi_sas_breakpoint tag[32];
+};
+
+struct hisi_sas_sge {
+ __le64 addr;
+ __le32 page_ctrl_0;
+ __le32 page_ctrl_1;
+ __le32 data_len;
+ __le32 data_off;
+};
+
+struct hisi_sas_command_table_smp {
+ u8 bytes[44];
+};
+
+struct hisi_sas_command_table_stp {
+ struct host_to_dev_fis command_fis;
+ u8 dummy[12];
+ u8 atapi_cdb[ATAPI_CDB_LEN];
+};
+
+#define HISI_SAS_SGE_PAGE_CNT (124)
+struct hisi_sas_sge_page {
+ struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
+} __aligned(16);
+
+#define HISI_SAS_SGE_DIF_PAGE_CNT HISI_SAS_SGE_PAGE_CNT
+struct hisi_sas_sge_dif_page {
+ struct hisi_sas_sge sge[HISI_SAS_SGE_DIF_PAGE_CNT];
+} __aligned(16);
+
+struct hisi_sas_command_table_ssp {
+ struct ssp_frame_hdr hdr;
+ union {
+ struct {
+ struct ssp_command_iu task;
+ u32 prot[7];
+ };
+ struct ssp_tmf_iu ssp_task;
+ struct xfer_rdy_iu xfer_rdy;
+ struct ssp_response_iu ssp_res;
+ } u;
+};
+
+union hisi_sas_command_table {
+ struct hisi_sas_command_table_ssp ssp;
+ struct hisi_sas_command_table_smp smp;
+ struct hisi_sas_command_table_stp stp;
+} __aligned(16);
+
+struct hisi_sas_status_buffer {
+ struct hisi_sas_err_record err;
+ u8 iu[1024];
+} __aligned(16);
+
+struct hisi_sas_slot_buf_table {
+ struct hisi_sas_status_buffer status_buffer;
+ union hisi_sas_command_table command_header;
+ struct hisi_sas_sge_page sge_page;
+};
+
+struct hisi_sas_slot_dif_buf_table {
+ struct hisi_sas_slot_buf_table slot_buf;
+ struct hisi_sas_sge_dif_page sge_dif_page;
+};
+
+extern struct scsi_transport_template *hisi_sas_stt;
+
+extern bool hisi_sas_debugfs_enable;
+extern u32 hisi_sas_debugfs_dump_count;
+extern struct dentry *hisi_sas_debugfs_dir;
+
+extern void hisi_sas_stop_phys(struct hisi_hba *hisi_hba);
+extern int hisi_sas_alloc(struct hisi_hba *hisi_hba);
+extern void hisi_sas_free(struct hisi_hba *hisi_hba);
+extern u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis,
+ int direction);
+extern struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port);
+extern void hisi_sas_sata_done(struct sas_task *task,
+ struct hisi_sas_slot *slot);
+extern int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba);
+extern int hisi_sas_probe(struct platform_device *pdev,
+ const struct hisi_sas_hw *ops);
+extern int hisi_sas_remove(struct platform_device *pdev);
+
+extern int hisi_sas_slave_configure(struct scsi_device *sdev);
+extern int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time);
+extern void hisi_sas_scan_start(struct Scsi_Host *shost);
+extern int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type);
+extern void hisi_sas_phy_enable(struct hisi_hba *hisi_hba, int phy_no,
+ int enable);
+extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy);
+extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
+ struct sas_task *task,
+ struct hisi_sas_slot *slot);
+extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba);
+extern void hisi_sas_rst_work_handler(struct work_struct *work);
+extern void hisi_sas_sync_rst_work_handler(struct work_struct *work);
+extern void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba);
+extern void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no);
+extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
+ enum hisi_sas_phy_event event);
+extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba);
+extern u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max);
+extern void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba);
+extern void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba);
+extern void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba);
+extern void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba);
+extern void hisi_sas_debugfs_work_handler(struct work_struct *work);
+#endif
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
new file mode 100644
index 000000000..8e5d23c6b
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -0,0 +1,4102 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2015 Linaro Ltd.
+ * Copyright (c) 2015 Hisilicon Limited.
+ */
+
+#include "hisi_sas.h"
+#define DRV_NAME "hisi_sas"
+
+#define DEV_IS_GONE(dev) \
+ ((!dev) || (dev->dev_type == SAS_PHY_UNUSED))
+
+static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
+ u8 *lun, struct hisi_sas_tmf_task *tmf);
+static int
+hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
+ struct domain_device *device,
+ int abort_flag, int tag);
+static int hisi_sas_softreset_ata_disk(struct domain_device *device);
+static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func,
+ void *funcdata);
+static void hisi_sas_release_task(struct hisi_hba *hisi_hba,
+ struct domain_device *device);
+static void hisi_sas_dev_gone(struct domain_device *device);
+
+u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction)
+{
+ switch (fis->command) {
+ case ATA_CMD_FPDMA_WRITE:
+ case ATA_CMD_FPDMA_READ:
+ case ATA_CMD_FPDMA_RECV:
+ case ATA_CMD_FPDMA_SEND:
+ case ATA_CMD_NCQ_NON_DATA:
+ return HISI_SAS_SATA_PROTOCOL_FPDMA;
+
+ case ATA_CMD_DOWNLOAD_MICRO:
+ case ATA_CMD_ID_ATA:
+ case ATA_CMD_PMP_READ:
+ case ATA_CMD_READ_LOG_EXT:
+ case ATA_CMD_PIO_READ:
+ case ATA_CMD_PIO_READ_EXT:
+ case ATA_CMD_PMP_WRITE:
+ case ATA_CMD_WRITE_LOG_EXT:
+ case ATA_CMD_PIO_WRITE:
+ case ATA_CMD_PIO_WRITE_EXT:
+ return HISI_SAS_SATA_PROTOCOL_PIO;
+
+ case ATA_CMD_DSM:
+ case ATA_CMD_DOWNLOAD_MICRO_DMA:
+ case ATA_CMD_PMP_READ_DMA:
+ case ATA_CMD_PMP_WRITE_DMA:
+ case ATA_CMD_READ:
+ case ATA_CMD_READ_EXT:
+ case ATA_CMD_READ_LOG_DMA_EXT:
+ case ATA_CMD_READ_STREAM_DMA_EXT:
+ case ATA_CMD_TRUSTED_RCV_DMA:
+ case ATA_CMD_TRUSTED_SND_DMA:
+ case ATA_CMD_WRITE:
+ case ATA_CMD_WRITE_EXT:
+ case ATA_CMD_WRITE_FUA_EXT:
+ case ATA_CMD_WRITE_QUEUED:
+ case ATA_CMD_WRITE_LOG_DMA_EXT:
+ case ATA_CMD_WRITE_STREAM_DMA_EXT:
+ case ATA_CMD_ZAC_MGMT_IN:
+ return HISI_SAS_SATA_PROTOCOL_DMA;
+
+ case ATA_CMD_CHK_POWER:
+ case ATA_CMD_DEV_RESET:
+ case ATA_CMD_EDD:
+ case ATA_CMD_FLUSH:
+ case ATA_CMD_FLUSH_EXT:
+ case ATA_CMD_VERIFY:
+ case ATA_CMD_VERIFY_EXT:
+ case ATA_CMD_SET_FEATURES:
+ case ATA_CMD_STANDBY:
+ case ATA_CMD_STANDBYNOW1:
+ case ATA_CMD_ZAC_MGMT_OUT:
+ return HISI_SAS_SATA_PROTOCOL_NONDATA;
+
+ case ATA_CMD_SET_MAX:
+ switch (fis->features) {
+ case ATA_SET_MAX_PASSWD:
+ case ATA_SET_MAX_LOCK:
+ return HISI_SAS_SATA_PROTOCOL_PIO;
+
+ case ATA_SET_MAX_PASSWD_DMA:
+ case ATA_SET_MAX_UNLOCK_DMA:
+ return HISI_SAS_SATA_PROTOCOL_DMA;
+
+ default:
+ return HISI_SAS_SATA_PROTOCOL_NONDATA;
+ }
+
+ default:
+ {
+ if (direction == DMA_NONE)
+ return HISI_SAS_SATA_PROTOCOL_NONDATA;
+ return HISI_SAS_SATA_PROTOCOL_PIO;
+ }
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol);
+
+void hisi_sas_sata_done(struct sas_task *task,
+ struct hisi_sas_slot *slot)
+{
+ struct task_status_struct *ts = &task->task_status;
+ struct ata_task_resp *resp = (struct ata_task_resp *)ts->buf;
+ struct hisi_sas_status_buffer *status_buf =
+ hisi_sas_status_buf_addr_mem(slot);
+ u8 *iu = &status_buf->iu[0];
+ struct dev_to_host_fis *d2h = (struct dev_to_host_fis *)iu;
+
+ resp->frame_len = sizeof(struct dev_to_host_fis);
+ memcpy(&resp->ending_fis[0], d2h, sizeof(struct dev_to_host_fis));
+
+ ts->buf_valid_size = sizeof(*resp);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_sata_done);
+
+/*
+ * This function assumes linkrate mask fits in 8 bits, which it
+ * does for all HW versions supported.
+ */
+u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max)
+{
+ u8 rate = 0;
+ int i;
+
+ max -= SAS_LINK_RATE_1_5_GBPS;
+ for (i = 0; i <= max; i++)
+ rate |= 1 << (i * 2);
+ return rate;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_get_prog_phy_linkrate_mask);
+
+static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device)
+{
+ return device->port->ha->lldd_ha;
+}
+
+struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port)
+{
+ return container_of(sas_port, struct hisi_sas_port, sas_port);
+}
+EXPORT_SYMBOL_GPL(to_hisi_sas_port);
+
+void hisi_sas_stop_phys(struct hisi_hba *hisi_hba)
+{
+ int phy_no;
+
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++)
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_stop_phys);
+
+static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx)
+{
+ void *bitmap = hisi_hba->slot_index_tags;
+
+ clear_bit(slot_idx, bitmap);
+}
+
+static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx)
+{
+ if (hisi_hba->hw->slot_index_alloc ||
+ slot_idx >= HISI_SAS_UNRESERVED_IPTT) {
+ spin_lock(&hisi_hba->lock);
+ hisi_sas_slot_index_clear(hisi_hba, slot_idx);
+ spin_unlock(&hisi_hba->lock);
+ }
+}
+
+static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx)
+{
+ void *bitmap = hisi_hba->slot_index_tags;
+
+ set_bit(slot_idx, bitmap);
+}
+
+static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba,
+ struct scsi_cmnd *scsi_cmnd)
+{
+ int index;
+ void *bitmap = hisi_hba->slot_index_tags;
+
+ if (scsi_cmnd)
+ return scsi_cmnd->request->tag;
+
+ spin_lock(&hisi_hba->lock);
+ index = find_next_zero_bit(bitmap, hisi_hba->slot_index_count,
+ hisi_hba->last_slot_index + 1);
+ if (index >= hisi_hba->slot_index_count) {
+ index = find_next_zero_bit(bitmap,
+ hisi_hba->slot_index_count,
+ HISI_SAS_UNRESERVED_IPTT);
+ if (index >= hisi_hba->slot_index_count) {
+ spin_unlock(&hisi_hba->lock);
+ return -SAS_QUEUE_FULL;
+ }
+ }
+ hisi_sas_slot_index_set(hisi_hba, index);
+ hisi_hba->last_slot_index = index;
+ spin_unlock(&hisi_hba->lock);
+
+ return index;
+}
+
+static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ for (i = 0; i < hisi_hba->slot_index_count; ++i)
+ hisi_sas_slot_index_clear(hisi_hba, i);
+}
+
+void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task,
+ struct hisi_sas_slot *slot)
+{
+ int device_id = slot->device_id;
+ struct hisi_sas_device *sas_dev = &hisi_hba->devices[device_id];
+
+ if (task) {
+ struct device *dev = hisi_hba->dev;
+
+ if (!task->lldd_task)
+ return;
+
+ task->lldd_task = NULL;
+
+ if (!sas_protocol_ata(task->task_proto)) {
+ if (slot->n_elem)
+ dma_unmap_sg(dev, task->scatter,
+ task->num_scatter,
+ task->data_dir);
+ if (slot->n_elem_dif) {
+ struct sas_ssp_task *ssp_task = &task->ssp_task;
+ struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+
+ dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd),
+ task->data_dir);
+ }
+ }
+ }
+
+ spin_lock(&sas_dev->lock);
+ list_del_init(&slot->entry);
+ spin_unlock(&sas_dev->lock);
+
+ memset(slot, 0, offsetof(struct hisi_sas_slot, buf));
+
+ hisi_sas_slot_index_free(hisi_hba, slot->idx);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free);
+
+static void hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ hisi_hba->hw->prep_smp(hisi_hba, slot);
+}
+
+static void hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ hisi_hba->hw->prep_ssp(hisi_hba, slot);
+}
+
+static void hisi_sas_task_prep_ata(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ hisi_hba->hw->prep_stp(hisi_hba, slot);
+}
+
+static void hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ int device_id, int abort_flag, int tag_to_abort)
+{
+ hisi_hba->hw->prep_abort(hisi_hba, slot,
+ device_id, abort_flag, tag_to_abort);
+}
+
+static void hisi_sas_dma_unmap(struct hisi_hba *hisi_hba,
+ struct sas_task *task, int n_elem,
+ int n_elem_req)
+{
+ struct device *dev = hisi_hba->dev;
+
+ if (!sas_protocol_ata(task->task_proto)) {
+ if (task->num_scatter) {
+ if (n_elem)
+ dma_unmap_sg(dev, task->scatter,
+ task->num_scatter,
+ task->data_dir);
+ } else if (task->task_proto & SAS_PROTOCOL_SMP) {
+ if (n_elem_req)
+ dma_unmap_sg(dev, &task->smp_task.smp_req,
+ 1, DMA_TO_DEVICE);
+ }
+ }
+}
+
+static int hisi_sas_dma_map(struct hisi_hba *hisi_hba,
+ struct sas_task *task, int *n_elem,
+ int *n_elem_req)
+{
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ if (sas_protocol_ata(task->task_proto)) {
+ *n_elem = task->num_scatter;
+ } else {
+ unsigned int req_len;
+
+ if (task->num_scatter) {
+ *n_elem = dma_map_sg(dev, task->scatter,
+ task->num_scatter, task->data_dir);
+ if (!*n_elem) {
+ rc = -ENOMEM;
+ goto prep_out;
+ }
+ } else if (task->task_proto & SAS_PROTOCOL_SMP) {
+ *n_elem_req = dma_map_sg(dev, &task->smp_task.smp_req,
+ 1, DMA_TO_DEVICE);
+ if (!*n_elem_req) {
+ rc = -ENOMEM;
+ goto prep_out;
+ }
+ req_len = sg_dma_len(&task->smp_task.smp_req);
+ if (req_len & 0x3) {
+ rc = -EINVAL;
+ goto err_out_dma_unmap;
+ }
+ }
+ }
+
+ if (*n_elem > HISI_SAS_SGE_PAGE_CNT) {
+ dev_err(dev, "task prep: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT\n",
+ *n_elem);
+ rc = -EINVAL;
+ goto err_out_dma_unmap;
+ }
+ return 0;
+
+err_out_dma_unmap:
+ /* It would be better to call dma_unmap_sg() here, but it's messy */
+ hisi_sas_dma_unmap(hisi_hba, task, *n_elem,
+ *n_elem_req);
+prep_out:
+ return rc;
+}
+
+static void hisi_sas_dif_dma_unmap(struct hisi_hba *hisi_hba,
+ struct sas_task *task, int n_elem_dif)
+{
+ struct device *dev = hisi_hba->dev;
+
+ if (n_elem_dif) {
+ struct sas_ssp_task *ssp_task = &task->ssp_task;
+ struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+
+ dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd),
+ task->data_dir);
+ }
+}
+
+static int hisi_sas_dif_dma_map(struct hisi_hba *hisi_hba,
+ int *n_elem_dif, struct sas_task *task)
+{
+ struct device *dev = hisi_hba->dev;
+ struct sas_ssp_task *ssp_task;
+ struct scsi_cmnd *scsi_cmnd;
+ int rc;
+
+ if (task->num_scatter) {
+ ssp_task = &task->ssp_task;
+ scsi_cmnd = ssp_task->cmd;
+
+ if (scsi_prot_sg_count(scsi_cmnd)) {
+ *n_elem_dif = dma_map_sg(dev,
+ scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd),
+ task->data_dir);
+
+ if (!*n_elem_dif)
+ return -ENOMEM;
+
+ if (*n_elem_dif > HISI_SAS_SGE_DIF_PAGE_CNT) {
+ dev_err(dev, "task prep: n_elem_dif(%d) too large\n",
+ *n_elem_dif);
+ rc = -EINVAL;
+ goto err_out_dif_dma_unmap;
+ }
+ }
+ }
+
+ return 0;
+
+err_out_dif_dma_unmap:
+ dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd),
+ scsi_prot_sg_count(scsi_cmnd), task->data_dir);
+ return rc;
+}
+
+static int hisi_sas_task_prep(struct sas_task *task,
+ struct hisi_sas_dq **dq_pointer,
+ bool is_tmf, struct hisi_sas_tmf_task *tmf,
+ int *pass)
+{
+ struct domain_device *device = task->dev;
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_sas_port *port;
+ struct hisi_sas_slot *slot;
+ struct hisi_sas_cmd_hdr *cmd_hdr_base;
+ struct asd_sas_port *sas_port = device->port;
+ struct device *dev = hisi_hba->dev;
+ int dlvry_queue_slot, dlvry_queue, rc, slot_idx;
+ int n_elem = 0, n_elem_dif = 0, n_elem_req = 0;
+ struct scsi_cmnd *scmd = NULL;
+ struct hisi_sas_dq *dq;
+ unsigned long flags;
+ int wr_q_index;
+
+ if (DEV_IS_GONE(sas_dev)) {
+ if (sas_dev)
+ dev_info(dev, "task prep: device %d not ready\n",
+ sas_dev->device_id);
+ else
+ dev_info(dev, "task prep: device %016llx not ready\n",
+ SAS_ADDR(device->sas_addr));
+
+ return -ECOMM;
+ }
+
+ if (task->uldd_task) {
+ struct ata_queued_cmd *qc;
+
+ if (dev_is_sata(device)) {
+ qc = task->uldd_task;
+ scmd = qc->scsicmd;
+ } else {
+ scmd = task->uldd_task;
+ }
+ }
+
+ if (scmd && hisi_hba->shost->nr_hw_queues) {
+ unsigned int dq_index;
+ u32 blk_tag;
+
+ blk_tag = blk_mq_unique_tag(scmd->request);
+ dq_index = blk_mq_unique_tag_to_hwq(blk_tag);
+ *dq_pointer = dq = &hisi_hba->dq[dq_index];
+ } else if (hisi_hba->shost->nr_hw_queues) {
+ struct Scsi_Host *shost = hisi_hba->shost;
+ struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
+ int queue = qmap->mq_map[raw_smp_processor_id()];
+
+ *dq_pointer = dq = &hisi_hba->dq[queue];
+ } else {
+ *dq_pointer = dq = sas_dev->dq;
+ }
+
+ port = to_hisi_sas_port(sas_port);
+ if (port && !port->port_attached) {
+ dev_info(dev, "task prep: %s port%d not attach device\n",
+ (dev_is_sata(device)) ?
+ "SATA/STP" : "SAS",
+ device->port->id);
+
+ return -ECOMM;
+ }
+
+ rc = hisi_sas_dma_map(hisi_hba, task, &n_elem,
+ &n_elem_req);
+ if (rc < 0)
+ goto prep_out;
+
+ if (!sas_protocol_ata(task->task_proto)) {
+ rc = hisi_sas_dif_dma_map(hisi_hba, &n_elem_dif, task);
+ if (rc < 0)
+ goto err_out_dma_unmap;
+ }
+
+ if (hisi_hba->hw->slot_index_alloc)
+ rc = hisi_hba->hw->slot_index_alloc(hisi_hba, device);
+ else
+ rc = hisi_sas_slot_index_alloc(hisi_hba, scmd);
+
+ if (rc < 0)
+ goto err_out_dif_dma_unmap;
+
+ slot_idx = rc;
+ slot = &hisi_hba->slot_info[slot_idx];
+
+ spin_lock(&dq->lock);
+ wr_q_index = dq->wr_point;
+ dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS;
+ list_add_tail(&slot->delivery, &dq->list);
+ spin_unlock(&dq->lock);
+ spin_lock(&sas_dev->lock);
+ list_add_tail(&slot->entry, &sas_dev->list);
+ spin_unlock(&sas_dev->lock);
+
+ dlvry_queue = dq->id;
+ dlvry_queue_slot = wr_q_index;
+
+ slot->device_id = sas_dev->device_id;
+ slot->n_elem = n_elem;
+ slot->n_elem_dif = n_elem_dif;
+ slot->dlvry_queue = dlvry_queue;
+ slot->dlvry_queue_slot = dlvry_queue_slot;
+ cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue];
+ slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot];
+ slot->task = task;
+ slot->port = port;
+ slot->tmf = tmf;
+ slot->is_internal = is_tmf;
+ task->lldd_task = slot;
+
+ memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr));
+ memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ);
+ memset(hisi_sas_status_buf_addr_mem(slot), 0,
+ sizeof(struct hisi_sas_err_record));
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SMP:
+ hisi_sas_task_prep_smp(hisi_hba, slot);
+ break;
+ case SAS_PROTOCOL_SSP:
+ hisi_sas_task_prep_ssp(hisi_hba, slot);
+ break;
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ hisi_sas_task_prep_ata(hisi_hba, slot);
+ break;
+ default:
+ dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n",
+ task->task_proto);
+ break;
+ }
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ task->task_state_flags |= SAS_TASK_AT_INITIATOR;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+ ++(*pass);
+ WRITE_ONCE(slot->ready, 1);
+
+ return 0;
+
+err_out_dif_dma_unmap:
+ if (!sas_protocol_ata(task->task_proto))
+ hisi_sas_dif_dma_unmap(hisi_hba, task, n_elem_dif);
+err_out_dma_unmap:
+ hisi_sas_dma_unmap(hisi_hba, task, n_elem,
+ n_elem_req);
+prep_out:
+ dev_err(dev, "task prep: failed[%d]!\n", rc);
+ return rc;
+}
+
+static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
+ bool is_tmf, struct hisi_sas_tmf_task *tmf)
+{
+ u32 rc;
+ u32 pass = 0;
+ struct hisi_hba *hisi_hba;
+ struct device *dev;
+ struct domain_device *device = task->dev;
+ struct asd_sas_port *sas_port = device->port;
+ struct hisi_sas_dq *dq = NULL;
+
+ if (!sas_port) {
+ struct task_status_struct *ts = &task->task_status;
+
+ ts->resp = SAS_TASK_UNDELIVERED;
+ ts->stat = SAS_PHY_DOWN;
+ /*
+ * libsas will use dev->port, should
+ * not call task_done for sata
+ */
+ if (device->dev_type != SAS_SATA_DEV)
+ task->task_done(task);
+ return -ECOMM;
+ }
+
+ hisi_hba = dev_to_hisi_hba(device);
+ dev = hisi_hba->dev;
+
+ if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) {
+ /*
+ * For IOs from upper layer, it may already disable preempt
+ * in the IO path, if disable preempt again in down(),
+ * function schedule() will report schedule_bug(), so check
+ * preemptible() before goto down().
+ */
+ if (!preemptible())
+ return -EINVAL;
+
+ down(&hisi_hba->sem);
+ up(&hisi_hba->sem);
+ }
+
+ /* protect task_prep and start_delivery sequence */
+ rc = hisi_sas_task_prep(task, &dq, is_tmf, tmf, &pass);
+ if (rc)
+ dev_err(dev, "task exec: failed[%d]!\n", rc);
+
+ if (likely(pass)) {
+ spin_lock(&dq->lock);
+ hisi_hba->hw->start_delivery(dq);
+ spin_unlock(&dq->lock);
+ }
+
+ return rc;
+}
+
+static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+
+ if (!phy->phy_attached)
+ return;
+
+ if (test_bit(HISI_SAS_PM_BIT, &hisi_hba->flags) &&
+ !sas_phy->suspended) {
+ dev_warn(hisi_hba->dev, "phy%d during suspend filtered out\n", phy_no);
+ return;
+ }
+
+ sas_notify_phy_event(sas_phy, PHYE_OOB_DONE);
+
+ if (sas_phy->phy) {
+ struct sas_phy *sphy = sas_phy->phy;
+
+ sphy->negotiated_linkrate = sas_phy->linkrate;
+ sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
+ sphy->maximum_linkrate_hw =
+ hisi_hba->hw->phy_get_max_linkrate();
+ if (sphy->minimum_linkrate == SAS_LINK_RATE_UNKNOWN)
+ sphy->minimum_linkrate = phy->minimum_linkrate;
+
+ if (sphy->maximum_linkrate == SAS_LINK_RATE_UNKNOWN)
+ sphy->maximum_linkrate = phy->maximum_linkrate;
+ }
+
+ if (phy->phy_type & PORT_TYPE_SAS) {
+ struct sas_identify_frame *id;
+
+ id = (struct sas_identify_frame *)phy->frame_rcvd;
+ id->dev_type = phy->identify.device_type;
+ id->initiator_bits = SAS_PROTOCOL_ALL;
+ id->target_bits = phy->identify.target_port_protocols;
+ } else if (phy->phy_type & PORT_TYPE_SATA) {
+ /* Nothing */
+ }
+
+ sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
+ sas_notify_port_event(sas_phy, PORTE_BYTES_DMAED);
+}
+
+static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device)
+{
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct hisi_sas_device *sas_dev = NULL;
+ int last = hisi_hba->last_dev_id;
+ int first = (hisi_hba->last_dev_id + 1) % HISI_SAS_MAX_DEVICES;
+ int i;
+
+ spin_lock(&hisi_hba->lock);
+ for (i = first; i != last; i %= HISI_SAS_MAX_DEVICES) {
+ if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) {
+ int queue = i % hisi_hba->queue_count;
+ struct hisi_sas_dq *dq = &hisi_hba->dq[queue];
+
+ hisi_hba->devices[i].device_id = i;
+ sas_dev = &hisi_hba->devices[i];
+ sas_dev->dev_status = HISI_SAS_DEV_INIT;
+ sas_dev->dev_type = device->dev_type;
+ sas_dev->hisi_hba = hisi_hba;
+ sas_dev->sas_device = device;
+ sas_dev->dq = dq;
+ spin_lock_init(&sas_dev->lock);
+ INIT_LIST_HEAD(&hisi_hba->devices[i].list);
+ break;
+ }
+ i++;
+ }
+ hisi_hba->last_dev_id = i;
+ spin_unlock(&hisi_hba->lock);
+
+ return sas_dev;
+}
+
+#define HISI_SAS_DISK_RECOVER_CNT 3
+static int hisi_sas_init_device(struct domain_device *device)
+{
+ int rc = TMF_RESP_FUNC_COMPLETE;
+ struct scsi_lun lun;
+ struct hisi_sas_tmf_task tmf_task;
+ int retry = HISI_SAS_DISK_RECOVER_CNT;
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct device *dev = hisi_hba->dev;
+ struct sas_phy *local_phy;
+
+ switch (device->dev_type) {
+ case SAS_END_DEVICE:
+ int_to_scsilun(0, &lun);
+
+ tmf_task.tmf = TMF_CLEAR_TASK_SET;
+ while (retry-- > 0) {
+ rc = hisi_sas_debug_issue_ssp_tmf(device, lun.scsi_lun,
+ &tmf_task);
+ if (rc == TMF_RESP_FUNC_COMPLETE) {
+ hisi_sas_release_task(hisi_hba, device);
+ break;
+ }
+ }
+ break;
+ case SAS_SATA_DEV:
+ case SAS_SATA_PM:
+ case SAS_SATA_PM_PORT:
+ case SAS_SATA_PENDING:
+ /*
+ * send HARD RESET to clear previous affiliation of
+ * STP target port
+ */
+ local_phy = sas_get_local_phy(device);
+ if (!scsi_is_sas_phy_local(local_phy) &&
+ !test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) {
+ unsigned long deadline = ata_deadline(jiffies, 20000);
+ struct sata_device *sata_dev = &device->sata_dev;
+ struct ata_host *ata_host = sata_dev->ata_host;
+ struct ata_port_operations *ops = ata_host->ops;
+ struct ata_port *ap = sata_dev->ap;
+ struct ata_link *link;
+ unsigned int classes;
+
+ ata_for_each_link(link, ap, EDGE)
+ rc = ops->hardreset(link, &classes,
+ deadline);
+ }
+ sas_put_local_phy(local_phy);
+ if (rc) {
+ dev_warn(dev, "SATA disk hardreset fail: %d\n", rc);
+ return rc;
+ }
+
+ while (retry-- > 0) {
+ rc = hisi_sas_softreset_ata_disk(device);
+ if (!rc)
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ return rc;
+}
+
+static int hisi_sas_dev_found(struct domain_device *device)
+{
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct domain_device *parent_dev = device->parent;
+ struct hisi_sas_device *sas_dev;
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ if (hisi_hba->hw->alloc_dev)
+ sas_dev = hisi_hba->hw->alloc_dev(device);
+ else
+ sas_dev = hisi_sas_alloc_dev(device);
+ if (!sas_dev) {
+ dev_err(dev, "fail alloc dev: max support %d devices\n",
+ HISI_SAS_MAX_DEVICES);
+ return -EINVAL;
+ }
+
+ device->lldd_dev = sas_dev;
+ hisi_hba->hw->setup_itct(hisi_hba, sas_dev);
+
+ if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
+ int phy_no;
+ u8 phy_num = parent_dev->ex_dev.num_phys;
+ struct ex_phy *phy;
+
+ for (phy_no = 0; phy_no < phy_num; phy_no++) {
+ phy = &parent_dev->ex_dev.ex_phy[phy_no];
+ if (SAS_ADDR(phy->attached_sas_addr) ==
+ SAS_ADDR(device->sas_addr))
+ break;
+ }
+
+ if (phy_no == phy_num) {
+ dev_info(dev, "dev found: no attached "
+ "dev:%016llx at ex:%016llx\n",
+ SAS_ADDR(device->sas_addr),
+ SAS_ADDR(parent_dev->sas_addr));
+ rc = -EINVAL;
+ goto err_out;
+ }
+ }
+
+ dev_info(dev, "dev[%d:%x] found\n",
+ sas_dev->device_id, sas_dev->dev_type);
+
+ rc = hisi_sas_init_device(device);
+ if (rc)
+ goto err_out;
+ sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
+ return 0;
+
+err_out:
+ hisi_sas_dev_gone(device);
+ return rc;
+}
+
+int hisi_sas_slave_configure(struct scsi_device *sdev)
+{
+ struct domain_device *dev = sdev_to_domain_dev(sdev);
+ int ret = sas_slave_configure(sdev);
+
+ if (ret)
+ return ret;
+ if (!dev_is_sata(dev))
+ sas_change_queue_depth(sdev, 64);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_slave_configure);
+
+void hisi_sas_scan_start(struct Scsi_Host *shost)
+{
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+
+ hisi_hba->hw->phys_init(hisi_hba);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_scan_start);
+
+int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+ struct sas_ha_struct *sha = &hisi_hba->sha;
+
+ /* Wait for PHY up interrupt to occur */
+ if (time < HZ)
+ return 0;
+
+ sas_drain_work(sha);
+ return 1;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_scan_finished);
+
+static void hisi_sas_phyup_work(struct work_struct *work)
+{
+ struct hisi_sas_phy *phy =
+ container_of(work, typeof(*phy), works[HISI_PHYE_PHY_UP]);
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ int phy_no = sas_phy->id;
+
+ if (phy->identify.target_port_protocols == SAS_PROTOCOL_SSP)
+ hisi_hba->hw->sl_notify_ssp(hisi_hba, phy_no);
+ hisi_sas_bytes_dmaed(hisi_hba, phy_no);
+}
+
+static void hisi_sas_linkreset_work(struct work_struct *work)
+{
+ struct hisi_sas_phy *phy =
+ container_of(work, typeof(*phy), works[HISI_PHYE_LINK_RESET]);
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+
+ hisi_sas_control_phy(sas_phy, PHY_FUNC_LINK_RESET, NULL);
+}
+
+static const work_func_t hisi_sas_phye_fns[HISI_PHYES_NUM] = {
+ [HISI_PHYE_PHY_UP] = hisi_sas_phyup_work,
+ [HISI_PHYE_LINK_RESET] = hisi_sas_linkreset_work,
+};
+
+bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
+ enum hisi_sas_phy_event event)
+{
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+
+ if (WARN_ON(event >= HISI_PHYES_NUM))
+ return false;
+
+ return queue_work(hisi_hba->wq, &phy->works[event]);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_notify_phy_event);
+
+static void hisi_sas_wait_phyup_timedout(struct timer_list *t)
+{
+ struct hisi_sas_phy *phy = from_timer(phy, t, timer);
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct device *dev = hisi_hba->dev;
+ int phy_no = phy->sas_phy.id;
+
+ dev_warn(dev, "phy%d wait phyup timeout, issuing link reset\n", phy_no);
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+}
+
+void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct device *dev = hisi_hba->dev;
+
+ dev_dbg(dev, "phy%d OOB ready\n", phy_no);
+ if (phy->phy_attached)
+ return;
+
+ if (!timer_pending(&phy->timer)) {
+ phy->timer.expires = jiffies + HISI_SAS_WAIT_PHYUP_TIMEOUT * HZ;
+ add_timer(&phy->timer);
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_sas_phy_oob_ready);
+
+static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ int i;
+
+ phy->hisi_hba = hisi_hba;
+ phy->port = NULL;
+ phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
+ phy->maximum_linkrate = hisi_hba->hw->phy_get_max_linkrate();
+ sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0;
+ sas_phy->class = SAS;
+ sas_phy->iproto = SAS_PROTOCOL_ALL;
+ sas_phy->tproto = 0;
+ sas_phy->type = PHY_TYPE_PHYSICAL;
+ sas_phy->role = PHY_ROLE_INITIATOR;
+ sas_phy->oob_mode = OOB_NOT_CONNECTED;
+ sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
+ sas_phy->id = phy_no;
+ sas_phy->sas_addr = &hisi_hba->sas_addr[0];
+ sas_phy->frame_rcvd = &phy->frame_rcvd[0];
+ sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata;
+ sas_phy->lldd_phy = phy;
+
+ for (i = 0; i < HISI_PHYES_NUM; i++)
+ INIT_WORK(&phy->works[i], hisi_sas_phye_fns[i]);
+
+ spin_lock_init(&phy->lock);
+
+ timer_setup(&phy->timer, hisi_sas_wait_phyup_timedout, 0);
+}
+
+/* Wrapper to ensure we track hisi_sas_phy.enable properly */
+void hisi_sas_phy_enable(struct hisi_hba *hisi_hba, int phy_no, int enable)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *aphy = &phy->sas_phy;
+ struct sas_phy *sphy = aphy->phy;
+ unsigned long flags;
+
+ spin_lock_irqsave(&phy->lock, flags);
+
+ if (enable) {
+ /* We may have been enabled already; if so, don't touch */
+ if (!phy->enable)
+ sphy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
+ hisi_hba->hw->phy_start(hisi_hba, phy_no);
+ } else {
+ sphy->negotiated_linkrate = SAS_PHY_DISABLED;
+ hisi_hba->hw->phy_disable(hisi_hba, phy_no);
+ }
+ phy->enable = enable;
+ spin_unlock_irqrestore(&phy->lock, flags);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_phy_enable);
+
+static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy)
+{
+ struct sas_ha_struct *sas_ha = sas_phy->ha;
+ struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
+ struct hisi_sas_phy *phy = sas_phy->lldd_phy;
+ struct asd_sas_port *sas_port = sas_phy->port;
+ struct hisi_sas_port *port;
+ unsigned long flags;
+
+ if (!sas_port)
+ return;
+
+ port = to_hisi_sas_port(sas_port);
+ spin_lock_irqsave(&hisi_hba->lock, flags);
+ port->port_attached = 1;
+ port->id = phy->port_id;
+ phy->port = port;
+ sas_port->lldd_port = port;
+ spin_unlock_irqrestore(&hisi_hba->lock, flags);
+}
+
+static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, struct sas_task *task,
+ struct hisi_sas_slot *slot)
+{
+ if (task) {
+ unsigned long flags;
+ struct task_status_struct *ts;
+
+ ts = &task->task_status;
+
+ ts->resp = SAS_TASK_COMPLETE;
+ ts->stat = SAS_ABORTED_TASK;
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ task->task_state_flags &=
+ ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
+ if (!slot->is_internal && task->task_proto != SAS_PROTOCOL_SMP)
+ task->task_state_flags |= SAS_TASK_STATE_DONE;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ }
+
+ hisi_sas_slot_task_free(hisi_hba, task, slot);
+}
+
+static void hisi_sas_release_task(struct hisi_hba *hisi_hba,
+ struct domain_device *device)
+{
+ struct hisi_sas_slot *slot, *slot2;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+
+ list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry)
+ hisi_sas_do_release_task(hisi_hba, slot->task, slot);
+}
+
+void hisi_sas_release_tasks(struct hisi_hba *hisi_hba)
+{
+ struct hisi_sas_device *sas_dev;
+ struct domain_device *device;
+ int i;
+
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ sas_dev = &hisi_hba->devices[i];
+ device = sas_dev->sas_device;
+
+ if ((sas_dev->dev_type == SAS_PHY_UNUSED) ||
+ !device)
+ continue;
+
+ hisi_sas_release_task(hisi_hba, device);
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_sas_release_tasks);
+
+static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba,
+ struct domain_device *device)
+{
+ if (hisi_hba->hw->dereg_device)
+ hisi_hba->hw->dereg_device(hisi_hba, device);
+}
+
+static void hisi_sas_dev_gone(struct domain_device *device)
+{
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct device *dev = hisi_hba->dev;
+ int ret = 0;
+
+ dev_info(dev, "dev[%d:%x] is gone\n",
+ sas_dev->device_id, sas_dev->dev_type);
+
+ down(&hisi_hba->sem);
+ if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) {
+ hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV, 0);
+
+ hisi_sas_dereg_device(hisi_hba, device);
+
+ ret = hisi_hba->hw->clear_itct(hisi_hba, sas_dev);
+ device->lldd_dev = NULL;
+ }
+
+ if (hisi_hba->hw->free_device)
+ hisi_hba->hw->free_device(sas_dev);
+
+ /* Don't mark it as SAS_PHY_UNUSED if failed to clear ITCT */
+ if (!ret)
+ sas_dev->dev_type = SAS_PHY_UNUSED;
+ sas_dev->sas_device = NULL;
+ up(&hisi_hba->sem);
+}
+
+static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
+{
+ return hisi_sas_task_exec(task, gfp_flags, 0, NULL);
+}
+
+static int hisi_sas_phy_set_linkrate(struct hisi_hba *hisi_hba, int phy_no,
+ struct sas_phy_linkrates *r)
+{
+ struct sas_phy_linkrates _r;
+
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ enum sas_linkrate min, max;
+
+ if (r->minimum_linkrate > SAS_LINK_RATE_1_5_GBPS)
+ return -EINVAL;
+
+ if (r->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) {
+ max = sas_phy->phy->maximum_linkrate;
+ min = r->minimum_linkrate;
+ } else if (r->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) {
+ max = r->maximum_linkrate;
+ min = sas_phy->phy->minimum_linkrate;
+ } else
+ return -EINVAL;
+
+ _r.maximum_linkrate = max;
+ _r.minimum_linkrate = min;
+
+ sas_phy->phy->maximum_linkrate = max;
+ sas_phy->phy->minimum_linkrate = min;
+
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+ msleep(100);
+ hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, &_r);
+ hisi_sas_phy_enable(hisi_hba, phy_no, 1);
+
+ return 0;
+}
+
+static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func,
+ void *funcdata)
+{
+ struct sas_ha_struct *sas_ha = sas_phy->ha;
+ struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
+ int phy_no = sas_phy->id;
+
+ switch (func) {
+ case PHY_FUNC_HARD_RESET:
+ hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no);
+ break;
+
+ case PHY_FUNC_LINK_RESET:
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+ msleep(100);
+ hisi_sas_phy_enable(hisi_hba, phy_no, 1);
+ break;
+
+ case PHY_FUNC_DISABLE:
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+ break;
+
+ case PHY_FUNC_SET_LINK_RATE:
+ return hisi_sas_phy_set_linkrate(hisi_hba, phy_no, funcdata);
+ case PHY_FUNC_GET_EVENTS:
+ if (hisi_hba->hw->get_events) {
+ hisi_hba->hw->get_events(hisi_hba, phy_no);
+ break;
+ }
+ fallthrough;
+ case PHY_FUNC_RELEASE_SPINUP_HOLD:
+ default:
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static void hisi_sas_task_done(struct sas_task *task)
+{
+ del_timer(&task->slow_task->timer);
+ complete(&task->slow_task->completion);
+}
+
+static void hisi_sas_tmf_timedout(struct timer_list *t)
+{
+ struct sas_task_slow *slow = from_timer(slow, t, timer);
+ struct sas_task *task = slow->task;
+ unsigned long flags;
+ bool is_completed = true;
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+ task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+ is_completed = false;
+ }
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+ if (!is_completed)
+ complete(&task->slow_task->completion);
+}
+
+#define TASK_TIMEOUT 20
+#define TASK_RETRY 3
+#define INTERNAL_ABORT_TIMEOUT 6
+static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
+ void *parameter, u32 para_len,
+ struct hisi_sas_tmf_task *tmf)
+{
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
+ struct device *dev = hisi_hba->dev;
+ struct sas_task *task;
+ int res, retry;
+
+ for (retry = 0; retry < TASK_RETRY; retry++) {
+ task = sas_alloc_slow_task(GFP_KERNEL);
+ if (!task)
+ return -ENOMEM;
+
+ task->dev = device;
+ task->task_proto = device->tproto;
+
+ if (dev_is_sata(device)) {
+ task->ata_task.device_control_reg_update = 1;
+ memcpy(&task->ata_task.fis, parameter, para_len);
+ } else {
+ memcpy(&task->ssp_task, parameter, para_len);
+ }
+ task->task_done = hisi_sas_task_done;
+
+ task->slow_task->timer.function = hisi_sas_tmf_timedout;
+ task->slow_task->timer.expires = jiffies + TASK_TIMEOUT * HZ;
+ add_timer(&task->slow_task->timer);
+
+ res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf);
+
+ if (res) {
+ del_timer(&task->slow_task->timer);
+ dev_err(dev, "abort tmf: executing internal task failed: %d\n",
+ res);
+ goto ex_err;
+ }
+
+ wait_for_completion(&task->slow_task->completion);
+ res = TMF_RESP_FUNC_FAILED;
+ /* Even TMF timed out, return direct. */
+ if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
+ if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+ struct hisi_sas_slot *slot = task->lldd_task;
+
+ dev_err(dev, "abort tmf: TMF task timeout and not done\n");
+ if (slot) {
+ struct hisi_sas_cq *cq =
+ &hisi_hba->cq[slot->dlvry_queue];
+ /*
+ * sync irq to avoid free'ing task
+ * before using task in IO completion
+ */
+ synchronize_irq(cq->irq_no);
+ slot->task = NULL;
+ }
+
+ goto ex_err;
+ } else
+ dev_err(dev, "abort tmf: TMF task timeout\n");
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_COMPLETE) {
+ res = TMF_RESP_FUNC_COMPLETE;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_SUCC) {
+ res = TMF_RESP_FUNC_SUCC;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == SAS_DATA_UNDERRUN) {
+ /* no error, but return the number of bytes of
+ * underrun
+ */
+ dev_warn(dev, "abort tmf: task to dev %016llx resp: 0x%x sts 0x%x underrun\n",
+ SAS_ADDR(device->sas_addr),
+ task->task_status.resp,
+ task->task_status.stat);
+ res = task->task_status.residual;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == SAS_DATA_OVERRUN) {
+ dev_warn(dev, "abort tmf: blocked task error\n");
+ res = -EMSGSIZE;
+ break;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == SAS_OPEN_REJECT) {
+ dev_warn(dev, "abort tmf: open reject failed\n");
+ res = -EIO;
+ } else {
+ dev_warn(dev, "abort tmf: task to dev %016llx resp: 0x%x status 0x%x\n",
+ SAS_ADDR(device->sas_addr),
+ task->task_status.resp,
+ task->task_status.stat);
+ }
+ sas_free_task(task);
+ task = NULL;
+ }
+ex_err:
+ if (retry == TASK_RETRY)
+ dev_warn(dev, "abort tmf: executing internal task failed!\n");
+ sas_free_task(task);
+ return res;
+}
+
+static void hisi_sas_fill_ata_reset_cmd(struct ata_device *dev,
+ bool reset, int pmp, u8 *fis)
+{
+ struct ata_taskfile tf;
+
+ ata_tf_init(dev, &tf);
+ if (reset)
+ tf.ctl |= ATA_SRST;
+ else
+ tf.ctl &= ~ATA_SRST;
+ tf.command = ATA_CMD_DEV_RESET;
+ ata_tf_to_fis(&tf, pmp, 0, fis);
+}
+
+static int hisi_sas_softreset_ata_disk(struct domain_device *device)
+{
+ u8 fis[20] = {0};
+ struct ata_port *ap = device->sata_dev.ap;
+ struct ata_link *link;
+ int rc = TMF_RESP_FUNC_FAILED;
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct device *dev = hisi_hba->dev;
+ int s = sizeof(struct host_to_dev_fis);
+
+ ata_for_each_link(link, ap, EDGE) {
+ int pmp = sata_srst_pmp(link);
+
+ hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis);
+ rc = hisi_sas_exec_internal_tmf_task(device, fis, s, NULL);
+ if (rc != TMF_RESP_FUNC_COMPLETE)
+ break;
+ }
+
+ if (rc == TMF_RESP_FUNC_COMPLETE) {
+ ata_for_each_link(link, ap, EDGE) {
+ int pmp = sata_srst_pmp(link);
+
+ hisi_sas_fill_ata_reset_cmd(link->device, 0, pmp, fis);
+ rc = hisi_sas_exec_internal_tmf_task(device, fis,
+ s, NULL);
+ if (rc != TMF_RESP_FUNC_COMPLETE)
+ dev_err(dev, "ata disk de-reset failed\n");
+ }
+ } else {
+ dev_err(dev, "ata disk reset failed\n");
+ }
+
+ if (rc == TMF_RESP_FUNC_COMPLETE)
+ hisi_sas_release_task(hisi_hba, device);
+
+ return rc;
+}
+
+static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
+ u8 *lun, struct hisi_sas_tmf_task *tmf)
+{
+ struct sas_ssp_task ssp_task;
+
+ if (!(device->tproto & SAS_PROTOCOL_SSP))
+ return TMF_RESP_FUNC_ESUPP;
+
+ memcpy(ssp_task.LUN, lun, 8);
+
+ return hisi_sas_exec_internal_tmf_task(device, &ssp_task,
+ sizeof(ssp_task), tmf);
+}
+
+static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba)
+{
+ u32 state = hisi_hba->hw->get_phys_state(hisi_hba);
+ int i;
+
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ struct hisi_sas_device *sas_dev = &hisi_hba->devices[i];
+ struct domain_device *device = sas_dev->sas_device;
+ struct asd_sas_port *sas_port;
+ struct hisi_sas_port *port;
+ struct hisi_sas_phy *phy = NULL;
+ struct asd_sas_phy *sas_phy;
+
+ if ((sas_dev->dev_type == SAS_PHY_UNUSED)
+ || !device || !device->port)
+ continue;
+
+ sas_port = device->port;
+ port = to_hisi_sas_port(sas_port);
+
+ list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el)
+ if (state & BIT(sas_phy->id)) {
+ phy = sas_phy->lldd_phy;
+ break;
+ }
+
+ if (phy) {
+ port->id = phy->port_id;
+
+ /* Update linkrate of directly attached device. */
+ if (!device->parent)
+ device->linkrate = phy->sas_phy.linkrate;
+
+ hisi_hba->hw->setup_itct(hisi_hba, sas_dev);
+ } else if (!port->port_attached)
+ port->id = 0xff;
+ }
+}
+
+static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 state)
+{
+ struct asd_sas_port *_sas_port = NULL;
+ int phy_no;
+
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct asd_sas_port *sas_port = sas_phy->port;
+ bool do_port_check = _sas_port != sas_port;
+
+ if (!sas_phy->phy->enabled)
+ continue;
+
+ /* Report PHY state change to libsas */
+ if (state & BIT(phy_no)) {
+ if (do_port_check && sas_port && sas_port->port_dev) {
+ struct domain_device *dev = sas_port->port_dev;
+
+ _sas_port = sas_port;
+
+ if (dev_is_expander(dev->dev_type))
+ sas_notify_port_event(sas_phy,
+ PORTE_BROADCAST_RCVD);
+ }
+ } else {
+ hisi_sas_phy_down(hisi_hba, phy_no, 0);
+ }
+ }
+}
+
+static void hisi_sas_reset_init_all_devices(struct hisi_hba *hisi_hba)
+{
+ struct hisi_sas_device *sas_dev;
+ struct domain_device *device;
+ int i;
+
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ sas_dev = &hisi_hba->devices[i];
+ device = sas_dev->sas_device;
+
+ if ((sas_dev->dev_type == SAS_PHY_UNUSED) || !device)
+ continue;
+
+ hisi_sas_init_device(device);
+ }
+}
+
+static void hisi_sas_send_ata_reset_each_phy(struct hisi_hba *hisi_hba,
+ struct asd_sas_port *sas_port,
+ struct domain_device *device)
+{
+ struct hisi_sas_tmf_task tmf_task = { .force_phy = 1 };
+ struct ata_port *ap = device->sata_dev.ap;
+ struct device *dev = hisi_hba->dev;
+ int s = sizeof(struct host_to_dev_fis);
+ int rc = TMF_RESP_FUNC_FAILED;
+ struct asd_sas_phy *sas_phy;
+ struct ata_link *link;
+ u8 fis[20] = {0};
+ u32 state;
+
+ state = hisi_hba->hw->get_phys_state(hisi_hba);
+ list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el) {
+ if (!(state & BIT(sas_phy->id)))
+ continue;
+
+ ata_for_each_link(link, ap, EDGE) {
+ int pmp = sata_srst_pmp(link);
+
+ tmf_task.phy_id = sas_phy->id;
+ hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis);
+ rc = hisi_sas_exec_internal_tmf_task(device, fis, s,
+ &tmf_task);
+ if (rc != TMF_RESP_FUNC_COMPLETE) {
+ dev_err(dev, "phy%d ata reset failed rc=%d\n",
+ sas_phy->id, rc);
+ break;
+ }
+ }
+ }
+}
+
+static void hisi_sas_terminate_stp_reject(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int port_no, rc, i;
+
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ struct hisi_sas_device *sas_dev = &hisi_hba->devices[i];
+ struct domain_device *device = sas_dev->sas_device;
+
+ if ((sas_dev->dev_type == SAS_PHY_UNUSED) || !device)
+ continue;
+
+ rc = hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV, 0);
+ if (rc < 0)
+ dev_err(dev, "STP reject: abort dev failed %d\n", rc);
+ }
+
+ for (port_no = 0; port_no < hisi_hba->n_phy; port_no++) {
+ struct hisi_sas_port *port = &hisi_hba->port[port_no];
+ struct asd_sas_port *sas_port = &port->sas_port;
+ struct domain_device *port_dev = sas_port->port_dev;
+ struct domain_device *device;
+
+ if (!port_dev || !dev_is_expander(port_dev->dev_type))
+ continue;
+
+ /* Try to find a SATA device */
+ list_for_each_entry(device, &sas_port->dev_list,
+ dev_list_node) {
+ if (dev_is_sata(device)) {
+ hisi_sas_send_ata_reset_each_phy(hisi_hba,
+ sas_port,
+ device);
+ break;
+ }
+ }
+ }
+}
+
+void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba)
+{
+ struct Scsi_Host *shost = hisi_hba->shost;
+
+ down(&hisi_hba->sem);
+ hisi_hba->phy_state = hisi_hba->hw->get_phys_state(hisi_hba);
+
+ scsi_block_requests(shost);
+ hisi_hba->hw->wait_cmds_complete_timeout(hisi_hba, 100, 5000);
+
+ if (timer_pending(&hisi_hba->timer))
+ del_timer_sync(&hisi_hba->timer);
+
+ set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_controller_reset_prepare);
+
+void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba)
+{
+ struct Scsi_Host *shost = hisi_hba->shost;
+
+ /* Init and wait for PHYs to come up and all libsas event finished. */
+ hisi_hba->hw->phys_init(hisi_hba);
+ msleep(1000);
+ hisi_sas_refresh_port_id(hisi_hba);
+ clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+
+ if (hisi_hba->reject_stp_links_msk)
+ hisi_sas_terminate_stp_reject(hisi_hba);
+ hisi_sas_reset_init_all_devices(hisi_hba);
+ up(&hisi_hba->sem);
+ scsi_unblock_requests(shost);
+ clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+
+ hisi_sas_rescan_topology(hisi_hba, hisi_hba->phy_state);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_controller_reset_done);
+
+static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ struct Scsi_Host *shost = hisi_hba->shost;
+ int rc;
+
+ if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct[0].itct)
+ queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
+
+ if (!hisi_hba->hw->soft_reset)
+ return -ENOENT;
+
+ if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
+ return -EPERM;
+
+ dev_info(dev, "controller resetting...\n");
+ hisi_sas_controller_reset_prepare(hisi_hba);
+
+ rc = hisi_hba->hw->soft_reset(hisi_hba);
+ if (rc) {
+ dev_warn(dev, "controller reset failed (%d)\n", rc);
+ clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+ up(&hisi_hba->sem);
+ scsi_unblock_requests(shost);
+ clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+ return rc;
+ }
+
+ hisi_sas_controller_reset_done(hisi_hba);
+ dev_info(dev, "controller reset complete\n");
+
+ return 0;
+}
+
+static int hisi_sas_abort_task(struct sas_task *task)
+{
+ struct scsi_lun lun;
+ struct hisi_sas_tmf_task tmf_task;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_hba *hisi_hba;
+ struct device *dev;
+ int rc = TMF_RESP_FUNC_FAILED;
+ unsigned long flags;
+
+ if (!sas_dev)
+ return TMF_RESP_FUNC_FAILED;
+
+ hisi_hba = dev_to_hisi_hba(task->dev);
+ dev = hisi_hba->dev;
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (task->task_state_flags & SAS_TASK_STATE_DONE) {
+ struct hisi_sas_slot *slot = task->lldd_task;
+ struct hisi_sas_cq *cq;
+
+ if (slot) {
+ /*
+ * sync irq to avoid free'ing task
+ * before using task in IO completion
+ */
+ cq = &hisi_hba->cq[slot->dlvry_queue];
+ synchronize_irq(cq->irq_no);
+ }
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ rc = TMF_RESP_FUNC_COMPLETE;
+ goto out;
+ }
+ task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+ if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
+ struct scsi_cmnd *cmnd = task->uldd_task;
+ struct hisi_sas_slot *slot = task->lldd_task;
+ u16 tag = slot->idx;
+ int rc2;
+
+ int_to_scsilun(cmnd->device->lun, &lun);
+ tmf_task.tmf = TMF_ABORT_TASK;
+ tmf_task.tag_of_task_to_be_managed = tag;
+
+ rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun,
+ &tmf_task);
+
+ rc2 = hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_CMD, tag);
+ if (rc2 < 0) {
+ dev_err(dev, "abort task: internal abort (%d)\n", rc2);
+ return TMF_RESP_FUNC_FAILED;
+ }
+
+ /*
+ * If the TMF finds that the IO is not in the device and also
+ * the internal abort does not succeed, then it is safe to
+ * free the slot.
+ * Note: if the internal abort succeeds then the slot
+ * will have already been completed
+ */
+ if (rc == TMF_RESP_FUNC_COMPLETE && rc2 != TMF_RESP_FUNC_SUCC) {
+ if (task->lldd_task)
+ hisi_sas_do_release_task(hisi_hba, task, slot);
+ }
+ } else if (task->task_proto & SAS_PROTOCOL_SATA ||
+ task->task_proto & SAS_PROTOCOL_STP) {
+ if (task->dev->dev_type == SAS_SATA_DEV) {
+ rc = hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV,
+ 0);
+ if (rc < 0) {
+ dev_err(dev, "abort task: internal abort failed\n");
+ goto out;
+ }
+ hisi_sas_dereg_device(hisi_hba, device);
+ rc = hisi_sas_softreset_ata_disk(device);
+ }
+ } else if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SMP) {
+ /* SMP */
+ struct hisi_sas_slot *slot = task->lldd_task;
+ u32 tag = slot->idx;
+ struct hisi_sas_cq *cq = &hisi_hba->cq[slot->dlvry_queue];
+
+ rc = hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_CMD, tag);
+ if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) &&
+ task->lldd_task) {
+ /*
+ * sync irq to avoid free'ing task
+ * before using task in IO completion
+ */
+ synchronize_irq(cq->irq_no);
+ slot->task = NULL;
+ }
+ }
+
+out:
+ if (rc != TMF_RESP_FUNC_COMPLETE)
+ dev_notice(dev, "abort task: rc=%d\n", rc);
+ return rc;
+}
+
+static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
+{
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct device *dev = hisi_hba->dev;
+ struct hisi_sas_tmf_task tmf_task;
+ int rc;
+
+ rc = hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV, 0);
+ if (rc < 0) {
+ dev_err(dev, "abort task set: internal abort rc=%d\n", rc);
+ return TMF_RESP_FUNC_FAILED;
+ }
+ hisi_sas_dereg_device(hisi_hba, device);
+
+ tmf_task.tmf = TMF_ABORT_TASK_SET;
+ rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
+
+ if (rc == TMF_RESP_FUNC_COMPLETE)
+ hisi_sas_release_task(hisi_hba, device);
+
+ return rc;
+}
+
+static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun)
+{
+ struct hisi_sas_tmf_task tmf_task;
+ int rc;
+
+ tmf_task.tmf = TMF_CLEAR_ACA;
+ rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
+
+ return rc;
+}
+
+static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device)
+{
+ struct sas_phy *local_phy = sas_get_local_phy(device);
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct sas_ha_struct *sas_ha = &hisi_hba->sha;
+ DECLARE_COMPLETION_ONSTACK(phyreset);
+ int rc, reset_type;
+
+ if (!local_phy->enabled) {
+ sas_put_local_phy(local_phy);
+ return -ENODEV;
+ }
+
+ if (scsi_is_sas_phy_local(local_phy)) {
+ struct asd_sas_phy *sas_phy =
+ sas_ha->sas_phy[local_phy->number];
+ struct hisi_sas_phy *phy =
+ container_of(sas_phy, struct hisi_sas_phy, sas_phy);
+ phy->in_reset = 1;
+ phy->reset_completion = &phyreset;
+ }
+
+ reset_type = (sas_dev->dev_status == HISI_SAS_DEV_INIT ||
+ !dev_is_sata(device)) ? true : false;
+
+ rc = sas_phy_reset(local_phy, reset_type);
+ sas_put_local_phy(local_phy);
+
+ if (scsi_is_sas_phy_local(local_phy)) {
+ struct asd_sas_phy *sas_phy =
+ sas_ha->sas_phy[local_phy->number];
+ struct hisi_sas_phy *phy =
+ container_of(sas_phy, struct hisi_sas_phy, sas_phy);
+ int ret = wait_for_completion_timeout(&phyreset, 2 * HZ);
+ unsigned long flags;
+
+ spin_lock_irqsave(&phy->lock, flags);
+ phy->reset_completion = NULL;
+ phy->in_reset = 0;
+ spin_unlock_irqrestore(&phy->lock, flags);
+
+ /* report PHY down if timed out */
+ if (!ret)
+ hisi_sas_phy_down(hisi_hba, sas_phy->id, 0);
+ } else if (sas_dev->dev_status != HISI_SAS_DEV_INIT) {
+ /*
+ * If in init state, we rely on caller to wait for link to be
+ * ready; otherwise, except phy reset is fail, delay.
+ */
+ if (!rc)
+ msleep(2000);
+ }
+
+ return rc;
+}
+
+static int hisi_sas_I_T_nexus_reset(struct domain_device *device)
+{
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ rc = hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV, 0);
+ if (rc < 0) {
+ dev_err(dev, "I_T nexus reset: internal abort (%d)\n", rc);
+ return TMF_RESP_FUNC_FAILED;
+ }
+ hisi_sas_dereg_device(hisi_hba, device);
+
+ if (dev_is_sata(device)) {
+ rc = hisi_sas_softreset_ata_disk(device);
+ if (rc == TMF_RESP_FUNC_FAILED)
+ return TMF_RESP_FUNC_FAILED;
+ }
+
+ rc = hisi_sas_debug_I_T_nexus_reset(device);
+
+ if ((rc == TMF_RESP_FUNC_COMPLETE) || (rc == -ENODEV))
+ hisi_sas_release_task(hisi_hba, device);
+
+ return rc;
+}
+
+static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
+{
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+ struct device *dev = hisi_hba->dev;
+ int rc = TMF_RESP_FUNC_FAILED;
+
+ /* Clear internal IO and then lu reset */
+ rc = hisi_sas_internal_task_abort(hisi_hba, device,
+ HISI_SAS_INT_ABT_DEV, 0);
+ if (rc < 0) {
+ dev_err(dev, "lu_reset: internal abort failed\n");
+ goto out;
+ }
+ hisi_sas_dereg_device(hisi_hba, device);
+
+ if (dev_is_sata(device)) {
+ struct sas_phy *phy;
+
+ phy = sas_get_local_phy(device);
+
+ rc = sas_phy_reset(phy, true);
+
+ if (rc == 0)
+ hisi_sas_release_task(hisi_hba, device);
+ sas_put_local_phy(phy);
+ } else {
+ struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET };
+
+ rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
+ if (rc == TMF_RESP_FUNC_COMPLETE)
+ hisi_sas_release_task(hisi_hba, device);
+ }
+out:
+ if (rc != TMF_RESP_FUNC_COMPLETE)
+ dev_err(dev, "lu_reset: for device[%d]:rc= %d\n",
+ sas_dev->device_id, rc);
+ return rc;
+}
+
+static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
+{
+ struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
+ struct device *dev = hisi_hba->dev;
+ HISI_SAS_DECLARE_RST_WORK_ON_STACK(r);
+ int rc, i;
+
+ queue_work(hisi_hba->wq, &r.work);
+ wait_for_completion(r.completion);
+ if (!r.done)
+ return TMF_RESP_FUNC_FAILED;
+
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ struct hisi_sas_device *sas_dev = &hisi_hba->devices[i];
+ struct domain_device *device = sas_dev->sas_device;
+
+ if ((sas_dev->dev_type == SAS_PHY_UNUSED) || !device ||
+ dev_is_expander(device->dev_type))
+ continue;
+
+ rc = hisi_sas_debug_I_T_nexus_reset(device);
+ if (rc != TMF_RESP_FUNC_COMPLETE)
+ dev_info(dev, "clear nexus ha: for device[%d] rc=%d\n",
+ sas_dev->device_id, rc);
+ }
+
+ hisi_sas_release_tasks(hisi_hba);
+
+ return TMF_RESP_FUNC_COMPLETE;
+}
+
+static int hisi_sas_query_task(struct sas_task *task)
+{
+ struct scsi_lun lun;
+ struct hisi_sas_tmf_task tmf_task;
+ int rc = TMF_RESP_FUNC_FAILED;
+
+ if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
+ struct scsi_cmnd *cmnd = task->uldd_task;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_slot *slot = task->lldd_task;
+ u32 tag = slot->idx;
+
+ int_to_scsilun(cmnd->device->lun, &lun);
+ tmf_task.tmf = TMF_QUERY_TASK;
+ tmf_task.tag_of_task_to_be_managed = tag;
+
+ rc = hisi_sas_debug_issue_ssp_tmf(device,
+ lun.scsi_lun,
+ &tmf_task);
+ switch (rc) {
+ /* The task is still in Lun, release it then */
+ case TMF_RESP_FUNC_SUCC:
+ /* The task is not in Lun or failed, reset the phy */
+ case TMF_RESP_FUNC_FAILED:
+ case TMF_RESP_FUNC_COMPLETE:
+ break;
+ default:
+ rc = TMF_RESP_FUNC_FAILED;
+ break;
+ }
+ }
+ return rc;
+}
+
+static int
+hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id,
+ struct sas_task *task, int abort_flag,
+ int task_tag, struct hisi_sas_dq *dq)
+{
+ struct domain_device *device = task->dev;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct device *dev = hisi_hba->dev;
+ struct hisi_sas_port *port;
+ struct hisi_sas_slot *slot;
+ struct asd_sas_port *sas_port = device->port;
+ struct hisi_sas_cmd_hdr *cmd_hdr_base;
+ int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx;
+ unsigned long flags;
+ int wr_q_index;
+
+ if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags)))
+ return -EINVAL;
+
+ if (!device->port)
+ return -1;
+
+ port = to_hisi_sas_port(sas_port);
+
+ /* simply get a slot and send abort command */
+ rc = hisi_sas_slot_index_alloc(hisi_hba, NULL);
+ if (rc < 0)
+ goto err_out;
+
+ slot_idx = rc;
+ slot = &hisi_hba->slot_info[slot_idx];
+
+ spin_lock(&dq->lock);
+ wr_q_index = dq->wr_point;
+ dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS;
+ list_add_tail(&slot->delivery, &dq->list);
+ spin_unlock(&dq->lock);
+ spin_lock(&sas_dev->lock);
+ list_add_tail(&slot->entry, &sas_dev->list);
+ spin_unlock(&sas_dev->lock);
+
+ dlvry_queue = dq->id;
+ dlvry_queue_slot = wr_q_index;
+
+ slot->device_id = sas_dev->device_id;
+ slot->n_elem = n_elem;
+ slot->dlvry_queue = dlvry_queue;
+ slot->dlvry_queue_slot = dlvry_queue_slot;
+ cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue];
+ slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot];
+ slot->task = task;
+ slot->port = port;
+ slot->is_internal = true;
+ task->lldd_task = slot;
+
+ memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr));
+ memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ);
+ memset(hisi_sas_status_buf_addr_mem(slot), 0,
+ sizeof(struct hisi_sas_err_record));
+
+ hisi_sas_task_prep_abort(hisi_hba, slot, device_id,
+ abort_flag, task_tag);
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ task->task_state_flags |= SAS_TASK_AT_INITIATOR;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ WRITE_ONCE(slot->ready, 1);
+ /* send abort command to the chip */
+ spin_lock(&dq->lock);
+ hisi_hba->hw->start_delivery(dq);
+ spin_unlock(&dq->lock);
+
+ return 0;
+
+err_out:
+ dev_err(dev, "internal abort task prep: failed[%d]!\n", rc);
+
+ return rc;
+}
+
+/**
+ * _hisi_sas_internal_task_abort -- execute an internal
+ * abort command for single IO command or a device
+ * @hisi_hba: host controller struct
+ * @device: domain device
+ * @abort_flag: mode of operation, device or single IO
+ * @tag: tag of IO to be aborted (only relevant to single
+ * IO mode)
+ * @dq: delivery queue for this internal abort command
+ */
+static int
+_hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
+ struct domain_device *device, int abort_flag,
+ int tag, struct hisi_sas_dq *dq)
+{
+ struct sas_task *task;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct device *dev = hisi_hba->dev;
+ int res;
+
+ /*
+ * The interface is not realized means this HW don't support internal
+ * abort, or don't need to do internal abort. Then here, we return
+ * TMF_RESP_FUNC_FAILED and let other steps go on, which depends that
+ * the internal abort has been executed and returned CQ.
+ */
+ if (!hisi_hba->hw->prep_abort)
+ return TMF_RESP_FUNC_FAILED;
+
+ task = sas_alloc_slow_task(GFP_KERNEL);
+ if (!task)
+ return -ENOMEM;
+
+ task->dev = device;
+ task->task_proto = device->tproto;
+ task->task_done = hisi_sas_task_done;
+ task->slow_task->timer.function = hisi_sas_tmf_timedout;
+ task->slow_task->timer.expires = jiffies + INTERNAL_ABORT_TIMEOUT * HZ;
+ add_timer(&task->slow_task->timer);
+
+ res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id,
+ task, abort_flag, tag, dq);
+ if (res) {
+ del_timer(&task->slow_task->timer);
+ dev_err(dev, "internal task abort: executing internal task failed: %d\n",
+ res);
+ goto exit;
+ }
+ wait_for_completion(&task->slow_task->completion);
+ res = TMF_RESP_FUNC_FAILED;
+
+ /* Internal abort timed out */
+ if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
+ if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct[0].itct)
+ queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
+
+ if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+ struct hisi_sas_slot *slot = task->lldd_task;
+
+ if (slot) {
+ struct hisi_sas_cq *cq =
+ &hisi_hba->cq[slot->dlvry_queue];
+ /*
+ * sync irq to avoid free'ing task
+ * before using task in IO completion
+ */
+ synchronize_irq(cq->irq_no);
+ slot->task = NULL;
+ }
+ dev_err(dev, "internal task abort: timeout and not done.\n");
+
+ res = -EIO;
+ goto exit;
+ } else
+ dev_err(dev, "internal task abort: timeout.\n");
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_COMPLETE) {
+ res = TMF_RESP_FUNC_COMPLETE;
+ goto exit;
+ }
+
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == TMF_RESP_FUNC_SUCC) {
+ res = TMF_RESP_FUNC_SUCC;
+ goto exit;
+ }
+
+exit:
+ dev_dbg(dev, "internal task abort: task to dev %016llx task=%pK resp: 0x%x sts 0x%x\n",
+ SAS_ADDR(device->sas_addr), task,
+ task->task_status.resp, /* 0 is complete, -1 is undelivered */
+ task->task_status.stat);
+ sas_free_task(task);
+
+ return res;
+}
+
+static int
+hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
+ struct domain_device *device,
+ int abort_flag, int tag)
+{
+ struct hisi_sas_slot *slot;
+ struct device *dev = hisi_hba->dev;
+ struct hisi_sas_dq *dq;
+ int i, rc;
+
+ switch (abort_flag) {
+ case HISI_SAS_INT_ABT_CMD:
+ slot = &hisi_hba->slot_info[tag];
+ dq = &hisi_hba->dq[slot->dlvry_queue];
+ return _hisi_sas_internal_task_abort(hisi_hba, device,
+ abort_flag, tag, dq);
+ case HISI_SAS_INT_ABT_DEV:
+ for (i = 0; i < hisi_hba->cq_nvecs; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ const struct cpumask *mask = cq->irq_mask;
+
+ if (mask && !cpumask_intersects(cpu_online_mask, mask))
+ continue;
+ dq = &hisi_hba->dq[i];
+ rc = _hisi_sas_internal_task_abort(hisi_hba, device,
+ abort_flag, tag,
+ dq);
+ if (rc)
+ return rc;
+ }
+ break;
+ default:
+ dev_err(dev, "Unrecognised internal abort flag (%d)\n",
+ abort_flag);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy)
+{
+ hisi_sas_port_notify_formed(sas_phy);
+}
+
+static int hisi_sas_write_gpio(struct sas_ha_struct *sha, u8 reg_type,
+ u8 reg_index, u8 reg_count, u8 *write_data)
+{
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+
+ if (!hisi_hba->hw->write_gpio)
+ return -EOPNOTSUPP;
+
+ return hisi_hba->hw->write_gpio(hisi_hba, reg_type,
+ reg_index, reg_count, write_data);
+}
+
+static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy)
+{
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct sas_phy *sphy = sas_phy->phy;
+ unsigned long flags;
+
+ phy->phy_attached = 0;
+ phy->phy_type = 0;
+ phy->port = NULL;
+
+ spin_lock_irqsave(&phy->lock, flags);
+ if (phy->enable)
+ sphy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
+ else
+ sphy->negotiated_linkrate = SAS_PHY_DISABLED;
+ spin_unlock_irqrestore(&phy->lock, flags);
+}
+
+void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct device *dev = hisi_hba->dev;
+
+ if (rdy) {
+ /* Phy down but ready */
+ hisi_sas_bytes_dmaed(hisi_hba, phy_no);
+ hisi_sas_port_notify_formed(sas_phy);
+ } else {
+ struct hisi_sas_port *port = phy->port;
+
+ if (test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags) ||
+ phy->in_reset) {
+ dev_info(dev, "ignore flutter phy%d down\n", phy_no);
+ return;
+ }
+ /* Phy down and not ready */
+ sas_notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL);
+ sas_phy_disconnected(sas_phy);
+
+ if (port) {
+ if (phy->phy_type & PORT_TYPE_SAS) {
+ int port_id = port->id;
+
+ if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba,
+ port_id))
+ port->port_attached = 0;
+ } else if (phy->phy_type & PORT_TYPE_SATA)
+ port->port_attached = 0;
+ }
+ hisi_sas_phy_disconnected(phy);
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_sas_phy_down);
+
+void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ for (i = 0; i < hisi_hba->cq_nvecs; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+
+ synchronize_irq(cq->irq_no);
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_sas_sync_irqs);
+
+int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type)
+{
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+
+ if (reset_type != SCSI_ADAPTER_RESET)
+ return -EOPNOTSUPP;
+
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_host_reset);
+
+struct scsi_transport_template *hisi_sas_stt;
+EXPORT_SYMBOL_GPL(hisi_sas_stt);
+
+static struct sas_domain_function_template hisi_sas_transport_ops = {
+ .lldd_dev_found = hisi_sas_dev_found,
+ .lldd_dev_gone = hisi_sas_dev_gone,
+ .lldd_execute_task = hisi_sas_queue_command,
+ .lldd_control_phy = hisi_sas_control_phy,
+ .lldd_abort_task = hisi_sas_abort_task,
+ .lldd_abort_task_set = hisi_sas_abort_task_set,
+ .lldd_clear_aca = hisi_sas_clear_aca,
+ .lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset,
+ .lldd_lu_reset = hisi_sas_lu_reset,
+ .lldd_query_task = hisi_sas_query_task,
+ .lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha,
+ .lldd_port_formed = hisi_sas_port_formed,
+ .lldd_write_gpio = hisi_sas_write_gpio,
+};
+
+void hisi_sas_init_mem(struct hisi_hba *hisi_hba)
+{
+ int i, s, j, max_command_entries = HISI_SAS_MAX_COMMANDS;
+ struct hisi_sas_breakpoint *sata_breakpoint = hisi_hba->sata_breakpoint;
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ struct hisi_sas_dq *dq = &hisi_hba->dq[i];
+ struct hisi_sas_cmd_hdr *cmd_hdr = hisi_hba->cmd_hdr[i];
+
+ s = sizeof(struct hisi_sas_cmd_hdr);
+ for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++)
+ memset(&cmd_hdr[j], 0, s);
+
+ dq->wr_point = 0;
+
+ s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
+ memset(hisi_hba->complete_hdr[i], 0, s);
+ cq->rd_point = 0;
+ }
+
+ s = sizeof(struct hisi_sas_initial_fis) * hisi_hba->n_phy;
+ memset(hisi_hba->initial_fis, 0, s);
+
+ s = max_command_entries * sizeof(struct hisi_sas_iost);
+ memset(hisi_hba->iost, 0, s);
+
+ s = max_command_entries * sizeof(struct hisi_sas_breakpoint);
+ memset(hisi_hba->breakpoint, 0, s);
+
+ s = sizeof(struct hisi_sas_sata_breakpoint);
+ for (j = 0; j < HISI_SAS_MAX_ITCT_ENTRIES; j++)
+ memset(&sata_breakpoint[j], 0, s);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_init_mem);
+
+int hisi_sas_alloc(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int i, j, s, max_command_entries = HISI_SAS_MAX_COMMANDS;
+ int max_command_entries_ru, sz_slot_buf_ru;
+ int blk_cnt, slots_per_blk;
+
+ sema_init(&hisi_hba->sem, 1);
+ spin_lock_init(&hisi_hba->lock);
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_init(hisi_hba, i);
+ hisi_hba->port[i].port_attached = 0;
+ hisi_hba->port[i].id = -1;
+ }
+
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED;
+ hisi_hba->devices[i].device_id = i;
+ hisi_hba->devices[i].dev_status = HISI_SAS_DEV_INIT;
+ }
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ struct hisi_sas_dq *dq = &hisi_hba->dq[i];
+
+ /* Completion queue structure */
+ cq->id = i;
+ cq->hisi_hba = hisi_hba;
+
+ /* Delivery queue structure */
+ spin_lock_init(&dq->lock);
+ INIT_LIST_HEAD(&dq->list);
+ dq->id = i;
+ dq->hisi_hba = hisi_hba;
+
+ /* Delivery queue */
+ s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
+ hisi_hba->cmd_hdr[i] = dmam_alloc_coherent(dev, s,
+ &hisi_hba->cmd_hdr_dma[i],
+ GFP_KERNEL);
+ if (!hisi_hba->cmd_hdr[i])
+ goto err_out;
+
+ /* Completion queue */
+ s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
+ hisi_hba->complete_hdr[i] = dmam_alloc_coherent(dev, s,
+ &hisi_hba->complete_hdr_dma[i],
+ GFP_KERNEL);
+ if (!hisi_hba->complete_hdr[i])
+ goto err_out;
+ }
+
+ s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
+ hisi_hba->itct = dmam_alloc_coherent(dev, s, &hisi_hba->itct_dma,
+ GFP_KERNEL);
+ if (!hisi_hba->itct)
+ goto err_out;
+
+ hisi_hba->slot_info = devm_kcalloc(dev, max_command_entries,
+ sizeof(struct hisi_sas_slot),
+ GFP_KERNEL);
+ if (!hisi_hba->slot_info)
+ goto err_out;
+
+ /* roundup to avoid overly large block size */
+ max_command_entries_ru = roundup(max_command_entries, 64);
+ if (hisi_hba->prot_mask & HISI_SAS_DIX_PROT_MASK)
+ sz_slot_buf_ru = sizeof(struct hisi_sas_slot_dif_buf_table);
+ else
+ sz_slot_buf_ru = sizeof(struct hisi_sas_slot_buf_table);
+ sz_slot_buf_ru = roundup(sz_slot_buf_ru, 64);
+ s = max(lcm(max_command_entries_ru, sz_slot_buf_ru), PAGE_SIZE);
+ blk_cnt = (max_command_entries_ru * sz_slot_buf_ru) / s;
+ slots_per_blk = s / sz_slot_buf_ru;
+
+ for (i = 0; i < blk_cnt; i++) {
+ int slot_index = i * slots_per_blk;
+ dma_addr_t buf_dma;
+ void *buf;
+
+ buf = dmam_alloc_coherent(dev, s, &buf_dma,
+ GFP_KERNEL);
+ if (!buf)
+ goto err_out;
+
+ for (j = 0; j < slots_per_blk; j++, slot_index++) {
+ struct hisi_sas_slot *slot;
+
+ slot = &hisi_hba->slot_info[slot_index];
+ slot->buf = buf;
+ slot->buf_dma = buf_dma;
+ slot->idx = slot_index;
+
+ buf += sz_slot_buf_ru;
+ buf_dma += sz_slot_buf_ru;
+ }
+ }
+
+ s = max_command_entries * sizeof(struct hisi_sas_iost);
+ hisi_hba->iost = dmam_alloc_coherent(dev, s, &hisi_hba->iost_dma,
+ GFP_KERNEL);
+ if (!hisi_hba->iost)
+ goto err_out;
+
+ s = max_command_entries * sizeof(struct hisi_sas_breakpoint);
+ hisi_hba->breakpoint = dmam_alloc_coherent(dev, s,
+ &hisi_hba->breakpoint_dma,
+ GFP_KERNEL);
+ if (!hisi_hba->breakpoint)
+ goto err_out;
+
+ hisi_hba->slot_index_count = max_command_entries;
+ s = hisi_hba->slot_index_count / BITS_PER_BYTE;
+ hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL);
+ if (!hisi_hba->slot_index_tags)
+ goto err_out;
+
+ s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS;
+ hisi_hba->initial_fis = dmam_alloc_coherent(dev, s,
+ &hisi_hba->initial_fis_dma,
+ GFP_KERNEL);
+ if (!hisi_hba->initial_fis)
+ goto err_out;
+
+ s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint);
+ hisi_hba->sata_breakpoint = dmam_alloc_coherent(dev, s,
+ &hisi_hba->sata_breakpoint_dma,
+ GFP_KERNEL);
+ if (!hisi_hba->sata_breakpoint)
+ goto err_out;
+
+ hisi_sas_slot_index_init(hisi_hba);
+ hisi_hba->last_slot_index = HISI_SAS_UNRESERVED_IPTT;
+
+ hisi_hba->wq = create_singlethread_workqueue(dev_name(dev));
+ if (!hisi_hba->wq) {
+ dev_err(dev, "sas_alloc: failed to create workqueue\n");
+ goto err_out;
+ }
+
+ return 0;
+err_out:
+ return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_alloc);
+
+void hisi_sas_free(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+
+ del_timer_sync(&phy->timer);
+ }
+
+ if (hisi_hba->wq)
+ destroy_workqueue(hisi_hba->wq);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_free);
+
+void hisi_sas_rst_work_handler(struct work_struct *work)
+{
+ struct hisi_hba *hisi_hba =
+ container_of(work, struct hisi_hba, rst_work);
+
+ hisi_sas_controller_reset(hisi_hba);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_rst_work_handler);
+
+void hisi_sas_sync_rst_work_handler(struct work_struct *work)
+{
+ struct hisi_sas_rst *rst =
+ container_of(work, struct hisi_sas_rst, work);
+
+ if (!hisi_sas_controller_reset(rst->hisi_hba))
+ rst->done = true;
+ complete(rst->completion);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_sync_rst_work_handler);
+
+int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ struct platform_device *pdev = hisi_hba->platform_dev;
+ struct device_node *np = pdev ? pdev->dev.of_node : NULL;
+ struct clk *refclk;
+
+ if (device_property_read_u8_array(dev, "sas-addr", hisi_hba->sas_addr,
+ SAS_ADDR_SIZE)) {
+ dev_err(dev, "could not get property sas-addr\n");
+ return -ENOENT;
+ }
+
+ if (np) {
+ /*
+ * These properties are only required for platform device-based
+ * controller with DT firmware.
+ */
+ hisi_hba->ctrl = syscon_regmap_lookup_by_phandle(np,
+ "hisilicon,sas-syscon");
+ if (IS_ERR(hisi_hba->ctrl)) {
+ dev_err(dev, "could not get syscon\n");
+ return -ENOENT;
+ }
+
+ if (device_property_read_u32(dev, "ctrl-reset-reg",
+ &hisi_hba->ctrl_reset_reg)) {
+ dev_err(dev, "could not get property ctrl-reset-reg\n");
+ return -ENOENT;
+ }
+
+ if (device_property_read_u32(dev, "ctrl-reset-sts-reg",
+ &hisi_hba->ctrl_reset_sts_reg)) {
+ dev_err(dev, "could not get property ctrl-reset-sts-reg\n");
+ return -ENOENT;
+ }
+
+ if (device_property_read_u32(dev, "ctrl-clock-ena-reg",
+ &hisi_hba->ctrl_clock_ena_reg)) {
+ dev_err(dev, "could not get property ctrl-clock-ena-reg\n");
+ return -ENOENT;
+ }
+ }
+
+ refclk = devm_clk_get(dev, NULL);
+ if (IS_ERR(refclk))
+ dev_dbg(dev, "no ref clk property\n");
+ else
+ hisi_hba->refclk_frequency_mhz = clk_get_rate(refclk) / 1000000;
+
+ if (device_property_read_u32(dev, "phy-count", &hisi_hba->n_phy)) {
+ dev_err(dev, "could not get property phy-count\n");
+ return -ENOENT;
+ }
+
+ if (device_property_read_u32(dev, "queue-count",
+ &hisi_hba->queue_count)) {
+ dev_err(dev, "could not get property queue-count\n");
+ return -ENOENT;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_get_fw_info);
+
+static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
+ const struct hisi_sas_hw *hw)
+{
+ struct resource *res;
+ struct Scsi_Host *shost;
+ struct hisi_hba *hisi_hba;
+ struct device *dev = &pdev->dev;
+ int error;
+
+ shost = scsi_host_alloc(hw->sht, sizeof(*hisi_hba));
+ if (!shost) {
+ dev_err(dev, "scsi host alloc failed\n");
+ return NULL;
+ }
+ hisi_hba = shost_priv(shost);
+
+ INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler);
+ hisi_hba->hw = hw;
+ hisi_hba->dev = dev;
+ hisi_hba->platform_dev = pdev;
+ hisi_hba->shost = shost;
+ SHOST_TO_SAS_HA(shost) = &hisi_hba->sha;
+
+ timer_setup(&hisi_hba->timer, NULL, 0);
+
+ if (hisi_sas_get_fw_info(hisi_hba) < 0)
+ goto err_out;
+
+ error = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+ if (error)
+ error = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+
+ if (error) {
+ dev_err(dev, "No usable DMA addressing method\n");
+ goto err_out;
+ }
+
+ hisi_hba->regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(hisi_hba->regs))
+ goto err_out;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (res) {
+ hisi_hba->sgpio_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(hisi_hba->sgpio_regs))
+ goto err_out;
+ }
+
+ if (hisi_sas_alloc(hisi_hba)) {
+ hisi_sas_free(hisi_hba);
+ goto err_out;
+ }
+
+ return shost;
+err_out:
+ scsi_host_put(shost);
+ dev_err(dev, "shost alloc failed\n");
+ return NULL;
+}
+
+int hisi_sas_probe(struct platform_device *pdev,
+ const struct hisi_sas_hw *hw)
+{
+ struct Scsi_Host *shost;
+ struct hisi_hba *hisi_hba;
+ struct device *dev = &pdev->dev;
+ struct asd_sas_phy **arr_phy;
+ struct asd_sas_port **arr_port;
+ struct sas_ha_struct *sha;
+ int rc, phy_nr, port_nr, i;
+
+ shost = hisi_sas_shost_alloc(pdev, hw);
+ if (!shost)
+ return -ENOMEM;
+
+ sha = SHOST_TO_SAS_HA(shost);
+ hisi_hba = shost_priv(shost);
+ platform_set_drvdata(pdev, sha);
+
+ phy_nr = port_nr = hisi_hba->n_phy;
+
+ arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL);
+ arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL);
+ if (!arr_phy || !arr_port) {
+ rc = -ENOMEM;
+ goto err_out_ha;
+ }
+
+ sha->sas_phy = arr_phy;
+ sha->sas_port = arr_port;
+ sha->lldd_ha = hisi_hba;
+
+ shost->transportt = hisi_sas_stt;
+ shost->max_id = HISI_SAS_MAX_DEVICES;
+ shost->max_lun = ~0;
+ shost->max_channel = 1;
+ shost->max_cmd_len = 16;
+ if (hisi_hba->hw->slot_index_alloc) {
+ shost->can_queue = HISI_SAS_MAX_COMMANDS;
+ shost->cmd_per_lun = HISI_SAS_MAX_COMMANDS;
+ } else {
+ shost->can_queue = HISI_SAS_UNRESERVED_IPTT;
+ shost->cmd_per_lun = HISI_SAS_UNRESERVED_IPTT;
+ }
+
+ sha->sas_ha_name = DRV_NAME;
+ sha->dev = hisi_hba->dev;
+ sha->lldd_module = THIS_MODULE;
+ sha->sas_addr = &hisi_hba->sas_addr[0];
+ sha->num_phys = hisi_hba->n_phy;
+ sha->core.shost = hisi_hba->shost;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy;
+ sha->sas_port[i] = &hisi_hba->port[i].sas_port;
+ }
+
+ rc = scsi_add_host(shost, &pdev->dev);
+ if (rc)
+ goto err_out_ha;
+
+ rc = sas_register_ha(sha);
+ if (rc)
+ goto err_out_register_ha;
+
+ rc = hisi_hba->hw->hw_init(hisi_hba);
+ if (rc)
+ goto err_out_register_ha;
+
+ scsi_scan_host(shost);
+
+ return 0;
+
+err_out_register_ha:
+ scsi_remove_host(shost);
+err_out_ha:
+ hisi_sas_debugfs_exit(hisi_hba);
+ hisi_sas_free(hisi_hba);
+ scsi_host_put(shost);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_probe);
+
+struct dentry *hisi_sas_debugfs_dir;
+
+static void hisi_sas_debugfs_snapshot_cq_reg(struct hisi_hba *hisi_hba)
+{
+ int queue_entry_size = hisi_hba->hw->complete_hdr_size;
+ int dump_index = hisi_hba->debugfs_dump_index;
+ int i;
+
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ memcpy(hisi_hba->debugfs_cq[dump_index][i].complete_hdr,
+ hisi_hba->complete_hdr[i],
+ HISI_SAS_QUEUE_SLOTS * queue_entry_size);
+}
+
+static void hisi_sas_debugfs_snapshot_dq_reg(struct hisi_hba *hisi_hba)
+{
+ int queue_entry_size = sizeof(struct hisi_sas_cmd_hdr);
+ int dump_index = hisi_hba->debugfs_dump_index;
+ int i;
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ struct hisi_sas_cmd_hdr *debugfs_cmd_hdr, *cmd_hdr;
+ int j;
+
+ debugfs_cmd_hdr = hisi_hba->debugfs_dq[dump_index][i].hdr;
+ cmd_hdr = hisi_hba->cmd_hdr[i];
+
+ for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++)
+ memcpy(&debugfs_cmd_hdr[j], &cmd_hdr[j],
+ queue_entry_size);
+ }
+}
+
+static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba)
+{
+ int dump_index = hisi_hba->debugfs_dump_index;
+ const struct hisi_sas_debugfs_reg *port =
+ hisi_hba->hw->debugfs_reg_port;
+ int i, phy_cnt;
+ u32 offset;
+ u32 *databuf;
+
+ for (phy_cnt = 0; phy_cnt < hisi_hba->n_phy; phy_cnt++) {
+ databuf = hisi_hba->debugfs_port_reg[dump_index][phy_cnt].data;
+ for (i = 0; i < port->count; i++, databuf++) {
+ offset = port->base_off + 4 * i;
+ *databuf = port->read_port_reg(hisi_hba, phy_cnt,
+ offset);
+ }
+ }
+}
+
+static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba)
+{
+ int dump_index = hisi_hba->debugfs_dump_index;
+ u32 *databuf = hisi_hba->debugfs_regs[dump_index][DEBUGFS_GLOBAL].data;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const struct hisi_sas_debugfs_reg *global =
+ hw->debugfs_reg_array[DEBUGFS_GLOBAL];
+ int i;
+
+ for (i = 0; i < global->count; i++, databuf++)
+ *databuf = global->read_global_reg(hisi_hba, 4 * i);
+}
+
+static void hisi_sas_debugfs_snapshot_axi_reg(struct hisi_hba *hisi_hba)
+{
+ int dump_index = hisi_hba->debugfs_dump_index;
+ u32 *databuf = hisi_hba->debugfs_regs[dump_index][DEBUGFS_AXI].data;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const struct hisi_sas_debugfs_reg *axi =
+ hw->debugfs_reg_array[DEBUGFS_AXI];
+ int i;
+
+ for (i = 0; i < axi->count; i++, databuf++)
+ *databuf = axi->read_global_reg(hisi_hba,
+ 4 * i + axi->base_off);
+}
+
+static void hisi_sas_debugfs_snapshot_ras_reg(struct hisi_hba *hisi_hba)
+{
+ int dump_index = hisi_hba->debugfs_dump_index;
+ u32 *databuf = hisi_hba->debugfs_regs[dump_index][DEBUGFS_RAS].data;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const struct hisi_sas_debugfs_reg *ras =
+ hw->debugfs_reg_array[DEBUGFS_RAS];
+ int i;
+
+ for (i = 0; i < ras->count; i++, databuf++)
+ *databuf = ras->read_global_reg(hisi_hba,
+ 4 * i + ras->base_off);
+}
+
+static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba)
+{
+ int dump_index = hisi_hba->debugfs_dump_index;
+ void *cachebuf = hisi_hba->debugfs_itct_cache[dump_index].cache;
+ void *databuf = hisi_hba->debugfs_itct[dump_index].itct;
+ struct hisi_sas_itct *itct;
+ int i;
+
+ hisi_hba->hw->read_iost_itct_cache(hisi_hba, HISI_SAS_ITCT_CACHE,
+ cachebuf);
+
+ itct = hisi_hba->itct;
+
+ for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) {
+ memcpy(databuf, itct, sizeof(struct hisi_sas_itct));
+ databuf += sizeof(struct hisi_sas_itct);
+ }
+}
+
+static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba)
+{
+ int dump_index = hisi_hba->debugfs_dump_index;
+ int max_command_entries = HISI_SAS_MAX_COMMANDS;
+ void *cachebuf = hisi_hba->debugfs_iost_cache[dump_index].cache;
+ void *databuf = hisi_hba->debugfs_iost[dump_index].iost;
+ struct hisi_sas_iost *iost;
+ int i;
+
+ hisi_hba->hw->read_iost_itct_cache(hisi_hba, HISI_SAS_IOST_CACHE,
+ cachebuf);
+
+ iost = hisi_hba->iost;
+
+ for (i = 0; i < max_command_entries; i++, iost++) {
+ memcpy(databuf, iost, sizeof(struct hisi_sas_iost));
+ databuf += sizeof(struct hisi_sas_iost);
+ }
+}
+
+static const char *
+hisi_sas_debugfs_to_reg_name(int off, int base_off,
+ const struct hisi_sas_debugfs_reg_lu *lu)
+{
+ for (; lu->name; lu++) {
+ if (off == lu->off - base_off)
+ return lu->name;
+ }
+
+ return NULL;
+}
+
+static void hisi_sas_debugfs_print_reg(u32 *regs_val, const void *ptr,
+ struct seq_file *s)
+{
+ const struct hisi_sas_debugfs_reg *reg = ptr;
+ int i;
+
+ for (i = 0; i < reg->count; i++) {
+ int off = i * 4;
+ const char *name;
+
+ name = hisi_sas_debugfs_to_reg_name(off, reg->base_off,
+ reg->lu);
+
+ if (name)
+ seq_printf(s, "0x%08x 0x%08x %s\n", off,
+ regs_val[i], name);
+ else
+ seq_printf(s, "0x%08x 0x%08x\n", off,
+ regs_val[i]);
+ }
+}
+
+static int hisi_sas_debugfs_global_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_regs *global = s->private;
+ struct hisi_hba *hisi_hba = global->hisi_hba;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const void *reg_global = hw->debugfs_reg_array[DEBUGFS_GLOBAL];
+
+ hisi_sas_debugfs_print_reg(global->data,
+ reg_global, s);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_global_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_global_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_global_fops = {
+ .open = hisi_sas_debugfs_global_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_axi_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_regs *axi = s->private;
+ struct hisi_hba *hisi_hba = axi->hisi_hba;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const void *reg_axi = hw->debugfs_reg_array[DEBUGFS_AXI];
+
+ hisi_sas_debugfs_print_reg(axi->data,
+ reg_axi, s);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_axi_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_axi_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_axi_fops = {
+ .open = hisi_sas_debugfs_axi_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_ras_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_regs *ras = s->private;
+ struct hisi_hba *hisi_hba = ras->hisi_hba;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const void *reg_ras = hw->debugfs_reg_array[DEBUGFS_RAS];
+
+ hisi_sas_debugfs_print_reg(ras->data,
+ reg_ras, s);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_ras_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_ras_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_ras_fops = {
+ .open = hisi_sas_debugfs_ras_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_port_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_port *port = s->private;
+ struct hisi_sas_phy *phy = port->phy;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const struct hisi_sas_debugfs_reg *reg_port = hw->debugfs_reg_port;
+
+ hisi_sas_debugfs_print_reg(port->data, reg_port, s);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_port_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_port_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_port_fops = {
+ .open = hisi_sas_debugfs_port_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static void hisi_sas_show_row_64(struct seq_file *s, int index,
+ int sz, __le64 *ptr)
+{
+ int i;
+
+ /* completion header size not fixed per HW version */
+ seq_printf(s, "index %04d:\n\t", index);
+ for (i = 1; i <= sz / 8; i++, ptr++) {
+ seq_printf(s, " 0x%016llx", le64_to_cpu(*ptr));
+ if (!(i % 2))
+ seq_puts(s, "\n\t");
+ }
+
+ seq_puts(s, "\n");
+}
+
+static void hisi_sas_show_row_32(struct seq_file *s, int index,
+ int sz, __le32 *ptr)
+{
+ int i;
+
+ /* completion header size not fixed per HW version */
+ seq_printf(s, "index %04d:\n\t", index);
+ for (i = 1; i <= sz / 4; i++, ptr++) {
+ seq_printf(s, " 0x%08x", le32_to_cpu(*ptr));
+ if (!(i % 4))
+ seq_puts(s, "\n\t");
+ }
+ seq_puts(s, "\n");
+}
+
+static void hisi_sas_cq_show_slot(struct seq_file *s, int slot,
+ struct hisi_sas_debugfs_cq *debugfs_cq)
+{
+ struct hisi_sas_cq *cq = debugfs_cq->cq;
+ struct hisi_hba *hisi_hba = cq->hisi_hba;
+ __le32 *complete_hdr = debugfs_cq->complete_hdr +
+ (hisi_hba->hw->complete_hdr_size * slot);
+
+ hisi_sas_show_row_32(s, slot,
+ hisi_hba->hw->complete_hdr_size,
+ complete_hdr);
+}
+
+static int hisi_sas_debugfs_cq_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_cq *debugfs_cq = s->private;
+ int slot;
+
+ for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) {
+ hisi_sas_cq_show_slot(s, slot, debugfs_cq);
+ }
+ return 0;
+}
+
+static int hisi_sas_debugfs_cq_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_cq_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_cq_fops = {
+ .open = hisi_sas_debugfs_cq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static void hisi_sas_dq_show_slot(struct seq_file *s, int slot, void *dq_ptr)
+{
+ struct hisi_sas_debugfs_dq *debugfs_dq = dq_ptr;
+ void *cmd_queue = debugfs_dq->hdr;
+ __le32 *cmd_hdr = cmd_queue +
+ sizeof(struct hisi_sas_cmd_hdr) * slot;
+
+ hisi_sas_show_row_32(s, slot, sizeof(struct hisi_sas_cmd_hdr), cmd_hdr);
+}
+
+static int hisi_sas_debugfs_dq_show(struct seq_file *s, void *p)
+{
+ int slot;
+
+ for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) {
+ hisi_sas_dq_show_slot(s, slot, s->private);
+ }
+ return 0;
+}
+
+static int hisi_sas_debugfs_dq_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_dq_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_dq_fops = {
+ .open = hisi_sas_debugfs_dq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_iost *debugfs_iost = s->private;
+ struct hisi_sas_iost *iost = debugfs_iost->iost;
+ int i, max_command_entries = HISI_SAS_MAX_COMMANDS;
+
+ for (i = 0; i < max_command_entries; i++, iost++) {
+ __le64 *data = &iost->qw0;
+
+ hisi_sas_show_row_64(s, i, sizeof(*iost), data);
+ }
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_iost_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_iost_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_iost_fops = {
+ .open = hisi_sas_debugfs_iost_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_iost_cache_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_iost_cache *debugfs_iost_cache = s->private;
+ struct hisi_sas_iost_itct_cache *iost_cache = debugfs_iost_cache->cache;
+ u32 cache_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ * 4;
+ int i, tab_idx;
+ __le64 *iost;
+
+ for (i = 0; i < HISI_SAS_IOST_ITCT_CACHE_NUM; i++, iost_cache++) {
+ /*
+ * Data struct of IOST cache:
+ * Data[1]: BIT0~15: Table index
+ * Bit16: Valid mask
+ * Data[2]~[9]: IOST table
+ */
+ tab_idx = (iost_cache->data[1] & 0xffff);
+ iost = (__le64 *)iost_cache;
+
+ hisi_sas_show_row_64(s, tab_idx, cache_size, iost);
+ }
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_iost_cache_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_iost_cache_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_iost_cache_fops = {
+ .open = hisi_sas_debugfs_iost_cache_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_itct_show(struct seq_file *s, void *p)
+{
+ int i;
+ struct hisi_sas_debugfs_itct *debugfs_itct = s->private;
+ struct hisi_sas_itct *itct = debugfs_itct->itct;
+
+ for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) {
+ __le64 *data = &itct->qw0;
+
+ hisi_sas_show_row_64(s, i, sizeof(*itct), data);
+ }
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_itct_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_itct_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_itct_fops = {
+ .open = hisi_sas_debugfs_itct_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int hisi_sas_debugfs_itct_cache_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_debugfs_itct_cache *debugfs_itct_cache = s->private;
+ struct hisi_sas_iost_itct_cache *itct_cache = debugfs_itct_cache->cache;
+ u32 cache_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ * 4;
+ int i, tab_idx;
+ __le64 *itct;
+
+ for (i = 0; i < HISI_SAS_IOST_ITCT_CACHE_NUM; i++, itct_cache++) {
+ /*
+ * Data struct of ITCT cache:
+ * Data[1]: BIT0~15: Table index
+ * Bit16: Valid mask
+ * Data[2]~[9]: ITCT table
+ */
+ tab_idx = itct_cache->data[1] & 0xffff;
+ itct = (__le64 *)itct_cache;
+
+ hisi_sas_show_row_64(s, tab_idx, cache_size, itct);
+ }
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_itct_cache_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_itct_cache_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_itct_cache_fops = {
+ .open = hisi_sas_debugfs_itct_cache_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
+{
+ u64 *debugfs_timestamp;
+ int dump_index = hisi_hba->debugfs_dump_index;
+ struct dentry *dump_dentry;
+ struct dentry *dentry;
+ char name[256];
+ int p;
+ int c;
+ int d;
+
+ snprintf(name, 256, "%d", dump_index);
+
+ dump_dentry = debugfs_create_dir(name, hisi_hba->debugfs_dump_dentry);
+
+ debugfs_timestamp = &hisi_hba->debugfs_timestamp[dump_index];
+
+ debugfs_create_u64("timestamp", 0400, dump_dentry,
+ debugfs_timestamp);
+
+ debugfs_create_file("global", 0400, dump_dentry,
+ &hisi_hba->debugfs_regs[dump_index][DEBUGFS_GLOBAL],
+ &hisi_sas_debugfs_global_fops);
+
+ /* Create port dir and files */
+ dentry = debugfs_create_dir("port", dump_dentry);
+ for (p = 0; p < hisi_hba->n_phy; p++) {
+ snprintf(name, 256, "%d", p);
+
+ debugfs_create_file(name, 0400, dentry,
+ &hisi_hba->debugfs_port_reg[dump_index][p],
+ &hisi_sas_debugfs_port_fops);
+ }
+
+ /* Create CQ dir and files */
+ dentry = debugfs_create_dir("cq", dump_dentry);
+ for (c = 0; c < hisi_hba->queue_count; c++) {
+ snprintf(name, 256, "%d", c);
+
+ debugfs_create_file(name, 0400, dentry,
+ &hisi_hba->debugfs_cq[dump_index][c],
+ &hisi_sas_debugfs_cq_fops);
+ }
+
+ /* Create DQ dir and files */
+ dentry = debugfs_create_dir("dq", dump_dentry);
+ for (d = 0; d < hisi_hba->queue_count; d++) {
+ snprintf(name, 256, "%d", d);
+
+ debugfs_create_file(name, 0400, dentry,
+ &hisi_hba->debugfs_dq[dump_index][d],
+ &hisi_sas_debugfs_dq_fops);
+ }
+
+ debugfs_create_file("iost", 0400, dump_dentry,
+ &hisi_hba->debugfs_iost[dump_index],
+ &hisi_sas_debugfs_iost_fops);
+
+ debugfs_create_file("iost_cache", 0400, dump_dentry,
+ &hisi_hba->debugfs_iost_cache[dump_index],
+ &hisi_sas_debugfs_iost_cache_fops);
+
+ debugfs_create_file("itct", 0400, dump_dentry,
+ &hisi_hba->debugfs_itct[dump_index],
+ &hisi_sas_debugfs_itct_fops);
+
+ debugfs_create_file("itct_cache", 0400, dump_dentry,
+ &hisi_hba->debugfs_itct_cache[dump_index],
+ &hisi_sas_debugfs_itct_cache_fops);
+
+ debugfs_create_file("axi", 0400, dump_dentry,
+ &hisi_hba->debugfs_regs[dump_index][DEBUGFS_AXI],
+ &hisi_sas_debugfs_axi_fops);
+
+ debugfs_create_file("ras", 0400, dump_dentry,
+ &hisi_hba->debugfs_regs[dump_index][DEBUGFS_RAS],
+ &hisi_sas_debugfs_ras_fops);
+
+ return;
+}
+
+static void hisi_sas_debugfs_snapshot_regs(struct hisi_hba *hisi_hba)
+{
+ hisi_hba->hw->snapshot_prepare(hisi_hba);
+
+ hisi_sas_debugfs_snapshot_global_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_port_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_axi_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_ras_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_cq_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_dq_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_itct_reg(hisi_hba);
+ hisi_sas_debugfs_snapshot_iost_reg(hisi_hba);
+
+ hisi_sas_debugfs_create_files(hisi_hba);
+
+ hisi_hba->hw->snapshot_restore(hisi_hba);
+}
+
+static ssize_t hisi_sas_debugfs_trigger_dump_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct hisi_hba *hisi_hba = file->f_inode->i_private;
+ char buf[8];
+
+ if (hisi_hba->debugfs_dump_index >= hisi_sas_debugfs_dump_count)
+ return -EFAULT;
+
+ if (count > 8)
+ return -EFAULT;
+
+ if (copy_from_user(buf, user_buf, count))
+ return -EFAULT;
+
+ if (buf[0] != '1')
+ return -EFAULT;
+
+ queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
+
+ return count;
+}
+
+static const struct file_operations hisi_sas_debugfs_trigger_dump_fops = {
+ .write = &hisi_sas_debugfs_trigger_dump_write,
+ .owner = THIS_MODULE,
+};
+
+enum {
+ HISI_SAS_BIST_LOOPBACK_MODE_DIGITAL = 0,
+ HISI_SAS_BIST_LOOPBACK_MODE_SERDES,
+ HISI_SAS_BIST_LOOPBACK_MODE_REMOTE,
+};
+
+static const struct {
+ int value;
+ char *name;
+} hisi_sas_debugfs_loop_linkrate[] = {
+ { SAS_LINK_RATE_1_5_GBPS, "1.5 Gbit" },
+ { SAS_LINK_RATE_3_0_GBPS, "3.0 Gbit" },
+ { SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" },
+ { SAS_LINK_RATE_12_0_GBPS, "12.0 Gbit" },
+};
+
+static int hisi_sas_debugfs_bist_linkrate_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_linkrate); i++) {
+ int match = (hisi_hba->debugfs_bist_linkrate ==
+ hisi_sas_debugfs_loop_linkrate[i].value);
+
+ seq_printf(s, "%s%s%s ", match ? "[" : "",
+ hisi_sas_debugfs_loop_linkrate[i].name,
+ match ? "]" : "");
+ }
+ seq_puts(s, "\n");
+
+ return 0;
+}
+
+static ssize_t hisi_sas_debugfs_bist_linkrate_write(struct file *filp,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct seq_file *m = filp->private_data;
+ struct hisi_hba *hisi_hba = m->private;
+ char kbuf[16] = {}, *pkbuf;
+ bool found = false;
+ int i;
+
+ if (hisi_hba->debugfs_bist_enable)
+ return -EPERM;
+
+ if (count >= sizeof(kbuf))
+ return -EOVERFLOW;
+
+ if (copy_from_user(kbuf, buf, count))
+ return -EINVAL;
+
+ pkbuf = strstrip(kbuf);
+
+ for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_linkrate); i++) {
+ if (!strncmp(hisi_sas_debugfs_loop_linkrate[i].name,
+ pkbuf, 16)) {
+ hisi_hba->debugfs_bist_linkrate =
+ hisi_sas_debugfs_loop_linkrate[i].value;
+ found = true;
+ break;
+ }
+ }
+
+ if (!found)
+ return -EINVAL;
+
+ return count;
+}
+
+static int hisi_sas_debugfs_bist_linkrate_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_bist_linkrate_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_bist_linkrate_ops = {
+ .open = hisi_sas_debugfs_bist_linkrate_open,
+ .read = seq_read,
+ .write = hisi_sas_debugfs_bist_linkrate_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static const struct {
+ int value;
+ char *name;
+} hisi_sas_debugfs_loop_code_mode[] = {
+ { HISI_SAS_BIST_CODE_MODE_PRBS7, "PRBS7" },
+ { HISI_SAS_BIST_CODE_MODE_PRBS23, "PRBS23" },
+ { HISI_SAS_BIST_CODE_MODE_PRBS31, "PRBS31" },
+ { HISI_SAS_BIST_CODE_MODE_JTPAT, "JTPAT" },
+ { HISI_SAS_BIST_CODE_MODE_CJTPAT, "CJTPAT" },
+ { HISI_SAS_BIST_CODE_MODE_SCRAMBED_0, "SCRAMBED_0" },
+ { HISI_SAS_BIST_CODE_MODE_TRAIN, "TRAIN" },
+ { HISI_SAS_BIST_CODE_MODE_TRAIN_DONE, "TRAIN_DONE" },
+ { HISI_SAS_BIST_CODE_MODE_HFTP, "HFTP" },
+ { HISI_SAS_BIST_CODE_MODE_MFTP, "MFTP" },
+ { HISI_SAS_BIST_CODE_MODE_LFTP, "LFTP" },
+ { HISI_SAS_BIST_CODE_MODE_FIXED_DATA, "FIXED_DATA" },
+};
+
+static int hisi_sas_debugfs_bist_code_mode_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_code_mode); i++) {
+ int match = (hisi_hba->debugfs_bist_code_mode ==
+ hisi_sas_debugfs_loop_code_mode[i].value);
+
+ seq_printf(s, "%s%s%s ", match ? "[" : "",
+ hisi_sas_debugfs_loop_code_mode[i].name,
+ match ? "]" : "");
+ }
+ seq_puts(s, "\n");
+
+ return 0;
+}
+
+static ssize_t hisi_sas_debugfs_bist_code_mode_write(struct file *filp,
+ const char __user *buf,
+ size_t count,
+ loff_t *ppos)
+{
+ struct seq_file *m = filp->private_data;
+ struct hisi_hba *hisi_hba = m->private;
+ char kbuf[16] = {}, *pkbuf;
+ bool found = false;
+ int i;
+
+ if (hisi_hba->debugfs_bist_enable)
+ return -EPERM;
+
+ if (count >= sizeof(kbuf))
+ return -EINVAL;
+
+ if (copy_from_user(kbuf, buf, count))
+ return -EOVERFLOW;
+
+ pkbuf = strstrip(kbuf);
+
+ for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_code_mode); i++) {
+ if (!strncmp(hisi_sas_debugfs_loop_code_mode[i].name,
+ pkbuf, 16)) {
+ hisi_hba->debugfs_bist_code_mode =
+ hisi_sas_debugfs_loop_code_mode[i].value;
+ found = true;
+ break;
+ }
+ }
+
+ if (!found)
+ return -EINVAL;
+
+ return count;
+}
+
+static int hisi_sas_debugfs_bist_code_mode_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_bist_code_mode_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_bist_code_mode_ops = {
+ .open = hisi_sas_debugfs_bist_code_mode_open,
+ .read = seq_read,
+ .write = hisi_sas_debugfs_bist_code_mode_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static ssize_t hisi_sas_debugfs_bist_phy_write(struct file *filp,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct seq_file *m = filp->private_data;
+ struct hisi_hba *hisi_hba = m->private;
+ unsigned int phy_no;
+ int val;
+
+ if (hisi_hba->debugfs_bist_enable)
+ return -EPERM;
+
+ val = kstrtouint_from_user(buf, count, 0, &phy_no);
+ if (val)
+ return val;
+
+ if (phy_no >= hisi_hba->n_phy)
+ return -EINVAL;
+
+ hisi_hba->debugfs_bist_phy_no = phy_no;
+
+ return count;
+}
+
+static int hisi_sas_debugfs_bist_phy_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+
+ seq_printf(s, "%d\n", hisi_hba->debugfs_bist_phy_no);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_bist_phy_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_bist_phy_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_bist_phy_ops = {
+ .open = hisi_sas_debugfs_bist_phy_open,
+ .read = seq_read,
+ .write = hisi_sas_debugfs_bist_phy_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static const struct {
+ int value;
+ char *name;
+} hisi_sas_debugfs_loop_modes[] = {
+ { HISI_SAS_BIST_LOOPBACK_MODE_DIGITAL, "digital" },
+ { HISI_SAS_BIST_LOOPBACK_MODE_SERDES, "serdes" },
+ { HISI_SAS_BIST_LOOPBACK_MODE_REMOTE, "remote" },
+};
+
+static int hisi_sas_debugfs_bist_mode_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_modes); i++) {
+ int match = (hisi_hba->debugfs_bist_mode ==
+ hisi_sas_debugfs_loop_modes[i].value);
+
+ seq_printf(s, "%s%s%s ", match ? "[" : "",
+ hisi_sas_debugfs_loop_modes[i].name,
+ match ? "]" : "");
+ }
+ seq_puts(s, "\n");
+
+ return 0;
+}
+
+static ssize_t hisi_sas_debugfs_bist_mode_write(struct file *filp,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct seq_file *m = filp->private_data;
+ struct hisi_hba *hisi_hba = m->private;
+ char kbuf[16] = {}, *pkbuf;
+ bool found = false;
+ int i;
+
+ if (hisi_hba->debugfs_bist_enable)
+ return -EPERM;
+
+ if (count >= sizeof(kbuf))
+ return -EINVAL;
+
+ if (copy_from_user(kbuf, buf, count))
+ return -EOVERFLOW;
+
+ pkbuf = strstrip(kbuf);
+
+ for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_modes); i++) {
+ if (!strncmp(hisi_sas_debugfs_loop_modes[i].name, pkbuf, 16)) {
+ hisi_hba->debugfs_bist_mode =
+ hisi_sas_debugfs_loop_modes[i].value;
+ found = true;
+ break;
+ }
+ }
+
+ if (!found)
+ return -EINVAL;
+
+ return count;
+}
+
+static int hisi_sas_debugfs_bist_mode_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_bist_mode_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_bist_mode_ops = {
+ .open = hisi_sas_debugfs_bist_mode_open,
+ .read = seq_read,
+ .write = hisi_sas_debugfs_bist_mode_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static ssize_t hisi_sas_debugfs_bist_enable_write(struct file *filp,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct seq_file *m = filp->private_data;
+ struct hisi_hba *hisi_hba = m->private;
+ unsigned int enable;
+ int val;
+
+ val = kstrtouint_from_user(buf, count, 0, &enable);
+ if (val)
+ return val;
+
+ if (enable > 1)
+ return -EINVAL;
+
+ if (enable == hisi_hba->debugfs_bist_enable)
+ return count;
+
+ if (!hisi_hba->hw->set_bist)
+ return -EPERM;
+
+ val = hisi_hba->hw->set_bist(hisi_hba, enable);
+ if (val < 0)
+ return val;
+
+ hisi_hba->debugfs_bist_enable = enable;
+
+ return count;
+}
+
+static int hisi_sas_debugfs_bist_enable_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+
+ seq_printf(s, "%d\n", hisi_hba->debugfs_bist_enable);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_bist_enable_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_bist_enable_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_bist_enable_ops = {
+ .open = hisi_sas_debugfs_bist_enable_open,
+ .read = seq_read,
+ .write = hisi_sas_debugfs_bist_enable_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static const struct {
+ char *name;
+} hisi_sas_debugfs_ffe_name[FFE_CFG_MAX] = {
+ { "SAS_1_5_GBPS" },
+ { "SAS_3_0_GBPS" },
+ { "SAS_6_0_GBPS" },
+ { "SAS_12_0_GBPS" },
+ { "FFE_RESV" },
+ { "SATA_1_5_GBPS" },
+ { "SATA_3_0_GBPS" },
+ { "SATA_6_0_GBPS" },
+};
+
+static ssize_t hisi_sas_debugfs_write(struct file *filp,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct seq_file *m = filp->private_data;
+ u32 *val = m->private;
+ int res;
+
+ res = kstrtouint_from_user(buf, count, 0, val);
+ if (res)
+ return res;
+
+ return count;
+}
+
+static int hisi_sas_debugfs_show(struct seq_file *s, void *p)
+{
+ u32 *val = s->private;
+
+ seq_printf(s, "0x%x\n", *val);
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_ops = {
+ .open = hisi_sas_debugfs_open,
+ .read = seq_read,
+ .write = hisi_sas_debugfs_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static ssize_t hisi_sas_debugfs_phy_down_cnt_write(struct file *filp,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct seq_file *s = filp->private_data;
+ struct hisi_sas_phy *phy = s->private;
+ unsigned int set_val;
+ int res;
+
+ res = kstrtouint_from_user(buf, count, 0, &set_val);
+ if (res)
+ return res;
+
+ if (set_val > 0)
+ return -EINVAL;
+
+ atomic_set(&phy->down_cnt, 0);
+
+ return count;
+}
+
+static int hisi_sas_debugfs_phy_down_cnt_show(struct seq_file *s, void *p)
+{
+ struct hisi_sas_phy *phy = s->private;
+
+ seq_printf(s, "%d\n", atomic_read(&phy->down_cnt));
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_phy_down_cnt_open(struct inode *inode,
+ struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_phy_down_cnt_show,
+ inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_phy_down_cnt_ops = {
+ .open = hisi_sas_debugfs_phy_down_cnt_open,
+ .read = seq_read,
+ .write = hisi_sas_debugfs_phy_down_cnt_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+void hisi_sas_debugfs_work_handler(struct work_struct *work)
+{
+ struct hisi_hba *hisi_hba =
+ container_of(work, struct hisi_hba, debugfs_work);
+ int debugfs_dump_index = hisi_hba->debugfs_dump_index;
+ struct device *dev = hisi_hba->dev;
+ u64 timestamp = local_clock();
+
+ if (debugfs_dump_index >= hisi_sas_debugfs_dump_count) {
+ dev_warn(dev, "dump count exceeded!\n");
+ return;
+ }
+
+ do_div(timestamp, NSEC_PER_MSEC);
+ hisi_hba->debugfs_timestamp[debugfs_dump_index] = timestamp;
+
+ hisi_sas_debugfs_snapshot_regs(hisi_hba);
+ hisi_hba->debugfs_dump_index++;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_work_handler);
+
+static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba, int dump_index)
+{
+ struct device *dev = hisi_hba->dev;
+ int i;
+
+ devm_kfree(dev, hisi_hba->debugfs_iost_cache[dump_index].cache);
+ devm_kfree(dev, hisi_hba->debugfs_itct_cache[dump_index].cache);
+ devm_kfree(dev, hisi_hba->debugfs_iost[dump_index].iost);
+ devm_kfree(dev, hisi_hba->debugfs_itct[dump_index].itct);
+
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ devm_kfree(dev, hisi_hba->debugfs_dq[dump_index][i].hdr);
+
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ devm_kfree(dev,
+ hisi_hba->debugfs_cq[dump_index][i].complete_hdr);
+
+ for (i = 0; i < DEBUGFS_REGS_NUM; i++)
+ devm_kfree(dev, hisi_hba->debugfs_regs[dump_index][i].data);
+
+ for (i = 0; i < hisi_hba->n_phy; i++)
+ devm_kfree(dev, hisi_hba->debugfs_port_reg[dump_index][i].data);
+}
+
+static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba, int dump_index)
+{
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ struct device *dev = hisi_hba->dev;
+ int p, c, d, r, i;
+ size_t sz;
+
+ for (r = 0; r < DEBUGFS_REGS_NUM; r++) {
+ struct hisi_sas_debugfs_regs *regs =
+ &hisi_hba->debugfs_regs[dump_index][r];
+
+ sz = hw->debugfs_reg_array[r]->count * 4;
+ regs->data = devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!regs->data)
+ goto fail;
+ regs->hisi_hba = hisi_hba;
+ }
+
+ sz = hw->debugfs_reg_port->count * 4;
+ for (p = 0; p < hisi_hba->n_phy; p++) {
+ struct hisi_sas_debugfs_port *port =
+ &hisi_hba->debugfs_port_reg[dump_index][p];
+
+ port->data = devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!port->data)
+ goto fail;
+ port->phy = &hisi_hba->phy[p];
+ }
+
+ sz = hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
+ for (c = 0; c < hisi_hba->queue_count; c++) {
+ struct hisi_sas_debugfs_cq *cq =
+ &hisi_hba->debugfs_cq[dump_index][c];
+
+ cq->complete_hdr = devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!cq->complete_hdr)
+ goto fail;
+ cq->cq = &hisi_hba->cq[c];
+ }
+
+ sz = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
+ for (d = 0; d < hisi_hba->queue_count; d++) {
+ struct hisi_sas_debugfs_dq *dq =
+ &hisi_hba->debugfs_dq[dump_index][d];
+
+ dq->hdr = devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!dq->hdr)
+ goto fail;
+ dq->dq = &hisi_hba->dq[d];
+ }
+
+ sz = HISI_SAS_MAX_COMMANDS * sizeof(struct hisi_sas_iost);
+
+ hisi_hba->debugfs_iost[dump_index].iost =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_iost[dump_index].iost)
+ goto fail;
+
+ sz = HISI_SAS_IOST_ITCT_CACHE_NUM *
+ sizeof(struct hisi_sas_iost_itct_cache);
+
+ hisi_hba->debugfs_iost_cache[dump_index].cache =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_iost_cache[dump_index].cache)
+ goto fail;
+
+ sz = HISI_SAS_IOST_ITCT_CACHE_NUM *
+ sizeof(struct hisi_sas_iost_itct_cache);
+
+ hisi_hba->debugfs_itct_cache[dump_index].cache =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_itct_cache[dump_index].cache)
+ goto fail;
+
+ /* New memory allocation must be locate before itct */
+ sz = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
+
+ hisi_hba->debugfs_itct[dump_index].itct =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_itct[dump_index].itct)
+ goto fail;
+
+ return 0;
+fail:
+ for (i = 0; i < hisi_sas_debugfs_dump_count; i++)
+ hisi_sas_debugfs_release(hisi_hba, i);
+ return -ENOMEM;
+}
+
+static void hisi_sas_debugfs_phy_down_cnt_init(struct hisi_hba *hisi_hba)
+{
+ struct dentry *dir = debugfs_create_dir("phy_down_cnt",
+ hisi_hba->debugfs_dir);
+ char name[16];
+ int phy_no;
+
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
+ snprintf(name, 16, "%d", phy_no);
+ debugfs_create_file(name, 0600, dir,
+ &hisi_hba->phy[phy_no],
+ &hisi_sas_debugfs_phy_down_cnt_ops);
+ }
+}
+
+static void hisi_sas_debugfs_bist_init(struct hisi_hba *hisi_hba)
+{
+ struct dentry *ports_dentry;
+ int phy_no;
+
+ hisi_hba->debugfs_bist_dentry =
+ debugfs_create_dir("bist", hisi_hba->debugfs_dir);
+ debugfs_create_file("link_rate", 0600,
+ hisi_hba->debugfs_bist_dentry, hisi_hba,
+ &hisi_sas_debugfs_bist_linkrate_ops);
+
+ debugfs_create_file("code_mode", 0600,
+ hisi_hba->debugfs_bist_dentry, hisi_hba,
+ &hisi_sas_debugfs_bist_code_mode_ops);
+
+ debugfs_create_file("fixed_code", 0600,
+ hisi_hba->debugfs_bist_dentry,
+ &hisi_hba->debugfs_bist_fixed_code[0],
+ &hisi_sas_debugfs_ops);
+
+ debugfs_create_file("fixed_code_1", 0600,
+ hisi_hba->debugfs_bist_dentry,
+ &hisi_hba->debugfs_bist_fixed_code[1],
+ &hisi_sas_debugfs_ops);
+
+ debugfs_create_file("phy_id", 0600, hisi_hba->debugfs_bist_dentry,
+ hisi_hba, &hisi_sas_debugfs_bist_phy_ops);
+
+ debugfs_create_u32("cnt", 0600, hisi_hba->debugfs_bist_dentry,
+ &hisi_hba->debugfs_bist_cnt);
+
+ debugfs_create_file("loopback_mode", 0600,
+ hisi_hba->debugfs_bist_dentry,
+ hisi_hba, &hisi_sas_debugfs_bist_mode_ops);
+
+ debugfs_create_file("enable", 0600, hisi_hba->debugfs_bist_dentry,
+ hisi_hba, &hisi_sas_debugfs_bist_enable_ops);
+
+ ports_dentry = debugfs_create_dir("port", hisi_hba->debugfs_bist_dentry);
+
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
+ struct dentry *port_dentry;
+ struct dentry *ffe_dentry;
+ char name[256];
+ int i;
+
+ snprintf(name, 256, "%d", phy_no);
+ port_dentry = debugfs_create_dir(name, ports_dentry);
+ ffe_dentry = debugfs_create_dir("ffe", port_dentry);
+ for (i = 0; i < FFE_CFG_MAX; i++) {
+ if (i == FFE_RESV)
+ continue;
+ debugfs_create_file(hisi_sas_debugfs_ffe_name[i].name,
+ 0600, ffe_dentry,
+ &hisi_hba->debugfs_bist_ffe[phy_no][i],
+ &hisi_sas_debugfs_ops);
+ }
+ }
+
+ hisi_hba->debugfs_bist_linkrate = SAS_LINK_RATE_1_5_GBPS;
+}
+
+void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int i;
+
+ hisi_hba->debugfs_dir = debugfs_create_dir(dev_name(dev),
+ hisi_sas_debugfs_dir);
+ debugfs_create_file("trigger_dump", 0200,
+ hisi_hba->debugfs_dir,
+ hisi_hba,
+ &hisi_sas_debugfs_trigger_dump_fops);
+
+ /* create bist structures */
+ hisi_sas_debugfs_bist_init(hisi_hba);
+
+ hisi_hba->debugfs_dump_dentry =
+ debugfs_create_dir("dump", hisi_hba->debugfs_dir);
+
+ hisi_sas_debugfs_phy_down_cnt_init(hisi_hba);
+
+ for (i = 0; i < hisi_sas_debugfs_dump_count; i++) {
+ if (hisi_sas_debugfs_alloc(hisi_hba, i)) {
+ debugfs_remove_recursive(hisi_hba->debugfs_dir);
+ dev_dbg(dev, "failed to init debugfs!\n");
+ break;
+ }
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_init);
+
+void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba)
+{
+ debugfs_remove_recursive(hisi_hba->debugfs_dir);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_exit);
+
+int hisi_sas_remove(struct platform_device *pdev)
+{
+ struct sas_ha_struct *sha = platform_get_drvdata(pdev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ struct Scsi_Host *shost = sha->core.shost;
+
+ if (timer_pending(&hisi_hba->timer))
+ del_timer(&hisi_hba->timer);
+
+ sas_unregister_ha(sha);
+ sas_remove_host(sha->core.shost);
+
+ hisi_sas_free(hisi_hba);
+ scsi_host_put(shost);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_remove);
+
+bool hisi_sas_debugfs_enable;
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_enable);
+module_param_named(debugfs_enable, hisi_sas_debugfs_enable, bool, 0444);
+MODULE_PARM_DESC(hisi_sas_debugfs_enable, "Enable driver debugfs (default disabled)");
+
+u32 hisi_sas_debugfs_dump_count = 1;
+EXPORT_SYMBOL_GPL(hisi_sas_debugfs_dump_count);
+module_param_named(debugfs_dump_count, hisi_sas_debugfs_dump_count, uint, 0444);
+MODULE_PARM_DESC(hisi_sas_debugfs_dump_count, "Number of debugfs dumps to allow");
+
+static __init int hisi_sas_init(void)
+{
+ hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops);
+ if (!hisi_sas_stt)
+ return -ENOMEM;
+
+ if (hisi_sas_debugfs_enable) {
+ hisi_sas_debugfs_dir = debugfs_create_dir("hisi_sas", NULL);
+ if (hisi_sas_debugfs_dump_count > HISI_SAS_MAX_DEBUGFS_DUMP) {
+ pr_info("hisi_sas: Limiting debugfs dump count\n");
+ hisi_sas_debugfs_dump_count = HISI_SAS_MAX_DEBUGFS_DUMP;
+ }
+ }
+
+ return 0;
+}
+
+static __exit void hisi_sas_exit(void)
+{
+ sas_release_transport(hisi_sas_stt);
+
+ debugfs_remove(hisi_sas_debugfs_dir);
+}
+
+module_init(hisi_sas_init);
+module_exit(hisi_sas_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
+MODULE_DESCRIPTION("HISILICON SAS controller driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
new file mode 100644
index 000000000..5b54cdd6b
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -0,0 +1,1839 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2015 Linaro Ltd.
+ * Copyright (c) 2015 Hisilicon Limited.
+ */
+
+#include "hisi_sas.h"
+#define DRV_NAME "hisi_sas_v1_hw"
+
+/* global registers need init*/
+#define DLVRY_QUEUE_ENABLE 0x0
+#define IOST_BASE_ADDR_LO 0x8
+#define IOST_BASE_ADDR_HI 0xc
+#define ITCT_BASE_ADDR_LO 0x10
+#define ITCT_BASE_ADDR_HI 0x14
+#define BROKEN_MSG_ADDR_LO 0x18
+#define BROKEN_MSG_ADDR_HI 0x1c
+#define PHY_CONTEXT 0x20
+#define PHY_STATE 0x24
+#define PHY_PORT_NUM_MA 0x28
+#define PORT_STATE 0x2c
+#define PHY_CONN_RATE 0x30
+#define HGC_TRANS_TASK_CNT_LIMIT 0x38
+#define AXI_AHB_CLK_CFG 0x3c
+#define HGC_SAS_TXFAIL_RETRY_CTRL 0x84
+#define HGC_GET_ITV_TIME 0x90
+#define DEVICE_MSG_WORK_MODE 0x94
+#define I_T_NEXUS_LOSS_TIME 0xa0
+#define BUS_INACTIVE_LIMIT_TIME 0xa8
+#define REJECT_TO_OPEN_LIMIT_TIME 0xac
+#define CFG_AGING_TIME 0xbc
+#define CFG_AGING_TIME_ITCT_REL_OFF 0
+#define CFG_AGING_TIME_ITCT_REL_MSK (0x1 << CFG_AGING_TIME_ITCT_REL_OFF)
+#define HGC_DFX_CFG2 0xc0
+#define FIS_LIST_BADDR_L 0xc4
+#define CFG_1US_TIMER_TRSH 0xcc
+#define CFG_SAS_CONFIG 0xd4
+#define HGC_IOST_ECC_ADDR 0x140
+#define HGC_IOST_ECC_ADDR_BAD_OFF 16
+#define HGC_IOST_ECC_ADDR_BAD_MSK (0x3ff << HGC_IOST_ECC_ADDR_BAD_OFF)
+#define HGC_DQ_ECC_ADDR 0x144
+#define HGC_DQ_ECC_ADDR_BAD_OFF 16
+#define HGC_DQ_ECC_ADDR_BAD_MSK (0xfff << HGC_DQ_ECC_ADDR_BAD_OFF)
+#define HGC_INVLD_DQE_INFO 0x148
+#define HGC_INVLD_DQE_INFO_DQ_OFF 0
+#define HGC_INVLD_DQE_INFO_DQ_MSK (0xffff << HGC_INVLD_DQE_INFO_DQ_OFF)
+#define HGC_INVLD_DQE_INFO_TYPE_OFF 16
+#define HGC_INVLD_DQE_INFO_TYPE_MSK (0x1 << HGC_INVLD_DQE_INFO_TYPE_OFF)
+#define HGC_INVLD_DQE_INFO_FORCE_OFF 17
+#define HGC_INVLD_DQE_INFO_FORCE_MSK (0x1 << HGC_INVLD_DQE_INFO_FORCE_OFF)
+#define HGC_INVLD_DQE_INFO_PHY_OFF 18
+#define HGC_INVLD_DQE_INFO_PHY_MSK (0x1 << HGC_INVLD_DQE_INFO_PHY_OFF)
+#define HGC_INVLD_DQE_INFO_ABORT_OFF 19
+#define HGC_INVLD_DQE_INFO_ABORT_MSK (0x1 << HGC_INVLD_DQE_INFO_ABORT_OFF)
+#define HGC_INVLD_DQE_INFO_IPTT_OF_OFF 20
+#define HGC_INVLD_DQE_INFO_IPTT_OF_MSK (0x1 << HGC_INVLD_DQE_INFO_IPTT_OF_OFF)
+#define HGC_INVLD_DQE_INFO_SSP_ERR_OFF 21
+#define HGC_INVLD_DQE_INFO_SSP_ERR_MSK (0x1 << HGC_INVLD_DQE_INFO_SSP_ERR_OFF)
+#define HGC_INVLD_DQE_INFO_OFL_OFF 22
+#define HGC_INVLD_DQE_INFO_OFL_MSK (0x1 << HGC_INVLD_DQE_INFO_OFL_OFF)
+#define HGC_ITCT_ECC_ADDR 0x150
+#define HGC_ITCT_ECC_ADDR_BAD_OFF 16
+#define HGC_ITCT_ECC_ADDR_BAD_MSK (0x3ff << HGC_ITCT_ECC_ADDR_BAD_OFF)
+#define HGC_AXI_FIFO_ERR_INFO 0x154
+#define INT_COAL_EN 0x1bc
+#define OQ_INT_COAL_TIME 0x1c0
+#define OQ_INT_COAL_CNT 0x1c4
+#define ENT_INT_COAL_TIME 0x1c8
+#define ENT_INT_COAL_CNT 0x1cc
+#define OQ_INT_SRC 0x1d0
+#define OQ_INT_SRC_MSK 0x1d4
+#define ENT_INT_SRC1 0x1d8
+#define ENT_INT_SRC2 0x1dc
+#define ENT_INT_SRC2_DQ_CFG_ERR_OFF 25
+#define ENT_INT_SRC2_DQ_CFG_ERR_MSK (0x1 << ENT_INT_SRC2_DQ_CFG_ERR_OFF)
+#define ENT_INT_SRC2_CQ_CFG_ERR_OFF 27
+#define ENT_INT_SRC2_CQ_CFG_ERR_MSK (0x1 << ENT_INT_SRC2_CQ_CFG_ERR_OFF)
+#define ENT_INT_SRC2_AXI_WRONG_INT_OFF 28
+#define ENT_INT_SRC2_AXI_WRONG_INT_MSK (0x1 << ENT_INT_SRC2_AXI_WRONG_INT_OFF)
+#define ENT_INT_SRC2_AXI_OVERLF_INT_OFF 29
+#define ENT_INT_SRC2_AXI_OVERLF_INT_MSK (0x1 << ENT_INT_SRC2_AXI_OVERLF_INT_OFF)
+#define ENT_INT_SRC_MSK1 0x1e0
+#define ENT_INT_SRC_MSK2 0x1e4
+#define SAS_ECC_INTR 0x1e8
+#define SAS_ECC_INTR_DQ_ECC1B_OFF 0
+#define SAS_ECC_INTR_DQ_ECC1B_MSK (0x1 << SAS_ECC_INTR_DQ_ECC1B_OFF)
+#define SAS_ECC_INTR_DQ_ECCBAD_OFF 1
+#define SAS_ECC_INTR_DQ_ECCBAD_MSK (0x1 << SAS_ECC_INTR_DQ_ECCBAD_OFF)
+#define SAS_ECC_INTR_IOST_ECC1B_OFF 2
+#define SAS_ECC_INTR_IOST_ECC1B_MSK (0x1 << SAS_ECC_INTR_IOST_ECC1B_OFF)
+#define SAS_ECC_INTR_IOST_ECCBAD_OFF 3
+#define SAS_ECC_INTR_IOST_ECCBAD_MSK (0x1 << SAS_ECC_INTR_IOST_ECCBAD_OFF)
+#define SAS_ECC_INTR_ITCT_ECC1B_OFF 4
+#define SAS_ECC_INTR_ITCT_ECC1B_MSK (0x1 << SAS_ECC_INTR_ITCT_ECC1B_OFF)
+#define SAS_ECC_INTR_ITCT_ECCBAD_OFF 5
+#define SAS_ECC_INTR_ITCT_ECCBAD_MSK (0x1 << SAS_ECC_INTR_ITCT_ECCBAD_OFF)
+#define SAS_ECC_INTR_MSK 0x1ec
+#define HGC_ERR_STAT_EN 0x238
+#define DLVRY_Q_0_BASE_ADDR_LO 0x260
+#define DLVRY_Q_0_BASE_ADDR_HI 0x264
+#define DLVRY_Q_0_DEPTH 0x268
+#define DLVRY_Q_0_WR_PTR 0x26c
+#define DLVRY_Q_0_RD_PTR 0x270
+#define COMPL_Q_0_BASE_ADDR_LO 0x4e0
+#define COMPL_Q_0_BASE_ADDR_HI 0x4e4
+#define COMPL_Q_0_DEPTH 0x4e8
+#define COMPL_Q_0_WR_PTR 0x4ec
+#define COMPL_Q_0_RD_PTR 0x4f0
+#define HGC_ECC_ERR 0x7d0
+
+/* phy registers need init */
+#define PORT_BASE (0x800)
+
+#define PHY_CFG (PORT_BASE + 0x0)
+#define PHY_CFG_ENA_OFF 0
+#define PHY_CFG_ENA_MSK (0x1 << PHY_CFG_ENA_OFF)
+#define PHY_CFG_DC_OPT_OFF 2
+#define PHY_CFG_DC_OPT_MSK (0x1 << PHY_CFG_DC_OPT_OFF)
+#define PROG_PHY_LINK_RATE (PORT_BASE + 0xc)
+#define PROG_PHY_LINK_RATE_MAX_OFF 0
+#define PROG_PHY_LINK_RATE_MAX_MSK (0xf << PROG_PHY_LINK_RATE_MAX_OFF)
+#define PROG_PHY_LINK_RATE_MIN_OFF 4
+#define PROG_PHY_LINK_RATE_MIN_MSK (0xf << PROG_PHY_LINK_RATE_MIN_OFF)
+#define PROG_PHY_LINK_RATE_OOB_OFF 8
+#define PROG_PHY_LINK_RATE_OOB_MSK (0xf << PROG_PHY_LINK_RATE_OOB_OFF)
+#define PHY_CTRL (PORT_BASE + 0x14)
+#define PHY_CTRL_RESET_OFF 0
+#define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF)
+#define PHY_RATE_NEGO (PORT_BASE + 0x30)
+#define PHY_PCN (PORT_BASE + 0x44)
+#define SL_TOUT_CFG (PORT_BASE + 0x8c)
+#define SL_CONTROL (PORT_BASE + 0x94)
+#define SL_CONTROL_NOTIFY_EN_OFF 0
+#define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
+#define TX_ID_DWORD0 (PORT_BASE + 0x9c)
+#define TX_ID_DWORD1 (PORT_BASE + 0xa0)
+#define TX_ID_DWORD2 (PORT_BASE + 0xa4)
+#define TX_ID_DWORD3 (PORT_BASE + 0xa8)
+#define TX_ID_DWORD4 (PORT_BASE + 0xaC)
+#define TX_ID_DWORD5 (PORT_BASE + 0xb0)
+#define TX_ID_DWORD6 (PORT_BASE + 0xb4)
+#define RX_IDAF_DWORD0 (PORT_BASE + 0xc4)
+#define RX_IDAF_DWORD1 (PORT_BASE + 0xc8)
+#define RX_IDAF_DWORD2 (PORT_BASE + 0xcc)
+#define RX_IDAF_DWORD3 (PORT_BASE + 0xd0)
+#define RX_IDAF_DWORD4 (PORT_BASE + 0xd4)
+#define RX_IDAF_DWORD5 (PORT_BASE + 0xd8)
+#define RX_IDAF_DWORD6 (PORT_BASE + 0xdc)
+#define RXOP_CHECK_CFG_H (PORT_BASE + 0xfc)
+#define DONE_RECEIVED_TIME (PORT_BASE + 0x12c)
+#define CON_CFG_DRIVER (PORT_BASE + 0x130)
+#define PHY_CONFIG2 (PORT_BASE + 0x1a8)
+#define PHY_CONFIG2_FORCE_TXDEEMPH_OFF 3
+#define PHY_CONFIG2_FORCE_TXDEEMPH_MSK (0x1 << PHY_CONFIG2_FORCE_TXDEEMPH_OFF)
+#define PHY_CONFIG2_TX_TRAIN_COMP_OFF 24
+#define PHY_CONFIG2_TX_TRAIN_COMP_MSK (0x1 << PHY_CONFIG2_TX_TRAIN_COMP_OFF)
+#define CHL_INT0 (PORT_BASE + 0x1b0)
+#define CHL_INT0_PHYCTRL_NOTRDY_OFF 0
+#define CHL_INT0_PHYCTRL_NOTRDY_MSK (0x1 << CHL_INT0_PHYCTRL_NOTRDY_OFF)
+#define CHL_INT0_SN_FAIL_NGR_OFF 2
+#define CHL_INT0_SN_FAIL_NGR_MSK (0x1 << CHL_INT0_SN_FAIL_NGR_OFF)
+#define CHL_INT0_DWS_LOST_OFF 4
+#define CHL_INT0_DWS_LOST_MSK (0x1 << CHL_INT0_DWS_LOST_OFF)
+#define CHL_INT0_SL_IDAF_FAIL_OFF 10
+#define CHL_INT0_SL_IDAF_FAIL_MSK (0x1 << CHL_INT0_SL_IDAF_FAIL_OFF)
+#define CHL_INT0_ID_TIMEOUT_OFF 11
+#define CHL_INT0_ID_TIMEOUT_MSK (0x1 << CHL_INT0_ID_TIMEOUT_OFF)
+#define CHL_INT0_SL_OPAF_FAIL_OFF 12
+#define CHL_INT0_SL_OPAF_FAIL_MSK (0x1 << CHL_INT0_SL_OPAF_FAIL_OFF)
+#define CHL_INT0_SL_PS_FAIL_OFF 21
+#define CHL_INT0_SL_PS_FAIL_MSK (0x1 << CHL_INT0_SL_PS_FAIL_OFF)
+#define CHL_INT1 (PORT_BASE + 0x1b4)
+#define CHL_INT2 (PORT_BASE + 0x1b8)
+#define CHL_INT2_SL_RX_BC_ACK_OFF 2
+#define CHL_INT2_SL_RX_BC_ACK_MSK (0x1 << CHL_INT2_SL_RX_BC_ACK_OFF)
+#define CHL_INT2_SL_PHY_ENA_OFF 6
+#define CHL_INT2_SL_PHY_ENA_MSK (0x1 << CHL_INT2_SL_PHY_ENA_OFF)
+#define CHL_INT0_MSK (PORT_BASE + 0x1bc)
+#define CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF 0
+#define CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK (0x1 << CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF)
+#define CHL_INT1_MSK (PORT_BASE + 0x1c0)
+#define CHL_INT2_MSK (PORT_BASE + 0x1c4)
+#define CHL_INT_COAL_EN (PORT_BASE + 0x1d0)
+#define DMA_TX_STATUS (PORT_BASE + 0x2d0)
+#define DMA_TX_STATUS_BUSY_OFF 0
+#define DMA_TX_STATUS_BUSY_MSK (0x1 << DMA_TX_STATUS_BUSY_OFF)
+#define DMA_RX_STATUS (PORT_BASE + 0x2e8)
+#define DMA_RX_STATUS_BUSY_OFF 0
+#define DMA_RX_STATUS_BUSY_MSK (0x1 << DMA_RX_STATUS_BUSY_OFF)
+
+#define AXI_CFG 0x5100
+#define RESET_VALUE 0x7ffff
+
+/* HW dma structures */
+/* Delivery queue header */
+/* dw0 */
+#define CMD_HDR_RESP_REPORT_OFF 5
+#define CMD_HDR_RESP_REPORT_MSK 0x20
+#define CMD_HDR_TLR_CTRL_OFF 6
+#define CMD_HDR_TLR_CTRL_MSK 0xc0
+#define CMD_HDR_PORT_OFF 17
+#define CMD_HDR_PORT_MSK 0xe0000
+#define CMD_HDR_PRIORITY_OFF 27
+#define CMD_HDR_PRIORITY_MSK 0x8000000
+#define CMD_HDR_MODE_OFF 28
+#define CMD_HDR_MODE_MSK 0x10000000
+#define CMD_HDR_CMD_OFF 29
+#define CMD_HDR_CMD_MSK 0xe0000000
+/* dw1 */
+#define CMD_HDR_VERIFY_DTL_OFF 10
+#define CMD_HDR_VERIFY_DTL_MSK 0x400
+#define CMD_HDR_SSP_FRAME_TYPE_OFF 13
+#define CMD_HDR_SSP_FRAME_TYPE_MSK 0xe000
+#define CMD_HDR_DEVICE_ID_OFF 16
+#define CMD_HDR_DEVICE_ID_MSK 0xffff0000
+/* dw2 */
+#define CMD_HDR_CFL_OFF 0
+#define CMD_HDR_CFL_MSK 0x1ff
+#define CMD_HDR_MRFL_OFF 15
+#define CMD_HDR_MRFL_MSK 0xff8000
+#define CMD_HDR_FIRST_BURST_OFF 25
+#define CMD_HDR_FIRST_BURST_MSK 0x2000000
+/* dw3 */
+#define CMD_HDR_IPTT_OFF 0
+#define CMD_HDR_IPTT_MSK 0xffff
+/* dw6 */
+#define CMD_HDR_DATA_SGL_LEN_OFF 16
+#define CMD_HDR_DATA_SGL_LEN_MSK 0xffff0000
+
+/* Completion header */
+#define CMPLT_HDR_IPTT_OFF 0
+#define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF)
+#define CMPLT_HDR_CMD_CMPLT_OFF 17
+#define CMPLT_HDR_CMD_CMPLT_MSK (0x1 << CMPLT_HDR_CMD_CMPLT_OFF)
+#define CMPLT_HDR_ERR_RCRD_XFRD_OFF 18
+#define CMPLT_HDR_ERR_RCRD_XFRD_MSK (0x1 << CMPLT_HDR_ERR_RCRD_XFRD_OFF)
+#define CMPLT_HDR_RSPNS_XFRD_OFF 19
+#define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
+#define CMPLT_HDR_IO_CFG_ERR_OFF 27
+#define CMPLT_HDR_IO_CFG_ERR_MSK (0x1 << CMPLT_HDR_IO_CFG_ERR_OFF)
+
+/* ITCT header */
+/* qw0 */
+#define ITCT_HDR_DEV_TYPE_OFF 0
+#define ITCT_HDR_DEV_TYPE_MSK (0x3ULL << ITCT_HDR_DEV_TYPE_OFF)
+#define ITCT_HDR_VALID_OFF 2
+#define ITCT_HDR_VALID_MSK (0x1ULL << ITCT_HDR_VALID_OFF)
+#define ITCT_HDR_AWT_CONTROL_OFF 4
+#define ITCT_HDR_AWT_CONTROL_MSK (0x1ULL << ITCT_HDR_AWT_CONTROL_OFF)
+#define ITCT_HDR_MAX_CONN_RATE_OFF 5
+#define ITCT_HDR_MAX_CONN_RATE_MSK (0xfULL << ITCT_HDR_MAX_CONN_RATE_OFF)
+#define ITCT_HDR_VALID_LINK_NUM_OFF 9
+#define ITCT_HDR_VALID_LINK_NUM_MSK (0xfULL << ITCT_HDR_VALID_LINK_NUM_OFF)
+#define ITCT_HDR_PORT_ID_OFF 13
+#define ITCT_HDR_PORT_ID_MSK (0x7ULL << ITCT_HDR_PORT_ID_OFF)
+#define ITCT_HDR_SMP_TIMEOUT_OFF 16
+#define ITCT_HDR_SMP_TIMEOUT_MSK (0xffffULL << ITCT_HDR_SMP_TIMEOUT_OFF)
+/* qw1 */
+#define ITCT_HDR_MAX_SAS_ADDR_OFF 0
+#define ITCT_HDR_MAX_SAS_ADDR_MSK (0xffffffffffffffff << \
+ ITCT_HDR_MAX_SAS_ADDR_OFF)
+/* qw2 */
+#define ITCT_HDR_IT_NEXUS_LOSS_TL_OFF 0
+#define ITCT_HDR_IT_NEXUS_LOSS_TL_MSK (0xffffULL << \
+ ITCT_HDR_IT_NEXUS_LOSS_TL_OFF)
+#define ITCT_HDR_BUS_INACTIVE_TL_OFF 16
+#define ITCT_HDR_BUS_INACTIVE_TL_MSK (0xffffULL << \
+ ITCT_HDR_BUS_INACTIVE_TL_OFF)
+#define ITCT_HDR_MAX_CONN_TL_OFF 32
+#define ITCT_HDR_MAX_CONN_TL_MSK (0xffffULL << \
+ ITCT_HDR_MAX_CONN_TL_OFF)
+#define ITCT_HDR_REJ_OPEN_TL_OFF 48
+#define ITCT_HDR_REJ_OPEN_TL_MSK (0xffffULL << \
+ ITCT_HDR_REJ_OPEN_TL_OFF)
+
+/* Err record header */
+#define ERR_HDR_DMA_TX_ERR_TYPE_OFF 0
+#define ERR_HDR_DMA_TX_ERR_TYPE_MSK (0xffff << ERR_HDR_DMA_TX_ERR_TYPE_OFF)
+#define ERR_HDR_DMA_RX_ERR_TYPE_OFF 16
+#define ERR_HDR_DMA_RX_ERR_TYPE_MSK (0xffff << ERR_HDR_DMA_RX_ERR_TYPE_OFF)
+
+struct hisi_sas_complete_v1_hdr {
+ __le32 data;
+};
+
+struct hisi_sas_err_record_v1 {
+ /* dw0 */
+ __le32 dma_err_type;
+
+ /* dw1 */
+ __le32 trans_tx_fail_type;
+
+ /* dw2 */
+ __le32 trans_rx_fail_type;
+
+ /* dw3 */
+ u32 rsvd;
+};
+
+enum {
+ HISI_SAS_PHY_BCAST_ACK = 0,
+ HISI_SAS_PHY_SL_PHY_ENABLED,
+ HISI_SAS_PHY_INT_ABNORMAL,
+ HISI_SAS_PHY_INT_NR
+};
+
+enum {
+ DMA_TX_ERR_BASE = 0x0,
+ DMA_RX_ERR_BASE = 0x100,
+ TRANS_TX_FAIL_BASE = 0x200,
+ TRANS_RX_FAIL_BASE = 0x300,
+
+ /* dma tx */
+ DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x0 */
+ DMA_TX_DIF_APP_ERR, /* 0x1 */
+ DMA_TX_DIF_RPP_ERR, /* 0x2 */
+ DMA_TX_AXI_BUS_ERR, /* 0x3 */
+ DMA_TX_DATA_SGL_OVERFLOW_ERR, /* 0x4 */
+ DMA_TX_DIF_SGL_OVERFLOW_ERR, /* 0x5 */
+ DMA_TX_UNEXP_XFER_RDY_ERR, /* 0x6 */
+ DMA_TX_XFER_RDY_OFFSET_ERR, /* 0x7 */
+ DMA_TX_DATA_UNDERFLOW_ERR, /* 0x8 */
+ DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR, /* 0x9 */
+
+ /* dma rx */
+ DMA_RX_BUFFER_ECC_ERR = DMA_RX_ERR_BASE, /* 0x100 */
+ DMA_RX_DIF_CRC_ERR, /* 0x101 */
+ DMA_RX_DIF_APP_ERR, /* 0x102 */
+ DMA_RX_DIF_RPP_ERR, /* 0x103 */
+ DMA_RX_RESP_BUFFER_OVERFLOW_ERR, /* 0x104 */
+ DMA_RX_AXI_BUS_ERR, /* 0x105 */
+ DMA_RX_DATA_SGL_OVERFLOW_ERR, /* 0x106 */
+ DMA_RX_DIF_SGL_OVERFLOW_ERR, /* 0x107 */
+ DMA_RX_DATA_OFFSET_ERR, /* 0x108 */
+ DMA_RX_UNEXP_RX_DATA_ERR, /* 0x109 */
+ DMA_RX_DATA_OVERFLOW_ERR, /* 0x10a */
+ DMA_RX_DATA_UNDERFLOW_ERR, /* 0x10b */
+ DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x10c */
+
+ /* trans tx */
+ TRANS_TX_RSVD0_ERR = TRANS_TX_FAIL_BASE, /* 0x200 */
+ TRANS_TX_PHY_NOT_ENABLE_ERR, /* 0x201 */
+ TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR, /* 0x202 */
+ TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR, /* 0x203 */
+ TRANS_TX_OPEN_REJCT_BY_OTHER_ERR, /* 0x204 */
+ TRANS_TX_RSVD1_ERR, /* 0x205 */
+ TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR, /* 0x206 */
+ TRANS_TX_OPEN_REJCT_STP_BUSY_ERR, /* 0x207 */
+ TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR, /* 0x208 */
+ TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR, /* 0x209 */
+ TRANS_TX_OPEN_REJCT_BAD_DEST_ERR, /* 0x20a */
+ TRANS_TX_OPEN_BREAK_RECEIVE_ERR, /* 0x20b */
+ TRANS_TX_LOW_PHY_POWER_ERR, /* 0x20c */
+ TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR, /* 0x20d */
+ TRANS_TX_OPEN_TIMEOUT_ERR, /* 0x20e */
+ TRANS_TX_OPEN_REJCT_NO_DEST_ERR, /* 0x20f */
+ TRANS_TX_OPEN_RETRY_ERR, /* 0x210 */
+ TRANS_TX_RSVD2_ERR, /* 0x211 */
+ TRANS_TX_BREAK_TIMEOUT_ERR, /* 0x212 */
+ TRANS_TX_BREAK_REQUEST_ERR, /* 0x213 */
+ TRANS_TX_BREAK_RECEIVE_ERR, /* 0x214 */
+ TRANS_TX_CLOSE_TIMEOUT_ERR, /* 0x215 */
+ TRANS_TX_CLOSE_NORMAL_ERR, /* 0x216 */
+ TRANS_TX_CLOSE_PHYRESET_ERR, /* 0x217 */
+ TRANS_TX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x218 */
+ TRANS_TX_WITH_CLOSE_COMINIT_ERR, /* 0x219 */
+ TRANS_TX_NAK_RECEIVE_ERR, /* 0x21a */
+ TRANS_TX_ACK_NAK_TIMEOUT_ERR, /* 0x21b */
+ TRANS_TX_CREDIT_TIMEOUT_ERR, /* 0x21c */
+ TRANS_TX_IPTT_CONFLICT_ERR, /* 0x21d */
+ TRANS_TX_TXFRM_TYPE_ERR, /* 0x21e */
+ TRANS_TX_TXSMP_LENGTH_ERR, /* 0x21f */
+
+ /* trans rx */
+ TRANS_RX_FRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x300 */
+ TRANS_RX_FRAME_DONE_ERR, /* 0x301 */
+ TRANS_RX_FRAME_ERRPRM_ERR, /* 0x302 */
+ TRANS_RX_FRAME_NO_CREDIT_ERR, /* 0x303 */
+ TRANS_RX_RSVD0_ERR, /* 0x304 */
+ TRANS_RX_FRAME_OVERRUN_ERR, /* 0x305 */
+ TRANS_RX_FRAME_NO_EOF_ERR, /* 0x306 */
+ TRANS_RX_LINK_BUF_OVERRUN_ERR, /* 0x307 */
+ TRANS_RX_BREAK_TIMEOUT_ERR, /* 0x308 */
+ TRANS_RX_BREAK_REQUEST_ERR, /* 0x309 */
+ TRANS_RX_BREAK_RECEIVE_ERR, /* 0x30a */
+ TRANS_RX_CLOSE_TIMEOUT_ERR, /* 0x30b */
+ TRANS_RX_CLOSE_NORMAL_ERR, /* 0x30c */
+ TRANS_RX_CLOSE_PHYRESET_ERR, /* 0x30d */
+ TRANS_RX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x30e */
+ TRANS_RX_WITH_CLOSE_COMINIT_ERR, /* 0x30f */
+ TRANS_RX_DATA_LENGTH0_ERR, /* 0x310 */
+ TRANS_RX_BAD_HASH_ERR, /* 0x311 */
+ TRANS_RX_XRDY_ZERO_ERR, /* 0x312 */
+ TRANS_RX_SSP_FRAME_LEN_ERR, /* 0x313 */
+ TRANS_RX_TRANS_RX_RSVD1_ERR, /* 0x314 */
+ TRANS_RX_NO_BALANCE_ERR, /* 0x315 */
+ TRANS_RX_TRANS_RX_RSVD2_ERR, /* 0x316 */
+ TRANS_RX_TRANS_RX_RSVD3_ERR, /* 0x317 */
+ TRANS_RX_BAD_FRAME_TYPE_ERR, /* 0x318 */
+ TRANS_RX_SMP_FRAME_LEN_ERR, /* 0x319 */
+ TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x31a */
+};
+
+#define HISI_SAS_PHY_MAX_INT_NR (HISI_SAS_PHY_INT_NR * HISI_SAS_MAX_PHYS)
+#define HISI_SAS_CQ_MAX_INT_NR (HISI_SAS_MAX_QUEUES)
+#define HISI_SAS_FATAL_INT_NR (2)
+
+#define HISI_SAS_MAX_INT_NR \
+ (HISI_SAS_PHY_MAX_INT_NR + HISI_SAS_CQ_MAX_INT_NR +\
+ HISI_SAS_FATAL_INT_NR)
+
+static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ return readl(regs);
+}
+
+static void hisi_sas_write32(struct hisi_hba *hisi_hba,
+ u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ writel(val, regs);
+}
+
+static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba,
+ int phy_no, u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ writel(val, regs);
+}
+
+static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
+ int phy_no, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ return readl(regs);
+}
+
+static void config_phy_opt_mode_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg &= ~PHY_CFG_DC_OPT_MSK;
+ cfg |= 1 << PHY_CFG_DC_OPT_OFF;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void config_tx_tfe_autoneg_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CONFIG2);
+
+ cfg &= ~PHY_CONFIG2_FORCE_TXDEEMPH_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CONFIG2, cfg);
+}
+
+static void config_id_frame_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct sas_identify_frame identify_frame;
+ u32 *identify_buffer;
+
+ memset(&identify_frame, 0, sizeof(identify_frame));
+ identify_frame.dev_type = SAS_END_DEVICE;
+ identify_frame.frame_type = 0;
+ identify_frame._un1 = 1;
+ identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
+ identify_frame.target_bits = SAS_PROTOCOL_NONE;
+ memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ identify_frame.phy_id = phy_no;
+ identify_buffer = (u32 *)(&identify_frame);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
+ __swab32(identify_buffer[0]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
+ __swab32(identify_buffer[1]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
+ __swab32(identify_buffer[2]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
+ __swab32(identify_buffer[3]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
+ __swab32(identify_buffer[4]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
+ __swab32(identify_buffer[5]));
+}
+
+static void setup_itct_v1_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *sas_dev)
+{
+ struct domain_device *device = sas_dev->sas_device;
+ struct device *dev = hisi_hba->dev;
+ u64 qw0, device_id = sas_dev->device_id;
+ struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
+ struct asd_sas_port *sas_port = device->port;
+ struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
+ u64 sas_addr;
+
+ memset(itct, 0, sizeof(*itct));
+
+ /* qw0 */
+ qw0 = 0;
+ switch (sas_dev->dev_type) {
+ case SAS_END_DEVICE:
+ case SAS_EDGE_EXPANDER_DEVICE:
+ case SAS_FANOUT_EXPANDER_DEVICE:
+ qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
+ break;
+ default:
+ dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
+ sas_dev->dev_type);
+ }
+
+ qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
+ (1 << ITCT_HDR_AWT_CONTROL_OFF) |
+ (device->max_linkrate << ITCT_HDR_MAX_CONN_RATE_OFF) |
+ (1 << ITCT_HDR_VALID_LINK_NUM_OFF) |
+ (port->id << ITCT_HDR_PORT_ID_OFF));
+ itct->qw0 = cpu_to_le64(qw0);
+
+ /* qw1 */
+ memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE);
+ itct->sas_addr = cpu_to_le64(__swab64(sas_addr));
+
+ /* qw2 */
+ itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_IT_NEXUS_LOSS_TL_OFF) |
+ (0xff00ULL << ITCT_HDR_BUS_INACTIVE_TL_OFF) |
+ (0xff00ULL << ITCT_HDR_MAX_CONN_TL_OFF) |
+ (0xff00ULL << ITCT_HDR_REJ_OPEN_TL_OFF));
+}
+
+static int clear_itct_v1_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *sas_dev)
+{
+ u64 dev_id = sas_dev->device_id;
+ struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
+ u64 qw0;
+ u32 reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
+
+ reg_val |= CFG_AGING_TIME_ITCT_REL_MSK;
+ hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
+
+ /* free itct */
+ udelay(1);
+ reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
+ reg_val &= ~CFG_AGING_TIME_ITCT_REL_MSK;
+ hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
+
+ qw0 = le64_to_cpu(itct->qw0);
+ qw0 &= ~ITCT_HDR_VALID_MSK;
+ itct->qw0 = cpu_to_le64(qw0);
+
+ return 0;
+}
+
+static int reset_hw_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+ unsigned long end_time;
+ u32 val;
+ struct device *dev = hisi_hba->dev;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ u32 phy_ctrl = hisi_sas_phy_read32(hisi_hba, i, PHY_CTRL);
+
+ phy_ctrl |= PHY_CTRL_RESET_MSK;
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, phy_ctrl);
+ }
+ msleep(1); /* It is safe to wait for 50us */
+
+ /* Ensure DMA tx & rx idle */
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ u32 dma_tx_status, dma_rx_status;
+
+ end_time = jiffies + msecs_to_jiffies(1000);
+
+ while (1) {
+ dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
+ DMA_TX_STATUS);
+ dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
+ DMA_RX_STATUS);
+
+ if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
+ !(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
+ break;
+
+ msleep(20);
+ if (time_after(jiffies, end_time))
+ return -EIO;
+ }
+ }
+
+ /* Ensure axi bus idle */
+ end_time = jiffies + msecs_to_jiffies(1000);
+ while (1) {
+ u32 axi_status =
+ hisi_sas_read32(hisi_hba, AXI_CFG);
+
+ if (axi_status == 0)
+ break;
+
+ msleep(20);
+ if (time_after(jiffies, end_time))
+ return -EIO;
+ }
+
+ if (ACPI_HANDLE(dev)) {
+ acpi_status s;
+
+ s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL);
+ if (ACPI_FAILURE(s)) {
+ dev_err(dev, "Reset failed\n");
+ return -EIO;
+ }
+ } else if (hisi_hba->ctrl) {
+ /* Apply reset and disable clock */
+ /* clk disable reg is offset by +4 bytes from clk enable reg */
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg,
+ RESET_VALUE);
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4,
+ RESET_VALUE);
+ msleep(1);
+ regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
+ if (RESET_VALUE != (val & RESET_VALUE)) {
+ dev_err(dev, "Reset failed\n");
+ return -EIO;
+ }
+
+ /* De-reset and enable clock */
+ /* deassert rst reg is offset by +4 bytes from assert reg */
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4,
+ RESET_VALUE);
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg,
+ RESET_VALUE);
+ msleep(1);
+ regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
+ if (val & RESET_VALUE) {
+ dev_err(dev, "De-reset failed\n");
+ return -EIO;
+ }
+ } else {
+ dev_warn(dev, "no reset method\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void init_reg_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ /* Global registers init*/
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
+ (u32)((1ULL << hisi_hba->queue_count) - 1));
+ hisi_sas_write32(hisi_hba, HGC_TRANS_TASK_CNT_LIMIT, 0x11);
+ hisi_sas_write32(hisi_hba, DEVICE_MSG_WORK_MODE, 0x1);
+ hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x1ff);
+ hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x401);
+ hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0x64);
+ hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x64);
+ hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x2710);
+ hisi_sas_write32(hisi_hba, REJECT_TO_OPEN_LIMIT_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x7a12);
+ hisi_sas_write32(hisi_hba, HGC_DFX_CFG2, 0x9c40);
+ hisi_sas_write32(hisi_hba, FIS_LIST_BADDR_L, 0x2);
+ hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x186a0);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 1);
+ hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffffffff);
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC_MSK, 0);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0);
+ hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 0x2);
+ hisi_sas_write32(hisi_hba, CFG_SAS_CONFIG, 0x22000000);
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x88a);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CONFIG2, 0x7c080);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_RATE_NEGO, 0x415ee00);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_PCN, 0x80a80000);
+ hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
+ hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
+ hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0);
+ hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x13f0a);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 3);
+ hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 8);
+ }
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ /* Delivery queue */
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+
+ /* Completion queue */
+ hisi_sas_write32(hisi_hba,
+ COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba,
+ COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+ }
+
+ /* itct */
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->itct_dma));
+
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->itct_dma));
+
+ /* iost */
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->iost_dma));
+
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->iost_dma));
+
+ /* breakpoint */
+ hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_LO,
+ lower_32_bits(hisi_hba->breakpoint_dma));
+
+ hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_HI,
+ upper_32_bits(hisi_hba->breakpoint_dma));
+}
+
+static int hw_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ rc = reset_hw_v1_hw(hisi_hba);
+ if (rc) {
+ dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc);
+ return rc;
+ }
+
+ msleep(100);
+ init_reg_v1_hw(hisi_hba);
+
+ return 0;
+}
+
+static void enable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg |= PHY_CFG_ENA_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void disable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg &= ~PHY_CFG_ENA_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void start_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ config_id_frame_v1_hw(hisi_hba, phy_no);
+ config_phy_opt_mode_v1_hw(hisi_hba, phy_no);
+ config_tx_tfe_autoneg_v1_hw(hisi_hba, phy_no);
+ enable_phy_v1_hw(hisi_hba, phy_no);
+}
+
+static void phy_hard_reset_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+ msleep(100);
+ hisi_sas_phy_enable(hisi_hba, phy_no, 1);
+}
+
+static void start_phys_v1_hw(struct timer_list *t)
+{
+ struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x12a);
+ hisi_sas_phy_enable(hisi_hba, i, 1);
+ }
+}
+
+static void phys_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+ struct timer_list *timer = &hisi_hba->timer;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a);
+ hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK);
+ }
+
+ timer_setup(timer, start_phys_v1_hw, 0);
+ mod_timer(timer, jiffies + HZ);
+}
+
+static void sl_notify_ssp_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 sl_control;
+
+ sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+ msleep(1);
+ sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+}
+
+static enum sas_linkrate phy_get_max_linkrate_v1_hw(void)
+{
+ return SAS_LINK_RATE_6_0_GBPS;
+}
+
+static void phy_set_linkrate_v1_hw(struct hisi_hba *hisi_hba, int phy_no,
+ struct sas_phy_linkrates *r)
+{
+ enum sas_linkrate max = r->maximum_linkrate;
+ u32 prog_phy_link_rate = 0x800;
+
+ prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
+ prog_phy_link_rate);
+}
+
+static int get_wideport_bitmap_v1_hw(struct hisi_hba *hisi_hba, int port_id)
+{
+ int i, bitmap = 0;
+ u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+
+ for (i = 0; i < hisi_hba->n_phy; i++)
+ if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
+ bitmap |= 1 << i;
+
+ return bitmap;
+}
+
+/* DQ lock must be taken here */
+static void start_delivery_v1_hw(struct hisi_sas_dq *dq)
+{
+ struct hisi_hba *hisi_hba = dq->hisi_hba;
+ struct hisi_sas_slot *s, *s1, *s2 = NULL;
+ int dlvry_queue = dq->id;
+ int wp;
+
+ list_for_each_entry_safe(s, s1, &dq->list, delivery) {
+ if (!s->ready)
+ break;
+ s2 = s;
+ list_del(&s->delivery);
+ }
+
+ if (!s2)
+ return;
+
+ /*
+ * Ensure that memories for slots built on other CPUs is observed.
+ */
+ smp_rmb();
+ wp = (s2->dlvry_queue_slot + 1) % HISI_SAS_QUEUE_SLOTS;
+
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), wp);
+}
+
+static void prep_prd_sge_v1_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ struct hisi_sas_cmd_hdr *hdr,
+ struct scatterlist *scatter,
+ int n_elem)
+{
+ struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(scatter, sg, n_elem, i) {
+ struct hisi_sas_sge *entry = &sge_page->sge[i];
+
+ entry->addr = cpu_to_le64(sg_dma_address(sg));
+ entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
+ entry->data_len = cpu_to_le32(sg_dma_len(sg));
+ entry->data_off = 0;
+ }
+
+ hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
+
+ hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
+}
+
+static void prep_smp_v1_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_port *port = slot->port;
+ struct scatterlist *sg_req;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ dma_addr_t req_dma_addr;
+ unsigned int req_len;
+
+ /* req */
+ sg_req = &task->smp_task.smp_req;
+ req_len = sg_dma_len(sg_req);
+ req_dma_addr = sg_dma_address(sg_req);
+
+ /* create header */
+ /* dw0 */
+ hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
+ (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
+ (1 << CMD_HDR_MODE_OFF) | /* ini mode */
+ (2 << CMD_HDR_CMD_OFF)); /* smp */
+
+ /* map itct entry */
+ hdr->dw1 = cpu_to_le32(sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF);
+
+ /* dw2 */
+ hdr->dw2 = cpu_to_le32((((req_len-4)/4) << CMD_HDR_CFL_OFF) |
+ (HISI_SAS_MAX_SMP_RESP_SZ/4 <<
+ CMD_HDR_MRFL_OFF));
+
+ hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
+
+ hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+}
+
+static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_sas_port *port = slot->port;
+ struct sas_ssp_task *ssp_task = &task->ssp_task;
+ struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+ struct hisi_sas_tmf_task *tmf = slot->tmf;
+ int has_data = 0, priority = !!tmf;
+ u8 *buf_cmd, fburst = 0;
+ u32 dw1, dw2;
+
+ /* create header */
+ hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
+ (0x2 << CMD_HDR_TLR_CTRL_OFF) |
+ (port->id << CMD_HDR_PORT_OFF) |
+ (priority << CMD_HDR_PRIORITY_OFF) |
+ (1 << CMD_HDR_MODE_OFF) | /* ini mode */
+ (1 << CMD_HDR_CMD_OFF)); /* ssp */
+
+ dw1 = 1 << CMD_HDR_VERIFY_DTL_OFF;
+
+ if (tmf) {
+ dw1 |= 3 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+ } else {
+ switch (scsi_cmnd->sc_data_direction) {
+ case DMA_TO_DEVICE:
+ dw1 |= 2 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+ has_data = 1;
+ break;
+ case DMA_FROM_DEVICE:
+ dw1 |= 1 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+ has_data = 1;
+ break;
+ default:
+ dw1 |= 0 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+ }
+ }
+
+ /* map itct entry */
+ dw1 |= sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF;
+ hdr->dw1 = cpu_to_le32(dw1);
+
+ if (tmf) {
+ dw2 = ((sizeof(struct ssp_tmf_iu) +
+ sizeof(struct ssp_frame_hdr)+3)/4) <<
+ CMD_HDR_CFL_OFF;
+ } else {
+ dw2 = ((sizeof(struct ssp_command_iu) +
+ sizeof(struct ssp_frame_hdr)+3)/4) <<
+ CMD_HDR_CFL_OFF;
+ }
+
+ dw2 |= (HISI_SAS_MAX_SSP_RESP_SZ/4) << CMD_HDR_MRFL_OFF;
+
+ hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
+
+ if (has_data)
+ prep_prd_sge_v1_hw(hisi_hba, slot, hdr, task->scatter,
+ slot->n_elem);
+
+ hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
+ hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+
+ buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
+ sizeof(struct ssp_frame_hdr);
+ if (task->ssp_task.enable_first_burst) {
+ fburst = (1 << 7);
+ dw2 |= 1 << CMD_HDR_FIRST_BURST_OFF;
+ }
+ hdr->dw2 = cpu_to_le32(dw2);
+
+ memcpy(buf_cmd, &task->ssp_task.LUN, 8);
+ if (!tmf) {
+ buf_cmd[9] = fburst | task->ssp_task.task_attr |
+ (task->ssp_task.task_prio << 3);
+ memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
+ task->ssp_task.cmd->cmd_len);
+ } else {
+ buf_cmd[10] = tmf->tmf;
+ switch (tmf->tmf) {
+ case TMF_ABORT_TASK:
+ case TMF_QUERY_TASK:
+ buf_cmd[12] =
+ (tmf->tag_of_task_to_be_managed >> 8) & 0xff;
+ buf_cmd[13] =
+ tmf->tag_of_task_to_be_managed & 0xff;
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+/* by default, task resp is complete */
+static void slot_err_v1_hw(struct hisi_hba *hisi_hba,
+ struct sas_task *task,
+ struct hisi_sas_slot *slot)
+{
+ struct task_status_struct *ts = &task->task_status;
+ struct hisi_sas_err_record_v1 *err_record =
+ hisi_sas_status_buf_addr_mem(slot);
+ struct device *dev = hisi_hba->dev;
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SSP:
+ {
+ int error = -1;
+ u32 dma_err_type = le32_to_cpu(err_record->dma_err_type);
+ u32 dma_tx_err_type = ((dma_err_type &
+ ERR_HDR_DMA_TX_ERR_TYPE_MSK)) >>
+ ERR_HDR_DMA_TX_ERR_TYPE_OFF;
+ u32 dma_rx_err_type = ((dma_err_type &
+ ERR_HDR_DMA_RX_ERR_TYPE_MSK)) >>
+ ERR_HDR_DMA_RX_ERR_TYPE_OFF;
+ u32 trans_tx_fail_type =
+ le32_to_cpu(err_record->trans_tx_fail_type);
+ u32 trans_rx_fail_type =
+ le32_to_cpu(err_record->trans_rx_fail_type);
+
+ if (dma_tx_err_type) {
+ /* dma tx err */
+ error = ffs(dma_tx_err_type)
+ - 1 + DMA_TX_ERR_BASE;
+ } else if (dma_rx_err_type) {
+ /* dma rx err */
+ error = ffs(dma_rx_err_type)
+ - 1 + DMA_RX_ERR_BASE;
+ } else if (trans_tx_fail_type) {
+ /* trans tx err */
+ error = ffs(trans_tx_fail_type)
+ - 1 + TRANS_TX_FAIL_BASE;
+ } else if (trans_rx_fail_type) {
+ /* trans rx err */
+ error = ffs(trans_rx_fail_type)
+ - 1 + TRANS_RX_FAIL_BASE;
+ }
+
+ switch (error) {
+ case DMA_TX_DATA_UNDERFLOW_ERR:
+ case DMA_RX_DATA_UNDERFLOW_ERR:
+ {
+ ts->residual = 0;
+ ts->stat = SAS_DATA_UNDERRUN;
+ break;
+ }
+ case DMA_TX_DATA_SGL_OVERFLOW_ERR:
+ case DMA_TX_DIF_SGL_OVERFLOW_ERR:
+ case DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR:
+ case DMA_RX_DATA_OVERFLOW_ERR:
+ case TRANS_RX_FRAME_OVERRUN_ERR:
+ case TRANS_RX_LINK_BUF_OVERRUN_ERR:
+ {
+ ts->stat = SAS_DATA_OVERRUN;
+ ts->residual = 0;
+ break;
+ }
+ case TRANS_TX_PHY_NOT_ENABLE_ERR:
+ {
+ ts->stat = SAS_PHY_DOWN;
+ break;
+ }
+ case TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR:
+ case TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR:
+ case TRANS_TX_OPEN_REJCT_BY_OTHER_ERR:
+ case TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR:
+ case TRANS_TX_OPEN_REJCT_STP_BUSY_ERR:
+ case TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR:
+ case TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR:
+ case TRANS_TX_OPEN_REJCT_BAD_DEST_ERR:
+ case TRANS_TX_OPEN_BREAK_RECEIVE_ERR:
+ case TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR:
+ case TRANS_TX_OPEN_REJCT_NO_DEST_ERR:
+ case TRANS_TX_OPEN_RETRY_ERR:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_UNKNOWN;
+ break;
+ }
+ case TRANS_TX_OPEN_TIMEOUT_ERR:
+ {
+ ts->stat = SAS_OPEN_TO;
+ break;
+ }
+ case TRANS_TX_NAK_RECEIVE_ERR:
+ case TRANS_TX_ACK_NAK_TIMEOUT_ERR:
+ {
+ ts->stat = SAS_NAK_R_ERR;
+ break;
+ }
+ case TRANS_TX_CREDIT_TIMEOUT_ERR:
+ case TRANS_TX_CLOSE_NORMAL_ERR:
+ {
+ /* This will request a retry */
+ ts->stat = SAS_QUEUE_FULL;
+ slot->abort = 1;
+ break;
+ }
+ default:
+ {
+ ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ break;
+ }
+ }
+ }
+ break;
+ case SAS_PROTOCOL_SMP:
+ ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ break;
+
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ {
+ dev_err(dev, "slot err: SATA/STP not supported\n");
+ }
+ break;
+ default:
+ break;
+ }
+
+}
+
+static void slot_complete_v1_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_device *sas_dev;
+ struct device *dev = hisi_hba->dev;
+ struct task_status_struct *ts;
+ struct domain_device *device;
+ struct hisi_sas_complete_v1_hdr *complete_queue =
+ hisi_hba->complete_hdr[slot->cmplt_queue];
+ struct hisi_sas_complete_v1_hdr *complete_hdr;
+ unsigned long flags;
+ u32 cmplt_hdr_data;
+
+ complete_hdr = &complete_queue[slot->cmplt_queue_slot];
+ cmplt_hdr_data = le32_to_cpu(complete_hdr->data);
+
+ if (unlikely(!task || !task->lldd_task || !task->dev))
+ return;
+
+ ts = &task->task_status;
+ device = task->dev;
+ sas_dev = device->lldd_dev;
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ task->task_state_flags &=
+ ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
+ task->task_state_flags |= SAS_TASK_STATE_DONE;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+ memset(ts, 0, sizeof(*ts));
+ ts->resp = SAS_TASK_COMPLETE;
+
+ if (unlikely(!sas_dev)) {
+ dev_dbg(dev, "slot complete: port has no device\n");
+ ts->stat = SAS_PHY_DOWN;
+ goto out;
+ }
+
+ if (cmplt_hdr_data & CMPLT_HDR_IO_CFG_ERR_MSK) {
+ u32 info_reg = hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_DQ_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq IPTT err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_TYPE_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq type err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_FORCE_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq force phy err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_PHY_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq phy id err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_ABORT_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq abort flag err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_IPTT_OF_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq IPTT or ICT err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_SSP_ERR_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq SSP frame type err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ if (info_reg & HGC_INVLD_DQE_INFO_OFL_MSK)
+ dev_err(dev, "slot complete: [%d:%d] has dq order frame len err\n",
+ slot->cmplt_queue, slot->cmplt_queue_slot);
+
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_UNKNOWN;
+ goto out;
+ }
+
+ if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK &&
+ !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK)) {
+
+ slot_err_v1_hw(hisi_hba, task, slot);
+ if (unlikely(slot->abort)) {
+ sas_task_abort(task);
+ return;
+ }
+ goto out;
+ }
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SSP:
+ {
+ struct hisi_sas_status_buffer *status_buffer =
+ hisi_sas_status_buf_addr_mem(slot);
+ struct ssp_response_iu *iu = (struct ssp_response_iu *)
+ &status_buffer->iu[0];
+
+ sas_ssp_task_response(dev, task, iu);
+ break;
+ }
+ case SAS_PROTOCOL_SMP:
+ {
+ struct scatterlist *sg_resp = &task->smp_task.smp_resp;
+ void *to = page_address(sg_page(sg_resp));
+
+ ts->stat = SAS_SAM_STAT_GOOD;
+
+ dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
+ DMA_TO_DEVICE);
+ memcpy(to + sg_resp->offset,
+ hisi_sas_status_buf_addr_mem(slot) +
+ sizeof(struct hisi_sas_err_record),
+ sg_resp->length);
+ break;
+ }
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ dev_err(dev, "slot complete: SATA/STP not supported\n");
+ break;
+
+ default:
+ ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ break;
+ }
+
+ if (!slot->port->port_attached) {
+ dev_err(dev, "slot complete: port %d has removed\n",
+ slot->port->sas_port.id);
+ ts->stat = SAS_PHY_DOWN;
+ }
+
+out:
+ hisi_sas_slot_task_free(hisi_hba, task, slot);
+
+ if (task->task_done)
+ task->task_done(task);
+}
+
+/* Interrupts */
+static irqreturn_t int_phyup_v1_hw(int irq_no, void *p)
+{
+ struct hisi_sas_phy *phy = p;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct device *dev = hisi_hba->dev;
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ int i, phy_no = sas_phy->id;
+ u32 irq_value, context, port_id, link_rate;
+ u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
+ struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
+ irqreturn_t res = IRQ_HANDLED;
+ unsigned long flags;
+
+ irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
+ if (!(irq_value & CHL_INT2_SL_PHY_ENA_MSK)) {
+ dev_dbg(dev, "phyup: irq_value = %x not set enable bit\n",
+ irq_value);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
+ if (context & 1 << phy_no) {
+ dev_err(dev, "phyup: phy%d SATA attached equipment\n",
+ phy_no);
+ goto end;
+ }
+
+ port_id = (hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA) >> (4 * phy_no))
+ & 0xf;
+ if (port_id == 0xf) {
+ dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ for (i = 0; i < 6; i++) {
+ u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
+ RX_IDAF_DWORD0 + (i * 4));
+ frame_rcvd[i] = __swab32(idaf);
+ }
+
+ /* Get the linkrate */
+ link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
+ link_rate = (link_rate >> (phy_no * 4)) & 0xf;
+ sas_phy->linkrate = link_rate;
+ sas_phy->oob_mode = SAS_OOB_MODE;
+ memcpy(sas_phy->attached_sas_addr,
+ &id->sas_addr, SAS_ADDR_SIZE);
+ dev_info(dev, "phyup: phy%d link_rate=%d\n",
+ phy_no, link_rate);
+ phy->port_id = port_id;
+ phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+ phy->phy_type |= PORT_TYPE_SAS;
+ phy->phy_attached = 1;
+ phy->identify.device_type = id->dev_type;
+ phy->frame_rcvd_size = sizeof(struct sas_identify_frame);
+ if (phy->identify.device_type == SAS_END_DEVICE)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SSP;
+ else if (phy->identify.device_type != SAS_PHY_UNUSED)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SMP;
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
+
+ spin_lock_irqsave(&phy->lock, flags);
+ if (phy->reset_completion) {
+ phy->in_reset = 0;
+ complete(phy->reset_completion);
+ }
+ spin_unlock_irqrestore(&phy->lock, flags);
+
+end:
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
+ CHL_INT2_SL_PHY_ENA_MSK);
+
+ if (irq_value & CHL_INT2_SL_PHY_ENA_MSK) {
+ u32 chl_int0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
+
+ chl_int0 &= ~CHL_INT0_PHYCTRL_NOTRDY_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, chl_int0);
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3ce3ee);
+ }
+
+ return res;
+}
+
+static irqreturn_t int_bcast_v1_hw(int irq, void *p)
+{
+ struct hisi_sas_phy *phy = p;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct device *dev = hisi_hba->dev;
+ int phy_no = sas_phy->id;
+ u32 irq_value;
+ irqreturn_t res = IRQ_HANDLED;
+
+ irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
+
+ if (!(irq_value & CHL_INT2_SL_RX_BC_ACK_MSK)) {
+ dev_err(dev, "bcast: irq_value = %x not set enable bit\n",
+ irq_value);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
+ sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
+
+end:
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
+ CHL_INT2_SL_RX_BC_ACK_MSK);
+
+ return res;
+}
+
+static irqreturn_t int_abnormal_v1_hw(int irq, void *p)
+{
+ struct hisi_sas_phy *phy = p;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct device *dev = hisi_hba->dev;
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ u32 irq_value, irq_mask_old;
+ int phy_no = sas_phy->id;
+
+ /* mask_int0 */
+ irq_mask_old = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3fffff);
+
+ /* read int0 */
+ irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
+
+ if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK) {
+ u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+
+ hisi_sas_phy_down(hisi_hba, phy_no,
+ (phy_state & 1 << phy_no) ? 1 : 0);
+ }
+
+ if (irq_value & CHL_INT0_ID_TIMEOUT_MSK)
+ dev_dbg(dev, "abnormal: ID_TIMEOUT phy%d identify timeout\n",
+ phy_no);
+
+ if (irq_value & CHL_INT0_DWS_LOST_MSK)
+ dev_dbg(dev, "abnormal: DWS_LOST phy%d dws lost\n", phy_no);
+
+ if (irq_value & CHL_INT0_SN_FAIL_NGR_MSK)
+ dev_dbg(dev, "abnormal: SN_FAIL_NGR phy%d sn fail ngr\n",
+ phy_no);
+
+ if (irq_value & CHL_INT0_SL_IDAF_FAIL_MSK ||
+ irq_value & CHL_INT0_SL_OPAF_FAIL_MSK)
+ dev_dbg(dev, "abnormal: SL_ID/OPAF_FAIL phy%d check adr frm err\n",
+ phy_no);
+
+ if (irq_value & CHL_INT0_SL_PS_FAIL_OFF)
+ dev_dbg(dev, "abnormal: SL_PS_FAIL phy%d fail\n", phy_no);
+
+ /* write to zero */
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, irq_value);
+
+ if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK)
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
+ 0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
+ else
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
+ irq_mask_old);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cq_interrupt_v1_hw(int irq, void *p)
+{
+ struct hisi_sas_cq *cq = p;
+ struct hisi_hba *hisi_hba = cq->hisi_hba;
+ struct hisi_sas_slot *slot;
+ int queue = cq->id;
+ struct hisi_sas_complete_v1_hdr *complete_queue =
+ (struct hisi_sas_complete_v1_hdr *)
+ hisi_hba->complete_hdr[queue];
+ u32 rd_point = cq->rd_point, wr_point;
+
+ spin_lock(&hisi_hba->lock);
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
+ wr_point = hisi_sas_read32(hisi_hba,
+ COMPL_Q_0_WR_PTR + (0x14 * queue));
+
+ while (rd_point != wr_point) {
+ struct hisi_sas_complete_v1_hdr *complete_hdr;
+ int idx;
+ u32 cmplt_hdr_data;
+
+ complete_hdr = &complete_queue[rd_point];
+ cmplt_hdr_data = le32_to_cpu(complete_hdr->data);
+ idx = (cmplt_hdr_data & CMPLT_HDR_IPTT_MSK) >>
+ CMPLT_HDR_IPTT_OFF;
+ slot = &hisi_hba->slot_info[idx];
+
+ /* The completion queue and queue slot index are not
+ * necessarily the same as the delivery queue and
+ * queue slot index.
+ */
+ slot->cmplt_queue_slot = rd_point;
+ slot->cmplt_queue = queue;
+ slot_complete_v1_hw(hisi_hba, slot);
+
+ if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
+ rd_point = 0;
+ }
+
+ /* update rd_point */
+ cq->rd_point = rd_point;
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
+ spin_unlock(&hisi_hba->lock);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t fatal_ecc_int_v1_hw(int irq, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ struct device *dev = hisi_hba->dev;
+ u32 ecc_int = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
+
+ if (ecc_int & SAS_ECC_INTR_DQ_ECC1B_MSK) {
+ u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
+
+ panic("%s: Fatal DQ 1b ECC interrupt (0x%x)\n",
+ dev_name(dev), ecc_err);
+ }
+
+ if (ecc_int & SAS_ECC_INTR_DQ_ECCBAD_MSK) {
+ u32 addr = (hisi_sas_read32(hisi_hba, HGC_DQ_ECC_ADDR) &
+ HGC_DQ_ECC_ADDR_BAD_MSK) >>
+ HGC_DQ_ECC_ADDR_BAD_OFF;
+
+ panic("%s: Fatal DQ RAM ECC interrupt @ 0x%08x\n",
+ dev_name(dev), addr);
+ }
+
+ if (ecc_int & SAS_ECC_INTR_IOST_ECC1B_MSK) {
+ u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
+
+ panic("%s: Fatal IOST 1b ECC interrupt (0x%x)\n",
+ dev_name(dev), ecc_err);
+ }
+
+ if (ecc_int & SAS_ECC_INTR_IOST_ECCBAD_MSK) {
+ u32 addr = (hisi_sas_read32(hisi_hba, HGC_IOST_ECC_ADDR) &
+ HGC_IOST_ECC_ADDR_BAD_MSK) >>
+ HGC_IOST_ECC_ADDR_BAD_OFF;
+
+ panic("%s: Fatal IOST RAM ECC interrupt @ 0x%08x\n",
+ dev_name(dev), addr);
+ }
+
+ if (ecc_int & SAS_ECC_INTR_ITCT_ECCBAD_MSK) {
+ u32 addr = (hisi_sas_read32(hisi_hba, HGC_ITCT_ECC_ADDR) &
+ HGC_ITCT_ECC_ADDR_BAD_MSK) >>
+ HGC_ITCT_ECC_ADDR_BAD_OFF;
+
+ panic("%s: Fatal TCT RAM ECC interrupt @ 0x%08x\n",
+ dev_name(dev), addr);
+ }
+
+ if (ecc_int & SAS_ECC_INTR_ITCT_ECC1B_MSK) {
+ u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
+
+ panic("%s: Fatal ITCT 1b ECC interrupt (0x%x)\n",
+ dev_name(dev), ecc_err);
+ }
+
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR, ecc_int | 0x3f);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t fatal_axi_int_v1_hw(int irq, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ struct device *dev = hisi_hba->dev;
+ u32 axi_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC2);
+ u32 axi_info = hisi_sas_read32(hisi_hba, HGC_AXI_FIFO_ERR_INFO);
+
+ if (axi_int & ENT_INT_SRC2_DQ_CFG_ERR_MSK)
+ panic("%s: Fatal DQ_CFG_ERR interrupt (0x%x)\n",
+ dev_name(dev), axi_info);
+
+ if (axi_int & ENT_INT_SRC2_CQ_CFG_ERR_MSK)
+ panic("%s: Fatal CQ_CFG_ERR interrupt (0x%x)\n",
+ dev_name(dev), axi_info);
+
+ if (axi_int & ENT_INT_SRC2_AXI_WRONG_INT_MSK)
+ panic("%s: Fatal AXI_WRONG_INT interrupt (0x%x)\n",
+ dev_name(dev), axi_info);
+
+ if (axi_int & ENT_INT_SRC2_AXI_OVERLF_INT_MSK)
+ panic("%s: Fatal AXI_OVERLF_INT incorrect interrupt (0x%x)\n",
+ dev_name(dev), axi_info);
+
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC2, axi_int | 0x30000000);
+
+ return IRQ_HANDLED;
+}
+
+static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
+ int_bcast_v1_hw,
+ int_phyup_v1_hw,
+ int_abnormal_v1_hw
+};
+
+static irq_handler_t fatal_interrupts[HISI_SAS_MAX_QUEUES] = {
+ fatal_ecc_int_v1_hw,
+ fatal_axi_int_v1_hw
+};
+
+static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+ struct platform_device *pdev = hisi_hba->platform_dev;
+ struct device *dev = &pdev->dev;
+ int i, j, irq, rc, idx;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+
+ idx = i * HISI_SAS_PHY_INT_NR;
+ for (j = 0; j < HISI_SAS_PHY_INT_NR; j++, idx++) {
+ irq = platform_get_irq(pdev, idx);
+ if (irq < 0) {
+ dev_err(dev, "irq init: fail map phy interrupt %d\n",
+ idx);
+ return irq;
+ }
+
+ rc = devm_request_irq(dev, irq, phy_interrupts[j], 0,
+ DRV_NAME " phy", phy);
+ if (rc) {
+ dev_err(dev, "irq init: could not request phy interrupt %d, rc=%d\n",
+ irq, rc);
+ return rc;
+ }
+ }
+ }
+
+ idx = hisi_hba->n_phy * HISI_SAS_PHY_INT_NR;
+ for (i = 0; i < hisi_hba->queue_count; i++, idx++) {
+ irq = platform_get_irq(pdev, idx);
+ if (irq < 0) {
+ dev_err(dev, "irq init: could not map cq interrupt %d\n",
+ idx);
+ return irq;
+ }
+
+ rc = devm_request_irq(dev, irq, cq_interrupt_v1_hw, 0,
+ DRV_NAME " cq", &hisi_hba->cq[i]);
+ if (rc) {
+ dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
+ irq, rc);
+ return rc;
+ }
+ }
+
+ idx = (hisi_hba->n_phy * HISI_SAS_PHY_INT_NR) + hisi_hba->queue_count;
+ for (i = 0; i < HISI_SAS_FATAL_INT_NR; i++, idx++) {
+ irq = platform_get_irq(pdev, idx);
+ if (irq < 0) {
+ dev_err(dev, "irq init: could not map fatal interrupt %d\n",
+ idx);
+ return irq;
+ }
+
+ rc = devm_request_irq(dev, irq, fatal_interrupts[i], 0,
+ DRV_NAME " fatal", hisi_hba);
+ if (rc) {
+ dev_err(dev, "irq init: could not request fatal interrupt %d, rc=%d\n",
+ irq, rc);
+ return rc;
+ }
+ }
+
+ hisi_hba->cq_nvecs = hisi_hba->queue_count;
+
+ return 0;
+}
+
+static int interrupt_openall_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+ u32 val;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ /* Clear interrupt status */
+ val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT0);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, val);
+ val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT1);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, val);
+ val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT2);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, val);
+
+ /* Unmask interrupt */
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK, 0x3ce3ee);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0x17fff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8000012a);
+
+ /* bypass chip bug mask abnormal intr */
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK,
+ 0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
+ }
+
+ return 0;
+}
+
+static int hisi_sas_v1_init(struct hisi_hba *hisi_hba)
+{
+ int rc;
+
+ rc = hw_init_v1_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ rc = interrupt_init_v1_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ rc = interrupt_openall_v1_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ return 0;
+}
+
+static struct device_attribute *host_attrs_v1_hw[] = {
+ &dev_attr_phy_event_threshold,
+ NULL
+};
+
+static struct scsi_host_template sht_v1_hw = {
+ .name = DRV_NAME,
+ .proc_name = DRV_NAME,
+ .module = THIS_MODULE,
+ .queuecommand = sas_queuecommand,
+ .dma_need_drain = ata_scsi_dma_need_drain,
+ .target_alloc = sas_target_alloc,
+ .slave_configure = hisi_sas_slave_configure,
+ .scan_finished = hisi_sas_scan_finished,
+ .scan_start = hisi_sas_scan_start,
+ .change_queue_depth = sas_change_queue_depth,
+ .bios_param = sas_bios_param,
+ .this_id = -1,
+ .sg_tablesize = HISI_SAS_SGE_PAGE_CNT,
+ .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
+ .eh_device_reset_handler = sas_eh_device_reset_handler,
+ .eh_target_reset_handler = sas_eh_target_reset_handler,
+ .slave_alloc = sas_slave_alloc,
+ .target_destroy = sas_target_destroy,
+ .ioctl = sas_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = sas_ioctl,
+#endif
+ .shost_attrs = host_attrs_v1_hw,
+ .host_reset = hisi_sas_host_reset,
+};
+
+static const struct hisi_sas_hw hisi_sas_v1_hw = {
+ .hw_init = hisi_sas_v1_init,
+ .setup_itct = setup_itct_v1_hw,
+ .sl_notify_ssp = sl_notify_ssp_v1_hw,
+ .clear_itct = clear_itct_v1_hw,
+ .prep_smp = prep_smp_v1_hw,
+ .prep_ssp = prep_ssp_v1_hw,
+ .start_delivery = start_delivery_v1_hw,
+ .phys_init = phys_init_v1_hw,
+ .phy_start = start_phy_v1_hw,
+ .phy_disable = disable_phy_v1_hw,
+ .phy_hard_reset = phy_hard_reset_v1_hw,
+ .phy_set_linkrate = phy_set_linkrate_v1_hw,
+ .phy_get_max_linkrate = phy_get_max_linkrate_v1_hw,
+ .get_wideport_bitmap = get_wideport_bitmap_v1_hw,
+ .complete_hdr_size = sizeof(struct hisi_sas_complete_v1_hdr),
+ .sht = &sht_v1_hw,
+};
+
+static int hisi_sas_v1_probe(struct platform_device *pdev)
+{
+ return hisi_sas_probe(pdev, &hisi_sas_v1_hw);
+}
+
+static int hisi_sas_v1_remove(struct platform_device *pdev)
+{
+ return hisi_sas_remove(pdev);
+}
+
+static const struct of_device_id sas_v1_of_match[] = {
+ { .compatible = "hisilicon,hip05-sas-v1",},
+ {},
+};
+MODULE_DEVICE_TABLE(of, sas_v1_of_match);
+
+static const struct acpi_device_id sas_v1_acpi_match[] = {
+ { "HISI0161", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(acpi, sas_v1_acpi_match);
+
+static struct platform_driver hisi_sas_v1_driver = {
+ .probe = hisi_sas_v1_probe,
+ .remove = hisi_sas_v1_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = sas_v1_of_match,
+ .acpi_match_table = ACPI_PTR(sas_v1_acpi_match),
+ },
+};
+
+module_platform_driver(hisi_sas_v1_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
+MODULE_DESCRIPTION("HISILICON SAS controller v1 hw driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
new file mode 100644
index 000000000..f6e9114de
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -0,0 +1,3645 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2016 Linaro Ltd.
+ * Copyright (c) 2016 Hisilicon Limited.
+ */
+
+#include "hisi_sas.h"
+#define DRV_NAME "hisi_sas_v2_hw"
+
+/* global registers need init*/
+#define DLVRY_QUEUE_ENABLE 0x0
+#define IOST_BASE_ADDR_LO 0x8
+#define IOST_BASE_ADDR_HI 0xc
+#define ITCT_BASE_ADDR_LO 0x10
+#define ITCT_BASE_ADDR_HI 0x14
+#define IO_BROKEN_MSG_ADDR_LO 0x18
+#define IO_BROKEN_MSG_ADDR_HI 0x1c
+#define PHY_CONTEXT 0x20
+#define PHY_STATE 0x24
+#define PHY_PORT_NUM_MA 0x28
+#define PORT_STATE 0x2c
+#define PORT_STATE_PHY8_PORT_NUM_OFF 16
+#define PORT_STATE_PHY8_PORT_NUM_MSK (0xf << PORT_STATE_PHY8_PORT_NUM_OFF)
+#define PORT_STATE_PHY8_CONN_RATE_OFF 20
+#define PORT_STATE_PHY8_CONN_RATE_MSK (0xf << PORT_STATE_PHY8_CONN_RATE_OFF)
+#define PHY_CONN_RATE 0x30
+#define HGC_TRANS_TASK_CNT_LIMIT 0x38
+#define AXI_AHB_CLK_CFG 0x3c
+#define ITCT_CLR 0x44
+#define ITCT_CLR_EN_OFF 16
+#define ITCT_CLR_EN_MSK (0x1 << ITCT_CLR_EN_OFF)
+#define ITCT_DEV_OFF 0
+#define ITCT_DEV_MSK (0x7ff << ITCT_DEV_OFF)
+#define AXI_USER1 0x48
+#define AXI_USER2 0x4c
+#define IO_SATA_BROKEN_MSG_ADDR_LO 0x58
+#define IO_SATA_BROKEN_MSG_ADDR_HI 0x5c
+#define SATA_INITI_D2H_STORE_ADDR_LO 0x60
+#define SATA_INITI_D2H_STORE_ADDR_HI 0x64
+#define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL 0x84
+#define HGC_SAS_TXFAIL_RETRY_CTRL 0x88
+#define HGC_GET_ITV_TIME 0x90
+#define DEVICE_MSG_WORK_MODE 0x94
+#define OPENA_WT_CONTI_TIME 0x9c
+#define I_T_NEXUS_LOSS_TIME 0xa0
+#define MAX_CON_TIME_LIMIT_TIME 0xa4
+#define BUS_INACTIVE_LIMIT_TIME 0xa8
+#define REJECT_TO_OPEN_LIMIT_TIME 0xac
+#define CFG_AGING_TIME 0xbc
+#define HGC_DFX_CFG2 0xc0
+#define HGC_IOMB_PROC1_STATUS 0x104
+#define CFG_1US_TIMER_TRSH 0xcc
+#define HGC_LM_DFX_STATUS2 0x128
+#define HGC_LM_DFX_STATUS2_IOSTLIST_OFF 0
+#define HGC_LM_DFX_STATUS2_IOSTLIST_MSK (0xfff << \
+ HGC_LM_DFX_STATUS2_IOSTLIST_OFF)
+#define HGC_LM_DFX_STATUS2_ITCTLIST_OFF 12
+#define HGC_LM_DFX_STATUS2_ITCTLIST_MSK (0x7ff << \
+ HGC_LM_DFX_STATUS2_ITCTLIST_OFF)
+#define HGC_CQE_ECC_ADDR 0x13c
+#define HGC_CQE_ECC_1B_ADDR_OFF 0
+#define HGC_CQE_ECC_1B_ADDR_MSK (0x3f << HGC_CQE_ECC_1B_ADDR_OFF)
+#define HGC_CQE_ECC_MB_ADDR_OFF 8
+#define HGC_CQE_ECC_MB_ADDR_MSK (0x3f << HGC_CQE_ECC_MB_ADDR_OFF)
+#define HGC_IOST_ECC_ADDR 0x140
+#define HGC_IOST_ECC_1B_ADDR_OFF 0
+#define HGC_IOST_ECC_1B_ADDR_MSK (0x3ff << HGC_IOST_ECC_1B_ADDR_OFF)
+#define HGC_IOST_ECC_MB_ADDR_OFF 16
+#define HGC_IOST_ECC_MB_ADDR_MSK (0x3ff << HGC_IOST_ECC_MB_ADDR_OFF)
+#define HGC_DQE_ECC_ADDR 0x144
+#define HGC_DQE_ECC_1B_ADDR_OFF 0
+#define HGC_DQE_ECC_1B_ADDR_MSK (0xfff << HGC_DQE_ECC_1B_ADDR_OFF)
+#define HGC_DQE_ECC_MB_ADDR_OFF 16
+#define HGC_DQE_ECC_MB_ADDR_MSK (0xfff << HGC_DQE_ECC_MB_ADDR_OFF)
+#define HGC_INVLD_DQE_INFO 0x148
+#define HGC_INVLD_DQE_INFO_FB_CH0_OFF 9
+#define HGC_INVLD_DQE_INFO_FB_CH0_MSK (0x1 << HGC_INVLD_DQE_INFO_FB_CH0_OFF)
+#define HGC_INVLD_DQE_INFO_FB_CH3_OFF 18
+#define HGC_ITCT_ECC_ADDR 0x150
+#define HGC_ITCT_ECC_1B_ADDR_OFF 0
+#define HGC_ITCT_ECC_1B_ADDR_MSK (0x3ff << \
+ HGC_ITCT_ECC_1B_ADDR_OFF)
+#define HGC_ITCT_ECC_MB_ADDR_OFF 16
+#define HGC_ITCT_ECC_MB_ADDR_MSK (0x3ff << \
+ HGC_ITCT_ECC_MB_ADDR_OFF)
+#define HGC_AXI_FIFO_ERR_INFO 0x154
+#define AXI_ERR_INFO_OFF 0
+#define AXI_ERR_INFO_MSK (0xff << AXI_ERR_INFO_OFF)
+#define FIFO_ERR_INFO_OFF 8
+#define FIFO_ERR_INFO_MSK (0xff << FIFO_ERR_INFO_OFF)
+#define INT_COAL_EN 0x19c
+#define OQ_INT_COAL_TIME 0x1a0
+#define OQ_INT_COAL_CNT 0x1a4
+#define ENT_INT_COAL_TIME 0x1a8
+#define ENT_INT_COAL_CNT 0x1ac
+#define OQ_INT_SRC 0x1b0
+#define OQ_INT_SRC_MSK 0x1b4
+#define ENT_INT_SRC1 0x1b8
+#define ENT_INT_SRC1_D2H_FIS_CH0_OFF 0
+#define ENT_INT_SRC1_D2H_FIS_CH0_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH0_OFF)
+#define ENT_INT_SRC1_D2H_FIS_CH1_OFF 8
+#define ENT_INT_SRC1_D2H_FIS_CH1_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH1_OFF)
+#define ENT_INT_SRC2 0x1bc
+#define ENT_INT_SRC3 0x1c0
+#define ENT_INT_SRC3_WP_DEPTH_OFF 8
+#define ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF 9
+#define ENT_INT_SRC3_RP_DEPTH_OFF 10
+#define ENT_INT_SRC3_AXI_OFF 11
+#define ENT_INT_SRC3_FIFO_OFF 12
+#define ENT_INT_SRC3_LM_OFF 14
+#define ENT_INT_SRC3_ITC_INT_OFF 15
+#define ENT_INT_SRC3_ITC_INT_MSK (0x1 << ENT_INT_SRC3_ITC_INT_OFF)
+#define ENT_INT_SRC3_ABT_OFF 16
+#define ENT_INT_SRC_MSK1 0x1c4
+#define ENT_INT_SRC_MSK2 0x1c8
+#define ENT_INT_SRC_MSK3 0x1cc
+#define ENT_INT_SRC_MSK3_ENT95_MSK_OFF 31
+#define ENT_INT_SRC_MSK3_ENT95_MSK_MSK (0x1 << ENT_INT_SRC_MSK3_ENT95_MSK_OFF)
+#define SAS_ECC_INTR 0x1e8
+#define SAS_ECC_INTR_DQE_ECC_1B_OFF 0
+#define SAS_ECC_INTR_DQE_ECC_MB_OFF 1
+#define SAS_ECC_INTR_IOST_ECC_1B_OFF 2
+#define SAS_ECC_INTR_IOST_ECC_MB_OFF 3
+#define SAS_ECC_INTR_ITCT_ECC_MB_OFF 4
+#define SAS_ECC_INTR_ITCT_ECC_1B_OFF 5
+#define SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF 6
+#define SAS_ECC_INTR_IOSTLIST_ECC_1B_OFF 7
+#define SAS_ECC_INTR_ITCTLIST_ECC_1B_OFF 8
+#define SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF 9
+#define SAS_ECC_INTR_CQE_ECC_1B_OFF 10
+#define SAS_ECC_INTR_CQE_ECC_MB_OFF 11
+#define SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF 12
+#define SAS_ECC_INTR_NCQ_MEM0_ECC_1B_OFF 13
+#define SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF 14
+#define SAS_ECC_INTR_NCQ_MEM1_ECC_1B_OFF 15
+#define SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF 16
+#define SAS_ECC_INTR_NCQ_MEM2_ECC_1B_OFF 17
+#define SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF 18
+#define SAS_ECC_INTR_NCQ_MEM3_ECC_1B_OFF 19
+#define SAS_ECC_INTR_MSK 0x1ec
+#define HGC_ERR_STAT_EN 0x238
+#define CQE_SEND_CNT 0x248
+#define DLVRY_Q_0_BASE_ADDR_LO 0x260
+#define DLVRY_Q_0_BASE_ADDR_HI 0x264
+#define DLVRY_Q_0_DEPTH 0x268
+#define DLVRY_Q_0_WR_PTR 0x26c
+#define DLVRY_Q_0_RD_PTR 0x270
+#define HYPER_STREAM_ID_EN_CFG 0xc80
+#define OQ0_INT_SRC_MSK 0xc90
+#define COMPL_Q_0_BASE_ADDR_LO 0x4e0
+#define COMPL_Q_0_BASE_ADDR_HI 0x4e4
+#define COMPL_Q_0_DEPTH 0x4e8
+#define COMPL_Q_0_WR_PTR 0x4ec
+#define COMPL_Q_0_RD_PTR 0x4f0
+#define HGC_RXM_DFX_STATUS14 0xae8
+#define HGC_RXM_DFX_STATUS14_MEM0_OFF 0
+#define HGC_RXM_DFX_STATUS14_MEM0_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS14_MEM0_OFF)
+#define HGC_RXM_DFX_STATUS14_MEM1_OFF 9
+#define HGC_RXM_DFX_STATUS14_MEM1_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS14_MEM1_OFF)
+#define HGC_RXM_DFX_STATUS14_MEM2_OFF 18
+#define HGC_RXM_DFX_STATUS14_MEM2_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS14_MEM2_OFF)
+#define HGC_RXM_DFX_STATUS15 0xaec
+#define HGC_RXM_DFX_STATUS15_MEM3_OFF 0
+#define HGC_RXM_DFX_STATUS15_MEM3_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS15_MEM3_OFF)
+/* phy registers need init */
+#define PORT_BASE (0x2000)
+
+#define PHY_CFG (PORT_BASE + 0x0)
+#define HARD_PHY_LINKRATE (PORT_BASE + 0x4)
+#define PHY_CFG_ENA_OFF 0
+#define PHY_CFG_ENA_MSK (0x1 << PHY_CFG_ENA_OFF)
+#define PHY_CFG_DC_OPT_OFF 2
+#define PHY_CFG_DC_OPT_MSK (0x1 << PHY_CFG_DC_OPT_OFF)
+#define PROG_PHY_LINK_RATE (PORT_BASE + 0x8)
+#define PROG_PHY_LINK_RATE_MAX_OFF 0
+#define PROG_PHY_LINK_RATE_MAX_MSK (0xff << PROG_PHY_LINK_RATE_MAX_OFF)
+#define PHY_CTRL (PORT_BASE + 0x14)
+#define PHY_CTRL_RESET_OFF 0
+#define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF)
+#define SAS_PHY_CTRL (PORT_BASE + 0x20)
+#define SL_CFG (PORT_BASE + 0x84)
+#define PHY_PCN (PORT_BASE + 0x44)
+#define SL_TOUT_CFG (PORT_BASE + 0x8c)
+#define SL_CONTROL (PORT_BASE + 0x94)
+#define SL_CONTROL_NOTIFY_EN_OFF 0
+#define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
+#define SL_CONTROL_CTA_OFF 17
+#define SL_CONTROL_CTA_MSK (0x1 << SL_CONTROL_CTA_OFF)
+#define RX_PRIMS_STATUS (PORT_BASE + 0x98)
+#define RX_BCAST_CHG_OFF 1
+#define RX_BCAST_CHG_MSK (0x1 << RX_BCAST_CHG_OFF)
+#define TX_ID_DWORD0 (PORT_BASE + 0x9c)
+#define TX_ID_DWORD1 (PORT_BASE + 0xa0)
+#define TX_ID_DWORD2 (PORT_BASE + 0xa4)
+#define TX_ID_DWORD3 (PORT_BASE + 0xa8)
+#define TX_ID_DWORD4 (PORT_BASE + 0xaC)
+#define TX_ID_DWORD5 (PORT_BASE + 0xb0)
+#define TX_ID_DWORD6 (PORT_BASE + 0xb4)
+#define TXID_AUTO (PORT_BASE + 0xb8)
+#define TXID_AUTO_CT3_OFF 1
+#define TXID_AUTO_CT3_MSK (0x1 << TXID_AUTO_CT3_OFF)
+#define TXID_AUTO_CTB_OFF 11
+#define TXID_AUTO_CTB_MSK (0x1 << TXID_AUTO_CTB_OFF)
+#define TX_HARDRST_OFF 2
+#define TX_HARDRST_MSK (0x1 << TX_HARDRST_OFF)
+#define RX_IDAF_DWORD0 (PORT_BASE + 0xc4)
+#define RX_IDAF_DWORD1 (PORT_BASE + 0xc8)
+#define RX_IDAF_DWORD2 (PORT_BASE + 0xcc)
+#define RX_IDAF_DWORD3 (PORT_BASE + 0xd0)
+#define RX_IDAF_DWORD4 (PORT_BASE + 0xd4)
+#define RX_IDAF_DWORD5 (PORT_BASE + 0xd8)
+#define RX_IDAF_DWORD6 (PORT_BASE + 0xdc)
+#define RXOP_CHECK_CFG_H (PORT_BASE + 0xfc)
+#define CON_CONTROL (PORT_BASE + 0x118)
+#define CON_CONTROL_CFG_OPEN_ACC_STP_OFF 0
+#define CON_CONTROL_CFG_OPEN_ACC_STP_MSK \
+ (0x01 << CON_CONTROL_CFG_OPEN_ACC_STP_OFF)
+#define DONE_RECEIVED_TIME (PORT_BASE + 0x11c)
+#define CHL_INT0 (PORT_BASE + 0x1b4)
+#define CHL_INT0_HOTPLUG_TOUT_OFF 0
+#define CHL_INT0_HOTPLUG_TOUT_MSK (0x1 << CHL_INT0_HOTPLUG_TOUT_OFF)
+#define CHL_INT0_SL_RX_BCST_ACK_OFF 1
+#define CHL_INT0_SL_RX_BCST_ACK_MSK (0x1 << CHL_INT0_SL_RX_BCST_ACK_OFF)
+#define CHL_INT0_SL_PHY_ENABLE_OFF 2
+#define CHL_INT0_SL_PHY_ENABLE_MSK (0x1 << CHL_INT0_SL_PHY_ENABLE_OFF)
+#define CHL_INT0_NOT_RDY_OFF 4
+#define CHL_INT0_NOT_RDY_MSK (0x1 << CHL_INT0_NOT_RDY_OFF)
+#define CHL_INT0_PHY_RDY_OFF 5
+#define CHL_INT0_PHY_RDY_MSK (0x1 << CHL_INT0_PHY_RDY_OFF)
+#define CHL_INT1 (PORT_BASE + 0x1b8)
+#define CHL_INT1_DMAC_TX_ECC_ERR_OFF 15
+#define CHL_INT1_DMAC_TX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_TX_ECC_ERR_OFF)
+#define CHL_INT1_DMAC_RX_ECC_ERR_OFF 17
+#define CHL_INT1_DMAC_RX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_RX_ECC_ERR_OFF)
+#define CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF 19
+#define CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF 20
+#define CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF 21
+#define CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF 22
+#define CHL_INT2 (PORT_BASE + 0x1bc)
+#define CHL_INT2_SL_IDAF_TOUT_CONF_OFF 0
+#define CHL_INT0_MSK (PORT_BASE + 0x1c0)
+#define CHL_INT1_MSK (PORT_BASE + 0x1c4)
+#define CHL_INT2_MSK (PORT_BASE + 0x1c8)
+#define CHL_INT_COAL_EN (PORT_BASE + 0x1d0)
+#define DMA_TX_DFX0 (PORT_BASE + 0x200)
+#define DMA_TX_DFX1 (PORT_BASE + 0x204)
+#define DMA_TX_DFX1_IPTT_OFF 0
+#define DMA_TX_DFX1_IPTT_MSK (0xffff << DMA_TX_DFX1_IPTT_OFF)
+#define DMA_TX_FIFO_DFX0 (PORT_BASE + 0x240)
+#define PORT_DFX0 (PORT_BASE + 0x258)
+#define LINK_DFX2 (PORT_BASE + 0X264)
+#define LINK_DFX2_RCVR_HOLD_STS_OFF 9
+#define LINK_DFX2_RCVR_HOLD_STS_MSK (0x1 << LINK_DFX2_RCVR_HOLD_STS_OFF)
+#define LINK_DFX2_SEND_HOLD_STS_OFF 10
+#define LINK_DFX2_SEND_HOLD_STS_MSK (0x1 << LINK_DFX2_SEND_HOLD_STS_OFF)
+#define SAS_ERR_CNT4_REG (PORT_BASE + 0x290)
+#define SAS_ERR_CNT6_REG (PORT_BASE + 0x298)
+#define PHY_CTRL_RDY_MSK (PORT_BASE + 0x2b0)
+#define PHYCTRL_NOT_RDY_MSK (PORT_BASE + 0x2b4)
+#define PHYCTRL_DWS_RESET_MSK (PORT_BASE + 0x2b8)
+#define PHYCTRL_PHY_ENA_MSK (PORT_BASE + 0x2bc)
+#define SL_RX_BCAST_CHK_MSK (PORT_BASE + 0x2c0)
+#define PHYCTRL_OOB_RESTART_MSK (PORT_BASE + 0x2c4)
+#define DMA_TX_STATUS (PORT_BASE + 0x2d0)
+#define DMA_TX_STATUS_BUSY_OFF 0
+#define DMA_TX_STATUS_BUSY_MSK (0x1 << DMA_TX_STATUS_BUSY_OFF)
+#define DMA_RX_STATUS (PORT_BASE + 0x2e8)
+#define DMA_RX_STATUS_BUSY_OFF 0
+#define DMA_RX_STATUS_BUSY_MSK (0x1 << DMA_RX_STATUS_BUSY_OFF)
+
+#define AXI_CFG (0x5100)
+#define AM_CFG_MAX_TRANS (0x5010)
+#define AM_CFG_SINGLE_PORT_MAX_TRANS (0x5014)
+
+#define AXI_MASTER_CFG_BASE (0x5000)
+#define AM_CTRL_GLOBAL (0x0)
+#define AM_CURR_TRANS_RETURN (0x150)
+
+/* HW dma structures */
+/* Delivery queue header */
+/* dw0 */
+#define CMD_HDR_ABORT_FLAG_OFF 0
+#define CMD_HDR_ABORT_FLAG_MSK (0x3 << CMD_HDR_ABORT_FLAG_OFF)
+#define CMD_HDR_ABORT_DEVICE_TYPE_OFF 2
+#define CMD_HDR_ABORT_DEVICE_TYPE_MSK (0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF)
+#define CMD_HDR_RESP_REPORT_OFF 5
+#define CMD_HDR_RESP_REPORT_MSK (0x1 << CMD_HDR_RESP_REPORT_OFF)
+#define CMD_HDR_TLR_CTRL_OFF 6
+#define CMD_HDR_TLR_CTRL_MSK (0x3 << CMD_HDR_TLR_CTRL_OFF)
+#define CMD_HDR_PHY_ID_OFF 8
+#define CMD_HDR_PHY_ID_MSK (0x1ff << CMD_HDR_PHY_ID_OFF)
+#define CMD_HDR_FORCE_PHY_OFF 17
+#define CMD_HDR_FORCE_PHY_MSK (0x1 << CMD_HDR_FORCE_PHY_OFF)
+#define CMD_HDR_PORT_OFF 18
+#define CMD_HDR_PORT_MSK (0xf << CMD_HDR_PORT_OFF)
+#define CMD_HDR_PRIORITY_OFF 27
+#define CMD_HDR_PRIORITY_MSK (0x1 << CMD_HDR_PRIORITY_OFF)
+#define CMD_HDR_CMD_OFF 29
+#define CMD_HDR_CMD_MSK (0x7 << CMD_HDR_CMD_OFF)
+/* dw1 */
+#define CMD_HDR_DIR_OFF 5
+#define CMD_HDR_DIR_MSK (0x3 << CMD_HDR_DIR_OFF)
+#define CMD_HDR_RESET_OFF 7
+#define CMD_HDR_RESET_MSK (0x1 << CMD_HDR_RESET_OFF)
+#define CMD_HDR_VDTL_OFF 10
+#define CMD_HDR_VDTL_MSK (0x1 << CMD_HDR_VDTL_OFF)
+#define CMD_HDR_FRAME_TYPE_OFF 11
+#define CMD_HDR_FRAME_TYPE_MSK (0x1f << CMD_HDR_FRAME_TYPE_OFF)
+#define CMD_HDR_DEV_ID_OFF 16
+#define CMD_HDR_DEV_ID_MSK (0xffff << CMD_HDR_DEV_ID_OFF)
+/* dw2 */
+#define CMD_HDR_CFL_OFF 0
+#define CMD_HDR_CFL_MSK (0x1ff << CMD_HDR_CFL_OFF)
+#define CMD_HDR_NCQ_TAG_OFF 10
+#define CMD_HDR_NCQ_TAG_MSK (0x1f << CMD_HDR_NCQ_TAG_OFF)
+#define CMD_HDR_MRFL_OFF 15
+#define CMD_HDR_MRFL_MSK (0x1ff << CMD_HDR_MRFL_OFF)
+#define CMD_HDR_SG_MOD_OFF 24
+#define CMD_HDR_SG_MOD_MSK (0x3 << CMD_HDR_SG_MOD_OFF)
+#define CMD_HDR_FIRST_BURST_OFF 26
+#define CMD_HDR_FIRST_BURST_MSK (0x1 << CMD_HDR_SG_MOD_OFF)
+/* dw3 */
+#define CMD_HDR_IPTT_OFF 0
+#define CMD_HDR_IPTT_MSK (0xffff << CMD_HDR_IPTT_OFF)
+/* dw6 */
+#define CMD_HDR_DIF_SGL_LEN_OFF 0
+#define CMD_HDR_DIF_SGL_LEN_MSK (0xffff << CMD_HDR_DIF_SGL_LEN_OFF)
+#define CMD_HDR_DATA_SGL_LEN_OFF 16
+#define CMD_HDR_DATA_SGL_LEN_MSK (0xffff << CMD_HDR_DATA_SGL_LEN_OFF)
+#define CMD_HDR_ABORT_IPTT_OFF 16
+#define CMD_HDR_ABORT_IPTT_MSK (0xffff << CMD_HDR_ABORT_IPTT_OFF)
+
+/* Completion header */
+/* dw0 */
+#define CMPLT_HDR_ERR_PHASE_OFF 2
+#define CMPLT_HDR_ERR_PHASE_MSK (0xff << CMPLT_HDR_ERR_PHASE_OFF)
+#define CMPLT_HDR_RSPNS_XFRD_OFF 10
+#define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
+#define CMPLT_HDR_ERX_OFF 12
+#define CMPLT_HDR_ERX_MSK (0x1 << CMPLT_HDR_ERX_OFF)
+#define CMPLT_HDR_ABORT_STAT_OFF 13
+#define CMPLT_HDR_ABORT_STAT_MSK (0x7 << CMPLT_HDR_ABORT_STAT_OFF)
+/* abort_stat */
+#define STAT_IO_NOT_VALID 0x1
+#define STAT_IO_NO_DEVICE 0x2
+#define STAT_IO_COMPLETE 0x3
+#define STAT_IO_ABORTED 0x4
+/* dw1 */
+#define CMPLT_HDR_IPTT_OFF 0
+#define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF)
+#define CMPLT_HDR_DEV_ID_OFF 16
+#define CMPLT_HDR_DEV_ID_MSK (0xffff << CMPLT_HDR_DEV_ID_OFF)
+
+/* ITCT header */
+/* qw0 */
+#define ITCT_HDR_DEV_TYPE_OFF 0
+#define ITCT_HDR_DEV_TYPE_MSK (0x3 << ITCT_HDR_DEV_TYPE_OFF)
+#define ITCT_HDR_VALID_OFF 2
+#define ITCT_HDR_VALID_MSK (0x1 << ITCT_HDR_VALID_OFF)
+#define ITCT_HDR_MCR_OFF 5
+#define ITCT_HDR_MCR_MSK (0xf << ITCT_HDR_MCR_OFF)
+#define ITCT_HDR_VLN_OFF 9
+#define ITCT_HDR_VLN_MSK (0xf << ITCT_HDR_VLN_OFF)
+#define ITCT_HDR_SMP_TIMEOUT_OFF 16
+#define ITCT_HDR_SMP_TIMEOUT_8US 1
+#define ITCT_HDR_SMP_TIMEOUT (ITCT_HDR_SMP_TIMEOUT_8US * \
+ 250) /* 2ms */
+#define ITCT_HDR_AWT_CONTINUE_OFF 25
+#define ITCT_HDR_PORT_ID_OFF 28
+#define ITCT_HDR_PORT_ID_MSK (0xf << ITCT_HDR_PORT_ID_OFF)
+/* qw2 */
+#define ITCT_HDR_INLT_OFF 0
+#define ITCT_HDR_INLT_MSK (0xffffULL << ITCT_HDR_INLT_OFF)
+#define ITCT_HDR_BITLT_OFF 16
+#define ITCT_HDR_BITLT_MSK (0xffffULL << ITCT_HDR_BITLT_OFF)
+#define ITCT_HDR_MCTLT_OFF 32
+#define ITCT_HDR_MCTLT_MSK (0xffffULL << ITCT_HDR_MCTLT_OFF)
+#define ITCT_HDR_RTOLT_OFF 48
+#define ITCT_HDR_RTOLT_MSK (0xffffULL << ITCT_HDR_RTOLT_OFF)
+
+#define HISI_SAS_FATAL_INT_NR 2
+
+struct hisi_sas_complete_v2_hdr {
+ __le32 dw0;
+ __le32 dw1;
+ __le32 act;
+ __le32 dw3;
+};
+
+struct hisi_sas_err_record_v2 {
+ /* dw0 */
+ __le32 trans_tx_fail_type;
+
+ /* dw1 */
+ __le32 trans_rx_fail_type;
+
+ /* dw2 */
+ __le16 dma_tx_err_type;
+ __le16 sipc_rx_err_type;
+
+ /* dw3 */
+ __le32 dma_rx_err_type;
+};
+
+struct signal_attenuation_s {
+ u32 de_emphasis;
+ u32 preshoot;
+ u32 boost;
+};
+
+struct sig_atten_lu_s {
+ const struct signal_attenuation_s *att;
+ u32 sas_phy_ctrl;
+};
+
+static const struct hisi_sas_hw_error one_bit_ecc_errors[] = {
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_DQE_ECC_1B_OFF),
+ .msk = HGC_DQE_ECC_1B_ADDR_MSK,
+ .shift = HGC_DQE_ECC_1B_ADDR_OFF,
+ .msg = "hgc_dqe_ecc1b_intr",
+ .reg = HGC_DQE_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_IOST_ECC_1B_OFF),
+ .msk = HGC_IOST_ECC_1B_ADDR_MSK,
+ .shift = HGC_IOST_ECC_1B_ADDR_OFF,
+ .msg = "hgc_iost_ecc1b_intr",
+ .reg = HGC_IOST_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_ITCT_ECC_1B_OFF),
+ .msk = HGC_ITCT_ECC_1B_ADDR_MSK,
+ .shift = HGC_ITCT_ECC_1B_ADDR_OFF,
+ .msg = "hgc_itct_ecc1b_intr",
+ .reg = HGC_ITCT_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_IOSTLIST_ECC_1B_OFF),
+ .msk = HGC_LM_DFX_STATUS2_IOSTLIST_MSK,
+ .shift = HGC_LM_DFX_STATUS2_IOSTLIST_OFF,
+ .msg = "hgc_iostl_ecc1b_intr",
+ .reg = HGC_LM_DFX_STATUS2,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_ITCTLIST_ECC_1B_OFF),
+ .msk = HGC_LM_DFX_STATUS2_ITCTLIST_MSK,
+ .shift = HGC_LM_DFX_STATUS2_ITCTLIST_OFF,
+ .msg = "hgc_itctl_ecc1b_intr",
+ .reg = HGC_LM_DFX_STATUS2,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_CQE_ECC_1B_OFF),
+ .msk = HGC_CQE_ECC_1B_ADDR_MSK,
+ .shift = HGC_CQE_ECC_1B_ADDR_OFF,
+ .msg = "hgc_cqe_ecc1b_intr",
+ .reg = HGC_CQE_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM0_ECC_1B_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM0_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM0_OFF,
+ .msg = "rxm_mem0_ecc1b_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM1_ECC_1B_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM1_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM1_OFF,
+ .msg = "rxm_mem1_ecc1b_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM2_ECC_1B_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM2_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM2_OFF,
+ .msg = "rxm_mem2_ecc1b_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM3_ECC_1B_OFF),
+ .msk = HGC_RXM_DFX_STATUS15_MEM3_MSK,
+ .shift = HGC_RXM_DFX_STATUS15_MEM3_OFF,
+ .msg = "rxm_mem3_ecc1b_intr",
+ .reg = HGC_RXM_DFX_STATUS15,
+ },
+};
+
+static const struct hisi_sas_hw_error multi_bit_ecc_errors[] = {
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_DQE_ECC_MB_OFF),
+ .msk = HGC_DQE_ECC_MB_ADDR_MSK,
+ .shift = HGC_DQE_ECC_MB_ADDR_OFF,
+ .msg = "hgc_dqe_eccbad_intr",
+ .reg = HGC_DQE_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_IOST_ECC_MB_OFF),
+ .msk = HGC_IOST_ECC_MB_ADDR_MSK,
+ .shift = HGC_IOST_ECC_MB_ADDR_OFF,
+ .msg = "hgc_iost_eccbad_intr",
+ .reg = HGC_IOST_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_ITCT_ECC_MB_OFF),
+ .msk = HGC_ITCT_ECC_MB_ADDR_MSK,
+ .shift = HGC_ITCT_ECC_MB_ADDR_OFF,
+ .msg = "hgc_itct_eccbad_intr",
+ .reg = HGC_ITCT_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF),
+ .msk = HGC_LM_DFX_STATUS2_IOSTLIST_MSK,
+ .shift = HGC_LM_DFX_STATUS2_IOSTLIST_OFF,
+ .msg = "hgc_iostl_eccbad_intr",
+ .reg = HGC_LM_DFX_STATUS2,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF),
+ .msk = HGC_LM_DFX_STATUS2_ITCTLIST_MSK,
+ .shift = HGC_LM_DFX_STATUS2_ITCTLIST_OFF,
+ .msg = "hgc_itctl_eccbad_intr",
+ .reg = HGC_LM_DFX_STATUS2,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_CQE_ECC_MB_OFF),
+ .msk = HGC_CQE_ECC_MB_ADDR_MSK,
+ .shift = HGC_CQE_ECC_MB_ADDR_OFF,
+ .msg = "hgc_cqe_eccbad_intr",
+ .reg = HGC_CQE_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM0_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM0_OFF,
+ .msg = "rxm_mem0_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM1_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM1_OFF,
+ .msg = "rxm_mem1_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM2_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM2_OFF,
+ .msg = "rxm_mem2_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS15_MEM3_MSK,
+ .shift = HGC_RXM_DFX_STATUS15_MEM3_OFF,
+ .msg = "rxm_mem3_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS15,
+ },
+};
+
+enum {
+ HISI_SAS_PHY_PHY_UPDOWN,
+ HISI_SAS_PHY_CHNL_INT,
+ HISI_SAS_PHY_INT_NR
+};
+
+enum {
+ TRANS_TX_FAIL_BASE = 0x0, /* dw0 */
+ TRANS_RX_FAIL_BASE = 0x20, /* dw1 */
+ DMA_TX_ERR_BASE = 0x40, /* dw2 bit 15-0 */
+ SIPC_RX_ERR_BASE = 0x50, /* dw2 bit 31-16*/
+ DMA_RX_ERR_BASE = 0x60, /* dw3 */
+
+ /* trans tx*/
+ TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS = TRANS_TX_FAIL_BASE, /* 0x0 */
+ TRANS_TX_ERR_PHY_NOT_ENABLE, /* 0x1 */
+ TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION, /* 0x2 */
+ TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION, /* 0x3 */
+ TRANS_TX_OPEN_CNX_ERR_BY_OTHER, /* 0x4 */
+ RESERVED0, /* 0x5 */
+ TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT, /* 0x6 */
+ TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY, /* 0x7 */
+ TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED, /* 0x8 */
+ TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED, /* 0x9 */
+ TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION, /* 0xa */
+ TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD, /* 0xb */
+ TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER, /* 0xc */
+ TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED, /* 0xd */
+ TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT, /* 0xe */
+ TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION, /* 0xf */
+ TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED, /* 0x10 */
+ TRANS_TX_ERR_FRAME_TXED, /* 0x11 */
+ TRANS_TX_ERR_WITH_BREAK_TIMEOUT, /* 0x12 */
+ TRANS_TX_ERR_WITH_BREAK_REQUEST, /* 0x13 */
+ TRANS_TX_ERR_WITH_BREAK_RECEVIED, /* 0x14 */
+ TRANS_TX_ERR_WITH_CLOSE_TIMEOUT, /* 0x15 */
+ TRANS_TX_ERR_WITH_CLOSE_NORMAL, /* 0x16 for ssp*/
+ TRANS_TX_ERR_WITH_CLOSE_PHYDISALE, /* 0x17 */
+ TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT, /* 0x18 */
+ TRANS_TX_ERR_WITH_CLOSE_COMINIT, /* 0x19 */
+ TRANS_TX_ERR_WITH_NAK_RECEVIED, /* 0x1a for ssp*/
+ TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT, /* 0x1b for ssp*/
+ /*IO_TX_ERR_WITH_R_ERR_RECEVIED, [> 0x1b for sata/stp<] */
+ TRANS_TX_ERR_WITH_CREDIT_TIMEOUT, /* 0x1c for ssp */
+ /*IO_RX_ERR_WITH_SATA_DEVICE_LOST 0x1c for sata/stp */
+ TRANS_TX_ERR_WITH_IPTT_CONFLICT, /* 0x1d for ssp/smp */
+ TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS, /* 0x1e */
+ /*IO_TX_ERR_WITH_SYNC_RXD, [> 0x1e <] for sata/stp */
+ TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT, /* 0x1f for sata/stp */
+
+ /* trans rx */
+ TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x20 */
+ TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR, /* 0x21 for sata/stp */
+ TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM, /* 0x22 for ssp/smp */
+ /*IO_ERR_WITH_RXFIS_8B10B_CODE_ERR, [> 0x22 <] for sata/stp */
+ TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR, /* 0x23 for sata/stp */
+ TRANS_RX_ERR_WITH_RXFIS_CRC_ERR, /* 0x24 for sata/stp */
+ TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN, /* 0x25 for smp */
+ /*IO_ERR_WITH_RXFIS_TX SYNCP, [> 0x25 <] for sata/stp */
+ TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP, /* 0x26 for sata/stp*/
+ TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN, /* 0x27 */
+ TRANS_RX_ERR_WITH_BREAK_TIMEOUT, /* 0x28 */
+ TRANS_RX_ERR_WITH_BREAK_REQUEST, /* 0x29 */
+ TRANS_RX_ERR_WITH_BREAK_RECEVIED, /* 0x2a */
+ RESERVED1, /* 0x2b */
+ TRANS_RX_ERR_WITH_CLOSE_NORMAL, /* 0x2c */
+ TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE, /* 0x2d */
+ TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT, /* 0x2e */
+ TRANS_RX_ERR_WITH_CLOSE_COMINIT, /* 0x2f */
+ TRANS_RX_ERR_WITH_DATA_LEN0, /* 0x30 for ssp/smp */
+ TRANS_RX_ERR_WITH_BAD_HASH, /* 0x31 for ssp */
+ /*IO_RX_ERR_WITH_FIS_TOO_SHORT, [> 0x31 <] for sata/stp */
+ TRANS_RX_XRDY_WLEN_ZERO_ERR, /* 0x32 for ssp*/
+ /*IO_RX_ERR_WITH_FIS_TOO_LONG, [> 0x32 <] for sata/stp */
+ TRANS_RX_SSP_FRM_LEN_ERR, /* 0x33 for ssp */
+ /*IO_RX_ERR_WITH_SATA_DEVICE_LOST, [> 0x33 <] for sata */
+ RESERVED2, /* 0x34 */
+ RESERVED3, /* 0x35 */
+ RESERVED4, /* 0x36 */
+ RESERVED5, /* 0x37 */
+ TRANS_RX_ERR_WITH_BAD_FRM_TYPE, /* 0x38 */
+ TRANS_RX_SMP_FRM_LEN_ERR, /* 0x39 */
+ TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x3a */
+ RESERVED6, /* 0x3b */
+ RESERVED7, /* 0x3c */
+ RESERVED8, /* 0x3d */
+ RESERVED9, /* 0x3e */
+ TRANS_RX_R_ERR, /* 0x3f */
+
+ /* dma tx */
+ DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x40 */
+ DMA_TX_DIF_APP_ERR, /* 0x41 */
+ DMA_TX_DIF_RPP_ERR, /* 0x42 */
+ DMA_TX_DATA_SGL_OVERFLOW, /* 0x43 */
+ DMA_TX_DIF_SGL_OVERFLOW, /* 0x44 */
+ DMA_TX_UNEXP_XFER_ERR, /* 0x45 */
+ DMA_TX_UNEXP_RETRANS_ERR, /* 0x46 */
+ DMA_TX_XFER_LEN_OVERFLOW, /* 0x47 */
+ DMA_TX_XFER_OFFSET_ERR, /* 0x48 */
+ DMA_TX_RAM_ECC_ERR, /* 0x49 */
+ DMA_TX_DIF_LEN_ALIGN_ERR, /* 0x4a */
+ DMA_TX_MAX_ERR_CODE,
+
+ /* sipc rx */
+ SIPC_RX_FIS_STATUS_ERR_BIT_VLD = SIPC_RX_ERR_BASE, /* 0x50 */
+ SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR, /* 0x51 */
+ SIPC_RX_FIS_STATUS_BSY_BIT_ERR, /* 0x52 */
+ SIPC_RX_WRSETUP_LEN_ODD_ERR, /* 0x53 */
+ SIPC_RX_WRSETUP_LEN_ZERO_ERR, /* 0x54 */
+ SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR, /* 0x55 */
+ SIPC_RX_NCQ_WRSETUP_OFFSET_ERR, /* 0x56 */
+ SIPC_RX_NCQ_WRSETUP_AUTO_ACTIVE_ERR, /* 0x57 */
+ SIPC_RX_SATA_UNEXP_FIS_ERR, /* 0x58 */
+ SIPC_RX_WRSETUP_ESTATUS_ERR, /* 0x59 */
+ SIPC_RX_DATA_UNDERFLOW_ERR, /* 0x5a */
+ SIPC_RX_MAX_ERR_CODE,
+
+ /* dma rx */
+ DMA_RX_DIF_CRC_ERR = DMA_RX_ERR_BASE, /* 0x60 */
+ DMA_RX_DIF_APP_ERR, /* 0x61 */
+ DMA_RX_DIF_RPP_ERR, /* 0x62 */
+ DMA_RX_DATA_SGL_OVERFLOW, /* 0x63 */
+ DMA_RX_DIF_SGL_OVERFLOW, /* 0x64 */
+ DMA_RX_DATA_LEN_OVERFLOW, /* 0x65 */
+ DMA_RX_DATA_LEN_UNDERFLOW, /* 0x66 */
+ DMA_RX_DATA_OFFSET_ERR, /* 0x67 */
+ RESERVED10, /* 0x68 */
+ DMA_RX_SATA_FRAME_TYPE_ERR, /* 0x69 */
+ DMA_RX_RESP_BUF_OVERFLOW, /* 0x6a */
+ DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x6b */
+ DMA_RX_UNEXP_NORM_RESP_ERR, /* 0x6c */
+ DMA_RX_UNEXP_RDFRAME_ERR, /* 0x6d */
+ DMA_RX_PIO_DATA_LEN_ERR, /* 0x6e */
+ DMA_RX_RDSETUP_STATUS_ERR, /* 0x6f */
+ DMA_RX_RDSETUP_STATUS_DRQ_ERR, /* 0x70 */
+ DMA_RX_RDSETUP_STATUS_BSY_ERR, /* 0x71 */
+ DMA_RX_RDSETUP_LEN_ODD_ERR, /* 0x72 */
+ DMA_RX_RDSETUP_LEN_ZERO_ERR, /* 0x73 */
+ DMA_RX_RDSETUP_LEN_OVER_ERR, /* 0x74 */
+ DMA_RX_RDSETUP_OFFSET_ERR, /* 0x75 */
+ DMA_RX_RDSETUP_ACTIVE_ERR, /* 0x76 */
+ DMA_RX_RDSETUP_ESTATUS_ERR, /* 0x77 */
+ DMA_RX_RAM_ECC_ERR, /* 0x78 */
+ DMA_RX_UNKNOWN_FRM_ERR, /* 0x79 */
+ DMA_RX_MAX_ERR_CODE,
+};
+
+#define HISI_SAS_COMMAND_ENTRIES_V2_HW 4096
+#define HISI_MAX_SATA_SUPPORT_V2_HW (HISI_SAS_COMMAND_ENTRIES_V2_HW/64 - 1)
+
+#define DIR_NO_DATA 0
+#define DIR_TO_INI 1
+#define DIR_TO_DEVICE 2
+#define DIR_RESERVED 3
+
+#define ERR_ON_TX_PHASE(err_phase) (err_phase == 0x2 || \
+ err_phase == 0x4 || err_phase == 0x8 ||\
+ err_phase == 0x6 || err_phase == 0xa)
+#define ERR_ON_RX_PHASE(err_phase) (err_phase == 0x10 || \
+ err_phase == 0x20 || err_phase == 0x40)
+
+static void link_timeout_disable_link(struct timer_list *t);
+
+static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ return readl(regs);
+}
+
+static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ return readl_relaxed(regs);
+}
+
+static void hisi_sas_write32(struct hisi_hba *hisi_hba, u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ writel(val, regs);
+}
+
+static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, int phy_no,
+ u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ writel(val, regs);
+}
+
+static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
+ int phy_no, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ return readl(regs);
+}
+
+/* This function needs to be protected from pre-emption. */
+static int
+slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba,
+ struct domain_device *device)
+{
+ int sata_dev = dev_is_sata(device);
+ void *bitmap = hisi_hba->slot_index_tags;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ int sata_idx = sas_dev->sata_idx;
+ int start, end;
+
+ if (!sata_dev) {
+ /*
+ * STP link SoC bug workaround: index starts from 1.
+ * additionally, we can only allocate odd IPTT(1~4095)
+ * for SAS/SMP device.
+ */
+ start = 1;
+ end = hisi_hba->slot_index_count;
+ } else {
+ if (sata_idx >= HISI_MAX_SATA_SUPPORT_V2_HW)
+ return -EINVAL;
+
+ /*
+ * For SATA device: allocate even IPTT in this interval
+ * [64*(sata_idx+1), 64*(sata_idx+2)], then each SATA device
+ * own 32 IPTTs. IPTT 0 shall not be used duing to STP link
+ * SoC bug workaround. So we ignore the first 32 even IPTTs.
+ */
+ start = 64 * (sata_idx + 1);
+ end = 64 * (sata_idx + 2);
+ }
+
+ spin_lock(&hisi_hba->lock);
+ while (1) {
+ start = find_next_zero_bit(bitmap,
+ hisi_hba->slot_index_count, start);
+ if (start >= end) {
+ spin_unlock(&hisi_hba->lock);
+ return -SAS_QUEUE_FULL;
+ }
+ /*
+ * SAS IPTT bit0 should be 1, and SATA IPTT bit0 should be 0.
+ */
+ if (sata_dev ^ (start & 1))
+ break;
+ start++;
+ }
+
+ set_bit(start, bitmap);
+ spin_unlock(&hisi_hba->lock);
+ return start;
+}
+
+static bool sata_index_alloc_v2_hw(struct hisi_hba *hisi_hba, int *idx)
+{
+ unsigned int index;
+ struct device *dev = hisi_hba->dev;
+ void *bitmap = hisi_hba->sata_dev_bitmap;
+
+ index = find_first_zero_bit(bitmap, HISI_MAX_SATA_SUPPORT_V2_HW);
+ if (index >= HISI_MAX_SATA_SUPPORT_V2_HW) {
+ dev_warn(dev, "alloc sata index failed, index=%d\n", index);
+ return false;
+ }
+
+ set_bit(index, bitmap);
+ *idx = index;
+ return true;
+}
+
+
+static struct
+hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device)
+{
+ struct hisi_hba *hisi_hba = device->port->ha->lldd_ha;
+ struct hisi_sas_device *sas_dev = NULL;
+ int i, sata_dev = dev_is_sata(device);
+ int sata_idx = -1;
+
+ spin_lock(&hisi_hba->lock);
+
+ if (sata_dev)
+ if (!sata_index_alloc_v2_hw(hisi_hba, &sata_idx))
+ goto out;
+
+ for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+ /*
+ * SATA device id bit0 should be 0
+ */
+ if (sata_dev && (i & 1))
+ continue;
+ if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) {
+ int queue = i % hisi_hba->queue_count;
+ struct hisi_sas_dq *dq = &hisi_hba->dq[queue];
+
+ hisi_hba->devices[i].device_id = i;
+ sas_dev = &hisi_hba->devices[i];
+ sas_dev->dev_status = HISI_SAS_DEV_INIT;
+ sas_dev->dev_type = device->dev_type;
+ sas_dev->hisi_hba = hisi_hba;
+ sas_dev->sas_device = device;
+ sas_dev->sata_idx = sata_idx;
+ sas_dev->dq = dq;
+ spin_lock_init(&sas_dev->lock);
+ INIT_LIST_HEAD(&hisi_hba->devices[i].list);
+ break;
+ }
+ }
+
+out:
+ spin_unlock(&hisi_hba->lock);
+
+ return sas_dev;
+}
+
+static void config_phy_opt_mode_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg &= ~PHY_CFG_DC_OPT_MSK;
+ cfg |= 1 << PHY_CFG_DC_OPT_OFF;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void config_id_frame_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct sas_identify_frame identify_frame;
+ u32 *identify_buffer;
+
+ memset(&identify_frame, 0, sizeof(identify_frame));
+ identify_frame.dev_type = SAS_END_DEVICE;
+ identify_frame.frame_type = 0;
+ identify_frame._un1 = 1;
+ identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
+ identify_frame.target_bits = SAS_PROTOCOL_NONE;
+ memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ identify_frame.phy_id = phy_no;
+ identify_buffer = (u32 *)(&identify_frame);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
+ __swab32(identify_buffer[0]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
+ __swab32(identify_buffer[1]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
+ __swab32(identify_buffer[2]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
+ __swab32(identify_buffer[3]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
+ __swab32(identify_buffer[4]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
+ __swab32(identify_buffer[5]));
+}
+
+static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *sas_dev)
+{
+ struct domain_device *device = sas_dev->sas_device;
+ struct device *dev = hisi_hba->dev;
+ u64 qw0, device_id = sas_dev->device_id;
+ struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
+ struct domain_device *parent_dev = device->parent;
+ struct asd_sas_port *sas_port = device->port;
+ struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
+ u64 sas_addr;
+
+ memset(itct, 0, sizeof(*itct));
+
+ /* qw0 */
+ qw0 = 0;
+ switch (sas_dev->dev_type) {
+ case SAS_END_DEVICE:
+ case SAS_EDGE_EXPANDER_DEVICE:
+ case SAS_FANOUT_EXPANDER_DEVICE:
+ qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
+ break;
+ case SAS_SATA_DEV:
+ case SAS_SATA_PENDING:
+ if (parent_dev && dev_is_expander(parent_dev->dev_type))
+ qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF;
+ else
+ qw0 = HISI_SAS_DEV_TYPE_SATA << ITCT_HDR_DEV_TYPE_OFF;
+ break;
+ default:
+ dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
+ sas_dev->dev_type);
+ }
+
+ qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
+ (device->linkrate << ITCT_HDR_MCR_OFF) |
+ (1 << ITCT_HDR_VLN_OFF) |
+ (ITCT_HDR_SMP_TIMEOUT << ITCT_HDR_SMP_TIMEOUT_OFF) |
+ (1 << ITCT_HDR_AWT_CONTINUE_OFF) |
+ (port->id << ITCT_HDR_PORT_ID_OFF));
+ itct->qw0 = cpu_to_le64(qw0);
+
+ /* qw1 */
+ memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE);
+ itct->sas_addr = cpu_to_le64(__swab64(sas_addr));
+
+ /* qw2 */
+ if (!dev_is_sata(device))
+ itct->qw2 = cpu_to_le64((5000ULL << ITCT_HDR_INLT_OFF) |
+ (0x1ULL << ITCT_HDR_BITLT_OFF) |
+ (0x32ULL << ITCT_HDR_MCTLT_OFF) |
+ (0x1ULL << ITCT_HDR_RTOLT_OFF));
+}
+
+static int clear_itct_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *sas_dev)
+{
+ DECLARE_COMPLETION_ONSTACK(completion);
+ u64 dev_id = sas_dev->device_id;
+ struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
+ u32 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
+ struct device *dev = hisi_hba->dev;
+ int i;
+
+ sas_dev->completion = &completion;
+
+ /* clear the itct interrupt state */
+ if (ENT_INT_SRC3_ITC_INT_MSK & reg_val)
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
+ ENT_INT_SRC3_ITC_INT_MSK);
+
+ /* need to set register twice to clear ITCT for v2 hw */
+ for (i = 0; i < 2; i++) {
+ reg_val = ITCT_CLR_EN_MSK | (dev_id & ITCT_DEV_MSK);
+ hisi_sas_write32(hisi_hba, ITCT_CLR, reg_val);
+ if (!wait_for_completion_timeout(sas_dev->completion,
+ CLEAR_ITCT_TIMEOUT * HZ)) {
+ dev_warn(dev, "failed to clear ITCT\n");
+ return -ETIMEDOUT;
+ }
+
+ memset(itct, 0, sizeof(struct hisi_sas_itct));
+ }
+ return 0;
+}
+
+static void free_device_v2_hw(struct hisi_sas_device *sas_dev)
+{
+ struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
+
+ /* SoC bug workaround */
+ if (dev_is_sata(sas_dev->sas_device))
+ clear_bit(sas_dev->sata_idx, hisi_hba->sata_dev_bitmap);
+}
+
+static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
+{
+ int i, reset_val;
+ u32 val;
+ unsigned long end_time;
+ struct device *dev = hisi_hba->dev;
+
+ /* The mask needs to be set depending on the number of phys */
+ if (hisi_hba->n_phy == 9)
+ reset_val = 0x1fffff;
+ else
+ reset_val = 0x7ffff;
+
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
+
+ /* Disable all of the PHYs */
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ u32 phy_cfg = hisi_sas_phy_read32(hisi_hba, i, PHY_CFG);
+
+ phy_cfg &= ~PHY_CTRL_RESET_MSK;
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CFG, phy_cfg);
+ }
+ udelay(50);
+
+ /* Ensure DMA tx & rx idle */
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ u32 dma_tx_status, dma_rx_status;
+
+ end_time = jiffies + msecs_to_jiffies(1000);
+
+ while (1) {
+ dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
+ DMA_TX_STATUS);
+ dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
+ DMA_RX_STATUS);
+
+ if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
+ !(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
+ break;
+
+ msleep(20);
+ if (time_after(jiffies, end_time))
+ return -EIO;
+ }
+ }
+
+ /* Ensure axi bus idle */
+ end_time = jiffies + msecs_to_jiffies(1000);
+ while (1) {
+ u32 axi_status =
+ hisi_sas_read32(hisi_hba, AXI_CFG);
+
+ if (axi_status == 0)
+ break;
+
+ msleep(20);
+ if (time_after(jiffies, end_time))
+ return -EIO;
+ }
+
+ if (ACPI_HANDLE(dev)) {
+ acpi_status s;
+
+ s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL);
+ if (ACPI_FAILURE(s)) {
+ dev_err(dev, "Reset failed\n");
+ return -EIO;
+ }
+ } else if (hisi_hba->ctrl) {
+ /* reset and disable clock*/
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg,
+ reset_val);
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4,
+ reset_val);
+ msleep(1);
+ regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
+ if (reset_val != (val & reset_val)) {
+ dev_err(dev, "SAS reset fail.\n");
+ return -EIO;
+ }
+
+ /* De-reset and enable clock*/
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4,
+ reset_val);
+ regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg,
+ reset_val);
+ msleep(1);
+ regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg,
+ &val);
+ if (val & reset_val) {
+ dev_err(dev, "SAS de-reset fail.\n");
+ return -EIO;
+ }
+ } else {
+ dev_err(dev, "no reset method\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* This function needs to be called after resetting SAS controller. */
+static void phys_reject_stp_links_v2_hw(struct hisi_hba *hisi_hba)
+{
+ u32 cfg;
+ int phy_no;
+
+ hisi_hba->reject_stp_links_msk = (1 << hisi_hba->n_phy) - 1;
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
+ cfg = hisi_sas_phy_read32(hisi_hba, phy_no, CON_CONTROL);
+ if (!(cfg & CON_CONTROL_CFG_OPEN_ACC_STP_MSK))
+ continue;
+
+ cfg &= ~CON_CONTROL_CFG_OPEN_ACC_STP_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, CON_CONTROL, cfg);
+ }
+}
+
+static void phys_try_accept_stp_links_v2_hw(struct hisi_hba *hisi_hba)
+{
+ int phy_no;
+ u32 dma_tx_dfx1;
+
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
+ if (!(hisi_hba->reject_stp_links_msk & BIT(phy_no)))
+ continue;
+
+ dma_tx_dfx1 = hisi_sas_phy_read32(hisi_hba, phy_no,
+ DMA_TX_DFX1);
+ if (dma_tx_dfx1 & DMA_TX_DFX1_IPTT_MSK) {
+ u32 cfg = hisi_sas_phy_read32(hisi_hba,
+ phy_no, CON_CONTROL);
+
+ cfg |= CON_CONTROL_CFG_OPEN_ACC_STP_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ CON_CONTROL, cfg);
+ clear_bit(phy_no, &hisi_hba->reject_stp_links_msk);
+ }
+ }
+}
+
+static const struct signal_attenuation_s x6000 = {9200, 0, 10476};
+static const struct sig_atten_lu_s sig_atten_lu[] = {
+ { &x6000, 0x3016a68 },
+};
+
+static void init_reg_v2_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ u32 sas_phy_ctrl = 0x30b9908;
+ u32 signal[3];
+ int i;
+
+ /* Global registers init */
+
+ /* Deal with am-max-transmissions quirk */
+ if (device_property_present(dev, "hip06-sas-v2-quirk-amt")) {
+ hisi_sas_write32(hisi_hba, AM_CFG_MAX_TRANS, 0x2020);
+ hisi_sas_write32(hisi_hba, AM_CFG_SINGLE_PORT_MAX_TRANS,
+ 0x2020);
+ } /* Else, use defaults -> do nothing */
+
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
+ (u32)((1ULL << hisi_hba->queue_count) - 1));
+ hisi_sas_write32(hisi_hba, AXI_USER1, 0xc0000000);
+ hisi_sas_write32(hisi_hba, AXI_USER2, 0x10000);
+ hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x0);
+ hisi_sas_write32(hisi_hba, HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL, 0x7FF);
+ hisi_sas_write32(hisi_hba, OPENA_WT_CONTI_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x1F4);
+ hisi_sas_write32(hisi_hba, MAX_CON_TIME_LIMIT_TIME, 0x32);
+ hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x1);
+ hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x60);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x3);
+ hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0x0);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0x7efefefe);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0x7efefefe);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0x7ffe20fe);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xfff00c30);
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0);
+
+ hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 1);
+ hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1);
+
+ /* Get sas_phy_ctrl value to deal with TX FFE issue. */
+ if (!device_property_read_u32_array(dev, "hisilicon,signal-attenuation",
+ signal, ARRAY_SIZE(signal))) {
+ for (i = 0; i < ARRAY_SIZE(sig_atten_lu); i++) {
+ const struct sig_atten_lu_s *lookup = &sig_atten_lu[i];
+ const struct signal_attenuation_s *att = lookup->att;
+
+ if ((signal[0] == att->de_emphasis) &&
+ (signal[1] == att->preshoot) &&
+ (signal[2] == att->boost)) {
+ sas_phy_ctrl = lookup->sas_phy_ctrl;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(sig_atten_lu))
+ dev_warn(dev, "unknown signal attenuation values, using default PHY ctrl config\n");
+ }
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ u32 prog_phy_link_rate = 0x800;
+
+ if (!sas_phy->phy || (sas_phy->phy->maximum_linkrate <
+ SAS_LINK_RATE_1_5_GBPS)) {
+ prog_phy_link_rate = 0x855;
+ } else {
+ enum sas_linkrate max = sas_phy->phy->maximum_linkrate;
+
+ prog_phy_link_rate =
+ hisi_sas_get_prog_phy_linkrate_mask(max) |
+ 0x800;
+ }
+ hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE,
+ prog_phy_link_rate);
+ hisi_sas_phy_write32(hisi_hba, i, SAS_PHY_CTRL, sas_phy_ctrl);
+ hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
+ hisi_sas_phy_write32(hisi_hba, i, SL_CONTROL, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, TXID_AUTO, 0x2);
+ hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x8);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xfff87fff);
+ hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xff857fff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbfe);
+ hisi_sas_phy_write32(hisi_hba, i, SL_CFG, 0x13f801fc);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x0);
+ if (hisi_hba->refclk_frequency_mhz == 66)
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, 0x199B694);
+ /* else, do nothing -> leave it how you found it */
+ }
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ /* Delivery queue */
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+
+ /* Completion queue */
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+ }
+
+ /* itct */
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->itct_dma));
+
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->itct_dma));
+
+ /* iost */
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->iost_dma));
+
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->iost_dma));
+
+ /* breakpoint */
+ hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_LO,
+ lower_32_bits(hisi_hba->breakpoint_dma));
+
+ hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_HI,
+ upper_32_bits(hisi_hba->breakpoint_dma));
+
+ /* SATA broken msg */
+ hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_LO,
+ lower_32_bits(hisi_hba->sata_breakpoint_dma));
+
+ hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_HI,
+ upper_32_bits(hisi_hba->sata_breakpoint_dma));
+
+ /* SATA initial fis */
+ hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_LO,
+ lower_32_bits(hisi_hba->initial_fis_dma));
+
+ hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI,
+ upper_32_bits(hisi_hba->initial_fis_dma));
+}
+
+static void link_timeout_enable_link(struct timer_list *t)
+{
+ struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
+ int i, reg_val;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ if (hisi_hba->reject_stp_links_msk & BIT(i))
+ continue;
+
+ reg_val = hisi_sas_phy_read32(hisi_hba, i, CON_CONTROL);
+ if (!(reg_val & BIT(0))) {
+ hisi_sas_phy_write32(hisi_hba, i,
+ CON_CONTROL, 0x7);
+ break;
+ }
+ }
+
+ hisi_hba->timer.function = link_timeout_disable_link;
+ mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(900));
+}
+
+static void link_timeout_disable_link(struct timer_list *t)
+{
+ struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
+ int i, reg_val;
+
+ reg_val = hisi_sas_read32(hisi_hba, PHY_STATE);
+ for (i = 0; i < hisi_hba->n_phy && reg_val; i++) {
+ if (hisi_hba->reject_stp_links_msk & BIT(i))
+ continue;
+
+ if (reg_val & BIT(i)) {
+ hisi_sas_phy_write32(hisi_hba, i,
+ CON_CONTROL, 0x6);
+ break;
+ }
+ }
+
+ hisi_hba->timer.function = link_timeout_enable_link;
+ mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(100));
+}
+
+static void set_link_timer_quirk(struct hisi_hba *hisi_hba)
+{
+ hisi_hba->timer.function = link_timeout_disable_link;
+ hisi_hba->timer.expires = jiffies + msecs_to_jiffies(1000);
+ add_timer(&hisi_hba->timer);
+}
+
+static int hw_init_v2_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ rc = reset_hw_v2_hw(hisi_hba);
+ if (rc) {
+ dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc);
+ return rc;
+ }
+
+ msleep(100);
+ init_reg_v2_hw(hisi_hba);
+
+ return 0;
+}
+
+static void enable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg |= PHY_CFG_ENA_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static bool is_sata_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 context;
+
+ context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
+ if (context & (1 << phy_no))
+ return true;
+
+ return false;
+}
+
+static bool tx_fifo_is_empty_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 dfx_val;
+
+ dfx_val = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX1);
+
+ if (dfx_val & BIT(16))
+ return false;
+
+ return true;
+}
+
+static bool axi_bus_is_idle_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ int i, max_loop = 1000;
+ struct device *dev = hisi_hba->dev;
+ u32 status, axi_status, dfx_val, dfx_tx_val;
+
+ for (i = 0; i < max_loop; i++) {
+ status = hisi_sas_read32_relaxed(hisi_hba,
+ AXI_MASTER_CFG_BASE + AM_CURR_TRANS_RETURN);
+
+ axi_status = hisi_sas_read32(hisi_hba, AXI_CFG);
+ dfx_val = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX1);
+ dfx_tx_val = hisi_sas_phy_read32(hisi_hba,
+ phy_no, DMA_TX_FIFO_DFX0);
+
+ if ((status == 0x3) && (axi_status == 0x0) &&
+ (dfx_val & BIT(20)) && (dfx_tx_val & BIT(10)))
+ return true;
+ udelay(10);
+ }
+ dev_err(dev, "bus is not idle phy%d, axi150:0x%x axi100:0x%x port204:0x%x port240:0x%x\n",
+ phy_no, status, axi_status,
+ dfx_val, dfx_tx_val);
+ return false;
+}
+
+static bool wait_io_done_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ int i, max_loop = 1000;
+ struct device *dev = hisi_hba->dev;
+ u32 status, tx_dfx0;
+
+ for (i = 0; i < max_loop; i++) {
+ status = hisi_sas_phy_read32(hisi_hba, phy_no, LINK_DFX2);
+ status = (status & 0x3fc0) >> 6;
+
+ if (status != 0x1)
+ return true;
+
+ tx_dfx0 = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX0);
+ if ((tx_dfx0 & 0x1ff) == 0x2)
+ return true;
+ udelay(10);
+ }
+ dev_err(dev, "IO not done phy%d, port264:0x%x port200:0x%x\n",
+ phy_no, status, tx_dfx0);
+ return false;
+}
+
+static bool allowed_disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ if (tx_fifo_is_empty_v2_hw(hisi_hba, phy_no))
+ return true;
+
+ if (!axi_bus_is_idle_v2_hw(hisi_hba, phy_no))
+ return false;
+
+ if (!wait_io_done_v2_hw(hisi_hba, phy_no))
+ return false;
+
+ return true;
+}
+
+
+static void disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg, axi_val, dfx0_val, txid_auto;
+ struct device *dev = hisi_hba->dev;
+
+ /* Close axi bus. */
+ axi_val = hisi_sas_read32(hisi_hba, AXI_MASTER_CFG_BASE +
+ AM_CTRL_GLOBAL);
+ axi_val |= 0x1;
+ hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
+ AM_CTRL_GLOBAL, axi_val);
+
+ if (is_sata_phy_v2_hw(hisi_hba, phy_no)) {
+ if (allowed_disable_phy_v2_hw(hisi_hba, phy_no))
+ goto do_disable;
+
+ /* Reset host controller. */
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ return;
+ }
+
+ dfx0_val = hisi_sas_phy_read32(hisi_hba, phy_no, PORT_DFX0);
+ dfx0_val = (dfx0_val & 0x1fc0) >> 6;
+ if (dfx0_val != 0x4)
+ goto do_disable;
+
+ if (!tx_fifo_is_empty_v2_hw(hisi_hba, phy_no)) {
+ dev_warn(dev, "phy%d, wait tx fifo need send break\n",
+ phy_no);
+ txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no,
+ TXID_AUTO);
+ txid_auto |= TXID_AUTO_CTB_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
+ txid_auto);
+ }
+
+do_disable:
+ cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+ cfg &= ~PHY_CFG_ENA_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+
+ /* Open axi bus. */
+ axi_val &= ~0x1;
+ hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
+ AM_CTRL_GLOBAL, axi_val);
+}
+
+static void start_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ config_id_frame_v2_hw(hisi_hba, phy_no);
+ config_phy_opt_mode_v2_hw(hisi_hba, phy_no);
+ enable_phy_v2_hw(hisi_hba, phy_no);
+}
+
+static void phy_hard_reset_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ u32 txid_auto;
+
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+ if (phy->identify.device_type == SAS_END_DEVICE) {
+ txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
+ txid_auto | TX_HARDRST_MSK);
+ }
+ msleep(100);
+ hisi_sas_phy_enable(hisi_hba, phy_no, 1);
+}
+
+static void phy_get_events_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct sas_phy *sphy = sas_phy->phy;
+ u32 err4_reg_val, err6_reg_val;
+
+ /* loss dword syn, phy reset problem */
+ err4_reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_ERR_CNT4_REG);
+
+ /* disparity err, invalid dword */
+ err6_reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_ERR_CNT6_REG);
+
+ sphy->loss_of_dword_sync_count += (err4_reg_val >> 16) & 0xFFFF;
+ sphy->phy_reset_problem_count += err4_reg_val & 0xFFFF;
+ sphy->invalid_dword_count += (err6_reg_val & 0xFF0000) >> 16;
+ sphy->running_disparity_error_count += err6_reg_val & 0xFF;
+}
+
+static void phys_init_v2_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+
+ if (!sas_phy->phy->enabled)
+ continue;
+
+ hisi_sas_phy_enable(hisi_hba, i, 1);
+ }
+}
+
+static void sl_notify_ssp_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 sl_control;
+
+ sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+ msleep(1);
+ sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+}
+
+static enum sas_linkrate phy_get_max_linkrate_v2_hw(void)
+{
+ return SAS_LINK_RATE_12_0_GBPS;
+}
+
+static void phy_set_linkrate_v2_hw(struct hisi_hba *hisi_hba, int phy_no,
+ struct sas_phy_linkrates *r)
+{
+ enum sas_linkrate max = r->maximum_linkrate;
+ u32 prog_phy_link_rate = 0x800;
+
+ prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
+ prog_phy_link_rate);
+}
+
+static int get_wideport_bitmap_v2_hw(struct hisi_hba *hisi_hba, int port_id)
+{
+ int i, bitmap = 0;
+ u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+ u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+
+ for (i = 0; i < (hisi_hba->n_phy < 9 ? hisi_hba->n_phy : 8); i++)
+ if (phy_state & 1 << i)
+ if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
+ bitmap |= 1 << i;
+
+ if (hisi_hba->n_phy == 9) {
+ u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
+
+ if (phy_state & 1 << 8)
+ if (((port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
+ PORT_STATE_PHY8_PORT_NUM_OFF) == port_id)
+ bitmap |= 1 << 9;
+ }
+
+ return bitmap;
+}
+
+/* DQ lock must be taken here */
+static void start_delivery_v2_hw(struct hisi_sas_dq *dq)
+{
+ struct hisi_hba *hisi_hba = dq->hisi_hba;
+ struct hisi_sas_slot *s, *s1, *s2 = NULL;
+ int dlvry_queue = dq->id;
+ int wp;
+
+ list_for_each_entry_safe(s, s1, &dq->list, delivery) {
+ if (!s->ready)
+ break;
+ s2 = s;
+ list_del(&s->delivery);
+ }
+
+ if (!s2)
+ return;
+
+ /*
+ * Ensure that memories for slots built on other CPUs is observed.
+ */
+ smp_rmb();
+ wp = (s2->dlvry_queue_slot + 1) % HISI_SAS_QUEUE_SLOTS;
+
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), wp);
+}
+
+static void prep_prd_sge_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ struct hisi_sas_cmd_hdr *hdr,
+ struct scatterlist *scatter,
+ int n_elem)
+{
+ struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(scatter, sg, n_elem, i) {
+ struct hisi_sas_sge *entry = &sge_page->sge[i];
+
+ entry->addr = cpu_to_le64(sg_dma_address(sg));
+ entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
+ entry->data_len = cpu_to_le32(sg_dma_len(sg));
+ entry->data_off = 0;
+ }
+
+ hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
+
+ hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
+}
+
+static void prep_smp_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_port *port = slot->port;
+ struct scatterlist *sg_req;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ dma_addr_t req_dma_addr;
+ unsigned int req_len;
+
+ /* req */
+ sg_req = &task->smp_task.smp_req;
+ req_dma_addr = sg_dma_address(sg_req);
+ req_len = sg_dma_len(&task->smp_task.smp_req);
+
+ /* create header */
+ /* dw0 */
+ hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
+ (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
+ (2 << CMD_HDR_CMD_OFF)); /* smp */
+
+ /* map itct entry */
+ hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) |
+ (1 << CMD_HDR_FRAME_TYPE_OFF) |
+ (DIR_NO_DATA << CMD_HDR_DIR_OFF));
+
+ /* dw2 */
+ hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) |
+ (HISI_SAS_MAX_SMP_RESP_SZ / 4 <<
+ CMD_HDR_MRFL_OFF));
+
+ hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
+
+ hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+}
+
+static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_sas_port *port = slot->port;
+ struct sas_ssp_task *ssp_task = &task->ssp_task;
+ struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+ struct hisi_sas_tmf_task *tmf = slot->tmf;
+ int has_data = 0, priority = !!tmf;
+ u8 *buf_cmd;
+ u32 dw1 = 0, dw2 = 0;
+
+ hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
+ (2 << CMD_HDR_TLR_CTRL_OFF) |
+ (port->id << CMD_HDR_PORT_OFF) |
+ (priority << CMD_HDR_PRIORITY_OFF) |
+ (1 << CMD_HDR_CMD_OFF)); /* ssp */
+
+ dw1 = 1 << CMD_HDR_VDTL_OFF;
+ if (tmf) {
+ dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF;
+ dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF;
+ } else {
+ dw1 |= 1 << CMD_HDR_FRAME_TYPE_OFF;
+ switch (scsi_cmnd->sc_data_direction) {
+ case DMA_TO_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
+ break;
+ case DMA_FROM_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
+ break;
+ default:
+ dw1 &= ~CMD_HDR_DIR_MSK;
+ }
+ }
+
+ /* map itct entry */
+ dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
+ hdr->dw1 = cpu_to_le32(dw1);
+
+ dw2 = (((sizeof(struct ssp_command_iu) + sizeof(struct ssp_frame_hdr)
+ + 3) / 4) << CMD_HDR_CFL_OFF) |
+ ((HISI_SAS_MAX_SSP_RESP_SZ / 4) << CMD_HDR_MRFL_OFF) |
+ (2 << CMD_HDR_SG_MOD_OFF);
+ hdr->dw2 = cpu_to_le32(dw2);
+
+ hdr->transfer_tags = cpu_to_le32(slot->idx);
+
+ if (has_data)
+ prep_prd_sge_v2_hw(hisi_hba, slot, hdr, task->scatter,
+ slot->n_elem);
+
+ hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
+ hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+
+ buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
+ sizeof(struct ssp_frame_hdr);
+
+ memcpy(buf_cmd, &task->ssp_task.LUN, 8);
+ if (!tmf) {
+ buf_cmd[9] = task->ssp_task.task_attr |
+ (task->ssp_task.task_prio << 3);
+ memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
+ task->ssp_task.cmd->cmd_len);
+ } else {
+ buf_cmd[10] = tmf->tmf;
+ switch (tmf->tmf) {
+ case TMF_ABORT_TASK:
+ case TMF_QUERY_TASK:
+ buf_cmd[12] =
+ (tmf->tag_of_task_to_be_managed >> 8) & 0xff;
+ buf_cmd[13] =
+ tmf->tag_of_task_to_be_managed & 0xff;
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+#define TRANS_TX_ERR 0
+#define TRANS_RX_ERR 1
+#define DMA_TX_ERR 2
+#define SIPC_RX_ERR 3
+#define DMA_RX_ERR 4
+
+#define DMA_TX_ERR_OFF 0
+#define DMA_TX_ERR_MSK (0xffff << DMA_TX_ERR_OFF)
+#define SIPC_RX_ERR_OFF 16
+#define SIPC_RX_ERR_MSK (0xffff << SIPC_RX_ERR_OFF)
+
+static int parse_trans_tx_err_code_v2_hw(u32 err_msk)
+{
+ static const u8 trans_tx_err_code_prio[] = {
+ TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS,
+ TRANS_TX_ERR_PHY_NOT_ENABLE,
+ TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION,
+ TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION,
+ TRANS_TX_OPEN_CNX_ERR_BY_OTHER,
+ RESERVED0,
+ TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT,
+ TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY,
+ TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED,
+ TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED,
+ TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION,
+ TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD,
+ TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER,
+ TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED,
+ TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT,
+ TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION,
+ TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED,
+ TRANS_TX_ERR_WITH_CLOSE_PHYDISALE,
+ TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT,
+ TRANS_TX_ERR_WITH_CLOSE_COMINIT,
+ TRANS_TX_ERR_WITH_BREAK_TIMEOUT,
+ TRANS_TX_ERR_WITH_BREAK_REQUEST,
+ TRANS_TX_ERR_WITH_BREAK_RECEVIED,
+ TRANS_TX_ERR_WITH_CLOSE_TIMEOUT,
+ TRANS_TX_ERR_WITH_CLOSE_NORMAL,
+ TRANS_TX_ERR_WITH_NAK_RECEVIED,
+ TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT,
+ TRANS_TX_ERR_WITH_CREDIT_TIMEOUT,
+ TRANS_TX_ERR_WITH_IPTT_CONFLICT,
+ TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS,
+ TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT,
+ };
+ int index, i;
+
+ for (i = 0; i < ARRAY_SIZE(trans_tx_err_code_prio); i++) {
+ index = trans_tx_err_code_prio[i] - TRANS_TX_FAIL_BASE;
+ if (err_msk & (1 << index))
+ return trans_tx_err_code_prio[i];
+ }
+ return -1;
+}
+
+static int parse_trans_rx_err_code_v2_hw(u32 err_msk)
+{
+ static const u8 trans_rx_err_code_prio[] = {
+ TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR,
+ TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR,
+ TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM,
+ TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR,
+ TRANS_RX_ERR_WITH_RXFIS_CRC_ERR,
+ TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN,
+ TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP,
+ TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN,
+ TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE,
+ TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT,
+ TRANS_RX_ERR_WITH_CLOSE_COMINIT,
+ TRANS_RX_ERR_WITH_BREAK_TIMEOUT,
+ TRANS_RX_ERR_WITH_BREAK_REQUEST,
+ TRANS_RX_ERR_WITH_BREAK_RECEVIED,
+ RESERVED1,
+ TRANS_RX_ERR_WITH_CLOSE_NORMAL,
+ TRANS_RX_ERR_WITH_DATA_LEN0,
+ TRANS_RX_ERR_WITH_BAD_HASH,
+ TRANS_RX_XRDY_WLEN_ZERO_ERR,
+ TRANS_RX_SSP_FRM_LEN_ERR,
+ RESERVED2,
+ RESERVED3,
+ RESERVED4,
+ RESERVED5,
+ TRANS_RX_ERR_WITH_BAD_FRM_TYPE,
+ TRANS_RX_SMP_FRM_LEN_ERR,
+ TRANS_RX_SMP_RESP_TIMEOUT_ERR,
+ RESERVED6,
+ RESERVED7,
+ RESERVED8,
+ RESERVED9,
+ TRANS_RX_R_ERR,
+ };
+ int index, i;
+
+ for (i = 0; i < ARRAY_SIZE(trans_rx_err_code_prio); i++) {
+ index = trans_rx_err_code_prio[i] - TRANS_RX_FAIL_BASE;
+ if (err_msk & (1 << index))
+ return trans_rx_err_code_prio[i];
+ }
+ return -1;
+}
+
+static int parse_dma_tx_err_code_v2_hw(u32 err_msk)
+{
+ static const u8 dma_tx_err_code_prio[] = {
+ DMA_TX_UNEXP_XFER_ERR,
+ DMA_TX_UNEXP_RETRANS_ERR,
+ DMA_TX_XFER_LEN_OVERFLOW,
+ DMA_TX_XFER_OFFSET_ERR,
+ DMA_TX_RAM_ECC_ERR,
+ DMA_TX_DIF_LEN_ALIGN_ERR,
+ DMA_TX_DIF_CRC_ERR,
+ DMA_TX_DIF_APP_ERR,
+ DMA_TX_DIF_RPP_ERR,
+ DMA_TX_DATA_SGL_OVERFLOW,
+ DMA_TX_DIF_SGL_OVERFLOW,
+ };
+ int index, i;
+
+ for (i = 0; i < ARRAY_SIZE(dma_tx_err_code_prio); i++) {
+ index = dma_tx_err_code_prio[i] - DMA_TX_ERR_BASE;
+ err_msk = err_msk & DMA_TX_ERR_MSK;
+ if (err_msk & (1 << index))
+ return dma_tx_err_code_prio[i];
+ }
+ return -1;
+}
+
+static int parse_sipc_rx_err_code_v2_hw(u32 err_msk)
+{
+ static const u8 sipc_rx_err_code_prio[] = {
+ SIPC_RX_FIS_STATUS_ERR_BIT_VLD,
+ SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR,
+ SIPC_RX_FIS_STATUS_BSY_BIT_ERR,
+ SIPC_RX_WRSETUP_LEN_ODD_ERR,
+ SIPC_RX_WRSETUP_LEN_ZERO_ERR,
+ SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR,
+ SIPC_RX_NCQ_WRSETUP_OFFSET_ERR,
+ SIPC_RX_NCQ_WRSETUP_AUTO_ACTIVE_ERR,
+ SIPC_RX_SATA_UNEXP_FIS_ERR,
+ SIPC_RX_WRSETUP_ESTATUS_ERR,
+ SIPC_RX_DATA_UNDERFLOW_ERR,
+ };
+ int index, i;
+
+ for (i = 0; i < ARRAY_SIZE(sipc_rx_err_code_prio); i++) {
+ index = sipc_rx_err_code_prio[i] - SIPC_RX_ERR_BASE;
+ err_msk = err_msk & SIPC_RX_ERR_MSK;
+ if (err_msk & (1 << (index + 0x10)))
+ return sipc_rx_err_code_prio[i];
+ }
+ return -1;
+}
+
+static int parse_dma_rx_err_code_v2_hw(u32 err_msk)
+{
+ static const u8 dma_rx_err_code_prio[] = {
+ DMA_RX_UNKNOWN_FRM_ERR,
+ DMA_RX_DATA_LEN_OVERFLOW,
+ DMA_RX_DATA_LEN_UNDERFLOW,
+ DMA_RX_DATA_OFFSET_ERR,
+ RESERVED10,
+ DMA_RX_SATA_FRAME_TYPE_ERR,
+ DMA_RX_RESP_BUF_OVERFLOW,
+ DMA_RX_UNEXP_RETRANS_RESP_ERR,
+ DMA_RX_UNEXP_NORM_RESP_ERR,
+ DMA_RX_UNEXP_RDFRAME_ERR,
+ DMA_RX_PIO_DATA_LEN_ERR,
+ DMA_RX_RDSETUP_STATUS_ERR,
+ DMA_RX_RDSETUP_STATUS_DRQ_ERR,
+ DMA_RX_RDSETUP_STATUS_BSY_ERR,
+ DMA_RX_RDSETUP_LEN_ODD_ERR,
+ DMA_RX_RDSETUP_LEN_ZERO_ERR,
+ DMA_RX_RDSETUP_LEN_OVER_ERR,
+ DMA_RX_RDSETUP_OFFSET_ERR,
+ DMA_RX_RDSETUP_ACTIVE_ERR,
+ DMA_RX_RDSETUP_ESTATUS_ERR,
+ DMA_RX_RAM_ECC_ERR,
+ DMA_RX_DIF_CRC_ERR,
+ DMA_RX_DIF_APP_ERR,
+ DMA_RX_DIF_RPP_ERR,
+ DMA_RX_DATA_SGL_OVERFLOW,
+ DMA_RX_DIF_SGL_OVERFLOW,
+ };
+ int index, i;
+
+ for (i = 0; i < ARRAY_SIZE(dma_rx_err_code_prio); i++) {
+ index = dma_rx_err_code_prio[i] - DMA_RX_ERR_BASE;
+ if (err_msk & (1 << index))
+ return dma_rx_err_code_prio[i];
+ }
+ return -1;
+}
+
+/* by default, task resp is complete */
+static void slot_err_v2_hw(struct hisi_hba *hisi_hba,
+ struct sas_task *task,
+ struct hisi_sas_slot *slot,
+ int err_phase)
+{
+ struct task_status_struct *ts = &task->task_status;
+ struct hisi_sas_err_record_v2 *err_record =
+ hisi_sas_status_buf_addr_mem(slot);
+ u32 trans_tx_fail_type = le32_to_cpu(err_record->trans_tx_fail_type);
+ u32 trans_rx_fail_type = le32_to_cpu(err_record->trans_rx_fail_type);
+ u16 dma_tx_err_type = le16_to_cpu(err_record->dma_tx_err_type);
+ u16 sipc_rx_err_type = le16_to_cpu(err_record->sipc_rx_err_type);
+ u32 dma_rx_err_type = le32_to_cpu(err_record->dma_rx_err_type);
+ struct hisi_sas_complete_v2_hdr *complete_queue =
+ hisi_hba->complete_hdr[slot->cmplt_queue];
+ struct hisi_sas_complete_v2_hdr *complete_hdr =
+ &complete_queue[slot->cmplt_queue_slot];
+ u32 dw0 = le32_to_cpu(complete_hdr->dw0);
+ int error = -1;
+
+ if (err_phase == 1) {
+ /* error in TX phase, the priority of error is: DW2 > DW0 */
+ error = parse_dma_tx_err_code_v2_hw(dma_tx_err_type);
+ if (error == -1)
+ error = parse_trans_tx_err_code_v2_hw(
+ trans_tx_fail_type);
+ } else if (err_phase == 2) {
+ /* error in RX phase, the priority is: DW1 > DW3 > DW2 */
+ error = parse_trans_rx_err_code_v2_hw(trans_rx_fail_type);
+ if (error == -1) {
+ error = parse_dma_rx_err_code_v2_hw(
+ dma_rx_err_type);
+ if (error == -1)
+ error = parse_sipc_rx_err_code_v2_hw(
+ sipc_rx_err_type);
+ }
+ }
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SSP:
+ {
+ switch (error) {
+ case TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_NO_DEST;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_EPROTO;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_CONN_RATE;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_BAD_DEST;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
+ break;
+ }
+ case DMA_RX_UNEXP_NORM_RESP_ERR:
+ case TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION:
+ case DMA_RX_RESP_BUF_OVERFLOW:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_UNKNOWN;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER:
+ {
+ /* not sure */
+ ts->stat = SAS_DEV_NO_RESPONSE;
+ break;
+ }
+ case DMA_RX_DATA_LEN_OVERFLOW:
+ {
+ ts->stat = SAS_DATA_OVERRUN;
+ ts->residual = 0;
+ break;
+ }
+ case DMA_RX_DATA_LEN_UNDERFLOW:
+ {
+ ts->residual = trans_tx_fail_type;
+ ts->stat = SAS_DATA_UNDERRUN;
+ break;
+ }
+ case TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS:
+ case TRANS_TX_ERR_PHY_NOT_ENABLE:
+ case TRANS_TX_OPEN_CNX_ERR_BY_OTHER:
+ case TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT:
+ case TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD:
+ case TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED:
+ case TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT:
+ case TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED:
+ case TRANS_TX_ERR_WITH_BREAK_TIMEOUT:
+ case TRANS_TX_ERR_WITH_BREAK_REQUEST:
+ case TRANS_TX_ERR_WITH_BREAK_RECEVIED:
+ case TRANS_TX_ERR_WITH_CLOSE_TIMEOUT:
+ case TRANS_TX_ERR_WITH_CLOSE_NORMAL:
+ case TRANS_TX_ERR_WITH_CLOSE_PHYDISALE:
+ case TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT:
+ case TRANS_TX_ERR_WITH_CLOSE_COMINIT:
+ case TRANS_TX_ERR_WITH_NAK_RECEVIED:
+ case TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT:
+ case TRANS_TX_ERR_WITH_CREDIT_TIMEOUT:
+ case TRANS_TX_ERR_WITH_IPTT_CONFLICT:
+ case TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR:
+ case TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR:
+ case TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM:
+ case TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN:
+ case TRANS_RX_ERR_WITH_BREAK_TIMEOUT:
+ case TRANS_RX_ERR_WITH_BREAK_REQUEST:
+ case TRANS_RX_ERR_WITH_BREAK_RECEVIED:
+ case TRANS_RX_ERR_WITH_CLOSE_NORMAL:
+ case TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT:
+ case TRANS_RX_ERR_WITH_CLOSE_COMINIT:
+ case TRANS_TX_ERR_FRAME_TXED:
+ case TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE:
+ case TRANS_RX_ERR_WITH_DATA_LEN0:
+ case TRANS_RX_ERR_WITH_BAD_HASH:
+ case TRANS_RX_XRDY_WLEN_ZERO_ERR:
+ case TRANS_RX_SSP_FRM_LEN_ERR:
+ case TRANS_RX_ERR_WITH_BAD_FRM_TYPE:
+ case DMA_TX_DATA_SGL_OVERFLOW:
+ case DMA_TX_UNEXP_XFER_ERR:
+ case DMA_TX_UNEXP_RETRANS_ERR:
+ case DMA_TX_XFER_LEN_OVERFLOW:
+ case DMA_TX_XFER_OFFSET_ERR:
+ case SIPC_RX_DATA_UNDERFLOW_ERR:
+ case DMA_RX_DATA_SGL_OVERFLOW:
+ case DMA_RX_DATA_OFFSET_ERR:
+ case DMA_RX_RDSETUP_LEN_ODD_ERR:
+ case DMA_RX_RDSETUP_LEN_ZERO_ERR:
+ case DMA_RX_RDSETUP_LEN_OVER_ERR:
+ case DMA_RX_SATA_FRAME_TYPE_ERR:
+ case DMA_RX_UNKNOWN_FRM_ERR:
+ {
+ /* This will request a retry */
+ ts->stat = SAS_QUEUE_FULL;
+ slot->abort = 1;
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ break;
+ case SAS_PROTOCOL_SMP:
+ ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ break;
+
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ {
+ switch (error) {
+ case TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_NO_DEST;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER:
+ {
+ ts->resp = SAS_TASK_UNDELIVERED;
+ ts->stat = SAS_DEV_NO_RESPONSE;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_EPROTO;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_CONN_RATE;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_CONN_RATE;
+ break;
+ }
+ case TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
+ break;
+ }
+ case DMA_RX_RESP_BUF_OVERFLOW:
+ case DMA_RX_UNEXP_NORM_RESP_ERR:
+ case TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION:
+ {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_UNKNOWN;
+ break;
+ }
+ case DMA_RX_DATA_LEN_OVERFLOW:
+ {
+ ts->stat = SAS_DATA_OVERRUN;
+ ts->residual = 0;
+ break;
+ }
+ case DMA_RX_DATA_LEN_UNDERFLOW:
+ {
+ ts->residual = trans_tx_fail_type;
+ ts->stat = SAS_DATA_UNDERRUN;
+ break;
+ }
+ case TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS:
+ case TRANS_TX_ERR_PHY_NOT_ENABLE:
+ case TRANS_TX_OPEN_CNX_ERR_BY_OTHER:
+ case TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT:
+ case TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD:
+ case TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED:
+ case TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT:
+ case TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED:
+ case TRANS_TX_ERR_WITH_BREAK_TIMEOUT:
+ case TRANS_TX_ERR_WITH_BREAK_REQUEST:
+ case TRANS_TX_ERR_WITH_BREAK_RECEVIED:
+ case TRANS_TX_ERR_WITH_CLOSE_TIMEOUT:
+ case TRANS_TX_ERR_WITH_CLOSE_NORMAL:
+ case TRANS_TX_ERR_WITH_CLOSE_PHYDISALE:
+ case TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT:
+ case TRANS_TX_ERR_WITH_CLOSE_COMINIT:
+ case TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT:
+ case TRANS_TX_ERR_WITH_CREDIT_TIMEOUT:
+ case TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS:
+ case TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT:
+ case TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM:
+ case TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR:
+ case TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR:
+ case TRANS_RX_ERR_WITH_RXFIS_CRC_ERR:
+ case TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN:
+ case TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP:
+ case TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN:
+ case TRANS_RX_ERR_WITH_BREAK_TIMEOUT:
+ case TRANS_RX_ERR_WITH_BREAK_REQUEST:
+ case TRANS_RX_ERR_WITH_BREAK_RECEVIED:
+ case TRANS_RX_ERR_WITH_CLOSE_NORMAL:
+ case TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE:
+ case TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT:
+ case TRANS_RX_ERR_WITH_CLOSE_COMINIT:
+ case TRANS_RX_ERR_WITH_DATA_LEN0:
+ case TRANS_RX_ERR_WITH_BAD_HASH:
+ case TRANS_RX_XRDY_WLEN_ZERO_ERR:
+ case TRANS_RX_ERR_WITH_BAD_FRM_TYPE:
+ case DMA_TX_DATA_SGL_OVERFLOW:
+ case DMA_TX_UNEXP_XFER_ERR:
+ case DMA_TX_UNEXP_RETRANS_ERR:
+ case DMA_TX_XFER_LEN_OVERFLOW:
+ case DMA_TX_XFER_OFFSET_ERR:
+ case SIPC_RX_FIS_STATUS_ERR_BIT_VLD:
+ case SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR:
+ case SIPC_RX_FIS_STATUS_BSY_BIT_ERR:
+ case SIPC_RX_WRSETUP_LEN_ODD_ERR:
+ case SIPC_RX_WRSETUP_LEN_ZERO_ERR:
+ case SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR:
+ case SIPC_RX_SATA_UNEXP_FIS_ERR:
+ case DMA_RX_DATA_SGL_OVERFLOW:
+ case DMA_RX_DATA_OFFSET_ERR:
+ case DMA_RX_SATA_FRAME_TYPE_ERR:
+ case DMA_RX_UNEXP_RDFRAME_ERR:
+ case DMA_RX_PIO_DATA_LEN_ERR:
+ case DMA_RX_RDSETUP_STATUS_ERR:
+ case DMA_RX_RDSETUP_STATUS_DRQ_ERR:
+ case DMA_RX_RDSETUP_STATUS_BSY_ERR:
+ case DMA_RX_RDSETUP_LEN_ODD_ERR:
+ case DMA_RX_RDSETUP_LEN_ZERO_ERR:
+ case DMA_RX_RDSETUP_LEN_OVER_ERR:
+ case DMA_RX_RDSETUP_OFFSET_ERR:
+ case DMA_RX_RDSETUP_ACTIVE_ERR:
+ case DMA_RX_RDSETUP_ESTATUS_ERR:
+ case DMA_RX_UNKNOWN_FRM_ERR:
+ case TRANS_RX_SSP_FRM_LEN_ERR:
+ case TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY:
+ {
+ slot->abort = 1;
+ ts->stat = SAS_PHY_DOWN;
+ break;
+ }
+ default:
+ {
+ ts->stat = SAS_PROTO_RESPONSE;
+ break;
+ }
+ }
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static void slot_complete_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_device *sas_dev;
+ struct device *dev = hisi_hba->dev;
+ struct task_status_struct *ts;
+ struct domain_device *device;
+ struct sas_ha_struct *ha;
+ struct hisi_sas_complete_v2_hdr *complete_queue =
+ hisi_hba->complete_hdr[slot->cmplt_queue];
+ struct hisi_sas_complete_v2_hdr *complete_hdr =
+ &complete_queue[slot->cmplt_queue_slot];
+ unsigned long flags;
+ bool is_internal = slot->is_internal;
+ u32 dw0;
+
+ if (unlikely(!task || !task->lldd_task || !task->dev))
+ return;
+
+ ts = &task->task_status;
+ device = task->dev;
+ ha = device->port->ha;
+ sas_dev = device->lldd_dev;
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ task->task_state_flags &=
+ ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+ memset(ts, 0, sizeof(*ts));
+ ts->resp = SAS_TASK_COMPLETE;
+
+ if (unlikely(!sas_dev)) {
+ dev_dbg(dev, "slot complete: port has no device\n");
+ ts->stat = SAS_PHY_DOWN;
+ goto out;
+ }
+
+ /* Use SAS+TMF status codes */
+ dw0 = le32_to_cpu(complete_hdr->dw0);
+ switch ((dw0 & CMPLT_HDR_ABORT_STAT_MSK) >>
+ CMPLT_HDR_ABORT_STAT_OFF) {
+ case STAT_IO_ABORTED:
+ /* this io has been aborted by abort command */
+ ts->stat = SAS_ABORTED_TASK;
+ goto out;
+ case STAT_IO_COMPLETE:
+ /* internal abort command complete */
+ ts->stat = TMF_RESP_FUNC_SUCC;
+ del_timer(&slot->internal_abort_timer);
+ goto out;
+ case STAT_IO_NO_DEVICE:
+ ts->stat = TMF_RESP_FUNC_COMPLETE;
+ del_timer(&slot->internal_abort_timer);
+ goto out;
+ case STAT_IO_NOT_VALID:
+ /* abort single io, controller don't find
+ * the io need to abort
+ */
+ ts->stat = TMF_RESP_FUNC_FAILED;
+ del_timer(&slot->internal_abort_timer);
+ goto out;
+ default:
+ break;
+ }
+
+ if ((dw0 & CMPLT_HDR_ERX_MSK) && (!(dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) {
+ u32 err_phase = (dw0 & CMPLT_HDR_ERR_PHASE_MSK)
+ >> CMPLT_HDR_ERR_PHASE_OFF;
+ u32 *error_info = hisi_sas_status_buf_addr_mem(slot);
+
+ /* Analyse error happens on which phase TX or RX */
+ if (ERR_ON_TX_PHASE(err_phase))
+ slot_err_v2_hw(hisi_hba, task, slot, 1);
+ else if (ERR_ON_RX_PHASE(err_phase))
+ slot_err_v2_hw(hisi_hba, task, slot, 2);
+
+ if (ts->stat != SAS_DATA_UNDERRUN)
+ dev_info(dev, "erroneous completion iptt=%d task=%pK dev id=%d CQ hdr: 0x%x 0x%x 0x%x 0x%x Error info: 0x%x 0x%x 0x%x 0x%x\n",
+ slot->idx, task, sas_dev->device_id,
+ complete_hdr->dw0, complete_hdr->dw1,
+ complete_hdr->act, complete_hdr->dw3,
+ error_info[0], error_info[1],
+ error_info[2], error_info[3]);
+
+ if (unlikely(slot->abort)) {
+ sas_task_abort(task);
+ return;
+ }
+ goto out;
+ }
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SSP:
+ {
+ struct hisi_sas_status_buffer *status_buffer =
+ hisi_sas_status_buf_addr_mem(slot);
+ struct ssp_response_iu *iu = (struct ssp_response_iu *)
+ &status_buffer->iu[0];
+
+ sas_ssp_task_response(dev, task, iu);
+ break;
+ }
+ case SAS_PROTOCOL_SMP:
+ {
+ struct scatterlist *sg_resp = &task->smp_task.smp_resp;
+ void *to = page_address(sg_page(sg_resp));
+
+ ts->stat = SAS_SAM_STAT_GOOD;
+
+ dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
+ DMA_TO_DEVICE);
+ memcpy(to + sg_resp->offset,
+ hisi_sas_status_buf_addr_mem(slot) +
+ sizeof(struct hisi_sas_err_record),
+ sg_resp->length);
+ break;
+ }
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ {
+ ts->stat = SAS_SAM_STAT_GOOD;
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
+ break;
+ }
+ default:
+ ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ break;
+ }
+
+ if (!slot->port->port_attached) {
+ dev_warn(dev, "slot complete: port %d has removed\n",
+ slot->port->sas_port.id);
+ ts->stat = SAS_PHY_DOWN;
+ }
+
+out:
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ dev_info(dev, "slot complete: task(%pK) aborted\n", task);
+ return;
+ }
+ task->task_state_flags |= SAS_TASK_STATE_DONE;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ hisi_sas_slot_task_free(hisi_hba, task, slot);
+
+ if (!is_internal && (task->task_proto != SAS_PROTOCOL_SMP)) {
+ spin_lock_irqsave(&device->done_lock, flags);
+ if (test_bit(SAS_HA_FROZEN, &ha->state)) {
+ spin_unlock_irqrestore(&device->done_lock, flags);
+ dev_info(dev, "slot complete: task(%pK) ignored\n",
+ task);
+ return;
+ }
+ spin_unlock_irqrestore(&device->done_lock, flags);
+ }
+
+ if (task->task_done)
+ task->task_done(task);
+}
+
+static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct domain_device *device = task->dev;
+ struct domain_device *parent_dev = device->parent;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct asd_sas_port *sas_port = device->port;
+ struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
+ struct hisi_sas_tmf_task *tmf = slot->tmf;
+ u8 *buf_cmd;
+ int has_data = 0, hdr_tag = 0;
+ u32 dw0, dw1 = 0, dw2 = 0;
+
+ /* create header */
+ /* dw0 */
+ dw0 = port->id << CMD_HDR_PORT_OFF;
+ if (parent_dev && dev_is_expander(parent_dev->dev_type))
+ dw0 |= 3 << CMD_HDR_CMD_OFF;
+ else
+ dw0 |= 4 << CMD_HDR_CMD_OFF;
+
+ if (tmf && tmf->force_phy) {
+ dw0 |= CMD_HDR_FORCE_PHY_MSK;
+ dw0 |= (1 << tmf->phy_id) << CMD_HDR_PHY_ID_OFF;
+ }
+
+ hdr->dw0 = cpu_to_le32(dw0);
+
+ /* dw1 */
+ switch (task->data_dir) {
+ case DMA_TO_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
+ break;
+ case DMA_FROM_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
+ break;
+ default:
+ dw1 &= ~CMD_HDR_DIR_MSK;
+ }
+
+ if ((task->ata_task.fis.command == ATA_CMD_DEV_RESET) &&
+ (task->ata_task.fis.control & ATA_SRST))
+ dw1 |= 1 << CMD_HDR_RESET_OFF;
+
+ dw1 |= (hisi_sas_get_ata_protocol(
+ &task->ata_task.fis, task->data_dir))
+ << CMD_HDR_FRAME_TYPE_OFF;
+ dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
+ hdr->dw1 = cpu_to_le32(dw1);
+
+ /* dw2 */
+ if (task->ata_task.use_ncq) {
+ struct ata_queued_cmd *qc = task->uldd_task;
+
+ hdr_tag = qc->tag;
+ task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
+ dw2 |= hdr_tag << CMD_HDR_NCQ_TAG_OFF;
+ }
+
+ dw2 |= (HISI_SAS_MAX_STP_RESP_SZ / 4) << CMD_HDR_CFL_OFF |
+ 2 << CMD_HDR_SG_MOD_OFF;
+ hdr->dw2 = cpu_to_le32(dw2);
+
+ /* dw3 */
+ hdr->transfer_tags = cpu_to_le32(slot->idx);
+
+ if (has_data)
+ prep_prd_sge_v2_hw(hisi_hba, slot, hdr, task->scatter,
+ slot->n_elem);
+
+ hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
+ hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+
+ buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot);
+
+ if (likely(!task->ata_task.device_control_reg_update))
+ task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
+ /* fill in command FIS */
+ memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
+}
+
+static void hisi_sas_internal_abort_quirk_timeout(struct timer_list *t)
+{
+ struct hisi_sas_slot *slot = from_timer(slot, t, internal_abort_timer);
+ struct hisi_sas_port *port = slot->port;
+ struct asd_sas_port *asd_sas_port;
+ struct asd_sas_phy *sas_phy;
+
+ if (!port)
+ return;
+
+ asd_sas_port = &port->sas_port;
+
+ /* Kick the hardware - send break command */
+ list_for_each_entry(sas_phy, &asd_sas_port->phy_list, port_phy_el) {
+ struct hisi_sas_phy *phy = sas_phy->lldd_phy;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ int phy_no = sas_phy->id;
+ u32 link_dfx2;
+
+ link_dfx2 = hisi_sas_phy_read32(hisi_hba, phy_no, LINK_DFX2);
+ if ((link_dfx2 == LINK_DFX2_RCVR_HOLD_STS_MSK) ||
+ (link_dfx2 & LINK_DFX2_SEND_HOLD_STS_MSK)) {
+ u32 txid_auto;
+
+ txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no,
+ TXID_AUTO);
+ txid_auto |= TXID_AUTO_CTB_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
+ txid_auto);
+ return;
+ }
+ }
+}
+
+static void prep_abort_v2_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ int device_id, int abort_flag, int tag_to_abort)
+{
+ struct sas_task *task = slot->task;
+ struct domain_device *dev = task->dev;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct hisi_sas_port *port = slot->port;
+ struct timer_list *timer = &slot->internal_abort_timer;
+
+ /* setup the quirk timer */
+ timer_setup(timer, hisi_sas_internal_abort_quirk_timeout, 0);
+ /* Set the timeout to 10ms less than internal abort timeout */
+ mod_timer(timer, jiffies + msecs_to_jiffies(100));
+
+ /* dw0 */
+ hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/
+ (port->id << CMD_HDR_PORT_OFF) |
+ (dev_is_sata(dev) <<
+ CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
+ (abort_flag << CMD_HDR_ABORT_FLAG_OFF));
+
+ /* dw1 */
+ hdr->dw1 = cpu_to_le32(device_id << CMD_HDR_DEV_ID_OFF);
+
+ /* dw7 */
+ hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF);
+ hdr->transfer_tags = cpu_to_le32(slot->idx);
+}
+
+static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
+{
+ int i, res = IRQ_HANDLED;
+ u32 port_id, link_rate;
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct device *dev = hisi_hba->dev;
+ u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
+ struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
+ unsigned long flags;
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1);
+
+ if (is_sata_phy_v2_hw(hisi_hba, phy_no))
+ goto end;
+
+ del_timer(&phy->timer);
+
+ if (phy_no == 8) {
+ u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
+
+ port_id = (port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
+ PORT_STATE_PHY8_PORT_NUM_OFF;
+ link_rate = (port_state & PORT_STATE_PHY8_CONN_RATE_MSK) >>
+ PORT_STATE_PHY8_CONN_RATE_OFF;
+ } else {
+ port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+ port_id = (port_id >> (4 * phy_no)) & 0xf;
+ link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
+ link_rate = (link_rate >> (phy_no * 4)) & 0xf;
+ }
+
+ if (port_id == 0xf) {
+ dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ for (i = 0; i < 6; i++) {
+ u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
+ RX_IDAF_DWORD0 + (i * 4));
+ frame_rcvd[i] = __swab32(idaf);
+ }
+
+ sas_phy->linkrate = link_rate;
+ sas_phy->oob_mode = SAS_OOB_MODE;
+ memcpy(sas_phy->attached_sas_addr, &id->sas_addr, SAS_ADDR_SIZE);
+ dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate);
+ phy->port_id = port_id;
+ phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+ phy->phy_type |= PORT_TYPE_SAS;
+ phy->phy_attached = 1;
+ phy->identify.device_type = id->dev_type;
+ phy->frame_rcvd_size = sizeof(struct sas_identify_frame);
+ if (phy->identify.device_type == SAS_END_DEVICE)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SSP;
+ else if (phy->identify.device_type != SAS_PHY_UNUSED) {
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SMP;
+ if (!timer_pending(&hisi_hba->timer))
+ set_link_timer_quirk(hisi_hba);
+ }
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
+ spin_lock_irqsave(&phy->lock, flags);
+ if (phy->reset_completion) {
+ phy->in_reset = 0;
+ complete(phy->reset_completion);
+ }
+ spin_unlock_irqrestore(&phy->lock, flags);
+
+end:
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
+ CHL_INT0_SL_PHY_ENABLE_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 0);
+
+ return res;
+}
+
+static bool check_any_wideports_v2_hw(struct hisi_hba *hisi_hba)
+{
+ u32 port_state;
+
+ port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
+ if (port_state & 0x1ff)
+ return true;
+
+ return false;
+}
+
+static int phy_down_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
+{
+ u32 phy_state, sl_ctrl, txid_auto;
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct hisi_sas_port *port = phy->port;
+ struct device *dev = hisi_hba->dev;
+
+ del_timer(&phy->timer);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);
+
+ phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+ dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state);
+ hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0);
+
+ sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL,
+ sl_ctrl & ~SL_CONTROL_CTA_MSK);
+ if (port && !get_wideport_bitmap_v2_hw(hisi_hba, port->id))
+ if (!check_any_wideports_v2_hw(hisi_hba) &&
+ timer_pending(&hisi_hba->timer))
+ del_timer(&hisi_hba->timer);
+
+ txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
+ txid_auto | TXID_AUTO_CT3_MSK);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t int_phy_updown_v2_hw(int irq_no, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ u32 irq_msk;
+ int phy_no = 0;
+ irqreturn_t res = IRQ_NONE;
+
+ irq_msk = (hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO)
+ >> HGC_INVLD_DQE_INFO_FB_CH0_OFF) & 0x1ff;
+ while (irq_msk) {
+ if (irq_msk & 1) {
+ u32 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no,
+ CHL_INT0);
+
+ switch (reg_value & (CHL_INT0_NOT_RDY_MSK |
+ CHL_INT0_SL_PHY_ENABLE_MSK)) {
+
+ case CHL_INT0_SL_PHY_ENABLE_MSK:
+ /* phy up */
+ if (phy_up_v2_hw(phy_no, hisi_hba) ==
+ IRQ_HANDLED)
+ res = IRQ_HANDLED;
+ break;
+
+ case CHL_INT0_NOT_RDY_MSK:
+ /* phy down */
+ if (phy_down_v2_hw(phy_no, hisi_hba) ==
+ IRQ_HANDLED)
+ res = IRQ_HANDLED;
+ break;
+
+ case (CHL_INT0_NOT_RDY_MSK |
+ CHL_INT0_SL_PHY_ENABLE_MSK):
+ reg_value = hisi_sas_read32(hisi_hba,
+ PHY_STATE);
+ if (reg_value & BIT(phy_no)) {
+ /* phy up */
+ if (phy_up_v2_hw(phy_no, hisi_hba) ==
+ IRQ_HANDLED)
+ res = IRQ_HANDLED;
+ } else {
+ /* phy down */
+ if (phy_down_v2_hw(phy_no, hisi_hba) ==
+ IRQ_HANDLED)
+ res = IRQ_HANDLED;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ }
+ irq_msk >>= 1;
+ phy_no++;
+ }
+
+ return res;
+}
+
+static void phy_bcast_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ u32 bcast_status;
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
+ bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS);
+ if ((bcast_status & RX_BCAST_CHG_MSK) &&
+ !test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
+ sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
+ CHL_INT0_SL_RX_BCST_ACK_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
+}
+
+static const struct hisi_sas_hw_error port_ecc_axi_error[] = {
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_ECC_ERR_OFF),
+ .msg = "dmac_tx_ecc_bad_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_ECC_ERR_OFF),
+ .msg = "dmac_rx_ecc_bad_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF),
+ .msg = "dma_tx_axi_wr_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF),
+ .msg = "dma_tx_axi_rd_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF),
+ .msg = "dma_rx_axi_wr_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF),
+ .msg = "dma_rx_axi_rd_err",
+ },
+};
+
+static irqreturn_t int_chnl_int_v2_hw(int irq_no, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ struct device *dev = hisi_hba->dev;
+ u32 ent_msk, ent_tmp, irq_msk;
+ int phy_no = 0;
+
+ ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
+ ent_tmp = ent_msk;
+ ent_msk |= ENT_INT_SRC_MSK3_ENT95_MSK_MSK;
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_msk);
+
+ irq_msk = (hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO) >>
+ HGC_INVLD_DQE_INFO_FB_CH3_OFF) & 0x1ff;
+
+ while (irq_msk) {
+ u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no,
+ CHL_INT0);
+ u32 irq_value1 = hisi_sas_phy_read32(hisi_hba, phy_no,
+ CHL_INT1);
+ u32 irq_value2 = hisi_sas_phy_read32(hisi_hba, phy_no,
+ CHL_INT2);
+
+ if ((irq_msk & (1 << phy_no)) && irq_value1) {
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(port_ecc_axi_error); i++) {
+ const struct hisi_sas_hw_error *error =
+ &port_ecc_axi_error[i];
+
+ if (!(irq_value1 & error->irq_msk))
+ continue;
+
+ dev_warn(dev, "%s error (phy%d 0x%x) found!\n",
+ error->msg, phy_no, irq_value1);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ CHL_INT1, irq_value1);
+ }
+
+ if ((irq_msk & (1 << phy_no)) && irq_value2) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+
+ if (irq_value2 & BIT(CHL_INT2_SL_IDAF_TOUT_CONF_OFF)) {
+ dev_warn(dev, "phy%d identify timeout\n",
+ phy_no);
+ hisi_sas_notify_phy_event(phy,
+ HISI_PHYE_LINK_RESET);
+ }
+
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ CHL_INT2, irq_value2);
+ }
+
+ if ((irq_msk & (1 << phy_no)) && irq_value0) {
+ if (irq_value0 & CHL_INT0_SL_RX_BCST_ACK_MSK)
+ phy_bcast_v2_hw(phy_no, hisi_hba);
+
+ if (irq_value0 & CHL_INT0_PHY_RDY_MSK)
+ hisi_sas_phy_oob_ready(hisi_hba, phy_no);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ CHL_INT0, irq_value0
+ & (~CHL_INT0_HOTPLUG_TOUT_MSK)
+ & (~CHL_INT0_SL_PHY_ENABLE_MSK)
+ & (~CHL_INT0_NOT_RDY_MSK));
+ }
+ irq_msk &= ~(1 << phy_no);
+ phy_no++;
+ }
+
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_tmp);
+
+ return IRQ_HANDLED;
+}
+
+static void
+one_bit_ecc_error_process_v2_hw(struct hisi_hba *hisi_hba, u32 irq_value)
+{
+ struct device *dev = hisi_hba->dev;
+ const struct hisi_sas_hw_error *ecc_error;
+ u32 val;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(one_bit_ecc_errors); i++) {
+ ecc_error = &one_bit_ecc_errors[i];
+ if (irq_value & ecc_error->irq_msk) {
+ val = hisi_sas_read32(hisi_hba, ecc_error->reg);
+ val &= ecc_error->msk;
+ val >>= ecc_error->shift;
+ dev_warn(dev, "%s found: mem addr is 0x%08X\n",
+ ecc_error->msg, val);
+ }
+ }
+}
+
+static void multi_bit_ecc_error_process_v2_hw(struct hisi_hba *hisi_hba,
+ u32 irq_value)
+{
+ struct device *dev = hisi_hba->dev;
+ const struct hisi_sas_hw_error *ecc_error;
+ u32 val;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(multi_bit_ecc_errors); i++) {
+ ecc_error = &multi_bit_ecc_errors[i];
+ if (irq_value & ecc_error->irq_msk) {
+ val = hisi_sas_read32(hisi_hba, ecc_error->reg);
+ val &= ecc_error->msk;
+ val >>= ecc_error->shift;
+ dev_err(dev, "%s (0x%x) found: mem addr is 0x%08X\n",
+ ecc_error->msg, irq_value, val);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+ }
+
+ return;
+}
+
+static irqreturn_t fatal_ecc_int_v2_hw(int irq_no, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ u32 irq_value, irq_msk;
+
+ irq_msk = hisi_sas_read32(hisi_hba, SAS_ECC_INTR_MSK);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, irq_msk | 0xffffffff);
+
+ irq_value = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
+ if (irq_value) {
+ one_bit_ecc_error_process_v2_hw(hisi_hba, irq_value);
+ multi_bit_ecc_error_process_v2_hw(hisi_hba, irq_value);
+ }
+
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR, irq_value);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, irq_msk);
+
+ return IRQ_HANDLED;
+}
+
+static const struct hisi_sas_hw_error axi_error[] = {
+ { .msk = BIT(0), .msg = "IOST_AXI_W_ERR" },
+ { .msk = BIT(1), .msg = "IOST_AXI_R_ERR" },
+ { .msk = BIT(2), .msg = "ITCT_AXI_W_ERR" },
+ { .msk = BIT(3), .msg = "ITCT_AXI_R_ERR" },
+ { .msk = BIT(4), .msg = "SATA_AXI_W_ERR" },
+ { .msk = BIT(5), .msg = "SATA_AXI_R_ERR" },
+ { .msk = BIT(6), .msg = "DQE_AXI_R_ERR" },
+ { .msk = BIT(7), .msg = "CQE_AXI_W_ERR" },
+ {}
+};
+
+static const struct hisi_sas_hw_error fifo_error[] = {
+ { .msk = BIT(8), .msg = "CQE_WINFO_FIFO" },
+ { .msk = BIT(9), .msg = "CQE_MSG_FIFIO" },
+ { .msk = BIT(10), .msg = "GETDQE_FIFO" },
+ { .msk = BIT(11), .msg = "CMDP_FIFO" },
+ { .msk = BIT(12), .msg = "AWTCTRL_FIFO" },
+ {}
+};
+
+static const struct hisi_sas_hw_error fatal_axi_errors[] = {
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_WP_DEPTH_OFF),
+ .msg = "write pointer and depth",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF),
+ .msg = "iptt no match slot",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_RP_DEPTH_OFF),
+ .msg = "read pointer and depth",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_AXI_OFF),
+ .reg = HGC_AXI_FIFO_ERR_INFO,
+ .sub = axi_error,
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_FIFO_OFF),
+ .reg = HGC_AXI_FIFO_ERR_INFO,
+ .sub = fifo_error,
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_LM_OFF),
+ .msg = "LM add/fetch list",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_ABT_OFF),
+ .msg = "SAS_HGC_ABT fetch LM list",
+ },
+};
+
+static irqreturn_t fatal_axi_int_v2_hw(int irq_no, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ u32 irq_value, irq_msk, err_value;
+ struct device *dev = hisi_hba->dev;
+ const struct hisi_sas_hw_error *axi_error;
+ int i;
+
+ irq_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk | 0xfffffffe);
+
+ irq_value = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
+
+ for (i = 0; i < ARRAY_SIZE(fatal_axi_errors); i++) {
+ axi_error = &fatal_axi_errors[i];
+ if (!(irq_value & axi_error->irq_msk))
+ continue;
+
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
+ 1 << axi_error->shift);
+ if (axi_error->sub) {
+ const struct hisi_sas_hw_error *sub = axi_error->sub;
+
+ err_value = hisi_sas_read32(hisi_hba, axi_error->reg);
+ for (; sub->msk || sub->msg; sub++) {
+ if (!(err_value & sub->msk))
+ continue;
+ dev_err(dev, "%s (0x%x) found!\n",
+ sub->msg, irq_value);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+ } else {
+ dev_err(dev, "%s (0x%x) found!\n",
+ axi_error->msg, irq_value);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+ }
+
+ if (irq_value & BIT(ENT_INT_SRC3_ITC_INT_OFF)) {
+ u32 reg_val = hisi_sas_read32(hisi_hba, ITCT_CLR);
+ u32 dev_id = reg_val & ITCT_DEV_MSK;
+ struct hisi_sas_device *sas_dev = &hisi_hba->devices[dev_id];
+
+ hisi_sas_write32(hisi_hba, ITCT_CLR, 0);
+ dev_dbg(dev, "clear ITCT ok\n");
+ complete(sas_dev->completion);
+ }
+
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC3, irq_value);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cq_thread_v2_hw(int irq_no, void *p)
+{
+ struct hisi_sas_cq *cq = p;
+ struct hisi_hba *hisi_hba = cq->hisi_hba;
+ struct hisi_sas_slot *slot;
+ struct hisi_sas_itct *itct;
+ struct hisi_sas_complete_v2_hdr *complete_queue;
+ u32 rd_point = cq->rd_point, wr_point, dev_id;
+ int queue = cq->id;
+
+ if (unlikely(hisi_hba->reject_stp_links_msk))
+ phys_try_accept_stp_links_v2_hw(hisi_hba);
+
+ complete_queue = hisi_hba->complete_hdr[queue];
+
+ wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR +
+ (0x14 * queue));
+
+ while (rd_point != wr_point) {
+ struct hisi_sas_complete_v2_hdr *complete_hdr;
+ int iptt;
+
+ complete_hdr = &complete_queue[rd_point];
+
+ /* Check for NCQ completion */
+ if (complete_hdr->act) {
+ u32 act_tmp = le32_to_cpu(complete_hdr->act);
+ int ncq_tag_count = ffs(act_tmp);
+ u32 dw1 = le32_to_cpu(complete_hdr->dw1);
+
+ dev_id = (dw1 & CMPLT_HDR_DEV_ID_MSK) >>
+ CMPLT_HDR_DEV_ID_OFF;
+ itct = &hisi_hba->itct[dev_id];
+
+ /* The NCQ tags are held in the itct header */
+ while (ncq_tag_count) {
+ __le64 *_ncq_tag = &itct->qw4_15[0], __ncq_tag;
+ u64 ncq_tag;
+
+ ncq_tag_count--;
+ __ncq_tag = _ncq_tag[ncq_tag_count / 5];
+ ncq_tag = le64_to_cpu(__ncq_tag);
+ iptt = (ncq_tag >> (ncq_tag_count % 5) * 12) &
+ 0xfff;
+
+ slot = &hisi_hba->slot_info[iptt];
+ slot->cmplt_queue_slot = rd_point;
+ slot->cmplt_queue = queue;
+ slot_complete_v2_hw(hisi_hba, slot);
+
+ act_tmp &= ~(1 << ncq_tag_count);
+ ncq_tag_count = ffs(act_tmp);
+ }
+ } else {
+ u32 dw1 = le32_to_cpu(complete_hdr->dw1);
+
+ iptt = dw1 & CMPLT_HDR_IPTT_MSK;
+ slot = &hisi_hba->slot_info[iptt];
+ slot->cmplt_queue_slot = rd_point;
+ slot->cmplt_queue = queue;
+ slot_complete_v2_hw(hisi_hba, slot);
+ }
+
+ if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
+ rd_point = 0;
+ }
+
+ /* update rd_point */
+ cq->rd_point = rd_point;
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cq_interrupt_v2_hw(int irq_no, void *p)
+{
+ struct hisi_sas_cq *cq = p;
+ struct hisi_hba *hisi_hba = cq->hisi_hba;
+ int queue = cq->id;
+
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
+
+ return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
+{
+ struct hisi_sas_phy *phy = p;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct device *dev = hisi_hba->dev;
+ struct hisi_sas_initial_fis *initial_fis;
+ struct dev_to_host_fis *fis;
+ u32 ent_tmp, ent_msk, ent_int, port_id, link_rate, hard_phy_linkrate;
+ irqreturn_t res = IRQ_HANDLED;
+ u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
+ unsigned long flags;
+ int phy_no, offset;
+
+ del_timer(&phy->timer);
+
+ phy_no = sas_phy->id;
+ initial_fis = &hisi_hba->initial_fis[phy_no];
+ fis = &initial_fis->fis;
+
+ offset = 4 * (phy_no / 4);
+ ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK1 + offset);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset,
+ ent_msk | 1 << ((phy_no % 4) * 8));
+
+ ent_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC1 + offset);
+ ent_tmp = ent_int & (1 << (ENT_INT_SRC1_D2H_FIS_CH1_OFF *
+ (phy_no % 4)));
+ ent_int >>= ENT_INT_SRC1_D2H_FIS_CH1_OFF * (phy_no % 4);
+ if ((ent_int & ENT_INT_SRC1_D2H_FIS_CH0_MSK) == 0) {
+ dev_warn(dev, "sata int: phy%d did not receive FIS\n", phy_no);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ /* check ERR bit of Status Register */
+ if (fis->status & ATA_ERR) {
+ dev_warn(dev, "sata int: phy%d FIS status: 0x%x\n", phy_no,
+ fis->status);
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ if (unlikely(phy_no == 8)) {
+ u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
+
+ port_id = (port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
+ PORT_STATE_PHY8_PORT_NUM_OFF;
+ link_rate = (port_state & PORT_STATE_PHY8_CONN_RATE_MSK) >>
+ PORT_STATE_PHY8_CONN_RATE_OFF;
+ } else {
+ port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+ port_id = (port_id >> (4 * phy_no)) & 0xf;
+ link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
+ link_rate = (link_rate >> (phy_no * 4)) & 0xf;
+ }
+
+ if (port_id == 0xf) {
+ dev_err(dev, "sata int: phy%d invalid portid\n", phy_no);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ sas_phy->linkrate = link_rate;
+ hard_phy_linkrate = hisi_sas_phy_read32(hisi_hba, phy_no,
+ HARD_PHY_LINKRATE);
+ phy->maximum_linkrate = hard_phy_linkrate & 0xf;
+ phy->minimum_linkrate = (hard_phy_linkrate >> 4) & 0xf;
+
+ sas_phy->oob_mode = SATA_OOB_MODE;
+ /* Make up some unique SAS address */
+ attached_sas_addr[0] = 0x50;
+ attached_sas_addr[6] = hisi_hba->shost->host_no;
+ attached_sas_addr[7] = phy_no;
+ memcpy(sas_phy->attached_sas_addr, attached_sas_addr, SAS_ADDR_SIZE);
+ memcpy(sas_phy->frame_rcvd, fis, sizeof(struct dev_to_host_fis));
+ dev_info(dev, "sata int phyup: phy%d link_rate=%d\n", phy_no, link_rate);
+ phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+ phy->port_id = port_id;
+ phy->phy_type |= PORT_TYPE_SATA;
+ phy->phy_attached = 1;
+ phy->identify.device_type = SAS_SATA_DEV;
+ phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
+ phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
+
+ spin_lock_irqsave(&phy->lock, flags);
+ if (phy->reset_completion) {
+ phy->in_reset = 0;
+ complete(phy->reset_completion);
+ }
+ spin_unlock_irqrestore(&phy->lock, flags);
+end:
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC1 + offset, ent_tmp);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset, ent_msk);
+
+ return res;
+}
+
+static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
+ int_phy_updown_v2_hw,
+ int_chnl_int_v2_hw,
+};
+
+static irq_handler_t fatal_interrupts[HISI_SAS_FATAL_INT_NR] = {
+ fatal_ecc_int_v2_hw,
+ fatal_axi_int_v2_hw
+};
+
+/*
+ * There is a limitation in the hip06 chipset that we need
+ * to map in all mbigen interrupts, even if they are not used.
+ */
+static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba)
+{
+ struct platform_device *pdev = hisi_hba->platform_dev;
+ struct device *dev = &pdev->dev;
+ int irq, rc = 0, irq_map[128];
+ int i, phy_no, fatal_no, queue_no;
+
+ for (i = 0; i < 128; i++)
+ irq_map[i] = platform_get_irq(pdev, i);
+
+ for (i = 0; i < HISI_SAS_PHY_INT_NR; i++) {
+ irq = irq_map[i + 1]; /* Phy up/down is irq1 */
+ rc = devm_request_irq(dev, irq, phy_interrupts[i], 0,
+ DRV_NAME " phy", hisi_hba);
+ if (rc) {
+ dev_err(dev, "irq init: could not request phy interrupt %d, rc=%d\n",
+ irq, rc);
+ rc = -ENOENT;
+ goto err_out;
+ }
+ }
+
+ for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+
+ irq = irq_map[phy_no + 72];
+ rc = devm_request_irq(dev, irq, sata_int_v2_hw, 0,
+ DRV_NAME " sata", phy);
+ if (rc) {
+ dev_err(dev, "irq init: could not request sata interrupt %d, rc=%d\n",
+ irq, rc);
+ rc = -ENOENT;
+ goto err_out;
+ }
+ }
+
+ for (fatal_no = 0; fatal_no < HISI_SAS_FATAL_INT_NR; fatal_no++) {
+ irq = irq_map[fatal_no + 81];
+ rc = devm_request_irq(dev, irq, fatal_interrupts[fatal_no], 0,
+ DRV_NAME " fatal", hisi_hba);
+ if (rc) {
+ dev_err(dev, "irq init: could not request fatal interrupt %d, rc=%d\n",
+ irq, rc);
+ rc = -ENOENT;
+ goto err_out;
+ }
+ }
+
+ for (queue_no = 0; queue_no < hisi_hba->queue_count; queue_no++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[queue_no];
+
+ cq->irq_no = irq_map[queue_no + 96];
+ rc = devm_request_threaded_irq(dev, cq->irq_no,
+ cq_interrupt_v2_hw,
+ cq_thread_v2_hw, IRQF_ONESHOT,
+ DRV_NAME " cq", cq);
+ if (rc) {
+ dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
+ irq, rc);
+ rc = -ENOENT;
+ goto err_out;
+ }
+ }
+
+ hisi_hba->cq_nvecs = hisi_hba->queue_count;
+
+err_out:
+ return rc;
+}
+
+static int hisi_sas_v2_init(struct hisi_hba *hisi_hba)
+{
+ int rc;
+
+ memset(hisi_hba->sata_dev_bitmap, 0, sizeof(hisi_hba->sata_dev_bitmap));
+
+ rc = hw_init_v2_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ rc = interrupt_init_v2_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ return 0;
+}
+
+static void interrupt_disable_v2_hw(struct hisi_hba *hisi_hba)
+{
+ struct platform_device *pdev = hisi_hba->platform_dev;
+ int i;
+
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0x1);
+
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffffffff);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xffffffff);
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffffff);
+ }
+
+ for (i = 0; i < 128; i++)
+ synchronize_irq(platform_get_irq(pdev, i));
+}
+
+
+static u32 get_phys_state_v2_hw(struct hisi_hba *hisi_hba)
+{
+ return hisi_sas_read32(hisi_hba, PHY_STATE);
+}
+
+static int soft_reset_v2_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int rc, cnt;
+
+ interrupt_disable_v2_hw(hisi_hba);
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0);
+
+ hisi_sas_stop_phys(hisi_hba);
+
+ mdelay(10);
+
+ hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE + AM_CTRL_GLOBAL, 0x1);
+
+ /* wait until bus idle */
+ cnt = 0;
+ while (1) {
+ u32 status = hisi_sas_read32_relaxed(hisi_hba,
+ AXI_MASTER_CFG_BASE + AM_CURR_TRANS_RETURN);
+
+ if (status == 0x3)
+ break;
+
+ udelay(10);
+ if (cnt++ > 10) {
+ dev_err(dev, "wait axi bus state to idle timeout!\n");
+ return -1;
+ }
+ }
+
+ hisi_sas_init_mem(hisi_hba);
+
+ rc = hw_init_v2_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ phys_reject_stp_links_v2_hw(hisi_hba);
+
+ return 0;
+}
+
+static int write_gpio_v2_hw(struct hisi_hba *hisi_hba, u8 reg_type,
+ u8 reg_index, u8 reg_count, u8 *write_data)
+{
+ struct device *dev = hisi_hba->dev;
+ int phy_no, count;
+
+ if (!hisi_hba->sgpio_regs)
+ return -EOPNOTSUPP;
+
+ switch (reg_type) {
+ case SAS_GPIO_REG_TX:
+ count = reg_count * 4;
+ count = min(count, hisi_hba->n_phy);
+
+ for (phy_no = 0; phy_no < count; phy_no++) {
+ /*
+ * GPIO_TX[n] register has the highest numbered drive
+ * of the four in the first byte and the lowest
+ * numbered drive in the fourth byte.
+ * See SFF-8485 Rev. 0.7 Table 24.
+ */
+ void __iomem *reg_addr = hisi_hba->sgpio_regs +
+ reg_index * 4 + phy_no;
+ int data_idx = phy_no + 3 - (phy_no % 4) * 2;
+
+ writeb(write_data[data_idx], reg_addr);
+ }
+
+ break;
+ default:
+ dev_err(dev, "write gpio: unsupported or bad reg type %d\n",
+ reg_type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void wait_cmds_complete_timeout_v2_hw(struct hisi_hba *hisi_hba,
+ int delay_ms, int timeout_ms)
+{
+ struct device *dev = hisi_hba->dev;
+ int entries, entries_old = 0, time;
+
+ for (time = 0; time < timeout_ms; time += delay_ms) {
+ entries = hisi_sas_read32(hisi_hba, CQE_SEND_CNT);
+ if (entries == entries_old)
+ break;
+
+ entries_old = entries;
+ msleep(delay_ms);
+ }
+
+ if (time >= timeout_ms) {
+ dev_dbg(dev, "Wait commands complete timeout!\n");
+ return;
+ }
+
+ dev_dbg(dev, "wait commands complete %dms\n", time);
+
+}
+
+static struct device_attribute *host_attrs_v2_hw[] = {
+ &dev_attr_phy_event_threshold,
+ NULL
+};
+
+static struct scsi_host_template sht_v2_hw = {
+ .name = DRV_NAME,
+ .proc_name = DRV_NAME,
+ .module = THIS_MODULE,
+ .queuecommand = sas_queuecommand,
+ .dma_need_drain = ata_scsi_dma_need_drain,
+ .target_alloc = sas_target_alloc,
+ .slave_configure = hisi_sas_slave_configure,
+ .scan_finished = hisi_sas_scan_finished,
+ .scan_start = hisi_sas_scan_start,
+ .change_queue_depth = sas_change_queue_depth,
+ .bios_param = sas_bios_param,
+ .this_id = -1,
+ .sg_tablesize = HISI_SAS_SGE_PAGE_CNT,
+ .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
+ .eh_device_reset_handler = sas_eh_device_reset_handler,
+ .eh_target_reset_handler = sas_eh_target_reset_handler,
+ .slave_alloc = sas_slave_alloc,
+ .target_destroy = sas_target_destroy,
+ .ioctl = sas_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = sas_ioctl,
+#endif
+ .shost_attrs = host_attrs_v2_hw,
+ .host_reset = hisi_sas_host_reset,
+};
+
+static const struct hisi_sas_hw hisi_sas_v2_hw = {
+ .hw_init = hisi_sas_v2_init,
+ .setup_itct = setup_itct_v2_hw,
+ .slot_index_alloc = slot_index_alloc_quirk_v2_hw,
+ .alloc_dev = alloc_dev_quirk_v2_hw,
+ .sl_notify_ssp = sl_notify_ssp_v2_hw,
+ .get_wideport_bitmap = get_wideport_bitmap_v2_hw,
+ .clear_itct = clear_itct_v2_hw,
+ .free_device = free_device_v2_hw,
+ .prep_smp = prep_smp_v2_hw,
+ .prep_ssp = prep_ssp_v2_hw,
+ .prep_stp = prep_ata_v2_hw,
+ .prep_abort = prep_abort_v2_hw,
+ .start_delivery = start_delivery_v2_hw,
+ .phys_init = phys_init_v2_hw,
+ .phy_start = start_phy_v2_hw,
+ .phy_disable = disable_phy_v2_hw,
+ .phy_hard_reset = phy_hard_reset_v2_hw,
+ .get_events = phy_get_events_v2_hw,
+ .phy_set_linkrate = phy_set_linkrate_v2_hw,
+ .phy_get_max_linkrate = phy_get_max_linkrate_v2_hw,
+ .complete_hdr_size = sizeof(struct hisi_sas_complete_v2_hdr),
+ .soft_reset = soft_reset_v2_hw,
+ .get_phys_state = get_phys_state_v2_hw,
+ .write_gpio = write_gpio_v2_hw,
+ .wait_cmds_complete_timeout = wait_cmds_complete_timeout_v2_hw,
+ .sht = &sht_v2_hw,
+};
+
+static int hisi_sas_v2_probe(struct platform_device *pdev)
+{
+ /*
+ * Check if we should defer the probe before we probe the
+ * upper layer, as it's hard to defer later on.
+ */
+ int ret = platform_get_irq(pdev, 0);
+
+ if (ret < 0) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "cannot obtain irq\n");
+ return ret;
+ }
+
+ return hisi_sas_probe(pdev, &hisi_sas_v2_hw);
+}
+
+static int hisi_sas_v2_remove(struct platform_device *pdev)
+{
+ return hisi_sas_remove(pdev);
+}
+
+static const struct of_device_id sas_v2_of_match[] = {
+ { .compatible = "hisilicon,hip06-sas-v2",},
+ { .compatible = "hisilicon,hip07-sas-v2",},
+ {},
+};
+MODULE_DEVICE_TABLE(of, sas_v2_of_match);
+
+static const struct acpi_device_id sas_v2_acpi_match[] = {
+ { "HISI0162", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(acpi, sas_v2_acpi_match);
+
+static struct platform_driver hisi_sas_v2_driver = {
+ .probe = hisi_sas_v2_probe,
+ .remove = hisi_sas_v2_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = sas_v2_of_match,
+ .acpi_match_table = ACPI_PTR(sas_v2_acpi_match),
+ },
+};
+
+module_platform_driver(hisi_sas_v2_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
+MODULE_DESCRIPTION("HISILICON SAS controller v2 hw driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
new file mode 100644
index 000000000..f03a09c9e
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -0,0 +1,3621 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2017 Hisilicon Limited.
+ */
+
+#include "hisi_sas.h"
+#define DRV_NAME "hisi_sas_v3_hw"
+
+/* global registers need init */
+#define DLVRY_QUEUE_ENABLE 0x0
+#define IOST_BASE_ADDR_LO 0x8
+#define IOST_BASE_ADDR_HI 0xc
+#define ITCT_BASE_ADDR_LO 0x10
+#define ITCT_BASE_ADDR_HI 0x14
+#define IO_BROKEN_MSG_ADDR_LO 0x18
+#define IO_BROKEN_MSG_ADDR_HI 0x1c
+#define PHY_CONTEXT 0x20
+#define PHY_STATE 0x24
+#define PHY_PORT_NUM_MA 0x28
+#define PHY_CONN_RATE 0x30
+#define ITCT_CLR 0x44
+#define ITCT_CLR_EN_OFF 16
+#define ITCT_CLR_EN_MSK (0x1 << ITCT_CLR_EN_OFF)
+#define ITCT_DEV_OFF 0
+#define ITCT_DEV_MSK (0x7ff << ITCT_DEV_OFF)
+#define SAS_AXI_USER3 0x50
+#define IO_SATA_BROKEN_MSG_ADDR_LO 0x58
+#define IO_SATA_BROKEN_MSG_ADDR_HI 0x5c
+#define SATA_INITI_D2H_STORE_ADDR_LO 0x60
+#define SATA_INITI_D2H_STORE_ADDR_HI 0x64
+#define CFG_MAX_TAG 0x68
+#define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL 0x84
+#define HGC_SAS_TXFAIL_RETRY_CTRL 0x88
+#define HGC_GET_ITV_TIME 0x90
+#define DEVICE_MSG_WORK_MODE 0x94
+#define OPENA_WT_CONTI_TIME 0x9c
+#define I_T_NEXUS_LOSS_TIME 0xa0
+#define MAX_CON_TIME_LIMIT_TIME 0xa4
+#define BUS_INACTIVE_LIMIT_TIME 0xa8
+#define REJECT_TO_OPEN_LIMIT_TIME 0xac
+#define CQ_INT_CONVERGE_EN 0xb0
+#define CFG_AGING_TIME 0xbc
+#define HGC_DFX_CFG2 0xc0
+#define CFG_ABT_SET_QUERY_IPTT 0xd4
+#define CFG_SET_ABORTED_IPTT_OFF 0
+#define CFG_SET_ABORTED_IPTT_MSK (0xfff << CFG_SET_ABORTED_IPTT_OFF)
+#define CFG_SET_ABORTED_EN_OFF 12
+#define CFG_ABT_SET_IPTT_DONE 0xd8
+#define CFG_ABT_SET_IPTT_DONE_OFF 0
+#define HGC_IOMB_PROC1_STATUS 0x104
+#define HGC_LM_DFX_STATUS2 0x128
+#define HGC_LM_DFX_STATUS2_IOSTLIST_OFF 0
+#define HGC_LM_DFX_STATUS2_IOSTLIST_MSK (0xfff << \
+ HGC_LM_DFX_STATUS2_IOSTLIST_OFF)
+#define HGC_LM_DFX_STATUS2_ITCTLIST_OFF 12
+#define HGC_LM_DFX_STATUS2_ITCTLIST_MSK (0x7ff << \
+ HGC_LM_DFX_STATUS2_ITCTLIST_OFF)
+#define HGC_CQE_ECC_ADDR 0x13c
+#define HGC_CQE_ECC_1B_ADDR_OFF 0
+#define HGC_CQE_ECC_1B_ADDR_MSK (0x3f << HGC_CQE_ECC_1B_ADDR_OFF)
+#define HGC_CQE_ECC_MB_ADDR_OFF 8
+#define HGC_CQE_ECC_MB_ADDR_MSK (0x3f << HGC_CQE_ECC_MB_ADDR_OFF)
+#define HGC_IOST_ECC_ADDR 0x140
+#define HGC_IOST_ECC_1B_ADDR_OFF 0
+#define HGC_IOST_ECC_1B_ADDR_MSK (0x3ff << HGC_IOST_ECC_1B_ADDR_OFF)
+#define HGC_IOST_ECC_MB_ADDR_OFF 16
+#define HGC_IOST_ECC_MB_ADDR_MSK (0x3ff << HGC_IOST_ECC_MB_ADDR_OFF)
+#define HGC_DQE_ECC_ADDR 0x144
+#define HGC_DQE_ECC_1B_ADDR_OFF 0
+#define HGC_DQE_ECC_1B_ADDR_MSK (0xfff << HGC_DQE_ECC_1B_ADDR_OFF)
+#define HGC_DQE_ECC_MB_ADDR_OFF 16
+#define HGC_DQE_ECC_MB_ADDR_MSK (0xfff << HGC_DQE_ECC_MB_ADDR_OFF)
+#define CHNL_INT_STATUS 0x148
+#define TAB_DFX 0x14c
+#define HGC_ITCT_ECC_ADDR 0x150
+#define HGC_ITCT_ECC_1B_ADDR_OFF 0
+#define HGC_ITCT_ECC_1B_ADDR_MSK (0x3ff << \
+ HGC_ITCT_ECC_1B_ADDR_OFF)
+#define HGC_ITCT_ECC_MB_ADDR_OFF 16
+#define HGC_ITCT_ECC_MB_ADDR_MSK (0x3ff << \
+ HGC_ITCT_ECC_MB_ADDR_OFF)
+#define HGC_AXI_FIFO_ERR_INFO 0x154
+#define AXI_ERR_INFO_OFF 0
+#define AXI_ERR_INFO_MSK (0xff << AXI_ERR_INFO_OFF)
+#define FIFO_ERR_INFO_OFF 8
+#define FIFO_ERR_INFO_MSK (0xff << FIFO_ERR_INFO_OFF)
+#define TAB_RD_TYPE 0x15c
+#define INT_COAL_EN 0x19c
+#define OQ_INT_COAL_TIME 0x1a0
+#define OQ_INT_COAL_CNT 0x1a4
+#define ENT_INT_COAL_TIME 0x1a8
+#define ENT_INT_COAL_CNT 0x1ac
+#define OQ_INT_SRC 0x1b0
+#define OQ_INT_SRC_MSK 0x1b4
+#define ENT_INT_SRC1 0x1b8
+#define ENT_INT_SRC1_D2H_FIS_CH0_OFF 0
+#define ENT_INT_SRC1_D2H_FIS_CH0_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH0_OFF)
+#define ENT_INT_SRC1_D2H_FIS_CH1_OFF 8
+#define ENT_INT_SRC1_D2H_FIS_CH1_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH1_OFF)
+#define ENT_INT_SRC2 0x1bc
+#define ENT_INT_SRC3 0x1c0
+#define ENT_INT_SRC3_WP_DEPTH_OFF 8
+#define ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF 9
+#define ENT_INT_SRC3_RP_DEPTH_OFF 10
+#define ENT_INT_SRC3_AXI_OFF 11
+#define ENT_INT_SRC3_FIFO_OFF 12
+#define ENT_INT_SRC3_LM_OFF 14
+#define ENT_INT_SRC3_ITC_INT_OFF 15
+#define ENT_INT_SRC3_ITC_INT_MSK (0x1 << ENT_INT_SRC3_ITC_INT_OFF)
+#define ENT_INT_SRC3_ABT_OFF 16
+#define ENT_INT_SRC3_DQE_POISON_OFF 18
+#define ENT_INT_SRC3_IOST_POISON_OFF 19
+#define ENT_INT_SRC3_ITCT_POISON_OFF 20
+#define ENT_INT_SRC3_ITCT_NCQ_POISON_OFF 21
+#define ENT_INT_SRC_MSK1 0x1c4
+#define ENT_INT_SRC_MSK2 0x1c8
+#define ENT_INT_SRC_MSK3 0x1cc
+#define ENT_INT_SRC_MSK3_ENT95_MSK_OFF 31
+#define CHNL_PHYUPDOWN_INT_MSK 0x1d0
+#define CHNL_ENT_INT_MSK 0x1d4
+#define HGC_COM_INT_MSK 0x1d8
+#define ENT_INT_SRC_MSK3_ENT95_MSK_MSK (0x1 << ENT_INT_SRC_MSK3_ENT95_MSK_OFF)
+#define SAS_ECC_INTR 0x1e8
+#define SAS_ECC_INTR_DQE_ECC_1B_OFF 0
+#define SAS_ECC_INTR_DQE_ECC_MB_OFF 1
+#define SAS_ECC_INTR_IOST_ECC_1B_OFF 2
+#define SAS_ECC_INTR_IOST_ECC_MB_OFF 3
+#define SAS_ECC_INTR_ITCT_ECC_1B_OFF 4
+#define SAS_ECC_INTR_ITCT_ECC_MB_OFF 5
+#define SAS_ECC_INTR_ITCTLIST_ECC_1B_OFF 6
+#define SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF 7
+#define SAS_ECC_INTR_IOSTLIST_ECC_1B_OFF 8
+#define SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF 9
+#define SAS_ECC_INTR_CQE_ECC_1B_OFF 10
+#define SAS_ECC_INTR_CQE_ECC_MB_OFF 11
+#define SAS_ECC_INTR_NCQ_MEM0_ECC_1B_OFF 12
+#define SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF 13
+#define SAS_ECC_INTR_NCQ_MEM1_ECC_1B_OFF 14
+#define SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF 15
+#define SAS_ECC_INTR_NCQ_MEM2_ECC_1B_OFF 16
+#define SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF 17
+#define SAS_ECC_INTR_NCQ_MEM3_ECC_1B_OFF 18
+#define SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF 19
+#define SAS_ECC_INTR_OOO_RAM_ECC_1B_OFF 20
+#define SAS_ECC_INTR_OOO_RAM_ECC_MB_OFF 21
+#define SAS_ECC_INTR_MSK 0x1ec
+#define HGC_ERR_STAT_EN 0x238
+#define CQE_SEND_CNT 0x248
+#define DLVRY_Q_0_BASE_ADDR_LO 0x260
+#define DLVRY_Q_0_BASE_ADDR_HI 0x264
+#define DLVRY_Q_0_DEPTH 0x268
+#define DLVRY_Q_0_WR_PTR 0x26c
+#define DLVRY_Q_0_RD_PTR 0x270
+#define HYPER_STREAM_ID_EN_CFG 0xc80
+#define OQ0_INT_SRC_MSK 0xc90
+#define COMPL_Q_0_BASE_ADDR_LO 0x4e0
+#define COMPL_Q_0_BASE_ADDR_HI 0x4e4
+#define COMPL_Q_0_DEPTH 0x4e8
+#define COMPL_Q_0_WR_PTR 0x4ec
+#define COMPL_Q_0_RD_PTR 0x4f0
+#define HGC_RXM_DFX_STATUS14 0xae8
+#define HGC_RXM_DFX_STATUS14_MEM0_OFF 0
+#define HGC_RXM_DFX_STATUS14_MEM0_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS14_MEM0_OFF)
+#define HGC_RXM_DFX_STATUS14_MEM1_OFF 9
+#define HGC_RXM_DFX_STATUS14_MEM1_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS14_MEM1_OFF)
+#define HGC_RXM_DFX_STATUS14_MEM2_OFF 18
+#define HGC_RXM_DFX_STATUS14_MEM2_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS14_MEM2_OFF)
+#define HGC_RXM_DFX_STATUS15 0xaec
+#define HGC_RXM_DFX_STATUS15_MEM3_OFF 0
+#define HGC_RXM_DFX_STATUS15_MEM3_MSK (0x1ff << \
+ HGC_RXM_DFX_STATUS15_MEM3_OFF)
+#define AWQOS_AWCACHE_CFG 0xc84
+#define ARQOS_ARCACHE_CFG 0xc88
+#define HILINK_ERR_DFX 0xe04
+#define SAS_GPIO_CFG_0 0x1000
+#define SAS_GPIO_CFG_1 0x1004
+#define SAS_GPIO_TX_0_1 0x1040
+#define SAS_CFG_DRIVE_VLD 0x1070
+
+/* phy registers requiring init */
+#define PORT_BASE (0x2000)
+#define PHY_CFG (PORT_BASE + 0x0)
+#define HARD_PHY_LINKRATE (PORT_BASE + 0x4)
+#define PHY_CFG_ENA_OFF 0
+#define PHY_CFG_ENA_MSK (0x1 << PHY_CFG_ENA_OFF)
+#define PHY_CFG_DC_OPT_OFF 2
+#define PHY_CFG_DC_OPT_MSK (0x1 << PHY_CFG_DC_OPT_OFF)
+#define PHY_CFG_PHY_RST_OFF 3
+#define PHY_CFG_PHY_RST_MSK (0x1 << PHY_CFG_PHY_RST_OFF)
+#define PROG_PHY_LINK_RATE (PORT_BASE + 0x8)
+#define CFG_PROG_PHY_LINK_RATE_OFF 0
+#define CFG_PROG_PHY_LINK_RATE_MSK (0xff << CFG_PROG_PHY_LINK_RATE_OFF)
+#define CFG_PROG_OOB_PHY_LINK_RATE_OFF 8
+#define CFG_PROG_OOB_PHY_LINK_RATE_MSK (0xf << CFG_PROG_OOB_PHY_LINK_RATE_OFF)
+#define PHY_CTRL (PORT_BASE + 0x14)
+#define PHY_CTRL_RESET_OFF 0
+#define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF)
+#define CMD_HDR_PIR_OFF 8
+#define CMD_HDR_PIR_MSK (0x1 << CMD_HDR_PIR_OFF)
+#define SERDES_CFG (PORT_BASE + 0x1c)
+#define CFG_ALOS_CHK_DISABLE_OFF 9
+#define CFG_ALOS_CHK_DISABLE_MSK (0x1 << CFG_ALOS_CHK_DISABLE_OFF)
+#define SAS_PHY_BIST_CTRL (PORT_BASE + 0x2c)
+#define CFG_BIST_MODE_SEL_OFF 0
+#define CFG_BIST_MODE_SEL_MSK (0xf << CFG_BIST_MODE_SEL_OFF)
+#define CFG_LOOP_TEST_MODE_OFF 14
+#define CFG_LOOP_TEST_MODE_MSK (0x3 << CFG_LOOP_TEST_MODE_OFF)
+#define CFG_RX_BIST_EN_OFF 16
+#define CFG_RX_BIST_EN_MSK (0x1 << CFG_RX_BIST_EN_OFF)
+#define CFG_TX_BIST_EN_OFF 17
+#define CFG_TX_BIST_EN_MSK (0x1 << CFG_TX_BIST_EN_OFF)
+#define CFG_BIST_TEST_OFF 18
+#define CFG_BIST_TEST_MSK (0x1 << CFG_BIST_TEST_OFF)
+#define SAS_PHY_BIST_CODE (PORT_BASE + 0x30)
+#define SAS_PHY_BIST_CODE1 (PORT_BASE + 0x34)
+#define SAS_BIST_ERR_CNT (PORT_BASE + 0x38)
+#define SL_CFG (PORT_BASE + 0x84)
+#define AIP_LIMIT (PORT_BASE + 0x90)
+#define SL_CONTROL (PORT_BASE + 0x94)
+#define SL_CONTROL_NOTIFY_EN_OFF 0
+#define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
+#define SL_CTA_OFF 17
+#define SL_CTA_MSK (0x1 << SL_CTA_OFF)
+#define RX_PRIMS_STATUS (PORT_BASE + 0x98)
+#define RX_BCAST_CHG_OFF 1
+#define RX_BCAST_CHG_MSK (0x1 << RX_BCAST_CHG_OFF)
+#define TX_ID_DWORD0 (PORT_BASE + 0x9c)
+#define TX_ID_DWORD1 (PORT_BASE + 0xa0)
+#define TX_ID_DWORD2 (PORT_BASE + 0xa4)
+#define TX_ID_DWORD3 (PORT_BASE + 0xa8)
+#define TX_ID_DWORD4 (PORT_BASE + 0xaC)
+#define TX_ID_DWORD5 (PORT_BASE + 0xb0)
+#define TX_ID_DWORD6 (PORT_BASE + 0xb4)
+#define TXID_AUTO (PORT_BASE + 0xb8)
+#define CT3_OFF 1
+#define CT3_MSK (0x1 << CT3_OFF)
+#define TX_HARDRST_OFF 2
+#define TX_HARDRST_MSK (0x1 << TX_HARDRST_OFF)
+#define RX_IDAF_DWORD0 (PORT_BASE + 0xc4)
+#define RXOP_CHECK_CFG_H (PORT_BASE + 0xfc)
+#define STP_LINK_TIMER (PORT_BASE + 0x120)
+#define STP_LINK_TIMEOUT_STATE (PORT_BASE + 0x124)
+#define CON_CFG_DRIVER (PORT_BASE + 0x130)
+#define SAS_SSP_CON_TIMER_CFG (PORT_BASE + 0x134)
+#define SAS_SMP_CON_TIMER_CFG (PORT_BASE + 0x138)
+#define SAS_STP_CON_TIMER_CFG (PORT_BASE + 0x13c)
+#define CHL_INT0 (PORT_BASE + 0x1b4)
+#define CHL_INT0_HOTPLUG_TOUT_OFF 0
+#define CHL_INT0_HOTPLUG_TOUT_MSK (0x1 << CHL_INT0_HOTPLUG_TOUT_OFF)
+#define CHL_INT0_SL_RX_BCST_ACK_OFF 1
+#define CHL_INT0_SL_RX_BCST_ACK_MSK (0x1 << CHL_INT0_SL_RX_BCST_ACK_OFF)
+#define CHL_INT0_SL_PHY_ENABLE_OFF 2
+#define CHL_INT0_SL_PHY_ENABLE_MSK (0x1 << CHL_INT0_SL_PHY_ENABLE_OFF)
+#define CHL_INT0_NOT_RDY_OFF 4
+#define CHL_INT0_NOT_RDY_MSK (0x1 << CHL_INT0_NOT_RDY_OFF)
+#define CHL_INT0_PHY_RDY_OFF 5
+#define CHL_INT0_PHY_RDY_MSK (0x1 << CHL_INT0_PHY_RDY_OFF)
+#define CHL_INT1 (PORT_BASE + 0x1b8)
+#define CHL_INT1_DMAC_TX_ECC_MB_ERR_OFF 15
+#define CHL_INT1_DMAC_TX_ECC_1B_ERR_OFF 16
+#define CHL_INT1_DMAC_RX_ECC_MB_ERR_OFF 17
+#define CHL_INT1_DMAC_RX_ECC_1B_ERR_OFF 18
+#define CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF 19
+#define CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF 20
+#define CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF 21
+#define CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF 22
+#define CHL_INT1_DMAC_TX_FIFO_ERR_OFF 23
+#define CHL_INT1_DMAC_RX_FIFO_ERR_OFF 24
+#define CHL_INT1_DMAC_TX_AXI_RUSER_ERR_OFF 26
+#define CHL_INT1_DMAC_RX_AXI_RUSER_ERR_OFF 27
+#define CHL_INT2 (PORT_BASE + 0x1bc)
+#define CHL_INT2_SL_IDAF_TOUT_CONF_OFF 0
+#define CHL_INT2_RX_DISP_ERR_OFF 28
+#define CHL_INT2_RX_CODE_ERR_OFF 29
+#define CHL_INT2_RX_INVLD_DW_OFF 30
+#define CHL_INT2_STP_LINK_TIMEOUT_OFF 31
+#define CHL_INT0_MSK (PORT_BASE + 0x1c0)
+#define CHL_INT1_MSK (PORT_BASE + 0x1c4)
+#define CHL_INT2_MSK (PORT_BASE + 0x1c8)
+#define SAS_EC_INT_COAL_TIME (PORT_BASE + 0x1cc)
+#define CHL_INT_COAL_EN (PORT_BASE + 0x1d0)
+#define SAS_RX_TRAIN_TIMER (PORT_BASE + 0x2a4)
+#define PHY_CTRL_RDY_MSK (PORT_BASE + 0x2b0)
+#define PHYCTRL_NOT_RDY_MSK (PORT_BASE + 0x2b4)
+#define PHYCTRL_DWS_RESET_MSK (PORT_BASE + 0x2b8)
+#define PHYCTRL_PHY_ENA_MSK (PORT_BASE + 0x2bc)
+#define SL_RX_BCAST_CHK_MSK (PORT_BASE + 0x2c0)
+#define PHYCTRL_OOB_RESTART_MSK (PORT_BASE + 0x2c4)
+#define DMA_TX_STATUS (PORT_BASE + 0x2d0)
+#define DMA_TX_STATUS_BUSY_OFF 0
+#define DMA_TX_STATUS_BUSY_MSK (0x1 << DMA_TX_STATUS_BUSY_OFF)
+#define DMA_RX_STATUS (PORT_BASE + 0x2e8)
+#define DMA_RX_STATUS_BUSY_OFF 0
+#define DMA_RX_STATUS_BUSY_MSK (0x1 << DMA_RX_STATUS_BUSY_OFF)
+
+#define COARSETUNE_TIME (PORT_BASE + 0x304)
+#define TXDEEMPH_G1 (PORT_BASE + 0x350)
+#define ERR_CNT_DWS_LOST (PORT_BASE + 0x380)
+#define ERR_CNT_RESET_PROB (PORT_BASE + 0x384)
+#define ERR_CNT_INVLD_DW (PORT_BASE + 0x390)
+#define ERR_CNT_CODE_ERR (PORT_BASE + 0x394)
+#define ERR_CNT_DISP_ERR (PORT_BASE + 0x398)
+
+#define DEFAULT_ITCT_HW 2048 /* reset value, not reprogrammed */
+#if (HISI_SAS_MAX_DEVICES > DEFAULT_ITCT_HW)
+#error Max ITCT exceeded
+#endif
+
+#define AXI_MASTER_CFG_BASE (0x5000)
+#define AM_CTRL_GLOBAL (0x0)
+#define AM_CTRL_SHUTDOWN_REQ_OFF 0
+#define AM_CTRL_SHUTDOWN_REQ_MSK (0x1 << AM_CTRL_SHUTDOWN_REQ_OFF)
+#define AM_CURR_TRANS_RETURN (0x150)
+
+#define AM_CFG_MAX_TRANS (0x5010)
+#define AM_CFG_SINGLE_PORT_MAX_TRANS (0x5014)
+#define AXI_CFG (0x5100)
+#define AM_ROB_ECC_ERR_ADDR (0x510c)
+#define AM_ROB_ECC_ERR_ADDR_OFF 0
+#define AM_ROB_ECC_ERR_ADDR_MSK 0xffffffff
+
+/* RAS registers need init */
+#define RAS_BASE (0x6000)
+#define SAS_RAS_INTR0 (RAS_BASE)
+#define SAS_RAS_INTR1 (RAS_BASE + 0x04)
+#define SAS_RAS_INTR0_MASK (RAS_BASE + 0x08)
+#define SAS_RAS_INTR1_MASK (RAS_BASE + 0x0c)
+#define CFG_SAS_RAS_INTR_MASK (RAS_BASE + 0x1c)
+#define SAS_RAS_INTR2 (RAS_BASE + 0x20)
+#define SAS_RAS_INTR2_MASK (RAS_BASE + 0x24)
+
+/* HW dma structures */
+/* Delivery queue header */
+/* dw0 */
+#define CMD_HDR_ABORT_FLAG_OFF 0
+#define CMD_HDR_ABORT_FLAG_MSK (0x3 << CMD_HDR_ABORT_FLAG_OFF)
+#define CMD_HDR_ABORT_DEVICE_TYPE_OFF 2
+#define CMD_HDR_ABORT_DEVICE_TYPE_MSK (0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF)
+#define CMD_HDR_RESP_REPORT_OFF 5
+#define CMD_HDR_RESP_REPORT_MSK (0x1 << CMD_HDR_RESP_REPORT_OFF)
+#define CMD_HDR_TLR_CTRL_OFF 6
+#define CMD_HDR_TLR_CTRL_MSK (0x3 << CMD_HDR_TLR_CTRL_OFF)
+#define CMD_HDR_PORT_OFF 18
+#define CMD_HDR_PORT_MSK (0xf << CMD_HDR_PORT_OFF)
+#define CMD_HDR_PRIORITY_OFF 27
+#define CMD_HDR_PRIORITY_MSK (0x1 << CMD_HDR_PRIORITY_OFF)
+#define CMD_HDR_CMD_OFF 29
+#define CMD_HDR_CMD_MSK (0x7 << CMD_HDR_CMD_OFF)
+/* dw1 */
+#define CMD_HDR_UNCON_CMD_OFF 3
+#define CMD_HDR_DIR_OFF 5
+#define CMD_HDR_DIR_MSK (0x3 << CMD_HDR_DIR_OFF)
+#define CMD_HDR_RESET_OFF 7
+#define CMD_HDR_RESET_MSK (0x1 << CMD_HDR_RESET_OFF)
+#define CMD_HDR_VDTL_OFF 10
+#define CMD_HDR_VDTL_MSK (0x1 << CMD_HDR_VDTL_OFF)
+#define CMD_HDR_FRAME_TYPE_OFF 11
+#define CMD_HDR_FRAME_TYPE_MSK (0x1f << CMD_HDR_FRAME_TYPE_OFF)
+#define CMD_HDR_DEV_ID_OFF 16
+#define CMD_HDR_DEV_ID_MSK (0xffff << CMD_HDR_DEV_ID_OFF)
+/* dw2 */
+#define CMD_HDR_CFL_OFF 0
+#define CMD_HDR_CFL_MSK (0x1ff << CMD_HDR_CFL_OFF)
+#define CMD_HDR_NCQ_TAG_OFF 10
+#define CMD_HDR_NCQ_TAG_MSK (0x1f << CMD_HDR_NCQ_TAG_OFF)
+#define CMD_HDR_MRFL_OFF 15
+#define CMD_HDR_MRFL_MSK (0x1ff << CMD_HDR_MRFL_OFF)
+#define CMD_HDR_SG_MOD_OFF 24
+#define CMD_HDR_SG_MOD_MSK (0x3 << CMD_HDR_SG_MOD_OFF)
+/* dw3 */
+#define CMD_HDR_IPTT_OFF 0
+#define CMD_HDR_IPTT_MSK (0xffff << CMD_HDR_IPTT_OFF)
+/* dw6 */
+#define CMD_HDR_DIF_SGL_LEN_OFF 0
+#define CMD_HDR_DIF_SGL_LEN_MSK (0xffff << CMD_HDR_DIF_SGL_LEN_OFF)
+#define CMD_HDR_DATA_SGL_LEN_OFF 16
+#define CMD_HDR_DATA_SGL_LEN_MSK (0xffff << CMD_HDR_DATA_SGL_LEN_OFF)
+/* dw7 */
+#define CMD_HDR_ADDR_MODE_SEL_OFF 15
+#define CMD_HDR_ADDR_MODE_SEL_MSK (1 << CMD_HDR_ADDR_MODE_SEL_OFF)
+#define CMD_HDR_ABORT_IPTT_OFF 16
+#define CMD_HDR_ABORT_IPTT_MSK (0xffff << CMD_HDR_ABORT_IPTT_OFF)
+
+/* Completion header */
+/* dw0 */
+#define CMPLT_HDR_CMPLT_OFF 0
+#define CMPLT_HDR_CMPLT_MSK (0x3 << CMPLT_HDR_CMPLT_OFF)
+#define CMPLT_HDR_ERROR_PHASE_OFF 2
+#define CMPLT_HDR_ERROR_PHASE_MSK (0xff << CMPLT_HDR_ERROR_PHASE_OFF)
+#define CMPLT_HDR_RSPNS_XFRD_OFF 10
+#define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
+#define CMPLT_HDR_RSPNS_GOOD_OFF 11
+#define CMPLT_HDR_RSPNS_GOOD_MSK (0x1 << CMPLT_HDR_RSPNS_GOOD_OFF)
+#define CMPLT_HDR_ERX_OFF 12
+#define CMPLT_HDR_ERX_MSK (0x1 << CMPLT_HDR_ERX_OFF)
+#define CMPLT_HDR_ABORT_STAT_OFF 13
+#define CMPLT_HDR_ABORT_STAT_MSK (0x7 << CMPLT_HDR_ABORT_STAT_OFF)
+/* abort_stat */
+#define STAT_IO_NOT_VALID 0x1
+#define STAT_IO_NO_DEVICE 0x2
+#define STAT_IO_COMPLETE 0x3
+#define STAT_IO_ABORTED 0x4
+/* dw1 */
+#define CMPLT_HDR_IPTT_OFF 0
+#define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF)
+#define CMPLT_HDR_DEV_ID_OFF 16
+#define CMPLT_HDR_DEV_ID_MSK (0xffff << CMPLT_HDR_DEV_ID_OFF)
+/* dw3 */
+#define CMPLT_HDR_IO_IN_TARGET_OFF 17
+#define CMPLT_HDR_IO_IN_TARGET_MSK (0x1 << CMPLT_HDR_IO_IN_TARGET_OFF)
+
+/* ITCT header */
+/* qw0 */
+#define ITCT_HDR_DEV_TYPE_OFF 0
+#define ITCT_HDR_DEV_TYPE_MSK (0x3 << ITCT_HDR_DEV_TYPE_OFF)
+#define ITCT_HDR_VALID_OFF 2
+#define ITCT_HDR_VALID_MSK (0x1 << ITCT_HDR_VALID_OFF)
+#define ITCT_HDR_MCR_OFF 5
+#define ITCT_HDR_MCR_MSK (0xf << ITCT_HDR_MCR_OFF)
+#define ITCT_HDR_VLN_OFF 9
+#define ITCT_HDR_VLN_MSK (0xf << ITCT_HDR_VLN_OFF)
+#define ITCT_HDR_SMP_TIMEOUT_OFF 16
+#define ITCT_HDR_AWT_CONTINUE_OFF 25
+#define ITCT_HDR_PORT_ID_OFF 28
+#define ITCT_HDR_PORT_ID_MSK (0xf << ITCT_HDR_PORT_ID_OFF)
+/* qw2 */
+#define ITCT_HDR_INLT_OFF 0
+#define ITCT_HDR_INLT_MSK (0xffffULL << ITCT_HDR_INLT_OFF)
+#define ITCT_HDR_RTOLT_OFF 48
+#define ITCT_HDR_RTOLT_MSK (0xffffULL << ITCT_HDR_RTOLT_OFF)
+
+struct hisi_sas_protect_iu_v3_hw {
+ u32 dw0;
+ u32 lbrtcv;
+ u32 lbrtgv;
+ u32 dw3;
+ u32 dw4;
+ u32 dw5;
+ u32 rsv;
+};
+
+struct hisi_sas_complete_v3_hdr {
+ __le32 dw0;
+ __le32 dw1;
+ __le32 act;
+ __le32 dw3;
+};
+
+struct hisi_sas_err_record_v3 {
+ /* dw0 */
+ __le32 trans_tx_fail_type;
+
+ /* dw1 */
+ __le32 trans_rx_fail_type;
+
+ /* dw2 */
+ __le16 dma_tx_err_type;
+ __le16 sipc_rx_err_type;
+
+ /* dw3 */
+ __le32 dma_rx_err_type;
+};
+
+#define RX_DATA_LEN_UNDERFLOW_OFF 6
+#define RX_DATA_LEN_UNDERFLOW_MSK (1 << RX_DATA_LEN_UNDERFLOW_OFF)
+
+#define RX_FIS_STATUS_ERR_OFF 0
+#define RX_FIS_STATUS_ERR_MSK (1 << RX_FIS_STATUS_ERR_OFF)
+
+#define HISI_SAS_COMMAND_ENTRIES_V3_HW 4096
+#define HISI_SAS_MSI_COUNT_V3_HW 32
+
+#define DIR_NO_DATA 0
+#define DIR_TO_INI 1
+#define DIR_TO_DEVICE 2
+#define DIR_RESERVED 3
+
+#define FIS_CMD_IS_UNCONSTRAINED(fis) \
+ ((fis.command == ATA_CMD_READ_LOG_EXT) || \
+ (fis.command == ATA_CMD_READ_LOG_DMA_EXT) || \
+ ((fis.command == ATA_CMD_DEV_RESET) && \
+ ((fis.control & ATA_SRST) != 0)))
+
+#define T10_INSRT_EN_OFF 0
+#define T10_INSRT_EN_MSK (1 << T10_INSRT_EN_OFF)
+#define T10_RMV_EN_OFF 1
+#define T10_RMV_EN_MSK (1 << T10_RMV_EN_OFF)
+#define T10_RPLC_EN_OFF 2
+#define T10_RPLC_EN_MSK (1 << T10_RPLC_EN_OFF)
+#define T10_CHK_EN_OFF 3
+#define T10_CHK_EN_MSK (1 << T10_CHK_EN_OFF)
+#define INCR_LBRT_OFF 5
+#define INCR_LBRT_MSK (1 << INCR_LBRT_OFF)
+#define USR_DATA_BLOCK_SZ_OFF 20
+#define USR_DATA_BLOCK_SZ_MSK (0x3 << USR_DATA_BLOCK_SZ_OFF)
+#define T10_CHK_MSK_OFF 16
+#define T10_CHK_REF_TAG_MSK (0xf0 << T10_CHK_MSK_OFF)
+#define T10_CHK_APP_TAG_MSK (0xc << T10_CHK_MSK_OFF)
+
+#define BASE_VECTORS_V3_HW 16
+#define MIN_AFFINE_VECTORS_V3_HW (BASE_VECTORS_V3_HW + 1)
+
+#define CHNL_INT_STS_MSK 0xeeeeeeee
+#define CHNL_INT_STS_PHY_MSK 0xe
+#define CHNL_INT_STS_INT0_MSK BIT(1)
+#define CHNL_INT_STS_INT1_MSK BIT(2)
+#define CHNL_INT_STS_INT2_MSK BIT(3)
+#define CHNL_WIDTH 4
+
+enum {
+ DSM_FUNC_ERR_HANDLE_MSI = 0,
+};
+
+static bool hisi_sas_intr_conv;
+MODULE_PARM_DESC(intr_conv, "interrupt converge enable (0-1)");
+
+/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
+static int prot_mask;
+module_param(prot_mask, int, 0444);
+MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=0x0 ");
+
+static bool auto_affine_msi_experimental;
+module_param(auto_affine_msi_experimental, bool, 0444);
+MODULE_PARM_DESC(auto_affine_msi_experimental, "Enable auto-affinity of MSI IRQs as experimental:\n"
+ "default is off");
+
+static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ return readl(regs);
+}
+
+static void hisi_sas_write32(struct hisi_hba *hisi_hba, u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ writel(val, regs);
+}
+
+static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, int phy_no,
+ u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ writel(val, regs);
+}
+
+static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
+ int phy_no, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ return readl(regs);
+}
+
+#define hisi_sas_read32_poll_timeout(off, val, cond, delay_us, \
+ timeout_us) \
+({ \
+ void __iomem *regs = hisi_hba->regs + off; \
+ readl_poll_timeout(regs, val, cond, delay_us, timeout_us); \
+})
+
+#define hisi_sas_read32_poll_timeout_atomic(off, val, cond, delay_us, \
+ timeout_us) \
+({ \
+ void __iomem *regs = hisi_hba->regs + off; \
+ readl_poll_timeout_atomic(regs, val, cond, delay_us, timeout_us);\
+})
+
+static void init_reg_v3_hw(struct hisi_hba *hisi_hba)
+{
+ int i, j;
+
+ /* Global registers init */
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
+ (u32)((1ULL << hisi_hba->queue_count) - 1));
+ hisi_sas_write32(hisi_hba, SAS_AXI_USER3, 0);
+ hisi_sas_write32(hisi_hba, CFG_MAX_TAG, 0xfff0400);
+ hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x108);
+ hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1);
+ hisi_sas_write32(hisi_hba, CQ_INT_CONVERGE_EN,
+ hisi_sas_intr_conv);
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xfefefefe);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xfefefefe);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffc220ff);
+ hisi_sas_write32(hisi_hba, CHNL_PHYUPDOWN_INT_MSK, 0x0);
+ hisi_sas_write32(hisi_hba, CHNL_ENT_INT_MSK, 0x0);
+ hisi_sas_write32(hisi_hba, HGC_COM_INT_MSK, 0x0);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0x155555);
+ hisi_sas_write32(hisi_hba, AWQOS_AWCACHE_CFG, 0xf0f0);
+ hisi_sas_write32(hisi_hba, ARQOS_ARCACHE_CFG, 0xf0f0);
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0);
+
+ hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1);
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ enum sas_linkrate max;
+ struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ u32 prog_phy_link_rate = hisi_sas_phy_read32(hisi_hba, i,
+ PROG_PHY_LINK_RATE);
+
+ prog_phy_link_rate &= ~CFG_PROG_PHY_LINK_RATE_MSK;
+ if (!sas_phy->phy || (sas_phy->phy->maximum_linkrate <
+ SAS_LINK_RATE_1_5_GBPS))
+ max = SAS_LINK_RATE_12_0_GBPS;
+ else
+ max = sas_phy->phy->maximum_linkrate;
+ prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max);
+ hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE,
+ prog_phy_link_rate);
+ hisi_sas_phy_write32(hisi_hba, i, SERDES_CFG, 0xffc00);
+ hisi_sas_phy_write32(hisi_hba, i, SAS_RX_TRAIN_TIMER, 0x13e80);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xf2057fff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffbfe);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x1);
+ hisi_sas_phy_write32(hisi_hba, i, STP_LINK_TIMER, 0x7f7a120);
+ hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x2a0a01);
+ hisi_sas_phy_write32(hisi_hba, i, SAS_SSP_CON_TIMER_CFG, 0x32);
+ hisi_sas_phy_write32(hisi_hba, i, SAS_EC_INT_COAL_TIME,
+ 0x30f4240);
+ /* used for 12G negotiate */
+ hisi_sas_phy_write32(hisi_hba, i, COARSETUNE_TIME, 0x1e);
+ hisi_sas_phy_write32(hisi_hba, i, AIP_LIMIT, 0x2ffff);
+
+ /* get default FFE configuration for BIST */
+ for (j = 0; j < FFE_CFG_MAX; j++) {
+ u32 val = hisi_sas_phy_read32(hisi_hba, i,
+ TXDEEMPH_G1 + (j * 0x4));
+ hisi_hba->debugfs_bist_ffe[i][j] = val;
+ }
+ }
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ /* Delivery queue */
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+
+ /* Completion queue */
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+ }
+
+ /* itct */
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->itct_dma));
+
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->itct_dma));
+
+ /* iost */
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->iost_dma));
+
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->iost_dma));
+
+ /* breakpoint */
+ hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_LO,
+ lower_32_bits(hisi_hba->breakpoint_dma));
+
+ hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_HI,
+ upper_32_bits(hisi_hba->breakpoint_dma));
+
+ /* SATA broken msg */
+ hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_LO,
+ lower_32_bits(hisi_hba->sata_breakpoint_dma));
+
+ hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_HI,
+ upper_32_bits(hisi_hba->sata_breakpoint_dma));
+
+ /* SATA initial fis */
+ hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_LO,
+ lower_32_bits(hisi_hba->initial_fis_dma));
+
+ hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI,
+ upper_32_bits(hisi_hba->initial_fis_dma));
+
+ /* RAS registers init */
+ hisi_sas_write32(hisi_hba, SAS_RAS_INTR0_MASK, 0x0);
+ hisi_sas_write32(hisi_hba, SAS_RAS_INTR1_MASK, 0x0);
+ hisi_sas_write32(hisi_hba, SAS_RAS_INTR2_MASK, 0x0);
+ hisi_sas_write32(hisi_hba, CFG_SAS_RAS_INTR_MASK, 0x0);
+
+ /* LED registers init */
+ hisi_sas_write32(hisi_hba, SAS_CFG_DRIVE_VLD, 0x80000ff);
+ hisi_sas_write32(hisi_hba, SAS_GPIO_TX_0_1, 0x80808080);
+ hisi_sas_write32(hisi_hba, SAS_GPIO_TX_0_1 + 0x4, 0x80808080);
+ /* Configure blink generator rate A to 1Hz and B to 4Hz */
+ hisi_sas_write32(hisi_hba, SAS_GPIO_CFG_1, 0x121700);
+ hisi_sas_write32(hisi_hba, SAS_GPIO_CFG_0, 0x800000);
+}
+
+static void config_phy_opt_mode_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg &= ~PHY_CFG_DC_OPT_MSK;
+ cfg |= 1 << PHY_CFG_DC_OPT_OFF;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void config_id_frame_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct sas_identify_frame identify_frame;
+ u32 *identify_buffer;
+
+ memset(&identify_frame, 0, sizeof(identify_frame));
+ identify_frame.dev_type = SAS_END_DEVICE;
+ identify_frame.frame_type = 0;
+ identify_frame._un1 = 1;
+ identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
+ identify_frame.target_bits = SAS_PROTOCOL_NONE;
+ memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ identify_frame.phy_id = phy_no;
+ identify_buffer = (u32 *)(&identify_frame);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
+ __swab32(identify_buffer[0]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
+ __swab32(identify_buffer[1]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
+ __swab32(identify_buffer[2]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
+ __swab32(identify_buffer[3]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
+ __swab32(identify_buffer[4]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
+ __swab32(identify_buffer[5]));
+}
+
+static void setup_itct_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *sas_dev)
+{
+ struct domain_device *device = sas_dev->sas_device;
+ struct device *dev = hisi_hba->dev;
+ u64 qw0, device_id = sas_dev->device_id;
+ struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
+ struct domain_device *parent_dev = device->parent;
+ struct asd_sas_port *sas_port = device->port;
+ struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
+ u64 sas_addr;
+
+ memset(itct, 0, sizeof(*itct));
+
+ /* qw0 */
+ qw0 = 0;
+ switch (sas_dev->dev_type) {
+ case SAS_END_DEVICE:
+ case SAS_EDGE_EXPANDER_DEVICE:
+ case SAS_FANOUT_EXPANDER_DEVICE:
+ qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
+ break;
+ case SAS_SATA_DEV:
+ case SAS_SATA_PENDING:
+ if (parent_dev && dev_is_expander(parent_dev->dev_type))
+ qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF;
+ else
+ qw0 = HISI_SAS_DEV_TYPE_SATA << ITCT_HDR_DEV_TYPE_OFF;
+ break;
+ default:
+ dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
+ sas_dev->dev_type);
+ }
+
+ qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
+ (device->linkrate << ITCT_HDR_MCR_OFF) |
+ (1 << ITCT_HDR_VLN_OFF) |
+ (0xfa << ITCT_HDR_SMP_TIMEOUT_OFF) |
+ (1 << ITCT_HDR_AWT_CONTINUE_OFF) |
+ (port->id << ITCT_HDR_PORT_ID_OFF));
+ itct->qw0 = cpu_to_le64(qw0);
+
+ /* qw1 */
+ memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE);
+ itct->sas_addr = cpu_to_le64(__swab64(sas_addr));
+
+ /* qw2 */
+ if (!dev_is_sata(device))
+ itct->qw2 = cpu_to_le64((5000ULL << ITCT_HDR_INLT_OFF) |
+ (0x1ULL << ITCT_HDR_RTOLT_OFF));
+}
+
+static int clear_itct_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_device *sas_dev)
+{
+ DECLARE_COMPLETION_ONSTACK(completion);
+ u64 dev_id = sas_dev->device_id;
+ struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
+ u32 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
+ struct device *dev = hisi_hba->dev;
+
+ sas_dev->completion = &completion;
+
+ /* clear the itct interrupt state */
+ if (ENT_INT_SRC3_ITC_INT_MSK & reg_val)
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
+ ENT_INT_SRC3_ITC_INT_MSK);
+
+ /* clear the itct table */
+ reg_val = ITCT_CLR_EN_MSK | (dev_id & ITCT_DEV_MSK);
+ hisi_sas_write32(hisi_hba, ITCT_CLR, reg_val);
+
+ if (!wait_for_completion_timeout(sas_dev->completion,
+ CLEAR_ITCT_TIMEOUT * HZ)) {
+ dev_warn(dev, "failed to clear ITCT\n");
+ return -ETIMEDOUT;
+ }
+
+ memset(itct, 0, sizeof(struct hisi_sas_itct));
+ return 0;
+}
+
+static void dereg_device_v3_hw(struct hisi_hba *hisi_hba,
+ struct domain_device *device)
+{
+ struct hisi_sas_slot *slot, *slot2;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ u32 cfg_abt_set_query_iptt;
+
+ cfg_abt_set_query_iptt = hisi_sas_read32(hisi_hba,
+ CFG_ABT_SET_QUERY_IPTT);
+ list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) {
+ cfg_abt_set_query_iptt &= ~CFG_SET_ABORTED_IPTT_MSK;
+ cfg_abt_set_query_iptt |= (1 << CFG_SET_ABORTED_EN_OFF) |
+ (slot->idx << CFG_SET_ABORTED_IPTT_OFF);
+ hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT,
+ cfg_abt_set_query_iptt);
+ }
+ cfg_abt_set_query_iptt &= ~(1 << CFG_SET_ABORTED_EN_OFF);
+ hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT,
+ cfg_abt_set_query_iptt);
+ hisi_sas_write32(hisi_hba, CFG_ABT_SET_IPTT_DONE,
+ 1 << CFG_ABT_SET_IPTT_DONE_OFF);
+}
+
+static int reset_hw_v3_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int ret;
+ u32 val;
+
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
+
+ /* Disable all of the PHYs */
+ hisi_sas_stop_phys(hisi_hba);
+ udelay(50);
+
+ /* Ensure axi bus idle */
+ ret = hisi_sas_read32_poll_timeout(AXI_CFG, val, !val,
+ 20000, 1000000);
+ if (ret) {
+ dev_err(dev, "axi bus is not idle, ret = %d!\n", ret);
+ return -EIO;
+ }
+
+ if (ACPI_HANDLE(dev)) {
+ acpi_status s;
+
+ s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL);
+ if (ACPI_FAILURE(s)) {
+ dev_err(dev, "Reset failed\n");
+ return -EIO;
+ }
+ } else {
+ dev_err(dev, "no reset method!\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int hw_init_v3_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ struct acpi_device *acpi_dev;
+ union acpi_object *obj;
+ guid_t guid;
+ int rc;
+
+ rc = reset_hw_v3_hw(hisi_hba);
+ if (rc) {
+ dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc);
+ return rc;
+ }
+
+ msleep(100);
+ init_reg_v3_hw(hisi_hba);
+
+ if (guid_parse("D5918B4B-37AE-4E10-A99F-E5E8A6EF4C1F", &guid)) {
+ dev_err(dev, "Parse GUID failed\n");
+ return -EINVAL;
+ }
+
+ /*
+ * This DSM handles some hardware-related configurations:
+ * 1. Switch over to MSI error handling in kernel
+ * 2. BIOS *may* reset some register values through this method
+ */
+ obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &guid, 0,
+ DSM_FUNC_ERR_HANDLE_MSI, NULL);
+ if (!obj)
+ dev_warn(dev, "can not find DSM method, ignore\n");
+ else
+ ACPI_FREE(obj);
+
+ acpi_dev = ACPI_COMPANION(dev);
+ if (!acpi_device_power_manageable(acpi_dev))
+ dev_notice(dev, "neither _PS0 nor _PR0 is defined\n");
+ return 0;
+}
+
+static void enable_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg |= PHY_CFG_ENA_MSK;
+ cfg &= ~PHY_CFG_PHY_RST_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void disable_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+ u32 irq_msk = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2_MSK);
+ static const u32 msk = BIT(CHL_INT2_RX_DISP_ERR_OFF) |
+ BIT(CHL_INT2_RX_CODE_ERR_OFF) |
+ BIT(CHL_INT2_RX_INVLD_DW_OFF);
+ u32 state;
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2_MSK, msk | irq_msk);
+
+ cfg &= ~PHY_CFG_ENA_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+
+ mdelay(50);
+
+ state = hisi_sas_read32(hisi_hba, PHY_STATE);
+ if (state & BIT(phy_no)) {
+ cfg |= PHY_CFG_PHY_RST_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+ }
+
+ udelay(1);
+
+ hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_INVLD_DW);
+ hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_DISP_ERR);
+ hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_CODE_ERR);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2, msk);
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2_MSK, irq_msk);
+}
+
+static void start_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ config_id_frame_v3_hw(hisi_hba, phy_no);
+ config_phy_opt_mode_v3_hw(hisi_hba, phy_no);
+ enable_phy_v3_hw(hisi_hba, phy_no);
+}
+
+static void phy_hard_reset_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ u32 txid_auto;
+
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+ if (phy->identify.device_type == SAS_END_DEVICE) {
+ txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
+ txid_auto | TX_HARDRST_MSK);
+ }
+ msleep(100);
+ hisi_sas_phy_enable(hisi_hba, phy_no, 1);
+}
+
+static enum sas_linkrate phy_get_max_linkrate_v3_hw(void)
+{
+ return SAS_LINK_RATE_12_0_GBPS;
+}
+
+static void phys_init_v3_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+
+ if (!sas_phy->phy->enabled)
+ continue;
+
+ hisi_sas_phy_enable(hisi_hba, i, 1);
+ }
+}
+
+static void sl_notify_ssp_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 sl_control;
+
+ sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+ msleep(1);
+ sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+}
+
+static int get_wideport_bitmap_v3_hw(struct hisi_hba *hisi_hba, int port_id)
+{
+ int i, bitmap = 0;
+ u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+ u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+
+ for (i = 0; i < hisi_hba->n_phy; i++)
+ if (phy_state & BIT(i))
+ if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
+ bitmap |= BIT(i);
+
+ return bitmap;
+}
+
+static void start_delivery_v3_hw(struct hisi_sas_dq *dq)
+{
+ struct hisi_hba *hisi_hba = dq->hisi_hba;
+ struct hisi_sas_slot *s, *s1, *s2 = NULL;
+ int dlvry_queue = dq->id;
+ int wp;
+
+ list_for_each_entry_safe(s, s1, &dq->list, delivery) {
+ if (!s->ready)
+ break;
+ s2 = s;
+ list_del(&s->delivery);
+ }
+
+ if (!s2)
+ return;
+
+ /*
+ * Ensure that memories for slots built on other CPUs is observed.
+ */
+ smp_rmb();
+ wp = (s2->dlvry_queue_slot + 1) % HISI_SAS_QUEUE_SLOTS;
+
+ hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), wp);
+}
+
+static void prep_prd_sge_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ struct hisi_sas_cmd_hdr *hdr,
+ struct scatterlist *scatter,
+ int n_elem)
+{
+ struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(scatter, sg, n_elem, i) {
+ struct hisi_sas_sge *entry = &sge_page->sge[i];
+
+ entry->addr = cpu_to_le64(sg_dma_address(sg));
+ entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
+ entry->data_len = cpu_to_le32(sg_dma_len(sg));
+ entry->data_off = 0;
+ }
+
+ hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
+
+ hdr->sg_len |= cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
+}
+
+static void prep_prd_sge_dif_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ struct hisi_sas_cmd_hdr *hdr,
+ struct scatterlist *scatter,
+ int n_elem)
+{
+ struct hisi_sas_sge_dif_page *sge_dif_page;
+ struct scatterlist *sg;
+ int i;
+
+ sge_dif_page = hisi_sas_sge_dif_addr_mem(slot);
+
+ for_each_sg(scatter, sg, n_elem, i) {
+ struct hisi_sas_sge *entry = &sge_dif_page->sge[i];
+
+ entry->addr = cpu_to_le64(sg_dma_address(sg));
+ entry->page_ctrl_0 = 0;
+ entry->page_ctrl_1 = 0;
+ entry->data_len = cpu_to_le32(sg_dma_len(sg));
+ entry->data_off = 0;
+ }
+
+ hdr->dif_prd_table_addr =
+ cpu_to_le64(hisi_sas_sge_dif_addr_dma(slot));
+
+ hdr->sg_len |= cpu_to_le32(n_elem << CMD_HDR_DIF_SGL_LEN_OFF);
+}
+
+static u32 get_prot_chk_msk_v3_hw(struct scsi_cmnd *scsi_cmnd)
+{
+ unsigned char prot_flags = scsi_cmnd->prot_flags;
+
+ if (prot_flags & SCSI_PROT_REF_CHECK)
+ return T10_CHK_APP_TAG_MSK;
+ return T10_CHK_REF_TAG_MSK | T10_CHK_APP_TAG_MSK;
+}
+
+static void fill_prot_v3_hw(struct scsi_cmnd *scsi_cmnd,
+ struct hisi_sas_protect_iu_v3_hw *prot)
+{
+ unsigned char prot_op = scsi_get_prot_op(scsi_cmnd);
+ unsigned int interval = scsi_prot_interval(scsi_cmnd);
+ u32 lbrt_chk_val = t10_pi_ref_tag(scsi_cmnd->request);
+
+ switch (prot_op) {
+ case SCSI_PROT_READ_INSERT:
+ prot->dw0 |= T10_INSRT_EN_MSK;
+ prot->lbrtgv = lbrt_chk_val;
+ break;
+ case SCSI_PROT_READ_STRIP:
+ prot->dw0 |= (T10_RMV_EN_MSK | T10_CHK_EN_MSK);
+ prot->lbrtcv = lbrt_chk_val;
+ prot->dw4 |= get_prot_chk_msk_v3_hw(scsi_cmnd);
+ break;
+ case SCSI_PROT_READ_PASS:
+ prot->dw0 |= T10_CHK_EN_MSK;
+ prot->lbrtcv = lbrt_chk_val;
+ prot->dw4 |= get_prot_chk_msk_v3_hw(scsi_cmnd);
+ break;
+ case SCSI_PROT_WRITE_INSERT:
+ prot->dw0 |= T10_INSRT_EN_MSK;
+ prot->lbrtgv = lbrt_chk_val;
+ break;
+ case SCSI_PROT_WRITE_STRIP:
+ prot->dw0 |= (T10_RMV_EN_MSK | T10_CHK_EN_MSK);
+ prot->lbrtcv = lbrt_chk_val;
+ break;
+ case SCSI_PROT_WRITE_PASS:
+ prot->dw0 |= T10_CHK_EN_MSK;
+ prot->lbrtcv = lbrt_chk_val;
+ prot->dw4 |= get_prot_chk_msk_v3_hw(scsi_cmnd);
+ break;
+ default:
+ WARN(1, "prot_op(0x%x) is not valid\n", prot_op);
+ break;
+ }
+
+ switch (interval) {
+ case 512:
+ break;
+ case 4096:
+ prot->dw0 |= (0x1 << USR_DATA_BLOCK_SZ_OFF);
+ break;
+ case 520:
+ prot->dw0 |= (0x2 << USR_DATA_BLOCK_SZ_OFF);
+ break;
+ default:
+ WARN(1, "protection interval (0x%x) invalid\n",
+ interval);
+ break;
+ }
+
+ prot->dw0 |= INCR_LBRT_MSK;
+}
+
+static void prep_ssp_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_sas_port *port = slot->port;
+ struct sas_ssp_task *ssp_task = &task->ssp_task;
+ struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+ struct hisi_sas_tmf_task *tmf = slot->tmf;
+ int has_data = 0, priority = !!tmf;
+ unsigned char prot_op;
+ u8 *buf_cmd;
+ u32 dw1 = 0, dw2 = 0, len = 0;
+
+ hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
+ (2 << CMD_HDR_TLR_CTRL_OFF) |
+ (port->id << CMD_HDR_PORT_OFF) |
+ (priority << CMD_HDR_PRIORITY_OFF) |
+ (1 << CMD_HDR_CMD_OFF)); /* ssp */
+
+ dw1 = 1 << CMD_HDR_VDTL_OFF;
+ if (tmf) {
+ dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF;
+ dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF;
+ } else {
+ prot_op = scsi_get_prot_op(scsi_cmnd);
+ dw1 |= 1 << CMD_HDR_FRAME_TYPE_OFF;
+ switch (scsi_cmnd->sc_data_direction) {
+ case DMA_TO_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
+ break;
+ case DMA_FROM_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
+ break;
+ default:
+ dw1 &= ~CMD_HDR_DIR_MSK;
+ }
+ }
+
+ /* map itct entry */
+ dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
+
+ dw2 = (((sizeof(struct ssp_command_iu) + sizeof(struct ssp_frame_hdr)
+ + 3) / 4) << CMD_HDR_CFL_OFF) |
+ ((HISI_SAS_MAX_SSP_RESP_SZ / 4) << CMD_HDR_MRFL_OFF) |
+ (2 << CMD_HDR_SG_MOD_OFF);
+ hdr->dw2 = cpu_to_le32(dw2);
+ hdr->transfer_tags = cpu_to_le32(slot->idx);
+
+ if (has_data) {
+ prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter,
+ slot->n_elem);
+
+ if (scsi_prot_sg_count(scsi_cmnd))
+ prep_prd_sge_dif_v3_hw(hisi_hba, slot, hdr,
+ scsi_prot_sglist(scsi_cmnd),
+ slot->n_elem_dif);
+ }
+
+ hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+
+ buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
+ sizeof(struct ssp_frame_hdr);
+
+ memcpy(buf_cmd, &task->ssp_task.LUN, 8);
+ if (!tmf) {
+ buf_cmd[9] = ssp_task->task_attr | (ssp_task->task_prio << 3);
+ memcpy(buf_cmd + 12, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
+ } else {
+ buf_cmd[10] = tmf->tmf;
+ switch (tmf->tmf) {
+ case TMF_ABORT_TASK:
+ case TMF_QUERY_TASK:
+ buf_cmd[12] =
+ (tmf->tag_of_task_to_be_managed >> 8) & 0xff;
+ buf_cmd[13] =
+ tmf->tag_of_task_to_be_managed & 0xff;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (has_data && (prot_op != SCSI_PROT_NORMAL)) {
+ struct hisi_sas_protect_iu_v3_hw prot;
+ u8 *buf_cmd_prot;
+
+ hdr->dw7 |= cpu_to_le32(1 << CMD_HDR_ADDR_MODE_SEL_OFF);
+ dw1 |= CMD_HDR_PIR_MSK;
+ buf_cmd_prot = hisi_sas_cmd_hdr_addr_mem(slot) +
+ sizeof(struct ssp_frame_hdr) +
+ sizeof(struct ssp_command_iu);
+
+ memset(&prot, 0, sizeof(struct hisi_sas_protect_iu_v3_hw));
+ fill_prot_v3_hw(scsi_cmnd, &prot);
+ memcpy(buf_cmd_prot, &prot,
+ sizeof(struct hisi_sas_protect_iu_v3_hw));
+ /*
+ * For READ, we need length of info read to memory, while for
+ * WRITE we need length of data written to the disk.
+ */
+ if (prot_op == SCSI_PROT_WRITE_INSERT ||
+ prot_op == SCSI_PROT_READ_INSERT ||
+ prot_op == SCSI_PROT_WRITE_PASS ||
+ prot_op == SCSI_PROT_READ_PASS) {
+ unsigned int interval = scsi_prot_interval(scsi_cmnd);
+ unsigned int ilog2_interval = ilog2(interval);
+
+ len = (task->total_xfer_len >> ilog2_interval) * 8;
+ }
+ }
+
+ hdr->dw1 = cpu_to_le32(dw1);
+
+ hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len + len);
+}
+
+static void prep_smp_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct domain_device *device = task->dev;
+ struct hisi_sas_port *port = slot->port;
+ struct scatterlist *sg_req;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ dma_addr_t req_dma_addr;
+ unsigned int req_len;
+
+ /* req */
+ sg_req = &task->smp_task.smp_req;
+ req_len = sg_dma_len(sg_req);
+ req_dma_addr = sg_dma_address(sg_req);
+
+ /* create header */
+ /* dw0 */
+ hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
+ (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
+ (2 << CMD_HDR_CMD_OFF)); /* smp */
+
+ /* map itct entry */
+ hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) |
+ (1 << CMD_HDR_FRAME_TYPE_OFF) |
+ (DIR_NO_DATA << CMD_HDR_DIR_OFF));
+
+ /* dw2 */
+ hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) |
+ (HISI_SAS_MAX_SMP_RESP_SZ / 4 <<
+ CMD_HDR_MRFL_OFF));
+
+ hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
+
+ hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+}
+
+static void prep_ata_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct domain_device *device = task->dev;
+ struct domain_device *parent_dev = device->parent;
+ struct hisi_sas_device *sas_dev = device->lldd_dev;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct asd_sas_port *sas_port = device->port;
+ struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
+ u8 *buf_cmd;
+ int has_data = 0, hdr_tag = 0;
+ u32 dw1 = 0, dw2 = 0;
+
+ hdr->dw0 = cpu_to_le32(port->id << CMD_HDR_PORT_OFF);
+ if (parent_dev && dev_is_expander(parent_dev->dev_type))
+ hdr->dw0 |= cpu_to_le32(3 << CMD_HDR_CMD_OFF);
+ else
+ hdr->dw0 |= cpu_to_le32(4U << CMD_HDR_CMD_OFF);
+
+ switch (task->data_dir) {
+ case DMA_TO_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
+ break;
+ case DMA_FROM_DEVICE:
+ has_data = 1;
+ dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
+ break;
+ default:
+ dw1 &= ~CMD_HDR_DIR_MSK;
+ }
+
+ if ((task->ata_task.fis.command == ATA_CMD_DEV_RESET) &&
+ (task->ata_task.fis.control & ATA_SRST))
+ dw1 |= 1 << CMD_HDR_RESET_OFF;
+
+ dw1 |= (hisi_sas_get_ata_protocol(
+ &task->ata_task.fis, task->data_dir))
+ << CMD_HDR_FRAME_TYPE_OFF;
+ dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
+
+ if (FIS_CMD_IS_UNCONSTRAINED(task->ata_task.fis))
+ dw1 |= 1 << CMD_HDR_UNCON_CMD_OFF;
+
+ hdr->dw1 = cpu_to_le32(dw1);
+
+ /* dw2 */
+ if (task->ata_task.use_ncq) {
+ struct ata_queued_cmd *qc = task->uldd_task;
+
+ hdr_tag = qc->tag;
+ task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
+ dw2 |= hdr_tag << CMD_HDR_NCQ_TAG_OFF;
+ }
+
+ dw2 |= (HISI_SAS_MAX_STP_RESP_SZ / 4) << CMD_HDR_CFL_OFF |
+ 2 << CMD_HDR_SG_MOD_OFF;
+ hdr->dw2 = cpu_to_le32(dw2);
+
+ /* dw3 */
+ hdr->transfer_tags = cpu_to_le32(slot->idx);
+
+ if (has_data)
+ prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter,
+ slot->n_elem);
+
+ hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
+ hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
+ hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
+
+ buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot);
+
+ if (likely(!task->ata_task.device_control_reg_update))
+ task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
+ /* fill in command FIS */
+ memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
+}
+
+static void prep_abort_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot,
+ int device_id, int abort_flag, int tag_to_abort)
+{
+ struct sas_task *task = slot->task;
+ struct domain_device *dev = task->dev;
+ struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+ struct hisi_sas_port *port = slot->port;
+
+ /* dw0 */
+ hdr->dw0 = cpu_to_le32((5U << CMD_HDR_CMD_OFF) | /*abort*/
+ (port->id << CMD_HDR_PORT_OFF) |
+ (dev_is_sata(dev)
+ << CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
+ (abort_flag
+ << CMD_HDR_ABORT_FLAG_OFF));
+
+ /* dw1 */
+ hdr->dw1 = cpu_to_le32(device_id
+ << CMD_HDR_DEV_ID_OFF);
+
+ /* dw7 */
+ hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF);
+ hdr->transfer_tags = cpu_to_le32(slot->idx);
+}
+
+static irqreturn_t phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
+{
+ int i;
+ irqreturn_t res;
+ u32 context, port_id, link_rate;
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct device *dev = hisi_hba->dev;
+ unsigned long flags;
+
+ del_timer(&phy->timer);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1);
+
+ port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+ port_id = (port_id >> (4 * phy_no)) & 0xf;
+ link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
+ link_rate = (link_rate >> (phy_no * 4)) & 0xf;
+
+ if (port_id == 0xf) {
+ dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
+ res = IRQ_NONE;
+ goto end;
+ }
+ sas_phy->linkrate = link_rate;
+ phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+
+ /* Check for SATA dev */
+ context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
+ if (context & (1 << phy_no)) {
+ struct hisi_sas_initial_fis *initial_fis;
+ struct dev_to_host_fis *fis;
+ u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
+ struct Scsi_Host *shost = hisi_hba->shost;
+
+ dev_info(dev, "phyup: phy%d link_rate=%d(sata)\n", phy_no, link_rate);
+ initial_fis = &hisi_hba->initial_fis[phy_no];
+ fis = &initial_fis->fis;
+
+ /* check ERR bit of Status Register */
+ if (fis->status & ATA_ERR) {
+ dev_warn(dev, "sata int: phy%d FIS status: 0x%x\n",
+ phy_no, fis->status);
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ sas_phy->oob_mode = SATA_OOB_MODE;
+ attached_sas_addr[0] = 0x50;
+ attached_sas_addr[6] = shost->host_no;
+ attached_sas_addr[7] = phy_no;
+ memcpy(sas_phy->attached_sas_addr,
+ attached_sas_addr,
+ SAS_ADDR_SIZE);
+ memcpy(sas_phy->frame_rcvd, fis,
+ sizeof(struct dev_to_host_fis));
+ phy->phy_type |= PORT_TYPE_SATA;
+ phy->identify.device_type = SAS_SATA_DEV;
+ phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
+ phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
+ } else {
+ u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
+ struct sas_identify_frame *id =
+ (struct sas_identify_frame *)frame_rcvd;
+
+ dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate);
+ for (i = 0; i < 6; i++) {
+ u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
+ RX_IDAF_DWORD0 + (i * 4));
+ frame_rcvd[i] = __swab32(idaf);
+ }
+ sas_phy->oob_mode = SAS_OOB_MODE;
+ memcpy(sas_phy->attached_sas_addr,
+ &id->sas_addr,
+ SAS_ADDR_SIZE);
+ phy->phy_type |= PORT_TYPE_SAS;
+ phy->identify.device_type = id->dev_type;
+ phy->frame_rcvd_size = sizeof(struct sas_identify_frame);
+ if (phy->identify.device_type == SAS_END_DEVICE)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SSP;
+ else if (phy->identify.device_type != SAS_PHY_UNUSED)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SMP;
+ }
+
+ phy->port_id = port_id;
+ phy->phy_attached = 1;
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
+ res = IRQ_HANDLED;
+ spin_lock_irqsave(&phy->lock, flags);
+ if (phy->reset_completion) {
+ phy->in_reset = 0;
+ complete(phy->reset_completion);
+ }
+ spin_unlock_irqrestore(&phy->lock, flags);
+end:
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
+ CHL_INT0_SL_PHY_ENABLE_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 0);
+
+ return res;
+}
+
+static irqreturn_t phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ u32 phy_state, sl_ctrl, txid_auto;
+ struct device *dev = hisi_hba->dev;
+
+ atomic_inc(&phy->down_cnt);
+
+ del_timer(&phy->timer);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);
+
+ phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+ dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state);
+ hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0);
+
+ sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL,
+ sl_ctrl&(~SL_CTA_MSK));
+
+ txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
+ txid_auto | CT3_MSK);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ u32 bcast_status;
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
+ bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS);
+ if ((bcast_status & RX_BCAST_CHG_MSK) &&
+ !test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
+ sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
+ CHL_INT0_SL_RX_BCST_ACK_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t int_phy_up_down_bcast_v3_hw(int irq_no, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ u32 irq_msk;
+ int phy_no = 0;
+ irqreturn_t res = IRQ_NONE;
+
+ irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS)
+ & 0x11111111;
+ while (irq_msk) {
+ if (irq_msk & 1) {
+ u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no,
+ CHL_INT0);
+ u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+ int rdy = phy_state & (1 << phy_no);
+
+ if (rdy) {
+ if (irq_value & CHL_INT0_SL_PHY_ENABLE_MSK)
+ /* phy up */
+ if (phy_up_v3_hw(phy_no, hisi_hba)
+ == IRQ_HANDLED)
+ res = IRQ_HANDLED;
+ if (irq_value & CHL_INT0_SL_RX_BCST_ACK_MSK)
+ /* phy bcast */
+ if (phy_bcast_v3_hw(phy_no, hisi_hba)
+ == IRQ_HANDLED)
+ res = IRQ_HANDLED;
+ } else {
+ if (irq_value & CHL_INT0_NOT_RDY_MSK)
+ /* phy down */
+ if (phy_down_v3_hw(phy_no, hisi_hba)
+ == IRQ_HANDLED)
+ res = IRQ_HANDLED;
+ }
+ }
+ irq_msk >>= 4;
+ phy_no++;
+ }
+
+ return res;
+}
+
+static const struct hisi_sas_hw_error port_axi_error[] = {
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_ECC_MB_ERR_OFF),
+ .msg = "dmac_tx_ecc_bad_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_ECC_MB_ERR_OFF),
+ .msg = "dmac_rx_ecc_bad_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF),
+ .msg = "dma_tx_axi_wr_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF),
+ .msg = "dma_tx_axi_rd_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF),
+ .msg = "dma_rx_axi_wr_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF),
+ .msg = "dma_rx_axi_rd_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_FIFO_ERR_OFF),
+ .msg = "dma_tx_fifo_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_FIFO_ERR_OFF),
+ .msg = "dma_rx_fifo_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_RUSER_ERR_OFF),
+ .msg = "dma_tx_axi_ruser_err",
+ },
+ {
+ .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_RUSER_ERR_OFF),
+ .msg = "dma_rx_axi_ruser_err",
+ },
+};
+
+static void handle_chl_int1_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT1);
+ u32 irq_msk = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT1_MSK);
+ struct device *dev = hisi_hba->dev;
+ int i;
+
+ irq_value &= ~irq_msk;
+ if (!irq_value)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(port_axi_error); i++) {
+ const struct hisi_sas_hw_error *error = &port_axi_error[i];
+
+ if (!(irq_value & error->irq_msk))
+ continue;
+
+ dev_err(dev, "%s error (phy%d 0x%x) found!\n",
+ error->msg, phy_no, irq_value);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT1, irq_value);
+}
+
+static void phy_get_events_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct sas_phy *sphy = sas_phy->phy;
+ unsigned long flags;
+ u32 reg_value;
+
+ spin_lock_irqsave(&phy->lock, flags);
+
+ /* loss dword sync */
+ reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_DWS_LOST);
+ sphy->loss_of_dword_sync_count += reg_value;
+
+ /* phy reset problem */
+ reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_RESET_PROB);
+ sphy->phy_reset_problem_count += reg_value;
+
+ /* invalid dword */
+ reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_INVLD_DW);
+ sphy->invalid_dword_count += reg_value;
+
+ /* disparity err */
+ reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_DISP_ERR);
+ sphy->running_disparity_error_count += reg_value;
+
+ /* code violation error */
+ reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_CODE_ERR);
+ phy->code_violation_err_count += reg_value;
+
+ spin_unlock_irqrestore(&phy->lock, flags);
+}
+
+static void handle_chl_int2_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 irq_msk = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2_MSK);
+ u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
+ struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+ struct pci_dev *pci_dev = hisi_hba->pci_dev;
+ struct device *dev = hisi_hba->dev;
+ static const u32 msk = BIT(CHL_INT2_RX_DISP_ERR_OFF) |
+ BIT(CHL_INT2_RX_CODE_ERR_OFF) |
+ BIT(CHL_INT2_RX_INVLD_DW_OFF);
+
+ irq_value &= ~irq_msk;
+ if (!irq_value)
+ return;
+
+ if (irq_value & BIT(CHL_INT2_SL_IDAF_TOUT_CONF_OFF)) {
+ dev_warn(dev, "phy%d identify timeout\n", phy_no);
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+ }
+
+ if (irq_value & BIT(CHL_INT2_STP_LINK_TIMEOUT_OFF)) {
+ u32 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no,
+ STP_LINK_TIMEOUT_STATE);
+
+ dev_warn(dev, "phy%d stp link timeout (0x%x)\n",
+ phy_no, reg_value);
+ if (reg_value & BIT(4))
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+ }
+
+ if (pci_dev->revision > 0x20 && (irq_value & msk)) {
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ struct sas_phy *sphy = sas_phy->phy;
+
+ phy_get_events_v3_hw(hisi_hba, phy_no);
+
+ if (irq_value & BIT(CHL_INT2_RX_INVLD_DW_OFF))
+ dev_info(dev, "phy%d invalid dword cnt: %u\n", phy_no,
+ sphy->invalid_dword_count);
+
+ if (irq_value & BIT(CHL_INT2_RX_CODE_ERR_OFF))
+ dev_info(dev, "phy%d code violation cnt: %u\n", phy_no,
+ phy->code_violation_err_count);
+
+ if (irq_value & BIT(CHL_INT2_RX_DISP_ERR_OFF))
+ dev_info(dev, "phy%d disparity error cnt: %u\n", phy_no,
+ sphy->running_disparity_error_count);
+ }
+
+ if ((irq_value & BIT(CHL_INT2_RX_INVLD_DW_OFF)) &&
+ (pci_dev->revision == 0x20)) {
+ u32 reg_value;
+ int rc;
+
+ rc = hisi_sas_read32_poll_timeout_atomic(
+ HILINK_ERR_DFX, reg_value,
+ !((reg_value >> 8) & BIT(phy_no)),
+ 1000, 10000);
+ if (rc)
+ hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
+ }
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2, irq_value);
+}
+
+static void handle_chl_int0_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
+
+ if (irq_value0 & CHL_INT0_PHY_RDY_MSK)
+ hisi_sas_phy_oob_ready(hisi_hba, phy_no);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
+ irq_value0 & (~CHL_INT0_SL_RX_BCST_ACK_MSK)
+ & (~CHL_INT0_SL_PHY_ENABLE_MSK)
+ & (~CHL_INT0_NOT_RDY_MSK));
+}
+
+static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p)
+{
+ struct hisi_hba *hisi_hba = p;
+ u32 irq_msk;
+ int phy_no = 0;
+
+ irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS)
+ & CHNL_INT_STS_MSK;
+
+ while (irq_msk) {
+ if (irq_msk & (CHNL_INT_STS_INT0_MSK << (phy_no * CHNL_WIDTH)))
+ handle_chl_int0_v3_hw(hisi_hba, phy_no);
+
+ if (irq_msk & (CHNL_INT_STS_INT1_MSK << (phy_no * CHNL_WIDTH)))
+ handle_chl_int1_v3_hw(hisi_hba, phy_no);
+
+ if (irq_msk & (CHNL_INT_STS_INT2_MSK << (phy_no * CHNL_WIDTH)))
+ handle_chl_int2_v3_hw(hisi_hba, phy_no);
+
+ irq_msk &= ~(CHNL_INT_STS_PHY_MSK << (phy_no * CHNL_WIDTH));
+ phy_no++;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static const struct hisi_sas_hw_error multi_bit_ecc_errors[] = {
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_DQE_ECC_MB_OFF),
+ .msk = HGC_DQE_ECC_MB_ADDR_MSK,
+ .shift = HGC_DQE_ECC_MB_ADDR_OFF,
+ .msg = "hgc_dqe_eccbad_intr",
+ .reg = HGC_DQE_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_IOST_ECC_MB_OFF),
+ .msk = HGC_IOST_ECC_MB_ADDR_MSK,
+ .shift = HGC_IOST_ECC_MB_ADDR_OFF,
+ .msg = "hgc_iost_eccbad_intr",
+ .reg = HGC_IOST_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_ITCT_ECC_MB_OFF),
+ .msk = HGC_ITCT_ECC_MB_ADDR_MSK,
+ .shift = HGC_ITCT_ECC_MB_ADDR_OFF,
+ .msg = "hgc_itct_eccbad_intr",
+ .reg = HGC_ITCT_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF),
+ .msk = HGC_LM_DFX_STATUS2_IOSTLIST_MSK,
+ .shift = HGC_LM_DFX_STATUS2_IOSTLIST_OFF,
+ .msg = "hgc_iostl_eccbad_intr",
+ .reg = HGC_LM_DFX_STATUS2,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF),
+ .msk = HGC_LM_DFX_STATUS2_ITCTLIST_MSK,
+ .shift = HGC_LM_DFX_STATUS2_ITCTLIST_OFF,
+ .msg = "hgc_itctl_eccbad_intr",
+ .reg = HGC_LM_DFX_STATUS2,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_CQE_ECC_MB_OFF),
+ .msk = HGC_CQE_ECC_MB_ADDR_MSK,
+ .shift = HGC_CQE_ECC_MB_ADDR_OFF,
+ .msg = "hgc_cqe_eccbad_intr",
+ .reg = HGC_CQE_ECC_ADDR,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM0_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM0_OFF,
+ .msg = "rxm_mem0_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM1_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM1_OFF,
+ .msg = "rxm_mem1_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS14_MEM2_MSK,
+ .shift = HGC_RXM_DFX_STATUS14_MEM2_OFF,
+ .msg = "rxm_mem2_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS14,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF),
+ .msk = HGC_RXM_DFX_STATUS15_MEM3_MSK,
+ .shift = HGC_RXM_DFX_STATUS15_MEM3_OFF,
+ .msg = "rxm_mem3_eccbad_intr",
+ .reg = HGC_RXM_DFX_STATUS15,
+ },
+ {
+ .irq_msk = BIT(SAS_ECC_INTR_OOO_RAM_ECC_MB_OFF),
+ .msk = AM_ROB_ECC_ERR_ADDR_MSK,
+ .shift = AM_ROB_ECC_ERR_ADDR_OFF,
+ .msg = "ooo_ram_eccbad_intr",
+ .reg = AM_ROB_ECC_ERR_ADDR,
+ },
+};
+
+static void multi_bit_ecc_error_process_v3_hw(struct hisi_hba *hisi_hba,
+ u32 irq_value)
+{
+ struct device *dev = hisi_hba->dev;
+ const struct hisi_sas_hw_error *ecc_error;
+ u32 val;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(multi_bit_ecc_errors); i++) {
+ ecc_error = &multi_bit_ecc_errors[i];
+ if (irq_value & ecc_error->irq_msk) {
+ val = hisi_sas_read32(hisi_hba, ecc_error->reg);
+ val &= ecc_error->msk;
+ val >>= ecc_error->shift;
+ dev_err(dev, "%s (0x%x) found: mem addr is 0x%08X\n",
+ ecc_error->msg, irq_value, val);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+ }
+}
+
+static void fatal_ecc_int_v3_hw(struct hisi_hba *hisi_hba)
+{
+ u32 irq_value, irq_msk;
+
+ irq_msk = hisi_sas_read32(hisi_hba, SAS_ECC_INTR_MSK);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xffffffff);
+
+ irq_value = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
+ if (irq_value)
+ multi_bit_ecc_error_process_v3_hw(hisi_hba, irq_value);
+
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR, irq_value);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, irq_msk);
+}
+
+static const struct hisi_sas_hw_error axi_error[] = {
+ { .msk = BIT(0), .msg = "IOST_AXI_W_ERR" },
+ { .msk = BIT(1), .msg = "IOST_AXI_R_ERR" },
+ { .msk = BIT(2), .msg = "ITCT_AXI_W_ERR" },
+ { .msk = BIT(3), .msg = "ITCT_AXI_R_ERR" },
+ { .msk = BIT(4), .msg = "SATA_AXI_W_ERR" },
+ { .msk = BIT(5), .msg = "SATA_AXI_R_ERR" },
+ { .msk = BIT(6), .msg = "DQE_AXI_R_ERR" },
+ { .msk = BIT(7), .msg = "CQE_AXI_W_ERR" },
+ {}
+};
+
+static const struct hisi_sas_hw_error fifo_error[] = {
+ { .msk = BIT(8), .msg = "CQE_WINFO_FIFO" },
+ { .msk = BIT(9), .msg = "CQE_MSG_FIFIO" },
+ { .msk = BIT(10), .msg = "GETDQE_FIFO" },
+ { .msk = BIT(11), .msg = "CMDP_FIFO" },
+ { .msk = BIT(12), .msg = "AWTCTRL_FIFO" },
+ {}
+};
+
+static const struct hisi_sas_hw_error fatal_axi_error[] = {
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_WP_DEPTH_OFF),
+ .msg = "write pointer and depth",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF),
+ .msg = "iptt no match slot",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_RP_DEPTH_OFF),
+ .msg = "read pointer and depth",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_AXI_OFF),
+ .reg = HGC_AXI_FIFO_ERR_INFO,
+ .sub = axi_error,
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_FIFO_OFF),
+ .reg = HGC_AXI_FIFO_ERR_INFO,
+ .sub = fifo_error,
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_LM_OFF),
+ .msg = "LM add/fetch list",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_ABT_OFF),
+ .msg = "SAS_HGC_ABT fetch LM list",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_DQE_POISON_OFF),
+ .msg = "read dqe poison",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_IOST_POISON_OFF),
+ .msg = "read iost poison",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_ITCT_POISON_OFF),
+ .msg = "read itct poison",
+ },
+ {
+ .irq_msk = BIT(ENT_INT_SRC3_ITCT_NCQ_POISON_OFF),
+ .msg = "read itct ncq poison",
+ },
+
+};
+
+static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p)
+{
+ u32 irq_value, irq_msk;
+ struct hisi_hba *hisi_hba = p;
+ struct device *dev = hisi_hba->dev;
+ struct pci_dev *pdev = hisi_hba->pci_dev;
+ int i;
+
+ irq_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk | 0x1df00);
+
+ irq_value = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
+ irq_value &= ~irq_msk;
+
+ for (i = 0; i < ARRAY_SIZE(fatal_axi_error); i++) {
+ const struct hisi_sas_hw_error *error = &fatal_axi_error[i];
+
+ if (!(irq_value & error->irq_msk))
+ continue;
+
+ if (error->sub) {
+ const struct hisi_sas_hw_error *sub = error->sub;
+ u32 err_value = hisi_sas_read32(hisi_hba, error->reg);
+
+ for (; sub->msk || sub->msg; sub++) {
+ if (!(err_value & sub->msk))
+ continue;
+
+ dev_err(dev, "%s error (0x%x) found!\n",
+ sub->msg, irq_value);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+ } else {
+ dev_err(dev, "%s error (0x%x) found!\n",
+ error->msg, irq_value);
+ queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+ }
+
+ if (pdev->revision < 0x21) {
+ u32 reg_val;
+
+ reg_val = hisi_sas_read32(hisi_hba,
+ AXI_MASTER_CFG_BASE +
+ AM_CTRL_GLOBAL);
+ reg_val |= AM_CTRL_SHUTDOWN_REQ_MSK;
+ hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
+ AM_CTRL_GLOBAL, reg_val);
+ }
+ }
+
+ fatal_ecc_int_v3_hw(hisi_hba);
+
+ if (irq_value & BIT(ENT_INT_SRC3_ITC_INT_OFF)) {
+ u32 reg_val = hisi_sas_read32(hisi_hba, ITCT_CLR);
+ u32 dev_id = reg_val & ITCT_DEV_MSK;
+ struct hisi_sas_device *sas_dev =
+ &hisi_hba->devices[dev_id];
+
+ hisi_sas_write32(hisi_hba, ITCT_CLR, 0);
+ dev_dbg(dev, "clear ITCT ok\n");
+ complete(sas_dev->completion);
+ }
+
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC3, irq_value & 0x1df00);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk);
+
+ return IRQ_HANDLED;
+}
+
+static bool
+slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task,
+ struct hisi_sas_slot *slot)
+{
+ struct task_status_struct *ts = &task->task_status;
+ struct hisi_sas_complete_v3_hdr *complete_queue =
+ hisi_hba->complete_hdr[slot->cmplt_queue];
+ struct hisi_sas_complete_v3_hdr *complete_hdr =
+ &complete_queue[slot->cmplt_queue_slot];
+ struct hisi_sas_err_record_v3 *record =
+ hisi_sas_status_buf_addr_mem(slot);
+ u32 dma_rx_err_type = le32_to_cpu(record->dma_rx_err_type);
+ u32 trans_tx_fail_type = le32_to_cpu(record->trans_tx_fail_type);
+ u16 sipc_rx_err_type = le16_to_cpu(record->sipc_rx_err_type);
+ u32 dw3 = le32_to_cpu(complete_hdr->dw3);
+ u32 dw0 = le32_to_cpu(complete_hdr->dw0);
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SSP:
+ if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) {
+ /*
+ * If returned response frame is incorrect because of data underflow,
+ * but I/O information has been written to the host memory, we examine
+ * response IU.
+ */
+ if (!(dw0 & CMPLT_HDR_RSPNS_GOOD_MSK) &&
+ (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))
+ return false;
+
+ ts->residual = trans_tx_fail_type;
+ ts->stat = SAS_DATA_UNDERRUN;
+ } else if (dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) {
+ ts->stat = SAS_QUEUE_FULL;
+ slot->abort = 1;
+ } else {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
+ }
+ break;
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ if ((dw0 & CMPLT_HDR_RSPNS_XFRD_MSK) &&
+ (sipc_rx_err_type & RX_FIS_STATUS_ERR_MSK)) {
+ ts->stat = SAS_PROTO_RESPONSE;
+ } else if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) {
+ ts->residual = trans_tx_fail_type;
+ ts->stat = SAS_DATA_UNDERRUN;
+ } else if (dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) {
+ ts->stat = SAS_PHY_DOWN;
+ slot->abort = 1;
+ } else {
+ ts->stat = SAS_OPEN_REJECT;
+ ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
+ }
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
+ break;
+ case SAS_PROTOCOL_SMP:
+ ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ break;
+ default:
+ break;
+ }
+ return true;
+}
+
+static void slot_complete_v3_hw(struct hisi_hba *hisi_hba,
+ struct hisi_sas_slot *slot)
+{
+ struct sas_task *task = slot->task;
+ struct hisi_sas_device *sas_dev;
+ struct device *dev = hisi_hba->dev;
+ struct task_status_struct *ts;
+ struct domain_device *device;
+ struct sas_ha_struct *ha;
+ struct hisi_sas_complete_v3_hdr *complete_queue =
+ hisi_hba->complete_hdr[slot->cmplt_queue];
+ struct hisi_sas_complete_v3_hdr *complete_hdr =
+ &complete_queue[slot->cmplt_queue_slot];
+ unsigned long flags;
+ bool is_internal = slot->is_internal;
+ u32 dw0, dw1, dw3;
+
+ if (unlikely(!task || !task->lldd_task || !task->dev))
+ return;
+
+ ts = &task->task_status;
+ device = task->dev;
+ ha = device->port->ha;
+ sas_dev = device->lldd_dev;
+
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ task->task_state_flags &=
+ ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+ memset(ts, 0, sizeof(*ts));
+ ts->resp = SAS_TASK_COMPLETE;
+
+ if (unlikely(!sas_dev)) {
+ dev_dbg(dev, "slot complete: port has not device\n");
+ ts->stat = SAS_PHY_DOWN;
+ goto out;
+ }
+
+ dw0 = le32_to_cpu(complete_hdr->dw0);
+ dw1 = le32_to_cpu(complete_hdr->dw1);
+ dw3 = le32_to_cpu(complete_hdr->dw3);
+
+ /*
+ * Use SAS+TMF status codes
+ */
+ switch ((dw0 & CMPLT_HDR_ABORT_STAT_MSK) >> CMPLT_HDR_ABORT_STAT_OFF) {
+ case STAT_IO_ABORTED:
+ /* this IO has been aborted by abort command */
+ ts->stat = SAS_ABORTED_TASK;
+ goto out;
+ case STAT_IO_COMPLETE:
+ /* internal abort command complete */
+ ts->stat = TMF_RESP_FUNC_SUCC;
+ goto out;
+ case STAT_IO_NO_DEVICE:
+ ts->stat = TMF_RESP_FUNC_COMPLETE;
+ goto out;
+ case STAT_IO_NOT_VALID:
+ /*
+ * abort single IO, the controller can't find the IO
+ */
+ ts->stat = TMF_RESP_FUNC_FAILED;
+ goto out;
+ default:
+ break;
+ }
+
+ /* check for erroneous completion */
+ if ((dw0 & CMPLT_HDR_CMPLT_MSK) == 0x3) {
+ u32 *error_info = hisi_sas_status_buf_addr_mem(slot);
+
+ if (slot_err_v3_hw(hisi_hba, task, slot)) {
+ if (ts->stat != SAS_DATA_UNDERRUN)
+ dev_info(dev, "erroneous completion iptt=%d task=%pK dev id=%d addr=%016llx CQ hdr: 0x%x 0x%x 0x%x 0x%x Error info: 0x%x 0x%x 0x%x 0x%x\n",
+ slot->idx, task, sas_dev->device_id,
+ SAS_ADDR(device->sas_addr),
+ dw0, dw1, complete_hdr->act, dw3,
+ error_info[0], error_info[1],
+ error_info[2], error_info[3]);
+ if (unlikely(slot->abort)) {
+ sas_task_abort(task);
+ return;
+ }
+ goto out;
+ }
+ }
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SSP: {
+ struct ssp_response_iu *iu =
+ hisi_sas_status_buf_addr_mem(slot) +
+ sizeof(struct hisi_sas_err_record);
+
+ sas_ssp_task_response(dev, task, iu);
+ break;
+ }
+ case SAS_PROTOCOL_SMP: {
+ struct scatterlist *sg_resp = &task->smp_task.smp_resp;
+ void *to = page_address(sg_page(sg_resp));
+
+ ts->stat = SAS_SAM_STAT_GOOD;
+
+ dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
+ DMA_TO_DEVICE);
+ memcpy(to + sg_resp->offset,
+ hisi_sas_status_buf_addr_mem(slot) +
+ sizeof(struct hisi_sas_err_record),
+ sg_resp->length);
+ break;
+ }
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ ts->stat = SAS_SAM_STAT_GOOD;
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
+ break;
+ default:
+ ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
+ break;
+ }
+
+ if (!slot->port->port_attached) {
+ dev_warn(dev, "slot complete: port %d has removed\n",
+ slot->port->sas_port.id);
+ ts->stat = SAS_PHY_DOWN;
+ }
+
+out:
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ dev_info(dev, "slot complete: task(%pK) aborted\n", task);
+ return;
+ }
+ task->task_state_flags |= SAS_TASK_STATE_DONE;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ hisi_sas_slot_task_free(hisi_hba, task, slot);
+
+ if (!is_internal && (task->task_proto != SAS_PROTOCOL_SMP)) {
+ spin_lock_irqsave(&device->done_lock, flags);
+ if (test_bit(SAS_HA_FROZEN, &ha->state)) {
+ spin_unlock_irqrestore(&device->done_lock, flags);
+ dev_info(dev, "slot complete: task(%pK) ignored\n ",
+ task);
+ return;
+ }
+ spin_unlock_irqrestore(&device->done_lock, flags);
+ }
+
+ if (task->task_done)
+ task->task_done(task);
+}
+
+static irqreturn_t cq_thread_v3_hw(int irq_no, void *p)
+{
+ struct hisi_sas_cq *cq = p;
+ struct hisi_hba *hisi_hba = cq->hisi_hba;
+ struct hisi_sas_slot *slot;
+ struct hisi_sas_complete_v3_hdr *complete_queue;
+ u32 rd_point = cq->rd_point, wr_point;
+ int queue = cq->id;
+
+ complete_queue = hisi_hba->complete_hdr[queue];
+
+ wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR +
+ (0x14 * queue));
+
+ while (rd_point != wr_point) {
+ struct hisi_sas_complete_v3_hdr *complete_hdr;
+ struct device *dev = hisi_hba->dev;
+ u32 dw1;
+ int iptt;
+
+ complete_hdr = &complete_queue[rd_point];
+ dw1 = le32_to_cpu(complete_hdr->dw1);
+
+ iptt = dw1 & CMPLT_HDR_IPTT_MSK;
+ if (likely(iptt < HISI_SAS_COMMAND_ENTRIES_V3_HW)) {
+ slot = &hisi_hba->slot_info[iptt];
+ slot->cmplt_queue_slot = rd_point;
+ slot->cmplt_queue = queue;
+ slot_complete_v3_hw(hisi_hba, slot);
+ } else
+ dev_err(dev, "IPTT %d is invalid, discard it.\n", iptt);
+
+ if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
+ rd_point = 0;
+ }
+
+ /* update rd_point */
+ cq->rd_point = rd_point;
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p)
+{
+ struct hisi_sas_cq *cq = p;
+ struct hisi_hba *hisi_hba = cq->hisi_hba;
+ int queue = cq->id;
+
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
+
+ return IRQ_WAKE_THREAD;
+}
+
+static void hisi_sas_v3_free_vectors(void *data)
+{
+ struct pci_dev *pdev = data;
+
+ pci_free_irq_vectors(pdev);
+}
+
+static int interrupt_preinit_v3_hw(struct hisi_hba *hisi_hba)
+{
+ int vectors;
+ int max_msi = HISI_SAS_MSI_COUNT_V3_HW, min_msi;
+ struct Scsi_Host *shost = hisi_hba->shost;
+ struct pci_dev *pdev = hisi_hba->pci_dev;
+ struct irq_affinity desc = {
+ .pre_vectors = BASE_VECTORS_V3_HW,
+ };
+
+ min_msi = MIN_AFFINE_VECTORS_V3_HW;
+ vectors = pci_alloc_irq_vectors_affinity(pdev,
+ min_msi, max_msi,
+ PCI_IRQ_MSI |
+ PCI_IRQ_AFFINITY,
+ &desc);
+ if (vectors < 0)
+ return -ENOENT;
+
+
+ hisi_hba->cq_nvecs = vectors - BASE_VECTORS_V3_HW;
+ shost->nr_hw_queues = hisi_hba->cq_nvecs;
+
+ return devm_add_action(&pdev->dev, hisi_sas_v3_free_vectors, pdev);
+}
+
+static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ struct pci_dev *pdev = hisi_hba->pci_dev;
+ int rc, i;
+
+ rc = devm_request_irq(dev, pci_irq_vector(pdev, 1),
+ int_phy_up_down_bcast_v3_hw, 0,
+ DRV_NAME " phy", hisi_hba);
+ if (rc) {
+ dev_err(dev, "could not request phy interrupt, rc=%d\n", rc);
+ return -ENOENT;
+ }
+
+ rc = devm_request_irq(dev, pci_irq_vector(pdev, 2),
+ int_chnl_int_v3_hw, 0,
+ DRV_NAME " channel", hisi_hba);
+ if (rc) {
+ dev_err(dev, "could not request chnl interrupt, rc=%d\n", rc);
+ return -ENOENT;
+ }
+
+ rc = devm_request_irq(dev, pci_irq_vector(pdev, 11),
+ fatal_axi_int_v3_hw, 0,
+ DRV_NAME " fatal", hisi_hba);
+ if (rc) {
+ dev_err(dev, "could not request fatal interrupt, rc=%d\n", rc);
+ return -ENOENT;
+ }
+
+ if (hisi_sas_intr_conv)
+ dev_info(dev, "Enable interrupt converge\n");
+
+ for (i = 0; i < hisi_hba->cq_nvecs; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ int nr = hisi_sas_intr_conv ? 16 : 16 + i;
+ unsigned long irqflags = hisi_sas_intr_conv ? IRQF_SHARED :
+ IRQF_ONESHOT;
+
+ cq->irq_no = pci_irq_vector(pdev, nr);
+ rc = devm_request_threaded_irq(dev, cq->irq_no,
+ cq_interrupt_v3_hw,
+ cq_thread_v3_hw,
+ irqflags,
+ DRV_NAME " cq", cq);
+ if (rc) {
+ dev_err(dev, "could not request cq%d interrupt, rc=%d\n",
+ i, rc);
+ return -ENOENT;
+ }
+ cq->irq_mask = pci_irq_get_affinity(pdev, i + BASE_VECTORS_V3_HW);
+ if (!cq->irq_mask) {
+ dev_err(dev, "could not get cq%d irq affinity!\n", i);
+ return -ENOENT;
+ }
+ }
+
+ return 0;
+}
+
+static int hisi_sas_v3_init(struct hisi_hba *hisi_hba)
+{
+ int rc;
+
+ rc = hw_init_v3_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ rc = interrupt_init_v3_hw(hisi_hba);
+ if (rc)
+ return rc;
+
+ return 0;
+}
+
+static void phy_set_linkrate_v3_hw(struct hisi_hba *hisi_hba, int phy_no,
+ struct sas_phy_linkrates *r)
+{
+ enum sas_linkrate max = r->maximum_linkrate;
+ u32 prog_phy_link_rate = hisi_sas_phy_read32(hisi_hba, phy_no,
+ PROG_PHY_LINK_RATE);
+
+ prog_phy_link_rate &= ~CFG_PROG_PHY_LINK_RATE_MSK;
+ prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
+ prog_phy_link_rate);
+}
+
+static void interrupt_disable_v3_hw(struct hisi_hba *hisi_hba)
+{
+ struct pci_dev *pdev = hisi_hba->pci_dev;
+ int i;
+
+ synchronize_irq(pci_irq_vector(pdev, 1));
+ synchronize_irq(pci_irq_vector(pdev, 2));
+ synchronize_irq(pci_irq_vector(pdev, 11));
+ for (i = 0; i < hisi_hba->queue_count; i++)
+ hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0x1);
+
+ for (i = 0; i < hisi_hba->cq_nvecs; i++)
+ synchronize_irq(pci_irq_vector(pdev, i + 16));
+
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffffffff);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xffffffff);
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffffff);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x1);
+ hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x1);
+ hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x1);
+ }
+}
+
+static u32 get_phys_state_v3_hw(struct hisi_hba *hisi_hba)
+{
+ return hisi_sas_read32(hisi_hba, PHY_STATE);
+}
+
+static int disable_host_v3_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ u32 status, reg_val;
+ int rc;
+
+ interrupt_disable_v3_hw(hisi_hba);
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0);
+
+ hisi_sas_stop_phys(hisi_hba);
+
+ mdelay(10);
+
+ reg_val = hisi_sas_read32(hisi_hba, AXI_MASTER_CFG_BASE +
+ AM_CTRL_GLOBAL);
+ reg_val |= AM_CTRL_SHUTDOWN_REQ_MSK;
+ hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
+ AM_CTRL_GLOBAL, reg_val);
+
+ /* wait until bus idle */
+ rc = hisi_sas_read32_poll_timeout(AXI_MASTER_CFG_BASE +
+ AM_CURR_TRANS_RETURN, status,
+ status == 0x3, 10, 100);
+ if (rc) {
+ dev_err(dev, "axi bus is not idle, rc=%d\n", rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+static int soft_reset_v3_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ rc = disable_host_v3_hw(hisi_hba);
+ if (rc) {
+ dev_err(dev, "soft reset: disable host failed rc=%d\n", rc);
+ return rc;
+ }
+
+ hisi_sas_init_mem(hisi_hba);
+
+ return hw_init_v3_hw(hisi_hba);
+}
+
+static int write_gpio_v3_hw(struct hisi_hba *hisi_hba, u8 reg_type,
+ u8 reg_index, u8 reg_count, u8 *write_data)
+{
+ struct device *dev = hisi_hba->dev;
+ u32 *data = (u32 *)write_data;
+ int i;
+
+ switch (reg_type) {
+ case SAS_GPIO_REG_TX:
+ if ((reg_index + reg_count) > ((hisi_hba->n_phy + 3) / 4)) {
+ dev_err(dev, "write gpio: invalid reg range[%d, %d]\n",
+ reg_index, reg_index + reg_count - 1);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < reg_count; i++)
+ hisi_sas_write32(hisi_hba,
+ SAS_GPIO_TX_0_1 + (reg_index + i) * 4,
+ data[i]);
+ break;
+ default:
+ dev_err(dev, "write gpio: unsupported or bad reg type %d\n",
+ reg_type);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void wait_cmds_complete_timeout_v3_hw(struct hisi_hba *hisi_hba,
+ int delay_ms, int timeout_ms)
+{
+ struct device *dev = hisi_hba->dev;
+ int entries, entries_old = 0, time;
+
+ for (time = 0; time < timeout_ms; time += delay_ms) {
+ entries = hisi_sas_read32(hisi_hba, CQE_SEND_CNT);
+ if (entries == entries_old)
+ break;
+
+ entries_old = entries;
+ msleep(delay_ms);
+ }
+
+ if (time >= timeout_ms) {
+ dev_dbg(dev, "Wait commands complete timeout!\n");
+ return;
+ }
+
+ dev_dbg(dev, "wait commands complete %dms\n", time);
+}
+
+static ssize_t intr_conv_v3_hw_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return scnprintf(buf, PAGE_SIZE, "%u\n", hisi_sas_intr_conv);
+}
+static DEVICE_ATTR_RO(intr_conv_v3_hw);
+
+static void config_intr_coal_v3_hw(struct hisi_hba *hisi_hba)
+{
+ /* config those registers between enable and disable PHYs */
+ hisi_sas_stop_phys(hisi_hba);
+
+ if (hisi_hba->intr_coal_ticks == 0 ||
+ hisi_hba->intr_coal_count == 0) {
+ hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1);
+ } else {
+ hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x3);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME,
+ hisi_hba->intr_coal_ticks);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT,
+ hisi_hba->intr_coal_count);
+ }
+ phys_init_v3_hw(hisi_hba);
+}
+
+static ssize_t intr_coal_ticks_v3_hw_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n",
+ hisi_hba->intr_coal_ticks);
+}
+
+static ssize_t intr_coal_ticks_v3_hw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+ u32 intr_coal_ticks;
+ int ret;
+
+ ret = kstrtou32(buf, 10, &intr_coal_ticks);
+ if (ret) {
+ dev_err(dev, "Input data of interrupt coalesce unmatch\n");
+ return -EINVAL;
+ }
+
+ if (intr_coal_ticks >= BIT(24)) {
+ dev_err(dev, "intr_coal_ticks must be less than 2^24!\n");
+ return -EINVAL;
+ }
+
+ hisi_hba->intr_coal_ticks = intr_coal_ticks;
+
+ config_intr_coal_v3_hw(hisi_hba);
+
+ return count;
+}
+static DEVICE_ATTR_RW(intr_coal_ticks_v3_hw);
+
+static ssize_t intr_coal_count_v3_hw_show(struct device *dev,
+ struct device_attribute
+ *attr, char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n",
+ hisi_hba->intr_coal_count);
+}
+
+static ssize_t intr_coal_count_v3_hw_store(struct device *dev,
+ struct device_attribute
+ *attr, const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+ u32 intr_coal_count;
+ int ret;
+
+ ret = kstrtou32(buf, 10, &intr_coal_count);
+ if (ret) {
+ dev_err(dev, "Input data of interrupt coalesce unmatch\n");
+ return -EINVAL;
+ }
+
+ if (intr_coal_count >= BIT(8)) {
+ dev_err(dev, "intr_coal_count must be less than 2^8!\n");
+ return -EINVAL;
+ }
+
+ hisi_hba->intr_coal_count = intr_coal_count;
+
+ config_intr_coal_v3_hw(hisi_hba);
+
+ return count;
+}
+static DEVICE_ATTR_RW(intr_coal_count_v3_hw);
+
+static int slave_configure_v3_hw(struct scsi_device *sdev)
+{
+ struct Scsi_Host *shost = dev_to_shost(&sdev->sdev_gendev);
+ struct domain_device *ddev = sdev_to_domain_dev(sdev);
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+ struct device *dev = hisi_hba->dev;
+ int ret = sas_slave_configure(sdev);
+
+ if (ret)
+ return ret;
+ if (!dev_is_sata(ddev))
+ sas_change_queue_depth(sdev, 64);
+
+ if (sdev->type == TYPE_ENCLOSURE)
+ return 0;
+
+ if (!device_link_add(&sdev->sdev_gendev, dev,
+ DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE)) {
+ if (pm_runtime_enabled(dev)) {
+ dev_info(dev, "add device link failed, disable runtime PM for the host\n");
+ pm_runtime_disable(dev);
+ }
+ }
+
+ return 0;
+}
+
+static struct device_attribute *host_attrs_v3_hw[] = {
+ &dev_attr_phy_event_threshold,
+ &dev_attr_intr_conv_v3_hw,
+ &dev_attr_intr_coal_ticks_v3_hw,
+ &dev_attr_intr_coal_count_v3_hw,
+ NULL
+};
+
+static const struct hisi_sas_debugfs_reg_lu debugfs_port_reg_lu[] = {
+ HISI_SAS_DEBUGFS_REG(PHY_CFG),
+ HISI_SAS_DEBUGFS_REG(HARD_PHY_LINKRATE),
+ HISI_SAS_DEBUGFS_REG(PROG_PHY_LINK_RATE),
+ HISI_SAS_DEBUGFS_REG(PHY_CTRL),
+ HISI_SAS_DEBUGFS_REG(SL_CFG),
+ HISI_SAS_DEBUGFS_REG(AIP_LIMIT),
+ HISI_SAS_DEBUGFS_REG(SL_CONTROL),
+ HISI_SAS_DEBUGFS_REG(RX_PRIMS_STATUS),
+ HISI_SAS_DEBUGFS_REG(TX_ID_DWORD0),
+ HISI_SAS_DEBUGFS_REG(TX_ID_DWORD1),
+ HISI_SAS_DEBUGFS_REG(TX_ID_DWORD2),
+ HISI_SAS_DEBUGFS_REG(TX_ID_DWORD3),
+ HISI_SAS_DEBUGFS_REG(TX_ID_DWORD4),
+ HISI_SAS_DEBUGFS_REG(TX_ID_DWORD5),
+ HISI_SAS_DEBUGFS_REG(TX_ID_DWORD6),
+ HISI_SAS_DEBUGFS_REG(TXID_AUTO),
+ HISI_SAS_DEBUGFS_REG(RX_IDAF_DWORD0),
+ HISI_SAS_DEBUGFS_REG(RXOP_CHECK_CFG_H),
+ HISI_SAS_DEBUGFS_REG(STP_LINK_TIMER),
+ HISI_SAS_DEBUGFS_REG(STP_LINK_TIMEOUT_STATE),
+ HISI_SAS_DEBUGFS_REG(CON_CFG_DRIVER),
+ HISI_SAS_DEBUGFS_REG(SAS_SSP_CON_TIMER_CFG),
+ HISI_SAS_DEBUGFS_REG(SAS_SMP_CON_TIMER_CFG),
+ HISI_SAS_DEBUGFS_REG(SAS_STP_CON_TIMER_CFG),
+ HISI_SAS_DEBUGFS_REG(CHL_INT0),
+ HISI_SAS_DEBUGFS_REG(CHL_INT1),
+ HISI_SAS_DEBUGFS_REG(CHL_INT2),
+ HISI_SAS_DEBUGFS_REG(CHL_INT0_MSK),
+ HISI_SAS_DEBUGFS_REG(CHL_INT1_MSK),
+ HISI_SAS_DEBUGFS_REG(CHL_INT2_MSK),
+ HISI_SAS_DEBUGFS_REG(SAS_EC_INT_COAL_TIME),
+ HISI_SAS_DEBUGFS_REG(CHL_INT_COAL_EN),
+ HISI_SAS_DEBUGFS_REG(SAS_RX_TRAIN_TIMER),
+ HISI_SAS_DEBUGFS_REG(PHY_CTRL_RDY_MSK),
+ HISI_SAS_DEBUGFS_REG(PHYCTRL_NOT_RDY_MSK),
+ HISI_SAS_DEBUGFS_REG(PHYCTRL_DWS_RESET_MSK),
+ HISI_SAS_DEBUGFS_REG(PHYCTRL_PHY_ENA_MSK),
+ HISI_SAS_DEBUGFS_REG(SL_RX_BCAST_CHK_MSK),
+ HISI_SAS_DEBUGFS_REG(PHYCTRL_OOB_RESTART_MSK),
+ HISI_SAS_DEBUGFS_REG(DMA_TX_STATUS),
+ HISI_SAS_DEBUGFS_REG(DMA_RX_STATUS),
+ HISI_SAS_DEBUGFS_REG(COARSETUNE_TIME),
+ HISI_SAS_DEBUGFS_REG(ERR_CNT_DWS_LOST),
+ HISI_SAS_DEBUGFS_REG(ERR_CNT_RESET_PROB),
+ HISI_SAS_DEBUGFS_REG(ERR_CNT_INVLD_DW),
+ HISI_SAS_DEBUGFS_REG(ERR_CNT_CODE_ERR),
+ HISI_SAS_DEBUGFS_REG(ERR_CNT_DISP_ERR),
+ {}
+};
+
+static const struct hisi_sas_debugfs_reg debugfs_port_reg = {
+ .lu = debugfs_port_reg_lu,
+ .count = 0x100,
+ .base_off = PORT_BASE,
+ .read_port_reg = hisi_sas_phy_read32,
+};
+
+static const struct hisi_sas_debugfs_reg_lu debugfs_global_reg_lu[] = {
+ HISI_SAS_DEBUGFS_REG(DLVRY_QUEUE_ENABLE),
+ HISI_SAS_DEBUGFS_REG(PHY_CONTEXT),
+ HISI_SAS_DEBUGFS_REG(PHY_STATE),
+ HISI_SAS_DEBUGFS_REG(PHY_PORT_NUM_MA),
+ HISI_SAS_DEBUGFS_REG(PHY_CONN_RATE),
+ HISI_SAS_DEBUGFS_REG(ITCT_CLR),
+ HISI_SAS_DEBUGFS_REG(IO_SATA_BROKEN_MSG_ADDR_LO),
+ HISI_SAS_DEBUGFS_REG(IO_SATA_BROKEN_MSG_ADDR_HI),
+ HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_LO),
+ HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_HI),
+ HISI_SAS_DEBUGFS_REG(CFG_MAX_TAG),
+ HISI_SAS_DEBUGFS_REG(HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL),
+ HISI_SAS_DEBUGFS_REG(HGC_SAS_TXFAIL_RETRY_CTRL),
+ HISI_SAS_DEBUGFS_REG(HGC_GET_ITV_TIME),
+ HISI_SAS_DEBUGFS_REG(DEVICE_MSG_WORK_MODE),
+ HISI_SAS_DEBUGFS_REG(OPENA_WT_CONTI_TIME),
+ HISI_SAS_DEBUGFS_REG(I_T_NEXUS_LOSS_TIME),
+ HISI_SAS_DEBUGFS_REG(MAX_CON_TIME_LIMIT_TIME),
+ HISI_SAS_DEBUGFS_REG(BUS_INACTIVE_LIMIT_TIME),
+ HISI_SAS_DEBUGFS_REG(REJECT_TO_OPEN_LIMIT_TIME),
+ HISI_SAS_DEBUGFS_REG(CQ_INT_CONVERGE_EN),
+ HISI_SAS_DEBUGFS_REG(CFG_AGING_TIME),
+ HISI_SAS_DEBUGFS_REG(HGC_DFX_CFG2),
+ HISI_SAS_DEBUGFS_REG(CFG_ABT_SET_QUERY_IPTT),
+ HISI_SAS_DEBUGFS_REG(CFG_ABT_SET_IPTT_DONE),
+ HISI_SAS_DEBUGFS_REG(HGC_IOMB_PROC1_STATUS),
+ HISI_SAS_DEBUGFS_REG(CHNL_INT_STATUS),
+ HISI_SAS_DEBUGFS_REG(HGC_AXI_FIFO_ERR_INFO),
+ HISI_SAS_DEBUGFS_REG(INT_COAL_EN),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_COAL_TIME),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_COAL_CNT),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_COAL_TIME),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_COAL_CNT),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_SRC),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_SRC_MSK),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC1),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC2),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC3),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK1),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK2),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK3),
+ HISI_SAS_DEBUGFS_REG(CHNL_PHYUPDOWN_INT_MSK),
+ HISI_SAS_DEBUGFS_REG(CHNL_ENT_INT_MSK),
+ HISI_SAS_DEBUGFS_REG(HGC_COM_INT_MSK),
+ HISI_SAS_DEBUGFS_REG(SAS_ECC_INTR),
+ HISI_SAS_DEBUGFS_REG(SAS_ECC_INTR_MSK),
+ HISI_SAS_DEBUGFS_REG(HGC_ERR_STAT_EN),
+ HISI_SAS_DEBUGFS_REG(CQE_SEND_CNT),
+ HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_DEPTH),
+ HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_WR_PTR),
+ HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_RD_PTR),
+ HISI_SAS_DEBUGFS_REG(HYPER_STREAM_ID_EN_CFG),
+ HISI_SAS_DEBUGFS_REG(OQ0_INT_SRC_MSK),
+ HISI_SAS_DEBUGFS_REG(COMPL_Q_0_DEPTH),
+ HISI_SAS_DEBUGFS_REG(COMPL_Q_0_WR_PTR),
+ HISI_SAS_DEBUGFS_REG(COMPL_Q_0_RD_PTR),
+ HISI_SAS_DEBUGFS_REG(AWQOS_AWCACHE_CFG),
+ HISI_SAS_DEBUGFS_REG(ARQOS_ARCACHE_CFG),
+ HISI_SAS_DEBUGFS_REG(HILINK_ERR_DFX),
+ HISI_SAS_DEBUGFS_REG(SAS_GPIO_CFG_0),
+ HISI_SAS_DEBUGFS_REG(SAS_GPIO_CFG_1),
+ HISI_SAS_DEBUGFS_REG(SAS_GPIO_TX_0_1),
+ HISI_SAS_DEBUGFS_REG(SAS_CFG_DRIVE_VLD),
+ {}
+};
+
+static const struct hisi_sas_debugfs_reg debugfs_global_reg = {
+ .lu = debugfs_global_reg_lu,
+ .count = 0x800,
+ .read_global_reg = hisi_sas_read32,
+};
+
+static const struct hisi_sas_debugfs_reg_lu debugfs_axi_reg_lu[] = {
+ HISI_SAS_DEBUGFS_REG(AM_CFG_MAX_TRANS),
+ HISI_SAS_DEBUGFS_REG(AM_CFG_SINGLE_PORT_MAX_TRANS),
+ HISI_SAS_DEBUGFS_REG(AXI_CFG),
+ HISI_SAS_DEBUGFS_REG(AM_ROB_ECC_ERR_ADDR),
+ {}
+};
+
+static const struct hisi_sas_debugfs_reg debugfs_axi_reg = {
+ .lu = debugfs_axi_reg_lu,
+ .count = 0x61,
+ .base_off = AXI_MASTER_CFG_BASE,
+ .read_global_reg = hisi_sas_read32,
+};
+
+static const struct hisi_sas_debugfs_reg_lu debugfs_ras_reg_lu[] = {
+ HISI_SAS_DEBUGFS_REG(SAS_RAS_INTR0),
+ HISI_SAS_DEBUGFS_REG(SAS_RAS_INTR1),
+ HISI_SAS_DEBUGFS_REG(SAS_RAS_INTR0_MASK),
+ HISI_SAS_DEBUGFS_REG(SAS_RAS_INTR1_MASK),
+ HISI_SAS_DEBUGFS_REG(CFG_SAS_RAS_INTR_MASK),
+ HISI_SAS_DEBUGFS_REG(SAS_RAS_INTR2),
+ HISI_SAS_DEBUGFS_REG(SAS_RAS_INTR2_MASK),
+ {}
+};
+
+static const struct hisi_sas_debugfs_reg debugfs_ras_reg = {
+ .lu = debugfs_ras_reg_lu,
+ .count = 0x10,
+ .base_off = RAS_BASE,
+ .read_global_reg = hisi_sas_read32,
+};
+
+static void debugfs_snapshot_prepare_v3_hw(struct hisi_hba *hisi_hba)
+{
+ set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
+
+ wait_cmds_complete_timeout_v3_hw(hisi_hba, 100, 5000);
+
+ hisi_sas_sync_irqs(hisi_hba);
+}
+
+static void debugfs_snapshot_restore_v3_hw(struct hisi_hba *hisi_hba)
+{
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
+ (u32)((1ULL << hisi_hba->queue_count) - 1));
+
+ clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+}
+
+static void read_iost_itct_cache_v3_hw(struct hisi_hba *hisi_hba,
+ enum hisi_sas_debugfs_cache_type type,
+ u32 *cache)
+{
+ u32 cache_dw_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ *
+ HISI_SAS_IOST_ITCT_CACHE_NUM;
+ struct device *dev = hisi_hba->dev;
+ u32 *buf = cache;
+ u32 i, val;
+
+ hisi_sas_write32(hisi_hba, TAB_RD_TYPE, type);
+
+ for (i = 0; i < HISI_SAS_IOST_ITCT_CACHE_DW_SZ; i++) {
+ val = hisi_sas_read32(hisi_hba, TAB_DFX);
+ if (val == 0xffffffff)
+ break;
+ }
+
+ if (val != 0xffffffff) {
+ dev_err(dev, "Issue occurred in reading IOST/ITCT cache!\n");
+ return;
+ }
+
+ memset(buf, 0, cache_dw_size * 4);
+ buf[0] = val;
+
+ for (i = 1; i < cache_dw_size; i++)
+ buf[i] = hisi_sas_read32(hisi_hba, TAB_DFX);
+}
+
+static void hisi_sas_bist_test_prep_v3_hw(struct hisi_hba *hisi_hba)
+{
+ u32 reg_val;
+ int phy_no = hisi_hba->debugfs_bist_phy_no;
+ int i;
+
+ /* disable PHY */
+ hisi_sas_phy_enable(hisi_hba, phy_no, 0);
+
+ /* update FFE */
+ for (i = 0; i < FFE_CFG_MAX; i++)
+ hisi_sas_phy_write32(hisi_hba, phy_no, TXDEEMPH_G1 + (i * 0x4),
+ hisi_hba->debugfs_bist_ffe[phy_no][i]);
+
+ /* disable ALOS */
+ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SERDES_CFG);
+ reg_val |= CFG_ALOS_CHK_DISABLE_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SERDES_CFG, reg_val);
+}
+
+static void hisi_sas_bist_test_restore_v3_hw(struct hisi_hba *hisi_hba)
+{
+ u32 reg_val;
+ int phy_no = hisi_hba->debugfs_bist_phy_no;
+
+ /* disable loopback */
+ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL);
+ reg_val &= ~(CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK |
+ CFG_BIST_TEST_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL, reg_val);
+
+ /* enable ALOS */
+ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SERDES_CFG);
+ reg_val &= ~CFG_ALOS_CHK_DISABLE_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, SERDES_CFG, reg_val);
+
+ /* restore the linkrate */
+ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, PROG_PHY_LINK_RATE);
+ /* init OOB link rate as 1.5 Gbits */
+ reg_val &= ~CFG_PROG_OOB_PHY_LINK_RATE_MSK;
+ reg_val |= (0x8 << CFG_PROG_OOB_PHY_LINK_RATE_OFF);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE, reg_val);
+
+ /* enable PHY */
+ hisi_sas_phy_enable(hisi_hba, phy_no, 1);
+}
+
+#define SAS_PHY_BIST_CODE_INIT 0x1
+#define SAS_PHY_BIST_CODE1_INIT 0X80
+static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable)
+{
+ u32 reg_val, mode_tmp;
+ u32 linkrate = hisi_hba->debugfs_bist_linkrate;
+ u32 phy_no = hisi_hba->debugfs_bist_phy_no;
+ u32 *ffe = hisi_hba->debugfs_bist_ffe[phy_no];
+ u32 code_mode = hisi_hba->debugfs_bist_code_mode;
+ u32 path_mode = hisi_hba->debugfs_bist_mode;
+ u32 *fix_code = &hisi_hba->debugfs_bist_fixed_code[0];
+ struct device *dev = hisi_hba->dev;
+
+ dev_info(dev, "BIST info:phy%d link_rate=%d code_mode=%d path_mode=%d ffe={0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x} fixed_code={0x%x, 0x%x}\n",
+ phy_no, linkrate, code_mode, path_mode,
+ ffe[FFE_SAS_1_5_GBPS], ffe[FFE_SAS_3_0_GBPS],
+ ffe[FFE_SAS_6_0_GBPS], ffe[FFE_SAS_12_0_GBPS],
+ ffe[FFE_SATA_1_5_GBPS], ffe[FFE_SATA_3_0_GBPS],
+ ffe[FFE_SATA_6_0_GBPS], fix_code[FIXED_CODE],
+ fix_code[FIXED_CODE_1]);
+ mode_tmp = path_mode ? 2 : 1;
+ if (enable) {
+ /* some preparations before bist test */
+ hisi_sas_bist_test_prep_v3_hw(hisi_hba);
+
+ /* set linkrate of bit test*/
+ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no,
+ PROG_PHY_LINK_RATE);
+ reg_val &= ~CFG_PROG_OOB_PHY_LINK_RATE_MSK;
+ reg_val |= (linkrate << CFG_PROG_OOB_PHY_LINK_RATE_OFF);
+ hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
+ reg_val);
+
+ /* set code mode of bit test */
+ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no,
+ SAS_PHY_BIST_CTRL);
+ reg_val &= ~(CFG_BIST_MODE_SEL_MSK | CFG_LOOP_TEST_MODE_MSK |
+ CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK |
+ CFG_BIST_TEST_MSK);
+ reg_val |= ((code_mode << CFG_BIST_MODE_SEL_OFF) |
+ (mode_tmp << CFG_LOOP_TEST_MODE_OFF) |
+ CFG_BIST_TEST_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL,
+ reg_val);
+
+ /* set the bist init value */
+ if (code_mode == HISI_SAS_BIST_CODE_MODE_FIXED_DATA) {
+ reg_val = hisi_hba->debugfs_bist_fixed_code[0];
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ SAS_PHY_BIST_CODE, reg_val);
+
+ reg_val = hisi_hba->debugfs_bist_fixed_code[1];
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ SAS_PHY_BIST_CODE1, reg_val);
+ } else {
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ SAS_PHY_BIST_CODE,
+ SAS_PHY_BIST_CODE_INIT);
+ hisi_sas_phy_write32(hisi_hba, phy_no,
+ SAS_PHY_BIST_CODE1,
+ SAS_PHY_BIST_CODE1_INIT);
+ }
+
+ mdelay(100);
+ reg_val |= (CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK);
+ hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL,
+ reg_val);
+
+ /* clear error bit */
+ mdelay(100);
+ hisi_sas_phy_read32(hisi_hba, phy_no, SAS_BIST_ERR_CNT);
+ } else {
+ /* disable bist test and recover it */
+ hisi_hba->debugfs_bist_cnt += hisi_sas_phy_read32(hisi_hba,
+ phy_no, SAS_BIST_ERR_CNT);
+ hisi_sas_bist_test_restore_v3_hw(hisi_hba);
+ }
+
+ return 0;
+}
+
+static int hisi_sas_map_queues(struct Scsi_Host *shost)
+{
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+ struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
+
+ return blk_mq_pci_map_queues(qmap, hisi_hba->pci_dev,
+ BASE_VECTORS_V3_HW);
+}
+
+static struct scsi_host_template sht_v3_hw = {
+ .name = DRV_NAME,
+ .proc_name = DRV_NAME,
+ .module = THIS_MODULE,
+ .queuecommand = sas_queuecommand,
+ .dma_need_drain = ata_scsi_dma_need_drain,
+ .target_alloc = sas_target_alloc,
+ .slave_configure = slave_configure_v3_hw,
+ .scan_finished = hisi_sas_scan_finished,
+ .scan_start = hisi_sas_scan_start,
+ .map_queues = hisi_sas_map_queues,
+ .change_queue_depth = sas_change_queue_depth,
+ .bios_param = sas_bios_param,
+ .this_id = -1,
+ .sg_tablesize = HISI_SAS_SGE_PAGE_CNT,
+ .sg_prot_tablesize = HISI_SAS_SGE_PAGE_CNT,
+ .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
+ .eh_device_reset_handler = sas_eh_device_reset_handler,
+ .eh_target_reset_handler = sas_eh_target_reset_handler,
+ .slave_alloc = sas_slave_alloc,
+ .target_destroy = sas_target_destroy,
+ .ioctl = sas_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = sas_ioctl,
+#endif
+ .shost_attrs = host_attrs_v3_hw,
+ .tag_alloc_policy = BLK_TAG_ALLOC_RR,
+ .host_reset = hisi_sas_host_reset,
+ .host_tagset = 1,
+};
+
+static const struct hisi_sas_hw hisi_sas_v3_hw = {
+ .hw_init = hisi_sas_v3_init,
+ .setup_itct = setup_itct_v3_hw,
+ .get_wideport_bitmap = get_wideport_bitmap_v3_hw,
+ .complete_hdr_size = sizeof(struct hisi_sas_complete_v3_hdr),
+ .clear_itct = clear_itct_v3_hw,
+ .sl_notify_ssp = sl_notify_ssp_v3_hw,
+ .prep_ssp = prep_ssp_v3_hw,
+ .prep_smp = prep_smp_v3_hw,
+ .prep_stp = prep_ata_v3_hw,
+ .prep_abort = prep_abort_v3_hw,
+ .start_delivery = start_delivery_v3_hw,
+ .phys_init = phys_init_v3_hw,
+ .phy_start = start_phy_v3_hw,
+ .phy_disable = disable_phy_v3_hw,
+ .phy_hard_reset = phy_hard_reset_v3_hw,
+ .phy_get_max_linkrate = phy_get_max_linkrate_v3_hw,
+ .phy_set_linkrate = phy_set_linkrate_v3_hw,
+ .dereg_device = dereg_device_v3_hw,
+ .soft_reset = soft_reset_v3_hw,
+ .get_phys_state = get_phys_state_v3_hw,
+ .get_events = phy_get_events_v3_hw,
+ .write_gpio = write_gpio_v3_hw,
+ .wait_cmds_complete_timeout = wait_cmds_complete_timeout_v3_hw,
+ .debugfs_reg_array[DEBUGFS_GLOBAL] = &debugfs_global_reg,
+ .debugfs_reg_array[DEBUGFS_AXI] = &debugfs_axi_reg,
+ .debugfs_reg_array[DEBUGFS_RAS] = &debugfs_ras_reg,
+ .debugfs_reg_port = &debugfs_port_reg,
+ .snapshot_prepare = debugfs_snapshot_prepare_v3_hw,
+ .snapshot_restore = debugfs_snapshot_restore_v3_hw,
+ .read_iost_itct_cache = read_iost_itct_cache_v3_hw,
+ .set_bist = debugfs_set_bist_v3_hw,
+};
+
+static struct Scsi_Host *
+hisi_sas_shost_alloc_pci(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost;
+ struct hisi_hba *hisi_hba;
+ struct device *dev = &pdev->dev;
+
+ shost = scsi_host_alloc(&sht_v3_hw, sizeof(*hisi_hba));
+ if (!shost) {
+ dev_err(dev, "shost alloc failed\n");
+ return NULL;
+ }
+ hisi_hba = shost_priv(shost);
+
+ INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler);
+ INIT_WORK(&hisi_hba->debugfs_work, hisi_sas_debugfs_work_handler);
+ hisi_hba->hw = &hisi_sas_v3_hw;
+ hisi_hba->pci_dev = pdev;
+ hisi_hba->dev = dev;
+ hisi_hba->shost = shost;
+ SHOST_TO_SAS_HA(shost) = &hisi_hba->sha;
+
+ if (prot_mask & ~HISI_SAS_PROT_MASK)
+ dev_err(dev, "unsupported protection mask 0x%x, using default (0x0)\n",
+ prot_mask);
+ else
+ hisi_hba->prot_mask = prot_mask;
+
+ if (hisi_sas_get_fw_info(hisi_hba) < 0)
+ goto err_out;
+
+ if (hisi_sas_alloc(hisi_hba)) {
+ hisi_sas_free(hisi_hba);
+ goto err_out;
+ }
+
+ return shost;
+err_out:
+ scsi_host_put(shost);
+ dev_err(dev, "shost alloc failed\n");
+ return NULL;
+}
+
+static int
+hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct Scsi_Host *shost;
+ struct hisi_hba *hisi_hba;
+ struct device *dev = &pdev->dev;
+ struct asd_sas_phy **arr_phy;
+ struct asd_sas_port **arr_port;
+ struct sas_ha_struct *sha;
+ int rc, phy_nr, port_nr, i;
+
+ rc = pci_enable_device(pdev);
+ if (rc)
+ goto err_out;
+
+ pci_set_master(pdev);
+
+ rc = pci_request_regions(pdev, DRV_NAME);
+ if (rc)
+ goto err_out_disable_device;
+
+ rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (rc)
+ rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (rc) {
+ dev_err(dev, "No usable DMA addressing method\n");
+ rc = -ENODEV;
+ goto err_out_regions;
+ }
+
+ shost = hisi_sas_shost_alloc_pci(pdev);
+ if (!shost) {
+ rc = -ENOMEM;
+ goto err_out_regions;
+ }
+
+ sha = SHOST_TO_SAS_HA(shost);
+ hisi_hba = shost_priv(shost);
+ dev_set_drvdata(dev, sha);
+
+ hisi_hba->regs = pcim_iomap(pdev, 5, 0);
+ if (!hisi_hba->regs) {
+ dev_err(dev, "cannot map register\n");
+ rc = -ENOMEM;
+ goto err_out_ha;
+ }
+
+ phy_nr = port_nr = hisi_hba->n_phy;
+
+ arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL);
+ arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL);
+ if (!arr_phy || !arr_port) {
+ rc = -ENOMEM;
+ goto err_out_ha;
+ }
+
+ sha->sas_phy = arr_phy;
+ sha->sas_port = arr_port;
+ sha->core.shost = shost;
+ sha->lldd_ha = hisi_hba;
+
+ shost->transportt = hisi_sas_stt;
+ shost->max_id = HISI_SAS_MAX_DEVICES;
+ shost->max_lun = ~0;
+ shost->max_channel = 1;
+ shost->max_cmd_len = 16;
+ shost->can_queue = HISI_SAS_UNRESERVED_IPTT;
+ shost->cmd_per_lun = HISI_SAS_UNRESERVED_IPTT;
+
+ sha->sas_ha_name = DRV_NAME;
+ sha->dev = dev;
+ sha->lldd_module = THIS_MODULE;
+ sha->sas_addr = &hisi_hba->sas_addr[0];
+ sha->num_phys = hisi_hba->n_phy;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy;
+ sha->sas_port[i] = &hisi_hba->port[i].sas_port;
+ }
+
+ if (hisi_hba->prot_mask) {
+ dev_info(dev, "Registering for DIF/DIX prot_mask=0x%x\n",
+ prot_mask);
+ scsi_host_set_prot(hisi_hba->shost, prot_mask);
+ if (hisi_hba->prot_mask & HISI_SAS_DIX_PROT_MASK)
+ scsi_host_set_guard(hisi_hba->shost,
+ SHOST_DIX_GUARD_CRC);
+ }
+
+ if (hisi_sas_debugfs_enable)
+ hisi_sas_debugfs_init(hisi_hba);
+
+ rc = interrupt_preinit_v3_hw(hisi_hba);
+ if (rc)
+ goto err_out_debugfs;
+ dev_err(dev, "%d hw queues\n", shost->nr_hw_queues);
+ rc = scsi_add_host(shost, dev);
+ if (rc)
+ goto err_out_debugfs;
+
+ rc = sas_register_ha(sha);
+ if (rc)
+ goto err_out_register_ha;
+
+ rc = hisi_hba->hw->hw_init(hisi_hba);
+ if (rc)
+ goto err_out_register_ha;
+
+ scsi_scan_host(shost);
+
+ /*
+ * For the situation that there are ATA disks connected with SAS
+ * controller, it additionally creates ata_port which will affect the
+ * child_count of hisi_hba->dev. Even if suspended all the disks,
+ * ata_port is still and the child_count of hisi_hba->dev is not 0.
+ * So use pm_suspend_ignore_children() to ignore the effect to
+ * hisi_hba->dev.
+ */
+ pm_suspend_ignore_children(dev, true);
+ pm_runtime_put_noidle(&pdev->dev);
+
+ return 0;
+
+err_out_register_ha:
+ scsi_remove_host(shost);
+err_out_debugfs:
+ hisi_sas_debugfs_exit(hisi_hba);
+err_out_ha:
+ hisi_sas_free(hisi_hba);
+ scsi_host_put(shost);
+err_out_regions:
+ pci_release_regions(pdev);
+err_out_disable_device:
+ pci_disable_device(pdev);
+err_out:
+ return rc;
+}
+
+static void
+hisi_sas_v3_destroy_irqs(struct pci_dev *pdev, struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ devm_free_irq(&pdev->dev, pci_irq_vector(pdev, 1), hisi_hba);
+ devm_free_irq(&pdev->dev, pci_irq_vector(pdev, 2), hisi_hba);
+ devm_free_irq(&pdev->dev, pci_irq_vector(pdev, 11), hisi_hba);
+ for (i = 0; i < hisi_hba->cq_nvecs; i++) {
+ struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+ int nr = hisi_sas_intr_conv ? 16 : 16 + i;
+
+ devm_free_irq(&pdev->dev, pci_irq_vector(pdev, nr), cq);
+ }
+}
+
+static void hisi_sas_v3_remove(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct sas_ha_struct *sha = dev_get_drvdata(dev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ struct Scsi_Host *shost = sha->core.shost;
+
+ pm_runtime_get_noresume(dev);
+ if (timer_pending(&hisi_hba->timer))
+ del_timer(&hisi_hba->timer);
+
+ sas_unregister_ha(sha);
+ sas_remove_host(sha->core.shost);
+
+ hisi_sas_v3_destroy_irqs(pdev, hisi_hba);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ hisi_sas_free(hisi_hba);
+ hisi_sas_debugfs_exit(hisi_hba);
+ scsi_host_put(shost);
+}
+
+static void hisi_sas_reset_prepare_v3_hw(struct pci_dev *pdev)
+{
+ struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ dev_info(dev, "FLR prepare\n");
+ set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+ hisi_sas_controller_reset_prepare(hisi_hba);
+
+ rc = disable_host_v3_hw(hisi_hba);
+ if (rc)
+ dev_err(dev, "FLR: disable host failed rc=%d\n", rc);
+}
+
+static void hisi_sas_reset_done_v3_hw(struct pci_dev *pdev)
+{
+ struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ struct device *dev = hisi_hba->dev;
+ int rc;
+
+ hisi_sas_init_mem(hisi_hba);
+
+ rc = hw_init_v3_hw(hisi_hba);
+ if (rc) {
+ dev_err(dev, "FLR: hw init failed rc=%d\n", rc);
+ return;
+ }
+
+ hisi_sas_controller_reset_done(hisi_hba);
+ dev_info(dev, "FLR done\n");
+}
+
+enum {
+ /* instances of the controller */
+ hip08,
+};
+
+static int _suspend_v3_hw(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ struct device *dev = hisi_hba->dev;
+ struct Scsi_Host *shost = hisi_hba->shost;
+ pci_power_t device_state;
+ int rc;
+
+ if (!pdev->pm_cap) {
+ dev_err(dev, "PCI PM not supported\n");
+ return -ENODEV;
+ }
+
+ if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
+ return -EPERM;
+
+ scsi_block_requests(shost);
+ set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+ flush_workqueue(hisi_hba->wq);
+
+ rc = disable_host_v3_hw(hisi_hba);
+ if (rc) {
+ dev_err(dev, "PM suspend: disable host failed rc=%d\n", rc);
+ clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+ clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+ scsi_unblock_requests(shost);
+ return rc;
+ }
+
+ hisi_sas_init_mem(hisi_hba);
+
+ device_state = pci_choose_state(pdev, PMSG_SUSPEND);
+ dev_warn(dev, "entering operating state [D%d]\n",
+ device_state);
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, device_state);
+
+ hisi_sas_release_tasks(hisi_hba);
+
+ sas_suspend_ha(sha);
+ return 0;
+}
+
+static int _resume_v3_hw(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ struct Scsi_Host *shost = hisi_hba->shost;
+ struct device *dev = hisi_hba->dev;
+ unsigned int rc;
+ pci_power_t device_state = pdev->current_state;
+
+ dev_warn(dev, "resuming from operating state [D%d]\n",
+ device_state);
+ pci_set_power_state(pdev, PCI_D0);
+ pci_enable_wake(pdev, PCI_D0, 0);
+ pci_restore_state(pdev);
+ rc = pci_enable_device(pdev);
+ if (rc) {
+ dev_err(dev, "enable device failed during resume (%d)\n", rc);
+ return rc;
+ }
+
+ pci_set_master(pdev);
+ scsi_unblock_requests(shost);
+ clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+
+ sas_prep_resume_ha(sha);
+ rc = hw_init_v3_hw(hisi_hba);
+ if (rc) {
+ scsi_remove_host(shost);
+ pci_disable_device(pdev);
+ return rc;
+ }
+ hisi_hba->hw->phys_init(hisi_hba);
+ sas_resume_ha(sha);
+ clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+
+ return 0;
+}
+
+static int suspend_v3_hw(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ int rc;
+
+ set_bit(HISI_SAS_PM_BIT, &hisi_hba->flags);
+
+ rc = _suspend_v3_hw(device);
+ if (rc)
+ clear_bit(HISI_SAS_PM_BIT, &hisi_hba->flags);
+
+ return rc;
+}
+
+static int resume_v3_hw(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+ struct hisi_hba *hisi_hba = sha->lldd_ha;
+ int rc = _resume_v3_hw(device);
+
+ clear_bit(HISI_SAS_PM_BIT, &hisi_hba->flags);
+
+ return rc;
+}
+
+static const struct pci_device_id sas_v3_pci_table[] = {
+ { PCI_VDEVICE(HUAWEI, 0xa230), hip08 },
+ {}
+};
+MODULE_DEVICE_TABLE(pci, sas_v3_pci_table);
+
+static const struct pci_error_handlers hisi_sas_err_handler = {
+ .reset_prepare = hisi_sas_reset_prepare_v3_hw,
+ .reset_done = hisi_sas_reset_done_v3_hw,
+};
+
+static int runtime_suspend_v3_hw(struct device *dev)
+{
+ return suspend_v3_hw(dev);
+}
+
+static int runtime_resume_v3_hw(struct device *dev)
+{
+ return resume_v3_hw(dev);
+}
+
+static const struct dev_pm_ops hisi_sas_v3_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(suspend_v3_hw, resume_v3_hw)
+ SET_RUNTIME_PM_OPS(runtime_suspend_v3_hw,
+ runtime_resume_v3_hw, NULL)
+};
+
+static struct pci_driver sas_v3_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = sas_v3_pci_table,
+ .probe = hisi_sas_v3_probe,
+ .remove = hisi_sas_v3_remove,
+ .err_handler = &hisi_sas_err_handler,
+ .driver.pm = &hisi_sas_v3_pm_ops,
+};
+
+module_pci_driver(sas_v3_pci_driver);
+module_param_named(intr_conv, hisi_sas_intr_conv, bool, 0444);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
+MODULE_DESCRIPTION("HISILICON SAS controller v3 hw driver based on pci device");
+MODULE_ALIAS("pci:" DRV_NAME);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 22:53:15 +0000