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-rw-r--r--drivers/scsi/smartpqi/smartpqi.h1693
1 files changed, 1693 insertions, 0 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
new file mode 100644
index 000000000..c8235f157
--- /dev/null
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -0,0 +1,1693 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * driver for Microchip PQI-based storage controllers
+ * Copyright (c) 2019-2022 Microchip Technology Inc. and its subsidiaries
+ * Copyright (c) 2016-2018 Microsemi Corporation
+ * Copyright (c) 2016 PMC-Sierra, Inc.
+ *
+ * Questions/Comments/Bugfixes to storagedev@microchip.com
+ *
+ */
+
+#include <linux/io-64-nonatomic-lo-hi.h>
+
+#if !defined(_SMARTPQI_H)
+#define _SMARTPQI_H
+
+#include <scsi/scsi_host.h>
+#include <linux/bsg-lib.h>
+
+#pragma pack(1)
+
+#define PQI_DEVICE_SIGNATURE "PQI DREG"
+
+/* This structure is defined by the PQI specification. */
+struct pqi_device_registers {
+ __le64 signature;
+ u8 function_and_status_code;
+ u8 reserved[7];
+ u8 max_admin_iq_elements;
+ u8 max_admin_oq_elements;
+ u8 admin_iq_element_length; /* in 16-byte units */
+ u8 admin_oq_element_length; /* in 16-byte units */
+ __le16 max_reset_timeout; /* in 100-millisecond units */
+ u8 reserved1[2];
+ __le32 legacy_intx_status;
+ __le32 legacy_intx_mask_set;
+ __le32 legacy_intx_mask_clear;
+ u8 reserved2[28];
+ __le32 device_status;
+ u8 reserved3[4];
+ __le64 admin_iq_pi_offset;
+ __le64 admin_oq_ci_offset;
+ __le64 admin_iq_element_array_addr;
+ __le64 admin_oq_element_array_addr;
+ __le64 admin_iq_ci_addr;
+ __le64 admin_oq_pi_addr;
+ u8 admin_iq_num_elements;
+ u8 admin_oq_num_elements;
+ __le16 admin_queue_int_msg_num;
+ u8 reserved4[4];
+ __le32 device_error;
+ u8 reserved5[4];
+ __le64 error_details;
+ __le32 device_reset;
+ __le32 power_action;
+ u8 reserved6[104];
+};
+
+/*
+ * controller registers
+ *
+ * These are defined by the Microchip implementation.
+ *
+ * Some registers (those named sis_*) are only used when in
+ * legacy SIS mode before we transition the controller into
+ * PQI mode. There are a number of other SIS mode registers,
+ * but we don't use them, so only the SIS registers that we
+ * care about are defined here. The offsets mentioned in the
+ * comments are the offsets from the PCIe BAR 0.
+ */
+struct pqi_ctrl_registers {
+ u8 reserved[0x20];
+ __le32 sis_host_to_ctrl_doorbell; /* 20h */
+ u8 reserved1[0x34 - (0x20 + sizeof(__le32))];
+ __le32 sis_interrupt_mask; /* 34h */
+ u8 reserved2[0x9c - (0x34 + sizeof(__le32))];
+ __le32 sis_ctrl_to_host_doorbell; /* 9Ch */
+ u8 reserved3[0xa0 - (0x9c + sizeof(__le32))];
+ __le32 sis_ctrl_to_host_doorbell_clear; /* A0h */
+ u8 reserved4[0xb0 - (0xa0 + sizeof(__le32))];
+ __le32 sis_driver_scratch; /* B0h */
+ __le32 sis_product_identifier; /* B4h */
+ u8 reserved5[0xbc - (0xb4 + sizeof(__le32))];
+ __le32 sis_firmware_status; /* BCh */
+ u8 reserved6[0xcc - (0xbc + sizeof(__le32))];
+ __le32 sis_ctrl_shutdown_reason_code; /* CCh */
+ u8 reserved7[0x1000 - (0xcc + sizeof(__le32))];
+ __le32 sis_mailbox[8]; /* 1000h */
+ u8 reserved8[0x4000 - (0x1000 + (sizeof(__le32) * 8))];
+ /*
+ * The PQI spec states that the PQI registers should be at
+ * offset 0 from the PCIe BAR 0. However, we can't map
+ * them at offset 0 because that would break compatibility
+ * with the SIS registers. So we map them at offset 4000h.
+ */
+ struct pqi_device_registers pqi_registers; /* 4000h */
+};
+
+#define PQI_DEVICE_REGISTERS_OFFSET 0x4000
+
+/* shutdown reasons for taking the controller offline */
+enum pqi_ctrl_shutdown_reason {
+ PQI_IQ_NOT_DRAINED_TIMEOUT = 1,
+ PQI_LUN_RESET_TIMEOUT = 2,
+ PQI_IO_PENDING_POST_LUN_RESET_TIMEOUT = 3,
+ PQI_NO_HEARTBEAT = 4,
+ PQI_FIRMWARE_KERNEL_NOT_UP = 5,
+ PQI_OFA_RESPONSE_TIMEOUT = 6,
+ PQI_INVALID_REQ_ID = 7,
+ PQI_UNMATCHED_REQ_ID = 8,
+ PQI_IO_PI_OUT_OF_RANGE = 9,
+ PQI_EVENT_PI_OUT_OF_RANGE = 10,
+ PQI_UNEXPECTED_IU_TYPE = 11
+};
+
+enum pqi_io_path {
+ RAID_PATH = 0,
+ AIO_PATH = 1
+};
+
+enum pqi_irq_mode {
+ IRQ_MODE_NONE,
+ IRQ_MODE_INTX,
+ IRQ_MODE_MSIX
+};
+
+struct pqi_sg_descriptor {
+ __le64 address;
+ __le32 length;
+ __le32 flags;
+};
+
+/* manifest constants for the flags field of pqi_sg_descriptor */
+#define CISS_SG_LAST 0x40000000
+#define CISS_SG_CHAIN 0x80000000
+
+struct pqi_iu_header {
+ u8 iu_type;
+ u8 reserved;
+ __le16 iu_length; /* in bytes - does not include the length */
+ /* of this header */
+ __le16 response_queue_id; /* specifies the OQ where the */
+ /* response IU is to be delivered */
+ u16 driver_flags; /* reserved for driver use */
+};
+
+/* manifest constants for pqi_iu_header.driver_flags */
+#define PQI_DRIVER_NONBLOCKABLE_REQUEST 0x1
+
+/*
+ * According to the PQI spec, the IU header is only the first 4 bytes of our
+ * pqi_iu_header structure.
+ */
+#define PQI_REQUEST_HEADER_LENGTH 4
+
+struct pqi_general_admin_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ u8 function_code;
+ union {
+ struct {
+ u8 reserved[33];
+ __le32 buffer_length;
+ struct pqi_sg_descriptor sg_descriptor;
+ } report_device_capability;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[2];
+ __le64 element_array_addr;
+ __le64 ci_addr;
+ __le16 num_elements;
+ __le16 element_length;
+ u8 queue_protocol;
+ u8 reserved2[23];
+ __le32 vendor_specific;
+ } create_operational_iq;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[2];
+ __le64 element_array_addr;
+ __le64 pi_addr;
+ __le16 num_elements;
+ __le16 element_length;
+ u8 queue_protocol;
+ u8 reserved2[3];
+ __le16 int_msg_num;
+ __le16 coalescing_count;
+ __le32 min_coalescing_time;
+ __le32 max_coalescing_time;
+ u8 reserved3[8];
+ __le32 vendor_specific;
+ } create_operational_oq;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[50];
+ } delete_operational_queue;
+
+ struct {
+ u8 reserved;
+ __le16 queue_id;
+ u8 reserved1[46];
+ __le32 vendor_specific;
+ } change_operational_iq_properties;
+
+ } data;
+};
+
+struct pqi_general_admin_response {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ u8 function_code;
+ u8 status;
+ union {
+ struct {
+ u8 status_descriptor[4];
+ __le64 iq_pi_offset;
+ u8 reserved[40];
+ } create_operational_iq;
+
+ struct {
+ u8 status_descriptor[4];
+ __le64 oq_ci_offset;
+ u8 reserved[40];
+ } create_operational_oq;
+ } data;
+};
+
+struct pqi_iu_layer_descriptor {
+ u8 inbound_spanning_supported : 1;
+ u8 reserved : 7;
+ u8 reserved1[5];
+ __le16 max_inbound_iu_length;
+ u8 outbound_spanning_supported : 1;
+ u8 reserved2 : 7;
+ u8 reserved3[5];
+ __le16 max_outbound_iu_length;
+};
+
+struct pqi_device_capability {
+ __le16 data_length;
+ u8 reserved[6];
+ u8 iq_arbitration_priority_support_bitmask;
+ u8 maximum_aw_a;
+ u8 maximum_aw_b;
+ u8 maximum_aw_c;
+ u8 max_arbitration_burst : 3;
+ u8 reserved1 : 4;
+ u8 iqa : 1;
+ u8 reserved2[2];
+ u8 iq_freeze : 1;
+ u8 reserved3 : 7;
+ __le16 max_inbound_queues;
+ __le16 max_elements_per_iq;
+ u8 reserved4[4];
+ __le16 max_iq_element_length;
+ __le16 min_iq_element_length;
+ u8 reserved5[2];
+ __le16 max_outbound_queues;
+ __le16 max_elements_per_oq;
+ __le16 intr_coalescing_time_granularity;
+ __le16 max_oq_element_length;
+ __le16 min_oq_element_length;
+ u8 reserved6[24];
+ struct pqi_iu_layer_descriptor iu_layer_descriptors[32];
+};
+
+#define PQI_MAX_EMBEDDED_SG_DESCRIPTORS 4
+#define PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS 3
+
+struct pqi_raid_path_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 nexus_id;
+ __le32 buffer_length;
+ u8 lun_number[8];
+ __le16 protocol_specific;
+ u8 data_direction : 2;
+ u8 partial : 1;
+ u8 reserved1 : 4;
+ u8 fence : 1;
+ __le16 error_index;
+ u8 reserved2;
+ u8 task_attribute : 3;
+ u8 command_priority : 4;
+ u8 reserved3 : 1;
+ u8 reserved4 : 2;
+ u8 additional_cdb_bytes_usage : 3;
+ u8 reserved5 : 3;
+ u8 cdb[16];
+ u8 reserved6[11];
+ u8 ml_device_lun_number;
+ __le32 timeout;
+ struct pqi_sg_descriptor sg_descriptors[PQI_MAX_EMBEDDED_SG_DESCRIPTORS];
+};
+
+struct pqi_aio_path_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ u8 reserved1[2];
+ __le32 nexus_id;
+ __le32 buffer_length;
+ u8 data_direction : 2;
+ u8 partial : 1;
+ u8 memory_type : 1;
+ u8 fence : 1;
+ u8 encryption_enable : 1;
+ u8 reserved2 : 2;
+ u8 task_attribute : 3;
+ u8 command_priority : 4;
+ u8 reserved3 : 1;
+ __le16 data_encryption_key_index;
+ __le32 encrypt_tweak_lower;
+ __le32 encrypt_tweak_upper;
+ u8 cdb[16];
+ __le16 error_index;
+ u8 num_sg_descriptors;
+ u8 cdb_length;
+ u8 lun_number[8];
+ u8 reserved4[4];
+ struct pqi_sg_descriptor sg_descriptors[PQI_MAX_EMBEDDED_SG_DESCRIPTORS];
+};
+
+#define PQI_RAID1_NVME_XFER_LIMIT (32 * 1024) /* 32 KiB */
+
+struct pqi_aio_r1_path_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 volume_id; /* ID of the RAID volume */
+ __le32 it_nexus_1; /* IT nexus of the 1st drive in the RAID volume */
+ __le32 it_nexus_2; /* IT nexus of the 2nd drive in the RAID volume */
+ __le32 it_nexus_3; /* IT nexus of the 3rd drive in the RAID volume */
+ __le32 data_length; /* total bytes to read/write */
+ u8 data_direction : 2;
+ u8 partial : 1;
+ u8 memory_type : 1;
+ u8 fence : 1;
+ u8 encryption_enable : 1;
+ u8 reserved : 2;
+ u8 task_attribute : 3;
+ u8 command_priority : 4;
+ u8 reserved2 : 1;
+ __le16 data_encryption_key_index;
+ u8 cdb[16];
+ __le16 error_index;
+ u8 num_sg_descriptors;
+ u8 cdb_length;
+ u8 num_drives; /* number of drives in the RAID volume (2 or 3) */
+ u8 reserved3[3];
+ __le32 encrypt_tweak_lower;
+ __le32 encrypt_tweak_upper;
+ struct pqi_sg_descriptor sg_descriptors[PQI_MAX_EMBEDDED_SG_DESCRIPTORS];
+};
+
+#define PQI_DEFAULT_MAX_WRITE_RAID_5_6 (8 * 1024U)
+#define PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_SAS_SATA (~0U)
+#define PQI_DEFAULT_MAX_TRANSFER_ENCRYPTED_NVME (32 * 1024U)
+
+struct pqi_aio_r56_path_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 volume_id; /* ID of the RAID volume */
+ __le32 data_it_nexus; /* IT nexus for the data drive */
+ __le32 p_parity_it_nexus; /* IT nexus for the P parity drive */
+ __le32 q_parity_it_nexus; /* IT nexus for the Q parity drive */
+ __le32 data_length; /* total bytes to read/write */
+ u8 data_direction : 2;
+ u8 partial : 1;
+ u8 mem_type : 1; /* 0 = PCIe, 1 = DDR */
+ u8 fence : 1;
+ u8 encryption_enable : 1;
+ u8 reserved : 2;
+ u8 task_attribute : 3;
+ u8 command_priority : 4;
+ u8 reserved1 : 1;
+ __le16 data_encryption_key_index;
+ u8 cdb[16];
+ __le16 error_index;
+ u8 num_sg_descriptors;
+ u8 cdb_length;
+ u8 xor_multiplier;
+ u8 reserved2[3];
+ __le32 encrypt_tweak_lower;
+ __le32 encrypt_tweak_upper;
+ __le64 row; /* row = logical LBA/blocks per row */
+ u8 reserved3[8];
+ struct pqi_sg_descriptor sg_descriptors[PQI_MAX_EMBEDDED_R56_SG_DESCRIPTORS];
+};
+
+struct pqi_io_response {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 error_index;
+ u8 reserved2[4];
+};
+
+struct pqi_general_management_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ union {
+ struct {
+ u8 reserved[2];
+ __le32 buffer_length;
+ struct pqi_sg_descriptor sg_descriptors[3];
+ } report_event_configuration;
+
+ struct {
+ __le16 global_event_oq_id;
+ __le32 buffer_length;
+ struct pqi_sg_descriptor sg_descriptors[3];
+ } set_event_configuration;
+ } data;
+};
+
+struct pqi_event_descriptor {
+ u8 event_type;
+ u8 reserved;
+ __le16 oq_id;
+};
+
+struct pqi_event_config {
+ u8 reserved[2];
+ u8 num_event_descriptors;
+ u8 reserved1;
+ struct pqi_event_descriptor descriptors[];
+};
+
+#define PQI_MAX_EVENT_DESCRIPTORS 255
+
+#define PQI_EVENT_OFA_MEMORY_ALLOCATION 0x0
+#define PQI_EVENT_OFA_QUIESCE 0x1
+#define PQI_EVENT_OFA_CANCELED 0x2
+
+struct pqi_event_response {
+ struct pqi_iu_header header;
+ u8 event_type;
+ u8 reserved2 : 7;
+ u8 request_acknowledge : 1;
+ __le16 event_id;
+ __le32 additional_event_id;
+ union {
+ struct {
+ __le32 bytes_requested;
+ u8 reserved[12];
+ } ofa_memory_allocation;
+
+ struct {
+ __le16 reason; /* reason for cancellation */
+ u8 reserved[14];
+ } ofa_cancelled;
+ } data;
+};
+
+struct pqi_event_acknowledge_request {
+ struct pqi_iu_header header;
+ u8 event_type;
+ u8 reserved2;
+ __le16 event_id;
+ __le32 additional_event_id;
+};
+
+struct pqi_task_management_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 nexus_id;
+ u8 reserved;
+ u8 ml_device_lun_number;
+ __le16 timeout;
+ u8 lun_number[8];
+ __le16 protocol_specific;
+ __le16 outbound_queue_id_to_manage;
+ __le16 request_id_to_manage;
+ u8 task_management_function;
+ u8 reserved2 : 7;
+ u8 fence : 1;
+};
+
+#define SOP_TASK_MANAGEMENT_LUN_RESET 0x8
+
+struct pqi_task_management_response {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 nexus_id;
+ u8 additional_response_info[3];
+ u8 response_code;
+};
+
+struct pqi_vendor_general_request {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 function_code;
+ union {
+ struct {
+ __le16 first_section;
+ __le16 last_section;
+ u8 reserved[48];
+ } config_table_update;
+
+ struct {
+ __le64 buffer_address;
+ __le32 buffer_length;
+ u8 reserved[40];
+ } ofa_memory_allocation;
+ } data;
+};
+
+struct pqi_vendor_general_response {
+ struct pqi_iu_header header;
+ __le16 request_id;
+ __le16 function_code;
+ __le16 status;
+ u8 reserved[2];
+};
+
+#define PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE 0
+#define PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE 1
+
+#define PQI_OFA_VERSION 1
+#define PQI_OFA_SIGNATURE "OFA_QRM"
+#define PQI_OFA_MAX_SG_DESCRIPTORS 64
+
+struct pqi_ofa_memory {
+ __le64 signature; /* "OFA_QRM" */
+ __le16 version; /* version of this struct (1 = 1st version) */
+ u8 reserved[62];
+ __le32 bytes_allocated; /* total allocated memory in bytes */
+ __le16 num_memory_descriptors;
+ u8 reserved1[2];
+ struct pqi_sg_descriptor sg_descriptor[PQI_OFA_MAX_SG_DESCRIPTORS];
+};
+
+struct pqi_aio_error_info {
+ u8 status;
+ u8 service_response;
+ u8 data_present;
+ u8 reserved;
+ __le32 residual_count;
+ __le16 data_length;
+ __le16 reserved1;
+ u8 data[256];
+};
+
+struct pqi_raid_error_info {
+ u8 data_in_result;
+ u8 data_out_result;
+ u8 reserved[3];
+ u8 status;
+ __le16 status_qualifier;
+ __le16 sense_data_length;
+ __le16 response_data_length;
+ __le32 data_in_transferred;
+ __le32 data_out_transferred;
+ u8 data[256];
+};
+
+#define PQI_REQUEST_IU_TASK_MANAGEMENT 0x13
+#define PQI_REQUEST_IU_RAID_PATH_IO 0x14
+#define PQI_REQUEST_IU_AIO_PATH_IO 0x15
+#define PQI_REQUEST_IU_AIO_PATH_RAID5_IO 0x18
+#define PQI_REQUEST_IU_AIO_PATH_RAID6_IO 0x19
+#define PQI_REQUEST_IU_AIO_PATH_RAID1_IO 0x1A
+#define PQI_REQUEST_IU_GENERAL_ADMIN 0x60
+#define PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG 0x72
+#define PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG 0x73
+#define PQI_REQUEST_IU_VENDOR_GENERAL 0x75
+#define PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT 0xf6
+
+#define PQI_RESPONSE_IU_GENERAL_MANAGEMENT 0x81
+#define PQI_RESPONSE_IU_TASK_MANAGEMENT 0x93
+#define PQI_RESPONSE_IU_GENERAL_ADMIN 0xe0
+#define PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS 0xf0
+#define PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS 0xf1
+#define PQI_RESPONSE_IU_RAID_PATH_IO_ERROR 0xf2
+#define PQI_RESPONSE_IU_AIO_PATH_IO_ERROR 0xf3
+#define PQI_RESPONSE_IU_AIO_PATH_DISABLED 0xf4
+#define PQI_RESPONSE_IU_VENDOR_EVENT 0xf5
+#define PQI_RESPONSE_IU_VENDOR_GENERAL 0xf7
+
+#define PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY 0x0
+#define PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ 0x10
+#define PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ 0x11
+#define PQI_GENERAL_ADMIN_FUNCTION_DELETE_IQ 0x12
+#define PQI_GENERAL_ADMIN_FUNCTION_DELETE_OQ 0x13
+#define PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY 0x14
+
+#define PQI_GENERAL_ADMIN_STATUS_SUCCESS 0x0
+
+#define PQI_IQ_PROPERTY_IS_AIO_QUEUE 0x1
+
+#define PQI_GENERAL_ADMIN_IU_LENGTH 0x3c
+#define PQI_PROTOCOL_SOP 0x0
+
+#define PQI_DATA_IN_OUT_GOOD 0x0
+#define PQI_DATA_IN_OUT_UNDERFLOW 0x1
+#define PQI_DATA_IN_OUT_BUFFER_ERROR 0x40
+#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW 0x41
+#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA 0x42
+#define PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE 0x43
+#define PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR 0x60
+#define PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT 0x61
+#define PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED 0x62
+#define PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED 0x63
+#define PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED 0x64
+#define PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST 0x65
+#define PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION 0x66
+#define PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED 0x67
+#define PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ 0x6F
+#define PQI_DATA_IN_OUT_ERROR 0xf0
+#define PQI_DATA_IN_OUT_PROTOCOL_ERROR 0xf1
+#define PQI_DATA_IN_OUT_HARDWARE_ERROR 0xf2
+#define PQI_DATA_IN_OUT_UNSOLICITED_ABORT 0xf3
+#define PQI_DATA_IN_OUT_ABORTED 0xf4
+#define PQI_DATA_IN_OUT_TIMEOUT 0xf5
+
+#define CISS_CMD_STATUS_SUCCESS 0x0
+#define CISS_CMD_STATUS_TARGET_STATUS 0x1
+#define CISS_CMD_STATUS_DATA_UNDERRUN 0x2
+#define CISS_CMD_STATUS_DATA_OVERRUN 0x3
+#define CISS_CMD_STATUS_INVALID 0x4
+#define CISS_CMD_STATUS_PROTOCOL_ERROR 0x5
+#define CISS_CMD_STATUS_HARDWARE_ERROR 0x6
+#define CISS_CMD_STATUS_CONNECTION_LOST 0x7
+#define CISS_CMD_STATUS_ABORTED 0x8
+#define CISS_CMD_STATUS_ABORT_FAILED 0x9
+#define CISS_CMD_STATUS_UNSOLICITED_ABORT 0xa
+#define CISS_CMD_STATUS_TIMEOUT 0xb
+#define CISS_CMD_STATUS_UNABORTABLE 0xc
+#define CISS_CMD_STATUS_TMF 0xd
+#define CISS_CMD_STATUS_AIO_DISABLED 0xe
+
+#define PQI_CMD_STATUS_ABORTED CISS_CMD_STATUS_ABORTED
+
+#define PQI_NUM_EVENT_QUEUE_ELEMENTS 32
+#define PQI_EVENT_OQ_ELEMENT_LENGTH sizeof(struct pqi_event_response)
+
+#define PQI_EVENT_TYPE_HOTPLUG 0x1
+#define PQI_EVENT_TYPE_HARDWARE 0x2
+#define PQI_EVENT_TYPE_PHYSICAL_DEVICE 0x4
+#define PQI_EVENT_TYPE_LOGICAL_DEVICE 0x5
+#define PQI_EVENT_TYPE_OFA 0xfb
+#define PQI_EVENT_TYPE_AIO_STATE_CHANGE 0xfd
+#define PQI_EVENT_TYPE_AIO_CONFIG_CHANGE 0xfe
+
+#pragma pack()
+
+#define PQI_ERROR_BUFFER_ELEMENT_LENGTH \
+ sizeof(struct pqi_raid_error_info)
+
+/* these values are based on our implementation */
+#define PQI_ADMIN_IQ_NUM_ELEMENTS 8
+#define PQI_ADMIN_OQ_NUM_ELEMENTS 20
+#define PQI_ADMIN_IQ_ELEMENT_LENGTH 64
+#define PQI_ADMIN_OQ_ELEMENT_LENGTH 64
+
+#define PQI_OPERATIONAL_IQ_ELEMENT_LENGTH 128
+#define PQI_OPERATIONAL_OQ_ELEMENT_LENGTH 16
+
+#define PQI_MIN_MSIX_VECTORS 1
+#define PQI_MAX_MSIX_VECTORS 64
+
+/* these values are defined by the PQI spec */
+#define PQI_MAX_NUM_ELEMENTS_ADMIN_QUEUE 255
+#define PQI_MAX_NUM_ELEMENTS_OPERATIONAL_QUEUE 65535
+
+#define PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT 64
+#define PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT 16
+#define PQI_ADMIN_INDEX_ALIGNMENT 64
+#define PQI_OPERATIONAL_INDEX_ALIGNMENT 4
+
+#define PQI_MIN_OPERATIONAL_QUEUE_ID 1
+#define PQI_MAX_OPERATIONAL_QUEUE_ID 65535
+
+#define PQI_AIO_SERV_RESPONSE_COMPLETE 0
+#define PQI_AIO_SERV_RESPONSE_FAILURE 1
+#define PQI_AIO_SERV_RESPONSE_TMF_COMPLETE 2
+#define PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED 3
+#define PQI_AIO_SERV_RESPONSE_TMF_REJECTED 4
+#define PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN 5
+
+#define PQI_AIO_STATUS_IO_ERROR 0x1
+#define PQI_AIO_STATUS_IO_ABORTED 0x2
+#define PQI_AIO_STATUS_NO_PATH_TO_DEVICE 0x3
+#define PQI_AIO_STATUS_INVALID_DEVICE 0x4
+#define PQI_AIO_STATUS_AIO_PATH_DISABLED 0xe
+#define PQI_AIO_STATUS_UNDERRUN 0x51
+#define PQI_AIO_STATUS_OVERRUN 0x75
+
+typedef u32 pqi_index_t;
+
+/* SOP data direction flags */
+#define SOP_NO_DIRECTION_FLAG 0
+#define SOP_WRITE_FLAG 1 /* host writes data to Data-Out */
+ /* buffer */
+#define SOP_READ_FLAG 2 /* host receives data from Data-In */
+ /* buffer */
+#define SOP_BIDIRECTIONAL 3 /* data is transferred from the */
+ /* Data-Out buffer and data is */
+ /* transferred to the Data-In buffer */
+
+#define SOP_TASK_ATTRIBUTE_SIMPLE 0
+#define SOP_TASK_ATTRIBUTE_HEAD_OF_QUEUE 1
+#define SOP_TASK_ATTRIBUTE_ORDERED 2
+#define SOP_TASK_ATTRIBUTE_ACA 4
+
+#define SOP_TMF_COMPLETE 0x0
+#define SOP_TMF_REJECTED 0x4
+#define SOP_TMF_FUNCTION_SUCCEEDED 0x8
+#define SOP_RC_INCORRECT_LOGICAL_UNIT 0x9
+
+/* additional CDB bytes usage field codes */
+#define SOP_ADDITIONAL_CDB_BYTES_0 0 /* 16-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_4 1 /* 20-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_8 2 /* 24-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_12 3 /* 28-byte CDB */
+#define SOP_ADDITIONAL_CDB_BYTES_16 4 /* 32-byte CDB */
+
+/*
+ * The purpose of this structure is to obtain proper alignment of objects in
+ * an admin queue pair.
+ */
+struct pqi_admin_queues_aligned {
+ __aligned(PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT)
+ u8 iq_element_array[PQI_ADMIN_IQ_ELEMENT_LENGTH]
+ [PQI_ADMIN_IQ_NUM_ELEMENTS];
+ __aligned(PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT)
+ u8 oq_element_array[PQI_ADMIN_OQ_ELEMENT_LENGTH]
+ [PQI_ADMIN_OQ_NUM_ELEMENTS];
+ __aligned(PQI_ADMIN_INDEX_ALIGNMENT) pqi_index_t iq_ci;
+ __aligned(PQI_ADMIN_INDEX_ALIGNMENT) pqi_index_t oq_pi;
+};
+
+struct pqi_admin_queues {
+ void *iq_element_array;
+ void *oq_element_array;
+ pqi_index_t __iomem *iq_ci;
+ pqi_index_t __iomem *oq_pi;
+ dma_addr_t iq_element_array_bus_addr;
+ dma_addr_t oq_element_array_bus_addr;
+ dma_addr_t iq_ci_bus_addr;
+ dma_addr_t oq_pi_bus_addr;
+ __le32 __iomem *iq_pi;
+ pqi_index_t iq_pi_copy;
+ __le32 __iomem *oq_ci;
+ pqi_index_t oq_ci_copy;
+ struct task_struct *task;
+ u16 int_msg_num;
+};
+
+struct pqi_queue_group {
+ struct pqi_ctrl_info *ctrl_info; /* backpointer */
+ u16 iq_id[2];
+ u16 oq_id;
+ u16 int_msg_num;
+ void *iq_element_array[2];
+ void *oq_element_array;
+ dma_addr_t iq_element_array_bus_addr[2];
+ dma_addr_t oq_element_array_bus_addr;
+ __le32 __iomem *iq_pi[2];
+ pqi_index_t iq_pi_copy[2];
+ pqi_index_t __iomem *iq_ci[2];
+ pqi_index_t __iomem *oq_pi;
+ dma_addr_t iq_ci_bus_addr[2];
+ dma_addr_t oq_pi_bus_addr;
+ __le32 __iomem *oq_ci;
+ pqi_index_t oq_ci_copy;
+ spinlock_t submit_lock[2]; /* protect submission queue */
+ struct list_head request_list[2];
+};
+
+struct pqi_event_queue {
+ u16 oq_id;
+ u16 int_msg_num;
+ void *oq_element_array;
+ pqi_index_t __iomem *oq_pi;
+ dma_addr_t oq_element_array_bus_addr;
+ dma_addr_t oq_pi_bus_addr;
+ __le32 __iomem *oq_ci;
+ pqi_index_t oq_ci_copy;
+};
+
+#define PQI_DEFAULT_QUEUE_GROUP 0
+#define PQI_MAX_QUEUE_GROUPS PQI_MAX_MSIX_VECTORS
+
+struct pqi_encryption_info {
+ u16 data_encryption_key_index;
+ u32 encrypt_tweak_lower;
+ u32 encrypt_tweak_upper;
+};
+
+#pragma pack(1)
+
+#define PQI_CONFIG_TABLE_SIGNATURE "CFGTABLE"
+#define PQI_CONFIG_TABLE_MAX_LENGTH ((u16)~0)
+
+/* configuration table section IDs */
+#define PQI_CONFIG_TABLE_ALL_SECTIONS (-1)
+#define PQI_CONFIG_TABLE_SECTION_GENERAL_INFO 0
+#define PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES 1
+#define PQI_CONFIG_TABLE_SECTION_FIRMWARE_ERRATA 2
+#define PQI_CONFIG_TABLE_SECTION_DEBUG 3
+#define PQI_CONFIG_TABLE_SECTION_HEARTBEAT 4
+#define PQI_CONFIG_TABLE_SECTION_SOFT_RESET 5
+
+struct pqi_config_table {
+ u8 signature[8]; /* "CFGTABLE" */
+ __le32 first_section_offset; /* offset in bytes from the base */
+ /* address of this table to the */
+ /* first section */
+};
+
+struct pqi_config_table_section_header {
+ __le16 section_id; /* as defined by the */
+ /* PQI_CONFIG_TABLE_SECTION_* */
+ /* manifest constants above */
+ __le16 next_section_offset; /* offset in bytes from base */
+ /* address of the table of the */
+ /* next section or 0 if last entry */
+};
+
+struct pqi_config_table_general_info {
+ struct pqi_config_table_section_header header;
+ __le32 section_length; /* size of this section in bytes */
+ /* including the section header */
+ __le32 max_outstanding_requests; /* max. outstanding */
+ /* commands supported by */
+ /* the controller */
+ __le32 max_sg_size; /* max. transfer size of a single */
+ /* command */
+ __le32 max_sg_per_request; /* max. number of scatter-gather */
+ /* entries supported in a single */
+ /* command */
+};
+
+struct pqi_config_table_firmware_features {
+ struct pqi_config_table_section_header header;
+ __le16 num_elements;
+ u8 features_supported[];
+/* u8 features_requested_by_host[]; */
+/* u8 features_enabled[]; */
+/* The 2 fields below are only valid if the MAX_KNOWN_FEATURE bit is set. */
+/* __le16 firmware_max_known_feature; */
+/* __le16 host_max_known_feature; */
+};
+
+#define PQI_FIRMWARE_FEATURE_OFA 0
+#define PQI_FIRMWARE_FEATURE_SMP 1
+#define PQI_FIRMWARE_FEATURE_MAX_KNOWN_FEATURE 2
+#define PQI_FIRMWARE_FEATURE_RAID_0_READ_BYPASS 3
+#define PQI_FIRMWARE_FEATURE_RAID_1_READ_BYPASS 4
+#define PQI_FIRMWARE_FEATURE_RAID_5_READ_BYPASS 5
+#define PQI_FIRMWARE_FEATURE_RAID_6_READ_BYPASS 6
+#define PQI_FIRMWARE_FEATURE_RAID_0_WRITE_BYPASS 7
+#define PQI_FIRMWARE_FEATURE_RAID_1_WRITE_BYPASS 8
+#define PQI_FIRMWARE_FEATURE_RAID_5_WRITE_BYPASS 9
+#define PQI_FIRMWARE_FEATURE_RAID_6_WRITE_BYPASS 10
+#define PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE 11
+#define PQI_FIRMWARE_FEATURE_UNIQUE_SATA_WWN 12
+#define PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT 13
+#define PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT 14
+#define PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME 15
+#define PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN 16
+#define PQI_FIRMWARE_FEATURE_FW_TRIAGE 17
+#define PQI_FIRMWARE_FEATURE_RPL_EXTENDED_FORMAT_4_5 18
+#define PQI_FIRMWARE_FEATURE_MULTI_LUN_DEVICE_SUPPORT 21
+#define PQI_FIRMWARE_FEATURE_MAXIMUM 21
+
+struct pqi_config_table_debug {
+ struct pqi_config_table_section_header header;
+ __le32 scratchpad;
+};
+
+struct pqi_config_table_heartbeat {
+ struct pqi_config_table_section_header header;
+ __le32 heartbeat_counter;
+};
+
+struct pqi_config_table_soft_reset {
+ struct pqi_config_table_section_header header;
+ u8 soft_reset_status;
+};
+
+#define PQI_SOFT_RESET_INITIATE 0x1
+#define PQI_SOFT_RESET_ABORT 0x2
+
+enum pqi_soft_reset_status {
+ RESET_INITIATE_FIRMWARE,
+ RESET_INITIATE_DRIVER,
+ RESET_ABORT,
+ RESET_NORESPONSE,
+ RESET_TIMEDOUT
+};
+
+union pqi_reset_register {
+ struct {
+ u32 reset_type : 3;
+ u32 reserved : 2;
+ u32 reset_action : 3;
+ u32 hold_in_pd1 : 1;
+ u32 reserved2 : 23;
+ } bits;
+ u32 all_bits;
+};
+
+#define PQI_RESET_ACTION_RESET 0x1
+
+#define PQI_RESET_TYPE_NO_RESET 0x0
+#define PQI_RESET_TYPE_SOFT_RESET 0x1
+#define PQI_RESET_TYPE_FIRM_RESET 0x2
+#define PQI_RESET_TYPE_HARD_RESET 0x3
+
+#define PQI_RESET_ACTION_COMPLETED 0x2
+
+#define PQI_RESET_POLL_INTERVAL_MSECS 100
+
+#define PQI_MAX_OUTSTANDING_REQUESTS ((u32)~0)
+#define PQI_MAX_OUTSTANDING_REQUESTS_KDUMP 32
+#define PQI_MAX_TRANSFER_SIZE (1024U * 1024U)
+#define PQI_MAX_TRANSFER_SIZE_KDUMP (512 * 1024U)
+
+#define RAID_MAP_MAX_ENTRIES 1024
+#define RAID_MAP_MAX_DATA_DISKS_PER_ROW 128
+
+#define PQI_PHYSICAL_DEVICE_BUS 0
+#define PQI_RAID_VOLUME_BUS 1
+#define PQI_HBA_BUS 2
+#define PQI_EXTERNAL_RAID_VOLUME_BUS 3
+#define PQI_MAX_BUS PQI_EXTERNAL_RAID_VOLUME_BUS
+#define PQI_VSEP_CISS_BTL 379
+
+struct report_lun_header {
+ __be32 list_length;
+ u8 flags;
+ u8 reserved[3];
+};
+
+/* for flags field of struct report_lun_header */
+#define CISS_REPORT_LOG_FLAG_UNIQUE_LUN_ID (1 << 0)
+#define CISS_REPORT_LOG_FLAG_QUEUE_DEPTH (1 << 5)
+#define CISS_REPORT_LOG_FLAG_DRIVE_TYPE_MIX (1 << 6)
+
+#define CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_2 0x2
+#define CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_4 0x4
+#define CISS_REPORT_PHYS_FLAG_EXTENDED_FORMAT_MASK 0xf
+
+struct report_log_lun {
+ u8 lunid[8];
+ u8 volume_id[16];
+};
+
+struct report_log_lun_list {
+ struct report_lun_header header;
+ struct report_log_lun lun_entries[1];
+};
+
+struct report_phys_lun_8byte_wwid {
+ u8 lunid[8];
+ __be64 wwid;
+ u8 device_type;
+ u8 device_flags;
+ u8 lun_count; /* number of LUNs in a multi-LUN device */
+ u8 redundant_paths;
+ u32 aio_handle;
+};
+
+struct report_phys_lun_16byte_wwid {
+ u8 lunid[8];
+ u8 wwid[16];
+ u8 device_type;
+ u8 device_flags;
+ u8 lun_count; /* number of LUNs in a multi-LUN device */
+ u8 redundant_paths;
+ u32 aio_handle;
+};
+
+/* for device_flags field of struct report_phys_lun_extended_entry */
+#define CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED 0x8
+
+struct report_phys_lun_8byte_wwid_list {
+ struct report_lun_header header;
+ struct report_phys_lun_8byte_wwid lun_entries[1];
+};
+
+struct report_phys_lun_16byte_wwid_list {
+ struct report_lun_header header;
+ struct report_phys_lun_16byte_wwid lun_entries[1];
+};
+
+struct raid_map_disk_data {
+ u32 aio_handle;
+ u8 xor_mult[2];
+ u8 reserved[2];
+};
+
+/* for flags field of RAID map */
+#define RAID_MAP_ENCRYPTION_ENABLED 0x1
+
+struct raid_map {
+ __le32 structure_size; /* size of entire structure in bytes */
+ __le32 volume_blk_size; /* bytes / block in the volume */
+ __le64 volume_blk_cnt; /* logical blocks on the volume */
+ u8 phys_blk_shift; /* shift factor to convert between */
+ /* units of logical blocks and */
+ /* physical disk blocks */
+ u8 parity_rotation_shift; /* shift factor to convert between */
+ /* units of logical stripes and */
+ /* physical stripes */
+ __le16 strip_size; /* blocks used on each disk / stripe */
+ __le64 disk_starting_blk; /* first disk block used in volume */
+ __le64 disk_blk_cnt; /* disk blocks used by volume / disk */
+ __le16 data_disks_per_row; /* data disk entries / row in the map */
+ __le16 metadata_disks_per_row; /* mirror/parity disk entries / row */
+ /* in the map */
+ __le16 row_cnt; /* rows in each layout map */
+ __le16 layout_map_count; /* layout maps (1 map per */
+ /* mirror parity group) */
+ __le16 flags;
+ __le16 data_encryption_key_index;
+ u8 reserved[16];
+ struct raid_map_disk_data disk_data[RAID_MAP_MAX_ENTRIES];
+};
+
+#pragma pack()
+
+struct pqi_scsi_dev_raid_map_data {
+ bool is_write;
+ u8 raid_level;
+ u32 map_index;
+ u64 first_block;
+ u64 last_block;
+ u32 data_length;
+ u32 block_cnt;
+ u32 blocks_per_row;
+ u64 first_row;
+ u64 last_row;
+ u32 first_row_offset;
+ u32 last_row_offset;
+ u32 first_column;
+ u32 last_column;
+ u64 r5or6_first_row;
+ u64 r5or6_last_row;
+ u32 r5or6_first_row_offset;
+ u32 r5or6_last_row_offset;
+ u32 r5or6_first_column;
+ u32 r5or6_last_column;
+ u16 data_disks_per_row;
+ u32 total_disks_per_row;
+ u16 layout_map_count;
+ u32 stripesize;
+ u16 strip_size;
+ u32 first_group;
+ u32 last_group;
+ u32 map_row;
+ u32 aio_handle;
+ u64 disk_block;
+ u32 disk_block_cnt;
+ u8 cdb[16];
+ u8 cdb_length;
+
+ /* RAID 1 specific */
+#define NUM_RAID1_MAP_ENTRIES 3
+ u32 num_it_nexus_entries;
+ u32 it_nexus[NUM_RAID1_MAP_ENTRIES];
+
+ /* RAID 5 / RAID 6 specific */
+ u32 p_parity_it_nexus; /* aio_handle */
+ u32 q_parity_it_nexus; /* aio_handle */
+ u8 xor_mult;
+ u64 row;
+ u64 stripe_lba;
+ u32 p_index;
+ u32 q_index;
+};
+
+#define RAID_CTLR_LUNID "\0\0\0\0\0\0\0\0"
+
+#define NUM_STREAMS_PER_LUN 8
+
+struct pqi_stream_data {
+ u64 next_lba;
+ u32 last_accessed;
+};
+
+#define PQI_MAX_LUNS_PER_DEVICE 256
+
+struct pqi_scsi_dev {
+ int devtype; /* as reported by INQUIRY command */
+ u8 device_type; /* as reported by */
+ /* BMIC_IDENTIFY_PHYSICAL_DEVICE */
+ /* only valid for devtype = TYPE_DISK */
+ int bus;
+ int target;
+ int lun;
+ u8 scsi3addr[8];
+ u8 wwid[16];
+ u8 volume_id[16];
+ u8 is_physical_device : 1;
+ u8 is_external_raid_device : 1;
+ u8 is_expander_smp_device : 1;
+ u8 target_lun_valid : 1;
+ u8 device_gone : 1;
+ u8 new_device : 1;
+ u8 keep_device : 1;
+ u8 volume_offline : 1;
+ u8 rescan : 1;
+ u8 ignore_device : 1;
+ bool aio_enabled; /* only valid for physical disks */
+ bool in_remove;
+ bool device_offline;
+ u8 vendor[8]; /* bytes 8-15 of inquiry data */
+ u8 model[16]; /* bytes 16-31 of inquiry data */
+ u64 sas_address;
+ u8 raid_level;
+ u16 queue_depth; /* max. queue_depth for this device */
+ u16 advertised_queue_depth;
+ u32 aio_handle;
+ u8 volume_status;
+ u8 active_path_index;
+ u8 path_map;
+ u8 bay;
+ u8 box_index;
+ u8 phys_box_on_bus;
+ u8 phy_connected_dev_type;
+ u8 box[8];
+ u16 phys_connector[8];
+ u8 phy_id;
+ u8 ncq_prio_enable;
+ u8 ncq_prio_support;
+ u8 lun_count;
+ bool raid_bypass_configured; /* RAID bypass configured */
+ bool raid_bypass_enabled; /* RAID bypass enabled */
+ u32 next_bypass_group[RAID_MAP_MAX_DATA_DISKS_PER_ROW];
+ struct raid_map *raid_map; /* RAID bypass map */
+ u32 max_transfer_encrypted;
+
+ struct pqi_sas_port *sas_port;
+ struct scsi_device *sdev;
+
+ struct list_head scsi_device_list_entry;
+ struct list_head new_device_list_entry;
+ struct list_head add_list_entry;
+ struct list_head delete_list_entry;
+
+ struct pqi_stream_data stream_data[NUM_STREAMS_PER_LUN];
+ atomic_t scsi_cmds_outstanding[PQI_MAX_LUNS_PER_DEVICE];
+ atomic_t raid_bypass_cnt;
+};
+
+/* VPD inquiry pages */
+#define CISS_VPD_LV_DEVICE_GEOMETRY 0xc1 /* vendor-specific page */
+#define CISS_VPD_LV_BYPASS_STATUS 0xc2 /* vendor-specific page */
+#define CISS_VPD_LV_STATUS 0xc3 /* vendor-specific page */
+
+#define VPD_PAGE (1 << 8)
+
+#pragma pack(1)
+
+/* structure for CISS_VPD_LV_STATUS */
+struct ciss_vpd_logical_volume_status {
+ u8 peripheral_info;
+ u8 page_code;
+ u8 reserved;
+ u8 page_length;
+ u8 volume_status;
+ u8 reserved2[3];
+ __be32 flags;
+};
+
+#pragma pack()
+
+/* constants for volume_status field of ciss_vpd_logical_volume_status */
+#define CISS_LV_OK 0
+#define CISS_LV_FAILED 1
+#define CISS_LV_NOT_CONFIGURED 2
+#define CISS_LV_DEGRADED 3
+#define CISS_LV_READY_FOR_RECOVERY 4
+#define CISS_LV_UNDERGOING_RECOVERY 5
+#define CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED 6
+#define CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM 7
+#define CISS_LV_HARDWARE_OVERHEATING 8
+#define CISS_LV_HARDWARE_HAS_OVERHEATED 9
+#define CISS_LV_UNDERGOING_EXPANSION 10
+#define CISS_LV_NOT_AVAILABLE 11
+#define CISS_LV_QUEUED_FOR_EXPANSION 12
+#define CISS_LV_DISABLED_SCSI_ID_CONFLICT 13
+#define CISS_LV_EJECTED 14
+#define CISS_LV_UNDERGOING_ERASE 15
+/* state 16 not used */
+#define CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD 17
+#define CISS_LV_UNDERGOING_RPI 18
+#define CISS_LV_PENDING_RPI 19
+#define CISS_LV_ENCRYPTED_NO_KEY 20
+/* state 21 not used */
+#define CISS_LV_UNDERGOING_ENCRYPTION 22
+#define CISS_LV_UNDERGOING_ENCRYPTION_REKEYING 23
+#define CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER 24
+#define CISS_LV_PENDING_ENCRYPTION 25
+#define CISS_LV_PENDING_ENCRYPTION_REKEYING 26
+#define CISS_LV_NOT_SUPPORTED 27
+#define CISS_LV_STATUS_UNAVAILABLE 255
+
+/* constants for flags field of ciss_vpd_logical_volume_status */
+#define CISS_LV_FLAGS_NO_HOST_IO 0x1 /* volume not available for */
+ /* host I/O */
+
+/* for SAS hosts and SAS expanders */
+struct pqi_sas_node {
+ struct device *parent_dev;
+ struct list_head port_list_head;
+};
+
+struct pqi_sas_port {
+ struct list_head port_list_entry;
+ u64 sas_address;
+ struct pqi_scsi_dev *device;
+ struct sas_port *port;
+ int next_phy_index;
+ struct list_head phy_list_head;
+ struct pqi_sas_node *parent_node;
+ struct sas_rphy *rphy;
+};
+
+struct pqi_sas_phy {
+ struct list_head phy_list_entry;
+ struct sas_phy *phy;
+ struct pqi_sas_port *parent_port;
+ bool added_to_port;
+};
+
+struct pqi_io_request {
+ atomic_t refcount;
+ u16 index;
+ void (*io_complete_callback)(struct pqi_io_request *io_request,
+ void *context);
+ void *context;
+ u8 raid_bypass : 1;
+ int status;
+ struct pqi_queue_group *queue_group;
+ struct scsi_cmnd *scmd;
+ void *error_info;
+ struct pqi_sg_descriptor *sg_chain_buffer;
+ dma_addr_t sg_chain_buffer_dma_handle;
+ void *iu;
+ struct list_head request_list_entry;
+};
+
+#define PQI_NUM_SUPPORTED_EVENTS 7
+
+struct pqi_event {
+ bool pending;
+ u8 event_type;
+ u16 event_id;
+ u32 additional_event_id;
+};
+
+#define PQI_RESERVED_IO_SLOTS_LUN_RESET 1
+#define PQI_RESERVED_IO_SLOTS_EVENT_ACK PQI_NUM_SUPPORTED_EVENTS
+#define PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS 3
+#define PQI_RESERVED_IO_SLOTS \
+ (PQI_RESERVED_IO_SLOTS_LUN_RESET + PQI_RESERVED_IO_SLOTS_EVENT_ACK + \
+ PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS)
+
+#define PQI_CTRL_PRODUCT_ID_GEN1 0
+#define PQI_CTRL_PRODUCT_ID_GEN2 7
+#define PQI_CTRL_PRODUCT_REVISION_A 0
+#define PQI_CTRL_PRODUCT_REVISION_B 1
+
+enum pqi_ctrl_removal_state {
+ PQI_CTRL_PRESENT = 0,
+ PQI_CTRL_GRACEFUL_REMOVAL,
+ PQI_CTRL_SURPRISE_REMOVAL
+};
+
+struct pqi_ctrl_info {
+ unsigned int ctrl_id;
+ struct pci_dev *pci_dev;
+ char firmware_version[32];
+ char serial_number[17];
+ char model[17];
+ char vendor[9];
+ u8 product_id;
+ u8 product_revision;
+ void __iomem *iomem_base;
+ struct pqi_ctrl_registers __iomem *registers;
+ struct pqi_device_registers __iomem *pqi_registers;
+ u32 max_sg_entries;
+ u32 config_table_offset;
+ u32 config_table_length;
+ u16 max_inbound_queues;
+ u16 max_elements_per_iq;
+ u16 max_iq_element_length;
+ u16 max_outbound_queues;
+ u16 max_elements_per_oq;
+ u16 max_oq_element_length;
+ u32 max_transfer_size;
+ u32 max_outstanding_requests;
+ u32 max_io_slots;
+ unsigned int scsi_ml_can_queue;
+ unsigned short sg_tablesize;
+ unsigned int max_sectors;
+ u32 error_buffer_length;
+ void *error_buffer;
+ dma_addr_t error_buffer_dma_handle;
+ size_t sg_chain_buffer_length;
+ unsigned int num_queue_groups;
+ u16 max_hw_queue_index;
+ u16 num_elements_per_iq;
+ u16 num_elements_per_oq;
+ u16 max_inbound_iu_length_per_firmware;
+ u16 max_inbound_iu_length;
+ unsigned int max_sg_per_iu;
+ unsigned int max_sg_per_r56_iu;
+ void *admin_queue_memory_base;
+ u32 admin_queue_memory_length;
+ dma_addr_t admin_queue_memory_base_dma_handle;
+ void *queue_memory_base;
+ u32 queue_memory_length;
+ dma_addr_t queue_memory_base_dma_handle;
+ struct pqi_admin_queues admin_queues;
+ struct pqi_queue_group queue_groups[PQI_MAX_QUEUE_GROUPS];
+ struct pqi_event_queue event_queue;
+ enum pqi_irq_mode irq_mode;
+ int max_msix_vectors;
+ int num_msix_vectors_enabled;
+ int num_msix_vectors_initialized;
+ int event_irq;
+ struct Scsi_Host *scsi_host;
+
+ struct mutex scan_mutex;
+ struct mutex lun_reset_mutex;
+ bool controller_online;
+ bool block_requests;
+ bool scan_blocked;
+ u8 logical_volume_rescan_needed : 1;
+ u8 inbound_spanning_supported : 1;
+ u8 outbound_spanning_supported : 1;
+ u8 pqi_mode_enabled : 1;
+ u8 pqi_reset_quiesce_supported : 1;
+ u8 soft_reset_handshake_supported : 1;
+ u8 raid_iu_timeout_supported : 1;
+ u8 tmf_iu_timeout_supported : 1;
+ u8 firmware_triage_supported : 1;
+ u8 rpl_extended_format_4_5_supported : 1;
+ u8 multi_lun_device_supported : 1;
+ u8 enable_r1_writes : 1;
+ u8 enable_r5_writes : 1;
+ u8 enable_r6_writes : 1;
+ u8 lv_drive_type_mix_valid : 1;
+ u8 enable_stream_detection : 1;
+ u8 disable_managed_interrupts : 1;
+ u8 ciss_report_log_flags;
+ u32 max_transfer_encrypted_sas_sata;
+ u32 max_transfer_encrypted_nvme;
+ u32 max_write_raid_5_6;
+ u32 max_write_raid_1_10_2drive;
+ u32 max_write_raid_1_10_3drive;
+
+ struct list_head scsi_device_list;
+ spinlock_t scsi_device_list_lock;
+
+ struct delayed_work rescan_work;
+ struct delayed_work update_time_work;
+
+ struct pqi_sas_node *sas_host;
+ u64 sas_address;
+
+ struct pqi_io_request *io_request_pool;
+ u16 next_io_request_slot;
+
+ struct pqi_event events[PQI_NUM_SUPPORTED_EVENTS];
+ struct work_struct event_work;
+
+ atomic_t num_interrupts;
+ int previous_num_interrupts;
+ u32 previous_heartbeat_count;
+ __le32 __iomem *heartbeat_counter;
+ u8 __iomem *soft_reset_status;
+ struct timer_list heartbeat_timer;
+ struct work_struct ctrl_offline_work;
+
+ struct semaphore sync_request_sem;
+ atomic_t num_busy_threads;
+ atomic_t num_blocked_threads;
+ wait_queue_head_t block_requests_wait;
+
+ struct mutex ofa_mutex;
+ struct pqi_ofa_memory *pqi_ofa_mem_virt_addr;
+ dma_addr_t pqi_ofa_mem_dma_handle;
+ void **pqi_ofa_chunk_virt_addr;
+ struct work_struct ofa_memory_alloc_work;
+ struct work_struct ofa_quiesce_work;
+ u32 ofa_bytes_requested;
+ u16 ofa_cancel_reason;
+ enum pqi_ctrl_removal_state ctrl_removal_state;
+};
+
+enum pqi_ctrl_mode {
+ SIS_MODE = 0,
+ PQI_MODE
+};
+
+/*
+ * assume worst case: SATA queue depth of 31 minus 4 internal firmware commands
+ */
+#define PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH 27
+
+/* CISS commands */
+#define CISS_READ 0xc0
+#define CISS_REPORT_LOG 0xc2 /* Report Logical LUNs */
+#define CISS_REPORT_PHYS 0xc3 /* Report Physical LUNs */
+#define CISS_GET_RAID_MAP 0xc8
+
+/* BMIC commands */
+#define BMIC_IDENTIFY_CONTROLLER 0x11
+#define BMIC_IDENTIFY_PHYSICAL_DEVICE 0x15
+#define BMIC_READ 0x26
+#define BMIC_WRITE 0x27
+#define BMIC_SENSE_FEATURE 0x61
+#define BMIC_SENSE_CONTROLLER_PARAMETERS 0x64
+#define BMIC_SENSE_SUBSYSTEM_INFORMATION 0x66
+#define BMIC_CSMI_PASSTHRU 0x68
+#define BMIC_WRITE_HOST_WELLNESS 0xa5
+#define BMIC_FLUSH_CACHE 0xc2
+#define BMIC_SET_DIAG_OPTIONS 0xf4
+#define BMIC_SENSE_DIAG_OPTIONS 0xf5
+
+#define CSMI_CC_SAS_SMP_PASSTHRU 0x17
+
+#define SA_FLUSH_CACHE 0x1
+
+#define MASKED_DEVICE(lunid) ((lunid)[3] & 0xc0)
+#define CISS_GET_LEVEL_2_BUS(lunid) ((lunid)[7] & 0x3f)
+#define CISS_GET_LEVEL_2_TARGET(lunid) ((lunid)[6])
+#define CISS_GET_DRIVE_NUMBER(lunid) \
+ (((CISS_GET_LEVEL_2_BUS((lunid)) - 1) << 8) + \
+ CISS_GET_LEVEL_2_TARGET((lunid)))
+
+#define LV_GET_DRIVE_TYPE_MIX(lunid) ((lunid)[6])
+
+#define LV_DRIVE_TYPE_MIX_UNKNOWN 0
+#define LV_DRIVE_TYPE_MIX_NO_RESTRICTION 1
+#define LV_DRIVE_TYPE_MIX_SAS_HDD_ONLY 2
+#define LV_DRIVE_TYPE_MIX_SATA_HDD_ONLY 3
+#define LV_DRIVE_TYPE_MIX_SAS_OR_SATA_SSD_ONLY 4
+#define LV_DRIVE_TYPE_MIX_SAS_SSD_ONLY 5
+#define LV_DRIVE_TYPE_MIX_SATA_SSD_ONLY 6
+#define LV_DRIVE_TYPE_MIX_SAS_ONLY 7
+#define LV_DRIVE_TYPE_MIX_SATA_ONLY 8
+#define LV_DRIVE_TYPE_MIX_NVME_ONLY 9
+
+#define NO_TIMEOUT ((unsigned long) -1)
+
+#pragma pack(1)
+
+struct bmic_identify_controller {
+ u8 configured_logical_drive_count;
+ __le32 configuration_signature;
+ u8 firmware_version_short[4];
+ u8 reserved[145];
+ __le16 extended_logical_unit_count;
+ u8 reserved1[34];
+ __le16 firmware_build_number;
+ u8 reserved2[8];
+ u8 vendor_id[8];
+ u8 product_id[16];
+ u8 reserved3[62];
+ __le32 extra_controller_flags;
+ u8 reserved4[2];
+ u8 controller_mode;
+ u8 spare_part_number[32];
+ u8 firmware_version_long[32];
+};
+
+/* constants for extra_controller_flags field of bmic_identify_controller */
+#define BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED 0x20000000
+
+struct bmic_sense_subsystem_info {
+ u8 reserved[44];
+ u8 ctrl_serial_number[16];
+};
+
+/* constants for device_type field */
+#define SA_DEVICE_TYPE_SATA 0x1
+#define SA_DEVICE_TYPE_SAS 0x2
+#define SA_DEVICE_TYPE_EXPANDER_SMP 0x5
+#define SA_DEVICE_TYPE_SES 0x6
+#define SA_DEVICE_TYPE_CONTROLLER 0x7
+#define SA_DEVICE_TYPE_NVME 0x9
+
+struct bmic_identify_physical_device {
+ u8 scsi_bus; /* SCSI Bus number on controller */
+ u8 scsi_id; /* SCSI ID on this bus */
+ __le16 block_size; /* sector size in bytes */
+ __le32 total_blocks; /* number for sectors on drive */
+ __le32 reserved_blocks; /* controller reserved (RIS) */
+ u8 model[40]; /* Physical Drive Model */
+ u8 serial_number[40]; /* Drive Serial Number */
+ u8 firmware_revision[8]; /* drive firmware revision */
+ u8 scsi_inquiry_bits; /* inquiry byte 7 bits */
+ u8 compaq_drive_stamp; /* 0 means drive not stamped */
+ u8 last_failure_reason;
+ u8 flags;
+ u8 more_flags;
+ u8 scsi_lun; /* SCSI LUN for phys drive */
+ u8 yet_more_flags;
+ u8 even_more_flags;
+ __le32 spi_speed_rules;
+ u8 phys_connector[2]; /* connector number on controller */
+ u8 phys_box_on_bus; /* phys enclosure this drive resides */
+ u8 phys_bay_in_box; /* phys drv bay this drive resides */
+ __le32 rpm; /* drive rotational speed in RPM */
+ u8 device_type; /* type of drive */
+ u8 sata_version; /* only valid when device_type = */
+ /* SA_DEVICE_TYPE_SATA */
+ __le64 big_total_block_count;
+ __le64 ris_starting_lba;
+ __le32 ris_size;
+ u8 wwid[20];
+ u8 controller_phy_map[32];
+ __le16 phy_count;
+ u8 phy_connected_dev_type[256];
+ u8 phy_to_drive_bay_num[256];
+ __le16 phy_to_attached_dev_index[256];
+ u8 box_index;
+ u8 reserved;
+ __le16 extra_physical_drive_flags;
+ u8 negotiated_link_rate[256];
+ u8 phy_to_phy_map[256];
+ u8 redundant_path_present_map;
+ u8 redundant_path_failure_map;
+ u8 active_path_number;
+ __le16 alternate_paths_phys_connector[8];
+ u8 alternate_paths_phys_box_on_port[8];
+ u8 multi_lun_device_lun_count;
+ u8 minimum_good_fw_revision[8];
+ u8 unique_inquiry_bytes[20];
+ u8 current_temperature_degrees;
+ u8 temperature_threshold_degrees;
+ u8 max_temperature_degrees;
+ u8 logical_blocks_per_phys_block_exp;
+ __le16 current_queue_depth_limit;
+ u8 switch_name[10];
+ __le16 switch_port;
+ u8 alternate_paths_switch_name[40];
+ u8 alternate_paths_switch_port[8];
+ __le16 power_on_hours;
+ __le16 percent_endurance_used;
+ u8 drive_authentication;
+ u8 smart_carrier_authentication;
+ u8 smart_carrier_app_fw_version;
+ u8 smart_carrier_bootloader_fw_version;
+ u8 sanitize_flags;
+ u8 encryption_key_flags;
+ u8 encryption_key_name[64];
+ __le32 misc_drive_flags;
+ __le16 dek_index;
+ __le16 hba_drive_encryption_flags;
+ __le16 max_overwrite_time;
+ __le16 max_block_erase_time;
+ __le16 max_crypto_erase_time;
+ u8 connector_info[5];
+ u8 connector_name[8][8];
+ u8 page_83_identifier[16];
+ u8 maximum_link_rate[256];
+ u8 negotiated_physical_link_rate[256];
+ u8 box_connector_name[8];
+ u8 padding_to_multiple_of_512[9];
+};
+
+#define BMIC_SENSE_FEATURE_IO_PAGE 0x8
+#define BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE 0x2
+
+struct bmic_sense_feature_buffer_header {
+ u8 page_code;
+ u8 subpage_code;
+ __le16 buffer_length;
+};
+
+struct bmic_sense_feature_page_header {
+ u8 page_code;
+ u8 subpage_code;
+ __le16 page_length;
+};
+
+struct bmic_sense_feature_io_page_aio_subpage {
+ struct bmic_sense_feature_page_header header;
+ u8 firmware_read_support;
+ u8 driver_read_support;
+ u8 firmware_write_support;
+ u8 driver_write_support;
+ __le16 max_transfer_encrypted_sas_sata;
+ __le16 max_transfer_encrypted_nvme;
+ __le16 max_write_raid_5_6;
+ __le16 max_write_raid_1_10_2drive;
+ __le16 max_write_raid_1_10_3drive;
+};
+
+struct bmic_smp_request {
+ u8 frame_type;
+ u8 function;
+ u8 allocated_response_length;
+ u8 request_length;
+ u8 additional_request_bytes[1016];
+};
+
+struct bmic_smp_response {
+ u8 frame_type;
+ u8 function;
+ u8 function_result;
+ u8 response_length;
+ u8 additional_response_bytes[1016];
+};
+
+struct bmic_csmi_ioctl_header {
+ __le32 header_length;
+ u8 signature[8];
+ __le32 timeout;
+ __le32 control_code;
+ __le32 return_code;
+ __le32 length;
+};
+
+struct bmic_csmi_smp_passthru {
+ u8 phy_identifier;
+ u8 port_identifier;
+ u8 connection_rate;
+ u8 reserved;
+ __be64 destination_sas_address;
+ __le32 request_length;
+ struct bmic_smp_request request;
+ u8 connection_status;
+ u8 reserved1[3];
+ __le32 response_length;
+ struct bmic_smp_response response;
+};
+
+struct bmic_csmi_smp_passthru_buffer {
+ struct bmic_csmi_ioctl_header ioctl_header;
+ struct bmic_csmi_smp_passthru parameters;
+};
+
+struct bmic_flush_cache {
+ u8 disable_flag;
+ u8 system_power_action;
+ u8 ndu_flush;
+ u8 shutdown_event;
+ u8 reserved[28];
+};
+
+/* for shutdown_event member of struct bmic_flush_cache */
+enum bmic_flush_cache_shutdown_event {
+ NONE_CACHE_FLUSH_ONLY = 0,
+ SHUTDOWN = 1,
+ HIBERNATE = 2,
+ SUSPEND = 3,
+ RESTART = 4
+};
+
+struct bmic_diag_options {
+ __le32 options;
+};
+
+#pragma pack()
+
+static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost)
+{
+ void *hostdata = shost_priv(shost);
+
+ return *((struct pqi_ctrl_info **)hostdata);
+}
+
+void pqi_sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
+ struct sas_rphy *rphy);
+
+int pqi_add_sas_host(struct Scsi_Host *shost, struct pqi_ctrl_info *ctrl_info);
+void pqi_delete_sas_host(struct pqi_ctrl_info *ctrl_info);
+int pqi_add_sas_device(struct pqi_sas_node *pqi_sas_node,
+ struct pqi_scsi_dev *device);
+void pqi_remove_sas_device(struct pqi_scsi_dev *device);
+struct pqi_scsi_dev *pqi_find_device_by_sas_rphy(
+ struct pqi_ctrl_info *ctrl_info, struct sas_rphy *rphy);
+void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd);
+int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info,
+ struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length,
+ struct pqi_raid_error_info *error_info);
+
+extern struct sas_function_template pqi_sas_transport_functions;
+
+#endif /* _SMARTPQI_H */