Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 374 insertions, 0 deletions

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
new file mode 100644
index 000000000..13dfcf9f7
--- /dev/null
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
@@ -0,0 +1,374 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
+
+#ifndef _IONIC_DEV_H_
+#define _IONIC_DEV_H_
+
+#include <linux/atomic.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+
+#include "ionic_if.h"
+#include "ionic_regs.h"
+
+#define IONIC_MAX_TX_DESC		8192
+#define IONIC_MAX_RX_DESC		16384
+#define IONIC_MIN_TXRX_DESC		64
+#define IONIC_DEF_TXRX_DESC		4096
+#define IONIC_RX_FILL_THRESHOLD		16
+#define IONIC_RX_FILL_DIV		8
+#define IONIC_LIFS_MAX			1024
+#define IONIC_WATCHDOG_SECS		5
+#define IONIC_ITR_COAL_USEC_DEFAULT	64
+
+#define IONIC_DEV_CMD_REG_VERSION	1
+#define IONIC_DEV_INFO_REG_COUNT	32
+#define IONIC_DEV_CMD_REG_COUNT		32
+
+#define IONIC_NAPI_DEADLINE		(HZ / 200)	/* 5ms */
+#define IONIC_ADMIN_DOORBELL_DEADLINE	(HZ / 2)	/* 500ms */
+#define IONIC_TX_DOORBELL_DEADLINE	(HZ / 100)	/* 10ms */
+#define IONIC_RX_MIN_DOORBELL_DEADLINE	(HZ / 100)	/* 10ms */
+#define IONIC_RX_MAX_DOORBELL_DEADLINE	(HZ * 5)	/* 5s */
+
+struct ionic_dev_bar {
+	void __iomem *vaddr;
+	phys_addr_t bus_addr;
+	unsigned long len;
+	int res_index;
+};
+
+#ifndef __CHECKER__
+/* Registers */
+static_assert(sizeof(struct ionic_intr) == 32);
+
+static_assert(sizeof(struct ionic_doorbell) == 8);
+static_assert(sizeof(struct ionic_intr_status) == 8);
+static_assert(sizeof(union ionic_dev_regs) == 4096);
+static_assert(sizeof(union ionic_dev_info_regs) == 2048);
+static_assert(sizeof(union ionic_dev_cmd_regs) == 2048);
+static_assert(sizeof(struct ionic_lif_stats) == 1024);
+
+static_assert(sizeof(struct ionic_admin_cmd) == 64);
+static_assert(sizeof(struct ionic_admin_comp) == 16);
+static_assert(sizeof(struct ionic_nop_cmd) == 64);
+static_assert(sizeof(struct ionic_nop_comp) == 16);
+
+/* Device commands */
+static_assert(sizeof(struct ionic_dev_identify_cmd) == 64);
+static_assert(sizeof(struct ionic_dev_identify_comp) == 16);
+static_assert(sizeof(struct ionic_dev_init_cmd) == 64);
+static_assert(sizeof(struct ionic_dev_init_comp) == 16);
+static_assert(sizeof(struct ionic_dev_reset_cmd) == 64);
+static_assert(sizeof(struct ionic_dev_reset_comp) == 16);
+static_assert(sizeof(struct ionic_dev_getattr_cmd) == 64);
+static_assert(sizeof(struct ionic_dev_getattr_comp) == 16);
+static_assert(sizeof(struct ionic_dev_setattr_cmd) == 64);
+static_assert(sizeof(struct ionic_dev_setattr_comp) == 16);
+static_assert(sizeof(struct ionic_lif_setphc_cmd) == 64);
+
+/* Port commands */
+static_assert(sizeof(struct ionic_port_identify_cmd) == 64);
+static_assert(sizeof(struct ionic_port_identify_comp) == 16);
+static_assert(sizeof(struct ionic_port_init_cmd) == 64);
+static_assert(sizeof(struct ionic_port_init_comp) == 16);
+static_assert(sizeof(struct ionic_port_reset_cmd) == 64);
+static_assert(sizeof(struct ionic_port_reset_comp) == 16);
+static_assert(sizeof(struct ionic_port_getattr_cmd) == 64);
+static_assert(sizeof(struct ionic_port_getattr_comp) == 16);
+static_assert(sizeof(struct ionic_port_setattr_cmd) == 64);
+static_assert(sizeof(struct ionic_port_setattr_comp) == 16);
+
+/* LIF commands */
+static_assert(sizeof(struct ionic_lif_init_cmd) == 64);
+static_assert(sizeof(struct ionic_lif_init_comp) == 16);
+static_assert(sizeof(struct ionic_lif_reset_cmd) == 64);
+static_assert(sizeof(ionic_lif_reset_comp) == 16);
+static_assert(sizeof(struct ionic_lif_getattr_cmd) == 64);
+static_assert(sizeof(struct ionic_lif_getattr_comp) == 16);
+static_assert(sizeof(struct ionic_lif_setattr_cmd) == 64);
+static_assert(sizeof(struct ionic_lif_setattr_comp) == 16);
+
+static_assert(sizeof(struct ionic_q_init_cmd) == 64);
+static_assert(sizeof(struct ionic_q_init_comp) == 16);
+static_assert(sizeof(struct ionic_q_control_cmd) == 64);
+static_assert(sizeof(ionic_q_control_comp) == 16);
+static_assert(sizeof(struct ionic_q_identify_cmd) == 64);
+static_assert(sizeof(struct ionic_q_identify_comp) == 16);
+
+static_assert(sizeof(struct ionic_rx_mode_set_cmd) == 64);
+static_assert(sizeof(ionic_rx_mode_set_comp) == 16);
+static_assert(sizeof(struct ionic_rx_filter_add_cmd) == 64);
+static_assert(sizeof(struct ionic_rx_filter_add_comp) == 16);
+static_assert(sizeof(struct ionic_rx_filter_del_cmd) == 64);
+static_assert(sizeof(ionic_rx_filter_del_comp) == 16);
+
+/* RDMA commands */
+static_assert(sizeof(struct ionic_rdma_reset_cmd) == 64);
+static_assert(sizeof(struct ionic_rdma_queue_cmd) == 64);
+
+/* Events */
+static_assert(sizeof(struct ionic_notifyq_cmd) == 4);
+static_assert(sizeof(union ionic_notifyq_comp) == 64);
+static_assert(sizeof(struct ionic_notifyq_event) == 64);
+static_assert(sizeof(struct ionic_link_change_event) == 64);
+static_assert(sizeof(struct ionic_reset_event) == 64);
+static_assert(sizeof(struct ionic_heartbeat_event) == 64);
+static_assert(sizeof(struct ionic_log_event) == 64);
+
+/* I/O */
+static_assert(sizeof(struct ionic_txq_desc) == 16);
+static_assert(sizeof(struct ionic_txq_sg_desc) == 128);
+static_assert(sizeof(struct ionic_txq_comp) == 16);
+
+static_assert(sizeof(struct ionic_rxq_desc) == 16);
+static_assert(sizeof(struct ionic_rxq_sg_desc) == 128);
+static_assert(sizeof(struct ionic_rxq_comp) == 16);
+
+/* SR/IOV */
+static_assert(sizeof(struct ionic_vf_setattr_cmd) == 64);
+static_assert(sizeof(struct ionic_vf_setattr_comp) == 16);
+static_assert(sizeof(struct ionic_vf_getattr_cmd) == 64);
+static_assert(sizeof(struct ionic_vf_getattr_comp) == 16);
+#endif /* __CHECKER__ */
+
+struct ionic_devinfo {
+	u8 asic_type;
+	u8 asic_rev;
+	char fw_version[IONIC_DEVINFO_FWVERS_BUFLEN + 1];
+	char serial_num[IONIC_DEVINFO_SERIAL_BUFLEN + 1];
+};
+
+struct ionic_dev {
+	union ionic_dev_info_regs __iomem *dev_info_regs;
+	union ionic_dev_cmd_regs __iomem *dev_cmd_regs;
+	struct ionic_hwstamp_regs __iomem *hwstamp_regs;
+
+	atomic_long_t last_check_time;
+	unsigned long last_hb_time;
+	u32 last_fw_hb;
+	bool fw_hb_ready;
+	bool fw_status_ready;
+	u8 fw_generation;
+
+	u64 __iomem *db_pages;
+	dma_addr_t phy_db_pages;
+
+	struct ionic_intr __iomem *intr_ctrl;
+	u64 __iomem *intr_status;
+
+	u32 port_info_sz;
+	struct ionic_port_info *port_info;
+	dma_addr_t port_info_pa;
+
+	struct ionic_devinfo dev_info;
+};
+
+struct ionic_cq_info {
+	union {
+		void *cq_desc;
+		struct ionic_admin_comp *admincq;
+		struct ionic_notifyq_event *notifyq;
+	};
+};
+
+struct ionic_queue;
+struct ionic_qcq;
+struct ionic_desc_info;
+
+typedef void (*ionic_desc_cb)(struct ionic_queue *q,
+			      struct ionic_desc_info *desc_info,
+			      struct ionic_cq_info *cq_info, void *cb_arg);
+
+#define IONIC_MAX_BUF_LEN			((u16)-1)
+#define IONIC_PAGE_SIZE				PAGE_SIZE
+#define IONIC_PAGE_SPLIT_SZ			(PAGE_SIZE / 2)
+#define IONIC_PAGE_GFP_MASK			(GFP_ATOMIC | __GFP_NOWARN |\
+						 __GFP_COMP | __GFP_MEMALLOC)
+
+struct ionic_buf_info {
+	struct page *page;
+	dma_addr_t dma_addr;
+	u32 page_offset;
+	u32 len;
+};
+
+#define IONIC_MAX_FRAGS			(1 + IONIC_TX_MAX_SG_ELEMS_V1)
+
+struct ionic_desc_info {
+	union {
+		void *desc;
+		struct ionic_txq_desc *txq_desc;
+		struct ionic_rxq_desc *rxq_desc;
+		struct ionic_admin_cmd *adminq_desc;
+	};
+	union {
+		void *sg_desc;
+		struct ionic_txq_sg_desc *txq_sg_desc;
+		struct ionic_rxq_sg_desc *rxq_sgl_desc;
+	};
+	unsigned int bytes;
+	unsigned int nbufs;
+	struct ionic_buf_info bufs[IONIC_MAX_FRAGS];
+	ionic_desc_cb cb;
+	void *cb_arg;
+};
+
+#define IONIC_QUEUE_NAME_MAX_SZ		16
+
+struct ionic_queue {
+	struct device *dev;
+	struct ionic_lif *lif;
+	struct ionic_desc_info *info;
+	u64 dbval;
+	unsigned long dbell_deadline;
+	unsigned long dbell_jiffies;
+	u16 head_idx;
+	u16 tail_idx;
+	unsigned int index;
+	unsigned int num_descs;
+	unsigned int max_sg_elems;
+	u64 features;
+	u64 drop;
+	struct ionic_dev *idev;
+	unsigned int type;
+	unsigned int hw_index;
+	unsigned int hw_type;
+	union {
+		void *base;
+		struct ionic_txq_desc *txq;
+		struct ionic_rxq_desc *rxq;
+		struct ionic_admin_cmd *adminq;
+	};
+	union {
+		void *sg_base;
+		struct ionic_txq_sg_desc *txq_sgl;
+		struct ionic_rxq_sg_desc *rxq_sgl;
+	};
+	dma_addr_t base_pa;
+	dma_addr_t sg_base_pa;
+	unsigned int desc_size;
+	unsigned int sg_desc_size;
+	unsigned int pid;
+	char name[IONIC_QUEUE_NAME_MAX_SZ];
+} ____cacheline_aligned_in_smp;
+
+#define IONIC_INTR_INDEX_NOT_ASSIGNED	-1
+#define IONIC_INTR_NAME_MAX_SZ		32
+
+struct ionic_intr_info {
+	char name[IONIC_INTR_NAME_MAX_SZ];
+	unsigned int index;
+	unsigned int vector;
+	u64 rearm_count;
+	unsigned int cpu;
+	cpumask_t affinity_mask;
+	u32 dim_coal_hw;
+};
+
+struct ionic_cq {
+	struct ionic_lif *lif;
+	struct ionic_cq_info *info;
+	struct ionic_queue *bound_q;
+	struct ionic_intr_info *bound_intr;
+	u16 tail_idx;
+	bool done_color;
+	unsigned int num_descs;
+	unsigned int desc_size;
+	void *base;
+	dma_addr_t base_pa;
+} ____cacheline_aligned_in_smp;
+
+struct ionic;
+
+static inline void ionic_intr_init(struct ionic_dev *idev,
+				   struct ionic_intr_info *intr,
+				   unsigned long index)
+{
+	ionic_intr_clean(idev->intr_ctrl, index);
+	intr->index = index;
+}
+
+static inline unsigned int ionic_q_space_avail(struct ionic_queue *q)
+{
+	unsigned int avail = q->tail_idx;
+
+	if (q->head_idx >= avail)
+		avail += q->num_descs - q->head_idx - 1;
+	else
+		avail -= q->head_idx + 1;
+
+	return avail;
+}
+
+static inline bool ionic_q_has_space(struct ionic_queue *q, unsigned int want)
+{
+	return ionic_q_space_avail(q) >= want;
+}
+
+void ionic_init_devinfo(struct ionic *ionic);
+int ionic_dev_setup(struct ionic *ionic);
+
+void ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd);
+u8 ionic_dev_cmd_status(struct ionic_dev *idev);
+bool ionic_dev_cmd_done(struct ionic_dev *idev);
+void ionic_dev_cmd_comp(struct ionic_dev *idev, union ionic_dev_cmd_comp *comp);
+
+void ionic_dev_cmd_identify(struct ionic_dev *idev, u8 ver);
+void ionic_dev_cmd_init(struct ionic_dev *idev);
+void ionic_dev_cmd_reset(struct ionic_dev *idev);
+
+void ionic_dev_cmd_port_identify(struct ionic_dev *idev);
+void ionic_dev_cmd_port_init(struct ionic_dev *idev);
+void ionic_dev_cmd_port_reset(struct ionic_dev *idev);
+void ionic_dev_cmd_port_state(struct ionic_dev *idev, u8 state);
+void ionic_dev_cmd_port_speed(struct ionic_dev *idev, u32 speed);
+void ionic_dev_cmd_port_autoneg(struct ionic_dev *idev, u8 an_enable);
+void ionic_dev_cmd_port_fec(struct ionic_dev *idev, u8 fec_type);
+void ionic_dev_cmd_port_pause(struct ionic_dev *idev, u8 pause_type);
+
+int ionic_set_vf_config(struct ionic *ionic, int vf,
+			struct ionic_vf_setattr_cmd *vfc);
+int ionic_dev_cmd_vf_getattr(struct ionic *ionic, int vf, u8 attr,
+			     struct ionic_vf_getattr_comp *comp);
+void ionic_dev_cmd_queue_identify(struct ionic_dev *idev,
+				  u16 lif_type, u8 qtype, u8 qver);
+void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, u8 type, u8 ver);
+void ionic_dev_cmd_lif_init(struct ionic_dev *idev, u16 lif_index,
+			    dma_addr_t addr);
+void ionic_dev_cmd_lif_reset(struct ionic_dev *idev, u16 lif_index);
+void ionic_dev_cmd_adminq_init(struct ionic_dev *idev, struct ionic_qcq *qcq,
+			       u16 lif_index, u16 intr_index);
+
+int ionic_db_page_num(struct ionic_lif *lif, int pid);
+
+int ionic_cq_init(struct ionic_lif *lif, struct ionic_cq *cq,
+		  struct ionic_intr_info *intr,
+		  unsigned int num_descs, size_t desc_size);
+void ionic_cq_map(struct ionic_cq *cq, void *base, dma_addr_t base_pa);
+void ionic_cq_bind(struct ionic_cq *cq, struct ionic_queue *q);
+typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, struct ionic_cq_info *cq_info);
+typedef void (*ionic_cq_done_cb)(void *done_arg);
+unsigned int ionic_cq_service(struct ionic_cq *cq, unsigned int work_to_do,
+			      ionic_cq_cb cb, ionic_cq_done_cb done_cb,
+			      void *done_arg);
+
+int ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev,
+		 struct ionic_queue *q, unsigned int index, const char *name,
+		 unsigned int num_descs, size_t desc_size,
+		 size_t sg_desc_size, unsigned int pid);
+void ionic_q_map(struct ionic_queue *q, void *base, dma_addr_t base_pa);
+void ionic_q_sg_map(struct ionic_queue *q, void *base, dma_addr_t base_pa);
+void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, ionic_desc_cb cb,
+		  void *cb_arg);
+void ionic_q_rewind(struct ionic_queue *q, struct ionic_desc_info *start);
+void ionic_q_service(struct ionic_queue *q, struct ionic_cq_info *cq_info,
+		     unsigned int stop_index);
+int ionic_heartbeat_check(struct ionic *ionic);
+bool ionic_is_fw_running(struct ionic_dev *idev);
+
+bool ionic_adminq_poke_doorbell(struct ionic_queue *q);
+bool ionic_txq_poke_doorbell(struct ionic_queue *q);
+bool ionic_rxq_poke_doorbell(struct ionic_queue *q);
+
+#endif /* _IONIC_DEV_H_ */