1 files changed, 257 insertions, 97 deletions

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index 72352ca80ace..1b414a73b46d 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -39,12 +39,60 @@
 #ifndef __BNXT_QPLIB_FP_H__
 #define __BNXT_QPLIB_FP_H__
 
+#include <rdma/bnxt_re-abi.h>
+
+/* Few helper structures temporarily defined here
+ * should get rid of these when roce_hsi.h is updated
+ * in original code base
+ */
+struct sq_ud_ext_hdr {
+	__le32 dst_qp;
+	__le32 avid;
+	__le64 rsvd;
+};
+
+struct sq_raw_ext_hdr {
+	__le32 cfa_meta;
+	__le32 rsvd0;
+	__le64 rsvd1;
+};
+
+struct sq_rdma_ext_hdr {
+	__le64 remote_va;
+	__le32 remote_key;
+	__le32 rsvd;
+};
+
+struct sq_atomic_ext_hdr {
+	__le64 swap_data;
+	__le64 cmp_data;
+};
+
+struct sq_fr_pmr_ext_hdr {
+	__le64 pblptr;
+	__le64 va;
+};
+
+struct sq_bind_ext_hdr {
+	__le64 va;
+	__le32 length_lo;
+	__le32 length_hi;
+};
+
+struct rq_ext_hdr {
+	__le64 rsvd1;
+	__le64 rsvd2;
+};
+
+/* Helper structures end */
+
 struct bnxt_qplib_srq {
 	struct bnxt_qplib_pd		*pd;
 	struct bnxt_qplib_dpi		*dpi;
-	void __iomem			*dbr_base;
+	struct bnxt_qplib_db_info	dbinfo;
 	u64				srq_handle;
 	u32				id;
+	u16				wqe_size;
 	u32				max_wqe;
 	u32				max_sge;
 	u32				threshold;
@@ -52,12 +100,12 @@ struct bnxt_qplib_srq {
 	struct bnxt_qplib_cq		*cq;
 	struct bnxt_qplib_hwq		hwq;
 	struct bnxt_qplib_swq		*swq;
-	struct scatterlist		*sglist;
 	int				start_idx;
 	int				last_idx;
-	u32				nmap;
+	struct bnxt_qplib_sg_info	sg_info;
 	u16				eventq_hw_ring_id;
 	spinlock_t			lock; /* protect SRQE link list */
+	u8				toggle;
 };
 
 struct bnxt_qplib_sge {
@@ -66,38 +114,6 @@ struct bnxt_qplib_sge {
 	u32				size;
 };
 
-#define BNXT_QPLIB_MAX_SQE_ENTRY_SIZE	sizeof(struct sq_send)
-
-#define SQE_CNT_PER_PG		(PAGE_SIZE / BNXT_QPLIB_MAX_SQE_ENTRY_SIZE)
-#define SQE_MAX_IDX_PER_PG	(SQE_CNT_PER_PG - 1)
-
-static inline u32 get_sqe_pg(u32 val)
-{
-	return ((val & ~SQE_MAX_IDX_PER_PG) / SQE_CNT_PER_PG);
-}
-
-static inline u32 get_sqe_idx(u32 val)
-{
-	return (val & SQE_MAX_IDX_PER_PG);
-}
-
-#define BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE	sizeof(struct sq_psn_search)
-
-#define PSNE_CNT_PER_PG		(PAGE_SIZE / BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE)
-#define PSNE_MAX_IDX_PER_PG	(PSNE_CNT_PER_PG - 1)
-
-static inline u32 get_psne_pg(u32 val)
-{
-	return ((val & ~PSNE_MAX_IDX_PER_PG) / PSNE_CNT_PER_PG);
-}
-
-static inline u32 get_psne_idx(u32 val)
-{
-	return (val & PSNE_MAX_IDX_PER_PG);
-}
-
-#define BNXT_QPLIB_QP_MAX_SGL	6
-
 struct bnxt_qplib_swq {
 	u64				wr_id;
 	int				next_idx;
@@ -105,7 +121,10 @@ struct bnxt_qplib_swq {
 	u8				flags;
 	u32				start_psn;
 	u32				next_psn;
+	u32				slot_idx;
+	u8				slots;
 	struct sq_psn_search		*psn_search;
+	struct sq_psn_search_ext	*psn_ext;
 };
 
 struct bnxt_qplib_swqe {
@@ -134,7 +153,7 @@ struct bnxt_qplib_swqe {
 #define BNXT_QPLIB_SWQE_FLAGS_UC_FENCE			BIT(2)
 #define BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT		BIT(3)
 #define BNXT_QPLIB_SWQE_FLAGS_INLINE			BIT(4)
-	struct bnxt_qplib_sge		sg_list[BNXT_QPLIB_QP_MAX_SGL];
+	struct bnxt_qplib_sge		sg_list[BNXT_VAR_MAX_SGE];
 	int				num_sge;
 	/* Max inline data is 96 bytes */
 	u32				inline_len;
@@ -145,12 +164,12 @@ struct bnxt_qplib_swqe {
 		/* Send, with imm, inval key */
 		struct {
 			union {
-				__be32	imm_data;
+				u32	imm_data;
 				u32	inv_key;
 			};
 			u32		q_key;
 			u32		dst_qp;
-			u16		avid;
+			u32		avid;
 		} send;
 
 		/* Send Raw Ethernet and QP1 */
@@ -163,7 +182,7 @@ struct bnxt_qplib_swqe {
 		/* RDMA write, with imm, read */
 		struct {
 			union {
-				__be32	imm_data;
+				u32	imm_data;
 				u32	inv_key;
 			};
 			u64		remote_va;
@@ -226,19 +245,14 @@ struct bnxt_qplib_swqe {
 	};
 };
 
-#define BNXT_QPLIB_MAX_RQE_ENTRY_SIZE	sizeof(struct rq_wqe)
-
-#define RQE_CNT_PER_PG		(PAGE_SIZE / BNXT_QPLIB_MAX_RQE_ENTRY_SIZE)
-#define RQE_MAX_IDX_PER_PG	(RQE_CNT_PER_PG - 1)
-#define RQE_PG(x)		(((x) & ~RQE_MAX_IDX_PER_PG) / RQE_CNT_PER_PG)
-#define RQE_IDX(x)		((x) & RQE_MAX_IDX_PER_PG)
-
 struct bnxt_qplib_q {
 	struct bnxt_qplib_hwq		hwq;
 	struct bnxt_qplib_swq		*swq;
-	struct scatterlist		*sglist;
-	u32				nmap;
+	struct bnxt_qplib_db_info	dbinfo;
+	struct bnxt_qplib_sg_info	sg_info;
 	u32				max_wqe;
+	u32				max_sw_wqe;
+	u16				wqe_size;
 	u16				q_full_delta;
 	u16				max_sge;
 	u32				psn;
@@ -249,19 +263,23 @@ struct bnxt_qplib_q {
 	u32				phantom_cqe_cnt;
 	u32				next_cq_cons;
 	bool				flushed;
+	u32				swq_start;
+	u32				swq_last;
 };
 
 struct bnxt_qplib_qp {
 	struct bnxt_qplib_pd		*pd;
 	struct bnxt_qplib_dpi		*dpi;
+	struct bnxt_qplib_chip_ctx	*cctx;
 	u64				qp_handle;
-#define        BNXT_QPLIB_QP_ID_INVALID        0xFFFFFFFF
+#define BNXT_QPLIB_QP_ID_INVALID        0xFFFFFFFF
 	u32				id;
 	u8				type;
 	u8				sig_type;
-	u32				modify_flags;
+	u8				wqe_mode;
 	u8				state;
 	u8				cur_qp_state;
+	u64				modify_flags;
 	u32				max_inline_data;
 	u32				mtu;
 	u8				path_mtu;
@@ -280,6 +298,8 @@ struct bnxt_qplib_qp {
 	u32				dest_qpn;
 	u8				smac[6];
 	u16				vlan_id;
+	u16				port_id;
+	u16				udp_sport;
 	u8				nw_type;
 	struct bnxt_qplib_ah		ah;
 
@@ -321,8 +341,16 @@ struct bnxt_qplib_qp {
 	dma_addr_t			rq_hdr_buf_map;
 	struct list_head		sq_flush;
 	struct list_head		rq_flush;
+	u32				msn;
+	u32				msn_tbl_sz;
+	bool				is_host_msn_tbl;
+	u8				tos_dscp;
+	u32				ugid_index;
 };
 
+#define BNXT_RE_MAX_MSG_SIZE	0x80000000
+#define BNXT_RE_INVAL_MSG_SIZE	0xFFFFFFFF
+
 #define BNXT_QPLIB_MAX_CQE_ENTRY_SIZE	sizeof(struct cq_base)
 
 #define CQE_CNT_PER_PG		(PAGE_SIZE / BNXT_QPLIB_MAX_CQE_ENTRY_SIZE)
@@ -331,25 +359,65 @@ struct bnxt_qplib_qp {
 #define CQE_IDX(x)		((x) & CQE_MAX_IDX_PER_PG)
 
 #define ROCE_CQE_CMP_V			0
-#define CQE_CMP_VALID(hdr, raw_cons, cp_bit)			\
+#define CQE_CMP_VALID(hdr, pass)			\
 	(!!((hdr)->cqe_type_toggle & CQ_BASE_TOGGLE) ==		\
-	   !((raw_cons) & (cp_bit)))
+	   !((pass) & BNXT_QPLIB_FLAG_EPOCH_CONS_MASK))
 
-static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *qplib_q)
+static inline u32 __bnxt_qplib_get_avail(struct bnxt_qplib_hwq *hwq)
 {
-	return HWQ_CMP((qplib_q->hwq.prod + qplib_q->q_full_delta),
-		       &qplib_q->hwq) == HWQ_CMP(qplib_q->hwq.cons,
-						 &qplib_q->hwq);
+	int cons, prod, avail;
+
+	cons = hwq->cons;
+	prod = hwq->prod;
+	avail = cons - prod;
+	if (cons <= prod)
+		avail += hwq->depth;
+	return avail;
 }
 
+static inline bool bnxt_qplib_queue_full(struct bnxt_qplib_q *que,
+					 u8 slots)
+{
+	struct bnxt_qplib_hwq *hwq;
+	int avail;
+
+	hwq = &que->hwq;
+	/* False full is possible, retrying post-send makes sense */
+	avail = hwq->cons - hwq->prod;
+	if (hwq->cons <= hwq->prod)
+		avail += hwq->depth;
+	return avail <= slots;
+}
+
+/* CQ coalescing parameters */
+struct bnxt_qplib_cq_coal_param {
+	u16 buf_maxtime;
+	u8 normal_maxbuf;
+	u8 during_maxbuf;
+	u8 en_ring_idle_mode;
+	u8 enable;
+};
+
+#define BNXT_QPLIB_CQ_COAL_DEF_BUF_MAXTIME		0x1
+#define BNXT_QPLIB_CQ_COAL_DEF_NORMAL_MAXBUF_P7		0x8
+#define BNXT_QPLIB_CQ_COAL_DEF_DURING_MAXBUF_P7		0x8
+#define BNXT_QPLIB_CQ_COAL_DEF_NORMAL_MAXBUF_P5		0x1
+#define BNXT_QPLIB_CQ_COAL_DEF_DURING_MAXBUF_P5		0x1
+#define BNXT_QPLIB_CQ_COAL_DEF_EN_RING_IDLE_MODE	0x1
+#define BNXT_QPLIB_CQ_COAL_MAX_BUF_MAXTIME		0x1bf
+#define BNXT_QPLIB_CQ_COAL_MAX_NORMAL_MAXBUF		0x1f
+#define BNXT_QPLIB_CQ_COAL_MAX_DURING_MAXBUF		0x1f
+#define BNXT_QPLIB_CQ_COAL_MAX_EN_RING_IDLE_MODE	0x1
+
 struct bnxt_qplib_cqe {
 	u8				status;
 	u8				type;
 	u8				opcode;
 	u32				length;
+	u16				cfa_meta;
 	u64				wr_id;
 	union {
-		__be32			immdata;
+		u32			immdata;
 		u32			invrkey;
 	};
 	u64				qp_handle;
@@ -369,18 +437,19 @@ struct bnxt_qplib_cqe {
 #define BNXT_QPLIB_QUEUE_START_PERIOD		0x01
 struct bnxt_qplib_cq {
 	struct bnxt_qplib_dpi		*dpi;
-	void __iomem			*dbr_base;
+	struct bnxt_qplib_db_info	dbinfo;
 	u32				max_wqe;
 	u32				id;
 	u16				count;
 	u16				period;
 	struct bnxt_qplib_hwq		hwq;
+	struct bnxt_qplib_hwq		resize_hwq;
 	u32				cnq_hw_ring_id;
 	struct bnxt_qplib_nq		*nq;
 	bool				resize_in_progress;
-	struct scatterlist		*sghead;
-	u32				nmap;
+	struct bnxt_qplib_sg_info	sg_info;
 	u64				cq_handle;
+	u8				toggle;
 
 #define CQ_RESIZE_WAIT_TIME_MS		500
 	unsigned long			flags;
@@ -401,6 +470,8 @@ struct bnxt_qplib_cq {
  * of the same QP while manipulating the flush list.
  */
 	spinlock_t			flush_lock; /* QP flush management */
+	u16				cnq_events;
+	struct bnxt_qplib_cq_coal_param	*coalescing;
 };
 
 #define BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE	sizeof(struct xrrq_irrq)
@@ -417,9 +488,9 @@ struct bnxt_qplib_cq {
 #define NQE_PG(x)		(((x) & ~NQE_MAX_IDX_PER_PG) / NQE_CNT_PER_PG)
 #define NQE_IDX(x)		((x) & NQE_MAX_IDX_PER_PG)
 
-#define NQE_CMP_VALID(hdr, raw_cons, cp_bit)			\
+#define NQE_CMP_VALID(hdr, pass)			\
 	(!!(le32_to_cpu((hdr)->info63_v[0]) & NQ_BASE_V) ==	\
-	   !((raw_cons) & (cp_bit)))
+	   !((pass) & BNXT_QPLIB_FLAG_EPOCH_CONS_MASK))
 
 #define BNXT_QPLIB_NQE_MAX_CNT		(128 * 1024)
 
@@ -432,33 +503,34 @@ struct bnxt_qplib_cq {
 #define NQ_DB_CP_FLAGS			(NQ_DB_KEY_CP    |	\
 					 NQ_DB_IDX_VALID |	\
 					 NQ_DB_IRQ_DIS)
-#define NQ_DB_REARM(db, raw_cons, cp_bit)			\
-	writel(NQ_DB_CP_FLAGS_REARM | ((raw_cons) & ((cp_bit) - 1)), db)
-#define NQ_DB(db, raw_cons, cp_bit)				\
-	writel(NQ_DB_CP_FLAGS | ((raw_cons) & ((cp_bit) - 1)), db)
+
+struct bnxt_qplib_nq_db {
+	struct bnxt_qplib_reg_desc	reg;
+	struct bnxt_qplib_db_info	dbinfo;
+};
+
+typedef int (*cqn_handler_t)(struct bnxt_qplib_nq *nq,
+		struct bnxt_qplib_cq *cq);
+typedef int (*srqn_handler_t)(struct bnxt_qplib_nq *nq,
+		struct bnxt_qplib_srq *srq, u8 event);
 
 struct bnxt_qplib_nq {
-	struct pci_dev		*pdev;
-
-	int			vector;
-	cpumask_t		mask;
-	int			budget;
-	bool			requested;
-	struct tasklet_struct	worker;
-	struct bnxt_qplib_hwq	hwq;
-
-	u16			bar_reg;
-	u16			bar_reg_off;
-	u16			ring_id;
-	void __iomem		*bar_reg_iomem;
-
-	int			(*cqn_handler)(struct bnxt_qplib_nq *nq,
-					       struct bnxt_qplib_cq *cq);
-	int			(*srqn_handler)(struct bnxt_qplib_nq *nq,
-						struct bnxt_qplib_srq *srq,
-						u8 event);
-	struct workqueue_struct	*cqn_wq;
-	char			name[32];
+	struct pci_dev			*pdev;
+	struct bnxt_qplib_res		*res;
+	char				*name;
+	struct bnxt_qplib_hwq		hwq;
+	struct bnxt_qplib_nq_db		nq_db;
+	u16				ring_id;
+	int				msix_vec;
+	cpumask_t			mask;
+	struct tasklet_struct		nq_tasklet;
+	bool				requested;
+	int				budget;
+	u32				load;
+
+	cqn_handler_t			cqn_handler;
+	srqn_handler_t			srqn_handler;
+	struct workqueue_struct		*cqn_wq;
 };
 
 struct bnxt_qplib_nq_work {
@@ -473,19 +545,14 @@ int bnxt_qplib_nq_start_irq(struct bnxt_qplib_nq *nq, int nq_indx,
 			    int msix_vector, bool need_init);
 int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq,
 			 int nq_idx, int msix_vector, int bar_reg_offset,
-			 int (*cqn_handler)(struct bnxt_qplib_nq *nq,
-					    struct bnxt_qplib_cq *cq),
-			 int (*srqn_handler)(struct bnxt_qplib_nq *nq,
-					     struct bnxt_qplib_srq *srq,
-					     u8 event));
+			 cqn_handler_t cqn_handler,
+			 srqn_handler_t srq_handler);
 int bnxt_qplib_create_srq(struct bnxt_qplib_res *res,
 			  struct bnxt_qplib_srq *srq);
-int bnxt_qplib_modify_srq(struct bnxt_qplib_res *res,
-			  struct bnxt_qplib_srq *srq);
 int bnxt_qplib_query_srq(struct bnxt_qplib_res *res,
 			 struct bnxt_qplib_srq *srq);
-int bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res,
-			   struct bnxt_qplib_srq *srq);
+void bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res,
+			    struct bnxt_qplib_srq *srq);
 int bnxt_qplib_post_srq_recv(struct bnxt_qplib_srq *srq,
 			     struct bnxt_qplib_swqe *wqe);
 int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp);
@@ -510,13 +577,17 @@ void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp);
 int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
 			 struct bnxt_qplib_swqe *wqe);
 int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
+int bnxt_qplib_resize_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq,
+			 int new_cqes);
+void bnxt_qplib_resize_cq_complete(struct bnxt_qplib_res *res,
+				   struct bnxt_qplib_cq *cq);
 int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
 int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
 		       int num, struct bnxt_qplib_qp **qp);
 bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq);
 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type);
 void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq);
-int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq);
+int bnxt_qplib_alloc_nq(struct bnxt_qplib_res *res, struct bnxt_qplib_nq *nq);
 void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp);
 void bnxt_qplib_acquire_cq_locks(struct bnxt_qplib_qp *qp,
 				 unsigned long *flags);
@@ -526,4 +597,93 @@ int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
 				  struct bnxt_qplib_cqe *cqe,
 				  int num_cqes);
 void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp);
+void bnxt_re_synchronize_nq(struct bnxt_qplib_nq *nq);
+
+static inline void *bnxt_qplib_get_swqe(struct bnxt_qplib_q *que, u32 *swq_idx)
+{
+	u32 idx;
+
+	idx = que->swq_start;
+	if (swq_idx)
+		*swq_idx = idx;
+	return &que->swq[idx];
+}
+
+static inline void bnxt_qplib_swq_mod_start(struct bnxt_qplib_q *que, u32 idx)
+{
+	que->swq_start = que->swq[idx].next_idx;
+}
+
+static inline u32 bnxt_qplib_get_depth(struct bnxt_qplib_q *que, u8 wqe_mode, bool is_sq)
+{
+	u32 slots;
+
+	/* Queue depth is the number of slots. */
+	slots = (que->wqe_size * que->max_wqe) / sizeof(struct sq_sge);
+	/* For variable WQE mode, need to align the slots to 256 */
+	if (wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE && is_sq)
+		slots = ALIGN(slots, BNXT_VAR_MAX_SLOT_ALIGN);
+	return slots;
+}
+
+static inline u32 bnxt_qplib_set_sq_size(struct bnxt_qplib_q *que, u8 wqe_mode)
+{
+	return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
+		que->max_wqe : bnxt_qplib_get_depth(que, wqe_mode, true);
+}
+
+static inline u32 bnxt_qplib_set_sq_max_slot(u8 wqe_mode)
+{
+	return (wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
+		sizeof(struct sq_send) / sizeof(struct sq_sge) : 1;
+}
+
+static inline u32 bnxt_qplib_set_rq_max_slot(u32 wqe_size)
+{
+	return (wqe_size / sizeof(struct sq_sge));
+}
+
+static inline u16 __xlate_qfd(u16 delta, u16 wqe_bytes)
+{
+	/* For Cu/Wh delta = 128, stride = 16, wqe_bytes = 128
+	 * For Gen-p5 B/C mode delta = 0, stride = 16, wqe_bytes = 128.
+	 * For Gen-p5 delta = 0, stride = 16, 32 <= wqe_bytes <= 512.
+	 * when 8916 is disabled.
+	 */
+	return (delta * wqe_bytes) / sizeof(struct sq_sge);
+}
+
+static inline u16 bnxt_qplib_calc_ilsize(struct bnxt_qplib_swqe *wqe, u16 max)
+{
+	u16 size = 0;
+	int indx;
+
+	for (indx = 0; indx < wqe->num_sge; indx++)
+		size += wqe->sg_list[indx].size;
+	if (size > max)
+		size = max;
+
+	return size;
+}
+
+/* MSN table update inlin */
+static inline __le64 bnxt_re_update_msn_tbl(u32 st_idx, u32 npsn, u32 start_psn)
+{
+	return cpu_to_le64((((u64)(st_idx) << SQ_MSN_SEARCH_START_IDX_SFT) &
+		SQ_MSN_SEARCH_START_IDX_MASK) |
+		(((u64)(npsn) << SQ_MSN_SEARCH_NEXT_PSN_SFT) &
+		SQ_MSN_SEARCH_NEXT_PSN_MASK) |
+		(((start_psn) << SQ_MSN_SEARCH_START_PSN_SFT) &
+		SQ_MSN_SEARCH_START_PSN_MASK));
+}
+
+static inline bool __is_var_wqe(struct bnxt_qplib_qp *qp)
+{
+	return (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE);
+}
+
+static inline bool __is_err_cqe_for_var_wqe(struct bnxt_qplib_qp *qp, u8 status)
+{
+	return (status != CQ_REQ_STATUS_OK) && __is_var_wqe(qp);
+}
 #endif /* __BNXT_QPLIB_FP_H__ */