RDMA/bnxt_re: Get the toggle bits from CQ completions

Get the toggle bits from CQ completions. For older adapters
these values are 0.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1701946060-13931-5-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/hw/bnxt_re/qplib_fp.c

@@ -330,6 +330,9 @@ static void bnxt_qplib_service_nq(struct tasklet_struct *t)
 			cq = (struct bnxt_qplib_cq *)(unsigned long)q_handle;
 			if (!cq)
 				break;
+			cq->toggle = (le16_to_cpu(nqe->info10_type) &
+					NQ_CN_TOGGLE_MASK) >> NQ_CN_TOGGLE_SFT;
+			cq->dbinfo.toggle = cq->toggle;
 			bnxt_qplib_armen_db(&cq->dbinfo,
 					    DBC_DBC_TYPE_CQ_ARMENA);
 			spin_lock_bh(&cq->compl_lock);
@@ -2124,6 +2127,8 @@ int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
 	cq->dbinfo.xid = cq->id;
 	cq->dbinfo.db = cq->dpi->dbr;
 	cq->dbinfo.priv_db = res->dpi_tbl.priv_db;
+	cq->dbinfo.flags = 0;
+	cq->dbinfo.toggle = 0;
 
 	bnxt_qplib_armen_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMENA);
 
@@ -3018,6 +3023,7 @@ int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
 
 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
 {
+	cq->dbinfo.toggle = cq->toggle;
 	if (arm_type)
 		bnxt_qplib_ring_db(&cq->dbinfo, arm_type);
 	/* Using cq->arm_state variable to track whether to issue cq handler */

drivers/infiniband/hw/bnxt_re/qplib_fp.h

@@ -418,6 +418,7 @@ struct bnxt_qplib_cq {
 	bool				resize_in_progress;
 	struct bnxt_qplib_sg_info	sg_info;
 	u64				cq_handle;
+	u8				toggle;
 
 #define CQ_RESIZE_WAIT_TIME_MS		500
 	unsigned long			flags;

drivers/infiniband/hw/bnxt_re/qplib_res.h

@@ -190,6 +190,7 @@ struct bnxt_qplib_db_info {
 	u32			xid;
 	u32			max_slot;
 	u32                     flags;
+	u8			toggle;
 };
 
 enum bnxt_qplib_db_info_flags_mask {