diff mbox series

[for-next,4/6] RDMA/bnxt_re: Get the toggle bits from CQ completions

Message ID 1701946060-13931-5-git-send-email-selvin.xavier@broadcom.com (mailing list archive)
State Accepted
Headers show
Series RDMA/bnxt_re: Initial support for GenP7 adapters | expand

Commit Message

Selvin Xavier Dec. 7, 2023, 10:47 a.m. UTC 
Get the toggle bits from CQ completions. For older adapters
these values are 0.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/qplib_fp.c  | 6 ++++++
 drivers/infiniband/hw/bnxt_re/qplib_fp.h  | 1 +
 drivers/infiniband/hw/bnxt_re/qplib_res.h | 1 +
 3 files changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index 1b7e950..177c6c1 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/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 */
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index 23c27cb..8a6bea20 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/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;
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h
index 397846b..7e6d907 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.h
+++ b/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 {