diff mbox series

[V2,INTERNAL,1/4] bnxt_re/lib: Read wqe mode from the driver

Message ID 20210517133532.774998-2-devesh.sharma@broadcom.com (mailing list archive)
State Superseded
Headers show
Series Broadcom's user library update | expand

Commit Message

Devesh Sharma May 17, 2021, 1:35 p.m. UTC 
During bnxt_re device context creation, read the
wqe mode and store it in context structure and
in the QP context structure. wqe mode would be
required to change between fixed size wqe and
non-fixed sized wqe modes of SQ/RQ in gen-p5
or newer devices.

Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
---
 kernel-headers/rdma/bnxt_re-abi.h | 5 ++++-
 providers/bnxt_re/bnxt_re-abi.h   | 5 +++++
 providers/bnxt_re/main.c          | 4 ++++
 providers/bnxt_re/main.h          | 2 ++
 providers/bnxt_re/verbs.c         | 1 +
 5 files changed, 16 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/kernel-headers/rdma/bnxt_re-abi.h b/kernel-headers/rdma/bnxt_re-abi.h
index dc52e3cf..0234763e 100644
--- a/kernel-headers/rdma/bnxt_re-abi.h
+++ b/kernel-headers/rdma/bnxt_re-abi.h
@@ -49,7 +49,8 @@ 
 #define BNXT_RE_CHIP_ID0_CHIP_MET_SFT		0x18
 
 enum {
-	BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL
+	BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
+	BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL
 };
 
 struct bnxt_re_uctx_resp {
@@ -62,6 +63,8 @@  struct bnxt_re_uctx_resp {
 	__aligned_u64 comp_mask;
 	__u32 chip_id0;
 	__u32 chip_id1;
+	__u32 wqe_mode;
+	__u32 rsvd1;
 };
 
 /*
diff --git a/providers/bnxt_re/bnxt_re-abi.h b/providers/bnxt_re/bnxt_re-abi.h
index c82019e8..d138cd9c 100644
--- a/providers/bnxt_re/bnxt_re-abi.h
+++ b/providers/bnxt_re/bnxt_re-abi.h
@@ -196,6 +196,11 @@  enum bnxt_re_ud_cqe_mask {
 	BNXT_RE_UD_CQE_SRCQPLO_SHIFT	= 0x30
 };
 
+enum bnxt_re_modes {
+	BNXT_RE_WQE_MODE_STATIC =	0x00,
+	BNXT_RE_WQE_MODE_VARIABLE =	0x01
+};
+
 struct bnxt_re_db_hdr {
 	__le32 indx;
 	__le32 typ_qid; /* typ: 4, qid:20*/
diff --git a/providers/bnxt_re/main.c b/providers/bnxt_re/main.c
index 1779e1ec..428affc7 100644
--- a/providers/bnxt_re/main.c
+++ b/providers/bnxt_re/main.c
@@ -158,6 +158,10 @@  static struct verbs_context *bnxt_re_alloc_context(struct ibv_device *vdev,
 					 BNXT_RE_CHIP_ID0_CHIP_MET_SFT) &
 					 0xFF;
 	}
+
+	if (resp.comp_mask & BNXT_RE_UCNTX_CMASK_HAVE_MODE)
+		cntx->wqe_mode = resp.wqe_mode;
+
 	pthread_spin_init(&cntx->fqlock, PTHREAD_PROCESS_PRIVATE);
 	/* mmap shared page. */
 	cntx->shpg = mmap(NULL, rdev->pg_size, PROT_READ | PROT_WRITE,
diff --git a/providers/bnxt_re/main.h b/providers/bnxt_re/main.h
index a63719e8..dc8166f2 100644
--- a/providers/bnxt_re/main.h
+++ b/providers/bnxt_re/main.h
@@ -146,6 +146,7 @@  struct bnxt_re_qp {
 	uint64_t wqe_cnt;
 	uint16_t mtu;
 	uint16_t qpst;
+	uint32_t qpmode;
 	uint8_t qptyp;
 	/* irdord? */
 };
@@ -178,6 +179,7 @@  struct bnxt_re_context {
 	uint32_t max_srq;
 	struct bnxt_re_dpi udpi;
 	void *shpg;
+	uint32_t wqe_mode;
 	pthread_mutex_t shlock;
 	pthread_spinlock_t fqlock;
 };
diff --git a/providers/bnxt_re/verbs.c b/providers/bnxt_re/verbs.c
index fb2cf5ac..11c01574 100644
--- a/providers/bnxt_re/verbs.c
+++ b/providers/bnxt_re/verbs.c
@@ -952,6 +952,7 @@  struct ibv_qp *bnxt_re_create_qp(struct ibv_pd *ibvpd,
 		goto fail;
 	/* alloc queues */
 	qp->cctx = &cntx->cctx;
+	qp->qpmode = cntx->wqe_mode & BNXT_RE_WQE_MODE_VARIABLE;
 	if (bnxt_re_alloc_queues(qp, attr, dev->pg_size))
 		goto failq;
 	/* Fill ibv_cmd */