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From: Bob Pearson <rpearsonhpe@gmail.com>
To: jgg@nvidia.com, zyjzyj2000@gmail.com, linux-rdma@vger.kernel.org
Cc: Bob Pearson <rpearsonhpe@gmail.com>
Subject: [PATCH for-next v2 5/5] RDMA/rxe: Convert kernel UD post send to use ah_num
Date: Sun, 18 Jul 2021 16:27:04 -0500	[thread overview]
Message-ID: <20210718212703.21471-6-rpearsonhpe@gmail.com> (raw)
In-Reply-To: <20210718212703.21471-1-rpearsonhpe@gmail.com>

Modify ib_post_send for kernel UD sends to put the AH index into the
WQE instead of the address vector.

Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
---
 drivers/infiniband/sw/rxe/rxe_verbs.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index 1cc12c913e39..5d63e276306c 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -558,8 +558,11 @@ static void init_send_wr(struct rxe_qp *qp, struct rxe_send_wr *wr,
 	if (qp_type(qp) == IB_QPT_UD ||
 	    qp_type(qp) == IB_QPT_SMI ||
 	    qp_type(qp) == IB_QPT_GSI) {
+		struct ib_ah *ibah = ud_wr(ibwr)->ah;
+
 		wr->wr.ud.remote_qpn = ud_wr(ibwr)->remote_qpn;
 		wr->wr.ud.remote_qkey = ud_wr(ibwr)->remote_qkey;
+		wr->wr.ud.ah_num = to_rah(ibah)->ah_num;
 		if (qp_type(qp) == IB_QPT_GSI)
 			wr->wr.ud.pkey_index = ud_wr(ibwr)->pkey_index;
 		if (wr->opcode == IB_WR_SEND_WITH_IMM)
@@ -631,12 +634,6 @@ static void init_send_wqe(struct rxe_qp *qp, const struct ib_send_wr *ibwr,
 		return;
 	}
 
-	if (qp_type(qp) == IB_QPT_UD ||
-	    qp_type(qp) == IB_QPT_SMI ||
-	    qp_type(qp) == IB_QPT_GSI)
-		memcpy(&wqe->wr.wr.ud.av, &to_rah(ud_wr(ibwr)->ah)->av,
-		       sizeof(struct rxe_av));
-
 	if (unlikely(ibwr->send_flags & IB_SEND_INLINE))
 		copy_inline_data_to_wqe(wqe, ibwr);
 	else
-- 
2.30.2


      parent reply	other threads:[~2021-07-18 21:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-18 21:26 [PATCH for-next v2 0/5] Replace AV by AH in UD sends Bob Pearson
2021-07-18 21:27 ` [PATCH for-next v2 1/5] RDMA/rxe: Change user/kernel API to allow indexing AH Bob Pearson
2021-07-19 12:03   ` Jason Gunthorpe
2021-07-18 21:27 ` [PATCH for-next v2 2/5] RDMA/rxe: Change AH objects to indexed Bob Pearson
2021-07-18 21:27 ` [PATCH for-next v2 3/5] RDMA/rxe: Create AH index and return to user space Bob Pearson
2021-07-18 21:27 ` [PATCH for-next v2 4/5] RDMA/rxe: Lookup kernel AH from ah index in UD WQEs Bob Pearson
2021-07-18 21:27 ` Bob Pearson [this message]

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