RDMA/qedr: Fix iWARP write and send with immediate

[ Upstream commit 551e1c67b4207455375a2e7a285dea1c7e8fc361 ]

iWARP does not support RDMA WRITE or SEND with immediate data.
Driver should check this before submitting to FW and return an
immediate error

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index dc8fca0707e793064e151279673723f9eb299baf..b231b98a4522b13d6fa519e990ba09cd3184185d 100644 (file)
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -2832,6 +2832,11 @@ static int __qedr_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 
        switch (wr->opcode) {
        case IB_WR_SEND_WITH_IMM:
+               if (unlikely(rdma_protocol_iwarp(&dev->ibdev, 1))) {
+                       rc = -EINVAL;
+                       *bad_wr = wr;
+                       break;
+               }
                wqe->req_type = RDMA_SQ_REQ_TYPE_SEND_WITH_IMM;
                swqe = (struct rdma_sq_send_wqe_1st *)wqe;
                swqe->wqe_size = 2;
@@ -2873,6 +2878,11 @@ static int __qedr_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                break;
 
        case IB_WR_RDMA_WRITE_WITH_IMM:
+               if (unlikely(rdma_protocol_iwarp(&dev->ibdev, 1))) {
+                       rc = -EINVAL;
+                       *bad_wr = wr;
+                       break;
+               }
                wqe->req_type = RDMA_SQ_REQ_TYPE_RDMA_WR_WITH_IMM;
                rwqe = (struct rdma_sq_rdma_wqe_1st *)wqe;