RDMA/rxe: Remove reliable datagram support

The rdma_rxe driver does not actually support the reliable datagram
transport but contains two references to RD opcodes in driver code.  This
commit removes these references to RD transport opcodes which are never
used.

Link: https://lore.kernel.org/r/cce0f07d-25fc-5880-69e7-001d951750b7@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c
index 52c1d8f..5f7348b 100644 (file)
--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -413,8 +413,7 @@ static struct sk_buff *init_req_packet(struct rxe_qp *qp,
 
        if (pkt->mask & RXE_ATMETH_MASK) {
                atmeth_set_va(pkt, wqe->iova);
-               if (opcode == IB_OPCODE_RC_COMPARE_SWAP ||
-                   opcode == IB_OPCODE_RD_COMPARE_SWAP) {
+               if (opcode == IB_OPCODE_RC_COMPARE_SWAP) {
                        atmeth_set_swap_add(pkt, ibwr->wr.atomic.swap);
                        atmeth_set_comp(pkt, ibwr->wr.atomic.compare_add);
                } else {

diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c
index 9dc38f7..e2653a8 100644 (file)
--- a/drivers/infiniband/sw/rxe/rxe_resp.c
+++ b/drivers/infiniband/sw/rxe/rxe_resp.c
@@ -576,8 +576,7 @@ static enum resp_states process_atomic(struct rxe_qp *qp,
 
        qp->resp.atomic_orig = *vaddr;
 
-       if (pkt->opcode == IB_OPCODE_RC_COMPARE_SWAP ||
-           pkt->opcode == IB_OPCODE_RD_COMPARE_SWAP) {
+       if (pkt->opcode == IB_OPCODE_RC_COMPARE_SWAP) {
                if (*vaddr == atmeth_comp(pkt))
                        *vaddr = atmeth_swap_add(pkt);
        } else {