diff options
| author | Potnuri Bharat Teja <bharat@chelsio.com> | 2018-08-02 11:33:03 +0530 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-08-02 20:16:02 -0600 |
| commit | b9855f4ca0fe582aabfdbd08f0d856b22486e157 (patch) | |
| tree | ae7ff712609358eb21fc0f5a0ce31ac100ddfce1 /drivers/infiniband/hw/cxgb4/cq.c | |
| parent | 8001b717f09460d9e17457f6bade6699aa14604f (diff) | |
iw_cxgb4: RDMA write with immediate support
Adds iw_cxgb4 functionality to support RDMA_WRITE_WITH_IMMEDATE opcode.
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/cq.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/cq.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c index 0c13f2838c84..6d3042794094 100644 --- a/drivers/infiniband/hw/cxgb4/cq.c +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -791,15 +791,32 @@ static int __c4iw_poll_cq_one(struct c4iw_cq *chp, struct c4iw_qp *qhp, wc->byte_len = CQE_LEN(&cqe); else wc->byte_len = 0; - wc->opcode = IB_WC_RECV; - if (CQE_OPCODE(&cqe) == FW_RI_SEND_WITH_INV || - CQE_OPCODE(&cqe) == FW_RI_SEND_WITH_SE_INV) { + + switch (CQE_OPCODE(&cqe)) { + case FW_RI_SEND: + wc->opcode = IB_WC_RECV; + break; + case FW_RI_SEND_WITH_INV: + case FW_RI_SEND_WITH_SE_INV: + wc->opcode = IB_WC_RECV; wc->ex.invalidate_rkey = CQE_WRID_STAG(&cqe); wc->wc_flags |= IB_WC_WITH_INVALIDATE; c4iw_invalidate_mr(qhp->rhp, wc->ex.invalidate_rkey); + break; + case FW_RI_WRITE_IMMEDIATE: + wc->opcode = IB_WC_RECV_RDMA_WITH_IMM; + wc->ex.imm_data = CQE_IMM_DATA(&cqe); + wc->wc_flags |= IB_WC_WITH_IMM; + break; + default: + pr_err("Unexpected opcode %d in the CQE received for QPID=0x%0x\n", + CQE_OPCODE(&cqe), CQE_QPID(&cqe)); + ret = -EINVAL; + goto out; } } else { switch (CQE_OPCODE(&cqe)) { + case FW_RI_WRITE_IMMEDIATE: case FW_RI_RDMA_WRITE: wc->opcode = IB_WC_RDMA_WRITE; break; |