diff options
Diffstat (limited to 'drivers/infiniband/sw/rdmavt/qp.c')
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/qp.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c index 727e81cc2c8f..a3dd1e536860 100644 --- a/drivers/infiniband/sw/rdmavt/qp.c +++ b/drivers/infiniband/sw/rdmavt/qp.c @@ -1646,7 +1646,7 @@ static int rvt_post_one_wr(struct rvt_qp *qp, struct rvt_pd *pd; struct rvt_dev_info *rdi = ib_to_rvt(qp->ibqp.device); u8 log_pmtu; - int ret; + int ret, incr; size_t cplen; bool reserved_op; int local_ops_delayed = 0; @@ -1719,22 +1719,23 @@ static int rvt_post_one_wr(struct rvt_qp *qp, wqe->length = 0; j = 0; if (wr->num_sge) { + struct rvt_sge *last_sge = NULL; + acc = wr->opcode >= IB_WR_RDMA_READ ? IB_ACCESS_LOCAL_WRITE : 0; for (i = 0; i < wr->num_sge; i++) { u32 length = wr->sg_list[i].length; - int ok; if (length == 0) continue; - ok = rvt_lkey_ok(rkt, pd, &wqe->sg_list[j], - &wr->sg_list[i], acc); - if (!ok) { - ret = -EINVAL; - goto bail_inval_free; - } + incr = rvt_lkey_ok(rkt, pd, &wqe->sg_list[j], last_sge, + &wr->sg_list[i], acc); + if (unlikely(incr < 0)) + goto bail_lkey_error; wqe->length += length; - j++; + if (incr) + last_sge = &wqe->sg_list[j]; + j += incr; } wqe->wr.num_sge = j; } @@ -1781,12 +1782,14 @@ static int rvt_post_one_wr(struct rvt_qp *qp, wqe->wr.send_flags &= ~RVT_SEND_RESERVE_USED; qp->s_avail--; } - trace_rvt_post_one_wr(qp, wqe); + trace_rvt_post_one_wr(qp, wqe, wr->num_sge); smp_wmb(); /* see request builders */ qp->s_head = next; return 0; +bail_lkey_error: + ret = incr; bail_inval_free: /* release mr holds */ while (j) { |