diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2016-02-17 08:15:42 -0800 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-02-29 17:10:27 -0500 |
| commit | 086dc6e359d11fd29d0f2041cdc0bb76a5d807d8 (patch) | |
| tree | 20dc645465f0115f6bf77990929cab1ef371ad83 /drivers/infiniband/hw/cxgb4/cq.c | |
| parent | 765d67748bcf802c4642a49cd0139787d0d80783 (diff) | |
| download | linux-086dc6e359d11fd29d0f2041cdc0bb76a5d807d8.tar.bz2 | |
iw_cxgb4: add queue drain functions
Add completion objects, named sq_drained and rq_drained, to the c4iw_qp
struct. The queue-specific completion object is signaled when the last
CQE is drained from the CQ for that queue.
Add c4iw_drain_sq() to block until qp->rq_drained is completed.
Add c4iw_drain_rq() to block until qp->sq_drained is completed.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/cq.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/cq.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c index cf21df4a8bf5..b4eeb783573c 100644 --- a/drivers/infiniband/hw/cxgb4/cq.c +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -815,8 +815,15 @@ static int c4iw_poll_cq_one(struct c4iw_cq *chp, struct ib_wc *wc) } } out: - if (wq) + if (wq) { + if (unlikely(qhp->attr.state != C4IW_QP_STATE_RTS)) { + if (t4_sq_empty(wq)) + complete(&qhp->sq_drained); + if (t4_rq_empty(wq)) + complete(&qhp->rq_drained); + } spin_unlock(&qhp->lock); + } return ret; } |