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| author | Shiraz Saleem <shiraz.saleem@intel.com> | 2017-10-03 11:11:48 -0500 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-10-04 15:29:39 -0400 |
| commit | 40837273d084ad1584dbaea5e8fbefe0a64f2a6b (patch) | |
| tree | d380b30b05f89030c4b0ecbaf7873517795e6e5a /drivers/infiniband/hw/i40iw | |
| parent | abae49e433c5b02b6ff583eee00321eee2bad18a (diff) | |
| download | linux-40837273d084ad1584dbaea5e8fbefe0a64f2a6b.tar.gz linux-40837273d084ad1584dbaea5e8fbefe0a64f2a6b.tar.bz2 linux-40837273d084ad1584dbaea5e8fbefe0a64f2a6b.zip | |
i40iw: Do not allow posting WR after QP is flushed
A Work Request (WR) posted after QP is flushed will not
get a flush completion.
Correct this problem by not allowing posting of WRs
after a QP is flushed.
Fixes: d37498417947 ("i40iw: add files for iwarp interface")
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/i40iw')
| -rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_verbs.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c index 28b3d02d511b..58d815f06e4e 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c +++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c @@ -2202,6 +2202,12 @@ static int i40iw_post_send(struct ib_qp *ibqp, ukqp = &iwqp->sc_qp.qp_uk; spin_lock_irqsave(&iwqp->lock, flags); + + if (iwqp->flush_issued) { + err = -EINVAL; + goto out; + } + while (ib_wr) { inv_stag = false; memset(&info, 0, sizeof(info)); @@ -2344,6 +2350,7 @@ static int i40iw_post_send(struct ib_qp *ibqp, ib_wr = ib_wr->next; } +out: if (err) *bad_wr = ib_wr; else @@ -2376,6 +2383,12 @@ static int i40iw_post_recv(struct ib_qp *ibqp, memset(&post_recv, 0, sizeof(post_recv)); spin_lock_irqsave(&iwqp->lock, flags); + + if (iwqp->flush_issued) { + err = -EINVAL; + goto out; + } + while (ib_wr) { post_recv.num_sges = ib_wr->num_sge; post_recv.wr_id = ib_wr->wr_id; |