diff options
| author |   Devesh Sharma <devesh.sharma@broadcom.com> | 2018-02-26 01:51:37 -0800 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-02-28 12:10:32 -0700 |
| commit | a45bc17b360d75fac9ced85e99fda14bf38b4dc3 (patch) | |
| tree | b125885352bedd64172589e2070b14c520ba2424 /drivers/infiniband/hw | |
| parent | IB/core: Fix missing RDMA cgroups release in case of failure to register device (diff) | |
| download | linux-dev-a45bc17b360d75fac9ced85e99fda14bf38b4dc3.tar.xz linux-dev-a45bc17b360d75fac9ced85e99fda14bf38b4dc3.zip | |
RDMA/bnxt_re: Unconditionly fence non wire memory operations
HW requires an unconditonal fence for all non-wire memory operations
through SQ. This guarantees the completions of these memory operations.
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/ib_verbs.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c index 643174d949a8..755f1ccd82bb 100644 --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c @@ -2227,10 +2227,13 @@ static int bnxt_re_build_inv_wqe(struct ib_send_wr *wr, wqe->type = BNXT_QPLIB_SWQE_TYPE_LOCAL_INV; wqe->local_inv.inv_l_key = wr->ex.invalidate_rkey; + /* Need unconditional fence for local invalidate + * opcode to work as expected. + */ + wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE; + if (wr->send_flags & IB_SEND_SIGNALED) wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP; - if (wr->send_flags & IB_SEND_FENCE) - wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE; if (wr->send_flags & IB_SEND_SOLICITED) wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT; @@ -2251,8 +2254,12 @@ static int bnxt_re_build_reg_wqe(struct ib_reg_wr *wr, wqe->frmr.levels = qplib_frpl->hwq.level + 1; wqe->type = BNXT_QPLIB_SWQE_TYPE_REG_MR; - if (wr->wr.send_flags & IB_SEND_FENCE) - wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE; + /* Need unconditional fence for reg_mr + * opcode to function as expected. + */ + + wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE; + if (wr->wr.send_flags & IB_SEND_SIGNALED) wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP; |