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    Subject[PATCH rdma-next 09/10] net/smc: Enable Relaxed Ordering
    Date
    From: Avihai Horon <avihaih@nvidia.com>

    Enable Relaxed Ordering for smc.

    Relaxed Ordering is an optional access flag and as such, it is ignored
    by vendors that don't support it.

    Signed-off-by: Avihai Horon <avihaih@nvidia.com>
    Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
    Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
    ---
    net/smc/smc_ib.c | 3 ++-
    net/smc/smc_wr.c | 3 ++-
    2 files changed, 4 insertions(+), 2 deletions(-)

    diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
    index 4e91ed3dc265..6b65c5d1f957 100644
    --- a/net/smc/smc_ib.c
    +++ b/net/smc/smc_ib.c
    @@ -579,7 +579,8 @@ int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
    return 0; /* already done */

    buf_slot->mr_rx[link_idx] =
    - ib_alloc_mr(pd, IB_MR_TYPE_MEM_REG, 1 << buf_slot->order, 0);
    + ib_alloc_mr(pd, IB_MR_TYPE_MEM_REG, 1 << buf_slot->order,
    + IB_ACCESS_RELAXED_ORDERING);
    if (IS_ERR(buf_slot->mr_rx[link_idx])) {
    int rc;

    diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
    index cbc73a7e4d59..78e9650621f1 100644
    --- a/net/smc/smc_wr.c
    +++ b/net/smc/smc_wr.c
    @@ -555,7 +555,8 @@ static void smc_wr_init_sge(struct smc_link *lnk)
    lnk->wr_reg.wr.num_sge = 0;
    lnk->wr_reg.wr.send_flags = IB_SEND_SIGNALED;
    lnk->wr_reg.wr.opcode = IB_WR_REG_MR;
    - lnk->wr_reg.access = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE;
    + lnk->wr_reg.access = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE |
    + IB_ACCESS_RELAXED_ORDERING;
    }

    void smc_wr_free_link(struct smc_link *lnk)
    --
    2.30.2
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