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    Subject[PATCH AUTOSEL 4.20 35/52] xprtrdma: Make sure Send CQ is allocated on an existing compvec
    Date
    From: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>

    [ Upstream commit a4cb5bdb754afe21f3e9e7164213e8600cf69427 ]

    Make sure the device has at least 2 completion vectors
    before allocating to compvec#1

    Fixes: a4699f5647f3 (xprtrdma: Put Send CQ in IB_POLL_WORKQUEUE mode)
    Signed-off-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
    Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
    Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    net/sunrpc/xprtrdma/verbs.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
    index dffedf1df02c..dd1839922f16 100644
    --- a/net/sunrpc/xprtrdma/verbs.c
    +++ b/net/sunrpc/xprtrdma/verbs.c
    @@ -583,7 +583,8 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia,

    sendcq = ib_alloc_cq(ia->ri_device, NULL,
    ep->rep_attr.cap.max_send_wr + 1,
    - 1, IB_POLL_WORKQUEUE);
    + ia->ri_device->num_comp_vectors > 1 ? 1 : 0,
    + IB_POLL_WORKQUEUE);
    if (IS_ERR(sendcq)) {
    rc = PTR_ERR(sendcq);
    dprintk("RPC: %s: failed to create send CQ: %i\n",
    --
    2.19.1
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