xprtrdma: Make sure Send CQ is allocated on an existing compvec

[ 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>

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 3d6bf79..5ddbf22 100644 (file)
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -546,7 +546,8 @@ 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",