From: Chuck Lever <chuck.lever@oracle.com>
Date: Mon, 30 Oct 2017 16:21:49 -0400
Subject: xprtrdma: Put Send CQ in IB_POLL_WORKQUEUE mode
Patch-mainline: v4.15-rc1
Git-commit: a4699f5647f369e8ab7ec56b7cd98580c933c3f3
References: bsc#1103992 FATE#326009
Lift the Send and LocalInv completion handlers out of soft IRQ mode
to make room for other work. Also, move the Send CQ to a different
CPU than the CPU where the Receive CQ is running, for improved
scalability.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
net/sunrpc/xprtrdma/verbs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -558,7 +558,7 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep,
sendcq = ib_alloc_cq(ia->ri_device, NULL,
ep->rep_attr.cap.max_send_wr + 1,
- 0, IB_POLL_SOFTIRQ);
+ 1, IB_POLL_WORKQUEUE);
if (IS_ERR(sendcq)) {
rc = PTR_ERR(sendcq);
dprintk("RPC: %s: failed to create send CQ: %i\n",