Commit a4699f56 authored Oct 30, 2017 by Chuck Lever Committed by Anna Schumaker Nov 17, 2017

xprtrdma: Put Send CQ in IB_POLL_WORKQUEUE mode



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>

parent 212bf41d

net/sunrpc/xprtrdma/verbs.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -558,7 +558,7 @@ 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,
		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",

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