Skip the ib_poll_cq() after re-arming, if the provider knows there
are no additional items waiting. (Have a look at commit ed23a727 for
more details).
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/xprtrdma/verbs.c | 14 ++++++++++----
1 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index ce7b45f..81daf2b 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -192,8 +192,11 @@ rpcrdma_sendcq_upcall(struct ib_cq *cq, void *cq_context)
return;
}
- rc = ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
- if (rc) {
+ rc = ib_req_notify_cq(cq,
+ IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS);
+ if (rc == 0)
+ return;
+ if (rc < 0) {
dprintk("RPC: %s: ib_req_notify_cq failed: %i\n",
__func__, rc);
return;
@@ -272,8 +275,11 @@ rpcrdma_recvcq_upcall(struct ib_cq *cq, void *cq_context)
return;
}
- rc = ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
- if (rc) {
+ rc = ib_req_notify_cq(cq,
+ IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS);
+ if (rc == 0)
+ return;
+ if (rc < 0) {
dprintk("RPC: %s: ib_req_notify_cq failed: %i\n",
__func__, rc);
return;
--
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