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| author | Chuck Lever <chuck.lever@oracle.com> | 2014-07-29 17:23:52 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2014-07-31 16:22:53 -0400 |
| commit | a7bc211ac926172ad20463afcf00ae7b9ebcd950 (patch) | |
| tree | 5ae7beefa905240849896f501146c751677a2a94 /net/sunrpc/xprtrdma | |
| parent | 6ab59945f292a5c6cbc4a6c2011f1a732a116af2 (diff) | |
| download | linux-a7bc211ac926172ad20463afcf00ae7b9ebcd950.tar.gz linux-a7bc211ac926172ad20463afcf00ae7b9ebcd950.tar.bz2 linux-a7bc211ac926172ad20463afcf00ae7b9ebcd950.zip | |
xprtrdma: On disconnect, don't ignore pending CQEs
xprtrdma is currently throwing away queued completions during
a reconnect. RPC replies posted just before connection loss, or
successful completions that change the state of an FRMR, can be
missed.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Shirley Ma <shirley.ma@oracle.com>
Tested-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma')
| -rw-r--r-- | net/sunrpc/xprtrdma/verbs.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 13ff87400203..e49cdc930dfd 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -310,6 +310,13 @@ rpcrdma_recvcq_upcall(struct ib_cq *cq, void *cq_context) rpcrdma_recvcq_poll(cq, ep); } +static void +rpcrdma_flush_cqs(struct rpcrdma_ep *ep) +{ + rpcrdma_recvcq_upcall(ep->rep_attr.recv_cq, ep); + rpcrdma_sendcq_upcall(ep->rep_attr.send_cq, ep); +} + #ifdef RPC_DEBUG static const char * const conn[] = { "address resolved", @@ -872,9 +879,7 @@ retry: if (rc && rc != -ENOTCONN) dprintk("RPC: %s: rpcrdma_ep_disconnect" " status %i\n", __func__, rc); - - rpcrdma_clean_cq(ep->rep_attr.recv_cq); - rpcrdma_clean_cq(ep->rep_attr.send_cq); + rpcrdma_flush_cqs(ep); xprt = container_of(ia, struct rpcrdma_xprt, rx_ia); id = rpcrdma_create_id(xprt, ia, @@ -985,8 +990,7 @@ rpcrdma_ep_disconnect(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia) { int rc; - rpcrdma_clean_cq(ep->rep_attr.recv_cq); - rpcrdma_clean_cq(ep->rep_attr.send_cq); + rpcrdma_flush_cqs(ep); rc = rdma_disconnect(ia->ri_id); if (!rc) { /* returns without wait if not connected */ |