Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-ie0-f171.google.com ([209.85.223.171]:36768 "EHLO mail-ie0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756418AbaGIQ7f (ORCPT ); Wed, 9 Jul 2014 12:59:35 -0400 Subject: [PATCH v2 21/21] xprtrdma: Handle additional connection events From: Chuck Lever To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Date: Wed, 09 Jul 2014 12:59:31 -0400 Message-ID: <20140709165931.3496.8638.stgit@manet.1015granger.net> In-Reply-To: <20140709163326.3496.37893.stgit@manet.1015granger.net> References: <20140709163326.3496.37893.stgit@manet.1015granger.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: Commit 38ca83a5 added RDMA_CM_EVENT_TIMEWAIT_EXIT. But that status is relevant only for consumers that re-use their QPs on new connections. xprtrdma creates a fresh QP on reconnection, so that event should be explicitly ignored. Squelch the alarming "unexpected CM event" message. Signed-off-by: Chuck Lever --- net/sunrpc/xprtrdma/verbs.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index bc0909a..9de5965 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -326,8 +326,16 @@ static const char * const conn[] = { "rejected", "established", "disconnected", - "device removal" + "device removal", + "multicast join", + "multicast error", + "address change", + "timewait exit", }; + +#define CONNECTION_MSG(status) \ + ((status) < ARRAY_SIZE(conn) ? \ + conn[(status)] : "unrecognized connection error") #endif static int @@ -385,23 +393,18 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event) case RDMA_CM_EVENT_DEVICE_REMOVAL: connstate = -ENODEV; connected: - dprintk("RPC: %s: %s: %pI4:%u (ep 0x%p event 0x%x)\n", - __func__, - (event->event <= 11) ? conn[event->event] : - "unknown connection error", - &addr->sin_addr.s_addr, - ntohs(addr->sin_port), - ep, event->event); atomic_set(&rpcx_to_rdmax(ep->rep_xprt)->rx_buf.rb_credits, 1); dprintk("RPC: %s: %sconnected\n", __func__, connstate > 0 ? "" : "dis"); ep->rep_connected = connstate; ep->rep_func(ep); wake_up_all(&ep->rep_connect_wait); - break; + /*FALLTHROUGH*/ default: - dprintk("RPC: %s: unexpected CM event %d\n", - __func__, event->event); + dprintk("RPC: %s: %pI4:%u (ep 0x%p): %s\n", + __func__, &addr->sin_addr.s_addr, + ntohs(addr->sin_port), ep, + CONNECTION_MSG(event->event)); break; }