From 5675add36e76b9487e7f9e689f854cb8d6afd9b4 Mon Sep 17 00:00:00 2001
From: Tom Talpey <talpey@netapp.com>
Date: Thu, 9 Oct 2008 15:01:41 -0400
Subject: RPC/RDMA: harden connection logic against missing/late rdma_cm
 upcalls.

Add defensive timeouts to wait_for_completion() calls in RDMA
address resolution, and make them interruptible. Fix the timeout
units to milliseconds (formerly jiffies) and move to private header.

Signed-off-by: Tom Talpey <talpey@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprtrdma/xprt_rdma.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'net/sunrpc/xprtrdma/xprt_rdma.h')

diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index fde6499a53b..c7a7eba991b 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -51,6 +51,9 @@
 #include <linux/sunrpc/rpc_rdma.h> 	/* RPC/RDMA protocol */
 #include <linux/sunrpc/xprtrdma.h> 	/* xprt parameters */
 
+#define RDMA_RESOLVE_TIMEOUT	(5000)	/* 5 seconds */
+#define RDMA_CONNECT_RETRY_MAX	(2)	/* retries if no listener backlog */
+
 /*
  * Interface Adapter -- one per transport instance
  */
-- 
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