From 9828ca654b52848e7eb7dcc9b0994ff130dd4546 Mon Sep 17 00:00:00 2001
From: Steve Wise <swise@opengridcomputing.com>
Date: Sat, 10 Nov 2018 05:27:39 -0800
Subject: [PATCH 1/1] iw_cxgb4: only reconnect with MPAv1 if the peer aborts
Git-commit: 9828ca654b52848e7eb7dcc9b0994ff130dd4546
Patch-mainline: v5.0
References: bsc#1111666
Only retry connection setup with MPAv1 if the peer actually aborted the
connection upon receiving the MPAv2 start message. This avoids retrying
with MPAv1 in the case where the connection was aborted due to retransmit
timeouts.
Fixes: d2fe99e86bb2 ("RDMA/cxgb4: Add support for MPAv2 Enhanced RDMA Negotiation")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
---
drivers/infiniband/hw/cxgb4/cm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 615413bd3e8d..659175c9ae91 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -2795,7 +2795,8 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
break;
case MPA_REQ_SENT:
(void)stop_ep_timer(ep);
- if (mpa_rev == 1 || (mpa_rev == 2 && ep->tried_with_mpa_v1))
+ if (status != CPL_ERR_CONN_RESET || mpa_rev == 1 ||
+ (mpa_rev == 2 && ep->tried_with_mpa_v1))
connect_reply_upcall(ep, -ECONNRESET);
else {
/*
--
2.26.2