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iw_cxgb4: only reconnect with MPAv1 if the peer aborts

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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: d2fe99e86b ("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>
This commit is contained in:
Steve Wise 2018-11-10 05:27:39 -08:00 committed by Jason Gunthorpe
parent 3eeeb7a59a
commit 9828ca654b
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/hw/cxgb4/cm.c
View file

@ -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 {
/*