From: Kumar Sanghvi <kumaras@chelsio.com>
Date: Wed, 18 Dec 2013 11:08:19 +0000 (+0530)
Subject: cxgb4: Reserve stid 0 for T4/T5 adapters
X-Git-Tag: v3.13-rc7~13^2~18^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6f8eaece6d5f0247931b6dac140e6cf876f48de;p=pandora-kernel.git

cxgb4: Reserve stid 0 for T4/T5 adapters

When creating offload server entries, an IPv6 passive connection request
can trigger a reply with a null STID, whereas the driver would expect
the reply 'STID to match the value used for the request.
This happens due to h/w limitation on T4 and T5.

This patch ensures that STID 0 is never used if the stid range starts
from zero.

Based on original work by Santosh Rastapur <santosh@chelsio.com>

Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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