From: Steve Wise <swise@opengridcomputing.com>
Date: Wed, 9 Apr 2014 14:38:26 +0000 (-0500)
Subject: RDMA/cxgb4: rmb() after reading valid gen bit
X-Git-Tag: omap-for-v3.16/pm-signed~84^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=def4771f4bf428d39c7fe6006a9e1a20ee380d1e;p=pandora-kernel.git

RDMA/cxgb4: rmb() after reading valid gen bit

Some HW platforms can reorder read operations, so we must rmb() after
we see a valid gen bit in a CQE but before we read any other fields
from the CQE.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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