From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Thu, 10 Jan 2013 15:18:35 +0000 (+0000)
Subject: mlx4_core: Fix advertisement of wrong PF context behaviour
X-Git-Tag: v3.8-rc7~5^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f97b4b5d46d586782b40c8ced81bf9763c18e7cc;p=pandora-kernel.git

mlx4_core: Fix advertisement of wrong PF context behaviour

Commit 08ff32352d6f ("mlx4: 64-byte CQE/EQE support") introduced a
regression where older guest VF drivers failed to load even when
64-byte EQEs/CQEs are disabled, since the PF wrongly advertises the
new context behaviour anyway.  The failure looks like:

    mlx4_core 0000:00:07.0: Unknown pf context behaviour
    mlx4_core 0000:00:07.0: Failed to obtain slave caps
    mlx4_core: probe of 0000:00:07.0 failed with error -38

Fix this by basing this advertisement on dev->caps.flags, which is the
operational capabilities used by the QUERY_FUNC_CAP command wrapper
(dev_cap->flags holds the firmware capabilities).

Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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