From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Wed, 13 Aug 2014 05:52:13 +0000 (+0000)
Subject: ixgbevf: introduce delay for checking VFLINKS on 82599
X-Git-Tag: fixes-against-v3.18-rc2~81^2~154^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8a2ca19bc1479745952967ec998fd92de92ec85;p=pandora-kernel.git

ixgbevf: introduce delay for checking VFLINKS on 82599

VFLINKS.LINKUP bit tends to flap when a DA or SFP+ cable is disconnected.
It can take up to 500 usecs for the LINKUP bit to be correct.

This patch resolves the issue by introducing a delay for 82599 VFs of at
least 500 usecs to make sure the VFLINKS value is correct.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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