From: Brice Goglin <brice@myri.com>
Date: Fri, 7 Aug 2009 10:44:22 +0000 (+0000)
Subject: myri10ge: improve parity error detection and recovery
X-Git-Tag: v2.6.32-rc1~703^2~430
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d02342151c51344034fbdeceff8effcb0a77c573;p=pandora-kernel.git

myri10ge: improve parity error detection and recovery

Improve myri10ge parity error detection and recovery:
1) Don't restore PCI config space to a rebooted NIC until AFTER the
   host is quiescent.
2) Let myri10ge_close() know the NIC is dead, so it won't waste time
   waiting for a dead nic to respond to MXGEFW_CMD_ETHERNET_DOWN
3) When the NIC is quiet (link down, or otherwise idle link) use
   a pci config space read to detect a rebooted NIC.  Otherwise
   we might never notice that a NIC rebooted

Signed-off-by: Andrew Gallatin <gallatin@myri.com>
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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