From: Jing Huang <huangj@brocade.com>
Date: Wed, 13 Apr 2011 18:45:53 +0000 (-0700)
Subject: [SCSI] bfa: kdump fix
X-Git-Tag: v3.0-rc1~33^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45d7f0cc58183062adea0a1de3d8cba768134138;p=pandora-kernel.git

[SCSI] bfa: kdump fix

Root cause: When kernel crashes, bfa IOC state machine and FW doesn't get
a notification and hence are not cleanly shutdown. So registers holding
driver/IOC state information are not reset back to valid disabled/parking
values. This causes subsequent driver initialization to hang during kdump
kernel boot.

Fix description: during the initialization of first PCI function, reset
corresponding register when unclean shutown is detect by reading chip
registers. This will make sure that ioc/fw gets clean re-initialization.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
---

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