From: Kashyap, Desai <kashyap.desai@lsi.com>
Date: Wed, 23 Sep 2009 12:05:41 +0000 (+0530)
Subject: [SCSI] mpt2sas: Freeze the sdev IO queue when firmware sends internal dev reset
X-Git-Tag: v2.6.33-rc1~344^2~205
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ffc457ed6fe33728657a0cfb7509b90d554c21f;p=pandora-kernel.git

[SCSI] mpt2sas: Freeze the sdev IO queue when firmware sends internal dev reset

When receiving the MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET event,
the driver will set the tm_busy flag in the sdev private host data, When
tm_busy flag is set, the driver will return SCSI_MLQUEUE_DEVICE_BUSY,
effectly freezing the IO to the device. The tm_busy flag is cleared with the
MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET event.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Eric Moore <Eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---

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