tree 80702b8ba0454540cc7ea19cfe49871192ab860c
parent f7441a791aeaeac2e1f1f71b485d1372016f9285
author Mike Christie <michaelc@cs.wisc.edu> 1204331119 -0600
committer James Bottomley <James.Bottomley@HansenPartnership.com> 1207588541 -0500

[SCSI] scsi_error: add target reset handler

The problem is that serveral drivers are sending a target reset from the
device reset handler, and if we have multiple devices a target reset gets
sent for each device when only one would be sufficient. And if we do a target
reset it affects all the commands on the target so the device reset handler
code only cleaning up one devices's commands makes programming the driver a
little more difficult than it should be.

This patch adds a target reset handler, which drivers can use to send
a target reset. If successful it cleans up the commands for a devices
accessed through that starget.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>