isci: implement I_T_nexus_reset

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This is a requirement for 2.6.39's new libata eh.

Still some questions about lldd_dev_gone racing against dev->lldd_dev
lookups, but we are at least no more broken than mvsas in this regard.

We also short-circuit I_T_nexus_reset invocations from the device
discovery path (IDEV_EH similar to MVS_DEV_EH) to filter out the
resulting domain rediscoveries triggered by the reset.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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This commit is contained in:

Dan Williams 2011-05-02 13:59:25 -07:00

parent 5b3f2bd877

commit d06b487b78

3 changed files with 76 additions and 64 deletions

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1

drivers/scsi/isci/remote_device.c

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1

drivers/scsi/isci/remote_device.h

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140

drivers/scsi/isci/task.c

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