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H A Dlibata-pmp.cdiff 6c8ea89cecd780faa4f4c8ed8b3b6ab88f9fa841 Wed Sep 01 10:50:07 CDT 2010 Tejun Heo <tj@kernel.org> libata: implement LPM support for port multipliers

Port multipliers can do DIPM on fan-out links fine. Implement support
for it. Tested w/ SIMG 57xx and marvell PMPs. Both the host and
fan-out links enter power save modes nicely.

SIMG 37xx and 47xx report link offline on SStatus causing EH to detach
the devices. Blacklisted.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
H A Dlibata.hdiff 6c8ea89cecd780faa4f4c8ed8b3b6ab88f9fa841 Wed Sep 01 10:50:07 CDT 2010 Tejun Heo <tj@kernel.org> libata: implement LPM support for port multipliers

Port multipliers can do DIPM on fan-out links fine. Implement support
for it. Tested w/ SIMG 57xx and marvell PMPs. Both the host and
fan-out links enter power save modes nicely.

SIMG 37xx and 47xx report link offline on SStatus causing EH to detach
the devices. Blacklisted.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
H A Dlibata-eh.cdiff 6c8ea89cecd780faa4f4c8ed8b3b6ab88f9fa841 Wed Sep 01 10:50:07 CDT 2010 Tejun Heo <tj@kernel.org> libata: implement LPM support for port multipliers

Port multipliers can do DIPM on fan-out links fine. Implement support
for it. Tested w/ SIMG 57xx and marvell PMPs. Both the host and
fan-out links enter power save modes nicely.

SIMG 37xx and 47xx report link offline on SStatus causing EH to detach
the devices. Blacklisted.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>