tree 40f9546c8c0ecd6fcfb05d2174c336cc657b0d10
parent bf2e2e6b87ae38fab460a36abfe272d99ae8be49
author Stephen M. Cameron <scameron@beardog.cce.hp.com> 1304452432 -0500
committer Jens Axboe <jaxboe@fusionio.com> 1304691836 -0600

cciss: do soft reset if hard reset is broken

on driver load, if reset_devices is set, and the hard reset
attempts fail, try to bring up the controller to the point that
a command can be sent, and send it a soft reset command, then
after the reset undo whatever driver initialization was done to get
it to the point to take a command, and re-do it after the reset.

This is to get kdump to work on all the "non-resettable" controllers
(except 64xx controllers which can't be reset due to the potentially
shared cache module.)

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>