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author | Tejun Heo <htejun@gmail.com> | 2005-11-18 00:09:05 -0500 |
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committer | Jeff Garzik <jgarzik@pobox.com> | 2005-11-18 13:11:39 -0500 |
commit | 7d1ce682d08625258524d23ef5eb9e7ae261c1d0 (patch) | |
tree | c089afbea310f50e0e869610573125bbe3377300 /drivers/scsi/gvp11.c | |
parent | fc71fe40d2bedcc57d3406bf2050481f8b3441b6 (diff) |
[PATCH] sil24: add sil24_restart_controller
When an error condition is raised by device via D2H FIS or SDB. sil24
controller should be restarted by setting PORT_CS_INIT and waiting
until PORT_CS_RDY is asserted instead of resetting the controller.
This patch implements sil24_restart_controller for those cases. This
patch also makes sure that PORT_CS_RDY is asserted on
sil24_reset_controller completion.
Signed-off-by: Tejun Heo <htejun@gmail.com>
--
Jeff, delay is reduced to 1us and cnt increased to 10k. My sil3124
turns on PORT_CS_RDY on the second iteration even without any delay.
I think 10k * 1us should be more than enough.
I tried to convert both restart and reset to use msleep's with work
queue, but if we do that, host_set lock should be released after
initiating restart or reset, leading to race condition among
reset/restart, other interrupts and timeout. Implementing
synchronization among those in low-level driver doesn't seem right.
Well, reduced timeout should work for the time being.
Thanks.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/scsi/gvp11.c')
0 files changed, 0 insertions, 0 deletions