diff options
| author |   Jeff Skirvin <jeffrey.d.skirvin@intel.com> | 2012-03-08 22:42:00 -0800 |
|---|---|---|
| committer |   Dan Williams <dan.j.williams@intel.com> | 2012-05-17 14:33:40 -0700 |
| commit | 9608b6408e637abeec101abb6aebd3343f0ebac4 (patch) | |
| tree | 4c06b2ed04c61c2e76dd7d663a54b7cc1ae0717f /drivers/scsi/isci/remote_device.c | |
| parent | isci: Save the suspension hint for upcoming suspensions. (diff) | |
| download | linux-dev-9608b6408e637abeec101abb6aebd3343f0ebac4.tar.xz linux-dev-9608b6408e637abeec101abb6aebd3343f0ebac4.zip | |
isci: Manage the LLHANG timer enable/disable per-device.
The LLHANG timer should be enabled once per device. This patch corrects
both the timer enable and the timer disable for the remote device.
Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci/remote_device.c')
| -rw-r--r-- | drivers/scsi/isci/remote_device.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 1a85e9edef6a..86aca11120f3 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -1520,3 +1520,20 @@ enum sci_status isci_remote_device_reset_complete( return status; } +void isci_dev_set_hang_detection_timeout( + struct isci_remote_device *idev, + u32 timeout) +{ + if (dev_is_sata(idev->domain_dev)) { + if (timeout) { + if (test_and_set_bit(IDEV_RNC_LLHANG_ENABLED, + &idev->flags)) + return; /* Already enabled. */ + } else if (!test_and_clear_bit(IDEV_RNC_LLHANG_ENABLED, + &idev->flags)) + return; /* Not enabled. */ + + sci_port_set_hang_detection_timeout(idev->owning_port, + timeout); + } +} |