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| author | Dan Williams <dan.j.williams@intel.com> | 2012-01-30 21:40:45 -0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-29 15:42:51 -0600 |
| commit | 26a2e68f816ebd736a0484ca293457b280af4ef1 (patch) | |
| tree | 5fbae208c3bcda21dd1f9f918e811e07c2ce80e8 /drivers/scsi/aic94xx/aic94xx_tmf.c | |
| parent | 77c309f3cdf9e217032dfe330f5881d352bb0436 (diff) | |
| download | blackbird-op-linux-26a2e68f816ebd736a0484ca293457b280af4ef1.tar.gz blackbird-op-linux-26a2e68f816ebd736a0484ca293457b280af4ef1.zip | |
[SCSI] libsas: don't recover end devices attached to disabled phys
If userspace has decided to disable a phy the kernel should honor that
and not inadvertantly re-enable the phy via error recovery. This is
more straightforward in the sata case where link recovery (via
libata-eh) is separate from sas_task cancelling in libsas-eh. Teach
libsas to accept -ENODEV as a successful response from I_T_nexus_reset
('successful' in terms of not escalating further).
This is a more comprehensive fix then "libsas: don't recover 'gone'
devices in sas_ata_hard_reset()", as it is no longer sata-specific.
aic94xx does check the return value from sas_phy_reset() so if the phy
is disabled we proceed with clearing the I_T_nexus.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/aic94xx/aic94xx_tmf.c')
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_tmf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c index 50b914ffab94..cf9040933da6 100644 --- a/drivers/scsi/aic94xx/aic94xx_tmf.c +++ b/drivers/scsi/aic94xx/aic94xx_tmf.c @@ -192,7 +192,7 @@ int asd_I_T_nexus_reset(struct domain_device *dev) ASD_DPRINTK("sending %s reset to %s\n", reset_type ? "hard" : "soft", dev_name(&phy->dev)); res = sas_phy_reset(phy, reset_type); - if (res == TMF_RESP_FUNC_COMPLETE) { + if (res == TMF_RESP_FUNC_COMPLETE || res == -ENODEV) { /* wait for the maximum settle time */ msleep(500); /* clear all outstanding commands (keep nexus suspended) */ |
