lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[SCSI] pm80xx: thermal, sas controller config and error handling update

Browse Source 
Modified thermal configuration to happen after interrupt registration
Added SAS controller configuration during initialization
Added error handling logic to handle I_T_Nexus errors and variants

[jejb: fix up tabs and spaces issues]
Signed-off-by: Anand Kumar S <AnandKumar.Santhanam@pmcs.com>
Acked-by: Jack Wang <jack_wang@usish.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Sakthivel K
2013-03-19 18:08:40 +05:30
committed by James Bottomley
parent c6b9ef5779
commit a6cb3d012b
6 changed files with 249 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/scsi/pm8001/pm8001_sas.c
View File

@@ -1018,6 +1018,72 @@ int pm8001_I_T_nexus_reset(struct domain_device *dev)
return rc;
}
/*
* This function handle the IT_NEXUS_XXX event or completion
* status code for SSP/SATA/SMP I/O request.
*/
int pm8001_I_T_nexus_event_handler(struct domain_device *dev)
{
int rc = TMF_RESP_FUNC_FAILED;
struct pm8001_device *pm8001_dev;
struct pm8001_hba_info *pm8001_ha;
struct sas_phy *phy;
u32 device_id = 0;
if (!dev || !dev->lldd_dev)
return -1;
pm8001_dev = dev->lldd_dev;
device_id = pm8001_dev->device_id;
pm8001_ha = pm8001_find_ha_by_dev(dev);
PM8001_EH_DBG(pm8001_ha,
pm8001_printk("I_T_Nexus handler invoked !!"));
phy = sas_get_local_phy(dev);
if (dev_is_sata(dev)) {
DECLARE_COMPLETION_ONSTACK(completion_setstate);
if (scsi_is_sas_phy_local(phy)) {
rc = 0;
goto out;
}
/* send internal ssp/sata/smp abort command to FW */
rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev ,
dev, 1, 0);
msleep(100);
/* deregister the target device */
pm8001_dev_gone_notify(dev);
msleep(200);
/*send phy reset to hard reset target */
rc = sas_phy_reset(phy, 1);
msleep(2000);
pm8001_dev->setds_completion = &completion_setstate;
wait_for_completion(&completion_setstate);
} else {
/* send internal ssp/sata/smp abort command to FW */
rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev ,
dev, 1, 0);
msleep(100);
/* deregister the target device */
pm8001_dev_gone_notify(dev);
msleep(200);
/*send phy reset to hard reset target */
rc = sas_phy_reset(phy, 1);
msleep(2000);
}
PM8001_EH_DBG(pm8001_ha, pm8001_printk(" for device[%x]:rc=%d\n",
pm8001_dev->device_id, rc));
out:
sas_put_local_phy(phy);
return rc;
}
/* mandatory SAM-3, the task reset the specified LUN*/
int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
{