xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[SCSI] isci: Fix task management for SMP, SATA and on dev remove.

Browse Source 
libsas uses the LLDD abort task interface to handle I/O timeouts
in the SATA/STP and SMP discovery paths, so this change will terminate
STP/SMP requests. Also, if the device is gone, the lldd will prevent
libsas from further escalations in the error handler.

Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Jeff Skirvin
2011-10-27 15:05:16 -07:00
committed by James Bottomley
parent db49c2d037
commit 98145cb722
4 changed files with 69 additions and 186 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
drivers/scsi/isci/remote_device.c
View File

@@ -1438,53 +1438,6 @@ int isci_remote_device_found(struct domain_device *domain_dev)
return status == SCI_SUCCESS ? 0 : -ENODEV;
}
/**
* isci_device_is_reset_pending() - This function will check if there is any
* pending reset condition on the device.
* @request: This parameter is the isci_device object.
*
* true if there is a reset pending for the device.
*/
bool isci_device_is_reset_pending(
struct isci_host *isci_host,
struct isci_remote_device *isci_device)
{
struct isci_request *isci_request;
struct isci_request *tmp_req;
bool reset_is_pending = false;
unsigned long flags;
dev_dbg(&isci_host->pdev->dev,
"%s: isci_device = %p\n", __func__, isci_device);
spin_lock_irqsave(&isci_host->scic_lock, flags);
/* Check for reset on all pending requests. */
list_for_each_entry_safe(isci_request, tmp_req,
&isci_device->reqs_in_process, dev_node) {
dev_dbg(&isci_host->pdev->dev,
"%s: isci_device = %p request = %p\n",
__func__, isci_device, isci_request);
if (isci_request->ttype == io_task) {
struct sas_task *task = isci_request_access_task(
isci_request);
spin_lock(&task->task_state_lock);
if (task->task_state_flags & SAS_TASK_NEED_DEV_RESET)
reset_is_pending = true;
spin_unlock(&task->task_state_lock);
}
}
spin_unlock_irqrestore(&isci_host->scic_lock, flags);
dev_dbg(&isci_host->pdev->dev,
"%s: isci_device = %p reset_is_pending = %d\n",
__func__, isci_device, reset_is_pending);
return reset_is_pending;
}
/**
* isci_device_clear_reset_pending() - This function will clear if any pending