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isci: Distinguish between remote device suspension cases

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For NCQ error conditions among others, there is no need to enable
the link layer hang detect timer.

Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Jeff Skirvin
2012-03-08 22:41:58 -08:00
committed by Dan Williams
parent d6b2a0e4a0
commit c94fc1ad25
4 changed files with 28 additions and 25 deletions
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27
drivers/scsi/isci/remote_device.c
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@@ -72,10 +72,11 @@ const char *dev_state_name(enum sci_remote_device_states state)
}
#undef C
static enum sci_status sci_remote_device_suspend(struct isci_remote_device *idev)
static enum sci_status sci_remote_device_suspend(struct isci_remote_device *idev,
enum sci_remote_node_suspension_reasons reason)
{
return sci_remote_node_context_suspend(&idev->rnc,
SCI_SOFTWARE_SUSPENSION,
reason,
SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT,
NULL, NULL);
}
@@ -199,7 +200,7 @@ static void isci_remote_device_not_ready(struct isci_host *ihost,
set_bit(IDEV_IO_NCQERROR, &idev->flags);
/* Suspend the remote device so the I/O can be terminated. */
sci_remote_device_suspend(idev);
sci_remote_device_suspend(idev, SCI_SW_SUSPEND_NORMAL);
/* Kill all outstanding requests for the device. */
sci_remote_device_terminate_requests(idev);
@@ -268,7 +269,8 @@ enum sci_status sci_remote_device_stop(struct isci_remote_device *idev,
rnc_destruct_done,
idev);
else {
sci_remote_device_suspend(idev);
sci_remote_device_suspend(
idev, SCI_SW_SUSPEND_LINKHANG_DETECT);
sci_remote_device_terminate_requests(idev);
}
return SCI_SUCCESS;
@@ -473,11 +475,7 @@ enum sci_status sci_remote_device_event_handler(struct isci_remote_device *idev,
status = SCI_SUCCESS;
/* Suspend the associated RNC */
sci_remote_node_context_suspend(
&idev->rnc,
SCI_SOFTWARE_SUSPENSION,
SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT,
NULL, NULL);
sci_remote_device_suspend(idev, SCI_SW_SUSPEND_NORMAL);
dev_dbg(scirdev_to_dev(idev),
"%s: device: %p event code: %x: %s\n",
@@ -789,9 +787,8 @@ enum sci_status sci_remote_device_start_task(struct isci_host *ihost,
* the correct action when the remote node context is suspended
* and later resumed.
*/
sci_remote_node_context_suspend(
&idev->rnc, SCI_SOFTWARE_SUSPENSION,
SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT, NULL, NULL);
sci_remote_device_suspend(idev,
SCI_SW_SUSPEND_LINKHANG_DETECT);
status = sci_remote_node_context_start_task(&idev->rnc, ireq,
sci_remote_device_continue_request, idev);
@@ -986,9 +983,7 @@ static void sci_remote_device_resetting_state_enter(struct sci_base_state_machin
dev_dbg(&ihost->pdev->dev,
"%s: isci_device = %p\n", __func__, idev);
sci_remote_node_context_suspend(
&idev->rnc, SCI_SOFTWARE_SUSPENSION,
SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT, NULL, NULL);
sci_remote_device_suspend(idev, SCI_SW_SUSPEND_LINKHANG_DETECT);
}
static void sci_remote_device_resetting_state_exit(struct sci_base_state_machine *sm)
@@ -1486,7 +1481,7 @@ enum sci_status isci_remote_device_suspend_terminate(
/* Put the device into suspension. */
spin_lock_irqsave(&ihost->scic_lock, flags);
sci_remote_device_suspend(idev);
sci_remote_device_suspend(idev, SCI_SW_SUSPEND_LINKHANG_DETECT);
spin_unlock_irqrestore(&ihost->scic_lock, flags);
/* Terminate and wait for the completions. */