/**
* @brief This method remove an expander device and its child devices, in order to
* deal with a detected illeagal phy connection.
*
* @param[in] fw_domain The domain that a expander belongs to.
* @param[in] fw_device The expander device to be removed.
*
* @return none.
*/
void scif_sas_domain_remove_expander_device(
SCIF_SAS_DOMAIN_T * fw_domain,
SCIF_SAS_REMOTE_DEVICE_T * fw_device
)
{
SCIF_SAS_SMP_REMOTE_DEVICE_T * smp_remote_device =
&fw_device->protocol_device.smp_device;
SCI_FAST_LIST_ELEMENT_T * element = smp_remote_device->smp_phy_list.list_head;
SCIF_SAS_SMP_PHY_T * curr_smp_phy = NULL;
SCIF_SAS_REMOTE_DEVICE_T * current_device = NULL;
while (element != NULL)
{
curr_smp_phy = (SCIF_SAS_SMP_PHY_T*) sci_fast_list_get_object(element);
element = sci_fast_list_get_next(element);
if ( curr_smp_phy->attached_device_type != SMP_NO_DEVICE_ATTACHED
&& curr_smp_phy->u.end_device != NULL )
{
if (curr_smp_phy->attached_device_type == SMP_END_DEVICE_ONLY)
current_device = curr_smp_phy->u.end_device;
else
current_device = curr_smp_phy->u.attached_phy->owning_device;
scif_cb_domain_device_removed(fw_domain->controller, fw_domain, current_device);
}
}
//remove device itself
scif_cb_domain_device_removed(fw_domain->controller, fw_domain, fw_device);
}
/**
* @brief This method finishes domain's smp discover process and
* update domain's remote device list.
*
* @param[in] fw_domain The framework domain that's to finish smp discover process.
*
* @return None
*/
void scif_sas_domain_finish_discover(
SCIF_SAS_DOMAIN_T * fw_domain
)
{
SCIF_SAS_REMOTE_DEVICE_T * current_device = NULL;
SCI_ABSTRACT_ELEMENT_T * current_element = NULL;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_domain),
SCIF_LOG_OBJECT_DOMAIN | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"scif_sas_domain_finish_discover(0x%x) enter\n",
fw_domain
));
//need to scrub all the devices behind the expander. Check each
//device's discover_status. if the is_currently_discovered is FALSE, means
//the device is not been rediscovered. this device needs to be removed.
current_element = sci_abstract_list_get_front(&fw_domain->remote_device_list);
while (current_element != NULL )
{
current_device = (SCIF_SAS_REMOTE_DEVICE_T *)
sci_abstract_list_get_object(current_element);
//We must get the next element before we remove the current
//device. Or else, we will get wrong next_element, since the erased
//element has been put into free pool.
current_element = sci_abstract_list_get_next(current_element);
if ( current_device->is_currently_discovered == FALSE )
{
// Notify the framework user of the device removal.
scif_cb_domain_device_removed(
fw_domain->controller, fw_domain, current_device
);
}
}
sci_base_state_machine_change_state(
&fw_domain->parent.state_machine, SCI_BASE_DOMAIN_STATE_READY
);
}
void
isci_task_request_complete(SCI_CONTROLLER_HANDLE_T scif_controller,
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_TASK_REQUEST_HANDLE_T task_request, SCI_TASK_STATUS completion_status)
{
struct ISCI_TASK_REQUEST *isci_task_request =
(struct ISCI_TASK_REQUEST *)sci_object_get_association(task_request);
struct ISCI_CONTROLLER *isci_controller =
(struct ISCI_CONTROLLER *)sci_object_get_association(scif_controller);
struct ISCI_REMOTE_DEVICE *isci_remote_device =
(struct ISCI_REMOTE_DEVICE *)sci_object_get_association(remote_device);
struct ISCI_REMOTE_DEVICE *pending_remote_device;
BOOL retry_task = FALSE;
union ccb *ccb = isci_task_request->ccb;
isci_remote_device->is_resetting = FALSE;
switch ((int)completion_status) {
case SCI_TASK_SUCCESS:
case SCI_TASK_FAILURE_RESPONSE_VALID:
break;
case SCI_TASK_FAILURE_INVALID_STATE:
retry_task = TRUE;
isci_log_message(0, "ISCI",
"task failure (invalid state) - retrying\n");
break;
case SCI_TASK_FAILURE_INSUFFICIENT_RESOURCES:
retry_task = TRUE;
isci_log_message(0, "ISCI",
"task failure (insufficient resources) - retrying\n");
break;
case SCI_FAILURE_TIMEOUT:
if (isci_controller->fail_on_task_timeout) {
retry_task = FALSE;
isci_log_message(0, "ISCI",
"task timeout - not retrying\n");
scif_cb_domain_device_removed(isci_controller,
isci_remote_device->domain, isci_remote_device);
} else {
retry_task = TRUE;
isci_log_message(0, "ISCI",
"task timeout - retrying\n");
}
break;
case SCI_TASK_FAILURE:
case SCI_TASK_FAILURE_UNSUPPORTED_PROTOCOL:
case SCI_TASK_FAILURE_INVALID_TAG:
case SCI_TASK_FAILURE_CONTROLLER_SPECIFIC_ERR:
case SCI_TASK_FAILURE_TERMINATED:
case SCI_TASK_FAILURE_INVALID_PARAMETER_VALUE:
isci_log_message(0, "ISCI",
"unhandled task completion code 0x%x\n", completion_status);
break;
default:
isci_log_message(0, "ISCI",
"unhandled task completion code 0x%x\n", completion_status);
break;
}
if (isci_controller->is_frozen == TRUE) {
isci_controller->is_frozen = FALSE;
xpt_release_simq(isci_controller->sim, TRUE);
}
sci_pool_put(isci_controller->request_pool,
(struct ISCI_REQUEST *)isci_task_request);
/* Make sure we release the device queue, since it may have been frozen
* if someone tried to start an I/O while the task was in progress.
*/
isci_remote_device_release_device_queue(isci_remote_device);
if (retry_task == TRUE)
isci_remote_device_reset(isci_remote_device, ccb);
else {
pending_remote_device = sci_fast_list_remove_head(
&isci_controller->pending_device_reset_list);
if (pending_remote_device != NULL) {
/* Any resets that were triggered from an XPT_RESET_DEV
* CCB are never put in the pending list if the request
* pool is empty - they are given back to CAM to be
* requeued. So we will alawys pass NULL here,
* denoting that there is no CCB associated with the
* device reset.
*/
isci_remote_device_reset(pending_remote_device, NULL);
} else if (ccb != NULL) {
/* There was a CCB associated with this reset, so mark
* it complete and return it to CAM.
*/
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_REQ_CMP;
xpt_done(ccb);
}
}
}
/**
* @brief This method implements the actions taken when entering the
* DISCOVERING state. This includes determining from which
* state we entered. If we entered from stopping that some sort
* of hot-remove of the port occurred. In the hot-remove case
* all devices should be in the STOPPED state already and, as
* a result, are removed from the domain with a notification sent
* to the framework user.
*
* @note This method currently only handles hot-insert/hot-remove of
* direct attached SSP devices.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_DOMAIN object in the method implementation.
*
* @return none
*/
static
void scif_sas_domain_discovering_state_enter(
SCI_BASE_OBJECT_T * object
)
{
SCIF_SAS_DOMAIN_T * fw_domain = (SCIF_SAS_DOMAIN_T *)object;
SET_STATE_HANDLER(
fw_domain,
scif_sas_domain_state_handler_table,
SCI_BASE_DOMAIN_STATE_DISCOVERING
);
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_domain),
SCIF_LOG_OBJECT_DOMAIN | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"scif_sas_domain_discovering_state_enter(0x%x) enter\n",
fw_domain
));
fw_domain->broadcast_change_count = 0;
// Did the domain just go through a port not ready action? If it did,
// then we will be entering from the STOPPED state.
if (fw_domain->parent.state_machine.previous_state_id
!= SCI_BASE_DOMAIN_STATE_STOPPED)
{
SCIF_SAS_REMOTE_DEVICE_T * remote_device;
SCIC_PORT_PROPERTIES_T properties;
scic_port_get_properties(fw_domain->core_object, &properties);
// If the device has not yet been added to the domain, then
// inform the user that the device is new.
remote_device = (SCIF_SAS_REMOTE_DEVICE_T *)
scif_domain_get_device_by_sas_address(
fw_domain, &properties.remote.sas_address
);
if (remote_device == SCI_INVALID_HANDLE)
{
// simply notify the user of the new DA device and be done
// with discovery.
scif_cb_domain_da_device_added(
fw_domain->controller,
fw_domain,
&properties.remote.sas_address,
&properties.remote.protocols
);
}
else
{
if(properties.remote.protocols.u.bits.smp_target)
//kick off the smp discover process.
scif_sas_domain_start_smp_discover(fw_domain, remote_device);
}
}
else //entered from STOPPED state.
{
SCI_ABSTRACT_ELEMENT_T * current_element =
sci_abstract_list_get_front(&(fw_domain->remote_device_list) );
SCIF_SAS_REMOTE_DEVICE_T * fw_device;
while (current_element != NULL)
{
fw_device = (SCIF_SAS_REMOTE_DEVICE_T *)
sci_abstract_list_get_object(current_element);
ASSERT(fw_device->parent.state_machine.current_state_id
== SCI_BASE_REMOTE_DEVICE_STATE_STOPPED);
current_element =
sci_abstract_list_get_next(current_element);
SCIF_LOG_INFO((
sci_base_object_get_logger(fw_domain),
SCIF_LOG_OBJECT_DOMAIN | SCIF_LOG_OBJECT_DOMAIN_DISCOVERY,
"Controller:0x%x Domain:0x%x Device:0x%x removed\n",
fw_domain->controller, fw_domain, fw_device
));
// Notify the framework user of the device removal.
scif_cb_domain_device_removed(
fw_domain->controller, fw_domain, fw_device
);
}
ASSERT(fw_domain->request_list.element_count == 0);
ASSERT(sci_abstract_list_size(&fw_domain->remote_device_list) == 0);
sci_base_state_machine_change_state(
&fw_domain->parent.state_machine, SCI_BASE_DOMAIN_STATE_STARTING
);
}
}
