/**
* @brief This method processes the completions transport layer (TL) status
* to determine if the SMP request was sent successfully. If the SMP
* request was sent successfully, then the state for the SMP request
* transits to waiting for a response frame.
*
* @param[in] this_request This parameter specifies the request for which
* the TC completion was received.
* @param[in] completion_code This parameter indicates the completion status
* information for the TC.
*
* @return Indicate if the tc completion handler was successful.
* @retval SCI_SUCCESS currently this method always returns success.
*/
static
SCI_STATUS scic_sds_smp_request_await_tc_completion_tc_completion_handler(
SCIC_SDS_REQUEST_T * this_request,
U32 completion_code
)
{
SCIC_LOG_TRACE((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
"scic_sds_smp_request_await_tc_completion_tc_completion_handler(0x%x, 0x%x) enter\n",
this_request, completion_code
));
switch (SCU_GET_COMPLETION_TL_STATUS(completion_code))
{
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
scic_sds_request_set_status(
this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS
);
sci_base_state_machine_change_state(
&this_request->parent.state_machine,
SCI_BASE_REQUEST_STATE_COMPLETED
);
break;
default:
// All other completion status cause the IO to be complete. If a NAK
// was received, then it is up to the user to retry the request.
scic_sds_request_set_status(
this_request,
SCU_NORMALIZE_COMPLETION_STATUS(completion_code),
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
);
sci_base_state_machine_change_state(
&this_request->parent.state_machine,
SCI_BASE_REQUEST_STATE_COMPLETED
);
break;
}
return SCI_SUCCESS;
}
/**
* @brief This method processes the completions transport layer (TL) status
* to determine if the RAW task management frame was sent successfully.
* If the raw frame was sent successfully, then the state for the
* task request transitions to waiting for a response frame.
*
* @param[in] this_request This parameter specifies the request for which
* the TC completion was received.
* @param[in] completion_code This parameter indicates the completion status
* information for the TC.
*
* @return Indicate if the tc completion handler was successful.
* @retval SCI_SUCCESS currently this method always returns success.
*/
static
SCI_STATUS scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler(
SCIC_SDS_REQUEST_T * this_request,
U32 completion_code
)
{
SCIC_LOG_TRACE((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_TASK_MANAGEMENT,
"scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler(0x%x, 0x%x) enter\n",
this_request, completion_code
));
switch (SCU_GET_COMPLETION_TL_STATUS(completion_code))
{
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
scic_sds_request_set_status(
this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS
);
sci_base_state_machine_change_state(
&this_request->started_substate_machine,
SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE
);
break;
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO):
// Currently, the decision is to simply allow the task request to
// timeout if the task IU wasn't received successfully.
// There is a potential for receiving multiple task responses if we
// decide to send the task IU again.
SCIC_LOG_WARNING((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_TASK_MANAGEMENT,
"TaskRequest:0x%x CompletionCode:%x - ACK/NAK timeout\n",
this_request, completion_code
));
sci_base_state_machine_change_state(
&this_request->started_substate_machine,
SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE
);
break;
default:
// All other completion status cause the IO to be complete. If a NAK
// was received, then it is up to the user to retry the request.
scic_sds_request_set_status(
this_request,
SCU_NORMALIZE_COMPLETION_STATUS(completion_code),
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
);
sci_base_state_machine_change_state(
&this_request->parent.state_machine,
SCI_BASE_REQUEST_STATE_COMPLETED
);
break;
}
return SCI_SUCCESS;
}
/**
* @brief This method processes an abnormal TC completion while the SMP
* request is waiting for a response frame. It decides what
* happened to the IO based on TC completion status.
*
* @param[in] this_request This parameter specifies the request for which
* the TC completion was received.
* @param[in] completion_code This parameter indicates the completion status
* information for the TC.
*
* @return Indicate if the tc completion handler was successful.
* @retval SCI_SUCCESS currently this method always returns success.
*/
static
SCI_STATUS scic_sds_smp_request_await_response_tc_completion_handler(
SCIC_SDS_REQUEST_T * this_request,
U32 completion_code
)
{
SCIC_LOG_TRACE((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
"scic_sds_smp_request_await_response_tc_completion_handler(0x%x, 0x%x) enter\n",
this_request, completion_code
));
switch (SCU_GET_COMPLETION_TL_STATUS(completion_code))
{
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
//In the AWAIT RESPONSE state, any TC completion is unexpected.
//but if the TC has success status, we complete the IO anyway.
scic_sds_request_set_status(
this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS
);
sci_base_state_machine_change_state(
&this_request->parent.state_machine,
SCI_BASE_REQUEST_STATE_COMPLETED
);
break;
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_RESP_TO_ERR):
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_UFI_ERR):
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_FRM_TYPE_ERR):
case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_LL_RX_ERR):
//These status has been seen in a specific LSI expander, which sometimes
//is not able to send smp response within 2 ms. This causes our hardware
//break the connection and set TC completion with one of these SMP_XXX_XX_ERR
//status. For these type of error, we ask scic user to retry the request.
scic_sds_request_set_status(
this_request, SCU_TASK_DONE_SMP_RESP_TO_ERR, SCI_FAILURE_RETRY_REQUIRED
);
sci_base_state_machine_change_state(
&this_request->parent.state_machine,
SCI_BASE_REQUEST_STATE_COMPLETED
);
break;
default:
// All other completion status cause the IO to be complete. If a NAK
// was received, then it is up to the user to retry the request.
scic_sds_request_set_status(
this_request,
SCU_NORMALIZE_COMPLETION_STATUS(completion_code),
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
);
sci_base_state_machine_change_state(
&this_request->parent.state_machine,
SCI_BASE_REQUEST_STATE_COMPLETED
);
break;
}
return SCI_SUCCESS;
}
/**
* @brief This method processes an unsolicited frame while the SMP request is
* waiting for a response frame. It will copy the response data, release
* the unsolicited frame, and transition the request to the
* SCI_BASE_REQUEST_STATE_COMPLETED state.
*
* @param[in] this_request This parameter specifies the request for which
* the unsolicited frame was received.
* @param[in] frame_index This parameter indicates the unsolicited frame
* index that should contain the response.
*
* @return This method returns an indication of whether the response
* frame was handled successfully or not.
* @retval SCI_SUCCESS Currently this value is always returned and indicates
* successful processing of the TC response.
*/
static
SCI_STATUS scic_sds_smp_request_await_response_frame_handler(
SCIC_SDS_REQUEST_T * this_request,
U32 frame_index
)
{
SCI_STATUS status;
void * frame_header;
SMP_RESPONSE_HEADER_T * this_frame_header;
U8 * user_smp_buffer = this_request->response_buffer;
// Save off the controller, so that we do not touch the request after it
// is completed.
SCIC_SDS_CONTROLLER_T * controller = scic_sds_request_get_controller(this_request);
SCIC_LOG_TRACE((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
"scic_sds_smp_request_await_response_frame_handler(0x%x, 0x%x) enter\n",
this_request, frame_index
));
status = scic_sds_unsolicited_frame_control_get_header(
&(controller->uf_control),
frame_index,
&frame_header
);
//byte swap the header.
scic_word_copy_with_swap(
(U32*) user_smp_buffer,
frame_header,
sizeof(SMP_RESPONSE_HEADER_T)/sizeof(U32)
);
this_frame_header = (SMP_RESPONSE_HEADER_T*) user_smp_buffer;
if (this_frame_header->smp_frame_type == SMP_FRAME_TYPE_RESPONSE)
{
void * smp_response_buffer;
status = scic_sds_unsolicited_frame_control_get_buffer(
&(controller->uf_control),
frame_index,
&smp_response_buffer
);
scic_word_copy_with_swap(
(U32*) (user_smp_buffer + sizeof(SMP_RESPONSE_HEADER_T)),
smp_response_buffer,
sizeof(SMP_RESPONSE_BODY_T)/sizeof(U32)
);
if (this_frame_header->function == SMP_FUNCTION_DISCOVER)
{
SMP_RESPONSE_T * this_smp_response;
this_smp_response = (SMP_RESPONSE_T *)user_smp_buffer;
// Some expanders only report an attached SATA device, and
// not an STP target. Since the core depends on the STP
// target attribute to correctly build I/O, set the bit now
// if necessary.
if (this_smp_response->response.discover.protocols.u.bits.attached_sata_device
&& !this_smp_response->response.discover.protocols.u.bits.attached_stp_target)
{
this_smp_response->response.discover.protocols.u.bits.attached_stp_target = 1;
SCIC_LOG_TRACE((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
"scic_sds_smp_request_await_response_frame_handler(0x%x) Found SATA dev, setting STP bit.\n",
this_request
));
}
}
//Don't need to copy to user space. User instead will refer to
//core request's response buffer.
//copy the smp response to framework smp request's response buffer.
//scic_sds_smp_request_copy_response(this_request);
scic_sds_request_set_status(
this_request, SCU_TASK_DONE_GOOD, SCI_SUCCESS
);
sci_base_state_machine_change_state(
&this_request->started_substate_machine,
SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION
);
}
else
{
// This was not a response frame why did it get forwarded?
SCIC_LOG_ERROR((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
"SCIC SMP Request 0x%08x received unexpected frame %d type 0x%02x\n",
this_request, frame_index, this_frame_header->smp_frame_type
));
scic_sds_request_set_status(
this_request,
SCU_TASK_DONE_SMP_FRM_TYPE_ERR,
SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
);
sci_base_state_machine_change_state(
&this_request->parent.state_machine,
SCI_BASE_REQUEST_STATE_COMPLETED
);
}
scic_sds_controller_release_frame(
controller, frame_index
);
return SCI_SUCCESS;
}
