/**
* @brief This methods finds the first device that is in STOPPED state and its
* connection_rate is still in SPINUP_HOLD(value 3).
*
* @param[in] fw_domain The framework domain object
*
* @return SCIF_SAS_REMOTE_DEVICE_T The device that is in SPINUP_HOLD or NULL.
*/
SCIF_SAS_REMOTE_DEVICE_T * scif_sas_domain_find_device_in_spinup_hold(
SCIF_SAS_DOMAIN_T * fw_domain
)
{
SCI_ABSTRACT_ELEMENT_T * current_element;
SCIF_SAS_REMOTE_DEVICE_T * current_device;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_domain),
SCIF_LOG_OBJECT_DOMAIN,
"scif_sas_domain_find_device_in_spinup_hold(0x%x) enter\n",
fw_domain
));
//search throught domain's device list to find the first sata device on spinup_hold
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 ( sci_base_state_machine_get_state(¤t_device->parent.state_machine) ==
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED
&& scic_remote_device_get_connection_rate(current_device->core_object) ==
SCI_SATA_SPINUP_HOLD )
{
return current_device;
}
}
return NULL;
}
/**
* @brief This method will fill in the SCU Task Context for a SMP request. The
* following important settings are utilized:
*
* -# task_type == SCU_TASK_TYPE_SMP. This simply indicates
* that a normal request type (i.e. non-raw frame) is being
* utilized to perform task management.
* -# control_frame == 1. This ensures that the proper endianess
* is set so that the bytes are transmitted in the right order
* for a smp request frame.
*
* @param[in] this_request This parameter specifies the smp request object
* being constructed.
*
* @return none
*/
void scu_smp_request_construct_task_context(
SCIC_SDS_REQUEST_T *this_request,
SMP_REQUEST_T *smp_request
)
{
SCI_PHYSICAL_ADDRESS physical_address;
SCIC_SDS_CONTROLLER_T *owning_controller;
SCIC_SDS_REMOTE_DEVICE_T *target_device;
SCIC_SDS_PORT_T *target_port;
SCU_TASK_CONTEXT_T *task_context;
//byte swap the smp request.
scic_word_copy_with_swap(
this_request->command_buffer,
(U32*) smp_request,
sizeof(SMP_REQUEST_T)/sizeof(U32)
);
task_context = scic_sds_request_get_task_context(this_request);
owning_controller = scic_sds_request_get_controller(this_request);
target_device = scic_sds_request_get_device(this_request);
target_port = scic_sds_request_get_port(this_request);
SCIC_LOG_TRACE((
sci_base_object_get_logger(this_request),
SCIC_LOG_OBJECT_SMP_IO_REQUEST,
"scu_smp_request_construct_task_context(0x%x) contents\n"
" reqlen=%x; function=%x;\n",
this_request,
smp_request->header.request_length,
smp_request->header.function
));
// Fill in the TC with the its required data
// 00h
task_context->priority = 0;
task_context->initiator_request = 1;
task_context->connection_rate =
scic_remote_device_get_connection_rate(target_device);
task_context->protocol_engine_index =
scic_sds_controller_get_protocol_engine_group(owning_controller);
task_context->logical_port_index =
scic_sds_port_get_index(target_port);
task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP;
task_context->abort = 0;
task_context->valid = SCU_TASK_CONTEXT_VALID;
task_context->context_type = SCU_TASK_CONTEXT_TYPE;
//04h
task_context->remote_node_index = this_request->target_device->rnc->remote_node_index;
task_context->command_code = 0;
task_context->task_type = SCU_TASK_TYPE_SMP_REQUEST;
//08h
task_context->link_layer_control = 0;
task_context->do_not_dma_ssp_good_response = 1;
task_context->strict_ordering = 0;
task_context->control_frame = 1;
task_context->timeout_enable = 0;
task_context->block_guard_enable = 0;
//0ch
task_context->address_modifier = 0;
//10h
task_context->ssp_command_iu_length = smp_request->header.request_length;
//14h
task_context->transfer_length_bytes = 0;
//18h ~ 30h, protocol specific
// since commandIU has been build by framework at this point, we just
// copy the frist DWord from command IU to this location.
memcpy((void *)(&task_context->type.smp), this_request->command_buffer, sizeof(U32) );
//40h
// "For SMP you could program it to zero. We would prefer that way so that
// done code will be consistent." - Venki
task_context->task_phase = 0;
if (this_request->was_tag_assigned_by_user)
{
// Build the task context now since we have already read the data
this_request->post_context = (
SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
| (
scic_sds_controller_get_protocol_engine_group(owning_controller)
<< SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
)
| (
scic_sds_port_get_index(target_port)
<< SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
)
| scic_sds_io_tag_get_index(this_request->io_tag)
);
}
else
{
// Build the task context now since we have already read the data
this_request->post_context = (
SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC
| (
scic_sds_controller_get_protocol_engine_group(owning_controller)
<< SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT
)
| (
scic_sds_port_get_index(target_port)
<< SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT
)
// This is not assigned because we have to wait until we get a TCi
);
}
// Copy the physical address for the command buffer to the SCU Task Context
// command buffer should not contain command header.
scic_cb_io_request_get_physical_address(
scic_sds_request_get_controller(this_request),
this_request,
((char *)(this_request->command_buffer) + sizeof(U32)),
&physical_address
);
task_context->command_iu_upper =
sci_cb_physical_address_upper(physical_address);
task_context->command_iu_lower =
sci_cb_physical_address_lower(physical_address);
//SMP response comes as UF, so no need to set response IU address.
task_context->response_iu_upper = 0;
task_context->response_iu_lower = 0;
}
