suspend_type, NULL, NULL);
}
-/**
- *
- * @sci_dev: The remote device for which the event handling is being
- * requested.
- * @frame_index: This is the frame index that is being processed.
- *
- * This method invokes the frame handler for the remote device state machine
- * enum sci_status
- */
-enum sci_status scic_sds_remote_device_frame_handler(
- struct scic_sds_remote_device *sci_dev,
- u32 frame_index)
+enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_device *sci_dev,
+ u32 frame_index)
{
- return sci_dev->state_handlers->frame_handler(sci_dev, frame_index);
+ struct sci_base_state_machine *sm = &sci_dev->state_machine;
+ enum scic_sds_remote_device_states state = sm->current_state_id;
+ struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller;
+ enum sci_status status;
+
+ switch (state) {
+ case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL:
+ case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED:
+ case SCI_BASE_REMOTE_DEVICE_STATE_STARTING:
+ case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
+ case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE:
+ case SCI_BASE_REMOTE_DEVICE_STATE_FINAL:
+ default:
+ dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
+ __func__, state);
+ /* Return the frame back to the controller */
+ scic_sds_controller_release_frame(scic, frame_index);
+ return SCI_FAILURE_INVALID_STATE;
+ case SCI_BASE_REMOTE_DEVICE_STATE_READY:
+ case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR:
+ case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET:
+ case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING:
+ case SCI_BASE_REMOTE_DEVICE_STATE_FAILED:
+ case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: {
+ struct scic_sds_request *sci_req;
+ struct sci_ssp_frame_header *hdr;
+
+ status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control,
+ frame_index,
+ (void **)&hdr);
+ if (status != SCI_SUCCESS)
+ return status;
+
+ sci_req = scic_sds_controller_get_io_request_from_tag(scic, hdr->tag);
+ if (sci_req && sci_req->target_device == sci_dev) {
+ /* The IO request is now in charge of releasing the frame */
+ status = sci_req->state_handlers->frame_handler(sci_req,
+ frame_index);
+ } else {
+ /* We could not map this tag to a valid IO
+ * request Just toss the frame and continue
+ */
+ scic_sds_controller_release_frame(scic, frame_index);
+ }
+ break;
+ }
+ case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: {
+ struct sata_fis_header *hdr;
+
+ status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control,
+ frame_index,
+ (void **)&hdr);
+ if (status != SCI_SUCCESS)
+ return status;
+
+ if (hdr->fis_type == SATA_FIS_TYPE_SETDEVBITS &&
+ (hdr->status & ATA_STATUS_REG_ERROR_BIT)) {
+ sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED;
+
+ /* TODO Check sactive and complete associated IO if any. */
+ sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR);
+ } else if (hdr->fis_type == SATA_FIS_TYPE_REGD2H &&
+ (hdr->status & ATA_STATUS_REG_ERROR_BIT)) {
+ /*
+ * Some devices return D2H FIS when an NCQ error is detected.
+ * Treat this like an SDB error FIS ready reason.
+ */
+ sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED;
+ sci_base_state_machine_change_state(&sci_dev->state_machine,
+ SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR);
+ } else
+ status = SCI_FAILURE;
+
+ scic_sds_controller_release_frame(scic, frame_index);
+ break;
+ }
+ case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
+ case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD:
+ /* The device does not process any UF received from the hardware while
+ * in this state. All unsolicited frames are forwarded to the io request
+ * object.
+ */
+ status = scic_sds_io_request_frame_handler(sci_dev->working_request, frame_index);
+ break;
+ }
+
+ return status;
}
static bool is_remote_device_ready(struct scic_sds_remote_device *sci_dev)
SCI_BASE_REMOTE_DEVICE_STATE_READY);
}
-/**
- *
- * @device: The struct scic_sds_remote_device which is then cast into a
- * struct scic_sds_remote_device.
- * @frame_index: The frame index for which the struct scic_sds_controller wants this
- * device object to process.
- *
- * This method is the default unsolicited frame handler. It logs a warning,
- * releases the frame and returns a failure. enum sci_status
- * SCI_FAILURE_INVALID_STATE
- */
-static enum sci_status scic_sds_remote_device_default_frame_handler(
- struct scic_sds_remote_device *sci_dev,
- u32 frame_index)
-{
- dev_warn(scirdev_to_dev(sci_dev),
- "%s: SCIC Remote Device requested to handle frame %x "
- "while in wrong state %d\n",
- __func__,
- frame_index,
- sci_base_state_machine_get_state(
- &sci_dev->state_machine));
-
- /* Return the frame back to the controller */
- scic_sds_controller_release_frame(
- scic_sds_remote_device_get_controller(sci_dev), frame_index
- );
-
- return SCI_FAILURE_INVALID_STATE;
-}
-
-/**
- *
- * @device: The struct scic_sds_remote_device which is then cast into a
- * struct scic_sds_remote_device.
- * @frame_index: The frame index for which the struct scic_sds_controller wants this
- * device object to process.
- *
- * This method is a general ssp frame handler. In most cases the device object
- * needs to route the unsolicited frame processing to the io request object.
- * This method decodes the tag for the io request object and routes the
- * unsolicited frame to that object. enum sci_status SCI_FAILURE_INVALID_STATE
- */
-static enum sci_status scic_sds_remote_device_general_frame_handler(
- struct scic_sds_remote_device *sci_dev,
- u32 frame_index)
-{
- enum sci_status result;
- struct sci_ssp_frame_header *frame_header;
- struct scic_sds_request *io_request;
-
- result = scic_sds_unsolicited_frame_control_get_header(
- &(scic_sds_remote_device_get_controller(sci_dev)->uf_control),
- frame_index,
- (void **)&frame_header
- );
-
- if (SCI_SUCCESS == result) {
- io_request = scic_sds_controller_get_io_request_from_tag(
- scic_sds_remote_device_get_controller(sci_dev), frame_header->tag);
-
- if ((io_request == NULL)
- || (io_request->target_device != sci_dev)) {
- /*
- * We could not map this tag to a valid IO request
- * Just toss the frame and continue */
- scic_sds_controller_release_frame(
- scic_sds_remote_device_get_controller(sci_dev), frame_index
- );
- } else {
- /* The IO request is now in charge of releasing the frame */
- result = io_request->state_handlers->frame_handler(
- io_request, frame_index);
- }
- }
-
- return result;
-}
-
-static enum sci_status scic_sds_stp_remote_device_ready_ncq_substate_frame_handler(struct scic_sds_remote_device *sci_dev,
- u32 frame_index)
-{
- enum sci_status status;
- struct sata_fis_header *frame_header;
- struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller;
-
- status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control,
- frame_index,
- (void **)&frame_header);
- if (status != SCI_SUCCESS)
- return status;
-
- if (frame_header->fis_type == SATA_FIS_TYPE_SETDEVBITS &&
- (frame_header->status & ATA_STATUS_REG_ERROR_BIT)) {
- sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED;
-
- /* TODO Check sactive and complete associated IO if any. */
-
- sci_base_state_machine_change_state(&sci_dev->state_machine,
- SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR);
- } else if (frame_header->fis_type == SATA_FIS_TYPE_REGD2H &&
- (frame_header->status & ATA_STATUS_REG_ERROR_BIT)) {
- /*
- * Some devices return D2H FIS when an NCQ error is detected.
- * Treat this like an SDB error FIS ready reason.
- */
- sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED;
-
- sci_base_state_machine_change_state(&sci_dev->state_machine,
- SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR);
- } else
- status = SCI_FAILURE;
-
- scic_sds_controller_release_frame(scic, frame_index);
-
- return status;
-}
-
-static enum sci_status scic_sds_stp_remote_device_ready_cmd_substate_frame_handler(
- struct scic_sds_remote_device *sci_dev,
- u32 frame_index)
-{
- /* The device doe not process any UF received from the hardware while
- * in this state. All unsolicited frames are forwarded to the io
- * request object.
- */
- return scic_sds_io_request_frame_handler(sci_dev->working_request,
- frame_index);
-}
-
static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *_dev)
{
struct scic_sds_remote_device *sci_dev = _dev;
isci_remote_device_ready(scic->ihost, idev);
}
-static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_frame_handler(
- struct scic_sds_remote_device *sci_dev,
- u32 frame_index)
-{
- enum sci_status status;
-
- /* The device does not process any UF received from the hardware while
- * in this state. All unsolicited frames are forwarded to the io request
- * object.
- */
- status = scic_sds_io_request_frame_handler(
- sci_dev->working_request,
- frame_index
- );
-
- return status;
-}
-
static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_handler_table[] = {
[SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = {
- .frame_handler = scic_sds_remote_device_default_frame_handler
},
[SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = {
- .frame_handler = scic_sds_remote_device_default_frame_handler
},
[SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = {
- .frame_handler = scic_sds_remote_device_default_frame_handler
},
[SCI_BASE_REMOTE_DEVICE_STATE_READY] = {
- .frame_handler = scic_sds_remote_device_general_frame_handler,
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
- .frame_handler = scic_sds_remote_device_default_frame_handler
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
- .frame_handler = scic_sds_stp_remote_device_ready_cmd_substate_frame_handler
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = {
- .frame_handler = scic_sds_stp_remote_device_ready_ncq_substate_frame_handler
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = {
- .frame_handler = scic_sds_remote_device_general_frame_handler
},
[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = {
- .frame_handler = scic_sds_remote_device_general_frame_handler
},
[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
- .frame_handler = scic_sds_remote_device_default_frame_handler
},
[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
- .frame_handler = scic_sds_smp_remote_device_ready_cmd_substate_frame_handler
},
[SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = {
- .frame_handler = scic_sds_remote_device_general_frame_handler
},
[SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = {
- .frame_handler = scic_sds_remote_device_general_frame_handler
},
[SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = {
- .frame_handler = scic_sds_remote_device_general_frame_handler
},
[SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = {
- .frame_handler = scic_sds_remote_device_default_frame_handler
}
};
projects / linux-2.6-microblaze.git / commitdiff