remote_node_table.o \
unsolicited_frame_control.o \
stp_request.o \
- ssp_request.o \
smp_request.o \
port_config.o \
* @sci_req: This parameter specifies the request object for which to copy
* the response data.
*/
-void scic_sds_io_request_copy_response(struct scic_sds_request *sci_req)
+static void scic_sds_io_request_copy_response(struct scic_sds_request *sci_req)
{
void *resp_buf;
u32 len;
sci_base_state_machine_get_state(&request->state_machine));
return SCI_FAILURE_INVALID_STATE;
-
}
/*
return SCI_SUCCESS;
}
+/**
+ * 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.
+ * @sci_req: This parameter specifies the request for which the TC
+ * completion was received.
+ * @completion_code: This parameter indicates the completion status information
+ * for the TC.
+ *
+ * Indicate if the tc completion handler was successful. SCI_SUCCESS currently
+ * this method always returns success.
+ */
+static enum sci_status scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler(
+ struct scic_sds_request *sci_req,
+ u32 completion_code)
+{
+ switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) {
+ case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
+ scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD,
+ SCI_SUCCESS);
+
+ sci_base_state_machine_change_state(&sci_req->state_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. */
+ dev_warn(scic_to_dev(sci_req->owning_controller),
+ "%s: TaskRequest:0x%p CompletionCode:%x - "
+ "ACK/NAK timeout\n",
+ __func__,
+ sci_req,
+ completion_code);
+
+ sci_base_state_machine_change_state(&sci_req->state_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(
+ sci_req,
+ SCU_NORMALIZE_COMPLETION_STATUS(completion_code),
+ SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
+ );
+
+ sci_base_state_machine_change_state(&sci_req->state_machine,
+ SCI_BASE_REQUEST_STATE_COMPLETED);
+ break;
+ }
+
+ return SCI_SUCCESS;
+}
+
+/**
+ * This method is responsible for processing a terminate/abort request for this
+ * TC while the request is waiting for the task management response
+ * unsolicited frame.
+ * @sci_req: This parameter specifies the request for which the
+ * termination was requested.
+ *
+ * This method returns an indication as to whether the abort request was
+ * successfully handled. need to update to ensure the received UF doesn't cause
+ * damage to subsequent requests (i.e. put the extended tag in a holding
+ * pattern for this particular device).
+ */
+static enum sci_status scic_sds_ssp_task_request_await_tc_response_abort_handler(
+ struct scic_sds_request *request)
+{
+ sci_base_state_machine_change_state(&request->state_machine,
+ SCI_BASE_REQUEST_STATE_ABORTING);
+ sci_base_state_machine_change_state(&request->state_machine,
+ SCI_BASE_REQUEST_STATE_COMPLETED);
+ return SCI_SUCCESS;
+}
+
+/**
+ * This method processes an unsolicited frame while the task mgmt 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.
+ * @sci_req: This parameter specifies the request for which the
+ * unsolicited frame was received.
+ * @frame_index: This parameter indicates the unsolicited frame index that
+ * should contain the response.
+ *
+ * This method returns an indication of whether the TC response frame was
+ * handled successfully or not. SCI_SUCCESS Currently this value is always
+ * returned and indicates successful processing of the TC response. Should
+ * probably update to check frame type and make sure it is a response frame.
+ */
+static enum sci_status scic_sds_ssp_task_request_await_tc_response_frame_handler(
+ struct scic_sds_request *request,
+ u32 frame_index)
+{
+ scic_sds_io_request_copy_response(request);
+
+ sci_base_state_machine_change_state(&request->state_machine,
+ SCI_BASE_REQUEST_STATE_COMPLETED);
+ scic_sds_controller_release_frame(request->owning_controller,
+ frame_index);
+ return SCI_SUCCESS;
+}
+
static const struct scic_sds_io_request_state_handler scic_sds_request_state_handler_table[] = {
- [SCI_BASE_REQUEST_STATE_INITIAL] = {
- },
+ [SCI_BASE_REQUEST_STATE_INITIAL] = { },
[SCI_BASE_REQUEST_STATE_CONSTRUCTED] = {
.start_handler = scic_sds_request_constructed_state_start_handler,
.abort_handler = scic_sds_request_constructed_state_abort_handler,
.tc_completion_handler = scic_sds_request_started_state_tc_completion_handler,
.frame_handler = scic_sds_request_started_state_frame_handler,
},
+ [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = {
+ .abort_handler = scic_sds_request_started_state_abort_handler,
+ .tc_completion_handler = scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler,
+ },
+ [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = {
+ .abort_handler = scic_sds_ssp_task_request_await_tc_response_abort_handler,
+ .frame_handler = scic_sds_ssp_task_request_await_tc_response_frame_handler,
+ },
[SCI_BASE_REQUEST_STATE_COMPLETED] = {
.complete_handler = scic_sds_request_completed_state_complete_handler,
},
.tc_completion_handler = scic_sds_request_aborting_state_tc_completion_handler,
.frame_handler = scic_sds_request_aborting_state_frame_handler,
},
- [SCI_BASE_REQUEST_STATE_FINAL] = {
- },
+ [SCI_BASE_REQUEST_STATE_FINAL] = { },
};
static void scic_sds_request_started_state_enter(void *object)
{
struct scic_sds_request *sci_req = object;
+ struct sci_base_state_machine *sm = &sci_req->state_machine;
+ struct isci_request *ireq = sci_req_to_ireq(sci_req);
+ struct domain_device *dev = sci_dev_to_domain(sci_req->target_device);
SET_STATE_HANDLER(
sci_req,
SCI_BASE_REQUEST_STATE_STARTED
);
- /*
- * Most of the request state machines have a started substate machine so
- * start its execution on the entry to the started state. */
+ if (ireq->ttype == tmf_task && dev->dev_type == SAS_END_DEV)
+ sci_base_state_machine_change_state(sm,
+ SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION);
+
+ /* Most of the request state machines have a started substate machine so
+ * start its execution on the entry to the started state.
+ */
if (sci_req->has_started_substate_machine == true)
sci_base_state_machine_start(&sci_req->started_substate_machine);
}
);
}
+static void scic_sds_io_request_started_task_mgmt_await_tc_completion_substate_enter(
+ void *object)
+{
+ struct scic_sds_request *sci_req = object;
+
+ SET_STATE_HANDLER(
+ sci_req,
+ scic_sds_request_state_handler_table,
+ SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION
+ );
+}
+
+static void scic_sds_io_request_started_task_mgmt_await_task_response_substate_enter(
+ void *object)
+{
+ struct scic_sds_request *sci_req = object;
+
+ SET_STATE_HANDLER(
+ sci_req,
+ scic_sds_request_state_handler_table,
+ SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE
+ );
+}
+
static const struct sci_base_state scic_sds_request_state_table[] = {
[SCI_BASE_REQUEST_STATE_INITIAL] = {
.enter_state = scic_sds_request_initial_state_enter,
.enter_state = scic_sds_request_started_state_enter,
.exit_state = scic_sds_request_started_state_exit
},
+ [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = {
+ .enter_state = scic_sds_io_request_started_task_mgmt_await_tc_completion_substate_enter,
+ },
+ [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = {
+ .enter_state = scic_sds_io_request_started_task_mgmt_await_task_response_substate_enter,
+ },
[SCI_BASE_REQUEST_STATE_COMPLETED] = {
.enter_state = scic_sds_request_completed_state_enter,
},
/* Build the common part of the request */
scic_sds_general_request_construct(scic, sci_dev, io_tag, sci_req);
- if (dev->dev_type == SAS_END_DEV) {
+ if (dev->dev_type == SAS_END_DEV)
scic_sds_ssp_task_request_assign_buffers(sci_req);
-
- sci_req->has_started_substate_machine = true;
-
- /* Construct the started sub-state machine. */
- sci_base_state_machine_construct(
- &sci_req->started_substate_machine,
- sci_req,
- scic_sds_io_request_started_task_mgmt_substate_table,
- SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION
- );
- } else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))
+ else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))
scic_sds_stp_request_assign_buffers(sci_req);
else
status = SCI_FAILURE_UNSUPPORTED_PROTOCOL;
*/
SCI_BASE_REQUEST_STATE_STARTED,
+ /**
+ * The AWAIT_TC_COMPLETION sub-state indicates that the started raw
+ * task management request is waiting for the transmission of the
+ * initial frame (i.e. command, task, etc.).
+ */
+ SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION,
+
+ /**
+ * This sub-state indicates that the started task management request
+ * is waiting for the reception of an unsolicited frame
+ * (i.e. response IU).
+ */
+ SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE,
+
/**
* This state indicates that the request has completed.
* This state is entered from the STARTED state. This state is entered from
void scic_sds_smp_request_assign_buffers(struct scic_sds_request *sci_req);
enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req);
enum sci_status scic_sds_io_request_terminate(struct scic_sds_request *sci_req);
-void scic_sds_io_request_copy_response(struct scic_sds_request *sci_req);
enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_req,
u32 event_code);
enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req,
enum sci_status scic_sds_task_request_terminate(struct scic_sds_request *sci_req);
enum sci_status scic_sds_request_started_state_abort_handler(struct scic_sds_request *sci_req);
-/**
- * enum _scic_sds_io_request_started_task_mgmt_substates - This enumeration
- * depicts all of the substates for a task management request to be
- * performed in the STARTED super-state.
- *
- *
- */
-enum scic_sds_raw_request_started_task_mgmt_substates {
- /**
- * The AWAIT_TC_COMPLETION sub-state indicates that the started raw
- * task management request is waiting for the transmission of the
- * initial frame (i.e. command, task, etc.).
- */
- SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION,
-
- /**
- * This sub-state indicates that the started task management request
- * is waiting for the reception of an unsolicited frame
- * (i.e. response IU).
- */
- SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE,
-};
-
/**
* enum _scic_sds_smp_request_started_substates - This enumeration depicts all
+++ /dev/null
-/*
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * BSD LICENSE
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "host.h"
-#include "request.h"
-#include "state_machine.h"
-#include "scu_task_context.h"
-#include "scu_completion_codes.h"
-
-/**
- * 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.
- * @sci_req: This parameter specifies the request for which the TC
- * completion was received.
- * @completion_code: This parameter indicates the completion status information
- * for the TC.
- *
- * Indicate if the tc completion handler was successful. SCI_SUCCESS currently
- * this method always returns success.
- */
-static enum sci_status scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler(
- struct scic_sds_request *sci_req,
- u32 completion_code)
-{
- switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) {
- case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
- scic_sds_request_set_status(
- sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS
- );
-
- sci_base_state_machine_change_state(
- &sci_req->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. */
- dev_warn(scic_to_dev(sci_req->owning_controller),
- "%s: TaskRequest:0x%p CompletionCode:%x - "
- "ACK/NAK timeout\n",
- __func__,
- sci_req,
- completion_code);
-
- sci_base_state_machine_change_state(
- &sci_req->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(
- sci_req,
- SCU_NORMALIZE_COMPLETION_STATUS(completion_code),
- SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR
- );
-
- sci_base_state_machine_change_state(&sci_req->state_machine,
- SCI_BASE_REQUEST_STATE_COMPLETED);
- break;
- }
-
- return SCI_SUCCESS;
-}
-
-/**
- * This method is responsible for processing a terminate/abort request for this
- * TC while the request is waiting for the task management response
- * unsolicited frame.
- * @sci_req: This parameter specifies the request for which the
- * termination was requested.
- *
- * This method returns an indication as to whether the abort request was
- * successfully handled. need to update to ensure the received UF doesn't cause
- * damage to subsequent requests (i.e. put the extended tag in a holding
- * pattern for this particular device).
- */
-static enum sci_status scic_sds_ssp_task_request_await_tc_response_abort_handler(
- struct scic_sds_request *request)
-{
- sci_base_state_machine_change_state(&request->state_machine,
- SCI_BASE_REQUEST_STATE_ABORTING);
- sci_base_state_machine_change_state(&request->state_machine,
- SCI_BASE_REQUEST_STATE_COMPLETED);
- return SCI_SUCCESS;
-}
-
-/**
- * This method processes an unsolicited frame while the task mgmt 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.
- * @sci_req: This parameter specifies the request for which the
- * unsolicited frame was received.
- * @frame_index: This parameter indicates the unsolicited frame index that
- * should contain the response.
- *
- * This method returns an indication of whether the TC response frame was
- * handled successfully or not. SCI_SUCCESS Currently this value is always
- * returned and indicates successful processing of the TC response. Should
- * probably update to check frame type and make sure it is a response frame.
- */
-static enum sci_status scic_sds_ssp_task_request_await_tc_response_frame_handler(
- struct scic_sds_request *request,
- u32 frame_index)
-{
- scic_sds_io_request_copy_response(request);
-
- sci_base_state_machine_change_state(&request->state_machine,
- SCI_BASE_REQUEST_STATE_COMPLETED);
- scic_sds_controller_release_frame(request->owning_controller,
- frame_index);
- return SCI_SUCCESS;
-}
-
-static const struct scic_sds_io_request_state_handler scic_sds_ssp_task_request_started_substate_handler_table[] = {
- [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = {
- .abort_handler = scic_sds_request_started_state_abort_handler,
- .tc_completion_handler = scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler,
- },
- [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = {
- .abort_handler = scic_sds_ssp_task_request_await_tc_response_abort_handler,
- .frame_handler = scic_sds_ssp_task_request_await_tc_response_frame_handler,
- }
-};
-
-/**
- * This method performs the actions required when entering the
- * SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION
- * sub-state. This includes setting the IO request state handlers for this
- * sub-state.
- * @object: This parameter specifies the request object for which the sub-state
- * change is occurring.
- *
- * none.
- */
-static void scic_sds_io_request_started_task_mgmt_await_tc_completion_substate_enter(
- void *object)
-{
- struct scic_sds_request *sci_req = object;
-
- SET_STATE_HANDLER(
- sci_req,
- scic_sds_ssp_task_request_started_substate_handler_table,
- SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION
- );
-}
-
-/**
- * This method performs the actions required when entering the
- * SCIC_SDS_IO_REQUEST_STARTED_SUBSTATE_AWAIT_TC_RESPONSE sub-state. This
- * includes setting the IO request state handlers for this sub-state.
- * @object: This parameter specifies the request object for which the sub-state
- * change is occurring.
- *
- * none.
- */
-static void scic_sds_io_request_started_task_mgmt_await_task_response_substate_enter(
- void *object)
-{
- struct scic_sds_request *sci_req = object;
-
- SET_STATE_HANDLER(
- sci_req,
- scic_sds_ssp_task_request_started_substate_handler_table,
- SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE
- );
-}
-
-const struct sci_base_state scic_sds_io_request_started_task_mgmt_substate_table[] = {
- [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = {
- .enter_state = scic_sds_io_request_started_task_mgmt_await_tc_completion_substate_enter,
- },
- [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = {
- .enter_state = scic_sds_io_request_started_task_mgmt_await_task_response_substate_enter,
- },
-};
-
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