88f3b62ac1
Now that the core/lldd remote_device data structures are nominally unified merge the corresponding sources into the top-level directory. Also move the remote_node_context infrastructure which has no analog at the lldd level. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
314 lines
12 KiB
C
314 lines
12 KiB
C
/*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "scic_sds_controller.h"
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#include "scic_sds_port.h"
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#include "remote_device.h"
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#include "scic_sds_request.h"
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#include "sci_environment.h"
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#include "sci_util.h"
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#include "scu_event_codes.h"
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#include "scu_task_context.h"
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/*
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* *****************************************************************************
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* * SMP REMOTE DEVICE READY IDLE SUBSTATE HANDLERS
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* ***************************************************************************** */
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/**
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*
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* @[in]: device The device the io is sent to.
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* @[in]: request The io to start.
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*
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* This method will handle the start io operation for a SMP device that is in
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* the idle state. enum sci_status
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*/
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static enum sci_status scic_sds_smp_remote_device_ready_idle_substate_start_io_handler(
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struct scic_sds_remote_device *device,
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struct scic_sds_request *request)
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{
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enum sci_status status;
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/* Will the port allow the io request to start? */
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status = device->owning_port->state_handlers->start_io_handler(
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device->owning_port, device, request);
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if (status == SCI_SUCCESS) {
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status = scic_sds_remote_node_context_start_io(&device->rnc, request);
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if (status == SCI_SUCCESS)
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status = scic_sds_request_start(request);
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if (status == SCI_SUCCESS) {
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device->working_request = request;
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sci_base_state_machine_change_state(
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&device->ready_substate_machine,
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SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD
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);
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}
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scic_sds_remote_device_start_request(device, request, status);
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}
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return status;
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}
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/*
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* ******************************************************************************
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* * SMP REMOTE DEVICE READY SUBSTATE CMD HANDLERS
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* ****************************************************************************** */
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/**
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*
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* @device: This is the device object that is receiving the IO.
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* @request: The io to start.
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*
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* This device is already handling a command it can not accept new commands
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* until this one is complete. enum sci_status
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*/
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static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler(
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struct scic_sds_remote_device *device,
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struct scic_sds_request *request)
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{
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return SCI_FAILURE_INVALID_STATE;
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}
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/**
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* this is the complete_io_handler for smp device at ready cmd substate.
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* @device: This is the device object that is receiving the IO.
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* @request: The io to start.
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*
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* enum sci_status
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*/
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static enum sci_status
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scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler(
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struct scic_sds_remote_device *device,
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struct scic_sds_request *request)
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{
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enum sci_status status;
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struct scic_sds_request *sci_req;
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sci_req = (struct scic_sds_request *)request;
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status = scic_sds_io_request_complete(sci_req);
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if (status == SCI_SUCCESS) {
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status = scic_sds_port_complete_io(
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device->owning_port, device, sci_req);
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if (status == SCI_SUCCESS) {
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scic_sds_remote_device_decrement_request_count(device);
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sci_base_state_machine_change_state(
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&device->ready_substate_machine,
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SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE
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);
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} else
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dev_err(scirdev_to_dev(device),
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"%s: SCIC SDS Remote Device 0x%p io request "
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"0x%p could not be completd on the port 0x%p "
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"failed with status %d.\n",
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__func__,
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device,
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sci_req,
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device->owning_port,
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status);
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}
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return status;
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}
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/**
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* This is frame handler for smp device ready cmd substate.
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* @sci_dev: This is the device object that is receiving the frame.
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* @frame_index: The index for the frame received.
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*
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* enum sci_status
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*/
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static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_frame_handler(
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struct scic_sds_remote_device *sci_dev,
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u32 frame_index)
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{
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enum sci_status status;
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/*
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* / The device does not process any UF received from the hardware while
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* / in this state. All unsolicited frames are forwarded to the io request
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* / object. */
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status = scic_sds_io_request_frame_handler(
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sci_dev->working_request,
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frame_index
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);
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return status;
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}
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/* --------------------------------------------------------------------------- */
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static const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_device_ready_substate_handler_table[] = {
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[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
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.start_handler = scic_sds_remote_device_default_start_handler,
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.stop_handler = scic_sds_remote_device_ready_state_stop_handler,
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.fail_handler = scic_sds_remote_device_default_fail_handler,
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.destruct_handler = scic_sds_remote_device_default_destruct_handler,
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.reset_handler = scic_sds_remote_device_default_reset_handler,
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.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
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.start_io_handler = scic_sds_smp_remote_device_ready_idle_substate_start_io_handler,
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.complete_io_handler = scic_sds_remote_device_default_complete_request_handler,
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.continue_io_handler = scic_sds_remote_device_default_continue_request_handler,
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.start_task_handler = scic_sds_remote_device_default_start_request_handler,
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.complete_task_handler = scic_sds_remote_device_default_complete_request_handler,
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.suspend_handler = scic_sds_remote_device_default_suspend_handler,
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.resume_handler = scic_sds_remote_device_default_resume_handler,
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.event_handler = scic_sds_remote_device_general_event_handler,
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.frame_handler = scic_sds_remote_device_default_frame_handler
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},
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[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
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.start_handler = scic_sds_remote_device_default_start_handler,
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.stop_handler = scic_sds_remote_device_ready_state_stop_handler,
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.fail_handler = scic_sds_remote_device_default_fail_handler,
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.destruct_handler = scic_sds_remote_device_default_destruct_handler,
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.reset_handler = scic_sds_remote_device_default_reset_handler,
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.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
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.start_io_handler = scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler,
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.complete_io_handler = scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler,
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.continue_io_handler = scic_sds_remote_device_default_continue_request_handler,
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.start_task_handler = scic_sds_remote_device_default_start_request_handler,
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.complete_task_handler = scic_sds_remote_device_default_complete_request_handler,
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.suspend_handler = scic_sds_remote_device_default_suspend_handler,
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.resume_handler = scic_sds_remote_device_default_resume_handler,
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.event_handler = scic_sds_remote_device_general_event_handler,
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.frame_handler = scic_sds_smp_remote_device_ready_cmd_substate_frame_handler
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}
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};
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/**
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*
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* @object: This is the struct sci_base_object which is cast into a
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* struct scic_sds_remote_device.
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*
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* This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE enter method.
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* This function sets the ready cmd substate handlers and reports the device as
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* ready. none
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*/
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static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_object *object)
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{
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struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev),
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parent);
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struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev);
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struct isci_host *ihost = sci_object_get_association(scic);
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struct isci_remote_device *idev = sci_object_get_association(sci_dev);
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SET_STATE_HANDLER(sci_dev,
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scic_sds_smp_remote_device_ready_substate_handler_table,
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SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE);
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isci_remote_device_ready(ihost, idev);
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}
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/**
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*
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* @object: This is the struct sci_base_object which is cast into a
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* struct scic_sds_remote_device.
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*
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* This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD enter method. This
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* function sets the remote device objects ready cmd substate handlers, and
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* notify core user that the device is not ready. none
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*/
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static void scic_sds_smp_remote_device_ready_cmd_substate_enter(
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struct sci_base_object *object)
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{
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struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev),
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parent);
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struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev);
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struct isci_host *ihost = sci_object_get_association(scic);
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struct isci_remote_device *idev = sci_object_get_association(sci_dev);
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BUG_ON(sci_dev->working_request == NULL);
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SET_STATE_HANDLER(sci_dev,
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scic_sds_smp_remote_device_ready_substate_handler_table,
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SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD);
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isci_remote_device_not_ready(ihost, idev,
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SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED);
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}
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/**
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*
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* @object: This is the struct sci_base_object which is cast into a
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* struct scic_sds_remote_device.
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*
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* This is the SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_CMD exit method. none
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*/
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static void scic_sds_smp_remote_device_ready_cmd_substate_exit(struct sci_base_object *object)
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{
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struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev),
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parent);
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sci_dev->working_request = NULL;
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}
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/* --------------------------------------------------------------------------- */
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const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[] = {
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[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
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.enter_state = scic_sds_smp_remote_device_ready_idle_substate_enter,
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},
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[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
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.enter_state = scic_sds_smp_remote_device_ready_cmd_substate_enter,
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.exit_state = scic_sds_smp_remote_device_ready_cmd_substate_exit,
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},
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};
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