1040a0007e
sys/dev/isci/isci_task_request.c:198:7: error: case value not in enumerated type 'SCI_TASK_STATUS' (aka 'enum _SCI_TASK_STATUS') [-Werror,-Wswitch]
case SCI_FAILURE_TIMEOUT:
^
This is because the switch is done on a SCI_TASK_STATUS enum type, but
the SCI_FAILURE_TIMEOUT value belongs to SCI_STATUS instead.
Because the list of SCI_TASK_STATUS values cannot be modified at this
time, use the simplest way to get rid of this warning, which is to cast
the switch argument to int. No functional change.
Reviewed by: jimharris
MFC after: 3 days
259 lines
9.1 KiB
C
259 lines
9.1 KiB
C
/*-
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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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*
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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 <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/isci/isci.h>
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#include <dev/isci/scil/scif_controller.h>
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#include <dev/isci/scil/scif_user_callback.h>
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/**
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* @brief This user callback will inform the user that a task management
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* request completed.
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*
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* @param[in] controller This parameter specifies the controller on
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* which the task management request is completing.
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* @param[in] remote_device This parameter specifies the remote device on
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* which this task management request is completing.
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* @param[in] task_request This parameter specifies the task management
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* request that has completed.
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* @param[in] completion_status This parameter specifies the results of
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* the IO request operation. SCI_TASK_SUCCESS indicates
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* successful completion.
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*
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* @return none
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*/
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void
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scif_cb_task_request_complete(SCI_CONTROLLER_HANDLE_T controller,
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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SCI_TASK_REQUEST_HANDLE_T task_request, SCI_TASK_STATUS completion_status)
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{
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scif_controller_complete_task(controller, remote_device, task_request);
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isci_task_request_complete(controller, remote_device, task_request,
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completion_status);
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}
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/**
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* @brief This method returns the Logical Unit to be utilized for this
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* task management request.
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*
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* @note The contents of the value returned from this callback are defined
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* by the protocol standard (e.g. T10 SAS specification). Please
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* refer to the transport task information unit description
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* in the associated standard.
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*
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* @param[in] scif_user_task_request This parameter points to the user's
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* task request object. It is a cookie that allows the user to
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* provide the necessary information for this callback.
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*
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* @return This method returns the LUN associated with this request.
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* @todo This should be U64?
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*/
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uint32_t
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scif_cb_task_request_get_lun(void * scif_user_task_request)
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{
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/* Currently we are only doing hard resets, not LUN resets. So
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* always returning 0 is OK here, since LUN doesn't matter for
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* a hard device reset.
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*/
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return (0);
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}
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/**
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* @brief This method returns the task management function to be utilized
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* for this task request.
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*
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* @note The contents of the value returned from this callback are defined
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* by the protocol standard (e.g. T10 SAS specification). Please
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* refer to the transport task information unit description
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* in the associated standard.
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*
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* @param[in] scif_user_task_request This parameter points to the user's
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* task request object. It is a cookie that allows the user to
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* provide the necessary information for this callback.
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*
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* @return This method returns an unsigned byte representing the task
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* management function to be performed.
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*/
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uint8_t scif_cb_task_request_get_function(void * scif_user_task_request)
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{
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/* SCIL supports many types of task management functions, but this
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* driver only uses HARD_RESET.
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*/
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return (SCI_SAS_HARD_RESET);
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}
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/**
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* @brief This method returns the task management IO tag to be managed.
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* Depending upon the task management function the value returned
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* from this method may be ignored.
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*
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* @param[in] scif_user_task_request This parameter points to the user's
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* task request object. It is a cookie that allows the user to
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* provide the necessary information for this callback.
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*
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* @return This method returns an unsigned 16-bit word depicting the IO
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* tag to be managed.
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*/
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uint16_t
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scif_cb_task_request_get_io_tag_to_manage(void * scif_user_task_request)
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{
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return (0);
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}
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/**
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* @brief This callback method asks the user to provide the virtual
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* address of the response data buffer for the supplied IO request.
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*
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* @param[in] scif_user_task_request This parameter points to the user's
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* task request object. It is a cookie that allows the user to
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* provide the necessary information for this callback.
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*
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* @return This method returns the virtual address for the response data buffer
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* associated with this IO request.
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*/
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void *
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scif_cb_task_request_get_response_data_address(void * scif_user_task_request)
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{
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struct ISCI_TASK_REQUEST *task_request =
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(struct ISCI_TASK_REQUEST *)scif_user_task_request;
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return (&task_request->sense_data);
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}
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/**
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* @brief This callback method asks the user to provide the length of the
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* response data buffer for the supplied IO request.
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*
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* @param[in] scif_user_task_request This parameter points to the user's
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* task request object. It is a cookie that allows the user to
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* provide the necessary information for this callback.
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*
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* @return This method returns the length of the response buffer data
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* associated with this IO request.
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*/
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uint32_t
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scif_cb_task_request_get_response_data_length(void * scif_user_task_request)
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{
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return (sizeof(struct scsi_sense_data));
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}
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void
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isci_task_request_complete(SCI_CONTROLLER_HANDLE_T scif_controller,
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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SCI_TASK_REQUEST_HANDLE_T task_request, SCI_TASK_STATUS completion_status)
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{
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struct ISCI_TASK_REQUEST *isci_task_request =
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(struct ISCI_TASK_REQUEST *)sci_object_get_association(task_request);
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struct ISCI_CONTROLLER *isci_controller =
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(struct ISCI_CONTROLLER *)sci_object_get_association(scif_controller);
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struct ISCI_REMOTE_DEVICE *isci_remote_device =
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(struct ISCI_REMOTE_DEVICE *)sci_object_get_association(remote_device);
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struct ISCI_REMOTE_DEVICE *pending_remote_device;
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BOOL retry_task = FALSE;
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union ccb *ccb = isci_task_request->ccb;
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isci_remote_device->is_resetting = FALSE;
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switch ((int)completion_status) {
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case SCI_TASK_SUCCESS:
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case SCI_TASK_FAILURE_RESPONSE_VALID:
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break;
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case SCI_TASK_FAILURE_INVALID_STATE:
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case SCI_TASK_FAILURE_INSUFFICIENT_RESOURCES:
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case SCI_FAILURE_TIMEOUT:
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retry_task = TRUE;
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isci_log_message(0, "ISCI",
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"unhandled task completion code 0x%x\n", completion_status);
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break;
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case SCI_TASK_FAILURE:
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case SCI_TASK_FAILURE_UNSUPPORTED_PROTOCOL:
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case SCI_TASK_FAILURE_INVALID_TAG:
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case SCI_TASK_FAILURE_CONTROLLER_SPECIFIC_ERR:
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case SCI_TASK_FAILURE_TERMINATED:
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case SCI_TASK_FAILURE_INVALID_PARAMETER_VALUE:
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isci_log_message(0, "ISCI",
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"unhandled task completion code 0x%x\n", completion_status);
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break;
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default:
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isci_log_message(0, "ISCI",
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"unhandled task completion code 0x%x\n", completion_status);
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break;
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}
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if (isci_controller->is_frozen == TRUE) {
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isci_controller->is_frozen = FALSE;
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xpt_release_simq(isci_controller->sim, TRUE);
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}
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sci_pool_put(isci_controller->request_pool,
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(struct ISCI_REQUEST *)isci_task_request);
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/* Make sure we release the device queue, since it may have been frozen
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* if someone tried to start an I/O while the task was in progress.
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*/
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isci_remote_device_release_device_queue(isci_remote_device);
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if (retry_task == TRUE)
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isci_remote_device_reset(isci_remote_device, ccb);
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else {
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pending_remote_device = sci_fast_list_remove_head(
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&isci_controller->pending_device_reset_list);
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if (pending_remote_device != NULL) {
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/* Any resets that were triggered from an XPT_RESET_DEV
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* CCB are never put in the pending list if the request
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* pool is empty - they are given back to CAM to be
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* requeued. So we will alawys pass NULL here,
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* denoting that there is no CCB associated with the
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* device reset.
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*/
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isci_remote_device_reset(pending_remote_device, NULL);
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} else if (ccb != NULL) {
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/* There was a CCB associated with this reset, so mark
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* it complete and return it to CAM.
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*/
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ccb->ccb_h.status &= ~CAM_STATUS_MASK;
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ccb->ccb_h.status |= CAM_REQ_CMP;
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xpt_done(ccb);
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}
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}
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}
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