diff options
| -rw-r--r-- | drivers/scsi/isci/core/intel_sas.h | 47 | ||||
| -rw-r--r-- | drivers/scsi/isci/core/scic_sds_request.c | 108 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.c | 121 | ||||
| -rw-r--r-- | drivers/scsi/isci/sas.h | 34 | ||||
| -rw-r--r-- | drivers/scsi/isci/task.c | 49 |
5 files changed, 74 insertions, 285 deletions
diff --git a/drivers/scsi/isci/core/intel_sas.h b/drivers/scsi/isci/core/intel_sas.h index 91c30cfee21..f7301aa14f0 100644 --- a/drivers/scsi/isci/core/intel_sas.h +++ b/drivers/scsi/isci/core/intel_sas.h @@ -160,53 +160,6 @@ enum sci_sas_frame_type { SCI_SAS_TASK_FRAME = 0x16 }; -/** - * struct sci_ssp_command_iu - This structure depicts the contents of the SSP - * COMMAND INFORMATION UNIT. For specific information on each of these - * individual fields please reference the SAS specification SSP transport - * layer section. - * - * - */ -struct sci_ssp_command_iu { - u32 lun_upper; - u32 lun_lower; - - u32 additional_cdb_length:6; - u32 reserved0:2; - u32 reserved1:8; - u32 enable_first_burst:1; - u32 task_priority:4; - u32 task_attribute:3; - u32 reserved2:8; - - u32 cdb[4]; - -}; - -/** - * struct sci_ssp_task_iu - This structure depicts the contents of the SSP TASK - * INFORMATION UNIT. For specific information on each of these individual - * fields please reference the SAS specification SSP transport layer section. - * - * - */ -struct sci_ssp_task_iu { - u32 lun_upper; - u32 lun_lower; - - u32 reserved0:8; - u32 task_function:8; - u32 reserved1:8; - u32 reserved2:8; - - u32 reserved3:16; - u32 task_tag:16; - - u32 reserved4[3]; - -}; - #define SSP_RESPONSE_IU_MAX_DATA 64 #define SCI_SSP_RESPONSE_IU_DATA_PRESENT_MASK (0x03) diff --git a/drivers/scsi/isci/core/scic_sds_request.c b/drivers/scsi/isci/core/scic_sds_request.c index 31df5267c09..b6d1333e01f 100644 --- a/drivers/scsi/isci/core/scic_sds_request.c +++ b/drivers/scsi/isci/core/scic_sds_request.c @@ -54,6 +54,7 @@ */ #include <scsi/sas.h> +#include "sas.h" #include "intel_sas.h" #include "scic_controller.h" #include "scic_io_request.h" @@ -98,7 +99,7 @@ */ #define scic_ssp_io_request_get_object_size() \ (\ - sizeof(struct sci_ssp_command_iu) \ + sizeof(struct ssp_cmd_iu) \ + sizeof(struct sci_ssp_response_iu) \ ) @@ -109,7 +110,7 @@ * memory */ #define scic_sds_ssp_request_get_command_buffer(memory) \ - ((struct sci_ssp_command_iu *)(\ + ((struct ssp_cmd_iu *)(\ ((char *)(memory)) + sizeof(struct scic_sds_request) \ )) @@ -122,7 +123,7 @@ #define scic_sds_ssp_request_get_response_buffer(memory) \ ((struct sci_ssp_response_iu *)(\ ((char *)(scic_sds_ssp_request_get_command_buffer(memory))) \ - + sizeof(struct sci_ssp_command_iu) \ + + sizeof(struct ssp_cmd_iu) \ )) /** @@ -158,7 +159,7 @@ */ #define scic_ssp_task_request_get_object_size() \ (\ - sizeof(struct sci_ssp_task_iu) \ + sizeof(struct ssp_task_iu) \ + sizeof(struct sci_ssp_response_iu) \ ) @@ -169,7 +170,7 @@ * memory. Yes its the same as the above macro except for the name. */ #define scic_sds_ssp_task_request_get_command_buffer(memory) \ - ((struct sci_ssp_task_iu *)(\ + ((struct ssp_task_iu *)(\ ((char *)(memory)) + sizeof(struct scic_sds_request) \ )) @@ -182,7 +183,7 @@ #define scic_sds_ssp_task_request_get_response_buffer(memory) \ ((struct sci_ssp_response_iu *)(\ ((char *)(scic_sds_ssp_task_request_get_command_buffer(memory))) \ - + sizeof(struct sci_ssp_task_iu) \ + + sizeof(struct ssp_task_iu) \ )) /** @@ -344,80 +345,49 @@ static void scic_sds_ssp_io_request_assign_buffers( } } -/** - * This method constructs the SSP Command IU data for this io request object. - * @sci_req: This parameter specifies the request object for which the SSP - * command information unit is being built. - * - */ -static void scic_sds_io_request_build_ssp_command_iu( - struct scic_sds_request *sds_request) +static void scic_sds_io_request_build_ssp_command_iu(struct scic_sds_request *sci_req) { - struct sci_ssp_command_iu *command_frame; - u32 cdb_length; - u32 *cdb_buffer; - struct isci_request *isci_request = sds_request->ireq; - - command_frame = - (struct sci_ssp_command_iu *)sds_request->command_buffer; - - command_frame->lun_upper = 0; - command_frame->lun_lower = - isci_request_ssp_io_request_get_lun(isci_request); - - ((u32 *)command_frame)[2] = 0; + struct ssp_cmd_iu *cmd_iu; + struct isci_request *ireq = sci_req->ireq; + struct sas_task *task = isci_request_access_task(ireq); - cdb_length = isci_request_ssp_io_request_get_cdb_length(isci_request); - cdb_buffer = (u32 *)isci_request_ssp_io_request_get_cdb_address( - isci_request); + cmd_iu = sci_req->command_buffer; - if (cdb_length > 16) { - command_frame->additional_cdb_length = cdb_length - 16; - } + memcpy(cmd_iu->LUN, task->ssp_task.LUN, 8); + cmd_iu->add_cdb_len = 0; + cmd_iu->_r_a = 0; + cmd_iu->_r_b = 0; + cmd_iu->en_fburst = 0; /* unsupported */ + cmd_iu->task_prio = task->ssp_task.task_prio; + cmd_iu->task_attr = task->ssp_task.task_attr; + cmd_iu->_r_c = 0; - /* / @todo Is it ok to leave junk at the end of the cdb buffer? */ scic_word_copy_with_swap( - (u32 *)(&command_frame->cdb), - (u32 *)(cdb_buffer), - (cdb_length + 3) / sizeof(u32) - ); - - command_frame->enable_first_burst = 0; - command_frame->task_priority = - isci_request_ssp_io_request_get_command_priority(isci_request); - command_frame->task_attribute = - isci_request_ssp_io_request_get_task_attribute(isci_request); + (u32 *)(&cmd_iu->cdb), + (u32 *)task->ssp_task.cdb, + sizeof(task->ssp_task.cdb) / sizeof(u32)); } - -/** - * This method constructs the SSP Task IU data for this io request object. - * @sci_req: - * - */ -static void scic_sds_task_request_build_ssp_task_iu( - struct scic_sds_request *sds_request) +static void scic_sds_task_request_build_ssp_task_iu(struct scic_sds_request *sci_req) { - struct sci_ssp_task_iu *command_frame; - struct isci_request *isci_request = sds_request->ireq; + struct ssp_task_iu *task_iu; + struct isci_request *ireq = sci_req->ireq; + struct sas_task *task = isci_request_access_task(ireq); + struct isci_tmf *isci_tmf = isci_request_access_tmf(ireq); - command_frame = - (struct sci_ssp_task_iu *)sds_request->command_buffer; + task_iu = sci_req->command_buffer; - command_frame->lun_upper = 0; - command_frame->lun_lower = isci_request_ssp_io_request_get_lun( - isci_request); + memset(task_iu, 0, sizeof(struct ssp_task_iu)); - ((u32 *)command_frame)[2] = 0; + memcpy(task_iu->LUN, task->ssp_task.LUN, 8); - command_frame->task_function = - isci_task_ssp_request_get_function(isci_request); - command_frame->task_tag = - isci_task_ssp_request_get_io_tag_to_manage( - isci_request); + task_iu->task_func = isci_tmf->tmf_code; + task_iu->task_tag = + (ireq->ttype == tmf_task) ? + isci_tmf->io_tag : + SCI_CONTROLLER_INVALID_IO_TAG; } - /** * This method is will fill in the SCU Task Context for any type of SSP request. * @sci_req: @@ -533,7 +503,8 @@ static void scu_ssp_io_request_construct_task_context( scu_ssp_reqeust_construct_task_context(sci_req, task_context); - task_context->ssp_command_iu_length = sizeof(struct sci_ssp_command_iu) / sizeof(u32); + task_context->ssp_command_iu_length = + sizeof(struct ssp_cmd_iu) / sizeof(u32); task_context->type.ssp.frame_type = SCI_SAS_COMMAND_FRAME; switch (dir) { @@ -605,7 +576,8 @@ static void scu_ssp_task_request_construct_task_context( task_context->task_type = SCU_TASK_TYPE_RAW_FRAME; task_context->transfer_length_bytes = 0; task_context->type.ssp.frame_type = SCI_SAS_TASK_FRAME; - task_context->ssp_command_iu_length = sizeof(struct sci_ssp_task_iu) / sizeof(u32); + task_context->ssp_command_iu_length = + sizeof(struct ssp_task_iu) / sizeof(u32); } diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index c45e78e41f2..501df3ca428 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -1241,124 +1241,3 @@ enum dma_data_direction isci_request_io_request_get_data_direction( return task->data_dir; } - -/** - * isci_request_sge_get_address_field() - This function is called by the sci - * core to retrieve the address field contents for a given sge. - * @request: This parameter is the isci_request object. - * @sge_address: This parameter is the sge. - * - * physical address in the specified sge. - */ - - -/** - * isci_request_sge_get_length_field() - This function is called by the sci - * core to retrieve the length field contents for a given sge. - * @request: This parameter is the isci_request object. - * @sge_address: This parameter is the sge. - * - * length field value in the specified sge. - */ - - -/** - * isci_request_ssp_io_request_get_cdb_address() - This function is called by - * the sci core to retrieve the cdb address for a given request. - * @request: This parameter is the isci_request object. - * - * cdb address for specified request. - */ -void *isci_request_ssp_io_request_get_cdb_address( - struct isci_request *request) -{ - struct sas_task *task = isci_request_access_task(request); - - dev_dbg(&request->isci_host->pdev->dev, - "%s: request->task->ssp_task.cdb = %p\n", - __func__, - task->ssp_task.cdb); - return task->ssp_task.cdb; -} - - -/** - * isci_request_ssp_io_request_get_cdb_length() - This function is called by - * the sci core to retrieve the cdb length for a given request. - * @request: This parameter is the isci_request object. - * - * cdb length for specified request. - */ -u32 isci_request_ssp_io_request_get_cdb_length( - struct isci_request *request) -{ - return 16; -} - - -/** - * isci_request_ssp_io_request_get_lun() - This function is called by the sci - * core to retrieve the lun for a given request. - * @request: This parameter is the isci_request object. - * - * lun for specified request. - */ -u32 isci_request_ssp_io_request_get_lun( - struct isci_request *request) -{ - struct sas_task *task = isci_request_access_task(request); - -#ifdef DEBUG - int i; - - for (i = 0; i < 8; i++) - dev_dbg(&request->isci_host->pdev->dev, - "%s: task->ssp_task.LUN[%d] = %x\n", - __func__, i, task->ssp_task.LUN[i]); - -#endif - - return task->ssp_task.LUN[0]; -} - - -/** - * isci_request_ssp_io_request_get_task_attribute() - This function is called - * by the sci core to retrieve the task attribute for a given request. - * @request: This parameter is the isci_request object. - * - * task attribute for specified request. - */ -u32 isci_request_ssp_io_request_get_task_attribute( - struct isci_request *request) -{ - struct sas_task *task = isci_request_access_task(request); - - dev_dbg(&request->isci_host->pdev->dev, - "%s: request->task->ssp_task.task_attr = %x\n", - __func__, - task->ssp_task.task_attr); - - return task->ssp_task.task_attr; -} - - -/** - * isci_request_ssp_io_request_get_command_priority() - This function is called - * by the sci core to retrieve the command priority for a given request. - * @request: This parameter is the isci_request object. - * - * command priority for specified request. - */ -u32 isci_request_ssp_io_request_get_command_priority( - struct isci_request *request) -{ - struct sas_task *task = isci_request_access_task(request); - - dev_dbg(&request->isci_host->pdev->dev, - "%s: request->task->ssp_task.task_prio = %x\n", - __func__, - task->ssp_task.task_prio); - - return task->ssp_task.task_prio; -} diff --git a/drivers/scsi/isci/sas.h b/drivers/scsi/isci/sas.h index 05af8bd6145..21ddd63924e 100644 --- a/drivers/scsi/isci/sas.h +++ b/drivers/scsi/isci/sas.h @@ -69,4 +69,38 @@ #define FIS_PIO_SETUP 0x5F #define FIS_DATA 0x46 +/* + * contents of the SSP COMMAND INFORMATION UNIT. + * For specific information on each of these individual fields please + * reference the SAS specification SSP transport layer section. + * XXX: This needs to go into <scsi/sas.h> + */ +struct ssp_cmd_iu { + u8 LUN[8]; + u8 add_cdb_len:6; + u8 _r_a:2; + u8 _r_b; + u8 en_fburst:1; + u8 task_prio:4; + u8 task_attr:3; + u8 _r_c; + + u8 cdb[16]; +} __packed; + +/* + * contents of the SSP TASK INFORMATION UNIT. + * For specific information on each of these individual fields please + * reference the SAS specification SSP transport layer section. + * XXX: This needs to go into <scsi/sas.h> + */ +struct ssp_task_iu { + u8 LUN[8]; + u8 _r_a; + u8 task_func; + u8 _r_b[4]; + u16 task_tag; + u8 _r_c[12]; +} __packed; + #endif diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index f9a1c41a5ce..c4db95933d4 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -1481,55 +1481,6 @@ void isci_task_request_complete( complete(tmf_complete); } - -/** - * isci_task_ssp_request_get_lun() - This function is called by the sci core to - * retrieve the lun for a given task request. - * @request: This parameter is the isci_request object. - * - * lun for specified task request. - */ - -/** - * isci_task_ssp_request_get_function() - This function is called by the sci - * core to retrieve the function for a given task request. - * @request: This parameter is the isci_request object. - * - * function code for specified task request. - */ -u8 isci_task_ssp_request_get_function(struct isci_request *request) -{ - struct isci_tmf *isci_tmf = isci_request_access_tmf(request); - - dev_dbg(&request->isci_host->pdev->dev, - "%s: func = %d\n", __func__, isci_tmf->tmf_code); - - return isci_tmf->tmf_code; -} - -/** - * isci_task_ssp_request_get_io_tag_to_manage() - This function is called by - * the sci core to retrieve the io tag for a given task request. - * @request: This parameter is the isci_request object. - * - * io tag for specified task request. - */ -u16 isci_task_ssp_request_get_io_tag_to_manage(struct isci_request *request) -{ - u16 io_tag = SCI_CONTROLLER_INVALID_IO_TAG; - - if (tmf_task == request->ttype) { - struct isci_tmf *tmf = isci_request_access_tmf(request); - io_tag = tmf->io_tag; - } - - dev_dbg(&request->isci_host->pdev->dev, - "%s: request = %p, io_tag = %d\n", - __func__, request, io_tag); - - return io_tag; -} - /** * isci_task_ssp_request_get_response_data_address() - This function is called * by the sci core to retrieve the response data address for a given task |