diff options
Diffstat (limited to 'sys/dev/smartpqi/smartpqi_ioctl.c')
| -rw-r--r-- | sys/dev/smartpqi/smartpqi_ioctl.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/sys/dev/smartpqi/smartpqi_ioctl.c b/sys/dev/smartpqi/smartpqi_ioctl.c index 0517c0513cce..7fd68b1a3263 100644 --- a/sys/dev/smartpqi/smartpqi_ioctl.c +++ b/sys/dev/smartpqi/smartpqi_ioctl.c @@ -169,6 +169,13 @@ smartpqi_ioctl(struct cdev *cdev, u_long cmd, caddr_t udata, pqi_status = pqisrc_passthru_ioctl(softs, udata, 0); bsd_status = pqi_status_to_bsd_ioctl_status(pqi_status); break; + case SMARTPQI_BIG_PASS_THRU: + pqi_status = pqisrc_big_passthru_ioctl(softs, udata, 0); + bsd_status = pqi_status_to_bsd_ioctl_status(pqi_status); + break; + case SMARTPQI_BIG_PASSTHRU_SUPPORTED: + bsd_status = BSD_SUCCESS; + break; case CCISS_REGNEWD: pqi_status = pqisrc_scan_devices(softs); bsd_status = pqi_status_to_bsd_ioctl_status(pqi_status); @@ -422,3 +429,195 @@ out: DBG_FUNC("Failed OUT\n"); return PQI_STATUS_FAILURE; } + +/* + * Function used to send big passthru commands to adapter + * to support management tools. For eg. ssacli, sscon. + */ +int +pqisrc_big_passthru_ioctl(struct pqisrc_softstate *softs, void *arg, int mode) +{ + int ret; + char *drv_buf = NULL; + uint32_t tag = 0; + BIG_IOCTL_Command_struct *iocommand = (BIG_IOCTL_Command_struct *)arg; + dma_mem_t ioctl_dma_buf; + pqisrc_raid_req_t request; + raid_path_error_info_elem_t error_info; + ib_queue_t *ib_q = &softs->op_raid_ib_q[PQI_DEFAULT_IB_QUEUE]; + ob_queue_t const *ob_q = &softs->op_ob_q[PQI_DEFAULT_IB_QUEUE]; + rcb_t *rcb = NULL; + + memset(&request, 0, sizeof(request)); + memset(&error_info, 0, sizeof(error_info)); + + DBG_FUNC("IN\n"); + + if (pqisrc_ctrl_offline(softs)) + return PQI_STATUS_FAILURE; + + if (!arg) + return PQI_STATUS_FAILURE; + + if (iocommand->buf_size < 1 && + iocommand->Request.Type.Direction != PQIIOCTL_NONE) + return PQI_STATUS_FAILURE; + if (iocommand->Request.CDBLen > sizeof(request.cmd.cdb)) + return PQI_STATUS_FAILURE; + + switch (iocommand->Request.Type.Direction) { + case PQIIOCTL_NONE: + case PQIIOCTL_WRITE: + case PQIIOCTL_READ: + case PQIIOCTL_BIDIRECTIONAL: + break; + default: + return PQI_STATUS_FAILURE; + } + + if (iocommand->buf_size > 0) { + memset(&ioctl_dma_buf, 0, sizeof(struct dma_mem)); + os_strlcpy(ioctl_dma_buf.tag, "Ioctl_PassthruCmd_Buffer", sizeof(ioctl_dma_buf.tag)); + ioctl_dma_buf.size = iocommand->buf_size; + ioctl_dma_buf.align = PQISRC_DEFAULT_DMA_ALIGN; + /* allocate memory */ + ret = os_dma_mem_alloc(softs, &ioctl_dma_buf); + if (ret) { + DBG_ERR("Failed to Allocate dma mem for Ioctl PassthruCmd Buffer : %d\n", ret); + goto out; + } + + DBG_IO("ioctl_dma_buf.dma_addr = %p\n",(void*)ioctl_dma_buf.dma_addr); + DBG_IO("ioctl_dma_buf.virt_addr = %p\n",(void*)ioctl_dma_buf.virt_addr); + + drv_buf = (char *)ioctl_dma_buf.virt_addr; + if (iocommand->Request.Type.Direction & PQIIOCTL_WRITE) { + ret = os_copy_from_user(softs, (void *)drv_buf, (void *)iocommand->buf, iocommand->buf_size, mode); + if (ret != 0) { + goto free_mem; + } + } + } + + request.header.iu_type = PQI_IU_TYPE_RAID_PATH_IO_REQUEST; + request.header.iu_length = offsetof(pqisrc_raid_req_t, sg_descriptors[1]) - + PQI_REQUEST_HEADER_LENGTH; + memcpy(request.lun_number, iocommand->LUN_info.LunAddrBytes, + sizeof(request.lun_number)); + memcpy(request.cmd.cdb, iocommand->Request.CDB, iocommand->Request.CDBLen); + request.additional_cdb_bytes_usage = PQI_ADDITIONAL_CDB_BYTES_0; + + switch (iocommand->Request.Type.Direction) { + case PQIIOCTL_NONE: + request.data_direction = SOP_DATA_DIR_NONE; + break; + case PQIIOCTL_WRITE: + request.data_direction = SOP_DATA_DIR_FROM_DEVICE; + break; + case PQIIOCTL_READ: + request.data_direction = SOP_DATA_DIR_TO_DEVICE; + break; + case PQIIOCTL_BIDIRECTIONAL: + request.data_direction = SOP_DATA_DIR_BIDIRECTIONAL; + break; + } + + request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; + if (iocommand->buf_size > 0) { + request.buffer_length = iocommand->buf_size; + request.sg_descriptors[0].addr = ioctl_dma_buf.dma_addr; + request.sg_descriptors[0].len = iocommand->buf_size; + request.sg_descriptors[0].flags = SG_FLAG_LAST; + } + tag = pqisrc_get_tag(&softs->taglist); + if (INVALID_ELEM == tag) { + DBG_ERR("Tag not available\n"); + goto free_mem; + } + request.request_id = tag; + request.response_queue_id = ob_q->q_id; + request.error_index = request.request_id; + if (softs->timeout_in_passthrough) { + request.timeout_in_sec = iocommand->Request.Timeout; + } + + rcb = &softs->rcb[tag]; + rcb->success_cmp_callback = pqisrc_process_internal_raid_response_success; + rcb->error_cmp_callback = pqisrc_process_internal_raid_response_error; + rcb->tag = tag; + rcb->req_pending = true; + /* Submit Command */ + ret = pqisrc_submit_cmnd(softs, ib_q, &request); + if (ret != PQI_STATUS_SUCCESS) { + DBG_ERR("Unable to submit command\n"); + goto err_out; + } + + ret = pqisrc_wait_on_condition(softs, rcb, PQISRC_PASSTHROUGH_CMD_TIMEOUT); + if (ret != PQI_STATUS_SUCCESS) { + DBG_ERR("Passthru IOCTL cmd timed out !!\n"); + goto err_out; + } + + memset(&iocommand->error_info, 0, sizeof(iocommand->error_info)); + + + if (rcb->status) { + size_t sense_data_length; + + memcpy(&error_info, rcb->error_info, sizeof(error_info)); + iocommand->error_info.ScsiStatus = error_info.status; + sense_data_length = error_info.sense_data_len; + + if (!sense_data_length) + sense_data_length = error_info.resp_data_len; + + if (sense_data_length && + (sense_data_length > sizeof(error_info.data))) + sense_data_length = sizeof(error_info.data); + + if (sense_data_length) { + if (sense_data_length > + sizeof(iocommand->error_info.SenseInfo)) + sense_data_length = + sizeof(iocommand->error_info.SenseInfo); + memcpy (iocommand->error_info.SenseInfo, + error_info.data, sense_data_length); + iocommand->error_info.SenseLen = sense_data_length; + } + + if (error_info.data_out_result == PQI_RAID_DATA_IN_OUT_UNDERFLOW) { + rcb->status = PQI_STATUS_SUCCESS; + } + } + + if (rcb->status == PQI_STATUS_SUCCESS && iocommand->buf_size > 0 && + (iocommand->Request.Type.Direction & PQIIOCTL_READ)) { + + ret = os_copy_to_user(softs, (void*)iocommand->buf, (void*)drv_buf, iocommand->buf_size, mode); + if (ret != 0) { + DBG_ERR("Failed to copy the response\n"); + goto err_out; + } + } + + os_reset_rcb(rcb); + pqisrc_put_tag(&softs->taglist, request.request_id); + if (iocommand->buf_size > 0) + os_dma_mem_free(softs,&ioctl_dma_buf); + + DBG_FUNC("OUT\n"); + return PQI_STATUS_SUCCESS; + +err_out: + os_reset_rcb(rcb); + pqisrc_put_tag(&softs->taglist, request.request_id); + +free_mem: + if (iocommand->buf_size > 0) + os_dma_mem_free(softs, &ioctl_dma_buf); + +out: + DBG_FUNC("Failed OUT\n"); + return PQI_STATUS_FAILURE; +}
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