260 	void (*callback)(struct sbp2_orb * orb, struct sbp2_status * status);
400 	struct sbp2_orb *orb = container_of(kref, struct sbp2_orb, kref);  in free_orb()  local
402 	kfree(orb);  in free_orb()
411 	struct sbp2_orb *orb = NULL, *iter;  in sbp2_status_write()  local
441 			orb = iter;  in sbp2_status_write()
447 	if (orb) {  in sbp2_status_write()
448 		orb->callback(orb, &status);  in sbp2_status_write()
449 		kref_put(&orb->kref, free_orb); /* orb callback reference */  in sbp2_status_write()
460 	struct sbp2_orb *orb = data;  in complete_transaction()  local
472 	spin_lock_irqsave(&orb->lu->tgt->lock, flags);  in complete_transaction()
474 	if (orb->rcode == -1)  in complete_transaction()
475 		orb->rcode = rcode;  in complete_transaction()
476 	if (orb->rcode != RCODE_COMPLETE) {  in complete_transaction()
477 		list_del(&orb->link);  in complete_transaction()
478 		spin_unlock_irqrestore(&orb->lu->tgt->lock, flags);  in complete_transaction()
480 		orb->callback(orb, NULL);  in complete_transaction()
481 		kref_put(&orb->kref, free_orb); /* orb callback reference */  in complete_transaction()
483 		spin_unlock_irqrestore(&orb->lu->tgt->lock, flags);  in complete_transaction()
486 	kref_put(&orb->kref, free_orb); /* transaction callback reference */  in complete_transaction()
489 static void sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu,  in sbp2_send_orb()  argument
497 	orb_pointer.low = cpu_to_be32(orb->request_bus);  in sbp2_send_orb()
499 	orb->lu = lu;  in sbp2_send_orb()
501 	list_add_tail(&orb->link, &lu->orb_list);  in sbp2_send_orb()
504 	kref_get(&orb->kref); /* transaction callback reference */  in sbp2_send_orb()
505 	kref_get(&orb->kref); /* orb callback reference */  in sbp2_send_orb()
507 	fw_send_request(device->card, &orb->t, TCODE_WRITE_BLOCK_REQUEST,  in sbp2_send_orb()
509 			&orb_pointer, 8, complete_transaction, orb);  in sbp2_send_orb()
515 	struct sbp2_orb *orb, *next;  in sbp2_cancel_orbs()  local
524 	list_for_each_entry_safe(orb, next, &list, link) {  in sbp2_cancel_orbs()
526 		if (fw_cancel_transaction(device->card, &orb->t) == 0)  in sbp2_cancel_orbs()
529 		orb->rcode = RCODE_CANCELLED;  in sbp2_cancel_orbs()
530 		orb->callback(orb, NULL);  in sbp2_cancel_orbs()
531 		kref_put(&orb->kref, free_orb); /* orb callback reference */  in sbp2_cancel_orbs()
540 	struct sbp2_management_orb *orb =  in complete_management_orb()  local
544 		memcpy(&orb->status, status, sizeof(*status));  in complete_management_orb()
545 	complete(&orb->done);  in complete_management_orb()
553 	struct sbp2_management_orb *orb;  in sbp2_send_management_orb()  local
560 	orb = kzalloc(sizeof(*orb), GFP_NOIO);  in sbp2_send_management_orb()
561 	if (orb == NULL)  in sbp2_send_management_orb()
564 	kref_init(&orb->base.kref);  in sbp2_send_management_orb()
565 	orb->response_bus =  in sbp2_send_management_orb()
566 		dma_map_single(device->card->device, &orb->response,  in sbp2_send_management_orb()
567 			       sizeof(orb->response), DMA_FROM_DEVICE);  in sbp2_send_management_orb()
568 	if (dma_mapping_error(device->card->device, orb->response_bus))  in sbp2_send_management_orb()
571 	orb->request.response.high = 0;  in sbp2_send_management_orb()
572 	orb->request.response.low  = cpu_to_be32(orb->response_bus);  in sbp2_send_management_orb()
574 	orb->request.misc = cpu_to_be32(  in sbp2_send_management_orb()
578 	orb->request.length = cpu_to_be32(  in sbp2_send_management_orb()
579 		MANAGEMENT_ORB_RESPONSE_LENGTH(sizeof(orb->response)));  in sbp2_send_management_orb()
581 	orb->request.status_fifo.high =  in sbp2_send_management_orb()
583 	orb->request.status_fifo.low  =  in sbp2_send_management_orb()
588 		orb->request.misc |= cpu_to_be32(  in sbp2_send_management_orb()
596 	init_completion(&orb->done);  in sbp2_send_management_orb()
597 	orb->base.callback = complete_management_orb;  in sbp2_send_management_orb()
599 	orb->base.request_bus =  in sbp2_send_management_orb()
600 		dma_map_single(device->card->device, &orb->request,  in sbp2_send_management_orb()
601 			       sizeof(orb->request), DMA_TO_DEVICE);  in sbp2_send_management_orb()
602 	if (dma_mapping_error(device->card->device, orb->base.request_bus))  in sbp2_send_management_orb()
605 	sbp2_send_orb(&orb->base, lu, node_id, generation,  in sbp2_send_management_orb()
608 	wait_for_completion_timeout(&orb->done, msecs_to_jiffies(timeout));  in sbp2_send_management_orb()
613 			orb->base.rcode);  in sbp2_send_management_orb()
617 	if (orb->base.rcode != RCODE_COMPLETE) {  in sbp2_send_management_orb()
619 			orb->base.rcode);  in sbp2_send_management_orb()
623 	if (STATUS_GET_RESPONSE(orb->status) != 0 ||  in sbp2_send_management_orb()
624 	    STATUS_GET_SBP_STATUS(orb->status) != 0) {  in sbp2_send_management_orb()
626 			 STATUS_GET_RESPONSE(orb->status),  in sbp2_send_management_orb()
627 			 STATUS_GET_SBP_STATUS(orb->status));  in sbp2_send_management_orb()
633 	dma_unmap_single(device->card->device, orb->base.request_bus,  in sbp2_send_management_orb()
634 			 sizeof(orb->request), DMA_TO_DEVICE);  in sbp2_send_management_orb()
636 	dma_unmap_single(device->card->device, orb->response_bus,  in sbp2_send_management_orb()
637 			 sizeof(orb->response), DMA_FROM_DEVICE);  in sbp2_send_management_orb()
640 		memcpy(response, orb->response, sizeof(orb->response));  in sbp2_send_management_orb()
641 	kref_put(&orb->base.kref, free_orb);  in sbp2_send_management_orb()
1280 				   struct sbp2_command_orb *orb)  in sbp2_unmap_scatterlist()  argument
1282 	scsi_dma_unmap(orb->cmd);  in sbp2_unmap_scatterlist()
1284 	if (orb->request.misc & cpu_to_be32(COMMAND_ORB_PAGE_TABLE_PRESENT))  in sbp2_unmap_scatterlist()
1285 		dma_unmap_single(card_device, orb->page_table_bus,  in sbp2_unmap_scatterlist()
1286 				 sizeof(orb->page_table), DMA_TO_DEVICE);  in sbp2_unmap_scatterlist()
1338 	struct sbp2_command_orb *orb =  in complete_command_orb()  local
1363 							   orb->cmd->sense_buffer);  in complete_command_orb()
1374 	dma_unmap_single(device->card->device, orb->base.request_bus,  in complete_command_orb()
1375 			 sizeof(orb->request), DMA_TO_DEVICE);  in complete_command_orb()
1376 	sbp2_unmap_scatterlist(device->card->device, orb);  in complete_command_orb()
1378 	orb->cmd->result = result;  in complete_command_orb()
1379 	scsi_done(orb->cmd);  in complete_command_orb()
1382 static int sbp2_map_scatterlist(struct sbp2_command_orb *orb,  in sbp2_map_scatterlist()  argument
1385 	struct scatterlist *sg = scsi_sglist(orb->cmd);  in sbp2_map_scatterlist()
1388 	n = scsi_dma_map(orb->cmd);  in sbp2_map_scatterlist()
1400 		orb->request.data_descriptor.high =  in sbp2_map_scatterlist()
1402 		orb->request.data_descriptor.low  =  in sbp2_map_scatterlist()
1404 		orb->request.misc |=  in sbp2_map_scatterlist()
1410 		orb->page_table[i].high = cpu_to_be32(sg_dma_len(sg) << 16);  in sbp2_map_scatterlist()
1411 		orb->page_table[i].low = cpu_to_be32(sg_dma_address(sg));  in sbp2_map_scatterlist()
1414 	orb->page_table_bus =  in sbp2_map_scatterlist()
1415 		dma_map_single(device->card->device, orb->page_table,  in sbp2_map_scatterlist()
1416 			       sizeof(orb->page_table), DMA_TO_DEVICE);  in sbp2_map_scatterlist()
1417 	if (dma_mapping_error(device->card->device, orb->page_table_bus))  in sbp2_map_scatterlist()
1427 	orb->request.data_descriptor.high = cpu_to_be32(lu->tgt->address_high);  in sbp2_map_scatterlist()
1428 	orb->request.data_descriptor.low  = cpu_to_be32(orb->page_table_bus);  in sbp2_map_scatterlist()
1429 	orb->request.misc |= cpu_to_be32(COMMAND_ORB_PAGE_TABLE_PRESENT |  in sbp2_map_scatterlist()
1435 	scsi_dma_unmap(orb->cmd);  in sbp2_map_scatterlist()
1447 	struct sbp2_command_orb *orb;  in sbp2_scsi_queuecommand()  local
1450 	orb = kzalloc(sizeof(*orb), GFP_ATOMIC);  in sbp2_scsi_queuecommand()
1451 	if (orb == NULL)  in sbp2_scsi_queuecommand()
1455 	orb->base.rcode = -1;  in sbp2_scsi_queuecommand()
1456 	kref_init(&orb->base.kref);  in sbp2_scsi_queuecommand()
1457 	orb->cmd = cmd;  in sbp2_scsi_queuecommand()
1458 	orb->request.next.high = cpu_to_be32(SBP2_ORB_NULL);  in sbp2_scsi_queuecommand()
1459 	orb->request.misc = cpu_to_be32(  in sbp2_scsi_queuecommand()
1465 		orb->request.misc |= cpu_to_be32(COMMAND_ORB_DIRECTION);  in sbp2_scsi_queuecommand()
1470 	if (scsi_sg_count(cmd) && sbp2_map_scatterlist(orb, device, lu) < 0)  in sbp2_scsi_queuecommand()
1473 	memcpy(orb->request.command_block, cmd->cmnd, cmd->cmd_len);  in sbp2_scsi_queuecommand()
1475 	orb->base.callback = complete_command_orb;  in sbp2_scsi_queuecommand()
1476 	orb->base.request_bus =  in sbp2_scsi_queuecommand()
1477 		dma_map_single(device->card->device, &orb->request,  in sbp2_scsi_queuecommand()
1478 			       sizeof(orb->request), DMA_TO_DEVICE);  in sbp2_scsi_queuecommand()
1479 	if (dma_mapping_error(device->card->device, orb->base.request_bus)) {  in sbp2_scsi_queuecommand()
1480 		sbp2_unmap_scatterlist(device->card->device, orb);  in sbp2_scsi_queuecommand()
1484 	sbp2_send_orb(&orb->base, lu, lu->tgt->node_id, generation,  in sbp2_scsi_queuecommand()
1488 	kref_put(&orb->base.kref, free_orb);  in sbp2_scsi_queuecommand()