185 	struct scsi_cmnd *cmd = task->sc;  in iscsi_prep_ecdb_ahs()
222 	struct scsi_cmnd *sc = task->sc;  in iscsi_prep_bidi_ahs()  local
236 	rlen_ahdr->read_length = cpu_to_be32(scsi_in(sc)->length);  in iscsi_prep_bidi_ahs()
277 		if (hdr_lun != task->sc->device->lun)  in iscsi_check_tmf_restrictions()
339 	struct scsi_cmnd *sc = task->sc;  in iscsi_prep_scsi_cmd_pdu()  local
369 	int_to_scsilun(sc->device->lun, &hdr->lun);  in iscsi_prep_scsi_cmd_pdu()
372 	cmd_len = sc->cmd_len;  in iscsi_prep_scsi_cmd_pdu()
381 	memcpy(hdr->cdb, sc->cmnd, cmd_len);  in iscsi_prep_scsi_cmd_pdu()
384 	if (scsi_bidi_cmnd(sc)) {  in iscsi_prep_scsi_cmd_pdu()
391 	if (scsi_get_prot_op(sc) != SCSI_PROT_NORMAL)  in iscsi_prep_scsi_cmd_pdu()
394 	transfer_length = scsi_transfer_length(sc);  in iscsi_prep_scsi_cmd_pdu()
396 	if (sc->sc_data_direction == DMA_TO_DEVICE) {  in iscsi_prep_scsi_cmd_pdu()
443 		if (sc->sc_data_direction == DMA_FROM_DEVICE)  in iscsi_prep_scsi_cmd_pdu()
466 			  scsi_bidi_cmnd(sc) ? "bidirectional" :  in iscsi_prep_scsi_cmd_pdu()
467 			  sc->sc_data_direction == DMA_TO_DEVICE ?  in iscsi_prep_scsi_cmd_pdu()
468 			  "write" : "read", conn->id, sc, sc->cmnd[0],  in iscsi_prep_scsi_cmd_pdu()
470 			  scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0,  in iscsi_prep_scsi_cmd_pdu()
488 	struct scsi_cmnd *sc = task->sc;  in iscsi_free_task()  local
492 			  task->itt, task->state, task->sc);  in iscsi_free_task()
496 	task->sc = NULL;  in iscsi_free_task()
505 	if (sc) {  in iscsi_free_task()
507 		sc->SCp.ptr = NULL;  in iscsi_free_task()
513 			sc->scsi_done(sc);  in iscsi_free_task()
554 			  task->itt, task->state, task->sc);  in iscsi_complete_task()
609 	struct scsi_cmnd *sc;  in fail_scsi_task()  local
617 	sc = task->sc;  in fail_scsi_task()
618 	if (!sc)  in fail_scsi_task()
634 	sc->result = err << 16;  in fail_scsi_task()
635 	if (!scsi_bidi_cmnd(sc))  in fail_scsi_task()
636 		scsi_set_resid(sc, scsi_bufflen(sc));  in fail_scsi_task()
638 		scsi_out(sc)->resid = scsi_out(sc)->length;  in fail_scsi_task()
639 		scsi_in(sc)->resid = scsi_in(sc)->length;  in fail_scsi_task()
749 	task->sc = NULL;  in __iscsi_conn_send_pdu()
832 	struct scsi_cmnd *sc = task->sc;  in iscsi_scsi_cmd_rsp()  local
837 	sc->result = (DID_OK << 16) | rhdr->cmd_status;  in iscsi_scsi_cmd_rsp()
852 			sc->result = DRIVER_SENSE << 24 |  in iscsi_scsi_cmd_rsp()
854 			scsi_build_sense_buffer(1, sc->sense_buffer,  in iscsi_scsi_cmd_rsp()
856 			sc->sense_buffer[7] = 0xc; /* Additional sense length */  in iscsi_scsi_cmd_rsp()
857 			sc->sense_buffer[8] = 0;   /* Information desc type */  in iscsi_scsi_cmd_rsp()
858 			sc->sense_buffer[9] = 0xa; /* Additional desc length */  in iscsi_scsi_cmd_rsp()
859 			sc->sense_buffer[10] = 0x80; /* Validity bit */  in iscsi_scsi_cmd_rsp()
861 			put_unaligned_be64(sector, &sc->sense_buffer[12]);  in iscsi_scsi_cmd_rsp()
867 		sc->result = DID_ERROR << 16;  in iscsi_scsi_cmd_rsp()
879 			sc->result = DID_BAD_TARGET << 16;  in iscsi_scsi_cmd_rsp()
887 		memcpy(sc->sense_buffer, data + 2,  in iscsi_scsi_cmd_rsp()
898 		if (scsi_bidi_cmnd(sc) && res_count > 0 &&  in iscsi_scsi_cmd_rsp()
900 				 res_count <= scsi_in(sc)->length))  in iscsi_scsi_cmd_rsp()
901 			scsi_in(sc)->resid = res_count;  in iscsi_scsi_cmd_rsp()
903 			sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;  in iscsi_scsi_cmd_rsp()
912 		     res_count <= scsi_bufflen(sc)))  in iscsi_scsi_cmd_rsp()
914 			scsi_set_resid(sc, res_count);  in iscsi_scsi_cmd_rsp()
916 			sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;  in iscsi_scsi_cmd_rsp()
920 			  sc, sc->result, task->itt);  in iscsi_scsi_cmd_rsp()
936 	struct scsi_cmnd *sc = task->sc;  in iscsi_data_in_rsp()  local
942 	sc->result = (DID_OK << 16) | rhdr->cmd_status;  in iscsi_data_in_rsp()
950 		     res_count <= scsi_in(sc)->length))  in iscsi_data_in_rsp()
951 			scsi_in(sc)->resid = res_count;  in iscsi_data_in_rsp()
953 			sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;  in iscsi_data_in_rsp()
958 			  sc, sc->result, task->itt);  in iscsi_data_in_rsp()
1356 	if (!task || !task->sc)  in iscsi_itt_to_ctask()
1359 	if (task->sc->SCp.phase != conn->session->age) {  in iscsi_itt_to_ctask()
1362 				  task->sc->SCp.phase, conn->session->age);  in iscsi_itt_to_ctask()
1608 						  struct scsi_cmnd *sc)  in iscsi_alloc_task()  argument
1616 	sc->SCp.phase = conn->session->age;  in iscsi_alloc_task()
1617 	sc->SCp.ptr = (char *) task;  in iscsi_alloc_task()
1622 	task->sc = sc;  in iscsi_alloc_task()
1644 int iscsi_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc)  in iscsi_queuecommand()  argument
1653 	sc->result = 0;  in iscsi_queuecommand()
1654 	sc->SCp.ptr = NULL;  in iscsi_queuecommand()
1658 	cls_session = starget_to_session(scsi_target(sc->device));  in iscsi_queuecommand()
1664 		sc->result = reason;  in iscsi_queuecommand()
1679 			sc->result = DID_IMM_RETRY << 16;  in iscsi_queuecommand()
1683 			sc->result = DID_IMM_RETRY << 16;  in iscsi_queuecommand()
1687 			sc->result = DID_TRANSPORT_FAILFAST << 16;  in iscsi_queuecommand()
1691 			sc->result = DID_NO_CONNECT << 16;  in iscsi_queuecommand()
1695 			sc->result = DID_NO_CONNECT << 16;  in iscsi_queuecommand()
1703 		sc->result = DID_NO_CONNECT << 16;  in iscsi_queuecommand()
1709 		sc->result = DID_REQUEUE;  in iscsi_queuecommand()
1718 	task = iscsi_alloc_task(conn, sc);  in iscsi_queuecommand()
1731 				sc->result = DID_ABORT << 16;  in iscsi_queuecommand()
1754 			  sc->cmnd[0], reason);  in iscsi_queuecommand()
1762 			  sc->cmnd[0], reason);  in iscsi_queuecommand()
1763 	if (!scsi_bidi_cmnd(sc))  in iscsi_queuecommand()
1764 		scsi_set_resid(sc, scsi_bufflen(sc));  in iscsi_queuecommand()
1766 		scsi_out(sc)->resid = scsi_out(sc)->length;  in iscsi_queuecommand()
1767 		scsi_in(sc)->resid = scsi_in(sc)->length;  in iscsi_queuecommand()
1769 	sc->scsi_done(sc);  in iscsi_queuecommand()
1860 		if (!task->sc || task->state == ISCSI_TASK_FREE)  in fail_scsi_tasks()
1863 		if (lun != -1 && lun != task->sc->device->lun)  in fail_scsi_tasks()
1868 				  task->sc, task->itt, task->state);  in fail_scsi_tasks()
1933 static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *sc)  in iscsi_eh_cmd_timed_out()  argument
1942 	cls_session = starget_to_session(scsi_target(sc->device));  in iscsi_eh_cmd_timed_out()
1945 	ISCSI_DBG_EH(session, "scsi cmd %p timedout\n", sc);  in iscsi_eh_cmd_timed_out()
1948 	task = (struct iscsi_task *)sc->SCp.ptr;  in iscsi_eh_cmd_timed_out()
2004 		if (!running_task->sc || running_task == task ||  in iscsi_eh_cmd_timed_out()
2012 		if (time_after(running_task->sc->jiffies_at_alloc,  in iscsi_eh_cmd_timed_out()
2013 			       task->sc->jiffies_at_alloc))  in iscsi_eh_cmd_timed_out()
2121 int iscsi_eh_abort(struct scsi_cmnd *sc)  in iscsi_eh_abort()  argument
2130 	cls_session = starget_to_session(scsi_target(sc->device));  in iscsi_eh_abort()
2133 	ISCSI_DBG_EH(session, "aborting sc %p\n", sc);  in iscsi_eh_abort()
2141 	if (!sc->SCp.ptr) {  in iscsi_eh_abort()
2154 	    sc->SCp.phase != session->age) {  in iscsi_eh_abort()
2166 	task = (struct iscsi_task *)sc->SCp.ptr;  in iscsi_eh_abort()
2168 		     sc, task->itt);  in iscsi_eh_abort()
2171 	if (!task->sc) {  in iscsi_eh_abort()
2219 		if (!sc->SCp.ptr) {  in iscsi_eh_abort()
2237 		     sc, task->itt);  in iscsi_eh_abort()
2244 	ISCSI_DBG_EH(session, "abort failed [sc %p itt 0x%x]\n", sc,  in iscsi_eh_abort()
2251 static void iscsi_prep_lun_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr)  in iscsi_prep_lun_reset_pdu()  argument
2257 	int_to_scsilun(sc->device->lun, &hdr->lun);  in iscsi_prep_lun_reset_pdu()
2261 int iscsi_eh_device_reset(struct scsi_cmnd *sc)  in iscsi_eh_device_reset()  argument
2269 	cls_session = starget_to_session(scsi_target(sc->device));  in iscsi_eh_device_reset()
2272 	ISCSI_DBG_EH(session, "LU Reset [sc %p lun %llu]\n", sc,  in iscsi_eh_device_reset()
2273 		     sc->device->lun);  in iscsi_eh_device_reset()
2291 	iscsi_prep_lun_reset_pdu(sc, hdr);  in iscsi_eh_device_reset()
2318 	fail_scsi_tasks(conn, sc->device->lun, DID_ERROR);  in iscsi_eh_device_reset()
2356 int iscsi_eh_session_reset(struct scsi_cmnd *sc)  in iscsi_eh_session_reset()  argument
2362 	cls_session = starget_to_session(scsi_target(sc->device));  in iscsi_eh_session_reset()
2409 static void iscsi_prep_tgt_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr)  in iscsi_prep_tgt_reset_pdu()  argument
2424 int iscsi_eh_target_reset(struct scsi_cmnd *sc)  in iscsi_eh_target_reset()  argument
2432 	cls_session = starget_to_session(scsi_target(sc->device));  in iscsi_eh_target_reset()
2435 	ISCSI_DBG_EH(session, "tgt Reset [sc %p tgt %s]\n", sc,  in iscsi_eh_target_reset()
2454 	iscsi_prep_tgt_reset_pdu(sc, hdr);  in iscsi_eh_target_reset()
2505 int iscsi_eh_recover_target(struct scsi_cmnd *sc)  in iscsi_eh_recover_target()  argument
2509 	rc = iscsi_eh_target_reset(sc);  in iscsi_eh_recover_target()
2511 		rc = iscsi_eh_session_reset(sc);  in iscsi_eh_recover_target()
3057 		if (task->sc)  in fail_mgmt_tasks()