examples/scsi_target/scsi_cmds.c

75 					 struct ccb_scsiio *ctio, int dir);
135 tcmd_handle(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio, io_ops event)
143 		warnx("tcmd_handle atio %p ctio %p atioflags %#x", atio, ctio,
163 			last_cmd->done(atio, ctio, event);
165 			free_ccb((union ccb *)ctio);
176 		tcmd_illegal_req(atio, ctio);
177 		send_ccb((union ccb *)ctio, /*priority*/1);
181 	istate = tcmd_get_istate(ctio->init_id);
183 		tcmd_illegal_req(atio, ctio);
184 		send_ccb((union ccb *)ctio, /*priority*/1);
190 		tcmd_sense(ctio->init_id, ctio, SSD_KEY_UNIT_ATTENTION,
197 		send_ccb((union ccb *)ctio, /*priority*/1);
218 		ret = last_cmd->start(atio, ctio);
221 			a_descr->init_req += ctio->dxfer_len;
222 			send_ccb((union ccb *)ctio, /*priority*/1);
241 tcmd_sense(u_int init_id, struct ccb_scsiio *ctio, u_int8_t flags,
263 	if (ctio != NULL) {
264 		bcopy(sense, &ctio->sense_data, sizeof(*sense));
265 		ctio->sense_len = sizeof(*sense);  /* XXX */
266 		ctio->ccb_h.flags &= ~CAM_DIR_MASK;
267 		ctio->ccb_h.flags |= CAM_DIR_NONE | CAM_SEND_SENSE |
269 		ctio->dxfer_len = 0;
270 		ctio->scsi_status = SCSI_STATUS_CHECK_COND;
296 tcmd_inquiry(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
312 	istate = tcmd_get_istate(ctio->init_id);
315 		tcmd_illegal_req(atio, ctio);
322 		tcmd_illegal_req(atio, ctio);
328 		bcopy(&inq_data, ctio->data_ptr, sizeof(inq_data));
329 		ctio->dxfer_len = inq_data.additional_length + 4;
330 		ctio->dxfer_len = min(ctio->dxfer_len,
332 		ctio->ccb_h.flags |= CAM_DIR_IN | CAM_SEND_STATUS;
333 		ctio->scsi_status = SCSI_STATUS_OK;
376 tcmd_req_sense(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
387 	istate = tcmd_get_istate(ctio->init_id);
397 		tcmd_sense(ctio->init_id, NULL, SSD_KEY_NO_SENSE, 0, 0);
399 		      ctio->init_id);
402 	bcopy(sense, ctio->data_ptr, sizeof(struct scsi_sense_data));
405 	ctio->dxfer_len = min(dlen, SCSI_CDB6_LEN(rsense->length));
406 	ctio->ccb_h.flags |= CAM_DIR_IN | CAM_SEND_STATUS;
407 	ctio->scsi_status = SCSI_STATUS_OK;
412 tcmd_rd_cap(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
419 	srp = (struct scsi_read_capacity_data *)ctio->data_ptr;
435 	ctio->dxfer_len = sizeof(*srp);
436 	ctio->ccb_h.flags |= CAM_DIR_IN | CAM_SEND_STATUS;
437 	ctio->scsi_status = SCSI_STATUS_OK;
443 tcmd_rd_cap16(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
451 	srp = (struct scsi_read_capacity_data_long *)ctio->data_ptr;
454 		tcmd_illegal_req(atio, ctio);
467 	ctio->dxfer_len = sizeof(*srp);
468 	ctio->ccb_h.flags |= CAM_DIR_IN | CAM_SEND_STATUS;
469 	ctio->scsi_status = SCSI_STATUS_OK;
475 tcmd_rdwr(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
482 	c_descr = (struct ctio_descr *)ctio->ccb_h.targ_descr;
488 		ret = tcmd_rdwr_decode(atio, ctio);
490 			send_ccb((union ccb *)ctio, /*priority*/1);
494 	ctio->ccb_h.flags |= a_descr->flags;
498 		ret = start_io(atio, ctio, CAM_DIR_IN);
503 		ret = start_io(atio, ctio, CAM_DIR_OUT);
513 tcmd_rdwr_decode(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
553 		tcmd_illegal_req(atio, ctio);
558 		tcmd_sense(ctio->init_id, ctio,
569 		tcmd_null_ok(atio, ctio);
584 start_io(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio, int dir)
592 	c_descr = (struct ctio_descr *)ctio->ccb_h.targ_descr;
596 		ctio->dxfer_len = a_descr->total_len - a_descr->targ_req;
599 		ctio->dxfer_len = a_descr->total_len - a_descr->init_req;
601 	ctio->dxfer_len = min(ctio->dxfer_len, buf_size);
602 	assert(ctio->dxfer_len >= 0);
605 	c_descr->aiocb.aio_nbytes = ctio->dxfer_len;
614 				    (ctio->dxfer_len / sector_size),
623 			    ctio->dxfer_len) != ctio->dxfer_len) {
630 				    (ctio->dxfer_len / sector_size),
636 		a_descr->targ_req += ctio->dxfer_len;
639 			ctio->ccb_h.flags |= CAM_SEND_STATUS;
640 			ctio->scsi_status = SCSI_STATUS_OK;
644 			tcmd_rdwr_done(atio, ctio, AIO_DONE);
647 			tcmd_null_ok(atio, ctio);
648 		a_descr->init_req += ctio->dxfer_len;
650 		    ctio->dxfer_len > 0) {
658 		send_ccb((union ccb *)ctio, /*priority*/1);
665 tcmd_rdwr_done(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio,
672 	c_descr = (struct ctio_descr *)ctio->ccb_h.targ_descr;
679 			tcmd_sense(ctio->init_id, ctio,
681 			send_ccb((union ccb *)ctio, /*priority*/1);
684 		a_descr->targ_ack += ctio->dxfer_len;
692 			a_descr->init_req += ctio->dxfer_len;
693 			send_ccb((union ccb *)ctio, /*priority*/1);
700 			free_ccb((union ccb *)ctio);
704 		switch (ctio->ccb_h.status & CAM_STATUS_MASK) {
720 			errx(1, "CTIO failed, status %#x", ctio->ccb_h.status);
722 		a_descr->init_ack += ctio->dxfer_len;
724 		    ctio->dxfer_len > 0) {
725 			a_descr->targ_req += ctio->dxfer_len;
730 					    (ctio->dxfer_len / sector_size),
739 				    ctio->dxfer_len) != ctio->dxfer_len) {
742 				tcmd_rdwr_done(atio, ctio, AIO_DONE);
747 					    (ctio->dxfer_len / sector_size),
756 			free_ccb((union ccb *)ctio);
768 tcmd_null_ok(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
777 	ctio->dxfer_len = 0;
778 	ctio->ccb_h.flags &= ~CAM_DIR_MASK;
779 	ctio->ccb_h.flags |= CAM_DIR_NONE | CAM_SEND_STATUS;
780 	ctio->scsi_status = SCSI_STATUS_OK;
786 tcmd_illegal_req(struct ccb_accept_tio *atio, struct ccb_scsiio *ctio)
795 	tcmd_sense(atio->init_id, ctio, SSD_KEY_ILLEGAL_REQUEST,