target/loopback/tcm_loop.c

69 	struct scsi_cmnd *sc = tl_cmd->sc;
74 		scsi_done(sc);
104 	struct scsi_cmnd *sc = tl_cmd->sc;
111 	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
112 	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
115 	 * Ensure that this tl_tpg reference from the incoming sc->device->id
119 		set_host_byte(sc, DID_NO_CONNECT);
123 		set_host_byte(sc, DID_TRANSPORT_DISRUPTED);
128 		scmd_printk(KERN_ERR, sc,
130 		set_host_byte(sc, DID_ERROR);
134 	transfer_length = scsi_transfer_length(sc);
135 	if (!scsi_prot_sg_count(sc) &&
136 	    scsi_get_prot_op(sc) != SCSI_PROT_NORMAL) {
143 		transfer_length = scsi_bufflen(sc);
148 			tl_cmd->sc->device->lun, transfer_length,
149 			TCM_SIMPLE_TAG, sc->sc_data_direction, 0);
151 	if (target_submit_prep(se_cmd, sc->cmnd, scsi_sglist(sc),
152 			       scsi_sg_count(sc), sgl_bidi, sgl_bidi_count,
153 			       scsi_prot_sglist(sc), scsi_prot_sg_count(sc),
161 	scsi_done(sc);
168 static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc)
170 	struct tcm_loop_cmd *tl_cmd = scsi_cmd_priv(sc);
173 		 __func__, sc->device->host->host_no, sc->device->id,
174 		 sc->device->channel, sc->device->lun, sc->cmnd[0],
175 		 scsi_bufflen(sc));
178 	tl_cmd->sc = sc;
179 	tl_cmd->sc_cmd_tag = scsi_cmd_to_rq(sc)->tag;
233 static int tcm_loop_abort_task(struct scsi_cmnd *sc)
242 	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
243 	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
244 	ret = tcm_loop_issue_tmr(tl_tpg, sc->device->lun,
245 				 scsi_cmd_to_rq(sc)->tag, TMR_ABORT_TASK);
253 static int tcm_loop_device_reset(struct scsi_cmnd *sc)
262 	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
263 	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
265 	ret = tcm_loop_issue_tmr(tl_tpg, sc->device->lun,
270 static int tcm_loop_target_reset(struct scsi_cmnd *sc)
278 	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
284 	 * Locate the tl_tpg pointer from TargetID in sc->device->id
286 	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
500 	 * sc->sc_data_direction of DMA_TO_DEVICE with struct scatterlist array
516 	struct scsi_cmnd *sc = tl_cmd->sc;
519 		 func, sc, sc->cmnd[0]);
525 		memcpy(sc->sense_buffer, se_cmd->sense_buffer,
527 		sc->result = SAM_STAT_CHECK_CONDITION;
529 		sc->result = scsi_status;
531 	set_host_byte(sc, DID_OK);
534 		scsi_set_resid(sc, se_cmd->residual_count);