scsi/ibmvscsi_tgt/ibmvscsi_tgt.c

54 				    struct viosrp_crq *crq);
102 	struct viosrp_crq *crq;
107 	/* create a PING crq */
108 	crq = (struct viosrp_crq *)&buffer;
109 	crq->valid = VALID_CMD_RESP_EL;
110 	crq->format = MESSAGE_IN_CRQ;
111 	crq->status = PING;
333 	struct viosrp_crq *crq;
337 	crq = (struct viosrp_crq *)&buffer;
338 	crq->valid = VALID_INIT_MSG;
339 	crq->format = format;
360 	struct viosrp_crq *crq;
363 	crq = ibmvscsis_cmd_q_dequeue(vscsi->cmd_q.mask, &vscsi->cmd_q.index,
365 	if (!crq) {
367 	} else if (crq->valid == VALID_INIT_MSG && crq->format == INIT_MSG) {
369 		crq->valid = INVALIDATE_CMD_RESP_EL;
377 		crq = ibmvscsis_cmd_q_dequeue(vscsi->cmd_q.mask,
380 		if (crq) {
381 			*format = (uint)(crq->format);
383 			crq->valid = INVALIDATE_CMD_RESP_EL;
387 		*format = (uint)(crq->format);
389 		crq->valid = INVALIDATE_CMD_RESP_EL;
756  * @crq:	Pointer to CRQ element containing the Init Message
761 static long ibmvscsis_init_msg(struct scsi_info *vscsi, struct viosrp_crq *crq)
780 	if (crq->format == INIT_MSG) {
782 	} else if (crq->format == INIT_COMPLETE_MSG) {
787 			(uint)crq->format);
979 	struct viosrp_crq *crq;
982 	crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
985 		vscsi->flags, vscsi->state, (int)crq->valid);
987 	if (!(vscsi->flags & PREP_FOR_SUSPEND_ABORTED) && !(crq->valid)) {
997 		   ((crq->valid) && ((crq->valid != VALID_TRANS_EVENT) ||
998 				     (crq->format != RESUME_FROM_SUSP)))) {
1010 		if ((crq->valid) && ((crq->valid != VALID_TRANS_EVENT) ||
1011 				     (crq->format != RESUME_FROM_SUSP)))
1023  * @crq:	Pointer to CRQ entry containing the Transport Event
1032 				  struct viosrp_crq *crq)
1037 		(int)crq->format, vscsi->flags, vscsi->state);
1039 	switch (crq->format) {
1044 		if (crq->format == MIGRATED)
1097 		dev_dbg(&vscsi->dev, "Prep for Suspend, crq status = 0x%x\n",
1098 			(int)crq->status);
1108 			if (crq->status == CRQ_ENTRY_OVERWRITTEN)
1126 		dev_dbg(&vscsi->dev, "Resume from Suspend, crq status = 0x%x\n",
1127 			(int)crq->status);
1131 			if ((crq->status == CRQ_ENTRY_OVERWRITTEN) ||
1144 			(uint)crq->format);
1170 	struct viosrp_crq *crq;
1179 	crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
1180 	valid = crq->valid;
1189 			rc = ibmvscsis_parse_command(vscsi, crq);
1191 			if ((uint)crq->valid == VALID_TRANS_EVENT) {
1198 				rc = ibmvscsis_trans_event(vscsi, crq);
1222 		crq->valid = INVALIDATE_CMD_RESP_EL;
1224 		crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
1225 		valid = crq->valid;
1235 		valid = crq->valid;
1433  * @crq:	Pointer to CRQ entry containing the request
1443 				      struct viosrp_crq *crq)
1449 	len = be16_to_cpu(crq->IU_length);
1457 			 be64_to_cpu(crq->IU_data_ptr),
1463 		iue->remote_token = crq->IU_data_ptr;
1466 			be64_to_cpu(crq->IU_data_ptr), cmd->init_time);
1854 			dev_err(&vscsi->dev, "client crq full too long\n");
1876 	struct viosrp_crq *crq = &empty_crq;
1931 					crq->valid = VALID_CMD_RESP_EL;
1932 					crq->format = cmd->rsp.format;
1935 						crq->status = VIOSRP_ADAPTER_FAIL;
1937 					crq->IU_length = cpu_to_be16(cmd->rsp.len);
1940 							be64_to_cpu(crq->high),
1981 				    struct viosrp_crq *crq)
1992 			 be64_to_cpu(crq->IU_data_ptr));
2018  * @crq:	Pointer to the CRQ entry containing the MAD request
2023 static long ibmvscsis_mad(struct scsi_info *vscsi, struct viosrp_crq *crq)
2069 	rc = ibmvscsis_copy_crq_packet(vscsi, cmd, crq);
2081 			ibmvscsis_send_mad_resp(vscsi, cmd, crq);
2267  * @crq:	Pointer to CRQ entry containing the SRP Login request
2274 				struct viosrp_crq *crq)
2338  * @crq:	Pointer to CRQ entry containing the Implicit Logout request
2348 				   struct viosrp_crq *crq)
2371 static void ibmvscsis_srp_cmd(struct scsi_info *vscsi, struct viosrp_crq *crq)
2397 	rc = ibmvscsis_copy_crq_packet(vscsi, cmd, crq);
2406 			rc = ibmvscsis_srp_login(vscsi, cmd, crq);
2435 			rc = ibmvscsis_srp_i_logout(vscsi, cmd, crq);
2449 		rc = ibmvscsis_srp_login(vscsi, cmd, crq);
2473 	struct viosrp_crq *crq;
2477 	crq = (struct viosrp_crq *)&buffer;
2478 	crq->valid = VALID_CMD_RESP_EL;
2479 	crq->format = (u8)MESSAGE_IN_CRQ;
2480 	crq->status = PING_RESPONSE;
2512  * @crq:	Pointer to CRQ element containing the SRP request
2522 				    struct viosrp_crq *crq)
2526 	switch (crq->valid) {
2528 		switch (crq->format) {
2541 				rc = ibmvscsis_mad(vscsi, crq);
2546 			ibmvscsis_srp_cmd(vscsi, crq);
2550 			if (crq->status == PING)
2556 				(uint)crq->format);
2564 		rc = ibmvscsis_trans_event(vscsi, crq);
2568 		rc = ibmvscsis_init_msg(vscsi, crq);
2573 			(uint)crq->valid);
3323 	struct viosrp_crq *crq;
3347 	crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
3348 	valid = crq->valid;
3363 			rc = ibmvscsis_parse_command(vscsi, crq);
3365 			if ((uint)crq->valid == VALID_TRANS_EVENT) {
3372 				rc = ibmvscsis_trans_event(vscsi, crq);
3393 		crq->valid = INVALIDATE_CMD_RESP_EL;
3395 		crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
3396 		valid = crq->valid;
3406 		valid = crq->valid;
3411 		dev_dbg(&vscsi->dev, "handle_crq, error: flags 0x%x, state 0x%hx, crq index 0x%x\n",