3805 static int ibmvfc_toggle_scrq_irq(struct ibmvfc_queue *scrq, int enable)  in ibmvfc_toggle_scrq_irq()  argument
3807 	struct device *dev = scrq->vhost->dev;  in ibmvfc_toggle_scrq_irq()
3816 				scrq->hw_irq, 0, 0);  in ibmvfc_toggle_scrq_irq()
3820 			enable ? "enable" : "disable", scrq->hwq_id, rc);  in ibmvfc_toggle_scrq_irq()
3861 static struct ibmvfc_crq *ibmvfc_next_scrq(struct ibmvfc_queue *scrq)  in ibmvfc_next_scrq()  argument
3865 	crq = &scrq->msgs.scrq[scrq->cur].crq;  in ibmvfc_next_scrq()
3867 		if (++scrq->cur == scrq->size)  in ibmvfc_next_scrq()
3868 			scrq->cur = 0;  in ibmvfc_next_scrq()
3876 static void ibmvfc_drain_sub_crq(struct ibmvfc_queue *scrq)  in ibmvfc_drain_sub_crq()  argument
3884 	spin_lock_irqsave(scrq->q_lock, flags);  in ibmvfc_drain_sub_crq()
3886 		while ((crq = ibmvfc_next_scrq(scrq)) != NULL) {  in ibmvfc_drain_sub_crq()
3887 			ibmvfc_handle_scrq(crq, scrq->vhost, &evt_doneq);  in ibmvfc_drain_sub_crq()
3892 		ibmvfc_toggle_scrq_irq(scrq, 1);  in ibmvfc_drain_sub_crq()
3893 		if ((crq = ibmvfc_next_scrq(scrq)) != NULL) {  in ibmvfc_drain_sub_crq()
3894 			ibmvfc_toggle_scrq_irq(scrq, 0);  in ibmvfc_drain_sub_crq()
3895 			ibmvfc_handle_scrq(crq, scrq->vhost, &evt_doneq);  in ibmvfc_drain_sub_crq()
3901 	spin_unlock_irqrestore(scrq->q_lock, flags);  in ibmvfc_drain_sub_crq()
3913 	struct ibmvfc_queue *scrq = (struct ibmvfc_queue *)scrq_instance;  in ibmvfc_interrupt_scsi()  local
3915 	ibmvfc_toggle_scrq_irq(scrq, 0);  in ibmvfc_interrupt_scsi()
3916 	ibmvfc_drain_sub_crq(scrq);  in ibmvfc_interrupt_scsi()
5782 		fmt_size = sizeof(*queue->msgs.scrq);  in ibmvfc_alloc_queue()
5884 	struct ibmvfc_queue *scrq = &vhost->scsi_scrqs.scrqs[index];  in ibmvfc_register_scsi_channel()  local
5889 	rc = h_reg_sub_crq(vdev->unit_address, scrq->msg_token, PAGE_SIZE,  in ibmvfc_register_scsi_channel()
5890 			   &scrq->cookie, &scrq->hw_irq);  in ibmvfc_register_scsi_channel()
5900 	scrq->irq = irq_create_mapping(NULL, scrq->hw_irq);  in ibmvfc_register_scsi_channel()
5902 	if (!scrq->irq) {  in ibmvfc_register_scsi_channel()
5908 	snprintf(scrq->name, sizeof(scrq->name), "ibmvfc-%x-scsi%d",  in ibmvfc_register_scsi_channel()
5910 	rc = request_irq(scrq->irq, ibmvfc_interrupt_scsi, 0, scrq->name, scrq);  in ibmvfc_register_scsi_channel()
5914 		irq_dispose_mapping(scrq->irq);  in ibmvfc_register_scsi_channel()
5918 	scrq->hwq_id = index;  in ibmvfc_register_scsi_channel()
5925 		rc = plpar_hcall_norets(H_FREE_SUB_CRQ, vdev->unit_address, scrq->cookie);  in ibmvfc_register_scsi_channel()
5936 	struct ibmvfc_queue *scrq = &vhost->scsi_scrqs.scrqs[index];  in ibmvfc_deregister_scsi_channel()  local
5941 	free_irq(scrq->irq, scrq);  in ibmvfc_deregister_scsi_channel()
5942 	irq_dispose_mapping(scrq->irq);  in ibmvfc_deregister_scsi_channel()
5943 	scrq->irq = 0;  in ibmvfc_deregister_scsi_channel()
5947 					scrq->cookie);  in ibmvfc_deregister_scsi_channel()
5954 	memset(scrq->msgs.crq, 0, PAGE_SIZE);  in ibmvfc_deregister_scsi_channel()
5955 	scrq->cur = 0;  in ibmvfc_deregister_scsi_channel()
5996 	struct ibmvfc_queue *scrq;  in ibmvfc_init_sub_crqs()  local
6012 		scrq = &vhost->scsi_scrqs.scrqs[i];  in ibmvfc_init_sub_crqs()
6013 		if (ibmvfc_alloc_queue(vhost, scrq, IBMVFC_SUB_CRQ_FMT)) {  in ibmvfc_init_sub_crqs()
6015 				scrq = &vhost->scsi_scrqs.scrqs[j - 1];  in ibmvfc_init_sub_crqs()
6016 				ibmvfc_free_queue(vhost, scrq);  in ibmvfc_init_sub_crqs()
6034 	struct ibmvfc_queue *scrq;  in ibmvfc_release_sub_crqs()  local
6044 		scrq = &vhost->scsi_scrqs.scrqs[i];  in ibmvfc_release_sub_crqs()
6045 		ibmvfc_free_queue(vhost, scrq);  in ibmvfc_release_sub_crqs()