174 	struct vhost_virtqueue vq;  member
224 	struct vhost_virtqueue *vq;  in vhost_scsi_init_inflight()  local
228 		vq = &vs->vqs[i].vq;  in vhost_scsi_init_inflight()
230 		mutex_lock(&vq->mutex);  in vhost_scsi_init_inflight()
243 		mutex_unlock(&vq->mutex);  in vhost_scsi_init_inflight()
248 vhost_scsi_get_inflight(struct vhost_virtqueue *vq)  in vhost_scsi_get_inflight()  argument
253 	svq = container_of(vq, struct vhost_scsi_virtqueue, vq);  in vhost_scsi_get_inflight()
401 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_allocate_evt()  local
411 		vq_err(vq, "Failed to allocate vhost_scsi_evt\n");  in vhost_scsi_allocate_evt()
416 	evt->event.event = cpu_to_vhost32(vq, event);  in vhost_scsi_allocate_evt()
417 	evt->event.reason = cpu_to_vhost32(vq, reason);  in vhost_scsi_allocate_evt()
440 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_do_evt_work()  local
446 	if (!vq->private_data) {  in vhost_scsi_do_evt_work()
452 	vhost_disable_notify(&vs->dev, vq);  in vhost_scsi_do_evt_work()
453 	head = vhost_get_vq_desc(vq, vq->iov,  in vhost_scsi_do_evt_work()
454 			ARRAY_SIZE(vq->iov), &out, &in,  in vhost_scsi_do_evt_work()
460 	if (head == vq->num) {  in vhost_scsi_do_evt_work()
461 		if (vhost_enable_notify(&vs->dev, vq))  in vhost_scsi_do_evt_work()
467 	if ((vq->iov[out].iov_len != sizeof(struct virtio_scsi_event))) {  in vhost_scsi_do_evt_work()
468 		vq_err(vq, "Expecting virtio_scsi_event, got %zu bytes\n",  in vhost_scsi_do_evt_work()
469 				vq->iov[out].iov_len);  in vhost_scsi_do_evt_work()
475 		event->event |= cpu_to_vhost32(vq, VIRTIO_SCSI_T_EVENTS_MISSED);  in vhost_scsi_do_evt_work()
479 	eventp = vq->iov[out].iov_base;  in vhost_scsi_do_evt_work()
482 		vhost_add_used_and_signal(&vs->dev, vq, head, 0);  in vhost_scsi_do_evt_work()
484 		vq_err(vq, "Faulted on vhost_scsi_send_event\n");  in vhost_scsi_do_evt_work()
491 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_evt_work()  local
495 	mutex_lock(&vq->mutex);  in vhost_scsi_evt_work()
501 	mutex_unlock(&vq->mutex);  in vhost_scsi_evt_work()
519 	int ret, vq;  in vhost_scsi_complete_cmd_work()  local
544 			q = container_of(cmd->tvc_vq, struct vhost_scsi_virtqueue, vq);  in vhost_scsi_complete_cmd_work()
545 			vq = q - vs->vqs;  in vhost_scsi_complete_cmd_work()
546 			__set_bit(vq, signal);  in vhost_scsi_complete_cmd_work()
553 	vq = -1;  in vhost_scsi_complete_cmd_work()
554 	while ((vq = find_next_bit(signal, VHOST_SCSI_MAX_VQ, vq + 1))  in vhost_scsi_complete_cmd_work()
556 		vhost_signal(&vs->dev, &vs->vqs[vq].vq);  in vhost_scsi_complete_cmd_work()
560 vhost_scsi_get_tag(struct vhost_virtqueue *vq, struct vhost_scsi_tpg *tpg,  in vhost_scsi_get_tag()  argument
600 	cmd->inflight = vhost_scsi_get_inflight(vq);  in vhost_scsi_get_tag()
786 			   struct vhost_virtqueue *vq,  in vhost_scsi_send_bad_target()  argument
795 	resp = vq->iov[out].iov_base;  in vhost_scsi_send_bad_target()
798 		vhost_add_used_and_signal(&vs->dev, vq, head, 0);  in vhost_scsi_send_bad_target()
804 vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)  in vhost_scsi_handle_vq()  argument
819 	bool t10_pi = vhost_has_feature(vq, VIRTIO_SCSI_F_T10_PI);  in vhost_scsi_handle_vq()
822 	mutex_lock(&vq->mutex);  in vhost_scsi_handle_vq()
827 	vs_tpg = vq->private_data;  in vhost_scsi_handle_vq()
831 	vhost_disable_notify(&vs->dev, vq);  in vhost_scsi_handle_vq()
834 		head = vhost_get_vq_desc(vq, vq->iov,  in vhost_scsi_handle_vq()
835 					 ARRAY_SIZE(vq->iov), &out, &in,  in vhost_scsi_handle_vq()
843 		if (head == vq->num) {  in vhost_scsi_handle_vq()
844 			if (unlikely(vhost_enable_notify(&vs->dev, vq))) {  in vhost_scsi_handle_vq()
845 				vhost_disable_notify(&vs->dev, vq);  in vhost_scsi_handle_vq()
854 		if (unlikely(vq->iov[out].iov_len < rsp_size)) {  in vhost_scsi_handle_vq()
855 			vq_err(vq, "Expecting at least virtio_scsi_cmd_resp"  in vhost_scsi_handle_vq()
856 				" size, got %zu bytes\n", vq->iov[out].iov_len);  in vhost_scsi_handle_vq()
877 		out_size = iov_length(vq->iov, out);  in vhost_scsi_handle_vq()
878 		in_size = iov_length(&vq->iov[out], in);  in vhost_scsi_handle_vq()
890 		iov_iter_init(&out_iter, WRITE, vq->iov, out, out_size);  in vhost_scsi_handle_vq()
893 			vq_err(vq, "Faulted on copy_from_iter\n");  in vhost_scsi_handle_vq()
894 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
899 			vq_err(vq, "Illegal virtio-scsi lun: %u\n", *lunp);  in vhost_scsi_handle_vq()
900 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
907 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
935 			iov_iter_init(&in_iter, READ, &vq->iov[out], in,  in vhost_scsi_handle_vq()
951 					vq_err(vq, "Received non zero pi_bytesout,"  in vhost_scsi_handle_vq()
953 					vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
956 				prot_bytes = vhost32_to_cpu(vq, v_req_pi.pi_bytesout);  in vhost_scsi_handle_vq()
959 					vq_err(vq, "Received non zero pi_bytesin,"  in vhost_scsi_handle_vq()
961 					vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
964 				prot_bytes = vhost32_to_cpu(vq, v_req_pi.pi_bytesin);  in vhost_scsi_handle_vq()
978 			tag = vhost64_to_cpu(vq, v_req_pi.tag);  in vhost_scsi_handle_vq()
983 			tag = vhost64_to_cpu(vq, v_req.tag);  in vhost_scsi_handle_vq()
996 			vq_err(vq, "Received SCSI CDB with command_size: %d that"  in vhost_scsi_handle_vq()
999 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1002 		cmd = vhost_scsi_get_tag(vq, tpg, cdb, tag, lun, task_attr,  in vhost_scsi_handle_vq()
1006 			vq_err(vq, "vhost_scsi_get_tag failed %ld\n",  in vhost_scsi_handle_vq()
1008 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1012 		cmd->tvc_vq = vq;  in vhost_scsi_handle_vq()
1013 		cmd->tvc_resp_iov = vq->iov[out];  in vhost_scsi_handle_vq()
1026 				vq_err(vq, "Failed to map iov to sgl\n");  in vhost_scsi_handle_vq()
1028 				vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1048 	mutex_unlock(&vq->mutex);  in vhost_scsi_handle_vq()
1088 	struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue,  in vhost_scsi_evt_handle_kick()  local
1090 	struct vhost_scsi *vs = container_of(vq->dev, struct vhost_scsi, dev);  in vhost_scsi_evt_handle_kick()
1092 	mutex_lock(&vq->mutex);  in vhost_scsi_evt_handle_kick()
1093 	if (!vq->private_data)  in vhost_scsi_evt_handle_kick()
1099 	mutex_unlock(&vq->mutex);  in vhost_scsi_evt_handle_kick()
1104 	struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue,  in vhost_scsi_handle_kick()  local
1106 	struct vhost_scsi *vs = container_of(vq->dev, struct vhost_scsi, dev);  in vhost_scsi_handle_kick()
1108 	vhost_scsi_handle_vq(vs, vq);  in vhost_scsi_handle_kick()
1113 	vhost_poll_flush(&vs->vqs[index].vq.poll);  in vhost_scsi_flush_vq()
1159 	struct vhost_virtqueue *vq;  in vhost_scsi_set_endpoint()  local
1169 		if (!vhost_vq_access_ok(&vs->vqs[index].vq)) {  in vhost_scsi_set_endpoint()
1230 			vq = &vs->vqs[i].vq;  in vhost_scsi_set_endpoint()
1231 			mutex_lock(&vq->mutex);  in vhost_scsi_set_endpoint()
1232 			vq->private_data = vs_tpg;  in vhost_scsi_set_endpoint()
1233 			vhost_vq_init_access(vq);  in vhost_scsi_set_endpoint()
1234 			mutex_unlock(&vq->mutex);  in vhost_scsi_set_endpoint()
1262 	struct vhost_virtqueue *vq;  in vhost_scsi_clear_endpoint()  local
1271 		if (!vhost_vq_access_ok(&vs->vqs[index].vq)) {  in vhost_scsi_clear_endpoint()
1317 			vq = &vs->vqs[i].vq;  in vhost_scsi_clear_endpoint()
1318 			mutex_lock(&vq->mutex);  in vhost_scsi_clear_endpoint()
1319 			vq->private_data = NULL;  in vhost_scsi_clear_endpoint()
1320 			mutex_unlock(&vq->mutex);  in vhost_scsi_clear_endpoint()
1345 	struct vhost_virtqueue *vq;  in vhost_scsi_set_features()  local
1359 		vq = &vs->vqs[i].vq;  in vhost_scsi_set_features()
1360 		mutex_lock(&vq->mutex);  in vhost_scsi_set_features()
1361 		vq->acked_features = features;  in vhost_scsi_set_features()
1362 		mutex_unlock(&vq->mutex);  in vhost_scsi_set_features()
1391 	vqs[VHOST_SCSI_VQ_CTL] = &vs->vqs[VHOST_SCSI_VQ_CTL].vq;  in vhost_scsi_open()
1392 	vqs[VHOST_SCSI_VQ_EVT] = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_open()
1393 	vs->vqs[VHOST_SCSI_VQ_CTL].vq.handle_kick = vhost_scsi_ctl_handle_kick;  in vhost_scsi_open()
1394 	vs->vqs[VHOST_SCSI_VQ_EVT].vq.handle_kick = vhost_scsi_evt_handle_kick;  in vhost_scsi_open()
1396 		vqs[i] = &vs->vqs[i].vq;  in vhost_scsi_open()
1397 		vs->vqs[i].vq.handle_kick = vhost_scsi_handle_kick;  in vhost_scsi_open()
1443 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_ioctl()  local
1467 		mutex_lock(&vq->mutex);  in vhost_scsi_ioctl()
1469 		mutex_unlock(&vq->mutex);  in vhost_scsi_ioctl()
1472 		mutex_lock(&vq->mutex);  in vhost_scsi_ioctl()
1474 		mutex_unlock(&vq->mutex);  in vhost_scsi_ioctl()
1555 	struct vhost_virtqueue *vq;  in vhost_scsi_do_plug()  local
1568 	vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_do_plug()
1569 	mutex_lock(&vq->mutex);  in vhost_scsi_do_plug()
1570 	if (vhost_has_feature(vq, VIRTIO_SCSI_F_HOTPLUG))  in vhost_scsi_do_plug()
1573 	mutex_unlock(&vq->mutex);  in vhost_scsi_do_plug()