175 	struct vhost_virtqueue vq;  member
231 	struct vhost_virtqueue *vq;  in vhost_scsi_init_inflight()  local
235 		vq = &vs->vqs[i].vq;  in vhost_scsi_init_inflight()
237 		mutex_lock(&vq->mutex);  in vhost_scsi_init_inflight()
250 		mutex_unlock(&vq->mutex);  in vhost_scsi_init_inflight()
255 vhost_scsi_get_inflight(struct vhost_virtqueue *vq)  in vhost_scsi_get_inflight()  argument
260 	svq = container_of(vq, struct vhost_scsi_virtqueue, vq);  in vhost_scsi_get_inflight()
418 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_allocate_evt()  local
428 		vq_err(vq, "Failed to allocate vhost_scsi_evt\n");  in vhost_scsi_allocate_evt()
433 	evt->event.event = cpu_to_vhost32(vq, event);  in vhost_scsi_allocate_evt()
434 	evt->event.reason = cpu_to_vhost32(vq, reason);  in vhost_scsi_allocate_evt()
457 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_do_evt_work()  local
463 	if (!vq->private_data) {  in vhost_scsi_do_evt_work()
469 	vhost_disable_notify(&vs->dev, vq);  in vhost_scsi_do_evt_work()
470 	head = vhost_get_vq_desc(vq, vq->iov,  in vhost_scsi_do_evt_work()
471 			ARRAY_SIZE(vq->iov), &out, &in,  in vhost_scsi_do_evt_work()
477 	if (head == vq->num) {  in vhost_scsi_do_evt_work()
478 		if (vhost_enable_notify(&vs->dev, vq))  in vhost_scsi_do_evt_work()
484 	if ((vq->iov[out].iov_len != sizeof(struct virtio_scsi_event))) {  in vhost_scsi_do_evt_work()
485 		vq_err(vq, "Expecting virtio_scsi_event, got %zu bytes\n",  in vhost_scsi_do_evt_work()
486 				vq->iov[out].iov_len);  in vhost_scsi_do_evt_work()
492 		event->event |= cpu_to_vhost32(vq, VIRTIO_SCSI_T_EVENTS_MISSED);  in vhost_scsi_do_evt_work()
496 	eventp = vq->iov[out].iov_base;  in vhost_scsi_do_evt_work()
499 		vhost_add_used_and_signal(&vs->dev, vq, head, 0);  in vhost_scsi_do_evt_work()
501 		vq_err(vq, "Faulted on vhost_scsi_send_event\n");  in vhost_scsi_do_evt_work()
508 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_evt_work()  local
512 	mutex_lock(&vq->mutex);  in vhost_scsi_evt_work()
520 	mutex_unlock(&vq->mutex);  in vhost_scsi_evt_work()
538 	int ret, vq;  in vhost_scsi_complete_cmd_work()  local
566 			q = container_of(cmd->tvc_vq, struct vhost_scsi_virtqueue, vq);  in vhost_scsi_complete_cmd_work()
567 			vq = q - vs->vqs;  in vhost_scsi_complete_cmd_work()
568 			__set_bit(vq, signal);  in vhost_scsi_complete_cmd_work()
575 	vq = -1;  in vhost_scsi_complete_cmd_work()
576 	while ((vq = find_next_bit(signal, VHOST_SCSI_MAX_VQ, vq + 1))  in vhost_scsi_complete_cmd_work()
578 		vhost_signal(&vs->dev, &vs->vqs[vq].vq);  in vhost_scsi_complete_cmd_work()
582 vhost_scsi_get_tag(struct vhost_virtqueue *vq, struct vhost_scsi_tpg *tpg,  in vhost_scsi_get_tag()  argument
622 	cmd->inflight = vhost_scsi_get_inflight(vq);  in vhost_scsi_get_tag()
829 			   struct vhost_virtqueue *vq,  in vhost_scsi_send_bad_target()  argument
838 	resp = vq->iov[out].iov_base;  in vhost_scsi_send_bad_target()
841 		vhost_add_used_and_signal(&vs->dev, vq, head, 0);  in vhost_scsi_send_bad_target()
847 vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)  in vhost_scsi_handle_vq()  argument
862 	bool t10_pi = vhost_has_feature(vq, VIRTIO_SCSI_F_T10_PI);  in vhost_scsi_handle_vq()
865 	mutex_lock(&vq->mutex);  in vhost_scsi_handle_vq()
870 	vs_tpg = vq->private_data;  in vhost_scsi_handle_vq()
874 	vhost_disable_notify(&vs->dev, vq);  in vhost_scsi_handle_vq()
877 		head = vhost_get_vq_desc(vq, vq->iov,  in vhost_scsi_handle_vq()
878 					 ARRAY_SIZE(vq->iov), &out, &in,  in vhost_scsi_handle_vq()
886 		if (head == vq->num) {  in vhost_scsi_handle_vq()
887 			if (unlikely(vhost_enable_notify(&vs->dev, vq))) {  in vhost_scsi_handle_vq()
888 				vhost_disable_notify(&vs->dev, vq);  in vhost_scsi_handle_vq()
897 		if (unlikely(vq->iov[out].iov_len < rsp_size)) {  in vhost_scsi_handle_vq()
898 			vq_err(vq, "Expecting at least virtio_scsi_cmd_resp"  in vhost_scsi_handle_vq()
899 				" size, got %zu bytes\n", vq->iov[out].iov_len);  in vhost_scsi_handle_vq()
920 		out_size = iov_length(vq->iov, out);  in vhost_scsi_handle_vq()
921 		in_size = iov_length(&vq->iov[out], in);  in vhost_scsi_handle_vq()
933 		iov_iter_init(&out_iter, WRITE, vq->iov, out, out_size);  in vhost_scsi_handle_vq()
937 			vq_err(vq, "Faulted on copy_from_iter\n");  in vhost_scsi_handle_vq()
938 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
943 			vq_err(vq, "Illegal virtio-scsi lun: %u\n", *lunp);  in vhost_scsi_handle_vq()
944 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
951 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
979 			iov_iter_init(&in_iter, READ, &vq->iov[out], in,  in vhost_scsi_handle_vq()
995 					vq_err(vq, "Received non zero pi_bytesout,"  in vhost_scsi_handle_vq()
997 					vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1000 				prot_bytes = vhost32_to_cpu(vq, v_req_pi.pi_bytesout);  in vhost_scsi_handle_vq()
1003 					vq_err(vq, "Received non zero pi_bytesin,"  in vhost_scsi_handle_vq()
1005 					vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1008 				prot_bytes = vhost32_to_cpu(vq, v_req_pi.pi_bytesin);  in vhost_scsi_handle_vq()
1022 			tag = vhost64_to_cpu(vq, v_req_pi.tag);  in vhost_scsi_handle_vq()
1027 			tag = vhost64_to_cpu(vq, v_req.tag);  in vhost_scsi_handle_vq()
1040 			vq_err(vq, "Received SCSI CDB with command_size: %d that"  in vhost_scsi_handle_vq()
1043 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1046 		cmd = vhost_scsi_get_tag(vq, tpg, cdb, tag, lun, task_attr,  in vhost_scsi_handle_vq()
1050 			vq_err(vq, "vhost_scsi_get_tag failed %ld\n",  in vhost_scsi_handle_vq()
1052 			vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1056 		cmd->tvc_vq = vq;  in vhost_scsi_handle_vq()
1057 		cmd->tvc_resp_iov = &vq->iov[out];  in vhost_scsi_handle_vq()
1070 				vq_err(vq, "Failed to map iov to sgl\n");  in vhost_scsi_handle_vq()
1072 				vhost_scsi_send_bad_target(vs, vq, head, out);  in vhost_scsi_handle_vq()
1092 	mutex_unlock(&vq->mutex);  in vhost_scsi_handle_vq()
1132 	struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue,  in vhost_scsi_evt_handle_kick()  local
1134 	struct vhost_scsi *vs = container_of(vq->dev, struct vhost_scsi, dev);  in vhost_scsi_evt_handle_kick()
1136 	mutex_lock(&vq->mutex);  in vhost_scsi_evt_handle_kick()
1137 	if (!vq->private_data)  in vhost_scsi_evt_handle_kick()
1143 	mutex_unlock(&vq->mutex);  in vhost_scsi_evt_handle_kick()
1148 	struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue,  in vhost_scsi_handle_kick()  local
1150 	struct vhost_scsi *vs = container_of(vq->dev, struct vhost_scsi, dev);  in vhost_scsi_handle_kick()
1152 	vhost_scsi_handle_vq(vs, vq);  in vhost_scsi_handle_kick()
1157 	vhost_poll_flush(&vs->vqs[index].vq.poll);  in vhost_scsi_flush_vq()
1203 	struct vhost_virtqueue *vq;  in vhost_scsi_set_endpoint()  local
1213 		if (!vhost_vq_access_ok(&vs->vqs[index].vq)) {  in vhost_scsi_set_endpoint()
1274 			vq = &vs->vqs[i].vq;  in vhost_scsi_set_endpoint()
1275 			mutex_lock(&vq->mutex);  in vhost_scsi_set_endpoint()
1276 			vq->private_data = vs_tpg;  in vhost_scsi_set_endpoint()
1277 			vhost_init_used(vq);  in vhost_scsi_set_endpoint()
1278 			mutex_unlock(&vq->mutex);  in vhost_scsi_set_endpoint()
1306 	struct vhost_virtqueue *vq;  in vhost_scsi_clear_endpoint()  local
1315 		if (!vhost_vq_access_ok(&vs->vqs[index].vq)) {  in vhost_scsi_clear_endpoint()
1361 			vq = &vs->vqs[i].vq;  in vhost_scsi_clear_endpoint()
1362 			mutex_lock(&vq->mutex);  in vhost_scsi_clear_endpoint()
1363 			vq->private_data = NULL;  in vhost_scsi_clear_endpoint()
1364 			mutex_unlock(&vq->mutex);  in vhost_scsi_clear_endpoint()
1389 	struct vhost_virtqueue *vq;  in vhost_scsi_set_features()  local
1403 		vq = &vs->vqs[i].vq;  in vhost_scsi_set_features()
1404 		mutex_lock(&vq->mutex);  in vhost_scsi_set_features()
1405 		vq->acked_features = features;  in vhost_scsi_set_features()
1406 		mutex_unlock(&vq->mutex);  in vhost_scsi_set_features()
1435 	vqs[VHOST_SCSI_VQ_CTL] = &vs->vqs[VHOST_SCSI_VQ_CTL].vq;  in vhost_scsi_open()
1436 	vqs[VHOST_SCSI_VQ_EVT] = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_open()
1437 	vs->vqs[VHOST_SCSI_VQ_CTL].vq.handle_kick = vhost_scsi_ctl_handle_kick;  in vhost_scsi_open()
1438 	vs->vqs[VHOST_SCSI_VQ_EVT].vq.handle_kick = vhost_scsi_evt_handle_kick;  in vhost_scsi_open()
1440 		vqs[i] = &vs->vqs[i].vq;  in vhost_scsi_open()
1441 		vs->vqs[i].vq.handle_kick = vhost_scsi_handle_kick;  in vhost_scsi_open()
1487 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_ioctl()  local
1511 		mutex_lock(&vq->mutex);  in vhost_scsi_ioctl()
1513 		mutex_unlock(&vq->mutex);  in vhost_scsi_ioctl()
1516 		mutex_lock(&vq->mutex);  in vhost_scsi_ioctl()
1518 		mutex_unlock(&vq->mutex);  in vhost_scsi_ioctl()
1599 	struct vhost_virtqueue *vq;  in vhost_scsi_do_plug()  local
1612 	vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;  in vhost_scsi_do_plug()
1613 	mutex_lock(&vq->mutex);  in vhost_scsi_do_plug()
1614 	if (vhost_has_feature(vq, VIRTIO_SCSI_F_HOTPLUG))  in vhost_scsi_do_plug()
1617 	mutex_unlock(&vq->mutex);  in vhost_scsi_do_plug()