diff options
Diffstat (limited to 'hw/scsi/virtio-scsi.c')
-rw-r--r-- | hw/scsi/virtio-scsi.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 57efe65659..6cf070f70e 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -449,10 +449,9 @@ static void virtio_scsi_fail_cmd_req(VirtIOSCSIReq *req) virtio_scsi_complete_cmd_req(req); } -void virtio_scsi_handle_cmd_req(VirtIOSCSI *s, VirtIOSCSIReq *req) +bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req) { VirtIOSCSICommon *vs = &s->parent_obj; - int n; SCSIDevice *d; int rc; @@ -464,14 +463,14 @@ void virtio_scsi_handle_cmd_req(VirtIOSCSI *s, VirtIOSCSIReq *req) } else { virtio_scsi_bad_req(); } - return; + return false; } d = virtio_scsi_device_find(s, req->req.cmd.lun); if (!d) { req->resp.cmd.response = VIRTIO_SCSI_S_BAD_TARGET; virtio_scsi_complete_cmd_req(req); - return; + return false; } if (s->dataplane_started && bdrv_get_aio_context(d->conf.bs) != s->ctx) { aio_context_acquire(s->ctx); @@ -487,11 +486,14 @@ void virtio_scsi_handle_cmd_req(VirtIOSCSI *s, VirtIOSCSIReq *req) req->sreq->cmd.xfer > req->qsgl.size)) { req->resp.cmd.response = VIRTIO_SCSI_S_OVERRUN; virtio_scsi_complete_cmd_req(req); - return; + return false; } + return true; +} - n = scsi_req_enqueue(req->sreq); - if (n) { +void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s, VirtIOSCSIReq *req) +{ + if (scsi_req_enqueue(req->sreq)) { scsi_req_continue(req->sreq); } } @@ -507,7 +509,9 @@ static void virtio_scsi_handle_cmd(VirtIODevice *vdev, VirtQueue *vq) return; } while ((req = virtio_scsi_pop_req(s, vq))) { - virtio_scsi_handle_cmd_req(s, req); + if (virtio_scsi_handle_cmd_req_prepare(s, req)) { + virtio_scsi_handle_cmd_req_submit(s, req); + } } } |