+ //\r
+ // In VirtIo 1.0, the NumBuffers field is mandatory. In 0.9.5, it depends on\r
+ // VIRTIO_NET_F_MRG_RXBUF, which we never negotiate.\r
+ //\r
+ TxSharedReqSize = (Dev->VirtIo->Revision < VIRTIO_SPEC_REVISION (1, 0, 0)) ?\r
+ sizeof Dev->TxSharedReq.V0_9_5 :\r
+ sizeof Dev->TxSharedReq;\r
+\r