From: Wei Xu <w...@redhat.com> This is a prototype for virtio-net 1.1 support in userspace backend, only minimum part are included in this RFC(roughly synced to v8 as Jason and Tiwei's RFC).
Test has been done together with Tiwei's RFC guest virtio-net driver patch, ping and a quick iperf test successfully. Issues: 1. Rx performance of Iperf is much slower than TX. TX: 13-15Gb RX: 100-300Mb Missing: - device and driver - indirect descriptor - migration - vIOMMU support - other revisions since v8 - see FIXME Wei Xu (8): virtio: feature bit, data structure for packed ring virtio: memory cache for packed ring virtio: add empty check for packed ring virtio: add detach element for packed ring(1.1) virtio: notification tweak for packed ring virtio: flush/push support for packed ring virtio: get avail bytes check for packed ring virtio: queue pop support for packed ring hw/virtio/virtio.c | 618 +++++++++++++++++++++++-- include/hw/virtio/virtio.h | 12 +- include/standard-headers/linux/virtio_config.h | 2 + 3 files changed, 601 insertions(+), 31 deletions(-) -- 2.7.4