OK, here's a new attempt to use the new capacity api. I also added more comments to clarify the logic. Hope this is more readable. Let me know pls. This is on top of the patches applied by Rusty. Warning: untested. Posting now to give people chance to comment on the API. Changes from v1: - fix comment in patch 2 to correct confusion noted by Rusty - rewrite patch 3 along the lines suggested by Rusty note: it's not exactly the same but I hope it's close enough, the main difference is that mine does limited polling even in the unlikely xmit failure case. - added a patch to not return capacity from add_buf it always looked like a weird hack Michael S. Tsirkin (4): virtio_ring: add capacity check API virtio_net: fix tx capacity checks using new API virtio_net: limit xmit polling Revert "virtio: make add_buf return capacity remaining: drivers/net/virtio_net.c | 111 ++++++++++++++++++++++++++---------------- drivers/virtio/virtio_ring.c | 10 +++- include/linux/virtio.h | 7 ++- 3 files changed, 84 insertions(+), 44 deletions(-) -- 1.7.5.53.gc233e _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
