[Lguest] [PATCHv2 RFC 0/4] virtio and vhost-net capacity handling
Michael S. Tsirkin
mst at redhat.com
Fri Jun 3 01:42:35 EST 2011
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
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