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Message-ID: <cover.1307029008.git.mst@redhat.com>
Date: Thu, 2 Jun 2011 18:42:35 +0300
From: "Michael S. Tsirkin" <mst@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Rusty Russell <rusty@...tcorp.com.au>,
Carsten Otte <cotte@...ibm.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
linux390@...ibm.com, Martin Schwidefsky <schwidefsky@...ibm.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
Shirley Ma <xma@...ibm.com>, lguest@...ts.ozlabs.org,
linux-kernel@...r.kernel.org,
virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
linux-s390@...r.kernel.org, kvm@...r.kernel.org,
Krishna Kumar <krkumar2@...ibm.com>,
Tom Lendacky <tahm@...ux.vnet.ibm.com>, steved@...ibm.com,
habanero@...ux.vnet.ibm.com
Subject: [PATCHv2 RFC 0/4] virtio and vhost-net capacity handling
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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