From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: Michael Dalton <mwdalton@google.com>,
netdev@vger.kernel.org,
virtualization@lists.linux-foundation.org,
Eric Dumazet <edumazet@google.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH net-next v2 4/4] virtio-net: initial debugfs support, export mergeable rx buffer size
Date: Wed, 8 Jan 2014 21:21:09 +0200 [thread overview]
Message-ID: <20140108192109.GC18312@redhat.com> (raw)
In-Reply-To: <52CCF177.7020500@redhat.com>
On Wed, Jan 08, 2014 at 02:34:31PM +0800, Jason Wang wrote:
> On 01/07/2014 01:25 PM, Michael Dalton wrote:
> > Add initial support for debugfs to virtio-net. Each virtio-net network
> > device will have a directory under /virtio-net in debugfs. The
> > per-network device directory will contain one sub-directory per active,
> > enabled receive queue. If mergeable receive buffers are enabled, each
> > receive queue directory will contain a read-only file that returns the
> > current packet buffer size for the receive queue.
> >
> > Signed-off-by: Michael Dalton <mwdalton@google.com>
>
> This looks more complicated than expected. How about just adding an
> entry in sysfs onto the existed network class device which looks more
> simpler?
sysfs is part of userspace ABI, I think that's the main issue: can we
commit to this attribute being there in the future?
If yes we can use sysfs but maybe it seems reasonable to use debugfs for
a while until we are more sure of this.
I don't mind either way.
next prev parent reply other threads:[~2014-01-08 19:21 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-07 5:25 [PATCH net-next v2 1/4] net: allow > 0 order atomic page alloc in skb_page_frag_refill Michael Dalton
2014-01-07 5:25 ` [PATCH net-next v2 2/4] virtio-net: use per-receive queue page frag alloc for mergeable bufs Michael Dalton
2014-01-07 5:25 ` [PATCH net-next v2 3/4] virtio-net: auto-tune mergeable rx buffer size for improved performance Michael Dalton
2014-01-08 6:23 ` Jason Wang
2014-01-08 18:28 ` Michael Dalton
2014-01-08 18:44 ` Eric Dumazet
2014-01-08 19:16 ` Michael S. Tsirkin
2014-01-08 19:56 ` Michael Dalton
2014-01-08 20:30 ` Michael S. Tsirkin
2014-01-09 1:42 ` Michael S. Tsirkin
2014-01-09 3:16 ` Michael Dalton
2014-01-09 3:41 ` Michael Dalton
2014-01-09 6:48 ` Michael S. Tsirkin
2014-01-09 8:28 ` Michael Dalton
2014-01-09 9:02 ` Michael Dalton
2014-01-09 13:25 ` Michael S. Tsirkin
2014-01-09 19:33 ` Michael Dalton
2014-01-09 6:42 ` Michael S. Tsirkin
2014-01-07 5:25 ` [PATCH net-next v2 4/4] virtio-net: initial debugfs support, export mergeable rx buffer size Michael Dalton
2014-01-08 6:34 ` Jason Wang
2014-01-08 19:21 ` Michael S. Tsirkin [this message]
2014-01-11 5:19 ` Michael Dalton
2014-01-11 5:36 ` Michael Dalton
2014-01-12 17:09 ` Michael S. Tsirkin
2014-01-12 23:32 ` Michael Dalton
2014-01-13 7:36 ` Jason Wang
2014-01-13 9:40 ` Michael S. Tsirkin
2014-01-13 15:38 ` Ben Hutchings
2014-01-13 19:07 ` Michael Dalton
2014-01-13 19:19 ` Michael Dalton
2014-01-14 21:45 ` Michael Dalton
2014-01-14 21:53 ` Michael S. Tsirkin
2014-01-08 18:24 ` Michael S. Tsirkin
2014-01-08 18:08 ` [PATCH net-next v2 1/4] net: allow > 0 order atomic page alloc in skb_page_frag_refill Michael S. Tsirkin
2014-01-08 18:26 ` Eric Dumazet
2014-01-08 19:18 ` Michael S. Tsirkin
2014-01-08 19:46 ` Eric Dumazet
2014-01-08 21:54 ` Debabrata Banerjee
2014-01-08 22:01 ` Eric Dumazet
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