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Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael Dalton <mwdalton at google.com> Cc: Eric Dumazet

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael Dalton <mwdalton at google.com> Cc: Eric Dumazet

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael Dalton <mwdalton at google.com> Cc: Eric Dumazet

Sometimes we need to coalesce the rx frags to avoid frag list. One example is virtio-net driver which tries to use small frags for both MTU sized packet and GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Michael Dalton <mwdalton at google.com> Cc: Eric Dumazet

On Thu, Mar 09, 2023 at 07:20:20PM +0300, Arseniy Krasnov wrote: > > >On 09.03.2023 19:21, Stefano Garzarella wrote: >> On Thu, Mar 09, 2023 at 01:10:36PM +0300, Arseniy Krasnov wrote: >>> Hello, >>> >>> this patchset evolved from previous v2 version (see link below). It does >>> several updates to virtio/vsock: >>> 1) Changes

On 10/31/2013 07:05 PM, Kmindg G wrote: > On Thu, Oct 31, 2013 at 6:28 PM, Jason Wang <jasowang at redhat.com> wrote: >> > Sometimes we need to coalesce the rx frags to avoid frag list. One example is >> > virtio-net driver which tries to use small frags for both MTU sized packet and >> > GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this.

On Thu, Oct 31, 2013 at 6:28 PM, Jason Wang <jasowang at redhat.com> wrote: > Sometimes we need to coalesce the rx frags to avoid frag list. One example is > virtio-net driver which tries to use small frags for both MTU sized packet and > GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. > > Cc: Rusty Russell <rusty at rustcorp.com.au> > Cc:

On Thu, Oct 31, 2013 at 6:28 PM, Jason Wang <jasowang at redhat.com> wrote: > Sometimes we need to coalesce the rx frags to avoid frag list. One example is > virtio-net driver which tries to use small frags for both MTU sized packet and > GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. > > Cc: Rusty Russell <rusty at rustcorp.com.au> > Cc:

On Thu, 2013-10-31 at 19:47 +0800, Jason Wang wrote: > Sometimes we need to coalesce the rx frags to avoid frag list. One example is > virtio-net driver which tries to use small frags for both MTU sized packet and > GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this. > > Cc: Rusty Russell <rusty at rustcorp.com.au> > Cc: Michael S. Tsirkin <mst at

On Mon, 2015-01-26 at 09:37 -0500, Vladislav Yasevich wrote: > If the IPv6 fragment id has not been set and we perform > fragmentation due to UFO, select a new fragment id. > When we store the fragment id into skb_shinfo, set the bit > in the skb so we can re-use the selected id. > This preserves the behavior of UFO packets generated on the > host and solves the issue of id

On Mon, 2015-01-26 at 09:37 -0500, Vladislav Yasevich wrote: > If the IPv6 fragment id has not been set and we perform > fragmentation due to UFO, select a new fragment id. > When we store the fragment id into skb_shinfo, set the bit > in the skb so we can re-use the selected id. > This preserves the behavior of UFO packets generated on the > host and solves the issue of id

On Sun, Mar 19, 2023 at 09:53:54PM +0300, Arseniy Krasnov wrote: >This adds test which checks case when data of newly received skbuff is >appended to the last skbuff in the socket's queue. > >This test is actual only for virtio transport. > >Signed-off-by: Arseniy Krasnov <AVKrasnov at sberdevices.ru> >--- > tools/testing/vsock/vsock_test.c | 81

On Di, 2015-01-27 at 10:42 +0200, Michael S. Tsirkin wrote: > On Tue, Jan 27, 2015 at 02:47:54AM +0000, Ben Hutchings wrote: > > On Mon, 2015-01-26 at 09:37 -0500, Vladislav Yasevich wrote: > > > If the IPv6 fragment id has not been set and we perform > > > fragmentation due to UFO, select a new fragment id. > > > When we store the fragment id into skb_shinfo,

On Di, 2015-01-27 at 10:42 +0200, Michael S. Tsirkin wrote: > On Tue, Jan 27, 2015 at 02:47:54AM +0000, Ben Hutchings wrote: > > On Mon, 2015-01-26 at 09:37 -0500, Vladislav Yasevich wrote: > > > If the IPv6 fragment id has not been set and we perform > > > fragmentation due to UFO, select a new fragment id. > > > When we store the fragment id into skb_shinfo,

On Di, 2015-01-27 at 09:26 -0500, Vlad Yasevich wrote: > On 01/27/2015 08:47 AM, Hannes Frederic Sowa wrote: > > On Di, 2015-01-27 at 10:42 +0200, Michael S. Tsirkin wrote: > >> On Tue, Jan 27, 2015 at 02:47:54AM +0000, Ben Hutchings wrote: > >>> On Mon, 2015-01-26 at 09:37 -0500, Vladislav Yasevich wrote: > >>>> If the IPv6 fragment id has not been set

On Di, 2015-01-27 at 09:26 -0500, Vlad Yasevich wrote: > On 01/27/2015 08:47 AM, Hannes Frederic Sowa wrote: > > On Di, 2015-01-27 at 10:42 +0200, Michael S. Tsirkin wrote: > >> On Tue, Jan 27, 2015 at 02:47:54AM +0000, Ben Hutchings wrote: > >>> On Mon, 2015-01-26 at 09:37 -0500, Vladislav Yasevich wrote: > >>>> If the IPv6 fragment id has not been set

On Wed, 2014-12-17 at 13:20 -0500, Vladislav Yasevich wrote: > Split IPv6 support for UFO into its own feature similiar to TSO. > This will later allow us to re-enable UFO support for virtio-net > devices. [...] > diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h > index 6c8b6f6..8538b67 100644 > --- a/include/linux/skbuff.h > +++ b/include/linux/skbuff.h > @@

On Wed, 2014-12-17 at 13:20 -0500, Vladislav Yasevich wrote: > Split IPv6 support for UFO into its own feature similiar to TSO. > This will later allow us to re-enable UFO support for virtio-net > devices. [...] > diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h > index 6c8b6f6..8538b67 100644 > --- a/include/linux/skbuff.h > +++ b/include/linux/skbuff.h > @@

On Tue, Mar 21, 2023 at 12:31:48AM +0300, Arseniy Krasnov wrote: >This adds small optimization for tx path: instead of allocating single >skbuff on every call to transport, allocate multiple skbuff's until >credit space allows, thus trying to send as much as possible data without >return to af_vsock.c. > >Signed-off-by: Arseniy Krasnov <AVKrasnov at sberdevices.ru>

tun supports zero copy transmit since 0690899b4d4501b3505be069b9a687e68ccbe15b, however you can only enable this mode if you know your workload does not trigger heavy guest to host/host to guest traffic - otherwise you get a (minor) performance regression. This patchset addresses this problem by notifying the owner device when callback is invoked because of a data copy. This makes it possible to