l.org;
> > virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
> >
> > Subject: Re: [PATCH net-next v2 3/3] tun: AF_XDP Tx zero-copy support
> >
> > On Mon, Mar 4, 2024 at 9:45 PM wangyunjian
> > wrote:
> > >
> > >
> > >
> >
.com; maciej.fijalkow...@intel.com;
> jonathan.le...@gmail.com; da...@davemloft.net; b...@vger.kernel.org;
> net...@vger.kernel.org; linux-kernel@vger.kernel.org; k...@vger.kernel.org;
> virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
>
> Subject: Re: [PATCH net-next v2 3
l.org;
> > virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
> >
> > Subject: Re: [PATCH net-next v2 3/3] tun: AF_XDP Tx zero-copy support
> >
> > On Fri, Mar 01, 2024 at 11:45:52AM +, wangyunjian wrote:
> > > > -Original Message---
On Sat, Mar 2, 2024 at 2:40 AM Willem de Bruijn
wrote:
>
> Maciej Fijalkowski wrote:
> > On Wed, Feb 28, 2024 at 07:05:56PM +0800, Yunjian Wang wrote:
> > > This patch set allows TUN to support the AF_XDP Tx zero-copy feature,
> > > which can significantly reduce CPU utilization for XDP programs.
nux.dev; xudingke ; liwei (DT)
> >
> > Subject: Re: [PATCH net-next v2 3/3] tun: AF_XDP Tx zero-copy support
> >
> > On Wed, Feb 28, 2024 at 7:06 PM Yunjian Wang
> > wrote:
> > >
> > > This patch set allows TUN to support the AF_XDP Tx zero-copy featur
.com; maciej.fijalkow...@intel.com;
> jonathan.le...@gmail.com; da...@davemloft.net; b...@vger.kernel.org;
> net...@vger.kernel.org; linux-kernel@vger.kernel.org; k...@vger.kernel.org;
> virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
>
> Subject: Re: [PATCH net-next v2 3
alkow...@intel.com;
> jonathan.le...@gmail.com; da...@davemloft.net; b...@vger.kernel.org;
> net...@vger.kernel.org; linux-kernel@vger.kernel.org; k...@vger.kernel.org;
> virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
>
> Subject: Re: [PATCH net-next v2 3/3] tun: AF_XDP Tx zero-copy suppo
On Wed, Feb 28, 2024 at 7:06 PM Yunjian Wang wrote:
>
> This patch set allows TUN to support the AF_XDP Tx zero-copy feature,
> which can significantly reduce CPU utilization for XDP programs.
>
> Since commit fc72d1d54dd9 ("tuntap: XDP transmission"), the pointer
> ring has been utilized to
Maciej Fijalkowski wrote:
> On Wed, Feb 28, 2024 at 07:05:56PM +0800, Yunjian Wang wrote:
> > This patch set allows TUN to support the AF_XDP Tx zero-copy feature,
> > which can significantly reduce CPU utilization for XDP programs.
>
> Why no Rx ZC support though? What will happen if I try
On Wed, Feb 28, 2024 at 07:05:56PM +0800, Yunjian Wang wrote:
> This patch set allows TUN to support the AF_XDP Tx zero-copy feature,
> which can significantly reduce CPU utilization for XDP programs.
Why no Rx ZC support though? What will happen if I try rxdrop xdpsock
against tun with this
t; > virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
> >
> > Subject: Re: [PATCH net-next v2 3/3] tun: AF_XDP Tx zero-copy support
> >
> > On Wed, 2024-02-28 at 19:05 +0800, Yunjian Wang wrote:
> > > @@ -2661,6 +2776,54 @@ static int tun_ptr_peek_l
m; maciej.fijalkow...@intel.com;
> jonathan.le...@gmail.com; da...@davemloft.net
> Cc: b...@vger.kernel.org; net...@vger.kernel.org;
> linux-kernel@vger.kernel.org; k...@vger.kernel.org;
> virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
>
> Subject: Re: [PATCH net-next v2 3
://lore.kernel.org/r/1709118356-133960-1-git-send-email-wangyunjian%40huawei.com
patch subject: [PATCH net-next v2 3/3] tun: AF_XDP Tx zero-copy support
config: microblaze-randconfig-r131-20240229
(https://download.01.org/0day-ci/archive/20240229/202402292345.a49gfjlj-...@intel.com/config)
compiler
m; maciej.fijalkow...@intel.com;
> jonathan.le...@gmail.com; da...@davemloft.net
> Cc: b...@vger.kernel.org; net...@vger.kernel.org;
> linux-kernel@vger.kernel.org; k...@vger.kernel.org;
> virtualizat...@lists.linux.dev; xudingke ; liwei (DT)
>
> Subject: Re: [PATCH net-next v2 3
On Wed, 2024-02-28 at 19:05 +0800, Yunjian Wang wrote:
> @@ -2661,6 +2776,54 @@ static int tun_ptr_peek_len(void *ptr)
> }
> }
>
> +static void tun_peek_xsk(struct tun_file *tfile)
> +{
> + struct xsk_buff_pool *pool;
> + u32 i, batch, budget;
> + void *frame;
> +
> + if
://lore.kernel.org/r/1709118356-133960-1-git-send-email-wangyunjian%40huawei.com
patch subject: [PATCH net-next v2 3/3] tun: AF_XDP Tx zero-copy support
config: i386-randconfig-012-20240229
(https://download.01.org/0day-ci/archive/20240229/202402291828.g9c5tw50-...@intel.com/config)
compiler: gcc-7 (Ubuntu
This patch set allows TUN to support the AF_XDP Tx zero-copy feature,
which can significantly reduce CPU utilization for XDP programs.
Since commit fc72d1d54dd9 ("tuntap: XDP transmission"), the pointer
ring has been utilized to queue different types of pointers by encoding
the type into the
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