From: Jason Xing <kerneljasonxing@gmail.com>
To: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, bjorn@kernel.org, magnus.karlsson@intel.com,
jonathan.lemon@gmail.com, sdf@fomichev.me, ast@kernel.org,
daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com,
horms@kernel.org, andrew+netdev@lunn.ch, bpf@vger.kernel.org,
netdev@vger.kernel.org, Jason Xing <kernelxing@tencent.com>
Subject: Re: [PATCH net-next v2 2/9] xsk: add descs parameter in xskq_cons_read_desc_batch()
Date: Tue, 26 Aug 2025 08:10:48 +0800 [thread overview]
Message-ID: <CAL+tcoA-Y0J14U2b4irzqY+-jAcUCVZvEizLACJfZANb85XzNQ@mail.gmail.com> (raw)
In-Reply-To: <aKzTPW4fQ11fqb+b@boxer>
On Tue, Aug 26, 2025 at 5:19 AM Maciej Fijalkowski
<maciej.fijalkowski@intel.com> wrote:
>
> On Mon, Aug 25, 2025 at 09:53:35PM +0800, Jason Xing wrote:
> > From: Jason Xing <kernelxing@tencent.com>
> >
> > Add a new parameter to let generic xmit call this interface in the
> > subsequent patches.
> >
> > Prior to this patch, pool->tx_descs in xskq_cons_read_desc_batch() is
> > only used to store a small number of descs in zerocopy mode. Later
> > another similar cache named xs->desc_batch will be used in copy mode.
> > So adjust the parameter for copy mode.
>
> Explain why you couldn't reuse tx_descs as-is. Pool can not work both in
> copy and zero-copy modes at the same time so I don't see the reason why
> you couldn't reuse this for your needs?
Oh, right, spot on. I can reuse them instead of creating similar
wheels. Let me try this way.
Thanks,
Jason
next prev parent reply other threads:[~2025-08-26 0:11 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-25 13:53 [PATCH net-next v2 0/9] xsk: improvement performance in copy mode Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 1/9] xsk: introduce XDP_GENERIC_XMIT_BATCH setsockopt Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 2/9] xsk: add descs parameter in xskq_cons_read_desc_batch() Jason Xing
2025-08-25 21:18 ` Maciej Fijalkowski
2025-08-26 0:10 ` Jason Xing [this message]
2025-08-25 13:53 ` [PATCH net-next v2 3/9] xsk: introduce locked version of xskq_prod_write_addr_batch Jason Xing
2025-08-25 21:42 ` Maciej Fijalkowski
2025-08-26 0:13 ` Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 4/9] xsk: extend xsk_build_skb() to support passing an already allocated skb Jason Xing
2025-08-25 21:49 ` Maciej Fijalkowski
2025-08-26 0:26 ` Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 5/9] xsk: add xsk_alloc_batch_skb() to build skbs in batch Jason Xing
2025-08-25 16:56 ` kernel test robot
2025-08-27 14:32 ` Alexander Lobakin
2025-08-28 0:38 ` Jason Xing
2025-08-28 15:28 ` Alexander Lobakin
2025-08-29 0:31 ` Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 6/9] xsk: add direct xmit in batch function Jason Xing
2025-08-25 17:34 ` Stanislav Fomichev
2025-08-26 0:27 ` Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 7/9] xsk: support batch xmit main logic Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 8/9] xsk: support generic batch xmit in copy mode Jason Xing
2025-08-25 13:53 ` [PATCH net-next v2 9/9] xsk: support dynamic xmit.more control for batch xmit Jason Xing
2025-08-25 17:44 ` [PATCH net-next v2 0/9] xsk: improvement performance in copy mode Jakub Kicinski
2025-08-26 0:01 ` Jason Xing
2025-08-26 0:29 ` Jakub Kicinski
2025-08-26 0:51 ` Jason Xing
2025-08-26 1:15 ` Jakub Kicinski
2025-08-26 1:49 ` Jason Xing
2025-08-25 21:15 ` Maciej Fijalkowski
2025-08-26 0:06 ` Jason Xing
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