From: Daniel Borkmann <daniel@iogearbox.net>
To: Alexander Lobakin <alobakin@pm.me>,
Magnus Karlsson <magnus.karlsson@intel.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
"Jason Wang" <jasowang@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"Jonathan Lemon" <jonathan.lemon@gmail.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Björn Töpel" <bjorn@kernel.org>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"John Fastabend" <john.fastabend@gmail.com>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Martin KaFai Lau" <kafai@fb.com>,
"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
"KP Singh" <kpsingh@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Eric Dumazet" <eric.dumazet@gmail.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Dust Li" <dust.li@linux.alibaba.com>,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org
Subject: Re: [PATCH v8 bpf-next 0/5] xsk: build skb by page (aka generic zerocopy xmit)
Date: Thu, 25 Feb 2021 01:46:26 +0100 [thread overview]
Message-ID: <925e70eb-3cc6-a135-decc-22167f2ecaf0@iogearbox.net> (raw)
In-Reply-To: <20210218204908.5455-1-alobakin@pm.me>
On 2/18/21 9:49 PM, Alexander Lobakin wrote:
> This series introduces XSK generic zerocopy xmit by adding XSK umem
> pages as skb frags instead of copying data to linear space.
> The only requirement for this for drivers is to be able to xmit skbs
> with skb_headlen(skb) == 0, i.e. all data including hard headers
> starts from frag 0.
> To indicate whether a particular driver supports this, a new netdev
> priv flag, IFF_TX_SKB_NO_LINEAR, is added (and declared in virtio_net
> as it's already capable of doing it). So consider implementing this
> in your drivers to greatly speed-up generic XSK xmit.
[...]
Applied, thanks!
prev parent reply other threads:[~2021-02-25 0:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-18 20:49 [PATCH v8 bpf-next 0/5] xsk: build skb by page (aka generic zerocopy xmit) Alexander Lobakin
2021-02-18 20:49 ` [PATCH v8 bpf-next 1/5] netdevice: add missing IFF_PHONY_HEADROOM self-definition Alexander Lobakin
2021-02-18 20:50 ` [PATCH v8 bpf-next 2/5] net: add priv_flags for allow tx skb without linear Alexander Lobakin
2021-02-18 20:50 ` [PATCH v8 bpf-next 3/5] virtio-net: support IFF_TX_SKB_NO_LINEAR Alexander Lobakin
2021-02-18 20:50 ` [PATCH v8 bpf-next 4/5] xsk: respect device's headroom and tailroom on generic xmit path Alexander Lobakin
2021-02-18 20:50 ` [PATCH v8 bpf-next 5/5] xsk: build skb by page (aka generic zerocopy xmit) Alexander Lobakin
2021-02-25 0:46 ` Daniel Borkmann [this message]
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