netdev - [PATCH v3 net-next 0/2] add multi-buff support for xdp running in generic mode

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Message-ID: <cover.1701437961.git.lorenzo@kernel.org>
Date: Fri,  1 Dec 2023 14:48:24 +0100
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	lorenzo.bianconi@...hat.com,
	bpf@...r.kernel.org,
	hawk@...nel.org,
	toke@...hat.com,
	aleksander.lobakin@...el.com,
	willemdebruijn.kernel@...il.com,
	jasowang@...hat.com,
	sdf@...gle.com
Subject: [PATCH v3 net-next 0/2] add multi-buff support for xdp running in generic mode

Introduce multi-buffer support for xdp running in generic mode not always
linearizing the skb in netif_receive_generic_xdp routine.

Changes since v2:
- rely on napi_alloc_frag() and napi_build_skb() to build the new skb
Changes since v1:
- explicitly keep the skb segmented in netif_skb_check_for_generic_xdp() and
  do not rely on pskb_expand_head()

Lorenzo Bianconi (2):
  xdp: rely on skb pointer reference in do_xdp_generic and
    netif_receive_generic_xdp
  xdp: add multi-buff support for xdp running in generic mode

 drivers/net/tun.c         |   4 +-
 include/linux/netdevice.h |   2 +-
 net/core/dev.c            | 165 +++++++++++++++++++++++++++++++-------
 3 files changed, 137 insertions(+), 34 deletions(-)

-- 
2.43.0