netdev - [PATCH v2 bpf-next 0/3] xsk: refactors around generic xmit side

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Message-Id: <20250925160009.2474816-1-maciej.fijalkowski@intel.com>
Date: Thu, 25 Sep 2025 18:00:06 +0200
From: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To: bpf@...r.kernel.org,
	ast@...nel.org,
	daniel@...earbox.net,
	andrii@...nel.org
Cc: netdev@...r.kernel.org,
	magnus.karlsson@...el.com,
	stfomichev@...il.com,
	kerneljasonxing@...il.com,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: [PATCH v2 bpf-next 0/3] xsk: refactors around generic xmit side

Hi,

this small patchset is about refactoring code around xsk_build_skb() as
it became pretty heavy. Generic xmit is a bit hard to follow so here are
three clean ups to start with making this code more friendly.

Thanks,
Maciej

v1 link:
https://lore.kernel.org/bpf/20250922152600.2455136-1-maciej.fijalkowski@intel.com/T/#u

v1->v2:
* fix IFF_TX_SKB_NO_LINEAR path in patch 1 (Stan, Jason)
* fix IFF_TX_SKB_NO_LINEAR path in patch 2 (Stan, Jason)
* enable metadata for IFF_TX_SKB_NO_LINEAR
* add acks


Maciej Fijalkowski (3):
  xsk: avoid overwriting skb fields for multi-buffer traffic
  xsk: remove @first_frag from xsk_build_skb()
  xsk: wrap generic metadata handling onto separate function

 net/xdp/xsk.c | 113 ++++++++++++++++++++++++++++----------------------
 1 file changed, 63 insertions(+), 50 deletions(-)

-- 
2.43.0