linux-kernel - [RFC ixgbe 0/2] ixgbe: Implement support for ndo_xdp_xmit in skb mode and fix CPU to ring assignment

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251009192831.3333763-1-dev@nalramli.com>
Date: Thu,  9 Oct 2025 15:28:29 -0400
From: "Nabil S. Alramli" <dev@...ramli.com>
To: anthony.l.nguyen@...el.com,
	przemyslaw.kitszel@...el.com
Cc: andrew+netdev@...n.ch,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	ast@...nel.org,
	daniel@...earbox.net,
	hawk@...nel.org,
	john.fastabend@...il.com,
	lishujin@...ishou.com,
	xingwanli@...ishou.com,
	intel-wired-lan@...ts.osuosl.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org,
	team-kernel@...tly.com,
	khubert@...tly.com,
	nalramli@...tly.com,
	dev@...ramli.com
Subject: [RFC ixgbe 0/2] ixgbe: Implement support for ndo_xdp_xmit in skb mode and fix CPU to ring assignment

Hello Kyle,

Please take a look at this patch that I plan to submit upstream, let me
know if you agree.

Hello ixgbe maintainers,

This patch is a RFC to add the ability to transmit packets using
BPF_F_TEST_XDP_LIVE_FRAMES in skb mode to the ixgbe driver. Today this
functionality does not exist because the ndo_xdp_xmit operation handler,
ixgbe_xdp_xmit, expects a native XDP program in adapter->xdp_prog. This
results in a no-op essentially. To add this support, I use the tx_ring
instead of the xdp_ring and allocate a skb based on the xdpf, and then use
dev_direct_xmit to queue the xdp for tansmission.

May I get feedback on the idea and the approach in this patch?

Thank you.

Nabil S. Alramli (2):
  ixgbe: Implement support for ndo_xdp_xmit in skb mode
  ixgbe: Fix CPU to ring assignment

 drivers/net/ethernet/intel/ixgbe/ixgbe.h      | 16 +++----
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 43 +++++++++++++++++--
 2 files changed, 47 insertions(+), 12 deletions(-)

-- 
2.43.0