netdev - [PATCH net-next 0/3] xsk: introduce atomic for cq in generic

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: <20251124080858.89593-1-kerneljasonxing@gmail.com>
Date: Mon, 24 Nov 2025 16:08:55 +0800
From: Jason Xing <kerneljasonxing@...il.com>
To: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	bjorn@...nel.org,
	magnus.karlsson@...el.com,
	maciej.fijalkowski@...el.com,
	jonathan.lemon@...il.com,
	sdf@...ichev.me,
	ast@...nel.org,
	daniel@...earbox.net,
	hawk@...nel.org,
	john.fastabend@...il.com
Cc: bpf@...r.kernel.org,
	netdev@...r.kernel.org,
	Jason Xing <kernelxing@...cent.com>
Subject: [PATCH net-next 0/3] xsk: introduce atomic for cq in generic

From: Jason Xing <kernelxing@...cent.com>

In the hot path (that is __xsk_generic_xmit()), playing with spin lock
is time consuming. So this series replaces spin lock with atomic
operations to get better performance.

Jason Xing (3):
  xsk: add atomic cached_prod for copy mode
  xsk: add the atomic parameter around cq in generic path
  xsk: convert cq from spin lock protection into atomic operations

 include/net/xsk_buff_pool.h |  5 -----
 net/xdp/xsk.c               | 16 ++++------------
 net/xdp/xsk_buff_pool.c     |  1 -
 net/xdp/xsk_queue.h         | 37 ++++++++++++++++++++++++-------------
 4 files changed, 28 insertions(+), 31 deletions(-)

-- 
2.41.3