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-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20231201194829.428a96da@kernel.org>
Date: Fri, 1 Dec 2023 19:48:29 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Lorenzo Bianconi <lorenzo@...nel.org>, aleksander.lobakin@...el.com
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 pabeni@...hat.com, lorenzo.bianconi@...hat.com, bpf@...r.kernel.org,
 hawk@...nel.org, toke@...hat.com, willemdebruijn.kernel@...il.com,
 jasowang@...hat.com, sdf@...gle.com
Subject: Re: [PATCH v3 net-next 2/2] xdp: add multi-buff support for xdp
 running in generic mode

On Fri,  1 Dec 2023 14:48:26 +0100 Lorenzo Bianconi wrote:
> Similar to native xdp, do not always linearize the skb in
> netif_receive_generic_xdp routine but create a non-linear xdp_buff to be
> processed by the eBPF program. This allow to add  multi-buffer support
> for xdp running in generic mode.

Hm. How close is the xdp generic code to veth?
I wonder if it'd make sense to create a page pool instance for each
core, we could then pass it into a common "reallocate skb into a
page-pool backed, fragged form" helper. Common between this code
and veth? Perhaps we could even get rid of the veth page pools
and use the per cpu pools there?

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ