From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
To: "Björn Töpel" <bjorn@kernel.org>
Cc: <netdev@vger.kernel.org>, <bpf@vger.kernel.org>,
<magnus.karlsson@intel.com>, <stfomichev@gmail.com>,
<kuba@kernel.org>, <pabeni@redhat.com>,
<tushar.vyavahare@intel.com>, <kerneljasonxing@gmail.com>
Subject: Re: [PATCH v2 net-next 02/14] selftests: xsk: drop the single-interface loopback mode
Date: Fri, 9 Oct 2026 14:43:44 +0200 [thread overview]
Message-ID: <asjhgIQLaM/IUXkg@boxer> (raw)
In-Reply-To: <87wlrrqk9n.fsf@all.your.base.are.belong.to.us>
On Fri, Oct 09, 2026 at 11:46:12AM +0200, Björn Töpel wrote:
> Maciej Fijalkowski <maciej.fijalkowski@intel.com> writes:
>
> > xskxceiver -i ethX -i ethX was dedicated for HW tests and both sockets
> > were bound on queue 0 of one interface, which the kernel only allows
> > with a shared UMEM setting. That mode is going away: the endpoints are
> > about to become separate processes and would have to share the UMEM
> > mapping and the socket fd across them.
>
> I'm *not* asking you to add anything, but curious if the HW
> loopback-plug mode is supported running two processes?
You could now spawn two xskxceiver's (rx/tx) on the same interface and
would achieve the same what we've been doing via
ethtool -K $IFACE loopback <on|off> with single xskxceiver process.
>
>
> Björn
next prev parent reply other threads:[~2026-10-09 12:43 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-08 11:48 [PATCH v2 net-next 00/14] selftests: net: migrate AF_XDP test suite over to net Maciej Fijalkowski
2026-10-08 11:48 ` [PATCH v2 net-next 01/14] selftests: xsk: factor endpoint work out of pthread wrappers Maciej Fijalkowski
2026-10-08 11:48 ` [PATCH v2 net-next 02/14] selftests: xsk: drop the single-interface loopback mode Maciej Fijalkowski
2026-10-09 9:46 ` Björn Töpel
2026-10-09 12:43 ` Maciej Fijalkowski [this message]
2026-10-08 11:48 ` [PATCH v2 net-next 03/14] selftests/bpf: drop the test_progs AF_XDP wrapper Maciej Fijalkowski
2026-10-08 11:48 ` [PATCH v2 net-next 04/14] selftests: net: add a generic rule for BPF skeletons Maciej Fijalkowski
2026-10-08 11:49 ` [PATCH v2 net-next 05/14] selftests: xsk: move the AF_XDP test suite to selftests/net Maciej Fijalkowski
2026-10-09 11:18 ` Björn Töpel
2026-10-09 12:46 ` Maciej Fijalkowski
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 11:49 ` [PATCH v2 net-next 06/14] selftests: xsk: collect interface capabilities in struct xsk_caps Maciej Fijalkowski
2026-10-08 11:49 ` [PATCH v2 net-next 07/14] selftests: xsk: split xskxceiver main() into setup, run and cleanup Maciej Fijalkowski
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 11:49 ` [PATCH v2 net-next 08/14] selftests: xsk: run one test case per xskxceiver invocation Maciej Fijalkowski
2026-10-09 11:25 ` Björn Töpel
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 11:49 ` [PATCH v2 net-next 09/14] selftests: xsk: run the RX and TX endpoints in separate processes Maciej Fijalkowski
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 11:49 ` [PATCH v2 net-next 10/14] selftests: xsk: add a hardware mode to xskxceiver Maciej Fijalkowski
2026-10-09 11:50 ` sashiko-bot
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 11:49 ` [PATCH v2 net-next 11/14] selftests: xsk: pass non-test traffic to the stack in hardware mode Maciej Fijalkowski
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 11:49 ` [PATCH v2 net-next 12/14] selftests: xsk: share test case definitions with hardware runner Maciej Fijalkowski
2026-10-09 12:12 ` Björn Töpel
2026-10-09 12:52 ` Maciej Fijalkowski
2026-10-08 11:49 ` [PATCH v2 net-next 13/14] selftests: drv-net: test AF_XDP zero-copy with an SKB peer Maciej Fijalkowski
2026-10-08 21:37 ` Jakub Kicinski
2026-10-09 13:13 ` Maciej Fijalkowski
2026-10-09 11:50 ` sashiko-bot
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 11:49 ` [PATCH v2 net-next 14/14] selftests: xsk: document generic and hardware endpoint runs Maciej Fijalkowski
2026-10-08 21:41 ` Jakub Kicinski
2026-10-12 8:50 ` netdev-bot+sashiko
2026-10-08 21:30 ` [PATCH v2 net-next 00/14] selftests: net: migrate AF_XDP test suite over to net Jakub Kicinski
2026-10-09 12:02 ` Björn Töpel
2026-10-09 13:15 ` Maciej Fijalkowski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=asjhgIQLaM/IUXkg@boxer \
--to=maciej.fijalkowski@intel.com \
--cc=bjorn@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=kerneljasonxing@gmail.com \
--cc=kuba@kernel.org \
--cc=magnus.karlsson@intel.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=stfomichev@gmail.com \
--cc=tushar.vyavahare@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.