linux-kernel - [PATCH 0/2] can: per-device hardware filter support

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Message-ID: <20230817101014.3484715-1-martin@geanix.com>
Date:   Thu, 17 Aug 2023 12:10:12 +0200
From:   Martin Hundebøll <martin@...nix.com>
To:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Chandrasekar Ramakrishnan <rcsekar@...sung.com>
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Martin Hundebøll <martin@...nix.com>
Subject: [PATCH 0/2] can: per-device hardware filter support

Hi all,

Based on the prior discussions on hardware filtering in CAN devices[0],
I've implemented such support in the m_can driver.

The first patch is almost entirely identical to Oliver Hartkopp's patch
from 2018[1] - I've just rebased it to v6.6 and fixed a checkpatch
warning. Not sure what to do about the "Not-Signed-off-by" tag though?

The second patch is new. I've tested it with a tcan4550 device together
with Oliver's proof-of-concept change in iproute2[2].

Has anyone tried this approach with other devices, e.g. sja1000 ?

Thanks,
Martin

[0] https://lore.kernel.org/linux-can/6B05F8DE-7FF3-4065-9828-530BB9C91D1B@vanille.de/T/
[1] https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git/commit/?h=can-hw-filter&id=87128f7a953ef2eef5f2d2a02ce354350e2c4f7f
[2] https://marc.info/?l=linux-can&m=151949929522529

Martin Hundebøll (2):
  can: netlink: support setting hardware filters
  can: m_can: support setting hw filters

 drivers/net/can/dev/dev.c        |   3 +
 drivers/net/can/dev/netlink.c    |  33 ++++++++
 drivers/net/can/m_can/m_can.c    | 137 ++++++++++++++++++++++++++++++-
 include/linux/can/dev.h          |   5 ++
 include/uapi/linux/can/netlink.h |   1 +
 5 files changed, 175 insertions(+), 4 deletions(-)

-- 
2.41.0