On Wed, 31 Dec 2025 at 23:47, Rakuram Eswaran [off-list ref] wrote:

Extend the SocketCAN documentation to cover CAN XL support, including
the updated frame layout, MTU definitions, mixed-mode operation, and
bitrate/XBTR configuration. The new text also explains how error
signalling behaviour differs between CAN FD, CAN XL mixed-mode, and
CAN-XL-only operation, as implemented in the current kernel stack.

In addition, provide example iproute2 "ip" tool commands demonstrating
how to configure CAN XL interfaces and corresponding bittiming
attributes.

These updates align the documentation with the behaviour of recent
CAN XL implementations and help users and developers set up correct
test environments.

Signed-off-by: Rakuram Eswaran <redacted>
---
Tested the documentation build with Sphinx; no errors or warnings.

Used below command for testing:
     make htmldocs SPHINX_WARNINGS_LOG=warnings.log

 Documentation/networking/can.rst | 615 +++++++++++++++++++++++++++++++++------
 1 file changed, 518 insertions(+), 97 deletions(-)

Hello Oliver,

Any feedback on this documentation update patch before sending v2?

Best Regards,
Rakuram