Hello Marc,
since we missed the 6.0 merge window end of July there has been no
functional change to this patch set.
We are now at 6.0-rc5 again and I would like to extend the CI/test and
usage coverage in net-next and other linux-next trees for these changes.
Can you please upstream this patch set when there are no more remarks
from your side either?
Many thanks,
Oliver
On 12.09.22 19:07, Oliver Hartkopp wrote:
The CAN with eXtended data Length (CAN XL) is a new CAN protocol with a
10Mbit/s data transfer with a new physical layer transceiver (for this
data section). CAN XL allows up to 2048 byte of payload and shares the
arbitration principle (11 bit priority) known from Classical CAN and
CAN FD. RTR and 29 bit identifiers are not implemented in CAN XL.
A short introdution to CAN XL can be found here:
https://www.can-cia.org/can-knowledge/can/can-xl/
https://github.com/linux-can/can-doc/blob/master/presentations/CAN-XL-Intro.pdf
V2: Major rework after discussion and feedback on Linux-CAN ML
- rework of struct canxl_frame
- CANXL_XLF flag is now the switch between CAN XL and CAN/CANFD
- variable length in r/w operations for CAN XL frames
- write CAN XL frame to raw socket enforces size <-> canxl_frame.len sync
V3: Fix length for CAN XL frames inside the sk_buff
- extend the CAN_RAW sockopt to handle fixed/truncated read/write operations
V4: Fix patch 5 (can: raw: add CAN XL support)
- fix return value (move 'err = -EINVAL' in raw_sendmsg())
- add CAN XL frame handling in can_rcv()
- change comment for CAN_RAW_XL_[RT]X_DYN definition (allow -> enable)
V5: Remove CAN_RAW_XL_[RT]X_DYN definition again
- CAN_RAW_XL_[RT]X_DYN (truncated data) feature is now enabled by default
- use CANXL_MIN_DLEN instead of '1' in canxl_frame definition
- add missing 'err = -EINVAL' initialization in raw_sendmsg())
V6:
- rework an separate skb identification and length helpers
- add CANFD_FDF flag in all CAN FD frame structures
- simplify patches for infrastructure and raw sockets
- add vxcan support in virtual CAN interface patch
V7:
- fixed indention as remarked by Marc
- set CANFD_FDF flag when detecting CAN FD frames generated by PF_PACKET
- Allow to use variable CAN XL MTU sizes to enforce real time requirements
on CAN XL segments (e.g. to support of CAN CiA segmentation concept)
V8:
- fixed typo as remarked by Vincent
- rebased to latest can-next/net-next tree
V9:
- rebased to latest can-next/net-next tree
- updated and extended public available CAN XL documenatation in cover letter
- renamed struct canxl_frame variable cfx to cxl as suggested by Vincent
- Added Acked-by: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx> tag
Oliver Hartkopp (7):
can: skb: unify skb CAN frame identification helpers
can: skb: add skb CAN frame data length helpers
can: set CANFD_FDF flag in all CAN FD frame structures
can: canxl: introduce CAN XL data structure
can: canxl: update CAN infrastructure for CAN XL frames
can: dev: add CAN XL support to virtual CAN
can: raw: add CAN XL support
drivers/net/can/ctucanfd/ctucanfd_base.c | 1 -
drivers/net/can/dev/rx-offload.c | 2 +-
drivers/net/can/dev/skb.c | 113 ++++++++++++++++-------
drivers/net/can/vcan.c | 12 +--
drivers/net/can/vxcan.c | 8 +-
include/linux/can/dev.h | 5 +
include/linux/can/skb.h | 57 +++++++++++-
include/uapi/linux/can.h | 55 ++++++++++-
include/uapi/linux/can/raw.h | 1 +
include/uapi/linux/if_ether.h | 1 +
net/can/af_can.c | 76 ++++++++-------
net/can/bcm.c | 9 +-
net/can/gw.c | 4 +-
net/can/isotp.c | 2 +-
net/can/j1939/main.c | 4 +
net/can/raw.c | 55 ++++++++---
16 files changed, 299 insertions(+), 106 deletions(-)
