The main purpose is to add commandline support for Transmitter Delay Compensation (TDC) in iproute. Other issues found during the development of this feature also get addressed. This patch series contains four patches which respectively: 1. Correct the bittiming ranges in the print_usage function. 2. factorize the many print_*(PRINT_JSON, ...) and fprintf occurrences in a single print_*(PRINT_ANY, ...) call and fix the signedness while doing that. 3. report the value of the bitrate prescalers (brp and dbrp). 4. adds command line support for the TDC in iproute and goes together with below series in the kernel: https://lore.kernel.org/r/20210603151550.140727-3-mailhol.vincent@xxxxxxxxxx ** Changelog ** >From RFC v1 to RFC v2: * Add an additional patch to the series to fix the issues reported by Stephen Hemminger Ref: https://lore.kernel.org/linux-can/20210506112007.1666738-1-mailhol.vincent@xxxxxxxxxx/T/#t >From RFC v2 to v3: * Dropped the RFC tag. Now that the kernel patch reach the testing branch, I am finaly ready. * Regression fix: configuring a link with only nominal bittiming returned -EOPNOTSUPP * Added two more patches to the series: - iplink_can: fix configuration ranges in print_usage() - iplink_can: print brp and dbrp bittiming variables * Other small fixes on formatting. Vincent Mailhol (4): iplink_can: fix configuration ranges in print_usage() iplink_can: use PRINT_ANY to factorize code and fix signedness iplink_can: print brp and dbrp bittiming variables iplink_can: add new CAN FD bittiming parameters: Transmitter Delay Compensation (TDC) include/uapi/linux/can/netlink.h | 25 +- ip/iplink_can.c | 430 ++++++++++++++++--------------- 2 files changed, 247 insertions(+), 208 deletions(-) -- 2.31.1
