Canfd support

[tkgdsg]

CANFD support

I've added new fd dedicated frame for state_raw.
Could I get your opinion on whether this implementation method is correct?

[yegorich]

@tkgdsg @nanitsuku could you rebase your PR against the master branch?

[tkgdsg]

@yegorich
Hi. I've rebased on latest master.

[yegorich]

@hartkopp @mocle could you take a look at this PR? I am still on the pre-CAN FD hardware :-(

[hartkopp]

Will do the next days. I did a short review and have some remarks.
Thanks for the heads up!

[hartkopp]

Hi @nanitsuku @tkgdsg ,
this patchset can not be merged in this way.
You started with an initial patch which introduces lots of changes (e.g. also indention and wrong whitespace changes or the changes in state_bcm.c) which are then fixed in the follow up commits. This is not how pull requests are intended.
E.g. the patch "support canfd for can raw" reverts the changes to state_bcm.c
And the "< fdframe" command still handles only 8 bytes.
Do you plan to support the BCM functionality?

In general please try to provide several step-by-step commits that can be easily reviewed and understood.

E.g.

• convert to use struct canfd_frame
• figure out the interface capabilities
• convert the protocol flavors like state_raw and state_bcm
• other changes
• documentation

Thanks