Based on usb_ecm and other native USB ethernet drivers which share a
similar structure.
References used to implement this:
- FreeBSD urndis driver
- [MS-RNDIS].pdf v20140501
- Microsoft list of RNDIS OIDs
TODO:
- Better handling of "request id" field to make sure the replies we get
match up with the requests we sent, and it could allow to have
multiple requests in flight. However, the FreeBSD driver doesn't
bother to implement this, if you only ever have one request in flight
and wait for a reply before sending another, this isn't really needed.
- Endian safety, this code will only work on little endian systems for
now. Several structures sent/received to/from the device must be little
endian, so on big endian platforms a lot of byteswapping will be needed,
or the code rewritten to use some smarter object and not a plain
struct for all of these.
- Investigate if it's possible to send/receive multiple ethernet frames
in a single USB transaction for better performance. Our driver
structure doesn't really allow for it unless the driver implements
some buffering on its own.
Change-Id: I2c6dacf0c1aeb6c7c1c112e9b16a63e586ea979a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5281
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
b248954676