LinuxKPI: usb: add usb_anchor support

[bz]

Summary

Allow URBs to be anchored and released upon completion keeping a list
of them (managed by the driver). This allows the driver (rtw89) upon
reset or disconnect to cancel all outstanding TX.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days

[aokblast]

Plus these points, usb_unlink_urb_sub bypass unanchored in not started yet branch. Causing a forever run if the xfer hasn't start yet. Also, we need usb_put_urb in the same point

sys/compat/linuxkpi/common/src/linuxkpi_usb.c

1047

Re-check needs to check urb->anchor == ua? It want to prevent condition that reanchor while unanchoring?

[bz]

Thanks for the comment; I have a way larger branch I think than what is in review. Do you want to have a look at the entire bits? I'd be thrilled if someone will review them :) and more than happy to extract the next days.

[aokblast]

In D55035#1341051, @bz wrote:

Thanks for the comment; I have a way larger branch I think than what is in review. Do you want to have a look at the entire bits? I'd be thrilled if someone will review them :) and more than happy to extract the next days.

Do you mean https://reviews.freebsd.org/D54987? I was typing something while you leave your comment:)

[bz]

In D55035#1341066, @aokblast wrote:

In D55035#1341051, @bz wrote:

Thanks for the comment; I have a way larger branch I think than what is in review. Do you want to have a look at the entire bits? I'd be thrilled if someone will review them :) and more than happy to extract the next days.

Do you mean https://reviews.freebsd.org/D54987? I was typing something while you leave your comment:)

No, I mean more changes to be added to the stack; when I first did this it was a/multiple year(s) ago. I put some of that out earlier this year in order to get the de-coupling of LinuxKPI from the native stack structures out but that got into controversial discussions. In the follow-up I added more stuff for more USB wifi drivers ... which I never uploaded to Phab.

I'll go through what you have and would love to put a new stack up next week, if that's okay?

[aokblast]

In D55035#1341099, @bz wrote:

In D55035#1341066, @aokblast wrote:

In D55035#1341051, @bz wrote:

Thanks for the comment; I have a way larger branch I think than what is in review. Do you want to have a look at the entire bits? I'd be thrilled if someone will review them :) and more than happy to extract the next days.

Do you mean https://reviews.freebsd.org/D54987? I was typing something while you leave your comment:)

No, I mean more changes to be added to the stack; when I first did this it was a/multiple year(s) ago. I put some of that out earlier this year in order to get the de-coupling of LinuxKPI from the native stack structures out but that got into controversial discussions. In the follow-up I added more stuff for more USB wifi drivers ... which I never uploaded to Phab.

I'll go through what you have and would love to put a new stack up next week, if that's okay?

Yes, I can review them. I also need somebody to review my USB 3.1 and 3.2 patches:)