CVS commit: src/sys/dev/usb

["matthew green" <mrg%netbsd.org@localhost>]

Module Name:    src
Committed By:   mrg
Date:           Sun Jun 23 02:14:15 UTC 2019

Modified Files:
        src/sys/dev/usb: if_cdce.c if_ure.c if_urevar.h

Log Message:
make cdce(4) and ure(4) usb and mpsafe:

- introduce locking ala smsc(4)/axen(4) style
- convert to mpsafe interfaces
- add tick task to cdce(4) to deal with missing watchdog, and
  actually make the watchdog do something
- convert DELAY() to usbd_delay_ms() in cdce(4) and don't increase
  the time in a potentially unbounded way
- remove spl calls

tested with network cable and usb adapter pullouts, reboots and
many many GBs of data transferred in either direction under load.


To generate a diff of this commit:
cvs rdiff -u -r1.49 -r1.50 src/sys/dev/usb/if_cdce.c
cvs rdiff -u -r1.10 -r1.11 src/sys/dev/usb/if_ure.c
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/usb/if_urevar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.