CVS commit: [netbsd-10] src/sys/dev/usb

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Tue Feb  6 12:18:56 UTC 2024

Modified Files:
        src/sys/dev/usb [netbsd-10]: ehci.c ehcireg.h

Log Message:
Pull up following revision(s) (requested by jmcneill in ticket #585):

        sys/dev/usb/ehcireg.h: revision 1.38
        sys/dev/usb/ehci.c: revision 1.321

Fix DMA sync flags in ehci_append_sqtd

Ensure proper alignment/padding of EHCI hardware descriptors.

These descriptor structs are embedded in structs that contain additional
context for software. With a non cache coherent device and non-padded
descriptors, the device may issue a read/modify/write past the end of
the descriptor, clobbering software state in the process. This was the
root cause of multiple crashes on evbppc with a non cache coherent EHCI.


To generate a diff of this commit:
cvs rdiff -u -r1.315.2.2 -r1.315.2.3 src/sys/dev/usb/ehci.c
cvs rdiff -u -r1.37 -r1.37.50.1 src/sys/dev/usb/ehcireg.h

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