src-test2/sys/dev/usb, branch master

Ensure a minimum packet length before creating a mbuf in if_ure.

2020-12-19T11:03:54Z

Sponsored by: Mellanox Technologies // NVIDIA Networking

Move SYSCTL_ADD_PROC() to unlocked context in if_ure to avoid lock order reversal.

2020-12-19T11:00:11Z

MFC after: 1 week Reported by: Mark Millard Sponsored by: Mellanox Technologies // NVIDIA Networking

usb: Replace ITUNERNET vendor with MICROCHIP and improve product names

2020-12-18T23:31:36Z

These Mini-Box LCDs are using Microchip components and sub-licensed product IDs. Whilst here, update the constant names and descriptions for the products to use the names listed on the manufacturer's website rather than vague ones. The picoLCD 4x20 is named that on the manufacturer's website so prefer that name, even though linux-usb.org lists it with the numbers reversed as one might expect. Reviewed by: hselasky Differential Revision: https://reviews.freebsd.org/D27670

Use __containerof() instead of home-rolled versions.

2020-12-17T20:45:10Z

Reviewed by: imp, hselasky Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D27582

Use more standard types for manipulating pointers.

2020-12-16T00:27:28Z

- Use a uintptr_t cast to get the virtual address of a pointer in USB_P2U() instead of a ptrdiff_t. - Add offsets to a char * pointer directly without roundtripping the pointer through a ptrdiff_t in USB_ADD_BYTES(). Reviewed by: imp, hselasky Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D27581

Improve handling of alternate settings in the USB stack.

2020-12-15T15:36:41Z

Move initialization of num_altsetting under USB_CFG_INIT, else there will be a page fault when enumerating USB devices. PR: 251856 MFC after: 1 week Submitted by: Ma, Horse Sponsored by: Mellanox Technologies // NVIDIA Networking

Improve handling of alternate settings in the USB stack.

2020-12-15T12:05:07Z

Allow setting the alternate interface number to fail when there is only one alternate setting present, to comply with the USB specification. Refactor how iface->num_altsetting is computed. Bump the __FreeBSD_version due to change of core USB structure. PR: 251856 MFC after: 1 week Submitted by: Ma, Horse Sponsored by: Mellanox Technologies // NVIDIA Networking

Improve handling of alternate settings in the USB stack.

2020-12-15T11:51:17Z

Limit the number of alternate settings to 256. Else the alternate index variable may wrap around. PR: 251856 MFC after: 1 week Submitted by: Ma, Horse Sponsored by: Mellanox Technologies // NVIDIA Networking

USB umass: add quirk to not probe

2020-12-01T18:24:06Z

Some USB WLAN devices have "on-board" storage showing up as umass and making the root mount wait for a very long time. The WLAN drivers know how to deal with that an issue an eject command later when attaching themselves. Introduce a quirk to not probe these devices as umass and avoid hangs and confusion altogether. Reviewed by: hselasky, imp MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D27434

Make MAXPHYS tunable. Bump MAXPHYS to 1M.

2020-11-28T12:12:51Z

Replace MAXPHYS by runtime variable maxphys. It is initialized from MAXPHYS by default, but can be also adjusted with the tunable kern.maxphys. Make b_pages[] array in struct buf flexible. Size b_pages[] for buffer cache buffers exactly to atop(maxbcachebuf) (currently it is sized to atop(MAXPHYS)), and b_pages[] for pbufs is sized to atop(maxphys) + 1. The +1 for pbufs allow several pbuf consumers, among them vmapbuf(), to use unaligned buffers still sized to maxphys, esp. when such buffers come from userspace (*). Overall, we save significant amount of otherwise wasted memory in b_pages[] for buffer cache buffers, while bumping MAXPHYS to desired high value. Eliminate all direct uses of the MAXPHYS constant in kernel and driver sources, except a place which initialize maxphys. Some random (and arguably weird) uses of MAXPHYS, e.g. in linuxolator, are converted straight. Some drivers, which use MAXPHYS to size embeded structures, get private MAXPHYS-like constant; their convertion is out of scope for this work. Changes to cam/, dev/ahci, dev/ata, dev/mpr, dev/mpt, dev/mvs, dev/siis, where either submitted by, or based on changes by mav. Suggested by: mav (*) Reviewed by: imp, mav, imp, mckusick, scottl (intermediate versions) Tested by: pho Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D27225