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[v2,00/10] usb/msd: Permit relaxed ordering of IN packets

Message ID 20250411080431.207579-1-npiggin@gmail.com (mailing list archive)
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Series usb/msd: Permit relaxed ordering of IN packets | expand

Message

Nicholas Piggin April 11, 2025, 8:04 a.m. UTC 
This series ultimately permits relaxed ordering of USB mass-storage
packets from the host, as allowed by the usbmassbulk 1.0 spec, but
not usually seen in drivers. AIX drivers do require this ordering.

Since v1:

https://lore.kernel.org/qemu-devel/20241212091323.1442995-1-npiggin@gmail.com/

- Rebased on upstream with one patch from the series merged.
- Fixed a few build warnings on 32-bit hosts.

Thanks,
Nick


Nicholas Piggin (10):
  usb/msd: Split in and out packet handling
  usb/msd: Ensure packet structure layout is correct
  usb/msd: Improved handling of mass storage reset
  usb/msd: Improve packet validation error logging
  usb/msd: Allow CBW packet size greater than 31
  usb/msd: Split async packet tracking into data and csw
  usb/msd: Add some additional assertions
  usb/msd: Rename mode to cbw_state, and tweak names
  usb/msd: Permit a DATA-IN or CSW packet before CBW packet
  usb/msd: Add more tracing

 include/hw/usb/msd.h |  18 +-
 hw/usb/dev-storage.c | 510 ++++++++++++++++++++++++++++---------------
 hw/usb/trace-events  |   9 +-
 3 files changed, 357 insertions(+), 180 deletions(-)