[v4,0/4] mt76: channel switch support for USB devices

Message

Markus Theil Nov. 18, 2019, 10:15 p.m. UTC

This patch series adds channel switch support for mt76 usb interfaces.
When testing, I noticed that between 5 or 7 consecutive beacons had the
identical channel switch count set. After some debugging I found out,
that beacon copying over usb took far too long (up to 700ms for one call
of mt76x02u_pre_tbtt_work).

Therefore the first three patches speed up beacon copying and the last
patch enables channel switch support also for usb interfaces.

v4:
* use multiple of 4 len for usb copy again

v3:
* fixed checkpatch errors

v2 (thanks for the comments Lorenzo):
* correctly track beacon data mask
* clean-ups
* make channel switch fn static (reported by kbuild test robot)

Markus Theil (4):
  mt76: mt76x02: ommit beacon slot clearing
  mt76: mt76x02: split beaconing
  mt76: speed up usb bulk copy
  mt76: mt76x02: add channel switch support for usb interfaces

 drivers/net/wireless/mediatek/mt76/mt76.h     |  2 +-
 .../wireless/mediatek/mt76/mt76x02_beacon.c   | 52 ++++++-------------
 .../net/wireless/mediatek/mt76/mt76x02_mac.h  |  1 +
 .../net/wireless/mediatek/mt76/mt76x02_mmio.c |  5 ++
 .../wireless/mediatek/mt76/mt76x02_usb_core.c | 12 +++++
 .../net/wireless/mediatek/mt76/mt76x02_util.c |  2 +-
 .../wireless/mediatek/mt76/mt76x2/usb_main.c  |  7 +++
 drivers/net/wireless/mediatek/mt76/usb.c      | 24 ++++++---
 8 files changed, 60 insertions(+), 45 deletions(-)