Use linear fragment and not a single usb scatter-gather buffer in mt76u
{tx,rx} datapath if the usb controller has sg data length constraints.
Moreover add disable_usb_sg module parameter in order to explicitly
disable scatter-gather. Some users have reported sg issues on AMD IOMMU
Lorenzo Bianconi (4):
mt76: usb: move mt76u_check_sg in usb.c
mt76: usb: do not use sg buffer for fw upload
mt76: usb: use a linear buffer for tx/rx datapath if sg is not
supported
mt76: usb: introduce disable_usb_sg parameter
drivers/net/wireless/mediatek/mt76/mt76.h | 14 +-
.../net/wireless/mediatek/mt76/mt76x0/usb.c | 2 +-
.../wireless/mediatek/mt76/mt76x02_usb_mcu.c | 9 +-
.../wireless/mediatek/mt76/mt76x2/usb_init.c | 2 +-
drivers/net/wireless/mediatek/mt76/usb.c | 132 +++++++++++++-----
drivers/net/wireless/mediatek/mt76/usb_mcu.c | 5 +-
6 files changed, 107 insertions(+), 57 deletions(-)
--
2.20.1
