Lorenzo Colitti 424f50e646 usb: gadget: u_ether: enable qmult on SuperSpeed Plus as well ... [ Upstream commit 4eea21dc67 ] The u_ether driver has a qmult setting that multiplies the transmit queue length (which by default is 2). The intent is that it should be enabled at high/super speed, but because the code does not explicitly check for USB_SUPER_PLUS, it is disabled at that speed. Fix this by ensuring that the queue multiplier is enabled for any wired link at high speed or above. Using >= for USB_SPEED_* constants seems correct because it is what the gadget_is_xxxspeed functions do. The queue multiplier substantially helps performance at higher speeds. On a direct SuperSpeed Plus link to a Linux laptop, iperf3 single TCP stream: Before (qmult=1): 1.3 Gbps After (qmult=5): 3.2 Gbps Fixes: 04617db7aa ("usb: gadget: add SS descriptors to Ethernet gadget") Reviewed-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-29 09:07:07 +01:00
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function	usb: gadget: u_ether: enable qmult on SuperSpeed Plus as well	2020-10-29 09:07:07 +01:00
legacy	usb: gadget: legacy: fix redundant initialization warnings	2020-06-03 08:17:54 +02:00
udc	usb: bdc: Halt controller on suspend	2020-08-21 09:48:06 +02:00
composite.c	usb: gadget: Fix issue with config_ep_by_speed function	2020-06-25 15:41:55 +02:00
config.c
configfs.c	USB: gadget: fix illegal array access in binding with UDC	2020-05-20 08:17:16 +02:00
configfs.h
epautoconf.c
functions.c
Kconfig
Makefile
u_f.c
u_f.h	USB: gadget: u_f: Unbreak offset calculation in VLAs	2020-09-03 11:22:34 +02:00
u_os_desc.h
usbstring.c