Mike Looijmans bba787a860 usb: gadget: ether: Allow jumbo frames ... USB network adapters support Jumbo frames. The only thing blocking that feature is the code in the gadget driver that disposes of packets larger than 1518 bytes, and the limit on the ioctl to set the mtu. This patch relaxes these limits, and allows up to 15k frames sizes. The 15k value was chosen because 16k does not work on all platforms, and usingclose to 16k will result in allocating 5 or 8 4k pages to store the skb, wasting pages at no measurable performance gain. On a topic-miami board (Zynq-7000), iperf3 performance reports: MTU= 1500, PC-to-gadget: 139 Mbps, Gadget-to-PC: 116 Mbps MTU=15000, PC-to-gadget: 239 Mbps, Gadget-to-PC: 361 Mbps On boards with slower CPUs the performance improvement will be relatively much larger, e.g. an OMAP-L138 increased from 40 to 220 Mbps using a similar patch on an 2.6.37 kernel. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Signed-off-by: Felipe Balbi <balbi@ti.com>		2015-09-27 10:54:31 -05:00
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function	usb: gadget: ether: Allow jumbo frames	2015-09-27 10:54:31 -05:00
legacy	usb: gadget: legacy: nokia: add CONFIG_BLOCK dependency	2015-08-06 11:29:19 -05:00
udc	usb: gadget: at91_udc: move at91_udc_data in at91_udc.h	2015-09-27 10:54:31 -05:00
composite.c	drivers/usb/gadget/composite.c: i18n is not an acronym	2015-08-07 14:03:23 +02:00
config.c	usb: gadget: add usb otg descriptor allocate and init interface	2015-07-29 09:59:21 -05:00
configfs.c	usb: gadget: configfs: allocate and init otg descriptor by otg capabilities	2015-07-29 09:59:21 -05:00
configfs.h	usb: gadget: OS descriptors: provide interface directory names	2014-06-19 10:06:48 -05:00
epautoconf.c	usb: gadget: fix possible regression introduced with ep->claimed	2015-09-14 09:51:50 -05:00
functions.c
Kconfig	usb: gadget: mass_storage: allow for deeper queue lengths	2015-09-27 10:54:31 -05:00
Makefile	usb: gadget: use $(srctree) instead of $(PWD) for includes	2014-08-29 15:53:46 -05:00
u_f.c
u_f.h	usb: gadget: FunctionFS: share VLA macros with all usb gadget files	2014-05-14 09:37:27 -05:00
u_os_desc.h	usb: gadget: u_os_desc: helper functions for accessing ext prop buffer	2014-07-10 08:36:51 -05:00
usbstring.c