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17f6ed62b0
linux/drivers/usb/gadget
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Jussi Kivilinna 17f6ed62b0 usb: gadget: net2280: match interrupt endpoints to PIO endpoints and DMA to bulk 
With composite gadget (ACM + NCM), USB3380 to host TCP transfer
speed dropped to 150 Mbit/s compared to 900 Mbit/s with NCM
gadget. Problem seems to be that net2280/USB3380 has only four
DMA channels and those DMA channels are allocated to first HW
endpoints. Endpoint match function was mapping endpoint names
directly, so NCM did not get DMA for bulk endpoints.

This patch changed match_ep to prefer DMA enabled hw endpoints
for bulk usb endpoints and PIO for interrupt usb endpoints.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-25 12:13:10 +03:00
..
function usb: gadget: f_ncm: add SuperSpeed descriptors for CDC NCM 2016-08-25 12:13:09 +03:00
legacy usb/gadget: fix gadgetfs aio support. 2016-08-11 15:09:47 +03:00
udc usb: gadget: net2280: match interrupt endpoints to PIO endpoints and DMA to bulk 2016-08-25 12:13:10 +03:00
composite.c usb: gadget: composite: Fix return value in case of error 2016-08-11 15:09:46 +03:00
config.c usb: Use (foo *) instead of (foo*). 2016-06-21 11:16:15 +03:00
configfs.c usb: gadget: configfs: log function unbinding as information 2016-08-25 12:13:08 +03:00
configfs.h usb: gadget: OS descriptors: provide interface directory names 2014-06-19 10:06:48 -05:00
epautoconf.c usb: gadget: epautoconf: add usb_ep_autoconfig_release() function 2015-09-27 10:54:31 -05:00
functions.c
Kconfig usb: gadget: storage: increase maximum storage num buffers 2016-06-20 12:30:03 +03:00
Makefile usb: gadget: use $(srctree) instead of $(PWD) for includes 2014-08-29 15:53:46 -05:00
u_f.c usb: gadget: define free_ep_req as universal function 2015-12-15 09:12:41 -06:00
u_f.h usb: gadget: define free_ep_req as universal function 2015-12-15 09:12:41 -06:00
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 usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00