linux/drivers/usb/renesas_usbhs
Yoshihiro Shimoda ee5acabf58 usb: renesas_usbhs: set quirk_avoids_skb_reserve if USB-DMAC is used
This patch sets the quirk_avoids_skb_reserve flag to improve performance
of a network gadget driver (e.g. f_ncm.c) if USB-DMAC is used.

For example (on r8a7795 board + f_ncm.c + iperf udp mode / receiving):
  - without this patch:  90.3 Mbits/sec
  - with    this patch: 273   Mbits/sec

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-08-31 10:06:04 +03:00
..
common.c usb: renesas_usbhs: add a compatible string for r8a7796 2016-08-31 10:05:46 +03:00
common.h usb: renesas_usbhs: add support for USB-DMAC 2015-03-13 10:41:19 -05:00
fifo.c usb: renesas_usbhs: Use dmac only if the pipe type is bulk 2016-08-11 15:09:43 +03:00
fifo.h usb: renesas_usbhs: constify usbhs_pkt_handle structures 2016-01-24 19:45:09 -08:00
Kconfig usb: renesas_usbhs: Use ARCH_RENESAS 2016-02-20 20:21:53 -08:00
Makefile usb: renesas_usbhs: add R-Car Gen3 power control 2016-03-04 15:14:28 +02:00
mod_gadget.c usb: renesas_usbhs: set quirk_avoids_skb_reserve if USB-DMAC is used 2016-08-31 10:06:04 +03:00
mod_host.c usb: renesas_usbhs: mod_host: don't print on ENOMEM 2016-08-29 10:48:20 +03:00
mod.c usb: renesas_usbhs: avoid uninitialized variable use 2015-05-22 08:52:16 -05:00
mod.h
pipe.c usb: renesas_usbhs: pipe: don't print on ENOMEM 2016-08-29 10:48:23 +03:00
pipe.h usb: renesas_usbhs: change arguments of dma_map_ctrl() 2016-04-19 11:11:54 +03:00
rcar2.c usb: renesas_usbhs: Remove unneeded #include <linux/platform_data/gpio-rcar.h> 2015-10-20 16:03:36 +02:00
rcar2.h usb: renesas_usbhs: add R-Car Gen. 2 init and power control 2014-07-16 10:06:32 -05:00
rcar3.c usb: renesas_usbhs: make usbhs_write32() static 2016-06-22 11:16:07 +03:00
rcar3.h usb: renesas_usbhs: add R-Car Gen3 power control 2016-03-04 15:14:28 +02:00