From 8662b2518ff7995002378058488326ef7cb80de8 Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Sat, 12 Feb 2011 20:43:42 +0200 Subject: zd1211rw: move async iowrite16v up to callers Writing beacon to device happen through multiple write command calls. zd_usb_iowrite16v uses synchronous urb call and with multiple write commands in row causes high CPU usage. Make asynchronous zd_usb_iowrite16v_async available outside zd_usb.c and use where possible. This lower CPU usage from ~10% to ~2% on Intel Atom when running AP-mode with 100 TU beacon interval. Signed-off-by: Jussi Kivilinna Signed-off-by: John W. Linville --- drivers/net/wireless/zd1211rw/zd_usb.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/net/wireless/zd1211rw/zd_usb.h') diff --git a/drivers/net/wireless/zd1211rw/zd_usb.h b/drivers/net/wireless/zd1211rw/zd_usb.h index 92914269206..b3df2c8116c 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.h +++ b/drivers/net/wireless/zd1211rw/zd_usb.h @@ -273,6 +273,10 @@ static inline int zd_usb_ioread16(struct zd_usb *usb, u16 *value, return zd_usb_ioread16v(usb, value, (const zd_addr_t *)&addr, 1); } +void zd_usb_iowrite16v_async_start(struct zd_usb *usb); +int zd_usb_iowrite16v_async_end(struct zd_usb *usb, unsigned int timeout); +int zd_usb_iowrite16v_async(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs, + unsigned int count); int zd_usb_iowrite16v(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs, unsigned int count); -- cgit v1.2.3-70-g09d2