Baruch Siach 5664dd5561 enc28j60: reduce the number of spi transfers in enc28j60_set_bank() ... A major source of overhead in the enc28j60 driver is the SPI transfers. Each SPI transfer entails two kernel thread context switches. One major source of SPI transfers is the enc28j60_set_bank() functions which runs before every register access. This patch reduces the number of SPI transfers that enc28j60_set_bank() performs in two ways: 1. removes unnecessary bank switch for the registers that are present in all banks 2. when switching from banks 0 or 3 to banks 1 or 2 (i.e. only one bit changes) enc28j60_set_bank() does only one SPI transfer instead of two According to my tests these changes reduce the number of SPI transfers in about 25%. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>		2008-12-18 22:27:39 -08:00
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accessibility
acpi	ACPI toshiba: only register rfkill if bt is enabled	2008-12-15 16:27:07 -08:00
amba
ata	ata: Fix experimental tags	2008-12-09 00:44:29 -05:00
atm	ATM: horizon, fix hrz_probe fail path	2008-11-29 20:42:28 -08:00
auxdisplay
base
block	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2008-12-15 20:03:50 -08:00
bluetooth	Bluetooth: Enable per-module dynamic debug messages	2008-11-30 12:17:28 +01:00
cdrom	Commands needing to be retried require a complete re-initialization.	2008-12-12 16:04:26 +01:00
char	console ASCII glyph 1:1 mapping	2008-12-13 11:25:49 -08:00
clocksource
connector
cpufreq
cpuidle
crypto	fix talitos	2008-11-30 10:03:36 -08:00
dca
dio
dma
edac	i82875p_edac: fix module remove	2008-12-01 19:55:25 -08:00
eisa
firewire	firewire: fw-ohci: fix IOMMU resource exhaustion	2008-12-10 12:45:34 +01:00
firmware
gpio
gpu	drm/i915: Disable the GM965 MSI errata workaround.	2008-12-09 15:37:24 +10:00
hid	HID: Apple ALU wireless keyboards are bluetooth devices	2008-11-28 15:09:26 +01:00
hwmon	hwmon: applesmc: make applesmc load automatically on startup	2008-12-01 19:55:24 -08:00
i2c	i2c-highlander: Trivial endian casting fixes	2008-12-11 12:11:21 +01:00
ide	[IA64] Clear up section mismatch for ioc4_ide_attach_one.	2008-12-09 10:08:48 -08:00
idle
ieee1394	ieee1394: node manager causes up to ~3.25s delay in freezing tasks	2008-12-09 19:34:33 +01:00
infiniband	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2008-12-02 19:50:27 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2008-11-30 11:05:21 -08:00
isdn	isdn: eicon: fix sparse warning: make global functions static	2008-12-16 01:17:33 -08:00
leds
lguest
macintosh	rackmeter section fixes	2008-11-30 10:03:37 -08:00
mca
md	block: fix setting of max_segment_size and seg_boundary mask	2008-12-03 12:55:55 +01:00
media	dvb: Kill directly reference of netdev->priv	2008-12-03 21:13:13 -08:00
memstick
message	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2008-12-15 20:03:50 -08:00
mfd
misc	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2008-12-15 20:03:50 -08:00
mmc
mtd	Merge git://git.infradead.org/mtd-2.6	2008-12-09 08:28:36 -08:00
net	enc28j60: reduce the number of spi transfers in enc28j60_set_bank()	2008-12-18 22:27:39 -08:00
nubus
of
oprofile
parisc
parport	parport_serial: fix array overflow	2008-12-01 19:55:24 -08:00
pci	PCIe: ASPM: Break out of endless loop waiting for PCI config bits to switch	2008-12-09 14:59:24 -08:00
pcmcia	pcmcia: blackfin: fix bug - add missing ; to MODULE macro	2008-12-15 16:27:06 -08:00
pnp
power
ps3
rapidio	rapidio section noise	2008-11-30 10:03:37 -08:00
regulator
rtc	rtc twl4030: rename ioctl function when RTC_INTF_DEV=n	2008-12-10 08:01:53 -08:00
s390	s390_net: Kill directly reference of netdev->priv	2008-12-06 23:57:49 -08:00
sbus	Revert "of_platform_driver noise on sparce"	2008-12-01 07:55:14 -08:00
scsi	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2008-12-15 20:03:50 -08:00
serial	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6	2008-12-10 10:04:25 -08:00
sh
sn
spi	spi: fix spi_s3c24xx_gpio num_chipselect	2008-12-01 19:55:24 -08:00
ssb
staging	staging-winbond: Kill directly reference of netdev->priv	2008-12-08 01:13:25 -08:00
tc
telephony
thermal
uio
usb	Phonet: USB CDC Phonet function for gadget framework	2008-12-17 15:49:09 -08:00
uwb
video	Revert "radeonfb: accelerate imageblit and other improvements"	2008-12-10 16:53:32 -08:00
virtio
w1	W1_MASTER_DS1WM should depend on HAVE_CLK	2008-11-30 10:03:36 -08:00
watchdog	iTCO_wdt: fix typo when setting TCO_EN bit	2008-12-03 16:20:19 -08:00
xen
zorro
Kconfig
Makefile