Johannes Berg ff0d91c3ee iwlwifi: reduce memory allocation ... Currently, the driver allocates up to 19 skb pointers for each TFD, of which we have 256 per queue. This means that for each TX queue, we allocate 19k/38k (an order 4 or 5 allocation on 32/64 bit respectively) just for each queue's "txb" array, which contains only the SKB pointers. However, due to the way we use these pointers only the first one can ever be assigned. When the driver was initially written, the idea was that it could be passed multiple SKBs for each TFD and attach all those to implement gather DMA. However, due to constraints in the userspace API and lack of TCP/IP level checksumming in the device, this is in fact not possible. And even if it were, the SKBs would be chained, and we wouldn't need to keep pointers to each anyway. Change this to only keep track of one SKB per TFD, and thereby reduce memory consumption to just one pointer per TFD, which is an order 0 allocation per transmit queue. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>		2010-06-05 23:18:33 -07:00
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accessibility
acpi	Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2010-05-20 09:45:38 -07:00
amba
ata	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev	2010-05-20 09:27:37 -07:00
atm	atm: select FW_LOADER in Kconfig for solos-pci	2010-05-17 17:44:36 -07:00
auxdisplay
base	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6	2010-05-20 09:03:55 -07:00
block	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-05-20 21:04:44 -07:00
cdrom
char	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2010-05-20 10:33:06 -07:00
clocksource	Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-19 17:10:57 -07:00
connector
cpufreq	Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-18 08:49:13 -07:00
cpuidle
crypto
dca
dio
dma	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2010-05-19 11:36:03 -07:00
edac
eisa
firewire	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
firmware
gpio	Merge branch 'topic/asoc' into for-linus	2010-05-20 12:00:43 +02:00
gpu	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
hid	USB: rename usb_buffer_alloc() and usb_buffer_free() users	2010-05-20 13:21:38 -07:00
hwmon	Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging	2010-05-11 17:38:04 -07:00
i2c	Merge branch 'for-linus/i2c-2635' of git://git.fluff.org/bjdooks/linux	2010-05-20 09:41:17 -07:00
ide
idle
ieee1394
ieee802154
infiniband	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-05-20 21:04:44 -07:00
input	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2010-05-20 21:26:12 -07:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-05-20 21:04:44 -07:00
leds
lguest
macintosh
mca
md
media	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2010-05-20 21:26:12 -07:00
memstick
message
mfd	Merge branch 'topic/asoc' into for-linus	2010-05-20 12:00:43 +02:00
misc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
mmc	Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm	2010-05-19 11:37:22 -07:00
mtd
net	iwlwifi: reduce memory allocation	2010-06-05 23:18:33 -07:00
nubus
of
oprofile
parisc
parport
pci	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
pcmcia	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2010-05-20 09:09:46 -07:00
platform
pnp
power
pps
ps3
rapidio
regulator	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
rtc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-05-20 21:04:44 -07:00
sbus
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2010-05-20 21:04:44 -07:00
serial	Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6	2010-05-20 09:09:46 -07:00
sfi
sh	sh: simplify WARN usage in SH clock driver	2010-05-13 17:43:11 +09:00
sn
spi	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
ssb	ssb: remove the ssb DMA API	2010-06-04 16:00:42 -04:00
staging	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2010-05-20 21:26:12 -07:00
tc
telephony
thermal
uio
usb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6	2010-05-20 21:26:12 -07:00
uwb
vhost	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2010-05-16 22:26:58 -07:00
video	Merge branch 'viafb-next' of git://git.lwn.net/linux-2.6	2010-05-20 13:34:17 -07:00
virtio
vlynq	vlynq: make whole Kconfig-menu dependant on architecture	2010-05-14 16:59:54 +02:00
w1
watchdog	USB: rename usb_buffer_alloc() and usb_buffer_free() users	2010-05-20 13:21:38 -07:00
xen
zorro	m68k: amiga - Zorro host bridge platform device conversion	2010-05-17 21:37:42 +02:00
Kconfig
Makefile