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Mark McLoughlin 9fa29b9df3 virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC) 
Add a new feature flag for indirect ring entries. These are ring
entries which point to a table of buffer descriptors.

The idea here is to increase the ring capacity by allowing a larger
effective ring size whereby the ring size dictates the number of
requests that may be outstanding, rather than the size of those
requests.

This should be most effective in the case of block I/O where we can
potentially benefit by concurrently dispatching a large number of
large requests. Even in the simple case of single segment block
requests, this results in a threefold increase in ring capacity.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-12 22:16:39 +09:30
..
accessibility
acpi Merge branch 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 15:25:41 -07:00
amba
ata Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2009-06-11 11:23:17 -07:00
atm
auxdisplay
base Driver Core: do not oops when driver_unregister() is called for unregistered drivers 2009-05-28 14:24:07 -07:00
block virtio: find_vqs/del_vqs virtio operations 2009-06-12 22:16:36 +09:30
bluetooth tty: fix bluetooth scribbling on low latency flags 2009-06-11 08:51:05 -07:00
cdrom block: Use accessor functions for queue limits 2009-05-22 23:22:54 +02:00
char virtio: find_vqs/del_vqs virtio operations 2009-06-12 22:16:36 +09:30
clocksource clocksource: sh_mtu2/cmt_register() should be static. 2009-05-03 18:05:42 +09:00
connector
cpufreq cpumask: alloc zeroed cpumask for static cpumask_var_ts 2009-06-09 22:30:27 +09:30
cpuidle
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2009-05-17 15:48:05 -07:00
dca
dio
dma Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-05-30 07:57:44 -07:00
edac EDAC: do not enable modules by default 2009-06-10 12:19:41 +02:00
eisa
firewire
firmware [libata] ahci: Restore SB600 SATA controller 64 bit DMA 2009-06-10 11:05:00 -04:00
gpio
gpu Revert "drm: don't associate _DRM_DRIVER maps with a master" 2009-06-05 10:21:52 -07:00
hid HID: add NOGET quirk for devices from CH Products 2009-05-11 17:09:21 +02:00
hwmon hwmon: (lm78) Add missing __devexit_p() 2009-06-01 13:46:49 +02:00
i2c Merge branch 'sh/clkfwk' 2009-05-26 23:50:40 +09:00
ide Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block 2009-06-11 11:10:35 -07:00
idle i7300_idle: allow testing on i5000-series hardware w/o re-compile 2009-05-28 20:52:40 -04:00
ieee1394 fs: Remove i_cindex from struct inode 2009-06-11 21:36:09 -04:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2009-05-13 16:31:12 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-05-29 08:48:25 -07:00
isdn gigaset: beyond ARRAY_SIZE of iwb->data 2009-05-21 15:04:15 -07:00
leds
lguest virtio: find_vqs/del_vqs virtio operations 2009-06-12 22:16:36 +09:30
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2009-04-24 08:16:05 -07:00
mca
md Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block 2009-06-11 11:10:35 -07:00
media ivtv: Fix PCI DMA direction 2009-06-05 08:05:23 -07:00
memstick block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
message block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
mfd mfd: pcf50633: fix unsafe disable_irq() 2009-05-19 22:22:28 +02:00
misc [SCSI] ses: fix problems caused by empty SES provided name 2009-05-15 12:20:57 -04:00
mmc Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block 2009-06-11 11:10:35 -07:00
mtd Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block 2009-06-11 11:10:35 -07:00
net virtio: find_vqs/del_vqs virtio operations 2009-06-12 22:16:36 +09:30
nubus
of
oprofile oprofile: fix cpu buffer size 2009-05-07 17:28:59 +02:00
parisc irq: change ->set_affinity() to return status 2009-04-28 12:21:16 +02:00
parport parport_pc: clean up the modified while loops using for 2009-06-11 08:51:03 -07:00
pci Merge branch 'irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 15:25:41 -07:00
pcmcia [ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config 2009-04-23 23:25:40 +01:00
platform eeepc-laptop: unregister_rfkill_notifier on failure 2009-05-14 11:28:27 -04:00
pnp Merge branch 'linus' into irq/numa 2009-06-01 21:06:21 +02:00
power
ps3
rapidio
regulator regulator: da903x: add missing __devexit_p() 2009-05-18 11:21:10 +01:00
rtc Merge branches 'sh/stable-updates' and 'sh/sparseirq' 2009-05-22 13:29:37 +09:00
s390 virtio: find_vqs/del_vqs virtio operations 2009-06-12 22:16:36 +09:30
sbus block: implement and enforce request peek/start/fetch 2009-05-11 09:52:18 +02:00
scsi Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block 2009-06-11 11:10:35 -07:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2009-06-11 10:08:33 -07:00
sh sh: Tie sparseirq in to Kconfig. 2009-06-11 10:33:09 +03:00
sn
spi pxa2xx_spi: prevent panic case setup() fails 2009-05-12 14:11:34 -07:00
ssb SSB: BCM47xx: Export ssb_watchdog_timer_set 2009-06-08 16:57:50 +01:00
staging Staging: comedi: David doesn't want to get comedi patches 2009-05-08 19:39:28 -07:00
tc
telephony
thermal thermal: fix off-by-1 error in trip point trigger condition 2009-05-14 13:40:53 -04:00
uio UIO: fix specific device driver missing statement for depmod 2009-04-16 16:17:11 -07:00
usb Push BKL down into ->remount_fs() 2009-06-11 21:36:11 -04:00
uwb
video Merge branch 'topic/slab/earlyboot' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 2009-06-11 12:25:06 -07:00
virtio virtio: indirect ring entries (VIRTIO_RING_F_INDIRECT_DESC) 2009-06-12 22:16:39 +09:30
w1
watchdog [ARM] 5460/1: Orion: reduce namespace pollution 2009-04-23 23:25:41 +01:00
xen Merge branch 'x86-xen-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 16:16:27 -07:00
zorro
Kconfig
Makefile V4L/DVB (11561a): move media after i2c 2009-04-29 15:41:13 -03:00