kernel-ark/Documentation
Andrew Patterson 43c1640884 PCI: Add support for turning PCIe ECRC on or off
Adds support for PCI Express transaction layer end-to-end CRC checking
(ECRC).  This patch will enable/disable ECRC checking by setting/clearing
the ECRC Check Enable and/or ECRC Generation Enable bits for devices that
support ECRC.

The ECRC setting is controlled by the "pci=ecrc=<policy>" command-line
option. If this option is not set or is set to 'bios", the enable and
generation bits are left in whatever state that firmware/BIOS set them to.
The "off" setting turns them off, and the "on" option turns them on (if the
device supports it).

Turning ECRC on or off can be a data integrity versus performance
tradeoff.  In theory, turning it on will catch more data errors, turning
it off means possibly better performance since CRC does not need to be
calculated by the PCIe hardware and packet sizes are reduced.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-11 12:04:21 -07:00
..
ABI slub: add Documentation/ABI/testing/sysfs-kernel-slab 2009-04-28 14:30:35 +03:00
accounting Documentation/accounting/getdelays.c: fix endless loop 2009-01-15 16:39:37 -08:00
acpi
aoe
arm Merge branch 'next-s3c-pm' of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2009-03-26 22:44:43 +00:00
auxdisplay
blackfin
block block: update biodoc.txt on plugging 2009-04-15 08:28:11 +02:00
blockdev mflash: initial support 2009-04-07 08:12:38 +02:00
cdrom
cgroups memcg: fix documentation 2009-04-13 15:04:33 -07:00
connector Documentation/connector/cn_test.c: don't use gfp_any() 2009-02-12 16:47:01 -08:00
console
cpu-freq [CPUFREQ] ondemand/conservative: sanitize sampling_rate restrictions 2009-02-24 22:47:31 -05:00
cpuidle
cris
crypto
development-process Fix a typo in the development process document. 2009-01-08 16:32:13 -07:00
device-mapper
DocBook kgdb: gdb documentation fix 2009-05-15 07:56:25 -05:00
driver-model Driver Core: early platform driver 2009-04-16 16:17:10 -07:00
dvb V4L/DVB (11138): get_dvb_firmware: add support for downloading the cx2584x firmware for pvrusb2 2009-03-30 12:43:31 -03:00
early-userspace
fault-injection
fb uvesafb: documentation update 2009-04-07 08:31:09 -07:00
filesystems hugh: update email address 2009-05-21 13:14:32 -07:00
firmware_class
frv
hwmon hwmon: Update documentation on fan_max 2009-06-01 13:46:50 +02:00
i2c Move the pcf8591 driver to hwmon 2009-03-30 21:46:43 +02:00
i2o
ia64 trivial: Fix misspelling of firmware 2009-03-30 15:21:59 +02:00
ide
infiniband IPoIB: Document newish features 2009-04-08 13:52:01 -07:00
input Input: multitouch - augment event semantics documentation 2009-05-23 09:53:26 -07:00
ioctl V4L/DVB (10870a): remove all references for video_decoder.h 2009-03-30 12:43:15 -03:00
isdn Add reference to CAPI 2.0 standard 2009-04-27 05:37:39 -07:00
ja_JP Sync patch for jp_JP/stable_kernel_rules.txt 2009-01-28 15:55:48 -08:00
kbuild kbuild: introduce subdir-ccflags-y 2009-04-19 11:12:12 +02:00
kdump
ko_KR
laptops thinkpad-acpi: bump up version to 0.23 2009-04-18 01:19:54 -04:00
lguest lguest: document 32-bit and PAE requirements 2009-04-19 23:14:02 +09:30
m68k
make
mips ide: remove unused CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ 2009-01-14 19:19:03 +01:00
misc-devices drivers/misc/isl29003.c: driver for the ISL29003 ambient light sensor 2009-04-01 08:59:18 -07:00
mn10300
mtd
namespaces
netlabel
networking Doc: fixed descriptions on /proc/sys/net/core/* and /proc/sys/net/unix/* 2009-05-17 21:19:31 -07:00
parisc
PCI PCI MSI: Add example request loop to MSI-HOWTO.txt 2009-03-20 11:35:04 -07:00
pcmcia
power
powerpc Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 into merge 2009-04-22 13:02:09 +10:00
prctl
RCU Doc: Fix spelling in RCU/rculist_nulls.txt. 2009-04-02 01:33:51 -07:00
s390
scheduler trivial: fix where cgroup documentation is not correctly referred to 2009-03-30 15:22:02 +02:00
scsi [SCSI] aacraid driver update 2009-04-03 09:23:11 -05:00
serial
sh
sound Merge branch 'fix/pcm-jiffies-check' into for-linus 2009-05-27 16:51:27 +02:00
sparc
spi spi: documentation: emphasise spi_master.setup() semantics 2009-04-21 13:41:50 -07:00
sysctl Revert "mm: add /proc controls for pdflush threads" 2009-05-15 11:32:24 +02:00
telephony
thermal
timers
trace tracing: consolidate documents 2009-04-09 07:28:10 +02:00
uml
usb USB: usbmon: Add binary API v1 2009-03-24 16:20:36 -07:00
video4linux V4L/DVB (11373): v4l2-common: add explicit v4l2_device pointer as first arg to new_(probed)_subdev 2009-04-06 21:44:24 -03:00
vm mm: add documentation describing what tsk->active_mm means vs tsk->mm 2009-04-13 15:04:32 -07:00
w1 w1: send status messages after command processing 2009-01-08 08:31:14 -08:00
watchdog
wimax i2400m: documentation and instructions for usage 2009-01-07 10:00:18 -08:00
x86 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-04-03 15:24:35 -07:00
zh_CN
00-INDEX trivial: fix where cgroup documentation is not correctly referred to 2009-03-30 15:22:02 +02:00
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
BUG-HUNTING
c2port.txt
cachetlb.txt
Changes Documentation/Changes: add required versions for new filesystems 2009-01-29 18:19:30 -08:00
CodingStyle fix emacs indenting howto filename expansion 2009-01-29 18:19:29 -08:00
cpu-hotplug.txt
cpu-load.txt
cputopology.txt cpumask: Use topology_core_cpumask()/topology_thread_cpumask() 2009-01-11 19:12:49 +01:00
credentials.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt lanana: assign a device name and numbering for MAX3100 2009-04-07 08:44:05 -07:00
DMA-API.txt dma-debug: Documentation update 2009-03-17 12:56:47 +01:00
DMA-attributes.txt
DMA-ISA-LPC.txt
DMA-mapping.txt dma-mapping: update the old macro DMA_nBIT_MASK related documentations 2009-04-07 08:31:12 -07:00
dmaengine.txt
dontdiff dontdiff: Fix asm exclude 2009-03-26 15:45:43 -07:00
dynamic-debug-howto.txt Dynamic debug: allow simple quoting of words 2009-03-24 16:38:27 -07:00
edac.txt
eisa.txt
email-clients.txt
exception.txt
feature-removal-schedule.txt i2c-voodoo3: Deprecate in favor of tdfxfb 2009-04-13 17:02:13 +02:00
gpio.txt gpio: gpio_{request,free}() now required (feature removal) 2009-04-02 19:04:51 -07:00
highuid.txt
HOWTO
hw_random.txt
ics932s401
initrd.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
IO-mapping.txt Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt kernel-doc: restrict syntax for private: and public: 2009-05-02 15:36:10 -07:00
kernel-docs.txt
kernel-parameters.txt PCI: Add support for turning PCIe ECRC on or off 2009-06-11 12:04:21 -07:00
keys-request-key.txt
keys.txt
kobject.txt
kprobes.txt kprobes: support kretprobe and jprobe per-probe disabling 2009-04-07 08:31:08 -07:00
kref.txt
ldm.txt
leds-class.txt
local_ops.txt
lockdep-design.txt locking: Documentation: lockdep-design.txt, fix note of state bits 2009-04-26 18:21:24 +02:00
lockstat.txt
logo.gif Revert "linux.conf.au 2009: Tuz" 2009-04-27 12:00:27 -07:00
logo.txt Revert "linux.conf.au 2009: Tuz" 2009-04-27 12:00:27 -07:00
magic-number.txt
Makefile
ManagementStyle
markers.txt
mca.txt
md.txt Documentation/md.txt update 2009-03-31 15:18:37 +11:00
memory-barriers.txt
memory-hotplug.txt
memory.txt
mono.txt
mutex-design.txt
nmi_watchdog.txt
nommu-mmap.txt NOMMU: Make mmap allocation page trimming behaviour configurable. 2009-01-08 12:04:47 +00:00
numastat.txt
oops-tracing.txt
parport-lowlevel.txt
parport.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
rbtree.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
SELinux.txt
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
slow-work.txt Document the slow work thread pool 2009-04-03 16:42:35 +01:00
SM501.txt
Smack.txt smack: Add a new '-CIPSO' option to the network address label configuration 2009-03-28 15:01:37 +11:00
sparse.txt Documentation: explain the difference between __bitwise and __bitwise__ 2009-04-11 08:18:11 +02:00
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt Doc/sysfs-rules: Swap the order of the words so the sentence makes more sense 2009-05-08 19:22:20 -07:00
sysrq.txt Merge branch 'tracing/core-v2' into tracing-for-linus 2009-04-02 00:49:02 +02:00
tomoyo.txt tomoyo: add Documentation/tomoyo.txt 2009-04-14 09:14:58 +10:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
video-output.txt
volatile-considered-harmful.txt
voyager.txt
zorro.txt