linux_dsm_epyc7002/drivers
Sheng Yang 8dd7f8036c PCI: add support for function level reset
Sometimes, it's necessary to enable software's ability to quiesce and
reset endpoint hardware with function-level granularity, so provide
support for it.

The patch implement Function Level Reset(FLR) feature following PCI-e
spec. And this is the first step. We would add more generic method, like
D0/D3, to allow more devices support this function.

The patch contains two functions. pcie_reset_function() is the new
driver API, and, contains some action to quiesce a device.  The other
function is a helper:  pcie_execute_reset_function() just executes the
reset for a particular device function.

Current the usage model is in KVM. Function reset is necessary for
assigning device to a guest, or moving it between partitions.

For Function Level Reset(FLR), please refer to PCI Express spec chapter
6.6.2.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-22 16:42:35 -07:00
..
accessibility
acpi x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
amba
ata
atm
auxdisplay
base memory_probe: fix wrong sysfs file attribute 2008-10-20 08:52:32 -07:00
block x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
bluetooth
cdrom
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
clocksource Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus 2008-10-20 13:14:06 +02:00
connector
cpufreq
cpuidle
crypto
dca
dio
dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2008-10-20 12:54:30 -07:00
edac edac cell: fix incorrect edac_mode 2008-10-20 08:52:40 -07:00
eisa
firewire
firmware x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
gpio Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
gpu Export tiny shmem_file_setup for DRM-GEM 2008-10-20 16:17:42 -07:00
hid
hwmon hwmon: applesmc: lighter wait mechanism, drastic improvement 2008-10-20 08:52:35 -07:00
i2c PCI: Check dynids driver_data value for validity 2008-10-20 10:48:35 -07:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2008-10-20 13:12:39 -07:00
ieee1394
infiniband x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
input Merge branch 'for-next' of git://git.o-hand.com/linux-mfd 2008-10-20 09:22:47 -07:00
isdn
leds Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2008-10-20 13:12:39 -07:00
lguest
macintosh
mca
md
media byteorder: remove direct includes of linux/byteorder/swab[b].h 2008-10-20 08:52:40 -07:00
memstick x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
message
mfd Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
misc HP-WMI: additional keycode (or typo) 2008-10-20 08:52:34 -07:00
mmc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc 2008-10-20 10:17:42 -07:00
mtd Merge git://git.infradead.org/mtd-2.6 2008-10-20 09:03:12 -07:00
net misc: replace remaining __FUNCTION__ with __func__ 2008-10-20 16:17:42 -07:00
nubus
of
oprofile
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
parport
pci PCI: add support for function level reset 2008-10-22 16:42:35 -07:00
pcmcia Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
pnp
power Merge git://git.infradead.org/battery-2.6 2008-10-20 09:44:30 -07:00
ps3
rapidio
regulator
rtc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
s390
sbus
scsi Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-10-20 13:40:47 -07:00
serial Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
sh
sn
spi
ssb
staging Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 2008-10-20 09:09:56 -07:00
tc
telephony phonedev: remove BKL 2008-10-20 08:52:36 -07:00
thermal
uio Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-10-20 13:42:14 -07:00
usb USB: Fix unused label warnings in drivers/usb/host/ehci-hcd.c 2008-10-20 14:23:29 -07:00
video Remove empty imacfb.c file 2008-10-20 11:32:09 -07:00
virtio
w1 x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
watchdog
xen
zorro
Kconfig
Makefile