linux-stable/Documentation
Keith Busch 88da5d46b6 PCI: Add 'reset_subordinate' to reset hierarchy below bridge
[ Upstream commit 2fa046449a ]

The "bus" and "cxl_bus" reset methods reset a device by asserting Secondary
Bus Reset on the bridge leading to the device.  These only work if the
device is the only device below the bridge.

Add a sysfs 'reset_subordinate' attribute on bridges that can assert
Secondary Bus Reset regardless of how many devices are below the bridge.

This resets all the devices below a bridge in a single command, including
the locking and config space save/restore that reset methods normally do.

This may be the only way to reset devices that don't support other reset
methods (ACPI, FLR, PM reset, etc).

Link: https://lore.kernel.org/r/20241025222755.3756162-1-kbusch@meta.com
Signed-off-by: Keith Busch <kbusch@kernel.org>
[bhelgaas: commit log, add capable(CAP_SYS_ADMIN) check]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Amey Narkhede <ameynarkhede03@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-14 19:44:54 +01:00
..
ABI PCI: Add 'reset_subordinate' to reset hierarchy below bridge 2024-12-14 19:44:54 +01:00
accounting psi: Fix uaf issue when psi trigger is destroyed while being polled 2022-02-05 12:35:36 +01:00
admin-guide proc: add config & param to block forcing mem writes 2024-11-08 16:20:38 +01:00
arm ARM: 9012/1: move device tree mapping out of linear region 2021-05-19 10:08:32 +02:00
arm64 arm64: errata: Expand speculative SSBS workaround once more 2024-11-08 16:20:42 +01:00
block docs: block: null_blk: enhance document style 2019-09-11 16:04:22 -06:00
bpf bpf/flow_dissector: document flags 2019-07-25 18:00:41 -07:00
cdrom docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
core-api XArray: add xas_split 2021-06-10 13:37:14 +02:00
cpu-freq Documentation: cpufreq: Update policy notifier documentation 2019-09-02 22:44:05 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-09-18 12:11:14 -07:00
dev-tools docs/scripts/gdb: add necessary make scripts_gdb step 2023-03-11 16:43:57 +01:00
devicetree dt-bindings: clock: axi-clkgen: include AXI clk 2024-12-14 19:44:30 +01:00
doc-guide docs: remove extra conf.py files 2019-07-17 06:57:52 -03:00
driver-api spi: Update reference to struct spi_controller 2023-01-18 11:41:01 +01:00
EDID docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
fault-injection debugfs: fix error when writing negative value to atomic_t debugfs file 2023-01-18 11:40:56 +01:00
fb fbdev: fix numbering of fbcon options 2020-02-24 08:36:42 +01:00
features It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
filesystems rename(): fix the locking of subdirectories 2024-02-23 08:24:49 +01:00
firmware_class
firmware-guide Documentation: ACPI: EINJ: Fix obsolete example 2022-08-25 11:18:21 +02:00
fpga Documentation: fpga: dfl: add descriptions for virtualization and new interfaces. 2019-09-03 19:35:42 -07:00
gpu Merge drm/drm-next into drm-intel-next-queued 2019-08-22 00:10:36 -07:00
hid docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
hwmon Revert "hwmon: Make chip parameter for with_info API mandatory" 2022-06-25 12:44:36 +02:00
i2c docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
ia64 docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
ide docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
iio docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
infiniband Documentation/infiniband: update name of some functions 2019-09-13 16:55:55 -03:00
input Input: iforce - add support for Boeder Force Feedback Wheel 2022-09-20 12:27:59 +02:00
ioctl Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
isdn docs: isdn: convert to ReST and add to kAPI bookset 2019-07-31 13:30:25 -06:00
kbuild kbuild: support LLVM=1 to switch the default tools to Clang/LLVM 2020-08-26 10:40:47 +02:00
kernel-hacking docs: Add documentation for Symbol Namespaces 2019-09-10 10:30:49 +02:00
leds leds: core: Add support for composing LED class device names 2019-07-25 20:07:52 +02:00
livepatch docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
locking doc🔒 remove reference to clever use of read-write lock 2019-09-14 01:53:27 -06:00
m68k docs: README.buddha: convert to ReST and add to m68k book 2019-07-31 13:30:10 -06:00
maintainer docs: Fix typo on pull requests guide 2019-08-12 15:14:14 -06:00
media media: rename VFL_TYPE_GRABBER to _VIDEO 2024-03-26 18:22:22 -04:00
mic docs: driver-api: add remaining converted dirs to it 2019-07-15 11:03:03 -03:00
mips Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
misc-devices Docs: misc: xilinx_sdfec: Add documentation 2019-08-15 17:54:38 +02:00
netlabel docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
networking xsk: Honor SO_BINDTODEVICE on bind 2023-07-27 08:37:23 +02:00
nios2 docs: nios2: add it to the main Documentation body 2019-07-31 13:31:51 -06:00
openrisc docs: openrisc: convert to ReST and add to documentation body 2019-07-31 13:30:20 -06:00
parisc docs: parisc: convert to ReST and add to documentation body 2019-07-31 13:30:15 -06:00
PCI Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-08-27 14:23:31 -07:00
pcmcia docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
power PM: runtime: Add pm_runtime_get_if_active() 2023-08-30 16:27:12 +02:00
powerpc docs: powerpc: Add missing documentation reference 2019-09-17 23:59:34 +10:00
process overflow: Implement size_t saturating arithmetic helpers 2024-09-04 13:14:51 +02:00
RCU Merge branches 'consolidate.2019.08.01b', 'fixes.2019.08.12a', 'lists.2019.08.13a' and 'torture.2019.08.01b' into HEAD 2019-08-13 14:30:30 -07:00
riscv It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
s390 Documentation/s390: remove outdated debugging390 documentation 2019-08-21 12:41:43 +02:00
scheduler sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices 2019-08-08 09:09:30 +02:00
scsi scsi: smartpqi: Update attribute name to driver_version 2020-01-17 19:48:27 +01:00
security Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2019-09-27 19:37:27 -07:00
sh docs: remove extra conf.py files 2019-07-17 06:57:52 -03:00
sound ASoC: doc: Fix undefined SND_SOC_DAPM_NOPM argument 2024-02-23 08:25:00 +01:00
sparc docs: add arch doc directories to the index 2019-07-15 11:03:01 -03:00
sphinx docs: kernel_include.py: Cope with docutils 0.21 2024-05-25 16:17:18 +02:00
sphinx-static
spi spi: docs: convert to ReST and add it to the kABI bookset 2019-07-31 14:13:13 -06:00
target tweewide: Fix most Shebang lines 2021-05-22 11:38:30 +02:00
timers docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
trace tracing/histogram: Update document for KEYS_MAX size 2022-11-10 17:57:55 +01:00
translations media: rename VFL_TYPE_GRABBER to _VIDEO 2024-03-26 18:22:22 -04:00
usb USB: rio500: Remove Rio 500 kernel driver 2019-10-04 10:53:36 +02:00
userspace-api Documentation: seccomp: Fix user notification documentation 2021-06-03 08:59:03 +02:00
virt KVM: s390: disable migration mode when dirty tracking is disabled 2023-03-11 16:44:01 +01:00
virtual cpuidle: add haltpoll governor 2019-07-30 17:27:37 +02:00
vm arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL 2022-05-15 19:54:46 +02:00
w1 docs: w1: convert to ReST and add to the kAPI group of docs 2019-07-31 14:16:17 -06:00
watchdog linux-watchdog 5.4-rc1 tag 2019-09-27 11:17:38 -07:00
x86 x86/CPU/AMD: Save AMD NodeId as cpu_die_id 2020-12-30 11:51:47 +01:00
xtensa xtensa: fix TLBTEMP area placement 2020-11-24 13:29:22 +01:00
.gitignore
asm-annotations.rst linkage: Introduce new macros for assembler symbols 2020-11-10 12:37:24 +01:00
atomic_bitops.txt locking/atomic: Make test_and_*_bit() ordered on failure 2022-08-25 11:18:31 +02:00
atomic_t.txt Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 16:12:03 -07:00
bus-virt-phys-mapping.txt
Changes
CodingStyle
conf.py docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0 2022-06-14 18:11:49 +02:00
COPYING-logo docs: logo.txt: rename it to COPYING-logo 2019-07-15 09:20:27 -03:00
crc32.txt
debugging-modules.txt
debugging-via-ohci1394.txt
digsig.txt
DMA-API-HOWTO.txt docs: DMA-API-HOWTO.txt: fix an unmarked code block 2019-07-15 09:20:24 -03:00
DMA-API.txt dma-mapping: remove dma_release_declared_memory 2019-09-04 11:13:19 +02:00
DMA-attributes.txt Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE"" 2022-05-25 09:14:38 +02:00
DMA-ISA-LPC.txt
docutils.conf doc-rst: Add missing newline at end of file 2019-06-20 14:16:56 -06:00
dontdiff kbuild: create *.mod with full directory path and remove MODVERDIR 2019-07-18 02:19:31 +09:00
futex-requeue-pi.txt
hwspinlock.txt hwspinlock: add the 'in_atomic' API 2019-06-29 21:08:14 -07:00
index.rst linkage: Introduce new macros for assembler symbols 2020-11-10 12:37:24 +01:00
io_ordering.txt
io-mapping.txt
IPMI.txt ipmi: docs: don't advertise deprecated sysfs entries 2024-11-08 16:20:29 +01:00
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
Kconfig docs: Kbuild/Makefile: allow check for missing docs at build time 2019-06-07 11:33:16 -06:00
kobject.txt
kprobes.txt Merge branch 'parisc-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2019-05-07 19:34:17 -07:00
kref.txt
logo.gif
lzo.txt lib/lzo: fix ambiguous encoding bug in lzo-rle 2020-06-17 16:40:28 +02:00
mailbox.txt
Makefile docs: Kbuild/Makefile: allow check for missing docs at build time 2019-06-07 11:33:16 -06:00
memory-barriers.txt docs: fix broken doc references due to renames 2019-07-17 06:57:51 -03:00
nommu-mmap.txt
padata.txt padata: allocate workqueue internally 2019-09-13 21:15:39 +10:00
percpu-rw-semaphore.txt
pi-futex.txt docs: locking: convert docs to ReST and rename to *.rst 2019-07-15 08:53:27 -03:00
preempt-locking.txt x86/fpu: Remove fpu__restore() 2019-04-09 19:27:42 +02:00
rbtree.txt docs: rbtree.txt: fix Sphinx build warnings 2019-07-15 09:20:24 -03:00
remoteproc.txt remoteproc: add vendor resources handling 2019-06-29 12:02:17 -07:00
robust-futex-ABI.txt
robust-futexes.txt futex: Update comments and docs about return values of arch futex code 2019-04-26 13:57:55 +01:00
rpmsg.txt
speculation.txt docs: speculation.txt: mark example blocks as such 2019-04-11 12:37:03 -06:00
static-keys.txt
SubmittingPatches
tee.txt Documentation: tee: Grammar s/the its/its/ 2019-06-07 11:23:38 -06:00
this_cpu_ops.txt
unaligned-memory-access.txt docs: unaligned-memory-access.txt: use a lowercase title 2019-04-11 12:37:03 -06:00
xz.txt