Commit graph

69,574 commits

Author SHA1 Message Date
Jérémie Dautheribes
95f4fa1f45 dt-bindings: net: dp83822: support configuring RMII master/slave mode
Add property ti,rmii-mode to support selecting the RMII operation mode
between:
	- master mode (PHY operates from a 25MHz clock reference)
	- slave mode (PHY operates from a 50MHz clock reference)

If not set, the operation mode is configured by hardware straps.

Signed-off-by: Jérémie Dautheribes <jeremie.dautheribes@bootlin.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-26 11:38:44 +00:00
Jakub Kicinski
fecc51559a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

net/ipv4/udp.c
  f796feabb9 ("udp: add local "peek offset enabled" flag")
  56667da739 ("net: implement lockless setsockopt(SO_PEEK_OFF)")

Adjacent changes:

net/unix/garbage.c
  aa82ac51d6 ("af_unix: Drop oob_skb ref before purging queue in GC.")
  11498715f2 ("af_unix: Remove io_uring code for GC.")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-22 15:29:26 -08:00
Linus Torvalds
6714ebb922 Including fixes from bpf and netfilter.
Current release - regressions:
 
   - af_unix: fix another unix GC hangup
 
 Previous releases - regressions:
 
   - core: fix a possible AF_UNIX deadlock
 
   - bpf: fix NULL pointer dereference in sk_psock_verdict_data_ready()
 
   - netfilter: nft_flow_offload: release dst in case direct xmit path is used
 
   - bridge: switchdev: ensure MDB events are delivered exactly once
 
   - l2tp: pass correct message length to ip6_append_data
 
   - dccp/tcp: unhash sk from ehash for tb2 alloc failure after check_estalblished()
 
   - tls: fixes for record type handling with PEEK
 
   - devlink: fix possible use-after-free and memory leaks in devlink_init()
 
 Previous releases - always broken:
 
   - bpf: fix an oops when attempting to read the vsyscall
   	 page through bpf_probe_read_kernel
 
   - sched: act_mirred: use the backlog for mirred ingress
 
   - netfilter: nft_flow_offload: fix dst refcount underflow
 
   - ipv6: sr: fix possible use-after-free and null-ptr-deref
 
   - mptcp: fix several data races
 
   - phonet: take correct lock to peek at the RX queue
 
 Misc:
 
   - handful of fixes and reliability improvements for selftests
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.8.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf and netfilter.

  Current release - regressions:

   - af_unix: fix another unix GC hangup

  Previous releases - regressions:

   - core: fix a possible AF_UNIX deadlock

   - bpf: fix NULL pointer dereference in sk_psock_verdict_data_ready()

   - netfilter: nft_flow_offload: release dst in case direct xmit path
     is used

   - bridge: switchdev: ensure MDB events are delivered exactly once

   - l2tp: pass correct message length to ip6_append_data

   - dccp/tcp: unhash sk from ehash for tb2 alloc failure after
     check_estalblished()

   - tls: fixes for record type handling with PEEK

   - devlink: fix possible use-after-free and memory leaks in
     devlink_init()

  Previous releases - always broken:

   - bpf: fix an oops when attempting to read the vsyscall page through
     bpf_probe_read_kernel

   - sched: act_mirred: use the backlog for mirred ingress

   - netfilter: nft_flow_offload: fix dst refcount underflow

   - ipv6: sr: fix possible use-after-free and null-ptr-deref

   - mptcp: fix several data races

   - phonet: take correct lock to peek at the RX queue

  Misc:

   - handful of fixes and reliability improvements for selftests"

* tag 'net-6.8.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits)
  l2tp: pass correct message length to ip6_append_data
  net: phy: realtek: Fix rtl8211f_config_init() for RTL8211F(D)(I)-VD-CG PHY
  selftests: ioam: refactoring to align with the fix
  Fix write to cloned skb in ipv6_hop_ioam()
  phonet/pep: fix racy skb_queue_empty() use
  phonet: take correct lock to peek at the RX queue
  net: sparx5: Add spinlock for frame transmission from CPU
  net/sched: flower: Add lock protection when remove filter handle
  devlink: fix port dump cmd type
  net: stmmac: Fix EST offset for dwmac 5.10
  tools: ynl: don't leak mcast_groups on init error
  tools: ynl: make sure we always pass yarg to mnl_cb_run
  net: mctp: put sock on tag allocation failure
  netfilter: nf_tables: use kzalloc for hook allocation
  netfilter: nf_tables: register hooks last when adding new chain/flowtable
  netfilter: nft_flow_offload: release dst in case direct xmit path is used
  netfilter: nft_flow_offload: reset dst in route object after setting up flow
  netfilter: nf_tables: set dormant flag on hook register failure
  selftests: tls: add test for peeking past a record of a different type
  selftests: tls: add test for merging of same-type control messages
  ...
2024-02-22 09:57:58 -08:00
Samuel Thibault
6d5c36565c PPPoL2TP: Add more code snippets
The existing documentation was not telling that one has to create a PPP
channel and a PPP interface to get PPPoL2TP data offloading working.

Also, tunnel switching was not mentioned, so that people were thinking
it was not supported, while it actually is.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Acked-by: Tom Parkin <tparkin@katalix.com>
Link: https://lore.kernel.org/r/20240217211425.qj576u3jmaa6yidf@begin
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 17:13:21 -08:00
Paolo Abeni
4934446297 linux-can-next-for-6.9-20240220
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Merge tag 'linux-can-next-for-6.9-20240220' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2024-02-20

this is a pull request of 9 patches for net-next/master.

The first patch is by Francesco Dolcini and removes a redundant check
for pm_clock_support from the m_can driver.

Martin Hundebøll contributes 3 patches to the m_can/tcan4x5x driver to
allow resume upon RX of a CAN frame.

3 patches by Srinivas Goud add support for ECC statistics to the
xilinx_can driver.

The last 2 patches are by Oliver Hartkopp and me, target the CAN RAW
protocol and fix an error in the getsockopt() for CAN-XL introduced in
the previous pull request to net-next (linux-can-next-for-6.9-20240213).

linux-can-next-for-6.9-20240220

* tag 'linux-can-next-for-6.9-20240220' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
  can: raw: raw_getsockopt(): reduce scope of err
  can: raw: fix getsockopt() for new CAN_RAW_XL_VCID_OPTS
  can: xilinx_can: Add ethtool stats interface for ECC errors
  can: xilinx_can: Add ECC support
  dt-bindings: can: xilinx_can: Add 'xlnx,has-ecc' optional property
  can: tcan4x5x: support resuming from rx interrupt signal
  can: m_can: allow keeping the transceiver running in suspend
  dt-bindings: can: tcan4x5x: Document the wakeup-source flag
  can: m_can: remove redundant check for pm_clock_support
====================

Link: https://lore.kernel.org/r/20240220085130.2936533-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-20 15:32:45 +01:00
Jakub Kicinski
23f9c2c066 docs: netdev: update the link to the CI repo
Netronome graciously transferred the original NIPA repo
to our new netdev umbrella org. Link to that instead of
my private fork.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240216161945.2208842-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-20 11:52:41 +01:00
Frank Li
5983e5df86 dt-bindings: net: fec: add iommus property
iMX8QM have iommu. Add proerty 'iommus'.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240201-8qm_smmu-v2-2-3d12a80201a3@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-19 11:43:20 -08:00
Linus Torvalds
6c160f16be Kbuild fixes for v6.8 (2nd)
- Reformat nested if-conditionals in Makefiles with 4 spaces
 
  - Fix CONFIG_DEBUG_INFO_BTF builds for big endian
 
  - Fix modpost for module srcversion
 
  - Fix an escape sequence warning in gen_compile_commands.py
 
  - Fix kallsyms to ignore ARMv4 thunk symbols
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Merge tag 'kbuild-fixes-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Reformat nested if-conditionals in Makefiles with 4 spaces

 - Fix CONFIG_DEBUG_INFO_BTF builds for big endian

 - Fix modpost for module srcversion

 - Fix an escape sequence warning in gen_compile_commands.py

 - Fix kallsyms to ignore ARMv4 thunk symbols

* tag 'kbuild-fixes-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kallsyms: ignore ARMv4 thunks along with others
  modpost: trim leading spaces when processing source files list
  gen_compile_commands: fix invalid escape sequence warning
  kbuild: Fix changing ELF file type for output of gen_btf for big endian
  docs: kconfig: Fix grammar and formatting
  kbuild: use 4-space indentation when followed by conditionals
2024-02-18 10:09:25 -08:00
Linus Torvalds
ced5905231 Driver core fixes for 6.8-rc5
Here are some driver core fixes, a kobject fix, and a documentation
 update for 6.8-rc5.  In detail these changes are:
   - devlink fixes for reported issues with 6.8-rc1
   - topology scheduling regression fix that has been reported by many
   - kobject loosening of checks change in -rc1 is now reverted as some
     codepaths seemed to need the checks
   - documentation update for the CVE process.  Has been reviewed by
     many, the last minute change to the document was to bring the .rst
     format back into the the new style rules, the contents did not
     change.
 
 All of these, except for the documentation update, have been in
 linux-next for over a week.  The documentation update has been reviewed
 for weeks by a group of developers, and in public for a week and the
 wording has stabilized for now.  If future changes are needed, we can do
 so before 6.8-final is out (or anytime after that.)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are some driver core fixes, a kobject fix, and a documentation
  update for 6.8-rc5. In detail these changes are:

   - devlink fixes for reported issues with 6.8-rc1

   - topology scheduling regression fix that has been reported by many

   - kobject loosening of checks change in -rc1 is now reverted as some
     codepaths seemed to need the checks

   - documentation update for the CVE process. Has been reviewed by
     many, the last minute change to the document was to bring the .rst
     format back into the the new style rules, the contents did not
     change.

  All of these, except for the documentation update, have been in
  linux-next for over a week. The documentation update has been reviewed
  for weeks by a group of developers, and in public for a week and the
  wording has stabilized for now. If future changes are needed, we can
  do so before 6.8-final is out (or anytime after that)"

* tag 'driver-core-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Documentation: Document the Linux Kernel CVE process
  Revert "kobject: Remove redundant checks for whether ktype is NULL"
  driver core: fw_devlink: Improve logs for cycle detection
  driver core: fw_devlink: Improve detection of overlapping cycles
  driver core: Fix device_link_flag_is_sync_state_only()
  topology: Set capacity_freq_ref in all cases
2024-02-17 08:56:41 -08:00
Linus Torvalds
7efc0eb825 Char/Misc changes for 6.8-rc5
Here is a small set of char/misc and IIO driver fixes for 6.8-rc5
 
 Included in here are:
   - lots of iio driver fixes for reported issues
   - nvmem device naming fixup for reported problem
   - interconnect driver fixes for reported issues
 
 All of these have been in linux-next for a while with no reported the
 issues (the nvmem patch was included in a different branch in linux-next
 before sent to me for inclusion here.)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / miscdriver fixes from Greg KH:
 "Here is a small set of char/misc and IIO driver fixes for 6.8-rc5.

  Included in here are:

   - lots of iio driver fixes for reported issues

   - nvmem device naming fixup for reported problem

   - interconnect driver fixes for reported issues

  All of these have been in linux-next for a while with no reported the
  issues (the nvmem patch was included in a different branch in
  linux-next before sent to me for inclusion here)"

* tag 'char-misc-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  nvmem: include bit index in cell sysfs file name
  iio: adc: ad4130: only set GPIO_CTRL if pin is unused
  iio: adc: ad4130: zero-initialize clock init data
  interconnect: qcom: x1e80100: Add missing ACV enable_mask
  interconnect: qcom: sm8650: Use correct ACV enable_mask
  iio: accel: bma400: Fix a compilation problem
  iio: commom: st_sensors: ensure proper DMA alignment
  iio: hid-sensor-als: Return 0 for HID_USAGE_SENSOR_TIME_TIMESTAMP
  iio: move LIGHT_UVA and LIGHT_UVB to the end of iio_modifier
  staging: iio: ad5933: fix type mismatch regression
  iio: humidity: hdc3020: fix temperature offset
  iio: adc: ad7091r8: Fix error code in ad7091r8_gpio_setup()
  iio: adc: ad_sigma_delta: ensure proper DMA alignment
  iio: imu: adis: ensure proper DMA alignment
  iio: humidity: hdc3020: Add Makefile, Kconfig and MAINTAINERS entry
  iio: imu: bno055: serdev requires REGMAP
  iio: magnetometer: rm3100: add boundary check for the value read from RM3100_REG_TMRC
  iio: pressure: bmp280: Add missing bmp085 to SPI id table
  iio: core: fix memleak in iio_device_register_sysfs
  interconnect: qcom: sm8550: Enable sync_state
  ...
2024-02-17 08:52:38 -08:00
Greg Kroah-Hartman
5928d41155 Documentation: Document the Linux Kernel CVE process
The Linux kernel project now has the ability to assign CVEs to fixed
issues, so document the process and how individual developers can get a
CVE if one is not automatically assigned for their fixes.

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/2024021731-essence-sadness-28fd@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-17 14:46:39 +01:00
Linus Torvalds
3f3f64cb60 arm64 fixes for -rc5
- Fix allocation failure during SVE coredumps
 
 - Fix handling of SVE context on signal delivery
 
 - Enable Neoverse N2 CPU errata workarounds for Microsoft's
   "Azure Cobalt 100" clone
 
 - Work around CMN PMU erratum in AmpereOneX implementation
 
 - Fix typo in CXL PMU event definition
 
 - Fix jump label asm constraints
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "It's a little busier than normal, but it's still not a lot of code and
  things seem fairly quiet in general:

   - Fix allocation failure during SVE coredumps

   - Fix handling of SVE context on signal delivery

   - Enable Neoverse N2 CPU errata workarounds for Microsoft's "Azure
     Cobalt 100" clone

   - Work around CMN PMU erratum in AmpereOneX implementation

   - Fix typo in CXL PMU event definition

   - Fix jump label asm constraints"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/sve: Lower the maximum allocation for the SVE ptrace regset
  arm64: Subscribe Microsoft Azure Cobalt 100 to ARM Neoverse N2 errata
  perf/arm-cmn: Workaround AmpereOneX errata AC04_MESH_1 (incorrect child count)
  arm64: jump_label: use constraints "Si" instead of "i"
  arm64: fix typo in comments
  perf: CXL: fix mismatched cpmu event opcode
  arm64/signal: Don't assume that TIF_SVE means we saved SVE state
2024-02-16 10:28:29 -08:00
Linus Torvalds
0f1dd5e91e sound fixes for 6.8-rc5
A collection of device-specific fixes.  It became a bit bigger
 than wished, but all look reasonably small and safe to apply.
 
 - A few Cirrus Logic CS35L56 and CS42L43 driver fixes
 - ASoC SOF fixes and workarounds
 - Various ASoC Intel fixes
 - Lots of HD-, USB-audio and AMD ACP quirks
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Merge tag 'sound-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of device-specific fixes. It became a bit bigger than
  wished, but all look reasonably small and safe to apply.

   - A few Cirrus Logic CS35L56 and CS42L43 driver fixes

   - ASoC SOF fixes and workarounds

   - Various ASoC Intel fixes

   - Lots of HD-, USB-audio and AMD ACP quirks"

* tag 'sound-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits)
  ALSA: usb-audio: More relaxed check of MIDI jack names
  ALSA: hda/realtek: fix mute/micmute LED For HP mt645
  ALSA: hda/realtek: cs35l41: Fix order and duplicates in quirks table
  ALSA: hda/realtek: cs35l41: Fix device ID / model name
  ALSA: hda/realtek: cs35l41: Add internal speaker support for ASUS UM3402 with missing DSD
  ASoC: cs35l56: Workaround for ACPI with broken spk-id-gpios property
  ALSA: hda: Add Lenovo Legion 7i gen7 sound quirk
  ASoC: SOF: IPC3: fix message bounds on ipc ops
  ASoC: SOF: ipc4-pcm: Workaround for crashed firmware on system suspend
  ASoC: q6dsp: fix event handler prototype
  ASoC: SOF: Intel: pci-lnl: Change the topology path to intel/sof-ipc4-tplg
  ASoC: SOF: Intel: pci-tgl: Change the default paths and firmware names
  ASoC: amd: yc: Fix non-functional mic on Lenovo 82UU
  ASoC: rt5645: Add DMI quirk for inverted jack-detect on MeeGoPad T8
  ASoC: rt5645: Make LattePanda board DMI match more precise
  ASoC: SOF: amd: Fix locking in ACP IRQ handler
  ASoC: rt5645: Fix deadlock in rt5645_jack_detect_work()
  ASoC: Intel: cht_bsw_rt5645: Cleanup codec_name handling
  ASoC: Intel: Boards: Fix NULL pointer deref in BYT/CHT boards
  ASoC: cs35l56: Remove default from IRQ1_CFG register
  ...
2024-02-16 09:02:19 -08:00
Srinivas Goud
7075d733b8 dt-bindings: can: xilinx_can: Add 'xlnx,has-ecc' optional property
ECC feature added to CAN TX_OL, TX_TL and RX FIFOs of Xilinx AXI CAN
Controller.

ECC is an IP configuration option where counter registers are added in
IP for 1bit/2bit ECC errors.

'xlnx,has-ecc' is an optional property and added to Xilinx AXI CAN
Controller node if ECC block enabled in the HW

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Srinivas Goud <srinivas.goud@amd.com>
Link: https://lore.kernel.org/all/20240213-xilinx_ecc-v8-1-8d75f8b80771@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2024-02-16 14:18:30 +01:00
Jakub Kicinski
73be9a3aab Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

net/core/dev.c
  9f30831390 ("net: add rcu safety to rtnl_prop_list_size()")
  723de3ebef ("net: free altname using an RCU callback")

net/unix/garbage.c
  11498715f2 ("af_unix: Remove io_uring code for GC.")
  25236c91b5 ("af_unix: Fix task hung while purging oob_skb in GC.")

drivers/net/ethernet/renesas/ravb_main.c
  ed4adc0720 ("net: ravb: Count packets instead of descriptors in GbEth RX path"
)
  c2da940857 ("ravb: Add Rx checksum offload support for GbEth")

net/mptcp/protocol.c
  bdd70eb689 ("mptcp: drop the push_pending field")
  28e5c13805 ("mptcp: annotate lockless accesses around read-mostly fields")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-15 16:20:04 -08:00
Linus Torvalds
4f5e5092fd Including fixes from can, wireless and netfilter.
Current release - regressions:
 
  - af_unix: fix task hung while purging oob_skb in GC
 
  - pds_core: do not try to run health-thread in VF path
 
 Current release - new code bugs:
 
  - sched: act_mirred: don't zero blockid when net device is being deleted
 
 Previous releases - regressions:
 
  - netfilter:
    - nat: restore default DNAT behavior
    - nf_tables: fix bidirectional offload, broken when unidirectional
      offload support was added
 
  - openvswitch: limit the number of recursions from action sets
 
  - eth: i40e: do not allow untrusted VF to remove administratively
    set MAC address
 
 Previous releases - always broken:
 
  - tls: fix races and bugs in use of async crypto
 
  - mptcp: prevent data races on some of the main socket fields,
    fix races in fastopen handling
 
  - dpll: fix possible deadlock during netlink dump operation
 
  - dsa: lan966x: fix crash when adding interface under a lag
    when some of the ports are disabled
 
  - can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock
 
 Misc:
 
  - handful of fixes and reliability improvements for selftests
 
  - fix sysfs documentation missing net/ in paths
 
  - finish the work of squashing the missing MODULE_DESCRIPTION()
    warnings in networking
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from can, wireless and netfilter.

  Current release - regressions:

   - af_unix: fix task hung while purging oob_skb in GC

   - pds_core: do not try to run health-thread in VF path

  Current release - new code bugs:

   - sched: act_mirred: don't zero blockid when net device is being
     deleted

  Previous releases - regressions:

   - netfilter:
      - nat: restore default DNAT behavior
      - nf_tables: fix bidirectional offload, broken when unidirectional
        offload support was added

   - openvswitch: limit the number of recursions from action sets

   - eth: i40e: do not allow untrusted VF to remove administratively set
     MAC address

  Previous releases - always broken:

   - tls: fix races and bugs in use of async crypto

   - mptcp: prevent data races on some of the main socket fields, fix
     races in fastopen handling

   - dpll: fix possible deadlock during netlink dump operation

   - dsa: lan966x: fix crash when adding interface under a lag when some
     of the ports are disabled

   - can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock

  Misc:

   - a handful of fixes and reliability improvements for selftests

   - fix sysfs documentation missing net/ in paths

   - finish the work of squashing the missing MODULE_DESCRIPTION()
     warnings in networking"

* tag 'net-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (92 commits)
  net: fill in MODULE_DESCRIPTION()s for missing arcnet
  net: fill in MODULE_DESCRIPTION()s for mdio_devres
  net: fill in MODULE_DESCRIPTION()s for ppp
  net: fill in MODULE_DESCRIPTION()s for fddik/skfp
  net: fill in MODULE_DESCRIPTION()s for plip
  net: fill in MODULE_DESCRIPTION()s for ieee802154/fakelb
  net: fill in MODULE_DESCRIPTION()s for xen-netback
  net: ravb: Count packets instead of descriptors in GbEth RX path
  pppoe: Fix memory leak in pppoe_sendmsg()
  net: sctp: fix skb leak in sctp_inq_free()
  net: bcmasp: Handle RX buffer allocation failure
  net-timestamp: make sk_tskey more predictable in error path
  selftests: tls: increase the wait in poll_partial_rec_async
  ice: Add check for lport extraction to LAG init
  netfilter: nf_tables: fix bidirectional offload regression
  netfilter: nat: restore default DNAT behavior
  netfilter: nft_set_pipapo: fix missing : in kdoc
  igc: Remove temporary workaround
  igb: Fix string truncation warnings in igb_set_fw_version
  can: netlink: Fix TDCO calculation using the old data bittiming
  ...
2024-02-15 11:39:27 -08:00
Linus Torvalds
339e2fca02 Devicetree fixes for v6.8:
- Improve devlink dependency parsing for DT graphs
 
 - Fix devlink handling of io-channels dependencies
 
 - Fix PCI addressing in marvell,prestera example
 
 - A few schema fixes for property constraints
 
 - Improve performance of DT unprobed devices kselftest
 
 - Fix regression in DT_SCHEMA_FILES handling
 
 - Fix compile error in unittest for !OF_DYNAMIC
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Merge tag 'devicetree-fixes-for-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Improve devlink dependency parsing for DT graphs

 - Fix devlink handling of io-channels dependencies

 - Fix PCI addressing in marvell,prestera example

 - A few schema fixes for property constraints

 - Improve performance of DT unprobed devices kselftest

 - Fix regression in DT_SCHEMA_FILES handling

 - Fix compile error in unittest for !OF_DYNAMIC

* tag 'devicetree-fixes-for-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: ufs: samsung,exynos-ufs: Add size constraints on "samsung,sysreg"
  of: property: Add in-ports/out-ports support to of_graph_get_port_parent()
  of: property: Improve finding the supplier of a remote-endpoint property
  of: property: Improve finding the consumer of a remote-endpoint property
  net: marvell,prestera: Fix example PCI bus addressing
  of: unittest: Fix compile in the non-dynamic case
  of: property: fix typo in io-channels
  dt-bindings: tpm: Drop type from "resets"
  dt-bindings: display: nxp,tda998x: Fix 'audio-ports' constraints
  dt-bindings: xilinx: replace Piyush Mehta maintainership
  kselftest: dt: Stop relying on dirname to improve performance
  dt-bindings: don't anchor DT_SCHEMA_FILES to bindings directory
2024-02-15 10:19:55 -08:00
Alex Henrie
f4bcbf360a net: ipv6/addrconf: clamp preferred_lft to the minimum required
If the preferred lifetime was less than the minimum required lifetime,
ipv6_create_tempaddr would error out without creating any new address.
On my machine and network, this error happened immediately with the
preferred lifetime set to 5 seconds or less, after a few minutes with
the preferred lifetime set to 6 seconds, and not at all with the
preferred lifetime set to 7 seconds. During my investigation, I found a
Stack Exchange post from another person who seems to have had the same
problem: They stopped getting new addresses if they lowered the
preferred lifetime below 3 seconds, and they didn't really know why.

The preferred lifetime is a preference, not a hard requirement. The
kernel does not strictly forbid new connections on a deprecated address,
nor does it guarantee that the address will be disposed of the instant
its total valid lifetime expires. So rather than disable IPv6 privacy
extensions altogether if the minimum required lifetime swells above the
preferred lifetime, it is more in keeping with the user's intent to
increase the temporary address's lifetime to the minimum necessary for
the current network conditions.

With these fixes, setting the preferred lifetime to 5 or 6 seconds "just
works" because the extra fraction of a second is practically
unnoticeable. It's even possible to reduce the time before deprecation
to 1 or 2 seconds by setting /proc/sys/net/ipv6/conf/*/regen_min_advance
and /proc/sys/net/ipv6/conf/*/dad_transmits to 0. I realize that that is
a pretty niche use case, but I know at least one person who would gladly
sacrifice performance and convenience to be sure that they are getting
the maximum possible level of privacy.

Link: https://serverfault.com/a/1031168/310447
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-15 15:34:40 +01:00
Alex Henrie
a5fcea2d2f net: ipv6/addrconf: introduce a regen_min_advance sysctl
In RFC 8981, REGEN_ADVANCE cannot be less than 2 seconds, and the RFC
does not permit the creation of temporary addresses with lifetimes
shorter than that:

> When processing a Router Advertisement with a
> Prefix Information option carrying a prefix for the purposes of
> address autoconfiguration (i.e., the A bit is set), the host MUST
> perform the following steps:

> 5.  A temporary address is created only if this calculated preferred
>     lifetime is greater than REGEN_ADVANCE time units.

However, some users want to change their IPv6 address as frequently as
possible regardless of the RFC's arbitrary minimum lifetime. For the
benefit of those users, add a regen_min_advance sysctl parameter that
can be set to below or above 2 seconds.

Link: https://datatracker.ietf.org/doc/html/rfc8981
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-15 15:34:40 +01:00
Alex Henrie
2aa8f155b0 net: ipv6/addrconf: ensure that regen_advance is at least 2 seconds
RFC 8981 defines REGEN_ADVANCE as follows:

REGEN_ADVANCE = 2 + (TEMP_IDGEN_RETRIES * DupAddrDetectTransmits * RetransTimer / 1000)

Thus, allowing it to be less than 2 seconds is technically a protocol
violation.

Link: https://datatracker.ietf.org/doc/html/rfc8981#name-defined-protocol-parameters
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-15 15:34:40 +01:00
Easwar Hariharan
fb091ff394 arm64: Subscribe Microsoft Azure Cobalt 100 to ARM Neoverse N2 errata
Add the MIDR value of Microsoft Azure Cobalt 100, which is a Microsoft
implemented CPU based on r0p0 of the ARM Neoverse N2 CPU, and therefore
suffers from all the same errata.

CC: stable@vger.kernel.org # 5.15+
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240214175522.2457857-1-eahariha@linux.microsoft.com
Signed-off-by: Will Deacon <will@kernel.org>
2024-02-15 11:47:22 +00:00
Thorsten Blum
6388cfd0e6 docs: kconfig: Fix grammar and formatting
- Remove unnecessary spaces
- Fix grammar s/to solution/solution/

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-02-15 06:55:47 +09:00
Arnd Bergmann
e20f378d99 nvmem: include bit index in cell sysfs file name
Creating sysfs files for all Cells caused a boot failure for linux-6.8-rc1 on
Apple M1, which (in downstream dts files) has multiple nvmem cells that use the
same byte address. This causes the device probe to fail with

[    0.605336] sysfs: cannot create duplicate filename '/devices/platform/soc@200000000/2922bc000.efuse/apple_efuses_nvmem0/cells/efuse@a10'
[    0.605347] CPU: 7 PID: 1 Comm: swapper/0 Tainted: G S                 6.8.0-rc1-arnd-5+ #133
[    0.605355] Hardware name: Apple Mac Studio (M1 Ultra, 2022) (DT)
[    0.605362] Call trace:
[    0.605365]  show_stack+0x18/0x2c
[    0.605374]  dump_stack_lvl+0x60/0x80
[    0.605383]  dump_stack+0x18/0x24
[    0.605388]  sysfs_warn_dup+0x64/0x80
[    0.605395]  sysfs_add_bin_file_mode_ns+0xb0/0xd4
[    0.605402]  internal_create_group+0x268/0x404
[    0.605409]  sysfs_create_groups+0x38/0x94
[    0.605415]  devm_device_add_groups+0x50/0x94
[    0.605572]  nvmem_populate_sysfs_cells+0x180/0x1b0
[    0.605682]  nvmem_register+0x38c/0x470
[    0.605789]  devm_nvmem_register+0x1c/0x6c
[    0.605895]  apple_efuses_probe+0xe4/0x120
[    0.606000]  platform_probe+0xa8/0xd0

As far as I can tell, this is a problem for any device with multiple cells on
different bits of the same address. Avoid the issue by changing the file name
to include the first bit number.

Fixes: 0331c61194 ("nvmem: core: Expose cells through sysfs")
Link: bd0a1a7d4/arch/arm64/boot/dts/apple/t600x-dieX.dtsi (L156)
Cc:  <regressions@lists.linux.dev>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Rafał Miłecki <rafal@milecki.pl>
Cc: Chen-Yu Tsai <wenst@chromium.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:  <asahi@lists.linux.dev>
Cc: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20240209163454.98051-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-14 16:28:16 +01:00
Martin Hundebøll
b00cf4f629 dt-bindings: can: tcan4x5x: Document the wakeup-source flag
Let it be known that the tcan4x5x device can now be configured to wake
the host from suspend when a can frame is received.

Signed-off-by: Martin Hundebøll <martin@geanix.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
[mkl: make first the first patch]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2024-02-14 13:44:02 +01:00
Catalin Popescu
ed1d7dac08 dt-bindings: net: dp83826: support TX data voltage tuning
Add properties ti,cfg-dac-minus-one-bp/ti,cfg-dac-plus-one-bp
to support voltage tuning of logical levels -1/+1 of the MLT-3
encoded TX data.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-14 12:06:09 +00:00
Eric Dumazet
328771deab net: remove stale mentions of dev_base_lock in comments
Change comments incorrectly mentioning dev_base_lock.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-14 11:20:13 +00:00
Joe Damato
18e2bf0edf eventpoll: Add epoll ioctl for epoll_params
Add an ioctl for getting and setting epoll_params. User programs can use
this ioctl to get and set the busy poll usec time, packet budget, and
prefer busy poll params for a specific epoll context.

Parameters are limited:
  - busy_poll_usecs is limited to <= s32_max
  - busy_poll_budget is limited to <= NAPI_POLL_WEIGHT by unprivileged
    users (!capable(CAP_NET_ADMIN))
  - prefer_busy_poll must be 0 or 1
  - __pad must be 0

Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-14 11:01:01 +00:00
David S. Miller
e1a00373e1 linux-can-next-for-6.9-20240213
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Merge tag 'linux-can-next-for-6.9-20240213' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
linux-can-next-for-6.9-20240213

this is a pull request of 23 patches for net-next/master.

The first patch is by Nicolas Maier and targets the CAN Broadcast
Manager (bcm), it adds message flags to distinguish between own local
and remote traffic.

Oliver Hartkopp contributes a patch for the CAN ISOTP protocol that
adds dynamic flow control parameters.

Stefan Mätje's patch series add support for the esd PCIe/402 CAN
interface family.

Markus Schneider-Pargmann contributes 14 patches for the m_can to
optimize for the SPI attached tcan4x5x controller.

A patch by Vincent Mailhol replaces Wolfgang Grandegger by Vincent
Mailhol as the CAN drivers Co-Maintainer.

Jimmy Assarsson's patch add support for the Kvaser M.2 PCIe 4xCAN
adapter.

A patch by Daniil Dulov removed a redundant NULL check in the softing
driver.

Oliver Hartkopp contributes a patch to add CANXL virtual CAN network
identifier support.

A patch by myself removes Naga Sureshkumar Relli as the maintainer of
the xilinx_can driver, as their email bounces.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-14 10:00:35 +00:00
Krzysztof Kozlowski
4a78f0173b dt-bindings: net: qca,ar9331: convert to DT schema
Convert the Qualcomm Atheros AR9331 built-in switch bindings to DT
schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20240212182911.233819-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-13 18:51:14 -08:00
Rob Herring
4e06ec0774 dt-bindings: ufs: samsung,exynos-ufs: Add size constraints on "samsung,sysreg"
The 'phandle-array' type is a bit ambiguous. It can be either just an
array of phandles or an array of phandles plus args. "samsung,sysreg" is
the latter and needs to be constrained to a single entry with a phandle and
offset.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240124190733.1554314-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2024-02-13 10:32:13 -06:00
Linus Torvalds
c664e16bb1 A single fix to the kernel_feat extension for a bug that will crash
the docs build in some situations.
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Merge tag 'docs-6.8-fixes2' of git://git.lwn.net/linux

Pull documentation fix from Jonathan Corbet:
 "A single fix to the kernel_feat extension for a bug that will crash
  the docs build in some situations"

* tag 'docs-6.8-fixes2' of git://git.lwn.net/linux:
  docs: kernel_feat.py: fix build error for missing files
2024-02-12 14:11:30 -08:00
Nicolas Maier
fec846fa7e can: bcm: add recvmsg flags for own, local and remote traffic
CAN RAW sockets allow userspace to tell if a received CAN frame comes
from the same socket, another socket on the same host, or another host.
See commit 1e55659ce6 ("can-raw: add msg_flags to distinguish local
traffic"). However, this feature is missing in CAN BCM sockets.

Add the same feature to CAN BCM sockets. When reading a received frame
(opcode RX_CHANGED) using recvmsg, two flags in msg->msg_flags may be
set following the previous convention (from CAN RAW), to distinguish
between 'own', 'local' and 'remote' CAN traffic.

Update the documentation to reflect this change.

Signed-off-by: Nicolas Maier <nicolas.maier.dev@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20240120081018.2319-1-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2024-02-12 16:55:17 +01:00
Breno Leitao
5b3fbd61b9 net: sysfs: Fix /sys/class/net/<iface> path for statistics
The Documentation/ABI/testing/sysfs-class-net-statistics documentation
is pointing to the wrong path for the interface.  Documentation is
pointing to /sys/class/<iface>, instead of /sys/class/net/<iface>.

Fix it by adding the `net/` directory before the interface.

Fixes: 6044f97006 ("net: sysfs: document /sys/class/net/statistics/*")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-12 12:13:50 +00:00
Suraj Jaiswal
1963e65b3d dt-bindings: net: qcom,ethqos: add binding doc for safety IRQ for sa8775p
Add binding doc for safety IRQ. The safety IRQ will be
triggered for ECC(error correction code), DPP(data path
parity), FSM(finite state machine) error.

Signed-off-by: Suraj Jaiswal <quic_jsuraj@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-12 11:35:15 +00:00
Eric Dumazet
c353c7b7ff net-device: move lstats in net_device_read_txrx
dev->lstats is notably used from loopback ndo_start_xmit()
and other virtual drivers.

Per cpu stats updates are dirtying per-cpu data,
but the pointer itself is read-only.

Fixes: 43a71cd66b ("net-device: reorganize net_device fast path variables")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: Simon Horman <horms@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-12 09:51:26 +00:00
Eric Dumazet
666a877dea tcp: move tp->tcp_usec_ts to tcp_sock_read_txrx group
tp->tcp_usec_ts is a read mostly field, used in rx and tx fast paths.

Fixes: d5fed5addb ("tcp: reorganize tcp_sock fast path variables")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: Wei Wang <weiwan@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-12 09:51:26 +00:00
Eric Dumazet
119ff04864 tcp: move tp->scaling_ratio to tcp_sock_read_txrx group
tp->scaling_ratio is a read mostly field, used in rx and tx fast paths.

Fixes: d5fed5addb ("tcp: reorganize tcp_sock fast path variables")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: Wei Wang <weiwan@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-12 09:51:26 +00:00
Shinas Rasheed
cb7dd71218 octeon_ep_vf: Add driver framework and device initialization
Add driver framework and device setup and initialization for Octeon
PCI Endpoint NIC VF.

Add implementation to load module, initialize, register network device,
cleanup and unload module.

Signed-off-by: Shinas Rasheed <srasheed@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-12 09:01:52 +00:00
Christian Marangi
dd87eaa137 dt-bindings: net: Document Qcom QCA807x PHY package
Document Qcom QCA807x PHY package.

Qualcomm QCA807X Ethernet PHY is PHY package of 2 or 5
IEEE 802.3 clause 22 compliant 10BASE-Te, 100BASE-TX and
1000BASE-T PHY-s.

Document the required property to make the PHY package correctly
configure and work.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-10 15:36:19 +00:00
Christian Marangi
8453c88c7a dt-bindings: net: document ethernet PHY package nodes
Document ethernet PHY package nodes used to describe PHY shipped in
bundle of 2-5 PHY. The special node describe a container of PHY that
share common properties. This is a generic schema and PHY package
should create specialized version with the required additional shared
properties.

Example are PHY packages that have some regs only in one PHY of the
package and will affect every other PHY in the package, for example
related to PHY interface mode calibration or global PHY mode selection.

The PHY package node MUST declare the base address used by the PHY driver
for global configuration by calculating the offsets of the global PHY
based on the base address of the PHY package.

Each reg of the PHYs defined in the PHY package node is absolute and
describe the real address of the Ethernet PHY on the bus.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-10 15:36:19 +00:00
Jinjian Song
2dac6381c3 net: wwan: t7xx: Add fastboot WWAN port
On early detection of wwan device in fastboot mode, driver sets
up CLDMA0 HW tx/rx queues for raw data transfer and then create
fastboot port to userspace.

Application can use this port to flash firmware and collect
core dump by fastboot protocol commands.
E.g., flash firmware through fastboot port:
 - "download:%08x": write data to memory with the download size.
 - "flash:%s": write the previously downloaded image to the named partition.
 - "reboot": reboot the device.

Link: https://android.googlesource.com/platform/system/core/+/refs/heads/main/fastboot/README.md

Signed-off-by: Jinjian Song <jinjian.song@fibocom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-09 12:07:48 +00:00
Jinjian Song
409c38d4f1 net: wwan: t7xx: Add sysfs attribute for device state machine
Add support for userspace to get/set the device mode, device's state
machine changes between (unknown/ready/reset/fastboot).

Get the device state mode:
 - 'cat /sys/bus/pci/devices/${bdf}/t7xx_mode'

Set the device state mode:
 - reset(cold reset): 'echo reset > /sys/bus/pci/devices/${bdf}/t7xx_mode'
 - fastboot: 'echo fastboot_switching > /sys/bus/pci/devices/${bdf}/t7xx_mode'
Reload driver to get the new device state after setting operation.

Signed-off-by: Jinjian Song <jinjian.song@fibocom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-09 12:07:48 +00:00
Matthew Wood
aa7b608d69 net: netconsole: add docs for appending netconsole user data
Add a new User Data section to the netconsole docs to describe the
appending of user data capability (for netconsole dynamic configuration)
with usage and netconsole output examples.

Co-developed-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Matthew Wood <thepacketgeek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-09 10:23:45 +00:00
Parav Pandit
4ab18af47a devlink: Fix command annotation documentation
Command example string is not read as command.
Fix command annotation.

Fixes: a8ce7b26a5 ("devlink: Expose port function commands to control migratable")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240206161717.466653-1-parav@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-08 18:41:40 -08:00
Jiri Pirko
53c0441dd2 dpll: fix possible deadlock during netlink dump operation
Recently, I've been hitting following deadlock warning during dpll pin
dump:

[52804.637962] ======================================================
[52804.638536] WARNING: possible circular locking dependency detected
[52804.639111] 6.8.0-rc2jiri+ #1 Not tainted
[52804.639529] ------------------------------------------------------
[52804.640104] python3/2984 is trying to acquire lock:
[52804.640581] ffff88810e642678 (nlk_cb_mutex-GENERIC){+.+.}-{3:3}, at: netlink_dump+0xb3/0x780
[52804.641417]
               but task is already holding lock:
[52804.642010] ffffffff83bde4c8 (dpll_lock){+.+.}-{3:3}, at: dpll_lock_dumpit+0x13/0x20
[52804.642747]
               which lock already depends on the new lock.

[52804.643551]
               the existing dependency chain (in reverse order) is:
[52804.644259]
               -> #1 (dpll_lock){+.+.}-{3:3}:
[52804.644836]        lock_acquire+0x174/0x3e0
[52804.645271]        __mutex_lock+0x119/0x1150
[52804.645723]        dpll_lock_dumpit+0x13/0x20
[52804.646169]        genl_start+0x266/0x320
[52804.646578]        __netlink_dump_start+0x321/0x450
[52804.647056]        genl_family_rcv_msg_dumpit+0x155/0x1e0
[52804.647575]        genl_rcv_msg+0x1ed/0x3b0
[52804.648001]        netlink_rcv_skb+0xdc/0x210
[52804.648440]        genl_rcv+0x24/0x40
[52804.648831]        netlink_unicast+0x2f1/0x490
[52804.649290]        netlink_sendmsg+0x36d/0x660
[52804.649742]        __sock_sendmsg+0x73/0xc0
[52804.650165]        __sys_sendto+0x184/0x210
[52804.650597]        __x64_sys_sendto+0x72/0x80
[52804.651045]        do_syscall_64+0x6f/0x140
[52804.651474]        entry_SYSCALL_64_after_hwframe+0x46/0x4e
[52804.652001]
               -> #0 (nlk_cb_mutex-GENERIC){+.+.}-{3:3}:
[52804.652650]        check_prev_add+0x1ae/0x1280
[52804.653107]        __lock_acquire+0x1ed3/0x29a0
[52804.653559]        lock_acquire+0x174/0x3e0
[52804.653984]        __mutex_lock+0x119/0x1150
[52804.654423]        netlink_dump+0xb3/0x780
[52804.654845]        __netlink_dump_start+0x389/0x450
[52804.655321]        genl_family_rcv_msg_dumpit+0x155/0x1e0
[52804.655842]        genl_rcv_msg+0x1ed/0x3b0
[52804.656272]        netlink_rcv_skb+0xdc/0x210
[52804.656721]        genl_rcv+0x24/0x40
[52804.657119]        netlink_unicast+0x2f1/0x490
[52804.657570]        netlink_sendmsg+0x36d/0x660
[52804.658022]        __sock_sendmsg+0x73/0xc0
[52804.658450]        __sys_sendto+0x184/0x210
[52804.658877]        __x64_sys_sendto+0x72/0x80
[52804.659322]        do_syscall_64+0x6f/0x140
[52804.659752]        entry_SYSCALL_64_after_hwframe+0x46/0x4e
[52804.660281]
               other info that might help us debug this:

[52804.661077]  Possible unsafe locking scenario:

[52804.661671]        CPU0                    CPU1
[52804.662129]        ----                    ----
[52804.662577]   lock(dpll_lock);
[52804.662924]                                lock(nlk_cb_mutex-GENERIC);
[52804.663538]                                lock(dpll_lock);
[52804.664073]   lock(nlk_cb_mutex-GENERIC);
[52804.664490]

The issue as follows: __netlink_dump_start() calls control->start(cb)
with nlk->cb_mutex held. In control->start(cb) the dpll_lock is taken.
Then nlk->cb_mutex is released and taken again in netlink_dump(), while
dpll_lock still being held. That leads to ABBA deadlock when another
CPU races with the same operation.

Fix this by moving dpll_lock taking into dumpit() callback which ensures
correct lock taking order.

Fixes: 9d71b54b65 ("dpll: netlink: Add DPLL framework base functions")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Link: https://lore.kernel.org/r/20240207115902.371649-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-08 18:29:21 -08:00
Jakub Kicinski
3be042cf46 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

drivers/net/ethernet/stmicro/stmmac/common.h
  38cc3c6dcc ("net: stmmac: protect updates of 64-bit statistics counters")
  fd5a6a7131 ("net: stmmac: est: Per Tx-queue error count for HLBF")
  c5c3e1bfc9 ("net: stmmac: Offload queueMaxSDU from tc-taprio")

drivers/net/wireless/microchip/wilc1000/netdev.c
  c901388028 ("wifi: fill in MODULE_DESCRIPTION()s for wilc1000")
  328efda22a ("wifi: wilc1000: do not realloc workqueue everytime an interface is added")

net/unix/garbage.c
  11498715f2 ("af_unix: Remove io_uring code for GC.")
  1279f9d9de ("af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC.")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-08 15:30:33 -08:00
Vegard Nossum
c23de7ceae docs: kernel_feat.py: fix build error for missing files
If the directory passed to the '.. kernel-feat::' directive does not
exist or the get_feat.pl script does not find any files to extract
features from, Sphinx will report the following error:

    Sphinx parallel build error:
    UnboundLocalError: local variable 'fname' referenced before assignment
    make[2]: *** [Documentation/Makefile:102: htmldocs] Error 2

This is due to how I changed the script in c48a7c44a1 ("docs:
kernel_feat.py: fix potential command injection"). Before that, the
filename passed along to self.nestedParse() in this case was weirdly
just the whole get_feat.pl invocation.

We can fix it by doing what kernel_abi.py does -- just pass
self.arguments[0] as 'fname'.

Fixes: c48a7c44a1 ("docs: kernel_feat.py: fix potential command injection")
Cc: Justin Forbes <jforbes@fedoraproject.org>
Cc: Salvatore Bonaccorso <carnil@debian.org>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Link: https://lore.kernel.org/r/20240205175133.774271-2-vegard.nossum@oracle.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2024-02-08 11:05:35 -07:00
Jakub Kicinski
006e89649f mlx5-updates-2024-02-01
1) IPSec global stats for xfrm and mlx5
 2) XSK memory improvements for non-linear SKBs
 3) Software steering debug dump to use seq_file ops
 4) Various code clean-ups
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Merge tag 'mlx5-updates-2024-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2024-02-01

1) IPSec global stats for xfrm and mlx5
2) XSK memory improvements for non-linear SKBs
3) Software steering debug dump to use seq_file ops
4) Various code clean-ups

* tag 'mlx5-updates-2024-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5e: XDP, Exclude headroom and tailroom from memory calculations
  net/mlx5e: XSK, Exclude tailroom from non-linear SKBs memory calculations
  net/mlx5: DR, Change SWS usage to debug fs seq_file interface
  net/mlx5: Change missing SyncE capability print to debug
  net/mlx5: Remove initial segmentation duplicate definitions
  net/mlx5: Return specific error code for timeout on wait_fw_init
  net/mlx5: SF, Stop waiting for FW as teardown was called
  net/mlx5: remove fw reporter dump option for non PF
  net/mlx5: remove fw_fatal reporter dump option for non PF
  net/mlx5: Rename mlx5_sf_dev_remove
  Documentation: Fix counter name of mlx5 vnic reporter
  net/mlx5e: Delete obsolete IPsec code
  net/mlx5e: Connect mlx5 IPsec statistics with XFRM core
  xfrm: get global statistics from the offloaded device
  xfrm: generalize xdo_dev_state_update_curlft to allow statistics update
====================

Link: https://lore.kernel.org/r/20240206005527.1353368-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-07 18:34:34 -08:00
Alessandro Marcolini
70ff9a91e8 doc: netlink: specs: tc: add multi-attr to tc-taprio-sched-entry
Add multi-attr attribute to tc-taprio-sched-entry to specify multiple
entries.

Signed-off-by: Alessandro Marcolini <alessandromarcolini99@gmail.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/0ba5088ea715103a2bce83b12e2dcbdaa08da6ac.1706962013.git.alessandromarcolini99@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-06 18:56:19 -08:00
Aahil Awatramani
240fd40552 bonding: Add independent control state machine
Add support for the independent control state machine per IEEE
802.1AX-2008 5.4.15 in addition to the existing implementation of the
coupled control state machine.

Introduces two new states, AD_MUX_COLLECTING and AD_MUX_DISTRIBUTING in
the LACP MUX state machine for separated handling of an initial
Collecting state before the Collecting and Distributing state. This
enables a port to be in a state where it can receive incoming packets
while not still distributing. This is useful for reducing packet loss when
a port begins distributing before its partner is able to collect.

Added new functions such as bond_set_slave_tx_disabled_flags and
bond_set_slave_rx_enabled_flags to precisely manage the port's collecting
and distributing states. Previously, there was no dedicated method to
disable TX while keeping RX enabled, which this patch addresses.

Note that the regular flow process in the kernel's bonding driver remains
unaffected by this patch. The extension requires explicit opt-in by the
user (in order to ensure no disruptions for existing setups) via netlink
support using the new bonding parameter coupled_control. The default value
for coupled_control is set to 1 so as to preserve existing behaviour.

Signed-off-by: Aahil Awatramani <aahila@google.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240202175858.1573852-1-aahila@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-06 13:17:54 +01:00