Copy the code and:
- change ICE_AQC to LIBIE_AQC
- change ice_aqc to libie_aqc
- move definitions outside the structures
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
__icmp_send() is used to generate ICMP error messages in response to
various situations such as MTU errors (i.e., "Fragmentation Required")
and too many hops (i.e., "Time Exceeded").
The skb that generated the error does not necessarily come from the IPv4
layer and does not always have a valid IPv4 control block in skb->cb.
Therefore, commit 9ef6b42ad6 ("net: Add __icmp_send helper.") changed
the function to take the IP options structure as argument instead of
deriving it from the skb's control block. Some callers of this function
such as icmp_send() pass the IP options structure from the skb's control
block as in these call paths the control block is known to be valid, but
other callers simply pass a zeroed structure.
A subsequent patch will need __icmp_send() to access more information
from the IPv4 control block (specifically, the ifindex of the input
interface). As a preparation for this change, change the function to
take the IPv4 control block structure as an argument instead of the IP
options structure. This makes the function similar to its IPv6
counterpart that already takes the IPv6 control block structure as an
argument.
No functional changes intended.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250908073238.119240-3-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
We don't expect frags with unreadable memory to be presented
to XDP programs today, but the XDP helpers are designed to be
usable whether XDP is enabled or not. Support handling frags
with unreadable memory.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250905221539.2930285-3-kuba@kernel.org
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
xdp_update_skb_shared_info() needs to update skb state which
was maintained in xdp_buff / frame. Pass full flags into it,
instead of breaking it out bit by bit. We will need to add
a bit for unreadable frags (even tho XDP doesn't support
those the driver paths may be common), at which point almost
all call sites would become:
xdp_update_skb_shared_info(skb, num_frags,
sinfo->xdp_frags_size,
MY_PAGE_SIZE * num_frags,
xdp_buff_is_frag_pfmemalloc(xdp),
xdp_buff_is_frag_unreadable(xdp));
Keep a helper for accessing the flags, in case we need to
transform them somehow in the future (e.g. to cover up xdp_buff
vs xdp_frame differences).
While we are touching call callers - rename the helper to
xdp_update_skb_frags_info(), previous name may have implied that
it's shinfo that's updated. We are updating flags in struct sk_buff
based on frags that got attched.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://patch.msgid.link/20250905221539.2930285-2-kuba@kernel.org
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Since the generic debugfs interfaces for setting the periodic pulse
signal loopback have been added to the ptp_clock driver, so convert
the vendor-defined debugfs interfaces to the generic interfaces.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250905030711.1509648-4-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For some PTP devices, they have the capability to loop back the periodic
output signal for debugging, such as the ptp_qoriq device. So add the
generic interfaces to set the periodic output signal loopback, rather
than each vendor having a different implementation.
Show how many channels support the periodic output signal loopback:
$ cat /sys/kernel/debug/ptp<N>/n_perout_loopback
Enable the loopback of the periodic output signal of channel X:
$ echo <X> 1 > /sys/kernel/debug/ptp<N>/perout_loopback
Disable the loopback of the periodic output signal of channel X:
$ echo <X> 0 > /sys/kernel/debug/ptp<N>/perout_loopback
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20250905030711.1509648-2-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selects which algorithm should be used by the NIC in order to decide rate of
CQE compression dependeng on PCIe bus conditions.
Supported values:
1) balanced, merges fewer CQEs, resulting in a moderate compression ratio
but maintaining a balance between bandwidth savings and performance
2) aggressive, merges more CQEs into a single entry, achieving a higher
compression rate and maximizing performance, particularly under high
traffic loads.
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250907012953.301746-3-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
NICs are typically configured with total_vfs=0, forcing users to rely
on external tools to enable SR-IOV (a widely used and essential feature).
Add total_vfs parameter to devlink for SR-IOV max VF configurability.
Enables standard kernel tools to manage SR-IOV, addressing the need for
flexible VF configuration.
Signed-off-by: Vlad Dumitrescu <vdumitrescu@nvidia.com>
Tested-by: Kamal Heib <kheib@redhat.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250907012953.301746-2-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
idpf: add XDP support
Alexander Lobakin says:
Add XDP support (w/o XSk for now) to the idpf driver using the libeth_xdp
sublib. All possible verdicts, .ndo_xdp_xmit(), multi-buffer etc. are here.
In general, nothing outstanding comparing to ice, except performance --
let's say, up to 2x for .ndo_xdp_xmit() on certain platforms and
scenarios.
idpf doesn't support VLAN Rx offload, so only the hash hint is
available for now.
Patches 1-7 are prereqs, without which XDP would either not work at all
or work slower/worse/...
* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
idpf: add XDP RSS hash hint
idpf: add support for .ndo_xdp_xmit()
idpf: add support for XDP on Rx
idpf: use generic functions to build xdp_buff and skb
idpf: implement XDP_SETUP_PROG in ndo_bpf for splitq
idpf: prepare structures to support XDP
idpf: add support for nointerrupt queues
idpf: remove SW marker handling from NAPI
idpf: add 4-byte completion descriptor definition
idpf: link NAPIs to queues
idpf: use a saner limit for default number of queues to allocate
idpf: fix Rx descriptor ready check barrier in splitq
xdp, libeth: make the xdp_init_buff() micro-optimization generic
====================
Link: https://patch.msgid.link/20250908195748.1707057-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tariq Toukan says:
====================
mlx5-next updates 2025-09-09
The following pull-request contains a common mlx5 update.
* tag 'mlx5-rs-fec-ifc' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
net/mlx5: Add RS FEC histogram infrastructure
====================
Link: https://patch.msgid.link/1757413460-539097-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a new ad_select policy 'port_priority' that uses the per-port
actor priority values (set via ad_actor_port_prio) to determine
aggregator selection.
This allows administrators to influence which ports are preferred
for aggregation by assigning different priority values, providing
more flexible load balancing control in LACP configurations.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250902064501.360822-3-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Introduce a new netlink attribute 'actor_port_prio' to allow setting
the LACP actor port priority on a per-slave basis. This extends the
existing bonding infrastructure to support more granular control over
LACP negotiations.
The priority value is embedded in LACPDU packets and will be used by
subsequent patches to influence aggregator selection policies.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250902064501.360822-2-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Define the Ports Phy Histogram Configuration Register (PPHCR) to expose
RS-FEC histogram bin ranges, and expose a new counter group in the Ports
Performance Counters Register (PPCNT) to report the corresponding
histogram values.
Co-developed-by: Yael Chemla <ychemla@nvidia.com>
Signed-off-by: Yael Chemla <ychemla@nvidia.com>
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1756884600-520195-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Introduce two new ioctl commands, PTP_SYS_OFFSET_PRECISE_CYCLES and
PTP_SYS_OFFSET_EXTENDED_CYCLES, to allow user space to access the
raw free-running cycle counter from PTP devices.
These ioctls are variants of the existing PRECISE and EXTENDED
offset queries, but instead of returning device time in realtime,
they return the raw cycle counter value.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://patch.msgid.link/1755008228-88881-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
No more user of SNMP_MIB_SENTINEL, we can remove it.
Also remove snmp_get_cpu_field[64]_batch() helpers.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20250905165813.1470708-10-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use ARRAY_SIZE(), so that we know the limit at compile time.
Following patch needs this preliminary change.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20250905165813.1470708-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Often times the compilers are not able to expand two consecutive 32-bit
writes into one 64-bit on the corresponding architectures. This applies
to xdp_init_buff() called for every received frame (or at least once
per each 64 frames when the frag size is fixed).
Move the not-so-pretty hack from libeth_xdp straight to xdp_init_buff(),
but using a proper union around ::frame_sz and ::flags.
The optimization is limited to LE architectures due to the structure
layout.
One simple example from idpf with the XDP series applied (Clang 22-git,
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE => -O2):
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-27 (-27)
Function old new delta
idpf_vport_splitq_napi_poll 5076 5049 -27
The perf difference with XDP_DROP is around +0.8-1% which I see as more
than satisfying.
Suggested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Tested-by: Ramu R <ramu.r@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
We're reverting the removal of a Sundance driver, a user has appeared.
This makes the PR rather large in terms of LoC.
There's a conspicuous absence of real, user-reported 6.17 issues.
Slightly worried that the summer distracted people from testing.
Previous releases - regressions:
- ax25: properly unshare skbs in ax25_kiss_rcv()
Previous releases - always broken:
- phylink: disable autoneg for interfaces that have no inband,
fix regression on pcs-lynx (NXP LS1088)
- vxlan: fix null-deref when using nexthop objects
- batman-adv: fix OOB read/write in network-coding decode
- icmp: icmp_ndo_send: fix reversing address translation for replies
- tcp: fix socket ref leak in TCP-AO failure handling for IPv6
- mctp:
- mctp_fraq_queue should take ownership of passed skb
- usb: initialise mac header in RX path, avoid WARN
- wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz,
respect device limitations
- wifi: wilc1000: avoid buffer overflow in WID string configuration
- wifi: mt76:
- fix regressions from mt7996 MLO support rework
- fix offchannel handling issues on mt7996
- fix multiple wcid linked list corruption issues
- mt7921: don't disconnect when AP requests switch to a channel which
requires radar detection
- mt7925u: use connac3 tx aggr check in tx complete
- wifi: intel:
- improve validation of ACPI DSM data
- cfg: restore some 1000 series configs
- wifi: ath:
- ath11k: a fix for GTK rekeying
- ath12k: a missed WiFi7 capability (multi-link EMLSR)
- eth: intel:
- ice: fix races in "low latency" firmware interface for Tx timestamps
- idpf: set mac type when adding and removing MAC filters
- i40e: remove racy read access to some debugfs files
Misc:
- Revert "eth: remove the DLink/Sundance (ST201) driver"
- netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid confusing
modprobe
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, wireless and Bluetooth.
We're reverting the removal of a Sundance driver, a user has appeared.
This makes the PR rather large in terms of LoC.
There's a conspicuous absence of real, user-reported 6.17 issues.
Slightly worried that the summer distracted people from testing.
Previous releases - regressions:
- ax25: properly unshare skbs in ax25_kiss_rcv()
Previous releases - always broken:
- phylink: disable autoneg for interfaces that have no inband, fix
regression on pcs-lynx (NXP LS1088)
- vxlan: fix null-deref when using nexthop objects
- batman-adv: fix OOB read/write in network-coding decode
- icmp: icmp_ndo_send: fix reversing address translation for replies
- tcp: fix socket ref leak in TCP-AO failure handling for IPv6
- mctp:
- mctp_fraq_queue should take ownership of passed skb
- usb: initialise mac header in RX path, avoid WARN
- wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz,
respect device limitations
- wifi: wilc1000: avoid buffer overflow in WID string configuration
- wifi: mt76:
- fix regressions from mt7996 MLO support rework
- fix offchannel handling issues on mt7996
- fix multiple wcid linked list corruption issues
- mt7921: don't disconnect when AP requests switch to a channel
which requires radar detection
- mt7925u: use connac3 tx aggr check in tx complete
- wifi: intel:
- improve validation of ACPI DSM data
- cfg: restore some 1000 series configs
- wifi: ath:
- ath11k: a fix for GTK rekeying
- ath12k: a missed WiFi7 capability (multi-link EMLSR)
- eth: intel:
- ice: fix races in "low latency" firmware interface for Tx timestamps
- idpf: set mac type when adding and removing MAC filters
- i40e: remove racy read access to some debugfs files
Misc:
- Revert "eth: remove the DLink/Sundance (ST201) driver"
- netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid
confusing modprobe"
* tag 'net-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits)
phy: mscc: Stop taking ts_lock for tx_queue and use its own lock
selftest: net: Fix weird setsockopt() in bind_bhash.c.
MAINTAINERS: add Sabrina to TLS maintainers
gve: update MAINTAINERS
ppp: fix memory leak in pad_compress_skb
net: xilinx: axienet: Add error handling for RX metadata pointer retrieval
net: atm: fix memory leak in atm_register_sysfs when device_register fail
netfilter: nf_tables: Introduce NFTA_DEVICE_PREFIX
selftests: netfilter: fix udpclash tool hang
ax25: properly unshare skbs in ax25_kiss_rcv()
mctp: return -ENOPROTOOPT for unknown getsockopt options
net/smc: Remove validation of reserved bits in CLC Decline message
ipv4: Fix NULL vs error pointer check in inet_blackhole_dev_init()
net: thunder_bgx: decrement cleanup index before use
net: thunder_bgx: add a missing of_node_put
net: phylink: move PHY interrupt request to non-fail path
net: lockless sock_i_ino()
tools: ynl-gen: fix nested array counting
wifi: wilc1000: avoid buffer overflow in WID string configuration
wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
...
mlx5 pokes into the rxq state to check if the queue has a memory
provider, and therefore whether it may produce unreadable mem.
Add a helper for doing this in the page pool API. fbnic will want
a similar thing (tho, for a slightly different reason).
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-11-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This new attribute is supposed to be used instead of NFTA_DEVICE_NAME
for simple wildcard interface specs. It holds a NUL-terminated string
representing an interface name prefix to match on.
While kernel code to distinguish full names from prefixes in
NFTA_DEVICE_NAME is simpler than this solution, reusing the existing
attribute with different semantics leads to confusion between different
versions of kernel and user space though:
* With old kernels, wildcards submitted by user space are accepted yet
silently treated as regular names.
* With old user space, wildcards submitted by kernel may cause crashes
since libnftnl expects NUL-termination when there is none.
Using a distinct attribute type sanitizes these situations as the
receiving part detects and rejects the unexpected attribute nested in
*_HOOK_DEVS attributes.
Fixes: 6d07a28950 ("netfilter: nf_tables: Support wildcard netdev hook specs")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
An exchange with a NFC target must complete within NCI_DATA_TIMEOUT.
A delay of 700 ms is not sufficient for cryptographic operations on smart
cards. CardOS 6.0 may need up to 1.3 seconds to perform 256-bit ECDH
or 3072-bit RSA. To prevent brute-force attacks, passports and similar
documents introduce even longer delays into access control protocols
(BAC/PACE).
The timeout should be higher, but not too much. The expiration allows
us to detect that a NFC target has disappeared.
Signed-off-by: Juraj Šarinay <juraj@sarinay.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250902113630.62393-1-juraj@sarinay.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Followup of commit c51da3f7a1 ("net: remove sock_i_uid()")
A recent syzbot report was the trigger for this change.
Over the years, we had many problems caused by the
read_lock[_bh](&sk->sk_callback_lock) in sock_i_uid().
We could fix smc_diag_dump_proto() or make a more radical move:
Instead of waiting for new syzbot reports, cache the socket
inode number in sk->sk_ino, so that we no longer
need to acquire sk->sk_callback_lock in sock_i_ino().
This makes socket dumps faster (one less cache line miss,
and two atomic ops avoided).
Prior art:
commit 25a9c8a443 ("netlink: Add __sock_i_ino() for __netlink_diag_dump().")
commit 4f9bf2a2f5 ("tcp: Don't acquire inet_listen_hashbucket::lock with disabled BH.")
commit efc3dbc374 ("rds: Make rds_sock_lock BH rather than IRQ safe.")
Fixes: d2d6422f8b ("x86: Allow to enable PREEMPT_RT.")
Reported-by: syzbot+50603c05bbdf4dfdaffa@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/68b73804.050a0220.3db4df.01d8.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20250902183603.740428-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'nf-next-25-09-02' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Florian Westphal says:
====================
netfilter: updates for net-next
1) prefer vmalloc_array in ebtables, from Qianfeng Rong.
2) Use csum_replace4 instead of open-coding it, from Christophe Leroy.
3+4) Get rid of GFP_ATOMIC in transaction object allocations, those
cause silly failures with large sets under memory pressure, from
myself.
5) Remove test for AVX cpu feature in nftables pipapo set type,
testing for AVX2 feature is sufficient.
6) Unexport a few function in nf_reject infra: no external callers.
7) Extend payload offset to u16, this was restricted to values <=255
so far, from Fernando Fernandez Mancera.
* tag 'nf-next-25-09-02' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: nft_payload: extend offset to 65535 bytes
netfilter: nf_reject: remove unneeded exports
netfilter: nft_set_pipapo: remove redundant test for avx feature bit
netfilter: nf_tables: all transaction allocations can now sleep
netfilter: nf_tables: allow iter callbacks to sleep
netfilter: nft_payload: Use csum_replace4() instead of opencoding
netfilter: ebtables: Use vmalloc_array() to improve code
====================
Link: https://patch.msgid.link/20250902133549.15945-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In this context "not that ..." should properly be "note that ...".
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250902154640.759815-4-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a helper to check if RFS is needed or not. Allows to make the code a
bit cleaner and the next patch to have MPTCP use this helper to decide
whether or not to iterate over the subflows.
tun_flow_update() was calling sock_rps_record_flow_hash() regardless of
the state of rfs_needed. This was not really a bug as sock_flow_table
simply ends up being NULL and thus everything will be fine.
This commit here thus also implicitly makes tun_flow_update() respect
the state of rfs_needed.
Suggested-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Christoph Paasch <cpaasch@openai.com>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250902-net-next-mptcp-misc-feat-6-18-v2-3-fa02bb3188b1@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'mlx5-psp-ifc' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Saeed Mahameed says:
====================
mlx5 PSP IFC bits
This PR has a single patch to add mlx5_ifc PSP related capabilities structures
and HW definitions needed for PSP support in mlx5.
Link: https://lore.kernel.org/20250828162953.2707727-1-daniel.zahka@gmail.com
* tag 'mlx5-psp-ifc' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
net/mlx5: Add PSP capabilities structures and bits
====================
Link: https://patch.msgid.link/20250903063050.668442-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tcfa_qstats is currently only used to hold drops and overlimits counters.
tcf_action_inc_drop_qstats() and tcf_action_inc_overlimit_qstats()
currently acquire a->tcfa_lock to increment these counters.
Switch to two atomic_t to get lock-free accounting.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20250901093141.2093176-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove the implementation of use_carrier, the link monitoring
method that utilizes ethtool or ioctl to determine the link state of an
interface in a bond. Bonding will always behaves as if use_carrier=1,
which relies on netif_carrier_ok() to determine the link state of
interfaces.
To avoid acquiring RTNL many times per second, bonding inspects
link state under RCU, but not under RTNL. However, ethtool
implementations in drivers may sleep, and therefore this strategy is
unsuitable for use with calls into driver ethtool functions.
The use_carrier option was introduced in 2003, to provide
backwards compatibility for network device drivers that did not support
the then-new netif_carrier_ok/on/off system. Device drivers are now
expected to support netif_carrier_*, and the use_carrier backwards
compatibility logic is no longer necessary.
The option itself remains, but when queried always returns 1,
and may only be set to 1.
Link: https://lore.kernel.org/000000000000eb54bf061cfd666a@google.com
Link: https://lore.kernel.org/20240718122017.d2e33aaac43a.I10ab9c9ded97163aef4e4de10985cd8f7de60d28@changeid
Signed-off-by: Jay Vosburgh <jv@jvosburgh.net>
Reported-by: syzbot+b8c48ea38ca27d150063@syzkaller.appspotmail.com
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/2029487.1756512517@famine
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
or aren't considered necessary for -stable kernels. 11 of these fixes are
for MM.
This includes a three-patch series from Harry Yoo which fixes an
intermittent boot failure which can occur on x86 systems. And a two-patch
series from Alexander Gordeev which fixes a KASAN crash on S390 systems.
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Merge tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes. 13 are cc:stable and the remainder address post-6.16
issues or aren't considered necessary for -stable kernels. 11 of these
fixes are for MM.
This includes a three-patch series from Harry Yoo which fixes an
intermittent boot failure which can occur on x86 systems. And a
two-patch series from Alexander Gordeev which fixes a KASAN crash on
S390 systems"
* tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: fix possible deadlock in kmemleak
x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
mm: introduce and use {pgd,p4d}_populate_kernel()
mm: move page table sync declarations to linux/pgtable.h
proc: fix missing pde_set_flags() for net proc files
mm: fix accounting of memmap pages
mm/damon/core: prevent unnecessary overflow in damos_set_effective_quota()
kexec: add KEXEC_FILE_NO_CMA as a legal flag
kasan: fix GCC mem-intrinsic prefix with sw tags
mm/kasan: avoid lazy MMU mode hazards
mm/kasan: fix vmalloc shadow memory (de-)population races
kunit: kasan_test: disable fortify string checker on kasan_strings() test
selftests/mm: fix FORCE_READ to read input value correctly
mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE
ocfs2: prevent release journal inode after journal shutdown
rust: mm: mark VmaNew as transparent
of_numa: fix uninitialized memory nodes causing kernel panic
In some situations 255 bytes offset is not enough to match or manipulate
the desired packet field. Increase the offset limit to 65535 or U16_MAX.
In addition, the nla policy maximum value is not set anymore as it is
limited to s16. Instead, the maximum value is checked during the payload
expression initialization function.
Tested with the nft command line tool.
table ip filter {
chain output {
@nh,2040,8 set 0xff
@nh,524280,8 set 0xff
@nh,524280,8 0xff
@nh,2040,8 0xff
}
}
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
Quoting Sven Auhagen:
we do see on occasions that we get the following error message, more so on
x86 systems than on arm64:
Error: Could not process rule: Cannot allocate memory delete table inet filter
It is not a consistent error and does not happen all the time.
We are on Kernel 6.6.80, seems to me like we have something along the lines
of the nf_tables: allow clone callbacks to sleep problem using GFP_ATOMIC.
As hinted at by Sven, this is because of GFP_ATOMIC allocations during
set flush.
When set is flushed, all elements are deactivated. This triggers a set
walk and each element gets added to the transaction list.
The rbtree and rhashtable sets don't allow the iter callback to sleep:
rbtree walk acquires read side of an rwlock with bh disabled, rhashtable
walk happens with rcu read lock held.
Rbtree is simple enough to resolve:
When the walk context is ITER_READ, no change is needed (the iter
callback must not deactivate elements; we're not in a transaction).
When the iter type is ITER_UPDATE, the rwlock isn't needed because the
caller holds the transaction mutex, this prevents any and all changes to
the ruleset, including add/remove of set elements.
Rhashtable is slightly more complex.
When the iter type is ITER_READ, no change is needed, like rbtree.
For ITER_UPDATE, we hold transaction mutex which prevents elements from
getting free'd, even outside of rcu read lock section.
So build a temporary list of all elements while doing the rcu iteration
and then call the iterator in a second pass.
The disadvantage is the need to iterate twice, but this cost comes with
the benefit to allow the iter callback to use GFP_KERNEL allocations in
a followup patch.
The new list based logic makes it necessary to catch recursive calls to
the same set earlier.
Such walk -> iter -> walk recursion for the same set can happen during
ruleset validation in case userspace gave us a bogus (cyclic) ruleset
where verdict map m jumps to chain that sooner or later also calls
"vmap @m".
Before the new ->in_update_walk test, the ruleset is rejected because the
infinite recursion causes ctx->level to exceed the allowed maximum.
But with the new logic added here, elements would get skipped:
nft_rhash_walk_update would see elements that are on the walk_list of
an older stack frame.
As all recursive calls into same map results in -EMLINK, we can avoid this
problem by using the new in_update_walk flag and reject immediately.
Next patch converts the problematic GFP_ATOMIC allocations.
Reported-by: Sven Auhagen <Sven.Auhagen@belden.com>
Closes: https://lore.kernel.org/netfilter-devel/BY1PR18MB5874110CAFF1ED098D0BC4E7E07BA@BY1PR18MB5874.namprd18.prod.outlook.com/
Signed-off-by: Florian Westphal <fw@strlen.de>
Some Ethernet controllers do not have an integrated PTP timer function.
Instead, the PTP timer is a separated device and provides PTP hardware
clock to the Ethernet controller to use. Therefore, the Ethernet
controller driver needs to obtain the PTP clock's phc_index in its
ethtool_ops::get_ts_info(). Currently, most drivers implement this in
the following ways.
1. The PTP device driver adds a custom API and exports it to the Ethernet
controller driver.
2. The PTP device driver adds private data to its device structure. So
the private data structure needs to be exposed to the Ethernet controller
driver.
When registering the ptp clock, ptp_clock_register() always saves the
ptp_clock pointer to the private data of ptp_clock::dev. Therefore, as
long as ptp_clock::dev is obtained, the phc_index can be obtained. So
the following generic APIs can be added to the ptp driver to obtain the
phc_index.
1. ptp_clock_index_by_dev(): Obtain the phc_index by the device pointer
of the PTP device.
2.ptp_clock_index_by_of_node(): Obtain the phc_index by the of_node
pointer of the PTP device.
Also, we can add another API like ptp_clock_index_by_fwnode() to get the
phc_index by fwnode of PTP device. However, this API is not used in this
patch set, so it is better to add it when needed.
Suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250829050615.1247468-4-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Provide isolation between netns for ping idents.
Randomize initial ping_port_rover value at netns creation.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250829153054.474201-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There is no point in keeping ping_hash().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://patch.msgid.link/20250829153054.474201-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
TCP tracks the number of orphaned (SOCK_DEAD but not yet destructed)
sockets in tcp_orphan_count.
In some code that was shared with DCCP, tcp_orphan_count is referenced
via sk->sk_prot->orphan_count.
Let's reference tcp_orphan_count directly.
inet_csk_prepare_for_destroy_sock() is moved to inet_connection_sock.c
due to header dependency.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250829215641.711664-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use RCU to protect accesses to dst->dev from sk_setup_caps()
and sk_dst_gso_max_size().
Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(),
and ip_dst_mtu_maybe_forward().
ip4_dst_hoplimit() can use dst_dev_net_rcu().
Fixes: 4a6ce2b6f2 ("net: introduce a new function dst_dev_put()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250828195823.3958522-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Followup of commit 88fe14253e ("net: dst: add four helpers
to annotate data-races around dst->dev").
We want to gradually add explicit RCU protection to dst->dev,
including lockdep support.
Add an union to alias dst->dev_rcu and dst->dev.
Add dst_dev_net_rcu() helper.
Fixes: 4a6ce2b6f2 ("net: introduce a new function dst_dev_put()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250828195823.3958522-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
inet_diag_bc_sk() pulls five cache lines per socket,
while most filters only need the two first ones.
Add three booleans to struct inet_diag_dump_data,
that are selectively set if a filter needs specific socket fields.
- mark_needed /* INET_DIAG_BC_MARK_COND present. */
- cgroup_needed /* INET_DIAG_BC_CGROUP_COND present. */
- userlocks_needed /* INET_DIAG_BC_AUTO present. */
This removes millions of cache lines misses per ss invocation
when simple filters are specified on busy servers.
offsetof(struct sock, sk_userlocks) = 0xf3
offsetof(struct sock, sk_mark) = 0x20c
offsetof(struct sock, sk_cgrp_data) = 0x298
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250828102738.2065992-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We want to have access to the inet_diag_dump_data structure
in the following patch.
This patch removes duplication in callers.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250828102738.2065992-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Like ppp_generic.c, convert the PPPoE socket hash table to use RCU for
lookups and a spinlock for updates. This removes rwlock usage and allows
lockless readers on the fast path.
- Mark hash table and list pointers as __rcu.
- Use spin_lock() to protect writers.
- Readers use rcu_dereference() under rcu_read_lock(). All known callers
of get_item() already hold the RCU read lock, so no additional locking
is needed.
- get_item() now uses refcount_inc_not_zero() instead of sock_hold() to
safely take a reference. This prevents crashes if a socket is already
in the process of being freed (sk_refcnt == 0).
- Set SOCK_RCU_FREE to defer socket freeing until after an RCU grace
period.
- Move skb_queue_purge() into sk_destruct callback to ensure purge
happens after an RCU grace period.
Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250828012018.15922-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Cross-merge networking fixes after downstream PR (net-6.17-rc4).
No conflicts.
Adjacent changes:
drivers/net/ethernet/intel/idpf/idpf_txrx.c
02614eee26 ("idpf: do not linearize big TSO packets")
6c4e684802 ("idpf: remove obsolete stashing code")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
gpuvm:
- fix some typos
xe:
- Fix user-fence race issue
- Couple xe_vm fixes
- Don't trigger rebind on initial dma-buf validation
- Fix a build issue related to basename() posix vs gnu discrepancy
amdgpu:
- pin buffers while vmapping
- UserQ fixes
- Revert CSA fix
- SR-IOV fix
nouveau:
- fix linear modifier
- remove some dead code
msm:
- Core/GPU:
- fix comment doc warning in gpuvm
- fix build with KMS disabled
- fix pgtable setup/teardown race
- global fault counter fix
- various error path fixes
- GPU devcoredump snapshot fixes
- handle in-place VM_BIND remaps to solve turnip vm update race
- skip re-emitting IBs for unusable VMs
- Don't use %pK through printk
- moved display snapshot init earlier, fixing a crash
- DPU:
- Fixed crash in virtual plane checking code
- Fixed mode comparison in virtual plane checking code
- DSI:
- Adjusted width of resulution-related registers
- Fixed locking issue on 14nm PLLs
- UBWC (per Bjorn's ack)
- Added UBWC configuration for several missing platforms (fixing
regression)
mediatek:
- Add error handling for old state CRTC in atomic_disable
- Fix DSI host and panel bridge pre-enable order
- Fix device/node reference count leaks in mtk_drm_get_all_drm_priv
- mtk_hdmi: Fix inverted parameters in some regmap_update_bits calls
tegra:
- revert dma-buf change
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Merge tag 'drm-fixes-2025-08-29' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly fixes, feels a bit big.
The major piece is msm fixes, then the usual amdgpu/xe along with some
mediatek and nouveau fixes and a tegra revert.
gpuvm:
- fix some typos
xe:
- Fix user-fence race issue
- Couple xe_vm fixes
- Don't trigger rebind on initial dma-buf validation
- Fix a build issue related to basename() posix vs gnu discrepancy
amdgpu:
- pin buffers while vmapping
- UserQ fixes
- Revert CSA fix
- SR-IOV fix
nouveau:
- fix linear modifier
- remove some dead code
msm:
- Core/GPU:
- fix comment doc warning in gpuvm
- fix build with KMS disabled
- fix pgtable setup/teardown race
- global fault counter fix
- various error path fixes
- GPU devcoredump snapshot fixes
- handle in-place VM_BIND remaps to solve turnip vm update race
- skip re-emitting IBs for unusable VMs
- Don't use %pK through printk
- moved display snapshot init earlier, fixing a crash
- DPU:
- Fixed crash in virtual plane checking code
- Fixed mode comparison in virtual plane checking code
- DSI:
- Adjusted width of resulution-related registers
- Fixed locking issue on 14nm PLLs
- UBWC (per Bjorn's ack)
- Added UBWC configuration for several missing platforms (fixing
regression)
mediatek:
- Add error handling for old state CRTC in atomic_disable
- Fix DSI host and panel bridge pre-enable order
- Fix device/node reference count leaks in mtk_drm_get_all_drm_priv
- mtk_hdmi: Fix inverted parameters in some regmap_update_bits calls
tegra:
- revert dma-buf change"
* tag 'drm-fixes-2025-08-29' of https://gitlab.freedesktop.org/drm/kernel: (56 commits)
drm/mediatek: mtk_hdmi: Fix inverted parameters in some regmap_update_bits calls
drm/amdgpu/userq: fix error handling of invalid doorbell
drm/amdgpu: update firmware version checks for user queue support
drm/amd/amdgpu: disable hwmon power1_cap* for gfx 11.0.3 on vf mode
Revert "drm/amdgpu: fix incorrect vm flags to map bo"
drm/amdgpu/gfx12: set MQD as appriopriate for queue types
drm/amdgpu/gfx11: set MQD as appriopriate for queue types
drm/xe: switch to local xbasename() helper
drm/xe: Don't trigger rebind on initial dma-buf validation
drm/xe/vm: Clear the scratch_pt pointer on error
drm/xe/vm: Don't pin the vm_resv during validation
drm/xe/xe_sync: avoid race during ufence signaling
Revert "drm/tegra: Use dma_buf from GEM object instance"
soc: qcom: use no-UBWC config for MSM8956/76
soc: qcom: add configuration for MSM8929
soc: qcom: ubwc: add more missing platforms
soc: qcom: ubwc: use no-uwbc config for MSM8917
drm/msm/dpu: Add a null ptr check for dpu_encoder_needs_modeset
dt-bindings: display/msm: qcom,mdp5: drop lut clock
drm/gpuvm: fix various typos in .c and .h gpuvm file
...
Also storing tcf_action into struct tcf_skbmod_params
makes sure there is no discrepancy in tcf_skbmod_act().
No longer block BH in tcf_skbmod_init() when acquiring tcf_lock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250827125349.3505302-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Also storing tcf_action into struct tcf_tunnel_key_params
makes sure there is no discrepancy in tunnel_key_act().
No longer block BH in tunnel_key_init() when acquiring tcf_lock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250827125349.3505302-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Also storing tcf_action into struct tcf_vlan_params
makes sure there is no discrepancy in tcf_vlan_act().
No longer block BH in tcf_vlan_init() when acquiring tcf_lock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250827125349.3505302-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
