With CONFIG_MITIGATION_RETPOLINE=y dst_mtu() is a bit fat,
because it is generic.
Indeed, clang does not always inline it.
Add dst4_mtu() and dst6_mtu() helpers for callers that
expect either ipv4_mtu() or ip6_mtu() to be called.
These helpers are always inlined.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260130210303.3888261-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
With CONFIG_STACKPROTECTOR_STRONG=y, it is better to avoid passing
a pointer to an automatic variable.
Change these exported functions to return 'u8 proto'
instead of void.
- ipv6_push_nfrag_opts()
- ipv6_push_frag_opts()
For instance, replace
ipv6_push_frag_opts(skb, opt, &proto);
with:
proto = ipv6_push_frag_opts(skb, opt, proto);
Note that even after this change, ip6_xmit() has to use a stack canary
because of @first_hop variable.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260130210303.3888261-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Extend the RCU section a bit so that we can use the safer
skb_dst_dev_rcu() helper.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260130191906.3781856-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The AX25_DAMA_MASTER option has been unimplemented and marked broken
ever since it was introduced in 2007 in commit 954b2e7f4c ("[NET]
AX.25 Kconfig and docs updates and fixes"). At this point, it is very
unlikely it will be implemented. Remove it.
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20260129080908.44710-1-enelsonmoore@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
By default, when a kmem_cache is created with SLAB_TYPESAFE_BY_RCU,
slub has to use extra storage for the freelist pointer after each
object, because slub assumes that any bit in the object
can be used by RCU readers.
Because proto_register() is also using SLAB_HWCACHE_ALIGN,
this forces slub to use one extra cache line per object.
We can instead put the slub freelist anywhere in the object,
granted the concurrent RCU readers are not supposed to
use the pointer value.
Add a new (struct sock)sk_freeptr field, in an union
with sk_rcu: No RCU readers would need to look at sk_rcu,
which is only used at free phase.
Tested:
grep . /sys/kernel/slab/TCP/{object_size,slab_size,objs_per_slab}
grep . /sys/kernel/slab/TCPv6/{object_size,slab_size,objs_per_slab}
Before:
/sys/kernel/slab/TCP/object_size:2368
/sys/kernel/slab/TCP/slab_size:2432
/sys/kernel/slab/TCP/objs_per_slab:13
/sys/kernel/slab/TCPv6/object_size:2496
/sys/kernel/slab/TCPv6/slab_size:2560
/sys/kernel/slab/TCPv6/objs_per_slab:12
After this patch, we can pack one more TCPv6 object per slab,
and object_size == slab_size.
/sys/kernel/slab/TCP/object_size:2368
/sys/kernel/slab/TCP/slab_size:2368
/sys/kernel/slab/TCP/objs_per_slab:13
/sys/kernel/slab/TCPv6/object_size:2496
/sys/kernel/slab/TCPv6/slab_size:2496
/sys/kernel/slab/TCPv6/objs_per_slab:13
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260129153458.4163797-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- cfg80211/mac80211
- most of EPPKE/802.1X over auth frames support
- additional FTM capabilities
- split up drop reasons better, removing generic RX_DROP
- NAN cleanups/fixes
- ath11k:
- support for Channel Frequency Response measurement
- ath12k:
- support for the QCC2072 chipset
- iwlwifi:
- partial NAN support
- UNII-9 support
- some UHR/802.11bn FW APIs
- remove most of MLO/EHT from iwlmvm
(such devices use iwlmld)
- rtw89:
- preparations for RTL8922DE support
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Merge tag 'wireless-next-2026-01-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
Another fairly large set of changes, notably:
- cfg80211/mac80211
- most of EPPKE/802.1X over auth frames support
- additional FTM capabilities
- split up drop reasons better, removing generic RX_DROP
- NAN cleanups/fixes
- ath11k:
- support for Channel Frequency Response measurement
- ath12k:
- support for the QCC2072 chipset
- iwlwifi:
- partial NAN support
- UNII-9 support
- some UHR/802.11bn FW APIs
- remove most of MLO/EHT from iwlmvm
(such devices use iwlmld)
- rtw89:
- preparations for RTL8922DE support
* tag 'wireless-next-2026-01-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (184 commits)
wifi: iwlegacy: add missing mutex protection in il4965_store_tx_power()
wifi: iwlegacy: add missing mutex protection in il3945_store_measurement()
wifi: mac80211: use u64_stats_t with u64_stats_sync properly
wifi: p54: Fix memory leak in p54_beacon_update()
wifi: cfg80211: treat deprecated INDOOR_SP_AP_OLD control value as LPI mode
wifi: rtw88: sdio: Migrate to use sdio specific shutdown function
wifi: rsi: sdio: Migrate to use sdio specific shutdown function
sdio: Provide a bustype shutdown function
wifi: nl80211/cfg80211: support operating as RSTA in PMSR FTM request
wifi: nl80211/cfg80211: add negotiated burst period to FTM result
wifi: nl80211/cfg80211: clarify periodic FTM parameters for non-EDCA based ranging
wifi: nl80211/cfg80211: add new FTM capabilities
wifi: iwlwifi: rename struct iwl_mcc_allowed_ap_type_cmd::offset_map
wifi: iwlwifi: mvm: Remove link_id from time_events
wifi: iwlwifi: mld: change cluster_id type to u8 array
wifi: iwlwifi: support V13 of iwl_lari_config_change_cmd
wifi: iwlwifi: split bios_value_u32 to separate the header
wifi: iwlwifi: uefi: cache the DSM functions
wifi: iwlwifi: acpi: cache the DSM functions
wifi: iwlwifi: mvm: Cleanup MLO code
...
====================
Link: https://patch.msgid.link/20260129110136.176980-39-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
fl6_update_dst() is called for every TCP (and others) transmit,
and is a nop for common cases.
Split it in two parts :
1) fl6_update_dst() inline helper, small and fast.
2) __fl6_update_dst() for the exception, out of line.
Small size increase to get better TX performance.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 2/2 grow/shrink: 8/0 up/down: 296/-125 (171)
Function old new delta
__fl6_update_dst - 104 +104
rawv6_sendmsg 2244 2284 +40
udpv6_sendmsg 3013 3043 +30
tcp_v6_connect 1514 1534 +20
cookie_v6_check 1501 1519 +18
ip6_datagram_dst_update 673 690 +17
inet6_sk_rebuild_header 499 516 +17
inet6_csk_route_socket 507 524 +17
inet6_csk_route_req 343 360 +17
__pfx___fl6_update_dst - 16 +16
__pfx_fl6_update_dst 16 - -16
fl6_update_dst 109 - -109
Total: Before=22570304, After=22570475, chg +0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260128185548.3738781-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This attempts to proper track outstanding request by using struct ida
and allocating from it in l2cap_get_ident using ida_alloc_range which
would reuse ids as they are free, then upon completion release
the id using ida_free.
This fixes the qualification test case L2CAP/COS/CED/BI-29-C which
attempts to check if the host stack is able to work after 256 attempts
to connect which requires Ident field to use the full range of possible
values in order to pass the test.
Link: https://github.com/bluez/bluez/issues/1829
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
This renames the PHY fields in bt_iso_io_qos to PHYs (plural) since it
represents a bitfield where multiple PHYs can be set and make the same
change also to HCI_OP_LE_SET_CIG_PARAMS since both c_phy and p_phy
fields are bitfields.
This also fixes the assumption that hci_evt_le_cis_established PHYs
fields are compatible with bt_iso_io_qos, they are not, the fields in
hci_evt_le_cis_established represent just a single PHY value so they
need to be converted to bitfield when set in bt_iso_io_qos.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This enables client to use setsockopt(BT_PHY) to set the connection
packet type/PHY:
Example setting BT_PHY_BR_1M_1SLOT:
< HCI Command: Change Conne.. (0x01|0x000f) plen 4
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation)
Packet type: 0x331e
2-DH1 may not be used
3-DH1 may not be used
DM1 may be used
DH1 may be used
2-DH3 may not be used
3-DH3 may not be used
2-DH5 may not be used
3-DH5 may not be used
> HCI Event: Command Status (0x0f) plen 4
Change Connection Packet Type (0x01|0x000f) ncmd 1
Status: Success (0x00)
> HCI Event: Connection Packet Typ.. (0x1d) plen 5
Status: Success (0x00)
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation)
Packet type: 0x331e
2-DH1 may not be used
3-DH1 may not be used
DM1 may be used
DH1 may be used
2-DH3 may not be used
3-DH3 may not be used
2-DH5 may not be used
Example setting BT_PHY_LE_1M_TX and BT_PHY_LE_1M_RX:
< HCI Command: LE Set PHY (0x08|0x0032) plen 7
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation)
All PHYs preference: 0x00
TX PHYs preference: 0x01
LE 1M
RX PHYs preference: 0x01
LE 1M
PHY options preference: Reserved (0x0000)
> HCI Event: Command Status (0x0f) plen 4
LE Set PHY (0x08|0x0032) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 6
LE PHY Update Complete (0x0c)
Status: Success (0x00)
Handle: 1 Address: 00:AA:01:01:00:00 (Intel Corporation)
TX PHY: LE 1M (0x01)
RX PHY: LE 1M (0x01)
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
1. Implement LE Event Mask to include events required for
LE Channel Sounding
2. Enable Channel Sounding feature bit in the
LE Host Supported Features command
3. Define HCI command and event structures necessary for
LE Channel Sounding functionality
Signed-off-by: Naga Bhavani Akella <naga.akella@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
conn->le_{tx,rx}_phy is not actually a bitfield as it set by
HCI_EV_LE_PHY_UPDATE_COMPLETE it is actually correspond to the current
PHY in use not what is supported by the controller, so this introduces
different fields (conn->le_{tx,rx}_def_phys) to track what PHYs are
supported by the connection.
Fixes: eab2404ba7 ("Bluetooth: Add BT_PHY socket option")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
The current implementation uses a linear list to find queued packets by
ID when processing verdicts from userspace. With large queue depths and
out-of-order verdicting, this O(n) lookup becomes a significant
bottleneck, causing userspace verdict processing to dominate CPU time.
Replace the linear search with a hash table for O(1) average-case
packet lookup by ID. A global rhashtable spanning all network
namespaces attributes hash bucket memory to kernel but is subject to
fixed upper bound.
Signed-off-by: Scott Mitchell <scott.k.mitch1@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
tcp_rack_advance() is called from tcp_ack() and tcp_sacktag_one().
Moving it to tcp_input.c allows the compiler to inline it and save
both space and cpu cycles in TCP fast path.
$ scripts/bloat-o-meter -t vmlinux.1 vmlinux.2
add/remove: 0/2 grow/shrink: 1/1 up/down: 98/-132 (-34)
Function old new delta
tcp_ack 5741 5839 +98
tcp_sacktag_one 407 395 -12
__pfx_tcp_rack_advance 16 - -16
tcp_rack_advance 104 - -104
Total: Before=22572680, After=22572646, chg -0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260127032147.3498272-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tcp_rack_update_reo_wnd() is called only once from tcp_ack()
Move it to tcp_input.c so that it can be inlined by the compiler
to save space and cpu cycles.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/2 grow/shrink: 1/0 up/down: 110/-153 (-43)
Function old new delta
tcp_ack 5631 5741 +110
__pfx_tcp_rack_update_reo_wnd 16 - -16
tcp_rack_update_reo_wnd 137 - -137
Total: Before=22572723, After=22572680, chg -0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260127032147.3498272-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Although value 4 (INDOOR_SP_AP_OLD) is deprecated in IEEE standards,
existing APs may still use this control value. Since this value is
based on the old specification, we cannot trust such APs implement
proper power controls.
Therefore, move IEEE80211_6GHZ_CTRL_REG_INDOOR_SP_AP_OLD case
from SP_AP to LPI_AP power type handling to prevent potential
power limit violations.
Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260111163601.6b5a36d3601e.I1704ee575fd25edb0d56f48a0a3169b44ef72ad0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add an option to operate as the RSTA in an FTM measurement request.
When requested, the device will dwell on the requested channel until
the peer starts the FTM negotiation. This option is only valid for
trigger-based/non trigger-based measurement with LMR feedback which
will allow the RSTA to receive the results of the measurement.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260111190221.1f95fc0afab4.Iae2d32783b8e7c4a29089fec0f4c6bce94d303cc@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The FTM result includes some of the periodic measurement negotiated
parameters (like the burst duration and number of bursts), but it
doesn't include the burst period. Add it to the FTM result
notification.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260111190221.e0778f86edef.I3c98c1933eb639963bc3ffdef81a8788b59f2188@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Periodic FTM request attributes are defined based on the periodic
parameters used in EDCA-based ranging negotiation. However, non-EDCA
based ranging (trigger-based/non-trigger-based) does not include
periodic parameters in the negotiation protocol, even though upper
layers may still request periodic measurements.
Clarify the semantics of periodic ranging attributes when used with
non-EDCA based ranging.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260111190221.b89cb3f68e1a.I7a9d8c6d1c66c77f1b43120a841101c96c3f19ad@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add new capabilities to the PMSR FTM capabilities list. The new
capabilities include 6 GHz support, supported number of spatial streams
and supported number of LTF repetitions.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Tested-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260111190221.bf43785c18f6.Ic98cf9790ddee84bf88e5720b93c46c23af3c96c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add netns logic to vsock core. Additionally, modify transport hook
prototypes to be used by later transport-specific patches (e.g.,
*_seqpacket_allow()).
Namespaces are supported primarily by changing socket lookup functions
(e.g., vsock_find_connected_socket()) to take into account the socket
namespace and the namespace mode before considering a candidate socket a
"match".
This patch also introduces the sysctl /proc/sys/net/vsock/ns_mode to
report the mode and /proc/sys/net/vsock/child_ns_mode to set the mode
for new namespaces.
Add netns functionality (initialization, passing to transports, procfs,
etc...) to the af_vsock socket layer. Later patches that add netns
support to transports depend on this patch.
This patch changes the allocation of random ports for connectible vsocks
in order to avoid leaking the random port range starting point to other
namespaces.
dgram_allow(), stream_allow(), and seqpacket_allow() callbacks are
modified to take a vsk in order to perform logic on namespace modes. In
future patches, the net will also be used for socket
lookups in these functions.
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260121-vsock-vmtest-v16-1-2859a7512097@meta.com
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
1) Inline this small helper to reduce code size and decrease cpu costs.
2) Constify its argument.
3) Move it to include/net/netmem.h, as a prereq for the following patch.
$ scripts/bloat-o-meter -t vmlinux.2 vmlinux.3
add/remove: 0/2 grow/shrink: 0/4 up/down: 0/-158 (-158)
Function old new delta
validate_xmit_skb 866 857 -9
__pfx_net_is_devmem_iov 16 - -16
net_is_devmem_iov 22 - -22
get_netmem 152 130 -22
put_netmem 140 114 -26
tcp_recvmsg_locked 3860 3797 -63
Total: Before=22566015, After=22565857, chg -0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260122045720.1221017-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
I imagine (tm) that as the number of per-queue configuration
options grows some of them may conflict for certain drivers.
While the drivers can obviously do all the validation locally
doing so is fairly inconvenient as the config is fed to drivers
piecemeal via different ops (for different params and NIC-wide
vs per-queue).
Add a centralized callback for validating the queue config
in queue ops. The callback gets invoked before memory provider
is installed, and in the future should also be called when ring
params are modified.
The validation is done after each layer of configuration.
Since we can't fail MP un-binding we must make sure that
the config is valid both before and after MP overrides are
applied. This is moot for now since the set of MP and device
configs are disjoint. It will matter significantly in the future,
so adding it now so that we don't forget..
Link: https://patch.msgid.link/20260122005113.2476634-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We should follow the prepare/commit approach for queue configuration.
The qcfg struct should be added to dev->cfg rather than directly to
queue objects so that we can clone and discard the pending config
easily.
Remove the qcfg in struct netdev_rx_queue, and switch remaining callers
to netdev_queue_config(). netdev_queue_config() will construct the qcfg
on the fly based on device defaults and state of the queue.
ndo_default_qcfg becomes optional because having the callback itself
does not have any meaningful semantics to us.
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Link: https://patch.msgid.link/20260122005113.2476634-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We may choose to extend or reimplement the logic which renders
the per-queue config. The drivers should not poke directly into
the queue state. Add a helper for drivers to use when they want
to query the config for a specific queue.
Link: https://patch.msgid.link/20260122005113.2476634-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
GSO partial features for tunnels do not require any kind of support from
the underlying device: we can safely add them to the geneve UDP tunnel.
The only point of attention is the skb required features propagation in
the device xmit op: partial features must be stripped, except for
UDP_TUNNEL*.
Keep partial features disabled by default.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Link: https://patch.msgid.link/d851ca8e928cf05d68310bcbaeaa5e9e0b01e058.1769011015.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tcp_rate_check_app_limited() is used from tcp_sendmsg_locked()
fast path and from other callers.
Move it to tcp.c so that it can be inlined in tcp_sendmsg_locked().
Small increase of code, for better TCP performance.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/0 grow/shrink: 1/0 up/down: 87/0 (87)
Function old new delta
tcp_sendmsg_locked 4217 4304 +87
Total: Before=22566462, After=22566549, chg +0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Link: https://patch.msgid.link/20260121095923.3134639-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This function is called from one caller only, in TCP fast path.
Move it to tcp_input.c so that compiler can inline it.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/2 grow/shrink: 1/0 up/down: 226/-300 (-74)
Function old new delta
tcp_ack 5405 5631 +226
__pfx_tcp_rate_gen 16 - -16
tcp_rate_gen 284 - -284
Total: Before=22566536, After=22566462, chg -0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Link: https://patch.msgid.link/20260121095923.3134639-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The pipapo set backend is the only user of the .abort interface so far.
To speed up pipapo abort path, removals are skipped.
The follow up patch updates the rbtree to use to build an array of
ordered elements, then use binary search. This needs a new .abort
interface but, unlike pipapo, it also need to undo/remove elements.
Add a flag and use it from the pipapo set backend.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
- various small fixes for ath10k/ath12k/mwifiex/rsi
- cfg80211 fix for HE bitrate overflow
- mac80211 fixes
- S1G beacon handling in scan
- skb tailroom handling for HW encryption
- CSA fix for multi-link
- handling of disabled links during association
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Merge tag 'wireless-2026-11-22' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Another set of updates:
- various small fixes for ath10k/ath12k/mwifiex/rsi
- cfg80211 fix for HE bitrate overflow
- mac80211 fixes
- S1G beacon handling in scan
- skb tailroom handling for HW encryption
- CSA fix for multi-link
- handling of disabled links during association
* tag 'wireless-2026-11-22' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: cfg80211: ignore link disabled flag from userspace
wifi: mac80211: apply advertised TTLM from association response
wifi: mac80211: parse all TTLM entries
wifi: mac80211: don't increment crypto_tx_tailroom_needed_cnt twice
wifi: mac80211: don't perform DA check on S1G beacon
wifi: ath12k: Fix wrong P2P device link id issue
wifi: ath12k: fix dead lock while flushing management frames
wifi: ath12k: Fix scan state stuck in ABORTING after cancel_remain_on_channel
wifi: ath12k: cancel scan only on active scan vdev
wifi: mwifiex: Fix a loop in mwifiex_update_ampdu_rxwinsize()
wifi: mac80211: correctly check if CSA is active
wifi: cfg80211: Fix bitrate calculation overflow for HE rates
wifi: rsi: Fix memory corruption due to not set vif driver data size
wifi: ath12k: don't force radio frequency check in freq_to_idx()
wifi: ath12k: fix dma_free_coherent() pointer
wifi: ath10k: fix dma_free_coherent() pointer
====================
Link: https://patch.msgid.link/20260122110248.15450-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The rtnl lock might be locked, preventing ad_cond_set_peer_notif() from
acquiring the lock and updating send_peer_notif. This patch addresses
the issue by using a workqueue. Since updating send_peer_notif does
not require high real-time performance, such delayed updates are entirely
acceptable.
In fact, checking this value and using it in multiple places, all operations
are protected at the same time by rtnl lock, such as
- read send_peer_notif
- send_peer_notif--
- bond_should_notify_peers
By the way, rtnl lock is still required, when accessing bond.params.* for
updating send_peer_notif. In lacp mode, resetting send_peer_notif in
workqueue is safe, simple and effective way.
Additionally, this patch introduces bond_peer_notify_may_events(), which
is used to check whether an event should be sent. This function will be
used in both patch 1 and 2.
Cc: Jay Vosburgh <jv@jvosburgh.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Cc: Nikolay Aleksandrov <razor@blackwall.org>
Cc: Hangbin Liu <liuhangbin@gmail.com>
Cc: Jason Xing <kerneljasonxing@gmail.com>
Suggested-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Tonghao Zhang <tonghao@bamaicloud.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/f95accb5db0b10ce3ed2f834fc70f716c9abbb9c.1768709239.git.tonghao@bamaicloud.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'nf-next-26-01-20' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Florian Westphal says:
====================
Subject: netfilter: updates for net-next
1) Speed up nftables transactions after earlier transaction failed.
Due to a (harmeless) bug we remained in slow paranoia mode until
a successful transaction completes.
2) Allow generic tracker to resolve clashes, this avoids very rare
packet drops. From Yuto Hamaguchi.
3) Increase the cleanup budget to 64 entries in nf_conncount to reap
more entries in one go, from Fernando Fernandez Mancera.
4) Allow icmp trackers to resolve clashes, this avoids very rare
initial packet drop with test cases that have high-frequency pings.
After this all trackers except tcp and sctp allow clash resolution.
5) Disentangle netfilter headers, don't include nftables/xtables headers
in subsystems that are unrelated.
6) Don't rely on implicit includes coming from nf_conntrack_proto_gre.h.
7) Allow nfnetlink_queue nfq instance struct to get accounted via memcg,
from Scott Mitchell.
8) Reject bogus xt target/match data upfront via netlink policiy in
nft_compat interface rather than relying on x_tables API to do it.
9) Fix nf_conncount breakage when trying to limit loopback flows via
prerouting rule, from Fernando Fernandez Mancera.
This is a recent breakage but not seen as urgent enough to rush this
via net tree at this late stage in development cycle.
10) Fix a possible off-by-one when parsing tcp option in xtables tcpmss
match. Also handled via -next due to late stage in development
cycle.
* tag 'nf-next-26-01-20' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: xt_tcpmss: check remaining length before reading optlen
netfilter: nf_conncount: fix tracking of connections from localhost
netfilter: nft_compat: add more restrictions on netlink attributes
netfilter: nfnetlink_queue: nfqnl_instance GFP_ATOMIC -> GFP_KERNEL_ACCOUNT allocation
netfilter: nf_conntrack: don't rely on implicit includes
netfilter: don't include xt and nftables.h in unrelated subsystems
netfilter: nf_conntrack: enable icmp clash support
netfilter: nf_conncount: increase the connection clean up limit to 64
netfilter: nf_conntrack: Add allow_clash to generic protocol handler
netfilter: nf_tables: reset table validation state on abort
====================
Link: https://patch.msgid.link/20260120191803.22208-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
FDO/LTO are unable to inline tcp6_gro_receive() from ipv6_gro_receive()
Make sure tcp6_check_fraglist_gro() is only called only when needed,
so that compiler can leave it out-of-line.
$ scripts/bloat-o-meter -t vmlinux.1 vmlinux.2
add/remove: 2/0 grow/shrink: 3/1 up/down: 1123/-253 (870)
Function old new delta
ipv6_gro_receive 1069 1846 +777
tcp6_check_fraglist_gro - 272 +272
ipv6_offload_init 218 274 +56
__pfx_tcp6_check_fraglist_gro - 16 +16
ipv6_gro_complete 433 435 +2
tcp6_gro_receive 959 706 -253
Total: Before=22592662, After=22593532, chg +0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260120164903.1912995-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We can change tcp_rsk() and inet_rsk() to propagate their argument
const qualifier thanks to container_of_const().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260120125353.1470456-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tcp_rate_skb_delivered() is only called from tcp_input.c.
Move it there and make it static.
Both gcc and clang are (auto)inlining it, TCP performance
is increased at a small space cost.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/2 grow/shrink: 3/0 up/down: 509/-187 (322)
Function old new delta
tcp_sacktag_walk 1682 1867 +185
tcp_ack 5230 5405 +175
tcp_shifted_skb 437 586 +149
__pfx_tcp_rate_skb_delivered 16 - -16
tcp_rate_skb_delivered 171 - -171
Total: Before=22566192, After=22566514, chg +0.00%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Link: https://patch.msgid.link/20260118123204.2315993-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pavel Begunkov says:
====================
Add support for providers with large rx buffer
Many modern NICs support configurable receive buffer lengths, and zcrx and
memory providers can use buffers larger than 4K to improve performance.
When paired with hw-gro larger rx buffer sizes can drastically reduce
the number of buffers traversing the stack and save a lot of processing
time. It also allows to give to users larger contiguous chunks of data.
Single stream benchmarks showed up to ~30% CPU util improvement.
E.g. comparison for 4K vs 32K buffers using a 200Gbit NIC:
packets=23987040 (MB=2745098), rps=199559 (MB/s=22837)
CPU %usr %nice %sys %iowait %irq %soft %idle
0 1.53 0.00 27.78 2.72 1.31 66.45 0.22
packets=24078368 (MB=2755550), rps=200319 (MB/s=22924)
CPU %usr %nice %sys %iowait %irq %soft %idle
0 0.69 0.00 8.26 31.65 1.83 57.00 0.57
This series adds net infrastructure for memory providers configuring
the size and implements it for bnxt. It's an opt-in feature for drivers,
they should advertise support for the parameter in the qops and must check
if the hardware supports the given size. It's limited to memory providers
as it drastically simplifies implementation. It doesn't affect the fast
path zcrx uAPI, and the user exposed parameter is defined in zcrx terms,
which allows it to be flexible and adjusted in the future.
A liburing example can be found at [2]
full branch:
[1] https://github.com/isilence/linux.git zcrx/large-buffers-v8
Liburing example:
[2] https://github.com/isilence/liburing.git zcrx/rx-buf-len
* tag 'net-queue-rx-buf-len-v9' of https://github.com/isilence/linux:
io_uring/zcrx: document area chunking parameter
selftests: iou-zcrx: test large chunk sizes
eth: bnxt: support qcfg provided rx page size
eth: bnxt: adjust the fill level of agg queues with larger buffers
eth: bnxt: store rx buffer size per queue
net: pass queue rx page size from memory provider
net: add bare bone queue configs
net: reduce indent of struct netdev_queue_mgmt_ops members
net: memzero mp params when closing a queue
====================
Link: https://patch.msgid.link/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This reverts commit 77b9c4a438, reversing
changes made to 4515ec4ad58a37e70a9e1256c0b993958c9b7497:
931420a2fc ("selftests/net: Add netkit container tests")
ab771c938d ("selftests/net: Make NetDrvContEnv support queue leasing")
6be87fbb27 ("selftests/net: Add env for container based tests")
61d99ce3df ("selftests/net: Add bpf skb forwarding program")
920da36341 ("netkit: Add xsk support for af_xdp applications")
eef51113f8 ("netkit: Add netkit notifier to check for unregistering devices")
b5ef109d22 ("netkit: Implement rtnl_link_ops->alloc and ndo_queue_create")
b5c3fa4a0b ("netkit: Add single device mode for netkit")
0073d2fd67 ("xsk: Proxy pool management for leased queues")
1ecea95dd3 ("xsk: Extend xsk_rcv_check validation")
804bf334d0 ("net: Proxy netdev_queue_get_dma_dev for leased queues")
0caa9a8dde ("net: Proxy net_mp_{open,close}_rxq for leased queues")
ff8889ff91 ("net, ethtool: Disallow leased real rxqs to be resized")
9e2103f361 ("net: Add lease info to queue-get response")
31127dedde ("net: Implement netdev_nl_queue_create_doit")
a5546e18f7 ("net: Add queue-create operation")
The series will conflict with io_uring work, and the code needs more
polish.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
several netfilter compilation units rely on implicit includes
coming from nf_conntrack_proto_gre.h.
Clean this up and add the required dependencies where needed.
nf_conntrack.h requires net_generic() helper.
Place various gre/ppp/vlan includes to where they are needed.
Signed-off-by: Florian Westphal <fw@strlen.de>
After the optimization to only perform one GC per jiffy, a new problem
was introduced. If more than 8 new connections are tracked per jiffy the
list won't be cleaned up fast enough possibly reaching the limit
wrongly.
In order to prevent this issue, only skip the GC if it was already
triggered during the same jiffy and the increment is lower than the
clean up limit. In addition, increase the clean up limit to 64
connections to avoid triggering GC too often and do more effective GCs.
This has been tested using a HTTP server and several
performance tools while having nft_connlimit/xt_connlimit or OVS limit
configured.
Output of slowhttptest + OVS limit at 52000 connections:
slow HTTP test status on 340th second:
initializing: 0
pending: 432
connected: 51998
error: 0
closed: 0
service available: YES
Fixes: d265929930 ("netfilter: nf_conncount: reduce unnecessary GC")
Reported-by: Aleksandra Rukomoinikova <ARukomoinikova@k2.cloud>
Closes: https://lore.kernel.org/netfilter/b2064e7b-0776-4e14-adb6-c68080987471@k2.cloud/
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
When a process in a container wants to setup a memory provider, it will
use the virtual netdev and a leased rxq, and call net_mp_{open,close}_rxq
to try and restart the queue. At this point, proxy the queue restart on
the real rxq in the physical netdev.
For memory providers (io_uring zero-copy rx and devmem), it causes the
real rxq in the physical netdev to be filled from a memory provider that
has DMA mapped memory from a process within a container.
Signed-off-by: David Wei <dw@davidwei.uk>
Co-developed-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260115082603.219152-6-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Populate nested lease info to the queue-get response that returns the
ifindex, queue id with type and optionally netns id if the device
resides in a different netns.
Example with ynl client:
# ip a
[...]
4: enp10s0f0np0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 xdp/id:24 qdisc mq state UP group default qlen 1000
link/ether e8:eb:d3:a3:43:f6 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.2/24 scope global enp10s0f0np0
valid_lft forever preferred_lft forever
inet6 fe80::eaeb:d3ff:fea3:43f6/64 scope link proto kernel_ll
valid_lft forever preferred_lft forever
[...]
# ethtool -i enp10s0f0np0
driver: mlx5_core
[...]
# ./pyynl/cli.py \
--spec ~/netlink/specs/netdev.yaml \
--do queue-get \
--json '{"ifindex": 4, "id": 15, "type": "rx"}'
{'id': 15,
'ifindex': 4,
'lease': {'ifindex': 8, 'netns-id': 0, 'queue': {'id': 1, 'type': 'rx'}},
'napi-id': 8227,
'type': 'rx',
'xsk': {}}
# ip netns list
foo (id: 0)
# ip netns exec foo ip a
[...]
8: nk@NONE: <BROADCAST,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
inet6 fe80::200:ff:fe00:0/64 scope link proto kernel_ll
valid_lft forever preferred_lft forever
[...]
# ip netns exec foo ethtool -i nk
driver: netkit
[...]
# ip netns exec foo ls /sys/class/net/nk/queues/
rx-0 rx-1 tx-0
# ip netns exec foo ./pyynl/cli.py \
--spec ~/netlink/specs/netdev.yaml \
--do queue-get \
--json '{"ifindex": 8, "id": 1, "type": "rx"}'
{'id': 1, 'ifindex': 8, 'type': 'rx'}
Note that the caller of netdev_nl_queue_fill_one() holds the netdevice
lock. For the queue-get we do not lock both devices. When queues get
{un,}leased, both devices are locked, thus if __netif_get_rx_queue_peer()
returns true, the peer pointer points to a valid device. The netns-id
is fetched via peernet2id_alloc() similarly as done in OVS.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Co-developed-by: David Wei <dw@davidwei.uk>
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260115082603.219152-4-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Implement netdev_nl_queue_create_doit which creates a new rx queue in a
virtual netdev and then leases it to a rx queue in a physical netdev.
Example with ynl client:
# ./pyynl/cli.py \
--spec ~/netlink/specs/netdev.yaml \
--do queue-create \
--json '{"ifindex": 8, "type": "rx", "lease": {"ifindex": 4, "queue": {"type": "rx", "id": 15}}}'
{'id': 1}
Note that the netdevice locking order is always from the virtual to
the physical device.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Co-developed-by: David Wei <dw@davidwei.uk>
Signed-off-by: David Wei <dw@davidwei.uk>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20260115082603.219152-3-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When the AP has an advertised TID to Link Mapping (TTLM) it shall
include the element in the association response. As such, when this
element is present it needs to be used for the currently dormant links.
See Draft P802.11REVmf_D1.0 section 35.3.7.2.3 ("Negotiation of TTLM")
for the details. The flag is also not usable in case userspace wants to
specify a negotiated TTLM during association.
Note that for the link reconfiguration case, mac80211 did not use the
information. Draft P802.11REVmf_D1.0 states in section 35.3.6.4 ("Link
reconfiguration to the setup links) that we "shall operate with all the
TIDs mapped to the newly added links ..."
All this means that the flag is not needed. The implementation should
parse the information from the association response.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260118093904.754e057896a5.Ifd06f5ef839a93bfd54d0593dc932870f95f3242@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
