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Merge tag 'nf-next-25-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following batch contains Netfilter updates for net-next:
0) Add sanity check for maximum encapsulations in bridge vlan,
reported by the new AI robot.
1) Move the flowtable path discovery code to its own file, the
nft_flow_offload.c mixes the nf_tables evaluation with the path
discovery logic, just split this in two for clarity.
2) Consolidate flowtable xmit path by using dev_queue_xmit() and the
real device behind the layer 2 vlan/pppoe device. This allows to
inline encapsulation. After this update, hw_ifidx can be removed
since both ifidx and hw_ifidx now point to the same device.
3) Support for IPIP encapsulation in the flowtable, extend selftest
to cover for this new layer 3 offload, from Lorenzo Bianconi.
4) Push down the skb into the conncount API to fix duplicates in the
conncount list for packets with non-confirmed conntrack entries,
this is due to an optimization introduced in d265929930
("netfilter: nf_conncount: reduce unnecessary GC").
From Fernando Fernandez Mancera.
5) In conncount, disable BH when performing garbage collection
to consolidate existing behaviour in the conncount API, also
from Fernando.
6) A matching packet with a confirmed conntrack invokes GC if
conncount reaches the limit in an attempt to release slots.
This allows the existing extensions to be used for real conntrack
counting, not just limiting new connections, from Fernando.
7) Support for updating ct count objects in nf_tables, from Fernando.
8) Extend nft_flowtables.sh selftest to send IPv6 TCP traffic,
from Lorenzo Bianconi.
9) Fixes for UAPI kernel-doc documentation, from Randy Dunlap.
* tag 'nf-next-25-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: nf_tables: improve UAPI kernel-doc comments
netfilter: ip6t_srh: fix UAPI kernel-doc comments format
selftests: netfilter: nft_flowtable.sh: Add the capability to send IPv6 TCP traffic
netfilter: nft_connlimit: add support to object update operation
netfilter: nft_connlimit: update the count if add was skipped
netfilter: nf_conncount: make nf_conncount_gc_list() to disable BH
netfilter: nf_conncount: rework API to use sk_buff directly
selftests: netfilter: nft_flowtable.sh: Add IPIP flowtable selftest
netfilter: flowtable: Add IPIP tx sw acceleration
netfilter: flowtable: Add IPIP rx sw acceleration
netfilter: flowtable: use tuple address to calculate next hop
netfilter: flowtable: remove hw_ifidx
netfilter: flowtable: inline pppoe encapsulation in xmit path
netfilter: flowtable: inline vlan encapsulation in xmit path
netfilter: flowtable: consolidate xmit path
netfilter: flowtable: move path discovery infrastructure to its own file
netfilter: flowtable: check for maximum number of encapsulations in bridge vlan
====================
Link: https://patch.msgid.link/20251128002345.29378-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- mt76:
- WED support for >32-bit DMA
- airoha NPU support
- regdomain improvements
- continued WiFi7/MLO work
- rtw89
- support USB devices RTL8852AU and RTL8852CU
- initial work for RTL8922DE
- improved injection support
- rtl8xxxu: 40 MHz connection fixes/support
- brcmfmac: Acer A1 840 tablet quirk
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Merge tag 'wireless-next-2025-11-27' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
Apart from the usual small things just driver updates:
- mt76:
- WED support for >32-bit DMA
- airoha NPU support
- regdomain improvements
- continued WiFi7/MLO work
- rtw89
- support USB devices RTL8852AU and RTL8852CU
- initial work for RTL8922DE
- improved injection support
- rtl8xxxu: 40 MHz connection fixes/support
- brcmfmac: Acer A1 840 tablet quirk
* tag 'wireless-next-2025-11-27' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (152 commits)
wifi: mac80211: allow sharing identical chanctx for S1G interfaces
wifi: nl80211: vendor-cmd: intel: fix a blank kernel-doc line warning
wifi: cfg80211: include s1g_primary_2mhz when comparing chandefs
wifi: cfg80211: include s1g_primary_2mhz when sending chandef
wifi: ieee80211: correct FILS status codes
mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()
wifi: mt76: mt792x: fix wifi init fail by setting MCU_RUNNING after CLC load
wifi: mt76: Strip whitespace from build ddate
wifi: mt76: mt7996: Add missing locking in mt7996_mac_sta_rc_work()
wifi: mt76: mt7996: skip ieee80211_iter_keys() on scanning link remove
wifi: mt76: mt7996: skip deflink accounting for offchannel links
wifi: mt76: Move mt76_abort_scan out of mt76_reset_device()
wifi: mt76: mt7996: move mt7996_update_beacons under mt76 mutex
wifi: mt76: mt7996: grab mt76 mutex in mt7996_mac_sta_event()
wifi: mt76: mt7925: ensure the 6GHz A-MPDU density cap from the hardware.
wifi: mt76: mt7996: fix EMI rings for RRO
wifi: mt76: mt7996: fix using wrong phy to start in mt7996_mac_restart()
wifi: mt76: mt7996: fix MLO set key and group key issues
wifi: mt76: mt7996: fix MLD group index assignment
wifi: mt76: mt7996: use correct link_id when filling TXD and TXP
...
====================
Link: https://patch.msgid.link/20251127103806.17776-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This 0x88C3 is registered to Infineon Technologies Corporate Research ST
and are used by MaxLinear.
Infineon made a spin off called Lantiq.
Lantiq was acquired by Intel
MaxLinear acquired Intels Connected Home division.
The product FAQ from MaxLinear describes it's history from the F24S.
The driver for the gsw1xx is based on Lantiq showing it's similarities.
Ref https://standards-oui.ieee.org/ethertype/eth.txt
Signed-off-by: Peter Enderborg <Peter.Enderborg@axis.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Convert all the legacy code directly accessing the pp fields in net_iov
to access them through @desc in net_iov.
Signed-off-by: Byungchul Park <byungchul@sk.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In include/uapi/linux/netfilter/nf_tables.h,
correct the kernel-doc comments for mistyped enum names and enum values to
avoid these kernel-doc warnings and improve the documentation:
nf_tables.h:896: warning: Enum value 'NFT_EXTHDR_OP_TCPOPT' not described
in enum 'nft_exthdr_op'
nf_tables.h:896: warning: Excess enum value 'NFT_EXTHDR_OP_TCP' description
in 'nft_exthdr_op'
nf_tables.h:1210: warning: expecting prototype for enum
nft_flow_attributes. Prototype was for enum nft_offload_attributes instead
nf_tables.h:1428: warning: expecting prototype for enum nft_reject_code.
Prototype was for enum nft_reject_inet_code instead
(add beginning '@' to each enum value description:)
nf_tables.h:1493: warning: Enum value 'NFTA_TPROXY_FAMILY' not described
in enum 'nft_tproxy_attributes'
nf_tables.h:1493: warning: Enum value 'NFTA_TPROXY_REG_ADDR' not described
in enum 'nft_tproxy_attributes'
nf_tables.h:1493: warning: Enum value 'NFTA_TPROXY_REG_PORT' not described
in enum 'nft_tproxy_attributes'
nf_tables.h:1796: warning: expecting prototype for enum
nft_device_attributes. Prototype was for enum
nft_devices_attributes instead
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fix the kernel-doc format for struct members to be "@member" instead of
"@ member" to avoid kernel-doc warnings.
Warning: ip6t_srh.h:60 struct member 'next_hdr' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'hdr_len' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'segs_left' not described
in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'last_entry' not described
in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'tag' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'mt_flags' not described in 'ip6t_srh'
Warning: ip6t_srh.h:60 struct member 'mt_invflags' not described
in 'ip6t_srh'
Warning: ip6t_srh.h:93 struct member 'next_hdr' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'hdr_len' not described in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'segs_left' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'last_entry' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'tag' not described in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'psid_addr' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'nsid_addr' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'lsid_addr' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'psid_msk' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'nsid_msk' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'lsid_msk' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'mt_flags' not described
in 'ip6t_srh1'
Warning: ip6t_srh.h:93 struct member 'mt_invflags' not described
in 'ip6t_srh1'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
When using nf_conncount infrastructure for non-confirmed connections a
duplicated track is possible due to an optimization introduced since
commit d265929930 ("netfilter: nf_conncount: reduce unnecessary GC").
In order to fix this introduce a new conncount API that receives
directly an sk_buff struct. It fetches the tuple and zone and the
corresponding ct from it. It comes with both existing conncount variants
nf_conncount_count_skb() and nf_conncount_add_skb(). In addition remove
the old API and adjust all the users to use the new one.
This way, for each sk_buff struct it is possible to check if there is a
ct present and already confirmed. If so, skip the add operation.
Fixes: d265929930 ("netfilter: nf_conncount: reduce unnecessary GC")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Introduce sw acceleration for rx path of IPIP tunnels relying on the
netfilter flowtable infrastructure. Subsequent patches will add sw
acceleration for IPIP tunnels tx path.
This series introduces basic infrastructure to accelerate other tunnel
types (e.g. IP6IP6).
IPIP rx sw acceleration can be tested running the following scenario where
the traffic is forwarded between two NICs (eth0 and eth1) and an IPIP
tunnel is used to access a remote site (using eth1 as the underlay device):
ETH0 -- TUN0 <==> ETH1 -- [IP network] -- TUN1 (192.168.100.2)
$ip addr show
6: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:00:22:33:11:55 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.2/24 scope global eth0
valid_lft forever preferred_lft forever
7: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:11:22:33:11:55 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.1/24 scope global eth1
valid_lft forever preferred_lft forever
8: tun0@NONE: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1480 qdisc noqueue state UNKNOWN group default qlen 1000
link/ipip 192.168.1.1 peer 192.168.1.2
inet 192.168.100.1/24 scope global tun0
valid_lft forever preferred_lft forever
$ip route show
default via 192.168.100.2 dev tun0
192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.2
192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.1
192.168.100.0/24 dev tun0 proto kernel scope link src 192.168.100.1
$nft list ruleset
table inet filter {
flowtable ft {
hook ingress priority filter
devices = { eth0, eth1 }
}
chain forward {
type filter hook forward priority filter; policy accept;
meta l4proto { tcp, udp } flow add @ft
}
}
Reproducing the scenario described above using veths I got the following
results:
- TCP stream received from the IPIP tunnel:
- net-next: (baseline) ~ 71Gbps
- net-next + IPIP flowtbale support: ~101Gbps
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
hw_ifidx was originally introduced to store the real netdevice as a
requirement for the hardware offload support in:
73f97025a9 ("netfilter: nft_flow_offload: use direct xmit if hardware offload is enabled")
Since ("netfilter: flowtable: consolidate xmit path"), ifidx and
hw_ifidx points to the real device in the xmit path, remove it.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Use dev_queue_xmit() for the XMIT_NEIGH case. Store the interface index
of the real device behind the vlan/pppoe device, this introduces an
extra lookup for the real device in the xmit path because rt->dst.dev
provides the vlan/pppoe device.
XMIT_NEIGH now looks more similar to XMIT_DIRECT but the check for stale
dst and the neighbour lookup still remain in place which is convenient
to deal with network topology changes.
Note that nft_flow_route() needs to relax the check for _XMIT_NEIGH so
the existing basic xfrm offload (which only works in one direction) does
not break.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This file contains the path discovery that is run from the forward chain
for the packet offloading the flow into the flowtable. This consists
of a series of calls to dev_fill_forward_path() for each device stack.
More topologies may be supported in the future, so move this code to its
own file to separate it from the nftables flow_offload expression.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
regressions.
Current release - regressions:
- mptcp: initialize rcv_mss before calling tcp_send_active_reset()
- eth: mlx5e: fix validation logic in rate limiting
Previous releases - regressions:
- xsk: avoid data corruption on cq descriptor number
- bluetooth:
- prevent race in socket write iter and sock bind
- fix not generating mackey and ltk when repairing
- can:
- kvaser_usb: fix potential infinite loop in command parsers
- rcar_canfd: fix CAN-FD mode as default
- eth: veth: reduce XDP no_direct return section to fix race
- eth: virtio-net: avoid unnecessary checksum calculation on guest RX
Previous releases - always broken:
- sched: fix TCF_LAYER_TRANSPORT handling in tcf_get_base_ptr()
- bluetooth: mediatek: fix kernel crash when releasing iso interface
- vhost: rewind next_avail_head while discarding descriptors
- eth: r8169: fix RTL8127 hang on suspend/shutdown
- eth: aquantia: add missing descriptor cache invalidation on ATL2
- dsa: microchip: fix resource releases in error path
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth and CAN. No known outstanding
regressions.
Current release - regressions:
- mptcp: initialize rcv_mss before calling tcp_send_active_reset()
- eth: mlx5e: fix validation logic in rate limiting
Previous releases - regressions:
- xsk: avoid data corruption on cq descriptor number
- bluetooth:
- prevent race in socket write iter and sock bind
- fix not generating mackey and ltk when repairing
- can:
- kvaser_usb: fix potential infinite loop in command parsers
- rcar_canfd: fix CAN-FD mode as default
- eth:
- veth: reduce XDP no_direct return section to fix race
- virtio-net: avoid unnecessary checksum calculation on guest RX
Previous releases - always broken:
- sched: fix TCF_LAYER_TRANSPORT handling in tcf_get_base_ptr()
- bluetooth: mediatek: fix kernel crash when releasing iso interface
- vhost: rewind next_avail_head while discarding descriptors
- eth:
- r8169: fix RTL8127 hang on suspend/shutdown
- aquantia: add missing descriptor cache invalidation on ATL2
- dsa: microchip: fix resource releases in error path"
* tag 'net-6.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
mptcp: Initialise rcv_mss before calling tcp_send_active_reset() in mptcp_do_fastclose().
net: fec: do not register PPS event for PEROUT
net: fec: do not allow enabling PPS and PEROUT simultaneously
net: fec: do not update PEROUT if it is enabled
net: fec: cancel perout_timer when PEROUT is disabled
net: mctp: unconditionally set skb->dev on dst output
net: atlantic: fix fragment overflow handling in RX path
MAINTAINERS: separate VIRTIO NET DRIVER and add netdev
virtio-net: avoid unnecessary checksum calculation on guest RX
eth: fbnic: Fix counter roll-over issue
mptcp: clear scheduled subflows on retransmit
net: dsa: sja1105: fix SGMII linking at 10M or 100M but not passing traffic
s390/net: list Aswin Karuvally as maintainer
net: wwan: mhi: Keep modem name match with Foxconn T99W640
vhost: rewind next_avail_head while discarding descriptors
net/sched: em_canid: fix uninit-value in em_canid_match
can: rcar_canfd: Fix CAN-FD mode as default
xsk: avoid data corruption on cq descriptor number
r8169: fix RTL8127 hang on suspend/shutdown
net: sxgbe: fix potential NULL dereference in sxgbe_rx()
...
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Merge tag 'linux-can-next-for-6.19-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2025-11-26
this is a pull request of 27 patches for net-next/main.
The first 17 patches are by Vincent Mailhol and Oliver Hartkopp and
add CAN XL support to the CAN netlink interface.
Geert Uytterhoeven and Biju Das provide 7 patches for the rcar_canfd
driver to add suspend/resume support.
The next 2 patches are by Markus Schneider-Pargmann and add them as
the m_can maintainer.
Conor Dooley's patch updates the mpfs-can DT bindungs.
linux-can-next-for-6.19-20251126
* tag 'linux-can-next-for-6.19-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (27 commits)
dt-bindings: can: mpfs: document resets
MAINTAINERS: Simplify m_can section
MAINTAINERS: Add myself as m_can maintainer
can: rcar_canfd: Add suspend/resume support
can: rcar_canfd: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
can: rcar_canfd: Invert CAN clock and close_candev() order
can: rcar_canfd: Extract rcar_canfd_global_{,de}init()
can: rcar_canfd: Use devm_clk_get_optional() for RAM clk
can: rcar_canfd: Invert global vs. channel teardown
can: rcar_canfd: Invert reset assert order
can: dev: print bitrate error with two decimal digits
can: raw: instantly reject unsupported CAN frames
can: add dummy_can driver
can: calc_bittiming: add can_calc_sample_point_pwm()
can: calc_bittiming: add can_calc_sample_point_nrz()
can: calc_bittiming: replace misleading "nominal" by "reference"
can: netlink: add PWM netlink interface
can: calc_bittiming: add PWM calculation
can: bittiming: add PWM validation
can: bittiming: add PWM parameters
...
====================
Link: https://patch.msgid.link/20251126120106.154635-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The fbnic driver is planning to make use of the XPCS driver to enable
support for PCS and better integration with phylink. To do this though we
will need to enable several workarounds since the PMD interface for fbnic
is likely to be unique since it is a mix of two different vendor products
with a unique wrapper around the IP.
I have generated a PHY identifier based on IEEE 802.3-2022 22.2.4.3.1 using
an OUI belonging to Meta Platforms and used with our NICs. Using this we
will provide it as the PMD ID via the SW based MDIO interface so that
the fbnic device can be identified and necessary workarounds enabled in the
XPCS driver.
As an initial workaround this change adds an exception so that soft_reset
is not set when the driver is initially bound to the PCS.
In addition I have added logic to integrate the PMD Rx signal detect state
into the link state for the PCS. With this we can avoid the link coming up
too soon on the FBNIC PMD and as a result of it being in the training state
so we can avoid link flaps.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374321695.959489.6648161125012056619.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The XPCS driver was mangling the PMA identifier as the original code
appears to have been focused on just capturing the OUI. Rather than store a
mangled ID it is better to work with the actual PMA ID and instead just
mask out the values that don't apply rather than shifting them and
reordering them as you still don't get the original OUI for the NIC without
having to bitswap the values as per the definition of the layout in IEEE
802.3-2022 22.2.4.3.1.
By laying it out as it was in the hardware it is also less likely for us to
have an unintentional collision as the enum values will occupy the revision
number area while the OUI occupies the upper 22 bits.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374320920.959489.17267159479370601070.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
With this change we are adding support for 25G, 50G, and 100G interface
types to the XPCS driver. This had supposedly been enabled with the
addition of XLGMII but I don't see any capability for configuration there
so I suspect it may need to be refactored in the future.
With this change we can enable the XPCS driver with the selected interface
and it should be able to detect link, speed, and report the link status to
the phylink interface.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374320248.959489.11649590675011158859.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The 2.5G and 5G values are not consistent between the PCS CTRL1 and PMA
CTRL1 values. In order to avoid confusion between the two I am updating the
values to include "PMA" in the name similar to values used in similar
places.
To avoid breaking UAPI I have retained the original macros and just defined
them as the new PMA based defines.
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374319569.959489.6610469879021800710.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Commit a2fb4bc4e2 ("net: implement virtio helpers to handle UDP
GSO tunneling.") inadvertently altered checksum offload behavior
for guests not using UDP GSO tunneling.
Before, tun_put_user called tun_vnet_hdr_from_skb, which passed
has_data_valid = true to virtio_net_hdr_from_skb.
After, tun_put_user began calling tun_vnet_hdr_tnl_from_skb instead,
which passes has_data_valid = false into both call sites.
This caused virtio hdr flags to not include VIRTIO_NET_HDR_F_DATA_VALID
for SKBs where skb->ip_summed == CHECKSUM_UNNECESSARY. As a result,
guests are forced to recalculate checksums unnecessarily.
Restore the previous behavior by ensuring has_data_valid = true is
passed in the !tnl_gso_type case, but only from tun side, as
virtio_net_hdr_tnl_from_skb() is used also by the virtio_net driver,
which in turn must not use VIRTIO_NET_HDR_F_DATA_VALID on tx.
cc: stable@vger.kernel.org
Fixes: a2fb4bc4e2 ("net: implement virtio helpers to handle UDP GSO tunneling.")
Signed-off-by: Jon Kohler <jon@nutanix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://patch.msgid.link/20251125222754.1737443-1-jon@nutanix.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
PHY devices had lack of hwtstamp_get callback even though most of them
are tracking configuration info. Introduce new call back to
mii_timestamper.
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251124181151.277256-3-vadim.fedorenko@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
PHY devices has hwtstamp callback which actually performs set operation.
Rename it to better reflect the action.
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251124181151.277256-2-vadim.fedorenko@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When the TMS is switched on, the node uses PWM (Pulse Width
Modulation) during the data phase instead of the classic NRZ (Non
Return to Zero) encoding.
PWM is configured by three parameters:
- PWMS: Pulse Width Modulation Short phase
- PWML: Pulse Width Modulation Long phase
- PWMO: Pulse Width Modulation Offset time
For each of these parameters, define three IFLA symbols:
- IFLA_CAN_PWM_PWM*_MIN: the minimum allowed value.
- IFLA_CAN_PWM_PWM*_MAX: the maximum allowed value.
- IFLA_CAN_PWM_PWM*: the runtime value.
This results in a total of nine IFLA symbols which are all nested in a
parent IFLA_CAN_XL_PWM symbol.
IFLA_CAN_PWM_PWM*_MIN and IFLA_CAN_PWM_PWM*_MAX define the range of
allowed values and will match the value statically configured by the
device in struct can_pwm_const.
IFLA_CAN_PWM_PWM* match the runtime values stored in struct can_pwm.
Those parameters may only be configured when the tms mode is on. If
the PWMS, PWML and PWMO parameters are provided, check that all the
needed parameters are present using can_validate_pwm(), then check
their value using can_validate_pwm_bittiming(). PWMO defaults to zero
if omitted. Otherwise, if CAN_CTRLMODE_XL_TMS is true but none of the
PWM parameters are provided, calculate them using can_calc_pwm().
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-11-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Perform the PWM calculation according to CiA recommendations.
Note that for databitrates greater than 5 MBPS, tqmin is less than
CAN_PWM_NS_MAX (which is defined to 200 nano seconds), consequently,
the result of the division:
DIV_ROUND_UP(xl_ns, CAN_PWM_NS_MAX)
is one and thus the for loop automatically stops on the first
iteration giving a single PWM symbol per bit as expected. Because of
that, there is no actual need for a separate conditional branch for
when the databitrate is greater than 5 MBPS.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-10-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add can_validate_pwm() to validate the values pwms, pwml and pwml.
Error messages are added to each of the checks to inform the user on
what went wrong. Refer to those error messages to understand the
validation logic.
The boundary values CAN_PWM_DECODE_NS (the transceiver minimum
decoding margin) and CAN_PWM_NS_MAX (the maximum PWM symbol duration)
are hardcoded for the moment. Note that a transceiver capable of
bitrates higher than 20 Mbps may be able to handle a CAN_PWM_DECODE_NS
below 5 ns. If such transceivers become commercially available, this
code could be revisited to make this parameter configurable. For now,
leave it static.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-9-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
In CAN XL, higher data bit rates require the CAN transceiver to switch
its operation mode to use Pulse-Width Modulation (PWM) transmission
mode instead of the classic dominant/recessive transmission mode.
The PWM parameters are:
- PWMS: pulse width modulation short phase
- PWML: pulse width modulation long phase
- PWMO: pulse width modulation offset
CiA 612-2 specifies PWMS and PWML to be at least 1 (arguably, PWML
shall be at least 2 to respect the PWMS < PWML rule). PWMO's minimum
is expected to always be zero. It is added more for consistency than
anything else.
Add struct can_pwm_const so that the different devices can provide
their minimum and maximum values.
When TMS is on, the runtime PWMS, PWML and PWMO are needed (either
calculated or provided by the user): add struct can_pwm to store
these.
TDC and PWM can not be used at the same time (TDC can only be used
when TMS is off and PWM only when TMS is on). struct can_pwm is thus
put together with struct can_tdc inside a union to save some space.
The netlink logic will be added in an upcoming change.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-8-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The error-signalling (ES) is a mandatory functionality for CAN CC and
CAN FD to report CAN frame format violations by sending an error-frame
signal on the bus.
A so-called 'mixed-mode' is intended to have (XL-tolerant) CAN FD nodes
and CAN XL nodes on one CAN segment, where the FD-controllers can talk
CC/FD and the XL-controllers can talk CC/FD/XL. This mixed-mode
utilizes the error-signalling for sending CC/FD/XL frames.
The CANXL-only mode disables the error-signalling in the CAN XL
controller. This mode does not allow CC/FD frames to be sent but
additionally offers a CAN XL transceiver mode switching (TMS).
Configured with CAN_CTRLMODE_FD and CAN_CTRLMODE_XL this leads to:
FD=0 XL=0 CC-only mode (ES=1)
FD=1 XL=0 FD/CC mixed-mode (ES=1)
FD=1 XL=1 XL/FD/CC mixed-mode (ES=1)
FD=0 XL=1 XL-only mode (ES=0, TMS optional)
The helper function can_dev_in_xl_only_mode() determines the required
value to disable error signalling in the CAN XL controller.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-7-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The Transceiver Mode Switching (TMS) indicates whether the CAN XL
controller shall use the PWM or NRZ encoding during the data phase.
The term "transceiver mode switching" is used in both ISO 11898-1 and
CiA 612-2 (although only the latter one uses the abbreviation TMS). We
adopt the same naming convention here for consistency.
Add the CAN_CTRLMODE_XL_TMS flag to the list of the CAN control modes.
Add can_validate_xl_flags() to check the coherency of the TMS flag.
That function will be reused in upcoming changes to validate the other
CAN XL flags.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-6-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
CAN XL uses bittiming parameters different from Classical CAN and CAN
FD. Thus, all the data bittiming parameters, including TDC, need to be
duplicated for CAN XL.
Add the CAN XL netlink interface for all the features which are common
with CAN FD. Any new CAN XL specific features are added later on.
The first time CAN XL is activated, the MTU is set by default to
CANXL_MAX_MTU. The user may then configure a custom MTU within the
CANXL_MIN_MTU to CANXL_MAX_MTU range, in which case, the custom MTU
value will be kept as long as CAN XL remains active.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-5-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
ISO 11898-1:2024 adds a new restricted operation mode. This mode is
added as a mandatory feature for nodes which support CAN XL and is
retrofitted as optional for legacy nodes (i.e. the ones which only
support Classical CAN and CAN FD).
The restricted operation mode is nearly the same as the listen only
mode: the node can not send data frames or remote frames and can not
send dominant bits if an error occurs. The only exception is that the
node shall still send the acknowledgment bit. A second niche exception
is that the node may still send a data frame containing a time
reference message if the node is a primary time provider, but because
the time provider feature is not yet implemented in the kernel, this
second exception is not relevant to us at the moment.
Add the CAN_CTRLMODE_RESTRICTED control mode flag and update the
can_dev_dropped_skb() helper function accordingly.
Finally, bail out if both CAN_CTRLMODE_LISTENONLY and
CAN_CTRLMODE_RESTRICTED are provided.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-4-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Currently, the CAN FD skb validation logic is based on the MTU: the
interface is deemed FD capable if and only if its MTU is greater or
equal to CANFD_MTU.
This logic is showing its limit with the introduction of CAN XL. For
example, consider the two scenarios below:
1. An interface configured with CAN FD on and CAN XL on
2. An interface configured with CAN FD off and CAN XL on
In those two scenarios, the interfaces would have the same MTU:
CANXL_MTU
making it impossible to differentiate which one has CAN FD turned on
and which one has it off.
Because of the limitation, the only non-UAPI-breaking workaround is to
do the check at the device level using the can_priv->ctrlmode flags.
Unfortunately, the virtual interfaces (vcan, vxcan), which do not have
a can_priv, are left behind.
Add a check on the CAN_CTRLMODE_FD flag in can_dev_dropped_skb() and
drop FD frames whenever the feature is turned off.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-3-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
When CONFIG_CAN_CALC_BITTIMING is disabled, the can_calc_bittiming()
functions can not be used and the user needs to provide all the
bittiming parameters.
Currently, can_calc_bittiming() prints an error message to the kernel
log. Instead use NL_SET_ERR_MSG() to make it return the error message
through the netlink interface so that the user can directly see it.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-2-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Now sk->sk_timer is no longer used by TCP keepalive, we can use
its storage for TCP and MPTCP retransmit timers for better
cache locality.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124175013.1473655-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
sk->sk_timer has been used for TCP keepalives.
Keepalive timers are not in fast path, we want to use sk->sk_timer
storage for retransmit timers, for better cache locality.
Create icsk->icsk_keepalive_timer and change keepalive
code to no longer use sk->sk_timer.
Added space is reclaimed in the following patch.
This includes changes to MPTCP, which was also using sk_timer.
Alias icsk->mptcp_tout_timer and icsk->icsk_keepalive_timer
for inet_sk_diag_fill() sake.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124175013.1473655-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
These two fields are mostly read in TCP tx path, move them
in an more appropriate group for better cache locality.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124175013.1473655-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of sk->tcp_timeout_timer introduction,
rename icsk_timeout() helper and change its argument to plain
'const struct sock *sk'.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251124175013.1473655-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a comment on regeneration to the generated files.
The comment is placed after the YNL-GEN line[1], as to not interfere
with ynl-regen.sh's detection logic.
[1] and after the optional YNL-ARG line.
Link: https://lore.kernel.org/r/aR5m174O7pklKrMR@zx2c4.com/
Suggested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251120174429.390574-3-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Some qdisc like cake, codel, fq_codel might drop packets
in their dequeue() method.
This is currently problematic because dequeue() runs with
the qdisc spinlock held. Freeing skbs can be extremely expensive.
Add qdisc_dequeue_drop() method and a new TCQ_F_DEQUEUE_DROPS
so that these qdiscs can opt-in to defer the skb frees
after the socket spinlock is released.
TCQ_F_DEQUEUE_DROPS is an attempt to not penalize other qdiscs
with an extra cache line miss.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20251121083256.674562-14-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Using kfree_skb_list_reason() to free list of skbs from qdisc
operations seems wrong as each skb might have a different drop reason.
Cleanup __dev_xmit_skb() to call tcf_kfree_skb_list() once
in preparation of the following patch.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20251121083256.674562-13-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Avoid up to two cache line misses in qdisc dequeue() to fetch
skb_shinfo(skb)->gso_segs/gso_size while qdisc spinlock is held.
This gives a 5 % improvement in a TX intensive workload.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20251121083256.674562-6-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add a new u16 field, next to pkt_len : pkt_segs
This will cache shinfo->gso_segs to speed up qdisc deqeue().
Move slave_dev_queue_mapping at the end of qdisc_skb_cb,
and move three bits from tc_skb_cb :
- post_ct
- post_ct_snat
- post_ct_dnat
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20251121083256.674562-2-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Revert commit 7a8c994cbb ("ACPI: processor: idle: Optimize ACPI idle
driver registration") because it is reported to introduce a cpuidle
regression leading to a kernel crash on a platform using the ACPI idle
driver.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-by: Borislav Petkov <bp@alien8.de>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Closes: https://lore.kernel.org/lkml/20251124200019.GIaSS5U9HhsWBotrQZ@fat_crate.local/
Revert commit 5020d05b34 ("ACPI: processor: Remove unused empty stubs
of some functions") because it depends on a problematic one.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Revert commit bdf780fbce ("ACPI: processor: idle: Rearrange declarations
in header file") because it depends on a problematic one.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Revert commit fbd401e95e ("ACPI: processor: idle: Redefine two
functions as void") because it depends on a problematic one.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Revert commit 559f2eacc8 ACPI: processor: Do not expose global variable
acpi_idle_driver" because it depends on a problematic one.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Delete an empty line prevent a kernel-doc warning:
Warning: ../include/uapi/linux/nl80211-vnd-intel.h:86 bad line:
Fixes: 3d2a2544ea ("nl80211: vendor-cmd: add Intel vendor commands for iwlmei usage")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20251125022834.3171742-1-rdunlap@infradead.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The FILS status codes are set to 108/109, but the IEEE 802.11-2020
spec defines them as 112/113. Update the enum so it matches the
specification and keeps the kernel consistent with standard values.
Fixes: a3caf7440d ("cfg80211: Add support for FILS shared key authentication offload")
Signed-off-by: Ria Thomas <ria.thomas@morsemicro.com>
Reviewed-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Link: https://patch.msgid.link/20251124125637.3936154-1-ria.thomas@morsemicro.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
