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Make ip_mc_validate_source() return drop reason, and adjust the call of
it in ip_route_input_mc().
Another caller of it is ip_rcv_finish_core->udp_v4_early_demux, and the
errno is not checked in detail, so we don't do more adjustment for it.
The drop reason "SKB_DROP_REASON_IP_LOCALNET" is added in this commit.
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In this commit, we make fib_validate_source() and __fib_validate_source()
return -reason instead of errno on error.
The return value of fib_validate_source can be -errno, 0, and 1. It's hard
to make fib_validate_source() return drop reasons directly.
The fib_validate_source() will return 1 if the scope of the source(revert)
route is HOST. And the __mkroute_input() will mark the skb with
IPSKB_DOREDIRECT in this case (combine with some other conditions). And
then, a REDIRECT ICMP will be sent in ip_forward() if this flag exists. We
can't pass this information to __mkroute_input if we make
fib_validate_source() return drop reasons.
Therefore, we introduce the wrapper fib_validate_source_reason() for
fib_validate_source(), which will return the drop reasons on error.
In the origin logic, LINUX_MIB_IPRPFILTER will be counted if
fib_validate_source() return -EXDEV. And now, we need to adjust it by
checking "reason == SKB_DROP_REASON_IP_RPFILTER". However, this will take
effect only after the patch "net: ip: make ip_route_input_noref() return
drop reasons", as we can't pass the drop reasons from
fib_validate_source() to ip_rcv_finish_core() in this patch.
Following new drop reasons are added in this patch:
SKB_DROP_REASON_IP_LOCAL_SOURCE
SKB_DROP_REASON_IP_INVALID_SOURCE
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The napi_suspend_irqs routine bootstraps irq suspension by elongating
the defer timeout to irq_suspend_timeout.
The napi_resume_irqs routine effectively cancels irq suspension by
forcing the napi to be scheduled immediately.
Signed-off-by: Martin Karsten <mkarsten@uwaterloo.ca>
Co-developed-by: Joe Damato <jdamato@fastly.com>
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Joe Damato <jdamato@fastly.com>
Tested-by: Martin Karsten <mkarsten@uwaterloo.ca>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Link: https://patch.msgid.link/20241109050245.191288-3-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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RTNL_FLAG_DOIT_PERNET_WIP.
Currently, rtnl_setlink() and rtnl_dellink() cannot be fully converted
to per-netns RTNL due to a lack of handling peer/lower/upper devices in
different netns.
For example, when we change a device in rtnl_setlink() and need to
propagate that to its upper devices, we want to avoid acquiring all netns
locks, for which we do not know the upper limit.
The same situation happens when we remove a device.
rtnl_dellink() could be transformed to remove a single device in the
requested netns and delegate other devices to per-netns work, and
rtnl_setlink() might be ?
Until we come up with a better idea, let's use a new flag
RTNL_FLAG_DOIT_PERNET_WIP for rtnl_dellink() and rtnl_setlink().
This will unblock converting RTNL users where such devices are not related.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241108004823.29419-11-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In ops->newlink(), veth, vxcan, and netkit call rtnl_link_get_net() with
a net pointer, which is the first argument of ->newlink().
rtnl_link_get_net() could return another netns based on IFLA_NET_NS_PID
and IFLA_NET_NS_FD in the peer device's attributes.
We want to get it and fill rtnl_nets->nets[] in advance in rtnl_newlink()
for per-netns RTNL.
All of the three get the peer netns in the same way:
1. Call rtnl_nla_parse_ifinfomsg()
2. Call ops->validate() (vxcan doesn't have)
3. Call rtnl_link_get_net_tb()
Let's add a new field peer_type to struct rtnl_link_ops and prefetch
netns in the peer ifla to add it to rtnl_nets in rtnl_newlink().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20241108004823.29419-6-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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link_ops is protected by link_ops_mutex and no longer needs RTNL,
so we have no reason to have __rtnl_link_register() separately.
Let's remove it and call rtnl_link_register() from ifb.ko and
dummy.ko.
Note that both modules' init() work on init_net only, so we need
not export pernet_ops_rwsem and can use rtnl_net_lock() there.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20241108004823.29419-4-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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rtnl_link_unregister() holds RTNL and calls synchronize_srcu(),
but rtnl_newlink() will acquire SRCU frist and then RTNL.
Then, we need to unlink ops and call synchronize_srcu() outside
of RTNL to avoid the deadlock.
rtnl_link_unregister() rtnl_newlink()
---- ----
lock(rtnl_mutex);
lock(&ops->srcu);
lock(rtnl_mutex);
sync(&ops->srcu);
Let's move as such and add a mutex to protect link_ops.
Now, link_ops is protected by its dedicated mutex and
rtnl_link_register() no longer needs to hold RTNL.
While at it, we move the initialisation of ops->dellink and
ops->srcu out of the mutex scope.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20241108004823.29419-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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rtnl_link_unregister() holds RTNL and calls __rtnl_link_unregister(),
where we call synchronize_srcu() to wait inflight RTM_NEWLINK requests
for per-netns RTNL.
We put synchronize_srcu() in __rtnl_link_unregister() due to ifb.ko
and dummy.ko.
However, rtnl_newlink() will acquire SRCU before RTNL later in this
series. Then, lockdep will detect the deadlock:
rtnl_link_unregister() rtnl_newlink()
---- ----
lock(rtnl_mutex);
lock(&ops->srcu);
lock(rtnl_mutex);
sync(&ops->srcu);
To avoid the problem, we must call synchronize_srcu() before RTNL in
rtnl_link_unregister().
As a preparation, let's remove __rtnl_link_unregister().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20241108004823.29419-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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There are quite a number of places that use patterns
such as
if (attr)
val = nla_get_u16(attr);
else
val = DEFAULT;
Add nla_get_u16_default() and friends like that to
not have to type this out all the time.
Acked-by: Toke Høiland-Jørgensen <toke@kernel.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241108114145.acd2aadb03ac.I3df6aac71d38a5baa1c0a03d0c7e82d4395c030e@changeid
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Create a mapping between a netdev and its neighoburs,
allowing for much cheaper flushes.
Signed-off-by: Gilad Naaman <gnaaman@drivenets.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20241107160444.2913124-7-gnaaman@drivenets.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Remove the now-unused neighbour::next pointer, leaving struct neighbour
solely with the hlist_node implementation.
Signed-off-by: Gilad Naaman <gnaaman@drivenets.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241107160444.2913124-6-gnaaman@drivenets.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Remove all usage of the bare neighbour::next pointer,
replacing them with neighbour::hash and its for_each macro.
Signed-off-by: Gilad Naaman <gnaaman@drivenets.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241107160444.2913124-5-gnaaman@drivenets.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Introduce neigh_for_each_in_bucket in neighbour.h, to help iterate over
the neighbour table more succinctly.
Signed-off-by: Gilad Naaman <gnaaman@drivenets.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241107160444.2913124-3-gnaaman@drivenets.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a doubly-linked node to neighbours, so that they
can be deleted without iterating the entire bucket they're in.
Signed-off-by: Gilad Naaman <gnaaman@drivenets.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241107160444.2913124-2-gnaaman@drivenets.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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MCTP control protocol implementations are transport binding dependent.
Endpoint discovery is mandatory based on transport binding.
Message timing requirements are specified in each respective transport
binding specification.
However, we currently have no means to get this information from MCTP
links.
Add a IFLA_MCTP_PHYS_BINDING netlink link attribute, which represents
the transport type using the DMTF DSP0239-defined type numbers, returned
as part of RTM_GETLINK data.
We get an IFLA_MCTP_PHYS_BINDING attribute for each MCTP link, for
example:
- 0x00 (unspec) for loopback interface;
- 0x01 (SMBus/I2C) for mctpi2c%d interfaces; and
- 0x05 (serial) for mctpserial%d interfaces.
Signed-off-by: Khang Nguyen <khangng@os.amperecomputing.com>
Reviewed-by: Matt Johnston <matt@codeconstruct.com.au>
Link: https://patch.msgid.link/20241105071915.821871-1-khangng@os.amperecomputing.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Convert the "tos" parameter of ip_route_output() to dscp_t. This way
we'll have a dscp_t value directly available when .flowi4_tos will
eventually be converted to dscp_t.
All ip_route_output() callers but one set this "tos" parameter to 0 and
therefore don't need to be adapted to the new prototype.
Only br_nf_pre_routing_finish() needs conversion. It can just use
ip4h_dscp() to get the DSCP field from the IPv4 header.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/0f10d031dd44c70aae9bc6e19391cb30d5c2fe71.1730928699.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR (net-6.12-rc7).
Conflicts:
drivers/net/ethernet/freescale/enetc/enetc_pf.c
e15c5506dd39 ("net: enetc: allocate vf_state during PF probes")
3774409fd4c6 ("net: enetc: build enetc_pf_common.c as a separate module")
https://lore.kernel.org/20241105114100.118bd35e@canb.auug.org.au
Adjacent changes:
drivers/net/ethernet/ti/am65-cpsw-nuss.c
de794169cf17 ("net: ethernet: ti: am65-cpsw: Fix multi queue Rx on J7")
4a7b2ba94a59 ("net: ethernet: ti: am65-cpsw: Use tstats instead of open coded version")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following series contains Netfilter updates for net-next:
1) Make legacy xtables configs user selectable, from Breno Leitao.
2) Fix a few sparse warnings related to percpu, from Uros Bizjak.
3) Use strscpy_pad, from Justin Stitt.
4) Use nft_trans_elem_alloc() in catchall flush, from Florian Westphal.
5) A series of 7 patches to fix false positive with CONFIG_RCU_LIST=y.
Florian also sees possible issue with 10 while module load/removal
when requesting an expression that is available via module. As for
patch 11, object is being updated so reference on the module already
exists so I don't see any real issue.
Florian says:
"Unfortunately there are many more errors, and not all are false positives.
First patches pass lockdep_commit_lock_is_held() to the rcu list traversal
macro so that those splats are avoided.
The last two patches are real code change as opposed to
'pass the transaction mutex to relax rcu check':
Those two lists are not protected by transaction mutex so could be altered
in parallel.
This targets nf-next because these are long-standing issues."
netfilter pull request 24-11-07
* tag 'nf-next-24-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: nf_tables: must hold rcu read lock while iterating object type list
netfilter: nf_tables: must hold rcu read lock while iterating expression type list
netfilter: nf_tables: avoid false-positive lockdep splats with basechain hook
netfilter: nf_tables: avoid false-positive lockdep splats in set walker
netfilter: nf_tables: avoid false-positive lockdep splats with flowtables
netfilter: nf_tables: avoid false-positive lockdep splats with sets
netfilter: nf_tables: avoid false-positive lockdep splat on rule deletion
netfilter: nf_tables: prefer nft_trans_elem_alloc helper
netfilter: nf_tables: replace deprecated strncpy with strscpy_pad
netfilter: nf_tables: Fix percpu address space issues in nf_tables_api.c
netfilter: Make legacy configs user selectable
====================
Link: https://patch.msgid.link/20241106234625.168468-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The transaction mutex prevents concurrent add/delete, its ok to iterate
those lists outside of rcu read side critical sections.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add a 20-byte field ats to struct nfc_target and expose it as
NFC_ATTR_TARGET_ATS via the netlink interface. The payload contains
'historical bytes' that help to distinguish cards from one another.
The information is commonly used to assemble an emulated ATR similar
to that reported by smart cards with contacts.
Add a 20-byte field target_ats to struct nci_dev to hold the payload
obtained in nci_rf_intf_activated_ntf_packet() and copy it to over to
nfc_target.ats in nci_activate_target(). The approach is similar
to the handling of 'general bytes' within ATR_RES.
Replace the hard-coded size of rats_res within struct
activation_params_nfca_poll_iso_dep by the equal constant NFC_ATS_MAXSIZE
now defined in nfc.h
Within NCI, the information corresponds to the 'RATS Response' activation
parameter that omits the initial length byte TL. This loses no
information and is consistent with our handling of SENSB_RES that
also drops the first (constant) byte.
Tested with nxp_nci_i2c on a few type A targets including an
ICAO 9303 compliant passport.
I refrain from the corresponding change to digital_in_recv_ats()
to have the few drivers based on digital.h fill nfc_target.ats,
as I have no way to test it. That class of drivers appear not to set
NFC_ATTR_TARGET_SENSB_RES either. Consider a separate patch to propagate
(all) the parameters.
Signed-off-by: Juraj Šarinay <juraj@sarinay.com>
Link: https://patch.msgid.link/20241103124525.8392-1-juraj@sarinay.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2024-10-31
We've added 13 non-merge commits during the last 16 day(s) which contain
a total of 16 files changed, 710 insertions(+), 668 deletions(-).
The main changes are:
1) Optimize and homogenize bpf_csum_diff helper for all archs and also
add a batch of new BPF selftests for it, from Puranjay Mohan.
2) Rewrite and migrate the test_tcp_check_syncookie.sh BPF selftest
into test_progs so that it can be run in BPF CI, from Alexis Lothoré.
3) Two BPF sockmap selftest fixes, from Zijian Zhang.
4) Small XDP synproxy BPF selftest cleanup to remove IP_DF check,
from Vincent Li.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
selftests/bpf: Add a selftest for bpf_csum_diff()
selftests/bpf: Don't mask result of bpf_csum_diff() in test_verifier
bpf: bpf_csum_diff: Optimize and homogenize for all archs
net: checksum: Move from32to16() to generic header
selftests/bpf: remove xdp_synproxy IP_DF check
selftests/bpf: remove test_tcp_check_syncookie
selftests/bpf: test MSS value returned with bpf_tcp_gen_syncookie
selftests/bpf: add ipv4 and dual ipv4/ipv6 support in btf_skc_cls_ingress
selftests/bpf: get rid of global vars in btf_skc_cls_ingress
selftests/bpf: add missing ns cleanups in btf_skc_cls_ingress
selftests/bpf: factorize conn and syncookies tests in a single runner
selftests/bpf: Fix txmsg_redir of test_txmsg_pull in test_sockmap
selftests/bpf: Fix msg_verify_data in test_sockmap
====================
Link: https://patch.msgid.link/20241031221543.108853-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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from32to16() is used by lib/checksum.c and also by
arch/parisc/lib/checksum.c. The next patch will use it in the
bpf_csum_diff helper.
Move from32to16() to the include/net/checksum.h as csum_from32to16() and
remove other implementations.
Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20241026125339.26459-2-puranjay@kernel.org
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Under CONFIG_PROVE_RCU_LIST + CONFIG_RCU_EXPERT
hlist_for_each_entry_rcu() provides very helpful splats, which help
to find possible issues. I missed CONFIG_RCU_EXPERT=y in my testing
config the same as described in
a3e4bf7f9675 ("configs/debug: make sure PROVE_RCU_LIST=y takes effect").
The fix itself is trivial: add the very same lockdep annotations
as were used to dereference ao_info from the socket.
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20241028152645.35a8be66@kernel.org/
Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://patch.msgid.link/20241030-tcp-ao-hlist-lockdep-annotate-v1-1-bf641a64d7c6@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Similarly to NLA_POLICY_MIN_LEN, NLA_POLICY_MAX_LEN defines a policy
with a maximum length value.
The netlink generator for YAML specs has been extended accordingly.
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20241029-b4-ovpn-v11-1-de4698c73a25@openvpn.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add documentation of doi_remove field to Kernel doc for struct netlbl_calipso_ops.
Flagged by ./scripts/kernel-doc -none.
Signed-off-by: George Guo <guodongtai@kylinos.cn>
Acked-by: Paul Moore <paul@paul-moore.com>
Link: https://patch.msgid.link/20241028123435.3495916-1-dongtai.guo@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR (net-6.12-rc6).
Conflicts:
drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
cbe84e9ad5e2 ("wifi: iwlwifi: mvm: really send iwl_txpower_constraints_cmd")
188a1bf89432 ("wifi: mac80211: re-order assigning channel in activate links")
https://lore.kernel.org/all/20241028123621.7bbb131b@canb.auug.org.au/
net/mac80211/cfg.c
c4382d5ca1af ("wifi: mac80211: update the right link for tx power")
8dd0498983ee ("wifi: mac80211: Fix setting txpower with emulate_chanctx")
drivers/net/ethernet/intel/ice/ice_ptp_hw.h
6e58c3310622 ("ice: fix crash on probe for DPLL enabled E810 LOM")
e4291b64e118 ("ice: Align E810T GPIO to other products")
ebb2693f8fbd ("ice: Read SDP section from NVM for pin definitions")
ac532f4f4251 ("ice: Cleanup unused declarations")
https://lore.kernel.org/all/20241030120524.1ee1af18@canb.auug.org.au/
No adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Background: switchdev ports offload the Linux bridge, and most of the
packets they handle will never see the CPU. The ports between which
there exists no hardware data path are considered 'foreign' to switchdev.
These can either be normal physical NICs without switchdev offload, or
incompatible switchdev ports, or virtual interfaces like veth/dummy/etc.
In some cases, an offloaded filter can only do half the work, and the
rest must be handled by software. Redirecting/mirroring from the ingress
of a switchdev port towards a foreign interface is one example of
combined hardware/software data path. The most that the switchdev port
can do is to extract the matching packets from its offloaded data path
and send them to the CPU. From there on, the software filter runs
(a second time, after the first run in hardware) on the packet and
performs the mirred action.
It makes sense for switchdev drivers which allow this kind of "half
offloading" to sense the "skip_sw" flag of the filter/action pair, and
deny attempts from the user to install a filter that does not run in
software, because that simply won't work.
In fact, a mirred action on a switchdev port towards a dummy interface
appears to be a valid way of (selectively) monitoring offloaded traffic
that flows through it. IFF_PROMISC was also discussed years ago, but
(despite initial disagreement) there seems to be consensus that this
flag should not affect the destination taken by packets, but merely
whether or not the NIC discards packets with unknown MAC DA for local
processing.
[1] https://lore.kernel.org/netdev/20190830092637.7f83d162@ceranb/
[2] https://lore.kernel.org/netdev/20191002233750.13566-1-olteanv@gmail.com/
Suggested-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/netdev/ZxUo0Dc0M5Y6l9qF@shredder.mtl.com/
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20241023135251.1752488-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add two fields to print in the helper which here covers tcp_send_loss_probe().
Link: https://lore.kernel.org/all/5632e043-bdba-4d75-bc7e-bf58014492fd@redhat.com/
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Cc: Neal Cardwell <ncardwell@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Following the commit c8770db2d544 ("tcp: check skb is non-NULL
in tcp_rto_delta_us()"), we decided to add a helper so that it's
easier to get verbose warning on either cases.
Link: https://lore.kernel.org/all/5632e043-bdba-4d75-bc7e-bf58014492fd@redhat.com/
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Cc: Neal Cardwell <ncardwell@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v6.13
The first -next "new features" pull request for v6.13. This is a big
one as we have not been able to send one earlier. We have also some
patches affecting other subsystems: in staging we deleted the rtl8192e
driver and in debugfs added a new interface to save struct
file_operations memory; both were acked by GregKH.
Because of the lib80211/libipw move there were quite a lot of
conflicts and to solve those we decided to merge net-next into
wireless-next.
Major changes:
cfg80211/mac80211
* stop exporting wext symbols
* new mac80211 op to indicate that a new interface is to be added
* support radio separation of multi-band devices
Wireless Extensions
* move wext spy implementation to libiw
* remove iw_public_data from struct net_device
brcmfmac
* optional LPO clock support
ipw2x00
* move remaining lib80211 code into libiw
wilc1000
* WILC3000 support
rtw89
* RTL8852BE and RTL8852BE-VT BT-coexistence improvements
* tag 'wireless-next-2024-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (126 commits)
mac80211: Remove NOP call to ieee80211_hw_config
wifi: iwlwifi: work around -Wenum-compare-conditional warning
wifi: mac80211: re-order assigning channel in activate links
wifi: mac80211: convert debugfs files to short fops
debugfs: add small file operations for most files
wifi: mac80211: remove misleading j_0 construction parts
wifi: mac80211_hwsim: use hrtimer_active()
wifi: mac80211: refactor BW limitation check for CSA parsing
wifi: mac80211: filter on monitor interfaces based on configured channel
wifi: mac80211: refactor ieee80211_rx_monitor
wifi: mac80211: add support for the monitor SKIP_TX flag
wifi: cfg80211: add monitor SKIP_TX flag
wifi: mac80211: add flag to opt out of virtual monitor support
wifi: cfg80211: pass net_device to .set_monitor_channel
wifi: mac80211: remove status->ampdu_delimiter_crc
wifi: cfg80211: report per wiphy radio antenna mask
wifi: mac80211: use vif radio mask to limit creating chanctx
wifi: mac80211: use vif radio mask to limit ibss scan frequencies
wifi: cfg80211: add option for vif allowed radios
wifi: iwlwifi: allow IWL_FW_CHECK() with just a string
...
====================
Link: https://patch.msgid.link/20241025170705.5F6B2C4CEC3@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This can be used to indicate that the user is not interested in receiving
locally sent packets on the monitor interface.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/f0c20f832eadd36c71fba9a2a16ba57d78389b6c.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This is useful for multi-radio devices that are capable of monitoring on
multiple channels simultanenously. When this flag is set, each monitor
interface is passed to the driver individually and can have a configured
channel.
The vif mac address for non-active monitor interfaces is cleared, in order
to allow the driver to tell them apart from active ones.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/3c55505ee0cf0a5f141fbcb30d1e8be8d9f40373.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Preparation for allowing multiple monitor interfaces with different channels
on a multi-radio wiphy.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/35fa652dbfebf93343f8b9a08fdef0467a2a02dc.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This was never used by any driver, so remove it to free up some space.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/e6fee6eed49b105261830db1c74f13841fb9616c.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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With multi-radio devices, each radio typically gets a fixed set of antennas.
In order to be able to disable specific antennas for some radios, user space
needs to know which antenna mask bits are assigned to which radio.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/e0a26afa2c88eaa188ec96ec6d17ecac4e827641.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This allows users to prevent a vif from affecting radios other than the
configured ones. This can be useful in cases where e.g. an AP is running
on one radio, and triggering a scan on another radio should not disturb it.
Changing the allowed radios list for a vif is supported, but only while
it is down.
While it is possible to achieve the same by always explicitly specifying
a frequency list for scan requests and ensuring that the wrong channel/band
is never accidentally set on an unrelated interface, this change makes
multi-radio wiphy setups a lot easier to deal with for CLI users.
By itself, this patch only enforces the radio mask for scanning requests
and remain-on-channel. Follow-up changes build on this to limit configured
frequencies.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/eefcb218780f71a1549875d149f1196486762756.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Drivers might need to also do this calculation, no point in
them duplicating the code. Since it's so simple, just make
it an inline.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.af003cb4a088.I8b5d29504b726caae24af6013c65b3daebe842a2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In order to update the right link information, call the update
rate_control_rate_update() with the right link_sta, and then
pass that through to the driver's sta_rc_update() method. The
software rate control still doesn't support it, but that'll be
skipped by not having a rate control ref.
Since it now operates on a link sta, rename the driver method.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.5851b6b5fd41.Ibdf50d96afa4b761dd9b9dfd54a1147e77a75329@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Drivers may need to track this. Make it available for them, and maintain
the value when beacons are received.
When link X receives a beacon, iterate the RNR elements and update all
the links with their respective data.
Track the link id that updated the data so that each link can know
whether the update came from its own beacon or from another link.
In case, the update came from the link's own beacon, always update the
updater link id.
The purpose is to let the low level driver know if a link is losing its
beacons. If link X is losing its beacons, it can still track the
bss_param_ch_cnt and know where the update came from.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.e2d8d1a722ad.I04b883daba2cd48e5730659eb62ca1614c899cbb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The name is misleading, this actually indicates that
ieee80211_chanctx_conf::min_def was updated.
Rename it to IEEE80211_CHANCTX_CHANGE_MIN_DEF.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.726b5f12ae0c.I3bd9e594c9d2735183ec049a4c7224bd0a9599c9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In practice, userspace hasn't been able to set this for many
years, and mac80211 has already rejected it (which is now no
longer needed), so reject SMPS mode (other than "OFF" to be
a bit more compatible) in AP mode. Also remove the parameter
from the AP settings struct.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.fe1fc46484cf.I8676fb52b818a4bedeb9c25b901e1396277ffc0b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add support to indicate to the driver that an interface is about to be
added so that the driver could prepare its resources early if it needs
so.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.e0e8563e1c30.Ifccc96a46a347eb15752caefc9f4eff31f75ed47@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The wireless-next tree was based on something older, and there
are now conflicts between -rc2 and work here. Merge net-next,
which has enough of -rc2 for the conflicts to happen, resolving
them in the process.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Revert this, I neglected to take into account the fact that
cfg80211 itself can be a module, but wext is always builtin.
Fixes: aee809aaa2d1 ("wifi: cfg80211: unexport wireless_nlevent_flush()")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There's no need for "future" extensions in an internal
struct, and we don't need a u32 for flags, use just a
u8. Also remove the unused IW_DESCR_FLAG_WAIT flag.
Link: https://patch.msgid.link/20241007220003.309bd52fa763.I9a1229fa7f2be53d4f50e63671ed441d0968bb41@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This no longer needs to be exported, so don't export it.
Link: https://patch.msgid.link/20241007214715.3dd736dc3ac0.I1388536e99c37f28a007dd753c473ad21513d9a9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Given the previous patches, we no longer need the
struct iw_public_data etc., it's only used by the
old Intel drivers (and ps3_gelic creates it but
then doesn't use it). Remove all of that, including
the pointer in struct net_device.
Link: https://patch.msgid.link/20241007213525.8b2d52b60531.I6a27aaf30bded9a0977f07f47fba2bd31a3b3330@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There's no driver left using this other than ipw2200,
so move the data bookkeeping and code into libipw.
Link: https://patch.msgid.link/20241007210254.037d864cda7d.Ib2197cb056ff05746d3521a5fba637062acb7314@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There's already much code in libipw that used to be shared
with more drivers, but now with the prior cleanups, those old
Intel ipw2x00 drivers are also the only ones using whatever is
now left of lib80211. Move lib80211 entirely into libipw.
Link: https://patch.msgid.link/20241007202707.915ef7b9e7c7.Ib9876d2fe3c90f11d6df458b16d0b7d4bf551a8d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Remove unused devlink_resource_register(); all the drivers use
devl_resource_register() variant instead.
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/20241023131248.27192-8-przemyslaw.kitszel@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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