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2025-05-21netlink: specs: tc: drop the family name prefix from attrsJakub Kicinski1-167/+167
All attribute sets and messages are prefixed with tc-. The C codegen also adds the family name to all structs. We end up with names like struct tc_tc_act_attrs. Remove the tc- prefixes to shorten the names. This should not impact Python as the attr set names are never exposed to user, they are only used to refer to things internally, in the encoder / decoder. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250520161916.413298-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21netlink: specs: tc: add C naming infoJakub Kicinski1-0/+95
Add naming info needed by C code gen. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250520161916.413298-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21netlink: specs: tc: use tc-gact instead of tc-gen as struct nameJakub Kicinski1-3/+3
There is a define in the uAPI header called tc_gen which expands to the "generic" TC action fields. This helps other actions include the base fields without having to deal with nested structs. A couple of actions (sample, gact) do not define extra fields, so the spec used a common tc-gen struct for both of them. Unfortunately this struct does not exist in C. Let's use gact's (generic act's) struct for basic actions. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250520161916.413298-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21netlink: specs: tc: remove duplicate nestsJakub Kicinski1-74/+4
tc-act-stats-attrs and tca-stats-attrs are almost identical. The only difference is that the latter has sub-message decoding for app, rather than declaring it as a binary attr. tc-act-police-attrs and tc-police-attrs are identical but for the TODO annotations. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250520161916.413298-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-21tools: ynl-gen: add makefile deps for neighJakub Kicinski2-3/+4
Kory is reporting build issues after recent additions to YNL if the system headers are old. Link: https://lore.kernel.org/20250519164949.597d6e92@kmaincent-XPS-13-7390 Reported-by: Kory Maincent <kory.maincent@bootlin.com> Fixes: 0939a418b3b0 ("tools: ynl: submsg: reverse parse / error reporting") Tested-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20250520161916.413298-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: airoha: ppe: Disable packet keepaliveLorenzo Bianconi1-0/+1
Since netfilter flowtable entries are now refreshed by flow-stats polling, we can disable hw packet keepalive used to periodically send packets belonging to offloaded flows to the kernel in order to refresh flowtable entries. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-3-06d5fbf28984@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: airoha: Add FLOW_CLS_STATS callback supportLorenzo Bianconi6-20/+354
Introduce per-flow stats accounting to the flowtable hw offload in the airoha_eth driver. Flow stats are split in the PPE and NPU modules: - PPE: accounts for high 32bit of per-flow stats - NPU: accounts for low 32bit of per-flow stats FLOW_CLS_STATS can be enabled or disabled at compile time. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-2-06d5fbf28984@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: airoha: npu: Move memory allocation in airoha_npu_send_msg() callerLorenzo Bianconi1-54/+72
Move ppe_mbox_data struct memory allocation from airoha_npu_send_msg routine to the caller one. This is a preliminary patch to enable wlan NPU offloading and flow counter stats support. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-1-06d5fbf28984@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20ipv6: Revert two per-cpu var allocation for RTM_NEWROUTE.Kuniyuki Iwashima2-37/+7
These two commits preallocated two per-cpu variables in ip6_route_info_create() as fib_nh_common_init() and fib6_nh_init() were expected to be called under RCU. * commit d27b9c40dbd6 ("ipv6: Preallocate nhc_pcpu_rth_output in ip6_route_info_create().") * commit 5720a328c3e9 ("ipv6: Preallocate rt->fib6_nh->rt6i_pcpu in ip6_route_info_create().") Now these functions can be called without RCU and can use GFP_KERNEL. Let's revert the commits. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250516022759.44392-8-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20ipv6: Pass gfp_flags down to ip6_route_info_create_nh().Kuniyuki Iwashima1-4/+5
Since commit c4837b9853e5 ("ipv6: Split ip6_route_info_create()."), ip6_route_info_create_nh() uses GFP_ATOMIC as it was expected to be called under RCU. Now, we can call it without RCU and use GFP_KERNEL. Let's pass gfp_flags to ip6_route_info_create_nh(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250516022759.44392-7-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20Revert "ipv6: Factorise ip6_route_multipath_add()."Kuniyuki Iwashima1-123/+70
Commit 71c0efb6d12f ("ipv6: Factorise ip6_route_multipath_add().") split a loop in ip6_route_multipath_add() so that we can put rcu_read_lock() between ip6_route_info_create() and ip6_route_info_create_nh(). We no longer need to do so as ip6_route_info_create_nh() does not require RCU now. Let's revert the commit to simplify the code. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250516022759.44392-6-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20Revert "ipv6: sr: switch to GFP_ATOMIC flag to allocate memory during seg6local LWT setup"Kuniyuki Iwashima1-3/+3
The previous patch fixed the same issue mentioned in commit 14a0087e7236 ("ipv6: sr: switch to GFP_ATOMIC flag to allocate memory during seg6local LWT setup"). Let's revert it. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it> Link: https://patch.msgid.link/20250516022759.44392-5-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20ipv6: Narrow down RCU critical section in inet6_rtm_newroute().Kuniyuki Iwashima2-15/+25
Commit 169fd62799e8 ("ipv6: Get rid of RTNL for SIOCADDRT and RTM_NEWROUTE.") added rcu_read_lock() covering ip6_route_info_create_nh() and __ip6_ins_rt() to guarantee that nexthop and netdev will not go away. However, as reported by syzkaller [0], ip_tun_build_state() calls dst_cache_init() with GFP_KERNEL during the RCU critical section. ip6_route_info_create_nh() fetches nexthop or netdev depending on whether RTA_NH_ID is set, and struct fib6_info holds a refcount of either of them by nexthop_get() or netdev_get_by_index(). netdev_get_by_index() looks up a dev and calls dev_hold() under RCU. So, we need RCU only around nexthop_find_by_id() and nexthop_get() ( and a few more nexthop code). Let's add rcu_read_lock() there and remove rcu_read_lock() in ip6_route_add() and ip6_route_multipath_add(). Now these functions called from fib6_add() need RCU: - inet6_rt_notify() - fib6_drop_pcpu_from() (via fib6_purge_rt()) - rt6_flush_exceptions() (via fib6_purge_rt()) - ip6_ignore_linkdown() (via rt6_multipath_rebalance()) All callers of inet6_rt_notify() need RCU, so rcu_read_lock() is added there. [0]: [ BUG: Invalid wait context ] 6.15.0-rc4-syzkaller-00746-g836b313a14a3 #0 Tainted: G W ---------------------------- syz-executor234/5832 is trying to lock: ffffffff8e021688 (pcpu_alloc_mutex){+.+.}-{4:4}, at: pcpu_alloc_noprof+0x284/0x16b0 mm/percpu.c:1782 other info that might help us debug this: context-{5:5} 1 lock held by syz-executor234/5832: 0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] 0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] 0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: ip6_route_add+0x4d/0x2f0 net/ipv6/route.c:3913 stack backtrace: CPU: 0 UID: 0 PID: 5832 Comm: syz-executor234 Tainted: G W 6.15.0-rc4-syzkaller-00746-g836b313a14a3 #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 Call Trace: <TASK> dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_lock_invalid_wait_context kernel/locking/lockdep.c:4831 [inline] check_wait_context kernel/locking/lockdep.c:4903 [inline] __lock_acquire+0xbcf/0xd20 kernel/locking/lockdep.c:5185 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x182/0xe80 kernel/locking/mutex.c:746 pcpu_alloc_noprof+0x284/0x16b0 mm/percpu.c:1782 dst_cache_init+0x37/0xc0 net/core/dst_cache.c:145 ip_tun_build_state+0x193/0x6b0 net/ipv4/ip_tunnel_core.c:687 lwtunnel_build_state+0x381/0x4c0 net/core/lwtunnel.c:137 fib_nh_common_init+0x129/0x460 net/ipv4/fib_semantics.c:635 fib6_nh_init+0x15e4/0x2030 net/ipv6/route.c:3669 ip6_route_info_create_nh+0x139/0x870 net/ipv6/route.c:3866 ip6_route_add+0xf6/0x2f0 net/ipv6/route.c:3915 inet6_rtm_newroute+0x284/0x1c50 net/ipv6/route.c:5732 rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6955 netlink_rcv_skb+0x219/0x490 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x758/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:727 ____sys_sendmsg+0x505/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 Fixes: 169fd62799e8 ("ipv6: Get rid of RTNL for SIOCADDRT and RTM_NEWROUTE.") Reported-by: syzbot+bcc12d6799364500fbec@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=bcc12d6799364500fbec Reported-by: Eric Dumazet <edumazet@google.com> Closes: https://lore.kernel.org/netdev/CANn89i+r1cGacVC_6n3-A-WSkAa_Nr+pmxJ7Gt+oP-P9by2aGw@mail.gmail.com/ Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250516022759.44392-4-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20inet: Remove rtnl_is_held arg of lwtunnel_valid_encap_type(_attr)?().Kuniyuki Iwashima5-28/+13
Commit f130a0cc1b4f ("inet: fix lwtunnel_valid_encap_type() lock imbalance") added the rtnl_is_held argument as a temporary fix while I'm converting nexthop and IPv6 routing table to per-netns RTNL or RCU. Now all callers of lwtunnel_valid_encap_type() do not hold RTNL. Let's remove the argument. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250516022759.44392-3-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20ipv6: Remove rcu_read_lock() in fib6_get_table().Kuniyuki Iwashima1-12/+10
Once allocated, the IPv6 routing table is not freed until netns is dismantled. fib6_get_table() uses rcu_read_lock() while iterating net->ipv6.fib_table_hash[], but it's not needed and rather confusing. Because some callers have this pattern, table = fib6_get_table(); rcu_read_lock(); /* ... use table here ... */ rcu_read_unlock(); [ See: addrconf_get_prefix_route(), ip6_route_del(), rt6_get_route_info(), rt6_get_dflt_router() ] and this looks illegal but is actually safe. Let's remove rcu_read_lock() in fib6_get_table() and pass true to the last argument of hlist_for_each_entry_rcu() to bypass the RCU check. Note that protection is not needed but RCU helper is used to avoid data-race. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250516022759.44392-2-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: bcmgenet: expose more stats in ethtoolZak Kemble2-3/+34
Expose more per-queue and overall stats in ethtool Signed-off-by: Zak Kemble <zakkemble@gmail.com> Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250519113257.1031-4-zakkemble@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: bcmgenet: count hw discarded packets in missed statZak Kemble2-2/+5
Hardware discarded packets are now counted in their own missed stat instead of being lumped in with general errors. Signed-off-by: Zak Kemble <zakkemble@gmail.com> Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250519113257.1031-3-zakkemble@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: bcmgenet: switch to use 64bit statisticsZak Kemble2-88/+187
Update the driver to use ndo_get_stats64, rtnl_link_stats64 and u64_stats_t counters for statistics. Signed-off-by: Zak Kemble <zakkemble@gmail.com> Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250519113257.1031-2-zakkemble@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: phy: fixed_phy: constify status argument where possibleHeiner Kallweit2-7/+7
Constify the passed struct fixed_phy_status *status where possible. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/d1764b62-8538-408b-a4e3-b63715481a38@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: phy: fixed_phy: remove irq argument from fixed_phy_registerHeiner Kallweit8-15/+13
All callers pass PHY_POLL, therefore remove irq argument from fixed_phy_register(). Note: I keep the irq argument in fixed_phy_add_gpiod() for now, for the case that somebody may want to use a GPIO interrupt in the future, by e.g. adding a call to fwnode_irq_get() to fixed_phy_get_gpiod(). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/31cdb232-a5e9-4997-a285-cb9a7d208124@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: phy: fixed_phy: remove irq argument from fixed_phy_addHeiner Kallweit4-8/+6
All callers pass PHY_POLL, therefore remove irq argument from fixed_phy_add(). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Acked-by: Greg Ungerer <gerg@linux-m68k.org> Link: https://patch.msgid.link/b3b9b3bc-c310-4a54-b376-c909c83575de@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: let lockdep compare instance locksJakub Kicinski1-8/+7
AFAIU always returning -1 from lockdep's compare function basically disables checking of dependencies between given locks. Try to be a little more precise about what guarantees that instance locks won't deadlock. Right now we only nest them under protection of rtnl_lock. Mostly in unregister_netdevice_many() and dev_close_many(). Acked-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250517200810.466531-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20selftests: net: Fix spellingsSumanth Gavini1-2/+2
Fix "withouth" to "without" Fix "instaces" to "instances" Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it> Link: https://patch.msgid.link/20250517032535.1176351-1-sumanth.gavini@yahoo.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20selftests: nci: Fix "Electrnoics" to "Electronics"Sumanth Gavini1-1/+1
Fix misspelling reported by codespell Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250517020003.1159640-1-sumanth.gavini@yahoo.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20selftests: net: validate team flags propagationStanislav Fomichev5-2/+93
Cover three recent cases: 1. missing ops locking for the lowers during netdev_sync_lower_features 2. missing locking for dev_set_promiscuity (plus netdev_ops_assert_locked with a comment on why/when it's needed) 3. rcu lock during team_change_rx_flags Verified that each one triggers when the respective fix is reverted. Not sure about the placement, but since it all relies on teaming, added to the teaming directory. One ugly bit is that I add NETIF_F_LRO to netdevsim; there is no way to trigger netdev_sync_lower_features without it. Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com> Link: https://patch.msgid.link/20250516232205.539266-1-stfomichev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20eth: fbnic: Replace kzalloc/fbnic_fw_init_cmpl with fbnic_fw_alloc_cmplLee Trager4-15/+16
Replace the pattern of calling and validating kzalloc then fbnic_fw_init_cmpl with a single function, fbnic_fw_alloc_cmpl. Signed-off-by: Lee Trager <lee@trager.us> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20250516164804.741348-1-lee@trager.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: phy: mediatek: add driver for built-in 2.5G ethernet PHY on MT7988Sky Huang4-0/+334
Add support for internal 2.5Gphy on MT7988. This driver will load necessary firmware and add appropriate time delay to make sure that firmware works stably. The firmware loading procedure takes about 11ms in this driver. Signed-off-by: Sky Huang <skylake.huang@mediatek.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250516102327.2014531-3-SkyLake.Huang@mediatek.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: phy: mediatek: Sort config and file names in Kconfig and MakefileSky Huang2-4/+4
Sort config and file names in Kconfig and Makefile in drivers/net/phy/mediatek/ in alphabetical order. Signed-off-by: Sky Huang <skylake.huang@mediatek.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250516102327.2014531-2-SkyLake.Huang@mediatek.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20sctp: Do not wake readers in __sctp_write_space()Petr Malat1-1/+2
Function __sctp_write_space() doesn't set poll key, which leads to ep_poll_callback() waking up all waiters, not only these waiting for the socket being writable. Set the key properly using wake_up_interruptible_poll(), which is preferred over the sync variant, as writers are not woken up before at least half of the queue is available. Also, TCP does the same. Signed-off-by: Petr Malat <oss@malat.biz> Acked-by: Xin Long <lucien.xin@gmail.com> Link: https://patch.msgid.link/20250516081727.1361451-1-oss@malat.biz Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: phy: realtek: add RTL8127-internal PHYChunHao Lin1-0/+2
RTL8127-internal PHY is RTL8261C which is a integrated 10Gbps PHY with ID 0x001cc890. It follows the code path of RTL8125/RTL8126 internal NBase-T PHY. Signed-off-by: ChunHao Lin <hau@realtek.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250516055622.3772-1-hau@realtek.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20net: enetc: fix the error handling in enetc4_pf_netdev_create()Wei Fang1-1/+2
Fix the handling of err_wq_init and err_reg_netdev paths in enetc4_pf_netdev_create() function. Fixes: 6c5bafba347b ("net: enetc: add MAC filtering for i.MX95 ENETC PF") Signed-off-by: Wei Fang <wei.fang@nxp.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250516052734.3624191-1-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20octeontx2-pf: Add tracepoint for NIX_PARSE_SSubbaraya Sundeep3-1/+32
The NIX_PARSE_S structure populated by hardware in the NIX RX CQE has parsing information for the received packet. A tracepoint to dump the all words of NIX_PARSE_S is helpful in debugging packet parser. Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com> Link: https://patch.msgid.link/1747331048-15347-1-git-send-email-sbhatta@marvell.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-20net: phy: make mdio consumer / device layer a separate moduleHeiner Kallweit7-48/+17
After having factored out the provider part from mdio_bus.c, we can make the mdio consumer / device layer a separate module. This also allows to remove Kconfig symbol MDIO_DEVICE. The module init / exit functions from mdio_bus.c no longer have to be called from phy_device.c. The link order defined in drivers/net/phy/Makefile ensures that init / exit functions are called in the right order. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://patch.msgid.link/dba6b156-5748-44ce-b5e2-e8dc2fcee5a7@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-19queue_api: reduce risk of name collision over txqGur Stavi1-9/+9
Rename local variable in macros from txq to _txq. When macro parameter get_desc is expended it is likely to have a txq token that refers to a different txq variable at the caller's site. Signed-off-by: Gur Stavi <gur.stavi@huawei.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/95b60d218f004308486d92ed17c8cc6f28bac09d.1747559621.git.gur.stavi@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-19selftests: drv-net: Fix "envirnoments" to "environments"Sumanth Gavini1-1/+1
Fix misspelling reported by codespell Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250516225156.1122058-1-sumanth.gavini@yahoo.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-19net: netlink: reduce extack cookie sizeJohannes Berg1-1/+2
Seems like the extack cookie hasn't found any users outside of wireless, which always uses nl_set_extack_cookie_u64(). Thus, allocating 20 bytes for it is pointless, reduce that to 8 bytes, and add a BUILD_BUG_ON() to ensure it's enough (obviously it is, for a u64, but in case it changes again.) Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://patch.msgid.link/20250516115927.38209-2-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16vsock/test: check also expected errno on sigpipe testStefano Garzarella1-2/+10
In the sigpipe test, we expect send() to fail, but we do not check if send() fails with the errno we expect (EPIPE). Add this check and repeat the send() in case of EINTR as we do in other tests. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250514141927.159456-4-sgarzare@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16vsock/test: retry send() to avoid occasional failure in sigpipe testStefano Garzarella1-8/+30
When the other peer calls shutdown(SHUT_RD), there is a chance that the send() call could occur before the message carrying the close information arrives over the transport. In such cases, the send() might still succeed. To avoid this race, let's retry the send() call a few times, ensuring the test is more reliable. Sleep a little before trying again to avoid flooding the other peer and filling its receive buffer, causing false-negative. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250514141927.159456-3-sgarzare@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16vsock/test: add timeout_usleep() to allow sleeping in timeout sectionsStefano Garzarella2-0/+19
The timeout API uses signals, so we have documented not to use sleep(), but we can use nanosleep(2) since POSIX.1 explicitly specifies that it does not interact with signals. Let's provide timeout_usleep() for that. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250514141927.159456-2-sgarzare@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl: add a sample for rt-linkJakub Kicinski2-0/+185
Add a fairly complete example of rt-link usage. If run without any arguments it simply lists the interfaces and some of their attrs. If run with an arg it tries to create and delete a netkit device. 1 # ./tools/net/ynl/samples/rt-link 1 2 Trying to create a Netkit interface 3 Testing error message for policy being bad: 4 Kernel error: 'Provided default xmit policy not supported' (bad attribute: .linkinfo.data(netkit).policy) 5 1: lo: mtu 65536 6 2: wlp0s1: mtu 1500 7 3: enp0s13: mtu 1500 8 4: dummy0: mtu 1500 kind dummy altname one two 9 5: nk0: mtu 1500 kind netkit primary 0 policy forward 10 6: nk1: mtu 1500 kind netkit primary 1 policy blackhole 11 Trying to delete a Netkit interface (ifindex 6) Sample creates the device first, it sets an invalid value for a netkit attribute to trigger reverse parsing. Line 4 shows the error with the attribute path correctly generated by YNL. Then sample fixes the bad attribute and re-issues the request, with NLM_F_ECHO set. This flag causes the notification to be looped back to the initiating socket (our socket). Sample parses this notification to save the ifindex of the created netkit. Sample then proceeds to list the devices. Line 8 above shows a dummy device with two alt names. Lines 9 and 10 show the netkit devices the sample itself created. The "primary" and "policy" attrs are from inside the netkit submsg. The string values are auto-generated for the enums by YNL. To clean up sample deletes the interface it created (line 11). Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-10-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl: enable codegen for all rt- familiesJakub Kicinski2-4/+7
Switch from including Classic netlink families one by one to excluding. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-9-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl: submsg: reverse parse / error reportingJakub Kicinski3-11/+107
Reverse parsing lets YNL convert bad and missing attr pointers from extack into a string like "missing attribute nest1.nest2.attr_name". It's a feature that's unique to YNL C AFAIU (even the Python YNL can't do nested reverse parsing). Add support for reverse-parsing of sub-messages. To simplify the logic and the code annotate the type policies with extra metadata. Mark the selectors and the messages with the information we need. We assume that key / selector always precedes the sub-message while parsing (and also if there are multiple sub-messages like in rt-link they are interleaved selector 1 ... submsg 1 ... selector 2 .. submsg 2, not selector 1 ... selector 2 ... submsg 1 ... submsg 2). The rt-link sample in a subsequent changes shows reverse parsing of sub-messages in action. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl-gen: submsg: support parsing and rendering sub-messagesJakub Kicinski4-4/+89
Adjust parsing and rendering appropriately to make sub-messages work. Rendering is pretty trivial, as the submsg -> netlink conversion looks like rendering a nest in which only one attr was set. Only trick is that we use the enum value of the sub-message rather than the nest as the type, and effectively skip one layer of nesting. A real double nested struct would look like this: [SELECTOR] [SUBMSG] [NEST] [MSG1-ATTR] A submsg "is" the nest so by skipping I mean: [SELECTOR] [SUBMSG] [MSG1-ATTR] There is no extra validation in YNL if caller has set the selector matching the submsg type (e.g. link type = "macvlan" but the nest attrs are set to carry "veth"). Let the kernel handle that. Parsing side is a little more specialized as we need to render and insert a new kind of function which switches between what to parse based on the selector. But code isn't too complicated. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl-gen: submsg: render the structsJakub Kicinski1-3/+43
The easiest (or perhaps only sane) way to support submessages in C is to treat them as if they were nests. Build fake attributes to that effect in the codegen. Render the submsg as a big nest of all possible values. With this in place the main missing part is to hook in the switch which selects how to parse based on the key. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl-gen: submsg: plumb thru an empty typeJakub Kicinski2-2/+23
Hook in handling of sub-messages, for now treat them as ignored attrs. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl-gen: prepare for submsg structsJakub Kicinski1-23/+39
Prepare for constructing Struct() instances which represent sub-messages rather than nested attributes. Restructure the code / indentation to more easily insert a case where nested reference comes from annotation other than the 'nested-attributes' property. Make sure we don't construct the Struct() object from scratch in multiple places as the constructor will soon have more arguments. This should cause no functional change. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16tools: ynl-gen: factor out the annotation of pure nested structJakub Kicinski1-17/+22
We're about to add some code here for sub-messages. Factor out the nest-related logic to make the code readable. No functional change. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16netlink: specs: rt-link: add C naming info for ovpnJakub Kicinski1-0/+4
C naming info for OVPN which was added since I adjusted the existing attrs. Also add missing reference to a header needed for a bridge struct. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250515231650.1325372-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16net: phy: microchip: document where the LAN88xx PHYs are usedOleksij Rempel1-0/+2
The driver uses the name LAN88xx for PHYs with phy_id = 0x0007c132. But with this placeholder name no documentation can be found on the net. Document the fact that these PHYs are build into the LAN7800 and LAN7850 USB/Ethernet controllers. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250515082051.2644450-1-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16net: phy: fixed_phy: remove fixed_phy_register_with_gpiodHeiner Kallweit2-39/+7
Since its introduction 6 yrs ago this functions has never had a user. So remove it. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://patch.msgid.link/ccbeef28-65ae-4e28-b1db-816c44338dee@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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