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2023-10-25Documentation: networking: explain what happens if temp_prefered_lft is too small or too largeAlex Henrie1-1/+5
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20231024212312.299370-5-alexhenrie24@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25Documentation: networking: explain what happens if temp_valid_lft is too smallAlex Henrie1-1/+3
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20231024212312.299370-4-alexhenrie24@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25net: ipv6/addrconf: clamp preferred_lft to the minimum requiredAlex Henrie1-5/+13
If the preferred lifetime was less than the minimum required lifetime, ipv6_create_tempaddr would error out without creating any new address. On my machine and network, this error happened immediately with the preferred lifetime set to 1 second, after a few minutes with the preferred lifetime set to 4 seconds, and not at all with the preferred lifetime set to 5 seconds. During my investigation, I found a Stack Exchange post from another person who seems to have had the same problem: They stopped getting new addresses if they lowered the preferred lifetime below 3 seconds, and they didn't really know why. The preferred lifetime is a preference, not a hard requirement. The kernel does not strictly forbid new connections on a deprecated address, nor does it guarantee that the address will be disposed of the instant its total valid lifetime expires. So rather than disable IPv6 privacy extensions altogether if the minimum required lifetime swells above the preferred lifetime, it is more in keeping with the user's intent to increase the temporary address's lifetime to the minimum necessary for the current network conditions. With these fixes, setting the preferred lifetime to 3 or 4 seconds "just works" because the extra fraction of a second is practically unnoticeable. It's even possible to reduce the time before deprecation to 1 or 2 seconds by also disabling duplicate address detection (setting /proc/sys/net/ipv6/conf/*/dad_transmits to 0). I realize that that is a pretty niche use case, but I know at least one person who would gladly sacrifice performance and convenience to be sure that they are getting the maximum possible level of privacy. Link: https://serverfault.com/a/1031168/310447 Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20231024212312.299370-3-alexhenrie24@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25net: ipv6/addrconf: clamp preferred_lft to the maximum allowedAlex Henrie1-0/+1
Without this patch, there is nothing to stop the preferred lifetime of a temporary address from being greater than its valid lifetime. If that was the case, the valid lifetime was effectively ignored. Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20231024212312.299370-2-alexhenrie24@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25ipv6: avoid atomic fragment on GSO packetsYan Zhai1-1/+7
When the ipv6 stack output a GSO packet, if its gso_size is larger than dst MTU, then all segments would be fragmented. However, it is possible for a GSO packet to have a trailing segment with smaller actual size than both gso_size as well as the MTU, which leads to an "atomic fragment". Atomic fragments are considered harmful in RFC-8021. An Existing report from APNIC also shows that atomic fragments are more likely to be dropped even it is equivalent to a no-op [1]. Add an extra check in the GSO slow output path. For each segment from the original over-sized packet, if it fits with the path MTU, then avoid generating an atomic fragment. Link: https://www.potaroo.net/presentations/2022-03-01-ipv6-frag.pdf [1] Fixes: b210de4f8c97 ("net: ipv6: Validate GSO SKB before finish IPv6 processing") Reported-by: David Wragg <dwragg@cloudflare.com> Signed-off-by: Yan Zhai <yan@cloudflare.com> Link: https://lore.kernel.org/r/90912e3503a242dca0bc36958b11ed03a2696e5e.1698156966.git.yan@cloudflare.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25ipv6: refactor ip6_finish_output for GSO handlingYan Zhai1-7/+15
Separate GSO and non-GSO packets handling to make the logic cleaner. For GSO packets, frag_max_size check can be omitted because it is only useful for packets defragmented by netfilter hooks. Both local output and GRO logic won't produce GSO packets when defragment is needed. This also mirrors what IPv4 side code is doing. Suggested-by: Florian Westphal <fw@strlen.de> Signed-off-by: Yan Zhai <yan@cloudflare.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/0e1d4599f858e2becff5c4fe0b5f843236bc3fe8.1698156966.git.yan@cloudflare.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25ipv6: drop feature RTAX_FEATURE_ALLFRAGYan Zhai9-45/+5
RTAX_FEATURE_ALLFRAG was added before the first git commit: https://www.mail-archive.com/bk-commits-head@vger.kernel.org/msg03399.html The feature would send packets to the fragmentation path if a box receives a PMTU value with less than 1280 byte. However, since commit 9d289715eb5c ("ipv6: stop sending PTB packets for MTU < 1280"), such message would be simply discarded. The feature flag is neither supported in iproute2 utility. In theory one can still manipulate it with direct netlink message, but it is not ideal because it was based on obsoleted guidance of RFC-2460 (replaced by RFC-8200). The feature would always test false at the moment, so remove related code or mark them as unused. Signed-off-by: Yan Zhai <yan@cloudflare.com> Reviewed-by: Florian Westphal <fw@strlen.de> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/d78e44dcd9968a252143ffe78460446476a472a1.1698156966.git.yan@cloudflare.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25iavf: in iavf_down, disable queues when removing the driverMichal Schmidt1-1/+1
In iavf_down, we're skipping the scheduling of certain operations if the driver is being removed. However, the IAVF_FLAG_AQ_DISABLE_QUEUES request must not be skipped in this case, because iavf_close waits for the transition to the __IAVF_DOWN state, which happens in iavf_virtchnl_completion after the queues are released. Without this fix, "rmmod iavf" takes half a second per interface that's up and prints the "Device resources not yet released" warning. Fixes: c8de44b577eb ("iavf: do not process adminq tasks when __IAVF_IN_REMOVE_TASK is set") Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Tested-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231025183213.874283-1-jacob.e.keller@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25vsock/virtio: initialize the_virtio_vsock before using VQsAlexandru Matei1-1/+17
Once VQs are filled with empty buffers and we kick the host, it can send connection requests. If the_virtio_vsock is not initialized before, replies are silently dropped and do not reach the host. virtio_transport_send_pkt() can queue packets once the_virtio_vsock is set, but they won't be processed until vsock->tx_run is set to true. We queue vsock->send_pkt_work when initialization finishes to send those packets queued earlier. Fixes: 0deab087b16a ("vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock") Signed-off-by: Alexandru Matei <alexandru.matei@uipath.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20231024191742.14259-1-alexandru.matei@uipath.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: refactor sndbuf auto-tuningPaolo Abeni4-10/+70
The MPTCP protocol account for the data enqueued on all the subflows to the main socket send buffer, while the send buffer auto-tuning algorithm set the main socket send buffer size as the max size among the subflows. That causes bad performances when at least one subflow is sndbuf limited, e.g. due to very high latency, as the MPTCP scheduler can't even fill such buffer. Change the send-buffer auto-tuning algorithm to compute the main socket send buffer size as the sum of all the subflows buffer size. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-9-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: ignore notsent_lowat setting at the subflow levelPaolo Abeni1-0/+6
Any latency related tuning taking action at the subflow level does not really affect the user-space, as only the main MPTCP socket is relevant. Anyway any limiting setting may foul the MPTCP scheduler, not being able to fully use the subflow-level cwin, leading to very poor b/w usage. Enforce notsent_lowat to be a no-op on every subflow. Note that TCP_NOTSENT_LOWAT is currently not supported, and properly dealing with that will require more invasive changes. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-8-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: consolidate sockopt synchronizationPaolo Abeni3-33/+9
Move the socket option synchronization for active subflows at subflow creation time. This allows removing the now unused unlocked variant of such helper. While at that, clean-up a bit the mptcp_subflow_create_socket() errors path. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-7-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: use copy_from_iter helpers on transmitPaolo Abeni1-4/+15
The perf traces show an high cost for the MPTCP transmit path memcpy. It turn out that the helper currently in use carries quite a bit of unneeded overhead, e.g. to map/unmap the memory pages. Moving to the 'copy_from_iter' variant removes such overhead and additionally gains the no-cache support. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-6-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: give rcvlowat some lovePaolo Abeni4-15/+83
The MPTCP protocol allow setting sk_rcvlowat, but the value there is currently ignored. Additionally, the default subflows sk_rcvlowat basically disables per subflow delayed ack: the MPTCP protocol move the incoming data from the subflows into the msk socket as soon as the TCP stacks invokes the subflow data_ready callback. Later, when __tcp_ack_snd_check() takes action, the subflow-level copied_seq matches rcv_nxt, and that mandate for an immediate ack. Let the mptcp receive path be aware of such threshold, explicitly tracking the amount of data available to be ready and checking vs sk_rcvlowat in mptcp_poll() and before waking-up readers. Additionally implement the set_rcvlowat() callback, to properly handle the rcvbuf auto-tuning on sk_rcvlowat changes. Finally to properly handle delayed ack, force the subflow level threshold to 0 and instead explicitly ask for an immediate ack when the msk level th is not reached. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-5-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25tcp: define initial scaling factor value as a macroPaolo Abeni1-5/+7
So that other users could access it. Notably MPTCP will use it in the next patch. No functional change intended. Acked-by: Matthieu Baerts <matttbe@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-4-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: use plain bool instead of custom binary enumPaolo Abeni2-12/+7
The 'data_avail' subflow field is already used as plain boolean, drop the custom binary enum type and switch to bool. No functional changed intended. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-3-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: properly account fastopen dataPaolo Abeni1-0/+1
Currently the socket level counter aggregating the received data does not take in account the data received via fastopen. Address the issue updating the counter as required. Fixes: 38967f424b5b ("mptcp: track some aggregate data counters") Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-2-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25mptcp: add a new sysctl for make after break timeoutPaolo Abeni4-3/+31
The MPTCP protocol allows sockets with no alive subflows to stay in ESTABLISHED status for and user-defined timeout, to allow for later subflows creation. Currently such timeout is constant - TCP_TIMEWAIT_LEN. Let the user-space configure them via a newly added sysctl, to better cope with busy servers and simplify (make them faster) the relevant pktdrill tests. Note that the new know does not apply to orphaned MPTCP socket waiting for the data_fin handshake completion: they always wait TCP_TIMEWAIT_LEN. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-1-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25Revert "Merge branch 'mv88e6xxx-dsa-bindings'"Jakub Kicinski26-761/+457
This reverts the following commits: commit 53313ed25ba8 ("dt-bindings: marvell: Add Marvell MV88E6060 DSA schema") commit 0f35369b4efe ("dt-bindings: marvell: Rewrite MV88E6xxx in schema") commit 605a5f5d406d ("ARM64: dts: marvell: Fix some common switch mistakes") commit bfedd8423643 ("ARM: dts: nxp: Fix some common switch mistakes") commit 2b83557a588f ("ARM: dts: marvell: Fix some common switch mistakes") commit ddae07ce9bb3 ("dt-bindings: net: mvusb: Fix up DSA example") commit b5ef61718ad7 ("dt-bindings: net: dsa: Require ports or ethernet-ports") As repoted by Vladimir, it breaks boot on the Turris MOX board. Link: https://lore.kernel.org/all/20231025093632.fb2qdtunzaznd73z@skbuf/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-25net: ipv6: fix typo in commentsDeming Wang1-1/+1
The word "advertize" should be replaced by "advertise". Signed-off-by: Deming Wang <wangdeming@inspur.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25net: ipv4: fix typo in commentsDeming Wang1-1/+1
The word "advertize" should be replaced by "advertise". Signed-off-by: Deming Wang <wangdeming@inspur.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25net/sched: act_ct: additional checks for outdated flowsVlad Buslov1-0/+2
Current nf_flow_is_outdated() implementation considers any flow table flow which state diverged from its underlying CT connection status for teardown which can be problematic in the following cases: - Flow has never been offloaded to hardware in the first place either because flow table has hardware offload disabled (flag NF_FLOWTABLE_HW_OFFLOAD is not set) or because it is still pending on 'add' workqueue to be offloaded for the first time. The former is incorrect, the later generates excessive deletions and additions of flows. - Flow is already pending to be updated on the workqueue. Tearing down such flows will also generate excessive removals from the flow table, especially on highly loaded system where the latency to re-offload a flow via 'add' workqueue can be quite high. When considering a flow for teardown as outdated verify that it is both offloaded to hardware and doesn't have any pending updates. Fixes: 41f2c7c342d3 ("net/sched: act_ct: Fix promotion of offloaded unreplied tuple") Reviewed-by: Paul Blakey <paulb@nvidia.com> Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-10-25netfilter: flowtable: GC pushes back packets to classic pathPablo Neira Ayuso3-7/+15
Since 41f2c7c342d3 ("net/sched: act_ct: Fix promotion of offloaded unreplied tuple"), flowtable GC pushes back flows with IPS_SEEN_REPLY back to classic path in every run, ie. every second. This is because of a new check for NF_FLOW_HW_ESTABLISHED which is specific of sched/act_ct. In Netfilter's flowtable case, NF_FLOW_HW_ESTABLISHED never gets set on and IPS_SEEN_REPLY is unreliable since users decide when to offload the flow before, such bit might be set on at a later stage. Fix it by adding a custom .gc handler that sched/act_ct can use to deal with its NF_FLOW_HW_ESTABLISHED bit. Fixes: 41f2c7c342d3 ("net/sched: act_ct: Fix promotion of offloaded unreplied tuple") Reported-by: Vladimir Smelhaus <vl.sm@email.cz> Reviewed-by: Paul Blakey <paulb@nvidia.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-10-25amd/pds_core: core: No need for Null pointer check before kfreeBragatheswaran Manickavel1-5/+2
kfree()/vfree() internally perform NULL check on the pointer handed to it and take no action if it indeed is NULL. Hence there is no need for a pre-check of the memory pointer before handing it to kfree()/vfree(). Issue reported by ifnullfree.cocci Coccinelle semantic patch script. Signed-off-by: Bragatheswaran Manickavel <bragathemanick0908@gmail.com> Reviewed-by: Shannon Nelson <shannon.nelson@amd.com> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25dt-bindings: marvell: Add Marvell MV88E6060 DSA schemaLinus Walleij2-0/+89
The Marvell MV88E6060 is one of the oldest DSA switches from Marvell, and it has DT bindings used in the wild. Let's define them properly. It is different enough from the rest of the MV88E6xxx switches that it deserves its own binding. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25dt-bindings: marvell: Rewrite MV88E6xxx in schemaLinus Walleij3-110/+331
This is an attempt to rewrite the Marvell MV88E6xxx switch bindings in YAML schema. The current text binding says: WARNING: This binding is currently unstable. Do not program it into a FLASH never to be changed again. Once this binding is stable, this warning will be removed. Well that never happened before we switched to YAML markup, we can't have it like this, what about fixing the mess? Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25ARM64: dts: marvell: Fix some common switch mistakesLinus Walleij7-167/+164
Fix some errors in the Marvell MV88E6xxx switch descriptions: - The top node had no address size or cells. - switch0@0 is not OK, should be ethernet-switch@0. - ports should be ethernet-ports - port@0 should be ethernet-port@0 - PHYs should be named ethernet-phy@ Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25ARM: dts: nxp: Fix some common switch mistakesLinus Walleij5-70/+70
Fix some errors in the Marvell MV88E6xxx switch descriptions: - switch0@0 is not OK, should be ethernet-switch@0 - ports should be ethernet-ports - port should be ethernet-port - phy should be ethernet-phy Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25ARM: dts: marvell: Fix some common switch mistakesLinus Walleij8-108/+96
Fix some errors in the Marvell MV88E6xxx switch descriptions: - The top node had no address size or cells. - switch0@0 is not OK, should be ethernet-switch@0. - The ports node should be named ethernet-ports - The ethernet-ports node should have port@0 etc children, no plural "ports" in the children. - Ports should be named ethernet-port@0 etc - PHYs should be named ethernet-phy@0 etc This serves as an example of fixes needed for introducing a schema for the bindings, but the patch can simply be applied. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25dt-bindings: net: mvusb: Fix up DSA exampleLinus Walleij1-2/+5
When adding a proper schema for the Marvell mx88e6xxx switch, the scripts start complaining about this embedded example: dtschema/dtc warnings/errors: net/marvell,mvusb.example.dtb: switch@0: ports: '#address-cells' is a required property from schema $id: http://devicetree.org/schemas/net/dsa/marvell,mv88e6xxx.yaml# net/marvell,mvusb.example.dtb: switch@0: ports: '#size-cells' is a required property from schema $id: http://devicetree.org/schemas/net/dsa/marvell,mv88e6xxx.yaml# Fix this up by extending the example with those properties in the ports node. While we are at it, rename "ports" to "ethernet-ports" and rename "switch" to "ethernet-switch" as this is recommended practice. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25dt-bindings: net: dsa: Require ports or ethernet-portsLinus Walleij1-0/+6
Bindings using dsa.yaml#/$defs/ethernet-ports specify that a DSA switch node need to have a ports or ethernet-ports subnode, and that is actually required, so add requirements using oneOf. Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25sched: act_ct: switch to per-action label countingFlorian Westphal2-23/+19
net->ct.labels_used was meant to convey 'number of ip/nftables rules that need the label extension allocated'. act_ct enables this for each net namespace, which voids all attempts to avoid ct->ext allocation when possible. Move this increment to the control plane to request label extension space allocation only when its needed. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Pedro Tammela <pctammela@mojatatu.com> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25net: hns3: add some link modes for hisilicon deviceHao Chen2-82/+92
Add HCLGE_SUPPORT_50G_R1_BIT and HCLGE_SUPPORT_100G_R2_BIT two capability bits and Corresponding link modes. Signed-off-by: Hao Chen <chenhao418@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25net: dsa: microchip: ksz9477: add Wake on LAN supportOleksij Rempel4-0/+132
Add WoL support for KSZ9477 family of switches. This code was tested on KSZ8563 chip. KSZ9477 family of switches supports multiple PHY events: - wake on Link Up - wake on Energy Detect. Since current UAPI can't differentiate between this PHY events, map all of them to WAKE_PHY. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25net: dsa: microchip: use wakeup-source DT property to enable PME outputOleksij Rempel2-0/+4
KSZ switches with WoL support signals wake event over PME pin. If this pin is attached to some external PMIC or System Controller can't be described as GPIO, the only way to describe it in the devicetree is to use wakeup-source property. So, add support for this property and enable PME switch output if this property is present. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25dt-bindings: net: dsa: microchip: add wakeup-source propertyOleksij Rempel1-0/+2
Add wakeup-source property to enable Wake on Lan functionality in the switch. Since PME wake pin is not always attached to the SoC, use wakeup-source instead of wakeup-gpios Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-25net: dsa: microchip: Add missing MAC address register offset for ksz8863Oleksij Rempel1-0/+1
Add the missing offset for the global MAC address register (REG_SW_MAC_ADDR) for the ksz8863 family of switches. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-24s390/qeth: replace deprecated strncpy with strscpyJustin Stitt1-1/+1
strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect new_entry->dbf_name to be NUL-terminated based on its use with strcmp(): | if (strcmp(entry->dbf_name, name) == 0) { Moreover, NUL-padding is not required as new_entry is kzalloc'd just before this assignment: | new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); ... rendering any future NUL-byte assignments (like the ones strncpy() does) redundant. Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Thorsten Winkler <twinkler@linux.ibm.com> Tested-by: Thorsten Winkler <twinkler@linux.ibm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20231023-strncpy-drivers-s390-net-qeth_core_main-c-v1-1-e7ce65454446@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24s390/ctcm: replace deprecated strncpy with strscpyJustin Stitt1-2/+2
strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect chid to be NUL-terminated based on its use with format strings: CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s(%s) %s", CTCM_FUNTAIL, chid, ok ? "OK" : "failed"); Moreover, NUL-padding is not required as it is _only_ used in this one instance with a format string. Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. We can also drop the +1 from chid's declaration as we no longer need to be cautious about leaving a spot for a NUL-byte. Let's use the more idiomatic strscpy usage of (dest, src, sizeof(dest)) as this more closely ties the destination buffer to the length. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Thorsten Winkler <twinkler@linux.ibm.com> Tested-by: Thorsten Winkler <twinkler@linux.ibm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20231023-strncpy-drivers-s390-net-ctcm_main-c-v1-1-265db6e78165@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: ethernet: mtk_wed: remove wo pointer in wo_r32/wo_w32 signatureLorenzo Bianconi1-6/+6
wo pointer is no longer used in wo_r32 and wo_w32 routines so get rid of it. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/530537db0872f7523deff21f0a5dfdd9b75fdc9d.1698098459.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: ethernet: mtk_wed: fix firmware loading for MT7986 SoCLorenzo Bianconi1-23/+25
The WED mcu firmware does not contain all the memory regions defined in the dts reserved_memory node (e.g. MT7986 WED firmware does not contain cpu-boot region). Reverse the mtk_wed_mcu_run_firmware() logic to check all the fw sections are defined in the dts reserved_memory node. Fixes: c6d961aeaa77 ("net: ethernet: mtk_wed: move mem_region array out of mtk_wed_mcu_load_firmware") Tested-by: Frank Wunderlich <frank-w@public-files.de> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/d983cbfe8ea562fef9264de8f0c501f7d5705bd5.1698098381.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24i40e: Fix wrong check for I40E_TXR_FLAGS_WB_ON_ITRIvan Vecera1-1/+1
The I40E_TXR_FLAGS_WB_ON_ITR is i40e_ring flag and not i40e_pf one. Fixes: 8e0764b4d6be42 ("i40e/i40evf: Add support for writeback on ITR feature for X722") Signed-off-by: Ivan Vecera <ivecera@redhat.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231023212714.178032-1-jacob.e.keller@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: ethernet: renesas: drop SoC names in KconfigWolfram Sang1-8/+1
Mentioning SoCs in Kconfig descriptions tends to get stale (e.g. RAVB is missing RZV2M) or imprecise (e.g. SH_ETH is not available on all R8A779x). Drop them instead of providing vague information. Improve the file description a tad while here. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/20231022205316.3209-3-wsa+renesas@sang-engineering.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: ethernet: renesas: group entries in MakefileWolfram Sang1-3/+1
A new Renesas driver shall be added soon. Prepare the Makefile by grouping the specific objects to the Kconfig symbol for better readability. Improve the file description a tad while here. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/20231022205316.3209-2-wsa+renesas@sang-engineering.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24selftests: net: change ifconfig with ip commandSwarup Laxman Kotiaklapudi1-2/+4
Change ifconfig with ip command, on a system where ifconfig is not used this script will not work correcly. Test result with this patchset: sudo make TARGETS="net" kselftest .... TAP version 13 1..1 timeout set to 1500 selftests: net: route_localnet.sh run arp_announce test net.ipv4.conf.veth0.route_localnet = 1 net.ipv4.conf.veth1.route_localnet = 1 net.ipv4.conf.veth0.arp_announce = 2 net.ipv4.conf.veth1.arp_announce = 2 PING 127.25.3.14 (127.25.3.14) from 127.25.3.4 veth0: 56(84) bytes of data. 64 bytes from 127.25.3.14: icmp_seq=1 ttl=64 time=0.038 ms 64 bytes from 127.25.3.14: icmp_seq=2 ttl=64 time=0.068 ms 64 bytes from 127.25.3.14: icmp_seq=3 ttl=64 time=0.068 ms 64 bytes from 127.25.3.14: icmp_seq=4 ttl=64 time=0.068 ms 64 bytes from 127.25.3.14: icmp_seq=5 ttl=64 time=0.068 ms --- 127.25.3.14 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4073ms rtt min/avg/max/mdev = 0.038/0.062/0.068/0.012 ms ok run arp_ignore test net.ipv4.conf.veth0.route_localnet = 1 net.ipv4.conf.veth1.route_localnet = 1 net.ipv4.conf.veth0.arp_ignore = 3 net.ipv4.conf.veth1.arp_ignore = 3 PING 127.25.3.14 (127.25.3.14) from 127.25.3.4 veth0: 56(84) bytes of data. 64 bytes from 127.25.3.14: icmp_seq=1 ttl=64 time=0.032 ms 64 bytes from 127.25.3.14: icmp_seq=2 ttl=64 time=0.065 ms 64 bytes from 127.25.3.14: icmp_seq=3 ttl=64 time=0.066 ms 64 bytes from 127.25.3.14: icmp_seq=4 ttl=64 time=0.065 ms 64 bytes from 127.25.3.14: icmp_seq=5 ttl=64 time=0.065 ms --- 127.25.3.14 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4092ms rtt min/avg/max/mdev = 0.032/0.058/0.066/0.013 ms ok ok 1 selftests: net: route_localnet.sh ... Signed-off-by: Swarup Laxman Kotiaklapudi <swarupkotikalapudi@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20231023123422.2895-1-swarupkotikalapudi@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: dsa: Rename IFLA_DSA_MASTER to IFLA_DSA_CONDUITFlorian Fainelli3-8/+10
This preserves the existing IFLA_DSA_MASTER which is part of the uAPI and creates an alias named IFLA_DSA_CONDUIT. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/20231023181729.1191071-3-florian.fainelli@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: dsa: Use conduit and user termsFlorian Fainelli74-1544/+1547
Use more inclusive terms throughout the DSA subsystem by moving away from "master" which is replaced by "conduit" and "slave" which is replaced by "user". No functional changes. Acked-by: Rob Herring <robh@kernel.org> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/20231023181729.1191071-2-florian.fainelli@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24tsnep: Fix tsnep_request_irq() format-overflow warningGerhard Engleder2-7/+7
Compiler warns about a possible format-overflow in tsnep_request_irq(): drivers/net/ethernet/engleder/tsnep_main.c:884:55: warning: 'sprintf' may write a terminating nul past the end of the destination [-Wformat-overflow=] sprintf(queue->name, "%s-rx-%d", name, ^ drivers/net/ethernet/engleder/tsnep_main.c:881:55: warning: 'sprintf' may write a terminating nul past the end of the destination [-Wformat-overflow=] sprintf(queue->name, "%s-tx-%d", name, ^ drivers/net/ethernet/engleder/tsnep_main.c:878:49: warning: '-txrx-' directive writing 6 bytes into a region of size between 5 and 25 [-Wformat-overflow=] sprintf(queue->name, "%s-txrx-%d", name, ^~~~~~ Actually overflow cannot happen. Name is limited to IFNAMSIZ, because netdev_name() is called during ndo_open(). queue_index is single char, because less than 10 queues are supported. Fix warning with snprintf(). Additionally increase buffer to 32 bytes, because those 7 additional bytes were unused anyway. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202310182028.vmDthIUa-lkp@intel.com/ Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231023183856.58373-1-gerhard@engleder-embedded.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: remove else after return in dev_prep_valid_name()Jakub Kicinski1-5/+4
Remove unnecessary else clauses after return. I copied this if / else construct from somewhere, it makes the code harder to read. Reviewed-by: Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/20231023152346.3639749-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-24net: remove dev_valid_name() check from __dev_alloc_name()Jakub Kicinski1-3/+0
__dev_alloc_name() is only called by dev_prep_valid_name(), which already checks that name is valid. Reviewed-by: Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/20231023152346.3639749-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>