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2022-07-24Documentation: fix sctp_wmem in ip-sysctl.rstXin Long1-1/+8
Since commit 1033990ac5b2 ("sctp: implement memory accounting on tx path"), SCTP has supported memory accounting on tx path where 'sctp_wmem' is used by sk_wmem_schedule(). So we should fix the description for this option in ip-sysctl.rst accordingly. v1->v2: - Improve the description as Marcelo suggested. Fixes: 1033990ac5b2 ("sctp: implement memory accounting on tx path") Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20Documentation: fix udp_wmem_min in ip-sysctl.rstXin Long1-5/+1
UDP doesn't support tx memory accounting, and sysctl udp_wmem_min is not really used anywhere. So we should fix the description in ip-sysctl.rst accordingly. Fixes: 95766fff6b9a ("[UDP]: Add memory accounting.") Signed-off-by: Xin Long <lucien.xin@gmail.com> Link: https://lore.kernel.org/r/c880a963d9b1fb5f442ae3c9e4dfa70d45296a16.1658167019.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-18docs: net: dsa: mention that VLANs are now refcounted on shared portsVladimir Oltean1-1/+7
The blamed commit updated the way in which VLANs are handled at the cross-chip notifier layer and didn't update the documentation to say that. Fix it. Fixes: 134ef2388e7f ("net: dsa: add explicit support for host bridge VLANs") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: delete misinformation about -EOPNOTSUPP for FDB/MDB/VLANVladimir Oltean1-9/+3
Returning -EOPNOTSUPP does *NOT* mean anything special. port_vlan_add() is actually called from 2 code paths, one is vlan_vid_add() from 8021q module and the other is br_switchdev_port_vlan_add() from switchdev. The bridge has a wrapper __vlan_vid_add() which first tries via switchdev, then if that returns -EOPNOTSUPP, tries again via the VLAN RX filters in the 8021q module. But DSA doesn't distinguish between one call path and the other when calling the driver's port_vlan_add(), so if the driver returns -EOPNOTSUPP to switchdev, it also returns -EOPNOTSUPP to the 8021q module. And the latter is a hard error. port_fdb_add() is called from the deferred dsa_owq only, so obviously its return code isn't propagated anywhere, and cannot be interpreted in any way. The return code from port_mdb_add() is propagated to the bridge, but again, this doesn't do anything special when -EOPNOTSUPP is returned, but rather, br_switchdev_mdb_notify() returns void. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: re-explain what port_fdb_dump actually doesVladimir Oltean1-3/+6
Switchdev has changed radically from its initial implementation, and the currently provided definition is incorrect and very confusing. Rewrite it in light of what it actually does. Fixes: 2bedde1abbef ("net: dsa: Move FDB dump implementation inside DSA") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: add a section for address databasesVladimir Oltean1-6/+130
The given definition for what VID 0 represents in the current port_fdb_add and port_mdb_add is blatantly wrong. Delete it and explain the concepts surrounding DSA's understanding of FDB isolation. Fixes: c26933639b54 ("net: dsa: request drivers to perform FDB isolation") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: delete port_mdb_dumpVladimir Oltean1-4/+0
This was deleted in 2017, stop documenting it. Fixes: dc0cbff3ff9f ("net: dsa: Remove redundant MDB dump support") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: remove port_vlan_dumpVladimir Oltean1-4/+0
This was deleted in 2017, delete the obsolete documentation. Fixes: c069fcd82c57 ("net: dsa: Remove support for bypass bridge port attributes/vlan set") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: remove port_bridge_tx_fwd_offloadVladimir Oltean1-16/+46
We've changed the API through which we can offload the bridge TX forwarding process. Update the documentation in light of the removal of 2 DSA switch ops. Fixes: b079922ba2ac ("net: dsa: add a "tx_fwd_offload" argument to ->port_bridge_join") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document port_fast_ageVladimir Oltean1-6/+8
The provided information about FDB flushing is not really up to date. The DSA core automatically calls port_fast_age() when necessary, and drivers should just implement that rather than hooking it to port_bridge_leave, port_stp_state_set and others. Fixes: 732f794c1baf ("net: dsa: add port fast ageing") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document port_setup and port_teardownVladimir Oltean1-0/+9
These methods were added without being documented, fix that. Fixes: fd292c189a97 ("net: dsa: tear down devlink port regions when tearing down the devlink port on error") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document the teardown methodVladimir Oltean1-1/+2
A teardown method was added to dsa_switch_ops without being documented. Do so now. Fixes: 5e3f847a02aa ("net: dsa: Add teardown callback for drivers") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document change_tag_protocolVladimir Oltean1-0/+6
Support for changing the tagging protocol was added without this operation being documented; do so now. Fixes: 53da0ebaad10 ("net: dsa: allow changing the tag protocol via the "tagging" device attribute") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: add more info about the other arguments to get_tag_protocolVladimir Oltean1-1/+5
Changes were made to the prototype of get_tag_protocol without describing at a high level what they are about. Update the documentation to explain that. Fixes: 5ed4e3eb0217 ("net: dsa: Pass a port to get_tag_protocol()") Fixes: 4d776482ecc6 ("net: dsa: Get information about stacked DSA protocol") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: rename tag_protocol to get_tag_protocolVladimir Oltean1-2/+2
Since the blamed commit, the enum was turned into a function pointer and also renamed. Update the documentation. Fixes: 7b314362a234 ("net: dsa: Allow the DSA driver to indicate the tag protocol") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: document the shutdown behaviorVladimir Oltean1-0/+18
Document the changes that took place in the DSA core in the blamed commit. Fixes: 0650bf52b31f ("net: dsa: be compatible with masters which unregister on shutdown") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18docs: net: dsa: update probing documentationVladimir Oltean1-11/+65
Since the blamed commit we don't have register_switch_driver() and unregister_switch_driver() anymore. Additionally, the expected dsa_register_switch() and dsa_unregister_switch() calls aren't documented. Update the probing section with the details of how things are currently done. Fixes: 93e86b3bc842 ("net: dsa: Remove legacy probing support") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13ipv4: Fix data-races around sysctl_ip_dynaddr.Kuniyuki Iwashima1-1/+1
While reading sysctl_ip_dynaddr, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-08cipso: Fix data-races around sysctl.Kuniyuki Iwashima1-1/+1
While reading cipso sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races. Fixes: 446fda4f2682 ("[NetLabel]: CIPSOv4 engine") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-14docs: networking: phy: Fix a typoJonathan Neuschäfer1-1/+1
Write "to be operated" instead of "to be operate". Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20220610072809.352962-1-j.neuschaefer@gmx.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-11Documentation: add description for net.sctp.ecn_enableXin Long1-0/+12
Describe it in networking/ip-sysctl.rst like other SCTP options. Fixes: 2f5268a9249b ("sctp: allow users to set netns ecn flag with sysctl") Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-11Documentation: add description for net.sctp.intl_enableXin Long1-0/+14
Describe it in networking/ip-sysctl.rst like other SCTP options. We need to document this especially as when using the feature of User Message Interleaving, some socket options also needs to be set. Fixes: 463118c34a35 ("sctp: support sysctl to allow users to use stream interleave") Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-11Documentation: add description for net.sctp.reconf_enableXin Long1-0/+11
Describe it in networking/ip-sysctl.rst like other SCTP options. Fixes: c0d8bab6ae51 ("sctp: add get and set sockopt for reconf_enable") Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-31net/ipv6: Expand and rename accept_unsolicited_na to accept_untracked_naArun Ajith S1-14/+9
RFC 9131 changes default behaviour of handling RX of NA messages when the corresponding entry is absent in the neighbour cache. The current implementation is limited to accept just unsolicited NAs. However, the RFC is more generic where it also accepts solicited NAs. Both types should result in adding a STALE entry for this case. Expand accept_untracked_na behaviour to also accept solicited NAs to be compliant with the RFC and rename the sysctl knob to accept_untracked_na. Fixes: f9a2fb73318e ("net/ipv6: Introduce accept_unsolicited_na knob to implement router-side changes for RFC9131") Signed-off-by: Arun Ajith S <aajith@arista.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20220530101414.65439-1-aajith@arista.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-05-23eth: de4x5: remove support for Generic DECchip & DIGITAL EtherWORKS PCI/EISAJakub Kicinski2-190/+0
Looks like almost all changes to this driver had been tree-wide refactoring since git era begun. There is one commit from Al 15 years ago which could potentially be fixing a real bug. The driver is using virt_to_bus() and is a real magnet for pointless cleanups. It seems unlikely to have real users. Let's try to shed this maintenance burden. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-20docs: change the title of networking docsJakub Kicinski1-2/+2
The current title of our section of the documentation is Linux Networking Documentation. Since we're describing a section of Linux Documentation repeating those two words seems redundant. Link: https://lore.kernel.org/r/20220518234346.2088436-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-16docs: ctucanfd: Use 'kernel-figure' directive instead of 'figure'Akira Yokosawa1-2/+2
Two issues were observed in the ReST doc added by commit c3a0addefbde ("docs: ctucanfd: CTU CAN FD open-source IP core documentation.") with Sphinx versions 2.4.4 and 4.5.0. The plain "figure" directive broke "make pdfdocs" due to a missing PDF figure. For conversion of SVG -> PDF to work, the "kernel-figure" directive, which is an extension for kernel documentation, should be used instead. The directive of "code:: raw" causes a warning from both "make htmldocs" and "make pdfdocs", which reads: [...]/can/ctu/ctucanfd-driver.rst:75: WARNING: Pygments lexer name 'raw' is not known A plain literal-block marker should suffice where no syntax highlighting is intended. Fix the issues by using suitable directive and marker. Fixes: c3a0addefbde ("docs: ctucanfd: CTU CAN FD open-source IP core documentation.") Link: https://lore.kernel.org/all/5986752a-1c2a-5d64-f91d-58b1e6decd17@gmail.com Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Acked-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Cc: Martin Jerabek <martin.jerabek01@gmail.com> Cc: Ondrej Ille <ondrej.ille@gmail.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-05-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-nextDavid S. Miller1-1/+4
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next This is v2 including deadlock fix in conntrack ecache rework reported by Jakub Kicinski. The following patchset contains Netfilter updates for net-next, mostly updates to conntrack from Florian Westphal. 1) Add a dedicated list for conntrack event redelivery. 2) Include event redelivery list in conntrack dumps of dying type. 3) Remove per-cpu dying list for event redelivery, not used anymore. 4) Add netns .pre_exit to cttimeout to zap timeout objects before synchronize_rcu() call. 5) Remove nf_ct_unconfirmed_destroy. 6) Add generation id for conntrack extensions for conntrack timeout and helpers. 7) Detach timeout policy from conntrack on cttimeout module removal. 8) Remove __nf_ct_unconfirmed_destroy. 9) Remove unconfirmed list. 10) Remove unconditional local_bh_disable in init_conntrack(). 11) Consolidate conntrack iterator nf_ct_iterate_cleanup(). 12) Detect if ctnetlink listeners exist to short-circuit event path early. 13) Un-inline nf_ct_ecache_ext_add(). 14) Add nf_conntrack_events autodetect ctnetlink listener mode and make it default. 15) Add nf_ct_ecache_exist() to check for event cache extension. 16) Extend flowtable reverse route lookup to include source, iif, tos and mark, from Sven Auhagen. 17) Do not verify zero checksum UDP packets in nf_reject, from Kevin Mitchell. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-13netfilter: conntrack: add nf_conntrack_events autodetect modeFlorian Westphal1-1/+4
This adds the new nf_conntrack_events=2 mode and makes it the default. This leverages the earlier flag in struct net to allow to avoid the event extension as long as no event listener is active in the namespace. This avoids, for most cases, allocation of ct->ext area. A followup patch will take further advantage of this by avoiding calls down into the event framework if the extension isn't present. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-05-11net: appletalk: remove Apple/Farallon LocalTalk PC supportJakub Kicinski2-145/+0
Looks like all the changes to this driver had been tree-wide refactoring since git era begun. The driver is using virt_to_bus() we should make it use more modern DMA APIs but since it's unlikely to be getting any use these days delete it instead. We can always revert to bring it back. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-11skbuff: render the checksum comment to documentationJakub Kicinski1-0/+6
Long time ago Tom added a giant comment to skbuff.h explaining checksums. Now that we have a place in Documentation for skbuff docs we should render it. Sprinkle some markup while at it. Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-11skbuff: rewrite the doc for data-only skbsJakub Kicinski2-0/+7
The comment about shinfo->dataref split is really unhelpful, at least to me. Rewrite it and render it to skb documentation. Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-11skbuff: add a basic intro docJakub Kicinski1-0/+25
Add basic skb documentation. It's mostly an intro to the subsequent patches - it would looks strange if we documented advanced topics without covering the basics in any way. Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-09net: wwan: t7xx: Add maintainers and documentationRicardo Martinez2-0/+121
Adds maintainers and documentation for MediaTek t7xx 5G WWAN modem device driver. Signed-off-by: Ricardo Martinez <ricardo.martinez@linux.intel.com> Reviewed-by: Loic Poulain <loic.poulain@linaro.org> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-06Revert "Merge branch 'mlxsw-line-card-model'"Jakub Kicinski2-37/+0
This reverts commit 5e927a9f4b9f29d78a7c7d66ea717bb5c8bbad8e, reversing changes made to cfc1d91a7d78cf9de25b043d81efcc16966d55b3. The discussion is still ongoing so let's remove the uAPI until the discussion settles. Link: https://lore.kernel.org/all/20220425090021.32e9a98f@kernel.org/ Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://lore.kernel.org/r/20220504154037.539442-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-02docs: networking: device drivers: can: ctucanfd: update author e-mailPavel Pisa1-1/+1
This patch updates the author's email address. Link: https://lore.kernel.org/all/e4396244da6b008c671def9f50bb983a10389863.1650816929.git.pisa@cmp.felk.cvut.cz Cc: Odrej Ille <ondrej.ille@gmail.com> Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> [mkl: split into separate patches] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-05-02docs: networking: device drivers: can: add ctucanfd to indexPavel Pisa1-0/+1
This patch adds the ctucanfd-driver document to the index. Link: https://lore.kernel.org/all/e4396244da6b008c671def9f50bb983a10389863.1650816929.git.pisa@cmp.felk.cvut.cz Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> [mkl: split into separate patches] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-04-30mptcp: Add a per-namespace sysctl to set the default path manager typeMat Martineau1-0/+18
The new net.mptcp.pm_type sysctl determines which path manager will be used by each newly-created MPTCP socket. v2: Handle builds without CONFIG_SYSCTL v3: Clarify logic for type-specific PM init (Geliang Tang and Paolo Abeni) Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-04-27net: wan: remove support for Z85230-based devicesJakub Kicinski3-275/+0
Looks like all the changes to this driver had been automated churn since git era begun. The driver is using virt_to_bus(), it's just a maintenance burden unlikely to have any users. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-25mlxsw: core_linecards: Expose device FW version over device infoJiri Pirko1-0/+15
Extend MDDQ to obtain FW version of line card device and implement device_info_get() op to fill up the info with that. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-25mlxsw: core_linecards: Expose HW revision and INI versionJiri Pirko1-0/+18
Implement info_get() to expose HW revision of a linecard and loaded INI version. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-25devlink: introduce line card device info infrastructureJiri Pirko1-1/+1
Extend the line card info message with information (e.g., FW version) about devices found on the line card. Example: $ devlink lc info pci/0000:01:00.0 lc 8 pci/0000:01:00.0: lc 8 versions: fixed: hw.revision 0 running: ini.version 4 devices: device 0 versions: running: fw 19.2010.1310 device 1 versions: running: fw 19.2010.1310 device 2 versions: running: fw 19.2010.1310 device 3 versions: running: fw 19.2010.1310 Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-25devlink: introduce line card info get messageJiri Pirko1-0/+4
Allow the driver to provide per line card info get op to fill-up info, similar to the "devlink dev info". Example: $ devlink lc info pci/0000:01:00.0 lc 8 pci/0000:01:00.0: lc 8 versions: fixed: hw.revision 0 running: ini.version 4 Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni1-0/+7
drivers/net/ethernet/microchip/lan966x/lan966x_main.c d08ed852560e ("net: lan966x: Make sure to release ptp interrupt") c8349639324a ("net: lan966x: Add FDMA functionality") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-04-20doc/ip-sysctl: add bc_forwardingNicolas Dichtel1-0/+7
Let's describe this sysctl. Fixes: 5cbf777cfdf6 ("route: add support for directed broadcast forwarding") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-19docs: ctucanfd: CTU CAN FD open-source IP core documentation.Pavel Pisa2-0/+790
CTU CAN FD IP core documentation based on Martin Jeřábek's diploma theses Open-source and Open-hardware CAN FD Protocol Support https://dspace.cvut.cz/handle/10467/80366 . Link: https://lore.kernel.org/all/692b965999ff6c272239df0fe1c76b68d02b134d.1647932262.git.pisa@cmp.felk.cvut.cz Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Martin Jerabek <martin.jerabek01@gmail.com> Signed-off-by: Ondrej Ille <ondrej.ille@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-04-18docs: net: dsa: describe issues with checksum offloadLuiz Angelo Daros de Luca1-0/+17
DSA tags before IP header (categories 1 and 2) or after the payload (3) might introduce offload checksum issues. Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-18devlink: implement line card active stateJiri Pirko1-5/+6
Allow driver to mark a line card as active. Expose this state to the userspace over devlink netlink interface with proper notifications. 'active' state means that line card was plugged in after being provisioned. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-18devlink: implement line card provisioningJiri Pirko2-0/+122
In order to be able to configure all needed stuff on a port/netdevice of a line card without the line card being present, introduce line card provisioning. Basically by setting a type, provisioning process will start and driver is supposed to create a placeholder for instances (ports/netdevices) for a line card type. Allow the user to query the supported line card types over line card get command. Then implement two netlink command SET to allow user to set/unset the card type. On the driver API side, add provision/unprovision ops and supported types array to be advertised. Upon provision op call, the driver should take care of creating the instances for the particular line card type. Introduce provision_set/clear() functions to be called by the driver once the provisioning/unprovisioning is done on its side. These helpers are not to be called directly due to the async nature of provisioning. Example: $ devlink port # No ports are listed $ devlink lc pci/0000:01:00.0: lc 1 state unprovisioned supported_types: 16x100G lc 2 state unprovisioned supported_types: 16x100G lc 3 state unprovisioned supported_types: 16x100G lc 4 state unprovisioned supported_types: 16x100G lc 5 state unprovisioned supported_types: 16x100G lc 6 state unprovisioned supported_types: 16x100G lc 7 state unprovisioned supported_types: 16x100G lc 8 state unprovisioned supported_types: 16x100G $ devlink lc set pci/0000:01:00.0 lc 8 type 16x100G $ devlink lc show pci/0000:01:00.0 lc 8 pci/0000:01:00.0: lc 8 state active type 16x100G supported_types: 16x100G $ devlink port pci/0000:01:00.0/0: type notset flavour cpu port 0 splittable false pci/0000:01:00.0/53: type eth netdev enp1s0nl8p1 flavour physical lc 8 port 1 splittable true lanes 4 pci/0000:01:00.0/54: type eth netdev enp1s0nl8p2 flavour physical lc 8 port 2 splittable true lanes 4 pci/0000:01:00.0/55: type eth netdev enp1s0nl8p3 flavour physical lc 8 port 3 splittable true lanes 4 pci/0000:01:00.0/56: type eth netdev enp1s0nl8p4 flavour physical lc 8 port 4 splittable true lanes 4 pci/0000:01:00.0/57: type eth netdev enp1s0nl8p5 flavour physical lc 8 port 5 splittable true lanes 4 pci/0000:01:00.0/58: type eth netdev enp1s0nl8p6 flavour physical lc 8 port 6 splittable true lanes 4 pci/0000:01:00.0/59: type eth netdev enp1s0nl8p7 flavour physical lc 8 port 7 splittable true lanes 4 pci/0000:01:00.0/60: type eth netdev enp1s0nl8p8 flavour physical lc 8 port 8 splittable true lanes 4 pci/0000:01:00.0/61: type eth netdev enp1s0nl8p9 flavour physical lc 8 port 9 splittable true lanes 4 pci/0000:01:00.0/62: type eth netdev enp1s0nl8p10 flavour physical lc 8 port 10 splittable true lanes 4 pci/0000:01:00.0/63: type eth netdev enp1s0nl8p11 flavour physical lc 8 port 11 splittable true lanes 4 pci/0000:01:00.0/64: type eth netdev enp1s0nl8p12 flavour physical lc 8 port 12 splittable true lanes 4 pci/0000:01:00.0/125: type eth netdev enp1s0nl8p13 flavour physical lc 8 port 13 splittable true lanes 4 pci/0000:01:00.0/126: type eth netdev enp1s0nl8p14 flavour physical lc 8 port 14 splittable true lanes 4 pci/0000:01:00.0/127: type eth netdev enp1s0nl8p15 flavour physical lc 8 port 15 splittable true lanes 4 pci/0000:01:00.0/128: type eth netdev enp1s0nl8p16 flavour physical lc 8 port 16 splittable true lanes 4 $ devlink lc set pci/0000:01:00.0 lc 8 notype Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-17net/ipv6: Introduce accept_unsolicited_na knob to implement router-side ↵Arun Ajith S1-0/+27
changes for RFC9131 Add a new neighbour cache entry in STALE state for routers on receiving an unsolicited (gratuitous) neighbour advertisement with target link-layer-address option specified. This is similar to the arp_accept configuration for IPv4. A new sysctl endpoint is created to turn on this behaviour: /proc/sys/net/ipv6/conf/interface/accept_unsolicited_na. Signed-off-by: Arun Ajith S <aajith@arista.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-27 15:29:03 +0300