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2022-07-18net/smc: Introduce a sysctl for setting SMC-R buffer typeWen Gu1-0/+13
This patch introduces the sysctl smcr_buf_type for setting the type of SMC-R sndbufs and RMBs. Valid values includes: - SMCR_PHYS_CONT_BUFS, which means use physically contiguous buffers for better performance and is the default value. - SMCR_VIRT_CONT_BUFS, which means use virtually contiguous buffers in case of physically contiguous memory is scarce. - SMCR_MIXED_BUFS, which means first try to use physically contiguous buffers. If not available, then use virtually contiguous buffers. Signed-off-by: Wen Gu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-07-15net: ipv6: new accept_untracked_na option to accept na only if in-networkJaehee Park1-21/+30
This patch adds a third knob, '2', which extends the accept_untracked_na option to learn a neighbor only if the src ip is in the same subnet as an address configured on the interface that received the neighbor advertisement. This is similar to the arp_accept configuration for ipv4. Signed-off-by: Jaehee Park <[email protected]> Suggested-by: Roopa Prabhu <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-07-15net: ipv4: new arp_accept option to accept garp only if in-networkJaehee Park1-3/+6
In many deployments, we want the option to not learn a neighbor from garp if the src ip is not in the same subnet as an address configured on the interface that received the garp message. net.ipv4.arp_accept sysctl is currently used to control creation of a neigh from a received garp packet. This patch adds a new option '2' to net.ipv4.arp_accept which extends option '1' by including the subnet check. Signed-off-by: Jaehee Park <[email protected]> Suggested-by: Roopa Prabhu <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-07-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-2/+2
include/net/sock.h 310731e2f161 ("net: Fix data-races around sysctl_mem.") e70f3c701276 ("Revert "net: set SK_MEM_QUANTUM to 4096"") https://lore.kernel.org/all/[email protected]/ net/ipv4/fib_semantics.c 747c14307214 ("ip: fix dflt addr selection for connected nexthop") d62607c3fe45 ("net: rename reference+tracking helpers") net/tls/tls.h include/net/tls.h 3d8c51b25a23 ("net/tls: Check for errors in tls_device_init") 587903142308 ("tls: create an internal header") Signed-off-by: Jakub Kicinski <[email protected]>
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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-07-11tls: rx: add counter for NoPad violationsJakub Kicinski1-0/+4
As discussed with Maxim add a counter for true NoPad violations. This should help deployments catch unexpected padded records vs just control records which always need re-encryption. https: //lore.kernel.org/all/[email protected]/ Signed-off-by: Jakub Kicinski <[email protected]>
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 <[email protected]> Acked-by: Paul Moore <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-07-06tls: rx: add sockopt for enabling optimistic decrypt with TLS 1.3Jakub Kicinski1-0/+18
Since optimisitic decrypt may add extra load in case of retries require socket owner to explicitly opt-in. Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-07-05eth: remove neterion/vxgeJakub Kicinski2-116/+0
The last meaningful change to this driver was made by Jon in 2011. As much as we'd like to believe that this is because the code is perfect the chances are nobody is using this hardware. Because of the size of this driver there is a nontrivial maintenance cost to keeping this code around, in the last 2 years we're averaging more than 1 change a month. Some of which require nontrivial review effort, see commit 877fe9d49b74 ("Revert "drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c"") for example. Let's try to remove this driver. In general, IMHO, we need to establish a clear path for shedding dead code. It will be hard to unless we have some experience trying to delete stuff. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-07-03Merge tag 'linux-can-next-for-5.20-20220703' of ↵David S. Miller2-0/+332
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2022-07-03 this is a pull request of 15 patches for net-next/master. The first 2 patches are by Max Staudt and add the can327 serial CAN driver along with a new line discipline ID. The next patch is by me an fixes a typo in the ctucanfd driver. The last 12 patches are by Dario Binacchi and integrate slcan CAN serial driver better into the existing CAN driver API. ==================== Signed-off-by: David S. Miller <[email protected]>
2022-06-30net, neigh: introduce interval_probe_time_ms for periodic probeYuwei Wang1-0/+6
commit ed6cd6a17896 ("net, neigh: Set lower cap for neigh_managed_work rearming") fixed a case when DELAY_PROBE_TIME is configured to 0, the processing of the system work queue hog CPU to 100%, and further more we should introduce a new option used by periodic probe Signed-off-by: Yuwei Wang <[email protected]> Signed-off-by: Paolo Abeni <[email protected]>
2022-06-29net: txgbe: Add build support for txgbeJiawen Wu2-0/+21
Add doc build infrastructure for txgbe driver. Initialize PCI memory space for WangXun 10 Gigabit Ethernet devices. Signed-off-by: Jiawen Wu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-06-27can: can327: CAN/ldisc driver for ELM327 based OBD-II adaptersMax Staudt2-0/+332
This is the can327 driver. It does a surprisingly good job at turning ELM327 based OBD-II interfaces into cheap CAN interfaces for simple homebrew projects. Please see the included documentation for details and limitations: Documentation/networking/device_drivers/can/can327.rst Link: https://lore.kernel.org/all/[email protected] Signed-off-by: Max Staudt <[email protected]> Reviewed-by: Vincent Mailhol <[email protected]> [mkl: minor coding style improvements] Signed-off-by: Marc Kleine-Budde <[email protected]>
2022-06-27Merge tag 'linux-can-next-for-5.20-20220625' of ↵David S. Miller1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2022-06-25 this is a pull request of 22 patches for net-next/master. The first 2 patches target the xilinx driver. Srinivas Neeli's patch adds Transmitter Delay Compensation (TDC) support, a patch by me fixes a typo. The next patch is by me and fixes a typo in the m_can driver. Another patch by me allows the configuration of fixed bit rates without need for do_set_bittiming callback. The following 7 patches are by Vincent Mailhol and refactor the can-dev module and Kbuild, de-inline the can_dropped_invalid_skb() function, which has grown over the time, and drop outgoing skbs if the controller is in listen only mode. Max Staudt's patch fixes a reference in the networking/can.rst documentation. Vincent Mailhol provides 2 patches with cleanups for the etas_es58x driver. Conor Dooley adds bindings for the mpfs-can to the PolarFire SoC dtsi. Another patch by me allows the configuration of fixed data bit rates without need for do_set_data_bittiming callback. The last 5 patches are by Frank Jungclaus. They prepare the esd_usb driver to add support for the the CAN-USB/3 device in a later series. ==================== Signed-off-by: David S. Miller <[email protected]>
2022-06-24Bonding: add per-port priority for failover re-selectionHangbin Liu1-0/+11
Add per port priority support for bonding active slave re-selection during failover. A higher number means higher priority in selection. The primary slave still has the highest priority. This option also follows the primary_reselect rules. This option could only be configured via netlink. Signed-off-by: Hangbin Liu <[email protected]> Acked-by: Jonathan Toppins <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-06-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2-1/+38
No conflicts. Signed-off-by: Jakub Kicinski <[email protected]>
2022-06-14docs: tls: document the TLS_TX_ZEROCOPY_ROJakub Kicinski1-0/+25
Add missing documentation for the TLS_TX_ZEROCOPY_RO opt-in. Signed-off-by: Jakub Kicinski <[email protected]> Acked-by: Maxim Mikityanskiy <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Paolo Abeni <[email protected]>
2022-06-13docs: networking: phy: Fix a typoJonathan Neuschäfer1-1/+1
Write "to be operated" instead of "to be operate". Signed-off-by: Jonathan Neuschäfer <[email protected]> Reviewed-by: Andrew Lunn <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-06-11can: Break loopback loop on loopback documentationMax Staudt1-1/+1
There are two sections called "Local Loopback of Sent Frames". One was meant to link to the other, but pointed at itself instead. Link: https://lore.kernel.org/all/[email protected] Fixes: 7d5977394515 ("can: migrate documentation to restructured text") Signed-off-by: Max Staudt <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]>
2022-06-10Documentation: 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 <[email protected]> Acked-by: Marcelo Ricardo Leitner <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-06-10Documentation: 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 <[email protected]> Acked-by: Marcelo Ricardo Leitner <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-06-10Documentation: 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 <[email protected]> Acked-by: Marcelo Ricardo Leitner <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
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 <[email protected]> Reviewed-by: David Ahern <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Paolo Abeni <[email protected]>
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 <[email protected]> Acked-by: Michael Ellerman <[email protected]> (powerpc) Acked-by: Arnd Bergmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-19docs: 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/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
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/[email protected] Signed-off-by: Akira Yokosawa <[email protected]> Acked-by: Pavel Pisa <[email protected]> Cc: Martin Jerabek <[email protected]> Cc: Ondrej Ille <[email protected]> Cc: Marc Kleine-Budde <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]>
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 <[email protected]>
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 <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
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 <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-10skbuff: 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 <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-05-10skbuff: 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 <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-05-10skbuff: 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 <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
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 <[email protected]> Reviewed-by: Loic Poulain <[email protected]> Reviewed-by: Ilpo Järvinen <[email protected]> Reviewed-by: Sergey Ryazanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-05-05Revert "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/[email protected]/ Reviewed-by: Ido Schimmel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
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 <[email protected]> Signed-off-by: Pavel Pisa <[email protected]> [mkl: split into separate patches] Signed-off-by: Marc Kleine-Budde <[email protected]>
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 <[email protected]> [mkl: split into separate patches] Signed-off-by: Marc Kleine-Budde <[email protected]>
2022-04-29mptcp: 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 <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]>
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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Signed-off-by: Martin Jerabek <[email protected]> Signed-off-by: Ondrej Ille <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]>
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 <[email protected]> Reviewed-by: Vladimir Oltean <[email protected]> Reviewed-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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 <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-04-15net: ethtool: extend ringparam set/get APIs for tx_pushJie Wang1-0/+8
Currently tx push is a standard driver feature which controls use of a fast path descriptor push. So this patch extends the ringparam APIs and data structures to support set/get tx push by ethtool -G/g. Signed-off-by: Jie Wang <[email protected]> Signed-off-by: Guangbin Huang <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
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