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2021-08-22docs: devlink: remove the references to sja1105Vladimir Oltean
The sja1105 driver has removed its devlink params, so there is nothing to see here. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-11devlink: Add new "enable_vnet" generic device paramParav Pandit
Add new device generic parameter to enable/disable creation of VDPA net auxiliary device and associated device functionality in the devlink instance. User who prefers to disable such functionality can disable it using below example. $ devlink dev param set pci/0000:06:00.0 \ name enable_vnet value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device for the VDPA net functionality. Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-11devlink: Add new "enable_rdma" generic device paramParav Pandit
Add new device generic parameter to enable/disable creation of RDMA auxiliary device and associated device functionality in the devlink instance. User who prefers to disable such functionality can disable it using below example. $ devlink dev param set pci/0000:06:00.0 \ name enable_rdma value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device for the RDMA functionality. Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-11devlink: Add new "enable_eth" generic device paramParav Pandit
Add new device generic parameter to enable/disable creation of Ethernet auxiliary device and associated device functionality in the devlink instance. User who prefers to disable such functionality can disable it using below example. $ devlink dev param set pci/0000:06:00.0 \ name enable_eth value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device for the Ethernet functionality. Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-26devlink: add documentation for hns3 driverHao Chen
Add a file to document devlink support for hns3 driver, now support devlink info and devlink reload. Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-30Merge tag 'net-next-5.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - BPF: - add syscall program type and libbpf support for generating instructions and bindings for in-kernel BPF loaders (BPF loaders for BPF), this is a stepping stone for signed BPF programs - infrastructure to migrate TCP child sockets from one listener to another in the same reuseport group/map to improve flexibility of service hand-off/restart - add broadcast support to XDP redirect - allow bypass of the lockless qdisc to improving performance (for pktgen: +23% with one thread, +44% with 2 threads) - add a simpler version of "DO_ONCE()" which does not require jump labels, intended for slow-path usage - virtio/vsock: introduce SOCK_SEQPACKET support - add getsocketopt to retrieve netns cookie - ip: treat lowest address of a IPv4 subnet as ordinary unicast address allowing reclaiming of precious IPv4 addresses - ipv6: use prandom_u32() for ID generation - ip: add support for more flexible field selection for hashing across multi-path routes (w/ offload to mlxsw) - icmp: add support for extended RFC 8335 PROBE (ping) - seg6: add support for SRv6 End.DT46 behavior - mptcp: - DSS checksum support (RFC 8684) to detect middlebox meddling - support Connection-time 'C' flag - time stamping support - sctp: packetization Layer Path MTU Discovery (RFC 8899) - xfrm: speed up state addition with seq set - WiFi: - hidden AP discovery on 6 GHz and other HE 6 GHz improvements - aggregation handling improvements for some drivers - minstrel improvements for no-ack frames - deferred rate control for TXQs to improve reaction times - switch from round robin to virtual time-based airtime scheduler - add trace points: - tcp checksum errors - openvswitch - action execution, upcalls - socket errors via sk_error_report Device APIs: - devlink: add rate API for hierarchical control of max egress rate of virtual devices (VFs, SFs etc.) - don't require RCU read lock to be held around BPF hooks in NAPI context - page_pool: generic buffer recycling New hardware/drivers: - mobile: - iosm: PCIe Driver for Intel M.2 Modem - support for Qualcomm MSM8998 (ipa) - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU) - NXP SJA1110 Automotive Ethernet 10-port switch - Qualcomm QCA8327 switch support (qca8k) - Mikrotik 10/25G NIC (atl1c) Driver changes: - ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP (our first foray into MAC/PHY description via ACPI) - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx - Mellanox/Nvidia NIC (mlx5) - NIC VF offload of L2 bridging - support IRQ distribution to Sub-functions - Marvell (prestera): - add flower and match all - devlink trap - link aggregation - Netronome (nfp): connection tracking offload - Intel 1GE (igc): add AF_XDP support - Marvell DPU (octeontx2): ingress ratelimit offload - Google vNIC (gve): new ring/descriptor format support - Qualcomm mobile (rmnet & ipa): inline checksum offload support - MediaTek WiFi (mt76) - mt7915 MSI support - mt7915 Tx status reporting - mt7915 thermal sensors support - mt7921 decapsulation offload - mt7921 enable runtime pm and deep sleep - Realtek WiFi (rtw88) - beacon filter support - Tx antenna path diversity support - firmware crash information via devcoredump - Qualcomm WiFi (wcn36xx) - Wake-on-WLAN support with magic packets and GTK rekeying - Micrel PHY (ksz886x/ksz8081): add cable test support" * tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits) tcp: change ICSK_CA_PRIV_SIZE definition tcp_yeah: check struct yeah size at compile time gve: DQO: Fix off by one in gve_rx_dqo() stmmac: intel: set PCI_D3hot in suspend stmmac: intel: Enable PHY WOL option in EHL net: stmmac: option to enable PHY WOL with PMT enabled net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del} net: use netdev_info in ndo_dflt_fdb_{add,del} ptp: Set lookup cookie when creating a PTP PPS source. net: sock: add trace for socket errors net: sock: introduce sk_error_report net: dsa: replay the local bridge FDB entries pointing to the bridge dev too net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev net: dsa: include fdb entries pointing to bridge in the host fdb list net: dsa: include bridge addresses which are local in the host fdb list net: dsa: sync static FDB entries on foreign interfaces to hardware net: dsa: install the host MDB and FDB entries in the master's RX filter net: dsa: reference count the FDB addresses at the cross-chip notifier level net: dsa: introduce a separate cross-chip notifier type for host FDBs net: dsa: reference count the MDB entries at the cross-chip notifier level ...
2021-06-17docs: networking: devlink: avoid using ReST :doc:`foo` markupMauro Carvalho Chehab
The :doc:`foo` tag is auto-generated via automarkup.py. So, use the filename at the sources, instead of :doc:`foo`. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/4553858bc9a5442eba6d71caff8047e84ece4d9b.1623824363.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-06-17documentation: networking: devlink: fix prestera.rst formatting that causes ↵Oleksandr Mazur
build warnings Fixes: 66826c43e63d ("documentation: networking: devlink: add prestera switched driver Documentation") Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-14documentation: networking: devlink: add prestera switched driver DocumentationOleksandr Mazur
Add documentation for the devlink feature prestera switchdev driver supports: add description for the support of the driver-specific devlink traps (include both traps with action TRAP and action DROP); Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-02Documentation: devlink rate objectsDmytro Linkin
Add devlink rate objects section at devlink port documentation. Add devlink rate support info at netdevsim devlink documentation. Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-13docs: net: add missing devlink health cmd - triggerJakub Kicinski
Documentation is missing and it's not very clear what this callback is for - presumably testing the recovery? Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-13docs: net: tweak devlink health documentationJakub Kicinski
Minor tweaks and improvement of wording about the diagnose callback. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-13devlink: fix typo in documentationEva Dengler
This commit fixes three spelling typos in devlink-dpipe.rst and devlink-port.rst. Signed-off-by: Eva Dengler <eva.dengler@fau.de> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-11net: ti: am65-cpsw-nuss: Add devlink supportVignesh Raghavendra
AM65 NUSS ethernet switch on K3 devices can be configured to work either in independent mac mode where each port acts as independent network interface (multi mac) or switch mode. Add devlink hooks to provide a way to switch b/w these modes. Rationale to use devlink instead of defaulting to bridge mode is that SoC use cases require to support multiple independent MAC ports with no switching so that users can use software bridges with multi-mac configuration (e.g: to support LAG, HSR/PRP, etc). Also, switching between multi mac and switch mode requires significant Port and ALE reconfiguration, therefore is easier to be made as part of mode change devlink hooks. It also allows to keep user interface similar to what was implemented for the previous generation of TI CPSW IP (on AM33/AM43/AM57 SoCs). Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-01-28Merge tag 'mlx5-updates-2021-01-13' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5 subfunction support Parav Pandit says: This patchset introduces support for mlx5 subfunction (SF). A subfunction is a lightweight function that has a parent PCI function on which it is deployed. mlx5 subfunction has its own function capabilities and its own resources. This means a subfunction has its own dedicated queues(txq, rxq, cq, eq). These queues are neither shared nor stolen from the parent PCI function. When subfunction is RDMA capable, it has its own QP1, GID table and rdma resources neither shared nor stolen from the parent PCI function. A subfunction has dedicated window in PCI BAR space that is not shared with the other subfunctions or parent PCI function. This ensures that all class devices of the subfunction accesses only assigned PCI BAR space. A Subfunction supports eswitch representation through which it supports tc offloads. User must configure eswitch to send/receive packets from/to subfunction port. Subfunctions share PCI level resources such as PCI MSI-X IRQs with their other subfunctions and/or with its parent PCI function. Subfunction support is discussed in detail in RFC [1] and [2]. RFC [1] and extension [2] describes requirements, design and proposed plumbing using devlink, auxiliary bus and sysfs for systemd/udev support. Functionality of this patchset is best explained using real examples further below. overview: -------- A subfunction can be created and deleted by a user using devlink port add/delete interface. A subfunction can be configured using devlink port function attribute before its activated. When a subfunction is activated, it results in an auxiliary device on the host PCI device where it is deployed. A driver binds to the auxiliary device that further creates supported class devices. example subfunction usage sequence: ----------------------------------- Change device to switchdev mode: $ devlink dev eswitch set pci/0000:06:00.0 mode switchdev Add a devlink port of subfunction flavour: $ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88 Configure mac address of the port function: $ devlink port function set ens2f0npf0sf88 hw_addr 00:00:00:00:88:88 Now activate the function: $ devlink port function set ens2f0npf0sf88 state active Now use the auxiliary device and class devices: $ devlink dev show pci/0000:06:00.0 auxiliary/mlx5_core.sf.4 $ ip link show 127: ens2f0np0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 24:8a:07:b3:d1:12 brd ff:ff:ff:ff:ff:ff altname enp6s0f0np0 129: p0sf88: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 00:00:00:00:88:88 brd ff:ff:ff:ff:ff:ff $ rdma dev show 43: rdmap6s0f0: node_type ca fw 16.29.0550 node_guid 248a:0703:00b3:d112 sys_image_guid 248a:0703:00b3:d112 44: mlx5_0: node_type ca fw 16.29.0550 node_guid 0000:00ff:fe00:8888 sys_image_guid 248a:0703:00b3:d112 After use inactivate the function: $ devlink port function set ens2f0npf0sf88 state inactive Now delete the subfunction port: $ devlink port del ens2f0npf0sf88 [1] https://lore.kernel.org/netdev/20200519092258.GF4655@nanopsycho/ [2] https://marc.info/?l=linux-netdev&m=158555928517777&w=2 ================= * tag 'mlx5-updates-2021-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux: net/mlx5: Add devlink subfunction port documentation devlink: Extend devlink port documentation for subfunctions devlink: Add devlink port documentation net/mlx5: SF, Port function state change support net/mlx5: SF, Add port add delete functionality net/mlx5: E-switch, Add eswitch helpers for SF vport net/mlx5: E-switch, Prepare eswitch to handle SF vport net/mlx5: SF, Add auxiliary device driver net/mlx5: SF, Add auxiliary device support net/mlx5: Introduce vhca state event notifier devlink: Support get and set state of port function devlink: Support add and delete devlink port devlink: Introduce PCI SF port flavour and port attribute devlink: Prepare code to fill multiple port function attributes ==================== Link: https://lore.kernel.org/r/20210122193658.282884-1-saeed@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-27devlink: Add DMAC filter generic packet trapAya Levin
Add packet trap that can report packets that were dropped due to destination MAC filtering. Signed-off-by: Aya Levin <ayal@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-22mlxsw: Register physical ports as a devlink resourceDanielle Ratson
The switch ASIC has a limited capacity of physical ('flavour physical' in devlink terminology) ports that it can support. While each system is brought up with a different number of ports, this number can be increased via splitting up to the ASIC's limit. Expose physical ports as a devlink resource so that user space will have visibility to the maximum number of ports that can be supported and the current occupancy. In addition, add a "Generic Resources" section in devlink-resource documentation so the different drivers will be aligned by the same resource name when exposing to user space. Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-22devlink: Extend devlink port documentation for subfunctionsParav Pandit
Add devlink port documentation for subfunction management. Signed-off-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-01-22devlink: Add devlink port documentationParav Pandit
Added documentation for devlink port and port function related commands. Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2020-11-24devlink: Add blackhole_nexthop trapIdo Schimmel
Add a packet trap to report packets that were dropped due to a blackhole nexthop. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-06netdevsim: Add devlink resource for nexthopsIdo Schimmel
The Spectrum ASIC has a dedicated table where nexthops (i.e., adjacency entries) are populated. The size of this table can be controlled via devlink-resource. Add such a resource to netdevsim so that its occupancy will reflect the number of nexthop objects currently programmed to the device. By limiting the size of the resource, error paths could be exercised and tested. Example output: # devlink resource show netdevsim/netdevsim10 netdevsim/netdevsim10: name IPv4 size unlimited unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables none resources: name fib size unlimited occ 4 unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables none name fib-rules size unlimited occ 3 unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables none name IPv6 size unlimited unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables none resources: name fib size unlimited occ 1 unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables none name fib-rules size unlimited occ 2 unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables none name nexthops size unlimited occ 0 unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables none Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-28ice: docs fix a devlink info that broke a tableMauro Carvalho Chehab
Changeset 410d06879c01 ("ice: add the DDP Track ID to devlink info") added description for a new devlink field, but forgot to add one of its columns, causing it to break: .../Documentation/networking/devlink/ice.rst:15: WARNING: Error parsing content block for the "list-table" directive: uniform two-level bullet list expected, but row 11 does not contain the same number of items as row 1 (3 vs 4). .. list-table:: devlink info versions implemented :widths: 5 5 5 90 ... * - ``fw.app.bundle_id`` - 0xc0000001 - Unique identifier for the DDP package loaded in the device. Also referred to as the DDP Track ID. Can be used to uniquely identify the specific DDP package. Add the type field to the ``fw.app.bundle_id`` row. Fixes: 410d06879c01 ("ice: add the DDP Track ID to devlink info") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/84ae28bda1987284033966b7b56a4b27ae40713b.1603791716.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-09ice: add the DDP Track ID to devlink infoJacob Keller
Add "fw.app.bundle_id" to display the DDP Track ID of the active DDP package. This id is similar to "fw.bundle_id" and is a unique identifier for the DDP package that is loaded in the device. Each new DDP has a unique Track ID generated for it, and the ID can be used to identify and track the DDP package. Add documentation for the new devlink info version. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-09devlink: Add Documentation/networking/devlink/devlink-reload.rstMoshe Shemesh
Add devlink reload rst documentation file. Update index file to include it. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-09devlink: Add enable_remote_dev_reset generic parameterMoshe Shemesh
The enable_remote_dev_reset devlink param flags that the host admin allows device resets that can be initiated by other hosts. This parameter is useful for setups where a device is shared by different hosts, such as multi-host setup. Once the user set this parameter to false, the driver should NACK any attempt to reset the device while the driver is loaded. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-02devlink: add parser error drop packet trapsIoana Ciornei
Add parser error drop packet traps, so that capable device driver could register them with devlink. The new packet trap group holds any drops of packets which were marked by the device as erroneous during header parsing. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25ice: add support for flash update overwrite maskJacob Keller
Support the recently added DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK parameter in the ice flash update handler. Convert the overwrite mask bitfield into the appropriate preservation level used by the firmware when updating. Because there is no equivalent preservation level for overwriting only identifiers, this combination is rejected by the driver as not supported with an appropriate extended ACK message. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25devlink: introduce flash update overwrite maskJacob Keller
Sections of device flash may contain settings or device identifying information. When performing a flash update, it is generally expected that these settings and identifiers are not overwritten. However, it may sometimes be useful to allow overwriting these fields when performing a flash update. Some examples include, 1) customizing the initial device config on first programming, such as overwriting default device identifying information, or 2) reverting a device configuration to known good state provided in the new firmware image, or 3) in case it is suspected that current firmware logic for managing the preservation of fields during an update is broken. Although some devices are able to completely separate these types of settings and fields into separate components, this is not true for all hardware. To support controlling this behavior, a new DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK is defined. This is an nla_bitfield32 which will define what subset of fields in a component should be overwritten during an update. If no bits are specified, or of the overwrite mask is not provided, then an update should not overwrite anything, and should maintain the settings and identifiers as they are in the previous image. If the overwrite mask has the DEVLINK_FLASH_OVERWRITE_SETTINGS bit set, then the device should be configured to overwrite any of the settings in the requested component with settings found in the provided image. Similarly, if the DEVLINK_FLASH_OVERWRITE_IDENTIFIERS bit is set, the device should be configured to overwrite any device identifiers in the requested component with the identifiers from the image. Multiple overwrite modes may be combined to indicate that a combination of the set of fields that should be overwritten. Drivers which support the new overwrite mask must set the DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK in the supported_flash_update_params field of their devlink_ops. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03devlink: Add early_drop trapAmit Cohen
Add the packet trap that can report packets that were ECN marked due to RED AQM. Signed-off-by: Amit Cohen <amitc@mellanox.com> Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Resolved kernel/bpf/btf.c using instructions from merge commit 69138b34a7248d2396ab85c8652e20c0c39beaba Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-29mlxsw: spectrum: Use different trap group for externally routed packetsIdo Schimmel
Cited commit mistakenly removed the trap group for externally routed packets (e.g., via the management interface) and grouped locally routed and externally routed packet traps under the same group, thereby subjecting them to the same policer. This can result in problems, for example, when FRR is restarted and suddenly all transient traffic is trapped to the CPU because of a default route through the management interface. Locally routed packets required to re-establish a BGP connection will never reach the CPU and the routing tables will not be re-populated. Fix this by using a different trap group for externally routed packets. Fixes: 8110668ecd9a ("mlxsw: spectrum_trap: Register layer 3 control traps") Reported-by: Alex Veber <alexve@mellanox.com> Tested-by: Alex Veber <alexve@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07ice: add documentation for device-caps regionJacob Keller
The recent change by commit 8d7aab3515fa ("ice: implement snapshot for device capabilities") to implement the device-caps region for the ice driver forgot to document it. Add documentation to the ice devlink documentation file describing the new region and add some sample output to the shell commands provided as an example. Fixes: 8d7aab3515fa ("ice: implement snapshot for device capabilities") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22devlink: Add support for board.serial_number to info_get cb.Vasundhara Volam
Board serial number is a serial number, often available in PCI *Vital Product Data*. Also, update devlink-info.rst documentation file. Cc: Jiri Pirko <jiri@mellanox.com> Cc: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-10docs: networkng: convert sja1105's devlink info to RTSJakub Kicinski
A new file snuck into the tree after all existing documentation was converted to RST. Convert sja1105's devlink info and move it where the rest of the drivers are documented. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com> Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add ACL control packet trapsIdo Schimmel
Add packet traps for packets that are sampled / trapped by ACLs, so that capable drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add layer 3 control packet trapsIdo Schimmel
Add layer 3 control packet traps such as ARP and DHCP, so that capable device drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add layer 2 control packet trapsIdo Schimmel
Add layer 2 control packet traps such as STP and IGMP query, so that capable device drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add 'control' trap typeIdo Schimmel
This type is used for traps that trap control packets such as ARP request and IGMP query to the CPU. Do not report such packets to the kernel's drop monitor as they were not dropped by the device no encountered an exception during forwarding. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add 'mirror' trap actionIdo Schimmel
The action is used by control traps such as IGMP query. The packet is flooded by the device, but also trapped to the CPU in order for the software bridge to mark the receiving port as a multicast router port. Such packets are marked with 'skb->offload_fwd_mark = 1' in order to prevent the software bridge from flooding them again. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Create dedicated trap group for layer 3 exceptionsIdo Schimmel
Packets that hit exceptions during layer 3 forwarding must be trapped to the CPU for the control plane to function properly. Create a dedicated group for them, so that user space could choose to assign a different policer for them. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-21ice: report netlist version in .info_getJacob Keller
The flash memory for the ice hardware contains a block of information used for link management called the Netlist module. As this essentially represents another section of firmware, add its version information to the output of the driver's .info_get handler. This includes both a version and the first few bytes of a hash of the module contents. fw.netlist -> the version information extracted from the netlist module fw.netlist.build-> first 4 bytes of the hash of the contents, similar to fw.mgmt.build Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Conflicts were all overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04docs: devlink: clarify the scope of snapshot idJakub Kicinski
In past discussions Jiri explained snapshot ids are cross-region. Explain this in the docs. v3: new patch Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04devlink: let kernel allocate region snapshot idJakub Kicinski
Currently users have to choose a free snapshot id before calling DEVLINK_CMD_REGION_NEW. This is potentially racy and inconvenient. Make the DEVLINK_ATTR_REGION_SNAPSHOT_ID optional and try to allocate id automatically. Send a message back to the caller with the snapshot info. Example use: $ devlink region new netdevsim/netdevsim1/dummy netdevsim/netdevsim1/dummy: snapshot 1 $ id=$(devlink -j region new netdevsim/netdevsim1/dummy | \ jq '.[][][][]') $ devlink region dump netdevsim/netdevsim1/dummy snapshot $id [...] $ devlink region del netdevsim/netdevsim1/dummy snapshot $id v4: - inline the notification code v3: - send the notification only once snapshot creation completed. v2: - don't wrap the line containing extack; - add a few sentences to the docs. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01ice: cleanup language in ice.rst for fw.appJacob Keller
The documentation for the ice driver around "fw.app" has a spelling mistake in variation. Additionally, the language of "shall have a unique name" sounds like a requirement. Reword this to read more like a description or property. Reported-by: Benjamin Fisher <benjamin.l.fisher@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Jakub Kicinski <kubakici@wp.pl> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-09Documentation: devlink: fix broken link warningLothar Rubusch
At 'make htmldocs' the following warning is thrown: Documentation/networking/devlink/devlink-trap.rst:302: WARNING: undefined label: generic-packet-trap-groups Fixes the warning by setting the label to the specified header, within the same document. Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30Documentation: Add description of packet trap policersIdo Schimmel
Extend devlink-trap documentation with information about packet trap policers. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29devlink: don't wrap commands in rST shell blocksJacob Keller
The devlink-region.rst and ice-region.rst documentation files wrapped some lines within shell code blocks due to being longer than 80 lines. It was pointed out during review that wrapping these lines shouldn't be done. Fix these two rST files and remove the line wrapping on these shell command examples. Reported-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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