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2024-07-11ice: remove eswitch rebuildMichal Swiatkowski3-24/+0
Since the port representors are added one by one there is no need to do eswitch rebuild. Each port representor is detached and attached in VF reset path. Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-07-11ice: Add support for devlink local_forwarding paramPawel Kaminski5-1/+166
Add support for driver-specific devlink local_forwarding param. Supported values are "enabled", "disabled" and "prioritized". Default configuration is set to "enabled". Add documentation in networking/devlink/ice.rst. In previous generations of Intel NICs the transmit scheduler was only limited by PCIe bandwidth when scheduling/assigning hairpin-bandwidth between VFs. Changes to E810 HW design introduced scheduler limitation, so that available hairpin-bandwidth is bound to external port speed. In order to address this limitation and enable NFV services such as "service chaining" a knob to adjust the scheduler config was created. Driver can send a configuration message to the FW over admin queue and internal FW logic will reconfigure HW to prioritize and add more BW to VF to VF traffic. An end result, for example, 10G port will no longer limit hairpin-bandwidth to 10G and much higher speeds can be achieved. Devlink local_forwarding param set to "prioritized" enables higher hairpin-bandwitdh on related PFs. Configuration is applicable only to 8x10G and 4x25G cards. Changing local_forwarding configuration will trigger CORER reset in order to take effect. Example command to change current value: devlink dev param set pci/0000:b2:00.3 name local_forwarding \ value prioritized \ cmode runtime Co-developed-by: Michal Wilczynski <michal.wilczynski@intel.com> Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Pawel Kaminski <pawel.kaminski@intel.com> Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-07-11i40e: correct i40e_addr_to_hkey() name in kdocSimon Horman1-1/+1
Correct name of i40e_addr_to_hkey() in it's kdoc. kernel-doc -none reports: drivers/net/ethernet/intel/i40e/i40e.h:739: warning: expecting prototype for i40e_mac_to_hkey(). Prototype was for i40e_addr_to_hkey() instead Signed-off-by: Simon Horman <horms@kernel.org> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-07-11net: intel: Remove MODULE_AUTHORsTony Nguyen14-14/+0
We are moving away from the Sourceforge email address. Rather than removing or updating the email for the affected entries, remove the MODULE_AUTHOR altogether as its usage is incorrect [1]. Link: https://lore.kernel.org/netdev/20200626115236.7f36d379@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/ [1] Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Alexander Lobakin <aleksander.lobakin@intel.com> # libeth, libie Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-07-10ice: Implement driver functionality to dump serdes equalizer valuesAnil Samal5-2/+245
To debug link issues in the field, serdes Tx/Rx equalizer values help to determine the health of serdes lane. Extend 'ethtool -d' option to dump serdes Tx/Rx equalizer. The following list of equalizer param is supported a. rx_equalization_pre2 b. rx_equalization_pre1 c. rx_equalization_post1 d. rx_equalization_bflf e. rx_equalization_bfhf f. rx_equalization_drate g. tx_equalization_pre1 h. tx_equalization_pre3 i. tx_equalization_atten j. tx_equalization_post1 k. tx_equalization_pre2 Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Anil Samal <anil.samal@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20240709202951.2103115-4-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-10ice: Implement driver functionality to dump fec statisticsAnil Samal5-0/+403
To debug link issues in the field, it is paramount to dump fec corrected/uncorrected block counts from firmware. Firmware requires PCS quad number and PCS port number to read FEC statistics. Current driver implementation does not maintain above physical properties of a port. Add new driver API to derive physical properties of an input port.These properties include PCS quad number, PCS port number, serdes lane count, primary serdes lane number. Extend ethtool option '--show-fec' to support fec statistics. The IEEE standard mandates two sets of counters: - 30.5.1.1.17 aFECCorrectedBlocks - 30.5.1.1.18 aFECUncorrectableBlocks Standard defines above statistics per lane but current implementation supports total FEC statistics per port i.e. sum of all lane per port. Find sample output below FEC parameters for ens21f0np0: Supported/Configured FEC encodings: Auto RS BaseR Active FEC encoding: RS Statistics: corrected_blocks: 0 uncorrectable_blocks: 0 Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Anil Samal <anil.samal@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20240709202951.2103115-3-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-10ice: Extend Sideband Queue command to support flagsAnil Samal3-13/+14
Current driver implementation for Sideband Queue supports a fixed flag (ICE_AQ_FLAG_RD). To retrieve FEC statistics from firmware, Sideband Queue command is used with a different flag. Extend API for Sideband Queue command to use 'flags' as input argument. Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Anil Samal <anil.samal@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20240709202951.2103115-2-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-10dt-bindings: net: convert enetc to yamlFrank Li4-119/+161
Convert enetc device binding file to yaml. Split to 3 yaml files, 'fsl,enetc.yaml', 'fsl,enetc-mdio.yaml', 'fsl,enetc-ierb.yaml'. Additional Changes: - Add pci<vendor id>,<production id> in compatible string. - Ref to common ethernet-controller.yaml and mdio.yaml. - Add Wei fang, Vladimir and Claudiu as maintainer. - Update ENETC description. - Remove fixed-link part. Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20240709214841.570154-1-Frank.Li@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-10dt-bindings: net: realtek,rtl82xx: Document RTL8211F LED supportMarek Vasut1-3/+14
The RTL8211F PHY does support LED configuration, document support for LEDs in the binding document. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20240708211649.165793-1-marex@denx.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-10net: phy: aquantia: add support for aqr115cBartosz Golaszewski1-0/+26
Add support for a new model to the Aquantia driver. This PHY supports 2.5 gigabit speeds. The PHY mode is referred to by the manufacturer as Overclocked SGMII (OCSGMII) but this actually is just 2500BASEX without in-band signalling so reuse the existing mode to avoid changing the uAPI. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-07-10net: phy: aquantia: wait for the GLOBAL_CFG to start returning real valuesBartosz Golaszewski1-1/+7
When the PHY is first coming up (or resuming from suspend), it's possible that although the FW status shows as running, we still see zeroes in the GLOBAL_CFG set of registers and cannot determine available modes. Since all models support 10M, add a poll and wait the config to become available. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-07-10net: phy: aquantia: wait for FW reset before checking the vendor IDBartosz Golaszewski1-0/+4
Checking the firmware register before it complete the boot process makes no sense, it will report 0 even if FW is available from internal memory. Always wait for FW to boot before continuing or we'll unnecessarily try to load it from nvmem/filesystem and fail. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-07-10net: phy: aquantia: rename and export aqr107_wait_reset_complete()Bartosz Golaszewski2-3/+5
This function is quite generic in this driver and not limited to aqr107. We will use it outside its current compilation unit soon so rename it and declare it in the header. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-07-09netxen_nic: Use {low,upp}er_32_bits() helpersGeert Uytterhoeven1-5/+2
Use the existing {low,upp}er_32_bits() helpers instead of defining custom variants. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/319d4a5313ac75f7bbbb6b230b6802b18075c3e0.1720430602.git.geert+renesas@glider.be Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09net/mlx5e: CT: Initialize err to 0 to avoid warningCosmin Ratiu1-1/+1
It is theoretically possible to return bogus uninitialized values from mlx5_tc_ct_entry_replace_rules, even though in practice this will never be the case as the flow rule will be part of at least the regular ct table or the ct nat table, if not both. But to reduce noise, initialize err to 0. Fixes: 49d37d05f216 ("net/mlx5: CT: Separate CT and CT-NAT tuple entries") Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20240708080025.1593555-11-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09net/mlx5e: SHAMPO, Add missing aggregate counterDragos Tatulea1-0/+2
When the rx_hds_nodata_packets/bytes counters were added, the aggregate counters were omitted. This patch adds them. Fixes: e95c5b9e8912 ("net/mlx5e: SHAMPO, Add header-only ethtool counters for header data split") Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20240708080025.1593555-10-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09net/mlx5: DR, Remove definer functions from SW Steering APIYevgeny Kliteynik2-5/+5
No need to expose definer get/put functions as part of SW Steering API - they are internal functions. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com> Reviewed-by: Alex Vesker <valex@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20240708080025.1593555-9-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09mlxsw: pci: Lock configuration space of upstream bridge during resetIdo Schimmel1-0/+6
The driver triggers a "Secondary Bus Reset" (SBR) by calling __pci_reset_function_locked() which asserts the SBR bit in the "Bridge Control Register" in the configuration space of the upstream bridge for 2ms. This is done without locking the configuration space of the upstream bridge port, allowing user space to access it concurrently. Linux 6.11 will start warning about such unlocked resets [1][2]: pcieport 0000:00:01.0: unlocked secondary bus reset via: pci_reset_bus_function+0x51c/0x6a0 Avoid the warning and the concurrent access by locking the configuration space of the upstream bridge prior to the reset and unlocking it afterwards. [1] https://lore.kernel.org/all/171711746953.1628941.4692125082286867825.stgit@dwillia2-xfh.jf.intel.com/ [2] https://lore.kernel.org/all/20240531213150.GA610983@bhelgaas/ Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://patch.msgid.link/9937b0afdb50f2f2825945393c94c093c04a5897.1720447210.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09mlxsw: core_thermal: Report valid current state during cooling device registrationIdo Schimmel1-26/+25
Commit 31a0fa0019b0 ("thermal/debugfs: Pass cooling device state to thermal_debug_cdev_add()") changed the thermal core to read the current state of the cooling device as part of the cooling device's registration. This is incompatible with the current implementation of the cooling device operations in mlxsw, leading to initialization failure with errors such as: mlxsw_spectrum 0000:01:00.0: Failed to register cooling device mlxsw_spectrum 0000:01:00.0: cannot register bus device The reason for the failure is that when the get current state operation is invoked the driver tries to derive the index of the cooling device by walking a per thermal zone array and looking for the matching cooling device pointer. However, the pointer is returned from the registration function and therefore only set in the array after the registration. The issue was later fixed by commit 1af89dedc8a5 ("thermal: core: Do not fail cdev registration because of invalid initial state") by not failing the registration of the cooling device if it cannot report a valid current state during registration, although drivers are responsible for ensuring that this will not happen. Therefore, make sure the driver is able to report a valid current state for the cooling device during registration by passing to the registration function a per cooling device private data that already has the cooling device index populated. While at it, call thermal_cooling_device_unregister() unconditionally since the function returns immediately if the cooling device pointer is NULL. Reviewed-by: Vadim Pasternak <vadimp@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://patch.msgid.link/c823c4678b6b7afb902c35b3551c81a053afd110.1720447210.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09mlxsw: Warn about invalid accesses to array fieldsPetr Machata1-0/+4
A forgotten or buggy variable initialization can cause out-of-bounds access to a register or other item array field. For an overflow, such access would mangle adjacent parts of the register payload. For an underflow, due to all variables being unsigned, the access would likely trample unrelated memory. Since neither is correct, replace these accesses with accesses at the index of 0, and warn about the issue. Suggested-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://patch.msgid.link/b988fb265c2f6c1206fe12d5bfdcfa188b7672d1.1720447210.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09selftests: drv-net: rss_ctx: test flow rehashing without impacting trafficJakub Kicinski1-1/+31
Some workloads may want to rehash the flows in response to an imbalance. Most effective way to do that is changing the RSS key. Check that changing the key does not cause link flaps or traffic disruption. Disrupting traffic for key update is not incorrect, but makes the key update unusable for rehashing under load. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240708213627.226025-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09selftests: drv-net: rss_ctx: check behavior of indirection table resizingJakub Kicinski1-1/+36
Some devices dynamically increase and decrease the size of the RSS indirection table based on the number of enabled queues. When that happens driver must maintain the balance of entries (preferably duplicating the smaller table). Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240708213627.226025-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09selftests: drv-net: rss_ctx: test queue changes vs user RSS configJakub Kicinski1-1/+80
By default main RSS table should change to include all queues. When user sets a specific RSS config the driver should preserve it, even when queue count changes. Driver should refuse to deactivate queues used in the user-set RSS config. For additional contexts driver should still refuse to deactivate queues in use. Whether the contexts should get resized like context 0 when queue count increases is a bit unclear. I anticipate most drivers today don't do that. Since main use case for additional contexts is to set the indir table - it doesn't seem worthwhile to care about behavior of the default table too much. Don't test that. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240708213627.226025-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09selftests: drv-net: rss_ctx: factor out send traffic and checkJakub Kicinski1-19/+39
Wrap up sending traffic and checking in which queues it landed in a helper. The method used for testing is to send a lot of iperf traffic and check which queues received the most packets. Those should be the queues where we expect iperf to land - either because we installed a filter for the port iperf uses, or we didn't and expect it to use context 0. Contexts get disjoint queue sets, but the main context (AKA context 0) may receive some background traffic (noise). Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240708213627.226025-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09selftests: drv-net: rss_ctx: fix cleanup in the basic testJakub Kicinski1-4/+4
The basic test may fail without resetting the RSS indir table. Use the .exec() method to run cleanup early since we re-test with traffic that returning to default state works. While at it reformat the doc a tiny bit. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240708213627.226025-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09net: ti: icssg-prueth: add missing depsGuillaume La Roque1-0/+1
Add missing dependency on NET_SWITCHDEV. Fixes: abd5576b9c57 ("net: ti: icssg-prueth: Add support for ICSSG switch firmware") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guillaume La Roque <glaroque@baylibre.com> Reviewed-by: MD Danish Anwar <danishanwar@ti.com> Link: https://patch.msgid.link/20240708-net-deps-v2-1-b22fb74da2a3@baylibre.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09dt-bindings: net: fsl,fman: add ptimer-handle propertyFrank Li1-0/+4
Add ptimer-handle property to link to ptp-timer node handle. Fix below warning: arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dtb: fman@1a00000: 'ptimer-handle' do not match any of the regexes: '^ethernet@[a-f0-9]+$', '^mdio@[a-f0-9]+$', '^muram@[a-f0-9]+$', '^phc@[a-f0-9]+$', '^port@[a-f0-9]+$', 'pinctrl-[0-9]+' Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20240708180949.1898495-2-Frank.Li@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09dt-bindings: net: fsl,fman: allow dma-coherent propertyFrank Li1-0/+2
Add dma-coherent property to fix below warning. arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dtb: fman@1a00000: 'dma-coherent', 'ptimer-handle' do not match any of the regexes: '^ethernet@[a-f0-9]+$', '^mdio@[a-f0-9]+$', '^muram@[a-f0-9]+$', '^phc@[a-f0-9]+$', '^port@[a-f0-9]+$', 'pinctrl-[0-9]+' from schema $id: http://devicetree.org/schemas/net/fsl,fman.yaml# Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20240708180949.1898495-1-Frank.Li@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09net: tls: Pass union tls_crypto_context pointer to memzero_explicitSimon Horman1-3/+6
Pass union tls_crypto_context pointer, rather than struct tls_crypto_info pointer, to memzero_explicit(). The address of the pointer is the same before and after. But the new construct means that the size of the dereferenced pointer type matches the size being zeroed. Which aids static analysis. As reported by Smatch: .../tls_main.c:842 do_tls_setsockopt_conf() error: memzero_explicit() 'crypto_info' too small (4 vs 56) No functional change intended. Compile tested only. Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240708-tls-memzero-v2-1-9694eaf31b79@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09selftests: forwarding: Make vxlan-bridge-1d pass on debug kernelsIdo Schimmel1-4/+4
The ageing time used by the test is too short for debug kernels and results in entries being aged out prematurely [1]. Fix by increasing the ageing time. The same change was done for the VLAN-aware version of the test in commit dfbab74044be ("selftests: forwarding: Make vxlan-bridge-1q pass on debug kernels"). [1] # ./vxlan_bridge_1d.sh [...] # TEST: VXLAN: flood before learning [ OK ] # TEST: VXLAN: show learned FDB entry [ OK ] # TEST: VXLAN: learned FDB entry [FAIL] # veth3: Expected to capture 0 packets, got 4. # RTNETLINK answers: No such file or directory # TEST: VXLAN: deletion of learned FDB entry [ OK ] # TEST: VXLAN: Ageing of learned FDB entry [FAIL] # veth3: Expected to capture 0 packets, got 2. [...] Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240707095458.2870260-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-09net: phy: microchip: lan937x: add support for 100BaseTX PHYOleksij Rempel1-1/+125
Add support of 100BaseTX PHY build in to LAN9371 and LAN9372 switches. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com> Link: https://patch.msgid.link/20240706154201.1456098-1-o.rempel@pengutronix.de Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-07-09udp: Remove duplicate included header file trace/events/udp.hThorsten Blum1-1/+0
Remove duplicate included header file trace/events/udp.h and the following warning reported by make includecheck: trace/events/udp.h is included more than once Compile-tested only. Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240706071132.274352-2-thorsten.blum@toblux.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-07-09net: tn40xx: add per queue netdev-genl stats supportFUJITA Tomonori2-2/+53
Add support for the netdev-genl per queue stats API. ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \ --dump qstats-get --json '{"scope":"queue"}' [{'ifindex': 4, 'queue-id': 0, 'queue-type': 'rx', 'rx-alloc-fail': 0, 'rx-bytes': 266613, 'rx-packets': 3325}, {'ifindex': 4, 'queue-id': 0, 'queue-type': 'tx', 'tx-bytes': 142823367, 'tx-packets': 2387}] Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20240706064324.137574-1-fujita.tomonori@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-07-09sctp: Fix typos and improve commentsThorsten Blum1-4/+4
Fix typos s/steam/stream/ and spell out Schedule/Unschedule in the comments. Compile-tested only. Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240704202558.62704-2-thorsten.blum@toblux.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-07-09l2tp: fix possible UAF when cleaning up tunnelsJames Chapman1-4/+7
syzbot reported a UAF caused by a race when the L2TP work queue closes a tunnel at the same time as a userspace thread closes a session in that tunnel. Tunnel cleanup is handled by a work queue which iterates through the sessions contained within a tunnel, and closes them in turn. Meanwhile, a userspace thread may arbitrarily close a session via either netlink command or by closing the pppox socket in the case of l2tp_ppp. The race condition may occur when l2tp_tunnel_closeall walks the list of sessions in the tunnel and deletes each one. Currently this is implemented using list_for_each_safe, but because the list spinlock is dropped in the loop body it's possible for other threads to manipulate the list during list_for_each_safe's list walk. This can lead to the list iterator being corrupted, leading to list_for_each_safe spinning. One sequence of events which may lead to this is as follows: * A tunnel is created, containing two sessions A and B. * A thread closes the tunnel, triggering tunnel cleanup via the work queue. * l2tp_tunnel_closeall runs in the context of the work queue. It removes session A from the tunnel session list, then drops the list lock. At this point the list_for_each_safe temporary variable is pointing to the other session on the list, which is session B, and the list can be manipulated by other threads since the list lock has been released. * Userspace closes session B, which removes the session from its parent tunnel via l2tp_session_delete. Since l2tp_tunnel_closeall has released the tunnel list lock, l2tp_session_delete is able to call list_del_init on the session B list node. * Back on the work queue, l2tp_tunnel_closeall resumes execution and will now spin forever on the same list entry until the underlying session structure is freed, at which point UAF occurs. The solution is to iterate over the tunnel's session list using list_first_entry_not_null to avoid the possibility of the list iterator pointing at a list item which may be removed during the walk. Also, have l2tp_tunnel_closeall ref each session while it processes it to prevent another thread from freeing it. cpu1 cpu2 --- --- pppol2tp_release() spin_lock_bh(&tunnel->list_lock); for (;;) { session = list_first_entry_or_null(&tunnel->session_list, struct l2tp_session, list); if (!session) break; list_del_init(&session->list); spin_unlock_bh(&tunnel->list_lock); l2tp_session_delete(session); l2tp_session_delete(session); spin_lock_bh(&tunnel->list_lock); } spin_unlock_bh(&tunnel->list_lock); Calling l2tp_session_delete on the same session twice isn't a problem per-se, but if cpu2 manages to destruct the socket and unref the session to zero before cpu1 progresses then it would lead to UAF. Reported-by: syzbot+b471b7c936301a59745b@syzkaller.appspotmail.com Reported-by: syzbot+c041b4ce3a6dfd1e63e2@syzkaller.appspotmail.com Fixes: d18d3f0a24fc ("l2tp: replace hlist with simple list for per-tunnel session list") Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: Tom Parkin <tparkin@katalix.com> Link: https://patch.msgid.link/20240704152508.1923908-1-jchapman@katalix.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-07-08net: stmmac: qcom-ethqos: enable SGMII loopback during DMA reset on sa8775p-ride-r3Bartosz Golaszewski1-0/+23
On sa8775p-ride-r3 the RX clocks from the AQR115C PHY are not available at the time of the DMA reset. We can however extract the RX clock from the internal SERDES block. Once the link is up, we can revert to the previous state. The AQR115C PHY doesn't support in-band signalling so we can count on getting the link up notification and safely reuse existing callbacks which are already used by another HW quirk workaround which enables the functional clock to avoid a DMA reset due to timeout. Only enable loopback on revision 3 of the board - check the phy_mode to make sure. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20240703181500.28491-3-brgl@bgdev.pl Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-08net: stmmac: qcom-ethqos: add support for 2.5G BASEX modeBartosz Golaszewski1-0/+11
Add support for 2.5G speed in 2500BASEX mode to the QCom ethqos driver. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20240703181500.28491-2-brgl@bgdev.pl Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-08net: page_pool: fix warning codeJohannes Berg1-1/+1
WARN_ON_ONCE("string") doesn't really do what appears to be intended, so fix that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Fixes: 90de47f020db ("page_pool: fragment API support for 32-bit arch with 64-bit DMA") Link: https://patch.msgid.link/20240705134221.2f4de205caa1.I28496dc0f2ced580282d1fb892048017c4491e21@changeid Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-08selftests: net: ksft: interrupt cleanly on KeyboardInterruptJakub Kicinski1-1/+8
It's very useful to be able to interrupt the tests during development. Detect KeyboardInterrupt, run the cleanups and exit. Link: https://patch.msgid.link/20240705015222.675840-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-08selftests/bpf: DENYLIST.aarch64: Remove fexit_sleepPuranjay Mohan1-1/+0
fexit_sleep test runs successfully now on the BPF CI so remove it from the deny list. ftrace direct calls was blocking tracing programs on arm64 but it has been resolved by now. For more details see also discussion in [*]. Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240705145009.32340-1-puranjay@kernel.org [*]
2024-07-08selftests/bpf: amend for wrong bpf_wq_set_callback_impl signatureBenjamin Tissoires3-8/+17
See the previous patch: the API was wrong, we were provided the pointer to the value, not the actual struct bpf_wq *. Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240708-fix-wq-v2-2-667e5c9fbd99@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-07-08bpf: helpers: fix bpf_wq_set_callback_impl signatureBenjamin Tissoires1-1/+1
I realized this while having a map containing both a struct bpf_timer and a struct bpf_wq: the third argument provided to the bpf_wq callback is not the struct bpf_wq pointer itself, but the pointer to the value in the map. Which means that the users need to double cast the provided "value" as this is not a struct bpf_wq *. This is a change of API, but there doesn't seem to be much users of bpf_wq right now, so we should be able to go with this right now. Fixes: 81f1d7a583fa ("bpf: wq: add bpf_wq_set_callback_impl") Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240708-fix-wq-v2-1-667e5c9fbd99@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-07-08libbpf: Add NULL checks to bpf_object__{prev_map,next_map}Andreas Ziegler1-2/+2
In the current state, an erroneous call to bpf_object__find_map_by_name(NULL, ...) leads to a segmentation fault through the following call chain: bpf_object__find_map_by_name(obj = NULL, ...) -> bpf_object__for_each_map(pos, obj = NULL) -> bpf_object__next_map((obj = NULL), NULL) -> return (obj = NULL)->maps While calling bpf_object__find_map_by_name with obj = NULL is obviously incorrect, this should not lead to a segmentation fault but rather be handled gracefully. As __bpf_map__iter already handles this situation correctly, we can delegate the check for the regular case there and only add a check in case the prev or next parameter is NULL. Signed-off-by: Andreas Ziegler <ziegler.andreas@siemens.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240703083436.505124-1-ziegler.andreas@siemens.com
2024-07-08selftests/bpf: Remove exceptions tests from DENYLIST.s390xIlya Leoshkevich1-1/+0
Now that the s390x JIT supports exceptions, remove the respective tests from the denylist. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240703005047.40915-4-iii@linux.ibm.com
2024-07-08s390/bpf: Implement exceptionsIlya Leoshkevich1-2/+53
Implement the following three pieces required from the JIT: - A "top-level" BPF prog (exception_boundary) must save all non-volatile registers, and not only the ones that it clobbers. - A "handler" BPF prog (exception_cb) must switch stack to that of exception_boundary, and restore the registers that exception_boundary saved. - arch_bpf_stack_walk() must unwind the stack and provide the results in a way that satisfies both bpf_throw() and exception_cb. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240703005047.40915-3-iii@linux.ibm.com
2024-07-08s390/bpf: Change seen_reg to a maskIlya Leoshkevich1-16/+16
Using a mask instead of an array saves a small amount of memory and allows marking multiple registers as seen with a simple "or". Another positive side-effect is that it speeds up verification with jitterbug. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240703005047.40915-2-iii@linux.ibm.com
2024-07-08bpf: Remove unnecessary loop in task_file_seq_get_next()Dan Carpenter1-6/+3
After commit 0ede61d8589c ("file: convert to SLAB_TYPESAFE_BY_RCU") this loop always iterates exactly one time. Delete the for statement and pull the code in a tab. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Christian Brauner <brauner@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/bpf/ZoWJF51D4zWb6f5t@stanley.mountain
2024-07-08riscv, bpf: Optimize stack usage of trampolinePuranjay Mohan1-1/+1
When BPF_TRAMP_F_CALL_ORIG is not set, stack space for passing arguments on stack doesn't need to be reserved because the original function is not called. Only reserve space for stacked arguments when BPF_TRAMP_F_CALL_ORIG is set. Signed-off-by: Puranjay Mohan <puranjay@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Pu Lehui <pulehui@huawei.com> Link: https://lore.kernel.org/bpf/20240708114758.64414-1-puranjay@kernel.org
2024-07-08net: dsa: microchip: lan9371/2: update MAC capabilities for port 4Oleksij Rempel2-2/+10
Set proper MAC capabilities for port 4 on LAN9371 and LAN9372 switches with integrated 100BaseTX PHY. And introduce the is_lan937x_tx_phy() function to reuse it where applicable. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-07-08act_ct: prepare for stolen verdict coming from conntrack and nat engineFlorian Westphal1-6/+25
At this time, conntrack either returns NF_ACCEPT or NF_DROP. To improve debuging it would be nice to be able to replace NF_DROP verdict with NF_DROP_REASON() helper, This helper releases the skb instantly (so drop_monitor can pinpoint exact location) and returns NF_STOLEN. Prepare call sites to deal with this before introducing such changes in conntrack and nat core. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>