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2021-10-20phy: micrel: ksz8041nl: do not use power down modeStefan Agner1-2/+3
Some Micrel KSZ8041NL PHY chips exhibit continuous RX errors after using the power down mode bit (0.11). If the PHY is taken out of power down mode in a certain temperature range, the PHY enters a weird state which leads to continuously reporting RX errors. In that state, the MAC is not able to receive or send any Ethernet frames and the activity LED is constantly blinking. Since Linux is using the suspend callback when the interface is taken down, ending up in that state can easily happen during a normal startup. Micrel confirmed the issue in errata DS80000700A [*], caused by abnormal clock recovery when using power down mode. Even the latest revision (A4, Revision ID 0x1513) seems to suffer that problem, and according to the errata is not going to be fixed. Remove the suspend/resume callback to avoid using the power down mode completely. [*] https://ww1.microchip.com/downloads/en/DeviceDoc/80000700A.pdf Fixes: 1a5465f5d6a2 ("phy/micrel: Add suspend/resume support to Micrel PHYs") Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20net: enetc: unmap DMA in enetc_send_cmd()Tim Gardner1-7/+11
Coverity complains of a possible dereference of a null return value. 5. returned_null: kzalloc returns NULL. [show details] 6. var_assigned: Assigning: si_data = NULL return value from kzalloc. 488 si_data = kzalloc(data_size, __GFP_DMA | GFP_KERNEL); 489 cbd.length = cpu_to_le16(data_size); 490 491 dma = dma_map_single(&priv->si->pdev->dev, si_data, 492 data_size, DMA_FROM_DEVICE); While this kzalloc() is unlikely to fail, I did notice that the function returned without unmapping si_data. Fix this by refactoring the error paths and checking for kzalloc() failure. Fixes: 888ae5a3952ba ("net: enetc: add tc flower psfp offload driver") Cc: Claudiu Manoil <claudiu.manoil@nxp.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org (open list) Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Acked-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20net-core: use netdev_* calls for kernel messagesJesse Brandeburg1-12/+10
While loading a driver and changing the number of queues, I noticed this message in the kernel log: "[253489.070080] Number of in use tx queues changed invalidating tc mappings. Priority traffic classification disabled!" But I had no idea what interface was being talked about because this message used pr_warn(). After investigating, it appears we can use the netdev_* helpers already defined to create predictably formatted messages, and that already handle <unknown netdev> cases, in more of the messages in dev.c. After this change, this message (and others) will look like this: "[ 170.181093] ice 0000:3b:00.0 ens785f0: Number of in use tx queues changed invalidating tc mappings. Priority traffic classification disabled!" One goal here was not to change the message significantly from the original format so as to not break user's expectations, so I just changed messages that used pr_* and generally started with %s == dev->name. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20batman-adv: use eth_hw_addr_set() instead of ether_addr_copy()Jakub Kicinski1-1/+1
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Convert batman from ether_addr_copy() to eth_hw_addr_set(): @@ expression dev, np; @@ - ether_addr_copy(dev->dev_addr, np) + eth_hw_addr_set(dev, np) Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20mac802154: use dev_addr_set() - manualJakub Kicinski2-8/+9
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20mac802154: use dev_addr_set()Jakub Kicinski1-1/+1
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20batman-adv: prepare for const netdev->dev_addrJakub Kicinski5-13/+14
netdev->dev_addr will be constant soon, make sure the qualifier is propagated thru batman-adv. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20soc: fsl: dpio: Unsigned compared against 0 in qbman_swp_set_irq_coalescing()Tim Gardner1-6/+5
Coverity complains of unsigned compare against 0. There are 2 cases in this function: 1821 itp = (irq_holdoff * 1000) / p->desc->qman_256_cycles_per_ns; CID 121131 (#1 of 1): Unsigned compared against 0 (NO_EFFECT) unsigned_compare: This less-than-zero comparison of an unsigned value is never true. itp < 0U. 1822 if (itp < 0 || itp > 4096) { 1823 max_holdoff = (p->desc->qman_256_cycles_per_ns * 4096) / 1000; 1824 pr_err("irq_holdoff must be between 0..%dus\n", max_holdoff); 1825 return -EINVAL; 1826 } 1827 unsigned_compare: This less-than-zero comparison of an unsigned value is never true. irq_threshold < 0U. 1828 if (irq_threshold >= p->dqrr.dqrr_size || irq_threshold < 0) { 1829 pr_err("irq_threshold must be between 0..%d\n", 1830 p->dqrr.dqrr_size - 1); 1831 return -EINVAL; 1832 } Fix this by removing the comparisons altogether as they are incorrect. Zero is a possible value in either case. Also fix a minor comment typo and update the 2 pr_err() calls to use %u formatting as well as be more precise regarding the exact error. Fixes: ed1d2143fee5 ("soc: fsl: dpio: add support for irq coalescing per software portal") Cc: Ioana Ciornei <ioana.ciornei@nxp.com> Cc: Roy Pledge <Roy.Pledge@nxp.com> Cc: Li Yang <leoyang.li@nxp.com> Cc: linux-kernel@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-arm-kernel@lists.infradead.org Cc: netdev@vger.kernel.org Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20net: dsa: qca8k: tidy for loop in setup and add cpu port checkAnsuel Smith1-30/+44
Tidy and organize qca8k setup function from multiple for loop. Change for loop in bridge leave/join to scan all port and skip cpu port. No functional change intended. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20ethernet: via-velocity: use eth_hw_addr_set()Jakub Kicinski1-1/+3
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20ethernet: via-rhine: use eth_hw_addr_set()Jakub Kicinski1-1/+3
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20ethernet: tlan: use eth_hw_addr_set()Jakub Kicinski1-4/+6
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, do the swapping, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20ethernet: tehuti: use eth_hw_addr_set()Jakub Kicinski1-2/+4
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Break the address up into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20ethernet: stmmac: use eth_hw_addr_set()Jakub Kicinski1-2/+6
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20ethernet: netsec: use eth_hw_addr_set()Jakub Kicinski1-7/+9
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20net: dsa: sja1105: parse {rx, tx}-internal-delay-ps properties for RGMII delaysVladimir Oltean3-47/+107
This change does not fix any functional issue or address any real life use case that wasn't possible before. It is just a small step in the process of standardizing the way in which Ethernet MAC drivers may apply RGMII delays (traditionally these have been applied by PHYs, with no clear definition of what to do in the case of a fixed-link). The sja1105 driver used to apply MAC-level RGMII delays on the RX data lines when in fixed-link mode and using a phy-mode of "rgmii-rxid" or "rgmii-id" and on the TX data lines when using "rgmii-txid" or "rgmii-id". But the standard definitions don't say anything about behaving differently when the port is in fixed-link vs when it isn't, and the new device tree bindings are about having a way of applying the delays in a way that is independent of the phy-mode and of the fixed-link property. When the {rx,tx}-internal-delay-ps properties are present, use them, otherwise fall back to the old behavior and warn. One other thing to note is that the SJA1105 hardware applies a delay value in degrees rather than in picoseconds (the delay in ps changes depending on the frequency of the RGMII clock - 125 MHz at 1G, 25 MHz at 100M, 2.5MHz at 10M). I assume that is fine, we calculate the phase shift of the internal delay lines assuming that the device tree meant gigabit, and we let the hardware scale those according to the link speed. Link: https://patchwork.kernel.org/project/netdevbpf/patch/20210723173108.459770-6-prasanna.vengateshan@microchip.com/ Link: https://patchwork.ozlabs.org/project/netdev/patch/20200616074955.GA9092@laureti-dev/#2461123 Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20dt-bindings: net: dsa: sja1105: add {rx,tx}-internal-delay-psVladimir Oltean2-0/+46
Add a schema validator to nxp,sja1105.yaml and to dsa.yaml for explicit MAC-level RGMII delays. These properties must be per port and must be present only for a phy-mode that represents RGMII. We tell dsa.yaml that these port properties might be present, we also define their valid values for SJA1105. We create a common definition for the RX and TX valid range, since it's quite a mouthful. We also modify the example to include the explicit RGMII delay properties. On the fixed-link ports (in the example, port 4), having these explicit delays is actually mandatory, since with the new behavior, the driver shouts that it is interpreting what delays to apply based on phy-mode. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20dt-bindings: net: dsa: inherit the ethernet-controller DT schemaVladimir Oltean1-0/+3
Since a switch is basically a bunch of Ethernet controllers, just inherit the common schema for one to get stronger type validation of the properties of a port. For example, before this change it was valid to have a phy-mode = "xfi" even if "xfi" is not part of ethernet-controller.yaml, now it is not. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-20dt-bindings: net: dsa: sja1105: fix example so all ports have a phy-handle of fixed-linkVladimir Oltean1-0/+1
All ports require either a phy-handle or a fixed-link, and port 3 in the example didn't have one. Add it. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19net: sched: remove one pair of atomic operationsEric Dumazet1-4/+8
__QDISC_STATE_RUNNING is only set/cleared from contexts owning qdisc lock. Thus we can use less expensive bit operations, as we were doing before commit f9eb8aea2a1e ("net_sched: transform qdisc running bit into a seqcount") Fixes: 29cbcd858283 ("net: sched: Remove Qdisc::running sequence counter") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ahmed S. Darwish <a.darwish@linutronix.de> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-19net: sched: fix logic error in qdisc_run_begin()Eric Dumazet1-1/+1
For non TCQ_F_NOLOCK qdisc, qdisc_run_begin() tries to set __QDISC_STATE_RUNNING and should return true if the bit was not set. test_and_set_bit() returns old bit value, therefore we need to invert. Fixes: 29cbcd858283 ("net: sched: Remove Qdisc::running sequence counter") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ahmed S. Darwish <a.darwish@linutronix.de> Tested-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-19ice: fix an error code in ice_ena_vfs()Dan Carpenter1-1/+2
Return the error code if ice_eswitch_configure() fails. Don't return success. Fixes: 1c54c839935b ("ice: enable/disable switchdev when managing VFs") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: use devm_kcalloc() instead of devm_kzalloc()Gustavo A. R. Silva2-4/+4
Use 2-factor multiplication argument form devm_kcalloc() instead of devm_kzalloc(). Link: https://github.com/KSPP/linux/issues/162 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: Make use of the helper function devm_add_action_or_reset()Cai Huoqing1-3/+1
The helper function devm_add_action_or_reset() will internally call devm_add_action(), and if devm_add_action() fails then it will execute the action mentioned and return the error code. So use devm_add_action_or_reset() instead of devm_add_action() to simplify the error handling, reduce the code. Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: Refactor PR ethtool opsWojciech Drewek1-25/+74
This patch improves a few things: - it fixes issue where ethtool -i reports that PR supports priv-flags and tests when in fact it does not support them - instead of using the same functions for both PF and PR ethtool ops, this patch introduces separate ops for both cases and internal functions with core logic. - prevent accessing VF VSI while VF is not ready by calling ice_check_vf_ready_for_cfg - all PR specific functions in ethtool.c were moved to one place in file - instead overwriting n_priv_flags in ice_repr_get_drvinfo, priv-flags code was moved from __ice_get_drvinfo to ice_get_drvinfo Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: Manage act flags for switchdev offloadsWojciech Drewek5-138/+21
Currently it is not possible to set/unset lb_en and lan_en flags for advanced rules during their creation. Both flags are enabled by default. In case of switchdev offloads for egress traffic we need lb_en to be disabled. Because of that, we work around it by updating the rule immediately after its creation. This change allows us to set/unset those flags right away and it gets rid of old workaround as well. Using ice_adv_rule_flags_info structure we can pass info about flags we want to be set for a given advanced rule. Flags are stored in flags_info.act. Values from act would be used only if act_valid was set to true, otherwise default values would be used. Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Acked-by: Paul Menzel <pmenzel@molgen.mpg.de> Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: Forbid trusted VFs in switchdev modeWojciech Drewek1-5/+5
Merge issues caused the check for switchdev mode has been inserted in wrong place. It should be in ice_set_vf_trust not in ice_set_vf_mac. Trusted VFs are forbidden in switchdev mode because they should be configured only from the host side. Fixes: 1c54c839935b ("ice: enable/disable switchdev when managing VFs") Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: fix software generating extra interruptsJesse Brandeburg2-11/+16
The driver tried to work around missing completion events that occurred while interrupts are disabled, by triggering a software interrupt whenever we exit polling (but we had to have polled at least once). This was causing a *lot* of extra interrupts for some workloads like NVMe over TCP, which resulted in regressions in performance. It was also visible when polling didn't prevent interrupts when busy_poll was enabled. Fix the extra interrupts by utilizing our previously unused 3rd ITR (interrupt throttle) index and set it to 20K interrupts per second, and then trigger a software interrupt within that rate limit. While here, slightly refactor the code to avoid an overwrite of a local variable in the case of wb_en = true. Fixes: b7306b42beaf ("ice: manage interrupts during poll exit") Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: fix rate limit update after coalesce changeJesse Brandeburg2-8/+13
If the adaptive settings are changed with ethtool -C ethx adaptive-rx off adaptive-tx off then the interrupt rate limit should be maintained as a user set value, but only if BOTH adaptive settings are off. Fix a bug where the rate limit that was being used in adaptive mode was staying set in the register but was not reported correctly by ethtool -c ethx. Due to long lines include a small refactor of q_vector variable. Fixes: b8b4772377dd ("ice: refactor interrupt moderation writes") Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: update dim usage and moderationJesse Brandeburg4-87/+142
The driver was having trouble with unreliable latency when doing single threaded ping-pong tests. This was root caused to the DIM algorithm landing on a too slow interrupt value, which caused high latency, and it was especially present when queues were being switched frequently by the scheduler as happens on default setups today. In attempting to improve this, we allow the upper rate limit for interrupts to move to rate limit of 4 microseconds as a max, which means that no vector can generate more than 250,000 interrupts per second. The old config was up to 100,000. The driver previously tried to program the rate limit too frequently and if the receive and transmit side were both active on the same vector, the INTRL would be set incorrectly, and this change fixes that issue as a side effect of the redesign. This driver will operate from now on with a slightly changed DIM table with more emphasis towards latency sensitivity by having more table entries with lower latency than with high latency (high being >= 64 microseconds). The driver also resets the DIM algorithm state with a new stats set when there is no work done and the data becomes stale (older than 1 second), for the respective receive or transmit portion of the interrupt. Add a new helper for setting rate limit, which will be used more in a followup patch. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Gurucharan G <gurucharanx.g@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19ice: Add support for VF rate limitingBrett Creeley7-4/+486
Implement ndo_set_vf_rate to support setting of min_tx_rate and max_tx_rate; set the appropriate bandwidth in the scheduler for the node representing the specified VF VSI. Co-developed-by: Tarun Singh <tarun.k.singh@intel.com> Signed-off-by: Tarun Singh <tarun.k.singh@intel.com> Signed-off-by: Brett Creeley <brett.creeley@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-10-19net: ethernet: ixp4xx: Make use of dma_pool_zalloc() instead of dma_pool_alloc/memset()Cai Huoqing1-3/+2
Replacing dma_pool_alloc/memset() with dma_pool_zalloc() to simplify the code. Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ieee802154: Remove redundant 'flush_workqueue()' callsChristophe JAILLET1-2/+0
'destroy_workqueue()' already drains the queue before destroying it, so there is no need to flush it explicitly. Remove the redundant 'flush_workqueue()' calls. This was generated with coccinelle: @@ expression E; @@ - flush_workqueue(E); destroy_workqueue(E); Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19devlink: Remove extra device_lock assert checksLeon Romanovsky1-2/+0
PCI core code in the pci_call_probe() has a path that doesn't hold device_lock. It happens because the ->probe() is called through the workqueue mechanism. 349 static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev, 350 const struct pci_device_id *id) 351 { 352 .... 377 if (cpu < nr_cpu_ids) 378 error = work_on_cpu(cpu, local_pci_probe, &ddi); Luckily enough, the core still ensures that only single flow is executed, so it safe to remove the assert checks that anyway were added for annotations purposes. Fixes: b88f7b1203bf ("devlink: Annotate devlink API calls") Reported-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: Remove redundant statementluo penghao1-1/+0
The variable will be assigned again later in the if condition, there is no meaning there. drivers/net/ethernet/broadcom/tg3.c:5750:2 warning: Value stored to 'current_link_up' is never read. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: luo penghao <luo.penghao@zte.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19net: phylink: Support disabling autonegotiation for PCSRobert Hancock1-5/+19
The auto-negotiation state in the PCS as set by phylink_mii_c22_pcs_config was previously always enabled when the driver is configured for in-band autonegotiation, even if autonegotiation was disabled on the interface with ethtool. Update the code to set the BMCR_ANENABLE bit based on the interface's autonegotiation enabled state. Update phylink_mii_c22_pcs_get_state to not check autonegotiation-related fields when autonegotiation is disabled. Update phylink_mac_pcs_get_state to initialize the state based on the interface's configured speed, duplex and pause parameters rather than to unknown when autonegotiation is disabled, before calling the driver's pcs_get_state functions, as they are not likely to provide meaningful data for these fields when autonegotiation is disabled. In this case the driver is really just filling in the link state field. Note that in cases where there is a downstream PHY connected, such as with SGMII and a copper PHY, the configuration set by ethtool is handled by phy_ethtool_ksettings_set and not propagated to the PCS. This is correct since SGMII or 1000Base-X autonegotiation with the PCS should normally still be used even if the copper side has disabled it. Signed-off-by: Robert Hancock <robert.hancock@calian.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19net: sched: Allow statistics reads from softirq.Sebastian Andrzej Siewior1-1/+1
Eric reported that the rate estimator reads statics from the softirq which in turn triggers a warning introduced in the statistics rework. The warning is too cautious. The updates happen in the softirq context so reads from softirq are fine since the writes can not be preempted. The updates/writes happen during qdisc_run() which ensures one writer and the softirq context. The remaining bad context for reading statistics remains in hard-IRQ because it may preempt a writer. Fixes: 29cbcd8582837 ("net: sched: Remove Qdisc::running sequence counter") Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19net: phylink: rejig SFP interface selection in ksettings_set()Russell King (Oracle)1-10/+10
Commit ea269a6f7207 ("net: phylink: Update SFP selected interface on advertising changes") added a better solution to selecting the interface mode for SFPs using the advertisement mask. This method will work for mvneta and mvpp2 when selecting between 2500base-X and 1000base-X without needing to use the basex helper, or indicate that we support both 1000base-X and 2500base-X when in either of these two interface modes. Hence, we need to eliminate the validation prior to selecting the interface, otherwise when we clean up mvneta's validation function, we will end up locking to 2500base-X as we validate with an interface mode of PHY_INERFACE_MODE_2500BASEX. The supported mask will already have been reduced down to the union of support for the SFP and MAC already, so we can be confident that the advertisement mask is already appropriately restricted. We only need to select the appropriate interface, and then revalidate with the new interface mode. We get rid of the check for pl->sfp_port too, this is meaningless here as it doesn't get cleared when a module is removed, so it doesn't indicate if a module is present. Just rely on pl->sfp_bus. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19e1000e: Remove redundant statementluo penghao1-1/+0
This assignment statement is meaningless, because the statement will execute to the tag "set_itr_now". The clang_analyzer complains as follows: drivers/net/ethernet/intel/e1000e/netdev.c:2552:3 warning: Value stored to 'current_itr' is never read. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: luo penghao <luo.penghao@zte.com.cn> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: sparx5: use eth_hw_addr_gen()Jakub Kicinski1-3/+1
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: mlxsw: use eth_hw_addr_gen()Jakub Kicinski2-11/+7
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: fec: use eth_hw_addr_gen()Jakub Kicinski1-4/+1
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: prestera: use eth_hw_addr_gen()Jakub Kicinski1-2/+5
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Vadym and Taras report that the current behavior of the driver is not exactly expected and it's better to add the port id in like other drivers do. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: ocelot: use eth_hw_addr_gen()Jakub Kicinski1-2/+1
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: add a helper for assigning port addressesJakub Kicinski1-0/+21
We have 5 drivers which offset base MAC addr by port id. Create a helper for them. This helper takes care of overflows, which some drivers did not do, please complain if that's going to break anything! Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Shannon Nelson <snelson@pensando.io> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: smsc: use eth_hw_addr_set()Jakub Kicinski2-15/+19
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Break the address up into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: smc91x: use eth_hw_addr_set()Jakub Kicinski2-2/+6
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: sis900: use eth_hw_addr_set()Jakub Kicinski1-1/+3
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: sis190: use eth_hw_addr_set()Jakub Kicinski1-1/+3
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: sxgbe: use eth_hw_addr_set()Jakub Kicinski1-3/+6
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Read the address into an array on the stack, then call eth_hw_addr_set(). Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>