- 04 Oct, 2022 22 commits
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Jakub Kicinski authored
build bot reports missing 'static inline' qualifiers in the header. Reported-by:
kernel test robot <lkp@intel.com> Fixes: 18ff0bcd ("ethtool: add interface to interact with Ethernet Power Equipment") Reviewed-by:
Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.kernel.org/r/20221004040327.2034878-1-kuba@kernel.orgSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski authored
Merge in the left-over fixes before the net-next pull-request. Conflicts: drivers/net/ethernet/mediatek/mtk_ppe.c ae3ed15d ("net: ethernet: mtk_eth_soc: fix state in __mtk_foe_entry_clear") 9d8cb4c0 ("net: ethernet: mtk_eth_soc: add foe_entry_size to mtk_eth_soc") https://lore.kernel.org/all/6cb6893b-4921-a068-4c30-1109795110bb@tessares.net/ kernel/bpf/helpers.c 8addbfc7 ("bpf: Gate dynptr API behind CAP_BPF") 5679ff2f ("bpf: Move bpf_loop and bpf_for_each_map_elem under CAP_BPF") 8a67f2de ("bpf: expose bpf_strtol and bpf_strtoul to all program types") https://lore.kernel.org/all/20221003201957.13149-1-daniel@iogearbox.net/Signed-off-by:
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Jason A. Donenfeld authored
The _SLOW designation wasn't really descriptive of anything. This is meant to be called from process context when it's possible to sleep. So name this more aptly _SLEEPABLE, which better fits its intended use. Fixes: 62c07983 ("once: add DO_ONCE_SLOW() for sleepable contexts") Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by:
Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by:
Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20221003181413.1221968-1-Jason@zx2c4.comSigned-off-by:
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Jakub Kicinski authored
Oleksij Rempel says: ==================== add generic PSE support Add generic support for the Ethernet Power Sourcing Equipment. ==================== Link: https://lore.kernel.org/r/20221003065202.3889095-1-o.rempel@pengutronix.deSigned-off-by:
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Oleksij Rempel authored
Add generic, regulator based PSE driver to support simple Power Sourcing Equipment without automatic classification support. This driver was tested on 10Bast-T1L switch with regulator based PoDL PSE. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Oleksij Rempel authored
Add bindings for the regulator based Ethernet PoDL PSE controller and generic bindings for all PSE controllers. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Oleksij Rempel authored
Add interface to support Power Sourcing Equipment. At current step it provides generic way to address all variants of PSE devices as defined in IEEE 802.3-2018 but support only objects specified for IEEE 802.3-2018 104.4 PoDL Power Sourcing Equipment (PSE). Currently supported and mandatory objects are: IEEE 802.3-2018 30.15.1.1.3 aPoDLPSEPowerDetectionStatus IEEE 802.3-2018 30.15.1.1.2 aPoDLPSEAdminState IEEE 802.3-2018 30.15.1.2.1 acPoDLPSEAdminControl This is minimal interface needed to control PSE on each separate ethernet port but it provides not all mandatory objects specified in IEEE 802.3-2018. Since "PoDL PSE" and "PSE" have similar names, but some different values I decide to not merge them and keep separate naming schema. This should allow as to be as close to IEEE 802.3 spec as possible and avoid name conflicts in the future. This implementation is connected to PHYs instead of MACs because PSE auto classification can potentially interfere with PHY auto negotiation. So, may be some extra PHY related initialization will be needed. With WIP version of ethtools interaction with PSE capable link looks as following: $ ip l ... 5: t1l1@eth0: <BROADCAST,MULTICAST> .. ... $ ethtool --show-pse t1l1 PSE attributs for t1l1: PoDL PSE Admin State: disabled PoDL PSE Power Detection Status: disabled $ ethtool --set-pse t1l1 podl-pse-admin-control enable $ ethtool --show-pse t1l1 PSE attributs for t1l1: PoDL PSE Admin State: enabled PoDL PSE Power Detection Status: delivering power Signed-off-by:
Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by:
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Oleksij Rempel authored
Some PHYs can be linked with PSE (Power Sourcing Equipment), so search for related nodes and attach it to the phydev. Signed-off-by:
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Oleksij Rempel authored
Rework error handling as preparation for PSE patch. This patch should make it easier to extend this function. Signed-off-by:
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Oleksij Rempel authored
This framework was create with intention to provide support for Ethernet PSE (Power Sourcing Equipment) and PDs (Powered Device). At current step this patch implements generic PSE support for PoDL (Power over Data Lines 802.3bu) specification with reserving name space for PD devices as well. This framework can be extended to support 802.3af and 802.3at "Power via the Media Dependent Interface" (or PoE/Power over Ethernet) Signed-off-by:
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Oleksij Rempel authored
Add property to reference node representing a PoDL Power Sourcing Equipment. Signed-off-by:
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Jakub Kicinski authored
Yevhen Orlov says: ==================== net: marvell: prestera: add nexthop routes offloading Add support for nexthop routes for Marvell Prestera driver. Subscribe on NEIGH_UPDATE events. Add features: - Support connected route adding e.g.: "ip address add 1.1.1.1/24 dev sw1p1" e.g.: "ip route add 6.6.6/24 dev sw1p1" - Support nexthop route adding e.g.: "ip route add 5.5.5/24 via 1.1.1.2" - Support ECMP route adding e.g.: "ip route add 5.5.5/24 nexthop via 1.1.1.2 nexthop via 1.1.1.3" - Support "offload" and "trap" flags per each nexthop - Support "offload" flag for neighbours Limitations: - Only "local" and "main" tables supported - Only generic interfaces supported for router (no bridges or vlans) Flags meaning: ip route add 5.5.5/24 nexthop via 2.2.2.2 nexthop via 2.2.2.3 ip route show ... 5.5.5.0/24 rt_offload nexthop via 2.2.2.2 dev sw1p31 weight 1 trap nexthop via 2.2.2.3 dev sw1p31 weight 1 trap ... # When you just add route - lpm entry became occupied # in HW ("rt_offload" flag), but related to nexthops neighbours # still not resolved ("trap" flag). # # After some time... ip route show ... 5.5.5.0/24 rt_offload nexthop via 2.2.2.2 dev sw1p31 weight 1 offload nexthop via 2.2.2.3 dev sw1p31 weight 1 offload ... # You will see, that appropriate neighbours was resolved and nexthop # entries occupied in HW too ("offload" flag) Co-developed-by:Taras Chornyi <tchornyi@marvell.com> Signed-off-by:
Oleksandr Mazur <oleksandr.mazur@plvision.eu> Signed-off-by:
Yevhen Orlov <yevhen.orlov@plvision.eu> Changes for v2: * Add more reviewers in CC * Check if route nexthop or direct with fib_nh_gw_family instead of fib_nh_scope This is needed after, 747c1430 ("ip: fix dflt addr selection for connected nexthop"), because direct route is now with the same scope as nexthop (RT_SCOPE_LINK) Changes for v3: * Resolve "unused functions" warnings, after patch ("net: marvell: prestera: Add heplers to interact ... "), and before patch ("net: marvell: prestera: Add neighbour cache accounting") Changes for v4: * Rebase to the latest master to resolve patch applying issues Changes for v5: * Repack structures to prevent holes * Remove unused variables * Fix misspeling issues Changes for v6: * Rebase on top of master * Fix smatch warnings Changes for v7: * Rebase on top of master * Refactor: use "fib_lookup" instead of "fib_new_table"+"fib_table_lookup", according to Paolo Abeni suggestion * Refactor: use "rhashtable_free_and_destroy" instead of rhashtable walk, according to Paolo Abeni suggestion ==================== Link: https://lore.kernel.org/r/20221001093417.22388-1-yevhen.orlov@plvision.euSigned-off-by:
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Yevhen Orlov authored
We poll nexthops in HW and call for each active nexthop appropriate neighbour. Also we provide implicity neighbour resolving. For example, user have added nexthop route: # ip route add 5.5.5.5 via 1.1.1.2 But neighbour 1.1.1.2 doesn't exist. In this case we will try to call neigh_event_send, even if there is no traffic. This is useful, when you have add route, which will be used after some time but with a lot of traffic (burst). So, we has prepared, offloaded route in advance. Co-developed-by:
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Yevhen Orlov authored
Move forward and use new PRESTERA_FIB_TYPE_UC_NH to provide basic nexthop routes support. Provide deinitialization sequence for all created router objects. Limitations: - Only "local" and "main" tables supported - Only generic interfaces supported for router (no bridges or vlans) Co-developed-by:
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Yevhen Orlov authored
Actual handler will be added in next patches Co-developed-by:
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Yevhen Orlov authored
This will be used to implement nexthops related logic in next patches. Also try to keep ipv4/6 abstraction to be able to reuse helpers for ipv6 in the future. Co-developed-by:
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Yevhen Orlov authored
Add macros to determine IP address length (internal driver types). This will be used in next patches for nexthops logic. Co-developed-by:
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Yevhen Orlov authored
Flushing workqueues ensures, that no more pending works, related to just unregistered or deinitialized notifiers. After that we can free memory. Delayed wq will be used for neighbours in next patches. Co-developed-by:
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Yevhen Orlov authored
This will, ensure, that there is no more, preciously allocated fib_cache entries left after deinit. Will be used to free allocated resources of nexthop routes, that points to "not our" port (e.g. eth0). Signed-off-by:
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Yevhen Orlov authored
Do explicity cleanup on router_hw_fini, to ensure, that all allocated objects cleaned. This will be used in cases, when upper layer (cache) is not mapped to router_hw layer. Co-developed-by:
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Yevhen Orlov authored
- Add functions to allocate/delete/set nexthop group - NOTE: non-ECMP nexthop is nexthop group with allocated size = 1 - Add function to read state of HW nh (if packets going through it) Co-developed-by:
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Jakub Kicinski authored
Guenter reports I missed a netif_napi_add() call in one of the platform-specific drivers: drivers/net/ethernet/cavium/octeon/octeon_mgmt.c: In function 'octeon_mgmt_probe': drivers/net/ethernet/cavium/octeon/octeon_mgmt.c:1399:9: error: too many arguments to function 'netif_napi_add' 1399 | netif_napi_add(netdev, &p->napi, octeon_mgmt_napi_poll, | ^~~~~~~~~~~~~~ Reported-by:Guenter Roeck <linux@roeck-us.net> Fixes: b48b89f9 ("net: drop the weight argument from netif_napi_add") Link: https://lore.kernel.org/r/20221002175650.1491124-1-kuba@kernel.orgSigned-off-by:
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- 03 Oct, 2022 18 commits
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Jakub Kicinski authored
Saeed Mahameed says: ==================== mlx5 xsk updates part4 and more 1) Final part of xsk improvements, in this series Maxim continues to improve xsk implementation a) XSK Busy polling support b) Use KLM to avoid Frame overrun in unaligned mode c) Optimize unaligned more for certain frame sizes d) Other straight forward minor optimizations. part 1: https://lore.kernel.org/netdev/20220927203611.244301-1-saeed@kernel.org/ part 2: https://lore.kernel.org/netdev/20220929072156.93299-1-saeed@kernel.org/ part 3: https://lore.kernel.org/netdev/20220930162903.62262-1-saeed@kernel.org/ 2) Oversize packets firmware counter, from Gal. 3) Set default grace period for health reporters based on function type 4) Some minor E-Switch improvements ==================== Link: https://lore.kernel.org/r/20221002045632.291612-1-saeed@kernel.orgSigned-off-by:
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Jianbo Liu authored
It is to avoid tc retrying during device mode change. Signed-off-by:
Jianbo Liu <jianbol@nvidia.com> Reviewed-by:
Roi Dayan <roid@nvidia.com> Signed-off-by:
Saeed Mahameed <saeedm@nvidia.com> Signed-off-by:
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Chris Mi authored
Currently, qos group will be updated and qos will be enabled when unregistering devlink port. Actually no need to update group if qos is not enabled. Add a check to prevent unnecessary enabling and disabling qos for every port. Signed-off-by:
Chris Mi <cmi@nvidia.com> Reviewed-by:
Dmytro Linkin <dlinkin@nvidia.com> Signed-off-by:
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Roi Dayan authored
Before this commit a fwd dest flow table resulted in ignoring vport dests which is incorrect and is supported. With this commit the dests can be a mix of flow table and vport dests. There is still a limitation that there cannot be more than one flow table dest. Signed-off-by:
Maor Dickman <maord@nvidia.com> Signed-off-by:
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Maher Sanalla authored
Currently, driver sets the same grace period for fw fatal health reporter to any type of function. Since the lower level functions are more vulnerable to fw fatal errors as a result of parent function closure/reload, set a smaller grace period for the lower level functions, as follows: 1. For ECPF: 180 seconds. 2. For PF: 60 seconds. 3. For VF/SF: 30 seconds. Signed-off-by:
Maher Sanalla <msanalla@nvidia.com> Reviewed-by:
Moshe Shemesh <moshe@nvidia.com> Signed-off-by:
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Moshe Shemesh authored
Start health poll at earlier stage, so if fw fatal issue occurred before or during initialization commands such as init_hca or set_hca_cap the poll health can detect and indicate that the driver is already in error state. Signed-off-by:
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Gal Pressman authored
Add the rx_oversize_pkts_buffer counter to ethtool statistics. This counter exposes the number of dropped received packets due to length which arrived to RQ and exceed software buffer size allocated by the device for incoming traffic. It might imply that the device MTU is larger than the software buffers size. Signed-off-by:
Gal Pressman <gal@nvidia.com> Reviewed-by:
Tariq Toukan <tariqt@nvidia.com> Signed-off-by:
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Maxim Mikityanskiy authored
When XSK frame size is 3072 (or another power of two multiplied by 3), KLM mechanism for NIC virtual memory page mapping can be optimized by replacing it with KSM. Before this change, two KLM entries were needed to map an XSK frame that is not a power of two: one entry maps the UMEM memory up to the frame length, the other maps the rest of the stride to the garbage page. When the frame length divided by 3 is a power of two, it can be mapped using 3 KSM entries, and the fourth will map the rest of the stride to the garbage page. All 4 KSM entries are of the same size, which allows for a much faster lookup. Frame size 3072 is useful in certain use cases, because it allows packing 4 frames into 3 pages. Generally speaking, other frame sizes equal to PAGE_SIZE minus a power of two can be optimized in a similar way, but it will require many more KSMs per frame, which slows down UMRs a little bit, but more importantly may hit the limit for the maximum number of KSM entries. Signed-off-by:
Maxim Mikityanskiy <maximmi@nvidia.com> Reviewed-by:
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Maxim Mikityanskiy authored
On striding RQ, when the XSK frame size doesn't match the MKey page size, KLM is used for memory mappings, which is a slower mechanism than MTT or KSM. It may happen in two cases: 1. Frame size is not a power of two (only possible in the unaligned mode of XSK). 2. Frame size is 2048 bytes, and the firmware doesn't support MKey pages smaller than 4096 bytes. Depending on the case, print a warning and recommend to disable striding RQ or upgrade the firmware. Signed-off-by:
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Maxim Mikityanskiy authored
XSK RQs support striding RQ linear mode, but the stride size may be bigger than the XSK frame size, because: 1. The stride size must be a power of two. 2. The stride size must be equal to the UMR page size. Each XSK frame is treated as a separate page, because they aren't necessarily adjacent in physical memory, so the driver can't put more than one stride per page. 3. The minimal MTT page size is 4096 on older firmware. That means that if XSK frame size is 2048 or not a power of two, the strides may be bigger than XSK frames. Normally, it's not a problem if the hardware enforces the MTU. However, traffic between vports skips the hardware MTU check, and oversized packets may be received. If an oversized packet is bigger than the XSK frame but not bigger than the stride, it will cause overwriting of the adjacent UMEM region. If the packet takes more than one stride, they can be recycled for reuse, so it's not a problem when the XSK frame size matches the stride size. Work around the above issue by leveraging KLM to make a more fine-grained mapping. The beginning of each stride is mapped to the frame memory, and the padding up to the closest power of two is mapped to the overflow page that doesn't belong to UMEM. This way, application data corruption won't happen upon receiving packets bigger than MTU. Signed-off-by:
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Maxim Mikityanskiy authored
Make mlx5e_mpwrq_mtts_per_wqe take into account that KSM requires smaller alignment than MTT. Ensure that there is always an even amount of MTTs in a UMR WQE, so that complete octwords are formed, and no garbage is mapped. Drop extra alignment in MLX5_MTT_OCTW that may cause setting too big ucseg->xlt_octowords, also leading to mapping garbage. Generalize some calculations by introducing the MLX5_OCTWORD constant. Signed-off-by:
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Maxim Mikityanskiy authored
Instead of passing the unaligned flag, pass an enum that indicates the UMR mode. The next commit will add the third mode (KLM for certain configurations of XSK), which will be added to this enum instead of adding another bool flag everywhere. Signed-off-by:
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Maxim Mikityanskiy authored
XSK need_wakeup mechanism allows the driver to stop busy waiting for buffers when the fill ring is empty, yield to the application and signal it that the driver needs to be waken up after the application refills the fill ring. Add protection against the race condition on the RX (refill) side: if the application refills buffers after xskrq->post_wqes is called, but before mlx5e_xsk_update_rx_wakeup, NAPI will exit, skipping taking these buffers to the hardware WQ, and the application won't wake it up again. Optimize the whole need_wakeup logic, removing unneeded flows, to compensate for this new check. Signed-off-by:
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Maxim Mikityanskiy authored
XSK is a performance-critical data path. To avoid an indirect function call with a retpoline, include XSK callbacks in the INDIRECT_CALL macro, so that they are called directly in XSK flows. Signed-off-by:
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Maxim Mikityanskiy authored
xdp_rxq_info_reg should get the actual napi_id, not 0, in order to support socket busy polling properly. Signed-off-by:
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Maxim Mikityanskiy authored
The regular RQ remains open after opening an XSK socket, in order to guarantee that closing the XSK socket never fails due to an error when reopening the regular RQ. To save memory, the regular RQ can be deactivated and flushed, releasing all pages, when an XSK socket is open. Signed-off-by:
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Russell King (Oracle) authored
When mvpp2 is unloaded, the driver specific debugfs directory is not removed, which technically leads to a memory leak. However, this directory is only created when the first device is probed, so the hardware is present. Removing the module is only something a developer would to when e.g. testing out changes, so the module would be reloaded. So this memory leak is minor. The original attempt in commit fe2c9c61 ("net: mvpp2: debugfs: fix memory leak when using debugfs_lookup()") that was labelled as a memory leak fix was not, it fixed a refcount leak, but in doing so created a problem when the module is reloaded - the directory already exists, but mvpp2_root is NULL, so we lose all debugfs entries. This fix has been reverted. This is the alternative fix, where we remove the offending directory whenever the driver is unloaded. Fixes: 21da57a2 ("net: mvpp2: add a debugfs interface for the Header Parser") Signed-off-by:
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by:
Marcin Wojtas <mw@semihalf.com> Link: https://lore.kernel.org/r/E1ofOAB-00CzkG-UO@rmk-PC.armlinux.org.ukSigned-off-by:
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Alex Elder authored
Some source files state copyright dates that are earlier than the last modification of the file. Change the copyright year to 2022 in all such cases. Signed-off-by:
Alex Elder <elder@linaro.org> Link: https://lore.kernel.org/r/20220930224549.3503434-1-elder@linaro.orgSigned-off-by:
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