- 30 Nov, 2023 13 commits
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Vincent Whitchurch authored
Add support to allow Fast Link Down (aka "Enhanced link detection") to be controlled via the ETHTOOL_PHY_FAST_LINK_DOWN tunable. These PHYs have this feature enabled by default. Signed-off-by:
Vincent Whitchurch <vincent.whitchurch@axis.com> Acked-by:
Nuno Sa <nuno.sa@analog.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20231127-adin-fld-v1-1-797f6423fd48@axis.comSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Heiner Kallweit authored
If we know that the task is going to be a no-op, don't even schedule it. And remove the check for netif_running() in the worker function, the check for flag RTL_FLAG_TASK_ENABLED is sufficient. Note that we can't remove the check for flag RTL_FLAG_TASK_ENABLED in the worker function because we have no guarantee when it will be executed. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by:
Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/c65873a3-7394-4107-99a7-83f20030779c@gmail.comSigned-off-by:
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Jakub Kicinski authored
Linus Walleij says: ==================== Create a binding for the Marvell MV88E6xxx DSA switches The Marvell switches are lacking DT bindings. I need proper schema checking to add LED support to the Marvell switch. Just how it is, it can't go on like this. Some Device Tree fixes are included in the series, these remove the major and most annoying warnings fallout noise: some warnings remain, and these are of more serious nature, such as missing phy-mode. They can be applied individually, or to the networking tree with the rest of the patches. Thanks to Andrew Lunn, Vladimir Oltean and Russell King for excellent review and feedback! This latest version employs special compatibles in the odd ABI device trees. v8: https://lore.kernel.org/r/20231114-marvell-88e6152-wan-led-v8-0-50688741691b@linaro.org v7: https://lore.kernel.org/r/20231024-marvell-88e6152-wan-led-v7-0-2869347697d1@linaro.org v6: https://lore.kernel.org/r/20231024-marvell-88e6152-wan-led-v6-0-993ab0949344@linaro.org v5: https://lore.kernel.org/r/20231023-marvell-88e6152-wan-led-v5-0-0e82952015a7@linaro.org v4: https://lore.kernel.org/r/20231018-marvell-88e6152-wan-led-v4-0-3ee0c67383be@linaro.org v3: https://lore.kernel.org/r/20231016-marvell-88e6152-wan-led-v3-0-38cd449dfb15@linaro.org v2: https://lore.kernel.org/r/20231014-marvell-88e6152-wan-led-v2-0-7fca08b68849@linaro.org v1: https://lore.kernel.org/r/20231013-marvell-88e6152-wan-led-v1-0-0712ba99857c@linaro.org ==================== Link: https://lore.kernel.org/r/20231127-marvell-88e6152-wan-led-v9-0-272934e04681@linaro.orgSigned-off-by:
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Linus Walleij authored
The Marvell MV88E6060 is one of the oldest DSA switches from Marvell, and it has DT bindings used in the wild. Let's define them properly. It is different enough from the rest of the MV88E6xxx switches that it deserves its own binding. Reviewed-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Rob Herring <robh@kernel.org> Reviewed-by:
Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231127-marvell-88e6152-wan-led-v9-5-272934e04681@linaro.orgSigned-off-by:
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Linus Walleij authored
This is an attempt to rewrite the Marvell MV88E6xxx switch bindings in YAML schema. The current text binding says: WARNING: This binding is currently unstable. Do not program it into a FLASH never to be changed again. Once this binding is stable, this warning will be removed. Well that never happened before we switched to YAML markup, we can't have it like this, what about fixing the mess? Reviewed-by:
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Linus Walleij authored
Accept special node naming variants for Marvell switches with special node names as ABI. This is maybe not the prettiest but it avoids special-casing the Marvell MV88E6xxx bindings by copying a lot of generic binding code down into that one binding just to special-case these unfixable nodes. Reviewed-by:
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Linus Walleij authored
When adding a proper schema for the Marvell mx88e6xxx switch, the scripts start complaining about this embedded example: dtschema/dtc warnings/errors: net/marvell,mvusb.example.dtb: switch@0: ports: '#address-cells' is a required property from schema $id: http://devicetree.org/schemas/net/dsa/marvell,mv88e6xxx.yaml# net/marvell,mvusb.example.dtb: switch@0: ports: '#size-cells' is a required property from schema $id: http://devicetree.org/schemas/net/dsa/marvell,mv88e6xxx.yaml# Fix this up by extending the example with those properties in the ports node. While we are at it, rename "ports" to "ethernet-ports" and rename "switch" to "ethernet-switch" as this is recommended practice. Reviewed-by:
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Linus Walleij authored
Bindings using dsa.yaml#/$defs/ethernet-ports specify that a DSA switch node need to have a ports or ethernet-ports subnode, and that is actually required, so add requirements using oneOf. Suggested-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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Jakub Kicinski authored
Jakub Kicinski says: ==================== tools: ynl: fixes for the page-pool sample and the generation process Minor fixes to the new sample and the Makefiles. ==================== Link: https://lore.kernel.org/r/20231129193622.2912353-1-kuba@kernel.orgSigned-off-by:
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Jakub Kicinski authored
Commit 2b7ac0c8 ("tools: ynl-gen: don't touch the output file if content is the same") is working too well. It was added so that ynl-regen -f doesn't make us rebuild half of the kernel, if there are no actual changes in any generated code. When ynl-gen-c is called by make, however, we're better off trusting make's tracking and overwrite the file. Otherwise if output is identical we won't update file timestamps and make will retry code gen on every invocation. Link: https://lore.kernel.org/r/20231129193622.2912353-5-kuba@kernel.orgSigned-off-by:
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Jakub Kicinski authored
Parallel builds of ynl: make -C tools/net/ynl/ -j 4 don't work correctly right now. samples get handled before generated, so build of samples does not notice that protos.a has changed. Order samples to be last. Link: https://lore.kernel.org/r/20231129193622.2912353-4-kuba@kernel.orgSigned-off-by:
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Jakub Kicinski authored
Building samples generates the following warning: In file included from page-pool.c:11: generated/netdev-user.h:21:45: warning: ‘enum netdev_xdp_rx_metadata’ declared inside parameter list will not be visible outside of this definition or declaration 21 | const char *netdev_xdp_rx_metadata_str(enum netdev_xdp_rx_metadata value); | ^~~~~~~~~~~~~~~~~~~~~~ Our magic way of including uAPI headers assumes the sample name matches the family name. We need to copy the flags over. Fixes: 637567e4 ("tools: ynl: add sample for getting page-pool information") Link: https://lore.kernel.org/r/20231129193622.2912353-3-kuba@kernel.orgSigned-off-by: -
Jakub Kicinski authored
The name of the "destroyed" field in the reply was not changed in the sample after we started calling it "detach_time". page-pool.c: In function ‘main’: page-pool.c:84:33: error: ‘struct <anonymous>’ has no member named ‘destroyed’ 84 | if (pp->_present.destroyed) | ^ Fixes: 637567e4 ("tools: ynl: add sample for getting page-pool information") Link: https://lore.kernel.org/r/20231129193622.2912353-2-kuba@kernel.orgSigned-off-by:
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- 29 Nov, 2023 14 commits
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Jakub Kicinski authored
Oleksij Rempel says: ==================== Fine-Tune Flow Control and Speed Configurations in Microchip KSZ8xxx DSA Driver This patch set focuses on enhancing the configurability of flow control, speed, and duplex settings in the Microchip KSZ8xxx DSA driver. The first patch allows more granular control over the CPU port's flow control, speed, and duplex settings. The second patch introduces a method for port configurations for port with integrated PHYs, primarily concerning flow control based on duplex mode. ==================== Link: https://lore.kernel.org/r/20231127145101.3039399-1-o.rempel@pengutronix.deSigned-off-by:
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Oleksij Rempel authored
Last part of the driver do now support phylink_mac_link_up(). So, make it not optional. Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by:
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/20231127145101.3039399-4-o.rempel@pengutronix.deSigned-off-by:
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Oleksij Rempel authored
This patch introduces the function 'ksz8_phy_port_link_up' to the Microchip KSZ8xxx driver. This function is responsible for setting up flow control and duplex settings for the ports that are integrated with PHYs. The KSZ8795 switch supports asymmetric pause control, which can't be fully utilized since a single bit controls both RX and TX pause. Despite this, the flow control can be adjusted based on the auto-negotiation process, taking into account the capabilities of both link partners. On the other hand, the KSZ8873's PORT_FORCE_FLOW_CTRL bit can be set by the hardware bootstrap, which ignores the auto-negotiation result. Therefore, even in auto-negotiation mode, we need to ensure that this bit is correctly set. When auto-negotiation isn't in use, we enforce symmetric pause control for the KSZ8795 switch. Please note, forcing flow control disable on a port while still advertising pause support isn't possible. While this scenario might not be practical or desired, it's important to be aware of this limitation when working with the KSZ8873 and similar devices. Signed-off-by:
Simon Horman <simon.horman@corigine.com> Reviewed-by:
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Oleksij Rempel authored
Allow flow control, speed, and duplex settings on the CPU port to be configurable. Previously, the speed and duplex relied on default switch values, which limited flexibility. Additionally, flow control was hardcoded and only functional in duplex mode. This update enhances the configurability of these parameters. Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Reviewed-by:
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Jakub Kicinski authored
John Fraker says: ==================== gve: Add support for non-4k page sizes. This patch series adds support for non-4k page sizes to the driver. Prior to this patch series, the driver assumes a 4k page size in many small ways, and will crash in a kernel compiled for a different page size. This changeset aims to be a minimal changeset that unblocks certain arm platforms with large page sizes. ==================== Link: https://lore.kernel.org/r/20231128002648.320892-1-jfraker@google.comSigned-off-by:
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John Fraker authored
Prior to this change, gve crashes when attempting to run in kernels with page sizes other than 4k. This change removes unnecessary references to PAGE_SIZE and replaces them with more meaningful constants. Signed-off-by:
Jordan Kimbrough <jrkim@google.com> Signed-off-by:
John Fraker <jfraker@google.com> Reviewed-by:
Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20231128002648.320892-6-jfraker@google.comSigned-off-by:
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John Fraker authored
This register is required on platforms with page sizes greater than 4k. This is because the tx side of the driver vmaps the entire queue page list of pages into a single flat address space, then uses the entire space. Without communicating the guest page size to the backend, the backend will only access the first 4k of each page in the queue page list. Signed-off-by:
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John Fraker authored
These checks are safe to remove as they are no longer enforced by the backend. Retaining them would require updating them to work differently with page sizes larger than 4k. Signed-off-by:
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John Fraker authored
adminq_pfn assumes a page size of 4k, causing this mechanism to break in kernels compiled with different page sizes. A new PCI device revision was needed for the device to be able to communicate with the driver how to set up the admin queue prior to having access to the admin queue. Signed-off-by:
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John Fraker authored
This allows the adminq to be smaller than a page, paving the way for non 4k page support. This is to support platforms where PAGE_SIZE is not 4k, such as some ARM platforms. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queueJakub Kicinski authored
Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2023-11-27 (i40e, iavf) This series contains updates to i40e and iavf drivers. Ivan Vecera performs more cleanups on i40e and iavf drivers; removing unused fields, defines, and unneeded fields. Petr Oros utilizes iavf_schedule_aq_request() helper to replace open coded equivalents. * '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: iavf: use iavf_schedule_aq_request() helper iavf: Remove queue tracking fields from iavf_adminq_ring i40e: Remove queue tracking fields from i40e_adminq_ring i40e: Remove AQ register definitions for VF types i40e: Delete unused and useless i40e_pf fields ==================== Link: https://lore.kernel.org/r/20231127211037.1135403-1-anthony.l.nguyen@intel.comSigned-off-by:
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Heiner Kallweit authored
Once upon a time, when r8169 was new, the multicast filter limit code was copied from RTL8139 driver. There the filter limit is even user-configurable. The filtering is hash-based and we don't have perfect filtering. Actually the mc filtering on RTL8125 still seems to be the same as used on 8390/NE2000. So it's not clear to me which benefit it should bring when switching to all-multi mode once a certain number of filter bits is set. More the opposite: Filtering out at least some unwanted mc traffic is better than no filtering. Also the available chip documentation doesn't mention any restriction. Therefore remove the filter limit. Signed-off-by:
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Dan Carpenter authored
Set the "err" variable on this error path. Fixes: fff292b4 ("ice: add VF representors one by one") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by:
Wojciech Drewek <wojciech.drewek@intel.com> Link: https://lore.kernel.org/r/e0349ee5-76e6-4ff4-812f-4aa0d3f76ae7@moroto.mountainSigned-off-by:
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Yu Xiao authored
Add support for ethtool -A tx on/off and rx on/off. Signed-off-by:
Yu Xiao <yu.xiao@corigine.com> Signed-off-by:
Louis Peens <louis.peens@corigine.com> Reviewed-by:
Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20231127055116.6668-1-louis.peens@corigine.comSigned-off-by:
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- 28 Nov, 2023 13 commits
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Paolo Abeni authored
Jakub Kicinski says: ==================== net: page_pool: add netlink-based introspection We recently started to deploy newer kernels / drivers at Meta, making significant use of page pools for the first time. We immediately run into page pool leaks both real and false positive warnings. As Eric pointed out/predicted there's no guarantee that applications will read / close their sockets so a page pool page may be stuck in a socket (but not leaked) forever. This happens a lot in our fleet. Most of these are obviously due to application bugs but we should not be printing kernel warnings due to minor application resource leaks. Conversely the page pool memory may get leaked at runtime, and we have no way to detect / track that, unless someone reconfigures the NIC and destroys the page pools which leaked the pages. The solution presented here is to expose the memory use of page pools via netlink. This allows for continuous monitoring of memory used by page pools, regardless if they were destroyed or not. Sample in patch 15 can print the memory use and recycling efficiency: $ ./page-pool eth0[2] page pools: 10 (zombies: 0) refs: 41984 bytes: 171966464 (refs: 0 bytes: 0) recycling: 90.3% (alloc: 656:397681 recycle: 89652:270201) v4: - use dev_net(netdev)->loopback_dev - extend inflight doc v3: https://lore.kernel.org/all/20231122034420.1158898-1-kuba@kernel.org/ - ID is still here, can't decide if it matters - rename destroyed -> detach-time, good enough? - fix build for netsec v2: https://lore.kernel.org/r/20231121000048.789613-1-kuba@kernel.org - hopefully fix build with PAGE_POOL=n v1: https://lore.kernel.org/all/20231024160220.3973311-1-kuba@kernel.org/ - The main change compared to the RFC is that the API now exposes outstanding references and byte counts even for "live" page pools. The warning is no longer printed if page pool is accessible via netlink. RFC: https://lore.kernel.org/all/20230816234303.3786178-1-kuba@kernel.org/ ==================== Link: https://lore.kernel.org/r/20231126230740.2148636-1-kuba@kernel.orgSigned-off-by:Paolo Abeni <pabeni@redhat.com>
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Jakub Kicinski authored
Regenerate the tools/ code after netdev spec changes. Add sample to query page-pool info in a concise fashion: $ ./page-pool eth0[2] page pools: 10 (zombies: 0) refs: 41984 bytes: 171966464 (refs: 0 bytes: 0) recycling: 90.3% (alloc: 656:397681 recycle: 89652:270201) Acked-by:Jesper Dangaard Brouer <hawk@kernel.org> Signed-off-by:
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Jakub Kicinski authored
Mute the periodic "stalled pool shutdown" warning if the page pool is visible to user space. Rolling out a driver using page pools to just a few hundred hosts at Meta surfaces applications which fail to reap their broken sockets. Obviously it's best if the applications are fixed, but we don't generally print warnings for application resource leaks. Admins can now depend on the netlink interface for getting page pool info to detect buggy apps. While at it throw in the ID of the pool into the message, in rare cases (pools from destroyed netns) this will make finding the pool with a debugger easier. Reviewed-by:
Eric Dumazet <edumazet@google.com> Acked-by:
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Jakub Kicinski authored
Dump the stats into netlink. More clever approaches like dumping the stats per-CPU for each CPU individually to see where the packets get consumed can be implemented in the future. A trimmed example from a real (but recently booted system): $ ./cli.py --no-schema --spec netlink/specs/netdev.yaml \ --dump page-pool-stats-get [{'info': {'id': 19, 'ifindex': 2}, 'alloc-empty': 48, 'alloc-fast': 3024, 'alloc-refill': 0, 'alloc-slow': 48, 'alloc-slow-high-order': 0, 'alloc-waive': 0, 'recycle-cache-full': 0, 'recycle-cached': 0, 'recycle-released-refcnt': 0, 'recycle-ring': 0, 'recycle-ring-full': 0}, {'info': {'id': 18, 'ifindex': 2}, 'alloc-empty': 66, 'alloc-fast': 11811, 'alloc-refill': 35, 'alloc-slow': 66, 'alloc-slow-high-order': 0, 'alloc-waive': 0, 'recycle-cache-full': 1145, 'recycle-cached': 6541, 'recycle-released-refcnt': 0, 'recycle-ring': 1275, 'recycle-ring-full': 0}, {'info': {'id': 17, 'ifindex': 2}, 'alloc-empty': 73, 'alloc-fast': 62099, 'alloc-refill': 413, ... Acked-by: -
Jakub Kicinski authored
Report when page pool was destroyed. Together with the inflight / memory use reporting this can serve as a replacement for the warning about leaked page pools we currently print to dmesg. Example output for a fake leaked page pool using some hacks in netdevsim (one "live" pool, and one "leaked" on the same dev): $ ./cli.py --no-schema --spec netlink/specs/netdev.yaml \ --dump page-pool-get [{'id': 2, 'ifindex': 3}, {'id': 1, 'ifindex': 3, 'destroyed': 133, 'inflight': 1}] Tested-by:Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by:
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Jakub Kicinski authored
Advanced deployments need the ability to check memory use of various system components. It makes it possible to make informed decisions about memory allocation and to find regressions and leaks. Report memory use of page pools. Report both number of references and bytes held. Acked-by:
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Jakub Kicinski authored
Generate netlink notifications about page pool state changes. Reviewed-by:
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Jakub Kicinski authored
Expose the very basic page pool information via netlink. Example using ynl-py for a system with 9 queues: $ ./cli.py --no-schema --spec netlink/specs/netdev.yaml \ --dump page-pool-get [{'id': 19, 'ifindex': 2, 'napi-id': 147}, {'id': 18, 'ifindex': 2, 'napi-id': 146}, {'id': 17, 'ifindex': 2, 'napi-id': 145}, {'id': 16, 'ifindex': 2, 'napi-id': 144}, {'id': 15, 'ifindex': 2, 'napi-id': 143}, {'id': 14, 'ifindex': 2, 'napi-id': 142}, {'id': 13, 'ifindex': 2, 'napi-id': 141}, {'id': 12, 'ifindex': 2, 'napi-id': 140}, {'id': 11, 'ifindex': 2, 'napi-id': 139}, {'id': 10, 'ifindex': 2, 'napi-id': 138}] Reviewed-by: -
Jakub Kicinski authored
Add a Netlink spec in YAML for getting very basic information about page pools. Reviewed-by:
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Jakub Kicinski authored
Link page pool instances to netdev for the drivers which already link to NAPI. Unless the driver is doing something very weird per-NAPI should imply per-netdev. Add netsec as well, Ilias indicates that it fits the mold. Reviewed-by:
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Jakub Kicinski authored
To avoid any issues with race conditions on accessing napi and having to think about the lifetime of NAPI objects in netlink GET - stash the napi_id to which page pool was linked at creation time. Reviewed-by:
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Jakub Kicinski authored
Link the page pools with netdevs. This needs to be netns compatible so we have two options. Either we record the pools per netns and have to worry about moving them as the netdev gets moved. Or we record them directly on the netdev so they move with the netdev without any extra work. Implement the latter option. Since pools may outlast netdev we need a place to store orphans. In time honored tradition use loopback for this purpose. Reviewed-by:
Mina Almasry <almasrymina@google.com> Reviewed-by:
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Jakub Kicinski authored
To give ourselves the flexibility of creating netlink commands and ability to refer to page pool instances in uAPIs create IDs for page pools. Reviewed-by:
Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by:
Shakeel Butt <shakeelb@google.com> Signed-off-by:
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