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2024-04-17net: dsa: bcm_sf2: provide own phylink MAC operationsRussell King (Oracle)
Convert bcm_sf2 to provide its own phylink MAC operations, thus avoiding the shim layer in DSA's port.c Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Acked-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/E1rwfu3-00752s-On@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-17selftests: openvswitch: Fix escape chars in regexp.Adrian Moreno
Character sequences starting with `\` are interpreted by python as escaped Unicode characters. However, they have other meaning in regular expressions (e.g: "\d"). It seems Python >= 3.12 starts emitting a SyntaxWarning when these escaped sequences are not recognized as valid Unicode characters. An example of these warnings: tools/testing/selftests/net/openvswitch/ovs-dpctl.py:505: SyntaxWarning: invalid escape sequence '\d' Fix all the warnings by flagging literals as raw strings. Signed-off-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Aaron Conole <aconole@redhat.com> Link: https://lore.kernel.org/r/20240416090913.2028475-1-amorenoz@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-17net: netdevsim: select PAGE_POOL in KconfigJakub Kicinski
build bot points out that I forgot to add the PAGE_POOL config dependency when adding the support in netdevsim. Fixes: 1580cbcbfe77 ("net: netdevsim: add some fake page pool use") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202404170348.thxrboF1-lkp@intel.com/ Closes: https://lore.kernel.org/oe-kbuild-all/202404170527.LIAPSyMB-lkp@intel.com/ Link: https://lore.kernel.org/r/20240416232137.2022058-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-17net: usb: qmi_wwan: add Lonsung U8300/U9300 productCoia Prant
Update the net usb qmi_wwan driver to support Longsung U8300/U9300. Enabling DTR on this modem was necessary to ensure stable operation. For U8300 Interface 4 is used by for QMI interface in stock firmware of U8300, the router which uses U8300 modem. Free the interface up, to rebind it to qmi_wwan driver. Interface 5 is used by for ADB interface in stock firmware of U8300, the router which uses U8300 modem. Free the interface up. The proper configuration is: Interface mapping is: 0: unknown (Debug), 1: AT (Modem), 2: AT, 3: PPP (NDIS / Pipe), 4: QMI, 5: ADB T: Bus=05 Lev=01 Prnt=03 Port=02 Cnt=01 Dev#= 4 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1c9e ProdID=9b05 Rev=03.18 S: Manufacturer=Android S: Product=Android C: #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=89(I) Atr=03(Int.) MxPS= 8 Ivl=32ms I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none) E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms For U9300 Interface 1 is used by for ADB interface in stock firmware of U9300, the router which uses U9300 modem. Free the interface up. Interface 4 is used by for QMI interface in stock firmware of U9300, the router which uses U9300 modem. Free the interface up, to rebind it to qmi_wwan driver. The proper configuration is: Interface mapping is: 0: ADB, 1: AT (Modem), 2: AT, 3: PPP (NDIS / Pipe), 4: QMI Note: Interface 3 of some models of the U9300 series can send AT commands. T: Bus=05 Lev=01 Prnt=05 Port=04 Cnt=01 Dev#= 6 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1c9e ProdID=9b3c Rev=03.18 S: Manufacturer=Android S: Product=Android C: #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none) E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=89(I) Atr=03(Int.) MxPS= 8 Ivl=32ms Tested successfully using Modem Manager on U9300. Tested successfully using qmicli on U9300. Signed-off-by: Coia Prant <coiaprant@gmail.com> Link: https://lore.kernel.org/r/20240415142638.1756966-1-coiaprant@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-17selftests: adopt BPF's approach to quieter buildsJakub Kicinski
selftest build is fairly noisy, it's easy to miss warnings. It's standard practice to add alternative messages in the Makefile. I was grepping for existing solutions, and found that bpf already has the right knobs. Move them to lib.mk and adopt in net. Convert the basic rules in lib.mk. Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20240411190534.444918-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-17tcp: accept bare FIN packets under memory pressureEric Dumazet
Andrew Oates reported that some macOS hosts could repeatedly send FIN packets even if the remote peer drops them and send back DUP ACK RWIN 0 packets. <quoting Andrew> 20:27:16.968254 gif0 In IP macos > victim: Flags [SEW], seq 1950399762, win 65535, options [mss 1460,nop,wscale 6,nop,nop,TS val 501897188 ecr 0,sackOK,eol], length 0 20:27:16.968339 gif0 Out IP victim > macos: Flags [S.E], seq 2995489058, ack 1950399763, win 1448, options [mss 1460,sackOK,TS val 3829877593 ecr 501897188,nop,wscale 0], length 0 20:27:16.968833 gif0 In IP macos > victim: Flags [.], ack 1, win 2058, options [nop,nop,TS val 501897188 ecr 3829877593], length 0 20:27:16.968885 gif0 In IP macos > victim: Flags [P.], seq 1:1449, ack 1, win 2058, options [nop,nop,TS val 501897188 ecr 3829877593], length 1448 20:27:16.968896 gif0 Out IP victim > macos: Flags [.], ack 1449, win 0, options [nop,nop,TS val 3829877593 ecr 501897188], length 0 20:27:19.454593 gif0 In IP macos > victim: Flags [F.], seq 1449, ack 1, win 2058, options [nop,nop,TS val 501899674 ecr 3829877593], length 0 20:27:19.454675 gif0 Out IP victim > macos: Flags [.], ack 1449, win 0, options [nop,nop,TS val 3829880079 ecr 501899674], length 0 20:27:19.455116 gif0 In IP macos > victim: Flags [F.], seq 1449, ack 1, win 2058, options [nop,nop,TS val 501899674 ecr 3829880079], length 0 The retransmits/dup-ACKs then repeat in a tight loop. </quoting Andrew> RFC 9293 3.4. Sequence Numbers states : Note that when the receive window is zero no segments should be acceptable except ACK segments. Thus, it is be possible for a TCP to maintain a zero receive window while transmitting data and receiving ACKs. However, even when the receive window is zero, a TCP must process the RST and URG fields of all incoming segments. Even if we could consider a bare FIN.ACK packet to be an ACK in RFC terms, the retransmits should use exponential backoff. Accepting the FIN in linux does not add extra memory costs, because the FIN flag will simply be merged to the tail skb in the receive queue, and incoming packet is freed. Reported-by: Andrew Oates <aoates@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Christoph Paasch <cpaasch@apple.com> Cc: Vidhi Goel <vidhi_goel@apple.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-04-17selftests: fix netfilter path in MakefileYujie Liu
Netfilter tests have been moved to a subdir under selftests/net by patch series [1]. Fix the path in selftests/Makefile accordingly. This helps fix the following error: tools/testing/selftests$ make ... make[1]: Entering directory 'tools/testing/selftests' make[1]: *** netfilter: No such file or directory. Stop. make[1]: Leaving directory 'tools/testing/selftests' [1] https://lore.kernel.org/all/20240411233624.8129-1-fw@strlen.de/ Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Yujie Liu <yujie.liu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-04-17net: phy: mediatek-ge: do not disable EEE advertisementArınç ÜNAL
The mediatek-ge PHY driver already disables EEE advertisement on the switch PHYs but my testing [1] shows that it is somehow enabled afterwards. Disabling EEE advertisement before the PHY driver initialises keeps it off. Therefore, remove disabling EEE advertisement here as it's useless. Link: https://lore.kernel.org/netdev/d286ea27-e911-4dcb-9037-b75f22b437b8@arinc9.com/ [1] Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-04-16net: pse-pd: Rectify and adapt the naming of admin_cotrol member of struct ↵Kory Maincent (Dent Project)
pse_control_config In commit 18ff0bcda6d1 ("ethtool: add interface to interact with Ethernet Power Equipment"), the 'pse_control_config' structure was introduced, housing a single member labeled 'admin_cotrol' responsible for maintaining the operational state of the PoDL PSE functions. A noticeable typographical error exists in the naming of this field ('cotrol' should be corrected to 'control'), which this commit aims to rectify. Furthermore, with upcoming extensions of this structure to encompass PoE functionalities, the field is being renamed to 'podl_admin_state' to distinctly indicate that this state is tailored specifically for PoDL." Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://lore.kernel.org/r/20240414-feature_poe-v8-3-e4bf1e860da5@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16of: property: Add fw_devlink support for pse parentKory Maincent (Dent Project)
This allows fw_devlink to create device links between consumers of a PSE and the supplier of the PSE. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://lore.kernel.org/r/20240414-feature_poe-v8-2-e4bf1e860da5@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16MAINTAINERS: net: Add Oleksij to pse-pd maintainersKory Maincent (Dent Project)
Oleksij was the first to add support for pse-pd net subsystem. Add himself to the maintainers seems logical. Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20240414-feature_poe-v8-1-e4bf1e860da5@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16selftests: drv-net: add config for netdevsimJakub Kicinski
Real driver testing will obviously require enabling more options, but will require more manual setup in the first place. For CIs running purely software tests we need to enable netdevsim. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20240416004556.1618804-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16selftests: drv-net: add stdout to the command failed exceptionJakub Kicinski
ping prints all the info to stdout. To make debug easier capture stdout in the Exception raised when command unexpectedly fails. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20240416004556.1618804-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16ip6_vti: fix memleak on netns dismantleFlorian Westphal
kmemleak reports net_device resources are no longer released, restore needs_free_netdev toggle. Sample backtrace: unreferenced object 0xffff88810874f000 (size 4096): [..] [<00000000a2b8af8b>] __kmalloc_node+0x209/0x290 [<0000000040b0a1a9>] alloc_netdev_mqs+0x58/0x470 [<00000000b4be1e78>] vti6_init_net+0x94/0x230 [<000000008830c1ea>] ops_init+0x32/0xc0 [<000000006a26fa8f>] setup_net+0x134/0x2e0 [..] Cc: Breno Leitao <leitao@debian.org> Fixes: a9b2d55a8f1e ("ip6_vti: Do not use custom stat allocator") Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240415122346.26503-1-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16dt-bindings: net: nxp,dwmac-imx: allow nvmem cells propertyPeng Fan
Allow nvmem-cells and nvmem-cell-names to get mac_address from onchip fuse. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240415103621.1644735-1-peng.fan@oss.nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16net: ipa: Remove unnecessary print function dev_err()Jiapeng Chong
The print function dev_err() is redundant because platform_get_irq_byname() already prints an error. ./drivers/net/ipa/ipa_interrupt.c:300:2-9: line 300 is redundant because platform_get_irq() already prints an error. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8756 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240415031456.10805-1-jiapeng.chong@linux.alibaba.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16net/handshake: remove redundant assignment to variable retColin Ian King
The variable is being assigned an value and then is being re-assigned a new value in the next statement. The assignment is redundant and can be removed. Cleans up clang scan build warning: net/handshake/tlshd.c:216:2: warning: Value stored to 'ret' is never read [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Link: https://lore.kernel.org/r/20240415100713.483399-1-colin.i.king@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16net: dsa: microchip: drop unneeded MODULE_ALIASKrzysztof Kozlowski
The ID table already has respective entry and MODULE_DEVICE_TABLE and creates proper alias for SPI driver. Having another MODULE_ALIAS causes the alias to be duplicated. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20240414154929.127045-1-krzk@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-16af_unix: Try not to hold unix_gc_lock during accept().Kuniyuki Iwashima
Commit dcf70df2048d ("af_unix: Fix up unix_edge.successor for embryo socket.") added spin_lock(&unix_gc_lock) in accept() path, and it caused regression in a stress test as reported by kernel test robot. If the embryo socket is not part of the inflight graph, we need not hold the lock. To decide that in O(1) time and avoid the regression in the normal use case, 1. add a new stat unix_sk(sk)->scm_stat.nr_unix_fds 2. count the number of inflight AF_UNIX sockets in the receive queue under unix_state_lock() 3. move unix_update_edges() call under unix_state_lock() 4. avoid locking if nr_unix_fds is 0 in unix_update_edges() Reported-by: kernel test robot <oliver.sang@intel.com> Closes: https://lore.kernel.org/oe-lkp/202404101427.92a08551-oliver.sang@intel.com Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20240413021928.20946-1-kuniyu@amazon.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16Merge branch '100GbE' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== This series contains updates to ice driver only. Lukasz removes unnecessary argument from ice_fdir_comp_rules(). Jakub adds support for ethtool 'ether' flow-type rules. Jake moves setting of VF MSI-X value to initialization function and adds tracking of VF relative MSI-X index. * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: ice: store VF relative MSI-X index in q_vector->vf_reg_idx ice: set vf->num_msix in ice_initialize_vf_entry() ice: Implement 'flow-type ether' rules ice: Remove unnecessary argument from ice_fdir_comp_rules() ==================== Link: https://lore.kernel.org/r/20240412210534.916756-1-anthony.l.nguyen@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16Merge branch 'selftests-assortment-of-fixes'Paolo Abeni
Petr Machata says: ==================== selftests: Assortment of fixes This is a loose follow-up to the Kernel CI patchset posted recently. It contains various fixes that were supposed to be part of said patchset, but didn't fit due to its size. The latter 4 patches were written independently of the CI effort, but again didn't fit in their intended patchsets. - Patch #1 unifies code of two very similar looking functions, busywait() and slowwait(). - Patch #2 adds sanity checks around the setting of NETIFS, which carries list of interfaces to run on. - Patch #3 changes bail_on_lldpad() to SKIP instead of FAILing. - Patches #4 to #7 fix issues in selftests. - Patches #8 to #10 add topology diagrams to several selftests. This should have been part of the mlxsw leg of NH group stats patches, but again, it did not fit in due to size. ==================== Link: https://lore.kernel.org/r/cover.1712940759.git.petrm@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: forwarding: router_nh: Add a diagramPetr Machata
This test lacks a topology diagram, making the setup not obvious. Add one. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: forwarding: router_mpath_nh_res: Add a diagramPetr Machata
This test lacks a topology diagram, making the setup not obvious. Add one. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: forwarding: router_mpath_nh: Add a diagramPetr Machata
This test lacks a topology diagram, making the setup not obvious. Add one. Cc: David Ahern <dsahern@gmail.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: mlxsw: ethtool_lanes: Wait for lanes parameter dump explicitlyDanielle Ratson
The ethtool dump includes the lanes parameter only when the port is up. Therefore, the ethtool_lanes.sh test waits for ports to come before testing the lanes parameter. In some cases, the test considers the port as up, but the lanes parameter is not yet dumped although assumed to be, resulting in ethtool_lanes.sh test failure. To avoid that, ensure that the lanes parameter is indeed dumped by waiting for it explicitly, before preforming the test cases. Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: drivers: hw: Include tc_common.sh in hw_stats_l3Petr Machata
The tests use the constant TC_HIT_TIMEOUT when waiting on the counter values. However it does not include tc_common.sh where the counter is specified. The test has been robust in our testing, which means the counter is bumped quickly enough that the updated value is available already on the first iteration. Nevertheless it's not correct. Include tc_common.sh as appropriate. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: drivers: hw: ethtool.sh: Adjust outputPetr Machata
Some log_test calls are done in a loop, and lead to the same log output. This might prove tricky to deduplicate for automated tools. Instead, roll the unique information from log_info to log_test, and drop the log_info. This also leads to more compact and clearer output. This change prompts rewording the messages so that they are not excessively long. Some check_err messages do not indicate what the issue actually is, so reword them to say it's a "ping with", like is the case in some other instances in this test. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: drivers: hw: Fix ethtool_rmonPetr Machata
When rx-pktsNtoM reports a range that involves very low-valued range, such as 0-64, the calculated length of the packet will be -4, because FCS is subtracted from the value. mausezahn then confuses the value for an option and bails out. As a result, the test dumps many mausezahn error messages. Instead, cap the value at 0. mausezahn will use an appropriate minimum packet length. Cc: Vladimir Oltean <vladimir.oltean@nxp.com> Cc: Tobias Waldekranz <tobias@waldekranz.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: forwarding: bail_on_lldpad() should SKIPPetr Machata
$ksft_skip is used to mark selftests that have tooling issues. The fact that LLDPad is running, but shouldn't, is one such issue. Therefore have bail_on_lldpad() bail with $ksft_skip. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: forwarding: lib.sh: Validate NETIFSPetr Machata
The variable should contain at least NUM_NETIFS interfaces, stored as keys named "p$i", for i in `seq $NUM_NETIFS`. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16selftests: net: Unify code of busywait() and slowwait()Petr Machata
Bodies of busywait() and slowwait() functions are almost identical. Extract the common code into a helper, loopy_wait, and convert busywait() and slowwait() into trivial wrappers. Moreover, the fact that slowwait() uses seconds for units is really not intuitive, and the comment does not help much. Instead make the unit part of the name of the argument to further clarify what units are expected. Cc: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16net: dsa: mt7530: provide own phylink MAC operationsRussell King (Oracle)
Convert mt753x to provide its own phylink MAC operations, thus avoiding the shim layer in DSA's port.c Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com> Link: https://lore.kernel.org/r/E1rvIco-006bQu-Fq@rmk-PC.armlinux.org.uk Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16net: dsa: lantiq_gswip: provide own phylink MAC operationsRussell King (Oracle)
Convert lantiq_gswip to provide its own phylink MAC operations, thus avoiding the shim layer in DSA's port.c. For lantiq_gswip, it means we end up with a common instance of phylink MAC operations that are shared between the different variants, rather than having duplicated initialisers in dsa_switch_ops. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/E1rvIcj-006bQo-B3@rmk-PC.armlinux.org.uk Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16net: dsa: qca8k: provide own phylink MAC operationsRussell King (Oracle)
Convert qca8k to provide its own phylink MAC operations, thus avoiding the shim layer in DSA's port.c. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/E1rvIce-006bQi-58@rmk-PC.armlinux.org.uk Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16net: dsa: ar9331: provide own phylink MAC operationsRussell King (Oracle)
Convert ar9331 to provide its own phylink MAC operations, thus avoiding the shim layer in DSA's port.c. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/E1rvIcZ-006bQc-0W@rmk-PC.armlinux.org.uk Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-16net: dsa: sja1105: provide own phylink MAC operationsRussell King (Oracle)
Convert sja1105 to provide its own phylink MAC operations, thus avoiding the shim layer in DSA's port.c Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/r/E1rvIcT-006bQW-S3@rmk-PC.armlinux.org.uk Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-04-15Merge branch 'selftests-net-exercise-page-pool-reporting-via-netlink'Jakub Kicinski
Jakub Kicinski says: ==================== selftests: net: exercise page pool reporting via netlink Add a basic test for page pool netlink reporting. v1: https://lore.kernel.org/all/20240411012815.174400-1-kuba@kernel.org/ ==================== Link: https://lore.kernel.org/r/20240412141436.828666-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15selftests: net: exercise page pool reporting via netlinkJakub Kicinski
Add a Python test for the basic ops. # ./net/nl_netdev.py KTAP version 1 1..3 ok 1 nl_netdev.empty_check ok 2 nl_netdev.lo_check ok 3 nl_netdev.page_pool_check # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/20240412141436.828666-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15selftests: net: support use of NetdevSimDev under "with" in pythonJakub Kicinski
Using "with" on an entire driver test env is supported already, but it's also useful to use "with" on an individual nsim. Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/20240412141436.828666-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15selftests: net: print full exception on failureJakub Kicinski
Instead of a summary line print the full exception. This makes debugging Python tests much easier. Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/20240412141436.828666-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15selftests: net: print report check location in python testsJakub Kicinski
Developing Python tests is a bit annoying because when test fails we only print the fail message and no info about which exact check led to it. Print the location (the first line of this example is new): # At /root/ksft-net-drv/./net/nl_netdev.py line 38: # Check failed 0 != 10 not ok 3 nl_netdev.page_pool_check Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/20240412141436.828666-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15tools: ynl: don't return None for dumpsJakub Kicinski
YNL currently reports None for empty dump: $ cli.py ...netdev.yaml --dump page-pool-get None This doesn't matter for the CLI but when writing YNL based tests having to deal with either list or None is annoying. Limit the None conversion to non-dump ops: $ cli.py ...netdev.yaml --dump page-pool-get [] Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20240412141436.828666-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15net: netdevsim: add some fake page pool useJakub Kicinski
Add very basic page pool use so that we can exercise the netlink uAPI in a selftest. Page pool gets created on open, destroyed on close. But we control allocating of a single page thru debugfs. This page may survive past the page pool itself so that we can test orphaned page pools. Link: https://lore.kernel.org/r/20240412141436.828666-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15Merge branch 'net-dqs-optimize-if-stall-threshold-is-not-set'Jakub Kicinski
Breno Leitao says: ==================== net: dqs: optimize if stall threshold is not set Here are four patches aimed at enhancing the Dynamic Queue Limit (DQL) subsystem within the networking stack. The first two commits involve code refactoring, while the third patch introduces the actual change. The fourth patch just improves the cache locality. Typically, when DQL is enabled, stall information is always populated through dql_queue_stall(). However, this information is only necessary if a stall threshold is set, which is stored in struct dql->stall_thrs. Although dql_queue_stall() is relatively inexpensive, it is not entirely free due to memory barriers and similar overheads. To optimize performance, refrain from calling dql_queue_stall() when no stall threshold is set, thus avoiding the processing of unnecessary information. v1: https://lore.kernel.org/all/20240404145939.3601097-1-leitao@debian.org/ ==================== Link: https://lore.kernel.org/r/20240411192241.2498631-1-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15net: dqs: make struct dql more cache efficientBreno Leitao
With the previous change, struct dqs->stall_thrs will be in the hot path (at queue side), even if DQS is disabled. The other fields accessed in this function (last_obj_cnt and num_queued) are in the first cache line, let's move this field (stall_thrs) to the very first cache line, since there is a hole there. This does not change the structure size, since it moves an short (2 bytes) to 4-bytes whole in the first cache line. This is the new structure format now: struct dql { unsigned int num_queued; unsigned int last_obj_cnt; ... short unsigned int stall_thrs; /* XXX 2 bytes hole, try to pack */ ... /* --- cacheline 1 boundary (64 bytes) --- */ ... /* Longest stall detected, reported to user */ short unsigned int stall_max; /* XXX 2 bytes hole, try to pack */ }; Also, read the stall_thrs (now in the very first cache line) earlier, together with dql->num_queued (also in the first cache line). Suggested-by: Jakub Kicinski <kuba@kernel.org> Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://lore.kernel.org/r/20240411192241.2498631-5-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15net: dql: Optimize stall information populationBreno Leitao
When Dynamic Queue Limit (DQL) is set, it always populate stall information through dql_queue_stall(). However, this information is only necessary if a stall threshold is set, stored in struct dql->stall_thrs. dql_queue_stall() is cheap, but not free, since it does have memory barriers and so forth. Do not call dql_queue_stall() if there is no stall threshold set, and save some CPU cycles. Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://lore.kernel.org/r/20240411192241.2498631-4-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15net: dql: Separate queue function responsibilitiesBreno Leitao
The dql_queued() function currently handles both queuing object counts and populating bitmaps for reporting stalls. This commit splits the bitmap population into a separate function, allowing for conditional invocation in scenarios where the feature is disabled. This refactor maintains functionality while improving code organization. Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://lore.kernel.org/r/20240411192241.2498631-3-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15net: dql: Avoid calling BUG() when WARN() is enoughBreno Leitao
If the dql_queued() function receives an invalid argument, WARN about it and continue, instead of crashing the kernel. This was raised by checkpatch, when I am refactoring this code (see following patch/commit) WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://lore.kernel.org/r/20240411192241.2498631-2-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-15Merge branch 'cpsw-xdp'David S. Miller
Julien Panis says: ==================== Add minimal XDP support to TI AM65 CPSW Ethernet driver This patch adds XDP support to TI AM65 CPSW Ethernet driver. The following features are implemented: NETDEV_XDP_ACT_BASIC, NETDEV_XDP_ACT_REDIRECT, and NETDEV_XDP_ACT_NDO_XMIT. Zero-copy and non-linear XDP buffer supports are NOT implemented. Besides, the page pool memory model is used to get better performance. ==================== Signed-off-by: Julien Panis <jpanis@baylibre.com>
2024-04-15net: ethernet: ti: am65-cpsw: Add minimal XDP supportJulien Panis
This patch adds XDP (eXpress Data Path) support to TI AM65 CPSW Ethernet driver. The following features are implemented: - NETDEV_XDP_ACT_BASIC (XDP_PASS, XDP_TX, XDP_DROP, XDP_ABORTED) - NETDEV_XDP_ACT_REDIRECT (XDP_REDIRECT) - NETDEV_XDP_ACT_NDO_XMIT (ndo_xdp_xmit callback) The page pool memory model is used to get better performance. Below are benchmark results obtained for the receiver with iperf3 default parameters: - Without page pool: 495 Mbits/sec - With page pool: 605 Mbits/sec (actually 610 Mbits/sec, with a 5 Mbits/sec loss due to extra processing in the hot path to handle XDP). Signed-off-by: Julien Panis <jpanis@baylibre.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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