Changes in sysfs-class-net-dsa

d0034a7a4ac7fae708146ac0059b9c47a1543f0d - Merge branch 'next' into for-linus

Tue, 04 May 2021 20:46:00 +0200

Merge branch 'next' into for-linusPrepare input updates for 5.13 merge window. List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

b7f8f259896f669f131713b0c74ba4d008daa71d - Merge tag 'v5.12-rc7' into ecryptfs/next

Mon, 19 Apr 2021 06:39:17 +0200

Merge tag 'v5.12-rc7' into ecryptfs/nextRequired to pick up idmapped mount changes which changed some functionparameters. List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

5acac83bf2e42f51ab9fd315d657798754bf0bb8 - Merge tag 'v5.12-rc4' into next

Thu, 25 Mar 2021 19:46:10 +0100

Merge tag 'v5.12-rc4' into nextSync up with the mainline to bring in newest APIs. List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

f8bade6c9a6213c2c5ba6e5bf32415ecab6e41e5 - Merge drm/drm-next into drm-misc-next

Tue, 16 Mar 2021 09:06:23 +0100

Merge drm/drm-next into drm-misc-nextNoralf needs some patches in 5.12-rc3, and we've been delaying the 5.12merge due to the swap issue so it looks like a good time.Signed-off-by: Maxime Ripard List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

b470ebc9e0e57f53d1db9c49b8a3de4086babd05 - Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Sun, 14 Mar 2021 16:34:35 +0100

Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgentPull irqchip fixes from Marc Zyngier: - More compatible strings for the Ingenic irqchip (introducing the JZ4760B SoC) - Select GENERIC_IRQ_MULTI_HANDLER on the ARM ep93xx platform - Drop all GENERIC_IRQ_MULTI_HANDLER selections from the irqchip Kconfig, now relying on the architecture to get it right - Drop the debugfs_file field from struct irq_domain, now that debugfs can track things on its own List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

35bb28ece90dfb7f72b77ba529f25f79323d9581 - Merge drm/drm-next into drm-intel-next

Thu, 11 Mar 2021 07:19:46 +0100

Merge drm/drm-next into drm-intel-nextSync up with upstream.Signed-off-by: Jani Nikula List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

4c9f4865f4604744d4f1a43db22ac6ec9dc8e587 - Merge branch 'fixes-rc2' into fixes

Mon, 08 Mar 2021 10:34:12 +0100

Merge branch 'fixes-rc2' into fixes List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

cdd38c5f1ce4398ec58fec95904b75824daab7b5 - Merge remote-tracking branch 'net/master'

Wed, 24 Feb 2021 13:36:58 +0100

Merge remote-tracking branch 'net/master' List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

72d6e4871f0457dc9e498f8437ea344ee6b78075 - Merge commit '3e10585335b7967326ca7b4118cada0d2d00a2ab' into v5.12/vfio/next

Mon, 22 Feb 2021 18:14:24 +0100

Merge commit '3e10585335b7967326ca7b4118cada0d2d00a2ab' into v5.12/vfio/nextUpdate to new follow_pte() definition List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

51e6d17809c85e1934600ec4cdb85552e9bda254 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Sun, 21 Feb 2021 02:45:32 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextPull networking updates from David Miller: "Here is what we have this merge window: 1) Support SW steering for mlx5 Connect-X6Dx, from Yevgeny Kliteynik. 2) Add RSS multi group support to octeontx2-pf driver, from Geetha Sowjanya. 3) Add support for KS8851 PHY. From Marek Vasut. 4) Add support for GarfieldPeak bluetooth controller from Kiran K. 5) Add support for half-duplex tcan4x5x can controllers. 6) Add batch skb rx processing to bcrm63xx_enet, from Sieng Piaw Liew. 7) Rework RX port offload infrastructure, particularly wrt, UDP tunneling, from Jakub Kicinski. 8) Add BCM72116 PHY support, from Florian Fainelli. 9) Remove Dsa specific notifiers, they are unnecessary. From Vladimir Oltean. 10) Add support for picosecond rx delay in dwmac-meson8b chips. From Martin Blumenstingl. 11) Support TSO on xfrm interfaces from Eyal Birger. 12) Add support for MP_PRIO to mptcp stack, from Geliang Tang. 13) Support BCM4908 integrated switch, from Rafał Miłecki. 14) Support for directly accessing kernel module variables via module BTF info, from Andrii Naryiko. 15) Add DASH (esktop and mobile Architecture for System Hardware) support to r8169 driver, from Heiner Kallweit. 16) Add rx vlan filtering to dpaa2-eth, from Ionut-robert Aron. 17) Add support for 100 base0x SFP devices, from Bjarni Jonasson. 18) Support link aggregation in DSA, from Tobias Waldekranz. 19) Support for bitwidse atomics in bpf, from Brendan Jackman. 20) SmartEEE support in at803x driver, from Russell King. 21) Add support for flow based tunneling to GTP, from Pravin B Shelar. 22) Allow arbitrary number of interconnrcts in ipa, from Alex Elder. 23) TLS RX offload for bonding, from Tariq Toukan. 24) RX decap offklload support in mac80211, from Felix Fietkou. 25) devlink health saupport in octeontx2-af, from George Cherian. 26) Add TTL attr to SCM_TIMESTAMP_OPT_STATS, from Yousuk Seung 27) Delegated actionss support in mptcp, from Paolo Abeni. 28) Support receive timestamping when doin zerocopy tcp receive. From Arjun Ray. 29) HTB offload support for mlx5, from Maxim Mikityanskiy. 30) UDP GRO forwarding, from Maxim Mikityanskiy. 31) TAPRIO offloading in dsa hellcreek driver, from Kurt Kanzenbach. 32) Weighted random twos choice algorithm for ipvs, from Darby Payne. 33) Fix netdev registration deadlock, from Johannes Berg. 34) Various conversions to new tasklet api, from EmilRenner Berthing. 35) Bulk skb allocations in veth, from Lorenzo Bianconi. 36) New ethtool interface for lane setting, from Danielle Ratson. 37) Offload failiure notifications for routes, from Amit Cohen. 38) BCM4908 support, from Rafał Miłecki. 39) Support several new iwlwifi chips, from Ihab Zhaika. 40) Flow drector support for ipv6 in i40e, from Przemyslaw Patynowski. 41) Support for mhi prrotocols, from Loic Poulain. 42) Optimize bpf program stats. 43) Implement RFC6056, for better port randomization, from Eric Dumazet. 44) hsr tag offloading support from George McCollister. 45) Netpoll support in qede, from Bhaskar Upadhaya. 46) 2005/400g speed support in bonding 3ad mode, from Nikolay Aleksandrov. 47) Netlink event support in mptcp, from Florian Westphal. 48) Better skbuff caching, from Alexander Lobakin. 49) MRP (Media Redundancy Protocol) offloading in DSA and a few drivers, from Horatiu Vultur. 50) mqprio saupport in mvneta, from Maxime Chevallier. 51) Remove of_phy_attach, no longer needed, from Florian Fainelli"* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1766 commits) octeontx2-pf: Fix otx2_get_fecparam() cteontx2-pf: cn10k: Prevent harmless double shift bugs net: stmmac: Add PCI bus info to ethtool driver query output ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary ptp: ptp_clockmatrix: Simplify code - remove unnecessary `err` variable. ptp: ptp_clockmatrix: Coding style - tighten vertical spacing. ptp: ptp_clockmatrix: Clean-up dev_*() messages. ptp: ptp_clockmatrix: Remove unused header declarations. ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable. ptp: ptp_clockmatrix: Add wait_for_sys_apll_dpll_lock. net: stmmac: dwmac-sun8i: Add a shutdown callback net: stmmac: dwmac-sun8i: Minor probe function cleanup net: stmmac: dwmac-sun8i: Use reset_control_reset net: stmmac: dwmac-sun8i: Remove unnecessary PHY power check net: stmmac: dwmac-sun8i: Return void from PHY unpower r8169: use macro pm_ptr net: mdio: Remove of_phy_attach() net: mscc: ocelot: select PACKING in the Kconfig net: re-solve some conflicts after net -> net-next merge net: dsa: tag_rtl4_a: Support also egress tags ... List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

56435d9145f5b97decca66244d2049e2d5e4616d - Merge branch 'tag_8021q-for-ocelot-switches'

Sat, 30 Jan 2021 06:25:27 +0100

Merge branch 'tag_8021q-for-ocelot-switches'Vladimir Oltean says:====================tag_8021q for Ocelot switchesThe Felix switch inside LS1028A has an issue. It has a 2.5G CPU port,and the external ports, in the majority of use cases, run at 1G. Thismeans that, when the CPU injects traffic into the switch, it is veryeasy to run into congestion. This is not to say that it is impossible toenter congestion even with all ports running at the same speed, justthat the default configuration is already very prone to that by design.Normally, the way to deal with that is using Ethernet flow control(PAUSE frames).However, this functionality is not working today with the ENETC - Felixswitch pair. The hardware issue is undergoing documentation right now asan erratum within NXP, but several customers have been requesting areasonable workaround for it.In truth, the LS1028A has 2 internal port pairs. The lack of flow controlis an issue only when NPI mode (Node Processor Interface, aka the modewhere the "CPU port module", which carries DSA-style tagged packets, isconnected to a regular Ethernet port) is used, and NPI mode is supportedby Felix on a single port.In past BSPs, we have had setups where both internal port pairs wereenabled. We were advertising the following setup:"data port" "control port" (2.5G) (1G) eno2 eno3 ^ ^ | | | regular | DSA-tagged | frames | frames | | v v swp4 swp5This works but is highly unpractical, due to NXP shifting the task ofdesigning a functional system (choosing which port to use, depending ontype of traffic required) up to the end user. The swpN interfaces wouldhave to be bridged with swp4, in order for the eno2 "data port" to haveaccess to the outside network. And the swpN interfaces would still becapable of IP networking. So running a DHCP client would give us two IPinterfaces from the same subnet, one assigned to eno2, and the other toswpN (0, 1, 2, 3).Also, the dual port design doesn't scale. When attaching another DSAswitch to a Felix port, the end result is that the "data port" cannotcarry any meaningful data to the external world, since it lacks the DSAtags required to traverse the sja1105 switches below. All that trafficneeds to go through the "control port".So in newer BSPs there was a desire to simplify that setup, and onlyhave one internal port pair: eno2 eno3 ^ | | DSA-tagged x disabled | frames | v swp4 swp5However, this setup only exacerbates the issue of not having flowcontrol on the NPI port, since that is the only port now. Also, thereare use cases that still require the "data port", such as IEEE 802.1CB(TSN stream identification doesn't work over an NPI port), sourceMAC address learning over NPI, etc.Again, there is a desire to keep the simplicity of the single internalport setup, while regaining the benefits of having a dedicated data portas well. And this series attempts to deliver just that.So the NPI functionality is disabled conditionally. Its purpose was:- To ensure individually addressable ports on TX. This can be replaced by using some designated VLAN tags which are pushed by the DSA tagger code, then removed by the switch (so they are invisible to the outside world and to the user).- To ensure source port identification on RX. Again, this can be replaced by using some designated VLAN tags to encapsulate all RX traffic (each VLAN uniquely identifies a source port). The DSA tagger determines which port it was based on the VLAN number, then removes that header.- To deliver PTP timestamps. This cannot be obtained through VLAN headers, so we need to take a step back and see how else we can do that. The Microchip Ocelot-1 (VSC7514 MIPS) driver performs manual injection/extraction from the CPU port module using register-based MMIO, and not over Ethernet. We will need to do the same from DSA, which makes this tagger a sort of hybrid between DSA and pure switchdev.====================Link: https://lore.kernel.org/r/20210129010009.3959398-1-olteanv@gmail.comSigned-off-by: Jakub Kicinski List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

53da0ebaad102626f56495e0967a614f89a2acc8 - net: dsa: allow changing the tag protocol via the "tagging" device attribute

Fri, 29 Jan 2021 02:00:06 +0100

net: dsa: allow changing the tag protocol via the "tagging" device attributeCurrently DSA exposes the following sysfs:$ cat /sys/class/net/eno2/dsa/taggingocelotwhich is a read-only device attribute, introduced in the kernel ascommit 98cdb4807123 ("net: dsa: Expose tagging protocol to user-space"),and used by libpcap since its commit 993db3800d7d ("Add support for DSAlink-layer types").It would be nice if we could extend this device attribute by making itwritable:$ echo ocelot-8021q > /sys/class/net/eno2/dsa/taggingThis is useful with DSA switches that can make use of more than onetagging protocol. It may be useful in dsa_loop in the future too, toperform offline testing of various taggers, or for changing between dsaand edsa on Marvell switches, if that is desirable.In terms of implementation, drivers can support this feature byimplementing .change_tag_protocol, which should always leave the switchin a consistent state: either with the new protocol if things went well,or with the old one if something failed. Teardown of the old protocol,if necessary, must be handled by the driver.Some things remain as before:- The .get_tag_protocol is currently only called at probe time, to load the initial tagging protocol driver. Nonetheless, new drivers should report the tagging protocol in current use now.- The driver should manage by itself the initial setup of tagging protocol, no later than the .setup() method, as well as destroying resources used by the last tagger in use, no earlier than the .teardown() method.For multi-switch DSA trees, error handling is a bit more complicated,since e.g. the 5th out of 7 switches may fail to change the tagprotocol. When that happens, a revert to the original tag protocol isattempted, but that may fail too, leaving the tree in an inconsistentstate despite each individual switch implementing .change_tag_protocoltransactionally. Since the intersection between drivers that implement.change_tag_protocol and drivers that support D in DSA is currently theempty set, the possibility for this error to happen is ignored for now.Testing:$ insmod mscc_felix.ko[ 79.549784] mscc_felix 0000:00:00.5: Adding to iommu group 14[ 79.565712] mscc_felix 0000:00:00.5: Failed to register DSA switch: -517$ insmod tag_ocelot.ko$ rmmod mscc_felix.ko$ insmod mscc_felix.ko[ 97.261724] libphy: VSC9959 internal MDIO bus: probed[ 97.267363] mscc_felix 0000:00:00.5: Found PCS at internal MDIO address 0[ 97.274998] mscc_felix 0000:00:00.5: Found PCS at internal MDIO address 1[ 97.282561] mscc_felix 0000:00:00.5: Found PCS at internal MDIO address 2[ 97.289700] mscc_felix 0000:00:00.5: Found PCS at internal MDIO address 3[ 97.599163] mscc_felix 0000:00:00.5 swp0 (uninitialized): PHY [0000:00:00.3:10] driver [Microsemi GE VSC8514 SyncE] (irq=POLL)[ 97.862034] mscc_felix 0000:00:00.5 swp1 (uninitialized): PHY [0000:00:00.3:11] driver [Microsemi GE VSC8514 SyncE] (irq=POLL)[ 97.950731] mscc_felix 0000:00:00.5 swp0: configuring for inband/qsgmii link mode[ 97.964278] 8021q: adding VLAN 0 to HW filter on device swp0[ 98.146161] mscc_felix 0000:00:00.5 swp2 (uninitialized): PHY [0000:00:00.3:12] driver [Microsemi GE VSC8514 SyncE] (irq=POLL)[ 98.238649] mscc_felix 0000:00:00.5 swp1: configuring for inband/qsgmii link mode[ 98.251845] 8021q: adding VLAN 0 to HW filter on device swp1[ 98.433916] mscc_felix 0000:00:00.5 swp3 (uninitialized): PHY [0000:00:00.3:13] driver [Microsemi GE VSC8514 SyncE] (irq=POLL)[ 98.485542] mscc_felix 0000:00:00.5: configuring for fixed/internal link mode[ 98.503584] mscc_felix 0000:00:00.5: Link is Up - 2.5Gbps/Full - flow control rx/tx[ 98.527948] device eno2 entered promiscuous mode[ 98.544755] DSA: tree 0 setup$ ping 10.0.0.1PING 10.0.0.1 (10.0.0.1): 56 data bytes64 bytes from 10.0.0.1: seq=0 ttl=64 time=2.337 ms64 bytes from 10.0.0.1: seq=1 ttl=64 time=0.754 ms^C - 10.0.0.1 ping statistics -2 packets transmitted, 2 packets received, 0% packet lossround-trip min/avg/max = 0.754/1.545/2.337 ms$ cat /sys/class/net/eno2/dsa/taggingocelot$ cat ./test_ocelot_8021q.sh #!/bin/bash ip link set swp0 down ip link set swp1 down ip link set swp2 down ip link set swp3 down ip link set swp5 down ip link set eno2 down echo ocelot-8021q > /sys/class/net/eno2/dsa/tagging ip link set eno2 up ip link set swp0 up ip link set swp1 up ip link set swp2 up ip link set swp3 up ip link set swp5 up$ ./test_ocelot_8021q.sh./test_ocelot_8021q.sh: line 9: echo: write error: Protocol not available$ rmmod tag_ocelot.kormmod: can't unload module 'tag_ocelot': Resource temporarily unavailable$ insmod tag_ocelot_8021q.ko$ ./test_ocelot_8021q.sh$ cat /sys/class/net/eno2/dsa/taggingocelot-8021q$ rmmod tag_ocelot.ko$ rmmod tag_ocelot_8021q.kormmod: can't unload module 'tag_ocelot_8021q': Resource temporarily unavailable$ ping 10.0.0.1PING 10.0.0.1 (10.0.0.1): 56 data bytes64 bytes from 10.0.0.1: seq=0 ttl=64 time=0.953 ms64 bytes from 10.0.0.1: seq=1 ttl=64 time=0.787 ms64 bytes from 10.0.0.1: seq=2 ttl=64 time=0.771 ms$ rmmod mscc_felix.ko[ 645.544426] mscc_felix 0000:00:00.5: Link is Down[ 645.838608] DSA: tree 0 torn down$ rmmod tag_ocelot_8021q.koSigned-off-by: Vladimir Oltean Signed-off-by: Jakub Kicinski List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

95d002e0a34cb0f238abb39987f9980f325d8332 - Merge tag 'drm-intel-next-2019-04-04' into gvt-next

Tue, 16 Apr 2019 10:50:34 +0200

Merge tag 'drm-intel-next-2019-04-04' into gvt-nextMerge back drm-intel-next for engine name definition refinementand 54939ea0bd85 ("drm/i915: Switch to use HWS indices rather than addresses")that would need gvt fixes to depend on.Signed-off-by: Zhenyu Wang List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

3eb66e91a25497065c5322b1268cbc3953642227 - Merge tag 'v4.20' into for-linus

Tue, 15 Jan 2019 00:33:23 +0100

Merge tag 'v4.20' into for-linusSync with mainline to get linux/overflow.h among other things. List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

4116941b7a703f8c770998bb3a59966608cb5bb2 - Merge tag 'v4.20' into next

Mon, 14 Jan 2019 07:35:32 +0100

Merge tag 'v4.20' into nextMerge with mainline to bring in the new APIs. List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

23d19ba06b9c5614d6457f5fed349ec8f6d4dac9 - Merge drm/drm-next into drm-misc-next

Fri, 11 Jan 2019 16:32:10 +0100

Merge drm/drm-next into drm-misc-nextdrm-next has been forwarded to 5.0-rc1, and we need it to apply the damagehelper for dirtyfb series from Noralf Trønnes.Signed-off-by: Maxime Ripard List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

3eb0930a425b086bdab38156aa4708427479a201 - Merge drm/drm-next into drm-intel-next-queued

Tue, 08 Jan 2019 09:50:22 +0100

Merge drm/drm-next into drm-intel-next-queuedGenerally catch up with 5.0-rc1, and specifically get the changes:96d4f267e40f ("Remove 'type' argument from access_ok() function")0b2c8f8b6b0c ("i915: fix missing user_access_end() in page fault exception case")594cc251fdd0 ("make 'user_access_begin()' do 'access_ok()'")Signed-off-by: Jani Nikula List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

bd8879faafe6d057237461c4d58d8b0d37b9e3ee - Merge branches 'for-4.20/upstream-fixes', 'for-4.21/core', 'for-4.21/hid-asus', 'for-4.21/hid-core', 'for-4.21/hid-cougar', 'for-4.21/hidraw', 'for-4.21/highres-wheel' and 'for-4.21/ish' into for-linus

Thu, 03 Jan 2019 12:50:28 +0100

Merge branches 'for-4.20/upstream-fixes', 'for-4.21/core', 'for-4.21/hid-asus', 'for-4.21/hid-core', 'for-4.21/hid-cougar', 'for-4.21/hidraw', 'for-4.21/highres-wheel' and 'for-4.21/ish' into for-linus List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

4b5f747e82b12b6d8ab815fc259827a615c7f2c3 - Merge miscellaneous libnvdimm updates for 4.21

Fri, 28 Dec 2018 04:54:10 +0100

Merge miscellaneous libnvdimm updates for 4.21* Use common helpers, bitmap_zalloc() and kstrndup(), to replace open coded versions.* Clarify the comments around hotplug vs initial init case for the nfit driver.* Cleanup the libnvdimm init path. List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa

31d1b7710262fba12282b24083f20dc76e0efc93 - Merge tag 'v4.20-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next

Thu, 20 Dec 2018 15:35:07 +0100

Merge tag 'v4.20-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-nextLinux 4.20-rc7Sync with upstream (which now contains fbdev-v4.20 changes) toprepare a base for fbdev-v4.21 changes. List of files: /linux/Documentation/ABI/testing/sysfs-class-net-dsa