#
8ebc80a2 |
| 17-Mar-2025 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.83' into for/openbmc/dev-6.6
This is the 6.6.83 stable release
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Merge tag 'v6.6.83' into for/openbmc/dev-6.6
This is the 6.6.83 stable release
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Revision tags: v6.6.83, v6.6.82, v6.6.81, v6.6.80 |
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#
17485318 |
| 24-Feb-2025 |
Wei Fang <wei.fang@nxp.com> |
net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC
[ Upstream commit a562d0c4a893eae3ea51d512c4d90ab858a6b7ec ]
Actually ENETC VFs do not support HWTSTAMP_TX_ONESTEP_SYNC because only ENETC PF
net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC
[ Upstream commit a562d0c4a893eae3ea51d512c4d90ab858a6b7ec ]
Actually ENETC VFs do not support HWTSTAMP_TX_ONESTEP_SYNC because only ENETC PF can access PMa_SINGLE_STEP registers. And there will be a crash if VFs are used to test one-step timestamp, the crash log as follows.
[ 129.110909] Unable to handle kernel paging request at virtual address 00000000000080c0 [ 129.287769] Call trace: [ 129.290219] enetc_port_mac_wr+0x30/0xec (P) [ 129.294504] enetc_start_xmit+0xda4/0xe74 [ 129.298525] enetc_xmit+0x70/0xec [ 129.301848] dev_hard_start_xmit+0x98/0x118
Fixes: 41514737ecaa ("enetc: add get_ts_info interface for ethtool") Cc: stable@vger.kernel.org Signed-off-by: Wei Fang <wei.fang@nxp.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://patch.msgid.link/20250224111251.1061098-5-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Revision tags: v6.6.79, v6.6.78, v6.6.77, v6.6.76, v6.6.75, v6.6.74, v6.6.73, v6.6.72, v6.6.71, v6.12.9, v6.6.70, v6.12.8, v6.6.69, v6.12.7, v6.6.68, v6.12.6, v6.6.67, v6.12.5, v6.6.66, v6.6.65, v6.12.4, v6.6.64, v6.12.3, v6.12.2, v6.6.63, v6.12.1, v6.12, v6.6.62, v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52 |
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#
f22f7ba8 |
| 12-Sep-2024 |
Martyn Welch <martyn.welch@collabora.com> |
net: enetc: Replace ifdef with IS_ENABLED
[ Upstream commit 9c699a8f3b273c62f7b364ff999e873501a1e834 ]
The enetc driver uses ifdefs when checking whether CONFIG_FSL_ENETC_PTP_CLOCK is enabled in a
net: enetc: Replace ifdef with IS_ENABLED
[ Upstream commit 9c699a8f3b273c62f7b364ff999e873501a1e834 ]
The enetc driver uses ifdefs when checking whether CONFIG_FSL_ENETC_PTP_CLOCK is enabled in a number of places. This works if the driver is built-in but fails if the driver is available as a kernel module. Replace the instances of ifdef with use of the IS_ENABLED macro, that will evaluate as true when this feature is built as a kernel module and follows the kernel's coding style.
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by: Martyn Welch <martyn.welch@collabora.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240912173742.484549-1-martyn.welch@collabora.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Stable-dep-of: a562d0c4a893 ("net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC") Signed-off-by: Sasha Levin <sashal@kernel.org>
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Revision tags: v6.6.51, v6.6.50, v6.6.49 |
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#
54e0f2d2 |
| 01-Sep-2024 |
Gal Pressman <gal@nvidia.com> |
net: enetc: Remove setting of RX software timestamp
[ Upstream commit 3dd261ca7f84c65af40f37825bf1cbb0cf3d5583 ]
The responsibility for reporting of RX software timestamp has moved to the core laye
net: enetc: Remove setting of RX software timestamp
[ Upstream commit 3dd261ca7f84c65af40f37825bf1cbb0cf3d5583 ]
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers.
Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Signed-off-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Wei Fang <wei.fang@nxp.com> Link: https://patch.msgid.link/20240901112803.212753-13-gal@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Stable-dep-of: a562d0c4a893 ("net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC") Signed-off-by: Sasha Levin <sashal@kernel.org>
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Revision tags: v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41, v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1 |
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#
1ac731c5 |
| 30-Aug-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.6 merge window.
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Revision tags: v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39 |
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#
50501936 |
| 17-Jul-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v6.4' into next
Sync up with mainline to bring in updates to shared infrastructure.
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Revision tags: v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35 |
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#
db6da59c |
| 15-Jun-2023 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-next into drm-misc-next-fixes
Backmerging to sync drm-misc-next-fixes with drm-misc-next.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Revision tags: v6.1.34 |
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#
03c60192 |
| 12-Jun-2023 |
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> |
Merge branch 'drm-next' of git://anongit.freedesktop.org/drm/drm into msm-next-lumag-base
Merge the drm-next tree to pick up the DRM DSC helpers (merged via drm-intel-next tree). MSM DSC v1.2 patche
Merge branch 'drm-next' of git://anongit.freedesktop.org/drm/drm into msm-next-lumag-base
Merge the drm-next tree to pick up the DRM DSC helpers (merged via drm-intel-next tree). MSM DSC v1.2 patches depend on these helpers.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Revision tags: v6.1.33 |
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#
5c680050 |
| 06-Jun-2023 |
Miquel Raynal <miquel.raynal@bootlin.com> |
Merge tag 'v6.4-rc4' into wpan-next/staging
Linux 6.4-rc4
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#
9ff17e6b |
| 05-Jun-2023 |
Tvrtko Ursulin <tvrtko.ursulin@intel.com> |
Merge drm/drm-next into drm-intel-gt-next
For conflict avoidance we need the following commit:
c9a9f18d3ad8 drm/i915/huc: use const struct bus_type pointers
Signed-off-by: Tvrtko Ursulin <tvrtko
Merge drm/drm-next into drm-intel-gt-next
For conflict avoidance we need the following commit:
c9a9f18d3ad8 drm/i915/huc: use const struct bus_type pointers
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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Revision tags: v6.1.32, v6.1.31, v6.1.30 |
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#
9c3a985f |
| 17-May-2023 |
Rodrigo Vivi <rodrigo.vivi@intel.com> |
Merge drm/drm-next into drm-intel-next
Backmerge to get some hwmon dependencies.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Revision tags: v6.1.29 |
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#
50282fd5 |
| 12-May-2023 |
Maxime Ripard <maxime@cerno.tech> |
Merge drm/drm-fixes into drm-misc-fixes
Let's bring 6.4-rc1 in drm-misc-fixes to start the new fix cycle.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Revision tags: v6.1.28 |
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#
ff32fcca |
| 09-May-2023 |
Maxime Ripard <maxime@cerno.tech> |
Merge drm/drm-next into drm-misc-next
Start the 6.5 release cycle.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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#
9a87ffc9 |
| 01-May-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.4 merge window.
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Revision tags: v6.1.27 |
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#
6e98b09d |
| 26-Apr-2023 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni: "Core:
- Introduce a config option to tweak MAX_SKB_FRAGS. In
Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni: "Core:
- Introduce a config option to tweak MAX_SKB_FRAGS. Increasing the default value allows for better BIG TCP performances
- Reduce compound page head access for zero-copy data transfers
- RPS/RFS improvements, avoiding unneeded NET_RX_SOFTIRQ when possible
- Threaded NAPI improvements, adding defer skb free support and unneeded softirq avoidance
- Address dst_entry reference count scalability issues, via false sharing avoidance and optimize refcount tracking
- Add lockless accesses annotation to sk_err[_soft]
- Optimize again the skb struct layout
- Extends the skb drop reasons to make it usable by multiple subsystems
- Better const qualifier awareness for socket casts
BPF:
- Add skb and XDP typed dynptrs which allow BPF programs for more ergonomic and less brittle iteration through data and variable-sized accesses
- Add a new BPF netfilter program type and minimal support to hook BPF programs to netfilter hooks such as prerouting or forward
- Add more precise memory usage reporting for all BPF map types
- Adds support for using {FOU,GUE} encap with an ipip device operating in collect_md mode and add a set of BPF kfuncs for controlling encap params
- Allow BPF programs to detect at load time whether a particular kfunc exists or not, and also add support for this in light skeleton
- Bigger batch of BPF verifier improvements to prepare for upcoming BPF open-coded iterators allowing for less restrictive looping capabilities
- Rework RCU enforcement in the verifier, add kptr_rcu and enforce BPF programs to NULL-check before passing such pointers into kfunc
- Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and in local storage maps
- Enable RCU semantics for task BPF kptrs and allow referenced kptr tasks to be stored in BPF maps
- Add support for refcounted local kptrs to the verifier for allowing shared ownership, useful for adding a node to both the BPF list and rbtree
- Add BPF verifier support for ST instructions in convert_ctx_access() which will help new -mcpu=v4 clang flag to start emitting them
- Add ARM32 USDT support to libbpf
- Improve bpftool's visual program dump which produces the control flow graph in a DOT format by adding C source inline annotations
Protocols:
- IPv4: Allow adding to IPv4 address a 'protocol' tag. Such value indicates the provenance of the IP address
- IPv6: optimize route lookup, dropping unneeded R/W lock acquisition
- Add the handshake upcall mechanism, allowing the user-space to implement generic TLS handshake on kernel's behalf
- Bridge: support per-{Port, VLAN} neighbor suppression, increasing resilience to nodes failures
- SCTP: add support for Fair Capacity and Weighted Fair Queueing schedulers
- MPTCP: delay first subflow allocation up to its first usage. This will allow for later better LSM interaction
- xfrm: Remove inner/outer modes from input/output path. These are not needed anymore
- WiFi: - reduced neighbor report (RNR) handling for AP mode - HW timestamping support - support for randomized auth/deauth TA for PASN privacy - per-link debugfs for multi-link - TC offload support for mac80211 drivers - mac80211 mesh fast-xmit and fast-rx support - enable Wi-Fi 7 (EHT) mesh support
Netfilter:
- Add nf_tables 'brouting' support, to force a packet to be routed instead of being bridged
- Update bridge netfilter and ovs conntrack helpers to handle IPv6 Jumbo packets properly, i.e. fetch the packet length from hop-by-hop extension header. This is needed for BIT TCP support
- The iptables 32bit compat interface isn't compiled in by default anymore
- Move ip(6)tables builtin icmp matches to the udptcp one. This has the advantage that icmp/icmpv6 match doesn't load the iptables/ip6tables modules anymore when iptables-nft is used
- Extended netlink error report for netdevice in flowtables and netdev/chains. Allow for incrementally add/delete devices to netdev basechain. Allow to create netdev chain without device
Driver API:
- Remove redundant Device Control Error Reporting Enable, as PCI core has already error reporting enabled at enumeration time
- Move Multicast DB netlink handlers to core, allowing devices other then bridge to use them
- Allow the page_pool to directly recycle the pages from safely localized NAPI
- Implement lockless TX queue stop/wake combo macros, allowing for further code de-duplication and sanitization
- Add YNL support for user headers and struct attrs
- Add partial YNL specification for devlink
- Add partial YNL specification for ethtool
- Add tc-mqprio and tc-taprio support for preemptible traffic classes
- Add tx push buf len param to ethtool, specifies the maximum number of bytes of a transmitted packet a driver can push directly to the underlying device
- Add basic LED support for switch/phy
- Add NAPI documentation, stop relaying on external links
- Convert dsa_master_ioctl() to netdev notifier. This is a preparatory work to make the hardware timestamping layer selectable by user space
- Add transceiver support and improve the error messages for CAN-FD controllers
New hardware / drivers:
- Ethernet: - AMD/Pensando core device support - MediaTek MT7981 SoC - MediaTek MT7988 SoC - Broadcom BCM53134 embedded switch - Texas Instruments CPSW9G ethernet switch - Qualcomm EMAC3 DWMAC ethernet - StarFive JH7110 SoC - NXP CBTX ethernet PHY
- WiFi: - Apple M1 Pro/Max devices - RealTek rtl8710bu/rtl8188gu - RealTek rtl8822bs, rtl8822cs and rtl8821cs SDIO chipset
- Bluetooth: - Realtek RTL8821CS, RTL8851B, RTL8852BS - Mediatek MT7663, MT7922 - NXP w8997 - Actions Semi ATS2851 - QTI WCN6855 - Marvell 88W8997
- Can: - STMicroelectronics bxcan stm32f429
Drivers:
- Ethernet NICs: - Intel (1G, icg): - add tracking and reporting of QBV config errors - add support for configuring max SDU for each Tx queue - Intel (100G, ice): - refactor mailbox overflow detection to support Scalable IOV - GNSS interface optimization - Intel (i40e): - support XDP multi-buffer - nVidia/Mellanox: - add the support for linux bridge multicast offload - enable TC offload for egress and engress MACVLAN over bond - add support for VxLAN GBP encap/decap flows offload - extend packet offload to fully support libreswan - support tunnel mode in mlx5 IPsec packet offload - extend XDP multi-buffer support - support MACsec VLAN offload - add support for dynamic msix vectors allocation - drop RX page_cache and fully use page_pool - implement thermal zone to report NIC temperature - Netronome/Corigine: - add support for multi-zone conntrack offload - Solarflare/Xilinx: - support offloading TC VLAN push/pop actions to the MAE - support TC decap rules - support unicast PTP
- Other NICs: - Broadcom (bnxt): enforce software based freq adjustments only on shared PHC NIC - RealTek (r8169): refactor to addess ASPM issues during NAPI poll - Micrel (lan8841): add support for PTP_PF_PEROUT - Cadence (macb): enable PTP unicast - Engleder (tsnep): add XDP socket zero-copy support - virtio-net: implement exact header length guest feature - veth: add page_pool support for page recycling - vxlan: add MDB data path support - gve: add XDP support for GQI-QPL format - geneve: accept every ethertype - macvlan: allow some packets to bypass broadcast queue - mana: add support for jumbo frame
- Ethernet high-speed switches: - Microchip (sparx5): Add support for TC flower templates
- Ethernet embedded switches: - Broadcom (b54): - configure 6318 and 63268 RGMII ports - Marvell (mv88e6xxx): - faster C45 bus scan - Microchip: - lan966x: - add support for IS1 VCAP - better TX/RX from/to CPU performances - ksz9477: add ETS Qdisc support - ksz8: enhance static MAC table operations and error handling - sama7g5: add PTP capability - NXP (ocelot): - add support for external ports - add support for preemptible traffic classes - Texas Instruments: - add CPSWxG SGMII support for J7200 and J721E
- Intel WiFi (iwlwifi): - preparation for Wi-Fi 7 EHT and multi-link support - EHT (Wi-Fi 7) sniffer support - hardware timestamping support for some devices/firwmares - TX beacon protection on newer hardware
- Qualcomm 802.11ax WiFi (ath11k): - MU-MIMO parameters support - ack signal support for management packets
- RealTek WiFi (rtw88): - SDIO bus support - better support for some SDIO devices (e.g. MAC address from efuse)
- RealTek WiFi (rtw89): - HW scan support for 8852b - better support for 6 GHz scanning - support for various newer firmware APIs - framework firmware backwards compatibility
- MediaTek WiFi (mt76): - P2P support - mesh A-MSDU support - EHT (Wi-Fi 7) support - coredump support"
* tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2078 commits) net: phy: hide the PHYLIB_LEDS knob net: phy: marvell-88x2222: remove unnecessary (void*) conversions tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. net: amd: Fix link leak when verifying config failed net: phy: marvell: Fix inconsistent indenting in led_blink_set lan966x: Don't use xdp_frame when action is XDP_TX tsnep: Add XDP socket zero-copy TX support tsnep: Add XDP socket zero-copy RX support tsnep: Move skb receive action to separate function tsnep: Add functions for queue enable/disable tsnep: Rework TX/RX queue initialization tsnep: Replace modulo operation with mask net: phy: dp83867: Add led_brightness_set support net: phy: Fix reading LED reg property drivers: nfc: nfcsim: remove return value check of `dev_dir` net: phy: dp83867: Remove unnecessary (void*) conversions net: ethtool: coalesce: try to make user settings stick twice net: mana: Check if netdev/napi_alloc_frag returns single page net: mana: Rename mana_refill_rxoob and remove some empty lines net: veth: add page_pool stats ...
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#
cdc780f0 |
| 26-Apr-2023 |
Jiri Kosina <jkosina@suse.cz> |
Merge branch 'for-6.4/amd-sfh' into for-linus
- assorted functional fixes for amd-sfh driver (Basavaraj Natikar)
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#
4f382a79 |
| 26-Apr-2023 |
Paolo Bonzini <pbonzini@redhat.com> |
Merge tag 'kvmarm-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for 6.4
- Numerous fixes for the pathological lock inversion issue that plagued K
Merge tag 'kvmarm-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for 6.4
- Numerous fixes for the pathological lock inversion issue that plagued KVM/arm64 since... forever.
- New framework allowing SMCCC-compliant hypercalls to be forwarded to userspace, hopefully paving the way for some more features being moved to VMMs rather than be implemented in the kernel.
- Large rework of the timer code to allow a VM-wide offset to be applied to both virtual and physical counters as well as a per-timer, per-vcpu offset that complements the global one. This last part allows the NV timer code to be implemented on top.
- A small set of fixes to make sure that we don't change anything affecting the EL1&0 translation regime just after having having taken an exception to EL2 until we have executed a DSB. This ensures that speculative walks started in EL1&0 have completed.
- The usual selftest fixes and improvements.
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Revision tags: v6.1.26 |
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#
38c87827 |
| 24-Apr-2023 |
Wolfram Sang <wsa@kernel.org> |
Merge branch 'i2c/for-current' into i2c/for-mergewindow
This should have been in 6.3, but sadly I missed it.
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Revision tags: v6.3 |
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#
5a4d3b38 |
| 21-Apr-2023 |
Peter Zijlstra <peterz@infradead.org> |
Merge branch 'v6.3-rc7'
Sync with the urgent patches; in particular:
a53ce18cacb4 ("sched/fair: Sanitize vruntime of entity being migrated")
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
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#
b7b871f5 |
| 20-Apr-2023 |
Jakub Kicinski <kuba@kernel.org> |
Merge branch 'ethtool-mm-api-consolidation'
Vladimir Oltean says:
==================== ethtool mm API consolidation
This series consolidates the behavior of the 2 drivers that implement the ethtoo
Merge branch 'ethtool-mm-api-consolidation'
Vladimir Oltean says:
==================== ethtool mm API consolidation
This series consolidates the behavior of the 2 drivers that implement the ethtool MAC Merge layer by making NXP ENETC commit its preemptible traffic classes to hardware only when MM TX is active (same as Ocelot).
Then, after resolving an issue with the ENETC driver, it restricts user space from entering 2 states which don't make sense:
- pmac-enabled off tx-enabled on verify-enabled * - pmac-enabled * tx-enabled off verify-enabled on
Then, it introduces a selftest (ethtool_mm.sh) which puts everything together and tests all valid configurations known to me.
This is simultaneously the v2 of "[PATCH net-next 0/2] ethtool mm API improvements": https://lore.kernel.org/netdev/20230415173454.3970647-1-vladimir.oltean@nxp.com/ which had caused some problems to openlldp. Those were solved in the meantime, see: https://github.com/intel/openlldp/commit/11171b474f6f3cbccac5d608b7f26b32ff72c651
and of "[RFC PATCH net-next] selftests: forwarding: add a test for MAC Merge layer": https://lore.kernel.org/netdev/20230210221243.228932-1-vladimir.oltean@nxp.com/ ====================
Link: https://lore.kernel.org/r/20230418111459.811553-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v6.1.25 |
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16a2c763 |
| 18-Apr-2023 |
Vladimir Oltean <vladimir.oltean@nxp.com> |
net: enetc: include MAC Merge / FP registers in register dump
These have been useful in debugging various problems related to frame preemption, so make them available through ethtool --register-dump
net: enetc: include MAC Merge / FP registers in register dump
These have been useful in debugging various problems related to frame preemption, so make them available through ethtool --register-dump for later too.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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82714539 |
| 18-Apr-2023 |
Vladimir Oltean <vladimir.oltean@nxp.com> |
net: enetc: only commit preemptible TCs to hardware when MM TX is active
This was left as TODO in commit 01e23b2b3bad ("net: enetc: add support for preemptible traffic classes") since it's relativel
net: enetc: only commit preemptible TCs to hardware when MM TX is active
This was left as TODO in commit 01e23b2b3bad ("net: enetc: add support for preemptible traffic classes") since it's relatively complicated.
Where this makes a difference is with a configuration as follows:
ethtool --set-mm eno0 pmac-enabled on tx-enabled on verify-enabled on
Preemptible packets should only be sent when the MAC Merge TX direction becomes active (i.o.w. when the verification process succeeds, aka when the link partner confirms it can process preemptible traffic). But the tc qdisc with the preemptible traffic classes is offloaded completely asynchronously w.r.t. the MM becoming active.
The ENETC manual does suggest that this should be handled in the driver: "On startup, software should wait for the verification process to complete (MMCSR[VSTS]=011) before initiating traffic".
Adding the necessary logic allows future selftests to uphold the claim that an inactive or disabled MAC Merge layer should never send data packets through the pMAC.
This change moves enetc_set_ptcfpr() from enetc.c to enetc_ethtool.c, where its only caller is now - enetc_mm_commit_preemptible_tcs().
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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153b5b1d |
| 18-Apr-2023 |
Vladimir Oltean <vladimir.oltean@nxp.com> |
net: enetc: report mm tx-active based on tx-enabled and verify-status
The MMCSR register contains 2 fields with overlapping meaning:
- LPA (Local preemption active): This read-only status bit indic
net: enetc: report mm tx-active based on tx-enabled and verify-status
The MMCSR register contains 2 fields with overlapping meaning:
- LPA (Local preemption active): This read-only status bit indicates whether preemption is active for this port. This bit will be set if preemption is both enabled and has completed the verification process. - TXSTS (Merge status): This read-only status field provides the state of the MAC Merge sublayer transmit status as defined in IEEE Std 802.3-2018 Clause 99. 00 Transmit preemption is inactive 01 Transmit preemption is active 10 Reserved 11 Reserved
However none of these 2 fields offer reliable reporting to software.
When connecting ENETC to a link partner which is not capable of Frame Preemption, the expectation is that ENETC's verification should fail (VSTS=4) and its MM TX direction should be inactive (LPA=0, TXSTS=00) even though the MM TX is enabled (ME=1). But surprise, the LPA bit of MMCSR stays set even if VSTS=4 and ME=1.
OTOH, the TXSTS field has the opposite problem. I cannot get its value to change from 0, even when connecting to a link partner capable of frame preemption, which does respond to its verification frames (ME=1 and VSTS=3, "SUCCEEDED").
The only option with such buggy hardware seems to be to reimplement the formula for calculating tx-active in software, which is for tx-enabled to be true, and for the verify-status to be either SUCCEEDED, or DISABLED.
Without reliable tx-active reporting, we have no good indication when to commit the preemptible traffic classes to hardware, which makes it possible (but not desirable) to send preemptible traffic to a link partner incapable of receiving it. However, currently we do not have the logic to wait for TX to be active yet, so the impact is limited.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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59be75db |
| 18-Apr-2023 |
Vladimir Oltean <vladimir.oltean@nxp.com> |
net: enetc: fix MAC Merge layer remaining enabled until a link down event
Current enetc_set_mm() is designed to set the priv->active_offloads bit ENETC_F_QBU for enetc_mm_link_state_update() to act
net: enetc: fix MAC Merge layer remaining enabled until a link down event
Current enetc_set_mm() is designed to set the priv->active_offloads bit ENETC_F_QBU for enetc_mm_link_state_update() to act on, but if the link is already up, it modifies the ENETC_MMCSR_ME ("Merge Enable") bit directly.
The problem is that it only *sets* ENETC_MMCSR_ME if the link is up, it doesn't *clear* it if needed. So subsequent enetc_get_mm() calls still see tx-enabled as true, up until a link down event, which is when enetc_mm_link_state_update() will get called.
This is not a functional issue as far as I can assess. It has only come up because I'd like to uphold a simple API rule in core ethtool code: the pMAC cannot be disabled if TX is going to be enabled. Currently, the fact that TX remains enabled for longer than expected (after the enetc_set_mm() call that disables it) is going to violate that rule, which is how it was caught.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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800e68c4 |
| 13-Apr-2023 |
Jakub Kicinski <kuba@kernel.org> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:
tools/testing/selftests/net/config 62199e3f1658 ("selftests: net: Add VXLAN MDB test") 3a0385be133e ("selftests: add th
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:
tools/testing/selftests/net/config 62199e3f1658 ("selftests: net: Add VXLAN MDB test") 3a0385be133e ("selftests: add the missing CONFIG_IP_SCTP in net config")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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