Merge tag 'net-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "The most significant set of changes is the per netns RTNL. The new
  behavior is disabled by default, regression risk should be contained.

  Notably the new config knob PTP_1588_CLOCK_VMCLOCK will inherit its
  default value from PTP_1588_CLOCK_KVM, as the first is intended to be
  a more reliable replacement for the latter.

  Core:

   - Started a very large, in-progress, effort to make the RTNL lock
     scope per network-namespace, thus reducing the lock contention
     significantly in the containerized use-case, comprising:
       - RCU-ified some relevant slices of the FIB control path
       - introduce basic per netns locking helpers
       - namespacified the IPv4 address hash table
       - remove rtnl_register{,_module}() in favour of
         rtnl_register_many()
       - refactor rtnl_{new,del,set}link() moving as much validation as
         possible out of RTNL lock
       - convert all phonet doit() and dumpit() handlers to RCU
       - convert IPv4 addresses manipulation to per-netns RTNL
       - convert virtual interface creation to per-netns RTNL
     the per-netns lock infrastructure is guarded by the
     CONFIG_DEBUG_NET_SMALL_RTNL knob, disabled by default ad interim.

   - Introduce NAPI suspension, to efficiently switching between busy
     polling (NAPI processing suspended) and normal processing.

   - Migrate the IPv4 routing input, output and control path from direct
     ToS usage to DSCP macros. This is a work in progress to make ECN
     handling consistent and reliable.

   - Add drop reasons support to the IPv4 rotue input path, allowing
     better introspection in case of packets drop.

   - Make FIB seqnum lockless, dropping RTNL protection for read access.

   - Make inet{,v6} addresses hashing less predicable.

   - Allow providing timestamp OPT_ID via cmsg, to correlate TX packets
     and timestamps

  Things we sprinkled into general kernel code:

   - Add small file operations for debugfs, to reduce the struct ops
     size.

   - Refactoring and optimization for the implementation of page_frag
     API, This is a preparatory work to consolidate the page_frag
     implementation.

  Netfilter:

   - Optimize set element transactions to reduce memory consumption

   - Extended netlink error reporting for attribute parser failure.

   - Make legacy xtables configs user selectable, giving users the
     option to configure iptables without enabling any other config.

   - Address a lot of false-positive RCU issues, pointed by recent CI
     improvements.

  BPF:

   - Put xsk sockets on a struct diet and add various cleanups. Overall,
     this helps to bump performance by 12% for some workloads.

   - Extend BPF selftests to increase coverage of XDP features in
     combination with BPF cpumap.

   - Optimize and homogenize bpf_csum_diff helper for all archs and also
     add a batch of new BPF selftests for it.

   - Extend netkit with an option to delegate skb->{mark,priority}
     scrubbing to its BPF program.

   - Make the bpf_get_netns_cookie() helper available also to tc(x) BPF
     programs.

  Protocols:

   - Introduces 4-tuple hash for connected udp sockets, speeding-up
     significantly connected sockets lookup.

   - Add a fastpath for some TCP timers that usually expires after
     close, the socket lock contention.

   - Add inbound and outbound xfrm state caches to speed up state
     lookups.

   - Avoid sending MPTCP advertisements on stale subflows, reducing
     risks on loosing them.

   - Make neighbours table flushing more scalable, maintaining per
     device neigh lists.

  Driver API:

   - Introduce a unified interface to configure transmission H/W
     shaping, and expose it to user-space via generic-netlink.

   - Add support for per-NAPI config via netlink. This makes napi
     configuration persistent across queues removal and re-creation.
     Requires driver updates, currently supported drivers are:
     nVidia/Mellanox mlx4 and mlx5, Broadcom brcm and Intel ice.

   - Add ethtool support for writing SFP / PHY firmware blocks.

   - Track RSS context allocation from ethtool core.

   - Implement support for mirroring to DSA CPU port, via TC mirror
     offload.

   - Consolidate FDB updates notification, to avoid duplicates on
     device-specific entries.

   - Expose DPLL clock quality level to the user-space.

   - Support master-slave PHY config via device tree.

  Tests and tooling:

   - forwarding: introduce deferred commands, to simplify the cleanup
     phase

  Drivers:

   - Updated several drivers - Amazon vNic, Google vNic, Microsoft vNic,
     Intel e1000e and Broadcom Tigon3 - to use netdev-genl to link the
     IRQs and queues to NAPI IDs, allowing busy polling and better
     introspection.

   - Ethernet high-speed NICs:
      - nVidia/Mellanox:
         - mlx5:
           - a large refactor to implement support for cross E-Switch
             scheduling
           - refactor H/W conter management to let it scale better
           - H/W GRO cleanups
      - Intel (100G, ice)::
         - add support for ethtool reset
         - implement support for per TX queue H/W shaping
      - AMD/Solarflare:
         - implement per device queue stats support
      - Broadcom (bnxt):
         - improve wildcard l4proto on IPv4/IPv6 ntuple rules
      - Marvell Octeon:
         - Add representor support for each Resource Virtualization Unit
           (RVU) device.
      - Hisilicon:
         - add support for the BMC Gigabit Ethernet
      - IBM (EMAC):
         - driver cleanup and modernization
      - Cisco (VIC):
         - raise the queues number limit to 256

   - Ethernet virtual:
      - Google vNIC:
         - implement page pool support
      - macsec:
         - inherit lower device's features and TSO limits when
           offloading
      - virtio_net:
         - enable premapped mode by default
         - support for XDP socket(AF_XDP) zerocopy TX
      - wireguard:
         - set the TSO max size to be GSO_MAX_SIZE, to aggregate larger
           packets.

   - Ethernet NICs embedded and virtual:
      - Broadcom ASP:
         - enable software timestamping
      - Freescale:
         - add enetc4 PF driver
      - MediaTek: Airoha SoC:
         - implement BQL support
      - RealTek r8169:
         - enable TSO by default on r8168/r8125
         - implement extended ethtool stats
      - Renesas AVB:
         - enable TX checksum offload
      - Synopsys (stmmac):
         - support header splitting for vlan tagged packets
         - move common code for DWMAC4 and DWXGMAC into a separate FPE
           module.
         - add dwmac driver support for T-HEAD TH1520 SoC
      - Synopsys (xpcs):
         - driver refactor and cleanup
      - TI:
         - icssg_prueth: add VLAN offload support
      - Xilinx emaclite:
         - add clock support

   - Ethernet switches:
      - Microchip:
         - implement support for the lan969x Ethernet switch family
         - add LAN9646 switch support to KSZ DSA driver

   - Ethernet PHYs:
      - Marvel: 88q2x: enable auto negotiation
      - Microchip: add support for LAN865X Rev B1 and LAN867X Rev C1/C2

   - PTP:
      - Add support for the Amazon virtual clock device
      - Add PtP driver for s390 clocks

   - WiFi:
      - mac80211
         - EHT 1024 aggregation size for transmissions
         - new operation to indicate that a new interface is to be added
         - support radio separation of multi-band devices
         - move wireless extension spy implementation to libiw
      - Broadcom:
         - brcmfmac: optional LPO clock support
      - Microchip:
         - add support for Atmel WILC3000
      - Qualcomm (ath12k):
         - firmware coredump collection support
         - add debugfs support for a multitude of statistics
      - Qualcomm (ath5k):
         -  Arcadyan ARV45XX AR2417 & Gigaset SX76[23] AR241[34]A support
      - Realtek:
         - rtw88: 8821au and 8812au USB adapters support
         - rtw89: add thermal protection
         - rtw89: fine tune BT-coexsitence to improve user experience
         - rtw89: firmware secure boot for WiFi 6 chip

   - Bluetooth
      - add Qualcomm WCN785x support for ids Foxconn 0xe0fc/0xe0f3 and
        0x13d3:0x3623
      - add Realtek RTL8852BE support for id Foxconn 0xe123
      - add MediaTek MT7920 support for wireless module ids
      - btintel_pcie: add handshake between driver and firmware
      - btintel_pcie: add recovery mechanism
      - btnxpuart: add GPIO support to power save feature"

* tag 'net-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1475 commits)
  mm: page_frag: fix a compile error when kernel is not compiled
  Documentation: tipc: fix formatting issue in tipc.rst
  selftests: nic_performance: Add selftest for performance of NIC driver
  selftests: nic_link_layer: Add selftest case for speed and duplex states
  selftests: nic_link_layer: Add link layer selftest for NIC driver
  bnxt_en: Add FW trace coredump segments to the coredump
  bnxt_en: Add a new ethtool -W dump flag
  bnxt_en: Add 2 parameters to bnxt_fill_coredump_seg_hdr()
  bnxt_en: Add functions to copy host context memory
  bnxt_en: Do not free FW log context memory
  bnxt_en: Manage the FW trace context memory
  bnxt_en: Allocate backing store memory for FW trace logs
  bnxt_en: Add a 'force' parameter to bnxt_free_ctx_mem()
  bnxt_en: Refactor bnxt_free_ctx_mem()
  bnxt_en: Add mem_valid bit to struct bnxt_ctx_mem_type
  bnxt_en: Update firmware interface spec to 1.10.3.85
  selftests/bpf: Add some tests with sockmap SK_PASS
  bpf: fix recursive lock when verdict program return SK_PASS
  wireguard: device: support big tcp GSO
  wireguard: selftests: load nf_conntrack if not present
  ...

Author: torvalds

Documentation/admin-guide/kernel-parameters.txt

@@ -1553,6 +1553,7 @@
 	failslab=
 	fail_usercopy=
 	fail_page_alloc=
+	fail_skb_realloc=
 	fail_make_request=[KNL]
 			General fault injection mechanism.
 			Format: <interval>,<probability>,<space>,<times>

Documentation/core-api/packing.rst

@@ -151,6 +151,77 @@ the more significant 4-byte word.
 We always think of our offsets as if there were no quirk, and we translate
 them afterwards, before accessing the memory region.
 
+Note on buffer lengths not multiple of 4
+----------------------------------------
+
+To deal with memory layout quirks where groups of 4 bytes are laid out "little
+endian" relative to each other, but "big endian" within the group itself, the
+concept of groups of 4 bytes is intrinsic to the packing API (not to be
+confused with the memory access, which is performed byte by byte, though).
+
+With buffer lengths not multiple of 4, this means one group will be incomplete.
+Depending on the quirks, this may lead to discontinuities in the bit fields
+accessible through the buffer. The packing API assumes discontinuities were not
+the intention of the memory layout, so it avoids them by effectively logically
+shortening the most significant group of 4 octets to the number of octets
+actually available.
+
+Example with a 31 byte sized buffer given below. Physical buffer offsets are
+implicit, and increase from left to right within a group, and from top to
+bottom within a column.
+
+No quirks:
+
+::
+
+            31         29         28        |   Group 7 (most significant)
+ 27         26         25         24        |   Group 6
+ 23         22         21         20        |   Group 5
+ 19         18         17         16        |   Group 4
+ 15         14         13         12        |   Group 3
+ 11         10          9          8        |   Group 2
+  7          6          5          4        |   Group 1
+  3          2          1          0        |   Group 0 (least significant)
+
+QUIRK_LSW32_IS_FIRST:
+
+::
+
+  3          2          1          0        |   Group 0 (least significant)
+  7          6          5          4        |   Group 1
+ 11         10          9          8        |   Group 2
+ 15         14         13         12        |   Group 3
+ 19         18         17         16        |   Group 4
+ 23         22         21         20        |   Group 5
+ 27         26         25         24        |   Group 6
+ 30         29         28                   |   Group 7 (most significant)
+
+QUIRK_LITTLE_ENDIAN:
+
+::
+
+            30         28         29        |   Group 7 (most significant)
+ 24         25         26         27        |   Group 6
+ 20         21         22         23        |   Group 5
+ 16         17         18         19        |   Group 4
+ 12         13         14         15        |   Group 3
+  8          9         10         11        |   Group 2
+  4          5          6          7        |   Group 1
+  0          1          2          3        |   Group 0 (least significant)
+
+QUIRK_LITTLE_ENDIAN | QUIRK_LSW32_IS_FIRST:
+
+::
+
+  0          1          2          3        |   Group 0 (least significant)
+  4          5          6          7        |   Group 1
+  8          9         10         11        |   Group 2
+ 12         13         14         15        |   Group 3
+ 16         17         18         19        |   Group 4
+ 20         21         22         23        |   Group 5
+ 24         25         26         27        |   Group 6
+ 28         29         30                   |   Group 7 (most significant)
+
 Intended use
 ------------
 

Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml

@@ -34,17 +34,25 @@ properties:
   firmware-name:
     maxItems: 1
 
+  device-wakeup-gpios:
+    maxItems: 1
+    description:
+      Host-To-Chip power save mechanism is driven by this GPIO
+      connected to BT_WAKE_IN pin of the NXP chipset.
+
 required:
   - compatible
 
 additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/gpio/gpio.h>
     serial {
         bluetooth {
             compatible = "nxp,88w8987-bt";
             fw-init-baudrate = <3000000>;
             firmware-name = "uartuart8987_bt_v0.bin";
+            device-wakeup-gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;
         };
     };

Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml

@@ -34,6 +34,7 @@ properties:
       - microchip,ksz9563
       - microchip,ksz8563
       - microchip,ksz8567
+      - microchip,lan9646
 
   reset-gpios:
     description:
@@ -81,6 +82,26 @@ properties:
   interrupts:
     maxItems: 1
 
+  mdio:
+    $ref: /schemas/net/mdio.yaml#
+    unevaluatedProperties: false
+    properties:
+      mdio-parent-bus:
+        $ref: /schemas/types.yaml#/definitions/phandle
+        description:
+          Phandle pointing to the MDIO bus controller connected to the
+          secondary MDIO interface. This property should be used when
+          the internal MDIO bus is accessed via a secondary MDIO
+          interface rather than the primary management interface.
+
+    patternProperties:
+      "^ethernet-phy@[0-9a-f]$":
+        type: object
+        $ref: /schemas/net/ethernet-phy.yaml#
+        unevaluatedProperties: false
+        description:
+          Integrated PHY node
+
 required:
   - compatible
   - reg
@@ -138,7 +159,6 @@ examples:
 
         pinctrl-0 = <&pinctrl_spi_ksz>;
         cs-gpios = <&pioC 25 0>;
-        id = <1>;
 
         ksz9477: switch@0 {
             compatible = "microchip,ksz9477";

Documentation/devicetree/bindings/net/dsa/realtek.yaml

@@ -147,7 +147,7 @@ examples:
     #include <dt-bindings/interrupt-controller/irq.h>
 
     platform {
-            switch {
+            ethernet-switch {
                     compatible = "realtek,rtl8366rb";
                     /* 22 = MDIO (has input reads), 21 = MDC (clock, output only) */
                     mdc-gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
@@ -163,35 +163,35 @@ examples:
                             #interrupt-cells = <1>;
                     };
 
-                    ports {
+                    ethernet-ports {
                             #address-cells = <1>;
                             #size-cells = <0>;
-                            port@0 {
+                            ethernet-port@0 {
                                     reg = <0>;
                                     label = "lan0";
                                     phy-handle = <&phy0>;
                             };
-                            port@1 {
+                            ethernet-port@1 {
                                     reg = <1>;
                                     label = "lan1";
                                     phy-handle = <&phy1>;
                             };
-                            port@2 {
+                            ethernet-port@2 {
                                     reg = <2>;
                                     label = "lan2";
                                     phy-handle = <&phy2>;
                             };
-                            port@3 {
+                            ethernet-port@3 {
                                     reg = <3>;
                                     label = "lan3";
                                     phy-handle = <&phy3>;
                             };
-                            port@4 {
+                            ethernet-port@4 {
                                     reg = <4>;
                                     label = "wan";
                                     phy-handle = <&phy4>;
                             };
-                            port@5 {
+                            ethernet-port@5 {
                                     reg = <5>;
                                     ethernet = <&gmac0>;
                                     phy-mode = "rgmii";
@@ -241,7 +241,7 @@ examples:
     #include <dt-bindings/interrupt-controller/irq.h>
 
     platform {
-            switch {
+            ethernet-switch {
                     compatible = "realtek,rtl8365mb";
                     mdc-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>;
                     mdio-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
@@ -255,30 +255,30 @@ examples:
                             #interrupt-cells = <1>;
                     };
 
-                    ports {
+                    ethernet-ports {
                             #address-cells = <1>;
                             #size-cells = <0>;
-                            port@0 {
+                            ethernet-port@0 {
                                     reg = <0>;
                                     label = "swp0";
                                     phy-handle = <&ethphy0>;
                             };
-                            port@1 {
+                            ethernet-port@1 {
                                     reg = <1>;
                                     label = "swp1";
                                     phy-handle = <&ethphy1>;
                             };
-                            port@2 {
+                            ethernet-port@2 {
                                     reg = <2>;
                                     label = "swp2";
                                     phy-handle = <&ethphy2>;
                             };
-                            port@3 {
+                            ethernet-port@3 {
                                     reg = <3>;
                                     label = "swp3";
                                     phy-handle = <&ethphy3>;
                             };
-                            port@6 {
+                            ethernet-port@6 {
                                     reg = <6>;
                                     ethernet = <&fec1>;
                                     phy-mode = "rgmii";
@@ -330,7 +330,7 @@ examples:
             #address-cells = <1>;
             #size-cells = <0>;
 
-            switch@29 {
+            ethernet-switch@29 {
                     compatible = "realtek,rtl8365mb";
                     reg = <29>;
 
@@ -344,36 +344,36 @@ examples:
                             #interrupt-cells = <1>;
                     };
 
-                    ports {
+                    ethernet-ports {
                             #address-cells = <1>;
                             #size-cells = <0>;
 
-                            port@0 {
+                            ethernet-port@0 {
                                     reg = <0>;
                                     label = "lan4";
                             };
 
-                            port@1 {
+                            ethernet-port@1 {
                                     reg = <1>;
                                     label = "lan3";
                             };
 
-                            port@2 {
+                            ethernet-port@2 {
                                     reg = <2>;
                                     label = "lan2";
                             };
 
-                            port@3 {
+                            ethernet-port@3 {
                                     reg = <3>;
                                     label = "lan1";
                             };
 
-                            port@4 {
+                            ethernet-port@4 {
                                     reg = <4>;
                                     label = "wan";
                             };
 
-                            port@7 {
+                            ethernet-port@7 {
                                     reg = <7>;
                                     ethernet = <&ethernet>;
                                     phy-mode = "rgmii";

Documentation/devicetree/bindings/net/ethernet-phy.yaml

@@ -158,6 +158,27 @@ properties:
       Mark the corresponding energy efficient ethernet mode as
       broken and request the ethernet to stop advertising it.
 
+  timing-role:
+    $ref: /schemas/types.yaml#/definitions/string
+    enum:
+      - forced-master
+      - forced-slave
+      - preferred-master
+      - preferred-slave
+    description: |
+      Specifies the timing role of the PHY in the network link. This property is
+      required for setups where the role must be explicitly assigned via the
+      device tree due to limitations in hardware strapping or incorrect strap
+      configurations.
+      It is applicable to Single Pair Ethernet (1000/100/10Base-T1) and other
+      PHY types, including 1000Base-T, where it controls whether the PHY should
+      be a master (clock source) or a slave (clock receiver).
+
+      - 'forced-master': The PHY is forced to operate as a master.
+      - 'forced-slave': The PHY is forced to operate as a slave.
+      - 'preferred-master': Prefer the PHY to be master but allow negotiation.
+      - 'preferred-slave': Prefer the PHY to be slave but allow negotiation.
+
   pses:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     maxItems: 1

Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml

@@ -20,10 +20,13 @@ maintainers:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - pci1957,ee01
-      - const: fsl,enetc-mdio
+    oneOf:
+      - items:
+          - enum:
+              - pci1957,ee01
+          - const: fsl,enetc-mdio
+      - items:
+          - const: pci1131,ee00
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/net/fsl,enetc.yaml

@@ -20,14 +20,25 @@ maintainers:
 
 properties:
   compatible:
-    items:
+    oneOf:
+      - items:
+          - enum:
+              - pci1957,e100
+          - const: fsl,enetc
       - enum:
-          - pci1957,e100
-      - const: fsl,enetc
+          - pci1131,e101
 
   reg:
     maxItems: 1
 
+  clocks:
+    items:
+      - description: MAC transmit/receive reference clock
+
+  clock-names:
+    items:
+      - const: ref
+
   mdio:
     $ref: mdio.yaml
     unevaluatedProperties: false
@@ -40,6 +51,17 @@ required:
 allOf:
   - $ref: /schemas/pci/pci-device.yaml
   - $ref: ethernet-controller.yaml
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - pci1131,e101
+    then:
+      properties:
+        clocks: false
+        clock-names: false
 
 unevaluatedProperties: false