Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Replace busylock at the Tx queuing layer with a lockless list.

     Resulting in a 300% (4x) improvement on heavy TX workloads, sending
     twice the number of packets per second, for half the cpu cycles.

   - Allow constantly busy flows to migrate to a more suitable CPU/NIC
     queue.

     Normally we perform queue re-selection when flow comes out of idle,
     but under extreme circumstances the flows may be constantly busy.

     Add sysctl to allow periodic rehashing even if it'd risk packet
     reordering.

   - Optimize the NAPI skb cache, make it larger, use it in more paths.

   - Attempt returning Tx skbs to the originating CPU (like we already
     did for Rx skbs).

   - Various data structure layout and prefetch optimizations from Eric.

   - Remove ktime_get() from the recvmsg() fast path, ktime_get() is
     sadly quite expensive on recent AMD machines.

   - Extend threaded NAPI polling to allow the kthread busy poll for
     packets.

   - Make MPTCP use Rx backlog processing. This lowers the lock
     pressure, improving the Rx performance.

   - Support memcg accounting of MPTCP socket memory.

   - Allow admin to opt sockets out of global protocol memory accounting
     (using a sysctl or BPF-based policy). The global limits are a poor
     fit for modern container workloads, where limits are imposed using
     cgroups.

   - Improve heuristics for when to kick off AF_UNIX garbage collection.

   - Allow users to control TCP SACK compression, and default to 33% of
     RTT.

   - Add tcp_rcvbuf_low_rtt sysctl to let datacenter users avoid
     unnecessarily aggressive rcvbuf growth and overshot when the
     connection RTT is low.

   - Preserve skb metadata space across skb_push / skb_pull operations.

   - Support for IPIP encapsulation in the nftables flowtable offload.

   - Support appending IP interface information to ICMP messages (RFC
     5837).

   - Support setting max record size in TLS (RFC 8449).

   - Remove taking rtnl_lock from RTM_GETNEIGHTBL and RTM_SETNEIGHTBL.

   - Use a dedicated lock (and RCU) in MPLS, instead of rtnl_lock.

   - Let users configure the number of write buffers in SMC.

   - Add new struct sockaddr_unsized for sockaddr of unknown length,
     from Kees.

   - Some conversions away from the crypto_ahash API, from Eric Biggers.

   - Some preparations for slimming down struct page.

   - YAML Netlink protocol spec for WireGuard.

   - Add a tool on top of YAML Netlink specs/lib for reporting commonly
     computed derived statistics and summarized system state.

  Driver API:

   - Add CAN XL support to the CAN Netlink interface.

   - Add uAPI for reporting PHY Mean Square Error (MSE) diagnostics, as
     defined by the OPEN Alliance's "Advanced diagnostic features for
     100BASE-T1 automotive Ethernet PHYs" specification.

   - Add DPLL phase-adjust-gran pin attribute (and implement it in
     zl3073x).

   - Refactor xfrm_input lock to reduce contention when NIC offloads
     IPsec and performs RSS.

   - Add info to devlink params whether the current setting is the
     default or a user override. Allow resetting back to default.

   - Add standard device stats for PSP crypto offload.

   - Leverage DSA frame broadcast to implement simple HSR frame
     duplication for a lot of switches without dedicated HSR offload.

   - Add uAPI defines for 1.6Tbps link modes.

  Device drivers:

   - Add Motorcomm YT921x gigabit Ethernet switch support.

   - Add MUCSE driver for N500/N210 1GbE NIC series.

   - Convert drivers to support dedicated ops for timestamping control,
     and away from the direct IOCTL handling. While at it support GET
     operations for PHY timestamping.

   - Add (and convert most drivers to) a dedicated ethtool callback for
     reading the Rx ring count.

   - Significant refactoring efforts in the STMMAC driver, which
     supports Synopsys turn-key MAC IP integrated into a ton of SoCs.

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - support PPS in/out on all pins
      - Intel (100G, ice, idpf):
         - ice: implement standard ethtool and timestamping stats
         - i40e: support setting the max number of MAC addresses per VF
         - iavf: support RSS of GTP tunnels for 5G and LTE deployments
      - nVidia/Mellanox (mlx5):
         - reduce downtime on interface reconfiguration
         - disable being an XDP redirect target by default (same as
           other drivers) to avoid wasting resources if feature is
           unused
      - Meta (fbnic):
         - add support for Linux-managed PCS on 25G, 50G, and 100G links
      - Wangxun:
         - support Rx descriptor merge, and Tx head writeback
         - support Rx coalescing offload
         - support 25G SPF and 40G QSFP modules

   - Ethernet virtual:
      - Google (gve):
         - allow ethtool to configure rx_buf_len
         - implement XDP HW RX Timestamping support for DQ descriptor
           format
      - Microsoft vNIC (mana):
         - support HW link state events
         - handle hardware recovery events when probing the device

   - Ethernet NICs consumer, and embedded:
      - usbnet: add support for Byte Queue Limits (BQL)
      - AMD (amd-xgbe):
         - add device selftests
      - NXP (enetc):
         - add i.MX94 support
      - Broadcom integrated MACs (bcmgenet, bcmasp):
         - bcmasp: add support for PHY-based Wake-on-LAN
      - Broadcom switches (b53):
         - support port isolation
         - support BCM5389/97/98 and BCM63XX ARL formats
      - Lantiq/MaxLinear switches:
         - support bridge FDB entries on the CPU port
         - use regmap for register access
         - allow user to enable/disable learning
         - support Energy Efficient Ethernet
         - support configuring RMII clock delays
         - add tagging driver for MaxLinear GSW1xx switches
      - Synopsys (stmmac):
         - support using the HW clock in free running mode
         - add Eswin EIC7700 support
         - add Rockchip RK3506 support
         - add Altera Agilex5 support
      - Cadence (macb):
         - cleanup and consolidate descriptor and DMA address handling
         - add EyeQ5 support
      - TI:
         - icssg-prueth: support AF_XDP
      - Airoha access points:
         - add missing Ethernet stats and link state callback
         - add AN7583 support
         - support out-of-order Tx completion processing
      - Power over Ethernet:
         - pd692x0: preserve PSE configuration across reboots
         - add support for TPS23881B devices

   - Ethernet PHYs:
      - Open Alliance OATC14 10BASE-T1S PHY cable diagnostic support
      - Support 50G SerDes and 100G interfaces in Linux-managed PHYs
      - micrel:
         - support for non PTP SKUs of lan8814
         - enable in-band auto-negotiation on lan8814
      - realtek:
         - cable testing support on RTL8224
         - interrupt support on RTL8221B
      - motorcomm: support for PHY LEDs on YT853
      - microchip: support for LAN867X Rev.D0 PHYs w/ SQI and cable diag
      - mscc: support for PHY LED control

   - CAN drivers:
      - m_can: add support for optional reset and system wake up
      - remove can_change_mtu() obsoleted by core handling
      - mcp251xfd: support GPIO controller functionality

   - Bluetooth:
      - add initial support for PASTa

   - WiFi:
      - split ieee80211.h file, it's way too big
      - improvements in VHT radiotap reporting, S1G, Channel Switch
        Announcement handling, rate tracking in mesh networks
      - improve multi-radio monitor mode support, and add a cfg80211
        debugfs interface for it
      - HT action frame handling on 6 GHz
      - initial chanctx work towards NAN
      - MU-MIMO sniffer improvements

   - WiFi drivers:
      - RealTek (rtw89):
         - support USB devices RTL8852AU and RTL8852CU
         - initial work for RTL8922DE
         - improved injection support
      - Intel:
         - iwlwifi: new sniffer API support
      - MediaTek (mt76):
         - WED support for >32-bit DMA
         - airoha NPU support
         - regdomain improvements
         - continued WiFi7/MLO work
      - Qualcomm/Atheros:
         - ath10k: factory test support
         - ath11k: TX power insertion support
         - ath12k: BSS color change support
         - ath12k: statistics improvements
      - brcmfmac: Acer A1 840 tablet quirk
      - rtl8xxxu: 40 MHz connection fixes/support"

* tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1381 commits)
  net: page_pool: sanitise allocation order
  net: page pool: xa init with destroy on pp init
  net/mlx5e: Support XDP target xmit with dummy program
  net/mlx5e: Update XDP features in switch channels
  selftests/tc-testing: Test CAKE scheduler when enqueue drops packets
  net/sched: sch_cake: Fix incorrect qlen reduction in cake_drop
  wireguard: netlink: generate netlink code
  wireguard: uapi: generate header with ynl-gen
  wireguard: uapi: move flag enums
  wireguard: uapi: move enum wg_cmd
  wireguard: netlink: add YNL specification
  selftests: drv-net: Fix tolerance calculation in devlink_rate_tc_bw.py
  selftests: drv-net: Fix and clarify TC bandwidth split in devlink_rate_tc_bw.py
  selftests: drv-net: Set shell=True for sysfs writes in devlink_rate_tc_bw.py
  selftests: drv-net: Use Iperf3Runner in devlink_rate_tc_bw.py
  selftests: drv-net: introduce Iperf3Runner for measurement use cases
  selftests: drv-net: Add devlink_rate_tc_bw.py to TEST_PROGS
  net: ps3_gelic_net: Use napi_alloc_skb() and napi_gro_receive()
  Documentation: net: dsa: mention simple HSR offload helpers
  Documentation: net: dsa: mention availability of RedBox
  ...

Author: torvalds

Documentation/admin-guide/sysctl/net.rst

@@ -212,6 +212,14 @@ mem_pcpu_rsv
 
 Per-cpu reserved forward alloc cache size in page units. Default 1MB per CPU.
 
+bypass_prot_mem
+---------------
+
+Skip charging socket buffers to the global per-protocol memory
+accounting controlled by net.ipv4.tcp_mem, net.ipv4.udp_mem, etc.
+
+Default: 0 (off)
+
 rmem_default
 ------------
 
@@ -347,9 +355,9 @@ skb_defer_max
 -------------
 
 Max size (in skbs) of the per-cpu list of skbs being freed
-by the cpu which allocated them. Used by TCP stack so far.
+by the cpu which allocated them.
 
-Default: 64
+Default: 128
 
 optmem_max
 ----------
@@ -406,6 +414,23 @@ to SOCK_TXREHASH_DEFAULT (i. e. not overridden by setsockopt).
 If set to 1 (default), hash rethink is performed on listening socket.
 If set to 0, hash rethink is not performed.
 
+txq_reselection_ms
+------------------
+
+Controls how often (in ms) a busy connected flow can select another tx queue.
+
+A resection is desirable when/if user thread has migrated and XPS
+would select a different queue. Same can occur without XPS
+if the flow hash has changed.
+
+But switching txq can introduce reorders, especially if the
+old queue is under high pressure. Modern TCP stacks deal
+well with reorders if they happen not too often.
+
+To disable this feature, set the value to 0.
+
+Default : 1000
+
 gro_normal_batch
 ----------------
 

Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml

@@ -17,6 +17,7 @@ properties:
   compatible:
     enum:
       - airoha,en7581-eth
+      - airoha,an7583-eth
 
   reg:
     items:
@@ -44,6 +45,7 @@ properties:
       - description: PDMA irq
 
   resets:
+    minItems: 7
     maxItems: 8
 
   reset-names:
@@ -54,8 +56,9 @@ properties:
       - const: xsi-mac
       - const: hsi0-mac
       - const: hsi1-mac
-      - const: hsi-mac
+      - enum: [ hsi-mac, xfp-mac ]
       - const: xfp-mac
+    minItems: 7
 
   memory-region:
     items:
@@ -81,6 +84,36 @@ properties:
       interface to implement hardware flow offloading programming Packet
       Processor Engine (PPE) flow table.
 
+allOf:
+  - $ref: ethernet-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - airoha,en7581-eth
+    then:
+      properties:
+        resets:
+          minItems: 8
+
+        reset-names:
+          minItems: 8
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - airoha,an7583-eth
+    then:
+      properties:
+        resets:
+          maxItems: 7
+
+        reset-names:
+          maxItems: 7
+
 patternProperties:
   "^ethernet@[1-4]$":
     type: object

Documentation/devicetree/bindings/net/airoha,en7581-npu.yaml

@@ -18,6 +18,7 @@ properties:
   compatible:
     enum:
       - airoha,en7581-npu
+      - airoha,an7583-npu
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/net/amd,xgbe-seattle-v1a.yaml

@@ -0,0 +1,147 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/amd,xgbe-seattle-v1a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD XGBE Seattle v1a
+
+maintainers:
+  - Shyam Sundar S K <[email protected]>
+
+allOf:
+  - $ref: /schemas/net/ethernet-controller.yaml#
+
+properties:
+  compatible:
+    const: amd,xgbe-seattle-v1a
+
+  reg:
+    items:
+      - description: MAC registers
+      - description: PCS registers
+      - description: SerDes Rx/Tx registers
+      - description: SerDes integration registers (1/2)
+      - description: SerDes integration registers (2/2)
+
+  interrupts:
+    description: Device interrupts. The first entry is the general device
+      interrupt. If amd,per-channel-interrupt is specified, each DMA channel
+      interrupt must be specified. The last entry is the PCS auto-negotiation
+      interrupt.
+    minItems: 2
+    maxItems: 6
+
+  clocks:
+    items:
+      - description: DMA clock for the device
+      - description: PTP clock for the device
+
+  clock-names:
+    items:
+      - const: dma_clk
+      - const: ptp_clk
+
+  iommus:
+    maxItems: 1
+
+  phy-mode: true
+
+  dma-coherent: true
+
+  amd,per-channel-interrupt:
+    description: Indicates that Rx and Tx complete will generate a unique
+      interrupt for each DMA channel.
+    type: boolean
+
+  amd,speed-set:
+    description: >
+      Speed capabilities of the device.
+        0 = 1GbE and 10GbE
+        1 = 2.5GbE and 10GbE
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+
+  amd,serdes-blwc:
+    description: Baseline wandering correction enablement for each speed.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 3
+    maxItems: 3
+    items:
+      enum: [0, 1]
+
+  amd,serdes-cdr-rate:
+    description: CDR rate speed selection for each speed.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: CDR rate for 1GbE
+      - description: CDR rate for 2.5GbE
+      - description: CDR rate for 10GbE
+
+  amd,serdes-pq-skew:
+    description: PQ data sampling skew for each speed.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: PQ skew for 1GbE
+      - description: PQ skew for 2.5GbE
+      - description: PQ skew for 10GbE
+
+  amd,serdes-tx-amp:
+    description: TX amplitude boost for each speed.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: TX amplitude for 1GbE
+      - description: TX amplitude for 2.5GbE
+      - description: TX amplitude for 10GbE
+
+  amd,serdes-dfe-tap-config:
+    description: DFE taps available to run for each speed.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: DFE taps available for 1GbE
+      - description: DFE taps available for 2.5GbE
+      - description: DFE taps available for 10GbE
+
+  amd,serdes-dfe-tap-enable:
+    description: DFE taps to enable for each speed.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: DFE taps to enable for 1GbE
+      - description: DFE taps to enable for 2.5GbE
+      - description: DFE taps to enable for 10GbE
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - phy-mode
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ethernet@e0700000 {
+        compatible = "amd,xgbe-seattle-v1a";
+        reg = <0xe0700000 0x80000>,
+              <0xe0780000 0x80000>,
+              <0xe1240800 0x00400>,
+              <0xe1250000 0x00060>,
+              <0xe1250080 0x00004>;
+        interrupts = <0 325 4>,
+                     <0 326 1>, <0 327 1>, <0 328 1>, <0 329 1>,
+                     <0 323 4>;
+        amd,per-channel-interrupt;
+        clocks = <&xgbe_dma_clk>, <&xgbe_ptp_clk>;
+        clock-names = "dma_clk", "ptp_clk";
+        phy-mode = "xgmii";
+        mac-address = [ 02 a1 a2 a3 a4 a5 ];
+        amd,speed-set = <0>;
+        amd,serdes-blwc = <1>, <1>, <0>;
+        amd,serdes-cdr-rate = <2>, <2>, <7>;
+        amd,serdes-pq-skew = <10>, <10>, <30>;
+        amd,serdes-tx-amp = <15>, <15>, <10>;
+        amd,serdes-dfe-tap-config = <3>, <3>, <1>;
+        amd,serdes-dfe-tap-enable = <0>, <0>, <127>;
+    };

Documentation/devicetree/bindings/net/amd-xgbe.txt

@@ -19,7 +19,12 @@ allOf:
 
 properties:
   compatible:
-    const: aspeed,ast2600-mdio
+    oneOf:
+      - const: aspeed,ast2600-mdio
+      - items:
+          - enum:
+              - aspeed,ast2700-mdio
+          - const: aspeed,ast2600-mdio
 
   reg:
     maxItems: 1