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

Pull 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
  ...

Documentation/ABI/testing/sysfs-class-net

@@ -337,3 +337,18 @@ Contact:	[email protected]
 Description:
 		32-bit unsigned integer counting the number of times the link has
 		been down
+
+What:		/sys/class/net/<iface>/threaded
+Date:		Jan 2021
+KernelVersion:	5.12
+Contact:	[email protected]
+Description:
+		Boolean value to control the threaded mode per device. User could
+		set this value to enable/disable threaded mode for all napi
+		belonging to this device, without the need to do device up/down.
+
+		Possible values:
+		== ==================================
+		0  threaded mode disabled for this dev
+		1  threaded mode enabled for this dev
+		== ==================================

Documentation/ABI/testing/sysfs-class-net-dsa

@@ -3,5 +3,12 @@ Date:		August 2018
 KernelVersion:	4.20
 Contact:	[email protected]
 Description:
-		String indicating the type of tagging protocol used by the
-		DSA slave network device.
+		On read, this file returns a string indicating the type of
+		tagging protocol used by the DSA network devices that are
+		attached to this master interface.
+		On write, this file changes the tagging protocol of the
+		attached DSA switches, if this operation is supported by the
+		driver. Changing the tagging protocol must be done with the DSA
+		interfaces and the master interface all administratively down.
+		See the "name" field of each registered struct dsa_device_ops
+		for a list of valid values.

Documentation/ABI/testing/sysfs-class-net-qmi

@@ -48,3 +48,13 @@ Description:
 
 		Write a number ranging from 1 to 254 to delete a previously
 		created qmap mux based network device.
+
+What:		/sys/class/net/<qmimux iface>/qmap/mux_id
+Date:		January 2021
+KernelVersion:	5.12
+Contact:	Daniele Palmas <[email protected]>
+Description:
+		Unsigned integer
+
+		Indicates the mux id associated to the qmimux network interface
+		during its creation.

Documentation/bpf/bpf_design_QA.rst

@@ -208,6 +208,12 @@ data structures and compile with kernel internal headers. Both of these
 kernel internals are subject to change and can break with newer kernels
 such that the program needs to be adapted accordingly.
 
+Q: Are tracepoints part of the stable ABI?
+------------------------------------------
+A: NO. Tracepoints are tied to internal implementation details hence they are
+subject to change and can break with newer kernels. BPF programs need to change
+accordingly when this happens.
+
 Q: How much stack space a BPF program uses?
 -------------------------------------------
 A: Currently all program types are limited to 512 bytes of stack

Documentation/bpf/bpf_devel_QA.rst

@@ -501,16 +501,19 @@ All LLVM releases can be found at: http://releases.llvm.org/
 
 Q: Got it, so how do I build LLVM manually anyway?
 --------------------------------------------------
-A: You need cmake and gcc-c++ as build requisites for LLVM. Once you have
-that set up, proceed with building the latest LLVM and clang version
+A: We recommend that developers who want the fastest incremental builds
+use the Ninja build system, you can find it in your system's package
+manager, usually the package is ninja or ninja-build.
+
+You need ninja, cmake and gcc-c++ as build requisites for LLVM. Once you
+have that set up, proceed with building the latest LLVM and clang version
 from the git repositories::
 
      $ git clone https://github.com/llvm/llvm-project.git
-     $ mkdir -p llvm-project/llvm/build/install
+     $ mkdir -p llvm-project/llvm/build
      $ cd llvm-project/llvm/build
      $ cmake .. -G "Ninja" -DLLVM_TARGETS_TO_BUILD="BPF;X86" \
                 -DLLVM_ENABLE_PROJECTS="clang"    \
-                -DBUILD_SHARED_LIBS=OFF           \
                 -DCMAKE_BUILD_TYPE=Release        \
                 -DLLVM_BUILD_RUNTIME=OFF
      $ ninja

Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml

@@ -74,17 +74,60 @@ allOf:
             Any configuration is ignored when the phy-mode is set to "rmii".
 
         amlogic,rx-delay-ns:
+          deprecated: true
           enum:
             - 0
             - 2
           default: 0
           description:
-            The internal RGMII RX clock delay (provided by this IP block) in
-            nanoseconds. When phy-mode is set to "rgmii" then the RX delay
-            should be explicitly configured. When the phy-mode is set to
-            either "rgmii-id" or "rgmii-rxid" the RX clock delay is already
-            provided by the PHY. Any configuration is ignored when the
-            phy-mode is set to "rmii".
+            The internal RGMII RX clock delay in nanoseconds. Deprecated, use
+            rx-internal-delay-ps instead.
+
+        rx-internal-delay-ps:
+          default: 0
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson8b-dwmac
+              - amlogic,meson8m2-dwmac
+              - amlogic,meson-gxbb-dwmac
+              - amlogic,meson-axg-dwmac
+    then:
+      properties:
+        rx-internal-delay-ps:
+          enum:
+            - 0
+            - 2000
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson-g12a-dwmac
+    then:
+      properties:
+        rx-internal-delay-ps:
+          enum:
+            - 0
+            - 200
+            - 400
+            - 600
+            - 800
+            - 1000
+            - 1200
+            - 1400
+            - 1600
+            - 1800
+            - 2000
+            - 2200
+            - 2400
+            - 2600
+            - 2800
+            - 3000
 
 properties:
   compatible:

Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml

@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/brcm,bcm4908-enet.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM4908 Ethernet controller
+
+description: Broadcom's Ethernet controller integrated into BCM4908 family SoCs
+
+maintainers:
+  - Rafał Miłecki <[email protected]>
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+properties:
+  compatible:
+    const: brcm,bcm4908-enet
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: RX interrupt
+
+  interrupt-names:
+    const: rx
+
+required:
+  - reg
+  - interrupts
+  - interrupt-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    ethernet@80002000 {
+        compatible = "brcm,bcm4908-enet";
+        reg = <0x80002000 0x1000>;
+
+        interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-names = "rx";
+    };

Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt

@@ -1,108 +1,13 @@
 * Broadcom Starfighter 2 integrated swich
 
-Required properties:
+See dsa/brcm,bcm7445-switch-v4.0.yaml for the documentation.
 
-- compatible: should be one of
-	"brcm,bcm7445-switch-v4.0"
-	"brcm,bcm7278-switch-v4.0"
-	"brcm,bcm7278-switch-v4.8"
-- reg: addresses and length of the register sets for the device, must be 6
-  pairs of register addresses and lengths
-- interrupts: interrupts for the devices, must be two interrupts
-- #address-cells: must be 1, see dsa/dsa.txt
-- #size-cells: must be 0, see dsa/dsa.txt
-
-Deprecated binding required properties:
+*Deprecated* binding required properties:
 
 - dsa,mii-bus: phandle to the MDIO bus controller, see dsa/dsa.txt
 - dsa,ethernet: phandle to the CPU network interface controller, see dsa/dsa.txt
 - #address-cells: must be 2, see dsa/dsa.txt
 
-Subnodes:
-
-The integrated switch subnode should be specified according to the binding
-described in dsa/dsa.txt.
-
-Optional properties:
-
-- reg-names: litteral names for the device base register addresses, when present
-  must be: "core", "reg", "intrl2_0", "intrl2_1", "fcb", "acb"
-
-- interrupt-names: litternal names for the device interrupt lines, when present
-  must be: "switch_0" and "switch_1"
-
-- brcm,num-gphy: specify the maximum number of integrated gigabit PHYs in the
-  switch
-
-- brcm,num-rgmii-ports: specify the maximum number of RGMII interfaces supported
-  by the switch
-
-- brcm,fcb-pause-override: boolean property, if present indicates that the switch
-  supports Failover Control Block pause override capability
-
-- brcm,acb-packets-inflight: boolean property, if present indicates that the switch
-  Admission Control Block supports reporting the number of packets in-flight in a
-  switch queue
-
-- resets: a single phandle and reset identifier pair. See
-  Documentation/devicetree/bindings/reset/reset.txt for details.
-
-- reset-names: If the "reset" property is specified, this property should have
-  the value "switch" to denote the switch reset line.
-
-- clocks: when provided, the first phandle is to the switch's main clock and
-  is valid for both BCM7445 and BCM7278. The second phandle is only applicable
-  to BCM7445 and is to support dividing the switch core clock.
-
-- clock-names: when provided, the first phandle must be "sw_switch", and the
-  second must be named "sw_switch_mdiv".
-
-Port subnodes:
-
-Optional properties:
-
-- brcm,use-bcm-hdr: boolean property, if present, indicates that the switch
-  port has Broadcom tags enabled (per-packet metadata)
-
-Example:
-
-switch_top@f0b00000 {
-	compatible = "simple-bus";
-	#size-cells = <1>;
-	#address-cells = <1>;
-	ranges = <0 0xf0b00000 0x40804>;
-
-	ethernet_switch@0 {
-		compatible = "brcm,bcm7445-switch-v4.0";
-		#size-cells = <0>;
-		#address-cells = <1>;
-		reg = <0x0 0x40000
-			0x40000 0x110
-			0x40340 0x30
-			0x40380 0x30
-			0x40400 0x34
-			0x40600 0x208>;
-		reg-names = "core", "reg", intrl2_0", "intrl2_1",
-			    "fcb, "acb";
-		interrupts = <0 0x18 0
-				0 0x19 0>;
-		brcm,num-gphy = <1>;
-		brcm,num-rgmii-ports = <2>;
-		brcm,fcb-pause-override;
-		brcm,acb-packets-inflight;
-
-		ports {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			port@0 {
-				label = "gphy";
-				reg = <0>;
-			};
-		};
-	};
-};
-
 Example using the old DSA DeviceTree binding:
 
 switch_top@f0b00000 {
@@ -132,7 +37,7 @@ switch_top@f0b00000 {
 		switch@0 {
 			reg = <0 0>;
 			#size-cells = <0>;
-			#address-cells <1>;
+			#address-cells = <1>;
 
 			port@0 {
 				label = "gphy";

Documentation/devicetree/bindings/net/btusb.txt

@@ -38,7 +38,7 @@ Following example uses irq pin number 3 of gpio0 for out of band wake-on-bt:
 	compatible = "usb1286,204e";
 	reg = <1>;
 	interrupt-parent = <&gpio0>;
-	interrupt-name = "wakeup";
+	interrupt-names = "wakeup";
 	interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
     };
 };

Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml

@@ -110,6 +110,16 @@ properties:
     description:
       Enable CAN remote wakeup.
 
+  fsl,scu-index:
+    description: |
+      The scu index of CAN instance.
+      For SoCs with SCU support, need setup stop mode via SCU firmware, so this
+      property can help indicate a resource. It supports up to 3 CAN instances
+      now.
+    $ref: /schemas/types.yaml#/definitions/uint8
+    minimum: 0
+    maximum: 2
+
 required:
   - compatible
   - reg
@@ -137,4 +147,5 @@ examples:
         clocks = <&clks 1>, <&clks 2>;
         clock-names = "ipg", "per";
         fsl,stop-mode = <&gpr 0x34 28>;
+        fsl,scu-index = /bits/ 8 <1>;
     };