Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

4 files changed, 309 insertions, 0 deletions

diff --git a/tools/testing/selftests/tc-testing/creating-testcases/AddingTestCases.txt b/tools/testing/selftests/tc-testing/creating-testcases/AddingTestCases.txt
new file mode 100644
index 000000000..a28571aff
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/AddingTestCases.txt
@@ -0,0 +1,105 @@
+tdc - Adding test cases for tdc
+
+Author: Lucas Bates - lucasb@mojatatu.com
+
+ADDING TEST CASES
+-----------------
+
+User-defined tests should be added by defining a separate JSON file.  This
+will help prevent conflicts when updating the repository. Refer to
+template.json for the required JSON format for test cases.
+
+Include the 'id' field, but do not assign a value. Running tdc with the -i
+option will generate a unique ID for that test case.
+
+tdc will recursively search the 'tc-tests' subdirectory (or the
+directories named with the -D option) for .json files.  Any test case
+files you create in these directories will automatically be included.
+If you wish to store your custom test cases elsewhere, be sure to run
+tdc with the -f argument and the path to your file, or the -D argument
+and the path to your directory(ies).
+
+Be aware of required escape characters in the JSON data - particularly
+when defining the match pattern. Refer to the supplied json test files
+for examples when in doubt.  The match pattern is written in json, and
+will be used by python.  So the match pattern will be a python regular
+expression, but should be written using json syntax.
+
+
+TEST CASE STRUCTURE
+-------------------
+
+Each test case has required data:
+
+id:           A unique alphanumeric value to identify a particular test case
+name:         Descriptive name that explains the command under test
+skip:         A completely optional key, if the corresponding value is "yes"
+              then tdc will not execute the test case in question. However,
+              this test case will still appear in the results output but
+              marked as skipped. This key can be placed anywhere inside the
+              test case at the top level.
+category:     A list of single-word descriptions covering what the command
+              under test is testing. Example: filter, actions, u32, gact, etc.
+setup:        The list of commands required to ensure the command under test
+              succeeds. For example: if testing a filter, the command to create
+              the qdisc would appear here.
+	      This list can be empty.
+	      Each command can be a string to be executed, or a list consisting
+	      of a string which is a command to be executed, followed by 1 or
+	      more acceptable exit codes for this command.
+	      If only a string is given for the command, then an exit code of 0
+	      will be expected.
+cmdUnderTest: The tc command being tested itself.
+expExitCode:  The code returned by the command under test upon its termination.
+              tdc will compare this value against the actual returned value.
+verifyCmd:    The tc command to be run to verify successful execution.
+              For example: if the command under test creates a gact action,
+              verifyCmd should be "$TC actions show action gact"
+matchPattern: A regular expression to be applied against the output of the
+              verifyCmd to prove the command under test succeeded. This pattern
+              should be as specific as possible so that a false positive is not
+              matched.
+matchCount:   How many times the regex in matchPattern should match. A value
+              of 0 is acceptable.
+teardown:     The list of commands to clean up after the test is completed.
+              The environment should be returned to the same state as when
+              this test was started: qdiscs deleted, actions flushed, etc.
+	      This list can be empty.
+	      Each command can be a string to be executed, or a list consisting
+	      of a string which is a command to be executed, followed by 1 or
+	      more acceptable exit codes for this command.
+	      If only a string is given for the command, then an exit code of 0
+	      will be expected.
+
+
+SETUP/TEARDOWN ERRORS
+---------------------
+
+If an error is detected during the setup/teardown process, execution of the
+tests will immediately stop with an error message and the namespace in which
+the tests are run will be destroyed. This is to prevent inaccurate results
+in the test cases.  tdc will output a series of TAP results for the skipped
+tests.
+
+Repeated failures of the setup/teardown may indicate a problem with the test
+case, or possibly even a bug in one of the commands that are not being tested.
+
+It's possible to include acceptable exit codes with the setup/teardown command
+so that it doesn't halt the script for an error that doesn't matter. Turn the
+individual command into a list, with the command being first, followed by all
+acceptable exit codes for the command.
+
+Example:
+
+A pair of setup commands.  The first can have exit code 0, 1 or 255, the
+second must have exit code 0.
+
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action reclassify index 65536"
+        ],
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/example.json b/tools/testing/selftests/tc-testing/creating-testcases/example.json
new file mode 100644
index 000000000..5ec501200
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/example.json
@@ -0,0 +1,55 @@
+[
+    {
+        "id": "1f",
+        "name": "simple test to test framework",
+        "category": [
+            "example"
+        ],
+        "setup": [
+            "mkdir mytest"
+        ],
+        "cmdUnderTest": "touch mytest/blorfl",
+        "expExitCode": "0",
+        "verifyCmd": "ls mytest/* | grep '[b]lorfl'",
+        "matchPattern": "orfl",
+        "matchCount": "1",
+        "teardown": [
+            "rm -rf mytest"
+        ]
+    },
+    {
+        "id": "2f",
+        "name": "simple test, no need for verify",
+        "category": [
+            "example"
+        ],
+        "setup": [
+            "mkdir mytest",
+            "touch mytest/blorfl"
+        ],
+        "cmdUnderTest": "ls mytest/blorfl",
+        "expExitCode": "0",
+        "verifyCmd": "/bin/true",
+        "matchPattern": " ",
+        "matchCount": "0",
+        "teardown": [
+            "rm -rf mytest"
+        ]
+    },
+    {
+        "id": "3f",
+        "name": "simple test, no need for setup or teardown (or verify)",
+        "category": [
+            "example"
+        ],
+        "setup": [
+        ],
+        "cmdUnderTest": "ip l l lo",
+        "expExitCode": "0",
+        "verifyCmd": "/bin/true",
+        "matchPattern": " ",
+        "matchCount": "0",
+        "teardown": [
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json b/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json
new file mode 100644
index 000000000..5a9377b72
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json
@@ -0,0 +1,98 @@
+[
+    {
+        "id": "b1e9",
+        "name": "Test matching of source IP",
+        "category": [
+            "actions",
+            "scapy"
+        ],
+        "plugins": {
+            "requires": [
+                "nsPlugin",
+                "scapyPlugin"
+            ]
+        },
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+                2,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: prio 3 protocol ip flower src_ip 16.61.16.61 flowid 1:1 action ok",
+        "scapy": {
+            "iface": "$DEV0",
+            "count": 1,
+            "packet": "Ether(type=0x800)/IP(src='16.61.16.61')/ICMP()"
+        },
+        "expExitCode": "0",
+        "verifyCmd": "$TC -s -j filter ls dev $DEV1 ingress prio 3",
+        "matchJSON": [
+            {
+                "path": [
+                    1,
+                    "options",
+                    "actions",
+                    0,
+                    "stats",
+                    "packets"
+                ],
+                "value": 1
+            }
+        ],
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "e9c4",
+        "name": "Test matching of source IP with wrong count",
+        "category": [
+            "actions",
+            "scapy"
+        ],
+        "plugins": {
+            "requires": [
+                "nsPlugin",
+                "scapyPlugin"
+            ]
+        },
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+                2,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: prio 3 protocol ip flower src_ip 16.61.16.61 flowid 1:1 action ok",
+        "scapy": {
+            "iface": "$DEV0",
+            "count": 3,
+            "packet": "Ether(type=0x800)/IP(src='16.61.16.61')/ICMP()"
+        },
+        "expExitCode": "0",
+        "verifyCmd": "$TC -s -j filter ls dev $DEV1 parent ffff:",
+        "matchJSON": [
+            {
+                "path": [
+                    1,
+                    "options",
+                    "actions",
+                    0,
+                    "stats",
+                    "packets"
+                ],
+                "value": 1
+            }
+        ],
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/template.json b/tools/testing/selftests/tc-testing/creating-testcases/template.json
new file mode 100644
index 000000000..8b99b86d6
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/template.json
@@ -0,0 +1,51 @@
+[
+    {
+        "id": "",
+        "name": "",
+        "category": [
+            "",
+            ""
+        ],
+        "setup": [
+            ""
+        ],
+        "cmdUnderTest": "",
+        "expExitCode": "",
+        "verifyCmd": "",
+        "matchPattern": "",
+        "matchCount": "",
+        "teardown": [
+            ""
+        ]
+    },
+    {
+        "id": "",
+        "name": "",
+        "category": [
+            "",
+            ""
+        ],
+        "setup": [
+            "",
+	    [
+		"",
+		0,
+		1,
+		255
+	    ]
+        ],
+        "cmdUnderTest": "",
+        "expExitCode": "",
+        "verifyCmd": "",
+        "matchPattern": "",
+        "matchCount": "",
+        "teardown": [
+            "",
+	    [
+		"",
+		0,
+		255
+            ]
+        ]
+    }
+]