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().
  ...

9 files changed, 165 insertions, 0 deletions

diff --git a/arch/ia64/scripts/check-gas b/arch/ia64/scripts/check-gas
new file mode 100755
index 000000000..787cf9b6b
--- /dev/null
+++ b/arch/ia64/scripts/check-gas
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+dir=$(dirname $0)
+CC=$1
+OBJDUMP=$2
+tmp=${TMPDIR:-/tmp}
+out=$tmp/out$$.o
+$CC -c $dir/check-gas-asm.S -o $out
+res=$($OBJDUMP -r --section .data $out | fgrep 00004 | tr -s ' ' |cut -f3 -d' ')
+rm -f $out
+if [ $res != ".text" ]; then
+	echo buggy
+else
+	echo good
+fi
+exit 0
diff --git a/arch/ia64/scripts/check-gas-asm.S b/arch/ia64/scripts/check-gas-asm.S
new file mode 100644
index 000000000..010e1d227
--- /dev/null
+++ b/arch/ia64/scripts/check-gas-asm.S
@@ -0,0 +1,2 @@
+[1:]	nop 0
+	.xdata4 ".data", 0, 1b-.
diff --git a/arch/ia64/scripts/check-model.c b/arch/ia64/scripts/check-model.c
new file mode 100644
index 000000000..e1d4e86e3
--- /dev/null
+++ b/arch/ia64/scripts/check-model.c
@@ -0,0 +1 @@
+int __attribute__ ((__model__ (__small__))) x;
diff --git a/arch/ia64/scripts/check-segrel.S b/arch/ia64/scripts/check-segrel.S
new file mode 100644
index 000000000..65d6378ad
--- /dev/null
+++ b/arch/ia64/scripts/check-segrel.S
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+	.rodata
+	data4 @segrel(start)
+	.data
+start:
diff --git a/arch/ia64/scripts/check-segrel.lds b/arch/ia64/scripts/check-segrel.lds
new file mode 100644
index 000000000..c385d246e
--- /dev/null
+++ b/arch/ia64/scripts/check-segrel.lds
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+SECTIONS {
+	. = SIZEOF_HEADERS;
+	.rodata : { *(.rodata) } :ro
+	.note : { *(.note*) }
+	. = 0xa0000;
+	.data : { *(.data) } :dat
+	/DISCARD/ : { *(*) }
+}
+PHDRS {
+  ro PT_LOAD FILEHDR PHDRS;
+  dat PT_LOAD;
+}
diff --git a/arch/ia64/scripts/check-serialize.S b/arch/ia64/scripts/check-serialize.S
new file mode 100644
index 000000000..0400c1068
--- /dev/null
+++ b/arch/ia64/scripts/check-serialize.S
@@ -0,0 +1,2 @@
+	.serialize.data
+	.serialize.instruction
diff --git a/arch/ia64/scripts/check-text-align.S b/arch/ia64/scripts/check-text-align.S
new file mode 100644
index 000000000..107fa1c88
--- /dev/null
+++ b/arch/ia64/scripts/check-text-align.S
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+	.proc foo
+	.prologue
+foo:	.save rp, r2
+	nop 0
+	.align 64
+	.endp foo
diff --git a/arch/ia64/scripts/toolchain-flags b/arch/ia64/scripts/toolchain-flags
new file mode 100755
index 000000000..12dff5c98
--- /dev/null
+++ b/arch/ia64/scripts/toolchain-flags
@@ -0,0 +1,54 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Check whether linker can handle cross-segment @segrel():
+#
+CPPFLAGS=""
+CC=$1
+OBJDUMP=$2
+READELF=$3
+dir=$(dirname $0)
+tmp=${TMPDIR:-/tmp}
+out=$tmp/out$$
+
+# Check whether cross-segment segment-relative relocs work fine.  We need
+# that for building the gate DSO:
+
+$CC -nostdlib -static -Wl,-T$dir/check-segrel.lds $dir/check-segrel.S -o $out
+res=$($OBJDUMP --full --section .rodata $out | fgrep 000 | cut -f3 -d' ')
+rm -f $out
+if [ $res != 00000a00 ]; then
+    CPPFLAGS="$CPPFLAGS -DHAVE_BUGGY_SEGREL"
+    cat >&2 <<EOF
+warning: your linker cannot handle cross-segment segment-relative relocations.
+         please upgrade to a newer version (it is safe to use this linker, but
+         the kernel will be bigger than strictly necessary).
+EOF
+fi
+
+# Check whether .align inside a function works as expected.
+
+$CC -c $dir/check-text-align.S -o $out
+$READELF -u $out | fgrep -q 'prologue(rlen=12)'
+res=$?
+rm -f $out
+if [ $res -eq 0 ]; then
+    CPPFLAGS="$CPPFLAGS -DHAVE_WORKING_TEXT_ALIGN"
+fi
+
+if ! $CC -c $dir/check-model.c -o $out 2>&1 | grep  __model__ | grep -q attrib
+then
+    CPPFLAGS="$CPPFLAGS -DHAVE_MODEL_SMALL_ATTRIBUTE"
+fi
+rm -f $out
+
+# Check whether assembler supports .serialize.{data,instruction} directive.
+
+$CC -c $dir/check-serialize.S -o $out 2>/dev/null
+res=$?
+rm -f $out
+if [ $res -eq 0 ]; then
+    CPPFLAGS="$CPPFLAGS -DHAVE_SERIALIZE_DIRECTIVE"
+fi
+
+echo $CPPFLAGS
diff --git a/arch/ia64/scripts/unwcheck.py b/arch/ia64/scripts/unwcheck.py
new file mode 100644
index 000000000..9581742f0
--- /dev/null
+++ b/arch/ia64/scripts/unwcheck.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Usage: unwcheck.py FILE
+#
+# This script checks the unwind info of each function in file FILE
+# and verifies that the sum of the region-lengths matches the total
+# length of the function.
+#
+# Based on a shell/awk script originally written by Harish Patil,
+# which was converted to Perl by Matthew Chapman, which was converted
+# to Python by David Mosberger.
+#
+import os
+import re
+import sys
+
+if len(sys.argv) != 2:
+    print("Usage: %s FILE" % sys.argv[0])
+    sys.exit(2)
+
+readelf = os.getenv("READELF", "readelf")
+
+start_pattern = re.compile("<([^>]*)>: \[0x([0-9a-f]+)-0x([0-9a-f]+)\]")
+rlen_pattern  = re.compile(".*rlen=([0-9]+)")
+
+def check_func (func, slots, rlen_sum):
+    if slots != rlen_sum:
+        global num_errors
+        num_errors += 1
+        if not func: func = "[%#x-%#x]" % (start, end)
+        print("ERROR: %s: %lu slots, total region length = %lu" % (func, slots, rlen_sum))
+    return
+
+num_funcs = 0
+num_errors = 0
+func = False
+slots = 0
+rlen_sum = 0
+for line in os.popen("%s -u %s" % (readelf, sys.argv[1])):
+    m = start_pattern.match(line)
+    if m:
+        check_func(func, slots, rlen_sum)
+
+        func  = m.group(1)
+        start = int(m.group(2), 16)
+        end   = int(m.group(3), 16)
+        slots = 3 * (end - start) / 16
+        rlen_sum = 0
+        num_funcs += 1
+    else:
+        m = rlen_pattern.match(line)
+        if m:
+            rlen_sum += int(m.group(1))
+check_func(func, slots, rlen_sum)
+
+if num_errors == 0:
+    print("No errors detected in %u functions." % num_funcs)
+else:
+    if num_errors > 1:
+        err="errors"
+    else:
+        err="error"
+    print("%u %s detected in %u functions." % (num_errors, err, num_funcs))
+    sys.exit(1)