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().
  ...

1 files changed, 221 insertions, 0 deletions

diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
new file mode 100644
index 000000000..d3c2616cb
--- /dev/null
+++ b/arch/mips/kernel/scall64-o32.S
@@ -0,0 +1,221 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995 - 2000, 2001 by Ralf Baechle
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2001 MIPS Technologies, Inc.
+ * Copyright (C) 2004 Thiemo Seufer
+ *
+ * Hairy, the userspace application uses a different argument passing
+ * convention than the kernel, so we have to translate things from o32
+ * to ABI64 calling convention.	 64-bit syscalls are also processed
+ * here for now.
+ */
+#include <linux/errno.h>
+#include <asm/asm.h>
+#include <asm/asmmacro.h>
+#include <asm/irqflags.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+#include <asm/thread_info.h>
+#include <asm/unistd.h>
+#include <asm/sysmips.h>
+
+	.align	5
+NESTED(handle_sys, PT_SIZE, sp)
+	.set	noat
+	SAVE_SOME
+	TRACE_IRQS_ON_RELOAD
+	STI
+	.set	at
+	ld	t1, PT_EPC(sp)		# skip syscall on return
+
+	dsubu	t0, v0, __NR_O32_Linux	# check syscall number
+	sltiu	t0, t0, __NR_O32_Linux_syscalls
+	daddiu	t1, 4			# skip to next instruction
+	sd	t1, PT_EPC(sp)
+	beqz	t0, not_o32_scall
+#if 0
+ SAVE_ALL
+ move a1, v0
+ ASM_PRINT("Scall %ld\n")
+ RESTORE_ALL
+#endif
+
+	/* We don't want to stumble over broken sign extensions from
+	   userland. O32 does never use the upper half. */
+	sll	a0, a0, 0
+	sll	a1, a1, 0
+	sll	a2, a2, 0
+	sll	a3, a3, 0
+
+	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
+
+	/*
+	 * More than four arguments.  Try to deal with it by copying the
+	 * stack arguments from the user stack to the kernel stack.
+	 * This Sucks (TM).
+	 *
+	 * We intentionally keep the kernel stack a little below the top of
+	 * userspace so we don't have to do a slower byte accurate check here.
+	 */
+	ld	t0, PT_R29(sp)		# get old user stack pointer
+	daddu	t1, t0, 32
+	bltz	t1, bad_stack
+
+load_a4: lw	a4, 16(t0)		# argument #5 from usp
+load_a5: lw	a5, 20(t0)		# argument #6 from usp
+load_a6: lw	a6, 24(t0)		# argument #7 from usp
+load_a7: lw	a7, 28(t0)		# argument #8 from usp
+loads_done:
+
+	.section __ex_table,"a"
+	PTR_WD	load_a4, bad_stack_a4
+	PTR_WD	load_a5, bad_stack_a5
+	PTR_WD	load_a6, bad_stack_a6
+	PTR_WD	load_a7, bad_stack_a7
+	.previous
+
+	li	t1, _TIF_WORK_SYSCALL_ENTRY
+	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
+	and	t0, t1, t0
+	bnez	t0, trace_a_syscall
+
+syscall_common:
+	dsll	t0, v0, 3		# offset into table
+	ld	t2, (sys32_call_table - (__NR_O32_Linux * 8))(t0)
+
+	jalr	t2			# Do The Real Thing (TM)
+
+	li	t0, -EMAXERRNO - 1	# error?
+	sltu	t0, t0, v0
+	sd	t0, PT_R7(sp)		# set error flag
+	beqz	t0, 1f
+
+	ld	t1, PT_R2(sp)		# syscall number
+	dnegu	v0			# error
+	sd	t1, PT_R0(sp)		# save it for syscall restarting
+1:	sd	v0, PT_R2(sp)		# result
+
+o32_syscall_exit:
+	j	syscall_exit_partial
+
+/* ------------------------------------------------------------------------ */
+
+trace_a_syscall:
+	SAVE_STATIC
+	sd	a4, PT_R8(sp)		# Save argument registers
+	sd	a5, PT_R9(sp)
+	sd	a6, PT_R10(sp)
+	sd	a7, PT_R11(sp)		# For indirect syscalls
+
+	move	a0, sp
+	/*
+	 * absolute syscall number is in v0 unless we called syscall(__NR_###)
+	 * where the real syscall number is in a0
+	 * note: NR_syscall is the first O32 syscall but the macro is
+	 * only defined when compiling with -mabi=32 (CONFIG_32BIT)
+	 * therefore __NR_O32_Linux is used (4000)
+	 */
+	.set	push
+	.set	reorder
+	subu	t1, v0,  __NR_O32_Linux
+	move	a1, v0
+	bnez	t1, 1f /* __NR_syscall at offset 0 */
+	ld	a1, PT_R4(sp) /* Arg1 for __NR_syscall case */
+	.set	pop
+
+1:	jal	syscall_trace_enter
+
+	bltz	v0, 1f			# seccomp failed? Skip syscall
+
+	RESTORE_STATIC
+	ld	v0, PT_R2(sp)		# Restore syscall (maybe modified)
+	ld	a0, PT_R4(sp)		# Restore argument registers
+	ld	a1, PT_R5(sp)
+	ld	a2, PT_R6(sp)
+	ld	a3, PT_R7(sp)
+	ld	a4, PT_R8(sp)
+	ld	a5, PT_R9(sp)
+	ld	a6, PT_R10(sp)
+	ld	a7, PT_R11(sp)		# For indirect syscalls
+
+	dsubu	t0, v0, __NR_O32_Linux	# check (new) syscall number
+	sltiu	t0, t0, __NR_O32_Linux_syscalls
+	beqz	t0, not_o32_scall
+
+	j	syscall_common
+
+1:	j	syscall_exit
+
+/* ------------------------------------------------------------------------ */
+
+	/*
+	 * The stackpointer for a call with more than 4 arguments is bad.
+	 */
+bad_stack:
+	li	v0, EFAULT
+	sd	v0, PT_R2(sp)
+	li	t0, 1			# set error flag
+	sd	t0, PT_R7(sp)
+	j	o32_syscall_exit
+
+bad_stack_a4:
+	li	a4, 0
+	b	load_a5
+
+bad_stack_a5:
+	li	a5, 0
+	b	load_a6
+
+bad_stack_a6:
+	li	a6, 0
+	b	load_a7
+
+bad_stack_a7:
+	li	a7, 0
+	b	loads_done
+
+not_o32_scall:
+	/*
+	 * This is not an o32 compatibility syscall, pass it on
+	 * to the 64-bit syscall handlers.
+	 */
+#ifdef CONFIG_MIPS32_N32
+	j	handle_sysn32
+#else
+	j	handle_sys64
+#endif
+	END(handle_sys)
+
+LEAF(sys32_syscall)
+	subu	t0, a0, __NR_O32_Linux	# check syscall number
+	sltiu	v0, t0, __NR_O32_Linux_syscalls
+	beqz	t0, einval		# do not recurse
+	dsll	t1, t0, 3
+	beqz	v0, einval
+	ld	t2, sys32_call_table(t1)		# syscall routine
+
+	move	a0, a1			# shift argument registers
+	move	a1, a2
+	move	a2, a3
+	move	a3, a4
+	move	a4, a5
+	move	a5, a6
+	move	a6, a7
+	jr	t2
+	/* Unreached */
+
+einval: li	v0, -ENOSYS
+	jr	ra
+	END(sys32_syscall)
+
+#define __SYSCALL_WITH_COMPAT(nr, native, compat)	__SYSCALL(nr, compat)
+#define __SYSCALL(nr, entry)	PTR_WD entry
+	.align	3
+	.type	sys32_call_table,@object
+EXPORT(sys32_call_table)
+#include <asm/syscall_table_o32.h>