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, 261 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/entry.h b/arch/m68k/include/asm/entry.h
new file mode 100644
index 000000000..9b52b060c
--- /dev/null
+++ b/arch/m68k/include/asm/entry.h
@@ -0,0 +1,261 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __M68K_ENTRY_H
+#define __M68K_ENTRY_H
+
+#include <asm/setup.h>
+#include <asm/page.h>
+#ifdef __ASSEMBLY__
+#include <asm/thread_info.h>
+#endif
+
+/*
+ * Stack layout in 'ret_from_exception':
+ *
+ *	This allows access to the syscall arguments in registers d1-d5
+ *
+ *	 0(sp) - d1
+ *	 4(sp) - d2
+ *	 8(sp) - d3
+ *	 C(sp) - d4
+ *	10(sp) - d5
+ *	14(sp) - a0
+ *	18(sp) - a1
+ *	1C(sp) - a2
+ *	20(sp) - d0
+ *	24(sp) - orig_d0
+ *	28(sp) - stack adjustment
+ *	2C(sp) - [ sr              ] [ format & vector ]
+ *	2E(sp) - [ pc-hiword       ] [ sr              ]
+ *	30(sp) - [ pc-loword       ] [ pc-hiword       ]
+ *	32(sp) - [ format & vector ] [ pc-loword       ]
+ *		  ^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^^^^^
+ *			M68K		  COLDFIRE
+ */
+
+/* the following macro is used when enabling interrupts */
+#if defined(MACH_ATARI_ONLY)
+	/* block out HSYNC = ipl 2 on the atari */
+#define ALLOWINT	(~0x500)
+#else
+	/* portable version */
+#define ALLOWINT	(~0x700)
+#endif /* machine compilation types */
+
+#ifdef __ASSEMBLY__
+/*
+ * This defines the normal kernel pt-regs layout.
+ *
+ * regs a3-a6 and d6-d7 are preserved by C code
+ * the kernel doesn't mess with usp unless it needs to
+ */
+#define SWITCH_STACK_SIZE	(6*4+4)	/* includes return address */
+
+#ifdef CONFIG_COLDFIRE
+#ifdef CONFIG_COLDFIRE_SW_A7
+/*
+ * This is made a little more tricky on older ColdFires. There is no
+ * separate supervisor and user stack pointers. Need to artificially
+ * construct a usp in software... When doing this we need to disable
+ * interrupts, otherwise bad things will happen.
+ */
+.globl sw_usp
+.globl sw_ksp
+
+.macro SAVE_ALL_SYS
+	move	#0x2700,%sr		/* disable intrs */
+	btst	#5,%sp@(2)		/* from user? */
+	bnes	6f			/* no, skip */
+	movel	%sp,sw_usp		/* save user sp */
+	addql	#8,sw_usp		/* remove exception */
+	movel	sw_ksp,%sp		/* kernel sp */
+	subql	#8,%sp			/* room for exception */
+	clrl	%sp@-			/* stkadj */
+	movel	%d0,%sp@-		/* orig d0 */
+	movel	%d0,%sp@-		/* d0 */
+	lea	%sp@(-32),%sp		/* space for 8 regs */
+	moveml	%d1-%d5/%a0-%a2,%sp@
+	movel	sw_usp,%a0		/* get usp */
+	movel	%a0@-,%sp@(PT_OFF_PC)	/* copy exception program counter */
+	movel	%a0@-,%sp@(PT_OFF_FORMATVEC)/*copy exception format/vector/sr */
+	bra	7f
+	6:
+	clrl	%sp@-			/* stkadj */
+	movel	%d0,%sp@-		/* orig d0 */
+	movel	%d0,%sp@-		/* d0 */
+	lea	%sp@(-32),%sp		/* space for 8 regs */
+	moveml	%d1-%d5/%a0-%a2,%sp@
+	7:
+.endm
+
+.macro SAVE_ALL_INT
+	SAVE_ALL_SYS
+	moveq	#-1,%d0			/* not system call entry */
+	movel	%d0,%sp@(PT_OFF_ORIG_D0)
+.endm
+
+.macro RESTORE_USER
+	move	#0x2700,%sr		/* disable intrs */
+	movel	sw_usp,%a0		/* get usp */
+	movel	%sp@(PT_OFF_PC),%a0@-	/* copy exception program counter */
+	movel	%sp@(PT_OFF_FORMATVEC),%a0@-/*copy exception format/vector/sr */
+	moveml	%sp@,%d1-%d5/%a0-%a2
+	lea	%sp@(32),%sp		/* space for 8 regs */
+	movel	%sp@+,%d0
+	addql	#4,%sp			/* orig d0 */
+	addl	%sp@+,%sp		/* stkadj */
+	addql	#8,%sp			/* remove exception */
+	movel	%sp,sw_ksp		/* save ksp */
+	subql	#8,sw_usp		/* set exception */
+	movel	sw_usp,%sp		/* restore usp */
+	rte
+.endm
+
+.macro RDUSP
+	movel	sw_usp,%a3
+.endm
+
+.macro WRUSP
+	movel	%a3,sw_usp
+.endm
+
+#else /* !CONFIG_COLDFIRE_SW_A7 */
+/*
+ * Modern ColdFire parts have separate supervisor and user stack
+ * pointers. Simple load and restore macros for this case.
+ */
+.macro SAVE_ALL_SYS
+	move	#0x2700,%sr		/* disable intrs */
+	clrl	%sp@-			/* stkadj */
+	movel	%d0,%sp@-		/* orig d0 */
+	movel	%d0,%sp@-		/* d0 */
+	lea	%sp@(-32),%sp		/* space for 8 regs */
+	moveml	%d1-%d5/%a0-%a2,%sp@
+.endm
+
+.macro SAVE_ALL_INT
+	move	#0x2700,%sr		/* disable intrs */
+	clrl	%sp@-			/* stkadj */
+	pea	-1:w			/* orig d0 */
+	movel	%d0,%sp@-		/* d0 */
+	lea	%sp@(-32),%sp		/* space for 8 regs */
+	moveml	%d1-%d5/%a0-%a2,%sp@
+.endm
+
+.macro RESTORE_USER
+	moveml	%sp@,%d1-%d5/%a0-%a2
+	lea	%sp@(32),%sp		/* space for 8 regs */
+	movel	%sp@+,%d0
+	addql	#4,%sp			/* orig d0 */
+	addl	%sp@+,%sp		/* stkadj */
+	rte
+.endm
+
+.macro RDUSP
+	/*move	%usp,%a3*/
+	.word	0x4e6b
+.endm
+
+.macro WRUSP
+	/*move	%a3,%usp*/
+	.word	0x4e63
+.endm
+
+#endif /* !CONFIG_COLDFIRE_SW_A7 */
+
+.macro SAVE_SWITCH_STACK
+	lea	%sp@(-24),%sp		/* 6 regs */
+	moveml	%a3-%a6/%d6-%d7,%sp@
+.endm
+
+.macro RESTORE_SWITCH_STACK
+	moveml	%sp@,%a3-%a6/%d6-%d7
+	lea	%sp@(24),%sp		/* 6 regs */
+.endm
+
+#else /* !CONFIG_COLDFIRE */
+
+/*
+ * All other types of m68k parts (68000, 680x0, CPU32) have the same
+ * entry and exit code.
+ */
+
+/*
+ * a -1 in the orig_d0 field signifies
+ * that the stack frame is NOT for syscall
+ */
+.macro SAVE_ALL_INT
+	clrl	%sp@-			/* stk_adj */
+	pea	-1:w			/* orig d0 */
+	movel	%d0,%sp@-		/* d0 */
+	moveml	%d1-%d5/%a0-%a2,%sp@-
+.endm
+
+.macro SAVE_ALL_SYS
+	clrl	%sp@-			/* stk_adj */
+	movel	%d0,%sp@-		/* orig d0 */
+	movel	%d0,%sp@-		/* d0 */
+	moveml	%d1-%d5/%a0-%a2,%sp@-
+.endm
+
+.macro RESTORE_ALL
+	moveml	%sp@+,%a0-%a2/%d1-%d5
+	movel	%sp@+,%d0
+	addql	#4,%sp			/* orig d0 */
+	addl	%sp@+,%sp		/* stk adj */
+	rte
+.endm
+
+
+.macro SAVE_SWITCH_STACK
+	moveml	%a3-%a6/%d6-%d7,%sp@-
+.endm
+
+.macro RESTORE_SWITCH_STACK
+	moveml	%sp@+,%a3-%a6/%d6-%d7
+.endm
+
+#endif /* !CONFIG_COLDFIRE */
+
+/*
+ * Register %a2 is reserved and set to current task on MMU enabled systems.
+ * Non-MMU systems do not reserve %a2 in this way, and this definition is
+ * not used for them.
+ */
+#ifdef CONFIG_MMU
+
+#define curptr a2
+
+#define GET_CURRENT(tmp) get_current tmp
+.macro get_current reg=%d0
+	movel	%sp,\reg
+	andl	#-THREAD_SIZE,\reg
+	movel	\reg,%curptr
+	movel	%curptr@,%curptr
+.endm
+
+#else
+
+#define GET_CURRENT(tmp)
+
+#endif /* CONFIG_MMU */
+
+#else /* C source */
+
+#define STR(X) STR1(X)
+#define STR1(X) #X
+
+#define SAVE_ALL_INT				\
+	"clrl	%%sp@-;"    /* stk_adj */	\
+	"pea	-1:w;"	    /* orig d0 = -1 */	\
+	"movel	%%d0,%%sp@-;" /* d0 */		\
+	"moveml	%%d1-%%d5/%%a0-%%a2,%%sp@-"
+
+#define GET_CURRENT(tmp) \
+	"movel	%%sp,"#tmp"\n\t" \
+	"andw	#-"STR(THREAD_SIZE)","#tmp"\n\t" \
+	"movel	"#tmp",%%a2\n\t" \
+	"movel	%%a2@,%%a2"
+
+#endif
+
+#endif /* __M68K_ENTRY_H */