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, 247 insertions, 0 deletions

diff --git a/arch/sh/kernel/cpu/sh2a/entry.S b/arch/sh/kernel/cpu/sh2a/entry.S
new file mode 100644
index 000000000..9f11fc8b5
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh2a/entry.S
@@ -0,0 +1,247 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * arch/sh/kernel/cpu/sh2a/entry.S
+ *
+ * The SH-2A exception entry
+ *
+ * Copyright (C) 2008 Yoshinori Sato
+ * Based on arch/sh/kernel/cpu/sh2/entry.S
+ */
+
+#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <cpu/mmu_context.h>
+#include <asm/unistd.h>
+#include <asm/errno.h>
+#include <asm/page.h>
+	
+/* Offsets to the stack */
+OFF_R0  =  0		/* Return value. New ABI also arg4 */
+OFF_R1  =  4     	/* New ABI: arg5 */
+OFF_R2  =  8     	/* New ABI: arg6 */
+OFF_R3  =  12     	/* New ABI: syscall_nr */
+OFF_R4  =  16     	/* New ABI: arg0 */
+OFF_R5  =  20     	/* New ABI: arg1 */
+OFF_R6  =  24     	/* New ABI: arg2 */
+OFF_R7  =  28     	/* New ABI: arg3 */
+OFF_SP	=  (15*4)
+OFF_PC  =  (16*4)
+OFF_SR	=  (16*4+2*4)
+OFF_TRA	=  (16*4+6*4)
+
+#include <asm/entry-macros.S>
+
+ENTRY(exception_handler)
+	! stack
+	! r0 <- point sp
+	! r1
+	! pc
+	! sr
+	! r0 = temporary
+	! r1 = vector (pseudo EXPEVT / INTEVT / TRA)
+	mov.l	r2,@-sp
+	cli
+	mov.l	$cpu_mode,r2
+	bld.b	#6,@(0,r2)	!previus SR.MD
+	bst.b	#6,@(4*4,r15)	!set cpu mode to SR.MD
+	bt	1f
+	! switch to kernel mode
+	bset.b	#6,@(0,r2)	!set SR.MD
+	mov.l	$current_thread_info,r2
+	mov.l	@r2,r2
+	mov	#(THREAD_SIZE >> 8),r0
+	shll8	r0
+	add	r2,r0		! r0 = kernel stack tail
+	mov	r15,r2		! r2 = user stack top
+	mov	r0,r15		! switch kernel stack
+	mov.l	r1,@-r15	! TRA
+	sts.l	macl, @-r15
+	sts.l	mach, @-r15
+	stc.l	gbr, @-r15
+	mov.l	@(4*4,r2),r0
+	mov.l	r0,@-r15	! original SR
+	sts.l	pr,@-r15
+	mov.l	@(3*4,r2),r0
+	mov.l	r0,@-r15	! original PC
+	mov	r2,r0
+	add	#(3+2)*4,r0	! rewind r0 - r3 + exception frame
+	lds	r0,pr		! pr = original SP
+	movmu.l	r3,@-r15	! save regs
+	mov	r2,r8		! r8 =  previus stack top
+	mov	r1,r9		! r9 = interrupt vector
+	! restore previous stack
+	mov.l	@r8+,r2
+	mov.l	@r8+,r0
+	mov.l	@r8+,r1
+	bra	2f
+	 movml.l r2,@-r15
+1:
+	! in kernel exception
+	mov	r15,r2
+	add	#-((OFF_TRA + 4) - OFF_PC) + 5*4,r15
+	movmu.l	r3,@-r15
+	mov	r2,r8		! r8 = previous stack top
+	mov	r1,r9		! r9 = interrupt vector
+	! restore exception frame & regs
+	mov.l	@r8+,r2		! old R2
+	mov.l	@r8+,r0		! old R0
+	mov.l	@r8+,r1		! old R1
+	mov.l	@r8+,r10	! old PC
+	mov.l	@r8+,r11	! old SR
+	movml.l	r2,@-r15
+	mov.l	r10,@(OFF_PC,r15)
+	mov.l	r11,@(OFF_SR,r15)
+	mov.l	r8,@(OFF_SP,r15)	! save old sp
+	mov	r15,r8
+	add	#OFF_TRA + 4,r8
+	mov.l	r9,@-r8
+	sts.l	macl,@-r8
+	sts.l	mach,@-r8
+	stc.l	gbr,@-r8
+	add	#-4,r8
+	sts.l	pr,@-r8
+2:
+	! dispatch exception / interrupt
+	mov	#64,r8
+	cmp/hs	r8,r9
+	bt	interrupt_entry	! vec >= 64 is interrupt
+	mov	#31,r8
+	cmp/hs	r8,r9
+	bt	trap_entry	! 64 > vec >= 31  is trap
+
+	mov.l	4f,r8
+	mov	r9,r4
+	shll2	r9
+	add	r9,r8
+	mov.l	@r8,r8		! exception handler address
+	tst	r8,r8
+	bf	3f
+	mov.l	8f,r8		! unhandled exception
+3:
+	mov.l	5f,r10
+	jmp	@r8
+	 lds	r10,pr
+
+interrupt_entry:
+	mov	r9,r4
+	mov	r15,r5
+	mov.l	7f,r8
+	mov.l	6f,r9
+	jmp	@r8
+	 lds	r9,pr
+
+	.align	2
+4:	.long	exception_handling_table
+5:	.long	ret_from_exception
+6:	.long	ret_from_irq
+7:	.long	do_IRQ
+8:	.long	exception_error
+
+trap_entry:
+	mov	#0x30,r8
+	cmp/ge	r8,r9		! vector 0x1f-0x2f is systemcall
+	bt	1f
+	mov     #0x1f,r9	! convert to unified SH2/3/4 trap number
+1:	
+	shll2	r9			! TRA
+	bra	system_call	! jump common systemcall entry
+	 mov	r9,r8
+	
+#if defined(CONFIG_SH_STANDARD_BIOS)
+	/* Unwind the stack and jmp to the debug entry */
+ENTRY(sh_bios_handler)
+	mov	r15,r0
+	add	#(22-4)*4-4,r0
+	ldc.l	@r0+,gbr
+	lds.l	@r0+,mach
+	lds.l	@r0+,macl
+	mov	r15,r0
+	mov.l	@(OFF_SP,r0),r1
+	mov.l	@(OFF_SR,r2),r3
+	mov.l	r3,@-r1
+	mov.l	@(OFF_SP,r2),r3
+	mov.l	r3,@-r1
+	mov	r15,r0
+	add	#(22-4)*4-8,r0
+	mov.l	1f,r2
+	mov.l	@r2,r2
+	stc	sr,r3
+	mov.l	r2,@r0
+	mov.l	r3,@(4,r0)
+	mov.l	r1,@(8,r0)
+	movml.l	@r15+,r14
+	add	#8,r15
+	lds.l	@r15+, pr
+	mov.l	@r15+,r15
+	rte
+	 nop
+	.align	2
+1:	.long	gdb_vbr_vector
+#endif /* CONFIG_SH_STANDARD_BIOS */
+
+ENTRY(address_error_trap_handler)
+	mov	r15,r4				! regs
+	mov.l	@(OFF_PC,r15),r6		! pc
+	mov.l	1f,r0
+	jmp	@r0
+	 mov	#0,r5				! writeaccess is unknown
+
+	.align	2
+1:	.long	do_address_error
+
+restore_all:
+	stc	sr,r0
+	or	#0xf0,r0
+	ldc	r0,sr				! all interrupt block (same BL = 1)
+	! restore special register
+	! overlap exception frame
+	mov	r15,r0
+	add	#17*4,r0
+	lds.l	@r0+,pr
+	add	#4,r0
+	ldc.l	@r0+,gbr
+	lds.l	@r0+,mach
+	lds.l	@r0+,macl
+	mov	r15,r0
+	mov.l	$cpu_mode,r2
+	bld.b	#6,@(OFF_SR,r15)
+	bst.b	#6,@(0,r2)			! save CPU mode
+	mov.l	@(OFF_SR,r0),r1
+	shll2	r1
+	shlr2	r1				! clear MD bit
+	mov.l	@(OFF_SP,r0),r2
+	add	#-8,r2
+	mov.l	r2,@(OFF_SP,r0)			! point exception frame top
+	mov.l	r1,@(4,r2)			! set sr
+	mov.l	@(OFF_PC,r0),r1
+	mov.l	r1,@r2				! set pc
+	get_current_thread_info r0, r1
+	mov.l	$current_thread_info,r1
+	mov.l	r0,@r1
+	movml.l	@r15+,r14
+	mov.l	@r15,r15
+	rte
+	 nop
+
+	.align 2
+$current_thread_info:
+	.long	__current_thread_info
+$cpu_mode:	
+	.long	__cpu_mode
+		
+! common exception handler
+#include "../../entry-common.S"
+	
+	.data
+! cpu operation mode 
+! bit30 = MD (compatible SH3/4)
+__cpu_mode:
+	.long	0x40000000
+		
+	.section	.bss
+__current_thread_info:
+	.long	0
+
+ENTRY(exception_handling_table)
+	.space	4*32