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, 205 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/reloc_32.S b/arch/powerpc/kernel/reloc_32.S
new file mode 100644
index 000000000..0508c14b4
--- /dev/null
+++ b/arch/powerpc/kernel/reloc_32.S
@@ -0,0 +1,205 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Code to process dynamic relocations for PPC32.
+ *
+ * Copyrights (C) IBM Corporation, 2011.
+ *	Author: Suzuki Poulose <suzuki@in.ibm.com>
+ *
+ *  - Based on ppc64 code - reloc_64.S
+ */
+
+#include <asm/ppc_asm.h>
+
+/* Dynamic section table entry tags */
+DT_RELA = 7			/* Tag for Elf32_Rela section */
+DT_RELASZ = 8			/* Size of the Rela relocs */
+DT_RELAENT = 9			/* Size of one Rela reloc entry */
+
+STN_UNDEF = 0			/* Undefined symbol index */
+STB_LOCAL = 0			/* Local binding for the symbol */
+
+R_PPC_ADDR16_LO = 4		/* Lower half of (S+A) */
+R_PPC_ADDR16_HI = 5		/* Upper half of (S+A) */
+R_PPC_ADDR16_HA = 6		/* High Adjusted (S+A) */
+R_PPC_RELATIVE = 22
+
+/*
+ * r3 = desired final address
+ */
+
+_GLOBAL(relocate)
+
+	mflr	r0		/* Save our LR */
+	bcl	20,31,$+4	/* Find our current runtime address */
+0:	mflr	r12		/* Make it accessible */
+	mtlr	r0
+
+	lwz	r11, (p_dyn - 0b)(r12)
+	add	r11, r11, r12	/* runtime address of .dynamic section */
+	lwz	r9, (p_rela - 0b)(r12)
+	add	r9, r9, r12	/* runtime address of .rela.dyn section */
+	lwz	r10, (p_st - 0b)(r12)
+	add	r10, r10, r12	/* runtime address of _stext section */
+	lwz	r13, (p_sym - 0b)(r12)
+	add	r13, r13, r12	/* runtime address of .dynsym section */
+
+	/*
+	 * Scan the dynamic section for RELA, RELASZ entries
+	 */
+	li	r6, 0
+	li	r7, 0
+	li	r8, 0
+1:	lwz	r5, 0(r11)	/* ELF_Dyn.d_tag */
+	cmpwi	r5, 0		/* End of ELF_Dyn[] */
+	beq	eodyn
+	cmpwi	r5, DT_RELA
+	bne	relasz
+	lwz	r7, 4(r11)	/* r7 = rela.link */
+	b	skip
+relasz:
+	cmpwi	r5, DT_RELASZ
+	bne	relaent
+	lwz	r8, 4(r11)	/* r8 = Total Rela relocs size */
+	b	skip
+relaent:
+	cmpwi	r5, DT_RELAENT
+	bne	skip
+	lwz	r6, 4(r11)	/* r6 = Size of one Rela reloc */
+skip:
+	addi	r11, r11, 8
+	b	1b
+eodyn:				/* End of Dyn Table scan */
+
+	/* Check if we have found all the entries */
+	cmpwi	r7, 0
+	beq	done
+	cmpwi	r8, 0
+	beq	done
+	cmpwi	r6, 0
+	beq	done
+
+
+	/*
+	 * Work out the current offset from the link time address of .rela
+	 * section.
+	 *  cur_offset[r7] = rela.run[r9] - rela.link [r7]
+	 *  _stext.link[r12] = _stext.run[r10] - cur_offset[r7]
+	 *  final_offset[r3] = _stext.final[r3] - _stext.link[r12]
+	 */
+	subf	r7, r7, r9	/* cur_offset */
+	subf	r12, r7, r10
+	subf	r3, r12, r3	/* final_offset */
+
+	subf	r8, r6, r8	/* relaz -= relaent */
+	/*
+	 * Scan through the .rela table and process each entry
+	 * r9	- points to the current .rela table entry
+	 * r13	- points to the symbol table
+	 */
+
+	/*
+	 * Check if we have a relocation based on symbol
+	 * r5 will hold the value of the symbol.
+	 */
+applyrela:
+	lwz	r4, 4(r9)		/* r4 = rela.r_info */
+	srwi	r5, r4, 8		/* ELF32_R_SYM(r_info) */
+	cmpwi	r5, STN_UNDEF	/* sym == STN_UNDEF ? */
+	beq	get_type	/* value = 0 */
+	/* Find the value of the symbol at index(r5) */
+	slwi	r5, r5, 4		/* r5 = r5 * sizeof(Elf32_Sym) */
+	add	r12, r13, r5	/* r12 = &__dyn_sym[Index] */
+
+	/*
+	 * GNU ld has a bug, where dynamic relocs based on
+	 * STB_LOCAL symbols, the value should be assumed
+	 * to be zero. - Alan Modra
+	 */
+	/* XXX: Do we need to check if we are using GNU ld ? */
+	lbz	r5, 12(r12)	/* r5 = dyn_sym[Index].st_info */
+	extrwi	r5, r5, 4, 24	/* r5 = ELF32_ST_BIND(r5) */
+	cmpwi	r5, STB_LOCAL	/* st_value = 0, ld bug */
+	beq	get_type	/* We have r5 = 0 */
+	lwz	r5, 4(r12)	/* r5 = __dyn_sym[Index].st_value */
+
+get_type:
+	/* Load the relocation type to r4 */
+	extrwi	r4, r4, 8, 24	/* r4 = ELF32_R_TYPE(r_info) = ((char*)r4)[3] */
+
+	/* R_PPC_RELATIVE */
+	cmpwi	r4, R_PPC_RELATIVE
+	bne	hi16
+	lwz	r4, 0(r9)	/* r_offset */
+	lwz	r0, 8(r9)	/* r_addend */
+	add	r0, r0, r3	/* final addend */
+	stwx	r0, r4, r7	/* memory[r4+r7]) = (u32)r0 */
+	b	nxtrela		/* continue */
+
+	/* R_PPC_ADDR16_HI */
+hi16:
+	cmpwi	r4, R_PPC_ADDR16_HI
+	bne	ha16
+	lwz	r4, 0(r9)	/* r_offset */
+	lwz	r0, 8(r9)	/* r_addend */
+	add	r0, r0, r3
+	add	r0, r0, r5	/* r0 = (S+A+Offset) */
+	extrwi	r0, r0, 16, 0	/* r0 = (r0 >> 16) */
+	b	store_half
+
+	/* R_PPC_ADDR16_HA */
+ha16:
+	cmpwi	r4, R_PPC_ADDR16_HA
+	bne	lo16
+	lwz	r4, 0(r9)	/* r_offset */
+	lwz	r0, 8(r9)	/* r_addend */
+	add	r0, r0, r3
+	add	r0, r0, r5	/* r0 = (S+A+Offset) */
+	extrwi	r5, r0, 1, 16	/* Extract bit 16 */
+	extrwi	r0, r0, 16, 0	/* r0 = (r0 >> 16) */
+	add	r0, r0, r5	/* Add it to r0 */
+	b	store_half
+
+	/* R_PPC_ADDR16_LO */
+lo16:
+	cmpwi	r4, R_PPC_ADDR16_LO
+	bne	unknown_type
+	lwz	r4, 0(r9)	/* r_offset */
+	lwz	r0, 8(r9)	/* r_addend */
+	add	r0, r0, r3
+	add	r0, r0, r5	/* r0 = (S+A+Offset) */
+	extrwi	r0, r0, 16, 16	/* r0 &= 0xffff */
+	/* Fall through to */
+
+	/* Store half word */
+store_half:
+	sthx	r0, r4, r7	/* memory[r4+r7] = (u16)r0 */
+
+nxtrela:
+	/*
+	 * We have to flush the modified instructions to the
+	 * main storage from the d-cache. And also, invalidate the
+	 * cached instructions in i-cache which has been modified.
+	 *
+	 * We delay the sync / isync operation till the end, since
+	 * we won't be executing the modified instructions until
+	 * we return from here.
+	 */
+	dcbst	r4,r7
+	sync			/* Ensure the data is flushed before icbi */
+	icbi	r4,r7
+unknown_type:
+	cmpwi	r8, 0		/* relasz = 0 ? */
+	ble	done
+	add	r9, r9, r6	/* move to next entry in the .rela table */
+	subf	r8, r6, r8	/* relasz -= relaent */
+	b	applyrela
+
+done:
+	sync			/* Wait for the flush to finish */
+	isync			/* Discard prefetched instructions */
+	blr
+
+p_dyn:		.long	__dynamic_start - 0b
+p_rela:		.long	__rela_dyn_start - 0b
+p_sym:		.long	__dynamic_symtab - 0b
+p_st:		.long	_stext - 0b