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, 177 insertions, 0 deletions

diff --git a/arch/sparc/lib/checksum_64.S b/arch/sparc/lib/checksum_64.S
new file mode 100644
index 000000000..9700ef173
--- /dev/null
+++ b/arch/sparc/lib/checksum_64.S
@@ -0,0 +1,177 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* checksum.S: Sparc V9 optimized checksum code.
+ *
+ *  Copyright(C) 1995 Linus Torvalds
+ *  Copyright(C) 1995 Miguel de Icaza
+ *  Copyright(C) 1996, 2000 David S. Miller
+ *  Copyright(C) 1997 Jakub Jelinek
+ *
+ * derived from:
+ *	Linux/Alpha checksum c-code
+ *      Linux/ix86 inline checksum assembly
+ *      RFC1071 Computing the Internet Checksum (esp. Jacobsons m68k code)
+ *	David Mosberger-Tang for optimized reference c-code
+ *	BSD4.4 portable checksum routine
+ */
+
+#include <asm/export.h>
+	.text
+
+csum_partial_fix_alignment:
+	/* We checked for zero length already, so there must be
+	 * at least one byte.
+	 */
+	be,pt		%icc, 1f
+	 nop
+	ldub		[%o0 + 0x00], %o4
+	add		%o0, 1, %o0
+	sub		%o1, 1, %o1
+1:	andcc		%o0, 0x2, %g0
+	be,pn		%icc, csum_partial_post_align
+	 cmp		%o1, 2
+	blu,pn		%icc, csum_partial_end_cruft
+	 nop
+	lduh		[%o0 + 0x00], %o5
+	add		%o0, 2, %o0
+	sub		%o1, 2, %o1
+	ba,pt		%xcc, csum_partial_post_align
+	 add		%o5, %o4, %o4
+
+	.align		32
+	.globl		csum_partial
+	.type		csum_partial,#function
+	EXPORT_SYMBOL(csum_partial)
+csum_partial:		/* %o0=buff, %o1=len, %o2=sum */
+	prefetch	[%o0 + 0x000], #n_reads
+	clr		%o4
+	prefetch	[%o0 + 0x040], #n_reads
+	brz,pn		%o1, csum_partial_finish
+	 andcc		%o0, 0x3, %g0
+
+	/* We "remember" whether the lowest bit in the address
+	 * was set in %g7.  Because if it is, we have to swap
+	 * upper and lower 8 bit fields of the sum we calculate.
+	*/
+	bne,pn		%icc, csum_partial_fix_alignment
+	 andcc		%o0, 0x1, %g7
+
+csum_partial_post_align:
+	prefetch	[%o0 + 0x080], #n_reads
+	andncc		%o1, 0x3f, %o3
+
+	prefetch	[%o0 + 0x0c0], #n_reads
+	sub		%o1, %o3, %o1
+	brz,pn		%o3, 2f
+	 prefetch	[%o0 + 0x100], #n_reads
+
+	/* So that we don't need to use the non-pairing
+	 * add-with-carry instructions we accumulate 32-bit
+	 * values into a 64-bit register.  At the end of the
+	 * loop we fold it down to 32-bits and so on.
+	 */
+	prefetch	[%o0 + 0x140], #n_reads
+1:	lduw		[%o0 + 0x00], %o5
+	lduw		[%o0 + 0x04], %g1
+	lduw		[%o0 + 0x08], %g2
+	add		%o4, %o5, %o4
+	lduw		[%o0 + 0x0c], %g3
+	add		%o4, %g1, %o4
+	lduw		[%o0 + 0x10], %o5
+	add		%o4, %g2, %o4
+	lduw		[%o0 + 0x14], %g1
+	add		%o4, %g3, %o4
+	lduw		[%o0 + 0x18], %g2
+	add		%o4, %o5, %o4
+	lduw		[%o0 + 0x1c], %g3
+	add		%o4, %g1, %o4
+	lduw		[%o0 + 0x20], %o5
+	add		%o4, %g2, %o4
+	lduw		[%o0 + 0x24], %g1
+	add		%o4, %g3, %o4
+	lduw		[%o0 + 0x28], %g2
+	add		%o4, %o5, %o4
+	lduw		[%o0 + 0x2c], %g3
+	add		%o4, %g1, %o4
+	lduw		[%o0 + 0x30], %o5
+	add		%o4, %g2, %o4
+	lduw		[%o0 + 0x34], %g1
+	add		%o4, %g3, %o4
+	lduw		[%o0 + 0x38], %g2
+	add		%o4, %o5, %o4
+	lduw		[%o0 + 0x3c], %g3
+	add		%o4, %g1, %o4
+	prefetch	[%o0 + 0x180], #n_reads
+	add		%o4, %g2, %o4
+	subcc		%o3, 0x40, %o3
+	add		%o0, 0x40, %o0
+	bne,pt		%icc, 1b
+	 add		%o4, %g3, %o4
+
+2:	and		%o1, 0x3c, %o3
+	brz,pn		%o3, 2f
+	 sub		%o1, %o3, %o1
+1:	lduw		[%o0 + 0x00], %o5
+	subcc		%o3, 0x4, %o3
+	add		%o0, 0x4, %o0
+	bne,pt		%icc, 1b
+	 add		%o4, %o5, %o4
+
+2:
+	/* fold 64-->32 */
+	srlx		%o4, 32, %o5
+	srl		%o4, 0, %o4
+	add		%o4, %o5, %o4
+	srlx		%o4, 32, %o5
+	srl		%o4, 0, %o4
+	add		%o4, %o5, %o4
+
+	/* fold 32-->16 */
+	sethi		%hi(0xffff0000), %g1
+	srl		%o4, 16, %o5
+	andn		%o4, %g1, %g2
+	add		%o5, %g2, %o4
+	srl		%o4, 16, %o5
+	andn		%o4, %g1, %g2
+	add		%o5, %g2, %o4
+
+csum_partial_end_cruft:
+	/* %o4 has the 16-bit sum we have calculated so-far.  */
+	cmp		%o1, 2
+	blu,pt		%icc, 1f
+	 nop
+	lduh		[%o0 + 0x00], %o5
+	sub		%o1, 2, %o1
+	add		%o0, 2, %o0
+	add		%o4, %o5, %o4
+1:	brz,pt		%o1, 1f
+	 nop
+	ldub		[%o0 + 0x00], %o5
+	sub		%o1, 1, %o1
+	add		%o0, 1, %o0
+	sllx		%o5, 8, %o5
+	add		%o4, %o5, %o4
+1:
+	/* fold 32-->16 */
+	sethi		%hi(0xffff0000), %g1
+	srl		%o4, 16, %o5
+	andn		%o4, %g1, %g2
+	add		%o5, %g2, %o4
+	srl		%o4, 16, %o5
+	andn		%o4, %g1, %g2
+	add		%o5, %g2, %o4
+
+1:	brz,pt		%g7, 1f
+	 nop
+
+	/* We started with an odd byte, byte-swap the result.  */
+	srl		%o4, 8, %o5
+	and		%o4, 0xff, %g1
+	sll		%g1, 8, %g1
+	or		%o5, %g1, %o4
+
+1:	addcc		%o2, %o4, %o2
+	addc		%g0, %o2, %o2
+
+csum_partial_finish:
+	retl
+	 srl		%o2, 0, %o0