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, 277 insertions, 0 deletions

diff --git a/drivers/net/ethernet/i825xx/ether1.h b/drivers/net/ethernet/i825xx/ether1.h
new file mode 100644
index 000000000..3926e042f
--- /dev/null
+++ b/drivers/net/ethernet/i825xx/ether1.h
@@ -0,0 +1,277 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/drivers/acorn/net/ether1.h
+ *
+ *  Copyright (C) 1996 Russell King
+ *
+ *  Network driver for Acorn Ether1 cards.
+ */
+
+#ifndef _LINUX_ether1_H
+#define _LINUX_ether1_H
+
+#ifdef __ETHER1_C
+/* use 0 for production, 1 for verification, >2 for debug */
+#ifndef NET_DEBUG
+#define NET_DEBUG 0
+#endif
+
+#define priv(dev)	((struct ether1_priv *)netdev_priv(dev))
+
+/* Page register */
+#define REG_PAGE	(priv(dev)->base + 0x0000)
+
+/* Control register */
+#define REG_CONTROL	(priv(dev)->base + 0x0004)
+#define CTRL_RST	0x01
+#define CTRL_LOOPBACK	0x02
+#define CTRL_CA		0x04
+#define CTRL_ACK	0x08
+
+#define ETHER1_RAM	(priv(dev)->base + 0x2000)
+
+/* HW address */
+#define IDPROM_ADDRESS	(priv(dev)->base + 0x0024)
+
+struct ether1_priv {
+	void __iomem *base;
+	unsigned int tx_link;
+	unsigned int tx_head;
+	volatile unsigned int tx_tail;
+	volatile unsigned int rx_head;
+	volatile unsigned int rx_tail;
+	unsigned char bus_type;
+	unsigned char resetting;
+	unsigned char initialising : 1;
+	unsigned char restart      : 1;
+};
+
+#define I82586_NULL (-1)
+
+typedef struct { /* tdr */
+	unsigned short tdr_status;
+	unsigned short tdr_command;
+	unsigned short tdr_link;
+	unsigned short tdr_result;
+#define TDR_TIME	(0x7ff)
+#define TDR_SHORT	(1 << 12)
+#define TDR_OPEN	(1 << 13)
+#define TDR_XCVRPROB	(1 << 14)
+#define TDR_LNKOK	(1 << 15)
+} tdr_t;
+
+typedef struct { /* transmit */
+	unsigned short tx_status;
+	unsigned short tx_command;
+	unsigned short tx_link;
+	unsigned short tx_tbdoffset;
+} tx_t;
+
+typedef struct { /* tbd */
+	unsigned short tbd_opts;
+#define TBD_CNT		(0x3fff)
+#define TBD_EOL		(1 << 15)
+	unsigned short tbd_link;
+	unsigned short tbd_bufl;
+	unsigned short tbd_bufh;
+} tbd_t;
+
+typedef struct { /* rfd */
+	unsigned short rfd_status;
+#define RFD_NOEOF	(1 << 6)
+#define RFD_FRAMESHORT	(1 << 7)
+#define RFD_DMAOVRN	(1 << 8)
+#define RFD_NORESOURCES	(1 << 9)
+#define RFD_ALIGNERROR	(1 << 10)
+#define RFD_CRCERROR	(1 << 11)
+#define RFD_OK		(1 << 13)
+#define RFD_FDCONSUMED	(1 << 14)
+#define RFD_COMPLETE	(1 << 15)
+	unsigned short rfd_command;
+#define RFD_CMDSUSPEND	(1 << 14)
+#define RFD_CMDEL	(1 << 15)
+	unsigned short rfd_link;
+	unsigned short rfd_rbdoffset;
+	unsigned char  rfd_dest[6];
+	unsigned char  rfd_src[6];
+	unsigned short rfd_len;
+} rfd_t;
+
+typedef struct { /* rbd */
+	unsigned short rbd_status;
+#define RBD_ACNT	(0x3fff)
+#define RBD_ACNTVALID	(1 << 14)
+#define RBD_EOF		(1 << 15)
+	unsigned short rbd_link;
+	unsigned short rbd_bufl;
+	unsigned short rbd_bufh;
+	unsigned short rbd_len;
+} rbd_t;
+
+typedef struct { /* nop */
+	unsigned short nop_status;
+	unsigned short nop_command;
+	unsigned short nop_link;
+} nop_t;
+
+typedef struct { /* set multicast */
+	unsigned short mc_status;
+	unsigned short mc_command;
+	unsigned short mc_link;
+	unsigned short mc_cnt;
+	unsigned char  mc_addrs[1][6];
+} mc_t;
+
+typedef struct { /* set address */
+	unsigned short sa_status;
+	unsigned short sa_command;
+	unsigned short sa_link;
+	unsigned char  sa_addr[6];
+} sa_t;
+
+typedef struct { /* config command */
+	unsigned short cfg_status;
+	unsigned short cfg_command;
+	unsigned short cfg_link;
+	unsigned char  cfg_bytecnt;	/* size foll data: 4 - 12		 */
+	unsigned char  cfg_fifolim;	/* FIFO threshold			 */
+	unsigned char  cfg_byte8;
+#define CFG8_SRDY	(1 << 6)
+#define CFG8_SAVEBADF	(1 << 7)
+	unsigned char  cfg_byte9;
+#define CFG9_ADDRLEN(x)	(x)
+#define CFG9_ADDRLENBUF	(1 << 3)
+#define CFG9_PREAMB2	(0 << 4)
+#define CFG9_PREAMB4	(1 << 4)
+#define CFG9_PREAMB8	(2 << 4)
+#define CFG9_PREAMB16	(3 << 4)
+#define CFG9_ILOOPBACK	(1 << 6)
+#define CFG9_ELOOPBACK	(1 << 7)
+	unsigned char  cfg_byte10;
+#define CFG10_LINPRI(x)	(x)
+#define CFG10_ACR(x)	(x << 4)
+#define CFG10_BOFMET	(1 << 7)
+	unsigned char  cfg_ifs;
+	unsigned char  cfg_slotl;
+	unsigned char  cfg_byte13;
+#define CFG13_SLOTH(x)	(x)
+#define CFG13_RETRY(x)	(x << 4)
+	unsigned char  cfg_byte14;
+#define CFG14_PROMISC	(1 << 0)
+#define CFG14_DISBRD	(1 << 1)
+#define CFG14_MANCH	(1 << 2)
+#define CFG14_TNCRS	(1 << 3)
+#define CFG14_NOCRC	(1 << 4)
+#define CFG14_CRC16	(1 << 5)
+#define CFG14_BTSTF	(1 << 6)
+#define CFG14_FLGPAD	(1 << 7)
+	unsigned char  cfg_byte15;
+#define CFG15_CSTF(x)	(x)
+#define CFG15_ICSS	(1 << 3)
+#define CFG15_CDTF(x)	(x << 4)
+#define CFG15_ICDS	(1 << 7)
+	unsigned short cfg_minfrmlen;
+} cfg_t;
+
+typedef struct { /* scb */
+	unsigned short scb_status;	/* status of 82586			*/
+#define SCB_STRXMASK		(7 << 4)	/* Receive unit status		*/
+#define SCB_STRXIDLE		(0 << 4)	/* Idle				*/
+#define SCB_STRXSUSP		(1 << 4)	/* Suspended			*/
+#define SCB_STRXNRES		(2 << 4)	/* No resources			*/
+#define SCB_STRXRDY		(4 << 4)	/* Ready			*/
+#define SCB_STCUMASK		(7 << 8)	/* Command unit status		*/
+#define SCB_STCUIDLE		(0 << 8)	/* Idle				*/
+#define SCB_STCUSUSP		(1 << 8)	/* Suspended			*/
+#define SCB_STCUACTV		(2 << 8)	/* Active			*/
+#define SCB_STRNR		(1 << 12)	/* Receive unit not ready	*/
+#define SCB_STCNA		(1 << 13)	/* Command unit not ready	*/
+#define SCB_STFR		(1 << 14)	/* Frame received		*/
+#define SCB_STCX		(1 << 15)	/* Command completed		*/
+	unsigned short scb_command;	/* Next command				*/
+#define SCB_CMDRXSTART		(1 << 4)	/* Start (at rfa_offset)	*/
+#define SCB_CMDRXRESUME		(2 << 4)	/* Resume reception		*/
+#define SCB_CMDRXSUSPEND	(3 << 4)	/* Suspend reception		*/
+#define SCB_CMDRXABORT		(4 << 4)	/* Abort reception		*/
+#define SCB_CMDCUCSTART		(1 << 8)	/* Start (at cbl_offset)	*/
+#define SCB_CMDCUCRESUME	(2 << 8)	/* Resume execution		*/
+#define SCB_CMDCUCSUSPEND	(3 << 8)	/* Suspend execution		*/
+#define SCB_CMDCUCABORT		(4 << 8)	/* Abort execution		*/
+#define SCB_CMDACKRNR		(1 << 12)	/* Ack RU not ready		*/
+#define SCB_CMDACKCNA		(1 << 13)	/* Ack CU not ready		*/
+#define SCB_CMDACKFR		(1 << 14)	/* Ack Frame received		*/
+#define SCB_CMDACKCX		(1 << 15)	/* Ack Command complete		*/
+	unsigned short scb_cbl_offset;	/* Offset of first command unit		*/
+	unsigned short scb_rfa_offset;	/* Offset of first receive frame area	*/
+	unsigned short scb_crc_errors;	/* Properly aligned frame with CRC error*/
+	unsigned short scb_aln_errors;	/* Misaligned frames			*/
+	unsigned short scb_rsc_errors;	/* Frames lost due to no space		*/
+	unsigned short scb_ovn_errors;	/* Frames lost due to slow bus		*/
+} scb_t;
+
+typedef struct { /* iscp */
+	unsigned short iscp_busy;	/* set by CPU before CA			*/
+	unsigned short iscp_offset;	/* offset of SCB			*/
+	unsigned short iscp_basel;	/* base of SCB				*/
+	unsigned short iscp_baseh;
+} iscp_t;
+
+    /* this address must be 0xfff6 */
+typedef struct { /* scp */
+	unsigned short scp_sysbus;	/* bus size */
+#define SCP_SY_16BBUS	0x00
+#define SCP_SY_8BBUS	0x01
+	unsigned short scp_junk[2];	/* junk */
+	unsigned short scp_iscpl;	/* lower 16 bits of iscp */
+	unsigned short scp_iscph;	/* upper 16 bits of iscp */
+} scp_t;
+
+/* commands */
+#define CMD_NOP			0
+#define CMD_SETADDRESS		1
+#define CMD_CONFIG		2
+#define CMD_SETMULTICAST	3
+#define CMD_TX			4
+#define CMD_TDR			5
+#define CMD_DUMP		6
+#define CMD_DIAGNOSE		7
+
+#define CMD_MASK		7
+
+#define CMD_INTR		(1 << 13)
+#define CMD_SUSP		(1 << 14)
+#define CMD_EOL			(1 << 15)
+
+#define STAT_COLLISIONS		(15)
+#define STAT_COLLEXCESSIVE	(1 << 5)
+#define STAT_COLLAFTERTX	(1 << 6)
+#define STAT_TXDEFERRED		(1 << 7)
+#define STAT_TXSLOWDMA		(1 << 8)
+#define STAT_TXLOSTCTS		(1 << 9)
+#define STAT_NOCARRIER		(1 << 10)
+#define STAT_FAIL		(1 << 11)
+#define STAT_ABORTED		(1 << 12)
+#define STAT_OK			(1 << 13)
+#define STAT_BUSY		(1 << 14)
+#define STAT_COMPLETE		(1 << 15)
+#endif
+#endif
+
+/*
+ * Ether1 card definitions:
+ *
+ * FAST accesses:
+ *	+0	Page register
+ * 			16 pages
+ *	+4	Control
+ *			'1' = reset
+ *			'2' = loopback
+ *			'4' = CA
+ *			'8' = int ack
+ *
+ * RAM at address + 0x2000
+ * Pod. Prod id = 3
+ * Words after ID block [base + 8 words]
+ *	+0 pcb issue (0x0c and 0xf3 invalid)
+ *	+1 - +6 eth hw address
+ */