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, 263 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/sun3xflop.h b/arch/m68k/include/asm/sun3xflop.h
new file mode 100644
index 000000000..bce8aabb5
--- /dev/null
+++ b/arch/m68k/include/asm/sun3xflop.h
@@ -0,0 +1,263 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* sun3xflop.h: Sun3/80 specific parts of the floppy driver.
+ *
+ * Derived partially from asm-sparc/floppy.h, which is:
+ *     Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ *
+ * Sun3x version 2/4/2000 Sam Creasey (sammy@sammy.net)
+ */
+
+#ifndef __ASM_SUN3X_FLOPPY_H
+#define __ASM_SUN3X_FLOPPY_H
+
+#include <linux/pgtable.h>
+#include <asm/page.h>
+#include <asm/irq.h>
+#include <asm/sun3x.h>
+
+/* default interrupt vector */
+#define SUN3X_FDC_IRQ 0x40
+
+/* some constants */
+#define FCR_TC 0x1
+#define FCR_EJECT 0x2
+#define FCR_MTRON 0x4
+#define FCR_DSEL1 0x8
+#define FCR_DSEL0 0x10
+
+/* We don't need no stinkin' I/O port allocation crap. */
+#undef release_region
+#undef request_region
+#define release_region(X, Y)	do { } while(0)
+#define request_region(X, Y, Z)	(1)
+
+struct sun3xflop_private {
+	volatile unsigned char *status_r;
+	volatile unsigned char *data_r;
+	volatile unsigned char *fcr_r;
+	volatile unsigned char *fvr_r;
+	unsigned char fcr;
+} sun3x_fdc;
+
+/* Super paranoid... */
+#undef HAVE_DISABLE_HLT
+
+/* Routines unique to each controller type on a Sun. */
+static unsigned char sun3x_82072_fd_inb(int port)
+{
+	static int once = 0;
+//	udelay(5);
+	switch(port & 7) {
+	default:
+		pr_crit("floppy: Asked to read unknown port %d\n", port);
+		panic("floppy: Port bolixed.");
+	case 4: /* FD_STATUS */
+		return (*sun3x_fdc.status_r) & ~STATUS_DMA;
+	case 5: /* FD_DATA */
+		return (*sun3x_fdc.data_r);
+	case 7: /* FD_DIR */
+		/* ugly hack, I can't find a way to actually detect the disk */
+		if(!once) {
+			once = 1;
+			return 0x80;
+		}
+		return 0;
+	};
+	panic("sun_82072_fd_inb: How did I get here?");
+}
+
+static void sun3x_82072_fd_outb(unsigned char value, int port)
+{
+//	udelay(5);
+	switch(port & 7) {
+	default:
+		pr_crit("floppy: Asked to write to unknown port %d\n", port);
+		panic("floppy: Port bolixed.");
+	case 2: /* FD_DOR */
+		/* Oh geese, 82072 on the Sun has no DOR register,
+		 * so we make do with taunting the FCR.
+		 *
+		 * ASSUMPTIONS:  There will only ever be one floppy
+		 *               drive attached to a Sun controller
+		 *               and it will be at drive zero.
+		 */
+
+	{
+		unsigned char fcr = sun3x_fdc.fcr;
+
+		if(value & 0x10) {
+			fcr |= (FCR_DSEL0 | FCR_MTRON);
+		} else
+			fcr &= ~(FCR_DSEL0 | FCR_MTRON);
+
+
+		if(fcr != sun3x_fdc.fcr) {
+			*(sun3x_fdc.fcr_r) = fcr;
+			sun3x_fdc.fcr = fcr;
+		}
+	}
+		break;
+	case 5: /* FD_DATA */
+		*(sun3x_fdc.data_r) = value;
+		break;
+	case 7: /* FD_DCR */
+		*(sun3x_fdc.status_r) = value;
+		break;
+	case 4: /* FD_STATUS */
+		*(sun3x_fdc.status_r) = value;
+		break;
+	}
+	return;
+}
+
+
+asmlinkage irqreturn_t sun3xflop_hardint(int irq, void *dev_id)
+{
+	register unsigned char st;
+
+#undef TRACE_FLPY_INT
+#define NO_FLOPPY_ASSEMBLER
+
+#ifdef TRACE_FLPY_INT
+	static int calls=0;
+	static int bytes=0;
+	static int dma_wait=0;
+#endif
+	if(!doing_pdma) {
+		floppy_interrupt(irq, dev_id);
+		return IRQ_HANDLED;
+	}
+
+//	pr_info("doing pdma\n");// st %x\n", sun_fdc->status_82072);
+
+#ifdef TRACE_FLPY_INT
+	if(!calls)
+		bytes = virtual_dma_count;
+#endif
+
+	{
+		register int lcount;
+		register char *lptr;
+
+		for(lcount=virtual_dma_count, lptr=virtual_dma_addr;
+		    lcount; lcount--, lptr++) {
+/*			st=fd_inb(virtual_dma_port+4) & 0x80 ;  */
+			st = *(sun3x_fdc.status_r);
+/*			if(st != 0xa0)                  */
+/*				break;                  */
+
+			if((st & 0x80) == 0) {
+				virtual_dma_count = lcount;
+				virtual_dma_addr = lptr;
+				return IRQ_HANDLED;
+			}
+
+			if((st & 0x20) == 0)
+				break;
+
+			if(virtual_dma_mode)
+/*				fd_outb(*lptr, virtual_dma_port+5); */
+				*(sun3x_fdc.data_r) = *lptr;
+			else
+/*				*lptr = fd_inb(virtual_dma_port+5); */
+				*lptr = *(sun3x_fdc.data_r);
+		}
+
+		virtual_dma_count = lcount;
+		virtual_dma_addr = lptr;
+/*		st = fd_inb(virtual_dma_port+4);   */
+		st = *(sun3x_fdc.status_r);
+	}
+
+#ifdef TRACE_FLPY_INT
+	calls++;
+#endif
+//	pr_info("st=%02x\n", st);
+	if(st == 0x20)
+		return IRQ_HANDLED;
+	if(!(st & 0x20)) {
+		virtual_dma_residue += virtual_dma_count;
+		virtual_dma_count=0;
+		doing_pdma = 0;
+
+#ifdef TRACE_FLPY_INT
+		pr_info("count=%x, residue=%x calls=%d bytes=%x dma_wait=%d\n",
+			virtual_dma_count, virtual_dma_residue, calls, bytes,
+			dma_wait);
+		calls = 0;
+		dma_wait=0;
+#endif
+
+		floppy_interrupt(irq, dev_id);
+		return IRQ_HANDLED;
+	}
+
+
+#ifdef TRACE_FLPY_INT
+	if(!virtual_dma_count)
+		dma_wait++;
+#endif
+	return IRQ_HANDLED;
+}
+
+static int sun3xflop_request_irq(void)
+{
+	static int once = 0;
+	int error;
+
+	if(!once) {
+		once = 1;
+		error = request_irq(FLOPPY_IRQ, sun3xflop_hardint,
+				    0, "floppy", NULL);
+		return ((error == 0) ? 0 : -1);
+	} else return 0;
+}
+
+static void __init floppy_set_flags(int *ints,int param, int param2);
+
+static int sun3xflop_init(void)
+{
+	if(FLOPPY_IRQ < 0x40)
+		FLOPPY_IRQ = SUN3X_FDC_IRQ;
+
+	sun3x_fdc.status_r = (volatile unsigned char *)SUN3X_FDC;
+	sun3x_fdc.data_r  = (volatile unsigned char *)(SUN3X_FDC+1);
+	sun3x_fdc.fcr_r = (volatile unsigned char *)SUN3X_FDC_FCR;
+	sun3x_fdc.fvr_r = (volatile unsigned char *)SUN3X_FDC_FVR;
+	sun3x_fdc.fcr = 0;
+
+	/* Last minute sanity check... */
+	if(*sun3x_fdc.status_r == 0xff) {
+		return -1;
+	}
+
+	*sun3x_fdc.fvr_r = FLOPPY_IRQ;
+
+	*sun3x_fdc.fcr_r = FCR_TC;
+	udelay(10);
+	*sun3x_fdc.fcr_r = 0;
+
+	/* Success... */
+	floppy_set_flags(NULL, 1, FD_BROKEN_DCL); // I don't know how to detect this.
+	allowed_drive_mask = 0x01;
+	return (int) SUN3X_FDC;
+}
+
+/* I'm not precisely sure this eject routine works */
+static int sun3x_eject(void)
+{
+	if(MACH_IS_SUN3X) {
+
+		sun3x_fdc.fcr |= (FCR_DSEL0 | FCR_EJECT);
+		*(sun3x_fdc.fcr_r) = sun3x_fdc.fcr;
+		udelay(10);
+		sun3x_fdc.fcr &= ~(FCR_DSEL0 | FCR_EJECT);
+		*(sun3x_fdc.fcr_r) = sun3x_fdc.fcr;
+	}
+
+	return 0;
+}
+
+#define fd_eject(drive) sun3x_eject()
+
+#endif /* !(__ASM_SUN3X_FLOPPY_H) */