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, 329 insertions, 0 deletions

diff --git a/drivers/net/arcnet/com20020_cs.c b/drivers/net/arcnet/com20020_cs.c
new file mode 100644
index 000000000..dc3253b31
--- /dev/null
+++ b/drivers/net/arcnet/com20020_cs.c
@@ -0,0 +1,329 @@
+/*
+ * Linux ARCnet driver - COM20020 PCMCIA support
+ *
+ * Written 1994-1999 by Avery Pennarun,
+ *    based on an ISA version by David Woodhouse.
+ * Derived from ibmtr_cs.c by Steve Kipisz (pcmcia-cs 3.1.4)
+ *    which was derived from pcnet_cs.c by David Hinds.
+ * Some additional portions derived from skeleton.c by Donald Becker.
+ *
+ * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com)
+ *  for sponsoring the further development of this driver.
+ *
+ * **********************
+ *
+ * The original copyright of skeleton.c was as follows:
+ *
+ * skeleton.c Written 1993 by Donald Becker.
+ * Copyright 1993 United States Government as represented by the
+ * Director, National Security Agency.  This software may only be used
+ * and distributed according to the terms of the GNU General Public License as
+ * modified by SRC, incorporated herein by reference.
+ *
+ * **********************
+ * Changes:
+ * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
+ * - reorganize kmallocs in com20020_attach, checking all for failure
+ *   and releasing the previous allocations if one fails
+ * **********************
+ *
+ * For more details, see drivers/net/arcnet.c
+ *
+ * **********************
+ */
+
+#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/io.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+
+#include "arcdevice.h"
+#include "com20020.h"
+
+static void regdump(struct net_device *dev)
+{
+#ifdef DEBUG
+	int ioaddr = dev->base_addr;
+	int count;
+
+	netdev_dbg(dev, "register dump:\n");
+	for (count = 0; count < 16; count++) {
+		if (!(count % 16))
+			pr_cont("%04X:", ioaddr + count);
+		pr_cont(" %02X", arcnet_inb(ioaddr, count));
+	}
+	pr_cont("\n");
+
+	netdev_dbg(dev, "buffer0 dump:\n");
+	/* set up the address register */
+	count = 0;
+	arcnet_outb((count >> 8) | RDDATAflag | AUTOINCflag,
+		    ioaddr, COM20020_REG_W_ADDR_HI);
+	arcnet_outb(count & 0xff, ioaddr, COM20020_REG_W_ADDR_LO);
+
+	for (count = 0; count < 256 + 32; count++) {
+		if (!(count % 16))
+			pr_cont("%04X:", count);
+
+		/* copy the data */
+		pr_cont(" %02X", arcnet_inb(ioaddr, COM20020_REG_RW_MEMDATA));
+	}
+	pr_cont("\n");
+#endif
+}
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+static int node;
+static int timeout = 3;
+static int backplane;
+static int clockp;
+static int clockm;
+
+module_param(node, int, 0);
+module_param(timeout, int, 0);
+module_param(backplane, int, 0);
+module_param(clockp, int, 0);
+module_param(clockm, int, 0);
+
+MODULE_LICENSE("GPL");
+
+/*====================================================================*/
+
+static int com20020_config(struct pcmcia_device *link);
+static void com20020_release(struct pcmcia_device *link);
+
+static void com20020_detach(struct pcmcia_device *p_dev);
+
+/*====================================================================*/
+
+static int com20020_probe(struct pcmcia_device *p_dev)
+{
+	struct com20020_dev *info;
+	struct net_device *dev;
+	struct arcnet_local *lp;
+	int ret = -ENOMEM;
+
+	dev_dbg(&p_dev->dev, "com20020_attach()\n");
+
+	/* Create new network device */
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		goto fail_alloc_info;
+
+	dev = alloc_arcdev("");
+	if (!dev)
+		goto fail_alloc_dev;
+
+	lp = netdev_priv(dev);
+	lp->timeout = timeout;
+	lp->backplane = backplane;
+	lp->clockp = clockp;
+	lp->clockm = clockm & 3;
+	lp->hw.owner = THIS_MODULE;
+
+	/* fill in our module parameters as defaults */
+	arcnet_set_addr(dev, node);
+
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+	p_dev->resource[0]->end = 16;
+	p_dev->config_flags |= CONF_ENABLE_IRQ;
+
+	info->dev = dev;
+	p_dev->priv = info;
+
+	ret = com20020_config(p_dev);
+	if (ret)
+		goto fail_config;
+
+	return 0;
+
+fail_config:
+	free_arcdev(dev);
+fail_alloc_dev:
+	kfree(info);
+fail_alloc_info:
+	return ret;
+} /* com20020_attach */
+
+static void com20020_detach(struct pcmcia_device *link)
+{
+	struct com20020_dev *info = link->priv;
+	struct net_device *dev = info->dev;
+
+	dev_dbg(&link->dev, "detach...\n");
+
+	dev_dbg(&link->dev, "com20020_detach\n");
+
+	dev_dbg(&link->dev, "unregister...\n");
+
+	unregister_netdev(dev);
+
+	/* this is necessary because we register our IRQ separately
+	 * from card services.
+	 */
+	if (dev->irq)
+		free_irq(dev->irq, dev);
+
+	com20020_release(link);
+
+	/* Unlink device structure, free bits */
+	dev_dbg(&link->dev, "unlinking...\n");
+	if (link->priv) {
+		dev = info->dev;
+		if (dev) {
+			dev_dbg(&link->dev, "kfree...\n");
+			free_arcdev(dev);
+		}
+		dev_dbg(&link->dev, "kfree2...\n");
+		kfree(info);
+	}
+
+} /* com20020_detach */
+
+static int com20020_config(struct pcmcia_device *link)
+{
+	struct arcnet_local *lp;
+	struct com20020_dev *info;
+	struct net_device *dev;
+	int i, ret;
+	int ioaddr;
+
+	info = link->priv;
+	dev = info->dev;
+
+	dev_dbg(&link->dev, "config...\n");
+
+	dev_dbg(&link->dev, "com20020_config\n");
+
+	dev_dbg(&link->dev, "baseport1 is %Xh\n",
+		(unsigned int)link->resource[0]->start);
+
+	i = -ENODEV;
+	link->io_lines = 16;
+
+	if (!link->resource[0]->start) {
+		for (ioaddr = 0x100; ioaddr < 0x400; ioaddr += 0x10) {
+			link->resource[0]->start = ioaddr;
+			i = pcmcia_request_io(link);
+			if (i == 0)
+				break;
+		}
+	} else {
+		i = pcmcia_request_io(link);
+	}
+
+	if (i != 0) {
+		dev_dbg(&link->dev, "requestIO failed totally!\n");
+		goto failed;
+	}
+
+	ioaddr = dev->base_addr = link->resource[0]->start;
+	dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr);
+
+	dev_dbg(&link->dev, "request IRQ %d\n",
+		link->irq);
+	if (!link->irq) {
+		dev_dbg(&link->dev, "requestIRQ failed totally!\n");
+		goto failed;
+	}
+
+	dev->irq = link->irq;
+
+	ret = pcmcia_enable_device(link);
+	if (ret)
+		goto failed;
+
+	if (com20020_check(dev)) {
+		regdump(dev);
+		goto failed;
+	}
+
+	lp = netdev_priv(dev);
+	lp->card_name = "PCMCIA COM20020";
+	lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */
+
+	SET_NETDEV_DEV(dev, &link->dev);
+
+	i = com20020_found(dev, 0);	/* calls register_netdev */
+
+	if (i != 0) {
+		dev_notice(&link->dev,
+			   "com20020_found() failed\n");
+		goto failed;
+	}
+
+	netdev_dbg(dev, "port %#3lx, irq %d\n",
+		   dev->base_addr, dev->irq);
+	return 0;
+
+failed:
+	dev_dbg(&link->dev, "com20020_config failed...\n");
+	com20020_release(link);
+	return -ENODEV;
+} /* com20020_config */
+
+static void com20020_release(struct pcmcia_device *link)
+{
+	dev_dbg(&link->dev, "com20020_release\n");
+	pcmcia_disable_device(link);
+}
+
+static int com20020_suspend(struct pcmcia_device *link)
+{
+	struct com20020_dev *info = link->priv;
+	struct net_device *dev = info->dev;
+
+	if (link->open)
+		netif_device_detach(dev);
+
+	return 0;
+}
+
+static int com20020_resume(struct pcmcia_device *link)
+{
+	struct com20020_dev *info = link->priv;
+	struct net_device *dev = info->dev;
+
+	if (link->open) {
+		int ioaddr = dev->base_addr;
+		struct arcnet_local *lp = netdev_priv(dev);
+
+		arcnet_outb(lp->config | 0x80, ioaddr, COM20020_REG_W_CONFIG);
+		udelay(5);
+		arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG);
+	}
+
+	return 0;
+}
+
+static const struct pcmcia_device_id com20020_ids[] = {
+	PCMCIA_DEVICE_PROD_ID12("Contemporary Control Systems, Inc.",
+				"PCM20 Arcnet Adapter", 0x59991666, 0x95dfffaf),
+	PCMCIA_DEVICE_PROD_ID12("SoHard AG",
+				"SH ARC PCMCIA", 0xf8991729, 0x69dff0c7),
+	PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, com20020_ids);
+
+static struct pcmcia_driver com20020_cs_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "com20020_cs",
+	.probe		= com20020_probe,
+	.remove		= com20020_detach,
+	.id_table	= com20020_ids,
+	.suspend	= com20020_suspend,
+	.resume		= com20020_resume,
+};
+module_pcmcia_driver(com20020_cs_driver);