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, 302 insertions, 0 deletions

diff --git a/drivers/net/ethernet/8390/stnic.c b/drivers/net/ethernet/8390/stnic.c
new file mode 100644
index 000000000..bd89ca8a9
--- /dev/null
+++ b/drivers/net/ethernet/8390/stnic.c
@@ -0,0 +1,302 @@
+/* stnic.c : A SH7750 specific part of driver for NS DP83902A ST-NIC.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1999 kaz Kojima
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <mach-se/mach/se.h>
+#include <asm/machvec.h>
+#ifdef CONFIG_SH_STANDARD_BIOS
+#include <asm/sh_bios.h>
+#endif
+
+#include "8390.h"
+
+#define DRV_NAME "stnic"
+
+#define byte	unsigned char
+#define half	unsigned short
+#define word	unsigned int
+#define vbyte	volatile unsigned char
+#define vhalf	volatile unsigned short
+#define vword	volatile unsigned int
+
+#define STNIC_RUN	0x01	/* 1 == Run, 0 == reset. */
+
+#define START_PG	0	/* First page of TX buffer */
+#define STOP_PG		128	/* Last page +1 of RX ring */
+
+/* Alias */
+#define STNIC_CR	E8390_CMD
+#define PG0_RSAR0	EN0_RSARLO
+#define PG0_RSAR1	EN0_RSARHI
+#define PG0_RBCR0	EN0_RCNTLO
+#define PG0_RBCR1	EN0_RCNTHI
+
+#define CR_RRD		E8390_RREAD
+#define CR_RWR		E8390_RWRITE
+#define CR_PG0		E8390_PAGE0
+#define CR_STA		E8390_START
+#define CR_RDMA		E8390_NODMA
+
+/* FIXME! YOU MUST SET YOUR OWN ETHER ADDRESS.  */
+static byte stnic_eadr[6] =
+{0x00, 0xc0, 0x6e, 0x00, 0x00, 0x07};
+
+static struct net_device *stnic_dev;
+
+static void stnic_reset (struct net_device *dev);
+static void stnic_get_hdr (struct net_device *dev, struct e8390_pkt_hdr *hdr,
+			   int ring_page);
+static void stnic_block_input (struct net_device *dev, int count,
+			       struct sk_buff *skb , int ring_offset);
+static void stnic_block_output (struct net_device *dev, int count,
+				const unsigned char *buf, int start_page);
+
+static void stnic_init (struct net_device *dev);
+
+static u32 stnic_msg_enable;
+
+module_param_named(msg_enable, stnic_msg_enable, uint, 0444);
+MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)");
+
+/* SH7750 specific read/write io. */
+static inline void
+STNIC_DELAY (void)
+{
+  vword trash;
+  trash = *(vword *) 0xa0000000;
+  trash = *(vword *) 0xa0000000;
+  trash = *(vword *) 0xa0000000;
+}
+
+static inline byte
+STNIC_READ (int reg)
+{
+  byte val;
+
+  val = (*(vhalf *) (PA_83902 + ((reg) << 1)) >> 8) & 0xff;
+  STNIC_DELAY ();
+  return val;
+}
+
+static inline void
+STNIC_WRITE (int reg, byte val)
+{
+  *(vhalf *) (PA_83902 + ((reg) << 1)) = ((half) (val) << 8);
+  STNIC_DELAY ();
+}
+
+static int __init stnic_probe(void)
+{
+  struct net_device *dev;
+  struct ei_device *ei_local;
+  int err;
+
+  /* If we are not running on a SolutionEngine, give up now */
+  if (! MACH_SE)
+    return -ENODEV;
+
+  /* New style probing API */
+  dev = alloc_ei_netdev();
+  if (!dev)
+	return -ENOMEM;
+
+#ifdef CONFIG_SH_STANDARD_BIOS
+  sh_bios_get_node_addr (stnic_eadr);
+#endif
+  eth_hw_addr_set(dev, stnic_eadr);
+
+  /* Set the base address to point to the NIC, not the "real" base! */
+  dev->base_addr = 0x1000;
+  dev->irq = IRQ_STNIC;
+  dev->netdev_ops = &ei_netdev_ops;
+
+  /* Snarf the interrupt now.  There's no point in waiting since we cannot
+     share and the board will usually be enabled. */
+  err = request_irq (dev->irq, ei_interrupt, 0, DRV_NAME, dev);
+  if (err)  {
+	netdev_emerg(dev, " unable to get IRQ %d.\n", dev->irq);
+	free_netdev(dev);
+	return err;
+  }
+
+  ei_status.name = dev->name;
+  ei_status.word16 = 1;
+#ifdef __LITTLE_ENDIAN__
+  ei_status.bigendian = 0;
+#else
+  ei_status.bigendian = 1;
+#endif
+  ei_status.tx_start_page = START_PG;
+  ei_status.rx_start_page = START_PG + TX_PAGES;
+  ei_status.stop_page = STOP_PG;
+
+  ei_status.reset_8390 = &stnic_reset;
+  ei_status.get_8390_hdr = &stnic_get_hdr;
+  ei_status.block_input = &stnic_block_input;
+  ei_status.block_output = &stnic_block_output;
+
+  stnic_init (dev);
+  ei_local = netdev_priv(dev);
+  ei_local->msg_enable = stnic_msg_enable;
+
+  err = register_netdev(dev);
+  if (err) {
+    free_irq(dev->irq, dev);
+    free_netdev(dev);
+    return err;
+  }
+  stnic_dev = dev;
+
+  netdev_info(dev, "NS ST-NIC 83902A\n");
+
+  return 0;
+}
+
+static void
+stnic_reset (struct net_device *dev)
+{
+  struct ei_device *ei_local = netdev_priv(dev);
+
+  *(vhalf *) PA_83902_RST = 0;
+  udelay (5);
+  netif_warn(ei_local, hw, dev, "8390 reset done (%ld).\n", jiffies);
+  *(vhalf *) PA_83902_RST = ~0;
+  udelay (5);
+}
+
+static void
+stnic_get_hdr (struct net_device *dev, struct e8390_pkt_hdr *hdr,
+	       int ring_page)
+{
+  struct ei_device *ei_local = netdev_priv(dev);
+
+  half buf[2];
+
+  STNIC_WRITE (PG0_RSAR0, 0);
+  STNIC_WRITE (PG0_RSAR1, ring_page);
+  STNIC_WRITE (PG0_RBCR0, 4);
+  STNIC_WRITE (PG0_RBCR1, 0);
+  STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA);
+
+  buf[0] = *(vhalf *) PA_83902_IF;
+  STNIC_DELAY ();
+  buf[1] = *(vhalf *) PA_83902_IF;
+  STNIC_DELAY ();
+  hdr->next = buf[0] >> 8;
+  hdr->status = buf[0] & 0xff;
+#ifdef __LITTLE_ENDIAN__
+  hdr->count = buf[1];
+#else
+  hdr->count = ((buf[1] >> 8) & 0xff) | (buf[1] << 8);
+#endif
+
+  netif_dbg(ei_local, probe, dev, "ring %x status %02x next %02x count %04x.\n",
+	    ring_page, hdr->status, hdr->next, hdr->count);
+
+  STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA);
+}
+
+/* Block input and output, similar to the Crynwr packet driver. If you are
+   porting to a new ethercard look at the packet driver source for hints.
+   The HP LAN doesn't use shared memory -- we put the packet
+   out through the "remote DMA" dataport. */
+
+static void
+stnic_block_input (struct net_device *dev, int length, struct sk_buff *skb,
+		   int offset)
+{
+  char *buf = skb->data;
+  half val;
+
+  STNIC_WRITE (PG0_RSAR0, offset & 0xff);
+  STNIC_WRITE (PG0_RSAR1, offset >> 8);
+  STNIC_WRITE (PG0_RBCR0, length & 0xff);
+  STNIC_WRITE (PG0_RBCR1, length >> 8);
+  STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA);
+
+  if (length & 1)
+    length++;
+
+  while (length > 0)
+    {
+      val = *(vhalf *) PA_83902_IF;
+#ifdef __LITTLE_ENDIAN__
+      *buf++ = val & 0xff;
+      *buf++ = val >> 8;
+#else
+      *buf++ = val >> 8;
+      *buf++ = val & 0xff;
+#endif
+      STNIC_DELAY ();
+      length -= sizeof (half);
+    }
+
+  STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA);
+}
+
+static void
+stnic_block_output (struct net_device *dev, int length,
+		    const unsigned char *buf, int output_page)
+{
+  STNIC_WRITE (PG0_RBCR0, 1);	/* Write non-zero value */
+  STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA);
+  STNIC_DELAY ();
+
+  STNIC_WRITE (PG0_RBCR0, length & 0xff);
+  STNIC_WRITE (PG0_RBCR1, length >> 8);
+  STNIC_WRITE (PG0_RSAR0, 0);
+  STNIC_WRITE (PG0_RSAR1, output_page);
+  STNIC_WRITE (STNIC_CR, CR_RWR | CR_PG0 | CR_STA);
+
+  if (length & 1)
+    length++;
+
+  while (length > 0)
+    {
+#ifdef __LITTLE_ENDIAN__
+      *(vhalf *) PA_83902_IF = ((half) buf[1] << 8) | buf[0];
+#else
+      *(vhalf *) PA_83902_IF = ((half) buf[0] << 8) | buf[1];
+#endif
+      STNIC_DELAY ();
+      buf += sizeof (half);
+      length -= sizeof (half);
+    }
+
+  STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA);
+}
+
+/* This function resets the STNIC if something screws up.  */
+static void
+stnic_init (struct net_device *dev)
+{
+  stnic_reset (dev);
+  NS8390_init (dev, 0);
+}
+
+static void __exit stnic_cleanup(void)
+{
+	unregister_netdev(stnic_dev);
+	free_irq(stnic_dev->irq, stnic_dev);
+	free_netdev(stnic_dev);
+}
+
+module_init(stnic_probe);
+module_exit(stnic_cleanup);
+MODULE_LICENSE("GPL");