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, 255 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h
new file mode 100644
index 000000000..03b27090c
--- /dev/null
+++ b/arch/sparc/include/asm/parport.h
@@ -0,0 +1,255 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* parport.h: sparc64 specific parport initialization and dma.
+ *
+ * Copyright (C) 1999  Eddie C. Dost  (ecd@skynet.be)
+ */
+
+#ifndef _ASM_SPARC64_PARPORT_H
+#define _ASM_SPARC64_PARPORT_H 1
+
+#include <linux/of_device.h>
+
+#include <asm/ebus_dma.h>
+#include <asm/ns87303.h>
+#include <asm/prom.h>
+
+#define PARPORT_PC_MAX_PORTS	PARPORT_MAX
+
+/*
+ * While sparc64 doesn't have an ISA DMA API, we provide something that looks
+ * close enough to make parport_pc happy
+ */
+#define HAS_DMA
+
+#ifdef CONFIG_PARPORT_PC_FIFO
+static DEFINE_SPINLOCK(dma_spin_lock);
+
+#define claim_dma_lock() \
+({	unsigned long flags; \
+	spin_lock_irqsave(&dma_spin_lock, flags); \
+	flags; \
+})
+
+#define release_dma_lock(__flags) \
+	spin_unlock_irqrestore(&dma_spin_lock, __flags);
+#endif
+
+static struct sparc_ebus_info {
+	struct ebus_dma_info info;
+	unsigned int addr;
+	unsigned int count;
+	int lock;
+
+	struct parport *port;
+} sparc_ebus_dmas[PARPORT_PC_MAX_PORTS];
+
+static DECLARE_BITMAP(dma_slot_map, PARPORT_PC_MAX_PORTS);
+
+static inline int request_dma(unsigned int dmanr, const char *device_id)
+{
+	if (dmanr >= PARPORT_PC_MAX_PORTS)
+		return -EINVAL;
+	if (xchg(&sparc_ebus_dmas[dmanr].lock, 1) != 0)
+		return -EBUSY;
+	return 0;
+}
+
+static inline void free_dma(unsigned int dmanr)
+{
+	if (dmanr >= PARPORT_PC_MAX_PORTS) {
+		printk(KERN_WARNING "Trying to free DMA%d\n", dmanr);
+		return;
+	}
+	if (xchg(&sparc_ebus_dmas[dmanr].lock, 0) == 0) {
+		printk(KERN_WARNING "Trying to free free DMA%d\n", dmanr);
+		return;
+	}
+}
+
+static inline void enable_dma(unsigned int dmanr)
+{
+	ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 1);
+
+	if (ebus_dma_request(&sparc_ebus_dmas[dmanr].info,
+			     sparc_ebus_dmas[dmanr].addr,
+			     sparc_ebus_dmas[dmanr].count))
+		BUG();
+}
+
+static inline void disable_dma(unsigned int dmanr)
+{
+	ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 0);
+}
+
+static inline void clear_dma_ff(unsigned int dmanr)
+{
+	/* nothing */
+}
+
+static inline void set_dma_mode(unsigned int dmanr, char mode)
+{
+	ebus_dma_prepare(&sparc_ebus_dmas[dmanr].info, (mode != DMA_MODE_WRITE));
+}
+
+static inline void set_dma_addr(unsigned int dmanr, unsigned int addr)
+{
+	sparc_ebus_dmas[dmanr].addr = addr;
+}
+
+static inline void set_dma_count(unsigned int dmanr, unsigned int count)
+{
+	sparc_ebus_dmas[dmanr].count = count;
+}
+
+static inline unsigned int get_dma_residue(unsigned int dmanr)
+{
+	return ebus_dma_residue(&sparc_ebus_dmas[dmanr].info);
+}
+
+static int ecpp_probe(struct platform_device *op)
+{
+	unsigned long base = op->resource[0].start;
+	unsigned long config = op->resource[1].start;
+	unsigned long d_base = op->resource[2].start;
+	unsigned long d_len;
+	struct device_node *parent;
+	struct parport *p;
+	int slot, err;
+
+	parent = op->dev.of_node->parent;
+	if (of_node_name_eq(parent, "dma")) {
+		p = parport_pc_probe_port(base, base + 0x400,
+					  op->archdata.irqs[0], PARPORT_DMA_NOFIFO,
+					  op->dev.parent->parent, 0);
+		if (!p)
+			return -ENOMEM;
+		dev_set_drvdata(&op->dev, p);
+		return 0;
+	}
+
+	for (slot = 0; slot < PARPORT_PC_MAX_PORTS; slot++) {
+		if (!test_and_set_bit(slot, dma_slot_map))
+			break;
+	}
+	err = -ENODEV;
+	if (slot >= PARPORT_PC_MAX_PORTS)
+		goto out_err;
+
+	spin_lock_init(&sparc_ebus_dmas[slot].info.lock);
+
+	d_len = (op->resource[2].end - d_base) + 1UL;
+	sparc_ebus_dmas[slot].info.regs =
+		of_ioremap(&op->resource[2], 0, d_len, "ECPP DMA");
+
+	if (!sparc_ebus_dmas[slot].info.regs)
+		goto out_clear_map;
+
+	sparc_ebus_dmas[slot].info.flags = 0;
+	sparc_ebus_dmas[slot].info.callback = NULL;
+	sparc_ebus_dmas[slot].info.client_cookie = NULL;
+	sparc_ebus_dmas[slot].info.irq = 0xdeadbeef;
+	strcpy(sparc_ebus_dmas[slot].info.name, "parport");
+	if (ebus_dma_register(&sparc_ebus_dmas[slot].info))
+		goto out_unmap_regs;
+
+	ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 1);
+
+	/* Configure IRQ to Push Pull, Level Low */
+	/* Enable ECP, set bit 2 of the CTR first */
+	outb(0x04, base + 0x02);
+	ns87303_modify(config, PCR,
+		       PCR_EPP_ENABLE |
+		       PCR_IRQ_ODRAIN,
+		       PCR_ECP_ENABLE |
+		       PCR_ECP_CLK_ENA |
+		       PCR_IRQ_POLAR);
+
+	/* CTR bit 5 controls direction of port */
+	ns87303_modify(config, PTR,
+		       0, PTR_LPT_REG_DIR);
+
+	p = parport_pc_probe_port(base, base + 0x400,
+				  op->archdata.irqs[0],
+				  slot,
+				  op->dev.parent,
+				  0);
+	err = -ENOMEM;
+	if (!p)
+		goto out_disable_irq;
+
+	dev_set_drvdata(&op->dev, p);
+
+	return 0;
+
+out_disable_irq:
+	ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 0);
+	ebus_dma_unregister(&sparc_ebus_dmas[slot].info);
+
+out_unmap_regs:
+	of_iounmap(&op->resource[2], sparc_ebus_dmas[slot].info.regs, d_len);
+
+out_clear_map:
+	clear_bit(slot, dma_slot_map);
+
+out_err:
+	return err;
+}
+
+static int ecpp_remove(struct platform_device *op)
+{
+	struct parport *p = dev_get_drvdata(&op->dev);
+	int slot = p->dma;
+
+	parport_pc_unregister_port(p);
+
+	if (slot != PARPORT_DMA_NOFIFO) {
+		unsigned long d_base = op->resource[2].start;
+		unsigned long d_len;
+
+		d_len = (op->resource[2].end - d_base) + 1UL;
+
+		ebus_dma_irq_enable(&sparc_ebus_dmas[slot].info, 0);
+		ebus_dma_unregister(&sparc_ebus_dmas[slot].info);
+		of_iounmap(&op->resource[2],
+			   sparc_ebus_dmas[slot].info.regs,
+			   d_len);
+		clear_bit(slot, dma_slot_map);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id ecpp_match[] = {
+	{
+		.name = "ecpp",
+	},
+	{
+		.name = "parallel",
+		.compatible = "ecpp",
+	},
+	{
+		.name = "parallel",
+		.compatible = "ns87317-ecpp",
+	},
+	{
+		.name = "parallel",
+		.compatible = "pnpALI,1533,3",
+	},
+	{},
+};
+
+static struct platform_driver ecpp_driver = {
+	.driver = {
+		.name = "ecpp",
+		.of_match_table = ecpp_match,
+	},
+	.probe			= ecpp_probe,
+	.remove			= ecpp_remove,
+};
+
+static int parport_pc_find_nonpci_ports(int autoirq, int autodma)
+{
+	return platform_driver_register(&ecpp_driver);
+}
+
+#endif /* !(_ASM_SPARC64_PARPORT_H */