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, 312 insertions, 0 deletions

diff --git a/drivers/mfd/pcf50633-irq.c b/drivers/mfd/pcf50633-irq.c
new file mode 100644
index 000000000..e85af7f1c
--- /dev/null
+++ b/drivers/mfd/pcf50633-irq.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* NXP PCF50633 Power Management Unit (PMU) driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * 	   Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/mbc.h>
+
+int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
+			void (*handler) (int, void *), void *data)
+{
+	if (irq < 0 || irq >= PCF50633_NUM_IRQ || !handler)
+		return -EINVAL;
+
+	if (WARN_ON(pcf->irq_handler[irq].handler))
+		return -EBUSY;
+
+	mutex_lock(&pcf->lock);
+	pcf->irq_handler[irq].handler = handler;
+	pcf->irq_handler[irq].data = data;
+	mutex_unlock(&pcf->lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_register_irq);
+
+int pcf50633_free_irq(struct pcf50633 *pcf, int irq)
+{
+	if (irq < 0 || irq >= PCF50633_NUM_IRQ)
+		return -EINVAL;
+
+	mutex_lock(&pcf->lock);
+	pcf->irq_handler[irq].handler = NULL;
+	mutex_unlock(&pcf->lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_free_irq);
+
+static int __pcf50633_irq_mask_set(struct pcf50633 *pcf, int irq, u8 mask)
+{
+	u8 reg, bit;
+	int idx;
+
+	idx = irq >> 3;
+	reg = PCF50633_REG_INT1M + idx;
+	bit = 1 << (irq & 0x07);
+
+	pcf50633_reg_set_bit_mask(pcf, reg, bit, mask ? bit : 0);
+
+	mutex_lock(&pcf->lock);
+
+	if (mask)
+		pcf->mask_regs[idx] |= bit;
+	else
+		pcf->mask_regs[idx] &= ~bit;
+
+	mutex_unlock(&pcf->lock);
+
+	return 0;
+}
+
+int pcf50633_irq_mask(struct pcf50633 *pcf, int irq)
+{
+	dev_dbg(pcf->dev, "Masking IRQ %d\n", irq);
+
+	return __pcf50633_irq_mask_set(pcf, irq, 1);
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_mask);
+
+int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq)
+{
+	dev_dbg(pcf->dev, "Unmasking IRQ %d\n", irq);
+
+	return __pcf50633_irq_mask_set(pcf, irq, 0);
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_unmask);
+
+int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq)
+{
+	u8 reg, bits;
+
+	reg =  irq >> 3;
+	bits = 1 << (irq & 0x07);
+
+	return pcf->mask_regs[reg] & bits;
+}
+EXPORT_SYMBOL_GPL(pcf50633_irq_mask_get);
+
+static void pcf50633_irq_call_handler(struct pcf50633 *pcf, int irq)
+{
+	if (pcf->irq_handler[irq].handler)
+		pcf->irq_handler[irq].handler(irq, pcf->irq_handler[irq].data);
+}
+
+/* Maximum amount of time ONKEY is held before emergency action is taken */
+#define PCF50633_ONKEY1S_TIMEOUT 8
+
+static irqreturn_t pcf50633_irq(int irq, void *data)
+{
+	struct pcf50633 *pcf = data;
+	int ret, i, j;
+	u8 pcf_int[5], chgstat;
+
+	/* Read the 5 INT regs in one transaction */
+	ret = pcf50633_read_block(pcf, PCF50633_REG_INT1,
+						ARRAY_SIZE(pcf_int), pcf_int);
+	if (ret != ARRAY_SIZE(pcf_int)) {
+		dev_err(pcf->dev, "Error reading INT registers\n");
+
+		/*
+		 * If this doesn't ACK the interrupt to the chip, we'll be
+		 * called once again as we're level triggered.
+		 */
+		goto out;
+	}
+
+	/* defeat 8s death from lowsys on A5 */
+	pcf50633_reg_write(pcf, PCF50633_REG_OOCSHDWN,  0x04);
+
+	/* We immediately read the usb and adapter status. We thus make sure
+	 * only of USBINS/USBREM IRQ handlers are called */
+	if (pcf_int[0] & (PCF50633_INT1_USBINS | PCF50633_INT1_USBREM)) {
+		chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
+		if (chgstat & (0x3 << 4))
+			pcf_int[0] &= ~PCF50633_INT1_USBREM;
+		else
+			pcf_int[0] &= ~PCF50633_INT1_USBINS;
+	}
+
+	/* Make sure only one of ADPINS or ADPREM is set */
+	if (pcf_int[0] & (PCF50633_INT1_ADPINS | PCF50633_INT1_ADPREM)) {
+		chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
+		if (chgstat & (0x3 << 4))
+			pcf_int[0] &= ~PCF50633_INT1_ADPREM;
+		else
+			pcf_int[0] &= ~PCF50633_INT1_ADPINS;
+	}
+
+	dev_dbg(pcf->dev, "INT1=0x%02x INT2=0x%02x INT3=0x%02x "
+			"INT4=0x%02x INT5=0x%02x\n", pcf_int[0],
+			pcf_int[1], pcf_int[2], pcf_int[3], pcf_int[4]);
+
+	/* Some revisions of the chip don't have a 8s standby mode on
+	 * ONKEY1S press. We try to manually do it in such cases. */
+	if ((pcf_int[0] & PCF50633_INT1_SECOND) && pcf->onkey1s_held) {
+		dev_info(pcf->dev, "ONKEY1S held for %d secs\n",
+							pcf->onkey1s_held);
+		if (pcf->onkey1s_held++ == PCF50633_ONKEY1S_TIMEOUT)
+			if (pcf->pdata->force_shutdown)
+				pcf->pdata->force_shutdown(pcf);
+	}
+
+	if (pcf_int[2] & PCF50633_INT3_ONKEY1S) {
+		dev_info(pcf->dev, "ONKEY1S held\n");
+		pcf->onkey1s_held = 1 ;
+
+		/* Unmask IRQ_SECOND */
+		pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M,
+						PCF50633_INT1_SECOND);
+
+		/* Unmask IRQ_ONKEYR */
+		pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT2M,
+						PCF50633_INT2_ONKEYR);
+	}
+
+	if ((pcf_int[1] & PCF50633_INT2_ONKEYR) && pcf->onkey1s_held) {
+		pcf->onkey1s_held = 0;
+
+		/* Mask SECOND and ONKEYR interrupts */
+		if (pcf->mask_regs[0] & PCF50633_INT1_SECOND)
+			pcf50633_reg_set_bit_mask(pcf,
+					PCF50633_REG_INT1M,
+					PCF50633_INT1_SECOND,
+					PCF50633_INT1_SECOND);
+
+		if (pcf->mask_regs[1] & PCF50633_INT2_ONKEYR)
+			pcf50633_reg_set_bit_mask(pcf,
+					PCF50633_REG_INT2M,
+					PCF50633_INT2_ONKEYR,
+					PCF50633_INT2_ONKEYR);
+	}
+
+	/* Have we just resumed ? */
+	if (pcf->is_suspended) {
+		pcf->is_suspended = 0;
+
+		/* Set the resume reason filtering out non resumers */
+		for (i = 0; i < ARRAY_SIZE(pcf_int); i++)
+			pcf->resume_reason[i] = pcf_int[i] &
+						pcf->pdata->resumers[i];
+
+		/* Make sure we don't pass on any ONKEY events to
+		 * userspace now */
+		pcf_int[1] &= ~(PCF50633_INT2_ONKEYR | PCF50633_INT2_ONKEYF);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(pcf_int); i++) {
+		/* Unset masked interrupts */
+		pcf_int[i] &= ~pcf->mask_regs[i];
+
+		for (j = 0; j < 8 ; j++)
+			if (pcf_int[i] & (1 << j))
+				pcf50633_irq_call_handler(pcf, (i * 8) + j);
+	}
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int pcf50633_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct pcf50633 *pcf = i2c_get_clientdata(client);
+	int ret;
+	int i;
+	u8 res[5];
+
+
+	/* Make sure our interrupt handlers are not called
+	 * henceforth */
+	disable_irq(pcf->irq);
+
+	/* Save the masks */
+	ret = pcf50633_read_block(pcf, PCF50633_REG_INT1M,
+				ARRAY_SIZE(pcf->suspend_irq_masks),
+					pcf->suspend_irq_masks);
+	if (ret < 0) {
+		dev_err(pcf->dev, "error saving irq masks\n");
+		goto out;
+	}
+
+	/* Write wakeup irq masks */
+	for (i = 0; i < ARRAY_SIZE(res); i++)
+		res[i] = ~pcf->pdata->resumers[i];
+
+	ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
+					ARRAY_SIZE(res), &res[0]);
+	if (ret < 0) {
+		dev_err(pcf->dev, "error writing wakeup irq masks\n");
+		goto out;
+	}
+
+	pcf->is_suspended = 1;
+
+out:
+	return ret;
+}
+
+static int pcf50633_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct pcf50633 *pcf = i2c_get_clientdata(client);
+	int ret;
+
+	/* Write the saved mask registers */
+	ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
+				ARRAY_SIZE(pcf->suspend_irq_masks),
+					pcf->suspend_irq_masks);
+	if (ret < 0)
+		dev_err(pcf->dev, "Error restoring saved suspend masks\n");
+
+	enable_irq(pcf->irq);
+
+	return ret;
+}
+
+EXPORT_GPL_SIMPLE_DEV_PM_OPS(pcf50633_pm, pcf50633_suspend, pcf50633_resume);
+
+int pcf50633_irq_init(struct pcf50633 *pcf, int irq)
+{
+	int ret;
+
+	pcf->irq = irq;
+
+	/* Enable all interrupts except RTC SECOND */
+	pcf->mask_regs[0] = 0x80;
+	pcf50633_reg_write(pcf, PCF50633_REG_INT1M, pcf->mask_regs[0]);
+	pcf50633_reg_write(pcf, PCF50633_REG_INT2M, 0x00);
+	pcf50633_reg_write(pcf, PCF50633_REG_INT3M, 0x00);
+	pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00);
+	pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00);
+
+	ret = request_threaded_irq(irq, NULL, pcf50633_irq,
+					IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+					"pcf50633", pcf);
+
+	if (ret)
+		dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);
+
+	if (enable_irq_wake(irq) < 0)
+		dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"
+			"in this hardware revision", irq);
+
+	return ret;
+}
+
+void pcf50633_irq_free(struct pcf50633 *pcf)
+{
+	free_irq(pcf->irq, pcf);
+}