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, 252 insertions, 0 deletions

diff --git a/sound/aoa/core/gpio-pmf.c b/sound/aoa/core/gpio-pmf.c
new file mode 100644
index 000000000..37866039d
--- /dev/null
+++ b/sound/aoa/core/gpio-pmf.c
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Apple Onboard Audio pmf GPIOs
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/slab.h>
+#include <asm/pmac_feature.h>
+#include <asm/pmac_pfunc.h>
+#include "../aoa.h"
+
+#define PMF_GPIO(name, bit)					\
+static void pmf_gpio_set_##name(struct gpio_runtime *rt, int on)\
+{								\
+	struct pmf_args args = { .count = 1, .u[0].v = !on };	\
+	int rc;							\
+							\
+	if (unlikely(!rt)) return;				\
+	rc = pmf_call_function(rt->node, #name "-mute", &args);	\
+	if (rc && rc != -ENODEV)				\
+		printk(KERN_WARNING "pmf_gpio_set_" #name	\
+		" failed, rc: %d\n", rc);			\
+	rt->implementation_private &= ~(1<<bit);		\
+	rt->implementation_private |= (!!on << bit);		\
+}								\
+static int pmf_gpio_get_##name(struct gpio_runtime *rt)		\
+{								\
+	if (unlikely(!rt)) return 0;				\
+	return (rt->implementation_private>>bit)&1;		\
+}
+
+PMF_GPIO(headphone, 0);
+PMF_GPIO(amp, 1);
+PMF_GPIO(lineout, 2);
+
+static void pmf_gpio_set_hw_reset(struct gpio_runtime *rt, int on)
+{
+	struct pmf_args args = { .count = 1, .u[0].v = !!on };
+	int rc;
+
+	if (unlikely(!rt)) return;
+	rc = pmf_call_function(rt->node, "hw-reset", &args);
+	if (rc)
+		printk(KERN_WARNING "pmf_gpio_set_hw_reset"
+		       " failed, rc: %d\n", rc);
+}
+
+static void pmf_gpio_all_amps_off(struct gpio_runtime *rt)
+{
+	int saved;
+
+	if (unlikely(!rt)) return;
+	saved = rt->implementation_private;
+	pmf_gpio_set_headphone(rt, 0);
+	pmf_gpio_set_amp(rt, 0);
+	pmf_gpio_set_lineout(rt, 0);
+	rt->implementation_private = saved;
+}
+
+static void pmf_gpio_all_amps_restore(struct gpio_runtime *rt)
+{
+	int s;
+
+	if (unlikely(!rt)) return;
+	s = rt->implementation_private;
+	pmf_gpio_set_headphone(rt, (s>>0)&1);
+	pmf_gpio_set_amp(rt, (s>>1)&1);
+	pmf_gpio_set_lineout(rt, (s>>2)&1);
+}
+
+static void pmf_handle_notify(struct work_struct *work)
+{
+	struct gpio_notification *notif =
+		container_of(work, struct gpio_notification, work.work);
+
+	mutex_lock(&notif->mutex);
+	if (notif->notify)
+		notif->notify(notif->data);
+	mutex_unlock(&notif->mutex);
+}
+
+static void pmf_gpio_init(struct gpio_runtime *rt)
+{
+	pmf_gpio_all_amps_off(rt);
+	rt->implementation_private = 0;
+	INIT_DELAYED_WORK(&rt->headphone_notify.work, pmf_handle_notify);
+	INIT_DELAYED_WORK(&rt->line_in_notify.work, pmf_handle_notify);
+	INIT_DELAYED_WORK(&rt->line_out_notify.work, pmf_handle_notify);
+	mutex_init(&rt->headphone_notify.mutex);
+	mutex_init(&rt->line_in_notify.mutex);
+	mutex_init(&rt->line_out_notify.mutex);
+}
+
+static void pmf_gpio_exit(struct gpio_runtime *rt)
+{
+	pmf_gpio_all_amps_off(rt);
+	rt->implementation_private = 0;
+
+	if (rt->headphone_notify.gpio_private)
+		pmf_unregister_irq_client(rt->headphone_notify.gpio_private);
+	if (rt->line_in_notify.gpio_private)
+		pmf_unregister_irq_client(rt->line_in_notify.gpio_private);
+	if (rt->line_out_notify.gpio_private)
+		pmf_unregister_irq_client(rt->line_out_notify.gpio_private);
+
+	/* make sure no work is pending before freeing
+	 * all things */
+	cancel_delayed_work_sync(&rt->headphone_notify.work);
+	cancel_delayed_work_sync(&rt->line_in_notify.work);
+	cancel_delayed_work_sync(&rt->line_out_notify.work);
+
+	mutex_destroy(&rt->headphone_notify.mutex);
+	mutex_destroy(&rt->line_in_notify.mutex);
+	mutex_destroy(&rt->line_out_notify.mutex);
+
+	kfree(rt->headphone_notify.gpio_private);
+	kfree(rt->line_in_notify.gpio_private);
+	kfree(rt->line_out_notify.gpio_private);
+}
+
+static void pmf_handle_notify_irq(void *data)
+{
+	struct gpio_notification *notif = data;
+
+	schedule_delayed_work(&notif->work, 0);
+}
+
+static int pmf_set_notify(struct gpio_runtime *rt,
+			  enum notify_type type,
+			  notify_func_t notify,
+			  void *data)
+{
+	struct gpio_notification *notif;
+	notify_func_t old;
+	struct pmf_irq_client *irq_client;
+	char *name;
+	int err = -EBUSY;
+
+	switch (type) {
+	case AOA_NOTIFY_HEADPHONE:
+		notif = &rt->headphone_notify;
+		name = "headphone-detect";
+		break;
+	case AOA_NOTIFY_LINE_IN:
+		notif = &rt->line_in_notify;
+		name = "linein-detect";
+		break;
+	case AOA_NOTIFY_LINE_OUT:
+		notif = &rt->line_out_notify;
+		name = "lineout-detect";
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mutex_lock(&notif->mutex);
+
+	old = notif->notify;
+
+	if (!old && !notify) {
+		err = 0;
+		goto out_unlock;
+	}
+
+	if (old && notify) {
+		if (old == notify && notif->data == data)
+			err = 0;
+		goto out_unlock;
+	}
+
+	if (old && !notify) {
+		irq_client = notif->gpio_private;
+		pmf_unregister_irq_client(irq_client);
+		kfree(irq_client);
+		notif->gpio_private = NULL;
+	}
+	if (!old && notify) {
+		irq_client = kzalloc(sizeof(struct pmf_irq_client),
+				     GFP_KERNEL);
+		if (!irq_client) {
+			err = -ENOMEM;
+			goto out_unlock;
+		}
+		irq_client->data = notif;
+		irq_client->handler = pmf_handle_notify_irq;
+		irq_client->owner = THIS_MODULE;
+		err = pmf_register_irq_client(rt->node,
+					      name,
+					      irq_client);
+		if (err) {
+			printk(KERN_ERR "snd-aoa: gpio layer failed to"
+					" register %s irq (%d)\n", name, err);
+			kfree(irq_client);
+			goto out_unlock;
+		}
+		notif->gpio_private = irq_client;
+	}
+	notif->notify = notify;
+	notif->data = data;
+
+	err = 0;
+ out_unlock:
+	mutex_unlock(&notif->mutex);
+	return err;
+}
+
+static int pmf_get_detect(struct gpio_runtime *rt,
+			  enum notify_type type)
+{
+	char *name;
+	int err = -EBUSY, ret;
+	struct pmf_args args = { .count = 1, .u[0].p = &ret };
+
+	switch (type) {
+	case AOA_NOTIFY_HEADPHONE:
+		name = "headphone-detect";
+		break;
+	case AOA_NOTIFY_LINE_IN:
+		name = "linein-detect";
+		break;
+	case AOA_NOTIFY_LINE_OUT:
+		name = "lineout-detect";
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	err = pmf_call_function(rt->node, name, &args);
+	if (err)
+		return err;
+	return ret;
+}
+
+static struct gpio_methods methods = {
+	.init			= pmf_gpio_init,
+	.exit			= pmf_gpio_exit,
+	.all_amps_off		= pmf_gpio_all_amps_off,
+	.all_amps_restore	= pmf_gpio_all_amps_restore,
+	.set_headphone		= pmf_gpio_set_headphone,
+	.set_speakers		= pmf_gpio_set_amp,
+	.set_lineout		= pmf_gpio_set_lineout,
+	.set_hw_reset		= pmf_gpio_set_hw_reset,
+	.get_headphone		= pmf_gpio_get_headphone,
+	.get_speakers		= pmf_gpio_get_amp,
+	.get_lineout		= pmf_gpio_get_lineout,
+	.set_notify		= pmf_set_notify,
+	.get_detect		= pmf_get_detect,
+};
+
+struct gpio_methods *pmf_gpio_methods = &methods;
+EXPORT_SYMBOL_GPL(pmf_gpio_methods);