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, 345 insertions, 0 deletions

diff --git a/drivers/pinctrl/pinctrl-lantiq.c b/drivers/pinctrl/pinctrl-lantiq.c
new file mode 100644
index 000000000..7145b8b0d
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-lantiq.c
@@ -0,0 +1,345 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/drivers/pinctrl/pinctrl-lantiq.c
+ *  based on linux/drivers/pinctrl/pinctrl-pxa3xx.c
+ *
+ *  Copyright (C) 2012 John Crispin <john@phrozen.org>
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+
+#include "pinctrl-lantiq.h"
+
+static int ltq_get_group_count(struct pinctrl_dev *pctrldev)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+	return info->num_grps;
+}
+
+static const char *ltq_get_group_name(struct pinctrl_dev *pctrldev,
+					 unsigned selector)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+	if (selector >= info->num_grps)
+		return NULL;
+	return info->grps[selector].name;
+}
+
+static int ltq_get_group_pins(struct pinctrl_dev *pctrldev,
+				 unsigned selector,
+				 const unsigned **pins,
+				 unsigned *num_pins)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+	if (selector >= info->num_grps)
+		return -EINVAL;
+	*pins = info->grps[selector].pins;
+	*num_pins = info->grps[selector].npins;
+	return 0;
+}
+
+static void ltq_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
+				    struct pinctrl_map *map, unsigned num_maps)
+{
+	int i;
+
+	for (i = 0; i < num_maps; i++)
+		if (map[i].type == PIN_MAP_TYPE_CONFIGS_PIN ||
+		    map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP)
+			kfree(map[i].data.configs.configs);
+	kfree(map);
+}
+
+static void ltq_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev,
+					struct seq_file *s,
+					unsigned offset)
+{
+	seq_printf(s, " %s", dev_name(pctldev->dev));
+}
+
+static void ltq_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev,
+				struct device_node *np,
+				struct pinctrl_map **map)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctldev);
+	struct property *pins = of_find_property(np, "lantiq,pins", NULL);
+	struct property *groups = of_find_property(np, "lantiq,groups", NULL);
+	unsigned long configs[3];
+	unsigned num_configs = 0;
+	struct property *prop;
+	const char *group, *pin;
+	const char *function;
+	int ret, i;
+
+	if (!pins && !groups) {
+		dev_err(pctldev->dev, "%pOFn defines neither pins nor groups\n",
+			np);
+		return;
+	}
+
+	if (pins && groups) {
+		dev_err(pctldev->dev, "%pOFn defines both pins and groups\n",
+			np);
+		return;
+	}
+
+	ret = of_property_read_string(np, "lantiq,function", &function);
+	if (groups && !ret) {
+		of_property_for_each_string(np, "lantiq,groups", prop, group) {
+			(*map)->type = PIN_MAP_TYPE_MUX_GROUP;
+			(*map)->name = function;
+			(*map)->data.mux.group = group;
+			(*map)->data.mux.function = function;
+			(*map)++;
+		}
+	}
+
+	for (i = 0; i < info->num_params; i++) {
+		u32 val;
+		int ret = of_property_read_u32(np,
+				info->params[i].property, &val);
+		if (!ret)
+			configs[num_configs++] =
+				LTQ_PINCONF_PACK(info->params[i].param,
+				val);
+	}
+
+	if (!num_configs)
+		return;
+
+	of_property_for_each_string(np, "lantiq,pins", prop, pin) {
+		(*map)->data.configs.configs = kmemdup(configs,
+					num_configs * sizeof(unsigned long),
+					GFP_KERNEL);
+		(*map)->type = PIN_MAP_TYPE_CONFIGS_PIN;
+		(*map)->name = pin;
+		(*map)->data.configs.group_or_pin = pin;
+		(*map)->data.configs.num_configs = num_configs;
+		(*map)++;
+	}
+	of_property_for_each_string(np, "lantiq,groups", prop, group) {
+		(*map)->data.configs.configs = kmemdup(configs,
+					num_configs * sizeof(unsigned long),
+					GFP_KERNEL);
+		(*map)->type = PIN_MAP_TYPE_CONFIGS_GROUP;
+		(*map)->name = group;
+		(*map)->data.configs.group_or_pin = group;
+		(*map)->data.configs.num_configs = num_configs;
+		(*map)++;
+	}
+}
+
+static int ltq_pinctrl_dt_subnode_size(struct device_node *np)
+{
+	int ret;
+
+	ret = of_property_count_strings(np, "lantiq,groups");
+	if (ret < 0)
+		ret = of_property_count_strings(np, "lantiq,pins");
+	return ret;
+}
+
+static int ltq_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
+				      struct device_node *np_config,
+				      struct pinctrl_map **map,
+				      unsigned *num_maps)
+{
+	struct pinctrl_map *tmp;
+	struct device_node *np;
+	int max_maps = 0;
+
+	for_each_child_of_node(np_config, np)
+		max_maps += ltq_pinctrl_dt_subnode_size(np);
+	*map = kzalloc(array3_size(max_maps, sizeof(struct pinctrl_map), 2),
+		       GFP_KERNEL);
+	if (!*map)
+		return -ENOMEM;
+	tmp = *map;
+
+	for_each_child_of_node(np_config, np)
+		ltq_pinctrl_dt_subnode_to_map(pctldev, np, &tmp);
+	*num_maps = ((int)(tmp - *map));
+
+	return 0;
+}
+
+static const struct pinctrl_ops ltq_pctrl_ops = {
+	.get_groups_count	= ltq_get_group_count,
+	.get_group_name		= ltq_get_group_name,
+	.get_group_pins		= ltq_get_group_pins,
+	.pin_dbg_show		= ltq_pinctrl_pin_dbg_show,
+	.dt_node_to_map		= ltq_pinctrl_dt_node_to_map,
+	.dt_free_map		= ltq_pinctrl_dt_free_map,
+};
+
+static int ltq_pmx_func_count(struct pinctrl_dev *pctrldev)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+
+	return info->num_funcs;
+}
+
+static const char *ltq_pmx_func_name(struct pinctrl_dev *pctrldev,
+					 unsigned selector)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+
+	if (selector >= info->num_funcs)
+		return NULL;
+
+	return info->funcs[selector].name;
+}
+
+static int ltq_pmx_get_groups(struct pinctrl_dev *pctrldev,
+				unsigned func,
+				const char * const **groups,
+				unsigned * const num_groups)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+
+	*groups = info->funcs[func].groups;
+	*num_groups = info->funcs[func].num_groups;
+
+	return 0;
+}
+
+/* Return function number. If failure, return negative value. */
+static int match_mux(const struct ltq_mfp_pin *mfp, unsigned mux)
+{
+	int i;
+	for (i = 0; i < LTQ_MAX_MUX; i++) {
+		if (mfp->func[i] == mux)
+			break;
+	}
+	if (i >= LTQ_MAX_MUX)
+		return -EINVAL;
+	return i;
+}
+
+/* don't assume .mfp is linearly mapped. find the mfp with the correct .pin */
+static int match_mfp(const struct ltq_pinmux_info *info, int pin)
+{
+	int i;
+	for (i = 0; i < info->num_mfp; i++) {
+		if (info->mfp[i].pin == pin)
+			return i;
+	}
+	return -1;
+}
+
+/* check whether current pin configuration is valid. Negative for failure */
+static int match_group_mux(const struct ltq_pin_group *grp,
+			   const struct ltq_pinmux_info *info,
+			   unsigned mux)
+{
+	int i, pin, ret = 0;
+	for (i = 0; i < grp->npins; i++) {
+		pin = match_mfp(info, grp->pins[i]);
+		if (pin < 0) {
+			dev_err(info->dev, "could not find mfp for pin %d\n",
+				grp->pins[i]);
+			return -EINVAL;
+		}
+		ret = match_mux(&info->mfp[pin], mux);
+		if (ret < 0) {
+			dev_err(info->dev, "Can't find mux %d on pin%d\n",
+				mux, pin);
+			break;
+		}
+	}
+	return ret;
+}
+
+static int ltq_pmx_set(struct pinctrl_dev *pctrldev,
+		       unsigned func,
+		       unsigned group)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+	const struct ltq_pin_group *pin_grp = &info->grps[group];
+	int i, pin, pin_func, ret;
+
+	if (!pin_grp->npins ||
+		(match_group_mux(pin_grp, info, pin_grp->mux) < 0)) {
+		dev_err(info->dev, "Failed to set the pin group: %s\n",
+			info->grps[group].name);
+		return -EINVAL;
+	}
+	for (i = 0; i < pin_grp->npins; i++) {
+		pin = match_mfp(info, pin_grp->pins[i]);
+		if (pin < 0) {
+			dev_err(info->dev, "could not find mfp for pin %d\n",
+				pin_grp->pins[i]);
+			return -EINVAL;
+		}
+		pin_func = match_mux(&info->mfp[pin], pin_grp->mux);
+		ret = info->apply_mux(pctrldev, pin, pin_func);
+		if (ret) {
+			dev_err(info->dev,
+				"failed to apply mux %d for pin %d\n",
+				pin_func, pin);
+			return ret;
+		}
+	}
+	return 0;
+}
+
+static int ltq_pmx_gpio_request_enable(struct pinctrl_dev *pctrldev,
+				struct pinctrl_gpio_range *range,
+				unsigned pin)
+{
+	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+	int mfp = match_mfp(info, pin);
+	int pin_func;
+
+	if (mfp < 0) {
+		dev_err(info->dev, "could not find mfp for pin %d\n", pin);
+		return -EINVAL;
+	}
+
+	pin_func = match_mux(&info->mfp[mfp], 0);
+	if (pin_func < 0) {
+		dev_err(info->dev, "No GPIO function on pin%d\n", mfp);
+		return -EINVAL;
+	}
+
+	return info->apply_mux(pctrldev, mfp, pin_func);
+}
+
+static const struct pinmux_ops ltq_pmx_ops = {
+	.get_functions_count	= ltq_pmx_func_count,
+	.get_function_name	= ltq_pmx_func_name,
+	.get_function_groups	= ltq_pmx_get_groups,
+	.set_mux		= ltq_pmx_set,
+	.gpio_request_enable	= ltq_pmx_gpio_request_enable,
+};
+
+/*
+ * allow different socs to register with the generic part of the lanti
+ * pinctrl code
+ */
+int ltq_pinctrl_register(struct platform_device *pdev,
+				struct ltq_pinmux_info *info)
+{
+	struct pinctrl_desc *desc;
+
+	if (!info)
+		return -EINVAL;
+	desc = info->desc;
+	desc->pctlops = &ltq_pctrl_ops;
+	desc->pmxops = &ltq_pmx_ops;
+	info->dev = &pdev->dev;
+
+	info->pctrl = devm_pinctrl_register(&pdev->dev, desc, info);
+	if (IS_ERR(info->pctrl)) {
+		dev_err(&pdev->dev, "failed to register LTQ pinmux driver\n");
+		return PTR_ERR(info->pctrl);
+	}
+	platform_set_drvdata(pdev, info);
+	return 0;
+}