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, 359 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c
new file mode 100644
index 000000000..dce851d42
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/eeprom.c
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+#include <linux/of.h>
+#include <linux/of_net.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/etherdevice.h>
+#include "mt76.h"
+
+int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len)
+{
+#if defined(CONFIG_OF) && defined(CONFIG_MTD)
+	struct device_node *np = dev->dev->of_node;
+	struct mtd_info *mtd;
+	const __be32 *list;
+	const void *data;
+	const char *part;
+	phandle phandle;
+	int size;
+	size_t retlen;
+	int ret;
+
+	if (!np)
+		return -ENOENT;
+
+	data = of_get_property(np, "mediatek,eeprom-data", &size);
+	if (data) {
+		if (size > len)
+			return -EINVAL;
+
+		memcpy(eep, data, size);
+
+		return 0;
+	}
+
+	list = of_get_property(np, "mediatek,mtd-eeprom", &size);
+	if (!list)
+		return -ENOENT;
+
+	phandle = be32_to_cpup(list++);
+	if (!phandle)
+		return -ENOENT;
+
+	np = of_find_node_by_phandle(phandle);
+	if (!np)
+		return -EINVAL;
+
+	part = of_get_property(np, "label", NULL);
+	if (!part)
+		part = np->name;
+
+	mtd = get_mtd_device_nm(part);
+	if (IS_ERR(mtd)) {
+		ret =  PTR_ERR(mtd);
+		goto out_put_node;
+	}
+
+	if (size <= sizeof(*list)) {
+		ret = -EINVAL;
+		goto out_put_node;
+	}
+
+	offset = be32_to_cpup(list);
+	ret = mtd_read(mtd, offset, len, &retlen, eep);
+	put_mtd_device(mtd);
+	if (mtd_is_bitflip(ret))
+		ret = 0;
+	if (ret) {
+		dev_err(dev->dev, "reading EEPROM from mtd %s failed: %i\n",
+			part, ret);
+		goto out_put_node;
+	}
+
+	if (retlen < len) {
+		ret = -EINVAL;
+		goto out_put_node;
+	}
+
+	if (of_property_read_bool(dev->dev->of_node, "big-endian")) {
+		u8 *data = (u8 *)eep;
+		int i;
+
+		/* convert eeprom data in Little Endian */
+		for (i = 0; i < round_down(len, 2); i += 2)
+			put_unaligned_le16(get_unaligned_be16(&data[i]),
+					   &data[i]);
+	}
+
+#ifdef CONFIG_NL80211_TESTMODE
+	dev->test_mtd.name = devm_kstrdup(dev->dev, part, GFP_KERNEL);
+	dev->test_mtd.offset = offset;
+#endif
+
+out_put_node:
+	of_node_put(np);
+	return ret;
+#else
+	return -ENOENT;
+#endif
+}
+EXPORT_SYMBOL_GPL(mt76_get_of_eeprom);
+
+void
+mt76_eeprom_override(struct mt76_phy *phy)
+{
+	struct mt76_dev *dev = phy->dev;
+	struct device_node *np = dev->dev->of_node;
+
+	of_get_mac_address(np, phy->macaddr);
+
+	if (!is_valid_ether_addr(phy->macaddr)) {
+		eth_random_addr(phy->macaddr);
+		dev_info(dev->dev,
+			 "Invalid MAC address, using random address %pM\n",
+			 phy->macaddr);
+	}
+}
+EXPORT_SYMBOL_GPL(mt76_eeprom_override);
+
+static bool mt76_string_prop_find(struct property *prop, const char *str)
+{
+	const char *cp = NULL;
+
+	if (!prop || !str || !str[0])
+		return false;
+
+	while ((cp = of_prop_next_string(prop, cp)) != NULL)
+		if (!strcasecmp(cp, str))
+			return true;
+
+	return false;
+}
+
+static struct device_node *
+mt76_find_power_limits_node(struct mt76_dev *dev)
+{
+	struct device_node *np = dev->dev->of_node;
+	const char *const region_names[] = {
+		[NL80211_DFS_UNSET] = "ww",
+		[NL80211_DFS_ETSI] = "etsi",
+		[NL80211_DFS_FCC] = "fcc",
+		[NL80211_DFS_JP] = "jp",
+	};
+	struct device_node *cur, *fallback = NULL;
+	const char *region_name = NULL;
+
+	if (dev->region < ARRAY_SIZE(region_names))
+		region_name = region_names[dev->region];
+
+	np = of_get_child_by_name(np, "power-limits");
+	if (!np)
+		return NULL;
+
+	for_each_child_of_node(np, cur) {
+		struct property *country = of_find_property(cur, "country", NULL);
+		struct property *regd = of_find_property(cur, "regdomain", NULL);
+
+		if (!country && !regd) {
+			fallback = cur;
+			continue;
+		}
+
+		if (mt76_string_prop_find(country, dev->alpha2) ||
+		    mt76_string_prop_find(regd, region_name)) {
+			of_node_put(np);
+			return cur;
+		}
+	}
+
+	of_node_put(np);
+	return fallback;
+}
+
+static const __be32 *
+mt76_get_of_array(struct device_node *np, char *name, size_t *len, int min)
+{
+	struct property *prop = of_find_property(np, name, NULL);
+
+	if (!prop || !prop->value || prop->length < min * 4)
+		return NULL;
+
+	*len = prop->length;
+
+	return prop->value;
+}
+
+static struct device_node *
+mt76_find_channel_node(struct device_node *np, struct ieee80211_channel *chan)
+{
+	struct device_node *cur;
+	const __be32 *val;
+	size_t len;
+
+	for_each_child_of_node(np, cur) {
+		val = mt76_get_of_array(cur, "channels", &len, 2);
+		if (!val)
+			continue;
+
+		while (len >= 2 * sizeof(*val)) {
+			if (chan->hw_value >= be32_to_cpu(val[0]) &&
+			    chan->hw_value <= be32_to_cpu(val[1]))
+				return cur;
+
+			val += 2;
+			len -= 2 * sizeof(*val);
+		}
+	}
+
+	return NULL;
+}
+
+static s8
+mt76_get_txs_delta(struct device_node *np, u8 nss)
+{
+	const __be32 *val;
+	size_t len;
+
+	val = mt76_get_of_array(np, "txs-delta", &len, nss);
+	if (!val)
+		return 0;
+
+	return be32_to_cpu(val[nss - 1]);
+}
+
+static void
+mt76_apply_array_limit(s8 *pwr, size_t pwr_len, const __be32 *data,
+		       s8 target_power, s8 nss_delta, s8 *max_power)
+{
+	int i;
+
+	if (!data)
+		return;
+
+	for (i = 0; i < pwr_len; i++) {
+		pwr[i] = min_t(s8, target_power,
+			       be32_to_cpu(data[i]) + nss_delta);
+		*max_power = max(*max_power, pwr[i]);
+	}
+}
+
+static void
+mt76_apply_multi_array_limit(s8 *pwr, size_t pwr_len, s8 pwr_num,
+			     const __be32 *data, size_t len, s8 target_power,
+			     s8 nss_delta, s8 *max_power)
+{
+	int i, cur;
+
+	if (!data)
+		return;
+
+	len /= 4;
+	cur = be32_to_cpu(data[0]);
+	for (i = 0; i < pwr_num; i++) {
+		if (len < pwr_len + 1)
+			break;
+
+		mt76_apply_array_limit(pwr + pwr_len * i, pwr_len, data + 1,
+				       target_power, nss_delta, max_power);
+		if (--cur > 0)
+			continue;
+
+		data += pwr_len + 1;
+		len -= pwr_len + 1;
+		if (!len)
+			break;
+
+		cur = be32_to_cpu(data[0]);
+	}
+}
+
+s8 mt76_get_rate_power_limits(struct mt76_phy *phy,
+			      struct ieee80211_channel *chan,
+			      struct mt76_power_limits *dest,
+			      s8 target_power)
+{
+	struct mt76_dev *dev = phy->dev;
+	struct device_node *np;
+	const __be32 *val;
+	char name[16];
+	u32 mcs_rates = dev->drv->mcs_rates;
+	u32 ru_rates = ARRAY_SIZE(dest->ru[0]);
+	char band;
+	size_t len;
+	s8 max_power = 0;
+	s8 txs_delta;
+
+	if (!mcs_rates)
+		mcs_rates = 10;
+
+	memset(dest, target_power, sizeof(*dest));
+
+	if (!IS_ENABLED(CONFIG_OF))
+		return target_power;
+
+	np = mt76_find_power_limits_node(dev);
+	if (!np)
+		return target_power;
+
+	switch (chan->band) {
+	case NL80211_BAND_2GHZ:
+		band = '2';
+		break;
+	case NL80211_BAND_5GHZ:
+		band = '5';
+		break;
+	case NL80211_BAND_6GHZ:
+		band = '6';
+		break;
+	default:
+		return target_power;
+	}
+
+	snprintf(name, sizeof(name), "txpower-%cg", band);
+	np = of_get_child_by_name(np, name);
+	if (!np)
+		return target_power;
+
+	np = mt76_find_channel_node(np, chan);
+	if (!np)
+		return target_power;
+
+	txs_delta = mt76_get_txs_delta(np, hweight8(phy->antenna_mask));
+
+	val = mt76_get_of_array(np, "rates-cck", &len, ARRAY_SIZE(dest->cck));
+	mt76_apply_array_limit(dest->cck, ARRAY_SIZE(dest->cck), val,
+			       target_power, txs_delta, &max_power);
+
+	val = mt76_get_of_array(np, "rates-ofdm",
+				&len, ARRAY_SIZE(dest->ofdm));
+	mt76_apply_array_limit(dest->ofdm, ARRAY_SIZE(dest->ofdm), val,
+			       target_power, txs_delta, &max_power);
+
+	val = mt76_get_of_array(np, "rates-mcs", &len, mcs_rates + 1);
+	mt76_apply_multi_array_limit(dest->mcs[0], ARRAY_SIZE(dest->mcs[0]),
+				     ARRAY_SIZE(dest->mcs), val, len,
+				     target_power, txs_delta, &max_power);
+
+	val = mt76_get_of_array(np, "rates-ru", &len, ru_rates + 1);
+	mt76_apply_multi_array_limit(dest->ru[0], ARRAY_SIZE(dest->ru[0]),
+				     ARRAY_SIZE(dest->ru), val, len,
+				     target_power, txs_delta, &max_power);
+
+	return max_power;
+}
+EXPORT_SYMBOL_GPL(mt76_get_rate_power_limits);
+
+int
+mt76_eeprom_init(struct mt76_dev *dev, int len)
+{
+	dev->eeprom.size = len;
+	dev->eeprom.data = devm_kzalloc(dev->dev, len, GFP_KERNEL);
+	if (!dev->eeprom.data)
+		return -ENOMEM;
+
+	return !mt76_get_of_eeprom(dev, dev->eeprom.data, 0, len);
+}
+EXPORT_SYMBOL_GPL(mt76_eeprom_init);