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, 350 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c
new file mode 100644
index 000000000..a79628933
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c
@@ -0,0 +1,350 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2020 MediaTek Inc. */
+
+#include <linux/firmware.h>
+#include "mt7915.h"
+#include "eeprom.h"
+
+static int mt7915_eeprom_load_precal(struct mt7915_dev *dev)
+{
+	struct mt76_dev *mdev = &dev->mt76;
+	u8 *eeprom = mdev->eeprom.data;
+	u32 val = eeprom[MT_EE_DO_PRE_CAL];
+	u32 offs;
+
+	if (!dev->flash_mode)
+		return 0;
+
+	if (val != (MT_EE_WIFI_CAL_DPD | MT_EE_WIFI_CAL_GROUP))
+		return 0;
+
+	val = MT_EE_CAL_GROUP_SIZE + MT_EE_CAL_DPD_SIZE;
+	dev->cal = devm_kzalloc(mdev->dev, val, GFP_KERNEL);
+	if (!dev->cal)
+		return -ENOMEM;
+
+	offs = is_mt7915(&dev->mt76) ? MT_EE_PRECAL : MT_EE_PRECAL_V2;
+
+	return mt76_get_of_eeprom(mdev, dev->cal, offs, val);
+}
+
+static int mt7915_check_eeprom(struct mt7915_dev *dev)
+{
+	u8 *eeprom = dev->mt76.eeprom.data;
+	u16 val = get_unaligned_le16(eeprom);
+
+#define CHECK_EEPROM_ERR(match)	(match ? 0 : -EINVAL)
+	switch (val) {
+	case 0x7915:
+		return CHECK_EEPROM_ERR(is_mt7915(&dev->mt76));
+	case 0x7916:
+		return CHECK_EEPROM_ERR(is_mt7916(&dev->mt76));
+	case 0x7986:
+		return CHECK_EEPROM_ERR(is_mt7986(&dev->mt76));
+	default:
+		return -EINVAL;
+	}
+}
+
+static char *mt7915_eeprom_name(struct mt7915_dev *dev)
+{
+	switch (mt76_chip(&dev->mt76)) {
+	case 0x7915:
+		return dev->dbdc_support ?
+		       MT7915_EEPROM_DEFAULT_DBDC : MT7915_EEPROM_DEFAULT;
+	case 0x7986:
+		switch (mt7915_check_adie(dev, true)) {
+		case MT7976_ONE_ADIE_DBDC:
+			return MT7986_EEPROM_MT7976_DEFAULT_DBDC;
+		case MT7975_ONE_ADIE:
+			return MT7986_EEPROM_MT7975_DEFAULT;
+		case MT7976_ONE_ADIE:
+			return MT7986_EEPROM_MT7976_DEFAULT;
+		case MT7975_DUAL_ADIE:
+			return MT7986_EEPROM_MT7975_DUAL_DEFAULT;
+		case MT7976_DUAL_ADIE:
+			return MT7986_EEPROM_MT7976_DUAL_DEFAULT;
+		default:
+			break;
+		}
+		return NULL;
+	default:
+		return MT7916_EEPROM_DEFAULT;
+	}
+}
+
+static int
+mt7915_eeprom_load_default(struct mt7915_dev *dev)
+{
+	u8 *eeprom = dev->mt76.eeprom.data;
+	const struct firmware *fw = NULL;
+	int ret;
+
+	ret = request_firmware(&fw, mt7915_eeprom_name(dev), dev->mt76.dev);
+	if (ret)
+		return ret;
+
+	if (!fw || !fw->data) {
+		dev_err(dev->mt76.dev, "Invalid default bin\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	memcpy(eeprom, fw->data, mt7915_eeprom_size(dev));
+	dev->flash_mode = true;
+
+out:
+	release_firmware(fw);
+
+	return ret;
+}
+
+static int mt7915_eeprom_load(struct mt7915_dev *dev)
+{
+	int ret;
+	u16 eeprom_size = mt7915_eeprom_size(dev);
+
+	ret = mt76_eeprom_init(&dev->mt76, eeprom_size);
+	if (ret < 0)
+		return ret;
+
+	if (ret) {
+		dev->flash_mode = true;
+	} else {
+		u8 free_block_num;
+		u32 block_num, i;
+		u32 eeprom_blk_size = MT7915_EEPROM_BLOCK_SIZE;
+
+		ret = mt7915_mcu_get_eeprom_free_block(dev, &free_block_num);
+		if (ret < 0)
+			return ret;
+
+		/* efuse info isn't enough */
+		if (free_block_num >= 29)
+			return -EINVAL;
+
+		/* read eeprom data from efuse */
+		block_num = DIV_ROUND_UP(eeprom_size, eeprom_blk_size);
+		for (i = 0; i < block_num; i++) {
+			ret = mt7915_mcu_get_eeprom(dev, i * eeprom_blk_size);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	return mt7915_check_eeprom(dev);
+}
+
+static void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy)
+{
+	struct mt7915_dev *dev = phy->dev;
+	u8 *eeprom = dev->mt76.eeprom.data;
+	u8 band = phy->mt76->band_idx;
+	u32 val;
+
+	val = eeprom[MT_EE_WIFI_CONF + band];
+	val = FIELD_GET(MT_EE_WIFI_CONF0_BAND_SEL, val);
+
+	if (!is_mt7915(&dev->mt76)) {
+		switch (val) {
+		case MT_EE_V2_BAND_SEL_5GHZ:
+			phy->mt76->cap.has_5ghz = true;
+			return;
+		case MT_EE_V2_BAND_SEL_6GHZ:
+			phy->mt76->cap.has_6ghz = true;
+			return;
+		case MT_EE_V2_BAND_SEL_5GHZ_6GHZ:
+			phy->mt76->cap.has_5ghz = true;
+			phy->mt76->cap.has_6ghz = true;
+			return;
+		default:
+			phy->mt76->cap.has_2ghz = true;
+			return;
+		}
+	} else if (val == MT_EE_BAND_SEL_DEFAULT && dev->dbdc_support) {
+		val = band ? MT_EE_BAND_SEL_5GHZ : MT_EE_BAND_SEL_2GHZ;
+	}
+
+	switch (val) {
+	case MT_EE_BAND_SEL_5GHZ:
+		phy->mt76->cap.has_5ghz = true;
+		break;
+	case MT_EE_BAND_SEL_2GHZ:
+		phy->mt76->cap.has_2ghz = true;
+		break;
+	default:
+		phy->mt76->cap.has_2ghz = true;
+		phy->mt76->cap.has_5ghz = true;
+		break;
+	}
+}
+
+void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev,
+				struct mt7915_phy *phy)
+{
+	u8 path, nss, nss_max = 4, *eeprom = dev->mt76.eeprom.data;
+	struct mt76_phy *mphy = phy->mt76;
+	u8 band = phy->mt76->band_idx;
+
+	mt7915_eeprom_parse_band_config(phy);
+
+	/* read tx/rx path from eeprom */
+	if (is_mt7915(&dev->mt76)) {
+		path = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
+				 eeprom[MT_EE_WIFI_CONF]);
+	} else {
+		path = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
+				 eeprom[MT_EE_WIFI_CONF + band]);
+	}
+
+	if (!path || path > 4)
+		path = 4;
+
+	/* read tx/rx stream */
+	nss = path;
+	if (dev->dbdc_support) {
+		if (is_mt7915(&dev->mt76)) {
+			path = min_t(u8, path, 2);
+			nss = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B0,
+					eeprom[MT_EE_WIFI_CONF + 3]);
+			if (band)
+				nss = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B1,
+						eeprom[MT_EE_WIFI_CONF + 3]);
+		} else {
+			nss = FIELD_GET(MT_EE_WIFI_CONF_STREAM_NUM,
+					eeprom[MT_EE_WIFI_CONF + 2 + band]);
+		}
+
+		if (!is_mt7986(&dev->mt76))
+			nss_max = 2;
+	}
+
+	if (!nss)
+		nss = nss_max;
+	nss = min_t(u8, min_t(u8, nss_max, nss), path);
+
+	mphy->chainmask = BIT(path) - 1;
+	if (band)
+		mphy->chainmask <<= dev->chainshift;
+	mphy->antenna_mask = BIT(nss) - 1;
+	dev->chainmask |= mphy->chainmask;
+	dev->chainshift = hweight8(dev->mphy.chainmask);
+}
+
+int mt7915_eeprom_init(struct mt7915_dev *dev)
+{
+	int ret;
+
+	ret = mt7915_eeprom_load(dev);
+	if (ret < 0) {
+		if (ret != -EINVAL)
+			return ret;
+
+		dev_warn(dev->mt76.dev, "eeprom load fail, use default bin\n");
+		ret = mt7915_eeprom_load_default(dev);
+		if (ret)
+			return ret;
+	}
+
+	ret = mt7915_eeprom_load_precal(dev);
+	if (ret)
+		return ret;
+
+	mt7915_eeprom_parse_hw_cap(dev, &dev->phy);
+	memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
+	       ETH_ALEN);
+
+	mt76_eeprom_override(&dev->mphy);
+
+	return 0;
+}
+
+int mt7915_eeprom_get_target_power(struct mt7915_dev *dev,
+				   struct ieee80211_channel *chan,
+				   u8 chain_idx)
+{
+	u8 *eeprom = dev->mt76.eeprom.data;
+	int index, target_power;
+	bool tssi_on, is_7976;
+
+	if (chain_idx > 3)
+		return -EINVAL;
+
+	tssi_on = mt7915_tssi_enabled(dev, chan->band);
+	is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
+
+	if (chan->band == NL80211_BAND_2GHZ) {
+		if (is_7976) {
+			index = MT_EE_TX0_POWER_2G_V2 + chain_idx;
+			target_power = eeprom[index];
+		} else {
+			index = MT_EE_TX0_POWER_2G + chain_idx * 3;
+			target_power = eeprom[index];
+
+			if (!tssi_on)
+				target_power += eeprom[index + 1];
+		}
+	} else if (chan->band == NL80211_BAND_5GHZ) {
+		int group = mt7915_get_channel_group_5g(chan->hw_value, is_7976);
+
+		if (is_7976) {
+			index = MT_EE_TX0_POWER_5G_V2 + chain_idx * 5;
+			target_power = eeprom[index + group];
+		} else {
+			index = MT_EE_TX0_POWER_5G + chain_idx * 12;
+			target_power = eeprom[index + group];
+
+			if (!tssi_on)
+				target_power += eeprom[index + 8];
+		}
+	} else {
+		int group = mt7915_get_channel_group_6g(chan->hw_value);
+
+		index = MT_EE_TX0_POWER_6G_V2 + chain_idx * 8;
+		target_power = is_7976 ? eeprom[index + group] : 0;
+	}
+
+	return target_power;
+}
+
+s8 mt7915_eeprom_get_power_delta(struct mt7915_dev *dev, int band)
+{
+	u8 *eeprom = dev->mt76.eeprom.data;
+	u32 val, offs;
+	s8 delta;
+	bool is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
+
+	if (band == NL80211_BAND_2GHZ)
+		offs = is_7976 ? MT_EE_RATE_DELTA_2G_V2 : MT_EE_RATE_DELTA_2G;
+	else if (band == NL80211_BAND_5GHZ)
+		offs = is_7976 ? MT_EE_RATE_DELTA_5G_V2 : MT_EE_RATE_DELTA_5G;
+	else
+		offs = is_7976 ? MT_EE_RATE_DELTA_6G_V2 : 0;
+
+	val = eeprom[offs];
+
+	if (!offs || !(val & MT_EE_RATE_DELTA_EN))
+		return 0;
+
+	delta = FIELD_GET(MT_EE_RATE_DELTA_MASK, val);
+
+	return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta;
+}
+
+const u8 mt7915_sku_group_len[] = {
+	[SKU_CCK] = 4,
+	[SKU_OFDM] = 8,
+	[SKU_HT_BW20] = 8,
+	[SKU_HT_BW40] = 9,
+	[SKU_VHT_BW20] = 12,
+	[SKU_VHT_BW40] = 12,
+	[SKU_VHT_BW80] = 12,
+	[SKU_VHT_BW160] = 12,
+	[SKU_HE_RU26] = 12,
+	[SKU_HE_RU52] = 12,
+	[SKU_HE_RU106] = 12,
+	[SKU_HE_RU242] = 12,
+	[SKU_HE_RU484] = 12,
+	[SKU_HE_RU996] = 12,
+	[SKU_HE_RU2x996] = 12
+};