From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | 350 +++++++++++++++++++++ 1 file changed, 350 insertions(+) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c') 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 +#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 +}; -- cgit v1.2.3