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(). ... --- .../net/wireless/mediatek/mt76/mt7615/testmode.c | 376 +++++++++++++++++++++ 1 file changed, 376 insertions(+) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/testmode.c (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/testmode.c') diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/testmode.c b/drivers/net/wireless/mediatek/mt76/mt7615/testmode.c new file mode 100644 index 000000000..a3d1cfa72 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7615/testmode.c @@ -0,0 +1,376 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 Felix Fietkau */ + +#include "mt7615.h" +#include "eeprom.h" +#include "mcu.h" + +enum { + TM_CHANGED_TXPOWER_CTRL, + TM_CHANGED_TXPOWER, + TM_CHANGED_FREQ_OFFSET, + + /* must be last */ + NUM_TM_CHANGED +}; + + +static const u8 tm_change_map[] = { + [TM_CHANGED_TXPOWER_CTRL] = MT76_TM_ATTR_TX_POWER_CONTROL, + [TM_CHANGED_TXPOWER] = MT76_TM_ATTR_TX_POWER, + [TM_CHANGED_FREQ_OFFSET] = MT76_TM_ATTR_FREQ_OFFSET, +}; + +static const u32 reg_backup_list[] = { + MT_WF_PHY_RFINTF3_0(0), + MT_WF_PHY_RFINTF3_0(1), + MT_WF_PHY_RFINTF3_0(2), + MT_WF_PHY_RFINTF3_0(3), + MT_ANT_SWITCH_CON(2), + MT_ANT_SWITCH_CON(3), + MT_ANT_SWITCH_CON(4), + MT_ANT_SWITCH_CON(6), + MT_ANT_SWITCH_CON(7), + MT_ANT_SWITCH_CON(8), +}; + +static const struct { + u16 wf; + u16 reg; +} rf_backup_list[] = { + { 0, 0x48 }, + { 1, 0x48 }, + { 2, 0x48 }, + { 3, 0x48 }, +}; + +static int +mt7615_tm_set_tx_power(struct mt7615_phy *phy) +{ + struct mt7615_dev *dev = phy->dev; + struct mt76_phy *mphy = phy->mt76; + int i, ret, n_chains = hweight8(mphy->antenna_mask); + struct cfg80211_chan_def *chandef = &mphy->chandef; + int freq = chandef->center_freq1, len, target_chains; + u8 *data, *eep = (u8 *)dev->mt76.eeprom.data; + enum nl80211_band band = chandef->chan->band; + struct sk_buff *skb; + struct { + u8 center_chan; + u8 dbdc_idx; + u8 band; + u8 rsv; + } __packed req_hdr = { + .center_chan = ieee80211_frequency_to_channel(freq), + .band = band, + .dbdc_idx = phy != &dev->phy, + }; + u8 *tx_power = NULL; + + if (mphy->test.state != MT76_TM_STATE_OFF) + tx_power = mphy->test.tx_power; + + len = MT7615_EE_MAX - MT_EE_NIC_CONF_0; + skb = mt76_mcu_msg_alloc(&dev->mt76, NULL, sizeof(req_hdr) + len); + if (!skb) + return -ENOMEM; + + skb_put_data(skb, &req_hdr, sizeof(req_hdr)); + data = skb_put_data(skb, eep + MT_EE_NIC_CONF_0, len); + + target_chains = mt7615_ext_pa_enabled(dev, band) ? 1 : n_chains; + for (i = 0; i < target_chains; i++) { + ret = mt7615_eeprom_get_target_power_index(dev, chandef->chan, i); + if (ret < 0) { + dev_kfree_skb(skb); + return -EINVAL; + } + + if (tx_power && tx_power[i]) + data[ret - MT_EE_NIC_CONF_0] = tx_power[i]; + } + + return mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_EXT_CMD(SET_TX_POWER_CTRL), false); +} + +static void +mt7615_tm_reg_backup_restore(struct mt7615_phy *phy) +{ + struct mt7615_dev *dev = phy->dev; + u32 *b = phy->test.reg_backup; + int n_regs = ARRAY_SIZE(reg_backup_list); + int n_rf_regs = ARRAY_SIZE(rf_backup_list); + int i; + + if (phy->mt76->test.state == MT76_TM_STATE_OFF) { + for (i = 0; i < n_regs; i++) + mt76_wr(dev, reg_backup_list[i], b[i]); + + for (i = 0; i < n_rf_regs; i++) + mt7615_rf_wr(dev, rf_backup_list[i].wf, + rf_backup_list[i].reg, b[n_regs + i]); + return; + } + + if (b) + return; + + b = devm_kzalloc(dev->mt76.dev, 4 * (n_regs + n_rf_regs), + GFP_KERNEL); + if (!b) + return; + + phy->test.reg_backup = b; + for (i = 0; i < n_regs; i++) + b[i] = mt76_rr(dev, reg_backup_list[i]); + for (i = 0; i < n_rf_regs; i++) + b[n_regs + i] = mt7615_rf_rr(dev, rf_backup_list[i].wf, + rf_backup_list[i].reg); +} + +static void +mt7615_tm_init(struct mt7615_phy *phy) +{ + struct mt7615_dev *dev = phy->dev; + unsigned int total_flags = ~0; + + if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state)) + return; + + mt7615_mcu_set_sku_en(phy, phy->mt76->test.state == MT76_TM_STATE_OFF); + + mutex_unlock(&dev->mt76.mutex); + mt7615_set_channel(phy); + mt7615_ops.configure_filter(phy->mt76->hw, 0, &total_flags, 0); + mutex_lock(&dev->mt76.mutex); + + mt7615_tm_reg_backup_restore(phy); +} + +static void +mt7615_tm_set_rx_enable(struct mt7615_dev *dev, bool en) +{ + u32 rqcr_mask = (MT_ARB_RQCR_RX_START | + MT_ARB_RQCR_RXV_START | + MT_ARB_RQCR_RXV_R_EN | + MT_ARB_RQCR_RXV_T_EN) * + (BIT(0) | BIT(MT_ARB_RQCR_BAND_SHIFT)); + + if (en) { + mt76_clear(dev, MT_ARB_SCR, + MT_ARB_SCR_RX0_DISABLE | MT_ARB_SCR_RX1_DISABLE); + mt76_set(dev, MT_ARB_RQCR, rqcr_mask); + } else { + mt76_set(dev, MT_ARB_SCR, + MT_ARB_SCR_RX0_DISABLE | MT_ARB_SCR_RX1_DISABLE); + mt76_clear(dev, MT_ARB_RQCR, rqcr_mask); + } +} + +static void +mt7615_tm_set_tx_antenna(struct mt7615_phy *phy, bool en) +{ + struct mt7615_dev *dev = phy->dev; + struct mt76_testmode_data *td = &phy->mt76->test; + u8 mask = td->tx_antenna_mask; + int i; + + if (!mask) + return; + + if (!en) + mask = phy->mt76->chainmask; + + for (i = 0; i < 4; i++) { + mt76_rmw_field(dev, MT_WF_PHY_RFINTF3_0(i), + MT_WF_PHY_RFINTF3_0_ANT, + (mask & BIT(i)) ? 0 : 0xa); + } + + /* 2.4 GHz band */ + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(3), MT_ANT_SWITCH_CON_MODE(0), + (mask & BIT(0)) ? 0x8 : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(4), MT_ANT_SWITCH_CON_MODE(2), + (mask & BIT(1)) ? 0xe : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(6), MT_ANT_SWITCH_CON_MODE1(0), + (mask & BIT(2)) ? 0x0 : 0xf); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(7), MT_ANT_SWITCH_CON_MODE1(2), + (mask & BIT(3)) ? 0x6 : 0xf); + + /* 5 GHz band */ + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(4), MT_ANT_SWITCH_CON_MODE(1), + (mask & BIT(0)) ? 0xd : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(2), MT_ANT_SWITCH_CON_MODE(3), + (mask & BIT(1)) ? 0x13 : 0x1b); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(7), MT_ANT_SWITCH_CON_MODE1(1), + (mask & BIT(2)) ? 0x5 : 0xf); + mt76_rmw_field(dev, MT_ANT_SWITCH_CON(8), MT_ANT_SWITCH_CON_MODE1(3), + (mask & BIT(3)) ? 0xb : 0xf); + + for (i = 0; i < 4; i++) { + u32 val; + + val = mt7615_rf_rr(dev, i, 0x48); + val &= ~(0x3ff << 20); + if (mask & BIT(i)) + val |= 3 << 20; + else + val |= (2 << 28) | (2 << 26) | (8 << 20); + mt7615_rf_wr(dev, i, 0x48, val); + } +} + +static void +mt7615_tm_set_tx_frames(struct mt7615_phy *phy, bool en) +{ + struct mt7615_dev *dev = phy->dev; + struct ieee80211_tx_info *info; + struct sk_buff *skb = phy->mt76->test.tx_skb; + + mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH)); + mt7615_tm_set_tx_antenna(phy, en); + mt7615_tm_set_rx_enable(dev, !en); + if (!en || !skb) + return; + + info = IEEE80211_SKB_CB(skb); + info->control.vif = phy->monitor_vif; +} + +static void +mt7615_tm_update_params(struct mt7615_phy *phy, u32 changed) +{ + struct mt7615_dev *dev = phy->dev; + struct mt76_testmode_data *td = &phy->mt76->test; + bool en = phy->mt76->test.state != MT76_TM_STATE_OFF; + + if (changed & BIT(TM_CHANGED_TXPOWER_CTRL)) + mt7615_mcu_set_test_param(dev, MCU_ATE_SET_TX_POWER_CONTROL, + en, en && td->tx_power_control); + if (changed & BIT(TM_CHANGED_FREQ_OFFSET)) + mt7615_mcu_set_test_param(dev, MCU_ATE_SET_FREQ_OFFSET, + en, en ? td->freq_offset : 0); + if (changed & BIT(TM_CHANGED_TXPOWER)) + mt7615_tm_set_tx_power(phy); +} + +static int +mt7615_tm_set_state(struct mt76_phy *mphy, enum mt76_testmode_state state) +{ + struct mt7615_phy *phy = mphy->priv; + struct mt76_testmode_data *td = &mphy->test; + enum mt76_testmode_state prev_state = td->state; + + mphy->test.state = state; + + if (prev_state == MT76_TM_STATE_TX_FRAMES) + mt7615_tm_set_tx_frames(phy, false); + else if (state == MT76_TM_STATE_TX_FRAMES) + mt7615_tm_set_tx_frames(phy, true); + + if (state <= MT76_TM_STATE_IDLE) + mt7615_tm_init(phy); + + if ((state == MT76_TM_STATE_IDLE && + prev_state == MT76_TM_STATE_OFF) || + (state == MT76_TM_STATE_OFF && + prev_state == MT76_TM_STATE_IDLE)) { + u32 changed = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(tm_change_map); i++) { + u16 cur = tm_change_map[i]; + + if (td->param_set[cur / 32] & BIT(cur % 32)) + changed |= BIT(i); + } + + mt7615_tm_update_params(phy, changed); + } + + return 0; +} + +static int +mt7615_tm_set_params(struct mt76_phy *mphy, struct nlattr **tb, + enum mt76_testmode_state new_state) +{ + struct mt76_testmode_data *td = &mphy->test; + struct mt7615_phy *phy = mphy->priv; + u32 changed = 0; + int i; + + BUILD_BUG_ON(NUM_TM_CHANGED >= 32); + + if (new_state == MT76_TM_STATE_OFF || + td->state == MT76_TM_STATE_OFF) + return 0; + + if (td->tx_antenna_mask & ~mphy->chainmask) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(tm_change_map); i++) { + if (tb[tm_change_map[i]]) + changed |= BIT(i); + } + + mt7615_tm_update_params(phy, changed); + + return 0; +} + +static int +mt7615_tm_dump_stats(struct mt76_phy *mphy, struct sk_buff *msg) +{ + struct mt7615_phy *phy = mphy->priv; + void *rx, *rssi; + int i; + + rx = nla_nest_start(msg, MT76_TM_STATS_ATTR_LAST_RX); + if (!rx) + return -ENOMEM; + + if (nla_put_s32(msg, MT76_TM_RX_ATTR_FREQ_OFFSET, phy->test.last_freq_offset)) + return -ENOMEM; + + rssi = nla_nest_start(msg, MT76_TM_RX_ATTR_RCPI); + if (!rssi) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(phy->test.last_rcpi); i++) + if (nla_put_u8(msg, i, phy->test.last_rcpi[i])) + return -ENOMEM; + + nla_nest_end(msg, rssi); + + rssi = nla_nest_start(msg, MT76_TM_RX_ATTR_IB_RSSI); + if (!rssi) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(phy->test.last_ib_rssi); i++) + if (nla_put_s8(msg, i, phy->test.last_ib_rssi[i])) + return -ENOMEM; + + nla_nest_end(msg, rssi); + + rssi = nla_nest_start(msg, MT76_TM_RX_ATTR_WB_RSSI); + if (!rssi) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(phy->test.last_wb_rssi); i++) + if (nla_put_s8(msg, i, phy->test.last_wb_rssi[i])) + return -ENOMEM; + + nla_nest_end(msg, rssi); + + nla_nest_end(msg, rx); + + return 0; +} + +const struct mt76_testmode_ops mt7615_testmode_ops = { + .set_state = mt7615_tm_set_state, + .set_params = mt7615_tm_set_params, + .dump_stats = mt7615_tm_dump_stats, +}; -- cgit v1.2.3