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/realtek/rtw89/chan.c | 267 ++++++++++++++++++++++++++++++ 1 file changed, 267 insertions(+) create mode 100644 drivers/net/wireless/realtek/rtw89/chan.c (limited to 'drivers/net/wireless/realtek/rtw89/chan.c') diff --git a/drivers/net/wireless/realtek/rtw89/chan.c b/drivers/net/wireless/realtek/rtw89/chan.c new file mode 100644 index 000000000..90596806b --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/chan.c @@ -0,0 +1,267 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2020-2022 Realtek Corporation + */ + +#include "chan.h" +#include "debug.h" +#include "util.h" + +static enum rtw89_subband rtw89_get_subband_type(enum rtw89_band band, + u8 center_chan) +{ + switch (band) { + default: + case RTW89_BAND_2G: + switch (center_chan) { + default: + case 1 ... 14: + return RTW89_CH_2G; + } + case RTW89_BAND_5G: + switch (center_chan) { + default: + case 36 ... 64: + return RTW89_CH_5G_BAND_1; + case 100 ... 144: + return RTW89_CH_5G_BAND_3; + case 149 ... 177: + return RTW89_CH_5G_BAND_4; + } + case RTW89_BAND_6G: + switch (center_chan) { + default: + case 1 ... 29: + return RTW89_CH_6G_BAND_IDX0; + case 33 ... 61: + return RTW89_CH_6G_BAND_IDX1; + case 65 ... 93: + return RTW89_CH_6G_BAND_IDX2; + case 97 ... 125: + return RTW89_CH_6G_BAND_IDX3; + case 129 ... 157: + return RTW89_CH_6G_BAND_IDX4; + case 161 ... 189: + return RTW89_CH_6G_BAND_IDX5; + case 193 ... 221: + return RTW89_CH_6G_BAND_IDX6; + case 225 ... 253: + return RTW89_CH_6G_BAND_IDX7; + } + } +} + +static enum rtw89_sc_offset rtw89_get_primary_chan_idx(enum rtw89_bandwidth bw, + u32 center_freq, + u32 primary_freq) +{ + u8 primary_chan_idx; + u32 offset; + + switch (bw) { + default: + case RTW89_CHANNEL_WIDTH_20: + primary_chan_idx = RTW89_SC_DONT_CARE; + break; + case RTW89_CHANNEL_WIDTH_40: + if (primary_freq > center_freq) + primary_chan_idx = RTW89_SC_20_UPPER; + else + primary_chan_idx = RTW89_SC_20_LOWER; + break; + case RTW89_CHANNEL_WIDTH_80: + case RTW89_CHANNEL_WIDTH_160: + if (primary_freq > center_freq) { + offset = (primary_freq - center_freq - 10) / 20; + primary_chan_idx = RTW89_SC_20_UPPER + offset * 2; + } else { + offset = (center_freq - primary_freq - 10) / 20; + primary_chan_idx = RTW89_SC_20_LOWER + offset * 2; + } + break; + } + + return primary_chan_idx; +} + +void rtw89_chan_create(struct rtw89_chan *chan, u8 center_chan, u8 primary_chan, + enum rtw89_band band, enum rtw89_bandwidth bandwidth) +{ + enum nl80211_band nl_band = rtw89_hw_to_nl80211_band(band); + u32 center_freq, primary_freq; + + memset(chan, 0, sizeof(*chan)); + chan->channel = center_chan; + chan->primary_channel = primary_chan; + chan->band_type = band; + chan->band_width = bandwidth; + + center_freq = ieee80211_channel_to_frequency(center_chan, nl_band); + primary_freq = ieee80211_channel_to_frequency(primary_chan, nl_band); + + chan->freq = center_freq; + chan->subband_type = rtw89_get_subband_type(band, center_chan); + chan->pri_ch_idx = rtw89_get_primary_chan_idx(bandwidth, center_freq, + primary_freq); +} + +bool rtw89_assign_entity_chan(struct rtw89_dev *rtwdev, + enum rtw89_sub_entity_idx idx, + const struct rtw89_chan *new) +{ + struct rtw89_hal *hal = &rtwdev->hal; + struct rtw89_chan *chan = &hal->sub[idx].chan; + struct rtw89_chan_rcd *rcd = &hal->sub[idx].rcd; + bool band_changed; + + rcd->prev_primary_channel = chan->primary_channel; + rcd->prev_band_type = chan->band_type; + band_changed = new->band_type != chan->band_type; + + *chan = *new; + return band_changed; +} + +static void __rtw89_config_entity_chandef(struct rtw89_dev *rtwdev, + enum rtw89_sub_entity_idx idx, + const struct cfg80211_chan_def *chandef, + bool from_stack) +{ + struct rtw89_hal *hal = &rtwdev->hal; + + hal->sub[idx].chandef = *chandef; + + if (from_stack) + set_bit(idx, hal->entity_map); +} + +void rtw89_config_entity_chandef(struct rtw89_dev *rtwdev, + enum rtw89_sub_entity_idx idx, + const struct cfg80211_chan_def *chandef) +{ + __rtw89_config_entity_chandef(rtwdev, idx, chandef, true); +} + +static void rtw89_config_default_chandef(struct rtw89_dev *rtwdev) +{ + struct cfg80211_chan_def chandef = {0}; + + rtw89_get_default_chandef(&chandef); + __rtw89_config_entity_chandef(rtwdev, RTW89_SUB_ENTITY_0, &chandef, false); +} + +void rtw89_entity_init(struct rtw89_dev *rtwdev) +{ + struct rtw89_hal *hal = &rtwdev->hal; + + bitmap_zero(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + rtw89_config_default_chandef(rtwdev); +} + +enum rtw89_entity_mode rtw89_entity_recalc(struct rtw89_dev *rtwdev) +{ + struct rtw89_hal *hal = &rtwdev->hal; + enum rtw89_entity_mode mode; + u8 weight; + + weight = bitmap_weight(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + switch (weight) { + default: + rtw89_warn(rtwdev, "unknown ent chan weight: %d\n", weight); + bitmap_zero(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + fallthrough; + case 0: + rtw89_config_default_chandef(rtwdev); + fallthrough; + case 1: + mode = RTW89_ENTITY_MODE_SCC; + break; + } + + rtw89_set_entity_mode(rtwdev, mode); + return mode; +} + +int rtw89_chanctx_ops_add(struct rtw89_dev *rtwdev, + struct ieee80211_chanctx_conf *ctx) +{ + struct rtw89_hal *hal = &rtwdev->hal; + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + const struct rtw89_chip_info *chip = rtwdev->chip; + u8 idx; + + idx = find_first_zero_bit(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY); + if (idx >= chip->support_chanctx_num) + return -ENOENT; + + rtw89_config_entity_chandef(rtwdev, idx, &ctx->def); + rtw89_set_channel(rtwdev); + cfg->idx = idx; + hal->sub[idx].cfg = cfg; + return 0; +} + +void rtw89_chanctx_ops_remove(struct rtw89_dev *rtwdev, + struct ieee80211_chanctx_conf *ctx) +{ + struct rtw89_hal *hal = &rtwdev->hal; + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + struct rtw89_vif *rtwvif; + u8 drop, roll; + + drop = cfg->idx; + if (drop != RTW89_SUB_ENTITY_0) + goto out; + + roll = find_next_bit(hal->entity_map, NUM_OF_RTW89_SUB_ENTITY, drop + 1); + + /* Follow rtw89_config_default_chandef() when rtw89_entity_recalc(). */ + if (roll == NUM_OF_RTW89_SUB_ENTITY) + goto out; + + /* RTW89_SUB_ENTITY_0 is going to release, and another exists. + * Make another roll down to RTW89_SUB_ENTITY_0 to replace. + */ + hal->sub[roll].cfg->idx = RTW89_SUB_ENTITY_0; + hal->sub[RTW89_SUB_ENTITY_0] = hal->sub[roll]; + + rtw89_for_each_rtwvif(rtwdev, rtwvif) { + if (rtwvif->sub_entity_idx == roll) + rtwvif->sub_entity_idx = RTW89_SUB_ENTITY_0; + } + + drop = roll; + +out: + clear_bit(drop, hal->entity_map); + rtw89_set_channel(rtwdev); +} + +void rtw89_chanctx_ops_change(struct rtw89_dev *rtwdev, + struct ieee80211_chanctx_conf *ctx, + u32 changed) +{ + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + u8 idx = cfg->idx; + + if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH) { + rtw89_config_entity_chandef(rtwdev, idx, &ctx->def); + rtw89_set_channel(rtwdev); + } +} + +int rtw89_chanctx_ops_assign_vif(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, + struct ieee80211_chanctx_conf *ctx) +{ + struct rtw89_chanctx_cfg *cfg = (struct rtw89_chanctx_cfg *)ctx->drv_priv; + + rtwvif->sub_entity_idx = cfg->idx; + return 0; +} + +void rtw89_chanctx_ops_unassign_vif(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, + struct ieee80211_chanctx_conf *ctx) +{ + rtwvif->sub_entity_idx = RTW89_SUB_ENTITY_0; +} -- cgit v1.2.3