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/ath/ath12k/htc.h | 316 ++++++++++++++++++++++++++++++++++ 1 file changed, 316 insertions(+) create mode 100644 drivers/net/wireless/ath/ath12k/htc.h (limited to 'drivers/net/wireless/ath/ath12k/htc.h') diff --git a/drivers/net/wireless/ath/ath12k/htc.h b/drivers/net/wireless/ath/ath12k/htc.h new file mode 100644 index 000000000..7e3dccc7c --- /dev/null +++ b/drivers/net/wireless/ath/ath12k/htc.h @@ -0,0 +1,316 @@ +/* SPDX-License-Identifier: BSD-3-Clause-Clear */ +/* + * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. + * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef ATH12K_HTC_H +#define ATH12K_HTC_H + +#include +#include +#include +#include +#include + +struct ath12k_base; + +#define HTC_HDR_ENDPOINTID GENMASK(7, 0) +#define HTC_HDR_FLAGS GENMASK(15, 8) +#define HTC_HDR_PAYLOADLEN GENMASK(31, 16) +#define HTC_HDR_CONTROLBYTES0 GENMASK(7, 0) +#define HTC_HDR_CONTROLBYTES1 GENMASK(15, 8) +#define HTC_HDR_RESERVED GENMASK(31, 16) + +#define HTC_SVC_MSG_SERVICE_ID GENMASK(31, 16) +#define HTC_SVC_MSG_CONNECTIONFLAGS GENMASK(15, 0) +#define HTC_SVC_MSG_SERVICEMETALENGTH GENMASK(23, 16) +#define HTC_READY_MSG_CREDITCOUNT GENMASK(31, 16) +#define HTC_READY_MSG_CREDITSIZE GENMASK(15, 0) +#define HTC_READY_MSG_MAXENDPOINTS GENMASK(23, 16) + +#define HTC_READY_EX_MSG_HTCVERSION GENMASK(7, 0) +#define HTC_READY_EX_MSG_MAXMSGSPERHTCBUNDLE GENMASK(15, 8) + +#define HTC_SVC_RESP_MSG_SERVICEID GENMASK(31, 16) +#define HTC_SVC_RESP_MSG_STATUS GENMASK(7, 0) +#define HTC_SVC_RESP_MSG_ENDPOINTID GENMASK(15, 8) +#define HTC_SVC_RESP_MSG_MAXMSGSIZE GENMASK(31, 16) +#define HTC_SVC_RESP_MSG_SERVICEMETALENGTH GENMASK(7, 0) + +#define HTC_MSG_MESSAGEID GENMASK(15, 0) +#define HTC_SETUP_COMPLETE_EX_MSG_SETUPFLAGS GENMASK(31, 0) +#define HTC_SETUP_COMPLETE_EX_MSG_MAXMSGSPERBUNDLEDRECV GENMASK(7, 0) +#define HTC_SETUP_COMPLETE_EX_MSG_RSVD0 GENMASK(15, 8) +#define HTC_SETUP_COMPLETE_EX_MSG_RSVD1 GENMASK(23, 16) +#define HTC_SETUP_COMPLETE_EX_MSG_RSVD2 GENMASK(31, 24) + +enum ath12k_htc_tx_flags { + ATH12K_HTC_FLAG_NEED_CREDIT_UPDATE = 0x01, + ATH12K_HTC_FLAG_SEND_BUNDLE = 0x02 +}; + +enum ath12k_htc_rx_flags { + ATH12K_HTC_FLAG_TRAILER_PRESENT = 0x02, + ATH12K_HTC_FLAG_BUNDLE_MASK = 0xF0 +}; + +struct ath12k_htc_hdr { + __le32 htc_info; + __le32 ctrl_info; +} __packed __aligned(4); + +enum ath12k_htc_msg_id { + ATH12K_HTC_MSG_READY_ID = 1, + ATH12K_HTC_MSG_CONNECT_SERVICE_ID = 2, + ATH12K_HTC_MSG_CONNECT_SERVICE_RESP_ID = 3, + ATH12K_HTC_MSG_SETUP_COMPLETE_ID = 4, + ATH12K_HTC_MSG_SETUP_COMPLETE_EX_ID = 5, + ATH12K_HTC_MSG_SEND_SUSPEND_COMPLETE = 6, + ATH12K_HTC_MSG_NACK_SUSPEND = 7, + ATH12K_HTC_MSG_WAKEUP_FROM_SUSPEND_ID = 8, +}; + +enum ath12k_htc_version { + ATH12K_HTC_VERSION_2P0 = 0x00, /* 2.0 */ + ATH12K_HTC_VERSION_2P1 = 0x01, /* 2.1 */ +}; + +enum ath12k_htc_conn_flag_threshold_level { + ATH12K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_FOURTH, + ATH12K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_HALF, + ATH12K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_THREE_FOURTHS, + ATH12K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_UNITY, +}; + +#define ATH12K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_MASK GENMASK(1, 0) +#define ATH12K_HTC_CONN_FLAGS_REDUCE_CREDIT_DRIBBLE BIT(2) +#define ATH12K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL BIT(3) +#define ATH12K_HTC_CONN_FLAGS_RECV_ALLOC GENMASK(15, 8) + +enum ath12k_htc_conn_svc_status { + ATH12K_HTC_CONN_SVC_STATUS_SUCCESS = 0, + ATH12K_HTC_CONN_SVC_STATUS_NOT_FOUND = 1, + ATH12K_HTC_CONN_SVC_STATUS_FAILED = 2, + ATH12K_HTC_CONN_SVC_STATUS_NO_RESOURCES = 3, + ATH12K_HTC_CONN_SVC_STATUS_NO_MORE_EP = 4 +}; + +struct ath12k_htc_ready { + __le32 id_credit_count; + __le32 size_ep; +} __packed; + +struct ath12k_htc_ready_extended { + struct ath12k_htc_ready base; + __le32 ver_bundle; +} __packed; + +struct ath12k_htc_conn_svc { + __le32 msg_svc_id; + __le32 flags_len; +} __packed; + +struct ath12k_htc_conn_svc_resp { + __le32 msg_svc_id; + __le32 flags_len; + __le32 svc_meta_pad; +} __packed; + +struct ath12k_htc_setup_complete_extended { + __le32 msg_id; + __le32 flags; + __le32 max_msgs_per_bundled_recv; +} __packed; + +struct ath12k_htc_msg { + __le32 msg_svc_id; + __le32 flags_len; +} __packed __aligned(4); + +enum ath12k_htc_record_id { + ATH12K_HTC_RECORD_NULL = 0, + ATH12K_HTC_RECORD_CREDITS = 1 +}; + +struct ath12k_htc_record_hdr { + u8 id; /* @enum ath12k_htc_record_id */ + u8 len; + u8 pad0; + u8 pad1; +} __packed; + +struct ath12k_htc_credit_report { + u8 eid; /* @enum ath12k_htc_ep_id */ + u8 credits; + u8 pad0; + u8 pad1; +} __packed; + +struct ath12k_htc_record { + struct ath12k_htc_record_hdr hdr; + struct ath12k_htc_credit_report credit_report[]; +} __packed __aligned(4); + +/* HTC FRAME structure layout draft + * + * note: the trailer offset is dynamic depending + * on payload length. this is only a struct layout draft + * + *======================================================= + * + * HTC HEADER + * + *======================================================= + * | + * HTC message | payload + * (variable length) | (variable length) + *======================================================= + * + * HTC Record + * + *======================================================= + */ + +enum ath12k_htc_svc_gid { + ATH12K_HTC_SVC_GRP_RSVD = 0, + ATH12K_HTC_SVC_GRP_WMI = 1, + ATH12K_HTC_SVC_GRP_NMI = 2, + ATH12K_HTC_SVC_GRP_HTT = 3, + ATH12K_HTC_SVC_GRP_CFG = 4, + ATH12K_HTC_SVC_GRP_IPA = 5, + ATH12K_HTC_SVC_GRP_PKTLOG = 6, + + ATH12K_HTC_SVC_GRP_TEST = 254, + ATH12K_HTC_SVC_GRP_LAST = 255, +}; + +#define SVC(group, idx) \ + (int)(((int)(group) << 8) | (int)(idx)) + +enum ath12k_htc_svc_id { + /* NOTE: service ID of 0x0000 is reserved and should never be used */ + ATH12K_HTC_SVC_ID_RESERVED = 0x0000, + ATH12K_HTC_SVC_ID_UNUSED = ATH12K_HTC_SVC_ID_RESERVED, + + ATH12K_HTC_SVC_ID_RSVD_CTRL = SVC(ATH12K_HTC_SVC_GRP_RSVD, 1), + ATH12K_HTC_SVC_ID_WMI_CONTROL = SVC(ATH12K_HTC_SVC_GRP_WMI, 0), + ATH12K_HTC_SVC_ID_WMI_DATA_BE = SVC(ATH12K_HTC_SVC_GRP_WMI, 1), + ATH12K_HTC_SVC_ID_WMI_DATA_BK = SVC(ATH12K_HTC_SVC_GRP_WMI, 2), + ATH12K_HTC_SVC_ID_WMI_DATA_VI = SVC(ATH12K_HTC_SVC_GRP_WMI, 3), + ATH12K_HTC_SVC_ID_WMI_DATA_VO = SVC(ATH12K_HTC_SVC_GRP_WMI, 4), + ATH12K_HTC_SVC_ID_WMI_CONTROL_MAC1 = SVC(ATH12K_HTC_SVC_GRP_WMI, 5), + ATH12K_HTC_SVC_ID_WMI_CONTROL_MAC2 = SVC(ATH12K_HTC_SVC_GRP_WMI, 6), + ATH12K_HTC_SVC_ID_WMI_CONTROL_DIAG = SVC(ATH12K_HTC_SVC_GRP_WMI, 7), + + ATH12K_HTC_SVC_ID_NMI_CONTROL = SVC(ATH12K_HTC_SVC_GRP_NMI, 0), + ATH12K_HTC_SVC_ID_NMI_DATA = SVC(ATH12K_HTC_SVC_GRP_NMI, 1), + + ATH12K_HTC_SVC_ID_HTT_DATA_MSG = SVC(ATH12K_HTC_SVC_GRP_HTT, 0), + + /* raw stream service (i.e. flash, tcmd, calibration apps) */ + ATH12K_HTC_SVC_ID_TEST_RAW_STREAMS = SVC(ATH12K_HTC_SVC_GRP_TEST, 0), + ATH12K_HTC_SVC_ID_IPA_TX = SVC(ATH12K_HTC_SVC_GRP_IPA, 0), + ATH12K_HTC_SVC_ID_PKT_LOG = SVC(ATH12K_HTC_SVC_GRP_PKTLOG, 0), +}; + +#undef SVC + +enum ath12k_htc_ep_id { + ATH12K_HTC_EP_UNUSED = -1, + ATH12K_HTC_EP_0 = 0, + ATH12K_HTC_EP_1 = 1, + ATH12K_HTC_EP_2, + ATH12K_HTC_EP_3, + ATH12K_HTC_EP_4, + ATH12K_HTC_EP_5, + ATH12K_HTC_EP_6, + ATH12K_HTC_EP_7, + ATH12K_HTC_EP_8, + ATH12K_HTC_EP_COUNT, +}; + +struct ath12k_htc_ep_ops { + void (*ep_tx_complete)(struct ath12k_base *ab, struct sk_buff *skb); + void (*ep_rx_complete)(struct ath12k_base *ab, struct sk_buff *skb); + void (*ep_tx_credits)(struct ath12k_base *ab); +}; + +/* service connection information */ +struct ath12k_htc_svc_conn_req { + u16 service_id; + struct ath12k_htc_ep_ops ep_ops; + int max_send_queue_depth; +}; + +/* service connection response information */ +struct ath12k_htc_svc_conn_resp { + u8 buffer_len; + u8 actual_len; + enum ath12k_htc_ep_id eid; + unsigned int max_msg_len; + u8 connect_resp_code; +}; + +#define ATH12K_NUM_CONTROL_TX_BUFFERS 2 +#define ATH12K_HTC_MAX_LEN 4096 +#define ATH12K_HTC_MAX_CTRL_MSG_LEN 256 +#define ATH12K_HTC_WAIT_TIMEOUT_HZ (1 * HZ) +#define ATH12K_HTC_CONTROL_BUFFER_SIZE (ATH12K_HTC_MAX_CTRL_MSG_LEN + \ + sizeof(struct ath12k_htc_hdr)) +#define ATH12K_HTC_CONN_SVC_TIMEOUT_HZ (1 * HZ) +#define ATH12K_HTC_MAX_SERVICE_ALLOC_ENTRIES 8 + +struct ath12k_htc_ep { + struct ath12k_htc *htc; + enum ath12k_htc_ep_id eid; + enum ath12k_htc_svc_id service_id; + struct ath12k_htc_ep_ops ep_ops; + + int max_tx_queue_depth; + int max_ep_message_len; + u8 ul_pipe_id; + u8 dl_pipe_id; + + u8 seq_no; /* for debugging */ + int tx_credits; + bool tx_credit_flow_enabled; +}; + +struct ath12k_htc_svc_tx_credits { + u16 service_id; + u8 credit_allocation; +}; + +struct ath12k_htc { + struct ath12k_base *ab; + struct ath12k_htc_ep endpoint[ATH12K_HTC_EP_COUNT]; + + /* protects endpoints */ + spinlock_t tx_lock; + + u8 control_resp_buffer[ATH12K_HTC_MAX_CTRL_MSG_LEN]; + int control_resp_len; + + struct completion ctl_resp; + + int total_transmit_credits; + struct ath12k_htc_svc_tx_credits + service_alloc_table[ATH12K_HTC_MAX_SERVICE_ALLOC_ENTRIES]; + int target_credit_size; + u8 wmi_ep_count; +}; + +int ath12k_htc_init(struct ath12k_base *ar); +int ath12k_htc_wait_target(struct ath12k_htc *htc); +int ath12k_htc_start(struct ath12k_htc *htc); +int ath12k_htc_connect_service(struct ath12k_htc *htc, + struct ath12k_htc_svc_conn_req *conn_req, + struct ath12k_htc_svc_conn_resp *conn_resp); +int ath12k_htc_send(struct ath12k_htc *htc, enum ath12k_htc_ep_id eid, + struct sk_buff *packet); +struct sk_buff *ath12k_htc_alloc_skb(struct ath12k_base *ar, int size); +void ath12k_htc_rx_completion_handler(struct ath12k_base *ar, + struct sk_buff *skb); + +#endif -- cgit v1.2.3