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/rtw88/pci.h | 279 +++++++++++++++++++++++++++++++ 1 file changed, 279 insertions(+) create mode 100644 drivers/net/wireless/realtek/rtw88/pci.h (limited to 'drivers/net/wireless/realtek/rtw88/pci.h') diff --git a/drivers/net/wireless/realtek/rtw88/pci.h b/drivers/net/wireless/realtek/rtw88/pci.h new file mode 100644 index 000000000..0c37efd8c --- /dev/null +++ b/drivers/net/wireless/realtek/rtw88/pci.h @@ -0,0 +1,279 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* Copyright(c) 2018-2019 Realtek Corporation + */ + +#ifndef __RTK_PCI_H_ +#define __RTK_PCI_H_ + +#include "main.h" + +#define RTK_DEFAULT_TX_DESC_NUM 128 +#define RTK_BEQ_TX_DESC_NUM 256 + +#define RTK_MAX_RX_DESC_NUM 512 +/* 11K + rx desc size */ +#define RTK_PCI_RX_BUF_SIZE (11454 + 24) + +#define RTK_PCI_CTRL 0x300 +#define BIT_RST_TRXDMA_INTF BIT(20) +#define BIT_RX_TAG_EN BIT(15) +#define REG_DBI_WDATA_V1 0x03E8 +#define REG_DBI_RDATA_V1 0x03EC +#define REG_DBI_FLAG_V1 0x03F0 +#define BIT_DBI_RFLAG BIT(17) +#define BIT_DBI_WFLAG BIT(16) +#define BITS_DBI_WREN GENMASK(15, 12) +#define BITS_DBI_ADDR_MASK GENMASK(11, 2) + +#define REG_MDIO_V1 0x03F4 +#define REG_PCIE_MIX_CFG 0x03F8 +#define BITS_MDIO_ADDR_MASK GENMASK(4, 0) +#define BIT_MDIO_WFLAG_V1 BIT(5) +#define RTW_PCI_MDIO_PG_SZ BIT(5) +#define RTW_PCI_MDIO_PG_OFFS_G1 0 +#define RTW_PCI_MDIO_PG_OFFS_G2 2 +#define RTW_PCI_WR_RETRY_CNT 20 + +#define RTK_PCIE_LINK_CFG 0x0719 +#define BIT_CLKREQ_SW_EN BIT(4) +#define BIT_L1_SW_EN BIT(3) +#define BIT_CLKREQ_N_PAD BIT(0) +#define RTK_PCIE_CLKDLY_CTRL 0x0725 + +#define BIT_PCI_BCNQ_FLAG BIT(4) +#define RTK_PCI_TXBD_DESA_BCNQ 0x308 +#define RTK_PCI_TXBD_DESA_H2CQ 0x1320 +#define RTK_PCI_TXBD_DESA_MGMTQ 0x310 +#define RTK_PCI_TXBD_DESA_BKQ 0x330 +#define RTK_PCI_TXBD_DESA_BEQ 0x328 +#define RTK_PCI_TXBD_DESA_VIQ 0x320 +#define RTK_PCI_TXBD_DESA_VOQ 0x318 +#define RTK_PCI_TXBD_DESA_HI0Q 0x340 +#define RTK_PCI_RXBD_DESA_MPDUQ 0x338 + +#define TRX_BD_IDX_MASK GENMASK(11, 0) +#define TRX_BD_HW_IDX_MASK GENMASK(27, 16) + +/* BCNQ is specialized for rsvd page, does not need to specify a number */ +#define RTK_PCI_TXBD_NUM_H2CQ 0x1328 +#define RTK_PCI_TXBD_NUM_MGMTQ 0x380 +#define RTK_PCI_TXBD_NUM_BKQ 0x38A +#define RTK_PCI_TXBD_NUM_BEQ 0x388 +#define RTK_PCI_TXBD_NUM_VIQ 0x386 +#define RTK_PCI_TXBD_NUM_VOQ 0x384 +#define RTK_PCI_TXBD_NUM_HI0Q 0x38C +#define RTK_PCI_RXBD_NUM_MPDUQ 0x382 +#define RTK_PCI_TXBD_IDX_H2CQ 0x132C +#define RTK_PCI_TXBD_IDX_MGMTQ 0x3B0 +#define RTK_PCI_TXBD_IDX_BKQ 0x3AC +#define RTK_PCI_TXBD_IDX_BEQ 0x3A8 +#define RTK_PCI_TXBD_IDX_VIQ 0x3A4 +#define RTK_PCI_TXBD_IDX_VOQ 0x3A0 +#define RTK_PCI_TXBD_IDX_HI0Q 0x3B8 +#define RTK_PCI_RXBD_IDX_MPDUQ 0x3B4 + +#define RTK_PCI_TXBD_RWPTR_CLR 0x39C +#define RTK_PCI_TXBD_H2CQ_CSR 0x1330 + +#define BIT_CLR_H2CQ_HOST_IDX BIT(16) +#define BIT_CLR_H2CQ_HW_IDX BIT(8) + +#define RTK_PCI_HIMR0 0x0B0 +#define RTK_PCI_HISR0 0x0B4 +#define RTK_PCI_HIMR1 0x0B8 +#define RTK_PCI_HISR1 0x0BC +#define RTK_PCI_HIMR2 0x10B0 +#define RTK_PCI_HISR2 0x10B4 +#define RTK_PCI_HIMR3 0x10B8 +#define RTK_PCI_HISR3 0x10BC +/* IMR 0 */ +#define IMR_TIMER2 BIT(31) +#define IMR_TIMER1 BIT(30) +#define IMR_PSTIMEOUT BIT(29) +#define IMR_GTINT4 BIT(28) +#define IMR_GTINT3 BIT(27) +#define IMR_TBDER BIT(26) +#define IMR_TBDOK BIT(25) +#define IMR_TSF_BIT32_TOGGLE BIT(24) +#define IMR_BCNDMAINT0 BIT(20) +#define IMR_BCNDOK0 BIT(16) +#define IMR_HSISR_IND_ON_INT BIT(15) +#define IMR_BCNDMAINT_E BIT(14) +#define IMR_ATIMEND BIT(12) +#define IMR_HISR1_IND_INT BIT(11) +#define IMR_C2HCMD BIT(10) +#define IMR_CPWM2 BIT(9) +#define IMR_CPWM BIT(8) +#define IMR_HIGHDOK BIT(7) +#define IMR_MGNTDOK BIT(6) +#define IMR_BKDOK BIT(5) +#define IMR_BEDOK BIT(4) +#define IMR_VIDOK BIT(3) +#define IMR_VODOK BIT(2) +#define IMR_RDU BIT(1) +#define IMR_ROK BIT(0) +/* IMR 1 */ +#define IMR_TXFIFO_TH_INT BIT(30) +#define IMR_BTON_STS_UPDATE BIT(29) +#define IMR_MCUERR BIT(28) +#define IMR_BCNDMAINT7 BIT(27) +#define IMR_BCNDMAINT6 BIT(26) +#define IMR_BCNDMAINT5 BIT(25) +#define IMR_BCNDMAINT4 BIT(24) +#define IMR_BCNDMAINT3 BIT(23) +#define IMR_BCNDMAINT2 BIT(22) +#define IMR_BCNDMAINT1 BIT(21) +#define IMR_BCNDOK7 BIT(20) +#define IMR_BCNDOK6 BIT(19) +#define IMR_BCNDOK5 BIT(18) +#define IMR_BCNDOK4 BIT(17) +#define IMR_BCNDOK3 BIT(16) +#define IMR_BCNDOK2 BIT(15) +#define IMR_BCNDOK1 BIT(14) +#define IMR_ATIMEND_E BIT(13) +#define IMR_ATIMEND BIT(12) +#define IMR_TXERR BIT(11) +#define IMR_RXERR BIT(10) +#define IMR_TXFOVW BIT(9) +#define IMR_RXFOVW BIT(8) +#define IMR_CPU_MGQ_TXDONE BIT(5) +#define IMR_PS_TIMER_C BIT(4) +#define IMR_PS_TIMER_B BIT(3) +#define IMR_PS_TIMER_A BIT(2) +#define IMR_CPUMGQ_TX_TIMER BIT(1) +/* IMR 3 */ +#define IMR_H2CDOK BIT(16) + +enum rtw_pci_flags { + RTW_PCI_FLAG_NAPI_RUNNING, + + NUM_OF_RTW_PCI_FLAGS, +}; + +/* one element is reserved to know if the ring is closed */ +static inline int avail_desc(u32 wp, u32 rp, u32 len) +{ + if (rp > wp) + return rp - wp - 1; + else + return len - wp + rp - 1; +} + +#define RTK_PCI_TXBD_OWN_OFFSET 15 +#define RTK_PCI_TXBD_BCN_WORK 0x383 + +struct rtw_pci_tx_buffer_desc { + __le16 buf_size; + __le16 psb_len; + __le32 dma; +}; + +struct rtw_pci_tx_data { + dma_addr_t dma; + u8 sn; +}; + +struct rtw_pci_ring { + u8 *head; + dma_addr_t dma; + + u8 desc_size; + + u32 len; + u32 wp; + u32 rp; +}; + +struct rtw_pci_tx_ring { + struct rtw_pci_ring r; + struct sk_buff_head queue; + bool queue_stopped; +}; + +struct rtw_pci_rx_buffer_desc { + __le16 buf_size; + __le16 total_pkt_size; + __le32 dma; +}; + +struct rtw_pci_rx_ring { + struct rtw_pci_ring r; + struct sk_buff *buf[RTK_MAX_RX_DESC_NUM]; +}; + +#define RX_TAG_MAX 8192 + +struct rtw_pci { + struct pci_dev *pdev; + + /* Used for PCI interrupt. */ + spinlock_t hwirq_lock; + /* Used for PCI TX ring/queueing, and enable INT. */ + spinlock_t irq_lock; + u32 irq_mask[4]; + bool irq_enabled; + bool running; + + /* napi structure */ + struct net_device netdev; + struct napi_struct napi; + + u16 rx_tag; + DECLARE_BITMAP(tx_queued, RTK_MAX_TX_QUEUE_NUM); + struct rtw_pci_tx_ring tx_rings[RTK_MAX_TX_QUEUE_NUM]; + struct rtw_pci_rx_ring rx_rings[RTK_MAX_RX_QUEUE_NUM]; + u16 link_ctrl; + atomic_t link_usage; + bool rx_no_aspm; + DECLARE_BITMAP(flags, NUM_OF_RTW_PCI_FLAGS); + + void __iomem *mmap; +}; + +extern const struct dev_pm_ops rtw_pm_ops; + +int rtw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id); +void rtw_pci_remove(struct pci_dev *pdev); +void rtw_pci_shutdown(struct pci_dev *pdev); + +static inline u32 max_num_of_tx_queue(u8 queue) +{ + u32 max_num; + + switch (queue) { + case RTW_TX_QUEUE_BE: + max_num = RTK_BEQ_TX_DESC_NUM; + break; + case RTW_TX_QUEUE_BCN: + max_num = 1; + break; + default: + max_num = RTK_DEFAULT_TX_DESC_NUM; + break; + } + + return max_num; +} + +static inline struct +rtw_pci_tx_data *rtw_pci_get_tx_data(struct sk_buff *skb) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + + BUILD_BUG_ON(sizeof(struct rtw_pci_tx_data) > + sizeof(info->status.status_driver_data)); + + return (struct rtw_pci_tx_data *)info->status.status_driver_data; +} + +static inline +struct rtw_pci_tx_buffer_desc *get_tx_buffer_desc(struct rtw_pci_tx_ring *ring, + u32 size) +{ + u8 *buf_desc; + + buf_desc = ring->r.head + ring->r.wp * size; + return (struct rtw_pci_tx_buffer_desc *)buf_desc; +} + +#endif -- cgit v1.2.3