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/ethernet/stmicro/stmmac/stmmac.h | 403 +++++++++++++++++++++++++++ 1 file changed, 403 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/stmmac.h (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac.h') diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h new file mode 100644 index 000000000..3d15e1e92 --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -0,0 +1,403 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/******************************************************************************* + Copyright (C) 2007-2009 STMicroelectronics Ltd + + + Author: Giuseppe Cavallaro +*******************************************************************************/ + +#ifndef __STMMAC_H__ +#define __STMMAC_H__ + +#define STMMAC_RESOURCE_NAME "stmmaceth" + +#include +#include +#include +#include +#include +#include +#include "common.h" +#include +#include +#include +#include +#include + +struct stmmac_resources { + void __iomem *addr; + u8 mac[ETH_ALEN]; + int wol_irq; + int lpi_irq; + int irq; + int sfty_ce_irq; + int sfty_ue_irq; + int rx_irq[MTL_MAX_RX_QUEUES]; + int tx_irq[MTL_MAX_TX_QUEUES]; +}; + +enum stmmac_txbuf_type { + STMMAC_TXBUF_T_SKB, + STMMAC_TXBUF_T_XDP_TX, + STMMAC_TXBUF_T_XDP_NDO, + STMMAC_TXBUF_T_XSK_TX, +}; + +struct stmmac_tx_info { + dma_addr_t buf; + bool map_as_page; + unsigned len; + bool last_segment; + bool is_jumbo; + enum stmmac_txbuf_type buf_type; +}; + +#define STMMAC_TBS_AVAIL BIT(0) +#define STMMAC_TBS_EN BIT(1) + +/* Frequently used values are kept adjacent for cache effect */ +struct stmmac_tx_queue { + u32 tx_count_frames; + int tbs; + struct hrtimer txtimer; + u32 queue_index; + struct stmmac_priv *priv_data; + struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp; + struct dma_edesc *dma_entx; + struct dma_desc *dma_tx; + union { + struct sk_buff **tx_skbuff; + struct xdp_frame **xdpf; + }; + struct stmmac_tx_info *tx_skbuff_dma; + struct xsk_buff_pool *xsk_pool; + u32 xsk_frames_done; + unsigned int cur_tx; + unsigned int dirty_tx; + dma_addr_t dma_tx_phy; + dma_addr_t tx_tail_addr; + u32 mss; +}; + +struct stmmac_rx_buffer { + union { + struct { + struct page *page; + dma_addr_t addr; + __u32 page_offset; + }; + struct xdp_buff *xdp; + }; + struct page *sec_page; + dma_addr_t sec_addr; +}; + +struct stmmac_rx_queue { + u32 rx_count_frames; + u32 queue_index; + struct xdp_rxq_info xdp_rxq; + struct xsk_buff_pool *xsk_pool; + struct page_pool *page_pool; + struct stmmac_rx_buffer *buf_pool; + struct stmmac_priv *priv_data; + struct dma_extended_desc *dma_erx; + struct dma_desc *dma_rx ____cacheline_aligned_in_smp; + unsigned int cur_rx; + unsigned int dirty_rx; + unsigned int buf_alloc_num; + u32 rx_zeroc_thresh; + dma_addr_t dma_rx_phy; + u32 rx_tail_addr; + unsigned int state_saved; + struct { + struct sk_buff *skb; + unsigned int len; + unsigned int error; + } state; +}; + +struct stmmac_channel { + struct napi_struct rx_napi ____cacheline_aligned_in_smp; + struct napi_struct tx_napi ____cacheline_aligned_in_smp; + struct napi_struct rxtx_napi ____cacheline_aligned_in_smp; + struct stmmac_priv *priv_data; + spinlock_t lock; + u32 index; +}; + +struct stmmac_tc_entry { + bool in_use; + bool in_hw; + bool is_last; + bool is_frag; + void *frag_ptr; + unsigned int table_pos; + u32 handle; + u32 prio; + struct { + u32 match_data; + u32 match_en; + u8 af:1; + u8 rf:1; + u8 im:1; + u8 nc:1; + u8 res1:4; + u8 frame_offset; + u8 ok_index; + u8 dma_ch_no; + u32 res2; + } __packed val; +}; + +#define STMMAC_PPS_MAX 4 +struct stmmac_pps_cfg { + bool available; + struct timespec64 start; + struct timespec64 period; +}; + +struct stmmac_rss { + int enable; + u8 key[STMMAC_RSS_HASH_KEY_SIZE]; + u32 table[STMMAC_RSS_MAX_TABLE_SIZE]; +}; + +#define STMMAC_FLOW_ACTION_DROP BIT(0) +struct stmmac_flow_entry { + unsigned long cookie; + unsigned long action; + u8 ip_proto; + int in_use; + int idx; + int is_l4; +}; + +/* Rx Frame Steering */ +enum stmmac_rfs_type { + STMMAC_RFS_T_VLAN, + STMMAC_RFS_T_LLDP, + STMMAC_RFS_T_1588, + STMMAC_RFS_T_MAX, +}; + +struct stmmac_rfs_entry { + unsigned long cookie; + u16 etype; + int in_use; + int type; + int tc; +}; + +struct stmmac_dma_conf { + unsigned int dma_buf_sz; + + /* RX Queue */ + struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES]; + unsigned int dma_rx_size; + + /* TX Queue */ + struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES]; + unsigned int dma_tx_size; +}; + +struct stmmac_priv { + /* Frequently used values are kept adjacent for cache effect */ + u32 tx_coal_frames[MTL_MAX_TX_QUEUES]; + u32 tx_coal_timer[MTL_MAX_TX_QUEUES]; + u32 rx_coal_frames[MTL_MAX_TX_QUEUES]; + + int hwts_tx_en; + bool tx_path_in_lpi_mode; + bool tso; + int sph; + int sph_cap; + u32 sarc_type; + + unsigned int rx_copybreak; + u32 rx_riwt[MTL_MAX_TX_QUEUES]; + int hwts_rx_en; + + void __iomem *ioaddr; + struct net_device *dev; + struct device *device; + struct mac_device_info *hw; + int (*hwif_quirks)(struct stmmac_priv *priv); + struct mutex lock; + + struct stmmac_dma_conf dma_conf; + + /* Generic channel for NAPI */ + struct stmmac_channel channel[STMMAC_CH_MAX]; + + int speed; + unsigned int flow_ctrl; + unsigned int pause; + struct mii_bus *mii; + + struct phylink_config phylink_config; + struct phylink *phylink; + + struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp; + struct stmmac_safety_stats sstats; + struct plat_stmmacenet_data *plat; + struct dma_features dma_cap; + struct stmmac_counters mmc; + int hw_cap_support; + int synopsys_id; + u32 msg_enable; + int wolopts; + int wol_irq; + int clk_csr; + struct timer_list eee_ctrl_timer; + int lpi_irq; + int eee_enabled; + int eee_active; + int tx_lpi_timer; + int tx_lpi_enabled; + int eee_tw_timer; + bool eee_sw_timer_en; + unsigned int mode; + unsigned int chain_mode; + int extend_desc; + struct hwtstamp_config tstamp_config; + struct ptp_clock *ptp_clock; + struct ptp_clock_info ptp_clock_ops; + unsigned int default_addend; + u32 sub_second_inc; + u32 systime_flags; + u32 adv_ts; + int use_riwt; + int irq_wake; + rwlock_t ptp_lock; + /* Protects auxiliary snapshot registers from concurrent access. */ + struct mutex aux_ts_lock; + wait_queue_head_t tstamp_busy_wait; + + void __iomem *mmcaddr; + void __iomem *ptpaddr; + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + int sfty_ce_irq; + int sfty_ue_irq; + int rx_irq[MTL_MAX_RX_QUEUES]; + int tx_irq[MTL_MAX_TX_QUEUES]; + /*irq name */ + char int_name_mac[IFNAMSIZ + 9]; + char int_name_wol[IFNAMSIZ + 9]; + char int_name_lpi[IFNAMSIZ + 9]; + char int_name_sfty_ce[IFNAMSIZ + 10]; + char int_name_sfty_ue[IFNAMSIZ + 10]; + char int_name_rx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 14]; + char int_name_tx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 18]; + +#ifdef CONFIG_DEBUG_FS + struct dentry *dbgfs_dir; +#endif + + unsigned long state; + struct workqueue_struct *wq; + struct work_struct service_task; + + /* Workqueue for handling FPE hand-shaking */ + unsigned long fpe_task_state; + struct workqueue_struct *fpe_wq; + struct work_struct fpe_task; + char wq_name[IFNAMSIZ + 4]; + + /* TC Handling */ + unsigned int tc_entries_max; + unsigned int tc_off_max; + struct stmmac_tc_entry *tc_entries; + unsigned int flow_entries_max; + struct stmmac_flow_entry *flow_entries; + unsigned int rfs_entries_max[STMMAC_RFS_T_MAX]; + unsigned int rfs_entries_cnt[STMMAC_RFS_T_MAX]; + unsigned int rfs_entries_total; + struct stmmac_rfs_entry *rfs_entries; + + /* Pulse Per Second output */ + struct stmmac_pps_cfg pps[STMMAC_PPS_MAX]; + + /* Receive Side Scaling */ + struct stmmac_rss rss; + + /* XDP BPF Program */ + unsigned long *af_xdp_zc_qps; + struct bpf_prog *xdp_prog; +}; + +enum stmmac_state { + STMMAC_DOWN, + STMMAC_RESET_REQUESTED, + STMMAC_RESETING, + STMMAC_SERVICE_SCHED, +}; + +int stmmac_mdio_unregister(struct net_device *ndev); +int stmmac_mdio_register(struct net_device *ndev); +int stmmac_mdio_reset(struct mii_bus *mii); +int stmmac_xpcs_setup(struct mii_bus *mii); +void stmmac_set_ethtool_ops(struct net_device *netdev); + +int stmmac_init_tstamp_counter(struct stmmac_priv *priv, u32 systime_flags); +void stmmac_ptp_register(struct stmmac_priv *priv); +void stmmac_ptp_unregister(struct stmmac_priv *priv); +int stmmac_xdp_open(struct net_device *dev); +void stmmac_xdp_release(struct net_device *dev); +int stmmac_resume(struct device *dev); +int stmmac_suspend(struct device *dev); +void stmmac_dvr_remove(struct device *dev); +int stmmac_dvr_probe(struct device *device, + struct plat_stmmacenet_data *plat_dat, + struct stmmac_resources *res); +void stmmac_disable_eee_mode(struct stmmac_priv *priv); +bool stmmac_eee_init(struct stmmac_priv *priv); +int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt); +int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size); +int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled); +void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable); + +static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv) +{ + return !!priv->xdp_prog; +} + +static inline unsigned int stmmac_rx_offset(struct stmmac_priv *priv) +{ + if (stmmac_xdp_is_enabled(priv)) + return XDP_PACKET_HEADROOM; + + return 0; +} + +void stmmac_disable_rx_queue(struct stmmac_priv *priv, u32 queue); +void stmmac_enable_rx_queue(struct stmmac_priv *priv, u32 queue); +void stmmac_disable_tx_queue(struct stmmac_priv *priv, u32 queue); +void stmmac_enable_tx_queue(struct stmmac_priv *priv, u32 queue); +int stmmac_xsk_wakeup(struct net_device *dev, u32 queue, u32 flags); +struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time, + ktime_t current_time, + u64 cycle_time); + +#if IS_ENABLED(CONFIG_STMMAC_SELFTESTS) +void stmmac_selftest_run(struct net_device *dev, + struct ethtool_test *etest, u64 *buf); +void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data); +int stmmac_selftest_get_count(struct stmmac_priv *priv); +#else +static inline void stmmac_selftest_run(struct net_device *dev, + struct ethtool_test *etest, u64 *buf) +{ + /* Not enabled */ +} +static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv, + u8 *data) +{ + /* Not enabled */ +} +static inline int stmmac_selftest_get_count(struct stmmac_priv *priv) +{ + return -EOPNOTSUPP; +} +#endif /* CONFIG_STMMAC_SELFTESTS */ + +#endif /* __STMMAC_H__ */ -- cgit v1.2.3