1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /******************************************************************************* 3 Copyright (C) 2007-2009 STMicroelectronics Ltd 4 5 6 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com> 7 *******************************************************************************/ 8 9 #ifndef __STMMAC_H__ 10 #define __STMMAC_H__ 11 12 #define STMMAC_RESOURCE_NAME "stmmaceth" 13 14 #include <linux/clk.h> 15 #include <linux/hrtimer.h> 16 #include <linux/if_vlan.h> 17 #include <linux/stmmac.h> 18 #include <linux/phylink.h> 19 #include <linux/pci.h> 20 #include "common.h" 21 #include <linux/ptp_clock_kernel.h> 22 #include <linux/net_tstamp.h> 23 #include <linux/reset.h> 24 #include <net/page_pool.h> 25 #include <uapi/linux/bpf.h> 26 27 struct stmmac_resources { 28 void __iomem *addr; 29 u8 mac[ETH_ALEN]; 30 int wol_irq; 31 int lpi_irq; 32 int irq; 33 int sfty_ce_irq; 34 int sfty_ue_irq; 35 int rx_irq[MTL_MAX_RX_QUEUES]; 36 int tx_irq[MTL_MAX_TX_QUEUES]; 37 }; 38 39 enum stmmac_txbuf_type { 40 STMMAC_TXBUF_T_SKB, 41 STMMAC_TXBUF_T_XDP_TX, 42 STMMAC_TXBUF_T_XDP_NDO, 43 STMMAC_TXBUF_T_XSK_TX, 44 }; 45 46 struct stmmac_tx_info { 47 dma_addr_t buf; 48 bool map_as_page; 49 unsigned len; 50 bool last_segment; 51 bool is_jumbo; 52 enum stmmac_txbuf_type buf_type; 53 }; 54 55 #define STMMAC_TBS_AVAIL BIT(0) 56 #define STMMAC_TBS_EN BIT(1) 57 58 /* Frequently used values are kept adjacent for cache effect */ 59 struct stmmac_tx_queue { 60 u32 tx_count_frames; 61 int tbs; 62 struct hrtimer txtimer; 63 u32 queue_index; 64 struct stmmac_priv *priv_data; 65 struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp; 66 struct dma_edesc *dma_entx; 67 struct dma_desc *dma_tx; 68 union { 69 struct sk_buff **tx_skbuff; 70 struct xdp_frame **xdpf; 71 }; 72 struct stmmac_tx_info *tx_skbuff_dma; 73 struct xsk_buff_pool *xsk_pool; 74 u32 xsk_frames_done; 75 unsigned int cur_tx; 76 unsigned int dirty_tx; 77 dma_addr_t dma_tx_phy; 78 dma_addr_t tx_tail_addr; 79 u32 mss; 80 }; 81 82 struct stmmac_rx_buffer { 83 union { 84 struct { 85 struct page *page; 86 dma_addr_t addr; 87 __u32 page_offset; 88 }; 89 struct xdp_buff *xdp; 90 }; 91 struct page *sec_page; 92 dma_addr_t sec_addr; 93 }; 94 95 struct stmmac_rx_queue { 96 u32 rx_count_frames; 97 u32 queue_index; 98 struct xdp_rxq_info xdp_rxq; 99 struct xsk_buff_pool *xsk_pool; 100 struct page_pool *page_pool; 101 struct stmmac_rx_buffer *buf_pool; 102 struct stmmac_priv *priv_data; 103 struct dma_extended_desc *dma_erx; 104 struct dma_desc *dma_rx ____cacheline_aligned_in_smp; 105 unsigned int cur_rx; 106 unsigned int dirty_rx; 107 unsigned int buf_alloc_num; 108 u32 rx_zeroc_thresh; 109 dma_addr_t dma_rx_phy; 110 u32 rx_tail_addr; 111 unsigned int state_saved; 112 struct { 113 struct sk_buff *skb; 114 unsigned int len; 115 unsigned int error; 116 } state; 117 }; 118 119 struct stmmac_channel { 120 struct napi_struct rx_napi ____cacheline_aligned_in_smp; 121 struct napi_struct tx_napi ____cacheline_aligned_in_smp; 122 struct napi_struct rxtx_napi ____cacheline_aligned_in_smp; 123 struct stmmac_priv *priv_data; 124 spinlock_t lock; 125 u32 index; 126 }; 127 128 struct stmmac_tc_entry { 129 bool in_use; 130 bool in_hw; 131 bool is_last; 132 bool is_frag; 133 void *frag_ptr; 134 unsigned int table_pos; 135 u32 handle; 136 u32 prio; 137 struct { 138 u32 match_data; 139 u32 match_en; 140 u8 af:1; 141 u8 rf:1; 142 u8 im:1; 143 u8 nc:1; 144 u8 res1:4; 145 u8 frame_offset; 146 u8 ok_index; 147 u8 dma_ch_no; 148 u32 res2; 149 } __packed val; 150 }; 151 152 #define STMMAC_PPS_MAX 4 153 struct stmmac_pps_cfg { 154 bool available; 155 struct timespec64 start; 156 struct timespec64 period; 157 }; 158 159 struct stmmac_rss { 160 int enable; 161 u8 key[STMMAC_RSS_HASH_KEY_SIZE]; 162 u32 table[STMMAC_RSS_MAX_TABLE_SIZE]; 163 }; 164 165 #define STMMAC_FLOW_ACTION_DROP BIT(0) 166 struct stmmac_flow_entry { 167 unsigned long cookie; 168 unsigned long action; 169 u8 ip_proto; 170 int in_use; 171 int idx; 172 int is_l4; 173 }; 174 175 /* Rx Frame Steering */ 176 enum stmmac_rfs_type { 177 STMMAC_RFS_T_VLAN, 178 STMMAC_RFS_T_LLDP, 179 STMMAC_RFS_T_1588, 180 STMMAC_RFS_T_MAX, 181 }; 182 183 struct stmmac_rfs_entry { 184 unsigned long cookie; 185 u16 etype; 186 int in_use; 187 int type; 188 int tc; 189 }; 190 191 struct stmmac_priv { 192 /* Frequently used values are kept adjacent for cache effect */ 193 u32 tx_coal_frames[MTL_MAX_TX_QUEUES]; 194 u32 tx_coal_timer[MTL_MAX_TX_QUEUES]; 195 u32 rx_coal_frames[MTL_MAX_TX_QUEUES]; 196 197 int tx_coalesce; 198 int hwts_tx_en; 199 bool tx_path_in_lpi_mode; 200 bool tso; 201 int sph; 202 int sph_cap; 203 u32 sarc_type; 204 205 unsigned int dma_buf_sz; 206 unsigned int rx_copybreak; 207 u32 rx_riwt[MTL_MAX_TX_QUEUES]; 208 int hwts_rx_en; 209 210 void __iomem *ioaddr; 211 struct net_device *dev; 212 struct device *device; 213 struct mac_device_info *hw; 214 int (*hwif_quirks)(struct stmmac_priv *priv); 215 struct mutex lock; 216 217 /* RX Queue */ 218 struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES]; 219 unsigned int dma_rx_size; 220 221 /* TX Queue */ 222 struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES]; 223 unsigned int dma_tx_size; 224 225 /* Generic channel for NAPI */ 226 struct stmmac_channel channel[STMMAC_CH_MAX]; 227 228 int speed; 229 unsigned int flow_ctrl; 230 unsigned int pause; 231 struct mii_bus *mii; 232 int mii_irq[PHY_MAX_ADDR]; 233 234 struct phylink_config phylink_config; 235 struct phylink *phylink; 236 237 struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp; 238 struct stmmac_safety_stats sstats; 239 struct plat_stmmacenet_data *plat; 240 struct dma_features dma_cap; 241 struct stmmac_counters mmc; 242 int hw_cap_support; 243 int synopsys_id; 244 u32 msg_enable; 245 int wolopts; 246 int wol_irq; 247 int clk_csr; 248 struct timer_list eee_ctrl_timer; 249 int lpi_irq; 250 int eee_enabled; 251 int eee_active; 252 int tx_lpi_timer; 253 int tx_lpi_enabled; 254 int eee_tw_timer; 255 bool eee_sw_timer_en; 256 unsigned int mode; 257 unsigned int chain_mode; 258 int extend_desc; 259 struct hwtstamp_config tstamp_config; 260 struct ptp_clock *ptp_clock; 261 struct ptp_clock_info ptp_clock_ops; 262 unsigned int default_addend; 263 u32 sub_second_inc; 264 u32 systime_flags; 265 u32 adv_ts; 266 int use_riwt; 267 int irq_wake; 268 spinlock_t ptp_lock; 269 /* Protects auxiliary snapshot registers from concurrent access. */ 270 struct mutex aux_ts_lock; 271 272 void __iomem *mmcaddr; 273 void __iomem *ptpaddr; 274 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 275 int sfty_ce_irq; 276 int sfty_ue_irq; 277 int rx_irq[MTL_MAX_RX_QUEUES]; 278 int tx_irq[MTL_MAX_TX_QUEUES]; 279 /*irq name */ 280 char int_name_mac[IFNAMSIZ + 9]; 281 char int_name_wol[IFNAMSIZ + 9]; 282 char int_name_lpi[IFNAMSIZ + 9]; 283 char int_name_sfty_ce[IFNAMSIZ + 10]; 284 char int_name_sfty_ue[IFNAMSIZ + 10]; 285 char int_name_rx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 14]; 286 char int_name_tx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 18]; 287 288 #ifdef CONFIG_DEBUG_FS 289 struct dentry *dbgfs_dir; 290 #endif 291 292 unsigned long state; 293 struct workqueue_struct *wq; 294 struct work_struct service_task; 295 296 /* Workqueue for handling FPE hand-shaking */ 297 unsigned long fpe_task_state; 298 struct workqueue_struct *fpe_wq; 299 struct work_struct fpe_task; 300 char wq_name[IFNAMSIZ + 4]; 301 302 /* TC Handling */ 303 unsigned int tc_entries_max; 304 unsigned int tc_off_max; 305 struct stmmac_tc_entry *tc_entries; 306 unsigned int flow_entries_max; 307 struct stmmac_flow_entry *flow_entries; 308 unsigned int rfs_entries_max[STMMAC_RFS_T_MAX]; 309 unsigned int rfs_entries_cnt[STMMAC_RFS_T_MAX]; 310 unsigned int rfs_entries_total; 311 struct stmmac_rfs_entry *rfs_entries; 312 313 /* Pulse Per Second output */ 314 struct stmmac_pps_cfg pps[STMMAC_PPS_MAX]; 315 316 /* Receive Side Scaling */ 317 struct stmmac_rss rss; 318 319 /* XDP BPF Program */ 320 unsigned long *af_xdp_zc_qps; 321 struct bpf_prog *xdp_prog; 322 }; 323 324 enum stmmac_state { 325 STMMAC_DOWN, 326 STMMAC_RESET_REQUESTED, 327 STMMAC_RESETING, 328 STMMAC_SERVICE_SCHED, 329 }; 330 331 int stmmac_mdio_unregister(struct net_device *ndev); 332 int stmmac_mdio_register(struct net_device *ndev); 333 int stmmac_mdio_reset(struct mii_bus *mii); 334 int stmmac_xpcs_setup(struct mii_bus *mii); 335 void stmmac_set_ethtool_ops(struct net_device *netdev); 336 337 int stmmac_init_tstamp_counter(struct stmmac_priv *priv, u32 systime_flags); 338 void stmmac_ptp_register(struct stmmac_priv *priv); 339 void stmmac_ptp_unregister(struct stmmac_priv *priv); 340 int stmmac_xdp_open(struct net_device *dev); 341 void stmmac_xdp_release(struct net_device *dev); 342 int stmmac_resume(struct device *dev); 343 int stmmac_suspend(struct device *dev); 344 int stmmac_dvr_remove(struct device *dev); 345 int stmmac_dvr_probe(struct device *device, 346 struct plat_stmmacenet_data *plat_dat, 347 struct stmmac_resources *res); 348 void stmmac_disable_eee_mode(struct stmmac_priv *priv); 349 bool stmmac_eee_init(struct stmmac_priv *priv); 350 int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt); 351 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size); 352 int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled); 353 void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable); 354 355 static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv) 356 { 357 return !!priv->xdp_prog; 358 } 359 360 static inline unsigned int stmmac_rx_offset(struct stmmac_priv *priv) 361 { 362 if (stmmac_xdp_is_enabled(priv)) 363 return XDP_PACKET_HEADROOM; 364 365 return 0; 366 } 367 368 void stmmac_disable_rx_queue(struct stmmac_priv *priv, u32 queue); 369 void stmmac_enable_rx_queue(struct stmmac_priv *priv, u32 queue); 370 void stmmac_disable_tx_queue(struct stmmac_priv *priv, u32 queue); 371 void stmmac_enable_tx_queue(struct stmmac_priv *priv, u32 queue); 372 int stmmac_xsk_wakeup(struct net_device *dev, u32 queue, u32 flags); 373 struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time, 374 ktime_t current_time, 375 u64 cycle_time); 376 377 #if IS_ENABLED(CONFIG_STMMAC_SELFTESTS) 378 void stmmac_selftest_run(struct net_device *dev, 379 struct ethtool_test *etest, u64 *buf); 380 void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data); 381 int stmmac_selftest_get_count(struct stmmac_priv *priv); 382 #else 383 static inline void stmmac_selftest_run(struct net_device *dev, 384 struct ethtool_test *etest, u64 *buf) 385 { 386 /* Not enabled */ 387 } 388 static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv, 389 u8 *data) 390 { 391 /* Not enabled */ 392 } 393 static inline int stmmac_selftest_get_count(struct stmmac_priv *priv) 394 { 395 return -EOPNOTSUPP; 396 } 397 #endif /* CONFIG_STMMAC_SELFTESTS */ 398 399 #endif /* __STMMAC_H__ */ 400