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 #define DRV_MODULE_VERSION "Jan_2016" 14 15 #include <linux/clk.h> 16 #include <linux/hrtimer.h> 17 #include <linux/if_vlan.h> 18 #include <linux/stmmac.h> 19 #include <linux/phylink.h> 20 #include <linux/pci.h> 21 #include "common.h" 22 #include <linux/ptp_clock_kernel.h> 23 #include <linux/net_tstamp.h> 24 #include <linux/reset.h> 25 #include <net/page_pool.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 struct stmmac_priv { 176 /* Frequently used values are kept adjacent for cache effect */ 177 u32 tx_coal_frames[MTL_MAX_TX_QUEUES]; 178 u32 tx_coal_timer[MTL_MAX_TX_QUEUES]; 179 u32 rx_coal_frames[MTL_MAX_TX_QUEUES]; 180 181 int tx_coalesce; 182 int hwts_tx_en; 183 bool tx_path_in_lpi_mode; 184 bool tso; 185 int sph; 186 int sph_cap; 187 u32 sarc_type; 188 189 unsigned int dma_buf_sz; 190 unsigned int rx_copybreak; 191 u32 rx_riwt[MTL_MAX_TX_QUEUES]; 192 int hwts_rx_en; 193 194 void __iomem *ioaddr; 195 struct net_device *dev; 196 struct device *device; 197 struct mac_device_info *hw; 198 int (*hwif_quirks)(struct stmmac_priv *priv); 199 struct mutex lock; 200 201 /* RX Queue */ 202 struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES]; 203 unsigned int dma_rx_size; 204 205 /* TX Queue */ 206 struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES]; 207 unsigned int dma_tx_size; 208 209 /* Generic channel for NAPI */ 210 struct stmmac_channel channel[STMMAC_CH_MAX]; 211 212 int speed; 213 unsigned int flow_ctrl; 214 unsigned int pause; 215 struct mii_bus *mii; 216 int mii_irq[PHY_MAX_ADDR]; 217 218 struct phylink_config phylink_config; 219 struct phylink *phylink; 220 221 struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp; 222 struct stmmac_safety_stats sstats; 223 struct plat_stmmacenet_data *plat; 224 struct dma_features dma_cap; 225 struct stmmac_counters mmc; 226 int hw_cap_support; 227 int synopsys_id; 228 u32 msg_enable; 229 int wolopts; 230 int wol_irq; 231 int clk_csr; 232 struct timer_list eee_ctrl_timer; 233 int lpi_irq; 234 int eee_enabled; 235 int eee_active; 236 int tx_lpi_timer; 237 int tx_lpi_enabled; 238 int eee_tw_timer; 239 bool eee_sw_timer_en; 240 unsigned int mode; 241 unsigned int chain_mode; 242 int extend_desc; 243 struct hwtstamp_config tstamp_config; 244 struct ptp_clock *ptp_clock; 245 struct ptp_clock_info ptp_clock_ops; 246 unsigned int default_addend; 247 u32 sub_second_inc; 248 u32 systime_flags; 249 u32 adv_ts; 250 int use_riwt; 251 int irq_wake; 252 spinlock_t ptp_lock; 253 /* Protects auxiliary snapshot registers from concurrent access. */ 254 struct mutex aux_ts_lock; 255 256 void __iomem *mmcaddr; 257 void __iomem *ptpaddr; 258 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 259 int sfty_ce_irq; 260 int sfty_ue_irq; 261 int rx_irq[MTL_MAX_RX_QUEUES]; 262 int tx_irq[MTL_MAX_TX_QUEUES]; 263 /*irq name */ 264 char int_name_mac[IFNAMSIZ + 9]; 265 char int_name_wol[IFNAMSIZ + 9]; 266 char int_name_lpi[IFNAMSIZ + 9]; 267 char int_name_sfty_ce[IFNAMSIZ + 10]; 268 char int_name_sfty_ue[IFNAMSIZ + 10]; 269 char int_name_rx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 14]; 270 char int_name_tx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 18]; 271 272 #ifdef CONFIG_DEBUG_FS 273 struct dentry *dbgfs_dir; 274 #endif 275 276 unsigned long state; 277 struct workqueue_struct *wq; 278 struct work_struct service_task; 279 280 /* Workqueue for handling FPE hand-shaking */ 281 unsigned long fpe_task_state; 282 struct workqueue_struct *fpe_wq; 283 struct work_struct fpe_task; 284 char wq_name[IFNAMSIZ + 4]; 285 286 /* TC Handling */ 287 unsigned int tc_entries_max; 288 unsigned int tc_off_max; 289 struct stmmac_tc_entry *tc_entries; 290 unsigned int flow_entries_max; 291 struct stmmac_flow_entry *flow_entries; 292 293 /* Pulse Per Second output */ 294 struct stmmac_pps_cfg pps[STMMAC_PPS_MAX]; 295 296 /* Receive Side Scaling */ 297 struct stmmac_rss rss; 298 299 /* XDP BPF Program */ 300 unsigned long *af_xdp_zc_qps; 301 struct bpf_prog *xdp_prog; 302 }; 303 304 enum stmmac_state { 305 STMMAC_DOWN, 306 STMMAC_RESET_REQUESTED, 307 STMMAC_RESETING, 308 STMMAC_SERVICE_SCHED, 309 }; 310 311 int stmmac_mdio_unregister(struct net_device *ndev); 312 int stmmac_mdio_register(struct net_device *ndev); 313 int stmmac_mdio_reset(struct mii_bus *mii); 314 int stmmac_xpcs_setup(struct mii_bus *mii); 315 void stmmac_set_ethtool_ops(struct net_device *netdev); 316 317 int stmmac_init_tstamp_counter(struct stmmac_priv *priv, u32 systime_flags); 318 void stmmac_ptp_register(struct stmmac_priv *priv); 319 void stmmac_ptp_unregister(struct stmmac_priv *priv); 320 int stmmac_open(struct net_device *dev); 321 int stmmac_release(struct net_device *dev); 322 int stmmac_resume(struct device *dev); 323 int stmmac_suspend(struct device *dev); 324 int stmmac_dvr_remove(struct device *dev); 325 int stmmac_dvr_probe(struct device *device, 326 struct plat_stmmacenet_data *plat_dat, 327 struct stmmac_resources *res); 328 void stmmac_disable_eee_mode(struct stmmac_priv *priv); 329 bool stmmac_eee_init(struct stmmac_priv *priv); 330 int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt); 331 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size); 332 int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled); 333 void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable); 334 335 static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv) 336 { 337 return !!priv->xdp_prog; 338 } 339 340 static inline unsigned int stmmac_rx_offset(struct stmmac_priv *priv) 341 { 342 if (stmmac_xdp_is_enabled(priv)) 343 return XDP_PACKET_HEADROOM; 344 345 return 0; 346 } 347 348 void stmmac_disable_rx_queue(struct stmmac_priv *priv, u32 queue); 349 void stmmac_enable_rx_queue(struct stmmac_priv *priv, u32 queue); 350 void stmmac_disable_tx_queue(struct stmmac_priv *priv, u32 queue); 351 void stmmac_enable_tx_queue(struct stmmac_priv *priv, u32 queue); 352 int stmmac_xsk_wakeup(struct net_device *dev, u32 queue, u32 flags); 353 struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time, 354 ktime_t current_time, 355 u64 cycle_time); 356 357 #if IS_ENABLED(CONFIG_STMMAC_SELFTESTS) 358 void stmmac_selftest_run(struct net_device *dev, 359 struct ethtool_test *etest, u64 *buf); 360 void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data); 361 int stmmac_selftest_get_count(struct stmmac_priv *priv); 362 #else 363 static inline void stmmac_selftest_run(struct net_device *dev, 364 struct ethtool_test *etest, u64 *buf) 365 { 366 /* Not enabled */ 367 } 368 static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv, 369 u8 *data) 370 { 371 /* Not enabled */ 372 } 373 static inline int stmmac_selftest_get_count(struct stmmac_priv *priv) 374 { 375 return -EOPNOTSUPP; 376 } 377 #endif /* CONFIG_STMMAC_SELFTESTS */ 378 379 #endif /* __STMMAC_H__ */ 380