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/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 26 struct stmmac_resources { 27 void __iomem *addr; 28 const char *mac; 29 int wol_irq; 30 int lpi_irq; 31 int irq; 32 }; 33 34 struct stmmac_tx_info { 35 dma_addr_t buf; 36 bool map_as_page; 37 unsigned len; 38 bool last_segment; 39 bool is_jumbo; 40 }; 41 42 /* Frequently used values are kept adjacent for cache effect */ 43 struct stmmac_tx_queue { 44 u32 tx_count_frames; 45 struct timer_list txtimer; 46 u32 queue_index; 47 struct stmmac_priv *priv_data; 48 struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp; 49 struct dma_desc *dma_tx; 50 struct sk_buff **tx_skbuff; 51 struct stmmac_tx_info *tx_skbuff_dma; 52 unsigned int cur_tx; 53 unsigned int dirty_tx; 54 dma_addr_t dma_tx_phy; 55 u32 tx_tail_addr; 56 u32 mss; 57 }; 58 59 struct stmmac_rx_buffer { 60 struct page *page; 61 struct page *sec_page; 62 dma_addr_t addr; 63 dma_addr_t sec_addr; 64 }; 65 66 struct stmmac_rx_queue { 67 u32 rx_count_frames; 68 u32 queue_index; 69 struct page_pool *page_pool; 70 struct stmmac_rx_buffer *buf_pool; 71 struct stmmac_priv *priv_data; 72 struct dma_extended_desc *dma_erx; 73 struct dma_desc *dma_rx ____cacheline_aligned_in_smp; 74 unsigned int cur_rx; 75 unsigned int dirty_rx; 76 u32 rx_zeroc_thresh; 77 dma_addr_t dma_rx_phy; 78 u32 rx_tail_addr; 79 unsigned int state_saved; 80 struct { 81 struct sk_buff *skb; 82 unsigned int len; 83 unsigned int error; 84 } state; 85 }; 86 87 struct stmmac_channel { 88 struct napi_struct rx_napi ____cacheline_aligned_in_smp; 89 struct napi_struct tx_napi ____cacheline_aligned_in_smp; 90 struct stmmac_priv *priv_data; 91 u32 index; 92 }; 93 94 struct stmmac_tc_entry { 95 bool in_use; 96 bool in_hw; 97 bool is_last; 98 bool is_frag; 99 void *frag_ptr; 100 unsigned int table_pos; 101 u32 handle; 102 u32 prio; 103 struct { 104 u32 match_data; 105 u32 match_en; 106 u8 af:1; 107 u8 rf:1; 108 u8 im:1; 109 u8 nc:1; 110 u8 res1:4; 111 u8 frame_offset; 112 u8 ok_index; 113 u8 dma_ch_no; 114 u32 res2; 115 } __packed val; 116 }; 117 118 #define STMMAC_PPS_MAX 4 119 struct stmmac_pps_cfg { 120 bool available; 121 struct timespec64 start; 122 struct timespec64 period; 123 }; 124 125 struct stmmac_rss { 126 int enable; 127 u8 key[STMMAC_RSS_HASH_KEY_SIZE]; 128 u32 table[STMMAC_RSS_MAX_TABLE_SIZE]; 129 }; 130 131 struct stmmac_priv { 132 /* Frequently used values are kept adjacent for cache effect */ 133 u32 tx_coal_frames; 134 u32 tx_coal_timer; 135 u32 rx_coal_frames; 136 137 int tx_coalesce; 138 int hwts_tx_en; 139 bool tx_path_in_lpi_mode; 140 bool tso; 141 int sph; 142 u32 sarc_type; 143 144 unsigned int dma_buf_sz; 145 unsigned int rx_copybreak; 146 u32 rx_riwt; 147 int hwts_rx_en; 148 149 void __iomem *ioaddr; 150 struct net_device *dev; 151 struct device *device; 152 struct mac_device_info *hw; 153 int (*hwif_quirks)(struct stmmac_priv *priv); 154 struct mutex lock; 155 156 /* RX Queue */ 157 struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES]; 158 159 /* TX Queue */ 160 struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES]; 161 162 /* Generic channel for NAPI */ 163 struct stmmac_channel channel[STMMAC_CH_MAX]; 164 165 int speed; 166 unsigned int flow_ctrl; 167 unsigned int pause; 168 struct mii_bus *mii; 169 int mii_irq[PHY_MAX_ADDR]; 170 171 struct phylink_config phylink_config; 172 struct phylink *phylink; 173 174 struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp; 175 struct stmmac_safety_stats sstats; 176 struct plat_stmmacenet_data *plat; 177 struct dma_features dma_cap; 178 struct stmmac_counters mmc; 179 int hw_cap_support; 180 int synopsys_id; 181 u32 msg_enable; 182 int wolopts; 183 int wol_irq; 184 int clk_csr; 185 struct timer_list eee_ctrl_timer; 186 int lpi_irq; 187 int eee_enabled; 188 int eee_active; 189 int tx_lpi_timer; 190 unsigned int mode; 191 unsigned int chain_mode; 192 int extend_desc; 193 struct hwtstamp_config tstamp_config; 194 struct ptp_clock *ptp_clock; 195 struct ptp_clock_info ptp_clock_ops; 196 unsigned int default_addend; 197 u32 sub_second_inc; 198 u32 systime_flags; 199 u32 adv_ts; 200 int use_riwt; 201 int irq_wake; 202 spinlock_t ptp_lock; 203 void __iomem *mmcaddr; 204 void __iomem *ptpaddr; 205 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 206 207 #ifdef CONFIG_DEBUG_FS 208 struct dentry *dbgfs_dir; 209 #endif 210 211 unsigned long state; 212 struct workqueue_struct *wq; 213 struct work_struct service_task; 214 215 /* TC Handling */ 216 unsigned int tc_entries_max; 217 unsigned int tc_off_max; 218 struct stmmac_tc_entry *tc_entries; 219 220 /* Pulse Per Second output */ 221 struct stmmac_pps_cfg pps[STMMAC_PPS_MAX]; 222 223 /* Receive Side Scaling */ 224 struct stmmac_rss rss; 225 }; 226 227 enum stmmac_state { 228 STMMAC_DOWN, 229 STMMAC_RESET_REQUESTED, 230 STMMAC_RESETING, 231 STMMAC_SERVICE_SCHED, 232 }; 233 234 int stmmac_mdio_unregister(struct net_device *ndev); 235 int stmmac_mdio_register(struct net_device *ndev); 236 int stmmac_mdio_reset(struct mii_bus *mii); 237 void stmmac_set_ethtool_ops(struct net_device *netdev); 238 239 void stmmac_ptp_register(struct stmmac_priv *priv); 240 void stmmac_ptp_unregister(struct stmmac_priv *priv); 241 int stmmac_resume(struct device *dev); 242 int stmmac_suspend(struct device *dev); 243 int stmmac_dvr_remove(struct device *dev); 244 int stmmac_dvr_probe(struct device *device, 245 struct plat_stmmacenet_data *plat_dat, 246 struct stmmac_resources *res); 247 void stmmac_disable_eee_mode(struct stmmac_priv *priv); 248 bool stmmac_eee_init(struct stmmac_priv *priv); 249 250 #if IS_ENABLED(CONFIG_STMMAC_SELFTESTS) 251 void stmmac_selftest_run(struct net_device *dev, 252 struct ethtool_test *etest, u64 *buf); 253 void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data); 254 int stmmac_selftest_get_count(struct stmmac_priv *priv); 255 #else 256 static inline void stmmac_selftest_run(struct net_device *dev, 257 struct ethtool_test *etest, u64 *buf) 258 { 259 /* Not enabled */ 260 } 261 static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv, 262 u8 *data) 263 { 264 /* Not enabled */ 265 } 266 static inline int stmmac_selftest_get_count(struct stmmac_priv *priv) 267 { 268 return -EOPNOTSUPP; 269 } 270 #endif /* CONFIG_STMMAC_SELFTESTS */ 271 272 #endif /* __STMMAC_H__ */ 273