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/types.h>
25 #include <net/xdp.h>
26 #include <uapi/linux/bpf.h>
27
28 struct stmmac_pcs;
29
30 struct stmmac_resources {
31 void __iomem *addr;
32 u8 mac[ETH_ALEN];
33 int wol_irq;
34 int irq;
35 int sfty_irq;
36 int sfty_ce_irq;
37 int sfty_ue_irq;
38 int rx_irq[MTL_MAX_RX_QUEUES];
39 int tx_irq[MTL_MAX_TX_QUEUES];
40 };
41
42 enum stmmac_txbuf_type {
43 STMMAC_TXBUF_T_SKB,
44 STMMAC_TXBUF_T_XDP_TX,
45 STMMAC_TXBUF_T_XDP_NDO,
46 STMMAC_TXBUF_T_XSK_TX,
47 };
48
49 struct stmmac_tx_info {
50 struct xsk_tx_metadata_compl xsk_meta;
51 dma_addr_t buf;
52 unsigned len;
53 enum stmmac_txbuf_type buf_type;
54 bool map_as_page;
55 bool last_segment;
56 bool is_jumbo;
57 };
58
59 #define STMMAC_TBS_AVAIL BIT(0)
60 #define STMMAC_TBS_EN BIT(1)
61
62 /* Frequently used values are kept adjacent for cache effect */
63 struct stmmac_tx_queue {
64 u32 tx_count_frames;
65 int tbs;
66 struct hrtimer txtimer;
67 u32 queue_index;
68 struct stmmac_priv *priv_data;
69 struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp;
70 struct dma_edesc *dma_entx;
71 struct dma_desc *dma_tx;
72 union {
73 struct sk_buff **tx_skbuff;
74 struct xdp_frame **xdpf;
75 };
76 struct stmmac_tx_info *tx_skbuff_dma;
77 struct xsk_buff_pool *xsk_pool;
78 u32 xsk_frames_done;
79 unsigned int cur_tx;
80 unsigned int dirty_tx;
81 dma_addr_t dma_tx_phy;
82 u32 mss;
83 };
84
85 struct stmmac_rx_buffer {
86 union {
87 struct {
88 struct page *page;
89 dma_addr_t addr;
90 __u32 page_offset;
91 };
92 struct xdp_buff *xdp;
93 };
94 struct page *sec_page;
95 dma_addr_t sec_addr;
96 };
97
98 struct stmmac_xdp_buff {
99 struct xdp_buff xdp;
100 struct stmmac_priv *priv;
101 struct dma_desc *desc;
102 struct dma_desc *ndesc;
103 };
104
105 struct stmmac_metadata_request {
106 struct stmmac_priv *priv;
107 struct dma_desc *tx_desc;
108 bool *set_ic;
109 struct dma_edesc *edesc;
110 int tbs;
111 };
112
113 struct stmmac_xsk_tx_complete {
114 struct stmmac_priv *priv;
115 struct dma_desc *desc;
116 };
117
118 struct stmmac_rx_queue {
119 u32 rx_count_frames;
120 u32 queue_index;
121 struct xdp_rxq_info xdp_rxq;
122 struct xsk_buff_pool *xsk_pool;
123 struct page_pool *page_pool;
124 struct stmmac_rx_buffer *buf_pool;
125 struct stmmac_priv *priv_data;
126 struct dma_extended_desc *dma_erx;
127 struct dma_desc *dma_rx ____cacheline_aligned_in_smp;
128 unsigned int cur_rx;
129 unsigned int dirty_rx;
130 unsigned int buf_alloc_num;
131 unsigned int napi_skb_frag_size;
132 dma_addr_t dma_rx_phy;
133 unsigned int state_saved;
134 struct {
135 struct sk_buff *skb;
136 unsigned int len;
137 unsigned int error;
138 } state;
139 };
140
141 struct stmmac_channel {
142 struct napi_struct rx_napi ____cacheline_aligned_in_smp;
143 struct napi_struct tx_napi ____cacheline_aligned_in_smp;
144 struct napi_struct rxtx_napi ____cacheline_aligned_in_smp;
145 struct stmmac_priv *priv_data;
146 spinlock_t lock;
147 u32 index;
148 };
149
150 struct stmmac_fpe_cfg {
151 struct ethtool_mmsv mmsv;
152 const struct stmmac_fpe_reg *reg;
153 u32 fpe_csr; /* MAC_FPE_CTRL_STS reg cache */
154 };
155
156 struct stmmac_tc_entry {
157 bool in_use;
158 bool in_hw;
159 bool is_last;
160 bool is_frag;
161 void *frag_ptr;
162 unsigned int table_pos;
163 u32 handle;
164 u32 prio;
165 struct {
166 u32 match_data;
167 u32 match_en;
168 u8 af:1;
169 u8 rf:1;
170 u8 im:1;
171 u8 nc:1;
172 u8 res1:4;
173 u8 frame_offset;
174 u8 ok_index;
175 u8 dma_ch_no;
176 u32 res2;
177 } __packed val;
178 };
179
180 #define STMMAC_PPS_MAX 4
181 struct stmmac_pps_cfg {
182 struct timespec64 start;
183 struct timespec64 period;
184 };
185
186 struct stmmac_rss {
187 int enable;
188 u8 key[STMMAC_RSS_HASH_KEY_SIZE];
189 u32 table[STMMAC_RSS_MAX_TABLE_SIZE];
190 };
191
192 #define STMMAC_FLOW_ACTION_DROP BIT(0)
193 struct stmmac_flow_entry {
194 unsigned long cookie;
195 unsigned long action;
196 u8 ip_proto;
197 int in_use;
198 int idx;
199 int is_l4;
200 };
201
202 /* Rx Frame Steering */
203 enum stmmac_rfs_type {
204 STMMAC_RFS_T_VLAN,
205 STMMAC_RFS_T_LLDP,
206 STMMAC_RFS_T_1588,
207 STMMAC_RFS_T_MAX,
208 };
209
210 struct stmmac_rfs_entry {
211 unsigned long cookie;
212 u16 etype;
213 int in_use;
214 int type;
215 int tc;
216 };
217
218 struct stmmac_dma_conf {
219 unsigned int dma_buf_sz;
220
221 /* RX Queue */
222 struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES];
223 unsigned int dma_rx_size;
224
225 /* TX Queue */
226 struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES];
227 unsigned int dma_tx_size;
228 };
229
230 #define EST_GCL 1024
231 struct stmmac_est {
232 int enable;
233 u32 btr_reserve[2];
234 u32 btr_offset[2];
235 u32 btr[2];
236 u32 ctr[2];
237 u32 ter;
238 u32 gcl_unaligned[EST_GCL];
239 u32 gcl[EST_GCL];
240 u32 gcl_size;
241 u32 max_sdu[MTL_MAX_TX_QUEUES];
242 };
243
244 struct stmmac_msi {
245 int sfty_ce_irq;
246 int sfty_ue_irq;
247 int rx_irq[MTL_MAX_RX_QUEUES];
248 int tx_irq[MTL_MAX_TX_QUEUES];
249
250 /*irq name */
251 char int_name_mac[IFNAMSIZ + 9];
252 char int_name_wol[IFNAMSIZ + 9];
253 char int_name_lpi[IFNAMSIZ + 9];
254 char int_name_sfty[IFNAMSIZ + 10];
255 char int_name_sfty_ce[IFNAMSIZ + 10];
256 char int_name_sfty_ue[IFNAMSIZ + 10];
257 char int_name_rx_irq[MTL_MAX_RX_QUEUES][IFNAMSIZ + 14];
258 char int_name_tx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 18];
259 };
260
261 struct stmmac_priv {
262 /* Frequently used values are kept adjacent for cache effect */
263 u32 tx_coal_frames[MTL_MAX_TX_QUEUES];
264 u32 tx_coal_timer[MTL_MAX_TX_QUEUES];
265 u32 rx_coal_frames[MTL_MAX_RX_QUEUES];
266
267 int hwts_tx_en;
268 bool tx_path_in_lpi_mode;
269 bool sph_active;
270 bool sph_capable;
271 u32 sarc_type;
272 u32 rx_riwt[MTL_MAX_RX_QUEUES];
273 int hwts_rx_en;
274 bool tsfupdt_coarse;
275
276 void __iomem *ioaddr;
277 struct net_device *dev;
278 struct device *device;
279 struct mac_device_info *hw;
280 int (*hwif_quirks)(struct stmmac_priv *priv);
281 struct mutex lock;
282
283 struct stmmac_dma_conf dma_conf;
284
285 /* Generic channel for NAPI */
286 struct stmmac_channel channel[STMMAC_CH_MAX];
287
288 unsigned int pause_time;
289 struct mii_bus *mii;
290
291 struct stmmac_pcs *integrated_pcs;
292
293 struct phylink_config phylink_config;
294 struct phylink *phylink;
295
296 struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp;
297 struct stmmac_safety_stats sstats;
298 struct plat_stmmacenet_data *plat;
299 /* Protect est parameters */
300 struct mutex est_lock;
301 struct stmmac_est *est;
302 struct dma_features dma_cap;
303 struct stmmac_counters mmc;
304 int hw_cap_support;
305 int synopsys_id;
306 u32 msg_enable;
307 /* Our MAC Wake-on-Lan options */
308 int wolopts;
309 int wol_irq;
310 u32 gmii_address_bus_config;
311 struct timer_list eee_ctrl_timer;
312 u32 tx_lpi_timer;
313 bool tx_lpi_clk_stop;
314 bool eee_enabled;
315 bool eee_active;
316 bool eee_sw_timer_en;
317 bool legacy_serdes_is_powered;
318 /* descriptor format:
319 * when clear: struct dma_desc or for tx TBS struct dma_edesc
320 * when set, struct dma_extended_desc
321 */
322 bool extend_desc;
323 /* chain_mode: requested descriptor mode */
324 bool chain_mode;
325 /* descriptor_mode: actual descriptor mode,
326 * see STMMAC_CHAIN_MODE or STMMAC_RING_MODE
327 */
328 u8 descriptor_mode;
329 struct kernel_hwtstamp_config tstamp_config;
330 struct ptp_clock *ptp_clock;
331 struct ptp_clock_info ptp_clock_ops;
332 unsigned int default_addend;
333 u32 sub_second_inc;
334 u32 systime_flags;
335 u32 adv_ts;
336 int use_riwt;
337 int irq_wake;
338 rwlock_t ptp_lock;
339 /* Protects auxiliary snapshot registers from concurrent access. */
340 struct mutex aux_ts_lock;
341 wait_queue_head_t tstamp_busy_wait;
342
343 void __iomem *mmcaddr;
344 void __iomem *ptpaddr;
345 void __iomem *estaddr;
346 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
347 unsigned int num_double_vlans;
348 int sfty_irq;
349 struct stmmac_msi *msi;
350
351 #ifdef CONFIG_DEBUG_FS
352 struct dentry *dbgfs_dir;
353 #endif
354
355 unsigned long state;
356 struct workqueue_struct *wq;
357 struct work_struct service_task;
358
359 /* Frame Preemption feature (FPE) */
360 struct stmmac_fpe_cfg fpe_cfg;
361
362 /* TC Handling */
363 unsigned int tc_entries_max;
364 unsigned int tc_off_max;
365 struct stmmac_tc_entry *tc_entries;
366 unsigned int flow_entries_max;
367 struct stmmac_flow_entry *flow_entries;
368 unsigned int rfs_entries_max[STMMAC_RFS_T_MAX];
369 unsigned int rfs_entries_cnt[STMMAC_RFS_T_MAX];
370 unsigned int rfs_entries_total;
371 struct stmmac_rfs_entry *rfs_entries;
372
373 /* Pulse Per Second output */
374 struct stmmac_pps_cfg pps[STMMAC_PPS_MAX];
375
376 /* Receive Side Scaling */
377 struct stmmac_rss rss;
378
379 /* XDP BPF Program */
380 unsigned long *af_xdp_zc_qps;
381 struct bpf_prog *xdp_prog;
382
383 struct devlink *devlink;
384 };
385
386 enum stmmac_state {
387 STMMAC_DOWN,
388 STMMAC_RESET_REQUESTED,
389 STMMAC_RESETING,
390 STMMAC_SERVICE_SCHED,
391 };
392
393 extern const struct dev_pm_ops stmmac_simple_pm_ops;
394
395 int stmmac_mdio_unregister(struct net_device *ndev);
396 int stmmac_mdio_register(struct net_device *ndev);
397 int stmmac_mdio_reset(struct mii_bus *mii);
398 void stmmac_mdio_lock(struct stmmac_priv *priv);
399 void stmmac_mdio_unlock(struct stmmac_priv *priv);
400 int stmmac_pcs_setup(struct net_device *ndev);
401 void stmmac_pcs_clean(struct net_device *ndev);
402 void stmmac_set_ethtool_ops(struct net_device *netdev);
403
404 void stmmac_ptp_register(struct stmmac_priv *priv);
405 void stmmac_ptp_unregister(struct stmmac_priv *priv);
406 int stmmac_xdp_open(struct net_device *dev);
407 void stmmac_xdp_release(struct net_device *dev);
408 int stmmac_get_phy_intf_sel(phy_interface_t interface);
409 int stmmac_resume(struct device *dev);
410 int stmmac_suspend(struct device *dev);
411 void stmmac_dvr_remove(struct device *dev);
412 int stmmac_dvr_probe(struct device *device,
413 struct plat_stmmacenet_data *plat_dat,
414 struct stmmac_resources *res);
415 int stmmac_reinit_queues(struct net_device *dev, u8 rx_cnt, u8 tx_cnt);
416 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size);
417 int stmmac_set_clk_tx_rate(void *bsp_priv, struct clk *clk_tx_i,
418 phy_interface_t interface, int speed);
419
420 struct plat_stmmacenet_data *stmmac_plat_dat_alloc(struct device *dev);
421
stmmac_xdp_is_enabled(struct stmmac_priv * priv)422 static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv)
423 {
424 return !!priv->xdp_prog;
425 }
426
427 void stmmac_disable_rx_queue(struct stmmac_priv *priv, u32 queue);
428 void stmmac_enable_rx_queue(struct stmmac_priv *priv, u32 queue);
429 void stmmac_disable_tx_queue(struct stmmac_priv *priv, u32 queue);
430 void stmmac_enable_tx_queue(struct stmmac_priv *priv, u32 queue);
431 int stmmac_xsk_wakeup(struct net_device *dev, u32 queue, u32 flags);
432 struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time,
433 ktime_t current_time,
434 u64 cycle_time);
435
436 #if IS_ENABLED(CONFIG_STMMAC_SELFTESTS)
437 void stmmac_selftest_run(struct net_device *dev,
438 struct ethtool_test *etest, u64 *buf);
439 void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data);
440 int stmmac_selftest_get_count(struct stmmac_priv *priv);
441 #else
stmmac_selftest_run(struct net_device * dev,struct ethtool_test * etest,u64 * buf)442 static inline void stmmac_selftest_run(struct net_device *dev,
443 struct ethtool_test *etest, u64 *buf)
444 {
445 /* Not enabled */
446 }
stmmac_selftest_get_strings(struct stmmac_priv * priv,u8 * data)447 static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv,
448 u8 *data)
449 {
450 /* Not enabled */
451 }
stmmac_selftest_get_count(struct stmmac_priv * priv)452 static inline int stmmac_selftest_get_count(struct stmmac_priv *priv)
453 {
454 return -EOPNOTSUPP;
455 }
456 #endif /* CONFIG_STMMAC_SELFTESTS */
457
458 #endif /* __STMMAC_H__ */
459