1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*******************************************************************************
3 Copyright (C) 2007-2009 STMicroelectronics Ltd
6 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
7 *******************************************************************************/
12 #define STMMAC_RESOURCE_NAME "stmmaceth"
13 #define DRV_MODULE_VERSION "Jan_2016"
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>
22 #include <linux/ptp_clock_kernel.h>
23 #include <linux/net_tstamp.h>
24 #include <linux/reset.h>
25 #include <net/page_pool.h>
27 struct stmmac_resources {
35 int rx_irq[MTL_MAX_RX_QUEUES];
36 int tx_irq[MTL_MAX_TX_QUEUES];
39 enum stmmac_txbuf_type {
41 STMMAC_TXBUF_T_XDP_TX,
42 STMMAC_TXBUF_T_XDP_NDO,
45 struct stmmac_tx_info {
51 enum stmmac_txbuf_type buf_type;
54 #define STMMAC_TBS_AVAIL BIT(0)
55 #define STMMAC_TBS_EN BIT(1)
57 /* Frequently used values are kept adjacent for cache effect */
58 struct stmmac_tx_queue {
61 struct hrtimer txtimer;
63 struct stmmac_priv *priv_data;
64 struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp;
65 struct dma_edesc *dma_entx;
66 struct dma_desc *dma_tx;
68 struct sk_buff **tx_skbuff;
69 struct xdp_frame **xdpf;
71 struct stmmac_tx_info *tx_skbuff_dma;
73 unsigned int dirty_tx;
74 dma_addr_t dma_tx_phy;
79 struct stmmac_rx_buffer {
83 struct page *sec_page;
87 struct stmmac_rx_queue {
90 struct xdp_rxq_info xdp_rxq;
91 struct page_pool *page_pool;
92 struct stmmac_rx_buffer *buf_pool;
93 struct stmmac_priv *priv_data;
94 struct dma_extended_desc *dma_erx;
95 struct dma_desc *dma_rx ____cacheline_aligned_in_smp;
97 unsigned int dirty_rx;
99 dma_addr_t dma_rx_phy;
101 unsigned int state_saved;
109 struct stmmac_channel {
110 struct napi_struct rx_napi ____cacheline_aligned_in_smp;
111 struct napi_struct tx_napi ____cacheline_aligned_in_smp;
112 struct stmmac_priv *priv_data;
117 struct stmmac_tc_entry {
123 unsigned int table_pos;
141 #define STMMAC_PPS_MAX 4
142 struct stmmac_pps_cfg {
144 struct timespec64 start;
145 struct timespec64 period;
150 u8 key[STMMAC_RSS_HASH_KEY_SIZE];
151 u32 table[STMMAC_RSS_MAX_TABLE_SIZE];
154 #define STMMAC_FLOW_ACTION_DROP BIT(0)
155 struct stmmac_flow_entry {
156 unsigned long cookie;
157 unsigned long action;
165 /* Frequently used values are kept adjacent for cache effect */
166 u32 tx_coal_frames[MTL_MAX_TX_QUEUES];
167 u32 tx_coal_timer[MTL_MAX_TX_QUEUES];
168 u32 rx_coal_frames[MTL_MAX_TX_QUEUES];
172 bool tx_path_in_lpi_mode;
178 unsigned int dma_buf_sz;
179 unsigned int rx_copybreak;
180 u32 rx_riwt[MTL_MAX_TX_QUEUES];
183 void __iomem *ioaddr;
184 struct net_device *dev;
185 struct device *device;
186 struct mac_device_info *hw;
187 int (*hwif_quirks)(struct stmmac_priv *priv);
191 struct stmmac_rx_queue rx_queue[MTL_MAX_RX_QUEUES];
192 unsigned int dma_rx_size;
195 struct stmmac_tx_queue tx_queue[MTL_MAX_TX_QUEUES];
196 unsigned int dma_tx_size;
198 /* Generic channel for NAPI */
199 struct stmmac_channel channel[STMMAC_CH_MAX];
202 unsigned int flow_ctrl;
205 int mii_irq[PHY_MAX_ADDR];
207 struct phylink_config phylink_config;
208 struct phylink *phylink;
210 struct stmmac_extra_stats xstats ____cacheline_aligned_in_smp;
211 struct stmmac_safety_stats sstats;
212 struct plat_stmmacenet_data *plat;
213 struct dma_features dma_cap;
214 struct stmmac_counters mmc;
221 struct timer_list eee_ctrl_timer;
228 bool eee_sw_timer_en;
230 unsigned int chain_mode;
232 struct hwtstamp_config tstamp_config;
233 struct ptp_clock *ptp_clock;
234 struct ptp_clock_info ptp_clock_ops;
235 unsigned int default_addend;
242 void __iomem *mmcaddr;
243 void __iomem *ptpaddr;
244 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
247 int rx_irq[MTL_MAX_RX_QUEUES];
248 int tx_irq[MTL_MAX_TX_QUEUES];
250 char int_name_mac[IFNAMSIZ + 9];
251 char int_name_wol[IFNAMSIZ + 9];
252 char int_name_lpi[IFNAMSIZ + 9];
253 char int_name_sfty_ce[IFNAMSIZ + 10];
254 char int_name_sfty_ue[IFNAMSIZ + 10];
255 char int_name_rx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 14];
256 char int_name_tx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 18];
258 #ifdef CONFIG_DEBUG_FS
259 struct dentry *dbgfs_dir;
263 struct workqueue_struct *wq;
264 struct work_struct service_task;
266 /* Workqueue for handling FPE hand-shaking */
267 unsigned long fpe_task_state;
268 struct workqueue_struct *fpe_wq;
269 struct work_struct fpe_task;
270 char wq_name[IFNAMSIZ + 4];
273 unsigned int tc_entries_max;
274 unsigned int tc_off_max;
275 struct stmmac_tc_entry *tc_entries;
276 unsigned int flow_entries_max;
277 struct stmmac_flow_entry *flow_entries;
279 /* Pulse Per Second output */
280 struct stmmac_pps_cfg pps[STMMAC_PPS_MAX];
282 /* Receive Side Scaling */
283 struct stmmac_rss rss;
285 /* XDP BPF Program */
286 struct bpf_prog *xdp_prog;
291 STMMAC_RESET_REQUESTED,
293 STMMAC_SERVICE_SCHED,
296 int stmmac_mdio_unregister(struct net_device *ndev);
297 int stmmac_mdio_register(struct net_device *ndev);
298 int stmmac_mdio_reset(struct mii_bus *mii);
299 void stmmac_set_ethtool_ops(struct net_device *netdev);
301 void stmmac_ptp_register(struct stmmac_priv *priv);
302 void stmmac_ptp_unregister(struct stmmac_priv *priv);
303 int stmmac_open(struct net_device *dev);
304 int stmmac_release(struct net_device *dev);
305 int stmmac_resume(struct device *dev);
306 int stmmac_suspend(struct device *dev);
307 int stmmac_dvr_remove(struct device *dev);
308 int stmmac_dvr_probe(struct device *device,
309 struct plat_stmmacenet_data *plat_dat,
310 struct stmmac_resources *res);
311 void stmmac_disable_eee_mode(struct stmmac_priv *priv);
312 bool stmmac_eee_init(struct stmmac_priv *priv);
313 int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt);
314 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size);
315 int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled);
316 void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable);
318 static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv)
320 return !!priv->xdp_prog;
323 static inline unsigned int stmmac_rx_offset(struct stmmac_priv *priv)
325 if (stmmac_xdp_is_enabled(priv))
326 return XDP_PACKET_HEADROOM;
331 #if IS_ENABLED(CONFIG_STMMAC_SELFTESTS)
332 void stmmac_selftest_run(struct net_device *dev,
333 struct ethtool_test *etest, u64 *buf);
334 void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data);
335 int stmmac_selftest_get_count(struct stmmac_priv *priv);
337 static inline void stmmac_selftest_run(struct net_device *dev,
338 struct ethtool_test *etest, u64 *buf)
342 static inline void stmmac_selftest_get_strings(struct stmmac_priv *priv,
347 static inline int stmmac_selftest_get_count(struct stmmac_priv *priv)
351 #endif /* CONFIG_STMMAC_SELFTESTS */
353 #endif /* __STMMAC_H__ */