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1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
3 * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
4 */
5#ifndef _SJA1105_H
6#define _SJA1105_H
7
8#include <linux/ptp_clock_kernel.h>
9#include <linux/timecounter.h>
10#include <linux/dsa/sja1105.h>
11#include <linux/dsa/8021q.h>
12#include <net/dsa.h>
13#include <linux/mutex.h>
14#include "sja1105_static_config.h"
15
16#define SJA1105_NUM_PORTS 5
17#define SJA1105_NUM_TC 8
18#define SJA1105ET_FDB_BIN_SIZE 4
19/* The hardware value is in multiples of 10 ms.
20 * The passed parameter is in multiples of 1 ms.
21 */
22#define SJA1105_AGEING_TIME_MS(ms) ((ms) / 10)
23#define SJA1105_NUM_L2_POLICERS 45
24
25typedef enum {
26 SPI_READ = 0,
27 SPI_WRITE = 1,
28} sja1105_spi_rw_mode_t;
29
30#include "sja1105_tas.h"
31#include "sja1105_ptp.h"
32
33/* Keeps the different addresses between E/T and P/Q/R/S */
34struct sja1105_regs {
35 u64 device_id;
36 u64 prod_id;
37 u64 status;
38 u64 port_control;
39 u64 rgu;
40 u64 vl_status;
41 u64 config;
42 u64 sgmii;
43 u64 rmii_pll1;
44 u64 ptppinst;
45 u64 ptppindur;
46 u64 ptp_control;
47 u64 ptpclkval;
48 u64 ptpclkrate;
49 u64 ptpclkcorp;
50 u64 ptpsyncts;
51 u64 ptpschtm;
52 u64 ptpegr_ts[SJA1105_NUM_PORTS];
53 u64 pad_mii_tx[SJA1105_NUM_PORTS];
54 u64 pad_mii_rx[SJA1105_NUM_PORTS];
55 u64 pad_mii_id[SJA1105_NUM_PORTS];
56 u64 cgu_idiv[SJA1105_NUM_PORTS];
57 u64 mii_tx_clk[SJA1105_NUM_PORTS];
58 u64 mii_rx_clk[SJA1105_NUM_PORTS];
59 u64 mii_ext_tx_clk[SJA1105_NUM_PORTS];
60 u64 mii_ext_rx_clk[SJA1105_NUM_PORTS];
61 u64 rgmii_tx_clk[SJA1105_NUM_PORTS];
62 u64 rmii_ref_clk[SJA1105_NUM_PORTS];
63 u64 rmii_ext_tx_clk[SJA1105_NUM_PORTS];
64 u64 mac[SJA1105_NUM_PORTS];
65 u64 mac_hl1[SJA1105_NUM_PORTS];
66 u64 mac_hl2[SJA1105_NUM_PORTS];
67 u64 ether_stats[SJA1105_NUM_PORTS];
68 u64 qlevel[SJA1105_NUM_PORTS];
69};
70
71struct sja1105_info {
72 u64 device_id;
73 /* Needed for distinction between P and R, and between Q and S
74 * (since the parts with/without SGMII share the same
75 * switch core and device_id)
76 */
77 u64 part_no;
78 /* E/T and P/Q/R/S have partial timestamps of different sizes.
79 * They must be reconstructed on both families anyway to get the full
80 * 64-bit values back.
81 */
82 int ptp_ts_bits;
83 /* Also SPI commands are of different sizes to retrieve
84 * the egress timestamps.
85 */
86 int ptpegr_ts_bytes;
87 int num_cbs_shapers;
88 const struct sja1105_dynamic_table_ops *dyn_ops;
89 const struct sja1105_table_ops *static_ops;
90 const struct sja1105_regs *regs;
91 /* Both E/T and P/Q/R/S have quirks when it comes to popping the S-Tag
92 * from double-tagged frames. E/T will pop it only when it's equal to
93 * TPID from the General Parameters Table, while P/Q/R/S will only
94 * pop it when it's equal to TPID2.
95 */
96 u16 qinq_tpid;
97 int (*reset_cmd)(struct dsa_switch *ds);
98 int (*setup_rgmii_delay)(const void *ctx, int port);
99 /* Prototypes from include/net/dsa.h */
100 int (*fdb_add_cmd)(struct dsa_switch *ds, int port,
101 const unsigned char *addr, u16 vid);
102 int (*fdb_del_cmd)(struct dsa_switch *ds, int port,
103 const unsigned char *addr, u16 vid);
104 void (*ptp_cmd_packing)(u8 *buf, struct sja1105_ptp_cmd *cmd,
105 enum packing_op op);
106 const char *name;
107};
108
109enum sja1105_key_type {
110 SJA1105_KEY_BCAST,
111 SJA1105_KEY_TC,
112 SJA1105_KEY_VLAN_UNAWARE_VL,
113 SJA1105_KEY_VLAN_AWARE_VL,
114};
115
116struct sja1105_key {
117 enum sja1105_key_type type;
118
119 union {
120 /* SJA1105_KEY_TC */
121 struct {
122 int pcp;
123 } tc;
124
125 /* SJA1105_KEY_VLAN_UNAWARE_VL */
126 /* SJA1105_KEY_VLAN_AWARE_VL */
127 struct {
128 u64 dmac;
129 u16 vid;
130 u16 pcp;
131 } vl;
132 };
133};
134
135enum sja1105_rule_type {
136 SJA1105_RULE_BCAST_POLICER,
137 SJA1105_RULE_TC_POLICER,
138 SJA1105_RULE_VL,
139};
140
141enum sja1105_vl_type {
142 SJA1105_VL_NONCRITICAL,
143 SJA1105_VL_RATE_CONSTRAINED,
144 SJA1105_VL_TIME_TRIGGERED,
145};
146
147struct sja1105_rule {
148 struct list_head list;
149 unsigned long cookie;
150 unsigned long port_mask;
151 struct sja1105_key key;
152 enum sja1105_rule_type type;
153
154 /* Action */
155 union {
156 /* SJA1105_RULE_BCAST_POLICER */
157 struct {
158 int sharindx;
159 } bcast_pol;
160
161 /* SJA1105_RULE_TC_POLICER */
162 struct {
163 int sharindx;
164 } tc_pol;
165
166 /* SJA1105_RULE_VL */
167 struct {
168 enum sja1105_vl_type type;
169 unsigned long destports;
170 int sharindx;
171 int maxlen;
172 int ipv;
173 u64 base_time;
174 u64 cycle_time;
175 int num_entries;
176 struct action_gate_entry *entries;
177 struct flow_stats stats;
178 } vl;
179 };
180};
181
182struct sja1105_flow_block {
183 struct list_head rules;
184 bool l2_policer_used[SJA1105_NUM_L2_POLICERS];
185 int num_virtual_links;
186};
187
188struct sja1105_bridge_vlan {
189 struct list_head list;
190 int port;
191 u16 vid;
192 bool pvid;
193 bool untagged;
194};
195
196enum sja1105_vlan_state {
197 SJA1105_VLAN_UNAWARE,
198 SJA1105_VLAN_BEST_EFFORT,
199 SJA1105_VLAN_FILTERING_FULL,
200};
201
202struct sja1105_private {
203 struct sja1105_static_config static_config;
204 bool rgmii_rx_delay[SJA1105_NUM_PORTS];
205 bool rgmii_tx_delay[SJA1105_NUM_PORTS];
206 bool best_effort_vlan_filtering;
207 const struct sja1105_info *info;
208 struct gpio_desc *reset_gpio;
209 struct spi_device *spidev;
210 struct dsa_switch *ds;
211 struct list_head dsa_8021q_vlans;
212 struct list_head bridge_vlans;
213 struct list_head crosschip_links;
214 struct sja1105_flow_block flow_block;
215 struct sja1105_port ports[SJA1105_NUM_PORTS];
216 /* Serializes transmission of management frames so that
217 * the switch doesn't confuse them with one another.
218 */
219 struct mutex mgmt_lock;
220 bool expect_dsa_8021q;
221 enum sja1105_vlan_state vlan_state;
222 struct sja1105_cbs_entry *cbs;
223 struct sja1105_tagger_data tagger_data;
224 struct sja1105_ptp_data ptp_data;
225 struct sja1105_tas_data tas_data;
226};
227
228#include "sja1105_dynamic_config.h"
229
230struct sja1105_spi_message {
231 u64 access;
232 u64 read_count;
233 u64 address;
234};
235
236/* From sja1105_main.c */
237enum sja1105_reset_reason {
238 SJA1105_VLAN_FILTERING = 0,
239 SJA1105_RX_HWTSTAMPING,
240 SJA1105_AGEING_TIME,
241 SJA1105_SCHEDULING,
242 SJA1105_BEST_EFFORT_POLICING,
243 SJA1105_VIRTUAL_LINKS,
244};
245
246int sja1105_static_config_reload(struct sja1105_private *priv,
247 enum sja1105_reset_reason reason);
248
249void sja1105_frame_memory_partitioning(struct sja1105_private *priv);
250
251/* From sja1105_spi.c */
252int sja1105_xfer_buf(const struct sja1105_private *priv,
253 sja1105_spi_rw_mode_t rw, u64 reg_addr,
254 u8 *buf, size_t len);
255int sja1105_xfer_u32(const struct sja1105_private *priv,
256 sja1105_spi_rw_mode_t rw, u64 reg_addr, u32 *value,
257 struct ptp_system_timestamp *ptp_sts);
258int sja1105_xfer_u64(const struct sja1105_private *priv,
259 sja1105_spi_rw_mode_t rw, u64 reg_addr, u64 *value,
260 struct ptp_system_timestamp *ptp_sts);
261int sja1105_static_config_upload(struct sja1105_private *priv);
262int sja1105_inhibit_tx(const struct sja1105_private *priv,
263 unsigned long port_bitmap, bool tx_inhibited);
264
265extern const struct sja1105_info sja1105e_info;
266extern const struct sja1105_info sja1105t_info;
267extern const struct sja1105_info sja1105p_info;
268extern const struct sja1105_info sja1105q_info;
269extern const struct sja1105_info sja1105r_info;
270extern const struct sja1105_info sja1105s_info;
271
272/* From sja1105_clocking.c */
273
274typedef enum {
275 XMII_MAC = 0,
276 XMII_PHY = 1,
277} sja1105_mii_role_t;
278
279typedef enum {
280 XMII_MODE_MII = 0,
281 XMII_MODE_RMII = 1,
282 XMII_MODE_RGMII = 2,
283 XMII_MODE_SGMII = 3,
284} sja1105_phy_interface_t;
285
286typedef enum {
287 SJA1105_SPEED_10MBPS = 3,
288 SJA1105_SPEED_100MBPS = 2,
289 SJA1105_SPEED_1000MBPS = 1,
290 SJA1105_SPEED_AUTO = 0,
291} sja1105_speed_t;
292
293int sja1105pqrs_setup_rgmii_delay(const void *ctx, int port);
294int sja1105_clocking_setup_port(struct sja1105_private *priv, int port);
295int sja1105_clocking_setup(struct sja1105_private *priv);
296
297/* From sja1105_ethtool.c */
298void sja1105_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data);
299void sja1105_get_strings(struct dsa_switch *ds, int port,
300 u32 stringset, u8 *data);
301int sja1105_get_sset_count(struct dsa_switch *ds, int port, int sset);
302
303/* From sja1105_dynamic_config.c */
304int sja1105_dynamic_config_read(struct sja1105_private *priv,
305 enum sja1105_blk_idx blk_idx,
306 int index, void *entry);
307int sja1105_dynamic_config_write(struct sja1105_private *priv,
308 enum sja1105_blk_idx blk_idx,
309 int index, void *entry, bool keep);
310
311enum sja1105_iotag {
312 SJA1105_C_TAG = 0, /* Inner VLAN header */
313 SJA1105_S_TAG = 1, /* Outer VLAN header */
314};
315
316u8 sja1105et_fdb_hash(struct sja1105_private *priv, const u8 *addr, u16 vid);
317int sja1105et_fdb_add(struct dsa_switch *ds, int port,
318 const unsigned char *addr, u16 vid);
319int sja1105et_fdb_del(struct dsa_switch *ds, int port,
320 const unsigned char *addr, u16 vid);
321int sja1105pqrs_fdb_add(struct dsa_switch *ds, int port,
322 const unsigned char *addr, u16 vid);
323int sja1105pqrs_fdb_del(struct dsa_switch *ds, int port,
324 const unsigned char *addr, u16 vid);
325
326/* From sja1105_flower.c */
327int sja1105_cls_flower_del(struct dsa_switch *ds, int port,
328 struct flow_cls_offload *cls, bool ingress);
329int sja1105_cls_flower_add(struct dsa_switch *ds, int port,
330 struct flow_cls_offload *cls, bool ingress);
331int sja1105_cls_flower_stats(struct dsa_switch *ds, int port,
332 struct flow_cls_offload *cls, bool ingress);
333void sja1105_flower_setup(struct dsa_switch *ds);
334void sja1105_flower_teardown(struct dsa_switch *ds);
335struct sja1105_rule *sja1105_rule_find(struct sja1105_private *priv,
336 unsigned long cookie);
337
338#endif