1 // SPDX-License-Identifier: BSD-3-Clause
2 /* Copyright (c) 2016-2018, NXP Semiconductors
3 * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
4 */
5 #include "sja1105_static_config.h"
6 #include <linux/crc32.h>
7 #include <linux/slab.h>
8 #include <linux/string.h>
9 #include <linux/errno.h>
10
11 /* Convenience wrappers over the generic packing functions. These take into
12 * account the SJA1105 memory layout quirks and provide some level of
13 * programmer protection against incorrect API use. The errors are not expected
14 * to occur durring runtime, therefore printing and swallowing them here is
15 * appropriate instead of clutterring up higher-level code.
16 */
sja1105_pack(void * buf,const u64 * val,int start,int end,size_t len)17 void sja1105_pack(void *buf, const u64 *val, int start, int end, size_t len)
18 {
19 int rc = packing(buf, (u64 *)val, start, end, len,
20 PACK, QUIRK_LSW32_IS_FIRST);
21
22 if (likely(!rc))
23 return;
24
25 if (rc == -EINVAL) {
26 pr_err("Start bit (%d) expected to be larger than end (%d)\n",
27 start, end);
28 } else if (rc == -ERANGE) {
29 if ((start - end + 1) > 64)
30 pr_err("Field %d-%d too large for 64 bits!\n",
31 start, end);
32 else
33 pr_err("Cannot store %llx inside bits %d-%d (would truncate)\n",
34 *val, start, end);
35 }
36 dump_stack();
37 }
38
sja1105_unpack(const void * buf,u64 * val,int start,int end,size_t len)39 void sja1105_unpack(const void *buf, u64 *val, int start, int end, size_t len)
40 {
41 int rc = packing((void *)buf, val, start, end, len,
42 UNPACK, QUIRK_LSW32_IS_FIRST);
43
44 if (likely(!rc))
45 return;
46
47 if (rc == -EINVAL)
48 pr_err("Start bit (%d) expected to be larger than end (%d)\n",
49 start, end);
50 else if (rc == -ERANGE)
51 pr_err("Field %d-%d too large for 64 bits!\n",
52 start, end);
53 dump_stack();
54 }
55
sja1105_packing(void * buf,u64 * val,int start,int end,size_t len,enum packing_op op)56 void sja1105_packing(void *buf, u64 *val, int start, int end,
57 size_t len, enum packing_op op)
58 {
59 int rc = packing(buf, val, start, end, len, op, QUIRK_LSW32_IS_FIRST);
60
61 if (likely(!rc))
62 return;
63
64 if (rc == -EINVAL) {
65 pr_err("Start bit (%d) expected to be larger than end (%d)\n",
66 start, end);
67 } else if (rc == -ERANGE) {
68 if ((start - end + 1) > 64)
69 pr_err("Field %d-%d too large for 64 bits!\n",
70 start, end);
71 else
72 pr_err("Cannot store %llx inside bits %d-%d (would truncate)\n",
73 *val, start, end);
74 }
75 dump_stack();
76 }
77
78 /* Little-endian Ethernet CRC32 of data packed as big-endian u32 words */
sja1105_crc32(const void * buf,size_t len)79 u32 sja1105_crc32(const void *buf, size_t len)
80 {
81 unsigned int i;
82 u64 word;
83 u32 crc;
84
85 /* seed */
86 crc = ~0;
87 for (i = 0; i < len; i += 4) {
88 sja1105_unpack((void *)buf + i, &word, 31, 0, 4);
89 crc = crc32_le(crc, (u8 *)&word, 4);
90 }
91 return ~crc;
92 }
93
sja1105et_avb_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)94 static size_t sja1105et_avb_params_entry_packing(void *buf, void *entry_ptr,
95 enum packing_op op)
96 {
97 const size_t size = SJA1105ET_SIZE_AVB_PARAMS_ENTRY;
98 struct sja1105_avb_params_entry *entry = entry_ptr;
99
100 sja1105_packing(buf, &entry->destmeta, 95, 48, size, op);
101 sja1105_packing(buf, &entry->srcmeta, 47, 0, size, op);
102 return size;
103 }
104
sja1105pqrs_avb_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)105 static size_t sja1105pqrs_avb_params_entry_packing(void *buf, void *entry_ptr,
106 enum packing_op op)
107 {
108 const size_t size = SJA1105PQRS_SIZE_AVB_PARAMS_ENTRY;
109 struct sja1105_avb_params_entry *entry = entry_ptr;
110
111 sja1105_packing(buf, &entry->destmeta, 125, 78, size, op);
112 sja1105_packing(buf, &entry->srcmeta, 77, 30, size, op);
113 return size;
114 }
115
sja1105et_general_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)116 static size_t sja1105et_general_params_entry_packing(void *buf, void *entry_ptr,
117 enum packing_op op)
118 {
119 const size_t size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY;
120 struct sja1105_general_params_entry *entry = entry_ptr;
121
122 sja1105_packing(buf, &entry->vllupformat, 319, 319, size, op);
123 sja1105_packing(buf, &entry->mirr_ptacu, 318, 318, size, op);
124 sja1105_packing(buf, &entry->switchid, 317, 315, size, op);
125 sja1105_packing(buf, &entry->hostprio, 314, 312, size, op);
126 sja1105_packing(buf, &entry->mac_fltres1, 311, 264, size, op);
127 sja1105_packing(buf, &entry->mac_fltres0, 263, 216, size, op);
128 sja1105_packing(buf, &entry->mac_flt1, 215, 168, size, op);
129 sja1105_packing(buf, &entry->mac_flt0, 167, 120, size, op);
130 sja1105_packing(buf, &entry->incl_srcpt1, 119, 119, size, op);
131 sja1105_packing(buf, &entry->incl_srcpt0, 118, 118, size, op);
132 sja1105_packing(buf, &entry->send_meta1, 117, 117, size, op);
133 sja1105_packing(buf, &entry->send_meta0, 116, 116, size, op);
134 sja1105_packing(buf, &entry->casc_port, 115, 113, size, op);
135 sja1105_packing(buf, &entry->host_port, 112, 110, size, op);
136 sja1105_packing(buf, &entry->mirr_port, 109, 107, size, op);
137 sja1105_packing(buf, &entry->vlmarker, 106, 75, size, op);
138 sja1105_packing(buf, &entry->vlmask, 74, 43, size, op);
139 sja1105_packing(buf, &entry->tpid, 42, 27, size, op);
140 sja1105_packing(buf, &entry->ignore2stf, 26, 26, size, op);
141 sja1105_packing(buf, &entry->tpid2, 25, 10, size, op);
142 return size;
143 }
144
145 static size_t
sja1105pqrs_general_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)146 sja1105pqrs_general_params_entry_packing(void *buf, void *entry_ptr,
147 enum packing_op op)
148 {
149 const size_t size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY;
150 struct sja1105_general_params_entry *entry = entry_ptr;
151
152 sja1105_packing(buf, &entry->vllupformat, 351, 351, size, op);
153 sja1105_packing(buf, &entry->mirr_ptacu, 350, 350, size, op);
154 sja1105_packing(buf, &entry->switchid, 349, 347, size, op);
155 sja1105_packing(buf, &entry->hostprio, 346, 344, size, op);
156 sja1105_packing(buf, &entry->mac_fltres1, 343, 296, size, op);
157 sja1105_packing(buf, &entry->mac_fltres0, 295, 248, size, op);
158 sja1105_packing(buf, &entry->mac_flt1, 247, 200, size, op);
159 sja1105_packing(buf, &entry->mac_flt0, 199, 152, size, op);
160 sja1105_packing(buf, &entry->incl_srcpt1, 151, 151, size, op);
161 sja1105_packing(buf, &entry->incl_srcpt0, 150, 150, size, op);
162 sja1105_packing(buf, &entry->send_meta1, 149, 149, size, op);
163 sja1105_packing(buf, &entry->send_meta0, 148, 148, size, op);
164 sja1105_packing(buf, &entry->casc_port, 147, 145, size, op);
165 sja1105_packing(buf, &entry->host_port, 144, 142, size, op);
166 sja1105_packing(buf, &entry->mirr_port, 141, 139, size, op);
167 sja1105_packing(buf, &entry->vlmarker, 138, 107, size, op);
168 sja1105_packing(buf, &entry->vlmask, 106, 75, size, op);
169 sja1105_packing(buf, &entry->tpid, 74, 59, size, op);
170 sja1105_packing(buf, &entry->ignore2stf, 58, 58, size, op);
171 sja1105_packing(buf, &entry->tpid2, 57, 42, size, op);
172 sja1105_packing(buf, &entry->queue_ts, 41, 41, size, op);
173 sja1105_packing(buf, &entry->egrmirrvid, 40, 29, size, op);
174 sja1105_packing(buf, &entry->egrmirrpcp, 28, 26, size, op);
175 sja1105_packing(buf, &entry->egrmirrdei, 25, 25, size, op);
176 sja1105_packing(buf, &entry->replay_port, 24, 22, size, op);
177 return size;
178 }
179
180 static size_t
sja1105_l2_forwarding_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)181 sja1105_l2_forwarding_params_entry_packing(void *buf, void *entry_ptr,
182 enum packing_op op)
183 {
184 const size_t size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY;
185 struct sja1105_l2_forwarding_params_entry *entry = entry_ptr;
186 int offset, i;
187
188 sja1105_packing(buf, &entry->max_dynp, 95, 93, size, op);
189 for (i = 0, offset = 13; i < 8; i++, offset += 10)
190 sja1105_packing(buf, &entry->part_spc[i],
191 offset + 9, offset + 0, size, op);
192 return size;
193 }
194
sja1105_l2_forwarding_entry_packing(void * buf,void * entry_ptr,enum packing_op op)195 size_t sja1105_l2_forwarding_entry_packing(void *buf, void *entry_ptr,
196 enum packing_op op)
197 {
198 const size_t size = SJA1105_SIZE_L2_FORWARDING_ENTRY;
199 struct sja1105_l2_forwarding_entry *entry = entry_ptr;
200 int offset, i;
201
202 sja1105_packing(buf, &entry->bc_domain, 63, 59, size, op);
203 sja1105_packing(buf, &entry->reach_port, 58, 54, size, op);
204 sja1105_packing(buf, &entry->fl_domain, 53, 49, size, op);
205 for (i = 0, offset = 25; i < 8; i++, offset += 3)
206 sja1105_packing(buf, &entry->vlan_pmap[i],
207 offset + 2, offset + 0, size, op);
208 return size;
209 }
210
211 static size_t
sja1105et_l2_lookup_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)212 sja1105et_l2_lookup_params_entry_packing(void *buf, void *entry_ptr,
213 enum packing_op op)
214 {
215 const size_t size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_ENTRY;
216 struct sja1105_l2_lookup_params_entry *entry = entry_ptr;
217
218 sja1105_packing(buf, &entry->maxage, 31, 17, size, op);
219 sja1105_packing(buf, &entry->dyn_tbsz, 16, 14, size, op);
220 sja1105_packing(buf, &entry->poly, 13, 6, size, op);
221 sja1105_packing(buf, &entry->shared_learn, 5, 5, size, op);
222 sja1105_packing(buf, &entry->no_enf_hostprt, 4, 4, size, op);
223 sja1105_packing(buf, &entry->no_mgmt_learn, 3, 3, size, op);
224 return size;
225 }
226
227 static size_t
sja1105pqrs_l2_lookup_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)228 sja1105pqrs_l2_lookup_params_entry_packing(void *buf, void *entry_ptr,
229 enum packing_op op)
230 {
231 const size_t size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY;
232 struct sja1105_l2_lookup_params_entry *entry = entry_ptr;
233 int offset, i;
234
235 for (i = 0, offset = 58; i < 5; i++, offset += 11)
236 sja1105_packing(buf, &entry->maxaddrp[i],
237 offset + 10, offset + 0, size, op);
238 sja1105_packing(buf, &entry->maxage, 57, 43, size, op);
239 sja1105_packing(buf, &entry->start_dynspc, 42, 33, size, op);
240 sja1105_packing(buf, &entry->drpnolearn, 32, 28, size, op);
241 sja1105_packing(buf, &entry->shared_learn, 27, 27, size, op);
242 sja1105_packing(buf, &entry->no_enf_hostprt, 26, 26, size, op);
243 sja1105_packing(buf, &entry->no_mgmt_learn, 25, 25, size, op);
244 sja1105_packing(buf, &entry->use_static, 24, 24, size, op);
245 sja1105_packing(buf, &entry->owr_dyn, 23, 23, size, op);
246 sja1105_packing(buf, &entry->learn_once, 22, 22, size, op);
247 return size;
248 }
249
sja1105et_l2_lookup_entry_packing(void * buf,void * entry_ptr,enum packing_op op)250 size_t sja1105et_l2_lookup_entry_packing(void *buf, void *entry_ptr,
251 enum packing_op op)
252 {
253 const size_t size = SJA1105ET_SIZE_L2_LOOKUP_ENTRY;
254 struct sja1105_l2_lookup_entry *entry = entry_ptr;
255
256 sja1105_packing(buf, &entry->vlanid, 95, 84, size, op);
257 sja1105_packing(buf, &entry->macaddr, 83, 36, size, op);
258 sja1105_packing(buf, &entry->destports, 35, 31, size, op);
259 sja1105_packing(buf, &entry->enfport, 30, 30, size, op);
260 sja1105_packing(buf, &entry->index, 29, 20, size, op);
261 return size;
262 }
263
sja1105pqrs_l2_lookup_entry_packing(void * buf,void * entry_ptr,enum packing_op op)264 size_t sja1105pqrs_l2_lookup_entry_packing(void *buf, void *entry_ptr,
265 enum packing_op op)
266 {
267 const size_t size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY;
268 struct sja1105_l2_lookup_entry *entry = entry_ptr;
269
270 if (entry->lockeds) {
271 sja1105_packing(buf, &entry->tsreg, 159, 159, size, op);
272 sja1105_packing(buf, &entry->mirrvlan, 158, 147, size, op);
273 sja1105_packing(buf, &entry->takets, 146, 146, size, op);
274 sja1105_packing(buf, &entry->mirr, 145, 145, size, op);
275 sja1105_packing(buf, &entry->retag, 144, 144, size, op);
276 } else {
277 sja1105_packing(buf, &entry->touched, 159, 159, size, op);
278 sja1105_packing(buf, &entry->age, 158, 144, size, op);
279 }
280 sja1105_packing(buf, &entry->mask_iotag, 143, 143, size, op);
281 sja1105_packing(buf, &entry->mask_vlanid, 142, 131, size, op);
282 sja1105_packing(buf, &entry->mask_macaddr, 130, 83, size, op);
283 sja1105_packing(buf, &entry->iotag, 82, 82, size, op);
284 sja1105_packing(buf, &entry->vlanid, 81, 70, size, op);
285 sja1105_packing(buf, &entry->macaddr, 69, 22, size, op);
286 sja1105_packing(buf, &entry->destports, 21, 17, size, op);
287 sja1105_packing(buf, &entry->enfport, 16, 16, size, op);
288 sja1105_packing(buf, &entry->index, 15, 6, size, op);
289 return size;
290 }
291
sja1105_l2_policing_entry_packing(void * buf,void * entry_ptr,enum packing_op op)292 static size_t sja1105_l2_policing_entry_packing(void *buf, void *entry_ptr,
293 enum packing_op op)
294 {
295 const size_t size = SJA1105_SIZE_L2_POLICING_ENTRY;
296 struct sja1105_l2_policing_entry *entry = entry_ptr;
297
298 sja1105_packing(buf, &entry->sharindx, 63, 58, size, op);
299 sja1105_packing(buf, &entry->smax, 57, 42, size, op);
300 sja1105_packing(buf, &entry->rate, 41, 26, size, op);
301 sja1105_packing(buf, &entry->maxlen, 25, 15, size, op);
302 sja1105_packing(buf, &entry->partition, 14, 12, size, op);
303 return size;
304 }
305
sja1105et_mac_config_entry_packing(void * buf,void * entry_ptr,enum packing_op op)306 static size_t sja1105et_mac_config_entry_packing(void *buf, void *entry_ptr,
307 enum packing_op op)
308 {
309 const size_t size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY;
310 struct sja1105_mac_config_entry *entry = entry_ptr;
311 int offset, i;
312
313 for (i = 0, offset = 72; i < 8; i++, offset += 19) {
314 sja1105_packing(buf, &entry->enabled[i],
315 offset + 0, offset + 0, size, op);
316 sja1105_packing(buf, &entry->base[i],
317 offset + 9, offset + 1, size, op);
318 sja1105_packing(buf, &entry->top[i],
319 offset + 18, offset + 10, size, op);
320 }
321 sja1105_packing(buf, &entry->ifg, 71, 67, size, op);
322 sja1105_packing(buf, &entry->speed, 66, 65, size, op);
323 sja1105_packing(buf, &entry->tp_delin, 64, 49, size, op);
324 sja1105_packing(buf, &entry->tp_delout, 48, 33, size, op);
325 sja1105_packing(buf, &entry->maxage, 32, 25, size, op);
326 sja1105_packing(buf, &entry->vlanprio, 24, 22, size, op);
327 sja1105_packing(buf, &entry->vlanid, 21, 10, size, op);
328 sja1105_packing(buf, &entry->ing_mirr, 9, 9, size, op);
329 sja1105_packing(buf, &entry->egr_mirr, 8, 8, size, op);
330 sja1105_packing(buf, &entry->drpnona664, 7, 7, size, op);
331 sja1105_packing(buf, &entry->drpdtag, 6, 6, size, op);
332 sja1105_packing(buf, &entry->drpuntag, 5, 5, size, op);
333 sja1105_packing(buf, &entry->retag, 4, 4, size, op);
334 sja1105_packing(buf, &entry->dyn_learn, 3, 3, size, op);
335 sja1105_packing(buf, &entry->egress, 2, 2, size, op);
336 sja1105_packing(buf, &entry->ingress, 1, 1, size, op);
337 return size;
338 }
339
sja1105pqrs_mac_config_entry_packing(void * buf,void * entry_ptr,enum packing_op op)340 size_t sja1105pqrs_mac_config_entry_packing(void *buf, void *entry_ptr,
341 enum packing_op op)
342 {
343 const size_t size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY;
344 struct sja1105_mac_config_entry *entry = entry_ptr;
345 int offset, i;
346
347 for (i = 0, offset = 104; i < 8; i++, offset += 19) {
348 sja1105_packing(buf, &entry->enabled[i],
349 offset + 0, offset + 0, size, op);
350 sja1105_packing(buf, &entry->base[i],
351 offset + 9, offset + 1, size, op);
352 sja1105_packing(buf, &entry->top[i],
353 offset + 18, offset + 10, size, op);
354 }
355 sja1105_packing(buf, &entry->ifg, 103, 99, size, op);
356 sja1105_packing(buf, &entry->speed, 98, 97, size, op);
357 sja1105_packing(buf, &entry->tp_delin, 96, 81, size, op);
358 sja1105_packing(buf, &entry->tp_delout, 80, 65, size, op);
359 sja1105_packing(buf, &entry->maxage, 64, 57, size, op);
360 sja1105_packing(buf, &entry->vlanprio, 56, 54, size, op);
361 sja1105_packing(buf, &entry->vlanid, 53, 42, size, op);
362 sja1105_packing(buf, &entry->ing_mirr, 41, 41, size, op);
363 sja1105_packing(buf, &entry->egr_mirr, 40, 40, size, op);
364 sja1105_packing(buf, &entry->drpnona664, 39, 39, size, op);
365 sja1105_packing(buf, &entry->drpdtag, 38, 38, size, op);
366 sja1105_packing(buf, &entry->drpuntag, 35, 35, size, op);
367 sja1105_packing(buf, &entry->retag, 34, 34, size, op);
368 sja1105_packing(buf, &entry->dyn_learn, 33, 33, size, op);
369 sja1105_packing(buf, &entry->egress, 32, 32, size, op);
370 sja1105_packing(buf, &entry->ingress, 31, 31, size, op);
371 return size;
372 }
373
374 static size_t
sja1105_schedule_entry_points_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)375 sja1105_schedule_entry_points_params_entry_packing(void *buf, void *entry_ptr,
376 enum packing_op op)
377 {
378 struct sja1105_schedule_entry_points_params_entry *entry = entry_ptr;
379 const size_t size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY;
380
381 sja1105_packing(buf, &entry->clksrc, 31, 30, size, op);
382 sja1105_packing(buf, &entry->actsubsch, 29, 27, size, op);
383 return size;
384 }
385
386 static size_t
sja1105_schedule_entry_points_entry_packing(void * buf,void * entry_ptr,enum packing_op op)387 sja1105_schedule_entry_points_entry_packing(void *buf, void *entry_ptr,
388 enum packing_op op)
389 {
390 struct sja1105_schedule_entry_points_entry *entry = entry_ptr;
391 const size_t size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY;
392
393 sja1105_packing(buf, &entry->subschindx, 31, 29, size, op);
394 sja1105_packing(buf, &entry->delta, 28, 11, size, op);
395 sja1105_packing(buf, &entry->address, 10, 1, size, op);
396 return size;
397 }
398
sja1105_schedule_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)399 static size_t sja1105_schedule_params_entry_packing(void *buf, void *entry_ptr,
400 enum packing_op op)
401 {
402 const size_t size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY;
403 struct sja1105_schedule_params_entry *entry = entry_ptr;
404 int offset, i;
405
406 for (i = 0, offset = 16; i < 8; i++, offset += 10)
407 sja1105_packing(buf, &entry->subscheind[i],
408 offset + 9, offset + 0, size, op);
409 return size;
410 }
411
sja1105_schedule_entry_packing(void * buf,void * entry_ptr,enum packing_op op)412 static size_t sja1105_schedule_entry_packing(void *buf, void *entry_ptr,
413 enum packing_op op)
414 {
415 const size_t size = SJA1105_SIZE_SCHEDULE_ENTRY;
416 struct sja1105_schedule_entry *entry = entry_ptr;
417
418 sja1105_packing(buf, &entry->winstindex, 63, 54, size, op);
419 sja1105_packing(buf, &entry->winend, 53, 53, size, op);
420 sja1105_packing(buf, &entry->winst, 52, 52, size, op);
421 sja1105_packing(buf, &entry->destports, 51, 47, size, op);
422 sja1105_packing(buf, &entry->setvalid, 46, 46, size, op);
423 sja1105_packing(buf, &entry->txen, 45, 45, size, op);
424 sja1105_packing(buf, &entry->resmedia_en, 44, 44, size, op);
425 sja1105_packing(buf, &entry->resmedia, 43, 36, size, op);
426 sja1105_packing(buf, &entry->vlindex, 35, 26, size, op);
427 sja1105_packing(buf, &entry->delta, 25, 8, size, op);
428 return size;
429 }
430
sja1105_vlan_lookup_entry_packing(void * buf,void * entry_ptr,enum packing_op op)431 size_t sja1105_vlan_lookup_entry_packing(void *buf, void *entry_ptr,
432 enum packing_op op)
433 {
434 const size_t size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY;
435 struct sja1105_vlan_lookup_entry *entry = entry_ptr;
436
437 sja1105_packing(buf, &entry->ving_mirr, 63, 59, size, op);
438 sja1105_packing(buf, &entry->vegr_mirr, 58, 54, size, op);
439 sja1105_packing(buf, &entry->vmemb_port, 53, 49, size, op);
440 sja1105_packing(buf, &entry->vlan_bc, 48, 44, size, op);
441 sja1105_packing(buf, &entry->tag_port, 43, 39, size, op);
442 sja1105_packing(buf, &entry->vlanid, 38, 27, size, op);
443 return size;
444 }
445
sja1105_xmii_params_entry_packing(void * buf,void * entry_ptr,enum packing_op op)446 static size_t sja1105_xmii_params_entry_packing(void *buf, void *entry_ptr,
447 enum packing_op op)
448 {
449 const size_t size = SJA1105_SIZE_XMII_PARAMS_ENTRY;
450 struct sja1105_xmii_params_entry *entry = entry_ptr;
451 int offset, i;
452
453 for (i = 0, offset = 17; i < 5; i++, offset += 3) {
454 sja1105_packing(buf, &entry->xmii_mode[i],
455 offset + 1, offset + 0, size, op);
456 sja1105_packing(buf, &entry->phy_mac[i],
457 offset + 2, offset + 2, size, op);
458 }
459 return size;
460 }
461
sja1105_table_header_packing(void * buf,void * entry_ptr,enum packing_op op)462 size_t sja1105_table_header_packing(void *buf, void *entry_ptr,
463 enum packing_op op)
464 {
465 const size_t size = SJA1105_SIZE_TABLE_HEADER;
466 struct sja1105_table_header *entry = entry_ptr;
467
468 sja1105_packing(buf, &entry->block_id, 31, 24, size, op);
469 sja1105_packing(buf, &entry->len, 55, 32, size, op);
470 sja1105_packing(buf, &entry->crc, 95, 64, size, op);
471 return size;
472 }
473
474 /* WARNING: the *hdr pointer is really non-const, because it is
475 * modifying the CRC of the header for a 2-stage packing operation
476 */
477 void
sja1105_table_header_pack_with_crc(void * buf,struct sja1105_table_header * hdr)478 sja1105_table_header_pack_with_crc(void *buf, struct sja1105_table_header *hdr)
479 {
480 /* First pack the table as-is, then calculate the CRC, and
481 * finally put the proper CRC into the packed buffer
482 */
483 memset(buf, 0, SJA1105_SIZE_TABLE_HEADER);
484 sja1105_table_header_packing(buf, hdr, PACK);
485 hdr->crc = sja1105_crc32(buf, SJA1105_SIZE_TABLE_HEADER - 4);
486 sja1105_pack(buf + SJA1105_SIZE_TABLE_HEADER - 4, &hdr->crc, 31, 0, 4);
487 }
488
sja1105_table_write_crc(u8 * table_start,u8 * crc_ptr)489 static void sja1105_table_write_crc(u8 *table_start, u8 *crc_ptr)
490 {
491 u64 computed_crc;
492 int len_bytes;
493
494 len_bytes = (uintptr_t)(crc_ptr - table_start);
495 computed_crc = sja1105_crc32(table_start, len_bytes);
496 sja1105_pack(crc_ptr, &computed_crc, 31, 0, 4);
497 }
498
499 /* The block IDs that the switches support are unfortunately sparse, so keep a
500 * mapping table to "block indices" and translate back and forth so that we
501 * don't waste useless memory in struct sja1105_static_config.
502 * Also, since the block id comes from essentially untrusted input (unpacking
503 * the static config from userspace) it has to be sanitized (range-checked)
504 * before blindly indexing kernel memory with the blk_idx.
505 */
506 static u64 blk_id_map[BLK_IDX_MAX] = {
507 [BLK_IDX_SCHEDULE] = BLKID_SCHEDULE,
508 [BLK_IDX_SCHEDULE_ENTRY_POINTS] = BLKID_SCHEDULE_ENTRY_POINTS,
509 [BLK_IDX_L2_LOOKUP] = BLKID_L2_LOOKUP,
510 [BLK_IDX_L2_POLICING] = BLKID_L2_POLICING,
511 [BLK_IDX_VLAN_LOOKUP] = BLKID_VLAN_LOOKUP,
512 [BLK_IDX_L2_FORWARDING] = BLKID_L2_FORWARDING,
513 [BLK_IDX_MAC_CONFIG] = BLKID_MAC_CONFIG,
514 [BLK_IDX_SCHEDULE_PARAMS] = BLKID_SCHEDULE_PARAMS,
515 [BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = BLKID_SCHEDULE_ENTRY_POINTS_PARAMS,
516 [BLK_IDX_L2_LOOKUP_PARAMS] = BLKID_L2_LOOKUP_PARAMS,
517 [BLK_IDX_L2_FORWARDING_PARAMS] = BLKID_L2_FORWARDING_PARAMS,
518 [BLK_IDX_AVB_PARAMS] = BLKID_AVB_PARAMS,
519 [BLK_IDX_GENERAL_PARAMS] = BLKID_GENERAL_PARAMS,
520 [BLK_IDX_XMII_PARAMS] = BLKID_XMII_PARAMS,
521 };
522
523 const char *sja1105_static_config_error_msg[] = {
524 [SJA1105_CONFIG_OK] = "",
525 [SJA1105_TTETHERNET_NOT_SUPPORTED] =
526 "schedule-table present, but TTEthernet is "
527 "only supported on T and Q/S",
528 [SJA1105_INCORRECT_TTETHERNET_CONFIGURATION] =
529 "schedule-table present, but one of "
530 "schedule-entry-points-table, schedule-parameters-table or "
531 "schedule-entry-points-parameters table is empty",
532 [SJA1105_MISSING_L2_POLICING_TABLE] =
533 "l2-policing-table needs to have at least one entry",
534 [SJA1105_MISSING_L2_FORWARDING_TABLE] =
535 "l2-forwarding-table is either missing or incomplete",
536 [SJA1105_MISSING_L2_FORWARDING_PARAMS_TABLE] =
537 "l2-forwarding-parameters-table is missing",
538 [SJA1105_MISSING_GENERAL_PARAMS_TABLE] =
539 "general-parameters-table is missing",
540 [SJA1105_MISSING_VLAN_TABLE] =
541 "vlan-lookup-table needs to have at least the default untagged VLAN",
542 [SJA1105_MISSING_XMII_TABLE] =
543 "xmii-table is missing",
544 [SJA1105_MISSING_MAC_TABLE] =
545 "mac-configuration-table needs to contain an entry for each port",
546 [SJA1105_OVERCOMMITTED_FRAME_MEMORY] =
547 "Not allowed to overcommit frame memory. L2 memory partitions "
548 "and VL memory partitions share the same space. The sum of all "
549 "16 memory partitions is not allowed to be larger than 929 "
550 "128-byte blocks (or 910 with retagging). Please adjust "
551 "l2-forwarding-parameters-table.part_spc and/or "
552 "vl-forwarding-parameters-table.partspc.",
553 };
554
555 static sja1105_config_valid_t
static_config_check_memory_size(const struct sja1105_table * tables)556 static_config_check_memory_size(const struct sja1105_table *tables)
557 {
558 const struct sja1105_l2_forwarding_params_entry *l2_fwd_params;
559 int i, mem = 0;
560
561 l2_fwd_params = tables[BLK_IDX_L2_FORWARDING_PARAMS].entries;
562
563 for (i = 0; i < 8; i++)
564 mem += l2_fwd_params->part_spc[i];
565
566 if (mem > SJA1105_MAX_FRAME_MEMORY)
567 return SJA1105_OVERCOMMITTED_FRAME_MEMORY;
568
569 return SJA1105_CONFIG_OK;
570 }
571
572 sja1105_config_valid_t
sja1105_static_config_check_valid(const struct sja1105_static_config * config)573 sja1105_static_config_check_valid(const struct sja1105_static_config *config)
574 {
575 const struct sja1105_table *tables = config->tables;
576 #define IS_FULL(blk_idx) \
577 (tables[blk_idx].entry_count == tables[blk_idx].ops->max_entry_count)
578
579 if (tables[BLK_IDX_SCHEDULE].entry_count) {
580 if (config->device_id != SJA1105T_DEVICE_ID &&
581 config->device_id != SJA1105QS_DEVICE_ID)
582 return SJA1105_TTETHERNET_NOT_SUPPORTED;
583
584 if (tables[BLK_IDX_SCHEDULE_ENTRY_POINTS].entry_count == 0)
585 return SJA1105_INCORRECT_TTETHERNET_CONFIGURATION;
586
587 if (!IS_FULL(BLK_IDX_SCHEDULE_PARAMS))
588 return SJA1105_INCORRECT_TTETHERNET_CONFIGURATION;
589
590 if (!IS_FULL(BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS))
591 return SJA1105_INCORRECT_TTETHERNET_CONFIGURATION;
592 }
593
594 if (tables[BLK_IDX_L2_POLICING].entry_count == 0)
595 return SJA1105_MISSING_L2_POLICING_TABLE;
596
597 if (tables[BLK_IDX_VLAN_LOOKUP].entry_count == 0)
598 return SJA1105_MISSING_VLAN_TABLE;
599
600 if (!IS_FULL(BLK_IDX_L2_FORWARDING))
601 return SJA1105_MISSING_L2_FORWARDING_TABLE;
602
603 if (!IS_FULL(BLK_IDX_MAC_CONFIG))
604 return SJA1105_MISSING_MAC_TABLE;
605
606 if (!IS_FULL(BLK_IDX_L2_FORWARDING_PARAMS))
607 return SJA1105_MISSING_L2_FORWARDING_PARAMS_TABLE;
608
609 if (!IS_FULL(BLK_IDX_GENERAL_PARAMS))
610 return SJA1105_MISSING_GENERAL_PARAMS_TABLE;
611
612 if (!IS_FULL(BLK_IDX_XMII_PARAMS))
613 return SJA1105_MISSING_XMII_TABLE;
614
615 return static_config_check_memory_size(tables);
616 #undef IS_FULL
617 }
618
619 void
sja1105_static_config_pack(void * buf,struct sja1105_static_config * config)620 sja1105_static_config_pack(void *buf, struct sja1105_static_config *config)
621 {
622 struct sja1105_table_header header = {0};
623 enum sja1105_blk_idx i;
624 char *p = buf;
625 int j;
626
627 sja1105_pack(p, &config->device_id, 31, 0, 4);
628 p += SJA1105_SIZE_DEVICE_ID;
629
630 for (i = 0; i < BLK_IDX_MAX; i++) {
631 const struct sja1105_table *table;
632 char *table_start;
633
634 table = &config->tables[i];
635 if (!table->entry_count)
636 continue;
637
638 header.block_id = blk_id_map[i];
639 header.len = table->entry_count *
640 table->ops->packed_entry_size / 4;
641 sja1105_table_header_pack_with_crc(p, &header);
642 p += SJA1105_SIZE_TABLE_HEADER;
643 table_start = p;
644 for (j = 0; j < table->entry_count; j++) {
645 u8 *entry_ptr = table->entries;
646
647 entry_ptr += j * table->ops->unpacked_entry_size;
648 memset(p, 0, table->ops->packed_entry_size);
649 table->ops->packing(p, entry_ptr, PACK);
650 p += table->ops->packed_entry_size;
651 }
652 sja1105_table_write_crc(table_start, p);
653 p += 4;
654 }
655 /* Final header:
656 * Block ID does not matter
657 * Length of 0 marks that header is final
658 * CRC will be replaced on-the-fly on "config upload"
659 */
660 header.block_id = 0;
661 header.len = 0;
662 header.crc = 0xDEADBEEF;
663 memset(p, 0, SJA1105_SIZE_TABLE_HEADER);
664 sja1105_table_header_packing(p, &header, PACK);
665 }
666
667 size_t
sja1105_static_config_get_length(const struct sja1105_static_config * config)668 sja1105_static_config_get_length(const struct sja1105_static_config *config)
669 {
670 unsigned int sum;
671 unsigned int header_count;
672 enum sja1105_blk_idx i;
673
674 /* Ending header */
675 header_count = 1;
676 sum = SJA1105_SIZE_DEVICE_ID;
677
678 /* Tables (headers and entries) */
679 for (i = 0; i < BLK_IDX_MAX; i++) {
680 const struct sja1105_table *table;
681
682 table = &config->tables[i];
683 if (table->entry_count)
684 header_count++;
685
686 sum += table->ops->packed_entry_size * table->entry_count;
687 }
688 /* Headers have an additional CRC at the end */
689 sum += header_count * (SJA1105_SIZE_TABLE_HEADER + 4);
690 /* Last header does not have an extra CRC because there is no data */
691 sum -= 4;
692
693 return sum;
694 }
695
696 /* Compatibility matrices */
697
698 /* SJA1105E: First generation, no TTEthernet */
699 struct sja1105_table_ops sja1105e_table_ops[BLK_IDX_MAX] = {
700 [BLK_IDX_SCHEDULE] = {0},
701 [BLK_IDX_SCHEDULE_ENTRY_POINTS] = {0},
702 [BLK_IDX_L2_LOOKUP] = {
703 .packing = sja1105et_l2_lookup_entry_packing,
704 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
705 .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_ENTRY,
706 .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
707 },
708 [BLK_IDX_L2_POLICING] = {
709 .packing = sja1105_l2_policing_entry_packing,
710 .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
711 .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
712 .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
713 },
714 [BLK_IDX_VLAN_LOOKUP] = {
715 .packing = sja1105_vlan_lookup_entry_packing,
716 .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
717 .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
718 .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
719 },
720 [BLK_IDX_L2_FORWARDING] = {
721 .packing = sja1105_l2_forwarding_entry_packing,
722 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
723 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
724 .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
725 },
726 [BLK_IDX_MAC_CONFIG] = {
727 .packing = sja1105et_mac_config_entry_packing,
728 .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
729 .packed_entry_size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY,
730 .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
731 },
732 [BLK_IDX_SCHEDULE_PARAMS] = {0},
733 [BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {0},
734 [BLK_IDX_L2_LOOKUP_PARAMS] = {
735 .packing = sja1105et_l2_lookup_params_entry_packing,
736 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
737 .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_ENTRY,
738 .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
739 },
740 [BLK_IDX_L2_FORWARDING_PARAMS] = {
741 .packing = sja1105_l2_forwarding_params_entry_packing,
742 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
743 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
744 .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
745 },
746 [BLK_IDX_AVB_PARAMS] = {
747 .packing = sja1105et_avb_params_entry_packing,
748 .unpacked_entry_size = sizeof(struct sja1105_avb_params_entry),
749 .packed_entry_size = SJA1105ET_SIZE_AVB_PARAMS_ENTRY,
750 .max_entry_count = SJA1105_MAX_AVB_PARAMS_COUNT,
751 },
752 [BLK_IDX_GENERAL_PARAMS] = {
753 .packing = sja1105et_general_params_entry_packing,
754 .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
755 .packed_entry_size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY,
756 .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
757 },
758 [BLK_IDX_XMII_PARAMS] = {
759 .packing = sja1105_xmii_params_entry_packing,
760 .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
761 .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
762 .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
763 },
764 };
765
766 /* SJA1105T: First generation, TTEthernet */
767 struct sja1105_table_ops sja1105t_table_ops[BLK_IDX_MAX] = {
768 [BLK_IDX_SCHEDULE] = {
769 .packing = sja1105_schedule_entry_packing,
770 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry),
771 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY,
772 .max_entry_count = SJA1105_MAX_SCHEDULE_COUNT,
773 },
774 [BLK_IDX_SCHEDULE_ENTRY_POINTS] = {
775 .packing = sja1105_schedule_entry_points_entry_packing,
776 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_entry),
777 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY,
778 .max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_COUNT,
779 },
780 [BLK_IDX_L2_LOOKUP] = {
781 .packing = sja1105et_l2_lookup_entry_packing,
782 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
783 .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_ENTRY,
784 .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
785 },
786 [BLK_IDX_L2_POLICING] = {
787 .packing = sja1105_l2_policing_entry_packing,
788 .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
789 .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
790 .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
791 },
792 [BLK_IDX_VLAN_LOOKUP] = {
793 .packing = sja1105_vlan_lookup_entry_packing,
794 .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
795 .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
796 .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
797 },
798 [BLK_IDX_L2_FORWARDING] = {
799 .packing = sja1105_l2_forwarding_entry_packing,
800 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
801 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
802 .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
803 },
804 [BLK_IDX_MAC_CONFIG] = {
805 .packing = sja1105et_mac_config_entry_packing,
806 .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
807 .packed_entry_size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY,
808 .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
809 },
810 [BLK_IDX_SCHEDULE_PARAMS] = {
811 .packing = sja1105_schedule_params_entry_packing,
812 .unpacked_entry_size = sizeof(struct sja1105_schedule_params_entry),
813 .packed_entry_size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY,
814 .max_entry_count = SJA1105_MAX_SCHEDULE_PARAMS_COUNT,
815 },
816 [BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {
817 .packing = sja1105_schedule_entry_points_params_entry_packing,
818 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_params_entry),
819 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY,
820 .max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_PARAMS_COUNT,
821 },
822 [BLK_IDX_L2_LOOKUP_PARAMS] = {
823 .packing = sja1105et_l2_lookup_params_entry_packing,
824 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
825 .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_ENTRY,
826 .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
827 },
828 [BLK_IDX_L2_FORWARDING_PARAMS] = {
829 .packing = sja1105_l2_forwarding_params_entry_packing,
830 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
831 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
832 .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
833 },
834 [BLK_IDX_AVB_PARAMS] = {
835 .packing = sja1105et_avb_params_entry_packing,
836 .unpacked_entry_size = sizeof(struct sja1105_avb_params_entry),
837 .packed_entry_size = SJA1105ET_SIZE_AVB_PARAMS_ENTRY,
838 .max_entry_count = SJA1105_MAX_AVB_PARAMS_COUNT,
839 },
840 [BLK_IDX_GENERAL_PARAMS] = {
841 .packing = sja1105et_general_params_entry_packing,
842 .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
843 .packed_entry_size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY,
844 .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
845 },
846 [BLK_IDX_XMII_PARAMS] = {
847 .packing = sja1105_xmii_params_entry_packing,
848 .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
849 .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
850 .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
851 },
852 };
853
854 /* SJA1105P: Second generation, no TTEthernet, no SGMII */
855 struct sja1105_table_ops sja1105p_table_ops[BLK_IDX_MAX] = {
856 [BLK_IDX_SCHEDULE] = {0},
857 [BLK_IDX_SCHEDULE_ENTRY_POINTS] = {0},
858 [BLK_IDX_L2_LOOKUP] = {
859 .packing = sja1105pqrs_l2_lookup_entry_packing,
860 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
861 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
862 .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
863 },
864 [BLK_IDX_L2_POLICING] = {
865 .packing = sja1105_l2_policing_entry_packing,
866 .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
867 .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
868 .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
869 },
870 [BLK_IDX_VLAN_LOOKUP] = {
871 .packing = sja1105_vlan_lookup_entry_packing,
872 .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
873 .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
874 .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
875 },
876 [BLK_IDX_L2_FORWARDING] = {
877 .packing = sja1105_l2_forwarding_entry_packing,
878 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
879 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
880 .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
881 },
882 [BLK_IDX_MAC_CONFIG] = {
883 .packing = sja1105pqrs_mac_config_entry_packing,
884 .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
885 .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
886 .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
887 },
888 [BLK_IDX_SCHEDULE_PARAMS] = {0},
889 [BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {0},
890 [BLK_IDX_L2_LOOKUP_PARAMS] = {
891 .packing = sja1105pqrs_l2_lookup_params_entry_packing,
892 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
893 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
894 .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
895 },
896 [BLK_IDX_L2_FORWARDING_PARAMS] = {
897 .packing = sja1105_l2_forwarding_params_entry_packing,
898 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
899 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
900 .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
901 },
902 [BLK_IDX_AVB_PARAMS] = {
903 .packing = sja1105pqrs_avb_params_entry_packing,
904 .unpacked_entry_size = sizeof(struct sja1105_avb_params_entry),
905 .packed_entry_size = SJA1105PQRS_SIZE_AVB_PARAMS_ENTRY,
906 .max_entry_count = SJA1105_MAX_AVB_PARAMS_COUNT,
907 },
908 [BLK_IDX_GENERAL_PARAMS] = {
909 .packing = sja1105pqrs_general_params_entry_packing,
910 .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
911 .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
912 .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
913 },
914 [BLK_IDX_XMII_PARAMS] = {
915 .packing = sja1105_xmii_params_entry_packing,
916 .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
917 .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
918 .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
919 },
920 };
921
922 /* SJA1105Q: Second generation, TTEthernet, no SGMII */
923 struct sja1105_table_ops sja1105q_table_ops[BLK_IDX_MAX] = {
924 [BLK_IDX_SCHEDULE] = {
925 .packing = sja1105_schedule_entry_packing,
926 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry),
927 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY,
928 .max_entry_count = SJA1105_MAX_SCHEDULE_COUNT,
929 },
930 [BLK_IDX_SCHEDULE_ENTRY_POINTS] = {
931 .packing = sja1105_schedule_entry_points_entry_packing,
932 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_entry),
933 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY,
934 .max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_COUNT,
935 },
936 [BLK_IDX_L2_LOOKUP] = {
937 .packing = sja1105pqrs_l2_lookup_entry_packing,
938 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
939 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
940 .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
941 },
942 [BLK_IDX_L2_POLICING] = {
943 .packing = sja1105_l2_policing_entry_packing,
944 .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
945 .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
946 .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
947 },
948 [BLK_IDX_VLAN_LOOKUP] = {
949 .packing = sja1105_vlan_lookup_entry_packing,
950 .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
951 .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
952 .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
953 },
954 [BLK_IDX_L2_FORWARDING] = {
955 .packing = sja1105_l2_forwarding_entry_packing,
956 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
957 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
958 .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
959 },
960 [BLK_IDX_MAC_CONFIG] = {
961 .packing = sja1105pqrs_mac_config_entry_packing,
962 .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
963 .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
964 .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
965 },
966 [BLK_IDX_SCHEDULE_PARAMS] = {
967 .packing = sja1105_schedule_params_entry_packing,
968 .unpacked_entry_size = sizeof(struct sja1105_schedule_params_entry),
969 .packed_entry_size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY,
970 .max_entry_count = SJA1105_MAX_SCHEDULE_PARAMS_COUNT,
971 },
972 [BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {
973 .packing = sja1105_schedule_entry_points_params_entry_packing,
974 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_params_entry),
975 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY,
976 .max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_PARAMS_COUNT,
977 },
978 [BLK_IDX_L2_LOOKUP_PARAMS] = {
979 .packing = sja1105pqrs_l2_lookup_params_entry_packing,
980 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
981 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
982 .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
983 },
984 [BLK_IDX_L2_FORWARDING_PARAMS] = {
985 .packing = sja1105_l2_forwarding_params_entry_packing,
986 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
987 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
988 .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
989 },
990 [BLK_IDX_AVB_PARAMS] = {
991 .packing = sja1105pqrs_avb_params_entry_packing,
992 .unpacked_entry_size = sizeof(struct sja1105_avb_params_entry),
993 .packed_entry_size = SJA1105PQRS_SIZE_AVB_PARAMS_ENTRY,
994 .max_entry_count = SJA1105_MAX_AVB_PARAMS_COUNT,
995 },
996 [BLK_IDX_GENERAL_PARAMS] = {
997 .packing = sja1105pqrs_general_params_entry_packing,
998 .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
999 .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
1000 .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
1001 },
1002 [BLK_IDX_XMII_PARAMS] = {
1003 .packing = sja1105_xmii_params_entry_packing,
1004 .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
1005 .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
1006 .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
1007 },
1008 };
1009
1010 /* SJA1105R: Second generation, no TTEthernet, SGMII */
1011 struct sja1105_table_ops sja1105r_table_ops[BLK_IDX_MAX] = {
1012 [BLK_IDX_SCHEDULE] = {0},
1013 [BLK_IDX_SCHEDULE_ENTRY_POINTS] = {0},
1014 [BLK_IDX_L2_LOOKUP] = {
1015 .packing = sja1105pqrs_l2_lookup_entry_packing,
1016 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
1017 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
1018 .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
1019 },
1020 [BLK_IDX_L2_POLICING] = {
1021 .packing = sja1105_l2_policing_entry_packing,
1022 .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
1023 .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
1024 .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
1025 },
1026 [BLK_IDX_VLAN_LOOKUP] = {
1027 .packing = sja1105_vlan_lookup_entry_packing,
1028 .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
1029 .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
1030 .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
1031 },
1032 [BLK_IDX_L2_FORWARDING] = {
1033 .packing = sja1105_l2_forwarding_entry_packing,
1034 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
1035 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
1036 .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
1037 },
1038 [BLK_IDX_MAC_CONFIG] = {
1039 .packing = sja1105pqrs_mac_config_entry_packing,
1040 .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
1041 .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
1042 .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
1043 },
1044 [BLK_IDX_SCHEDULE_PARAMS] = {0},
1045 [BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {0},
1046 [BLK_IDX_L2_LOOKUP_PARAMS] = {
1047 .packing = sja1105pqrs_l2_lookup_params_entry_packing,
1048 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
1049 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
1050 .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
1051 },
1052 [BLK_IDX_L2_FORWARDING_PARAMS] = {
1053 .packing = sja1105_l2_forwarding_params_entry_packing,
1054 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
1055 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
1056 .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
1057 },
1058 [BLK_IDX_AVB_PARAMS] = {
1059 .packing = sja1105pqrs_avb_params_entry_packing,
1060 .unpacked_entry_size = sizeof(struct sja1105_avb_params_entry),
1061 .packed_entry_size = SJA1105PQRS_SIZE_AVB_PARAMS_ENTRY,
1062 .max_entry_count = SJA1105_MAX_AVB_PARAMS_COUNT,
1063 },
1064 [BLK_IDX_GENERAL_PARAMS] = {
1065 .packing = sja1105pqrs_general_params_entry_packing,
1066 .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
1067 .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
1068 .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
1069 },
1070 [BLK_IDX_XMII_PARAMS] = {
1071 .packing = sja1105_xmii_params_entry_packing,
1072 .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
1073 .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
1074 .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
1075 },
1076 };
1077
1078 /* SJA1105S: Second generation, TTEthernet, SGMII */
1079 struct sja1105_table_ops sja1105s_table_ops[BLK_IDX_MAX] = {
1080 [BLK_IDX_SCHEDULE] = {
1081 .packing = sja1105_schedule_entry_packing,
1082 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry),
1083 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY,
1084 .max_entry_count = SJA1105_MAX_SCHEDULE_COUNT,
1085 },
1086 [BLK_IDX_SCHEDULE_ENTRY_POINTS] = {
1087 .packing = sja1105_schedule_entry_points_entry_packing,
1088 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_entry),
1089 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY,
1090 .max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_COUNT,
1091 },
1092 [BLK_IDX_L2_LOOKUP] = {
1093 .packing = sja1105pqrs_l2_lookup_entry_packing,
1094 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
1095 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
1096 .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
1097 },
1098 [BLK_IDX_L2_POLICING] = {
1099 .packing = sja1105_l2_policing_entry_packing,
1100 .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
1101 .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
1102 .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
1103 },
1104 [BLK_IDX_VLAN_LOOKUP] = {
1105 .packing = sja1105_vlan_lookup_entry_packing,
1106 .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
1107 .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
1108 .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
1109 },
1110 [BLK_IDX_L2_FORWARDING] = {
1111 .packing = sja1105_l2_forwarding_entry_packing,
1112 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
1113 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
1114 .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
1115 },
1116 [BLK_IDX_MAC_CONFIG] = {
1117 .packing = sja1105pqrs_mac_config_entry_packing,
1118 .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
1119 .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
1120 .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
1121 },
1122 [BLK_IDX_SCHEDULE_PARAMS] = {
1123 .packing = sja1105_schedule_params_entry_packing,
1124 .unpacked_entry_size = sizeof(struct sja1105_schedule_params_entry),
1125 .packed_entry_size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY,
1126 .max_entry_count = SJA1105_MAX_SCHEDULE_PARAMS_COUNT,
1127 },
1128 [BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {
1129 .packing = sja1105_schedule_entry_points_params_entry_packing,
1130 .unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_params_entry),
1131 .packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY,
1132 .max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_PARAMS_COUNT,
1133 },
1134 [BLK_IDX_L2_LOOKUP_PARAMS] = {
1135 .packing = sja1105pqrs_l2_lookup_params_entry_packing,
1136 .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
1137 .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
1138 .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
1139 },
1140 [BLK_IDX_L2_FORWARDING_PARAMS] = {
1141 .packing = sja1105_l2_forwarding_params_entry_packing,
1142 .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
1143 .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
1144 .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
1145 },
1146 [BLK_IDX_AVB_PARAMS] = {
1147 .packing = sja1105pqrs_avb_params_entry_packing,
1148 .unpacked_entry_size = sizeof(struct sja1105_avb_params_entry),
1149 .packed_entry_size = SJA1105PQRS_SIZE_AVB_PARAMS_ENTRY,
1150 .max_entry_count = SJA1105_MAX_AVB_PARAMS_COUNT,
1151 },
1152 [BLK_IDX_GENERAL_PARAMS] = {
1153 .packing = sja1105pqrs_general_params_entry_packing,
1154 .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
1155 .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
1156 .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
1157 },
1158 [BLK_IDX_XMII_PARAMS] = {
1159 .packing = sja1105_xmii_params_entry_packing,
1160 .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
1161 .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
1162 .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
1163 },
1164 };
1165
sja1105_static_config_init(struct sja1105_static_config * config,const struct sja1105_table_ops * static_ops,u64 device_id)1166 int sja1105_static_config_init(struct sja1105_static_config *config,
1167 const struct sja1105_table_ops *static_ops,
1168 u64 device_id)
1169 {
1170 enum sja1105_blk_idx i;
1171
1172 *config = (struct sja1105_static_config) {0};
1173
1174 /* Transfer static_ops array from priv into per-table ops
1175 * for handier access
1176 */
1177 for (i = 0; i < BLK_IDX_MAX; i++)
1178 config->tables[i].ops = &static_ops[i];
1179
1180 config->device_id = device_id;
1181 return 0;
1182 }
1183
sja1105_static_config_free(struct sja1105_static_config * config)1184 void sja1105_static_config_free(struct sja1105_static_config *config)
1185 {
1186 enum sja1105_blk_idx i;
1187
1188 for (i = 0; i < BLK_IDX_MAX; i++) {
1189 if (config->tables[i].entry_count) {
1190 kfree(config->tables[i].entries);
1191 config->tables[i].entry_count = 0;
1192 }
1193 }
1194 }
1195
sja1105_table_delete_entry(struct sja1105_table * table,int i)1196 int sja1105_table_delete_entry(struct sja1105_table *table, int i)
1197 {
1198 size_t entry_size = table->ops->unpacked_entry_size;
1199 u8 *entries = table->entries;
1200
1201 if (i > table->entry_count)
1202 return -ERANGE;
1203
1204 memmove(entries + i * entry_size, entries + (i + 1) * entry_size,
1205 (table->entry_count - i) * entry_size);
1206
1207 table->entry_count--;
1208
1209 return 0;
1210 }
1211
1212 /* No pointers to table->entries should be kept when this is called. */
sja1105_table_resize(struct sja1105_table * table,size_t new_count)1213 int sja1105_table_resize(struct sja1105_table *table, size_t new_count)
1214 {
1215 size_t entry_size = table->ops->unpacked_entry_size;
1216 void *new_entries, *old_entries = table->entries;
1217
1218 if (new_count > table->ops->max_entry_count)
1219 return -ERANGE;
1220
1221 new_entries = kcalloc(new_count, entry_size, GFP_KERNEL);
1222 if (!new_entries)
1223 return -ENOMEM;
1224
1225 memcpy(new_entries, old_entries, min(new_count, table->entry_count) *
1226 entry_size);
1227
1228 table->entries = new_entries;
1229 table->entry_count = new_count;
1230 kfree(old_entries);
1231 return 0;
1232 }
1233
