1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Netronome Systems, Inc.
3 * All rights reserved.
4 */
5
6 #ifndef NFP_TARGET_H
7 #define NFP_TARGET_H
8
9 #include "nfp-common/nfp_resid.h"
10 #include "nfp-common/nfp_cppat.h"
11 #include "nfp-common/nfp_platform.h"
12 #include "nfp_cpp.h"
13
14 #define P32 1
15 #define P64 2
16
17 #define PUSHPULL(_pull, _push) (((_pull) << 4) | ((_push) << 0))
18
19 #ifndef NFP_ERRNO
20 #include <errno.h>
21 #define NFP_ERRNO(x) (errno = (x), -1)
22 #endif
23
24 static inline int
pushpull_width(int pp)25 pushpull_width(int pp)
26 {
27 pp &= 0xf;
28
29 if (pp == 0)
30 return NFP_ERRNO(EINVAL);
31 return (2 << pp);
32 }
33
34 #define PUSH_WIDTH(_pushpull) pushpull_width((_pushpull) >> 0)
35 #define PULL_WIDTH(_pushpull) pushpull_width((_pushpull) >> 4)
36
37 static inline int
target_rw(uint32_t cpp_id,int pp,int start,int len)38 target_rw(uint32_t cpp_id, int pp, int start, int len)
39 {
40 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
41
42 if (island && (island < start || island > (start + len)))
43 return NFP_ERRNO(EINVAL);
44
45 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
46 case NFP_CPP_ID(0, 0, 0):
47 return PUSHPULL(0, pp);
48 case NFP_CPP_ID(0, 1, 0):
49 return PUSHPULL(pp, 0);
50 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 0):
51 return PUSHPULL(pp, pp);
52 default:
53 return NFP_ERRNO(EINVAL);
54 }
55 }
56
57 static inline int
nfp6000_nbi_dma(uint32_t cpp_id)58 nfp6000_nbi_dma(uint32_t cpp_id)
59 {
60 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
61 case NFP_CPP_ID(0, 0, 0): /* ReadNbiDma */
62 return PUSHPULL(0, P64);
63 case NFP_CPP_ID(0, 1, 0): /* WriteNbiDma */
64 return PUSHPULL(P64, 0);
65 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 0):
66 return PUSHPULL(P64, P64);
67 default:
68 return NFP_ERRNO(EINVAL);
69 }
70 }
71
72 static inline int
nfp6000_nbi_stats(uint32_t cpp_id)73 nfp6000_nbi_stats(uint32_t cpp_id)
74 {
75 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
76 case NFP_CPP_ID(0, 0, 0): /* ReadNbiStats */
77 return PUSHPULL(0, P64);
78 case NFP_CPP_ID(0, 1, 0): /* WriteNbiStats */
79 return PUSHPULL(P64, 0);
80 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 0):
81 return PUSHPULL(P64, P64);
82 default:
83 return NFP_ERRNO(EINVAL);
84 }
85 }
86
87 static inline int
nfp6000_nbi_tm(uint32_t cpp_id)88 nfp6000_nbi_tm(uint32_t cpp_id)
89 {
90 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
91 case NFP_CPP_ID(0, 0, 0): /* ReadNbiTM */
92 return PUSHPULL(0, P64);
93 case NFP_CPP_ID(0, 1, 0): /* WriteNbiTM */
94 return PUSHPULL(P64, 0);
95 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 0):
96 return PUSHPULL(P64, P64);
97 default:
98 return NFP_ERRNO(EINVAL);
99 }
100 }
101
102 static inline int
nfp6000_nbi_ppc(uint32_t cpp_id)103 nfp6000_nbi_ppc(uint32_t cpp_id)
104 {
105 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
106 case NFP_CPP_ID(0, 0, 0): /* ReadNbiPreclassifier */
107 return PUSHPULL(0, P64);
108 case NFP_CPP_ID(0, 1, 0): /* WriteNbiPreclassifier */
109 return PUSHPULL(P64, 0);
110 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 0):
111 return PUSHPULL(P64, P64);
112 default:
113 return NFP_ERRNO(EINVAL);
114 }
115 }
116
117 static inline int
nfp6000_nbi(uint32_t cpp_id,uint64_t address)118 nfp6000_nbi(uint32_t cpp_id, uint64_t address)
119 {
120 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
121 uint64_t rel_addr = address & 0x3fFFFF;
122
123 if (island && (island < 8 || island > 9))
124 return NFP_ERRNO(EINVAL);
125
126 if (rel_addr < (1 << 20))
127 return nfp6000_nbi_dma(cpp_id);
128 if (rel_addr < (2 << 20))
129 return nfp6000_nbi_stats(cpp_id);
130 if (rel_addr < (3 << 20))
131 return nfp6000_nbi_tm(cpp_id);
132 return nfp6000_nbi_ppc(cpp_id);
133 }
134
135 /*
136 * This structure ONLY includes items that can be done with a read or write of
137 * 32-bit or 64-bit words. All others are not listed.
138 */
139 static inline int
nfp6000_mu_common(uint32_t cpp_id)140 nfp6000_mu_common(uint32_t cpp_id)
141 {
142 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
143 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 0): /* read_be/write_be */
144 return PUSHPULL(P64, P64);
145 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 1): /* read_le/write_le */
146 return PUSHPULL(P64, P64);
147 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 2): /* {read/write}_swap_be */
148 return PUSHPULL(P64, P64);
149 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 3): /* {read/write}_swap_le */
150 return PUSHPULL(P64, P64);
151 case NFP_CPP_ID(0, 0, 0): /* read_be */
152 return PUSHPULL(0, P64);
153 case NFP_CPP_ID(0, 0, 1): /* read_le */
154 return PUSHPULL(0, P64);
155 case NFP_CPP_ID(0, 0, 2): /* read_swap_be */
156 return PUSHPULL(0, P64);
157 case NFP_CPP_ID(0, 0, 3): /* read_swap_le */
158 return PUSHPULL(0, P64);
159 case NFP_CPP_ID(0, 1, 0): /* write_be */
160 return PUSHPULL(P64, 0);
161 case NFP_CPP_ID(0, 1, 1): /* write_le */
162 return PUSHPULL(P64, 0);
163 case NFP_CPP_ID(0, 1, 2): /* write_swap_be */
164 return PUSHPULL(P64, 0);
165 case NFP_CPP_ID(0, 1, 3): /* write_swap_le */
166 return PUSHPULL(P64, 0);
167 case NFP_CPP_ID(0, 3, 0): /* atomic_read */
168 return PUSHPULL(0, P32);
169 case NFP_CPP_ID(0, 3, 2): /* mask_compare_write */
170 return PUSHPULL(P32, 0);
171 case NFP_CPP_ID(0, 4, 0): /* atomic_write */
172 return PUSHPULL(P32, 0);
173 case NFP_CPP_ID(0, 4, 2): /* atomic_write_imm */
174 return PUSHPULL(0, 0);
175 case NFP_CPP_ID(0, 4, 3): /* swap_imm */
176 return PUSHPULL(0, P32);
177 case NFP_CPP_ID(0, 5, 0): /* set */
178 return PUSHPULL(P32, 0);
179 case NFP_CPP_ID(0, 5, 3): /* test_set_imm */
180 return PUSHPULL(0, P32);
181 case NFP_CPP_ID(0, 6, 0): /* clr */
182 return PUSHPULL(P32, 0);
183 case NFP_CPP_ID(0, 6, 3): /* test_clr_imm */
184 return PUSHPULL(0, P32);
185 case NFP_CPP_ID(0, 7, 0): /* add */
186 return PUSHPULL(P32, 0);
187 case NFP_CPP_ID(0, 7, 3): /* test_add_imm */
188 return PUSHPULL(0, P32);
189 case NFP_CPP_ID(0, 8, 0): /* addsat */
190 return PUSHPULL(P32, 0);
191 case NFP_CPP_ID(0, 8, 3): /* test_subsat_imm */
192 return PUSHPULL(0, P32);
193 case NFP_CPP_ID(0, 9, 0): /* sub */
194 return PUSHPULL(P32, 0);
195 case NFP_CPP_ID(0, 9, 3): /* test_sub_imm */
196 return PUSHPULL(0, P32);
197 case NFP_CPP_ID(0, 10, 0): /* subsat */
198 return PUSHPULL(P32, 0);
199 case NFP_CPP_ID(0, 10, 3): /* test_subsat_imm */
200 return PUSHPULL(0, P32);
201 case NFP_CPP_ID(0, 13, 0): /* microq128_get */
202 return PUSHPULL(0, P32);
203 case NFP_CPP_ID(0, 13, 1): /* microq128_pop */
204 return PUSHPULL(0, P32);
205 case NFP_CPP_ID(0, 13, 2): /* microq128_put */
206 return PUSHPULL(P32, 0);
207 case NFP_CPP_ID(0, 15, 0): /* xor */
208 return PUSHPULL(P32, 0);
209 case NFP_CPP_ID(0, 15, 3): /* test_xor_imm */
210 return PUSHPULL(0, P32);
211 case NFP_CPP_ID(0, 28, 0): /* read32_be */
212 return PUSHPULL(0, P32);
213 case NFP_CPP_ID(0, 28, 1): /* read32_le */
214 return PUSHPULL(0, P32);
215 case NFP_CPP_ID(0, 28, 2): /* read32_swap_be */
216 return PUSHPULL(0, P32);
217 case NFP_CPP_ID(0, 28, 3): /* read32_swap_le */
218 return PUSHPULL(0, P32);
219 case NFP_CPP_ID(0, 31, 0): /* write32_be */
220 return PUSHPULL(P32, 0);
221 case NFP_CPP_ID(0, 31, 1): /* write32_le */
222 return PUSHPULL(P32, 0);
223 case NFP_CPP_ID(0, 31, 2): /* write32_swap_be */
224 return PUSHPULL(P32, 0);
225 case NFP_CPP_ID(0, 31, 3): /* write32_swap_le */
226 return PUSHPULL(P32, 0);
227 default:
228 return NFP_ERRNO(EINVAL);
229 }
230 }
231
232 static inline int
nfp6000_mu_ctm(uint32_t cpp_id)233 nfp6000_mu_ctm(uint32_t cpp_id)
234 {
235 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
236 case NFP_CPP_ID(0, 16, 1): /* packet_read_packet_status */
237 return PUSHPULL(0, P32);
238 default:
239 return nfp6000_mu_common(cpp_id);
240 }
241 }
242
243 static inline int
nfp6000_mu_emu(uint32_t cpp_id)244 nfp6000_mu_emu(uint32_t cpp_id)
245 {
246 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
247 case NFP_CPP_ID(0, 18, 0): /* read_queue */
248 return PUSHPULL(0, P32);
249 case NFP_CPP_ID(0, 18, 1): /* read_queue_ring */
250 return PUSHPULL(0, P32);
251 case NFP_CPP_ID(0, 18, 2): /* write_queue */
252 return PUSHPULL(P32, 0);
253 case NFP_CPP_ID(0, 18, 3): /* write_queue_ring */
254 return PUSHPULL(P32, 0);
255 case NFP_CPP_ID(0, 20, 2): /* journal */
256 return PUSHPULL(P32, 0);
257 case NFP_CPP_ID(0, 21, 0): /* get */
258 return PUSHPULL(0, P32);
259 case NFP_CPP_ID(0, 21, 1): /* get_eop */
260 return PUSHPULL(0, P32);
261 case NFP_CPP_ID(0, 21, 2): /* get_freely */
262 return PUSHPULL(0, P32);
263 case NFP_CPP_ID(0, 22, 0): /* pop */
264 return PUSHPULL(0, P32);
265 case NFP_CPP_ID(0, 22, 1): /* pop_eop */
266 return PUSHPULL(0, P32);
267 case NFP_CPP_ID(0, 22, 2): /* pop_freely */
268 return PUSHPULL(0, P32);
269 default:
270 return nfp6000_mu_common(cpp_id);
271 }
272 }
273
274 static inline int
nfp6000_mu_imu(uint32_t cpp_id)275 nfp6000_mu_imu(uint32_t cpp_id)
276 {
277 return nfp6000_mu_common(cpp_id);
278 }
279
280 static inline int
nfp6000_mu(uint32_t cpp_id,uint64_t address)281 nfp6000_mu(uint32_t cpp_id, uint64_t address)
282 {
283 int pp;
284 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
285
286 if (island == 0) {
287 if (address < 0x2000000000ULL)
288 pp = nfp6000_mu_ctm(cpp_id);
289 else if (address < 0x8000000000ULL)
290 pp = nfp6000_mu_emu(cpp_id);
291 else if (address < 0x9800000000ULL)
292 pp = nfp6000_mu_ctm(cpp_id);
293 else if (address < 0x9C00000000ULL)
294 pp = nfp6000_mu_emu(cpp_id);
295 else if (address < 0xA000000000ULL)
296 pp = nfp6000_mu_imu(cpp_id);
297 else
298 pp = nfp6000_mu_ctm(cpp_id);
299 } else if (island >= 24 && island <= 27) {
300 pp = nfp6000_mu_emu(cpp_id);
301 } else if (island >= 28 && island <= 31) {
302 pp = nfp6000_mu_imu(cpp_id);
303 } else if (island == 1 ||
304 (island >= 4 && island <= 7) ||
305 (island >= 12 && island <= 13) ||
306 (island >= 32 && island <= 47) ||
307 (island >= 48 && island <= 51)) {
308 pp = nfp6000_mu_ctm(cpp_id);
309 } else {
310 pp = NFP_ERRNO(EINVAL);
311 }
312
313 return pp;
314 }
315
316 static inline int
nfp6000_ila(uint32_t cpp_id)317 nfp6000_ila(uint32_t cpp_id)
318 {
319 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
320
321 if (island && (island < 48 || island > 51))
322 return NFP_ERRNO(EINVAL);
323
324 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
325 case NFP_CPP_ID(0, 0, 1): /* read_check_error */
326 return PUSHPULL(0, P32);
327 case NFP_CPP_ID(0, 2, 0): /* read_int */
328 return PUSHPULL(0, P32);
329 case NFP_CPP_ID(0, 3, 0): /* write_int */
330 return PUSHPULL(P32, 0);
331 default:
332 return target_rw(cpp_id, P32, 48, 4);
333 }
334 }
335
336 static inline int
nfp6000_pci(uint32_t cpp_id)337 nfp6000_pci(uint32_t cpp_id)
338 {
339 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
340
341 if (island && (island < 4 || island > 7))
342 return NFP_ERRNO(EINVAL);
343
344 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
345 case NFP_CPP_ID(0, 2, 0):
346 return PUSHPULL(0, P32);
347 case NFP_CPP_ID(0, 3, 0):
348 return PUSHPULL(P32, 0);
349 default:
350 return target_rw(cpp_id, P32, 4, 4);
351 }
352 }
353
354 static inline int
nfp6000_crypto(uint32_t cpp_id)355 nfp6000_crypto(uint32_t cpp_id)
356 {
357 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
358
359 if (island && (island < 12 || island > 15))
360 return NFP_ERRNO(EINVAL);
361
362 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
363 case NFP_CPP_ID(0, 2, 0):
364 return PUSHPULL(P64, 0);
365 default:
366 return target_rw(cpp_id, P64, 12, 4);
367 }
368 }
369
370 static inline int
nfp6000_cap_xpb(uint32_t cpp_id)371 nfp6000_cap_xpb(uint32_t cpp_id)
372 {
373 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
374
375 if (island && (island < 1 || island > 63))
376 return NFP_ERRNO(EINVAL);
377
378 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
379 case NFP_CPP_ID(0, 0, 1): /* RingGet */
380 return PUSHPULL(0, P32);
381 case NFP_CPP_ID(0, 0, 2): /* Interthread Signal */
382 return PUSHPULL(P32, 0);
383 case NFP_CPP_ID(0, 1, 1): /* RingPut */
384 return PUSHPULL(P32, 0);
385 case NFP_CPP_ID(0, 1, 2): /* CTNNWr */
386 return PUSHPULL(P32, 0);
387 case NFP_CPP_ID(0, 2, 0): /* ReflectRd, signal none */
388 return PUSHPULL(0, P32);
389 case NFP_CPP_ID(0, 2, 1): /* ReflectRd, signal self */
390 return PUSHPULL(0, P32);
391 case NFP_CPP_ID(0, 2, 2): /* ReflectRd, signal remote */
392 return PUSHPULL(0, P32);
393 case NFP_CPP_ID(0, 2, 3): /* ReflectRd, signal both */
394 return PUSHPULL(0, P32);
395 case NFP_CPP_ID(0, 3, 0): /* ReflectWr, signal none */
396 return PUSHPULL(P32, 0);
397 case NFP_CPP_ID(0, 3, 1): /* ReflectWr, signal self */
398 return PUSHPULL(P32, 0);
399 case NFP_CPP_ID(0, 3, 2): /* ReflectWr, signal remote */
400 return PUSHPULL(P32, 0);
401 case NFP_CPP_ID(0, 3, 3): /* ReflectWr, signal both */
402 return PUSHPULL(P32, 0);
403 case NFP_CPP_ID(0, NFP_CPP_ACTION_RW, 1):
404 return PUSHPULL(P32, P32);
405 default:
406 return target_rw(cpp_id, P32, 1, 63);
407 }
408 }
409
410 static inline int
nfp6000_cls(uint32_t cpp_id)411 nfp6000_cls(uint32_t cpp_id)
412 {
413 int island = NFP_CPP_ID_ISLAND_of(cpp_id);
414
415 if (island && (island < 1 || island > 63))
416 return NFP_ERRNO(EINVAL);
417
418 switch (cpp_id & NFP_CPP_ID(0, ~0, ~0)) {
419 case NFP_CPP_ID(0, 0, 3): /* xor */
420 return PUSHPULL(P32, 0);
421 case NFP_CPP_ID(0, 2, 0): /* set */
422 return PUSHPULL(P32, 0);
423 case NFP_CPP_ID(0, 2, 1): /* clr */
424 return PUSHPULL(P32, 0);
425 case NFP_CPP_ID(0, 4, 0): /* add */
426 return PUSHPULL(P32, 0);
427 case NFP_CPP_ID(0, 4, 1): /* add64 */
428 return PUSHPULL(P32, 0);
429 case NFP_CPP_ID(0, 6, 0): /* sub */
430 return PUSHPULL(P32, 0);
431 case NFP_CPP_ID(0, 6, 1): /* sub64 */
432 return PUSHPULL(P32, 0);
433 case NFP_CPP_ID(0, 6, 2): /* subsat */
434 return PUSHPULL(P32, 0);
435 case NFP_CPP_ID(0, 8, 2): /* hash_mask */
436 return PUSHPULL(P32, 0);
437 case NFP_CPP_ID(0, 8, 3): /* hash_clear */
438 return PUSHPULL(P32, 0);
439 case NFP_CPP_ID(0, 9, 0): /* ring_get */
440 return PUSHPULL(0, P32);
441 case NFP_CPP_ID(0, 9, 1): /* ring_pop */
442 return PUSHPULL(0, P32);
443 case NFP_CPP_ID(0, 9, 2): /* ring_get_freely */
444 return PUSHPULL(0, P32);
445 case NFP_CPP_ID(0, 9, 3): /* ring_pop_freely */
446 return PUSHPULL(0, P32);
447 case NFP_CPP_ID(0, 10, 0): /* ring_put */
448 return PUSHPULL(P32, 0);
449 case NFP_CPP_ID(0, 10, 2): /* ring_journal */
450 return PUSHPULL(P32, 0);
451 case NFP_CPP_ID(0, 14, 0): /* reflect_write_sig_local */
452 return PUSHPULL(P32, 0);
453 case NFP_CPP_ID(0, 15, 1): /* reflect_read_sig_local */
454 return PUSHPULL(0, P32);
455 case NFP_CPP_ID(0, 17, 2): /* statistic */
456 return PUSHPULL(P32, 0);
457 case NFP_CPP_ID(0, 24, 0): /* ring_read */
458 return PUSHPULL(0, P32);
459 case NFP_CPP_ID(0, 24, 1): /* ring_write */
460 return PUSHPULL(P32, 0);
461 case NFP_CPP_ID(0, 25, 0): /* ring_workq_add_thread */
462 return PUSHPULL(0, P32);
463 case NFP_CPP_ID(0, 25, 1): /* ring_workq_add_work */
464 return PUSHPULL(P32, 0);
465 default:
466 return target_rw(cpp_id, P32, 0, 64);
467 }
468 }
469
470 static inline int
nfp6000_target_pushpull(uint32_t cpp_id,uint64_t address)471 nfp6000_target_pushpull(uint32_t cpp_id, uint64_t address)
472 {
473 switch (NFP_CPP_ID_TARGET_of(cpp_id)) {
474 case NFP6000_CPPTGT_NBI:
475 return nfp6000_nbi(cpp_id, address);
476 case NFP6000_CPPTGT_VQDR:
477 return target_rw(cpp_id, P32, 24, 4);
478 case NFP6000_CPPTGT_ILA:
479 return nfp6000_ila(cpp_id);
480 case NFP6000_CPPTGT_MU:
481 return nfp6000_mu(cpp_id, address);
482 case NFP6000_CPPTGT_PCIE:
483 return nfp6000_pci(cpp_id);
484 case NFP6000_CPPTGT_ARM:
485 if (address < 0x10000)
486 return target_rw(cpp_id, P64, 1, 1);
487 else
488 return target_rw(cpp_id, P32, 1, 1);
489 case NFP6000_CPPTGT_CRYPTO:
490 return nfp6000_crypto(cpp_id);
491 case NFP6000_CPPTGT_CTXPB:
492 return nfp6000_cap_xpb(cpp_id);
493 case NFP6000_CPPTGT_CLS:
494 return nfp6000_cls(cpp_id);
495 case 0:
496 return target_rw(cpp_id, P32, 4, 4);
497 default:
498 return NFP_ERRNO(EINVAL);
499 }
500 }
501
502 static inline int
nfp_target_pushpull_width(int pp,int write_not_read)503 nfp_target_pushpull_width(int pp, int write_not_read)
504 {
505 if (pp < 0)
506 return pp;
507
508 if (write_not_read)
509 return PULL_WIDTH(pp);
510 else
511 return PUSH_WIDTH(pp);
512 }
513
514 static inline int
nfp6000_target_action_width(uint32_t cpp_id,uint64_t address,int write_not_read)515 nfp6000_target_action_width(uint32_t cpp_id, uint64_t address,
516 int write_not_read)
517 {
518 int pp;
519
520 pp = nfp6000_target_pushpull(cpp_id, address);
521
522 return nfp_target_pushpull_width(pp, write_not_read);
523 }
524
525 static inline int
nfp_target_action_width(uint32_t model,uint32_t cpp_id,uint64_t address,int write_not_read)526 nfp_target_action_width(uint32_t model, uint32_t cpp_id, uint64_t address,
527 int write_not_read)
528 {
529 if (NFP_CPP_MODEL_IS_6000(model)) {
530 return nfp6000_target_action_width(cpp_id, address,
531 write_not_read);
532 } else {
533 return NFP_ERRNO(EINVAL);
534 }
535 }
536
537 static inline int
nfp_target_cpp(uint32_t cpp_island_id,uint64_t cpp_island_address,uint32_t * cpp_target_id,uint64_t * cpp_target_address,const uint32_t * imb_table)538 nfp_target_cpp(uint32_t cpp_island_id, uint64_t cpp_island_address,
539 uint32_t *cpp_target_id, uint64_t *cpp_target_address,
540 const uint32_t *imb_table)
541 {
542 int err;
543 int island = NFP_CPP_ID_ISLAND_of(cpp_island_id);
544 int target = NFP_CPP_ID_TARGET_of(cpp_island_id);
545 uint32_t imb;
546
547 if (target < 0 || target >= 16)
548 return NFP_ERRNO(EINVAL);
549
550 if (island == 0) {
551 /* Already translated */
552 *cpp_target_id = cpp_island_id;
553 *cpp_target_address = cpp_island_address;
554 return 0;
555 }
556
557 if (!imb_table) {
558 /* CPP + Island only allowed on systems with IMB tables */
559 return NFP_ERRNO(EINVAL);
560 }
561
562 imb = imb_table[target];
563
564 *cpp_target_address = cpp_island_address;
565 err = _nfp6000_cppat_addr_encode(cpp_target_address, island, target,
566 ((imb >> 13) & 7),
567 ((imb >> 12) & 1),
568 ((imb >> 6) & 0x3f),
569 ((imb >> 0) & 0x3f));
570 if (err == 0) {
571 *cpp_target_id =
572 NFP_CPP_ID(target, NFP_CPP_ID_ACTION_of(cpp_island_id),
573 NFP_CPP_ID_TOKEN_of(cpp_island_id));
574 }
575
576 return err;
577 }
578
579 #endif /* NFP_TARGET_H */
580