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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
6281a769 CJ |
2 | /* |
3 | * Copyright 2015-2016 Freescale Semiconductor, Inc. | |
4 | * Copyright 2017 NXP | |
6281a769 CJ |
5 | */ |
6 | ||
7 | /* | |
8 | * @file | |
9 | * @brief PFE utility commands | |
10 | */ | |
11 | ||
12 | #include <net/pfe_eth/pfe_eth.h> | |
13 | ||
14 | static inline void pfe_command_help(void) | |
15 | { | |
16 | printf("Usage: pfe [pe | status | expt ] <options>\n"); | |
17 | } | |
18 | ||
19 | static void pfe_command_pe(int argc, char * const argv[]) | |
20 | { | |
21 | if (argc >= 3 && strcmp(argv[2], "pmem") == 0) { | |
22 | if (argc >= 4 && strcmp(argv[3], "read") == 0) { | |
23 | int i; | |
24 | int num; | |
25 | int id; | |
26 | u32 addr; | |
27 | u32 size; | |
28 | u32 val; | |
29 | ||
30 | if (argc == 7) { | |
31 | num = simple_strtoul(argv[6], NULL, 0); | |
32 | } else if (argc == 6) { | |
33 | num = 1; | |
34 | } else { | |
35 | printf("Usage: pfe pe pmem read <id> <addr> [<num>]\n"); | |
36 | return; | |
37 | } | |
38 | ||
39 | id = simple_strtoul(argv[4], NULL, 0); | |
40 | addr = simple_strtoul(argv[5], NULL, 16); | |
41 | size = 4; | |
42 | ||
43 | for (i = 0; i < num; i++, addr += 4) { | |
44 | val = pe_pmem_read(id, addr, size); | |
45 | val = be32_to_cpu(val); | |
46 | if (!(i & 3)) | |
47 | printf("%08x: ", addr); | |
48 | printf("%08x%s", val, i == num - 1 || (i & 3) | |
49 | == 3 ? "\n" : " "); | |
50 | } | |
51 | ||
52 | } else { | |
53 | printf("Usage: pfe pe pmem read <parameters>\n"); | |
54 | } | |
55 | } else if (argc >= 3 && strcmp(argv[2], "dmem") == 0) { | |
56 | if (argc >= 4 && strcmp(argv[3], "read") == 0) { | |
57 | int i; | |
58 | int num; | |
59 | int id; | |
60 | u32 addr; | |
61 | u32 size; | |
62 | u32 val; | |
63 | ||
64 | if (argc == 7) { | |
65 | num = simple_strtoul(argv[6], NULL, 0); | |
66 | } else if (argc == 6) { | |
67 | num = 1; | |
68 | } else { | |
69 | printf("Usage: pfe pe dmem read <id> <addr> [<num>]\n"); | |
70 | return; | |
71 | } | |
72 | ||
73 | id = simple_strtoul(argv[4], NULL, 0); | |
74 | addr = simple_strtoul(argv[5], NULL, 16); | |
75 | size = 4; | |
76 | ||
77 | for (i = 0; i < num; i++, addr += 4) { | |
78 | val = pe_dmem_read(id, addr, size); | |
79 | val = be32_to_cpu(val); | |
80 | if (!(i & 3)) | |
81 | printf("%08x: ", addr); | |
82 | printf("%08x%s", val, i == num - 1 || (i & 3) | |
83 | == 3 ? "\n" : " "); | |
84 | } | |
85 | ||
86 | } else if (argc >= 4 && strcmp(argv[3], "write") == 0) { | |
87 | int id; | |
88 | u32 val; | |
89 | u32 addr; | |
90 | u32 size; | |
91 | ||
92 | if (argc != 7) { | |
93 | printf("Usage: pfe pe dmem write <id> <val> <addr>\n"); | |
94 | return; | |
95 | } | |
96 | ||
97 | id = simple_strtoul(argv[4], NULL, 0); | |
98 | val = simple_strtoul(argv[5], NULL, 16); | |
99 | val = cpu_to_be32(val); | |
100 | addr = simple_strtoul(argv[6], NULL, 16); | |
101 | size = 4; | |
102 | pe_dmem_write(id, val, addr, size); | |
103 | } else { | |
104 | printf("Usage: pfe pe dmem [read | write] <parameters>\n"); | |
105 | } | |
106 | } else if (argc >= 3 && strcmp(argv[2], "lmem") == 0) { | |
107 | if (argc >= 4 && strcmp(argv[3], "read") == 0) { | |
108 | int i; | |
109 | int num; | |
110 | u32 val; | |
111 | u32 offset; | |
112 | ||
113 | if (argc == 6) { | |
114 | num = simple_strtoul(argv[5], NULL, 0); | |
115 | } else if (argc == 5) { | |
116 | num = 1; | |
117 | } else { | |
118 | printf("Usage: pfe pe lmem read <offset> [<num>]\n"); | |
119 | return; | |
120 | } | |
121 | ||
122 | offset = simple_strtoul(argv[4], NULL, 16); | |
123 | ||
124 | for (i = 0; i < num; i++, offset += 4) { | |
125 | pe_lmem_read(&val, 4, offset); | |
126 | val = be32_to_cpu(val); | |
127 | printf("%08x%s", val, i == num - 1 || (i & 7) | |
128 | == 7 ? "\n" : " "); | |
129 | } | |
130 | ||
131 | } else if (argc >= 4 && strcmp(argv[3], "write") == 0) { | |
132 | u32 val; | |
133 | u32 offset; | |
134 | ||
135 | if (argc != 6) { | |
136 | printf("Usage: pfe pe lmem write <val> <offset>\n"); | |
137 | return; | |
138 | } | |
139 | ||
140 | val = simple_strtoul(argv[4], NULL, 16); | |
141 | val = cpu_to_be32(val); | |
142 | offset = simple_strtoul(argv[5], NULL, 16); | |
143 | pe_lmem_write(&val, 4, offset); | |
144 | } else { | |
145 | printf("Usage: pfe pe lmem [read | write] <parameters>\n"); | |
146 | } | |
147 | } else { | |
148 | if (strcmp(argv[2], "help") != 0) | |
149 | printf("Unknown option: %s\n", argv[2]); | |
150 | ||
151 | printf("Usage: pfe pe <parameters>\n"); | |
152 | } | |
153 | } | |
154 | ||
155 | #define NUM_QUEUES 16 | |
156 | ||
157 | /* | |
158 | * qm_read_drop_stat | |
159 | * This function is used to read the drop statistics from the TMU | |
160 | * hw drop counter. Since the hw counter is always cleared afer | |
161 | * reading, this function maintains the previous drop count, and | |
162 | * adds the new value to it. That value can be retrieved by | |
163 | * passing a pointer to it with the total_drops arg. | |
164 | * | |
165 | * @param tmu TMU number (0 - 3) | |
166 | * @param queue queue number (0 - 15) | |
167 | * @param total_drops pointer to location to store total drops (or NULL) | |
168 | * @param do_reset if TRUE, clear total drops after updating | |
169 | * | |
170 | */ | |
171 | u32 qm_read_drop_stat(u32 tmu, u32 queue, u32 *total_drops, int do_reset) | |
172 | { | |
173 | static u32 qtotal[TMU_MAX_ID + 1][NUM_QUEUES]; | |
174 | u32 val; | |
175 | ||
176 | writel((tmu << 8) | queue, TMU_TEQ_CTRL); | |
177 | writel((tmu << 8) | queue, TMU_LLM_CTRL); | |
178 | val = readl(TMU_TEQ_DROP_STAT); | |
179 | qtotal[tmu][queue] += val; | |
180 | if (total_drops) | |
181 | *total_drops = qtotal[tmu][queue]; | |
182 | if (do_reset) | |
183 | qtotal[tmu][queue] = 0; | |
184 | return val; | |
185 | } | |
186 | ||
187 | static ssize_t tmu_queue_stats(char *buf, int tmu, int queue) | |
188 | { | |
189 | ssize_t len = 0; | |
190 | u32 drops; | |
191 | ||
192 | printf("%d-%02d, ", tmu, queue); | |
193 | ||
194 | drops = qm_read_drop_stat(tmu, queue, NULL, 0); | |
195 | ||
196 | /* Select queue */ | |
197 | writel((tmu << 8) | queue, TMU_TEQ_CTRL); | |
198 | writel((tmu << 8) | queue, TMU_LLM_CTRL); | |
199 | ||
200 | printf("(teq) drop: %10u, tx: %10u (llm) head: %08x, tail: %08x, drop: %10u\n", | |
201 | drops, readl(TMU_TEQ_TRANS_STAT), | |
202 | readl(TMU_LLM_QUE_HEADPTR), readl(TMU_LLM_QUE_TAILPTR), | |
203 | readl(TMU_LLM_QUE_DROPCNT)); | |
204 | ||
205 | return len; | |
206 | } | |
207 | ||
208 | static ssize_t tmu_queues(char *buf, int tmu) | |
209 | { | |
210 | ssize_t len = 0; | |
211 | int queue; | |
212 | ||
213 | for (queue = 0; queue < 16; queue++) | |
214 | len += tmu_queue_stats(buf + len, tmu, queue); | |
215 | ||
216 | return len; | |
217 | } | |
218 | ||
219 | static inline void hif_status(void) | |
220 | { | |
221 | printf("hif:\n"); | |
222 | ||
223 | printf(" tx curr bd: %x\n", readl(HIF_TX_CURR_BD_ADDR)); | |
224 | printf(" tx status: %x\n", readl(HIF_TX_STATUS)); | |
225 | printf(" tx dma status: %x\n", readl(HIF_TX_DMA_STATUS)); | |
226 | ||
227 | printf(" rx curr bd: %x\n", readl(HIF_RX_CURR_BD_ADDR)); | |
228 | printf(" rx status: %x\n", readl(HIF_RX_STATUS)); | |
229 | printf(" rx dma status: %x\n", readl(HIF_RX_DMA_STATUS)); | |
230 | ||
231 | printf("hif nocopy:\n"); | |
232 | ||
233 | printf(" tx curr bd: %x\n", readl(HIF_NOCPY_TX_CURR_BD_ADDR)); | |
234 | printf(" tx status: %x\n", readl(HIF_NOCPY_TX_STATUS)); | |
235 | printf(" tx dma status: %x\n", readl(HIF_NOCPY_TX_DMA_STATUS)); | |
236 | ||
237 | printf(" rx curr bd: %x\n", readl(HIF_NOCPY_RX_CURR_BD_ADDR)); | |
238 | printf(" rx status: %x\n", readl(HIF_NOCPY_RX_STATUS)); | |
239 | printf(" rx dma status: %x\n", readl(HIF_NOCPY_RX_DMA_STATUS)); | |
240 | } | |
241 | ||
242 | static void gpi(int id, void *base) | |
243 | { | |
244 | u32 val; | |
245 | ||
246 | printf("%s%d:\n", __func__, id); | |
247 | ||
248 | printf(" tx under stick: %x\n", readl(base + GPI_FIFO_STATUS)); | |
249 | val = readl(base + GPI_FIFO_DEBUG); | |
250 | printf(" tx pkts: %x\n", (val >> 23) & 0x3f); | |
251 | printf(" rx pkts: %x\n", (val >> 18) & 0x3f); | |
252 | printf(" tx bytes: %x\n", (val >> 9) & 0x1ff); | |
253 | printf(" rx bytes: %x\n", (val >> 0) & 0x1ff); | |
254 | printf(" overrun: %x\n", readl(base + GPI_OVERRUN_DROPCNT)); | |
255 | } | |
256 | ||
257 | static void bmu(int id, void *base) | |
258 | { | |
259 | printf("%s%d:\n", __func__, id); | |
260 | ||
261 | printf(" buf size: %x\n", (1 << readl(base + BMU_BUF_SIZE))); | |
262 | printf(" buf count: %x\n", readl(base + BMU_BUF_CNT)); | |
263 | printf(" buf rem: %x\n", readl(base + BMU_REM_BUF_CNT)); | |
264 | printf(" buf curr: %x\n", readl(base + BMU_CURR_BUF_CNT)); | |
265 | printf(" free err: %x\n", readl(base + BMU_FREE_ERR_ADDR)); | |
266 | } | |
267 | ||
268 | #define PESTATUS_ADDR_CLASS 0x800 | |
269 | #define PEMBOX_ADDR_CLASS 0x890 | |
270 | #define PESTATUS_ADDR_TMU 0x80 | |
271 | #define PEMBOX_ADDR_TMU 0x290 | |
272 | #define PESTATUS_ADDR_UTIL 0x0 | |
273 | ||
274 | static void pfe_pe_status(int argc, char * const argv[]) | |
275 | { | |
276 | int do_clear = 0; | |
277 | u32 id; | |
278 | u32 dmem_addr; | |
279 | u32 cpu_state; | |
280 | u32 activity_counter; | |
281 | u32 rx; | |
282 | u32 tx; | |
283 | u32 drop; | |
284 | char statebuf[5]; | |
285 | u32 class_debug_reg = 0; | |
286 | ||
287 | if (argc == 4 && strcmp(argv[3], "clear") == 0) | |
288 | do_clear = 1; | |
289 | ||
290 | for (id = CLASS0_ID; id < MAX_PE; id++) { | |
291 | if (id >= TMU0_ID) { | |
292 | if (id == TMU2_ID) | |
293 | continue; | |
294 | if (id == TMU0_ID) | |
295 | printf("tmu:\n"); | |
296 | dmem_addr = PESTATUS_ADDR_TMU; | |
297 | } else { | |
298 | if (id == CLASS0_ID) | |
299 | printf("class:\n"); | |
300 | dmem_addr = PESTATUS_ADDR_CLASS; | |
301 | class_debug_reg = readl(CLASS_PE0_DEBUG + id * 4); | |
302 | } | |
303 | ||
304 | cpu_state = pe_dmem_read(id, dmem_addr, 4); | |
305 | dmem_addr += 4; | |
306 | memcpy(statebuf, (char *)&cpu_state, 4); | |
307 | statebuf[4] = '\0'; | |
308 | activity_counter = pe_dmem_read(id, dmem_addr, 4); | |
309 | dmem_addr += 4; | |
310 | rx = pe_dmem_read(id, dmem_addr, 4); | |
311 | if (do_clear) | |
312 | pe_dmem_write(id, 0, dmem_addr, 4); | |
313 | dmem_addr += 4; | |
314 | tx = pe_dmem_read(id, dmem_addr, 4); | |
315 | if (do_clear) | |
316 | pe_dmem_write(id, 0, dmem_addr, 4); | |
317 | dmem_addr += 4; | |
318 | drop = pe_dmem_read(id, dmem_addr, 4); | |
319 | if (do_clear) | |
320 | pe_dmem_write(id, 0, dmem_addr, 4); | |
321 | dmem_addr += 4; | |
322 | ||
323 | if (id >= TMU0_ID) { | |
324 | printf("%d: state=%4s ctr=%08x rx=%x qstatus=%x\n", | |
325 | id - TMU0_ID, statebuf, | |
326 | cpu_to_be32(activity_counter), | |
327 | cpu_to_be32(rx), cpu_to_be32(tx)); | |
328 | } else { | |
329 | printf("%d: pc=1%04x ldst=%04x state=%4s ctr=%08x rx=%x tx=%x drop=%x\n", | |
330 | id - CLASS0_ID, class_debug_reg & 0xFFFF, | |
331 | class_debug_reg >> 16, | |
332 | statebuf, cpu_to_be32(activity_counter), | |
333 | cpu_to_be32(rx), cpu_to_be32(tx), | |
334 | cpu_to_be32(drop)); | |
335 | } | |
336 | } | |
337 | } | |
338 | ||
339 | static void pfe_command_status(int argc, char * const argv[]) | |
340 | { | |
341 | if (argc >= 3 && strcmp(argv[2], "pe") == 0) { | |
342 | pfe_pe_status(argc, argv); | |
343 | } else if (argc == 3 && strcmp(argv[2], "bmu") == 0) { | |
344 | bmu(1, BMU1_BASE_ADDR); | |
345 | bmu(2, BMU2_BASE_ADDR); | |
346 | } else if (argc == 3 && strcmp(argv[2], "hif") == 0) { | |
347 | hif_status(); | |
348 | } else if (argc == 3 && strcmp(argv[2], "gpi") == 0) { | |
349 | gpi(0, EGPI1_BASE_ADDR); | |
350 | gpi(1, EGPI2_BASE_ADDR); | |
351 | gpi(3, HGPI_BASE_ADDR); | |
352 | } else if (argc == 3 && strcmp(argv[2], "tmu0_queues") == 0) { | |
353 | tmu_queues(NULL, 0); | |
354 | } else if (argc == 3 && strcmp(argv[2], "tmu1_queues") == 0) { | |
355 | tmu_queues(NULL, 1); | |
356 | } else if (argc == 3 && strcmp(argv[2], "tmu3_queues") == 0) { | |
357 | tmu_queues(NULL, 3); | |
358 | } else { | |
359 | printf("Usage: pfe status [pe <clear> | bmu | gpi | hif | tmuX_queues ]\n"); | |
360 | } | |
361 | } | |
362 | ||
363 | #define EXPT_DUMP_ADDR 0x1fa8 | |
364 | #define EXPT_REG_COUNT 20 | |
365 | static const char *register_names[EXPT_REG_COUNT] = { | |
366 | " pc", "ECAS", " EID", " ED", | |
367 | " sp", " r1", " r2", " r3", | |
368 | " r4", " r5", " r6", " r7", | |
369 | " r8", " r9", " r10", " r11", | |
370 | " r12", " r13", " r14", " r15" | |
371 | }; | |
372 | ||
373 | static void pfe_command_expt(int argc, char * const argv[]) | |
374 | { | |
375 | unsigned int id, i, val, addr; | |
376 | ||
377 | if (argc == 3) { | |
378 | id = simple_strtoul(argv[2], NULL, 0); | |
379 | addr = EXPT_DUMP_ADDR; | |
380 | printf("Exception information for PE %d:\n", id); | |
381 | for (i = 0; i < EXPT_REG_COUNT; i++) { | |
382 | val = pe_dmem_read(id, addr, 4); | |
383 | val = be32_to_cpu(val); | |
384 | printf("%s:%08x%s", register_names[i], val, | |
385 | (i & 3) == 3 ? "\n" : " "); | |
386 | addr += 4; | |
387 | } | |
388 | } else { | |
389 | printf("Usage: pfe expt <id>\n"); | |
390 | } | |
391 | } | |
392 | ||
393 | #ifdef PFE_RESET_WA | |
394 | /*This function sends a dummy packet to HIF through TMU3 */ | |
395 | static void send_dummy_pkt_to_hif(void) | |
396 | { | |
397 | u32 buf; | |
398 | static u32 dummy_pkt[] = { | |
399 | 0x4200800a, 0x01000003, 0x00018100, 0x00000000, | |
400 | 0x33221100, 0x2b785544, 0xd73093cb, 0x01000608, | |
401 | 0x04060008, 0x2b780200, 0xd73093cb, 0x0a01a8c0, | |
402 | 0x33221100, 0xa8c05544, 0x00000301, 0x00000000, | |
403 | 0x00000000, 0x00000000, 0x00000000, 0xbe86c51f }; | |
404 | ||
405 | /*Allocate BMU2 buffer */ | |
406 | buf = readl(BMU2_BASE_ADDR + BMU_ALLOC_CTRL); | |
407 | ||
408 | debug("Sending a dummy pkt to HIF %x\n", buf); | |
409 | buf += 0x80; | |
410 | memcpy((void *)DDR_PFE_TO_VIRT(buf), dummy_pkt, sizeof(dummy_pkt)); | |
411 | ||
412 | /*Write length and pkt to TMU*/ | |
413 | writel(0x03000042, TMU_PHY_INQ_PKTPTR); | |
414 | writel(buf, TMU_PHY_INQ_PKTINFO); | |
415 | } | |
416 | ||
417 | static void pfe_command_stop(int argc, char * const argv[]) | |
418 | { | |
419 | int pfe_pe_id, hif_stop_loop = 10; | |
420 | u32 rx_status; | |
421 | ||
422 | printf("Stopping PFE...\n"); | |
423 | ||
424 | /*Mark all descriptors as LAST_BD */ | |
425 | hif_rx_desc_disable(); | |
426 | ||
427 | /*If HIF Rx BDP is busy send a dummy packet */ | |
428 | do { | |
429 | rx_status = readl(HIF_RX_STATUS); | |
430 | if (rx_status & BDP_CSR_RX_DMA_ACTV) | |
431 | send_dummy_pkt_to_hif(); | |
432 | udelay(10); | |
433 | } while (hif_stop_loop--); | |
434 | ||
435 | if (readl(HIF_RX_STATUS) & BDP_CSR_RX_DMA_ACTV) | |
436 | printf("Unable to stop HIF\n"); | |
437 | ||
438 | /*Disable Class PEs */ | |
439 | for (pfe_pe_id = CLASS0_ID; pfe_pe_id <= CLASS_MAX_ID; pfe_pe_id++) { | |
440 | /*Inform PE to stop */ | |
441 | pe_dmem_write(pfe_pe_id, cpu_to_be32(1), PEMBOX_ADDR_CLASS, 4); | |
442 | udelay(10); | |
443 | ||
444 | /*Read status */ | |
445 | if (!pe_dmem_read(pfe_pe_id, PEMBOX_ADDR_CLASS + 4, 4)) | |
446 | printf("Failed to stop PE%d\n", pfe_pe_id); | |
447 | } | |
448 | ||
449 | /*Disable TMU PEs */ | |
450 | for (pfe_pe_id = TMU0_ID; pfe_pe_id <= TMU_MAX_ID; pfe_pe_id++) { | |
451 | if (pfe_pe_id == TMU2_ID) | |
452 | continue; | |
453 | ||
454 | /*Inform PE to stop */ | |
455 | pe_dmem_write(pfe_pe_id, 1, PEMBOX_ADDR_TMU, 4); | |
456 | udelay(10); | |
457 | ||
458 | /*Read status */ | |
459 | if (!pe_dmem_read(pfe_pe_id, PEMBOX_ADDR_TMU + 4, 4)) | |
460 | printf("Failed to stop PE%d\n", pfe_pe_id); | |
461 | } | |
462 | } | |
463 | #endif | |
464 | ||
465 | static int pfe_command(cmd_tbl_t *cmdtp, int flag, int argc, | |
466 | char * const argv[]) | |
467 | { | |
468 | if (argc == 1 || strcmp(argv[1], "help") == 0) { | |
469 | pfe_command_help(); | |
470 | return CMD_RET_SUCCESS; | |
471 | } | |
472 | ||
473 | if (strcmp(argv[1], "pe") == 0) { | |
474 | pfe_command_pe(argc, argv); | |
475 | } else if (strcmp(argv[1], "status") == 0) { | |
476 | pfe_command_status(argc, argv); | |
477 | } else if (strcmp(argv[1], "expt") == 0) { | |
478 | pfe_command_expt(argc, argv); | |
479 | #ifdef PFE_RESET_WA | |
480 | } else if (strcmp(argv[1], "stop") == 0) { | |
481 | pfe_command_stop(argc, argv); | |
482 | #endif | |
483 | } else { | |
484 | printf("Unknown option: %s\n", argv[1]); | |
485 | pfe_command_help(); | |
486 | return CMD_RET_FAILURE; | |
487 | } | |
488 | return CMD_RET_SUCCESS; | |
489 | } | |
490 | ||
491 | U_BOOT_CMD( | |
492 | pfe, 7, 1, pfe_command, | |
493 | "Performs PFE lib utility functions", | |
494 | "Usage:\n" | |
495 | "pfe <options>" | |
496 | ); |