1 /* 2 * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. 3 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <linux/module.h> 19 #include <linux/debugfs.h> 20 #include <linux/seq_file.h> 21 #include <linux/pci.h> 22 #include <linux/rtnetlink.h> 23 #include <linux/power_supply.h> 24 #include "wil6210.h" 25 #include "wmi.h" 26 #include "txrx.h" 27 #include "pmc.h" 28 29 /* Nasty hack. Better have per device instances */ 30 static u32 mem_addr; 31 static u32 dbg_txdesc_index; 32 static u32 dbg_ring_index; /* 24+ for Rx, 0..23 for Tx */ 33 static u32 dbg_status_msg_index; 34 /* 0..wil->num_rx_status_rings-1 for Rx, wil->tx_sring_idx for Tx */ 35 static u32 dbg_sring_index; 36 37 enum dbg_off_type { 38 doff_u32 = 0, 39 doff_x32 = 1, 40 doff_ulong = 2, 41 doff_io32 = 3, 42 doff_u8 = 4 43 }; 44 45 /* offset to "wil" */ 46 struct dbg_off { 47 const char *name; 48 umode_t mode; 49 ulong off; 50 enum dbg_off_type type; 51 }; 52 53 static void wil_print_desc_edma(struct seq_file *s, struct wil6210_priv *wil, 54 struct wil_ring *ring, 55 char _s, char _h, int idx) 56 { 57 u8 num_of_descs; 58 bool has_skb = false; 59 60 if (ring->is_rx) { 61 struct wil_rx_enhanced_desc *rx_d = 62 (struct wil_rx_enhanced_desc *) 63 &ring->va[idx].rx.enhanced; 64 u16 buff_id = le16_to_cpu(rx_d->mac.buff_id); 65 66 if (wil->rx_buff_mgmt.buff_arr && 67 wil_val_in_range(buff_id, 0, wil->rx_buff_mgmt.size)) 68 has_skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb; 69 seq_printf(s, "%c", (has_skb) ? _h : _s); 70 } else { 71 struct wil_tx_enhanced_desc *d = 72 (struct wil_tx_enhanced_desc *) 73 &ring->va[idx].tx.enhanced; 74 75 num_of_descs = (u8)d->mac.d[2]; 76 has_skb = ring->ctx && ring->ctx[idx].skb; 77 if (num_of_descs >= 1) 78 seq_printf(s, "%c", has_skb ? _h : _s); 79 else 80 /* num_of_descs == 0, it's a frag in a list of descs */ 81 seq_printf(s, "%c", has_skb ? 'h' : _s); 82 } 83 } 84 85 static void wil_print_ring(struct seq_file *s, struct wil6210_priv *wil, 86 const char *name, struct wil_ring *ring, 87 char _s, char _h) 88 { 89 void __iomem *x; 90 u32 v; 91 92 seq_printf(s, "RING %s = {\n", name); 93 seq_printf(s, " pa = %pad\n", &ring->pa); 94 seq_printf(s, " va = 0x%p\n", ring->va); 95 seq_printf(s, " size = %d\n", ring->size); 96 if (wil->use_enhanced_dma_hw && ring->is_rx) 97 seq_printf(s, " swtail = %u\n", *ring->edma_rx_swtail.va); 98 else 99 seq_printf(s, " swtail = %d\n", ring->swtail); 100 seq_printf(s, " swhead = %d\n", ring->swhead); 101 if (wil->use_enhanced_dma_hw) { 102 int ring_id = ring->is_rx ? 103 WIL_RX_DESC_RING_ID : ring - wil->ring_tx; 104 /* SUBQ_CONS is a table of 32 entries, one for each Q pair. 105 * lower 16bits are for even ring_id and upper 16bits are for 106 * odd ring_id 107 */ 108 x = wmi_addr(wil, RGF_DMA_SCM_SUBQ_CONS + 4 * (ring_id / 2)); 109 v = readl_relaxed(x); 110 111 v = (ring_id % 2 ? (v >> 16) : (v & 0xffff)); 112 seq_printf(s, " hwhead = %u\n", v); 113 } 114 seq_printf(s, " hwtail = [0x%08x] -> ", ring->hwtail); 115 x = wmi_addr(wil, ring->hwtail); 116 if (x) { 117 v = readl(x); 118 seq_printf(s, "0x%08x = %d\n", v, v); 119 } else { 120 seq_puts(s, "???\n"); 121 } 122 123 if (ring->va && (ring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) { 124 uint i; 125 126 for (i = 0; i < ring->size; i++) { 127 if ((i % 128) == 0 && i != 0) 128 seq_puts(s, "\n"); 129 if (wil->use_enhanced_dma_hw) { 130 wil_print_desc_edma(s, wil, ring, _s, _h, i); 131 } else { 132 volatile struct vring_tx_desc *d = 133 &ring->va[i].tx.legacy; 134 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 135 _s : (ring->ctx[i].skb ? _h : 'h')); 136 } 137 } 138 seq_puts(s, "\n"); 139 } 140 seq_puts(s, "}\n"); 141 } 142 143 static int ring_show(struct seq_file *s, void *data) 144 { 145 uint i; 146 struct wil6210_priv *wil = s->private; 147 148 wil_print_ring(s, wil, "rx", &wil->ring_rx, 'S', '_'); 149 150 for (i = 0; i < ARRAY_SIZE(wil->ring_tx); i++) { 151 struct wil_ring *ring = &wil->ring_tx[i]; 152 struct wil_ring_tx_data *txdata = &wil->ring_tx_data[i]; 153 154 if (ring->va) { 155 int cid = wil->ring2cid_tid[i][0]; 156 int tid = wil->ring2cid_tid[i][1]; 157 u32 swhead = ring->swhead; 158 u32 swtail = ring->swtail; 159 int used = (ring->size + swhead - swtail) 160 % ring->size; 161 int avail = ring->size - used - 1; 162 char name[10]; 163 char sidle[10]; 164 /* performance monitoring */ 165 cycles_t now = get_cycles(); 166 uint64_t idle = txdata->idle * 100; 167 uint64_t total = now - txdata->begin; 168 169 if (total != 0) { 170 do_div(idle, total); 171 snprintf(sidle, sizeof(sidle), "%3d%%", 172 (int)idle); 173 } else { 174 snprintf(sidle, sizeof(sidle), "N/A"); 175 } 176 txdata->begin = now; 177 txdata->idle = 0ULL; 178 179 snprintf(name, sizeof(name), "tx_%2d", i); 180 181 if (cid < wil->max_assoc_sta) 182 seq_printf(s, 183 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n", 184 wil->sta[cid].addr, cid, tid, 185 txdata->dot1x_open ? "+" : "-", 186 txdata->agg_wsize, 187 txdata->agg_timeout, 188 txdata->agg_amsdu ? "+" : "-", 189 used, avail, sidle); 190 else 191 seq_printf(s, 192 "\nBroadcast 1x%s [%3d|%3d] idle %s\n", 193 txdata->dot1x_open ? "+" : "-", 194 used, avail, sidle); 195 196 wil_print_ring(s, wil, name, ring, '_', 'H'); 197 } 198 } 199 200 return 0; 201 } 202 DEFINE_SHOW_ATTRIBUTE(ring); 203 204 static void wil_print_sring(struct seq_file *s, struct wil6210_priv *wil, 205 struct wil_status_ring *sring) 206 { 207 void __iomem *x; 208 int sring_idx = sring - wil->srings; 209 u32 v; 210 211 seq_printf(s, "Status Ring %s [ %d ] = {\n", 212 sring->is_rx ? "RX" : "TX", sring_idx); 213 seq_printf(s, " pa = %pad\n", &sring->pa); 214 seq_printf(s, " va = 0x%pK\n", sring->va); 215 seq_printf(s, " size = %d\n", sring->size); 216 seq_printf(s, " elem_size = %zu\n", sring->elem_size); 217 seq_printf(s, " swhead = %d\n", sring->swhead); 218 if (wil->use_enhanced_dma_hw) { 219 /* COMPQ_PROD is a table of 32 entries, one for each Q pair. 220 * lower 16bits are for even ring_id and upper 16bits are for 221 * odd ring_id 222 */ 223 x = wmi_addr(wil, RGF_DMA_SCM_COMPQ_PROD + 4 * (sring_idx / 2)); 224 v = readl_relaxed(x); 225 226 v = (sring_idx % 2 ? (v >> 16) : (v & 0xffff)); 227 seq_printf(s, " hwhead = %u\n", v); 228 } 229 seq_printf(s, " hwtail = [0x%08x] -> ", sring->hwtail); 230 x = wmi_addr(wil, sring->hwtail); 231 if (x) { 232 v = readl_relaxed(x); 233 seq_printf(s, "0x%08x = %d\n", v, v); 234 } else { 235 seq_puts(s, "???\n"); 236 } 237 seq_printf(s, " desc_rdy_pol = %d\n", sring->desc_rdy_pol); 238 seq_printf(s, " invalid_buff_id_cnt = %d\n", 239 sring->invalid_buff_id_cnt); 240 241 if (sring->va && (sring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) { 242 uint i; 243 244 for (i = 0; i < sring->size; i++) { 245 u32 *sdword_0 = 246 (u32 *)(sring->va + (sring->elem_size * i)); 247 248 if ((i % 128) == 0 && i != 0) 249 seq_puts(s, "\n"); 250 if (i == sring->swhead) 251 seq_printf(s, "%c", (*sdword_0 & BIT(31)) ? 252 'X' : 'x'); 253 else 254 seq_printf(s, "%c", (*sdword_0 & BIT(31)) ? 255 '1' : '0'); 256 } 257 seq_puts(s, "\n"); 258 } 259 seq_puts(s, "}\n"); 260 } 261 262 static int srings_show(struct seq_file *s, void *data) 263 { 264 struct wil6210_priv *wil = s->private; 265 int i = 0; 266 267 for (i = 0; i < WIL6210_MAX_STATUS_RINGS; i++) 268 if (wil->srings[i].va) 269 wil_print_sring(s, wil, &wil->srings[i]); 270 271 return 0; 272 } 273 DEFINE_SHOW_ATTRIBUTE(srings); 274 275 static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 276 const char *prefix) 277 { 278 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false); 279 } 280 281 static void wil_print_mbox_ring(struct seq_file *s, const char *prefix, 282 void __iomem *off) 283 { 284 struct wil6210_priv *wil = s->private; 285 struct wil6210_mbox_ring r; 286 int rsize; 287 uint i; 288 289 wil_halp_vote(wil); 290 291 if (wil_mem_access_lock(wil)) { 292 wil_halp_unvote(wil); 293 return; 294 } 295 296 wil_memcpy_fromio_32(&r, off, sizeof(r)); 297 wil_mbox_ring_le2cpus(&r); 298 /* 299 * we just read memory block from NIC. This memory may be 300 * garbage. Check validity before using it. 301 */ 302 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 303 304 seq_printf(s, "ring %s = {\n", prefix); 305 seq_printf(s, " base = 0x%08x\n", r.base); 306 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 307 seq_printf(s, " tail = 0x%08x\n", r.tail); 308 seq_printf(s, " head = 0x%08x\n", r.head); 309 seq_printf(s, " entry size = %d\n", r.entry_size); 310 311 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 312 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 313 sizeof(struct wil6210_mbox_ring_desc)); 314 goto out; 315 } 316 317 if (!wmi_addr(wil, r.base) || 318 !wmi_addr(wil, r.tail) || 319 !wmi_addr(wil, r.head)) { 320 seq_puts(s, " ??? pointers are garbage?\n"); 321 goto out; 322 } 323 324 for (i = 0; i < rsize; i++) { 325 struct wil6210_mbox_ring_desc d; 326 struct wil6210_mbox_hdr hdr; 327 size_t delta = i * sizeof(d); 328 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 329 330 wil_memcpy_fromio_32(&d, x, sizeof(d)); 331 332 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 333 d.sync ? "F" : "E", 334 (r.tail - r.base == delta) ? "t" : " ", 335 (r.head - r.base == delta) ? "h" : " ", 336 le32_to_cpu(d.addr)); 337 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 338 u16 len = le16_to_cpu(hdr.len); 339 340 seq_printf(s, " -> %04x %04x %04x %02x\n", 341 le16_to_cpu(hdr.seq), len, 342 le16_to_cpu(hdr.type), hdr.flags); 343 if (len <= MAX_MBOXITEM_SIZE) { 344 unsigned char databuf[MAX_MBOXITEM_SIZE]; 345 void __iomem *src = wmi_buffer(wil, d.addr) + 346 sizeof(struct wil6210_mbox_hdr); 347 /* 348 * No need to check @src for validity - 349 * we already validated @d.addr while 350 * reading header 351 */ 352 wil_memcpy_fromio_32(databuf, src, len); 353 wil_seq_hexdump(s, databuf, len, " : "); 354 } 355 } else { 356 seq_puts(s, "\n"); 357 } 358 } 359 out: 360 seq_puts(s, "}\n"); 361 wil_mem_access_unlock(wil); 362 wil_halp_unvote(wil); 363 } 364 365 static int mbox_show(struct seq_file *s, void *data) 366 { 367 struct wil6210_priv *wil = s->private; 368 int ret; 369 370 ret = wil_pm_runtime_get(wil); 371 if (ret < 0) 372 return ret; 373 374 wil_print_mbox_ring(s, "tx", wil->csr + HOST_MBOX + 375 offsetof(struct wil6210_mbox_ctl, tx)); 376 wil_print_mbox_ring(s, "rx", wil->csr + HOST_MBOX + 377 offsetof(struct wil6210_mbox_ctl, rx)); 378 379 wil_pm_runtime_put(wil); 380 381 return 0; 382 } 383 DEFINE_SHOW_ATTRIBUTE(mbox); 384 385 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 386 { 387 struct wil_debugfs_iomem_data *d = (struct 388 wil_debugfs_iomem_data *)data; 389 struct wil6210_priv *wil = d->wil; 390 int ret; 391 392 ret = wil_pm_runtime_get(wil); 393 if (ret < 0) 394 return ret; 395 396 writel(val, (void __iomem *)d->offset); 397 wmb(); /* make sure write propagated to HW */ 398 399 wil_pm_runtime_put(wil); 400 401 return 0; 402 } 403 404 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 405 { 406 struct wil_debugfs_iomem_data *d = (struct 407 wil_debugfs_iomem_data *)data; 408 struct wil6210_priv *wil = d->wil; 409 int ret; 410 411 ret = wil_pm_runtime_get(wil); 412 if (ret < 0) 413 return ret; 414 415 *val = readl((void __iomem *)d->offset); 416 417 wil_pm_runtime_put(wil); 418 419 return 0; 420 } 421 422 DEFINE_DEBUGFS_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 423 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 424 425 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 426 umode_t mode, 427 struct dentry *parent, 428 void *value, 429 struct wil6210_priv *wil) 430 { 431 struct dentry *file; 432 struct wil_debugfs_iomem_data *data = &wil->dbg_data.data_arr[ 433 wil->dbg_data.iomem_data_count]; 434 435 data->wil = wil; 436 data->offset = value; 437 438 file = debugfs_create_file_unsafe(name, mode, parent, data, 439 &fops_iomem_x32); 440 if (!IS_ERR_OR_NULL(file)) 441 wil->dbg_data.iomem_data_count++; 442 443 return file; 444 } 445 446 static int wil_debugfs_ulong_set(void *data, u64 val) 447 { 448 *(ulong *)data = val; 449 return 0; 450 } 451 452 static int wil_debugfs_ulong_get(void *data, u64 *val) 453 { 454 *val = *(ulong *)data; 455 return 0; 456 } 457 458 DEFINE_DEBUGFS_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 459 wil_debugfs_ulong_set, "0x%llx\n"); 460 461 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 462 struct dentry *parent, 463 ulong *value) 464 { 465 return debugfs_create_file_unsafe(name, mode, parent, value, 466 &wil_fops_ulong); 467 } 468 469 /** 470 * wil6210_debugfs_init_offset - create set of debugfs files 471 * @wil - driver's context, used for printing 472 * @dbg - directory on the debugfs, where files will be created 473 * @base - base address used in address calculation 474 * @tbl - table with file descriptions. Should be terminated with empty element. 475 * 476 * Creates files accordingly to the @tbl. 477 */ 478 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 479 struct dentry *dbg, void *base, 480 const struct dbg_off * const tbl) 481 { 482 int i; 483 484 for (i = 0; tbl[i].name; i++) { 485 struct dentry *f; 486 487 switch (tbl[i].type) { 488 case doff_u32: 489 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 490 base + tbl[i].off); 491 break; 492 case doff_x32: 493 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 494 base + tbl[i].off); 495 break; 496 case doff_ulong: 497 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode, 498 dbg, base + tbl[i].off); 499 break; 500 case doff_io32: 501 f = wil_debugfs_create_iomem_x32(tbl[i].name, 502 tbl[i].mode, dbg, 503 base + tbl[i].off, 504 wil); 505 break; 506 case doff_u8: 507 f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg, 508 base + tbl[i].off); 509 break; 510 default: 511 f = ERR_PTR(-EINVAL); 512 } 513 if (IS_ERR_OR_NULL(f)) 514 wil_err(wil, "Create file \"%s\": err %ld\n", 515 tbl[i].name, PTR_ERR(f)); 516 } 517 } 518 519 static const struct dbg_off isr_off[] = { 520 {"ICC", 0644, offsetof(struct RGF_ICR, ICC), doff_io32}, 521 {"ICR", 0644, offsetof(struct RGF_ICR, ICR), doff_io32}, 522 {"ICM", 0644, offsetof(struct RGF_ICR, ICM), doff_io32}, 523 {"ICS", 0244, offsetof(struct RGF_ICR, ICS), doff_io32}, 524 {"IMV", 0644, offsetof(struct RGF_ICR, IMV), doff_io32}, 525 {"IMS", 0244, offsetof(struct RGF_ICR, IMS), doff_io32}, 526 {"IMC", 0244, offsetof(struct RGF_ICR, IMC), doff_io32}, 527 {}, 528 }; 529 530 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 531 const char *name, 532 struct dentry *parent, u32 off) 533 { 534 struct dentry *d = debugfs_create_dir(name, parent); 535 536 if (IS_ERR_OR_NULL(d)) 537 return -ENODEV; 538 539 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 540 isr_off); 541 542 return 0; 543 } 544 545 static const struct dbg_off pseudo_isr_off[] = { 546 {"CAUSE", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 547 {"MASK_SW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 548 {"MASK_FW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 549 {}, 550 }; 551 552 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 553 struct dentry *parent) 554 { 555 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 556 557 if (IS_ERR_OR_NULL(d)) 558 return -ENODEV; 559 560 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 561 pseudo_isr_off); 562 563 return 0; 564 } 565 566 static const struct dbg_off lgc_itr_cnt_off[] = { 567 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 568 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 569 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 570 {}, 571 }; 572 573 static const struct dbg_off tx_itr_cnt_off[] = { 574 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 575 doff_io32}, 576 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 577 doff_io32}, 578 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 579 doff_io32}, 580 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 581 doff_io32}, 582 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 583 doff_io32}, 584 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 585 doff_io32}, 586 {}, 587 }; 588 589 static const struct dbg_off rx_itr_cnt_off[] = { 590 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 591 doff_io32}, 592 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 593 doff_io32}, 594 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 595 doff_io32}, 596 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 597 doff_io32}, 598 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 599 doff_io32}, 600 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 601 doff_io32}, 602 {}, 603 }; 604 605 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 606 struct dentry *parent) 607 { 608 struct dentry *d, *dtx, *drx; 609 610 d = debugfs_create_dir("ITR_CNT", parent); 611 if (IS_ERR_OR_NULL(d)) 612 return -ENODEV; 613 614 dtx = debugfs_create_dir("TX", d); 615 drx = debugfs_create_dir("RX", d); 616 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx)) 617 return -ENODEV; 618 619 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 620 lgc_itr_cnt_off); 621 622 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 623 tx_itr_cnt_off); 624 625 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 626 rx_itr_cnt_off); 627 return 0; 628 } 629 630 static int memread_show(struct seq_file *s, void *data) 631 { 632 struct wil6210_priv *wil = s->private; 633 void __iomem *a; 634 int ret; 635 636 ret = wil_pm_runtime_get(wil); 637 if (ret < 0) 638 return ret; 639 640 ret = wil_mem_access_lock(wil); 641 if (ret) { 642 wil_pm_runtime_put(wil); 643 return ret; 644 } 645 646 a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 647 648 if (a) 649 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a)); 650 else 651 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 652 653 wil_mem_access_unlock(wil); 654 wil_pm_runtime_put(wil); 655 656 return 0; 657 } 658 DEFINE_SHOW_ATTRIBUTE(memread); 659 660 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 661 size_t count, loff_t *ppos) 662 { 663 enum { max_count = 4096 }; 664 struct wil_blob_wrapper *wil_blob = file->private_data; 665 struct wil6210_priv *wil = wil_blob->wil; 666 loff_t aligned_pos, pos = *ppos; 667 size_t available = wil_blob->blob.size; 668 void *buf; 669 size_t unaligned_bytes, aligned_count, ret; 670 int rc; 671 672 if (pos < 0) 673 return -EINVAL; 674 675 if (pos >= available || !count) 676 return 0; 677 678 if (count > available - pos) 679 count = available - pos; 680 if (count > max_count) 681 count = max_count; 682 683 /* set pos to 4 bytes aligned */ 684 unaligned_bytes = pos % 4; 685 aligned_pos = pos - unaligned_bytes; 686 aligned_count = count + unaligned_bytes; 687 688 buf = kmalloc(aligned_count, GFP_KERNEL); 689 if (!buf) 690 return -ENOMEM; 691 692 rc = wil_pm_runtime_get(wil); 693 if (rc < 0) { 694 kfree(buf); 695 return rc; 696 } 697 698 rc = wil_mem_access_lock(wil); 699 if (rc) { 700 kfree(buf); 701 wil_pm_runtime_put(wil); 702 return rc; 703 } 704 705 wil_memcpy_fromio_32(buf, (const void __iomem *) 706 wil_blob->blob.data + aligned_pos, aligned_count); 707 708 ret = copy_to_user(user_buf, buf + unaligned_bytes, count); 709 710 wil_mem_access_unlock(wil); 711 wil_pm_runtime_put(wil); 712 713 kfree(buf); 714 if (ret == count) 715 return -EFAULT; 716 717 count -= ret; 718 *ppos = pos + count; 719 720 return count; 721 } 722 723 static const struct file_operations fops_ioblob = { 724 .read = wil_read_file_ioblob, 725 .open = simple_open, 726 .llseek = default_llseek, 727 }; 728 729 static 730 struct dentry *wil_debugfs_create_ioblob(const char *name, 731 umode_t mode, 732 struct dentry *parent, 733 struct wil_blob_wrapper *wil_blob) 734 { 735 return debugfs_create_file(name, mode, parent, wil_blob, &fops_ioblob); 736 } 737 738 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 739 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 740 size_t len, loff_t *ppos) 741 { 742 struct wil6210_priv *wil = file->private_data; 743 int rc; 744 long channel; 745 bool on; 746 747 char *kbuf = memdup_user_nul(buf, len); 748 749 if (IS_ERR(kbuf)) 750 return PTR_ERR(kbuf); 751 rc = kstrtol(kbuf, 0, &channel); 752 kfree(kbuf); 753 if (rc) 754 return rc; 755 756 if ((channel < 0) || (channel > 4)) { 757 wil_err(wil, "Invalid channel %ld\n", channel); 758 return -EINVAL; 759 } 760 on = !!channel; 761 762 if (on) { 763 rc = wmi_set_channel(wil, (int)channel); 764 if (rc) 765 return rc; 766 } 767 768 rc = wmi_rxon(wil, on); 769 if (rc) 770 return rc; 771 772 return len; 773 } 774 775 static const struct file_operations fops_rxon = { 776 .write = wil_write_file_rxon, 777 .open = simple_open, 778 }; 779 780 /* block ack control, write: 781 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 782 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 783 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 784 */ 785 static ssize_t wil_write_back(struct file *file, const char __user *buf, 786 size_t len, loff_t *ppos) 787 { 788 struct wil6210_priv *wil = file->private_data; 789 int rc; 790 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 791 char cmd[9]; 792 int p1, p2, p3; 793 794 if (!kbuf) 795 return -ENOMEM; 796 797 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 798 if (rc != len) { 799 kfree(kbuf); 800 return rc >= 0 ? -EIO : rc; 801 } 802 803 kbuf[len] = '\0'; 804 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 805 kfree(kbuf); 806 807 if (rc < 0) 808 return rc; 809 if (rc < 2) 810 return -EINVAL; 811 812 if ((strcmp(cmd, "add") == 0) || 813 (strcmp(cmd, "del_tx") == 0)) { 814 struct wil_ring_tx_data *txdata; 815 816 if (p1 < 0 || p1 >= WIL6210_MAX_TX_RINGS) { 817 wil_err(wil, "BACK: invalid ring id %d\n", p1); 818 return -EINVAL; 819 } 820 txdata = &wil->ring_tx_data[p1]; 821 if (strcmp(cmd, "add") == 0) { 822 if (rc < 3) { 823 wil_err(wil, "BACK: add require at least 2 params\n"); 824 return -EINVAL; 825 } 826 if (rc < 4) 827 p3 = 0; 828 wmi_addba(wil, txdata->mid, p1, p2, p3); 829 } else { 830 if (rc < 3) 831 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 832 wmi_delba_tx(wil, txdata->mid, p1, p2); 833 } 834 } else if (strcmp(cmd, "del_rx") == 0) { 835 struct wil_sta_info *sta; 836 837 if (rc < 3) { 838 wil_err(wil, 839 "BACK: del_rx require at least 2 params\n"); 840 return -EINVAL; 841 } 842 if (p1 < 0 || p1 >= wil->max_assoc_sta) { 843 wil_err(wil, "BACK: invalid CID %d\n", p1); 844 return -EINVAL; 845 } 846 if (rc < 4) 847 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 848 sta = &wil->sta[p1]; 849 wmi_delba_rx(wil, sta->mid, p1, p2, p3); 850 } else { 851 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 852 return -EINVAL; 853 } 854 855 return len; 856 } 857 858 static ssize_t wil_read_back(struct file *file, char __user *user_buf, 859 size_t count, loff_t *ppos) 860 { 861 static const char text[] = "block ack control, write:\n" 862 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 863 "If missing, <timeout> defaults to 0\n" 864 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 865 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 866 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 867 868 return simple_read_from_buffer(user_buf, count, ppos, text, 869 sizeof(text)); 870 } 871 872 static const struct file_operations fops_back = { 873 .read = wil_read_back, 874 .write = wil_write_back, 875 .open = simple_open, 876 }; 877 878 /* pmc control, write: 879 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 880 * - "free" to release memory allocated for PMC 881 */ 882 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 883 size_t len, loff_t *ppos) 884 { 885 struct wil6210_priv *wil = file->private_data; 886 int rc; 887 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 888 char cmd[9]; 889 int num_descs, desc_size; 890 891 if (!kbuf) 892 return -ENOMEM; 893 894 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 895 if (rc != len) { 896 kfree(kbuf); 897 return rc >= 0 ? -EIO : rc; 898 } 899 900 kbuf[len] = '\0'; 901 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 902 kfree(kbuf); 903 904 if (rc < 0) 905 return rc; 906 907 if (rc < 1) { 908 wil_err(wil, "pmccfg: no params given\n"); 909 return -EINVAL; 910 } 911 912 if (0 == strcmp(cmd, "alloc")) { 913 if (rc != 3) { 914 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 915 return -EINVAL; 916 } 917 wil_pmc_alloc(wil, num_descs, desc_size); 918 } else if (0 == strcmp(cmd, "free")) { 919 if (rc != 1) { 920 wil_err(wil, "pmccfg: free does not have any params\n"); 921 return -EINVAL; 922 } 923 wil_pmc_free(wil, true); 924 } else { 925 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 926 return -EINVAL; 927 } 928 929 return len; 930 } 931 932 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 933 size_t count, loff_t *ppos) 934 { 935 struct wil6210_priv *wil = file->private_data; 936 char text[256]; 937 char help[] = "pmc control, write:\n" 938 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 939 " - \"free\" to free memory allocated for pmc\n"; 940 941 sprintf(text, "Last command status: %d\n\n%s", 942 wil_pmc_last_cmd_status(wil), 943 help); 944 945 return simple_read_from_buffer(user_buf, count, ppos, text, 946 strlen(text) + 1); 947 } 948 949 static const struct file_operations fops_pmccfg = { 950 .read = wil_read_pmccfg, 951 .write = wil_write_pmccfg, 952 .open = simple_open, 953 }; 954 955 static const struct file_operations fops_pmcdata = { 956 .open = simple_open, 957 .read = wil_pmc_read, 958 .llseek = wil_pmc_llseek, 959 }; 960 961 /*---tx_mgmt---*/ 962 /* Write mgmt frame to this file to send it */ 963 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 964 size_t len, loff_t *ppos) 965 { 966 struct wil6210_priv *wil = file->private_data; 967 struct wiphy *wiphy = wil_to_wiphy(wil); 968 struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr; 969 struct cfg80211_mgmt_tx_params params; 970 int rc; 971 void *frame; 972 973 memset(¶ms, 0, sizeof(params)); 974 975 if (!len) 976 return -EINVAL; 977 978 frame = memdup_user(buf, len); 979 if (IS_ERR(frame)) 980 return PTR_ERR(frame); 981 982 params.buf = frame; 983 params.len = len; 984 985 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 986 987 kfree(frame); 988 wil_info(wil, "-> %d\n", rc); 989 990 return len; 991 } 992 993 static const struct file_operations fops_txmgmt = { 994 .write = wil_write_file_txmgmt, 995 .open = simple_open, 996 }; 997 998 /* Write WMI command (w/o mbox header) to this file to send it 999 * WMI starts from wil6210_mbox_hdr_wmi header 1000 */ 1001 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 1002 size_t len, loff_t *ppos) 1003 { 1004 struct wil6210_priv *wil = file->private_data; 1005 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev); 1006 struct wmi_cmd_hdr *wmi; 1007 void *cmd; 1008 int cmdlen = len - sizeof(struct wmi_cmd_hdr); 1009 u16 cmdid; 1010 int rc, rc1; 1011 1012 if (cmdlen < 0) 1013 return -EINVAL; 1014 1015 wmi = kmalloc(len, GFP_KERNEL); 1016 if (!wmi) 1017 return -ENOMEM; 1018 1019 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 1020 if (rc < 0) { 1021 kfree(wmi); 1022 return rc; 1023 } 1024 1025 cmd = (cmdlen > 0) ? &wmi[1] : NULL; 1026 cmdid = le16_to_cpu(wmi->command_id); 1027 1028 rc1 = wmi_send(wil, cmdid, vif->mid, cmd, cmdlen); 1029 kfree(wmi); 1030 1031 wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1); 1032 1033 return rc; 1034 } 1035 1036 static const struct file_operations fops_wmi = { 1037 .write = wil_write_file_wmi, 1038 .open = simple_open, 1039 }; 1040 1041 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 1042 { 1043 int i = 0; 1044 int len = skb_headlen(skb); 1045 void *p = skb->data; 1046 int nr_frags = skb_shinfo(skb)->nr_frags; 1047 1048 seq_printf(s, " len = %d\n", len); 1049 wil_seq_hexdump(s, p, len, " : "); 1050 1051 if (nr_frags) { 1052 seq_printf(s, " nr_frags = %d\n", nr_frags); 1053 for (i = 0; i < nr_frags; i++) { 1054 const struct skb_frag_struct *frag = 1055 &skb_shinfo(skb)->frags[i]; 1056 1057 len = skb_frag_size(frag); 1058 p = skb_frag_address_safe(frag); 1059 seq_printf(s, " [%2d] : len = %d\n", i, len); 1060 wil_seq_hexdump(s, p, len, " : "); 1061 } 1062 } 1063 } 1064 1065 /*---------Tx/Rx descriptor------------*/ 1066 static int txdesc_show(struct seq_file *s, void *data) 1067 { 1068 struct wil6210_priv *wil = s->private; 1069 struct wil_ring *ring; 1070 bool tx; 1071 int ring_idx = dbg_ring_index; 1072 int txdesc_idx = dbg_txdesc_index; 1073 volatile struct vring_tx_desc *d; 1074 volatile u32 *u; 1075 struct sk_buff *skb; 1076 1077 if (wil->use_enhanced_dma_hw) { 1078 /* RX ring index == 0 */ 1079 if (ring_idx >= WIL6210_MAX_TX_RINGS) { 1080 seq_printf(s, "invalid ring index %d\n", ring_idx); 1081 return 0; 1082 } 1083 tx = ring_idx > 0; /* desc ring 0 is reserved for RX */ 1084 } else { 1085 /* RX ring index == WIL6210_MAX_TX_RINGS */ 1086 if (ring_idx > WIL6210_MAX_TX_RINGS) { 1087 seq_printf(s, "invalid ring index %d\n", ring_idx); 1088 return 0; 1089 } 1090 tx = (ring_idx < WIL6210_MAX_TX_RINGS); 1091 } 1092 1093 ring = tx ? &wil->ring_tx[ring_idx] : &wil->ring_rx; 1094 1095 if (!ring->va) { 1096 if (tx) 1097 seq_printf(s, "No Tx[%2d] RING\n", ring_idx); 1098 else 1099 seq_puts(s, "No Rx RING\n"); 1100 return 0; 1101 } 1102 1103 if (txdesc_idx >= ring->size) { 1104 if (tx) 1105 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 1106 ring_idx, txdesc_idx, ring->size); 1107 else 1108 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 1109 txdesc_idx, ring->size); 1110 return 0; 1111 } 1112 1113 /* use struct vring_tx_desc for Rx as well, 1114 * only field used, .dma.length, is the same 1115 */ 1116 d = &ring->va[txdesc_idx].tx.legacy; 1117 u = (volatile u32 *)d; 1118 skb = NULL; 1119 1120 if (wil->use_enhanced_dma_hw) { 1121 if (tx) { 1122 skb = ring->ctx ? ring->ctx[txdesc_idx].skb : NULL; 1123 } else if (wil->rx_buff_mgmt.buff_arr) { 1124 struct wil_rx_enhanced_desc *rx_d = 1125 (struct wil_rx_enhanced_desc *) 1126 &ring->va[txdesc_idx].rx.enhanced; 1127 u16 buff_id = le16_to_cpu(rx_d->mac.buff_id); 1128 1129 if (!wil_val_in_range(buff_id, 0, 1130 wil->rx_buff_mgmt.size)) 1131 seq_printf(s, "invalid buff_id %d\n", buff_id); 1132 else 1133 skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb; 1134 } 1135 } else { 1136 skb = ring->ctx[txdesc_idx].skb; 1137 } 1138 if (tx) 1139 seq_printf(s, "Tx[%2d][%3d] = {\n", ring_idx, 1140 txdesc_idx); 1141 else 1142 seq_printf(s, "Rx[%3d] = {\n", txdesc_idx); 1143 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 1144 u[0], u[1], u[2], u[3]); 1145 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 1146 u[4], u[5], u[6], u[7]); 1147 seq_printf(s, " SKB = 0x%p\n", skb); 1148 1149 if (skb) { 1150 skb_get(skb); 1151 wil_seq_print_skb(s, skb); 1152 kfree_skb(skb); 1153 } 1154 seq_puts(s, "}\n"); 1155 1156 return 0; 1157 } 1158 DEFINE_SHOW_ATTRIBUTE(txdesc); 1159 1160 /*---------Tx/Rx status message------------*/ 1161 static int status_msg_show(struct seq_file *s, void *data) 1162 { 1163 struct wil6210_priv *wil = s->private; 1164 int sring_idx = dbg_sring_index; 1165 struct wil_status_ring *sring; 1166 bool tx; 1167 u32 status_msg_idx = dbg_status_msg_index; 1168 u32 *u; 1169 1170 if (sring_idx >= WIL6210_MAX_STATUS_RINGS) { 1171 seq_printf(s, "invalid status ring index %d\n", sring_idx); 1172 return 0; 1173 } 1174 1175 sring = &wil->srings[sring_idx]; 1176 tx = !sring->is_rx; 1177 1178 if (!sring->va) { 1179 seq_printf(s, "No %cX status ring\n", tx ? 'T' : 'R'); 1180 return 0; 1181 } 1182 1183 if (status_msg_idx >= sring->size) { 1184 seq_printf(s, "%cxDesc index (%d) >= size (%d)\n", 1185 tx ? 'T' : 'R', status_msg_idx, sring->size); 1186 return 0; 1187 } 1188 1189 u = sring->va + (sring->elem_size * status_msg_idx); 1190 1191 seq_printf(s, "%cx[%d][%3d] = {\n", 1192 tx ? 'T' : 'R', sring_idx, status_msg_idx); 1193 1194 seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x\n", 1195 u[0], u[1], u[2], u[3]); 1196 if (!tx && !wil->use_compressed_rx_status) 1197 seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x\n", 1198 u[4], u[5], u[6], u[7]); 1199 1200 seq_puts(s, "}\n"); 1201 1202 return 0; 1203 } 1204 DEFINE_SHOW_ATTRIBUTE(status_msg); 1205 1206 static int wil_print_rx_buff(struct seq_file *s, struct list_head *lh) 1207 { 1208 struct wil_rx_buff *it; 1209 int i = 0; 1210 1211 list_for_each_entry(it, lh, list) { 1212 if ((i % 16) == 0 && i != 0) 1213 seq_puts(s, "\n "); 1214 seq_printf(s, "[%4d] ", it->id); 1215 i++; 1216 } 1217 seq_printf(s, "\nNumber of buffers: %u\n", i); 1218 1219 return i; 1220 } 1221 1222 static int rx_buff_mgmt_show(struct seq_file *s, void *data) 1223 { 1224 struct wil6210_priv *wil = s->private; 1225 struct wil_rx_buff_mgmt *rbm = &wil->rx_buff_mgmt; 1226 int num_active; 1227 int num_free; 1228 1229 if (!rbm->buff_arr) 1230 return -EINVAL; 1231 1232 seq_printf(s, " size = %zu\n", rbm->size); 1233 seq_printf(s, " free_list_empty_cnt = %lu\n", 1234 rbm->free_list_empty_cnt); 1235 1236 /* Print active list */ 1237 seq_puts(s, " Active list:\n"); 1238 num_active = wil_print_rx_buff(s, &rbm->active); 1239 seq_puts(s, "\n Free list:\n"); 1240 num_free = wil_print_rx_buff(s, &rbm->free); 1241 1242 seq_printf(s, " Total number of buffers: %u\n", 1243 num_active + num_free); 1244 1245 return 0; 1246 } 1247 DEFINE_SHOW_ATTRIBUTE(rx_buff_mgmt); 1248 1249 /*---------beamforming------------*/ 1250 static char *wil_bfstatus_str(u32 status) 1251 { 1252 switch (status) { 1253 case 0: 1254 return "Failed"; 1255 case 1: 1256 return "OK"; 1257 case 2: 1258 return "Retrying"; 1259 default: 1260 return "??"; 1261 } 1262 } 1263 1264 static bool is_all_zeros(void * const x_, size_t sz) 1265 { 1266 /* if reply is all-0, ignore this CID */ 1267 u32 *x = x_; 1268 int n; 1269 1270 for (n = 0; n < sz / sizeof(*x); n++) 1271 if (x[n]) 1272 return false; 1273 1274 return true; 1275 } 1276 1277 static int bf_show(struct seq_file *s, void *data) 1278 { 1279 int rc; 1280 int i; 1281 struct wil6210_priv *wil = s->private; 1282 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev); 1283 struct wmi_notify_req_cmd cmd = { 1284 .interval_usec = 0, 1285 }; 1286 struct { 1287 struct wmi_cmd_hdr wmi; 1288 struct wmi_notify_req_done_event evt; 1289 } __packed reply; 1290 1291 memset(&reply, 0, sizeof(reply)); 1292 1293 for (i = 0; i < wil->max_assoc_sta; i++) { 1294 u32 status; 1295 1296 cmd.cid = i; 1297 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, vif->mid, 1298 &cmd, sizeof(cmd), 1299 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1300 sizeof(reply), 20); 1301 /* if reply is all-0, ignore this CID */ 1302 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1303 continue; 1304 1305 status = le32_to_cpu(reply.evt.status); 1306 seq_printf(s, "CID %d {\n" 1307 " TSF = 0x%016llx\n" 1308 " TxMCS = %2d TxTpt = %4d\n" 1309 " SQI = %4d\n" 1310 " RSSI = %4d\n" 1311 " Status = 0x%08x %s\n" 1312 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1313 " Goodput(rx:tx) %4d:%4d\n" 1314 "}\n", 1315 i, 1316 le64_to_cpu(reply.evt.tsf), 1317 le16_to_cpu(reply.evt.bf_mcs), 1318 le32_to_cpu(reply.evt.tx_tpt), 1319 reply.evt.sqi, 1320 reply.evt.rssi, 1321 status, wil_bfstatus_str(status), 1322 le16_to_cpu(reply.evt.my_rx_sector), 1323 le16_to_cpu(reply.evt.my_tx_sector), 1324 le16_to_cpu(reply.evt.other_rx_sector), 1325 le16_to_cpu(reply.evt.other_tx_sector), 1326 le32_to_cpu(reply.evt.rx_goodput), 1327 le32_to_cpu(reply.evt.tx_goodput)); 1328 } 1329 return 0; 1330 } 1331 DEFINE_SHOW_ATTRIBUTE(bf); 1332 1333 /*---------temp------------*/ 1334 static void print_temp(struct seq_file *s, const char *prefix, s32 t) 1335 { 1336 switch (t) { 1337 case 0: 1338 case ~(u32)0: 1339 seq_printf(s, "%s N/A\n", prefix); 1340 break; 1341 default: 1342 seq_printf(s, "%s %s%d.%03d\n", prefix, (t < 0 ? "-" : ""), 1343 abs(t / 1000), abs(t % 1000)); 1344 break; 1345 } 1346 } 1347 1348 static int temp_show(struct seq_file *s, void *data) 1349 { 1350 struct wil6210_priv *wil = s->private; 1351 s32 t_m, t_r; 1352 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1353 1354 if (rc) { 1355 seq_puts(s, "Failed\n"); 1356 return 0; 1357 } 1358 1359 print_temp(s, "T_mac =", t_m); 1360 print_temp(s, "T_radio =", t_r); 1361 1362 return 0; 1363 } 1364 DEFINE_SHOW_ATTRIBUTE(temp); 1365 1366 /*---------freq------------*/ 1367 static int freq_show(struct seq_file *s, void *data) 1368 { 1369 struct wil6210_priv *wil = s->private; 1370 struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr; 1371 u32 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1372 1373 seq_printf(s, "Freq = %d\n", freq); 1374 1375 return 0; 1376 } 1377 DEFINE_SHOW_ATTRIBUTE(freq); 1378 1379 /*---------link------------*/ 1380 static int link_show(struct seq_file *s, void *data) 1381 { 1382 struct wil6210_priv *wil = s->private; 1383 struct station_info *sinfo; 1384 int i, rc = 0; 1385 1386 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL); 1387 if (!sinfo) 1388 return -ENOMEM; 1389 1390 for (i = 0; i < wil->max_assoc_sta; i++) { 1391 struct wil_sta_info *p = &wil->sta[i]; 1392 char *status = "unknown"; 1393 struct wil6210_vif *vif; 1394 u8 mid; 1395 1396 switch (p->status) { 1397 case wil_sta_unused: 1398 status = "unused "; 1399 break; 1400 case wil_sta_conn_pending: 1401 status = "pending "; 1402 break; 1403 case wil_sta_connected: 1404 status = "connected"; 1405 break; 1406 } 1407 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX; 1408 seq_printf(s, "[%d][MID %d] %pM %s\n", 1409 i, mid, p->addr, status); 1410 1411 if (p->status != wil_sta_connected) 1412 continue; 1413 1414 vif = (mid < GET_MAX_VIFS(wil)) ? wil->vifs[mid] : NULL; 1415 if (vif) { 1416 rc = wil_cid_fill_sinfo(vif, i, sinfo); 1417 if (rc) 1418 goto out; 1419 1420 seq_printf(s, " Tx_mcs = %d\n", sinfo->txrate.mcs); 1421 seq_printf(s, " Rx_mcs = %d\n", sinfo->rxrate.mcs); 1422 seq_printf(s, " SQ = %d\n", sinfo->signal); 1423 } else { 1424 seq_puts(s, " INVALID MID\n"); 1425 } 1426 } 1427 1428 out: 1429 kfree(sinfo); 1430 return rc; 1431 } 1432 DEFINE_SHOW_ATTRIBUTE(link); 1433 1434 /*---------info------------*/ 1435 static int info_show(struct seq_file *s, void *data) 1436 { 1437 struct wil6210_priv *wil = s->private; 1438 struct net_device *ndev = wil->main_ndev; 1439 int is_ac = power_supply_is_system_supplied(); 1440 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1441 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1442 static ulong rxf_old, txf_old; 1443 ulong rxf = ndev->stats.rx_packets; 1444 ulong txf = ndev->stats.tx_packets; 1445 unsigned int i; 1446 1447 /* >0 : AC; 0 : battery; <0 : error */ 1448 seq_printf(s, "AC powered : %d\n", is_ac); 1449 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1450 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1451 rxf_old = rxf; 1452 txf_old = txf; 1453 1454 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1455 " " __stringify(x) : "" 1456 1457 for (i = 0; i < ndev->num_tx_queues; i++) { 1458 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1459 unsigned long state = txq->state; 1460 1461 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1462 CHECK_QSTATE(DRV_XOFF), 1463 CHECK_QSTATE(STACK_XOFF), 1464 CHECK_QSTATE(FROZEN) 1465 ); 1466 } 1467 #undef CHECK_QSTATE 1468 return 0; 1469 } 1470 DEFINE_SHOW_ATTRIBUTE(info); 1471 1472 /*---------recovery------------*/ 1473 /* mode = [manual|auto] 1474 * state = [idle|pending|running] 1475 */ 1476 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1477 size_t count, loff_t *ppos) 1478 { 1479 struct wil6210_priv *wil = file->private_data; 1480 char buf[80]; 1481 int n; 1482 static const char * const sstate[] = {"idle", "pending", "running"}; 1483 1484 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1485 no_fw_recovery ? "manual" : "auto", 1486 sstate[wil->recovery_state]); 1487 1488 n = min_t(int, n, sizeof(buf)); 1489 1490 return simple_read_from_buffer(user_buf, count, ppos, 1491 buf, n); 1492 } 1493 1494 static ssize_t wil_write_file_recovery(struct file *file, 1495 const char __user *buf_, 1496 size_t count, loff_t *ppos) 1497 { 1498 struct wil6210_priv *wil = file->private_data; 1499 static const char run_command[] = "run"; 1500 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1501 ssize_t rc; 1502 1503 if (wil->recovery_state != fw_recovery_pending) { 1504 wil_err(wil, "No recovery pending\n"); 1505 return -EINVAL; 1506 } 1507 1508 if (*ppos != 0) { 1509 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1510 return -EINVAL; 1511 } 1512 1513 if (count > sizeof(buf)) { 1514 wil_err(wil, "Input too long, len = %d\n", (int)count); 1515 return -EINVAL; 1516 } 1517 1518 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1519 if (rc < 0) 1520 return rc; 1521 1522 buf[rc] = '\0'; 1523 if (0 == strcmp(buf, run_command)) 1524 wil_set_recovery_state(wil, fw_recovery_running); 1525 else 1526 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1527 1528 return rc; 1529 } 1530 1531 static const struct file_operations fops_recovery = { 1532 .read = wil_read_file_recovery, 1533 .write = wil_write_file_recovery, 1534 .open = simple_open, 1535 }; 1536 1537 /*---------Station matrix------------*/ 1538 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1539 { 1540 int i; 1541 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1542 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1543 unsigned long long drop_dup_mcast = r->drop_dup_mcast; 1544 1545 seq_printf(s, "([%2d]) 0x%03x [", r->buf_size, r->head_seq_num); 1546 for (i = 0; i < r->buf_size; i++) { 1547 if (i == index) 1548 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1549 else 1550 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1551 } 1552 seq_printf(s, 1553 "] total %llu drop %llu (dup %llu + old %llu + dup mcast %llu) last 0x%03x\n", 1554 r->total, drop_dup + drop_old + drop_dup_mcast, drop_dup, 1555 drop_old, drop_dup_mcast, r->ssn_last_drop); 1556 } 1557 1558 static void wil_print_rxtid_crypto(struct seq_file *s, int tid, 1559 struct wil_tid_crypto_rx *c) 1560 { 1561 int i; 1562 1563 for (i = 0; i < 4; i++) { 1564 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1565 1566 if (cc->key_set) 1567 goto has_keys; 1568 } 1569 return; 1570 1571 has_keys: 1572 if (tid < WIL_STA_TID_NUM) 1573 seq_printf(s, " [%2d] PN", tid); 1574 else 1575 seq_puts(s, " [GR] PN"); 1576 1577 for (i = 0; i < 4; i++) { 1578 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1579 1580 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", 1581 cc->pn); 1582 } 1583 seq_puts(s, "\n"); 1584 } 1585 1586 static int sta_show(struct seq_file *s, void *data) 1587 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1588 { 1589 struct wil6210_priv *wil = s->private; 1590 int i, tid, mcs; 1591 1592 for (i = 0; i < wil->max_assoc_sta; i++) { 1593 struct wil_sta_info *p = &wil->sta[i]; 1594 char *status = "unknown"; 1595 u8 aid = 0; 1596 u8 mid; 1597 bool sta_connected = false; 1598 1599 switch (p->status) { 1600 case wil_sta_unused: 1601 status = "unused "; 1602 break; 1603 case wil_sta_conn_pending: 1604 status = "pending "; 1605 break; 1606 case wil_sta_connected: 1607 status = "connected"; 1608 aid = p->aid; 1609 break; 1610 } 1611 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX; 1612 if (mid < GET_MAX_VIFS(wil)) { 1613 struct wil6210_vif *vif = wil->vifs[mid]; 1614 1615 if (vif->wdev.iftype == NL80211_IFTYPE_STATION && 1616 p->status == wil_sta_connected) 1617 sta_connected = true; 1618 } 1619 /* print roam counter only for connected stations */ 1620 if (sta_connected) 1621 seq_printf(s, "[%d] %pM connected (roam counter %d) MID %d AID %d\n", 1622 i, p->addr, p->stats.ft_roams, mid, aid); 1623 else 1624 seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i, 1625 p->addr, status, mid, aid); 1626 1627 if (p->status == wil_sta_connected) { 1628 spin_lock_bh(&p->tid_rx_lock); 1629 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1630 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1631 struct wil_tid_crypto_rx *c = 1632 &p->tid_crypto_rx[tid]; 1633 1634 if (r) { 1635 seq_printf(s, " [%2d] ", tid); 1636 wil_print_rxtid(s, r); 1637 } 1638 1639 wil_print_rxtid_crypto(s, tid, c); 1640 } 1641 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, 1642 &p->group_crypto_rx); 1643 spin_unlock_bh(&p->tid_rx_lock); 1644 seq_printf(s, 1645 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", 1646 p->stats.rx_non_data_frame, 1647 p->stats.rx_short_frame, 1648 p->stats.rx_large_frame, 1649 p->stats.rx_replay); 1650 seq_printf(s, 1651 "mic error %lu, key error %lu, amsdu error %lu, csum error %lu\n", 1652 p->stats.rx_mic_error, 1653 p->stats.rx_key_error, 1654 p->stats.rx_amsdu_error, 1655 p->stats.rx_csum_err); 1656 1657 seq_puts(s, "Rx/MCS:"); 1658 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1659 mcs++) 1660 seq_printf(s, " %lld", 1661 p->stats.rx_per_mcs[mcs]); 1662 seq_puts(s, "\n"); 1663 } 1664 } 1665 1666 return 0; 1667 } 1668 DEFINE_SHOW_ATTRIBUTE(sta); 1669 1670 static int mids_show(struct seq_file *s, void *data) 1671 { 1672 struct wil6210_priv *wil = s->private; 1673 struct wil6210_vif *vif; 1674 struct net_device *ndev; 1675 int i; 1676 1677 mutex_lock(&wil->vif_mutex); 1678 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1679 vif = wil->vifs[i]; 1680 1681 if (vif) { 1682 ndev = vif_to_ndev(vif); 1683 seq_printf(s, "[%d] %pM %s\n", i, ndev->dev_addr, 1684 ndev->name); 1685 } else { 1686 seq_printf(s, "[%d] unused\n", i); 1687 } 1688 } 1689 mutex_unlock(&wil->vif_mutex); 1690 1691 return 0; 1692 } 1693 DEFINE_SHOW_ATTRIBUTE(mids); 1694 1695 static int wil_tx_latency_debugfs_show(struct seq_file *s, void *data) 1696 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1697 { 1698 struct wil6210_priv *wil = s->private; 1699 int i, bin; 1700 1701 for (i = 0; i < wil->max_assoc_sta; i++) { 1702 struct wil_sta_info *p = &wil->sta[i]; 1703 char *status = "unknown"; 1704 u8 aid = 0; 1705 u8 mid; 1706 1707 if (!p->tx_latency_bins) 1708 continue; 1709 1710 switch (p->status) { 1711 case wil_sta_unused: 1712 status = "unused "; 1713 break; 1714 case wil_sta_conn_pending: 1715 status = "pending "; 1716 break; 1717 case wil_sta_connected: 1718 status = "connected"; 1719 aid = p->aid; 1720 break; 1721 } 1722 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX; 1723 seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i, p->addr, status, 1724 mid, aid); 1725 1726 if (p->status == wil_sta_connected) { 1727 u64 num_packets = 0; 1728 u64 tx_latency_avg = p->stats.tx_latency_total_us; 1729 1730 seq_puts(s, "Tx/Latency bin:"); 1731 for (bin = 0; bin < WIL_NUM_LATENCY_BINS; bin++) { 1732 seq_printf(s, " %lld", 1733 p->tx_latency_bins[bin]); 1734 num_packets += p->tx_latency_bins[bin]; 1735 } 1736 seq_puts(s, "\n"); 1737 if (!num_packets) 1738 continue; 1739 do_div(tx_latency_avg, num_packets); 1740 seq_printf(s, "Tx/Latency min/avg/max (us): %d/%lld/%d", 1741 p->stats.tx_latency_min_us, 1742 tx_latency_avg, 1743 p->stats.tx_latency_max_us); 1744 1745 seq_puts(s, "\n"); 1746 } 1747 } 1748 1749 return 0; 1750 } 1751 1752 static int wil_tx_latency_seq_open(struct inode *inode, struct file *file) 1753 { 1754 return single_open(file, wil_tx_latency_debugfs_show, 1755 inode->i_private); 1756 } 1757 1758 static ssize_t wil_tx_latency_write(struct file *file, const char __user *buf, 1759 size_t len, loff_t *ppos) 1760 { 1761 struct seq_file *s = file->private_data; 1762 struct wil6210_priv *wil = s->private; 1763 int val, rc, i; 1764 bool enable; 1765 1766 rc = kstrtoint_from_user(buf, len, 0, &val); 1767 if (rc) { 1768 wil_err(wil, "Invalid argument\n"); 1769 return rc; 1770 } 1771 if (val == 1) 1772 /* default resolution */ 1773 val = 500; 1774 if (val && (val < 50 || val > 1000)) { 1775 wil_err(wil, "Invalid resolution %d\n", val); 1776 return -EINVAL; 1777 } 1778 1779 enable = !!val; 1780 if (wil->tx_latency == enable) 1781 return len; 1782 1783 wil_info(wil, "%s TX latency measurements (resolution %dusec)\n", 1784 enable ? "Enabling" : "Disabling", val); 1785 1786 if (enable) { 1787 size_t sz = sizeof(u64) * WIL_NUM_LATENCY_BINS; 1788 1789 wil->tx_latency_res = val; 1790 for (i = 0; i < wil->max_assoc_sta; i++) { 1791 struct wil_sta_info *sta = &wil->sta[i]; 1792 1793 kfree(sta->tx_latency_bins); 1794 sta->tx_latency_bins = kzalloc(sz, GFP_KERNEL); 1795 if (!sta->tx_latency_bins) 1796 return -ENOMEM; 1797 sta->stats.tx_latency_min_us = U32_MAX; 1798 sta->stats.tx_latency_max_us = 0; 1799 sta->stats.tx_latency_total_us = 0; 1800 } 1801 } 1802 wil->tx_latency = enable; 1803 1804 return len; 1805 } 1806 1807 static const struct file_operations fops_tx_latency = { 1808 .open = wil_tx_latency_seq_open, 1809 .release = single_release, 1810 .read = seq_read, 1811 .write = wil_tx_latency_write, 1812 .llseek = seq_lseek, 1813 }; 1814 1815 static void wil_link_stats_print_basic(struct wil6210_vif *vif, 1816 struct seq_file *s, 1817 struct wmi_link_stats_basic *basic) 1818 { 1819 char per[5] = "?"; 1820 1821 if (basic->per_average != 0xff) 1822 snprintf(per, sizeof(per), "%d%%", basic->per_average); 1823 1824 seq_printf(s, "CID %d {\n" 1825 "\tTxMCS %d TxTpt %d\n" 1826 "\tGoodput(rx:tx) %d:%d\n" 1827 "\tRxBcastFrames %d\n" 1828 "\tRSSI %d SQI %d SNR %d PER %s\n" 1829 "\tRx RFC %d Ant num %d\n" 1830 "\tSectors(rx:tx) my %d:%d peer %d:%d\n" 1831 "}\n", 1832 basic->cid, 1833 basic->bf_mcs, le32_to_cpu(basic->tx_tpt), 1834 le32_to_cpu(basic->rx_goodput), 1835 le32_to_cpu(basic->tx_goodput), 1836 le32_to_cpu(basic->rx_bcast_frames), 1837 basic->rssi, basic->sqi, basic->snr, per, 1838 basic->selected_rfc, basic->rx_effective_ant_num, 1839 basic->my_rx_sector, basic->my_tx_sector, 1840 basic->other_rx_sector, basic->other_tx_sector); 1841 } 1842 1843 static void wil_link_stats_print_global(struct wil6210_priv *wil, 1844 struct seq_file *s, 1845 struct wmi_link_stats_global *global) 1846 { 1847 seq_printf(s, "Frames(rx:tx) %d:%d\n" 1848 "BA Frames(rx:tx) %d:%d\n" 1849 "Beacons %d\n" 1850 "Rx Errors (MIC:CRC) %d:%d\n" 1851 "Tx Errors (no ack) %d\n", 1852 le32_to_cpu(global->rx_frames), 1853 le32_to_cpu(global->tx_frames), 1854 le32_to_cpu(global->rx_ba_frames), 1855 le32_to_cpu(global->tx_ba_frames), 1856 le32_to_cpu(global->tx_beacons), 1857 le32_to_cpu(global->rx_mic_errors), 1858 le32_to_cpu(global->rx_crc_errors), 1859 le32_to_cpu(global->tx_fail_no_ack)); 1860 } 1861 1862 static void wil_link_stats_debugfs_show_vif(struct wil6210_vif *vif, 1863 struct seq_file *s) 1864 { 1865 struct wil6210_priv *wil = vif_to_wil(vif); 1866 struct wmi_link_stats_basic *stats; 1867 int i; 1868 1869 if (!vif->fw_stats_ready) { 1870 seq_puts(s, "no statistics\n"); 1871 return; 1872 } 1873 1874 seq_printf(s, "TSF %lld\n", vif->fw_stats_tsf); 1875 for (i = 0; i < wil->max_assoc_sta; i++) { 1876 if (wil->sta[i].status == wil_sta_unused) 1877 continue; 1878 if (wil->sta[i].mid != vif->mid) 1879 continue; 1880 1881 stats = &wil->sta[i].fw_stats_basic; 1882 wil_link_stats_print_basic(vif, s, stats); 1883 } 1884 } 1885 1886 static int wil_link_stats_debugfs_show(struct seq_file *s, void *data) 1887 { 1888 struct wil6210_priv *wil = s->private; 1889 struct wil6210_vif *vif; 1890 int i, rc; 1891 1892 rc = mutex_lock_interruptible(&wil->vif_mutex); 1893 if (rc) 1894 return rc; 1895 1896 /* iterate over all MIDs and show per-cid statistics. Then show the 1897 * global statistics 1898 */ 1899 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1900 vif = wil->vifs[i]; 1901 1902 seq_printf(s, "MID %d ", i); 1903 if (!vif) { 1904 seq_puts(s, "unused\n"); 1905 continue; 1906 } 1907 1908 wil_link_stats_debugfs_show_vif(vif, s); 1909 } 1910 1911 mutex_unlock(&wil->vif_mutex); 1912 1913 return 0; 1914 } 1915 1916 static int wil_link_stats_seq_open(struct inode *inode, struct file *file) 1917 { 1918 return single_open(file, wil_link_stats_debugfs_show, inode->i_private); 1919 } 1920 1921 static ssize_t wil_link_stats_write(struct file *file, const char __user *buf, 1922 size_t len, loff_t *ppos) 1923 { 1924 struct seq_file *s = file->private_data; 1925 struct wil6210_priv *wil = s->private; 1926 int cid, interval, rc, i; 1927 struct wil6210_vif *vif; 1928 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 1929 1930 if (!kbuf) 1931 return -ENOMEM; 1932 1933 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 1934 if (rc != len) { 1935 kfree(kbuf); 1936 return rc >= 0 ? -EIO : rc; 1937 } 1938 1939 kbuf[len] = '\0'; 1940 /* specify cid (use -1 for all cids) and snapshot interval in ms */ 1941 rc = sscanf(kbuf, "%d %d", &cid, &interval); 1942 kfree(kbuf); 1943 if (rc < 0) 1944 return rc; 1945 if (rc < 2 || interval < 0) 1946 return -EINVAL; 1947 1948 wil_info(wil, "request link statistics, cid %d interval %d\n", 1949 cid, interval); 1950 1951 rc = mutex_lock_interruptible(&wil->vif_mutex); 1952 if (rc) 1953 return rc; 1954 1955 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1956 vif = wil->vifs[i]; 1957 if (!vif) 1958 continue; 1959 1960 rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_BASIC, 1961 (cid == -1 ? 0xff : cid), interval); 1962 if (rc) 1963 wil_err(wil, "link statistics failed for mid %d\n", i); 1964 } 1965 mutex_unlock(&wil->vif_mutex); 1966 1967 return len; 1968 } 1969 1970 static const struct file_operations fops_link_stats = { 1971 .open = wil_link_stats_seq_open, 1972 .release = single_release, 1973 .read = seq_read, 1974 .write = wil_link_stats_write, 1975 .llseek = seq_lseek, 1976 }; 1977 1978 static int 1979 wil_link_stats_global_debugfs_show(struct seq_file *s, void *data) 1980 { 1981 struct wil6210_priv *wil = s->private; 1982 1983 if (!wil->fw_stats_global.ready) 1984 return 0; 1985 1986 seq_printf(s, "TSF %lld\n", wil->fw_stats_global.tsf); 1987 wil_link_stats_print_global(wil, s, &wil->fw_stats_global.stats); 1988 1989 return 0; 1990 } 1991 1992 static int 1993 wil_link_stats_global_seq_open(struct inode *inode, struct file *file) 1994 { 1995 return single_open(file, wil_link_stats_global_debugfs_show, 1996 inode->i_private); 1997 } 1998 1999 static ssize_t 2000 wil_link_stats_global_write(struct file *file, const char __user *buf, 2001 size_t len, loff_t *ppos) 2002 { 2003 struct seq_file *s = file->private_data; 2004 struct wil6210_priv *wil = s->private; 2005 int interval, rc; 2006 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev); 2007 2008 /* specify snapshot interval in ms */ 2009 rc = kstrtoint_from_user(buf, len, 0, &interval); 2010 if (rc || interval < 0) { 2011 wil_err(wil, "Invalid argument\n"); 2012 return -EINVAL; 2013 } 2014 2015 wil_info(wil, "request global link stats, interval %d\n", interval); 2016 2017 rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_GLOBAL, 0, interval); 2018 if (rc) 2019 wil_err(wil, "global link stats failed %d\n", rc); 2020 2021 return rc ? rc : len; 2022 } 2023 2024 static const struct file_operations fops_link_stats_global = { 2025 .open = wil_link_stats_global_seq_open, 2026 .release = single_release, 2027 .read = seq_read, 2028 .write = wil_link_stats_global_write, 2029 .llseek = seq_lseek, 2030 }; 2031 2032 static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf, 2033 size_t count, loff_t *ppos) 2034 { 2035 char buf[80]; 2036 int n; 2037 2038 n = snprintf(buf, sizeof(buf), 2039 "led_id is set to %d, echo 1 to enable, 0 to disable\n", 2040 led_id); 2041 2042 n = min_t(int, n, sizeof(buf)); 2043 2044 return simple_read_from_buffer(user_buf, count, ppos, 2045 buf, n); 2046 } 2047 2048 static ssize_t wil_write_file_led_cfg(struct file *file, 2049 const char __user *buf_, 2050 size_t count, loff_t *ppos) 2051 { 2052 struct wil6210_priv *wil = file->private_data; 2053 int val; 2054 int rc; 2055 2056 rc = kstrtoint_from_user(buf_, count, 0, &val); 2057 if (rc) { 2058 wil_err(wil, "Invalid argument\n"); 2059 return rc; 2060 } 2061 2062 wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id); 2063 rc = wmi_led_cfg(wil, val); 2064 if (rc) { 2065 wil_info(wil, "%s led %d failed\n", 2066 val ? "Enabling" : "Disabling", led_id); 2067 return rc; 2068 } 2069 2070 return count; 2071 } 2072 2073 static const struct file_operations fops_led_cfg = { 2074 .read = wil_read_file_led_cfg, 2075 .write = wil_write_file_led_cfg, 2076 .open = simple_open, 2077 }; 2078 2079 /* led_blink_time, write: 2080 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast> 2081 */ 2082 static ssize_t wil_write_led_blink_time(struct file *file, 2083 const char __user *buf, 2084 size_t len, loff_t *ppos) 2085 { 2086 int rc; 2087 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 2088 2089 if (!kbuf) 2090 return -ENOMEM; 2091 2092 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 2093 if (rc != len) { 2094 kfree(kbuf); 2095 return rc >= 0 ? -EIO : rc; 2096 } 2097 2098 kbuf[len] = '\0'; 2099 rc = sscanf(kbuf, "%d %d %d %d %d %d", 2100 &led_blink_time[WIL_LED_TIME_SLOW].on_ms, 2101 &led_blink_time[WIL_LED_TIME_SLOW].off_ms, 2102 &led_blink_time[WIL_LED_TIME_MED].on_ms, 2103 &led_blink_time[WIL_LED_TIME_MED].off_ms, 2104 &led_blink_time[WIL_LED_TIME_FAST].on_ms, 2105 &led_blink_time[WIL_LED_TIME_FAST].off_ms); 2106 kfree(kbuf); 2107 2108 if (rc < 0) 2109 return rc; 2110 if (rc < 6) 2111 return -EINVAL; 2112 2113 return len; 2114 } 2115 2116 static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf, 2117 size_t count, loff_t *ppos) 2118 { 2119 static char text[400]; 2120 2121 snprintf(text, sizeof(text), 2122 "To set led blink on/off time variables write:\n" 2123 "<blink_on_slow> <blink_off_slow> <blink_on_med> " 2124 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n" 2125 "The current values are:\n" 2126 "%d %d %d %d %d %d\n", 2127 led_blink_time[WIL_LED_TIME_SLOW].on_ms, 2128 led_blink_time[WIL_LED_TIME_SLOW].off_ms, 2129 led_blink_time[WIL_LED_TIME_MED].on_ms, 2130 led_blink_time[WIL_LED_TIME_MED].off_ms, 2131 led_blink_time[WIL_LED_TIME_FAST].on_ms, 2132 led_blink_time[WIL_LED_TIME_FAST].off_ms); 2133 2134 return simple_read_from_buffer(user_buf, count, ppos, text, 2135 sizeof(text)); 2136 } 2137 2138 static const struct file_operations fops_led_blink_time = { 2139 .read = wil_read_led_blink_time, 2140 .write = wil_write_led_blink_time, 2141 .open = simple_open, 2142 }; 2143 2144 /*---------FW capabilities------------*/ 2145 static int wil_fw_capabilities_debugfs_show(struct seq_file *s, void *data) 2146 { 2147 struct wil6210_priv *wil = s->private; 2148 2149 seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX, 2150 wil->fw_capabilities); 2151 2152 return 0; 2153 } 2154 2155 static int wil_fw_capabilities_seq_open(struct inode *inode, struct file *file) 2156 { 2157 return single_open(file, wil_fw_capabilities_debugfs_show, 2158 inode->i_private); 2159 } 2160 2161 static const struct file_operations fops_fw_capabilities = { 2162 .open = wil_fw_capabilities_seq_open, 2163 .release = single_release, 2164 .read = seq_read, 2165 .llseek = seq_lseek, 2166 }; 2167 2168 /*---------FW version------------*/ 2169 static int wil_fw_version_debugfs_show(struct seq_file *s, void *data) 2170 { 2171 struct wil6210_priv *wil = s->private; 2172 2173 if (wil->fw_version[0]) 2174 seq_printf(s, "%s\n", wil->fw_version); 2175 else 2176 seq_puts(s, "N/A\n"); 2177 2178 return 0; 2179 } 2180 2181 static int wil_fw_version_seq_open(struct inode *inode, struct file *file) 2182 { 2183 return single_open(file, wil_fw_version_debugfs_show, 2184 inode->i_private); 2185 } 2186 2187 static const struct file_operations fops_fw_version = { 2188 .open = wil_fw_version_seq_open, 2189 .release = single_release, 2190 .read = seq_read, 2191 .llseek = seq_lseek, 2192 }; 2193 2194 /*---------suspend_stats---------*/ 2195 static ssize_t wil_write_suspend_stats(struct file *file, 2196 const char __user *buf, 2197 size_t len, loff_t *ppos) 2198 { 2199 struct wil6210_priv *wil = file->private_data; 2200 2201 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats)); 2202 2203 return len; 2204 } 2205 2206 static ssize_t wil_read_suspend_stats(struct file *file, 2207 char __user *user_buf, 2208 size_t count, loff_t *ppos) 2209 { 2210 struct wil6210_priv *wil = file->private_data; 2211 char *text; 2212 int n, ret, text_size = 500; 2213 2214 text = kmalloc(text_size, GFP_KERNEL); 2215 if (!text) 2216 return -ENOMEM; 2217 2218 n = snprintf(text, text_size, 2219 "Radio on suspend statistics:\n" 2220 "successful suspends:%ld failed suspends:%ld\n" 2221 "successful resumes:%ld failed resumes:%ld\n" 2222 "rejected by device:%ld\n" 2223 "Radio off suspend statistics:\n" 2224 "successful suspends:%ld failed suspends:%ld\n" 2225 "successful resumes:%ld failed resumes:%ld\n" 2226 "General statistics:\n" 2227 "rejected by host:%ld\n", 2228 wil->suspend_stats.r_on.successful_suspends, 2229 wil->suspend_stats.r_on.failed_suspends, 2230 wil->suspend_stats.r_on.successful_resumes, 2231 wil->suspend_stats.r_on.failed_resumes, 2232 wil->suspend_stats.rejected_by_device, 2233 wil->suspend_stats.r_off.successful_suspends, 2234 wil->suspend_stats.r_off.failed_suspends, 2235 wil->suspend_stats.r_off.successful_resumes, 2236 wil->suspend_stats.r_off.failed_resumes, 2237 wil->suspend_stats.rejected_by_host); 2238 2239 n = min_t(int, n, text_size); 2240 2241 ret = simple_read_from_buffer(user_buf, count, ppos, text, n); 2242 2243 kfree(text); 2244 2245 return ret; 2246 } 2247 2248 static const struct file_operations fops_suspend_stats = { 2249 .read = wil_read_suspend_stats, 2250 .write = wil_write_suspend_stats, 2251 .open = simple_open, 2252 }; 2253 2254 /*---------compressed_rx_status---------*/ 2255 static ssize_t wil_compressed_rx_status_write(struct file *file, 2256 const char __user *buf, 2257 size_t len, loff_t *ppos) 2258 { 2259 struct seq_file *s = file->private_data; 2260 struct wil6210_priv *wil = s->private; 2261 int compressed_rx_status; 2262 int rc; 2263 2264 rc = kstrtoint_from_user(buf, len, 0, &compressed_rx_status); 2265 if (rc) { 2266 wil_err(wil, "Invalid argument\n"); 2267 return rc; 2268 } 2269 2270 if (wil_has_active_ifaces(wil, true, false)) { 2271 wil_err(wil, "cannot change edma config after iface is up\n"); 2272 return -EPERM; 2273 } 2274 2275 wil_info(wil, "%sable compressed_rx_status\n", 2276 compressed_rx_status ? "En" : "Dis"); 2277 2278 wil->use_compressed_rx_status = compressed_rx_status; 2279 2280 return len; 2281 } 2282 2283 static int 2284 wil_compressed_rx_status_show(struct seq_file *s, void *data) 2285 { 2286 struct wil6210_priv *wil = s->private; 2287 2288 seq_printf(s, "%d\n", wil->use_compressed_rx_status); 2289 2290 return 0; 2291 } 2292 2293 static int 2294 wil_compressed_rx_status_seq_open(struct inode *inode, struct file *file) 2295 { 2296 return single_open(file, wil_compressed_rx_status_show, 2297 inode->i_private); 2298 } 2299 2300 static const struct file_operations fops_compressed_rx_status = { 2301 .open = wil_compressed_rx_status_seq_open, 2302 .release = single_release, 2303 .read = seq_read, 2304 .write = wil_compressed_rx_status_write, 2305 .llseek = seq_lseek, 2306 }; 2307 2308 /*----------------*/ 2309 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 2310 struct dentry *dbg) 2311 { 2312 int i; 2313 char name[32]; 2314 2315 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 2316 struct wil_blob_wrapper *wil_blob = &wil->blobs[i]; 2317 struct debugfs_blob_wrapper *blob = &wil_blob->blob; 2318 const struct fw_map *map = &fw_mapping[i]; 2319 2320 if (!map->name) 2321 continue; 2322 2323 wil_blob->wil = wil; 2324 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 2325 blob->size = map->to - map->from; 2326 snprintf(name, sizeof(name), "blob_%s", map->name); 2327 wil_debugfs_create_ioblob(name, 0444, dbg, wil_blob); 2328 } 2329 } 2330 2331 /* misc files */ 2332 static const struct { 2333 const char *name; 2334 umode_t mode; 2335 const struct file_operations *fops; 2336 } dbg_files[] = { 2337 {"mbox", 0444, &mbox_fops}, 2338 {"rings", 0444, &ring_fops}, 2339 {"stations", 0444, &sta_fops}, 2340 {"mids", 0444, &mids_fops}, 2341 {"desc", 0444, &txdesc_fops}, 2342 {"bf", 0444, &bf_fops}, 2343 {"mem_val", 0644, &memread_fops}, 2344 {"rxon", 0244, &fops_rxon}, 2345 {"tx_mgmt", 0244, &fops_txmgmt}, 2346 {"wmi_send", 0244, &fops_wmi}, 2347 {"back", 0644, &fops_back}, 2348 {"pmccfg", 0644, &fops_pmccfg}, 2349 {"pmcdata", 0444, &fops_pmcdata}, 2350 {"temp", 0444, &temp_fops}, 2351 {"freq", 0444, &freq_fops}, 2352 {"link", 0444, &link_fops}, 2353 {"info", 0444, &info_fops}, 2354 {"recovery", 0644, &fops_recovery}, 2355 {"led_cfg", 0644, &fops_led_cfg}, 2356 {"led_blink_time", 0644, &fops_led_blink_time}, 2357 {"fw_capabilities", 0444, &fops_fw_capabilities}, 2358 {"fw_version", 0444, &fops_fw_version}, 2359 {"suspend_stats", 0644, &fops_suspend_stats}, 2360 {"compressed_rx_status", 0644, &fops_compressed_rx_status}, 2361 {"srings", 0444, &srings_fops}, 2362 {"status_msg", 0444, &status_msg_fops}, 2363 {"rx_buff_mgmt", 0444, &rx_buff_mgmt_fops}, 2364 {"tx_latency", 0644, &fops_tx_latency}, 2365 {"link_stats", 0644, &fops_link_stats}, 2366 {"link_stats_global", 0644, &fops_link_stats_global}, 2367 }; 2368 2369 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 2370 struct dentry *dbg) 2371 { 2372 int i; 2373 2374 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 2375 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 2376 wil, dbg_files[i].fops); 2377 } 2378 2379 /* interrupt control blocks */ 2380 static const struct { 2381 const char *name; 2382 u32 icr_off; 2383 } dbg_icr[] = { 2384 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 2385 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 2386 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 2387 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 2388 }; 2389 2390 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 2391 struct dentry *dbg) 2392 { 2393 int i; 2394 2395 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 2396 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 2397 dbg_icr[i].icr_off); 2398 } 2399 2400 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 2401 offsetof(struct wil6210_priv, name), type} 2402 2403 /* fields in struct wil6210_priv */ 2404 static const struct dbg_off dbg_wil_off[] = { 2405 WIL_FIELD(status[0], 0644, doff_ulong), 2406 WIL_FIELD(hw_version, 0444, doff_x32), 2407 WIL_FIELD(recovery_count, 0444, doff_u32), 2408 WIL_FIELD(discovery_mode, 0644, doff_u8), 2409 WIL_FIELD(chip_revision, 0444, doff_u8), 2410 WIL_FIELD(abft_len, 0644, doff_u8), 2411 WIL_FIELD(wakeup_trigger, 0644, doff_u8), 2412 WIL_FIELD(ring_idle_trsh, 0644, doff_u32), 2413 WIL_FIELD(num_rx_status_rings, 0644, doff_u8), 2414 WIL_FIELD(rx_status_ring_order, 0644, doff_u32), 2415 WIL_FIELD(tx_status_ring_order, 0644, doff_u32), 2416 WIL_FIELD(rx_buff_id_count, 0644, doff_u32), 2417 WIL_FIELD(amsdu_en, 0644, doff_u8), 2418 {}, 2419 }; 2420 2421 static const struct dbg_off dbg_wil_regs[] = { 2422 {"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 2423 doff_io32}, 2424 {"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 2425 {"RGF_USER_USAGE_2", 0444, HOSTADDR(RGF_USER_USAGE_2), doff_io32}, 2426 {}, 2427 }; 2428 2429 /* static parameters */ 2430 static const struct dbg_off dbg_statics[] = { 2431 {"desc_index", 0644, (ulong)&dbg_txdesc_index, doff_u32}, 2432 {"ring_index", 0644, (ulong)&dbg_ring_index, doff_u32}, 2433 {"mem_addr", 0644, (ulong)&mem_addr, doff_u32}, 2434 {"led_polarity", 0644, (ulong)&led_polarity, doff_u8}, 2435 {"status_index", 0644, (ulong)&dbg_status_msg_index, doff_u32}, 2436 {"sring_index", 0644, (ulong)&dbg_sring_index, doff_u32}, 2437 {"drop_if_ring_full", 0644, (ulong)&drop_if_ring_full, doff_u8}, 2438 {}, 2439 }; 2440 2441 static const int dbg_off_count = 4 * (ARRAY_SIZE(isr_off) - 1) + 2442 ARRAY_SIZE(dbg_wil_regs) - 1 + 2443 ARRAY_SIZE(pseudo_isr_off) - 1 + 2444 ARRAY_SIZE(lgc_itr_cnt_off) - 1 + 2445 ARRAY_SIZE(tx_itr_cnt_off) - 1 + 2446 ARRAY_SIZE(rx_itr_cnt_off) - 1; 2447 2448 int wil6210_debugfs_init(struct wil6210_priv *wil) 2449 { 2450 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 2451 wil_to_wiphy(wil)->debugfsdir); 2452 if (IS_ERR_OR_NULL(dbg)) 2453 return -ENODEV; 2454 2455 wil->dbg_data.data_arr = kcalloc(dbg_off_count, 2456 sizeof(struct wil_debugfs_iomem_data), 2457 GFP_KERNEL); 2458 if (!wil->dbg_data.data_arr) { 2459 debugfs_remove_recursive(dbg); 2460 wil->debug = NULL; 2461 return -ENOMEM; 2462 } 2463 2464 wil->dbg_data.iomem_data_count = 0; 2465 2466 wil_pmc_init(wil); 2467 2468 wil6210_debugfs_init_files(wil, dbg); 2469 wil6210_debugfs_init_isr(wil, dbg); 2470 wil6210_debugfs_init_blobs(wil, dbg); 2471 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 2472 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 2473 dbg_wil_regs); 2474 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 2475 2476 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 2477 2478 wil6210_debugfs_create_ITR_CNT(wil, dbg); 2479 2480 return 0; 2481 } 2482 2483 void wil6210_debugfs_remove(struct wil6210_priv *wil) 2484 { 2485 int i; 2486 2487 debugfs_remove_recursive(wil->debug); 2488 wil->debug = NULL; 2489 2490 kfree(wil->dbg_data.data_arr); 2491 for (i = 0; i < wil->max_assoc_sta; i++) 2492 kfree(wil->sta[i].tx_latency_bins); 2493 2494 /* free pmc memory without sending command to fw, as it will 2495 * be reset on the way down anyway 2496 */ 2497 wil_pmc_free(wil, false); 2498 } 2499