1// SPDX-License-Identifier: ISC 2/* 3 * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. 4 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. 5 */ 6 7#include <linux/module.h> 8#include <linux/debugfs.h> 9#include <linux/seq_file.h> 10#include <linux/pci.h> 11#include <linux/rtnetlink.h> 12#include <linux/power_supply.h> 13#include "wil6210.h" 14#include "wmi.h" 15#include "txrx.h" 16#include "pmc.h" 17 18/* Nasty hack. Better have per device instances */ 19static u32 mem_addr; 20static u32 dbg_txdesc_index; 21static u32 dbg_ring_index; /* 24+ for Rx, 0..23 for Tx */ 22static u32 dbg_status_msg_index; 23/* 0..wil->num_rx_status_rings-1 for Rx, wil->tx_sring_idx for Tx */ 24static u32 dbg_sring_index; 25 26enum dbg_off_type { 27 doff_u32 = 0, 28 doff_x32 = 1, 29 doff_ulong = 2, 30 doff_io32 = 3, 31 doff_u8 = 4 32}; 33 34/* offset to "wil" */ 35struct dbg_off { 36 const char *name; 37 umode_t mode; 38 ulong off; 39 enum dbg_off_type type; 40}; 41 42static void wil_print_desc_edma(struct seq_file *s, struct wil6210_priv *wil, 43 struct wil_ring *ring, 44 char _s, char _h, int idx) 45{ 46 u8 num_of_descs; 47 bool has_skb = false; 48 49 if (ring->is_rx) { 50 struct wil_rx_enhanced_desc *rx_d = 51 (struct wil_rx_enhanced_desc *) 52 &ring->va[idx].rx.enhanced; 53 u16 buff_id = le16_to_cpu(rx_d->mac.buff_id); 54 55 if (wil->rx_buff_mgmt.buff_arr && 56 wil_val_in_range(buff_id, 0, wil->rx_buff_mgmt.size)) 57 has_skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb; 58 seq_printf(s, "%c", (has_skb) ? _h : _s); 59 } else { 60 struct wil_tx_enhanced_desc *d = 61 (struct wil_tx_enhanced_desc *) 62 &ring->va[idx].tx.enhanced; 63 64 num_of_descs = (u8)d->mac.d[2]; 65 has_skb = ring->ctx && ring->ctx[idx].skb; 66 if (num_of_descs >= 1) 67 seq_printf(s, "%c", has_skb ? _h : _s); 68 else 69 /* num_of_descs == 0, it's a frag in a list of descs */ 70 seq_printf(s, "%c", has_skb ? 'h' : _s); 71 } 72} 73 74static void wil_print_ring(struct seq_file *s, struct wil6210_priv *wil, 75 const char *name, struct wil_ring *ring, 76 char _s, char _h) 77{ 78 void __iomem *x; 79 u32 v; 80 81 seq_printf(s, "RING %s = {\n", name); 82 seq_printf(s, " pa = %pad\n", &ring->pa); 83 seq_printf(s, " va = 0x%p\n", ring->va); 84 seq_printf(s, " size = %d\n", ring->size); 85 if (wil->use_enhanced_dma_hw && ring->is_rx) 86 seq_printf(s, " swtail = %u\n", *ring->edma_rx_swtail.va); 87 else 88 seq_printf(s, " swtail = %d\n", ring->swtail); 89 seq_printf(s, " swhead = %d\n", ring->swhead); 90 if (wil->use_enhanced_dma_hw) { 91 int ring_id = ring->is_rx ? 92 WIL_RX_DESC_RING_ID : ring - wil->ring_tx; 93 /* SUBQ_CONS is a table of 32 entries, one for each Q pair. 94 * lower 16bits are for even ring_id and upper 16bits are for 95 * odd ring_id 96 */ 97 x = wmi_addr(wil, RGF_DMA_SCM_SUBQ_CONS + 4 * (ring_id / 2)); 98 v = readl_relaxed(x); 99 100 v = (ring_id % 2 ? (v >> 16) : (v & 0xffff)); 101 seq_printf(s, " hwhead = %u\n", v); 102 } 103 seq_printf(s, " hwtail = [0x%08x] -> ", ring->hwtail); 104 x = wmi_addr(wil, ring->hwtail); 105 if (x) { 106 v = readl(x); 107 seq_printf(s, "0x%08x = %d\n", v, v); 108 } else { 109 seq_puts(s, "???\n"); 110 } 111 112 if (ring->va && (ring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) { 113 uint i; 114 115 for (i = 0; i < ring->size; i++) { 116 if ((i % 128) == 0 && i != 0) 117 seq_puts(s, "\n"); 118 if (wil->use_enhanced_dma_hw) { 119 wil_print_desc_edma(s, wil, ring, _s, _h, i); 120 } else { 121 volatile struct vring_tx_desc *d = 122 &ring->va[i].tx.legacy; 123 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 124 _s : (ring->ctx[i].skb ? _h : 'h')); 125 } 126 } 127 seq_puts(s, "\n"); 128 } 129 seq_puts(s, "}\n"); 130} 131 132static int ring_show(struct seq_file *s, void *data) 133{ 134 uint i; 135 struct wil6210_priv *wil = s->private; 136 137 wil_print_ring(s, wil, "rx", &wil->ring_rx, 'S', '_'); 138 139 for (i = 0; i < ARRAY_SIZE(wil->ring_tx); i++) { 140 struct wil_ring *ring = &wil->ring_tx[i]; 141 struct wil_ring_tx_data *txdata = &wil->ring_tx_data[i]; 142 143 if (ring->va) { 144 int cid = wil->ring2cid_tid[i][0]; 145 int tid = wil->ring2cid_tid[i][1]; 146 u32 swhead = ring->swhead; 147 u32 swtail = ring->swtail; 148 int used = (ring->size + swhead - swtail) 149 % ring->size; 150 int avail = ring->size - used - 1; 151 char name[10]; 152 char sidle[10]; 153 /* performance monitoring */ 154 cycles_t now = get_cycles(); 155 uint64_t idle = txdata->idle * 100; 156 uint64_t total = now - txdata->begin; 157 158 if (total != 0) { 159 do_div(idle, total); 160 snprintf(sidle, sizeof(sidle), "%3d%%", 161 (int)idle); 162 } else { 163 snprintf(sidle, sizeof(sidle), "N/A"); 164 } 165 txdata->begin = now; 166 txdata->idle = 0ULL; 167 168 snprintf(name, sizeof(name), "tx_%2d", i); 169 170 if (cid < wil->max_assoc_sta) 171 seq_printf(s, 172 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n", 173 wil->sta[cid].addr, cid, tid, 174 txdata->dot1x_open ? "+" : "-", 175 txdata->agg_wsize, 176 txdata->agg_timeout, 177 txdata->agg_amsdu ? "+" : "-", 178 used, avail, sidle); 179 else 180 seq_printf(s, 181 "\nBroadcast 1x%s [%3d|%3d] idle %s\n", 182 txdata->dot1x_open ? "+" : "-", 183 used, avail, sidle); 184 185 wil_print_ring(s, wil, name, ring, '_', 'H'); 186 } 187 } 188 189 return 0; 190} 191DEFINE_SHOW_ATTRIBUTE(ring); 192 193static void wil_print_sring(struct seq_file *s, struct wil6210_priv *wil, 194 struct wil_status_ring *sring) 195{ 196 void __iomem *x; 197 int sring_idx = sring - wil->srings; 198 u32 v; 199 200 seq_printf(s, "Status Ring %s [ %d ] = {\n", 201 sring->is_rx ? "RX" : "TX", sring_idx); 202 seq_printf(s, " pa = %pad\n", &sring->pa); 203 seq_printf(s, " va = 0x%pK\n", sring->va); 204 seq_printf(s, " size = %d\n", sring->size); 205 seq_printf(s, " elem_size = %zu\n", sring->elem_size); 206 seq_printf(s, " swhead = %d\n", sring->swhead); 207 if (wil->use_enhanced_dma_hw) { 208 /* COMPQ_PROD is a table of 32 entries, one for each Q pair. 209 * lower 16bits are for even ring_id and upper 16bits are for 210 * odd ring_id 211 */ 212 x = wmi_addr(wil, RGF_DMA_SCM_COMPQ_PROD + 4 * (sring_idx / 2)); 213 v = readl_relaxed(x); 214 215 v = (sring_idx % 2 ? (v >> 16) : (v & 0xffff)); 216 seq_printf(s, " hwhead = %u\n", v); 217 } 218 seq_printf(s, " hwtail = [0x%08x] -> ", sring->hwtail); 219 x = wmi_addr(wil, sring->hwtail); 220 if (x) { 221 v = readl_relaxed(x); 222 seq_printf(s, "0x%08x = %d\n", v, v); 223 } else { 224 seq_puts(s, "???\n"); 225 } 226 seq_printf(s, " desc_rdy_pol = %d\n", sring->desc_rdy_pol); 227 seq_printf(s, " invalid_buff_id_cnt = %d\n", 228 sring->invalid_buff_id_cnt); 229 230 if (sring->va && (sring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) { 231 uint i; 232 233 for (i = 0; i < sring->size; i++) { 234 u32 *sdword_0 = 235 (u32 *)(sring->va + (sring->elem_size * i)); 236 237 if ((i % 128) == 0 && i != 0) 238 seq_puts(s, "\n"); 239 if (i == sring->swhead) 240 seq_printf(s, "%c", (*sdword_0 & BIT(31)) ? 241 'X' : 'x'); 242 else 243 seq_printf(s, "%c", (*sdword_0 & BIT(31)) ? 244 '1' : '0'); 245 } 246 seq_puts(s, "\n"); 247 } 248 seq_puts(s, "}\n"); 249} 250 251static int srings_show(struct seq_file *s, void *data) 252{ 253 struct wil6210_priv *wil = s->private; 254 int i = 0; 255 256 for (i = 0; i < WIL6210_MAX_STATUS_RINGS; i++) 257 if (wil->srings[i].va) 258 wil_print_sring(s, wil, &wil->srings[i]); 259 260 return 0; 261} 262DEFINE_SHOW_ATTRIBUTE(srings); 263 264static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 265 const char *prefix) 266{ 267 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false); 268} 269 270static void wil_print_mbox_ring(struct seq_file *s, const char *prefix, 271 void __iomem *off) 272{ 273 struct wil6210_priv *wil = s->private; 274 struct wil6210_mbox_ring r; 275 int rsize; 276 uint i; 277 278 wil_halp_vote(wil); 279 280 if (wil_mem_access_lock(wil)) { 281 wil_halp_unvote(wil); 282 return; 283 } 284 285 wil_memcpy_fromio_32(&r, off, sizeof(r)); 286 wil_mbox_ring_le2cpus(&r); 287 /* 288 * we just read memory block from NIC. This memory may be 289 * garbage. Check validity before using it. 290 */ 291 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 292 293 seq_printf(s, "ring %s = {\n", prefix); 294 seq_printf(s, " base = 0x%08x\n", r.base); 295 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 296 seq_printf(s, " tail = 0x%08x\n", r.tail); 297 seq_printf(s, " head = 0x%08x\n", r.head); 298 seq_printf(s, " entry size = %d\n", r.entry_size); 299 300 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 301 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 302 sizeof(struct wil6210_mbox_ring_desc)); 303 goto out; 304 } 305 306 if (!wmi_addr(wil, r.base) || 307 !wmi_addr(wil, r.tail) || 308 !wmi_addr(wil, r.head)) { 309 seq_puts(s, " ??? pointers are garbage?\n"); 310 goto out; 311 } 312 313 for (i = 0; i < rsize; i++) { 314 struct wil6210_mbox_ring_desc d; 315 struct wil6210_mbox_hdr hdr; 316 size_t delta = i * sizeof(d); 317 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 318 319 wil_memcpy_fromio_32(&d, x, sizeof(d)); 320 321 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 322 d.sync ? "F" : "E", 323 (r.tail - r.base == delta) ? "t" : " ", 324 (r.head - r.base == delta) ? "h" : " ", 325 le32_to_cpu(d.addr)); 326 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 327 u16 len = le16_to_cpu(hdr.len); 328 329 seq_printf(s, " -> %04x %04x %04x %02x\n", 330 le16_to_cpu(hdr.seq), len, 331 le16_to_cpu(hdr.type), hdr.flags); 332 if (len <= MAX_MBOXITEM_SIZE) { 333 unsigned char databuf[MAX_MBOXITEM_SIZE]; 334 void __iomem *src = wmi_buffer(wil, d.addr) + 335 sizeof(struct wil6210_mbox_hdr); 336 /* 337 * No need to check @src for validity - 338 * we already validated @d.addr while 339 * reading header 340 */ 341 wil_memcpy_fromio_32(databuf, src, len); 342 wil_seq_hexdump(s, databuf, len, " : "); 343 } 344 } else { 345 seq_puts(s, "\n"); 346 } 347 } 348 out: 349 seq_puts(s, "}\n"); 350 wil_mem_access_unlock(wil); 351 wil_halp_unvote(wil); 352} 353 354static int mbox_show(struct seq_file *s, void *data) 355{ 356 struct wil6210_priv *wil = s->private; 357 int ret; 358 359 ret = wil_pm_runtime_get(wil); 360 if (ret < 0) 361 return ret; 362 363 wil_print_mbox_ring(s, "tx", wil->csr + HOST_MBOX + 364 offsetof(struct wil6210_mbox_ctl, tx)); 365 wil_print_mbox_ring(s, "rx", wil->csr + HOST_MBOX + 366 offsetof(struct wil6210_mbox_ctl, rx)); 367 368 wil_pm_runtime_put(wil); 369 370 return 0; 371} 372DEFINE_SHOW_ATTRIBUTE(mbox); 373 374static int wil_debugfs_iomem_x32_set(void *data, u64 val) 375{ 376 struct wil_debugfs_iomem_data *d = (struct 377 wil_debugfs_iomem_data *)data; 378 struct wil6210_priv *wil = d->wil; 379 int ret; 380 381 ret = wil_pm_runtime_get(wil); 382 if (ret < 0) 383 return ret; 384 385 writel_relaxed(val, (void __iomem *)d->offset); 386 387 wmb(); /* make sure write propagated to HW */ 388 389 wil_pm_runtime_put(wil); 390 391 return 0; 392} 393 394static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 395{ 396 struct wil_debugfs_iomem_data *d = (struct 397 wil_debugfs_iomem_data *)data; 398 struct wil6210_priv *wil = d->wil; 399 int ret; 400 401 ret = wil_pm_runtime_get(wil); 402 if (ret < 0) 403 return ret; 404 405 *val = readl((void __iomem *)d->offset); 406 407 wil_pm_runtime_put(wil); 408 409 return 0; 410} 411 412DEFINE_DEBUGFS_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 413 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 414 415static void wil_debugfs_create_iomem_x32(const char *name, umode_t mode, 416 struct dentry *parent, void *value, 417 struct wil6210_priv *wil) 418{ 419 struct wil_debugfs_iomem_data *data = &wil->dbg_data.data_arr[ 420 wil->dbg_data.iomem_data_count]; 421 422 data->wil = wil; 423 data->offset = value; 424 425 debugfs_create_file_unsafe(name, mode, parent, data, &fops_iomem_x32); 426 wil->dbg_data.iomem_data_count++; 427} 428 429static int wil_debugfs_ulong_set(void *data, u64 val) 430{ 431 *(ulong *)data = val; 432 return 0; 433} 434 435static int wil_debugfs_ulong_get(void *data, u64 *val) 436{ 437 *val = *(ulong *)data; 438 return 0; 439} 440 441DEFINE_DEBUGFS_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 442 wil_debugfs_ulong_set, "0x%llx\n"); 443 444/** 445 * wil6210_debugfs_init_offset - create set of debugfs files 446 * @wil: driver's context, used for printing 447 * @dbg: directory on the debugfs, where files will be created 448 * @base: base address used in address calculation 449 * @tbl: table with file descriptions. Should be terminated with empty element. 450 * 451 * Creates files accordingly to the @tbl. 452 */ 453static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 454 struct dentry *dbg, void *base, 455 const struct dbg_off * const tbl) 456{ 457 int i; 458 459 for (i = 0; tbl[i].name; i++) { 460 switch (tbl[i].type) { 461 case doff_u32: 462 debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 463 base + tbl[i].off); 464 break; 465 case doff_x32: 466 debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 467 base + tbl[i].off); 468 break; 469 case doff_ulong: 470 debugfs_create_file_unsafe(tbl[i].name, tbl[i].mode, 471 dbg, base + tbl[i].off, 472 &wil_fops_ulong); 473 break; 474 case doff_io32: 475 wil_debugfs_create_iomem_x32(tbl[i].name, tbl[i].mode, 476 dbg, base + tbl[i].off, 477 wil); 478 break; 479 case doff_u8: 480 debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg, 481 base + tbl[i].off); 482 break; 483 } 484 } 485} 486 487static const struct dbg_off isr_off[] = { 488 {"ICC", 0644, offsetof(struct RGF_ICR, ICC), doff_io32}, 489 {"ICR", 0644, offsetof(struct RGF_ICR, ICR), doff_io32}, 490 {"ICM", 0644, offsetof(struct RGF_ICR, ICM), doff_io32}, 491 {"ICS", 0244, offsetof(struct RGF_ICR, ICS), doff_io32}, 492 {"IMV", 0644, offsetof(struct RGF_ICR, IMV), doff_io32}, 493 {"IMS", 0244, offsetof(struct RGF_ICR, IMS), doff_io32}, 494 {"IMC", 0244, offsetof(struct RGF_ICR, IMC), doff_io32}, 495 {}, 496}; 497 498static void wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 499 const char *name, struct dentry *parent, 500 u32 off) 501{ 502 struct dentry *d = debugfs_create_dir(name, parent); 503 504 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 505 isr_off); 506} 507 508static const struct dbg_off pseudo_isr_off[] = { 509 {"CAUSE", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 510 {"MASK_SW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 511 {"MASK_FW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 512 {}, 513}; 514 515static void wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 516 struct dentry *parent) 517{ 518 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 519 520 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 521 pseudo_isr_off); 522} 523 524static const struct dbg_off lgc_itr_cnt_off[] = { 525 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 526 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 527 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 528 {}, 529}; 530 531static const struct dbg_off tx_itr_cnt_off[] = { 532 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 533 doff_io32}, 534 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 535 doff_io32}, 536 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 537 doff_io32}, 538 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 539 doff_io32}, 540 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 541 doff_io32}, 542 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 543 doff_io32}, 544 {}, 545}; 546 547static const struct dbg_off rx_itr_cnt_off[] = { 548 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 549 doff_io32}, 550 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 551 doff_io32}, 552 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 553 doff_io32}, 554 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 555 doff_io32}, 556 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 557 doff_io32}, 558 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 559 doff_io32}, 560 {}, 561}; 562 563static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 564 struct dentry *parent) 565{ 566 struct dentry *d, *dtx, *drx; 567 568 d = debugfs_create_dir("ITR_CNT", parent); 569 570 dtx = debugfs_create_dir("TX", d); 571 drx = debugfs_create_dir("RX", d); 572 573 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 574 lgc_itr_cnt_off); 575 576 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 577 tx_itr_cnt_off); 578 579 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 580 rx_itr_cnt_off); 581 return 0; 582} 583 584static int memread_show(struct seq_file *s, void *data) 585{ 586 struct wil6210_priv *wil = s->private; 587 void __iomem *a; 588 int ret; 589 590 ret = wil_pm_runtime_get(wil); 591 if (ret < 0) 592 return ret; 593 594 ret = wil_mem_access_lock(wil); 595 if (ret) { 596 wil_pm_runtime_put(wil); 597 return ret; 598 } 599 600 a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 601 602 if (a) 603 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a)); 604 else 605 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 606 607 wil_mem_access_unlock(wil); 608 wil_pm_runtime_put(wil); 609 610 return 0; 611} 612DEFINE_SHOW_ATTRIBUTE(memread); 613 614static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 615 size_t count, loff_t *ppos) 616{ 617 enum { max_count = 4096 }; 618 struct wil_blob_wrapper *wil_blob = file->private_data; 619 struct wil6210_priv *wil = wil_blob->wil; 620 loff_t aligned_pos, pos = *ppos; 621 size_t available = wil_blob->blob.size; 622 void *buf; 623 size_t unaligned_bytes, aligned_count, ret; 624 int rc; 625 626 if (pos < 0) 627 return -EINVAL; 628 629 if (pos >= available || !count) 630 return 0; 631 632 if (count > available - pos) 633 count = available - pos; 634 if (count > max_count) 635 count = max_count; 636 637 /* set pos to 4 bytes aligned */ 638 unaligned_bytes = pos % 4; 639 aligned_pos = pos - unaligned_bytes; 640 aligned_count = count + unaligned_bytes; 641 642 buf = kmalloc(aligned_count, GFP_KERNEL); 643 if (!buf) 644 return -ENOMEM; 645 646 rc = wil_pm_runtime_get(wil); 647 if (rc < 0) { 648 kfree(buf); 649 return rc; 650 } 651 652 rc = wil_mem_access_lock(wil); 653 if (rc) { 654 kfree(buf); 655 wil_pm_runtime_put(wil); 656 return rc; 657 } 658 659 wil_memcpy_fromio_32(buf, (const void __iomem *) 660 wil_blob->blob.data + aligned_pos, aligned_count); 661 662 ret = copy_to_user(user_buf, buf + unaligned_bytes, count); 663 664 wil_mem_access_unlock(wil); 665 wil_pm_runtime_put(wil); 666 667 kfree(buf); 668 if (ret == count) 669 return -EFAULT; 670 671 count -= ret; 672 *ppos = pos + count; 673 674 return count; 675} 676 677static const struct file_operations fops_ioblob = { 678 .read = wil_read_file_ioblob, 679 .open = simple_open, 680 .llseek = default_llseek, 681}; 682 683static 684struct dentry *wil_debugfs_create_ioblob(const char *name, 685 umode_t mode, 686 struct dentry *parent, 687 struct wil_blob_wrapper *wil_blob) 688{ 689 return debugfs_create_file(name, mode, parent, wil_blob, &fops_ioblob); 690} 691 692/*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 693static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 694 size_t len, loff_t *ppos) 695{ 696 struct wil6210_priv *wil = file->private_data; 697 int rc; 698 long channel; 699 bool on; 700 701 char *kbuf = memdup_user_nul(buf, len); 702 703 if (IS_ERR(kbuf)) 704 return PTR_ERR(kbuf); 705 rc = kstrtol(kbuf, 0, &channel); 706 kfree(kbuf); 707 if (rc) 708 return rc; 709 710 if ((channel < 0) || (channel > 4)) { 711 wil_err(wil, "Invalid channel %ld\n", channel); 712 return -EINVAL; 713 } 714 on = !!channel; 715 716 if (on) { 717 rc = wmi_set_channel(wil, (int)channel); 718 if (rc) 719 return rc; 720 } 721 722 rc = wmi_rxon(wil, on); 723 if (rc) 724 return rc; 725 726 return len; 727} 728 729static const struct file_operations fops_rxon = { 730 .write = wil_write_file_rxon, 731 .open = simple_open, 732}; 733 734static ssize_t wil_write_file_rbufcap(struct file *file, 735 const char __user *buf, 736 size_t count, loff_t *ppos) 737{ 738 struct wil6210_priv *wil = file->private_data; 739 int val; 740 int rc; 741 742 rc = kstrtoint_from_user(buf, count, 0, &val); 743 if (rc) { 744 wil_err(wil, "Invalid argument\n"); 745 return rc; 746 } 747 /* input value: negative to disable, 0 to use system default, 748 * 1..ring size to set descriptor threshold 749 */ 750 wil_info(wil, "%s RBUFCAP, descriptors threshold - %d\n", 751 val < 0 ? "Disabling" : "Enabling", val); 752 753 if (!wil->ring_rx.va || val > wil->ring_rx.size) { 754 wil_err(wil, "Invalid descriptors threshold, %d\n", val); 755 return -EINVAL; 756 } 757 758 rc = wmi_rbufcap_cfg(wil, val < 0 ? 0 : 1, val < 0 ? 0 : val); 759 if (rc) { 760 wil_err(wil, "RBUFCAP config failed: %d\n", rc); 761 return rc; 762 } 763 764 return count; 765} 766 767static const struct file_operations fops_rbufcap = { 768 .write = wil_write_file_rbufcap, 769 .open = simple_open, 770}; 771 772/* block ack control, write: 773 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 774 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 775 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 776 */ 777static ssize_t wil_write_back(struct file *file, const char __user *buf, 778 size_t len, loff_t *ppos) 779{ 780 struct wil6210_priv *wil = file->private_data; 781 int rc; 782 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 783 char cmd[9]; 784 int p1, p2, p3; 785 786 if (!kbuf) 787 return -ENOMEM; 788 789 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 790 if (rc != len) { 791 kfree(kbuf); 792 return rc >= 0 ? -EIO : rc; 793 } 794 795 kbuf[len] = '\0'; 796 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 797 kfree(kbuf); 798 799 if (rc < 0) 800 return rc; 801 if (rc < 2) 802 return -EINVAL; 803 804 if ((strcmp(cmd, "add") == 0) || 805 (strcmp(cmd, "del_tx") == 0)) { 806 struct wil_ring_tx_data *txdata; 807 808 if (p1 < 0 || p1 >= WIL6210_MAX_TX_RINGS) { 809 wil_err(wil, "BACK: invalid ring id %d\n", p1); 810 return -EINVAL; 811 } 812 txdata = &wil->ring_tx_data[p1]; 813 if (strcmp(cmd, "add") == 0) { 814 if (rc < 3) { 815 wil_err(wil, "BACK: add require at least 2 params\n"); 816 return -EINVAL; 817 } 818 if (rc < 4) 819 p3 = 0; 820 wmi_addba(wil, txdata->mid, p1, p2, p3); 821 } else { 822 if (rc < 3) 823 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 824 wmi_delba_tx(wil, txdata->mid, p1, p2); 825 } 826 } else if (strcmp(cmd, "del_rx") == 0) { 827 struct wil_sta_info *sta; 828 829 if (rc < 3) { 830 wil_err(wil, 831 "BACK: del_rx require at least 2 params\n"); 832 return -EINVAL; 833 } 834 if (p1 < 0 || p1 >= wil->max_assoc_sta) { 835 wil_err(wil, "BACK: invalid CID %d\n", p1); 836 return -EINVAL; 837 } 838 if (rc < 4) 839 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 840 sta = &wil->sta[p1]; 841 wmi_delba_rx(wil, sta->mid, p1, p2, p3); 842 } else { 843 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 844 return -EINVAL; 845 } 846 847 return len; 848} 849 850static ssize_t wil_read_back(struct file *file, char __user *user_buf, 851 size_t count, loff_t *ppos) 852{ 853 static const char text[] = "block ack control, write:\n" 854 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 855 "If missing, <timeout> defaults to 0\n" 856 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 857 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 858 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 859 860 return simple_read_from_buffer(user_buf, count, ppos, text, 861 sizeof(text)); 862} 863 864static const struct file_operations fops_back = { 865 .read = wil_read_back, 866 .write = wil_write_back, 867 .open = simple_open, 868}; 869 870/* pmc control, write: 871 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 872 * - "free" to release memory allocated for PMC 873 */ 874static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 875 size_t len, loff_t *ppos) 876{ 877 struct wil6210_priv *wil = file->private_data; 878 int rc; 879 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 880 char cmd[9]; 881 int num_descs, desc_size; 882 883 if (!kbuf) 884 return -ENOMEM; 885 886 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 887 if (rc != len) { 888 kfree(kbuf); 889 return rc >= 0 ? -EIO : rc; 890 } 891 892 kbuf[len] = '\0'; 893 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 894 kfree(kbuf); 895 896 if (rc < 0) 897 return rc; 898 899 if (rc < 1) { 900 wil_err(wil, "pmccfg: no params given\n"); 901 return -EINVAL; 902 } 903 904 if (0 == strcmp(cmd, "alloc")) { 905 if (rc != 3) { 906 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 907 return -EINVAL; 908 } 909 wil_pmc_alloc(wil, num_descs, desc_size); 910 } else if (0 == strcmp(cmd, "free")) { 911 if (rc != 1) { 912 wil_err(wil, "pmccfg: free does not have any params\n"); 913 return -EINVAL; 914 } 915 wil_pmc_free(wil, true); 916 } else { 917 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 918 return -EINVAL; 919 } 920 921 return len; 922} 923 924static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 925 size_t count, loff_t *ppos) 926{ 927 struct wil6210_priv *wil = file->private_data; 928 char text[256]; 929 char help[] = "pmc control, write:\n" 930 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 931 " - \"free\" to free memory allocated for pmc\n"; 932 933 snprintf(text, sizeof(text), "Last command status: %d\n\n%s", 934 wil_pmc_last_cmd_status(wil), help); 935 936 return simple_read_from_buffer(user_buf, count, ppos, text, 937 strlen(text) + 1); 938} 939 940static const struct file_operations fops_pmccfg = { 941 .read = wil_read_pmccfg, 942 .write = wil_write_pmccfg, 943 .open = simple_open, 944}; 945 946static const struct file_operations fops_pmcdata = { 947 .open = simple_open, 948 .read = wil_pmc_read, 949 .llseek = wil_pmc_llseek, 950}; 951 952static int wil_pmcring_seq_open(struct inode *inode, struct file *file) 953{ 954 return single_open(file, wil_pmcring_read, inode->i_private); 955} 956 957static const struct file_operations fops_pmcring = { 958 .open = wil_pmcring_seq_open, 959 .release = single_release, 960 .read = seq_read, 961 .llseek = seq_lseek, 962}; 963 964/*---tx_mgmt---*/ 965/* Write mgmt frame to this file to send it */ 966static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 967 size_t len, loff_t *ppos) 968{ 969 struct wil6210_priv *wil = file->private_data; 970 struct wiphy *wiphy = wil_to_wiphy(wil); 971 struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr; 972 struct cfg80211_mgmt_tx_params params; 973 int rc; 974 void *frame; 975 976 memset(¶ms, 0, sizeof(params)); 977 978 if (!len) 979 return -EINVAL; 980 981 frame = memdup_user(buf, len); 982 if (IS_ERR(frame)) 983 return PTR_ERR(frame); 984 985 params.buf = frame; 986 params.len = len; 987 988 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 989 990 kfree(frame); 991 wil_info(wil, "-> %d\n", rc); 992 993 return len; 994} 995 996static const struct file_operations fops_txmgmt = { 997 .write = wil_write_file_txmgmt, 998 .open = simple_open, 999}; 1000 1001/* Write WMI command (w/o mbox header) to this file to send it 1002 * WMI starts from wil6210_mbox_hdr_wmi header 1003 */ 1004static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 1005 size_t len, loff_t *ppos) 1006{ 1007 struct wil6210_priv *wil = file->private_data; 1008 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev); 1009 struct wmi_cmd_hdr *wmi; 1010 void *cmd; 1011 int cmdlen = len - sizeof(struct wmi_cmd_hdr); 1012 u16 cmdid; 1013 int rc1; 1014 1015 if (cmdlen < 0 || *ppos != 0) 1016 return -EINVAL; 1017 1018 wmi = memdup_user(buf, len); 1019 if (IS_ERR(wmi)) 1020 return PTR_ERR(wmi); 1021 1022 cmd = (cmdlen > 0) ? &wmi[1] : NULL; 1023 cmdid = le16_to_cpu(wmi->command_id); 1024 1025 rc1 = wmi_send(wil, cmdid, vif->mid, cmd, cmdlen); 1026 kfree(wmi); 1027 1028 wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1); 1029 1030 return len; 1031} 1032 1033static const struct file_operations fops_wmi = { 1034 .write = wil_write_file_wmi, 1035 .open = simple_open, 1036}; 1037 1038static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 1039{ 1040 int i = 0; 1041 int len = skb_headlen(skb); 1042 void *p = skb->data; 1043 int nr_frags = skb_shinfo(skb)->nr_frags; 1044 1045 seq_printf(s, " len = %d\n", len); 1046 wil_seq_hexdump(s, p, len, " : "); 1047 1048 if (nr_frags) { 1049 seq_printf(s, " nr_frags = %d\n", nr_frags); 1050 for (i = 0; i < nr_frags; i++) { 1051 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 1052 1053 len = skb_frag_size(frag); 1054 p = skb_frag_address_safe(frag); 1055 seq_printf(s, " [%2d] : len = %d\n", i, len); 1056 wil_seq_hexdump(s, p, len, " : "); 1057 } 1058 } 1059} 1060 1061/*---------Tx/Rx descriptor------------*/ 1062static int txdesc_show(struct seq_file *s, void *data) 1063{ 1064 struct wil6210_priv *wil = s->private; 1065 struct wil_ring *ring; 1066 bool tx; 1067 int ring_idx = dbg_ring_index; 1068 int txdesc_idx = dbg_txdesc_index; 1069 volatile struct vring_tx_desc *d; 1070 volatile u32 *u; 1071 struct sk_buff *skb; 1072 1073 if (wil->use_enhanced_dma_hw) { 1074 /* RX ring index == 0 */ 1075 if (ring_idx >= WIL6210_MAX_TX_RINGS) { 1076 seq_printf(s, "invalid ring index %d\n", ring_idx); 1077 return 0; 1078 } 1079 tx = ring_idx > 0; /* desc ring 0 is reserved for RX */ 1080 } else { 1081 /* RX ring index == WIL6210_MAX_TX_RINGS */ 1082 if (ring_idx > WIL6210_MAX_TX_RINGS) { 1083 seq_printf(s, "invalid ring index %d\n", ring_idx); 1084 return 0; 1085 } 1086 tx = (ring_idx < WIL6210_MAX_TX_RINGS); 1087 } 1088 1089 ring = tx ? &wil->ring_tx[ring_idx] : &wil->ring_rx; 1090 1091 if (!ring->va) { 1092 if (tx) 1093 seq_printf(s, "No Tx[%2d] RING\n", ring_idx); 1094 else 1095 seq_puts(s, "No Rx RING\n"); 1096 return 0; 1097 } 1098 1099 if (txdesc_idx >= ring->size) { 1100 if (tx) 1101 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 1102 ring_idx, txdesc_idx, ring->size); 1103 else 1104 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 1105 txdesc_idx, ring->size); 1106 return 0; 1107 } 1108 1109 /* use struct vring_tx_desc for Rx as well, 1110 * only field used, .dma.length, is the same 1111 */ 1112 d = &ring->va[txdesc_idx].tx.legacy; 1113 u = (volatile u32 *)d; 1114 skb = NULL; 1115 1116 if (wil->use_enhanced_dma_hw) { 1117 if (tx) { 1118 skb = ring->ctx ? ring->ctx[txdesc_idx].skb : NULL; 1119 } else if (wil->rx_buff_mgmt.buff_arr) { 1120 struct wil_rx_enhanced_desc *rx_d = 1121 (struct wil_rx_enhanced_desc *) 1122 &ring->va[txdesc_idx].rx.enhanced; 1123 u16 buff_id = le16_to_cpu(rx_d->mac.buff_id); 1124 1125 if (!wil_val_in_range(buff_id, 0, 1126 wil->rx_buff_mgmt.size)) 1127 seq_printf(s, "invalid buff_id %d\n", buff_id); 1128 else 1129 skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb; 1130 } 1131 } else { 1132 skb = ring->ctx[txdesc_idx].skb; 1133 } 1134 if (tx) 1135 seq_printf(s, "Tx[%2d][%3d] = {\n", ring_idx, 1136 txdesc_idx); 1137 else 1138 seq_printf(s, "Rx[%3d] = {\n", txdesc_idx); 1139 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 1140 u[0], u[1], u[2], u[3]); 1141 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 1142 u[4], u[5], u[6], u[7]); 1143 seq_printf(s, " SKB = 0x%p\n", skb); 1144 1145 if (skb) { 1146 skb_get(skb); 1147 wil_seq_print_skb(s, skb); 1148 kfree_skb(skb); 1149 } 1150 seq_puts(s, "}\n"); 1151 1152 return 0; 1153} 1154DEFINE_SHOW_ATTRIBUTE(txdesc); 1155 1156/*---------Tx/Rx status message------------*/ 1157static int status_msg_show(struct seq_file *s, void *data) 1158{ 1159 struct wil6210_priv *wil = s->private; 1160 int sring_idx = dbg_sring_index; 1161 struct wil_status_ring *sring; 1162 bool tx; 1163 u32 status_msg_idx = dbg_status_msg_index; 1164 u32 *u; 1165 1166 if (sring_idx >= WIL6210_MAX_STATUS_RINGS) { 1167 seq_printf(s, "invalid status ring index %d\n", sring_idx); 1168 return 0; 1169 } 1170 1171 sring = &wil->srings[sring_idx]; 1172 tx = !sring->is_rx; 1173 1174 if (!sring->va) { 1175 seq_printf(s, "No %cX status ring\n", tx ? 'T' : 'R'); 1176 return 0; 1177 } 1178 1179 if (status_msg_idx >= sring->size) { 1180 seq_printf(s, "%cxDesc index (%d) >= size (%d)\n", 1181 tx ? 'T' : 'R', status_msg_idx, sring->size); 1182 return 0; 1183 } 1184 1185 u = sring->va + (sring->elem_size * status_msg_idx); 1186 1187 seq_printf(s, "%cx[%d][%3d] = {\n", 1188 tx ? 'T' : 'R', sring_idx, status_msg_idx); 1189 1190 seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x\n", 1191 u[0], u[1], u[2], u[3]); 1192 if (!tx && !wil->use_compressed_rx_status) 1193 seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x\n", 1194 u[4], u[5], u[6], u[7]); 1195 1196 seq_puts(s, "}\n"); 1197 1198 return 0; 1199} 1200DEFINE_SHOW_ATTRIBUTE(status_msg); 1201 1202static int wil_print_rx_buff(struct seq_file *s, struct list_head *lh) 1203{ 1204 struct wil_rx_buff *it; 1205 int i = 0; 1206 1207 list_for_each_entry(it, lh, list) { 1208 if ((i % 16) == 0 && i != 0) 1209 seq_puts(s, "\n "); 1210 seq_printf(s, "[%4d] ", it->id); 1211 i++; 1212 } 1213 seq_printf(s, "\nNumber of buffers: %u\n", i); 1214 1215 return i; 1216} 1217 1218static int rx_buff_mgmt_show(struct seq_file *s, void *data) 1219{ 1220 struct wil6210_priv *wil = s->private; 1221 struct wil_rx_buff_mgmt *rbm = &wil->rx_buff_mgmt; 1222 int num_active; 1223 int num_free; 1224 1225 if (!rbm->buff_arr) 1226 return -EINVAL; 1227 1228 seq_printf(s, " size = %zu\n", rbm->size); 1229 seq_printf(s, " free_list_empty_cnt = %lu\n", 1230 rbm->free_list_empty_cnt); 1231 1232 /* Print active list */ 1233 seq_puts(s, " Active list:\n"); 1234 num_active = wil_print_rx_buff(s, &rbm->active); 1235 seq_puts(s, "\n Free list:\n"); 1236 num_free = wil_print_rx_buff(s, &rbm->free); 1237 1238 seq_printf(s, " Total number of buffers: %u\n", 1239 num_active + num_free); 1240 1241 return 0; 1242} 1243DEFINE_SHOW_ATTRIBUTE(rx_buff_mgmt); 1244 1245/*---------beamforming------------*/ 1246static char *wil_bfstatus_str(u32 status) 1247{ 1248 switch (status) { 1249 case 0: 1250 return "Failed"; 1251 case 1: 1252 return "OK"; 1253 case 2: 1254 return "Retrying"; 1255 default: 1256 return "??"; 1257 } 1258} 1259 1260static bool is_all_zeros(void * const x_, size_t sz) 1261{ 1262 /* if reply is all-0, ignore this CID */ 1263 u32 *x = x_; 1264 int n; 1265 1266 for (n = 0; n < sz / sizeof(*x); n++) 1267 if (x[n]) 1268 return false; 1269 1270 return true; 1271} 1272 1273static int bf_show(struct seq_file *s, void *data) 1274{ 1275 int rc; 1276 int i; 1277 struct wil6210_priv *wil = s->private; 1278 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev); 1279 struct wmi_notify_req_cmd cmd = { 1280 .interval_usec = 0, 1281 }; 1282 struct { 1283 struct wmi_cmd_hdr wmi; 1284 struct wmi_notify_req_done_event evt; 1285 } __packed reply; 1286 1287 memset(&reply, 0, sizeof(reply)); 1288 1289 for (i = 0; i < wil->max_assoc_sta; i++) { 1290 u32 status; 1291 u8 bf_mcs; 1292 1293 cmd.cid = i; 1294 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, vif->mid, 1295 &cmd, sizeof(cmd), 1296 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1297 sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS); 1298 /* if reply is all-0, ignore this CID */ 1299 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1300 continue; 1301 1302 status = le32_to_cpu(reply.evt.status); 1303 bf_mcs = le16_to_cpu(reply.evt.bf_mcs); 1304 seq_printf(s, "CID %d {\n" 1305 " TSF = 0x%016llx\n" 1306 " TxMCS = %s TxTpt = %4d\n" 1307 " SQI = %4d\n" 1308 " RSSI = %4d\n" 1309 " Status = 0x%08x %s\n" 1310 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1311 " Goodput(rx:tx) %4d:%4d\n" 1312 "}\n", 1313 i, 1314 le64_to_cpu(reply.evt.tsf), 1315 WIL_EXTENDED_MCS_CHECK(bf_mcs), 1316 le32_to_cpu(reply.evt.tx_tpt), 1317 reply.evt.sqi, 1318 reply.evt.rssi, 1319 status, wil_bfstatus_str(status), 1320 le16_to_cpu(reply.evt.my_rx_sector), 1321 le16_to_cpu(reply.evt.my_tx_sector), 1322 le16_to_cpu(reply.evt.other_rx_sector), 1323 le16_to_cpu(reply.evt.other_tx_sector), 1324 le32_to_cpu(reply.evt.rx_goodput), 1325 le32_to_cpu(reply.evt.tx_goodput)); 1326 } 1327 return 0; 1328} 1329DEFINE_SHOW_ATTRIBUTE(bf); 1330 1331/*---------temp------------*/ 1332static void print_temp(struct seq_file *s, const char *prefix, s32 t) 1333{ 1334 switch (t) { 1335 case 0: 1336 case WMI_INVALID_TEMPERATURE: 1337 seq_printf(s, "%s N/A\n", prefix); 1338 break; 1339 default: 1340 seq_printf(s, "%s %s%d.%03d\n", prefix, (t < 0 ? "-" : ""), 1341 abs(t / 1000), abs(t % 1000)); 1342 break; 1343 } 1344} 1345 1346static int temp_show(struct seq_file *s, void *data) 1347{ 1348 struct wil6210_priv *wil = s->private; 1349 int rc, i; 1350 1351 if (test_bit(WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF, 1352 wil->fw_capabilities)) { 1353 struct wmi_temp_sense_all_done_event sense_all_evt; 1354 1355 wil_dbg_misc(wil, 1356 "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is supported"); 1357 rc = wmi_get_all_temperatures(wil, &sense_all_evt); 1358 if (rc) { 1359 seq_puts(s, "Failed\n"); 1360 return 0; 1361 } 1362 print_temp(s, "T_mac =", 1363 le32_to_cpu(sense_all_evt.baseband_t1000)); 1364 seq_printf(s, "Connected RFs [0x%08x]\n", 1365 sense_all_evt.rf_bitmap); 1366 for (i = 0; i < WMI_MAX_XIF_PORTS_NUM; i++) { 1367 seq_printf(s, "RF[%d] = ", i); 1368 print_temp(s, "", 1369 le32_to_cpu(sense_all_evt.rf_t1000[i])); 1370 } 1371 } else { 1372 s32 t_m, t_r; 1373 1374 wil_dbg_misc(wil, 1375 "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is not supported"); 1376 rc = wmi_get_temperature(wil, &t_m, &t_r); 1377 if (rc) { 1378 seq_puts(s, "Failed\n"); 1379 return 0; 1380 } 1381 print_temp(s, "T_mac =", t_m); 1382 print_temp(s, "T_radio =", t_r); 1383 } 1384 return 0; 1385} 1386DEFINE_SHOW_ATTRIBUTE(temp); 1387 1388/*---------link------------*/ 1389static int link_show(struct seq_file *s, void *data) 1390{ 1391 struct wil6210_priv *wil = s->private; 1392 struct station_info *sinfo; 1393 int i, rc = 0; 1394 1395 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL); 1396 if (!sinfo) 1397 return -ENOMEM; 1398 1399 for (i = 0; i < wil->max_assoc_sta; i++) { 1400 struct wil_sta_info *p = &wil->sta[i]; 1401 char *status = "unknown"; 1402 struct wil6210_vif *vif; 1403 u8 mid; 1404 1405 switch (p->status) { 1406 case wil_sta_unused: 1407 status = "unused "; 1408 break; 1409 case wil_sta_conn_pending: 1410 status = "pending "; 1411 break; 1412 case wil_sta_connected: 1413 status = "connected"; 1414 break; 1415 } 1416 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX; 1417 seq_printf(s, "[%d][MID %d] %pM %s\n", 1418 i, mid, p->addr, status); 1419 1420 if (p->status != wil_sta_connected) 1421 continue; 1422 1423 vif = (mid < GET_MAX_VIFS(wil)) ? wil->vifs[mid] : NULL; 1424 if (vif) { 1425 rc = wil_cid_fill_sinfo(vif, i, sinfo); 1426 if (rc) 1427 goto out; 1428 1429 seq_printf(s, " Tx_mcs = %s\n", 1430 WIL_EXTENDED_MCS_CHECK(sinfo->txrate.mcs)); 1431 seq_printf(s, " Rx_mcs = %s\n", 1432 WIL_EXTENDED_MCS_CHECK(sinfo->rxrate.mcs)); 1433 seq_printf(s, " SQ = %d\n", sinfo->signal); 1434 } else { 1435 seq_puts(s, " INVALID MID\n"); 1436 } 1437 } 1438 1439out: 1440 kfree(sinfo); 1441 return rc; 1442} 1443DEFINE_SHOW_ATTRIBUTE(link); 1444 1445/*---------info------------*/ 1446static int info_show(struct seq_file *s, void *data) 1447{ 1448 struct wil6210_priv *wil = s->private; 1449 struct net_device *ndev = wil->main_ndev; 1450 int is_ac = power_supply_is_system_supplied(); 1451 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1452 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1453 static ulong rxf_old, txf_old; 1454 ulong rxf = ndev->stats.rx_packets; 1455 ulong txf = ndev->stats.tx_packets; 1456 unsigned int i; 1457 1458 /* >0 : AC; 0 : battery; <0 : error */ 1459 seq_printf(s, "AC powered : %d\n", is_ac); 1460 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1461 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1462 rxf_old = rxf; 1463 txf_old = txf; 1464 1465#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1466 " " __stringify(x) : "" 1467 1468 for (i = 0; i < ndev->num_tx_queues; i++) { 1469 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1470 unsigned long state = txq->state; 1471 1472 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1473 CHECK_QSTATE(DRV_XOFF), 1474 CHECK_QSTATE(STACK_XOFF), 1475 CHECK_QSTATE(FROZEN) 1476 ); 1477 } 1478#undef CHECK_QSTATE 1479 return 0; 1480} 1481DEFINE_SHOW_ATTRIBUTE(info); 1482 1483/*---------recovery------------*/ 1484/* mode = [manual|auto] 1485 * state = [idle|pending|running] 1486 */ 1487static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1488 size_t count, loff_t *ppos) 1489{ 1490 struct wil6210_priv *wil = file->private_data; 1491 char buf[80]; 1492 int n; 1493 static const char * const sstate[] = {"idle", "pending", "running"}; 1494 1495 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1496 no_fw_recovery ? "manual" : "auto", 1497 sstate[wil->recovery_state]); 1498 1499 n = min_t(int, n, sizeof(buf)); 1500 1501 return simple_read_from_buffer(user_buf, count, ppos, 1502 buf, n); 1503} 1504 1505static ssize_t wil_write_file_recovery(struct file *file, 1506 const char __user *buf_, 1507 size_t count, loff_t *ppos) 1508{ 1509 struct wil6210_priv *wil = file->private_data; 1510 static const char run_command[] = "run"; 1511 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1512 ssize_t rc; 1513 1514 if (wil->recovery_state != fw_recovery_pending) { 1515 wil_err(wil, "No recovery pending\n"); 1516 return -EINVAL; 1517 } 1518 1519 if (*ppos != 0) { 1520 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1521 return -EINVAL; 1522 } 1523 1524 if (count > sizeof(buf)) { 1525 wil_err(wil, "Input too long, len = %d\n", (int)count); 1526 return -EINVAL; 1527 } 1528 1529 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1530 if (rc < 0) 1531 return rc; 1532 1533 buf[rc] = '\0'; 1534 if (0 == strcmp(buf, run_command)) 1535 wil_set_recovery_state(wil, fw_recovery_running); 1536 else 1537 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1538 1539 return rc; 1540} 1541 1542static const struct file_operations fops_recovery = { 1543 .read = wil_read_file_recovery, 1544 .write = wil_write_file_recovery, 1545 .open = simple_open, 1546}; 1547 1548/*---------Station matrix------------*/ 1549static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1550{ 1551 int i; 1552 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1553 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1554 unsigned long long drop_dup_mcast = r->drop_dup_mcast; 1555 1556 seq_printf(s, "([%2d]) 0x%03x [", r->buf_size, r->head_seq_num); 1557 for (i = 0; i < r->buf_size; i++) { 1558 if (i == index) 1559 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1560 else 1561 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1562 } 1563 seq_printf(s, 1564 "] total %llu drop %llu (dup %llu + old %llu + dup mcast %llu) last 0x%03x\n", 1565 r->total, drop_dup + drop_old + drop_dup_mcast, drop_dup, 1566 drop_old, drop_dup_mcast, r->ssn_last_drop); 1567} 1568 1569static void wil_print_rxtid_crypto(struct seq_file *s, int tid, 1570 struct wil_tid_crypto_rx *c) 1571{ 1572 int i; 1573 1574 for (i = 0; i < 4; i++) { 1575 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1576 1577 if (cc->key_set) 1578 goto has_keys; 1579 } 1580 return; 1581 1582has_keys: 1583 if (tid < WIL_STA_TID_NUM) 1584 seq_printf(s, " [%2d] PN", tid); 1585 else 1586 seq_puts(s, " [GR] PN"); 1587 1588 for (i = 0; i < 4; i++) { 1589 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1590 1591 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", 1592 cc->pn); 1593 } 1594 seq_puts(s, "\n"); 1595} 1596 1597static int sta_show(struct seq_file *s, void *data) 1598__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1599{ 1600 struct wil6210_priv *wil = s->private; 1601 int i, tid, mcs; 1602 1603 for (i = 0; i < wil->max_assoc_sta; i++) { 1604 struct wil_sta_info *p = &wil->sta[i]; 1605 char *status = "unknown"; 1606 u8 aid = 0; 1607 u8 mid; 1608 bool sta_connected = false; 1609 1610 switch (p->status) { 1611 case wil_sta_unused: 1612 status = "unused "; 1613 break; 1614 case wil_sta_conn_pending: 1615 status = "pending "; 1616 break; 1617 case wil_sta_connected: 1618 status = "connected"; 1619 aid = p->aid; 1620 break; 1621 } 1622 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX; 1623 if (mid < GET_MAX_VIFS(wil)) { 1624 struct wil6210_vif *vif = wil->vifs[mid]; 1625 1626 if (vif->wdev.iftype == NL80211_IFTYPE_STATION && 1627 p->status == wil_sta_connected) 1628 sta_connected = true; 1629 } 1630 /* print roam counter only for connected stations */ 1631 if (sta_connected) 1632 seq_printf(s, "[%d] %pM connected (roam counter %d) MID %d AID %d\n", 1633 i, p->addr, p->stats.ft_roams, mid, aid); 1634 else 1635 seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i, 1636 p->addr, status, mid, aid); 1637 1638 if (p->status == wil_sta_connected) { 1639 spin_lock_bh(&p->tid_rx_lock); 1640 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1641 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1642 struct wil_tid_crypto_rx *c = 1643 &p->tid_crypto_rx[tid]; 1644 1645 if (r) { 1646 seq_printf(s, " [%2d] ", tid); 1647 wil_print_rxtid(s, r); 1648 } 1649 1650 wil_print_rxtid_crypto(s, tid, c); 1651 } 1652 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, 1653 &p->group_crypto_rx); 1654 spin_unlock_bh(&p->tid_rx_lock); 1655 seq_printf(s, 1656 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", 1657 p->stats.rx_non_data_frame, 1658 p->stats.rx_short_frame, 1659 p->stats.rx_large_frame, 1660 p->stats.rx_replay); 1661 seq_printf(s, 1662 "mic error %lu, key error %lu, amsdu error %lu, csum error %lu\n", 1663 p->stats.rx_mic_error, 1664 p->stats.rx_key_error, 1665 p->stats.rx_amsdu_error, 1666 p->stats.rx_csum_err); 1667 1668 seq_puts(s, "Rx/MCS:"); 1669 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1670 mcs++) 1671 seq_printf(s, " %lld", 1672 p->stats.rx_per_mcs[mcs]); 1673 seq_puts(s, "\n"); 1674 } 1675 } 1676 1677 return 0; 1678} 1679DEFINE_SHOW_ATTRIBUTE(sta); 1680 1681static int mids_show(struct seq_file *s, void *data) 1682{ 1683 struct wil6210_priv *wil = s->private; 1684 struct wil6210_vif *vif; 1685 struct net_device *ndev; 1686 int i; 1687 1688 mutex_lock(&wil->vif_mutex); 1689 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1690 vif = wil->vifs[i]; 1691 1692 if (vif) { 1693 ndev = vif_to_ndev(vif); 1694 seq_printf(s, "[%d] %pM %s\n", i, ndev->dev_addr, 1695 ndev->name); 1696 } else { 1697 seq_printf(s, "[%d] unused\n", i); 1698 } 1699 } 1700 mutex_unlock(&wil->vif_mutex); 1701 1702 return 0; 1703} 1704DEFINE_SHOW_ATTRIBUTE(mids); 1705 1706static int wil_tx_latency_debugfs_show(struct seq_file *s, void *data) 1707__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1708{ 1709 struct wil6210_priv *wil = s->private; 1710 int i, bin; 1711 1712 for (i = 0; i < wil->max_assoc_sta; i++) { 1713 struct wil_sta_info *p = &wil->sta[i]; 1714 char *status = "unknown"; 1715 u8 aid = 0; 1716 u8 mid; 1717 1718 if (!p->tx_latency_bins) 1719 continue; 1720 1721 switch (p->status) { 1722 case wil_sta_unused: 1723 status = "unused "; 1724 break; 1725 case wil_sta_conn_pending: 1726 status = "pending "; 1727 break; 1728 case wil_sta_connected: 1729 status = "connected"; 1730 aid = p->aid; 1731 break; 1732 } 1733 mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX; 1734 seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i, p->addr, status, 1735 mid, aid); 1736 1737 if (p->status == wil_sta_connected) { 1738 u64 num_packets = 0; 1739 u64 tx_latency_avg = p->stats.tx_latency_total_us; 1740 1741 seq_puts(s, "Tx/Latency bin:"); 1742 for (bin = 0; bin < WIL_NUM_LATENCY_BINS; bin++) { 1743 seq_printf(s, " %lld", 1744 p->tx_latency_bins[bin]); 1745 num_packets += p->tx_latency_bins[bin]; 1746 } 1747 seq_puts(s, "\n"); 1748 if (!num_packets) 1749 continue; 1750 do_div(tx_latency_avg, num_packets); 1751 seq_printf(s, "Tx/Latency min/avg/max (us): %d/%lld/%d", 1752 p->stats.tx_latency_min_us, 1753 tx_latency_avg, 1754 p->stats.tx_latency_max_us); 1755 1756 seq_puts(s, "\n"); 1757 } 1758 } 1759 1760 return 0; 1761} 1762 1763static int wil_tx_latency_seq_open(struct inode *inode, struct file *file) 1764{ 1765 return single_open(file, wil_tx_latency_debugfs_show, 1766 inode->i_private); 1767} 1768 1769static ssize_t wil_tx_latency_write(struct file *file, const char __user *buf, 1770 size_t len, loff_t *ppos) 1771{ 1772 struct seq_file *s = file->private_data; 1773 struct wil6210_priv *wil = s->private; 1774 int val, rc, i; 1775 bool enable; 1776 1777 rc = kstrtoint_from_user(buf, len, 0, &val); 1778 if (rc) { 1779 wil_err(wil, "Invalid argument\n"); 1780 return rc; 1781 } 1782 if (val == 1) 1783 /* default resolution */ 1784 val = 500; 1785 if (val && (val < 50 || val > 1000)) { 1786 wil_err(wil, "Invalid resolution %d\n", val); 1787 return -EINVAL; 1788 } 1789 1790 enable = !!val; 1791 if (wil->tx_latency == enable) 1792 return len; 1793 1794 wil_info(wil, "%s TX latency measurements (resolution %dusec)\n", 1795 enable ? "Enabling" : "Disabling", val); 1796 1797 if (enable) { 1798 size_t sz = sizeof(u64) * WIL_NUM_LATENCY_BINS; 1799 1800 wil->tx_latency_res = val; 1801 for (i = 0; i < wil->max_assoc_sta; i++) { 1802 struct wil_sta_info *sta = &wil->sta[i]; 1803 1804 kfree(sta->tx_latency_bins); 1805 sta->tx_latency_bins = kzalloc(sz, GFP_KERNEL); 1806 if (!sta->tx_latency_bins) 1807 return -ENOMEM; 1808 sta->stats.tx_latency_min_us = U32_MAX; 1809 sta->stats.tx_latency_max_us = 0; 1810 sta->stats.tx_latency_total_us = 0; 1811 } 1812 } 1813 wil->tx_latency = enable; 1814 1815 return len; 1816} 1817 1818static const struct file_operations fops_tx_latency = { 1819 .open = wil_tx_latency_seq_open, 1820 .release = single_release, 1821 .read = seq_read, 1822 .write = wil_tx_latency_write, 1823 .llseek = seq_lseek, 1824}; 1825 1826static void wil_link_stats_print_basic(struct wil6210_vif *vif, 1827 struct seq_file *s, 1828 struct wmi_link_stats_basic *basic) 1829{ 1830 char per[5] = "?"; 1831 1832 if (basic->per_average != 0xff) 1833 snprintf(per, sizeof(per), "%d%%", basic->per_average); 1834 1835 seq_printf(s, "CID %d {\n" 1836 "\tTxMCS %s TxTpt %d\n" 1837 "\tGoodput(rx:tx) %d:%d\n" 1838 "\tRxBcastFrames %d\n" 1839 "\tRSSI %d SQI %d SNR %d PER %s\n" 1840 "\tRx RFC %d Ant num %d\n" 1841 "\tSectors(rx:tx) my %d:%d peer %d:%d\n" 1842 "}\n", 1843 basic->cid, 1844 WIL_EXTENDED_MCS_CHECK(basic->bf_mcs), 1845 le32_to_cpu(basic->tx_tpt), 1846 le32_to_cpu(basic->rx_goodput), 1847 le32_to_cpu(basic->tx_goodput), 1848 le32_to_cpu(basic->rx_bcast_frames), 1849 basic->rssi, basic->sqi, basic->snr, per, 1850 basic->selected_rfc, basic->rx_effective_ant_num, 1851 basic->my_rx_sector, basic->my_tx_sector, 1852 basic->other_rx_sector, basic->other_tx_sector); 1853} 1854 1855static void wil_link_stats_print_global(struct wil6210_priv *wil, 1856 struct seq_file *s, 1857 struct wmi_link_stats_global *global) 1858{ 1859 seq_printf(s, "Frames(rx:tx) %d:%d\n" 1860 "BA Frames(rx:tx) %d:%d\n" 1861 "Beacons %d\n" 1862 "Rx Errors (MIC:CRC) %d:%d\n" 1863 "Tx Errors (no ack) %d\n", 1864 le32_to_cpu(global->rx_frames), 1865 le32_to_cpu(global->tx_frames), 1866 le32_to_cpu(global->rx_ba_frames), 1867 le32_to_cpu(global->tx_ba_frames), 1868 le32_to_cpu(global->tx_beacons), 1869 le32_to_cpu(global->rx_mic_errors), 1870 le32_to_cpu(global->rx_crc_errors), 1871 le32_to_cpu(global->tx_fail_no_ack)); 1872} 1873 1874static void wil_link_stats_debugfs_show_vif(struct wil6210_vif *vif, 1875 struct seq_file *s) 1876{ 1877 struct wil6210_priv *wil = vif_to_wil(vif); 1878 struct wmi_link_stats_basic *stats; 1879 int i; 1880 1881 if (!vif->fw_stats_ready) { 1882 seq_puts(s, "no statistics\n"); 1883 return; 1884 } 1885 1886 seq_printf(s, "TSF %lld\n", vif->fw_stats_tsf); 1887 for (i = 0; i < wil->max_assoc_sta; i++) { 1888 if (wil->sta[i].status == wil_sta_unused) 1889 continue; 1890 if (wil->sta[i].mid != vif->mid) 1891 continue; 1892 1893 stats = &wil->sta[i].fw_stats_basic; 1894 wil_link_stats_print_basic(vif, s, stats); 1895 } 1896} 1897 1898static int wil_link_stats_debugfs_show(struct seq_file *s, void *data) 1899{ 1900 struct wil6210_priv *wil = s->private; 1901 struct wil6210_vif *vif; 1902 int i, rc; 1903 1904 rc = mutex_lock_interruptible(&wil->vif_mutex); 1905 if (rc) 1906 return rc; 1907 1908 /* iterate over all MIDs and show per-cid statistics. Then show the 1909 * global statistics 1910 */ 1911 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1912 vif = wil->vifs[i]; 1913 1914 seq_printf(s, "MID %d ", i); 1915 if (!vif) { 1916 seq_puts(s, "unused\n"); 1917 continue; 1918 } 1919 1920 wil_link_stats_debugfs_show_vif(vif, s); 1921 } 1922 1923 mutex_unlock(&wil->vif_mutex); 1924 1925 return 0; 1926} 1927 1928static int wil_link_stats_seq_open(struct inode *inode, struct file *file) 1929{ 1930 return single_open(file, wil_link_stats_debugfs_show, inode->i_private); 1931} 1932 1933static ssize_t wil_link_stats_write(struct file *file, const char __user *buf, 1934 size_t len, loff_t *ppos) 1935{ 1936 struct seq_file *s = file->private_data; 1937 struct wil6210_priv *wil = s->private; 1938 int cid, interval, rc, i; 1939 struct wil6210_vif *vif; 1940 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 1941 1942 if (!kbuf) 1943 return -ENOMEM; 1944 1945 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 1946 if (rc != len) { 1947 kfree(kbuf); 1948 return rc >= 0 ? -EIO : rc; 1949 } 1950 1951 kbuf[len] = '\0'; 1952 /* specify cid (use -1 for all cids) and snapshot interval in ms */ 1953 rc = sscanf(kbuf, "%d %d", &cid, &interval); 1954 kfree(kbuf); 1955 if (rc < 0) 1956 return rc; 1957 if (rc < 2 || interval < 0) 1958 return -EINVAL; 1959 1960 wil_info(wil, "request link statistics, cid %d interval %d\n", 1961 cid, interval); 1962 1963 rc = mutex_lock_interruptible(&wil->vif_mutex); 1964 if (rc) 1965 return rc; 1966 1967 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1968 vif = wil->vifs[i]; 1969 if (!vif) 1970 continue; 1971 1972 rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_BASIC, 1973 (cid == -1 ? 0xff : cid), interval); 1974 if (rc) 1975 wil_err(wil, "link statistics failed for mid %d\n", i); 1976 } 1977 mutex_unlock(&wil->vif_mutex); 1978 1979 return len; 1980} 1981 1982static const struct file_operations fops_link_stats = { 1983 .open = wil_link_stats_seq_open, 1984 .release = single_release, 1985 .read = seq_read, 1986 .write = wil_link_stats_write, 1987 .llseek = seq_lseek, 1988}; 1989 1990static int 1991wil_link_stats_global_debugfs_show(struct seq_file *s, void *data) 1992{ 1993 struct wil6210_priv *wil = s->private; 1994 1995 if (!wil->fw_stats_global.ready) 1996 return 0; 1997 1998 seq_printf(s, "TSF %lld\n", wil->fw_stats_global.tsf); 1999 wil_link_stats_print_global(wil, s, &wil->fw_stats_global.stats); 2000 2001 return 0; 2002} 2003 2004static int 2005wil_link_stats_global_seq_open(struct inode *inode, struct file *file) 2006{ 2007 return single_open(file, wil_link_stats_global_debugfs_show, 2008 inode->i_private); 2009} 2010 2011static ssize_t 2012wil_link_stats_global_write(struct file *file, const char __user *buf, 2013 size_t len, loff_t *ppos) 2014{ 2015 struct seq_file *s = file->private_data; 2016 struct wil6210_priv *wil = s->private; 2017 int interval, rc; 2018 struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev); 2019 2020 /* specify snapshot interval in ms */ 2021 rc = kstrtoint_from_user(buf, len, 0, &interval); 2022 if (rc || interval < 0) { 2023 wil_err(wil, "Invalid argument\n"); 2024 return -EINVAL; 2025 } 2026 2027 wil_info(wil, "request global link stats, interval %d\n", interval); 2028 2029 rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_GLOBAL, 0, interval); 2030 if (rc) 2031 wil_err(wil, "global link stats failed %d\n", rc); 2032 2033 return rc ? rc : len; 2034} 2035 2036static const struct file_operations fops_link_stats_global = { 2037 .open = wil_link_stats_global_seq_open, 2038 .release = single_release, 2039 .read = seq_read, 2040 .write = wil_link_stats_global_write, 2041 .llseek = seq_lseek, 2042}; 2043 2044static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf, 2045 size_t count, loff_t *ppos) 2046{ 2047 char buf[80]; 2048 int n; 2049 2050 n = snprintf(buf, sizeof(buf), 2051 "led_id is set to %d, echo 1 to enable, 0 to disable\n", 2052 led_id); 2053 2054 n = min_t(int, n, sizeof(buf)); 2055 2056 return simple_read_from_buffer(user_buf, count, ppos, 2057 buf, n); 2058} 2059 2060static ssize_t wil_write_file_led_cfg(struct file *file, 2061 const char __user *buf_, 2062 size_t count, loff_t *ppos) 2063{ 2064 struct wil6210_priv *wil = file->private_data; 2065 int val; 2066 int rc; 2067 2068 rc = kstrtoint_from_user(buf_, count, 0, &val); 2069 if (rc) { 2070 wil_err(wil, "Invalid argument\n"); 2071 return rc; 2072 } 2073 2074 wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id); 2075 rc = wmi_led_cfg(wil, val); 2076 if (rc) { 2077 wil_info(wil, "%s led %d failed\n", 2078 val ? "Enabling" : "Disabling", led_id); 2079 return rc; 2080 } 2081 2082 return count; 2083} 2084 2085static const struct file_operations fops_led_cfg = { 2086 .read = wil_read_file_led_cfg, 2087 .write = wil_write_file_led_cfg, 2088 .open = simple_open, 2089}; 2090 2091/* led_blink_time, write: 2092 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast> 2093 */ 2094static ssize_t wil_write_led_blink_time(struct file *file, 2095 const char __user *buf, 2096 size_t len, loff_t *ppos) 2097{ 2098 int rc; 2099 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 2100 2101 if (!kbuf) 2102 return -ENOMEM; 2103 2104 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 2105 if (rc != len) { 2106 kfree(kbuf); 2107 return rc >= 0 ? -EIO : rc; 2108 } 2109 2110 kbuf[len] = '\0'; 2111 rc = sscanf(kbuf, "%d %d %d %d %d %d", 2112 &led_blink_time[WIL_LED_TIME_SLOW].on_ms, 2113 &led_blink_time[WIL_LED_TIME_SLOW].off_ms, 2114 &led_blink_time[WIL_LED_TIME_MED].on_ms, 2115 &led_blink_time[WIL_LED_TIME_MED].off_ms, 2116 &led_blink_time[WIL_LED_TIME_FAST].on_ms, 2117 &led_blink_time[WIL_LED_TIME_FAST].off_ms); 2118 kfree(kbuf); 2119 2120 if (rc < 0) 2121 return rc; 2122 if (rc < 6) 2123 return -EINVAL; 2124 2125 return len; 2126} 2127 2128static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf, 2129 size_t count, loff_t *ppos) 2130{ 2131 static char text[400]; 2132 2133 snprintf(text, sizeof(text), 2134 "To set led blink on/off time variables write:\n" 2135 "<blink_on_slow> <blink_off_slow> <blink_on_med> " 2136 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n" 2137 "The current values are:\n" 2138 "%d %d %d %d %d %d\n", 2139 led_blink_time[WIL_LED_TIME_SLOW].on_ms, 2140 led_blink_time[WIL_LED_TIME_SLOW].off_ms, 2141 led_blink_time[WIL_LED_TIME_MED].on_ms, 2142 led_blink_time[WIL_LED_TIME_MED].off_ms, 2143 led_blink_time[WIL_LED_TIME_FAST].on_ms, 2144 led_blink_time[WIL_LED_TIME_FAST].off_ms); 2145 2146 return simple_read_from_buffer(user_buf, count, ppos, text, 2147 sizeof(text)); 2148} 2149 2150static const struct file_operations fops_led_blink_time = { 2151 .read = wil_read_led_blink_time, 2152 .write = wil_write_led_blink_time, 2153 .open = simple_open, 2154}; 2155 2156/*---------FW capabilities------------*/ 2157static int fw_capabilities_show(struct seq_file *s, void *data) 2158{ 2159 struct wil6210_priv *wil = s->private; 2160 2161 seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX, 2162 wil->fw_capabilities); 2163 2164 return 0; 2165} 2166DEFINE_SHOW_ATTRIBUTE(fw_capabilities); 2167 2168/*---------FW version------------*/ 2169static int fw_version_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} 2180DEFINE_SHOW_ATTRIBUTE(fw_version); 2181 2182/*---------suspend_stats---------*/ 2183static ssize_t wil_write_suspend_stats(struct file *file, 2184 const char __user *buf, 2185 size_t len, loff_t *ppos) 2186{ 2187 struct wil6210_priv *wil = file->private_data; 2188 2189 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats)); 2190 2191 return len; 2192} 2193 2194static ssize_t wil_read_suspend_stats(struct file *file, 2195 char __user *user_buf, 2196 size_t count, loff_t *ppos) 2197{ 2198 struct wil6210_priv *wil = file->private_data; 2199 char *text; 2200 int n, ret, text_size = 500; 2201 2202 text = kmalloc(text_size, GFP_KERNEL); 2203 if (!text) 2204 return -ENOMEM; 2205 2206 n = snprintf(text, text_size, 2207 "Radio on suspend statistics:\n" 2208 "successful suspends:%ld failed suspends:%ld\n" 2209 "successful resumes:%ld failed resumes:%ld\n" 2210 "rejected by device:%ld\n" 2211 "Radio off suspend statistics:\n" 2212 "successful suspends:%ld failed suspends:%ld\n" 2213 "successful resumes:%ld failed resumes:%ld\n" 2214 "General statistics:\n" 2215 "rejected by host:%ld\n", 2216 wil->suspend_stats.r_on.successful_suspends, 2217 wil->suspend_stats.r_on.failed_suspends, 2218 wil->suspend_stats.r_on.successful_resumes, 2219 wil->suspend_stats.r_on.failed_resumes, 2220 wil->suspend_stats.rejected_by_device, 2221 wil->suspend_stats.r_off.successful_suspends, 2222 wil->suspend_stats.r_off.failed_suspends, 2223 wil->suspend_stats.r_off.successful_resumes, 2224 wil->suspend_stats.r_off.failed_resumes, 2225 wil->suspend_stats.rejected_by_host); 2226 2227 n = min_t(int, n, text_size); 2228 2229 ret = simple_read_from_buffer(user_buf, count, ppos, text, n); 2230 2231 kfree(text); 2232 2233 return ret; 2234} 2235 2236static const struct file_operations fops_suspend_stats = { 2237 .read = wil_read_suspend_stats, 2238 .write = wil_write_suspend_stats, 2239 .open = simple_open, 2240}; 2241 2242/*---------compressed_rx_status---------*/ 2243static ssize_t wil_compressed_rx_status_write(struct file *file, 2244 const char __user *buf, 2245 size_t len, loff_t *ppos) 2246{ 2247 struct seq_file *s = file->private_data; 2248 struct wil6210_priv *wil = s->private; 2249 int compressed_rx_status; 2250 int rc; 2251 2252 rc = kstrtoint_from_user(buf, len, 0, &compressed_rx_status); 2253 if (rc) { 2254 wil_err(wil, "Invalid argument\n"); 2255 return rc; 2256 } 2257 2258 if (wil_has_active_ifaces(wil, true, false)) { 2259 wil_err(wil, "cannot change edma config after iface is up\n"); 2260 return -EPERM; 2261 } 2262 2263 wil_info(wil, "%sable compressed_rx_status\n", 2264 compressed_rx_status ? "En" : "Dis"); 2265 2266 wil->use_compressed_rx_status = compressed_rx_status; 2267 2268 return len; 2269} 2270 2271static int 2272wil_compressed_rx_status_show(struct seq_file *s, void *data) 2273{ 2274 struct wil6210_priv *wil = s->private; 2275 2276 seq_printf(s, "%d\n", wil->use_compressed_rx_status); 2277 2278 return 0; 2279} 2280 2281static int 2282wil_compressed_rx_status_seq_open(struct inode *inode, struct file *file) 2283{ 2284 return single_open(file, wil_compressed_rx_status_show, 2285 inode->i_private); 2286} 2287 2288static const struct file_operations fops_compressed_rx_status = { 2289 .open = wil_compressed_rx_status_seq_open, 2290 .release = single_release, 2291 .read = seq_read, 2292 .write = wil_compressed_rx_status_write, 2293 .llseek = seq_lseek, 2294}; 2295 2296/*----------------*/ 2297static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 2298 struct dentry *dbg) 2299{ 2300 int i; 2301 char name[32]; 2302 2303 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 2304 struct wil_blob_wrapper *wil_blob = &wil->blobs[i]; 2305 struct debugfs_blob_wrapper *blob = &wil_blob->blob; 2306 const struct fw_map *map = &fw_mapping[i]; 2307 2308 if (!map->name) 2309 continue; 2310 2311 wil_blob->wil = wil; 2312 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 2313 blob->size = map->to - map->from; 2314 snprintf(name, sizeof(name), "blob_%s", map->name); 2315 wil_debugfs_create_ioblob(name, 0444, dbg, wil_blob); 2316 } 2317} 2318 2319/* misc files */ 2320static const struct { 2321 const char *name; 2322 umode_t mode; 2323 const struct file_operations *fops; 2324} dbg_files[] = { 2325 {"mbox", 0444, &mbox_fops}, 2326 {"rings", 0444, &ring_fops}, 2327 {"stations", 0444, &sta_fops}, 2328 {"mids", 0444, &mids_fops}, 2329 {"desc", 0444, &txdesc_fops}, 2330 {"bf", 0444, &bf_fops}, 2331 {"mem_val", 0644, &memread_fops}, 2332 {"rxon", 0244, &fops_rxon}, 2333 {"tx_mgmt", 0244, &fops_txmgmt}, 2334 {"wmi_send", 0244, &fops_wmi}, 2335 {"back", 0644, &fops_back}, 2336 {"pmccfg", 0644, &fops_pmccfg}, 2337 {"pmcdata", 0444, &fops_pmcdata}, 2338 {"pmcring", 0444, &fops_pmcring}, 2339 {"temp", 0444, &temp_fops}, 2340 {"link", 0444, &link_fops}, 2341 {"info", 0444, &info_fops}, 2342 {"recovery", 0644, &fops_recovery}, 2343 {"led_cfg", 0644, &fops_led_cfg}, 2344 {"led_blink_time", 0644, &fops_led_blink_time}, 2345 {"fw_capabilities", 0444, &fw_capabilities_fops}, 2346 {"fw_version", 0444, &fw_version_fops}, 2347 {"suspend_stats", 0644, &fops_suspend_stats}, 2348 {"compressed_rx_status", 0644, &fops_compressed_rx_status}, 2349 {"srings", 0444, &srings_fops}, 2350 {"status_msg", 0444, &status_msg_fops}, 2351 {"rx_buff_mgmt", 0444, &rx_buff_mgmt_fops}, 2352 {"tx_latency", 0644, &fops_tx_latency}, 2353 {"link_stats", 0644, &fops_link_stats}, 2354 {"link_stats_global", 0644, &fops_link_stats_global}, 2355 {"rbufcap", 0244, &fops_rbufcap}, 2356}; 2357 2358static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 2359 struct dentry *dbg) 2360{ 2361 int i; 2362 2363 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 2364 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 2365 wil, dbg_files[i].fops); 2366} 2367 2368/* interrupt control blocks */ 2369static const struct { 2370 const char *name; 2371 u32 icr_off; 2372} dbg_icr[] = { 2373 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 2374 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 2375 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 2376 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 2377}; 2378 2379static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 2380 struct dentry *dbg) 2381{ 2382 int i; 2383 2384 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 2385 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 2386 dbg_icr[i].icr_off); 2387} 2388 2389#define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 2390 offsetof(struct wil6210_priv, name), type} 2391 2392/* fields in struct wil6210_priv */ 2393static const struct dbg_off dbg_wil_off[] = { 2394 WIL_FIELD(status[0], 0644, doff_ulong), 2395 WIL_FIELD(hw_version, 0444, doff_x32), 2396 WIL_FIELD(recovery_count, 0444, doff_u32), 2397 WIL_FIELD(discovery_mode, 0644, doff_u8), 2398 WIL_FIELD(chip_revision, 0444, doff_u8), 2399 WIL_FIELD(abft_len, 0644, doff_u8), 2400 WIL_FIELD(wakeup_trigger, 0644, doff_u8), 2401 WIL_FIELD(ring_idle_trsh, 0644, doff_u32), 2402 WIL_FIELD(num_rx_status_rings, 0644, doff_u8), 2403 WIL_FIELD(rx_status_ring_order, 0644, doff_u32), 2404 WIL_FIELD(tx_status_ring_order, 0644, doff_u32), 2405 WIL_FIELD(rx_buff_id_count, 0644, doff_u32), 2406 WIL_FIELD(amsdu_en, 0644, doff_u8), 2407 {}, 2408}; 2409 2410static const struct dbg_off dbg_wil_regs[] = { 2411 {"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 2412 doff_io32}, 2413 {"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 2414 {"RGF_USER_USAGE_2", 0444, HOSTADDR(RGF_USER_USAGE_2), doff_io32}, 2415 {}, 2416}; 2417 2418/* static parameters */ 2419static const struct dbg_off dbg_statics[] = { 2420 {"desc_index", 0644, (ulong)&dbg_txdesc_index, doff_u32}, 2421 {"ring_index", 0644, (ulong)&dbg_ring_index, doff_u32}, 2422 {"mem_addr", 0644, (ulong)&mem_addr, doff_u32}, 2423 {"led_polarity", 0644, (ulong)&led_polarity, doff_u8}, 2424 {"status_index", 0644, (ulong)&dbg_status_msg_index, doff_u32}, 2425 {"sring_index", 0644, (ulong)&dbg_sring_index, doff_u32}, 2426 {"drop_if_ring_full", 0644, (ulong)&drop_if_ring_full, doff_u8}, 2427 {}, 2428}; 2429 2430static const int dbg_off_count = 4 * (ARRAY_SIZE(isr_off) - 1) + 2431 ARRAY_SIZE(dbg_wil_regs) - 1 + 2432 ARRAY_SIZE(pseudo_isr_off) - 1 + 2433 ARRAY_SIZE(lgc_itr_cnt_off) - 1 + 2434 ARRAY_SIZE(tx_itr_cnt_off) - 1 + 2435 ARRAY_SIZE(rx_itr_cnt_off) - 1; 2436 2437int wil6210_debugfs_init(struct wil6210_priv *wil) 2438{ 2439 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 2440 wil_to_wiphy(wil)->debugfsdir); 2441 if (IS_ERR_OR_NULL(dbg)) 2442 return -ENODEV; 2443 2444 wil->dbg_data.data_arr = kcalloc(dbg_off_count, 2445 sizeof(struct wil_debugfs_iomem_data), 2446 GFP_KERNEL); 2447 if (!wil->dbg_data.data_arr) { 2448 debugfs_remove_recursive(dbg); 2449 wil->debug = NULL; 2450 return -ENOMEM; 2451 } 2452 2453 wil->dbg_data.iomem_data_count = 0; 2454 2455 wil_pmc_init(wil); 2456 2457 wil6210_debugfs_init_files(wil, dbg); 2458 wil6210_debugfs_init_isr(wil, dbg); 2459 wil6210_debugfs_init_blobs(wil, dbg); 2460 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 2461 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 2462 dbg_wil_regs); 2463 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 2464 2465 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 2466 2467 wil6210_debugfs_create_ITR_CNT(wil, dbg); 2468 2469 return 0; 2470} 2471 2472void wil6210_debugfs_remove(struct wil6210_priv *wil) 2473{ 2474 int i; 2475 2476 debugfs_remove_recursive(wil->debug); 2477 wil->debug = NULL; 2478 2479 kfree(wil->dbg_data.data_arr); 2480 for (i = 0; i < wil->max_assoc_sta; i++) 2481 kfree(wil->sta[i].tx_latency_bins); 2482 2483 /* free pmc memory without sending command to fw, as it will 2484 * be reset on the way down anyway 2485 */ 2486 wil_pmc_free(wil, false); 2487} 2488