1 /* 2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/module.h> 18 #include <linux/debugfs.h> 19 #include <linux/seq_file.h> 20 #include <linux/pci.h> 21 #include <linux/rtnetlink.h> 22 #include <linux/power_supply.h> 23 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_vring_index; /* 24+ for Rx, 0..23 for Tx */ 33 u32 vring_idle_trsh = 16; /* HW fetches up to 16 descriptors at once */ 34 35 enum dbg_off_type { 36 doff_u32 = 0, 37 doff_x32 = 1, 38 doff_ulong = 2, 39 doff_io32 = 3, 40 doff_u8 = 4 41 }; 42 43 /* offset to "wil" */ 44 struct dbg_off { 45 const char *name; 46 umode_t mode; 47 ulong off; 48 enum dbg_off_type type; 49 }; 50 51 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil, 52 const char *name, struct vring *vring, 53 char _s, char _h) 54 { 55 void __iomem *x = wmi_addr(wil, vring->hwtail); 56 u32 v; 57 58 seq_printf(s, "VRING %s = {\n", name); 59 seq_printf(s, " pa = %pad\n", &vring->pa); 60 seq_printf(s, " va = 0x%p\n", vring->va); 61 seq_printf(s, " size = %d\n", vring->size); 62 seq_printf(s, " swtail = %d\n", vring->swtail); 63 seq_printf(s, " swhead = %d\n", vring->swhead); 64 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail); 65 if (x) { 66 v = readl(x); 67 seq_printf(s, "0x%08x = %d\n", v, v); 68 } else { 69 seq_puts(s, "???\n"); 70 } 71 72 if (vring->va && (vring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) { 73 uint i; 74 75 for (i = 0; i < vring->size; i++) { 76 volatile struct vring_tx_desc *d = &vring->va[i].tx; 77 78 if ((i % 128) == 0 && (i != 0)) 79 seq_puts(s, "\n"); 80 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 81 _s : (vring->ctx[i].skb ? _h : 'h')); 82 } 83 seq_puts(s, "\n"); 84 } 85 seq_puts(s, "}\n"); 86 } 87 88 static int wil_vring_debugfs_show(struct seq_file *s, void *data) 89 { 90 uint i; 91 struct wil6210_priv *wil = s->private; 92 93 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_'); 94 95 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 96 struct vring *vring = &wil->vring_tx[i]; 97 struct vring_tx_data *txdata = &wil->vring_tx_data[i]; 98 99 if (vring->va) { 100 int cid = wil->vring2cid_tid[i][0]; 101 int tid = wil->vring2cid_tid[i][1]; 102 u32 swhead = vring->swhead; 103 u32 swtail = vring->swtail; 104 int used = (vring->size + swhead - swtail) 105 % vring->size; 106 int avail = vring->size - used - 1; 107 char name[10]; 108 char sidle[10]; 109 /* performance monitoring */ 110 cycles_t now = get_cycles(); 111 uint64_t idle = txdata->idle * 100; 112 uint64_t total = now - txdata->begin; 113 114 if (total != 0) { 115 do_div(idle, total); 116 snprintf(sidle, sizeof(sidle), "%3d%%", 117 (int)idle); 118 } else { 119 snprintf(sidle, sizeof(sidle), "N/A"); 120 } 121 txdata->begin = now; 122 txdata->idle = 0ULL; 123 124 snprintf(name, sizeof(name), "tx_%2d", i); 125 126 if (cid < WIL6210_MAX_CID) 127 seq_printf(s, 128 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n", 129 wil->sta[cid].addr, cid, tid, 130 txdata->dot1x_open ? "+" : "-", 131 txdata->agg_wsize, 132 txdata->agg_timeout, 133 txdata->agg_amsdu ? "+" : "-", 134 used, avail, sidle); 135 else 136 seq_printf(s, 137 "\nBroadcast 1x%s [%3d|%3d] idle %s\n", 138 txdata->dot1x_open ? "+" : "-", 139 used, avail, sidle); 140 141 wil_print_vring(s, wil, name, vring, '_', 'H'); 142 } 143 } 144 145 return 0; 146 } 147 148 static int wil_vring_seq_open(struct inode *inode, struct file *file) 149 { 150 return single_open(file, wil_vring_debugfs_show, inode->i_private); 151 } 152 153 static const struct file_operations fops_vring = { 154 .open = wil_vring_seq_open, 155 .release = single_release, 156 .read = seq_read, 157 .llseek = seq_lseek, 158 }; 159 160 static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 161 const char *prefix) 162 { 163 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false); 164 } 165 166 static void wil_print_ring(struct seq_file *s, const char *prefix, 167 void __iomem *off) 168 { 169 struct wil6210_priv *wil = s->private; 170 struct wil6210_mbox_ring r; 171 int rsize; 172 uint i; 173 174 wil_memcpy_fromio_32(&r, off, sizeof(r)); 175 wil_mbox_ring_le2cpus(&r); 176 /* 177 * we just read memory block from NIC. This memory may be 178 * garbage. Check validity before using it. 179 */ 180 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 181 182 seq_printf(s, "ring %s = {\n", prefix); 183 seq_printf(s, " base = 0x%08x\n", r.base); 184 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 185 seq_printf(s, " tail = 0x%08x\n", r.tail); 186 seq_printf(s, " head = 0x%08x\n", r.head); 187 seq_printf(s, " entry size = %d\n", r.entry_size); 188 189 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 190 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 191 sizeof(struct wil6210_mbox_ring_desc)); 192 goto out; 193 } 194 195 if (!wmi_addr(wil, r.base) || 196 !wmi_addr(wil, r.tail) || 197 !wmi_addr(wil, r.head)) { 198 seq_puts(s, " ??? pointers are garbage?\n"); 199 goto out; 200 } 201 202 for (i = 0; i < rsize; i++) { 203 struct wil6210_mbox_ring_desc d; 204 struct wil6210_mbox_hdr hdr; 205 size_t delta = i * sizeof(d); 206 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 207 208 wil_memcpy_fromio_32(&d, x, sizeof(d)); 209 210 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 211 d.sync ? "F" : "E", 212 (r.tail - r.base == delta) ? "t" : " ", 213 (r.head - r.base == delta) ? "h" : " ", 214 le32_to_cpu(d.addr)); 215 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 216 u16 len = le16_to_cpu(hdr.len); 217 218 seq_printf(s, " -> %04x %04x %04x %02x\n", 219 le16_to_cpu(hdr.seq), len, 220 le16_to_cpu(hdr.type), hdr.flags); 221 if (len <= MAX_MBOXITEM_SIZE) { 222 unsigned char databuf[MAX_MBOXITEM_SIZE]; 223 void __iomem *src = wmi_buffer(wil, d.addr) + 224 sizeof(struct wil6210_mbox_hdr); 225 /* 226 * No need to check @src for validity - 227 * we already validated @d.addr while 228 * reading header 229 */ 230 wil_memcpy_fromio_32(databuf, src, len); 231 wil_seq_hexdump(s, databuf, len, " : "); 232 } 233 } else { 234 seq_puts(s, "\n"); 235 } 236 } 237 out: 238 seq_puts(s, "}\n"); 239 } 240 241 static int wil_mbox_debugfs_show(struct seq_file *s, void *data) 242 { 243 struct wil6210_priv *wil = s->private; 244 245 wil_print_ring(s, "tx", wil->csr + HOST_MBOX + 246 offsetof(struct wil6210_mbox_ctl, tx)); 247 wil_print_ring(s, "rx", wil->csr + HOST_MBOX + 248 offsetof(struct wil6210_mbox_ctl, rx)); 249 250 return 0; 251 } 252 253 static int wil_mbox_seq_open(struct inode *inode, struct file *file) 254 { 255 return single_open(file, wil_mbox_debugfs_show, inode->i_private); 256 } 257 258 static const struct file_operations fops_mbox = { 259 .open = wil_mbox_seq_open, 260 .release = single_release, 261 .read = seq_read, 262 .llseek = seq_lseek, 263 }; 264 265 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 266 { 267 writel(val, (void __iomem *)data); 268 wmb(); /* make sure write propagated to HW */ 269 270 return 0; 271 } 272 273 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 274 { 275 *val = readl((void __iomem *)data); 276 277 return 0; 278 } 279 280 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 281 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 282 283 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 284 umode_t mode, 285 struct dentry *parent, 286 void *value) 287 { 288 return debugfs_create_file(name, mode, parent, value, 289 &fops_iomem_x32); 290 } 291 292 static int wil_debugfs_ulong_set(void *data, u64 val) 293 { 294 *(ulong *)data = val; 295 return 0; 296 } 297 298 static int wil_debugfs_ulong_get(void *data, u64 *val) 299 { 300 *val = *(ulong *)data; 301 return 0; 302 } 303 304 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 305 wil_debugfs_ulong_set, "0x%llx\n"); 306 307 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 308 struct dentry *parent, 309 ulong *value) 310 { 311 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong); 312 } 313 314 /** 315 * wil6210_debugfs_init_offset - create set of debugfs files 316 * @wil - driver's context, used for printing 317 * @dbg - directory on the debugfs, where files will be created 318 * @base - base address used in address calculation 319 * @tbl - table with file descriptions. Should be terminated with empty element. 320 * 321 * Creates files accordingly to the @tbl. 322 */ 323 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 324 struct dentry *dbg, void *base, 325 const struct dbg_off * const tbl) 326 { 327 int i; 328 329 for (i = 0; tbl[i].name; i++) { 330 struct dentry *f; 331 332 switch (tbl[i].type) { 333 case doff_u32: 334 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 335 base + tbl[i].off); 336 break; 337 case doff_x32: 338 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 339 base + tbl[i].off); 340 break; 341 case doff_ulong: 342 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode, 343 dbg, base + tbl[i].off); 344 break; 345 case doff_io32: 346 f = wil_debugfs_create_iomem_x32(tbl[i].name, 347 tbl[i].mode, dbg, 348 base + tbl[i].off); 349 break; 350 case doff_u8: 351 f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg, 352 base + tbl[i].off); 353 break; 354 default: 355 f = ERR_PTR(-EINVAL); 356 } 357 if (IS_ERR_OR_NULL(f)) 358 wil_err(wil, "Create file \"%s\": err %ld\n", 359 tbl[i].name, PTR_ERR(f)); 360 } 361 } 362 363 static const struct dbg_off isr_off[] = { 364 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32}, 365 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32}, 366 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32}, 367 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32}, 368 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32}, 369 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32}, 370 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32}, 371 {}, 372 }; 373 374 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 375 const char *name, 376 struct dentry *parent, u32 off) 377 { 378 struct dentry *d = debugfs_create_dir(name, parent); 379 380 if (IS_ERR_OR_NULL(d)) 381 return -ENODEV; 382 383 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 384 isr_off); 385 386 return 0; 387 } 388 389 static const struct dbg_off pseudo_isr_off[] = { 390 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 391 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 392 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 393 {}, 394 }; 395 396 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 397 struct dentry *parent) 398 { 399 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 400 401 if (IS_ERR_OR_NULL(d)) 402 return -ENODEV; 403 404 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 405 pseudo_isr_off); 406 407 return 0; 408 } 409 410 static const struct dbg_off lgc_itr_cnt_off[] = { 411 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 412 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 413 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 414 {}, 415 }; 416 417 static const struct dbg_off tx_itr_cnt_off[] = { 418 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 419 doff_io32}, 420 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 421 doff_io32}, 422 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 423 doff_io32}, 424 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 425 doff_io32}, 426 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 427 doff_io32}, 428 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 429 doff_io32}, 430 {}, 431 }; 432 433 static const struct dbg_off rx_itr_cnt_off[] = { 434 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 435 doff_io32}, 436 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 437 doff_io32}, 438 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 439 doff_io32}, 440 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 441 doff_io32}, 442 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 443 doff_io32}, 444 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 445 doff_io32}, 446 {}, 447 }; 448 449 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 450 struct dentry *parent) 451 { 452 struct dentry *d, *dtx, *drx; 453 454 d = debugfs_create_dir("ITR_CNT", parent); 455 if (IS_ERR_OR_NULL(d)) 456 return -ENODEV; 457 458 dtx = debugfs_create_dir("TX", d); 459 drx = debugfs_create_dir("RX", d); 460 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx)) 461 return -ENODEV; 462 463 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 464 lgc_itr_cnt_off); 465 466 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 467 tx_itr_cnt_off); 468 469 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 470 rx_itr_cnt_off); 471 return 0; 472 } 473 474 static int wil_memread_debugfs_show(struct seq_file *s, void *data) 475 { 476 struct wil6210_priv *wil = s->private; 477 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 478 479 if (a) 480 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a)); 481 else 482 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 483 484 return 0; 485 } 486 487 static int wil_memread_seq_open(struct inode *inode, struct file *file) 488 { 489 return single_open(file, wil_memread_debugfs_show, inode->i_private); 490 } 491 492 static const struct file_operations fops_memread = { 493 .open = wil_memread_seq_open, 494 .release = single_release, 495 .read = seq_read, 496 .llseek = seq_lseek, 497 }; 498 499 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 500 size_t count, loff_t *ppos) 501 { 502 enum { max_count = 4096 }; 503 struct debugfs_blob_wrapper *blob = file->private_data; 504 loff_t pos = *ppos; 505 size_t available = blob->size; 506 void *buf; 507 size_t ret; 508 509 if (pos < 0) 510 return -EINVAL; 511 512 if (pos >= available || !count) 513 return 0; 514 515 if (count > available - pos) 516 count = available - pos; 517 if (count > max_count) 518 count = max_count; 519 520 buf = kmalloc(count, GFP_KERNEL); 521 if (!buf) 522 return -ENOMEM; 523 524 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data + 525 pos, count); 526 527 ret = copy_to_user(user_buf, buf, count); 528 kfree(buf); 529 if (ret == count) 530 return -EFAULT; 531 532 count -= ret; 533 *ppos = pos + count; 534 535 return count; 536 } 537 538 static const struct file_operations fops_ioblob = { 539 .read = wil_read_file_ioblob, 540 .open = simple_open, 541 .llseek = default_llseek, 542 }; 543 544 static 545 struct dentry *wil_debugfs_create_ioblob(const char *name, 546 umode_t mode, 547 struct dentry *parent, 548 struct debugfs_blob_wrapper *blob) 549 { 550 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob); 551 } 552 553 /*---reset---*/ 554 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, 555 size_t len, loff_t *ppos) 556 { 557 struct wil6210_priv *wil = file->private_data; 558 struct net_device *ndev = wil_to_ndev(wil); 559 560 /** 561 * BUG: 562 * this code does NOT sync device state with the rest of system 563 * use with care, debug only!!! 564 */ 565 rtnl_lock(); 566 dev_close(ndev); 567 ndev->flags &= ~IFF_UP; 568 rtnl_unlock(); 569 wil_reset(wil, true); 570 571 return len; 572 } 573 574 static const struct file_operations fops_reset = { 575 .write = wil_write_file_reset, 576 .open = simple_open, 577 }; 578 579 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 580 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 581 size_t len, loff_t *ppos) 582 { 583 struct wil6210_priv *wil = file->private_data; 584 int rc; 585 long channel; 586 bool on; 587 588 char *kbuf = memdup_user_nul(buf, len); 589 590 if (IS_ERR(kbuf)) 591 return PTR_ERR(kbuf); 592 rc = kstrtol(kbuf, 0, &channel); 593 kfree(kbuf); 594 if (rc) 595 return rc; 596 597 if ((channel < 0) || (channel > 4)) { 598 wil_err(wil, "Invalid channel %ld\n", channel); 599 return -EINVAL; 600 } 601 on = !!channel; 602 603 if (on) { 604 rc = wmi_set_channel(wil, (int)channel); 605 if (rc) 606 return rc; 607 } 608 609 rc = wmi_rxon(wil, on); 610 if (rc) 611 return rc; 612 613 return len; 614 } 615 616 static const struct file_operations fops_rxon = { 617 .write = wil_write_file_rxon, 618 .open = simple_open, 619 }; 620 621 /* block ack control, write: 622 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 623 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 624 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 625 */ 626 static ssize_t wil_write_back(struct file *file, const char __user *buf, 627 size_t len, loff_t *ppos) 628 { 629 struct wil6210_priv *wil = file->private_data; 630 int rc; 631 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 632 char cmd[9]; 633 int p1, p2, p3; 634 635 if (!kbuf) 636 return -ENOMEM; 637 638 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 639 if (rc != len) { 640 kfree(kbuf); 641 return rc >= 0 ? -EIO : rc; 642 } 643 644 kbuf[len] = '\0'; 645 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 646 kfree(kbuf); 647 648 if (rc < 0) 649 return rc; 650 if (rc < 2) 651 return -EINVAL; 652 653 if (0 == strcmp(cmd, "add")) { 654 if (rc < 3) { 655 wil_err(wil, "BACK: add require at least 2 params\n"); 656 return -EINVAL; 657 } 658 if (rc < 4) 659 p3 = 0; 660 wmi_addba(wil, p1, p2, p3); 661 } else if (0 == strcmp(cmd, "del_tx")) { 662 if (rc < 3) 663 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 664 wmi_delba_tx(wil, p1, p2); 665 } else if (0 == strcmp(cmd, "del_rx")) { 666 if (rc < 3) { 667 wil_err(wil, 668 "BACK: del_rx require at least 2 params\n"); 669 return -EINVAL; 670 } 671 if (rc < 4) 672 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 673 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3); 674 } else { 675 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 676 return -EINVAL; 677 } 678 679 return len; 680 } 681 682 static ssize_t wil_read_back(struct file *file, char __user *user_buf, 683 size_t count, loff_t *ppos) 684 { 685 static const char text[] = "block ack control, write:\n" 686 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 687 "If missing, <timeout> defaults to 0\n" 688 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 689 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 690 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 691 692 return simple_read_from_buffer(user_buf, count, ppos, text, 693 sizeof(text)); 694 } 695 696 static const struct file_operations fops_back = { 697 .read = wil_read_back, 698 .write = wil_write_back, 699 .open = simple_open, 700 }; 701 702 /* pmc control, write: 703 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 704 * - "free" to release memory allocated for PMC 705 */ 706 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 707 size_t len, loff_t *ppos) 708 { 709 struct wil6210_priv *wil = file->private_data; 710 int rc; 711 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 712 char cmd[9]; 713 int num_descs, desc_size; 714 715 if (!kbuf) 716 return -ENOMEM; 717 718 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 719 if (rc != len) { 720 kfree(kbuf); 721 return rc >= 0 ? -EIO : rc; 722 } 723 724 kbuf[len] = '\0'; 725 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 726 kfree(kbuf); 727 728 if (rc < 0) 729 return rc; 730 731 if (rc < 1) { 732 wil_err(wil, "pmccfg: no params given\n"); 733 return -EINVAL; 734 } 735 736 if (0 == strcmp(cmd, "alloc")) { 737 if (rc != 3) { 738 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 739 return -EINVAL; 740 } 741 wil_pmc_alloc(wil, num_descs, desc_size); 742 } else if (0 == strcmp(cmd, "free")) { 743 if (rc != 1) { 744 wil_err(wil, "pmccfg: free does not have any params\n"); 745 return -EINVAL; 746 } 747 wil_pmc_free(wil, true); 748 } else { 749 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 750 return -EINVAL; 751 } 752 753 return len; 754 } 755 756 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 757 size_t count, loff_t *ppos) 758 { 759 struct wil6210_priv *wil = file->private_data; 760 char text[256]; 761 char help[] = "pmc control, write:\n" 762 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 763 " - \"free\" to free memory allocated for pmc\n"; 764 765 sprintf(text, "Last command status: %d\n\n%s", 766 wil_pmc_last_cmd_status(wil), 767 help); 768 769 return simple_read_from_buffer(user_buf, count, ppos, text, 770 strlen(text) + 1); 771 } 772 773 static const struct file_operations fops_pmccfg = { 774 .read = wil_read_pmccfg, 775 .write = wil_write_pmccfg, 776 .open = simple_open, 777 }; 778 779 static const struct file_operations fops_pmcdata = { 780 .open = simple_open, 781 .read = wil_pmc_read, 782 .llseek = wil_pmc_llseek, 783 }; 784 785 /*---tx_mgmt---*/ 786 /* Write mgmt frame to this file to send it */ 787 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 788 size_t len, loff_t *ppos) 789 { 790 struct wil6210_priv *wil = file->private_data; 791 struct wiphy *wiphy = wil_to_wiphy(wil); 792 struct wireless_dev *wdev = wil_to_wdev(wil); 793 struct cfg80211_mgmt_tx_params params; 794 int rc; 795 void *frame = kmalloc(len, GFP_KERNEL); 796 797 if (!frame) 798 return -ENOMEM; 799 800 if (copy_from_user(frame, buf, len)) { 801 kfree(frame); 802 return -EIO; 803 } 804 805 params.buf = frame; 806 params.len = len; 807 params.chan = wdev->preset_chandef.chan; 808 809 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 810 811 kfree(frame); 812 wil_info(wil, "%s() -> %d\n", __func__, rc); 813 814 return len; 815 } 816 817 static const struct file_operations fops_txmgmt = { 818 .write = wil_write_file_txmgmt, 819 .open = simple_open, 820 }; 821 822 /* Write WMI command (w/o mbox header) to this file to send it 823 * WMI starts from wil6210_mbox_hdr_wmi header 824 */ 825 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 826 size_t len, loff_t *ppos) 827 { 828 struct wil6210_priv *wil = file->private_data; 829 struct wil6210_mbox_hdr_wmi *wmi; 830 void *cmd; 831 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi); 832 u16 cmdid; 833 int rc, rc1; 834 835 if (cmdlen <= 0) 836 return -EINVAL; 837 838 wmi = kmalloc(len, GFP_KERNEL); 839 if (!wmi) 840 return -ENOMEM; 841 842 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 843 if (rc < 0) { 844 kfree(wmi); 845 return rc; 846 } 847 848 cmd = &wmi[1]; 849 cmdid = le16_to_cpu(wmi->id); 850 851 rc1 = wmi_send(wil, cmdid, cmd, cmdlen); 852 kfree(wmi); 853 854 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1); 855 856 return rc; 857 } 858 859 static const struct file_operations fops_wmi = { 860 .write = wil_write_file_wmi, 861 .open = simple_open, 862 }; 863 864 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 865 { 866 int i = 0; 867 int len = skb_headlen(skb); 868 void *p = skb->data; 869 int nr_frags = skb_shinfo(skb)->nr_frags; 870 871 seq_printf(s, " len = %d\n", len); 872 wil_seq_hexdump(s, p, len, " : "); 873 874 if (nr_frags) { 875 seq_printf(s, " nr_frags = %d\n", nr_frags); 876 for (i = 0; i < nr_frags; i++) { 877 const struct skb_frag_struct *frag = 878 &skb_shinfo(skb)->frags[i]; 879 880 len = skb_frag_size(frag); 881 p = skb_frag_address_safe(frag); 882 seq_printf(s, " [%2d] : len = %d\n", i, len); 883 wil_seq_hexdump(s, p, len, " : "); 884 } 885 } 886 } 887 888 /*---------Tx/Rx descriptor------------*/ 889 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) 890 { 891 struct wil6210_priv *wil = s->private; 892 struct vring *vring; 893 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS); 894 895 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx; 896 897 if (!vring->va) { 898 if (tx) 899 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index); 900 else 901 seq_puts(s, "No Rx VRING\n"); 902 return 0; 903 } 904 905 if (dbg_txdesc_index < vring->size) { 906 /* use struct vring_tx_desc for Rx as well, 907 * only field used, .dma.length, is the same 908 */ 909 volatile struct vring_tx_desc *d = 910 &vring->va[dbg_txdesc_index].tx; 911 volatile u32 *u = (volatile u32 *)d; 912 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb; 913 914 if (tx) 915 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index, 916 dbg_txdesc_index); 917 else 918 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index); 919 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 920 u[0], u[1], u[2], u[3]); 921 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 922 u[4], u[5], u[6], u[7]); 923 seq_printf(s, " SKB = 0x%p\n", skb); 924 925 if (skb) { 926 skb_get(skb); 927 wil_seq_print_skb(s, skb); 928 kfree_skb(skb); 929 } 930 seq_puts(s, "}\n"); 931 } else { 932 if (tx) 933 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 934 dbg_vring_index, dbg_txdesc_index, 935 vring->size); 936 else 937 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 938 dbg_txdesc_index, vring->size); 939 } 940 941 return 0; 942 } 943 944 static int wil_txdesc_seq_open(struct inode *inode, struct file *file) 945 { 946 return single_open(file, wil_txdesc_debugfs_show, inode->i_private); 947 } 948 949 static const struct file_operations fops_txdesc = { 950 .open = wil_txdesc_seq_open, 951 .release = single_release, 952 .read = seq_read, 953 .llseek = seq_lseek, 954 }; 955 956 /*---------beamforming------------*/ 957 static char *wil_bfstatus_str(u32 status) 958 { 959 switch (status) { 960 case 0: 961 return "Failed"; 962 case 1: 963 return "OK"; 964 case 2: 965 return "Retrying"; 966 default: 967 return "??"; 968 } 969 } 970 971 static bool is_all_zeros(void * const x_, size_t sz) 972 { 973 /* if reply is all-0, ignore this CID */ 974 u32 *x = x_; 975 int n; 976 977 for (n = 0; n < sz / sizeof(*x); n++) 978 if (x[n]) 979 return false; 980 981 return true; 982 } 983 984 static int wil_bf_debugfs_show(struct seq_file *s, void *data) 985 { 986 int rc; 987 int i; 988 struct wil6210_priv *wil = s->private; 989 struct wmi_notify_req_cmd cmd = { 990 .interval_usec = 0, 991 }; 992 struct { 993 struct wil6210_mbox_hdr_wmi wmi; 994 struct wmi_notify_req_done_event evt; 995 } __packed reply; 996 997 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 998 u32 status; 999 1000 cmd.cid = i; 1001 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), 1002 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1003 sizeof(reply), 20); 1004 /* if reply is all-0, ignore this CID */ 1005 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1006 continue; 1007 1008 status = le32_to_cpu(reply.evt.status); 1009 seq_printf(s, "CID %d {\n" 1010 " TSF = 0x%016llx\n" 1011 " TxMCS = %2d TxTpt = %4d\n" 1012 " SQI = %4d\n" 1013 " Status = 0x%08x %s\n" 1014 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1015 " Goodput(rx:tx) %4d:%4d\n" 1016 "}\n", 1017 i, 1018 le64_to_cpu(reply.evt.tsf), 1019 le16_to_cpu(reply.evt.bf_mcs), 1020 le32_to_cpu(reply.evt.tx_tpt), 1021 reply.evt.sqi, 1022 status, wil_bfstatus_str(status), 1023 le16_to_cpu(reply.evt.my_rx_sector), 1024 le16_to_cpu(reply.evt.my_tx_sector), 1025 le16_to_cpu(reply.evt.other_rx_sector), 1026 le16_to_cpu(reply.evt.other_tx_sector), 1027 le32_to_cpu(reply.evt.rx_goodput), 1028 le32_to_cpu(reply.evt.tx_goodput)); 1029 } 1030 return 0; 1031 } 1032 1033 static int wil_bf_seq_open(struct inode *inode, struct file *file) 1034 { 1035 return single_open(file, wil_bf_debugfs_show, inode->i_private); 1036 } 1037 1038 static const struct file_operations fops_bf = { 1039 .open = wil_bf_seq_open, 1040 .release = single_release, 1041 .read = seq_read, 1042 .llseek = seq_lseek, 1043 }; 1044 1045 /*---------SSID------------*/ 1046 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, 1047 size_t count, loff_t *ppos) 1048 { 1049 struct wil6210_priv *wil = file->private_data; 1050 struct wireless_dev *wdev = wil_to_wdev(wil); 1051 1052 return simple_read_from_buffer(user_buf, count, ppos, 1053 wdev->ssid, wdev->ssid_len); 1054 } 1055 1056 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, 1057 size_t count, loff_t *ppos) 1058 { 1059 struct wil6210_priv *wil = file->private_data; 1060 struct wireless_dev *wdev = wil_to_wdev(wil); 1061 struct net_device *ndev = wil_to_ndev(wil); 1062 1063 if (*ppos != 0) { 1064 wil_err(wil, "Unable to set SSID substring from [%d]\n", 1065 (int)*ppos); 1066 return -EINVAL; 1067 } 1068 1069 if (count > sizeof(wdev->ssid)) { 1070 wil_err(wil, "SSID too long, len = %d\n", (int)count); 1071 return -EINVAL; 1072 } 1073 if (netif_running(ndev)) { 1074 wil_err(wil, "Unable to change SSID on running interface\n"); 1075 return -EINVAL; 1076 } 1077 1078 wdev->ssid_len = count; 1079 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, 1080 buf, count); 1081 } 1082 1083 static const struct file_operations fops_ssid = { 1084 .read = wil_read_file_ssid, 1085 .write = wil_write_file_ssid, 1086 .open = simple_open, 1087 }; 1088 1089 /*---------temp------------*/ 1090 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 1091 { 1092 switch (t) { 1093 case 0: 1094 case ~(u32)0: 1095 seq_printf(s, "%s N/A\n", prefix); 1096 break; 1097 default: 1098 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 1099 break; 1100 } 1101 } 1102 1103 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 1104 { 1105 struct wil6210_priv *wil = s->private; 1106 u32 t_m, t_r; 1107 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1108 1109 if (rc) { 1110 seq_puts(s, "Failed\n"); 1111 return 0; 1112 } 1113 1114 print_temp(s, "T_mac =", t_m); 1115 print_temp(s, "T_radio =", t_r); 1116 1117 return 0; 1118 } 1119 1120 static int wil_temp_seq_open(struct inode *inode, struct file *file) 1121 { 1122 return single_open(file, wil_temp_debugfs_show, inode->i_private); 1123 } 1124 1125 static const struct file_operations fops_temp = { 1126 .open = wil_temp_seq_open, 1127 .release = single_release, 1128 .read = seq_read, 1129 .llseek = seq_lseek, 1130 }; 1131 1132 /*---------freq------------*/ 1133 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 1134 { 1135 struct wil6210_priv *wil = s->private; 1136 struct wireless_dev *wdev = wil_to_wdev(wil); 1137 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1138 1139 seq_printf(s, "Freq = %d\n", freq); 1140 1141 return 0; 1142 } 1143 1144 static int wil_freq_seq_open(struct inode *inode, struct file *file) 1145 { 1146 return single_open(file, wil_freq_debugfs_show, inode->i_private); 1147 } 1148 1149 static const struct file_operations fops_freq = { 1150 .open = wil_freq_seq_open, 1151 .release = single_release, 1152 .read = seq_read, 1153 .llseek = seq_lseek, 1154 }; 1155 1156 /*---------link------------*/ 1157 static int wil_link_debugfs_show(struct seq_file *s, void *data) 1158 { 1159 struct wil6210_priv *wil = s->private; 1160 struct station_info sinfo; 1161 int i, rc; 1162 1163 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1164 struct wil_sta_info *p = &wil->sta[i]; 1165 char *status = "unknown"; 1166 1167 switch (p->status) { 1168 case wil_sta_unused: 1169 status = "unused "; 1170 break; 1171 case wil_sta_conn_pending: 1172 status = "pending "; 1173 break; 1174 case wil_sta_connected: 1175 status = "connected"; 1176 break; 1177 } 1178 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1179 1180 if (p->status == wil_sta_connected) { 1181 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 1182 if (rc) 1183 return rc; 1184 1185 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 1186 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 1187 seq_printf(s, " SQ = %d\n", sinfo.signal); 1188 } 1189 } 1190 1191 return 0; 1192 } 1193 1194 static int wil_link_seq_open(struct inode *inode, struct file *file) 1195 { 1196 return single_open(file, wil_link_debugfs_show, inode->i_private); 1197 } 1198 1199 static const struct file_operations fops_link = { 1200 .open = wil_link_seq_open, 1201 .release = single_release, 1202 .read = seq_read, 1203 .llseek = seq_lseek, 1204 }; 1205 1206 /*---------info------------*/ 1207 static int wil_info_debugfs_show(struct seq_file *s, void *data) 1208 { 1209 struct wil6210_priv *wil = s->private; 1210 struct net_device *ndev = wil_to_ndev(wil); 1211 int is_ac = power_supply_is_system_supplied(); 1212 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1213 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1214 static ulong rxf_old, txf_old; 1215 ulong rxf = ndev->stats.rx_packets; 1216 ulong txf = ndev->stats.tx_packets; 1217 unsigned int i; 1218 1219 /* >0 : AC; 0 : battery; <0 : error */ 1220 seq_printf(s, "AC powered : %d\n", is_ac); 1221 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1222 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1223 rxf_old = rxf; 1224 txf_old = txf; 1225 1226 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1227 " " __stringify(x) : "" 1228 1229 for (i = 0; i < ndev->num_tx_queues; i++) { 1230 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1231 unsigned long state = txq->state; 1232 1233 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1234 CHECK_QSTATE(DRV_XOFF), 1235 CHECK_QSTATE(STACK_XOFF), 1236 CHECK_QSTATE(FROZEN) 1237 ); 1238 } 1239 #undef CHECK_QSTATE 1240 return 0; 1241 } 1242 1243 static int wil_info_seq_open(struct inode *inode, struct file *file) 1244 { 1245 return single_open(file, wil_info_debugfs_show, inode->i_private); 1246 } 1247 1248 static const struct file_operations fops_info = { 1249 .open = wil_info_seq_open, 1250 .release = single_release, 1251 .read = seq_read, 1252 .llseek = seq_lseek, 1253 }; 1254 1255 /*---------recovery------------*/ 1256 /* mode = [manual|auto] 1257 * state = [idle|pending|running] 1258 */ 1259 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1260 size_t count, loff_t *ppos) 1261 { 1262 struct wil6210_priv *wil = file->private_data; 1263 char buf[80]; 1264 int n; 1265 static const char * const sstate[] = {"idle", "pending", "running"}; 1266 1267 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1268 no_fw_recovery ? "manual" : "auto", 1269 sstate[wil->recovery_state]); 1270 1271 n = min_t(int, n, sizeof(buf)); 1272 1273 return simple_read_from_buffer(user_buf, count, ppos, 1274 buf, n); 1275 } 1276 1277 static ssize_t wil_write_file_recovery(struct file *file, 1278 const char __user *buf_, 1279 size_t count, loff_t *ppos) 1280 { 1281 struct wil6210_priv *wil = file->private_data; 1282 static const char run_command[] = "run"; 1283 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1284 ssize_t rc; 1285 1286 if (wil->recovery_state != fw_recovery_pending) { 1287 wil_err(wil, "No recovery pending\n"); 1288 return -EINVAL; 1289 } 1290 1291 if (*ppos != 0) { 1292 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1293 return -EINVAL; 1294 } 1295 1296 if (count > sizeof(buf)) { 1297 wil_err(wil, "Input too long, len = %d\n", (int)count); 1298 return -EINVAL; 1299 } 1300 1301 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1302 if (rc < 0) 1303 return rc; 1304 1305 buf[rc] = '\0'; 1306 if (0 == strcmp(buf, run_command)) 1307 wil_set_recovery_state(wil, fw_recovery_running); 1308 else 1309 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1310 1311 return rc; 1312 } 1313 1314 static const struct file_operations fops_recovery = { 1315 .read = wil_read_file_recovery, 1316 .write = wil_write_file_recovery, 1317 .open = simple_open, 1318 }; 1319 1320 /*---------Station matrix------------*/ 1321 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1322 { 1323 int i; 1324 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1325 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1326 1327 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout, 1328 r->head_seq_num); 1329 for (i = 0; i < r->buf_size; i++) { 1330 if (i == index) 1331 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1332 else 1333 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1334 } 1335 seq_printf(s, 1336 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n", 1337 r->total, drop_dup + drop_old, drop_dup, drop_old, 1338 r->ssn_last_drop); 1339 } 1340 1341 static void wil_print_rxtid_crypto(struct seq_file *s, int tid, 1342 struct wil_tid_crypto_rx *c) 1343 { 1344 int i; 1345 1346 for (i = 0; i < 4; i++) { 1347 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1348 1349 if (cc->key_set) 1350 goto has_keys; 1351 } 1352 return; 1353 1354 has_keys: 1355 if (tid < WIL_STA_TID_NUM) 1356 seq_printf(s, " [%2d] PN", tid); 1357 else 1358 seq_puts(s, " [GR] PN"); 1359 1360 for (i = 0; i < 4; i++) { 1361 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1362 1363 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", 1364 cc->pn); 1365 } 1366 seq_puts(s, "\n"); 1367 } 1368 1369 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 1370 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1371 { 1372 struct wil6210_priv *wil = s->private; 1373 int i, tid, mcs; 1374 1375 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1376 struct wil_sta_info *p = &wil->sta[i]; 1377 char *status = "unknown"; 1378 1379 switch (p->status) { 1380 case wil_sta_unused: 1381 status = "unused "; 1382 break; 1383 case wil_sta_conn_pending: 1384 status = "pending "; 1385 break; 1386 case wil_sta_connected: 1387 status = "connected"; 1388 break; 1389 } 1390 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1391 1392 if (p->status == wil_sta_connected) { 1393 spin_lock_bh(&p->tid_rx_lock); 1394 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1395 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1396 struct wil_tid_crypto_rx *c = 1397 &p->tid_crypto_rx[tid]; 1398 1399 if (r) { 1400 seq_printf(s, " [%2d] ", tid); 1401 wil_print_rxtid(s, r); 1402 } 1403 1404 wil_print_rxtid_crypto(s, tid, c); 1405 } 1406 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, 1407 &p->group_crypto_rx); 1408 spin_unlock_bh(&p->tid_rx_lock); 1409 seq_printf(s, 1410 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", 1411 p->stats.rx_non_data_frame, 1412 p->stats.rx_short_frame, 1413 p->stats.rx_large_frame, 1414 p->stats.rx_replay); 1415 1416 seq_puts(s, "Rx/MCS:"); 1417 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1418 mcs++) 1419 seq_printf(s, " %lld", 1420 p->stats.rx_per_mcs[mcs]); 1421 seq_puts(s, "\n"); 1422 } 1423 } 1424 1425 return 0; 1426 } 1427 1428 static int wil_sta_seq_open(struct inode *inode, struct file *file) 1429 { 1430 return single_open(file, wil_sta_debugfs_show, inode->i_private); 1431 } 1432 1433 static const struct file_operations fops_sta = { 1434 .open = wil_sta_seq_open, 1435 .release = single_release, 1436 .read = seq_read, 1437 .llseek = seq_lseek, 1438 }; 1439 1440 /*----------------*/ 1441 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 1442 struct dentry *dbg) 1443 { 1444 int i; 1445 char name[32]; 1446 1447 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 1448 struct debugfs_blob_wrapper *blob = &wil->blobs[i]; 1449 const struct fw_map *map = &fw_mapping[i]; 1450 1451 if (!map->name) 1452 continue; 1453 1454 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 1455 blob->size = map->to - map->from; 1456 snprintf(name, sizeof(name), "blob_%s", map->name); 1457 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob); 1458 } 1459 } 1460 1461 /* misc files */ 1462 static const struct { 1463 const char *name; 1464 umode_t mode; 1465 const struct file_operations *fops; 1466 } dbg_files[] = { 1467 {"mbox", S_IRUGO, &fops_mbox}, 1468 {"vrings", S_IRUGO, &fops_vring}, 1469 {"stations", S_IRUGO, &fops_sta}, 1470 {"desc", S_IRUGO, &fops_txdesc}, 1471 {"bf", S_IRUGO, &fops_bf}, 1472 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid}, 1473 {"mem_val", S_IRUGO, &fops_memread}, 1474 {"reset", S_IWUSR, &fops_reset}, 1475 {"rxon", S_IWUSR, &fops_rxon}, 1476 {"tx_mgmt", S_IWUSR, &fops_txmgmt}, 1477 {"wmi_send", S_IWUSR, &fops_wmi}, 1478 {"back", S_IRUGO | S_IWUSR, &fops_back}, 1479 {"pmccfg", S_IRUGO | S_IWUSR, &fops_pmccfg}, 1480 {"pmcdata", S_IRUGO, &fops_pmcdata}, 1481 {"temp", S_IRUGO, &fops_temp}, 1482 {"freq", S_IRUGO, &fops_freq}, 1483 {"link", S_IRUGO, &fops_link}, 1484 {"info", S_IRUGO, &fops_info}, 1485 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery}, 1486 }; 1487 1488 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 1489 struct dentry *dbg) 1490 { 1491 int i; 1492 1493 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 1494 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 1495 wil, dbg_files[i].fops); 1496 } 1497 1498 /* interrupt control blocks */ 1499 static const struct { 1500 const char *name; 1501 u32 icr_off; 1502 } dbg_icr[] = { 1503 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 1504 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 1505 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 1506 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 1507 }; 1508 1509 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 1510 struct dentry *dbg) 1511 { 1512 int i; 1513 1514 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 1515 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 1516 dbg_icr[i].icr_off); 1517 } 1518 1519 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 1520 offsetof(struct wil6210_priv, name), type} 1521 1522 /* fields in struct wil6210_priv */ 1523 static const struct dbg_off dbg_wil_off[] = { 1524 WIL_FIELD(privacy, S_IRUGO, doff_u32), 1525 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong), 1526 WIL_FIELD(fw_version, S_IRUGO, doff_u32), 1527 WIL_FIELD(hw_version, S_IRUGO, doff_x32), 1528 WIL_FIELD(recovery_count, S_IRUGO, doff_u32), 1529 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32), 1530 WIL_FIELD(discovery_mode, S_IRUGO | S_IWUSR, doff_u8), 1531 {}, 1532 }; 1533 1534 static const struct dbg_off dbg_wil_regs[] = { 1535 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 1536 doff_io32}, 1537 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 1538 {}, 1539 }; 1540 1541 /* static parameters */ 1542 static const struct dbg_off dbg_statics[] = { 1543 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32}, 1544 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32}, 1545 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32}, 1546 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh, 1547 doff_u32}, 1548 {}, 1549 }; 1550 1551 int wil6210_debugfs_init(struct wil6210_priv *wil) 1552 { 1553 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 1554 wil_to_wiphy(wil)->debugfsdir); 1555 1556 if (IS_ERR_OR_NULL(dbg)) 1557 return -ENODEV; 1558 1559 wil_pmc_init(wil); 1560 1561 wil6210_debugfs_init_files(wil, dbg); 1562 wil6210_debugfs_init_isr(wil, dbg); 1563 wil6210_debugfs_init_blobs(wil, dbg); 1564 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 1565 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 1566 dbg_wil_regs); 1567 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 1568 1569 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1570 1571 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1572 1573 return 0; 1574 } 1575 1576 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1577 { 1578 debugfs_remove_recursive(wil->debug); 1579 wil->debug = NULL; 1580 1581 /* free pmc memory without sending command to fw, as it will 1582 * be reset on the way down anyway 1583 */ 1584 wil_pmc_free(wil, false); 1585 } 1586