1 /* 2 * Copyright (c) 2012-2015 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 }; 41 42 /* offset to "wil" */ 43 struct dbg_off { 44 const char *name; 45 umode_t mode; 46 ulong off; 47 enum dbg_off_type type; 48 }; 49 50 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil, 51 const char *name, struct vring *vring, 52 char _s, char _h) 53 { 54 void __iomem *x = wmi_addr(wil, vring->hwtail); 55 u32 v; 56 57 seq_printf(s, "VRING %s = {\n", name); 58 seq_printf(s, " pa = %pad\n", &vring->pa); 59 seq_printf(s, " va = 0x%p\n", vring->va); 60 seq_printf(s, " size = %d\n", vring->size); 61 seq_printf(s, " swtail = %d\n", vring->swtail); 62 seq_printf(s, " swhead = %d\n", vring->swhead); 63 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail); 64 if (x) { 65 v = readl(x); 66 seq_printf(s, "0x%08x = %d\n", v, v); 67 } else { 68 seq_puts(s, "???\n"); 69 } 70 71 if (vring->va && (vring->size < 1025)) { 72 uint i; 73 74 for (i = 0; i < vring->size; i++) { 75 volatile struct vring_tx_desc *d = &vring->va[i].tx; 76 77 if ((i % 64) == 0 && (i != 0)) 78 seq_puts(s, "\n"); 79 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 80 _s : (vring->ctx[i].skb ? _h : 'h')); 81 } 82 seq_puts(s, "\n"); 83 } 84 seq_puts(s, "}\n"); 85 } 86 87 static int wil_vring_debugfs_show(struct seq_file *s, void *data) 88 { 89 uint i; 90 struct wil6210_priv *wil = s->private; 91 92 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_'); 93 94 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 95 struct vring *vring = &wil->vring_tx[i]; 96 struct vring_tx_data *txdata = &wil->vring_tx_data[i]; 97 98 if (vring->va) { 99 int cid = wil->vring2cid_tid[i][0]; 100 int tid = wil->vring2cid_tid[i][1]; 101 u32 swhead = vring->swhead; 102 u32 swtail = vring->swtail; 103 int used = (vring->size + swhead - swtail) 104 % vring->size; 105 int avail = vring->size - used - 1; 106 char name[10]; 107 char sidle[10]; 108 /* performance monitoring */ 109 cycles_t now = get_cycles(); 110 uint64_t idle = txdata->idle * 100; 111 uint64_t total = now - txdata->begin; 112 113 if (total != 0) { 114 do_div(idle, total); 115 snprintf(sidle, sizeof(sidle), "%3d%%", 116 (int)idle); 117 } else { 118 snprintf(sidle, sizeof(sidle), "N/A"); 119 } 120 txdata->begin = now; 121 txdata->idle = 0ULL; 122 123 snprintf(name, sizeof(name), "tx_%2d", i); 124 125 if (cid < WIL6210_MAX_CID) 126 seq_printf(s, 127 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n", 128 wil->sta[cid].addr, cid, tid, 129 txdata->dot1x_open ? "+" : "-", 130 txdata->agg_wsize, 131 txdata->agg_timeout, 132 txdata->agg_amsdu ? "+" : "-", 133 used, avail, sidle); 134 else 135 seq_printf(s, 136 "\nBroadcast 1x%s [%3d|%3d] idle %s\n", 137 txdata->dot1x_open ? "+" : "-", 138 used, avail, sidle); 139 140 wil_print_vring(s, wil, name, vring, '_', 'H'); 141 } 142 } 143 144 return 0; 145 } 146 147 static int wil_vring_seq_open(struct inode *inode, struct file *file) 148 { 149 return single_open(file, wil_vring_debugfs_show, inode->i_private); 150 } 151 152 static const struct file_operations fops_vring = { 153 .open = wil_vring_seq_open, 154 .release = single_release, 155 .read = seq_read, 156 .llseek = seq_lseek, 157 }; 158 159 static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 160 const char *prefix) 161 { 162 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false); 163 } 164 165 static void wil_print_ring(struct seq_file *s, const char *prefix, 166 void __iomem *off) 167 { 168 struct wil6210_priv *wil = s->private; 169 struct wil6210_mbox_ring r; 170 int rsize; 171 uint i; 172 173 wil_memcpy_fromio_32(&r, off, sizeof(r)); 174 wil_mbox_ring_le2cpus(&r); 175 /* 176 * we just read memory block from NIC. This memory may be 177 * garbage. Check validity before using it. 178 */ 179 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 180 181 seq_printf(s, "ring %s = {\n", prefix); 182 seq_printf(s, " base = 0x%08x\n", r.base); 183 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 184 seq_printf(s, " tail = 0x%08x\n", r.tail); 185 seq_printf(s, " head = 0x%08x\n", r.head); 186 seq_printf(s, " entry size = %d\n", r.entry_size); 187 188 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 189 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 190 sizeof(struct wil6210_mbox_ring_desc)); 191 goto out; 192 } 193 194 if (!wmi_addr(wil, r.base) || 195 !wmi_addr(wil, r.tail) || 196 !wmi_addr(wil, r.head)) { 197 seq_puts(s, " ??? pointers are garbage?\n"); 198 goto out; 199 } 200 201 for (i = 0; i < rsize; i++) { 202 struct wil6210_mbox_ring_desc d; 203 struct wil6210_mbox_hdr hdr; 204 size_t delta = i * sizeof(d); 205 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 206 207 wil_memcpy_fromio_32(&d, x, sizeof(d)); 208 209 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 210 d.sync ? "F" : "E", 211 (r.tail - r.base == delta) ? "t" : " ", 212 (r.head - r.base == delta) ? "h" : " ", 213 le32_to_cpu(d.addr)); 214 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 215 u16 len = le16_to_cpu(hdr.len); 216 217 seq_printf(s, " -> %04x %04x %04x %02x\n", 218 le16_to_cpu(hdr.seq), len, 219 le16_to_cpu(hdr.type), hdr.flags); 220 if (len <= MAX_MBOXITEM_SIZE) { 221 unsigned char databuf[MAX_MBOXITEM_SIZE]; 222 void __iomem *src = wmi_buffer(wil, d.addr) + 223 sizeof(struct wil6210_mbox_hdr); 224 /* 225 * No need to check @src for validity - 226 * we already validated @d.addr while 227 * reading header 228 */ 229 wil_memcpy_fromio_32(databuf, src, len); 230 wil_seq_hexdump(s, databuf, len, " : "); 231 } 232 } else { 233 seq_puts(s, "\n"); 234 } 235 } 236 out: 237 seq_puts(s, "}\n"); 238 } 239 240 static int wil_mbox_debugfs_show(struct seq_file *s, void *data) 241 { 242 struct wil6210_priv *wil = s->private; 243 244 wil_print_ring(s, "tx", wil->csr + HOST_MBOX + 245 offsetof(struct wil6210_mbox_ctl, tx)); 246 wil_print_ring(s, "rx", wil->csr + HOST_MBOX + 247 offsetof(struct wil6210_mbox_ctl, rx)); 248 249 return 0; 250 } 251 252 static int wil_mbox_seq_open(struct inode *inode, struct file *file) 253 { 254 return single_open(file, wil_mbox_debugfs_show, inode->i_private); 255 } 256 257 static const struct file_operations fops_mbox = { 258 .open = wil_mbox_seq_open, 259 .release = single_release, 260 .read = seq_read, 261 .llseek = seq_lseek, 262 }; 263 264 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 265 { 266 writel(val, (void __iomem *)data); 267 wmb(); /* make sure write propagated to HW */ 268 269 return 0; 270 } 271 272 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 273 { 274 *val = readl((void __iomem *)data); 275 276 return 0; 277 } 278 279 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 280 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 281 282 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 283 umode_t mode, 284 struct dentry *parent, 285 void *value) 286 { 287 return debugfs_create_file(name, mode, parent, value, 288 &fops_iomem_x32); 289 } 290 291 static int wil_debugfs_ulong_set(void *data, u64 val) 292 { 293 *(ulong *)data = val; 294 return 0; 295 } 296 297 static int wil_debugfs_ulong_get(void *data, u64 *val) 298 { 299 *val = *(ulong *)data; 300 return 0; 301 } 302 303 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 304 wil_debugfs_ulong_set, "0x%llx\n"); 305 306 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 307 struct dentry *parent, 308 ulong *value) 309 { 310 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong); 311 } 312 313 /** 314 * wil6210_debugfs_init_offset - create set of debugfs files 315 * @wil - driver's context, used for printing 316 * @dbg - directory on the debugfs, where files will be created 317 * @base - base address used in address calculation 318 * @tbl - table with file descriptions. Should be terminated with empty element. 319 * 320 * Creates files accordingly to the @tbl. 321 */ 322 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 323 struct dentry *dbg, void *base, 324 const struct dbg_off * const tbl) 325 { 326 int i; 327 328 for (i = 0; tbl[i].name; i++) { 329 struct dentry *f; 330 331 switch (tbl[i].type) { 332 case doff_u32: 333 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 334 base + tbl[i].off); 335 break; 336 case doff_x32: 337 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 338 base + tbl[i].off); 339 break; 340 case doff_ulong: 341 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode, 342 dbg, base + tbl[i].off); 343 break; 344 case doff_io32: 345 f = wil_debugfs_create_iomem_x32(tbl[i].name, 346 tbl[i].mode, dbg, 347 base + tbl[i].off); 348 break; 349 default: 350 f = ERR_PTR(-EINVAL); 351 } 352 if (IS_ERR_OR_NULL(f)) 353 wil_err(wil, "Create file \"%s\": err %ld\n", 354 tbl[i].name, PTR_ERR(f)); 355 } 356 } 357 358 static const struct dbg_off isr_off[] = { 359 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32}, 360 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32}, 361 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32}, 362 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32}, 363 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32}, 364 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32}, 365 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32}, 366 {}, 367 }; 368 369 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 370 const char *name, 371 struct dentry *parent, u32 off) 372 { 373 struct dentry *d = debugfs_create_dir(name, parent); 374 375 if (IS_ERR_OR_NULL(d)) 376 return -ENODEV; 377 378 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 379 isr_off); 380 381 return 0; 382 } 383 384 static const struct dbg_off pseudo_isr_off[] = { 385 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 386 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 387 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 388 {}, 389 }; 390 391 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 392 struct dentry *parent) 393 { 394 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 395 396 if (IS_ERR_OR_NULL(d)) 397 return -ENODEV; 398 399 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 400 pseudo_isr_off); 401 402 return 0; 403 } 404 405 static const struct dbg_off lgc_itr_cnt_off[] = { 406 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 407 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 408 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 409 {}, 410 }; 411 412 static const struct dbg_off tx_itr_cnt_off[] = { 413 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 414 doff_io32}, 415 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 416 doff_io32}, 417 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 418 doff_io32}, 419 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 420 doff_io32}, 421 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 422 doff_io32}, 423 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 424 doff_io32}, 425 {}, 426 }; 427 428 static const struct dbg_off rx_itr_cnt_off[] = { 429 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 430 doff_io32}, 431 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 432 doff_io32}, 433 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 434 doff_io32}, 435 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 436 doff_io32}, 437 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 438 doff_io32}, 439 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 440 doff_io32}, 441 {}, 442 }; 443 444 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 445 struct dentry *parent) 446 { 447 struct dentry *d, *dtx, *drx; 448 449 d = debugfs_create_dir("ITR_CNT", parent); 450 if (IS_ERR_OR_NULL(d)) 451 return -ENODEV; 452 453 dtx = debugfs_create_dir("TX", d); 454 drx = debugfs_create_dir("RX", d); 455 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx)) 456 return -ENODEV; 457 458 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 459 lgc_itr_cnt_off); 460 461 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 462 tx_itr_cnt_off); 463 464 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 465 rx_itr_cnt_off); 466 return 0; 467 } 468 469 static int wil_memread_debugfs_show(struct seq_file *s, void *data) 470 { 471 struct wil6210_priv *wil = s->private; 472 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 473 474 if (a) 475 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a)); 476 else 477 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 478 479 return 0; 480 } 481 482 static int wil_memread_seq_open(struct inode *inode, struct file *file) 483 { 484 return single_open(file, wil_memread_debugfs_show, inode->i_private); 485 } 486 487 static const struct file_operations fops_memread = { 488 .open = wil_memread_seq_open, 489 .release = single_release, 490 .read = seq_read, 491 .llseek = seq_lseek, 492 }; 493 494 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 495 size_t count, loff_t *ppos) 496 { 497 enum { max_count = 4096 }; 498 struct debugfs_blob_wrapper *blob = file->private_data; 499 loff_t pos = *ppos; 500 size_t available = blob->size; 501 void *buf; 502 size_t ret; 503 504 if (pos < 0) 505 return -EINVAL; 506 507 if (pos >= available || !count) 508 return 0; 509 510 if (count > available - pos) 511 count = available - pos; 512 if (count > max_count) 513 count = max_count; 514 515 buf = kmalloc(count, GFP_KERNEL); 516 if (!buf) 517 return -ENOMEM; 518 519 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data + 520 pos, count); 521 522 ret = copy_to_user(user_buf, buf, count); 523 kfree(buf); 524 if (ret == count) 525 return -EFAULT; 526 527 count -= ret; 528 *ppos = pos + count; 529 530 return count; 531 } 532 533 static const struct file_operations fops_ioblob = { 534 .read = wil_read_file_ioblob, 535 .open = simple_open, 536 .llseek = default_llseek, 537 }; 538 539 static 540 struct dentry *wil_debugfs_create_ioblob(const char *name, 541 umode_t mode, 542 struct dentry *parent, 543 struct debugfs_blob_wrapper *blob) 544 { 545 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob); 546 } 547 548 /*---reset---*/ 549 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, 550 size_t len, loff_t *ppos) 551 { 552 struct wil6210_priv *wil = file->private_data; 553 struct net_device *ndev = wil_to_ndev(wil); 554 555 /** 556 * BUG: 557 * this code does NOT sync device state with the rest of system 558 * use with care, debug only!!! 559 */ 560 rtnl_lock(); 561 dev_close(ndev); 562 ndev->flags &= ~IFF_UP; 563 rtnl_unlock(); 564 wil_reset(wil, true); 565 566 return len; 567 } 568 569 static const struct file_operations fops_reset = { 570 .write = wil_write_file_reset, 571 .open = simple_open, 572 }; 573 574 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 575 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 576 size_t len, loff_t *ppos) 577 { 578 struct wil6210_priv *wil = file->private_data; 579 int rc; 580 long channel; 581 bool on; 582 583 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 584 585 if (!kbuf) 586 return -ENOMEM; 587 if (copy_from_user(kbuf, buf, len)) { 588 kfree(kbuf); 589 return -EIO; 590 } 591 592 kbuf[len] = '\0'; 593 rc = kstrtol(kbuf, 0, &channel); 594 kfree(kbuf); 595 if (rc) 596 return rc; 597 598 if ((channel < 0) || (channel > 4)) { 599 wil_err(wil, "Invalid channel %ld\n", channel); 600 return -EINVAL; 601 } 602 on = !!channel; 603 604 if (on) { 605 rc = wmi_set_channel(wil, (int)channel); 606 if (rc) 607 return rc; 608 } 609 610 rc = wmi_rxon(wil, on); 611 if (rc) 612 return rc; 613 614 return len; 615 } 616 617 static const struct file_operations fops_rxon = { 618 .write = wil_write_file_rxon, 619 .open = simple_open, 620 }; 621 622 /* block ack control, write: 623 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 624 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 625 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 626 */ 627 static ssize_t wil_write_back(struct file *file, const char __user *buf, 628 size_t len, loff_t *ppos) 629 { 630 struct wil6210_priv *wil = file->private_data; 631 int rc; 632 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 633 char cmd[9]; 634 int p1, p2, p3; 635 636 if (!kbuf) 637 return -ENOMEM; 638 639 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 640 if (rc != len) { 641 kfree(kbuf); 642 return rc >= 0 ? -EIO : rc; 643 } 644 645 kbuf[len] = '\0'; 646 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 647 kfree(kbuf); 648 649 if (rc < 0) 650 return rc; 651 if (rc < 2) 652 return -EINVAL; 653 654 if (0 == strcmp(cmd, "add")) { 655 if (rc < 3) { 656 wil_err(wil, "BACK: add require at least 2 params\n"); 657 return -EINVAL; 658 } 659 if (rc < 4) 660 p3 = 0; 661 wmi_addba(wil, p1, p2, p3); 662 } else if (0 == strcmp(cmd, "del_tx")) { 663 if (rc < 3) 664 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 665 wmi_delba_tx(wil, p1, p2); 666 } else if (0 == strcmp(cmd, "del_rx")) { 667 if (rc < 3) { 668 wil_err(wil, 669 "BACK: del_rx require at least 2 params\n"); 670 return -EINVAL; 671 } 672 if (rc < 4) 673 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 674 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3); 675 } else { 676 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 677 return -EINVAL; 678 } 679 680 return len; 681 } 682 683 static ssize_t wil_read_back(struct file *file, char __user *user_buf, 684 size_t count, loff_t *ppos) 685 { 686 static const char text[] = "block ack control, write:\n" 687 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 688 "If missing, <timeout> defaults to 0\n" 689 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 690 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 691 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 692 693 return simple_read_from_buffer(user_buf, count, ppos, text, 694 sizeof(text)); 695 } 696 697 static const struct file_operations fops_back = { 698 .read = wil_read_back, 699 .write = wil_write_back, 700 .open = simple_open, 701 }; 702 703 /* pmc control, write: 704 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 705 * - "free" to release memory allocated for PMC 706 */ 707 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 708 size_t len, loff_t *ppos) 709 { 710 struct wil6210_priv *wil = file->private_data; 711 int rc; 712 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 713 char cmd[9]; 714 int num_descs, desc_size; 715 716 if (!kbuf) 717 return -ENOMEM; 718 719 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 720 if (rc != len) { 721 kfree(kbuf); 722 return rc >= 0 ? -EIO : rc; 723 } 724 725 kbuf[len] = '\0'; 726 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 727 kfree(kbuf); 728 729 if (rc < 0) 730 return rc; 731 732 if (rc < 1) { 733 wil_err(wil, "pmccfg: no params given\n"); 734 return -EINVAL; 735 } 736 737 if (0 == strcmp(cmd, "alloc")) { 738 if (rc != 3) { 739 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 740 return -EINVAL; 741 } 742 wil_pmc_alloc(wil, num_descs, desc_size); 743 } else if (0 == strcmp(cmd, "free")) { 744 if (rc != 1) { 745 wil_err(wil, "pmccfg: free does not have any params\n"); 746 return -EINVAL; 747 } 748 wil_pmc_free(wil, true); 749 } else { 750 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 751 return -EINVAL; 752 } 753 754 return len; 755 } 756 757 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 758 size_t count, loff_t *ppos) 759 { 760 struct wil6210_priv *wil = file->private_data; 761 char text[256]; 762 char help[] = "pmc control, write:\n" 763 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 764 " - \"free\" to free memory allocated for pmc\n"; 765 766 sprintf(text, "Last command status: %d\n\n%s", 767 wil_pmc_last_cmd_status(wil), 768 help); 769 770 return simple_read_from_buffer(user_buf, count, ppos, text, 771 strlen(text) + 1); 772 } 773 774 static const struct file_operations fops_pmccfg = { 775 .read = wil_read_pmccfg, 776 .write = wil_write_pmccfg, 777 .open = simple_open, 778 }; 779 780 static const struct file_operations fops_pmcdata = { 781 .open = simple_open, 782 .read = wil_pmc_read, 783 .llseek = wil_pmc_llseek, 784 }; 785 786 /*---tx_mgmt---*/ 787 /* Write mgmt frame to this file to send it */ 788 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 789 size_t len, loff_t *ppos) 790 { 791 struct wil6210_priv *wil = file->private_data; 792 struct wiphy *wiphy = wil_to_wiphy(wil); 793 struct wireless_dev *wdev = wil_to_wdev(wil); 794 struct cfg80211_mgmt_tx_params params; 795 int rc; 796 void *frame = kmalloc(len, GFP_KERNEL); 797 798 if (!frame) 799 return -ENOMEM; 800 801 if (copy_from_user(frame, buf, len)) { 802 kfree(frame); 803 return -EIO; 804 } 805 806 params.buf = frame; 807 params.len = len; 808 params.chan = wdev->preset_chandef.chan; 809 810 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 811 812 kfree(frame); 813 wil_info(wil, "%s() -> %d\n", __func__, rc); 814 815 return len; 816 } 817 818 static const struct file_operations fops_txmgmt = { 819 .write = wil_write_file_txmgmt, 820 .open = simple_open, 821 }; 822 823 /* Write WMI command (w/o mbox header) to this file to send it 824 * WMI starts from wil6210_mbox_hdr_wmi header 825 */ 826 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 827 size_t len, loff_t *ppos) 828 { 829 struct wil6210_priv *wil = file->private_data; 830 struct wil6210_mbox_hdr_wmi *wmi; 831 void *cmd; 832 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi); 833 u16 cmdid; 834 int rc, rc1; 835 836 if (cmdlen <= 0) 837 return -EINVAL; 838 839 wmi = kmalloc(len, GFP_KERNEL); 840 if (!wmi) 841 return -ENOMEM; 842 843 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 844 if (rc < 0) { 845 kfree(wmi); 846 return rc; 847 } 848 849 cmd = &wmi[1]; 850 cmdid = le16_to_cpu(wmi->id); 851 852 rc1 = wmi_send(wil, cmdid, cmd, cmdlen); 853 kfree(wmi); 854 855 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1); 856 857 return rc; 858 } 859 860 static const struct file_operations fops_wmi = { 861 .write = wil_write_file_wmi, 862 .open = simple_open, 863 }; 864 865 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 866 { 867 int i = 0; 868 int len = skb_headlen(skb); 869 void *p = skb->data; 870 int nr_frags = skb_shinfo(skb)->nr_frags; 871 872 seq_printf(s, " len = %d\n", len); 873 wil_seq_hexdump(s, p, len, " : "); 874 875 if (nr_frags) { 876 seq_printf(s, " nr_frags = %d\n", nr_frags); 877 for (i = 0; i < nr_frags; i++) { 878 const struct skb_frag_struct *frag = 879 &skb_shinfo(skb)->frags[i]; 880 881 len = skb_frag_size(frag); 882 p = skb_frag_address_safe(frag); 883 seq_printf(s, " [%2d] : len = %d\n", i, len); 884 wil_seq_hexdump(s, p, len, " : "); 885 } 886 } 887 } 888 889 /*---------Tx/Rx descriptor------------*/ 890 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) 891 { 892 struct wil6210_priv *wil = s->private; 893 struct vring *vring; 894 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS); 895 896 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx; 897 898 if (!vring->va) { 899 if (tx) 900 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index); 901 else 902 seq_puts(s, "No Rx VRING\n"); 903 return 0; 904 } 905 906 if (dbg_txdesc_index < vring->size) { 907 /* use struct vring_tx_desc for Rx as well, 908 * only field used, .dma.length, is the same 909 */ 910 volatile struct vring_tx_desc *d = 911 &vring->va[dbg_txdesc_index].tx; 912 volatile u32 *u = (volatile u32 *)d; 913 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb; 914 915 if (tx) 916 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index, 917 dbg_txdesc_index); 918 else 919 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index); 920 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 921 u[0], u[1], u[2], u[3]); 922 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 923 u[4], u[5], u[6], u[7]); 924 seq_printf(s, " SKB = 0x%p\n", skb); 925 926 if (skb) { 927 skb_get(skb); 928 wil_seq_print_skb(s, skb); 929 kfree_skb(skb); 930 } 931 seq_puts(s, "}\n"); 932 } else { 933 if (tx) 934 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 935 dbg_vring_index, dbg_txdesc_index, 936 vring->size); 937 else 938 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 939 dbg_txdesc_index, vring->size); 940 } 941 942 return 0; 943 } 944 945 static int wil_txdesc_seq_open(struct inode *inode, struct file *file) 946 { 947 return single_open(file, wil_txdesc_debugfs_show, inode->i_private); 948 } 949 950 static const struct file_operations fops_txdesc = { 951 .open = wil_txdesc_seq_open, 952 .release = single_release, 953 .read = seq_read, 954 .llseek = seq_lseek, 955 }; 956 957 /*---------beamforming------------*/ 958 static char *wil_bfstatus_str(u32 status) 959 { 960 switch (status) { 961 case 0: 962 return "Failed"; 963 case 1: 964 return "OK"; 965 case 2: 966 return "Retrying"; 967 default: 968 return "??"; 969 } 970 } 971 972 static bool is_all_zeros(void * const x_, size_t sz) 973 { 974 /* if reply is all-0, ignore this CID */ 975 u32 *x = x_; 976 int n; 977 978 for (n = 0; n < sz / sizeof(*x); n++) 979 if (x[n]) 980 return false; 981 982 return true; 983 } 984 985 static int wil_bf_debugfs_show(struct seq_file *s, void *data) 986 { 987 int rc; 988 int i; 989 struct wil6210_priv *wil = s->private; 990 struct wmi_notify_req_cmd cmd = { 991 .interval_usec = 0, 992 }; 993 struct { 994 struct wil6210_mbox_hdr_wmi wmi; 995 struct wmi_notify_req_done_event evt; 996 } __packed reply; 997 998 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 999 u32 status; 1000 1001 cmd.cid = i; 1002 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), 1003 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1004 sizeof(reply), 20); 1005 /* if reply is all-0, ignore this CID */ 1006 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1007 continue; 1008 1009 status = le32_to_cpu(reply.evt.status); 1010 seq_printf(s, "CID %d {\n" 1011 " TSF = 0x%016llx\n" 1012 " TxMCS = %2d TxTpt = %4d\n" 1013 " SQI = %4d\n" 1014 " Status = 0x%08x %s\n" 1015 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1016 " Goodput(rx:tx) %4d:%4d\n" 1017 "}\n", 1018 i, 1019 le64_to_cpu(reply.evt.tsf), 1020 le16_to_cpu(reply.evt.bf_mcs), 1021 le32_to_cpu(reply.evt.tx_tpt), 1022 reply.evt.sqi, 1023 status, wil_bfstatus_str(status), 1024 le16_to_cpu(reply.evt.my_rx_sector), 1025 le16_to_cpu(reply.evt.my_tx_sector), 1026 le16_to_cpu(reply.evt.other_rx_sector), 1027 le16_to_cpu(reply.evt.other_tx_sector), 1028 le32_to_cpu(reply.evt.rx_goodput), 1029 le32_to_cpu(reply.evt.tx_goodput)); 1030 } 1031 return 0; 1032 } 1033 1034 static int wil_bf_seq_open(struct inode *inode, struct file *file) 1035 { 1036 return single_open(file, wil_bf_debugfs_show, inode->i_private); 1037 } 1038 1039 static const struct file_operations fops_bf = { 1040 .open = wil_bf_seq_open, 1041 .release = single_release, 1042 .read = seq_read, 1043 .llseek = seq_lseek, 1044 }; 1045 1046 /*---------SSID------------*/ 1047 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, 1048 size_t count, loff_t *ppos) 1049 { 1050 struct wil6210_priv *wil = file->private_data; 1051 struct wireless_dev *wdev = wil_to_wdev(wil); 1052 1053 return simple_read_from_buffer(user_buf, count, ppos, 1054 wdev->ssid, wdev->ssid_len); 1055 } 1056 1057 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, 1058 size_t count, loff_t *ppos) 1059 { 1060 struct wil6210_priv *wil = file->private_data; 1061 struct wireless_dev *wdev = wil_to_wdev(wil); 1062 struct net_device *ndev = wil_to_ndev(wil); 1063 1064 if (*ppos != 0) { 1065 wil_err(wil, "Unable to set SSID substring from [%d]\n", 1066 (int)*ppos); 1067 return -EINVAL; 1068 } 1069 1070 if (count > sizeof(wdev->ssid)) { 1071 wil_err(wil, "SSID too long, len = %d\n", (int)count); 1072 return -EINVAL; 1073 } 1074 if (netif_running(ndev)) { 1075 wil_err(wil, "Unable to change SSID on running interface\n"); 1076 return -EINVAL; 1077 } 1078 1079 wdev->ssid_len = count; 1080 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, 1081 buf, count); 1082 } 1083 1084 static const struct file_operations fops_ssid = { 1085 .read = wil_read_file_ssid, 1086 .write = wil_write_file_ssid, 1087 .open = simple_open, 1088 }; 1089 1090 /*---------temp------------*/ 1091 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 1092 { 1093 switch (t) { 1094 case 0: 1095 case ~(u32)0: 1096 seq_printf(s, "%s N/A\n", prefix); 1097 break; 1098 default: 1099 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 1100 break; 1101 } 1102 } 1103 1104 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 1105 { 1106 struct wil6210_priv *wil = s->private; 1107 u32 t_m, t_r; 1108 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1109 1110 if (rc) { 1111 seq_puts(s, "Failed\n"); 1112 return 0; 1113 } 1114 1115 print_temp(s, "T_mac =", t_m); 1116 print_temp(s, "T_radio =", t_r); 1117 1118 return 0; 1119 } 1120 1121 static int wil_temp_seq_open(struct inode *inode, struct file *file) 1122 { 1123 return single_open(file, wil_temp_debugfs_show, inode->i_private); 1124 } 1125 1126 static const struct file_operations fops_temp = { 1127 .open = wil_temp_seq_open, 1128 .release = single_release, 1129 .read = seq_read, 1130 .llseek = seq_lseek, 1131 }; 1132 1133 /*---------freq------------*/ 1134 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 1135 { 1136 struct wil6210_priv *wil = s->private; 1137 struct wireless_dev *wdev = wil_to_wdev(wil); 1138 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1139 1140 seq_printf(s, "Freq = %d\n", freq); 1141 1142 return 0; 1143 } 1144 1145 static int wil_freq_seq_open(struct inode *inode, struct file *file) 1146 { 1147 return single_open(file, wil_freq_debugfs_show, inode->i_private); 1148 } 1149 1150 static const struct file_operations fops_freq = { 1151 .open = wil_freq_seq_open, 1152 .release = single_release, 1153 .read = seq_read, 1154 .llseek = seq_lseek, 1155 }; 1156 1157 /*---------link------------*/ 1158 static int wil_link_debugfs_show(struct seq_file *s, void *data) 1159 { 1160 struct wil6210_priv *wil = s->private; 1161 struct station_info sinfo; 1162 int i, rc; 1163 1164 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1165 struct wil_sta_info *p = &wil->sta[i]; 1166 char *status = "unknown"; 1167 1168 switch (p->status) { 1169 case wil_sta_unused: 1170 status = "unused "; 1171 break; 1172 case wil_sta_conn_pending: 1173 status = "pending "; 1174 break; 1175 case wil_sta_connected: 1176 status = "connected"; 1177 break; 1178 } 1179 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1180 1181 if (p->status == wil_sta_connected) { 1182 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 1183 if (rc) 1184 return rc; 1185 1186 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 1187 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 1188 seq_printf(s, " SQ = %d\n", sinfo.signal); 1189 } 1190 } 1191 1192 return 0; 1193 } 1194 1195 static int wil_link_seq_open(struct inode *inode, struct file *file) 1196 { 1197 return single_open(file, wil_link_debugfs_show, inode->i_private); 1198 } 1199 1200 static const struct file_operations fops_link = { 1201 .open = wil_link_seq_open, 1202 .release = single_release, 1203 .read = seq_read, 1204 .llseek = seq_lseek, 1205 }; 1206 1207 /*---------info------------*/ 1208 static int wil_info_debugfs_show(struct seq_file *s, void *data) 1209 { 1210 struct wil6210_priv *wil = s->private; 1211 struct net_device *ndev = wil_to_ndev(wil); 1212 int is_ac = power_supply_is_system_supplied(); 1213 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1214 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1215 static ulong rxf_old, txf_old; 1216 ulong rxf = ndev->stats.rx_packets; 1217 ulong txf = ndev->stats.tx_packets; 1218 unsigned int i; 1219 1220 /* >0 : AC; 0 : battery; <0 : error */ 1221 seq_printf(s, "AC powered : %d\n", is_ac); 1222 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1223 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1224 rxf_old = rxf; 1225 txf_old = txf; 1226 1227 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1228 " " __stringify(x) : "" 1229 1230 for (i = 0; i < ndev->num_tx_queues; i++) { 1231 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1232 unsigned long state = txq->state; 1233 1234 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1235 CHECK_QSTATE(DRV_XOFF), 1236 CHECK_QSTATE(STACK_XOFF), 1237 CHECK_QSTATE(FROZEN) 1238 ); 1239 } 1240 #undef CHECK_QSTATE 1241 return 0; 1242 } 1243 1244 static int wil_info_seq_open(struct inode *inode, struct file *file) 1245 { 1246 return single_open(file, wil_info_debugfs_show, inode->i_private); 1247 } 1248 1249 static const struct file_operations fops_info = { 1250 .open = wil_info_seq_open, 1251 .release = single_release, 1252 .read = seq_read, 1253 .llseek = seq_lseek, 1254 }; 1255 1256 /*---------recovery------------*/ 1257 /* mode = [manual|auto] 1258 * state = [idle|pending|running] 1259 */ 1260 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1261 size_t count, loff_t *ppos) 1262 { 1263 struct wil6210_priv *wil = file->private_data; 1264 char buf[80]; 1265 int n; 1266 static const char * const sstate[] = {"idle", "pending", "running"}; 1267 1268 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1269 no_fw_recovery ? "manual" : "auto", 1270 sstate[wil->recovery_state]); 1271 1272 n = min_t(int, n, sizeof(buf)); 1273 1274 return simple_read_from_buffer(user_buf, count, ppos, 1275 buf, n); 1276 } 1277 1278 static ssize_t wil_write_file_recovery(struct file *file, 1279 const char __user *buf_, 1280 size_t count, loff_t *ppos) 1281 { 1282 struct wil6210_priv *wil = file->private_data; 1283 static const char run_command[] = "run"; 1284 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1285 ssize_t rc; 1286 1287 if (wil->recovery_state != fw_recovery_pending) { 1288 wil_err(wil, "No recovery pending\n"); 1289 return -EINVAL; 1290 } 1291 1292 if (*ppos != 0) { 1293 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1294 return -EINVAL; 1295 } 1296 1297 if (count > sizeof(buf)) { 1298 wil_err(wil, "Input too long, len = %d\n", (int)count); 1299 return -EINVAL; 1300 } 1301 1302 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1303 if (rc < 0) 1304 return rc; 1305 1306 buf[rc] = '\0'; 1307 if (0 == strcmp(buf, run_command)) 1308 wil_set_recovery_state(wil, fw_recovery_running); 1309 else 1310 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1311 1312 return rc; 1313 } 1314 1315 static const struct file_operations fops_recovery = { 1316 .read = wil_read_file_recovery, 1317 .write = wil_write_file_recovery, 1318 .open = simple_open, 1319 }; 1320 1321 /*---------Station matrix------------*/ 1322 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1323 { 1324 int i; 1325 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1326 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1327 1328 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout, 1329 r->head_seq_num); 1330 for (i = 0; i < r->buf_size; i++) { 1331 if (i == index) 1332 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1333 else 1334 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1335 } 1336 seq_printf(s, 1337 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n", 1338 r->total, drop_dup + drop_old, drop_dup, drop_old, 1339 r->ssn_last_drop); 1340 } 1341 1342 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 1343 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1344 { 1345 struct wil6210_priv *wil = s->private; 1346 int i, tid, mcs; 1347 1348 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1349 struct wil_sta_info *p = &wil->sta[i]; 1350 char *status = "unknown"; 1351 1352 switch (p->status) { 1353 case wil_sta_unused: 1354 status = "unused "; 1355 break; 1356 case wil_sta_conn_pending: 1357 status = "pending "; 1358 break; 1359 case wil_sta_connected: 1360 status = "connected"; 1361 break; 1362 } 1363 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1364 1365 if (p->status == wil_sta_connected) { 1366 spin_lock_bh(&p->tid_rx_lock); 1367 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1368 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1369 1370 if (r) { 1371 seq_printf(s, "[%2d] ", tid); 1372 wil_print_rxtid(s, r); 1373 } 1374 } 1375 spin_unlock_bh(&p->tid_rx_lock); 1376 seq_printf(s, 1377 "Rx invalid frame: non-data %lu, short %lu, large %lu\n", 1378 p->stats.rx_non_data_frame, 1379 p->stats.rx_short_frame, 1380 p->stats.rx_large_frame); 1381 1382 seq_puts(s, "Rx/MCS:"); 1383 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1384 mcs++) 1385 seq_printf(s, " %lld", 1386 p->stats.rx_per_mcs[mcs]); 1387 seq_puts(s, "\n"); 1388 } 1389 } 1390 1391 return 0; 1392 } 1393 1394 static int wil_sta_seq_open(struct inode *inode, struct file *file) 1395 { 1396 return single_open(file, wil_sta_debugfs_show, inode->i_private); 1397 } 1398 1399 static const struct file_operations fops_sta = { 1400 .open = wil_sta_seq_open, 1401 .release = single_release, 1402 .read = seq_read, 1403 .llseek = seq_lseek, 1404 }; 1405 1406 /*----------------*/ 1407 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 1408 struct dentry *dbg) 1409 { 1410 int i; 1411 char name[32]; 1412 1413 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 1414 struct debugfs_blob_wrapper *blob = &wil->blobs[i]; 1415 const struct fw_map *map = &fw_mapping[i]; 1416 1417 if (!map->name) 1418 continue; 1419 1420 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 1421 blob->size = map->to - map->from; 1422 snprintf(name, sizeof(name), "blob_%s", map->name); 1423 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob); 1424 } 1425 } 1426 1427 /* misc files */ 1428 static const struct { 1429 const char *name; 1430 umode_t mode; 1431 const struct file_operations *fops; 1432 } dbg_files[] = { 1433 {"mbox", S_IRUGO, &fops_mbox}, 1434 {"vrings", S_IRUGO, &fops_vring}, 1435 {"stations", S_IRUGO, &fops_sta}, 1436 {"desc", S_IRUGO, &fops_txdesc}, 1437 {"bf", S_IRUGO, &fops_bf}, 1438 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid}, 1439 {"mem_val", S_IRUGO, &fops_memread}, 1440 {"reset", S_IWUSR, &fops_reset}, 1441 {"rxon", S_IWUSR, &fops_rxon}, 1442 {"tx_mgmt", S_IWUSR, &fops_txmgmt}, 1443 {"wmi_send", S_IWUSR, &fops_wmi}, 1444 {"back", S_IRUGO | S_IWUSR, &fops_back}, 1445 {"pmccfg", S_IRUGO | S_IWUSR, &fops_pmccfg}, 1446 {"pmcdata", S_IRUGO, &fops_pmcdata}, 1447 {"temp", S_IRUGO, &fops_temp}, 1448 {"freq", S_IRUGO, &fops_freq}, 1449 {"link", S_IRUGO, &fops_link}, 1450 {"info", S_IRUGO, &fops_info}, 1451 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery}, 1452 }; 1453 1454 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 1455 struct dentry *dbg) 1456 { 1457 int i; 1458 1459 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 1460 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 1461 wil, dbg_files[i].fops); 1462 } 1463 1464 /* interrupt control blocks */ 1465 static const struct { 1466 const char *name; 1467 u32 icr_off; 1468 } dbg_icr[] = { 1469 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 1470 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 1471 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 1472 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 1473 }; 1474 1475 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 1476 struct dentry *dbg) 1477 { 1478 int i; 1479 1480 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 1481 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 1482 dbg_icr[i].icr_off); 1483 } 1484 1485 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 1486 offsetof(struct wil6210_priv, name), type} 1487 1488 /* fields in struct wil6210_priv */ 1489 static const struct dbg_off dbg_wil_off[] = { 1490 WIL_FIELD(privacy, S_IRUGO, doff_u32), 1491 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong), 1492 WIL_FIELD(fw_version, S_IRUGO, doff_u32), 1493 WIL_FIELD(hw_version, S_IRUGO, doff_x32), 1494 WIL_FIELD(recovery_count, S_IRUGO, doff_u32), 1495 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32), 1496 {}, 1497 }; 1498 1499 static const struct dbg_off dbg_wil_regs[] = { 1500 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 1501 doff_io32}, 1502 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 1503 {}, 1504 }; 1505 1506 /* static parameters */ 1507 static const struct dbg_off dbg_statics[] = { 1508 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32}, 1509 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32}, 1510 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32}, 1511 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh, 1512 doff_u32}, 1513 {}, 1514 }; 1515 1516 int wil6210_debugfs_init(struct wil6210_priv *wil) 1517 { 1518 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 1519 wil_to_wiphy(wil)->debugfsdir); 1520 1521 if (IS_ERR_OR_NULL(dbg)) 1522 return -ENODEV; 1523 1524 wil_pmc_init(wil); 1525 1526 wil6210_debugfs_init_files(wil, dbg); 1527 wil6210_debugfs_init_isr(wil, dbg); 1528 wil6210_debugfs_init_blobs(wil, dbg); 1529 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 1530 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 1531 dbg_wil_regs); 1532 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 1533 1534 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1535 1536 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1537 1538 return 0; 1539 } 1540 1541 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1542 { 1543 debugfs_remove_recursive(wil->debug); 1544 wil->debug = NULL; 1545 1546 /* free pmc memory without sending command to fw, as it will 1547 * be reset on the way down anyway 1548 */ 1549 wil_pmc_free(wil, false); 1550 } 1551