1 /* 2 * Copyright (c) 2012-2017 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_halp_vote(wil); 175 176 wil_memcpy_fromio_32(&r, off, sizeof(r)); 177 wil_mbox_ring_le2cpus(&r); 178 /* 179 * we just read memory block from NIC. This memory may be 180 * garbage. Check validity before using it. 181 */ 182 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 183 184 seq_printf(s, "ring %s = {\n", prefix); 185 seq_printf(s, " base = 0x%08x\n", r.base); 186 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 187 seq_printf(s, " tail = 0x%08x\n", r.tail); 188 seq_printf(s, " head = 0x%08x\n", r.head); 189 seq_printf(s, " entry size = %d\n", r.entry_size); 190 191 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 192 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 193 sizeof(struct wil6210_mbox_ring_desc)); 194 goto out; 195 } 196 197 if (!wmi_addr(wil, r.base) || 198 !wmi_addr(wil, r.tail) || 199 !wmi_addr(wil, r.head)) { 200 seq_puts(s, " ??? pointers are garbage?\n"); 201 goto out; 202 } 203 204 for (i = 0; i < rsize; i++) { 205 struct wil6210_mbox_ring_desc d; 206 struct wil6210_mbox_hdr hdr; 207 size_t delta = i * sizeof(d); 208 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 209 210 wil_memcpy_fromio_32(&d, x, sizeof(d)); 211 212 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 213 d.sync ? "F" : "E", 214 (r.tail - r.base == delta) ? "t" : " ", 215 (r.head - r.base == delta) ? "h" : " ", 216 le32_to_cpu(d.addr)); 217 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 218 u16 len = le16_to_cpu(hdr.len); 219 220 seq_printf(s, " -> %04x %04x %04x %02x\n", 221 le16_to_cpu(hdr.seq), len, 222 le16_to_cpu(hdr.type), hdr.flags); 223 if (len <= MAX_MBOXITEM_SIZE) { 224 unsigned char databuf[MAX_MBOXITEM_SIZE]; 225 void __iomem *src = wmi_buffer(wil, d.addr) + 226 sizeof(struct wil6210_mbox_hdr); 227 /* 228 * No need to check @src for validity - 229 * we already validated @d.addr while 230 * reading header 231 */ 232 wil_memcpy_fromio_32(databuf, src, len); 233 wil_seq_hexdump(s, databuf, len, " : "); 234 } 235 } else { 236 seq_puts(s, "\n"); 237 } 238 } 239 out: 240 seq_puts(s, "}\n"); 241 wil_halp_unvote(wil); 242 } 243 244 static int wil_mbox_debugfs_show(struct seq_file *s, void *data) 245 { 246 struct wil6210_priv *wil = s->private; 247 248 wil_print_ring(s, "tx", wil->csr + HOST_MBOX + 249 offsetof(struct wil6210_mbox_ctl, tx)); 250 wil_print_ring(s, "rx", wil->csr + HOST_MBOX + 251 offsetof(struct wil6210_mbox_ctl, rx)); 252 253 return 0; 254 } 255 256 static int wil_mbox_seq_open(struct inode *inode, struct file *file) 257 { 258 return single_open(file, wil_mbox_debugfs_show, inode->i_private); 259 } 260 261 static const struct file_operations fops_mbox = { 262 .open = wil_mbox_seq_open, 263 .release = single_release, 264 .read = seq_read, 265 .llseek = seq_lseek, 266 }; 267 268 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 269 { 270 writel(val, (void __iomem *)data); 271 wmb(); /* make sure write propagated to HW */ 272 273 return 0; 274 } 275 276 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 277 { 278 *val = readl((void __iomem *)data); 279 280 return 0; 281 } 282 283 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 284 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 285 286 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 287 umode_t mode, 288 struct dentry *parent, 289 void *value) 290 { 291 return debugfs_create_file(name, mode, parent, value, 292 &fops_iomem_x32); 293 } 294 295 static int wil_debugfs_ulong_set(void *data, u64 val) 296 { 297 *(ulong *)data = val; 298 return 0; 299 } 300 301 static int wil_debugfs_ulong_get(void *data, u64 *val) 302 { 303 *val = *(ulong *)data; 304 return 0; 305 } 306 307 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 308 wil_debugfs_ulong_set, "0x%llx\n"); 309 310 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 311 struct dentry *parent, 312 ulong *value) 313 { 314 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong); 315 } 316 317 /** 318 * wil6210_debugfs_init_offset - create set of debugfs files 319 * @wil - driver's context, used for printing 320 * @dbg - directory on the debugfs, where files will be created 321 * @base - base address used in address calculation 322 * @tbl - table with file descriptions. Should be terminated with empty element. 323 * 324 * Creates files accordingly to the @tbl. 325 */ 326 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 327 struct dentry *dbg, void *base, 328 const struct dbg_off * const tbl) 329 { 330 int i; 331 332 for (i = 0; tbl[i].name; i++) { 333 struct dentry *f; 334 335 switch (tbl[i].type) { 336 case doff_u32: 337 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 338 base + tbl[i].off); 339 break; 340 case doff_x32: 341 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 342 base + tbl[i].off); 343 break; 344 case doff_ulong: 345 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode, 346 dbg, base + tbl[i].off); 347 break; 348 case doff_io32: 349 f = wil_debugfs_create_iomem_x32(tbl[i].name, 350 tbl[i].mode, dbg, 351 base + tbl[i].off); 352 break; 353 case doff_u8: 354 f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg, 355 base + tbl[i].off); 356 break; 357 default: 358 f = ERR_PTR(-EINVAL); 359 } 360 if (IS_ERR_OR_NULL(f)) 361 wil_err(wil, "Create file \"%s\": err %ld\n", 362 tbl[i].name, PTR_ERR(f)); 363 } 364 } 365 366 static const struct dbg_off isr_off[] = { 367 {"ICC", 0644, offsetof(struct RGF_ICR, ICC), doff_io32}, 368 {"ICR", 0644, offsetof(struct RGF_ICR, ICR), doff_io32}, 369 {"ICM", 0644, offsetof(struct RGF_ICR, ICM), doff_io32}, 370 {"ICS", 0244, offsetof(struct RGF_ICR, ICS), doff_io32}, 371 {"IMV", 0644, offsetof(struct RGF_ICR, IMV), doff_io32}, 372 {"IMS", 0244, offsetof(struct RGF_ICR, IMS), doff_io32}, 373 {"IMC", 0244, offsetof(struct RGF_ICR, IMC), doff_io32}, 374 {}, 375 }; 376 377 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 378 const char *name, 379 struct dentry *parent, u32 off) 380 { 381 struct dentry *d = debugfs_create_dir(name, parent); 382 383 if (IS_ERR_OR_NULL(d)) 384 return -ENODEV; 385 386 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 387 isr_off); 388 389 return 0; 390 } 391 392 static const struct dbg_off pseudo_isr_off[] = { 393 {"CAUSE", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 394 {"MASK_SW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 395 {"MASK_FW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 396 {}, 397 }; 398 399 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 400 struct dentry *parent) 401 { 402 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 403 404 if (IS_ERR_OR_NULL(d)) 405 return -ENODEV; 406 407 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 408 pseudo_isr_off); 409 410 return 0; 411 } 412 413 static const struct dbg_off lgc_itr_cnt_off[] = { 414 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 415 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 416 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 417 {}, 418 }; 419 420 static const struct dbg_off tx_itr_cnt_off[] = { 421 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 422 doff_io32}, 423 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 424 doff_io32}, 425 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 426 doff_io32}, 427 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 428 doff_io32}, 429 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 430 doff_io32}, 431 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 432 doff_io32}, 433 {}, 434 }; 435 436 static const struct dbg_off rx_itr_cnt_off[] = { 437 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 438 doff_io32}, 439 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 440 doff_io32}, 441 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 442 doff_io32}, 443 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 444 doff_io32}, 445 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 446 doff_io32}, 447 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 448 doff_io32}, 449 {}, 450 }; 451 452 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 453 struct dentry *parent) 454 { 455 struct dentry *d, *dtx, *drx; 456 457 d = debugfs_create_dir("ITR_CNT", parent); 458 if (IS_ERR_OR_NULL(d)) 459 return -ENODEV; 460 461 dtx = debugfs_create_dir("TX", d); 462 drx = debugfs_create_dir("RX", d); 463 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx)) 464 return -ENODEV; 465 466 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 467 lgc_itr_cnt_off); 468 469 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 470 tx_itr_cnt_off); 471 472 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 473 rx_itr_cnt_off); 474 return 0; 475 } 476 477 static int wil_memread_debugfs_show(struct seq_file *s, void *data) 478 { 479 struct wil6210_priv *wil = s->private; 480 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 481 482 if (a) 483 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a)); 484 else 485 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 486 487 return 0; 488 } 489 490 static int wil_memread_seq_open(struct inode *inode, struct file *file) 491 { 492 return single_open(file, wil_memread_debugfs_show, inode->i_private); 493 } 494 495 static const struct file_operations fops_memread = { 496 .open = wil_memread_seq_open, 497 .release = single_release, 498 .read = seq_read, 499 .llseek = seq_lseek, 500 }; 501 502 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 503 size_t count, loff_t *ppos) 504 { 505 enum { max_count = 4096 }; 506 struct wil_blob_wrapper *wil_blob = file->private_data; 507 loff_t pos = *ppos; 508 size_t available = wil_blob->blob.size; 509 void *buf; 510 size_t ret; 511 512 if (pos < 0) 513 return -EINVAL; 514 515 if (pos >= available || !count) 516 return 0; 517 518 if (count > available - pos) 519 count = available - pos; 520 if (count > max_count) 521 count = max_count; 522 523 buf = kmalloc(count, GFP_KERNEL); 524 if (!buf) 525 return -ENOMEM; 526 527 wil_memcpy_fromio_32(buf, (const void __iomem *) 528 wil_blob->blob.data + pos, count); 529 530 ret = copy_to_user(user_buf, buf, count); 531 kfree(buf); 532 if (ret == count) 533 return -EFAULT; 534 535 count -= ret; 536 *ppos = pos + count; 537 538 return count; 539 } 540 541 static const struct file_operations fops_ioblob = { 542 .read = wil_read_file_ioblob, 543 .open = simple_open, 544 .llseek = default_llseek, 545 }; 546 547 static 548 struct dentry *wil_debugfs_create_ioblob(const char *name, 549 umode_t mode, 550 struct dentry *parent, 551 struct wil_blob_wrapper *wil_blob) 552 { 553 return debugfs_create_file(name, mode, parent, wil_blob, &fops_ioblob); 554 } 555 556 /*---reset---*/ 557 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, 558 size_t len, loff_t *ppos) 559 { 560 struct wil6210_priv *wil = file->private_data; 561 struct net_device *ndev = wil_to_ndev(wil); 562 563 /** 564 * BUG: 565 * this code does NOT sync device state with the rest of system 566 * use with care, debug only!!! 567 */ 568 rtnl_lock(); 569 dev_close(ndev); 570 ndev->flags &= ~IFF_UP; 571 rtnl_unlock(); 572 wil_reset(wil, true); 573 574 return len; 575 } 576 577 static const struct file_operations fops_reset = { 578 .write = wil_write_file_reset, 579 .open = simple_open, 580 }; 581 582 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 583 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 584 size_t len, loff_t *ppos) 585 { 586 struct wil6210_priv *wil = file->private_data; 587 int rc; 588 long channel; 589 bool on; 590 591 char *kbuf = memdup_user_nul(buf, len); 592 593 if (IS_ERR(kbuf)) 594 return PTR_ERR(kbuf); 595 rc = kstrtol(kbuf, 0, &channel); 596 kfree(kbuf); 597 if (rc) 598 return rc; 599 600 if ((channel < 0) || (channel > 4)) { 601 wil_err(wil, "Invalid channel %ld\n", channel); 602 return -EINVAL; 603 } 604 on = !!channel; 605 606 if (on) { 607 rc = wmi_set_channel(wil, (int)channel); 608 if (rc) 609 return rc; 610 } 611 612 rc = wmi_rxon(wil, on); 613 if (rc) 614 return rc; 615 616 return len; 617 } 618 619 static const struct file_operations fops_rxon = { 620 .write = wil_write_file_rxon, 621 .open = simple_open, 622 }; 623 624 /* block ack control, write: 625 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 626 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 627 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 628 */ 629 static ssize_t wil_write_back(struct file *file, const char __user *buf, 630 size_t len, loff_t *ppos) 631 { 632 struct wil6210_priv *wil = file->private_data; 633 int rc; 634 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 635 char cmd[9]; 636 int p1, p2, p3; 637 638 if (!kbuf) 639 return -ENOMEM; 640 641 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 642 if (rc != len) { 643 kfree(kbuf); 644 return rc >= 0 ? -EIO : rc; 645 } 646 647 kbuf[len] = '\0'; 648 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 649 kfree(kbuf); 650 651 if (rc < 0) 652 return rc; 653 if (rc < 2) 654 return -EINVAL; 655 656 if (0 == strcmp(cmd, "add")) { 657 if (rc < 3) { 658 wil_err(wil, "BACK: add require at least 2 params\n"); 659 return -EINVAL; 660 } 661 if (rc < 4) 662 p3 = 0; 663 wmi_addba(wil, p1, p2, p3); 664 } else if (0 == strcmp(cmd, "del_tx")) { 665 if (rc < 3) 666 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 667 wmi_delba_tx(wil, p1, p2); 668 } else if (0 == strcmp(cmd, "del_rx")) { 669 if (rc < 3) { 670 wil_err(wil, 671 "BACK: del_rx require at least 2 params\n"); 672 return -EINVAL; 673 } 674 if (rc < 4) 675 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 676 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3); 677 } else { 678 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 679 return -EINVAL; 680 } 681 682 return len; 683 } 684 685 static ssize_t wil_read_back(struct file *file, char __user *user_buf, 686 size_t count, loff_t *ppos) 687 { 688 static const char text[] = "block ack control, write:\n" 689 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 690 "If missing, <timeout> defaults to 0\n" 691 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 692 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 693 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 694 695 return simple_read_from_buffer(user_buf, count, ppos, text, 696 sizeof(text)); 697 } 698 699 static const struct file_operations fops_back = { 700 .read = wil_read_back, 701 .write = wil_write_back, 702 .open = simple_open, 703 }; 704 705 /* pmc control, write: 706 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 707 * - "free" to release memory allocated for PMC 708 */ 709 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 710 size_t len, loff_t *ppos) 711 { 712 struct wil6210_priv *wil = file->private_data; 713 int rc; 714 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 715 char cmd[9]; 716 int num_descs, desc_size; 717 718 if (!kbuf) 719 return -ENOMEM; 720 721 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 722 if (rc != len) { 723 kfree(kbuf); 724 return rc >= 0 ? -EIO : rc; 725 } 726 727 kbuf[len] = '\0'; 728 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 729 kfree(kbuf); 730 731 if (rc < 0) 732 return rc; 733 734 if (rc < 1) { 735 wil_err(wil, "pmccfg: no params given\n"); 736 return -EINVAL; 737 } 738 739 if (0 == strcmp(cmd, "alloc")) { 740 if (rc != 3) { 741 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 742 return -EINVAL; 743 } 744 wil_pmc_alloc(wil, num_descs, desc_size); 745 } else if (0 == strcmp(cmd, "free")) { 746 if (rc != 1) { 747 wil_err(wil, "pmccfg: free does not have any params\n"); 748 return -EINVAL; 749 } 750 wil_pmc_free(wil, true); 751 } else { 752 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 753 return -EINVAL; 754 } 755 756 return len; 757 } 758 759 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 760 size_t count, loff_t *ppos) 761 { 762 struct wil6210_priv *wil = file->private_data; 763 char text[256]; 764 char help[] = "pmc control, write:\n" 765 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 766 " - \"free\" to free memory allocated for pmc\n"; 767 768 sprintf(text, "Last command status: %d\n\n%s", 769 wil_pmc_last_cmd_status(wil), 770 help); 771 772 return simple_read_from_buffer(user_buf, count, ppos, text, 773 strlen(text) + 1); 774 } 775 776 static const struct file_operations fops_pmccfg = { 777 .read = wil_read_pmccfg, 778 .write = wil_write_pmccfg, 779 .open = simple_open, 780 }; 781 782 static const struct file_operations fops_pmcdata = { 783 .open = simple_open, 784 .read = wil_pmc_read, 785 .llseek = wil_pmc_llseek, 786 }; 787 788 /*---tx_mgmt---*/ 789 /* Write mgmt frame to this file to send it */ 790 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 791 size_t len, loff_t *ppos) 792 { 793 struct wil6210_priv *wil = file->private_data; 794 struct wiphy *wiphy = wil_to_wiphy(wil); 795 struct wireless_dev *wdev = wil_to_wdev(wil); 796 struct cfg80211_mgmt_tx_params params; 797 int rc; 798 void *frame = kmalloc(len, GFP_KERNEL); 799 800 if (!frame) 801 return -ENOMEM; 802 803 if (copy_from_user(frame, buf, len)) { 804 kfree(frame); 805 return -EIO; 806 } 807 808 params.buf = frame; 809 params.len = len; 810 params.chan = wdev->preset_chandef.chan; 811 812 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 813 814 kfree(frame); 815 wil_info(wil, "-> %d\n", rc); 816 817 return len; 818 } 819 820 static const struct file_operations fops_txmgmt = { 821 .write = wil_write_file_txmgmt, 822 .open = simple_open, 823 }; 824 825 /* Write WMI command (w/o mbox header) to this file to send it 826 * WMI starts from wil6210_mbox_hdr_wmi header 827 */ 828 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 829 size_t len, loff_t *ppos) 830 { 831 struct wil6210_priv *wil = file->private_data; 832 struct wmi_cmd_hdr *wmi; 833 void *cmd; 834 int cmdlen = len - sizeof(struct wmi_cmd_hdr); 835 u16 cmdid; 836 int rc, rc1; 837 838 if (cmdlen < 0) 839 return -EINVAL; 840 841 wmi = kmalloc(len, GFP_KERNEL); 842 if (!wmi) 843 return -ENOMEM; 844 845 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 846 if (rc < 0) { 847 kfree(wmi); 848 return rc; 849 } 850 851 cmd = (cmdlen > 0) ? &wmi[1] : NULL; 852 cmdid = le16_to_cpu(wmi->command_id); 853 854 rc1 = wmi_send(wil, cmdid, cmd, cmdlen); 855 kfree(wmi); 856 857 wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1); 858 859 return rc; 860 } 861 862 static const struct file_operations fops_wmi = { 863 .write = wil_write_file_wmi, 864 .open = simple_open, 865 }; 866 867 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 868 { 869 int i = 0; 870 int len = skb_headlen(skb); 871 void *p = skb->data; 872 int nr_frags = skb_shinfo(skb)->nr_frags; 873 874 seq_printf(s, " len = %d\n", len); 875 wil_seq_hexdump(s, p, len, " : "); 876 877 if (nr_frags) { 878 seq_printf(s, " nr_frags = %d\n", nr_frags); 879 for (i = 0; i < nr_frags; i++) { 880 const struct skb_frag_struct *frag = 881 &skb_shinfo(skb)->frags[i]; 882 883 len = skb_frag_size(frag); 884 p = skb_frag_address_safe(frag); 885 seq_printf(s, " [%2d] : len = %d\n", i, len); 886 wil_seq_hexdump(s, p, len, " : "); 887 } 888 } 889 } 890 891 /*---------Tx/Rx descriptor------------*/ 892 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) 893 { 894 struct wil6210_priv *wil = s->private; 895 struct vring *vring; 896 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS); 897 898 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx; 899 900 if (!vring->va) { 901 if (tx) 902 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index); 903 else 904 seq_puts(s, "No Rx VRING\n"); 905 return 0; 906 } 907 908 if (dbg_txdesc_index < vring->size) { 909 /* use struct vring_tx_desc for Rx as well, 910 * only field used, .dma.length, is the same 911 */ 912 volatile struct vring_tx_desc *d = 913 &vring->va[dbg_txdesc_index].tx; 914 volatile u32 *u = (volatile u32 *)d; 915 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb; 916 917 if (tx) 918 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index, 919 dbg_txdesc_index); 920 else 921 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index); 922 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 923 u[0], u[1], u[2], u[3]); 924 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 925 u[4], u[5], u[6], u[7]); 926 seq_printf(s, " SKB = 0x%p\n", skb); 927 928 if (skb) { 929 skb_get(skb); 930 wil_seq_print_skb(s, skb); 931 kfree_skb(skb); 932 } 933 seq_puts(s, "}\n"); 934 } else { 935 if (tx) 936 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 937 dbg_vring_index, dbg_txdesc_index, 938 vring->size); 939 else 940 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 941 dbg_txdesc_index, vring->size); 942 } 943 944 return 0; 945 } 946 947 static int wil_txdesc_seq_open(struct inode *inode, struct file *file) 948 { 949 return single_open(file, wil_txdesc_debugfs_show, inode->i_private); 950 } 951 952 static const struct file_operations fops_txdesc = { 953 .open = wil_txdesc_seq_open, 954 .release = single_release, 955 .read = seq_read, 956 .llseek = seq_lseek, 957 }; 958 959 /*---------beamforming------------*/ 960 static char *wil_bfstatus_str(u32 status) 961 { 962 switch (status) { 963 case 0: 964 return "Failed"; 965 case 1: 966 return "OK"; 967 case 2: 968 return "Retrying"; 969 default: 970 return "??"; 971 } 972 } 973 974 static bool is_all_zeros(void * const x_, size_t sz) 975 { 976 /* if reply is all-0, ignore this CID */ 977 u32 *x = x_; 978 int n; 979 980 for (n = 0; n < sz / sizeof(*x); n++) 981 if (x[n]) 982 return false; 983 984 return true; 985 } 986 987 static int wil_bf_debugfs_show(struct seq_file *s, void *data) 988 { 989 int rc; 990 int i; 991 struct wil6210_priv *wil = s->private; 992 struct wmi_notify_req_cmd cmd = { 993 .interval_usec = 0, 994 }; 995 struct { 996 struct wmi_cmd_hdr wmi; 997 struct wmi_notify_req_done_event evt; 998 } __packed reply; 999 1000 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1001 u32 status; 1002 1003 cmd.cid = i; 1004 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), 1005 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1006 sizeof(reply), 20); 1007 /* if reply is all-0, ignore this CID */ 1008 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1009 continue; 1010 1011 status = le32_to_cpu(reply.evt.status); 1012 seq_printf(s, "CID %d {\n" 1013 " TSF = 0x%016llx\n" 1014 " TxMCS = %2d TxTpt = %4d\n" 1015 " SQI = %4d\n" 1016 " Status = 0x%08x %s\n" 1017 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1018 " Goodput(rx:tx) %4d:%4d\n" 1019 "}\n", 1020 i, 1021 le64_to_cpu(reply.evt.tsf), 1022 le16_to_cpu(reply.evt.bf_mcs), 1023 le32_to_cpu(reply.evt.tx_tpt), 1024 reply.evt.sqi, 1025 status, wil_bfstatus_str(status), 1026 le16_to_cpu(reply.evt.my_rx_sector), 1027 le16_to_cpu(reply.evt.my_tx_sector), 1028 le16_to_cpu(reply.evt.other_rx_sector), 1029 le16_to_cpu(reply.evt.other_tx_sector), 1030 le32_to_cpu(reply.evt.rx_goodput), 1031 le32_to_cpu(reply.evt.tx_goodput)); 1032 } 1033 return 0; 1034 } 1035 1036 static int wil_bf_seq_open(struct inode *inode, struct file *file) 1037 { 1038 return single_open(file, wil_bf_debugfs_show, inode->i_private); 1039 } 1040 1041 static const struct file_operations fops_bf = { 1042 .open = wil_bf_seq_open, 1043 .release = single_release, 1044 .read = seq_read, 1045 .llseek = seq_lseek, 1046 }; 1047 1048 /*---------SSID------------*/ 1049 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, 1050 size_t count, loff_t *ppos) 1051 { 1052 struct wil6210_priv *wil = file->private_data; 1053 struct wireless_dev *wdev = wil_to_wdev(wil); 1054 1055 return simple_read_from_buffer(user_buf, count, ppos, 1056 wdev->ssid, wdev->ssid_len); 1057 } 1058 1059 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, 1060 size_t count, loff_t *ppos) 1061 { 1062 struct wil6210_priv *wil = file->private_data; 1063 struct wireless_dev *wdev = wil_to_wdev(wil); 1064 struct net_device *ndev = wil_to_ndev(wil); 1065 1066 if (*ppos != 0) { 1067 wil_err(wil, "Unable to set SSID substring from [%d]\n", 1068 (int)*ppos); 1069 return -EINVAL; 1070 } 1071 1072 if (count > sizeof(wdev->ssid)) { 1073 wil_err(wil, "SSID too long, len = %d\n", (int)count); 1074 return -EINVAL; 1075 } 1076 if (netif_running(ndev)) { 1077 wil_err(wil, "Unable to change SSID on running interface\n"); 1078 return -EINVAL; 1079 } 1080 1081 wdev->ssid_len = count; 1082 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, 1083 buf, count); 1084 } 1085 1086 static const struct file_operations fops_ssid = { 1087 .read = wil_read_file_ssid, 1088 .write = wil_write_file_ssid, 1089 .open = simple_open, 1090 }; 1091 1092 /*---------temp------------*/ 1093 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 1094 { 1095 switch (t) { 1096 case 0: 1097 case ~(u32)0: 1098 seq_printf(s, "%s N/A\n", prefix); 1099 break; 1100 default: 1101 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 1102 break; 1103 } 1104 } 1105 1106 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 1107 { 1108 struct wil6210_priv *wil = s->private; 1109 u32 t_m, t_r; 1110 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1111 1112 if (rc) { 1113 seq_puts(s, "Failed\n"); 1114 return 0; 1115 } 1116 1117 print_temp(s, "T_mac =", t_m); 1118 print_temp(s, "T_radio =", t_r); 1119 1120 return 0; 1121 } 1122 1123 static int wil_temp_seq_open(struct inode *inode, struct file *file) 1124 { 1125 return single_open(file, wil_temp_debugfs_show, inode->i_private); 1126 } 1127 1128 static const struct file_operations fops_temp = { 1129 .open = wil_temp_seq_open, 1130 .release = single_release, 1131 .read = seq_read, 1132 .llseek = seq_lseek, 1133 }; 1134 1135 /*---------freq------------*/ 1136 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 1137 { 1138 struct wil6210_priv *wil = s->private; 1139 struct wireless_dev *wdev = wil_to_wdev(wil); 1140 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1141 1142 seq_printf(s, "Freq = %d\n", freq); 1143 1144 return 0; 1145 } 1146 1147 static int wil_freq_seq_open(struct inode *inode, struct file *file) 1148 { 1149 return single_open(file, wil_freq_debugfs_show, inode->i_private); 1150 } 1151 1152 static const struct file_operations fops_freq = { 1153 .open = wil_freq_seq_open, 1154 .release = single_release, 1155 .read = seq_read, 1156 .llseek = seq_lseek, 1157 }; 1158 1159 /*---------link------------*/ 1160 static int wil_link_debugfs_show(struct seq_file *s, void *data) 1161 { 1162 struct wil6210_priv *wil = s->private; 1163 struct station_info sinfo; 1164 int i, rc; 1165 1166 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1167 struct wil_sta_info *p = &wil->sta[i]; 1168 char *status = "unknown"; 1169 1170 switch (p->status) { 1171 case wil_sta_unused: 1172 status = "unused "; 1173 break; 1174 case wil_sta_conn_pending: 1175 status = "pending "; 1176 break; 1177 case wil_sta_connected: 1178 status = "connected"; 1179 break; 1180 } 1181 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1182 1183 if (p->status == wil_sta_connected) { 1184 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 1185 if (rc) 1186 return rc; 1187 1188 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 1189 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 1190 seq_printf(s, " SQ = %d\n", sinfo.signal); 1191 } 1192 } 1193 1194 return 0; 1195 } 1196 1197 static int wil_link_seq_open(struct inode *inode, struct file *file) 1198 { 1199 return single_open(file, wil_link_debugfs_show, inode->i_private); 1200 } 1201 1202 static const struct file_operations fops_link = { 1203 .open = wil_link_seq_open, 1204 .release = single_release, 1205 .read = seq_read, 1206 .llseek = seq_lseek, 1207 }; 1208 1209 /*---------info------------*/ 1210 static int wil_info_debugfs_show(struct seq_file *s, void *data) 1211 { 1212 struct wil6210_priv *wil = s->private; 1213 struct net_device *ndev = wil_to_ndev(wil); 1214 int is_ac = power_supply_is_system_supplied(); 1215 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1216 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1217 static ulong rxf_old, txf_old; 1218 ulong rxf = ndev->stats.rx_packets; 1219 ulong txf = ndev->stats.tx_packets; 1220 unsigned int i; 1221 1222 /* >0 : AC; 0 : battery; <0 : error */ 1223 seq_printf(s, "AC powered : %d\n", is_ac); 1224 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1225 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1226 rxf_old = rxf; 1227 txf_old = txf; 1228 1229 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1230 " " __stringify(x) : "" 1231 1232 for (i = 0; i < ndev->num_tx_queues; i++) { 1233 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1234 unsigned long state = txq->state; 1235 1236 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1237 CHECK_QSTATE(DRV_XOFF), 1238 CHECK_QSTATE(STACK_XOFF), 1239 CHECK_QSTATE(FROZEN) 1240 ); 1241 } 1242 #undef CHECK_QSTATE 1243 return 0; 1244 } 1245 1246 static int wil_info_seq_open(struct inode *inode, struct file *file) 1247 { 1248 return single_open(file, wil_info_debugfs_show, inode->i_private); 1249 } 1250 1251 static const struct file_operations fops_info = { 1252 .open = wil_info_seq_open, 1253 .release = single_release, 1254 .read = seq_read, 1255 .llseek = seq_lseek, 1256 }; 1257 1258 /*---------recovery------------*/ 1259 /* mode = [manual|auto] 1260 * state = [idle|pending|running] 1261 */ 1262 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1263 size_t count, loff_t *ppos) 1264 { 1265 struct wil6210_priv *wil = file->private_data; 1266 char buf[80]; 1267 int n; 1268 static const char * const sstate[] = {"idle", "pending", "running"}; 1269 1270 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1271 no_fw_recovery ? "manual" : "auto", 1272 sstate[wil->recovery_state]); 1273 1274 n = min_t(int, n, sizeof(buf)); 1275 1276 return simple_read_from_buffer(user_buf, count, ppos, 1277 buf, n); 1278 } 1279 1280 static ssize_t wil_write_file_recovery(struct file *file, 1281 const char __user *buf_, 1282 size_t count, loff_t *ppos) 1283 { 1284 struct wil6210_priv *wil = file->private_data; 1285 static const char run_command[] = "run"; 1286 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1287 ssize_t rc; 1288 1289 if (wil->recovery_state != fw_recovery_pending) { 1290 wil_err(wil, "No recovery pending\n"); 1291 return -EINVAL; 1292 } 1293 1294 if (*ppos != 0) { 1295 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1296 return -EINVAL; 1297 } 1298 1299 if (count > sizeof(buf)) { 1300 wil_err(wil, "Input too long, len = %d\n", (int)count); 1301 return -EINVAL; 1302 } 1303 1304 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1305 if (rc < 0) 1306 return rc; 1307 1308 buf[rc] = '\0'; 1309 if (0 == strcmp(buf, run_command)) 1310 wil_set_recovery_state(wil, fw_recovery_running); 1311 else 1312 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1313 1314 return rc; 1315 } 1316 1317 static const struct file_operations fops_recovery = { 1318 .read = wil_read_file_recovery, 1319 .write = wil_write_file_recovery, 1320 .open = simple_open, 1321 }; 1322 1323 /*---------Station matrix------------*/ 1324 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1325 { 1326 int i; 1327 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1328 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1329 1330 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout, 1331 r->head_seq_num); 1332 for (i = 0; i < r->buf_size; i++) { 1333 if (i == index) 1334 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1335 else 1336 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1337 } 1338 seq_printf(s, 1339 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n", 1340 r->total, drop_dup + drop_old, drop_dup, drop_old, 1341 r->ssn_last_drop); 1342 } 1343 1344 static void wil_print_rxtid_crypto(struct seq_file *s, int tid, 1345 struct wil_tid_crypto_rx *c) 1346 { 1347 int i; 1348 1349 for (i = 0; i < 4; i++) { 1350 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1351 1352 if (cc->key_set) 1353 goto has_keys; 1354 } 1355 return; 1356 1357 has_keys: 1358 if (tid < WIL_STA_TID_NUM) 1359 seq_printf(s, " [%2d] PN", tid); 1360 else 1361 seq_puts(s, " [GR] PN"); 1362 1363 for (i = 0; i < 4; i++) { 1364 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1365 1366 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", 1367 cc->pn); 1368 } 1369 seq_puts(s, "\n"); 1370 } 1371 1372 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 1373 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1374 { 1375 struct wil6210_priv *wil = s->private; 1376 int i, tid, mcs; 1377 1378 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1379 struct wil_sta_info *p = &wil->sta[i]; 1380 char *status = "unknown"; 1381 u8 aid = 0; 1382 1383 switch (p->status) { 1384 case wil_sta_unused: 1385 status = "unused "; 1386 break; 1387 case wil_sta_conn_pending: 1388 status = "pending "; 1389 break; 1390 case wil_sta_connected: 1391 status = "connected"; 1392 aid = p->aid; 1393 break; 1394 } 1395 seq_printf(s, "[%d] %pM %s AID %d\n", i, p->addr, status, aid); 1396 1397 if (p->status == wil_sta_connected) { 1398 spin_lock_bh(&p->tid_rx_lock); 1399 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1400 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1401 struct wil_tid_crypto_rx *c = 1402 &p->tid_crypto_rx[tid]; 1403 1404 if (r) { 1405 seq_printf(s, " [%2d] ", tid); 1406 wil_print_rxtid(s, r); 1407 } 1408 1409 wil_print_rxtid_crypto(s, tid, c); 1410 } 1411 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, 1412 &p->group_crypto_rx); 1413 spin_unlock_bh(&p->tid_rx_lock); 1414 seq_printf(s, 1415 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", 1416 p->stats.rx_non_data_frame, 1417 p->stats.rx_short_frame, 1418 p->stats.rx_large_frame, 1419 p->stats.rx_replay); 1420 1421 seq_puts(s, "Rx/MCS:"); 1422 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1423 mcs++) 1424 seq_printf(s, " %lld", 1425 p->stats.rx_per_mcs[mcs]); 1426 seq_puts(s, "\n"); 1427 } 1428 } 1429 1430 return 0; 1431 } 1432 1433 static int wil_sta_seq_open(struct inode *inode, struct file *file) 1434 { 1435 return single_open(file, wil_sta_debugfs_show, inode->i_private); 1436 } 1437 1438 static const struct file_operations fops_sta = { 1439 .open = wil_sta_seq_open, 1440 .release = single_release, 1441 .read = seq_read, 1442 .llseek = seq_lseek, 1443 }; 1444 1445 static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf, 1446 size_t count, loff_t *ppos) 1447 { 1448 char buf[80]; 1449 int n; 1450 1451 n = snprintf(buf, sizeof(buf), 1452 "led_id is set to %d, echo 1 to enable, 0 to disable\n", 1453 led_id); 1454 1455 n = min_t(int, n, sizeof(buf)); 1456 1457 return simple_read_from_buffer(user_buf, count, ppos, 1458 buf, n); 1459 } 1460 1461 static ssize_t wil_write_file_led_cfg(struct file *file, 1462 const char __user *buf_, 1463 size_t count, loff_t *ppos) 1464 { 1465 struct wil6210_priv *wil = file->private_data; 1466 int val; 1467 int rc; 1468 1469 rc = kstrtoint_from_user(buf_, count, 0, &val); 1470 if (rc) { 1471 wil_err(wil, "Invalid argument\n"); 1472 return rc; 1473 } 1474 1475 wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id); 1476 rc = wmi_led_cfg(wil, val); 1477 if (rc) { 1478 wil_info(wil, "%s led %d failed\n", 1479 val ? "Enabling" : "Disabling", led_id); 1480 return rc; 1481 } 1482 1483 return count; 1484 } 1485 1486 static const struct file_operations fops_led_cfg = { 1487 .read = wil_read_file_led_cfg, 1488 .write = wil_write_file_led_cfg, 1489 .open = simple_open, 1490 }; 1491 1492 /* led_blink_time, write: 1493 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast> 1494 */ 1495 static ssize_t wil_write_led_blink_time(struct file *file, 1496 const char __user *buf, 1497 size_t len, loff_t *ppos) 1498 { 1499 int rc; 1500 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 1501 1502 if (!kbuf) 1503 return -ENOMEM; 1504 1505 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 1506 if (rc != len) { 1507 kfree(kbuf); 1508 return rc >= 0 ? -EIO : rc; 1509 } 1510 1511 kbuf[len] = '\0'; 1512 rc = sscanf(kbuf, "%d %d %d %d %d %d", 1513 &led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1514 &led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1515 &led_blink_time[WIL_LED_TIME_MED].on_ms, 1516 &led_blink_time[WIL_LED_TIME_MED].off_ms, 1517 &led_blink_time[WIL_LED_TIME_FAST].on_ms, 1518 &led_blink_time[WIL_LED_TIME_FAST].off_ms); 1519 kfree(kbuf); 1520 1521 if (rc < 0) 1522 return rc; 1523 if (rc < 6) 1524 return -EINVAL; 1525 1526 return len; 1527 } 1528 1529 static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf, 1530 size_t count, loff_t *ppos) 1531 { 1532 static char text[400]; 1533 1534 snprintf(text, sizeof(text), 1535 "To set led blink on/off time variables write:\n" 1536 "<blink_on_slow> <blink_off_slow> <blink_on_med> " 1537 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n" 1538 "The current values are:\n" 1539 "%d %d %d %d %d %d\n", 1540 led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1541 led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1542 led_blink_time[WIL_LED_TIME_MED].on_ms, 1543 led_blink_time[WIL_LED_TIME_MED].off_ms, 1544 led_blink_time[WIL_LED_TIME_FAST].on_ms, 1545 led_blink_time[WIL_LED_TIME_FAST].off_ms); 1546 1547 return simple_read_from_buffer(user_buf, count, ppos, text, 1548 sizeof(text)); 1549 } 1550 1551 static const struct file_operations fops_led_blink_time = { 1552 .read = wil_read_led_blink_time, 1553 .write = wil_write_led_blink_time, 1554 .open = simple_open, 1555 }; 1556 1557 /*---------FW capabilities------------*/ 1558 static int wil_fw_capabilities_debugfs_show(struct seq_file *s, void *data) 1559 { 1560 struct wil6210_priv *wil = s->private; 1561 1562 seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX, 1563 wil->fw_capabilities); 1564 1565 return 0; 1566 } 1567 1568 static int wil_fw_capabilities_seq_open(struct inode *inode, struct file *file) 1569 { 1570 return single_open(file, wil_fw_capabilities_debugfs_show, 1571 inode->i_private); 1572 } 1573 1574 static const struct file_operations fops_fw_capabilities = { 1575 .open = wil_fw_capabilities_seq_open, 1576 .release = single_release, 1577 .read = seq_read, 1578 .llseek = seq_lseek, 1579 }; 1580 1581 /*---------FW version------------*/ 1582 static int wil_fw_version_debugfs_show(struct seq_file *s, void *data) 1583 { 1584 struct wil6210_priv *wil = s->private; 1585 1586 if (wil->fw_version[0]) 1587 seq_printf(s, "%s\n", wil->fw_version); 1588 else 1589 seq_puts(s, "N/A\n"); 1590 1591 return 0; 1592 } 1593 1594 static int wil_fw_version_seq_open(struct inode *inode, struct file *file) 1595 { 1596 return single_open(file, wil_fw_version_debugfs_show, 1597 inode->i_private); 1598 } 1599 1600 static const struct file_operations fops_fw_version = { 1601 .open = wil_fw_version_seq_open, 1602 .release = single_release, 1603 .read = seq_read, 1604 .llseek = seq_lseek, 1605 }; 1606 1607 /*----------------*/ 1608 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 1609 struct dentry *dbg) 1610 { 1611 int i; 1612 char name[32]; 1613 1614 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 1615 struct wil_blob_wrapper *wil_blob = &wil->blobs[i]; 1616 struct debugfs_blob_wrapper *blob = &wil_blob->blob; 1617 const struct fw_map *map = &fw_mapping[i]; 1618 1619 if (!map->name) 1620 continue; 1621 1622 wil_blob->wil = wil; 1623 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 1624 blob->size = map->to - map->from; 1625 snprintf(name, sizeof(name), "blob_%s", map->name); 1626 wil_debugfs_create_ioblob(name, 0444, dbg, wil_blob); 1627 } 1628 } 1629 1630 /* misc files */ 1631 static const struct { 1632 const char *name; 1633 umode_t mode; 1634 const struct file_operations *fops; 1635 } dbg_files[] = { 1636 {"mbox", 0444, &fops_mbox}, 1637 {"vrings", 0444, &fops_vring}, 1638 {"stations", 0444, &fops_sta}, 1639 {"desc", 0444, &fops_txdesc}, 1640 {"bf", 0444, &fops_bf}, 1641 {"ssid", 0644, &fops_ssid}, 1642 {"mem_val", 0644, &fops_memread}, 1643 {"reset", 0244, &fops_reset}, 1644 {"rxon", 0244, &fops_rxon}, 1645 {"tx_mgmt", 0244, &fops_txmgmt}, 1646 {"wmi_send", 0244, &fops_wmi}, 1647 {"back", 0644, &fops_back}, 1648 {"pmccfg", 0644, &fops_pmccfg}, 1649 {"pmcdata", 0444, &fops_pmcdata}, 1650 {"temp", 0444, &fops_temp}, 1651 {"freq", 0444, &fops_freq}, 1652 {"link", 0444, &fops_link}, 1653 {"info", 0444, &fops_info}, 1654 {"recovery", 0644, &fops_recovery}, 1655 {"led_cfg", 0644, &fops_led_cfg}, 1656 {"led_blink_time", 0644, &fops_led_blink_time}, 1657 {"fw_capabilities", 0444, &fops_fw_capabilities}, 1658 {"fw_version", 0444, &fops_fw_version}, 1659 }; 1660 1661 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 1662 struct dentry *dbg) 1663 { 1664 int i; 1665 1666 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 1667 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 1668 wil, dbg_files[i].fops); 1669 } 1670 1671 /* interrupt control blocks */ 1672 static const struct { 1673 const char *name; 1674 u32 icr_off; 1675 } dbg_icr[] = { 1676 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 1677 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 1678 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 1679 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 1680 }; 1681 1682 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 1683 struct dentry *dbg) 1684 { 1685 int i; 1686 1687 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 1688 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 1689 dbg_icr[i].icr_off); 1690 } 1691 1692 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 1693 offsetof(struct wil6210_priv, name), type} 1694 1695 /* fields in struct wil6210_priv */ 1696 static const struct dbg_off dbg_wil_off[] = { 1697 WIL_FIELD(privacy, 0444, doff_u32), 1698 WIL_FIELD(status[0], 0644, doff_ulong), 1699 WIL_FIELD(hw_version, 0444, doff_x32), 1700 WIL_FIELD(recovery_count, 0444, doff_u32), 1701 WIL_FIELD(ap_isolate, 0444, doff_u32), 1702 WIL_FIELD(discovery_mode, 0644, doff_u8), 1703 WIL_FIELD(chip_revision, 0444, doff_u8), 1704 WIL_FIELD(abft_len, 0644, doff_u8), 1705 {}, 1706 }; 1707 1708 static const struct dbg_off dbg_wil_regs[] = { 1709 {"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 1710 doff_io32}, 1711 {"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 1712 {}, 1713 }; 1714 1715 /* static parameters */ 1716 static const struct dbg_off dbg_statics[] = { 1717 {"desc_index", 0644, (ulong)&dbg_txdesc_index, doff_u32}, 1718 {"vring_index", 0644, (ulong)&dbg_vring_index, doff_u32}, 1719 {"mem_addr", 0644, (ulong)&mem_addr, doff_u32}, 1720 {"vring_idle_trsh", 0644, (ulong)&vring_idle_trsh, 1721 doff_u32}, 1722 {"led_polarity", 0644, (ulong)&led_polarity, doff_u8}, 1723 {}, 1724 }; 1725 1726 int wil6210_debugfs_init(struct wil6210_priv *wil) 1727 { 1728 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 1729 wil_to_wiphy(wil)->debugfsdir); 1730 1731 if (IS_ERR_OR_NULL(dbg)) 1732 return -ENODEV; 1733 1734 wil_pmc_init(wil); 1735 1736 wil6210_debugfs_init_files(wil, dbg); 1737 wil6210_debugfs_init_isr(wil, dbg); 1738 wil6210_debugfs_init_blobs(wil, dbg); 1739 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 1740 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 1741 dbg_wil_regs); 1742 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 1743 1744 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1745 1746 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1747 1748 return 0; 1749 } 1750 1751 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1752 { 1753 debugfs_remove_recursive(wil->debug); 1754 wil->debug = NULL; 1755 1756 /* free pmc memory without sending command to fw, as it will 1757 * be reset on the way down anyway 1758 */ 1759 wil_pmc_free(wil, false); 1760 } 1761