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 #include "wil6210.h" 24 #include "wmi.h" 25 #include "txrx.h" 26 #include "pmc.h" 27 28 /* Nasty hack. Better have per device instances */ 29 static u32 mem_addr; 30 static u32 dbg_txdesc_index; 31 static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */ 32 33 enum dbg_off_type { 34 doff_u32 = 0, 35 doff_x32 = 1, 36 doff_ulong = 2, 37 doff_io32 = 3, 38 doff_u8 = 4 39 }; 40 41 /* offset to "wil" */ 42 struct dbg_off { 43 const char *name; 44 umode_t mode; 45 ulong off; 46 enum dbg_off_type type; 47 }; 48 49 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil, 50 const char *name, struct vring *vring, 51 char _s, char _h) 52 { 53 void __iomem *x = wmi_addr(wil, vring->hwtail); 54 u32 v; 55 56 seq_printf(s, "VRING %s = {\n", name); 57 seq_printf(s, " pa = %pad\n", &vring->pa); 58 seq_printf(s, " va = 0x%p\n", vring->va); 59 seq_printf(s, " size = %d\n", vring->size); 60 seq_printf(s, " swtail = %d\n", vring->swtail); 61 seq_printf(s, " swhead = %d\n", vring->swhead); 62 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail); 63 if (x) { 64 v = readl(x); 65 seq_printf(s, "0x%08x = %d\n", v, v); 66 } else { 67 seq_puts(s, "???\n"); 68 } 69 70 if (vring->va && (vring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) { 71 uint i; 72 73 for (i = 0; i < vring->size; i++) { 74 volatile struct vring_tx_desc *d = &vring->va[i].tx; 75 76 if ((i % 128) == 0 && (i != 0)) 77 seq_puts(s, "\n"); 78 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 79 _s : (vring->ctx[i].skb ? _h : 'h')); 80 } 81 seq_puts(s, "\n"); 82 } 83 seq_puts(s, "}\n"); 84 } 85 86 static int wil_vring_debugfs_show(struct seq_file *s, void *data) 87 { 88 uint i; 89 struct wil6210_priv *wil = s->private; 90 91 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_'); 92 93 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 94 struct vring *vring = &wil->vring_tx[i]; 95 struct vring_tx_data *txdata = &wil->vring_tx_data[i]; 96 97 if (vring->va) { 98 int cid = wil->vring2cid_tid[i][0]; 99 int tid = wil->vring2cid_tid[i][1]; 100 u32 swhead = vring->swhead; 101 u32 swtail = vring->swtail; 102 int used = (vring->size + swhead - swtail) 103 % vring->size; 104 int avail = vring->size - used - 1; 105 char name[10]; 106 char sidle[10]; 107 /* performance monitoring */ 108 cycles_t now = get_cycles(); 109 uint64_t idle = txdata->idle * 100; 110 uint64_t total = now - txdata->begin; 111 112 if (total != 0) { 113 do_div(idle, total); 114 snprintf(sidle, sizeof(sidle), "%3d%%", 115 (int)idle); 116 } else { 117 snprintf(sidle, sizeof(sidle), "N/A"); 118 } 119 txdata->begin = now; 120 txdata->idle = 0ULL; 121 122 snprintf(name, sizeof(name), "tx_%2d", i); 123 124 if (cid < WIL6210_MAX_CID) 125 seq_printf(s, 126 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n", 127 wil->sta[cid].addr, cid, tid, 128 txdata->dot1x_open ? "+" : "-", 129 txdata->agg_wsize, 130 txdata->agg_timeout, 131 txdata->agg_amsdu ? "+" : "-", 132 used, avail, sidle); 133 else 134 seq_printf(s, 135 "\nBroadcast 1x%s [%3d|%3d] idle %s\n", 136 txdata->dot1x_open ? "+" : "-", 137 used, avail, sidle); 138 139 wil_print_vring(s, wil, name, vring, '_', 'H'); 140 } 141 } 142 143 return 0; 144 } 145 146 static int wil_vring_seq_open(struct inode *inode, struct file *file) 147 { 148 return single_open(file, wil_vring_debugfs_show, inode->i_private); 149 } 150 151 static const struct file_operations fops_vring = { 152 .open = wil_vring_seq_open, 153 .release = single_release, 154 .read = seq_read, 155 .llseek = seq_lseek, 156 }; 157 158 static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 159 const char *prefix) 160 { 161 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false); 162 } 163 164 static void wil_print_ring(struct seq_file *s, const char *prefix, 165 void __iomem *off) 166 { 167 struct wil6210_priv *wil = s->private; 168 struct wil6210_mbox_ring r; 169 int rsize; 170 uint i; 171 172 wil_halp_vote(wil); 173 174 wil_memcpy_fromio_32(&r, off, sizeof(r)); 175 wil_mbox_ring_le2cpus(&r); 176 /* 177 * we just read memory block from NIC. This memory may be 178 * garbage. Check validity before using it. 179 */ 180 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 181 182 seq_printf(s, "ring %s = {\n", prefix); 183 seq_printf(s, " base = 0x%08x\n", r.base); 184 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 185 seq_printf(s, " tail = 0x%08x\n", r.tail); 186 seq_printf(s, " head = 0x%08x\n", r.head); 187 seq_printf(s, " entry size = %d\n", r.entry_size); 188 189 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 190 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 191 sizeof(struct wil6210_mbox_ring_desc)); 192 goto out; 193 } 194 195 if (!wmi_addr(wil, r.base) || 196 !wmi_addr(wil, r.tail) || 197 !wmi_addr(wil, r.head)) { 198 seq_puts(s, " ??? pointers are garbage?\n"); 199 goto out; 200 } 201 202 for (i = 0; i < rsize; i++) { 203 struct wil6210_mbox_ring_desc d; 204 struct wil6210_mbox_hdr hdr; 205 size_t delta = i * sizeof(d); 206 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 207 208 wil_memcpy_fromio_32(&d, x, sizeof(d)); 209 210 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 211 d.sync ? "F" : "E", 212 (r.tail - r.base == delta) ? "t" : " ", 213 (r.head - r.base == delta) ? "h" : " ", 214 le32_to_cpu(d.addr)); 215 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 216 u16 len = le16_to_cpu(hdr.len); 217 218 seq_printf(s, " -> %04x %04x %04x %02x\n", 219 le16_to_cpu(hdr.seq), len, 220 le16_to_cpu(hdr.type), hdr.flags); 221 if (len <= MAX_MBOXITEM_SIZE) { 222 unsigned char databuf[MAX_MBOXITEM_SIZE]; 223 void __iomem *src = wmi_buffer(wil, d.addr) + 224 sizeof(struct wil6210_mbox_hdr); 225 /* 226 * No need to check @src for validity - 227 * we already validated @d.addr while 228 * reading header 229 */ 230 wil_memcpy_fromio_32(databuf, src, len); 231 wil_seq_hexdump(s, databuf, len, " : "); 232 } 233 } else { 234 seq_puts(s, "\n"); 235 } 236 } 237 out: 238 seq_puts(s, "}\n"); 239 wil_halp_unvote(wil); 240 } 241 242 static int wil_mbox_debugfs_show(struct seq_file *s, void *data) 243 { 244 struct wil6210_priv *wil = s->private; 245 246 wil_print_ring(s, "tx", wil->csr + HOST_MBOX + 247 offsetof(struct wil6210_mbox_ctl, tx)); 248 wil_print_ring(s, "rx", wil->csr + HOST_MBOX + 249 offsetof(struct wil6210_mbox_ctl, rx)); 250 251 return 0; 252 } 253 254 static int wil_mbox_seq_open(struct inode *inode, struct file *file) 255 { 256 return single_open(file, wil_mbox_debugfs_show, inode->i_private); 257 } 258 259 static const struct file_operations fops_mbox = { 260 .open = wil_mbox_seq_open, 261 .release = single_release, 262 .read = seq_read, 263 .llseek = seq_lseek, 264 }; 265 266 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 267 { 268 writel(val, (void __iomem *)data); 269 wmb(); /* make sure write propagated to HW */ 270 271 return 0; 272 } 273 274 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 275 { 276 *val = readl((void __iomem *)data); 277 278 return 0; 279 } 280 281 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 282 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 283 284 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 285 umode_t mode, 286 struct dentry *parent, 287 void *value) 288 { 289 return debugfs_create_file(name, mode, parent, value, 290 &fops_iomem_x32); 291 } 292 293 static int wil_debugfs_ulong_set(void *data, u64 val) 294 { 295 *(ulong *)data = val; 296 return 0; 297 } 298 299 static int wil_debugfs_ulong_get(void *data, u64 *val) 300 { 301 *val = *(ulong *)data; 302 return 0; 303 } 304 305 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 306 wil_debugfs_ulong_set, "0x%llx\n"); 307 308 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 309 struct dentry *parent, 310 ulong *value) 311 { 312 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong); 313 } 314 315 /** 316 * wil6210_debugfs_init_offset - create set of debugfs files 317 * @wil - driver's context, used for printing 318 * @dbg - directory on the debugfs, where files will be created 319 * @base - base address used in address calculation 320 * @tbl - table with file descriptions. Should be terminated with empty element. 321 * 322 * Creates files accordingly to the @tbl. 323 */ 324 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 325 struct dentry *dbg, void *base, 326 const struct dbg_off * const tbl) 327 { 328 int i; 329 330 for (i = 0; tbl[i].name; i++) { 331 struct dentry *f; 332 333 switch (tbl[i].type) { 334 case doff_u32: 335 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 336 base + tbl[i].off); 337 break; 338 case doff_x32: 339 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 340 base + tbl[i].off); 341 break; 342 case doff_ulong: 343 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode, 344 dbg, base + tbl[i].off); 345 break; 346 case doff_io32: 347 f = wil_debugfs_create_iomem_x32(tbl[i].name, 348 tbl[i].mode, dbg, 349 base + tbl[i].off); 350 break; 351 case doff_u8: 352 f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg, 353 base + tbl[i].off); 354 break; 355 default: 356 f = ERR_PTR(-EINVAL); 357 } 358 if (IS_ERR_OR_NULL(f)) 359 wil_err(wil, "Create file \"%s\": err %ld\n", 360 tbl[i].name, PTR_ERR(f)); 361 } 362 } 363 364 static const struct dbg_off isr_off[] = { 365 {"ICC", 0644, offsetof(struct RGF_ICR, ICC), doff_io32}, 366 {"ICR", 0644, offsetof(struct RGF_ICR, ICR), doff_io32}, 367 {"ICM", 0644, offsetof(struct RGF_ICR, ICM), doff_io32}, 368 {"ICS", 0244, offsetof(struct RGF_ICR, ICS), doff_io32}, 369 {"IMV", 0644, offsetof(struct RGF_ICR, IMV), doff_io32}, 370 {"IMS", 0244, offsetof(struct RGF_ICR, IMS), doff_io32}, 371 {"IMC", 0244, offsetof(struct RGF_ICR, IMC), doff_io32}, 372 {}, 373 }; 374 375 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 376 const char *name, 377 struct dentry *parent, u32 off) 378 { 379 struct dentry *d = debugfs_create_dir(name, parent); 380 381 if (IS_ERR_OR_NULL(d)) 382 return -ENODEV; 383 384 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 385 isr_off); 386 387 return 0; 388 } 389 390 static const struct dbg_off pseudo_isr_off[] = { 391 {"CAUSE", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 392 {"MASK_SW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 393 {"MASK_FW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 394 {}, 395 }; 396 397 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 398 struct dentry *parent) 399 { 400 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 401 402 if (IS_ERR_OR_NULL(d)) 403 return -ENODEV; 404 405 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 406 pseudo_isr_off); 407 408 return 0; 409 } 410 411 static const struct dbg_off lgc_itr_cnt_off[] = { 412 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 413 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 414 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 415 {}, 416 }; 417 418 static const struct dbg_off tx_itr_cnt_off[] = { 419 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 420 doff_io32}, 421 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 422 doff_io32}, 423 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 424 doff_io32}, 425 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 426 doff_io32}, 427 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 428 doff_io32}, 429 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 430 doff_io32}, 431 {}, 432 }; 433 434 static const struct dbg_off rx_itr_cnt_off[] = { 435 {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 436 doff_io32}, 437 {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 438 doff_io32}, 439 {"CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 440 doff_io32}, 441 {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 442 doff_io32}, 443 {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 444 doff_io32}, 445 {"IDL_CTL", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 446 doff_io32}, 447 {}, 448 }; 449 450 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 451 struct dentry *parent) 452 { 453 struct dentry *d, *dtx, *drx; 454 455 d = debugfs_create_dir("ITR_CNT", parent); 456 if (IS_ERR_OR_NULL(d)) 457 return -ENODEV; 458 459 dtx = debugfs_create_dir("TX", d); 460 drx = debugfs_create_dir("RX", d); 461 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx)) 462 return -ENODEV; 463 464 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 465 lgc_itr_cnt_off); 466 467 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 468 tx_itr_cnt_off); 469 470 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 471 rx_itr_cnt_off); 472 return 0; 473 } 474 475 static int wil_memread_debugfs_show(struct seq_file *s, void *data) 476 { 477 struct wil6210_priv *wil = s->private; 478 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 479 480 if (a) 481 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a)); 482 else 483 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 484 485 return 0; 486 } 487 488 static int wil_memread_seq_open(struct inode *inode, struct file *file) 489 { 490 return single_open(file, wil_memread_debugfs_show, inode->i_private); 491 } 492 493 static const struct file_operations fops_memread = { 494 .open = wil_memread_seq_open, 495 .release = single_release, 496 .read = seq_read, 497 .llseek = seq_lseek, 498 }; 499 500 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 501 size_t count, loff_t *ppos) 502 { 503 enum { max_count = 4096 }; 504 struct wil_blob_wrapper *wil_blob = file->private_data; 505 loff_t pos = *ppos; 506 size_t available = wil_blob->blob.size; 507 void *buf; 508 size_t ret; 509 510 if (test_bit(wil_status_suspending, wil_blob->wil->status) || 511 test_bit(wil_status_suspended, wil_blob->wil->status)) 512 return 0; 513 514 if (pos < 0) 515 return -EINVAL; 516 517 if (pos >= available || !count) 518 return 0; 519 520 if (count > available - pos) 521 count = available - pos; 522 if (count > max_count) 523 count = max_count; 524 525 buf = kmalloc(count, GFP_KERNEL); 526 if (!buf) 527 return -ENOMEM; 528 529 wil_memcpy_fromio_32(buf, (const void __iomem *) 530 wil_blob->blob.data + pos, count); 531 532 ret = copy_to_user(user_buf, buf, count); 533 kfree(buf); 534 if (ret == count) 535 return -EFAULT; 536 537 count -= ret; 538 *ppos = pos + count; 539 540 return count; 541 } 542 543 static const struct file_operations fops_ioblob = { 544 .read = wil_read_file_ioblob, 545 .open = simple_open, 546 .llseek = default_llseek, 547 }; 548 549 static 550 struct dentry *wil_debugfs_create_ioblob(const char *name, 551 umode_t mode, 552 struct dentry *parent, 553 struct wil_blob_wrapper *wil_blob) 554 { 555 return debugfs_create_file(name, mode, parent, wil_blob, &fops_ioblob); 556 } 557 558 /*---reset---*/ 559 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, 560 size_t len, loff_t *ppos) 561 { 562 struct wil6210_priv *wil = file->private_data; 563 struct net_device *ndev = wil_to_ndev(wil); 564 565 /** 566 * BUG: 567 * this code does NOT sync device state with the rest of system 568 * use with care, debug only!!! 569 */ 570 rtnl_lock(); 571 dev_close(ndev); 572 ndev->flags &= ~IFF_UP; 573 rtnl_unlock(); 574 wil_reset(wil, true); 575 576 return len; 577 } 578 579 static const struct file_operations fops_reset = { 580 .write = wil_write_file_reset, 581 .open = simple_open, 582 }; 583 584 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 585 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 586 size_t len, loff_t *ppos) 587 { 588 struct wil6210_priv *wil = file->private_data; 589 int rc; 590 long channel; 591 bool on; 592 593 char *kbuf = memdup_user_nul(buf, len); 594 595 if (IS_ERR(kbuf)) 596 return PTR_ERR(kbuf); 597 rc = kstrtol(kbuf, 0, &channel); 598 kfree(kbuf); 599 if (rc) 600 return rc; 601 602 if ((channel < 0) || (channel > 4)) { 603 wil_err(wil, "Invalid channel %ld\n", channel); 604 return -EINVAL; 605 } 606 on = !!channel; 607 608 if (on) { 609 rc = wmi_set_channel(wil, (int)channel); 610 if (rc) 611 return rc; 612 } 613 614 rc = wmi_rxon(wil, on); 615 if (rc) 616 return rc; 617 618 return len; 619 } 620 621 static const struct file_operations fops_rxon = { 622 .write = wil_write_file_rxon, 623 .open = simple_open, 624 }; 625 626 /* block ack control, write: 627 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 628 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 629 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 630 */ 631 static ssize_t wil_write_back(struct file *file, const char __user *buf, 632 size_t len, loff_t *ppos) 633 { 634 struct wil6210_priv *wil = file->private_data; 635 int rc; 636 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 637 char cmd[9]; 638 int p1, p2, p3; 639 640 if (!kbuf) 641 return -ENOMEM; 642 643 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 644 if (rc != len) { 645 kfree(kbuf); 646 return rc >= 0 ? -EIO : rc; 647 } 648 649 kbuf[len] = '\0'; 650 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 651 kfree(kbuf); 652 653 if (rc < 0) 654 return rc; 655 if (rc < 2) 656 return -EINVAL; 657 658 if (0 == strcmp(cmd, "add")) { 659 if (rc < 3) { 660 wil_err(wil, "BACK: add require at least 2 params\n"); 661 return -EINVAL; 662 } 663 if (rc < 4) 664 p3 = 0; 665 wmi_addba(wil, p1, p2, p3); 666 } else if (0 == strcmp(cmd, "del_tx")) { 667 if (rc < 3) 668 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 669 wmi_delba_tx(wil, p1, p2); 670 } else if (0 == strcmp(cmd, "del_rx")) { 671 if (rc < 3) { 672 wil_err(wil, 673 "BACK: del_rx require at least 2 params\n"); 674 return -EINVAL; 675 } 676 if (rc < 4) 677 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 678 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3); 679 } else { 680 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 681 return -EINVAL; 682 } 683 684 return len; 685 } 686 687 static ssize_t wil_read_back(struct file *file, char __user *user_buf, 688 size_t count, loff_t *ppos) 689 { 690 static const char text[] = "block ack control, write:\n" 691 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 692 "If missing, <timeout> defaults to 0\n" 693 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 694 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 695 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 696 697 return simple_read_from_buffer(user_buf, count, ppos, text, 698 sizeof(text)); 699 } 700 701 static const struct file_operations fops_back = { 702 .read = wil_read_back, 703 .write = wil_write_back, 704 .open = simple_open, 705 }; 706 707 /* pmc control, write: 708 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 709 * - "free" to release memory allocated for PMC 710 */ 711 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 712 size_t len, loff_t *ppos) 713 { 714 struct wil6210_priv *wil = file->private_data; 715 int rc; 716 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 717 char cmd[9]; 718 int num_descs, desc_size; 719 720 if (!kbuf) 721 return -ENOMEM; 722 723 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 724 if (rc != len) { 725 kfree(kbuf); 726 return rc >= 0 ? -EIO : rc; 727 } 728 729 kbuf[len] = '\0'; 730 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 731 kfree(kbuf); 732 733 if (rc < 0) 734 return rc; 735 736 if (rc < 1) { 737 wil_err(wil, "pmccfg: no params given\n"); 738 return -EINVAL; 739 } 740 741 if (0 == strcmp(cmd, "alloc")) { 742 if (rc != 3) { 743 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 744 return -EINVAL; 745 } 746 wil_pmc_alloc(wil, num_descs, desc_size); 747 } else if (0 == strcmp(cmd, "free")) { 748 if (rc != 1) { 749 wil_err(wil, "pmccfg: free does not have any params\n"); 750 return -EINVAL; 751 } 752 wil_pmc_free(wil, true); 753 } else { 754 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 755 return -EINVAL; 756 } 757 758 return len; 759 } 760 761 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 762 size_t count, loff_t *ppos) 763 { 764 struct wil6210_priv *wil = file->private_data; 765 char text[256]; 766 char help[] = "pmc control, write:\n" 767 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 768 " - \"free\" to free memory allocated for pmc\n"; 769 770 sprintf(text, "Last command status: %d\n\n%s", 771 wil_pmc_last_cmd_status(wil), 772 help); 773 774 return simple_read_from_buffer(user_buf, count, ppos, text, 775 strlen(text) + 1); 776 } 777 778 static const struct file_operations fops_pmccfg = { 779 .read = wil_read_pmccfg, 780 .write = wil_write_pmccfg, 781 .open = simple_open, 782 }; 783 784 static const struct file_operations fops_pmcdata = { 785 .open = simple_open, 786 .read = wil_pmc_read, 787 .llseek = wil_pmc_llseek, 788 }; 789 790 /*---tx_mgmt---*/ 791 /* Write mgmt frame to this file to send it */ 792 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 793 size_t len, loff_t *ppos) 794 { 795 struct wil6210_priv *wil = file->private_data; 796 struct wiphy *wiphy = wil_to_wiphy(wil); 797 struct wireless_dev *wdev = wil_to_wdev(wil); 798 struct cfg80211_mgmt_tx_params params; 799 int rc; 800 void *frame; 801 802 if (!len) 803 return -EINVAL; 804 805 frame = memdup_user(buf, len); 806 if (IS_ERR(frame)) 807 return PTR_ERR(frame); 808 809 params.buf = frame; 810 params.len = len; 811 params.chan = wdev->preset_chandef.chan; 812 813 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 814 815 kfree(frame); 816 wil_info(wil, "-> %d\n", rc); 817 818 return len; 819 } 820 821 static const struct file_operations fops_txmgmt = { 822 .write = wil_write_file_txmgmt, 823 .open = simple_open, 824 }; 825 826 /* Write WMI command (w/o mbox header) to this file to send it 827 * WMI starts from wil6210_mbox_hdr_wmi header 828 */ 829 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 830 size_t len, loff_t *ppos) 831 { 832 struct wil6210_priv *wil = file->private_data; 833 struct wmi_cmd_hdr *wmi; 834 void *cmd; 835 int cmdlen = len - sizeof(struct wmi_cmd_hdr); 836 u16 cmdid; 837 int rc, rc1; 838 839 if (cmdlen < 0) 840 return -EINVAL; 841 842 wmi = kmalloc(len, GFP_KERNEL); 843 if (!wmi) 844 return -ENOMEM; 845 846 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 847 if (rc < 0) { 848 kfree(wmi); 849 return rc; 850 } 851 852 cmd = (cmdlen > 0) ? &wmi[1] : NULL; 853 cmdid = le16_to_cpu(wmi->command_id); 854 855 rc1 = wmi_send(wil, cmdid, cmd, cmdlen); 856 kfree(wmi); 857 858 wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1); 859 860 return rc; 861 } 862 863 static const struct file_operations fops_wmi = { 864 .write = wil_write_file_wmi, 865 .open = simple_open, 866 }; 867 868 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 869 { 870 int i = 0; 871 int len = skb_headlen(skb); 872 void *p = skb->data; 873 int nr_frags = skb_shinfo(skb)->nr_frags; 874 875 seq_printf(s, " len = %d\n", len); 876 wil_seq_hexdump(s, p, len, " : "); 877 878 if (nr_frags) { 879 seq_printf(s, " nr_frags = %d\n", nr_frags); 880 for (i = 0; i < nr_frags; i++) { 881 const struct skb_frag_struct *frag = 882 &skb_shinfo(skb)->frags[i]; 883 884 len = skb_frag_size(frag); 885 p = skb_frag_address_safe(frag); 886 seq_printf(s, " [%2d] : len = %d\n", i, len); 887 wil_seq_hexdump(s, p, len, " : "); 888 } 889 } 890 } 891 892 /*---------Tx/Rx descriptor------------*/ 893 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) 894 { 895 struct wil6210_priv *wil = s->private; 896 struct vring *vring; 897 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS); 898 899 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx; 900 901 if (!vring->va) { 902 if (tx) 903 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index); 904 else 905 seq_puts(s, "No Rx VRING\n"); 906 return 0; 907 } 908 909 if (dbg_txdesc_index < vring->size) { 910 /* use struct vring_tx_desc for Rx as well, 911 * only field used, .dma.length, is the same 912 */ 913 volatile struct vring_tx_desc *d = 914 &vring->va[dbg_txdesc_index].tx; 915 volatile u32 *u = (volatile u32 *)d; 916 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb; 917 918 if (tx) 919 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index, 920 dbg_txdesc_index); 921 else 922 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index); 923 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 924 u[0], u[1], u[2], u[3]); 925 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 926 u[4], u[5], u[6], u[7]); 927 seq_printf(s, " SKB = 0x%p\n", skb); 928 929 if (skb) { 930 skb_get(skb); 931 wil_seq_print_skb(s, skb); 932 kfree_skb(skb); 933 } 934 seq_puts(s, "}\n"); 935 } else { 936 if (tx) 937 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 938 dbg_vring_index, dbg_txdesc_index, 939 vring->size); 940 else 941 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 942 dbg_txdesc_index, vring->size); 943 } 944 945 return 0; 946 } 947 948 static int wil_txdesc_seq_open(struct inode *inode, struct file *file) 949 { 950 return single_open(file, wil_txdesc_debugfs_show, inode->i_private); 951 } 952 953 static const struct file_operations fops_txdesc = { 954 .open = wil_txdesc_seq_open, 955 .release = single_release, 956 .read = seq_read, 957 .llseek = seq_lseek, 958 }; 959 960 /*---------beamforming------------*/ 961 static char *wil_bfstatus_str(u32 status) 962 { 963 switch (status) { 964 case 0: 965 return "Failed"; 966 case 1: 967 return "OK"; 968 case 2: 969 return "Retrying"; 970 default: 971 return "??"; 972 } 973 } 974 975 static bool is_all_zeros(void * const x_, size_t sz) 976 { 977 /* if reply is all-0, ignore this CID */ 978 u32 *x = x_; 979 int n; 980 981 for (n = 0; n < sz / sizeof(*x); n++) 982 if (x[n]) 983 return false; 984 985 return true; 986 } 987 988 static int wil_bf_debugfs_show(struct seq_file *s, void *data) 989 { 990 int rc; 991 int i; 992 struct wil6210_priv *wil = s->private; 993 struct wmi_notify_req_cmd cmd = { 994 .interval_usec = 0, 995 }; 996 struct { 997 struct wmi_cmd_hdr wmi; 998 struct wmi_notify_req_done_event evt; 999 } __packed reply; 1000 1001 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1002 u32 status; 1003 1004 cmd.cid = i; 1005 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), 1006 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1007 sizeof(reply), 20); 1008 /* if reply is all-0, ignore this CID */ 1009 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1010 continue; 1011 1012 status = le32_to_cpu(reply.evt.status); 1013 seq_printf(s, "CID %d {\n" 1014 " TSF = 0x%016llx\n" 1015 " TxMCS = %2d TxTpt = %4d\n" 1016 " SQI = %4d\n" 1017 " RSSI = %4d\n" 1018 " Status = 0x%08x %s\n" 1019 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1020 " Goodput(rx:tx) %4d:%4d\n" 1021 "}\n", 1022 i, 1023 le64_to_cpu(reply.evt.tsf), 1024 le16_to_cpu(reply.evt.bf_mcs), 1025 le32_to_cpu(reply.evt.tx_tpt), 1026 reply.evt.sqi, 1027 reply.evt.rssi, 1028 status, wil_bfstatus_str(status), 1029 le16_to_cpu(reply.evt.my_rx_sector), 1030 le16_to_cpu(reply.evt.my_tx_sector), 1031 le16_to_cpu(reply.evt.other_rx_sector), 1032 le16_to_cpu(reply.evt.other_tx_sector), 1033 le32_to_cpu(reply.evt.rx_goodput), 1034 le32_to_cpu(reply.evt.tx_goodput)); 1035 } 1036 return 0; 1037 } 1038 1039 static int wil_bf_seq_open(struct inode *inode, struct file *file) 1040 { 1041 return single_open(file, wil_bf_debugfs_show, inode->i_private); 1042 } 1043 1044 static const struct file_operations fops_bf = { 1045 .open = wil_bf_seq_open, 1046 .release = single_release, 1047 .read = seq_read, 1048 .llseek = seq_lseek, 1049 }; 1050 1051 /*---------temp------------*/ 1052 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 1053 { 1054 switch (t) { 1055 case 0: 1056 case ~(u32)0: 1057 seq_printf(s, "%s N/A\n", prefix); 1058 break; 1059 default: 1060 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 1061 break; 1062 } 1063 } 1064 1065 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 1066 { 1067 struct wil6210_priv *wil = s->private; 1068 u32 t_m, t_r; 1069 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1070 1071 if (rc) { 1072 seq_puts(s, "Failed\n"); 1073 return 0; 1074 } 1075 1076 print_temp(s, "T_mac =", t_m); 1077 print_temp(s, "T_radio =", t_r); 1078 1079 return 0; 1080 } 1081 1082 static int wil_temp_seq_open(struct inode *inode, struct file *file) 1083 { 1084 return single_open(file, wil_temp_debugfs_show, inode->i_private); 1085 } 1086 1087 static const struct file_operations fops_temp = { 1088 .open = wil_temp_seq_open, 1089 .release = single_release, 1090 .read = seq_read, 1091 .llseek = seq_lseek, 1092 }; 1093 1094 /*---------freq------------*/ 1095 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 1096 { 1097 struct wil6210_priv *wil = s->private; 1098 struct wireless_dev *wdev = wil_to_wdev(wil); 1099 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1100 1101 seq_printf(s, "Freq = %d\n", freq); 1102 1103 return 0; 1104 } 1105 1106 static int wil_freq_seq_open(struct inode *inode, struct file *file) 1107 { 1108 return single_open(file, wil_freq_debugfs_show, inode->i_private); 1109 } 1110 1111 static const struct file_operations fops_freq = { 1112 .open = wil_freq_seq_open, 1113 .release = single_release, 1114 .read = seq_read, 1115 .llseek = seq_lseek, 1116 }; 1117 1118 /*---------link------------*/ 1119 static int wil_link_debugfs_show(struct seq_file *s, void *data) 1120 { 1121 struct wil6210_priv *wil = s->private; 1122 struct station_info sinfo; 1123 int i, rc; 1124 1125 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1126 struct wil_sta_info *p = &wil->sta[i]; 1127 char *status = "unknown"; 1128 1129 switch (p->status) { 1130 case wil_sta_unused: 1131 status = "unused "; 1132 break; 1133 case wil_sta_conn_pending: 1134 status = "pending "; 1135 break; 1136 case wil_sta_connected: 1137 status = "connected"; 1138 break; 1139 } 1140 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1141 1142 if (p->status == wil_sta_connected) { 1143 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 1144 if (rc) 1145 return rc; 1146 1147 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 1148 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 1149 seq_printf(s, " SQ = %d\n", sinfo.signal); 1150 } 1151 } 1152 1153 return 0; 1154 } 1155 1156 static int wil_link_seq_open(struct inode *inode, struct file *file) 1157 { 1158 return single_open(file, wil_link_debugfs_show, inode->i_private); 1159 } 1160 1161 static const struct file_operations fops_link = { 1162 .open = wil_link_seq_open, 1163 .release = single_release, 1164 .read = seq_read, 1165 .llseek = seq_lseek, 1166 }; 1167 1168 /*---------info------------*/ 1169 static int wil_info_debugfs_show(struct seq_file *s, void *data) 1170 { 1171 struct wil6210_priv *wil = s->private; 1172 struct net_device *ndev = wil_to_ndev(wil); 1173 int is_ac = power_supply_is_system_supplied(); 1174 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1175 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1176 static ulong rxf_old, txf_old; 1177 ulong rxf = ndev->stats.rx_packets; 1178 ulong txf = ndev->stats.tx_packets; 1179 unsigned int i; 1180 1181 /* >0 : AC; 0 : battery; <0 : error */ 1182 seq_printf(s, "AC powered : %d\n", is_ac); 1183 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1184 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1185 rxf_old = rxf; 1186 txf_old = txf; 1187 1188 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1189 " " __stringify(x) : "" 1190 1191 for (i = 0; i < ndev->num_tx_queues; i++) { 1192 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1193 unsigned long state = txq->state; 1194 1195 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1196 CHECK_QSTATE(DRV_XOFF), 1197 CHECK_QSTATE(STACK_XOFF), 1198 CHECK_QSTATE(FROZEN) 1199 ); 1200 } 1201 #undef CHECK_QSTATE 1202 return 0; 1203 } 1204 1205 static int wil_info_seq_open(struct inode *inode, struct file *file) 1206 { 1207 return single_open(file, wil_info_debugfs_show, inode->i_private); 1208 } 1209 1210 static const struct file_operations fops_info = { 1211 .open = wil_info_seq_open, 1212 .release = single_release, 1213 .read = seq_read, 1214 .llseek = seq_lseek, 1215 }; 1216 1217 /*---------recovery------------*/ 1218 /* mode = [manual|auto] 1219 * state = [idle|pending|running] 1220 */ 1221 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1222 size_t count, loff_t *ppos) 1223 { 1224 struct wil6210_priv *wil = file->private_data; 1225 char buf[80]; 1226 int n; 1227 static const char * const sstate[] = {"idle", "pending", "running"}; 1228 1229 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1230 no_fw_recovery ? "manual" : "auto", 1231 sstate[wil->recovery_state]); 1232 1233 n = min_t(int, n, sizeof(buf)); 1234 1235 return simple_read_from_buffer(user_buf, count, ppos, 1236 buf, n); 1237 } 1238 1239 static ssize_t wil_write_file_recovery(struct file *file, 1240 const char __user *buf_, 1241 size_t count, loff_t *ppos) 1242 { 1243 struct wil6210_priv *wil = file->private_data; 1244 static const char run_command[] = "run"; 1245 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1246 ssize_t rc; 1247 1248 if (wil->recovery_state != fw_recovery_pending) { 1249 wil_err(wil, "No recovery pending\n"); 1250 return -EINVAL; 1251 } 1252 1253 if (*ppos != 0) { 1254 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1255 return -EINVAL; 1256 } 1257 1258 if (count > sizeof(buf)) { 1259 wil_err(wil, "Input too long, len = %d\n", (int)count); 1260 return -EINVAL; 1261 } 1262 1263 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1264 if (rc < 0) 1265 return rc; 1266 1267 buf[rc] = '\0'; 1268 if (0 == strcmp(buf, run_command)) 1269 wil_set_recovery_state(wil, fw_recovery_running); 1270 else 1271 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1272 1273 return rc; 1274 } 1275 1276 static const struct file_operations fops_recovery = { 1277 .read = wil_read_file_recovery, 1278 .write = wil_write_file_recovery, 1279 .open = simple_open, 1280 }; 1281 1282 /*---------Station matrix------------*/ 1283 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1284 { 1285 int i; 1286 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1287 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1288 1289 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout, 1290 r->head_seq_num); 1291 for (i = 0; i < r->buf_size; i++) { 1292 if (i == index) 1293 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1294 else 1295 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1296 } 1297 seq_printf(s, 1298 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n", 1299 r->total, drop_dup + drop_old, drop_dup, drop_old, 1300 r->ssn_last_drop); 1301 } 1302 1303 static void wil_print_rxtid_crypto(struct seq_file *s, int tid, 1304 struct wil_tid_crypto_rx *c) 1305 { 1306 int i; 1307 1308 for (i = 0; i < 4; i++) { 1309 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1310 1311 if (cc->key_set) 1312 goto has_keys; 1313 } 1314 return; 1315 1316 has_keys: 1317 if (tid < WIL_STA_TID_NUM) 1318 seq_printf(s, " [%2d] PN", tid); 1319 else 1320 seq_puts(s, " [GR] PN"); 1321 1322 for (i = 0; i < 4; i++) { 1323 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1324 1325 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", 1326 cc->pn); 1327 } 1328 seq_puts(s, "\n"); 1329 } 1330 1331 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 1332 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1333 { 1334 struct wil6210_priv *wil = s->private; 1335 int i, tid, mcs; 1336 1337 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1338 struct wil_sta_info *p = &wil->sta[i]; 1339 char *status = "unknown"; 1340 u8 aid = 0; 1341 1342 switch (p->status) { 1343 case wil_sta_unused: 1344 status = "unused "; 1345 break; 1346 case wil_sta_conn_pending: 1347 status = "pending "; 1348 break; 1349 case wil_sta_connected: 1350 status = "connected"; 1351 aid = p->aid; 1352 break; 1353 } 1354 seq_printf(s, "[%d] %pM %s AID %d\n", i, p->addr, status, aid); 1355 1356 if (p->status == wil_sta_connected) { 1357 spin_lock_bh(&p->tid_rx_lock); 1358 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1359 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1360 struct wil_tid_crypto_rx *c = 1361 &p->tid_crypto_rx[tid]; 1362 1363 if (r) { 1364 seq_printf(s, " [%2d] ", tid); 1365 wil_print_rxtid(s, r); 1366 } 1367 1368 wil_print_rxtid_crypto(s, tid, c); 1369 } 1370 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, 1371 &p->group_crypto_rx); 1372 spin_unlock_bh(&p->tid_rx_lock); 1373 seq_printf(s, 1374 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", 1375 p->stats.rx_non_data_frame, 1376 p->stats.rx_short_frame, 1377 p->stats.rx_large_frame, 1378 p->stats.rx_replay); 1379 1380 seq_puts(s, "Rx/MCS:"); 1381 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1382 mcs++) 1383 seq_printf(s, " %lld", 1384 p->stats.rx_per_mcs[mcs]); 1385 seq_puts(s, "\n"); 1386 } 1387 } 1388 1389 return 0; 1390 } 1391 1392 static int wil_sta_seq_open(struct inode *inode, struct file *file) 1393 { 1394 return single_open(file, wil_sta_debugfs_show, inode->i_private); 1395 } 1396 1397 static const struct file_operations fops_sta = { 1398 .open = wil_sta_seq_open, 1399 .release = single_release, 1400 .read = seq_read, 1401 .llseek = seq_lseek, 1402 }; 1403 1404 static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf, 1405 size_t count, loff_t *ppos) 1406 { 1407 char buf[80]; 1408 int n; 1409 1410 n = snprintf(buf, sizeof(buf), 1411 "led_id is set to %d, echo 1 to enable, 0 to disable\n", 1412 led_id); 1413 1414 n = min_t(int, n, sizeof(buf)); 1415 1416 return simple_read_from_buffer(user_buf, count, ppos, 1417 buf, n); 1418 } 1419 1420 static ssize_t wil_write_file_led_cfg(struct file *file, 1421 const char __user *buf_, 1422 size_t count, loff_t *ppos) 1423 { 1424 struct wil6210_priv *wil = file->private_data; 1425 int val; 1426 int rc; 1427 1428 rc = kstrtoint_from_user(buf_, count, 0, &val); 1429 if (rc) { 1430 wil_err(wil, "Invalid argument\n"); 1431 return rc; 1432 } 1433 1434 wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id); 1435 rc = wmi_led_cfg(wil, val); 1436 if (rc) { 1437 wil_info(wil, "%s led %d failed\n", 1438 val ? "Enabling" : "Disabling", led_id); 1439 return rc; 1440 } 1441 1442 return count; 1443 } 1444 1445 static const struct file_operations fops_led_cfg = { 1446 .read = wil_read_file_led_cfg, 1447 .write = wil_write_file_led_cfg, 1448 .open = simple_open, 1449 }; 1450 1451 /* led_blink_time, write: 1452 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast> 1453 */ 1454 static ssize_t wil_write_led_blink_time(struct file *file, 1455 const char __user *buf, 1456 size_t len, loff_t *ppos) 1457 { 1458 int rc; 1459 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 1460 1461 if (!kbuf) 1462 return -ENOMEM; 1463 1464 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 1465 if (rc != len) { 1466 kfree(kbuf); 1467 return rc >= 0 ? -EIO : rc; 1468 } 1469 1470 kbuf[len] = '\0'; 1471 rc = sscanf(kbuf, "%d %d %d %d %d %d", 1472 &led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1473 &led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1474 &led_blink_time[WIL_LED_TIME_MED].on_ms, 1475 &led_blink_time[WIL_LED_TIME_MED].off_ms, 1476 &led_blink_time[WIL_LED_TIME_FAST].on_ms, 1477 &led_blink_time[WIL_LED_TIME_FAST].off_ms); 1478 kfree(kbuf); 1479 1480 if (rc < 0) 1481 return rc; 1482 if (rc < 6) 1483 return -EINVAL; 1484 1485 return len; 1486 } 1487 1488 static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf, 1489 size_t count, loff_t *ppos) 1490 { 1491 static char text[400]; 1492 1493 snprintf(text, sizeof(text), 1494 "To set led blink on/off time variables write:\n" 1495 "<blink_on_slow> <blink_off_slow> <blink_on_med> " 1496 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n" 1497 "The current values are:\n" 1498 "%d %d %d %d %d %d\n", 1499 led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1500 led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1501 led_blink_time[WIL_LED_TIME_MED].on_ms, 1502 led_blink_time[WIL_LED_TIME_MED].off_ms, 1503 led_blink_time[WIL_LED_TIME_FAST].on_ms, 1504 led_blink_time[WIL_LED_TIME_FAST].off_ms); 1505 1506 return simple_read_from_buffer(user_buf, count, ppos, text, 1507 sizeof(text)); 1508 } 1509 1510 static const struct file_operations fops_led_blink_time = { 1511 .read = wil_read_led_blink_time, 1512 .write = wil_write_led_blink_time, 1513 .open = simple_open, 1514 }; 1515 1516 /*---------FW capabilities------------*/ 1517 static int wil_fw_capabilities_debugfs_show(struct seq_file *s, void *data) 1518 { 1519 struct wil6210_priv *wil = s->private; 1520 1521 seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX, 1522 wil->fw_capabilities); 1523 1524 return 0; 1525 } 1526 1527 static int wil_fw_capabilities_seq_open(struct inode *inode, struct file *file) 1528 { 1529 return single_open(file, wil_fw_capabilities_debugfs_show, 1530 inode->i_private); 1531 } 1532 1533 static const struct file_operations fops_fw_capabilities = { 1534 .open = wil_fw_capabilities_seq_open, 1535 .release = single_release, 1536 .read = seq_read, 1537 .llseek = seq_lseek, 1538 }; 1539 1540 /*---------FW version------------*/ 1541 static int wil_fw_version_debugfs_show(struct seq_file *s, void *data) 1542 { 1543 struct wil6210_priv *wil = s->private; 1544 1545 if (wil->fw_version[0]) 1546 seq_printf(s, "%s\n", wil->fw_version); 1547 else 1548 seq_puts(s, "N/A\n"); 1549 1550 return 0; 1551 } 1552 1553 static int wil_fw_version_seq_open(struct inode *inode, struct file *file) 1554 { 1555 return single_open(file, wil_fw_version_debugfs_show, 1556 inode->i_private); 1557 } 1558 1559 static const struct file_operations fops_fw_version = { 1560 .open = wil_fw_version_seq_open, 1561 .release = single_release, 1562 .read = seq_read, 1563 .llseek = seq_lseek, 1564 }; 1565 1566 /*---------suspend_stats---------*/ 1567 static ssize_t wil_write_suspend_stats(struct file *file, 1568 const char __user *buf, 1569 size_t len, loff_t *ppos) 1570 { 1571 struct wil6210_priv *wil = file->private_data; 1572 1573 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats)); 1574 wil->suspend_stats.min_suspend_time = ULONG_MAX; 1575 wil->suspend_stats.collection_start = ktime_get(); 1576 1577 return len; 1578 } 1579 1580 static ssize_t wil_read_suspend_stats(struct file *file, 1581 char __user *user_buf, 1582 size_t count, loff_t *ppos) 1583 { 1584 struct wil6210_priv *wil = file->private_data; 1585 static char text[400]; 1586 int n; 1587 unsigned long long stats_collection_time = 1588 ktime_to_us(ktime_sub(ktime_get(), 1589 wil->suspend_stats.collection_start)); 1590 1591 n = snprintf(text, sizeof(text), 1592 "Suspend statistics:\n" 1593 "successful suspends:%ld failed suspends:%ld\n" 1594 "successful resumes:%ld failed resumes:%ld\n" 1595 "rejected by host:%ld rejected by device:%ld\n" 1596 "total suspend time:%lld min suspend time:%lld\n" 1597 "max suspend time:%lld stats collection time: %lld\n", 1598 wil->suspend_stats.successful_suspends, 1599 wil->suspend_stats.failed_suspends, 1600 wil->suspend_stats.successful_resumes, 1601 wil->suspend_stats.failed_resumes, 1602 wil->suspend_stats.rejected_by_host, 1603 wil->suspend_stats.rejected_by_device, 1604 wil->suspend_stats.total_suspend_time, 1605 wil->suspend_stats.min_suspend_time, 1606 wil->suspend_stats.max_suspend_time, 1607 stats_collection_time); 1608 1609 n = min_t(int, n, sizeof(text)); 1610 1611 return simple_read_from_buffer(user_buf, count, ppos, text, n); 1612 } 1613 1614 static const struct file_operations fops_suspend_stats = { 1615 .read = wil_read_suspend_stats, 1616 .write = wil_write_suspend_stats, 1617 .open = simple_open, 1618 }; 1619 1620 /*----------------*/ 1621 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 1622 struct dentry *dbg) 1623 { 1624 int i; 1625 char name[32]; 1626 1627 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 1628 struct wil_blob_wrapper *wil_blob = &wil->blobs[i]; 1629 struct debugfs_blob_wrapper *blob = &wil_blob->blob; 1630 const struct fw_map *map = &fw_mapping[i]; 1631 1632 if (!map->name) 1633 continue; 1634 1635 wil_blob->wil = wil; 1636 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 1637 blob->size = map->to - map->from; 1638 snprintf(name, sizeof(name), "blob_%s", map->name); 1639 wil_debugfs_create_ioblob(name, 0444, dbg, wil_blob); 1640 } 1641 } 1642 1643 /* misc files */ 1644 static const struct { 1645 const char *name; 1646 umode_t mode; 1647 const struct file_operations *fops; 1648 } dbg_files[] = { 1649 {"mbox", 0444, &fops_mbox}, 1650 {"vrings", 0444, &fops_vring}, 1651 {"stations", 0444, &fops_sta}, 1652 {"desc", 0444, &fops_txdesc}, 1653 {"bf", 0444, &fops_bf}, 1654 {"mem_val", 0644, &fops_memread}, 1655 {"reset", 0244, &fops_reset}, 1656 {"rxon", 0244, &fops_rxon}, 1657 {"tx_mgmt", 0244, &fops_txmgmt}, 1658 {"wmi_send", 0244, &fops_wmi}, 1659 {"back", 0644, &fops_back}, 1660 {"pmccfg", 0644, &fops_pmccfg}, 1661 {"pmcdata", 0444, &fops_pmcdata}, 1662 {"temp", 0444, &fops_temp}, 1663 {"freq", 0444, &fops_freq}, 1664 {"link", 0444, &fops_link}, 1665 {"info", 0444, &fops_info}, 1666 {"recovery", 0644, &fops_recovery}, 1667 {"led_cfg", 0644, &fops_led_cfg}, 1668 {"led_blink_time", 0644, &fops_led_blink_time}, 1669 {"fw_capabilities", 0444, &fops_fw_capabilities}, 1670 {"fw_version", 0444, &fops_fw_version}, 1671 {"suspend_stats", 0644, &fops_suspend_stats}, 1672 }; 1673 1674 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 1675 struct dentry *dbg) 1676 { 1677 int i; 1678 1679 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 1680 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 1681 wil, dbg_files[i].fops); 1682 } 1683 1684 /* interrupt control blocks */ 1685 static const struct { 1686 const char *name; 1687 u32 icr_off; 1688 } dbg_icr[] = { 1689 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 1690 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 1691 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 1692 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 1693 }; 1694 1695 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 1696 struct dentry *dbg) 1697 { 1698 int i; 1699 1700 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 1701 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 1702 dbg_icr[i].icr_off); 1703 } 1704 1705 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 1706 offsetof(struct wil6210_priv, name), type} 1707 1708 /* fields in struct wil6210_priv */ 1709 static const struct dbg_off dbg_wil_off[] = { 1710 WIL_FIELD(privacy, 0444, doff_u32), 1711 WIL_FIELD(status[0], 0644, doff_ulong), 1712 WIL_FIELD(hw_version, 0444, doff_x32), 1713 WIL_FIELD(recovery_count, 0444, doff_u32), 1714 WIL_FIELD(ap_isolate, 0444, doff_u32), 1715 WIL_FIELD(discovery_mode, 0644, doff_u8), 1716 WIL_FIELD(chip_revision, 0444, doff_u8), 1717 WIL_FIELD(abft_len, 0644, doff_u8), 1718 WIL_FIELD(wakeup_trigger, 0644, doff_u8), 1719 WIL_FIELD(vring_idle_trsh, 0644, doff_u32), 1720 {}, 1721 }; 1722 1723 static const struct dbg_off dbg_wil_regs[] = { 1724 {"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 1725 doff_io32}, 1726 {"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 1727 {}, 1728 }; 1729 1730 /* static parameters */ 1731 static const struct dbg_off dbg_statics[] = { 1732 {"desc_index", 0644, (ulong)&dbg_txdesc_index, doff_u32}, 1733 {"vring_index", 0644, (ulong)&dbg_vring_index, doff_u32}, 1734 {"mem_addr", 0644, (ulong)&mem_addr, doff_u32}, 1735 {"led_polarity", 0644, (ulong)&led_polarity, doff_u8}, 1736 {}, 1737 }; 1738 1739 int wil6210_debugfs_init(struct wil6210_priv *wil) 1740 { 1741 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 1742 wil_to_wiphy(wil)->debugfsdir); 1743 1744 if (IS_ERR_OR_NULL(dbg)) 1745 return -ENODEV; 1746 1747 wil_pmc_init(wil); 1748 1749 wil6210_debugfs_init_files(wil, dbg); 1750 wil6210_debugfs_init_isr(wil, dbg); 1751 wil6210_debugfs_init_blobs(wil, dbg); 1752 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 1753 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 1754 dbg_wil_regs); 1755 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 1756 1757 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1758 1759 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1760 1761 wil->suspend_stats.collection_start = ktime_get(); 1762 1763 return 0; 1764 } 1765 1766 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1767 { 1768 debugfs_remove_recursive(wil->debug); 1769 wil->debug = NULL; 1770 1771 /* free pmc memory without sending command to fw, as it will 1772 * be reset on the way down anyway 1773 */ 1774 wil_pmc_free(wil, false); 1775 } 1776