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 /*---------SSID------------*/ 1052 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, 1053 size_t count, loff_t *ppos) 1054 { 1055 struct wil6210_priv *wil = file->private_data; 1056 struct wireless_dev *wdev = wil_to_wdev(wil); 1057 1058 return simple_read_from_buffer(user_buf, count, ppos, 1059 wdev->ssid, wdev->ssid_len); 1060 } 1061 1062 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, 1063 size_t count, loff_t *ppos) 1064 { 1065 struct wil6210_priv *wil = file->private_data; 1066 struct wireless_dev *wdev = wil_to_wdev(wil); 1067 struct net_device *ndev = wil_to_ndev(wil); 1068 1069 if (*ppos != 0) { 1070 wil_err(wil, "Unable to set SSID substring from [%d]\n", 1071 (int)*ppos); 1072 return -EINVAL; 1073 } 1074 1075 if (count > sizeof(wdev->ssid)) { 1076 wil_err(wil, "SSID too long, len = %d\n", (int)count); 1077 return -EINVAL; 1078 } 1079 if (netif_running(ndev)) { 1080 wil_err(wil, "Unable to change SSID on running interface\n"); 1081 return -EINVAL; 1082 } 1083 1084 wdev->ssid_len = count; 1085 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, 1086 buf, count); 1087 } 1088 1089 static const struct file_operations fops_ssid = { 1090 .read = wil_read_file_ssid, 1091 .write = wil_write_file_ssid, 1092 .open = simple_open, 1093 }; 1094 1095 /*---------temp------------*/ 1096 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 1097 { 1098 switch (t) { 1099 case 0: 1100 case ~(u32)0: 1101 seq_printf(s, "%s N/A\n", prefix); 1102 break; 1103 default: 1104 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 1105 break; 1106 } 1107 } 1108 1109 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 1110 { 1111 struct wil6210_priv *wil = s->private; 1112 u32 t_m, t_r; 1113 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1114 1115 if (rc) { 1116 seq_puts(s, "Failed\n"); 1117 return 0; 1118 } 1119 1120 print_temp(s, "T_mac =", t_m); 1121 print_temp(s, "T_radio =", t_r); 1122 1123 return 0; 1124 } 1125 1126 static int wil_temp_seq_open(struct inode *inode, struct file *file) 1127 { 1128 return single_open(file, wil_temp_debugfs_show, inode->i_private); 1129 } 1130 1131 static const struct file_operations fops_temp = { 1132 .open = wil_temp_seq_open, 1133 .release = single_release, 1134 .read = seq_read, 1135 .llseek = seq_lseek, 1136 }; 1137 1138 /*---------freq------------*/ 1139 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 1140 { 1141 struct wil6210_priv *wil = s->private; 1142 struct wireless_dev *wdev = wil_to_wdev(wil); 1143 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1144 1145 seq_printf(s, "Freq = %d\n", freq); 1146 1147 return 0; 1148 } 1149 1150 static int wil_freq_seq_open(struct inode *inode, struct file *file) 1151 { 1152 return single_open(file, wil_freq_debugfs_show, inode->i_private); 1153 } 1154 1155 static const struct file_operations fops_freq = { 1156 .open = wil_freq_seq_open, 1157 .release = single_release, 1158 .read = seq_read, 1159 .llseek = seq_lseek, 1160 }; 1161 1162 /*---------link------------*/ 1163 static int wil_link_debugfs_show(struct seq_file *s, void *data) 1164 { 1165 struct wil6210_priv *wil = s->private; 1166 struct station_info sinfo; 1167 int i, rc; 1168 1169 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1170 struct wil_sta_info *p = &wil->sta[i]; 1171 char *status = "unknown"; 1172 1173 switch (p->status) { 1174 case wil_sta_unused: 1175 status = "unused "; 1176 break; 1177 case wil_sta_conn_pending: 1178 status = "pending "; 1179 break; 1180 case wil_sta_connected: 1181 status = "connected"; 1182 break; 1183 } 1184 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1185 1186 if (p->status == wil_sta_connected) { 1187 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 1188 if (rc) 1189 return rc; 1190 1191 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 1192 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 1193 seq_printf(s, " SQ = %d\n", sinfo.signal); 1194 } 1195 } 1196 1197 return 0; 1198 } 1199 1200 static int wil_link_seq_open(struct inode *inode, struct file *file) 1201 { 1202 return single_open(file, wil_link_debugfs_show, inode->i_private); 1203 } 1204 1205 static const struct file_operations fops_link = { 1206 .open = wil_link_seq_open, 1207 .release = single_release, 1208 .read = seq_read, 1209 .llseek = seq_lseek, 1210 }; 1211 1212 /*---------info------------*/ 1213 static int wil_info_debugfs_show(struct seq_file *s, void *data) 1214 { 1215 struct wil6210_priv *wil = s->private; 1216 struct net_device *ndev = wil_to_ndev(wil); 1217 int is_ac = power_supply_is_system_supplied(); 1218 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1219 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1220 static ulong rxf_old, txf_old; 1221 ulong rxf = ndev->stats.rx_packets; 1222 ulong txf = ndev->stats.tx_packets; 1223 unsigned int i; 1224 1225 /* >0 : AC; 0 : battery; <0 : error */ 1226 seq_printf(s, "AC powered : %d\n", is_ac); 1227 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1228 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1229 rxf_old = rxf; 1230 txf_old = txf; 1231 1232 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1233 " " __stringify(x) : "" 1234 1235 for (i = 0; i < ndev->num_tx_queues; i++) { 1236 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1237 unsigned long state = txq->state; 1238 1239 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1240 CHECK_QSTATE(DRV_XOFF), 1241 CHECK_QSTATE(STACK_XOFF), 1242 CHECK_QSTATE(FROZEN) 1243 ); 1244 } 1245 #undef CHECK_QSTATE 1246 return 0; 1247 } 1248 1249 static int wil_info_seq_open(struct inode *inode, struct file *file) 1250 { 1251 return single_open(file, wil_info_debugfs_show, inode->i_private); 1252 } 1253 1254 static const struct file_operations fops_info = { 1255 .open = wil_info_seq_open, 1256 .release = single_release, 1257 .read = seq_read, 1258 .llseek = seq_lseek, 1259 }; 1260 1261 /*---------recovery------------*/ 1262 /* mode = [manual|auto] 1263 * state = [idle|pending|running] 1264 */ 1265 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1266 size_t count, loff_t *ppos) 1267 { 1268 struct wil6210_priv *wil = file->private_data; 1269 char buf[80]; 1270 int n; 1271 static const char * const sstate[] = {"idle", "pending", "running"}; 1272 1273 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1274 no_fw_recovery ? "manual" : "auto", 1275 sstate[wil->recovery_state]); 1276 1277 n = min_t(int, n, sizeof(buf)); 1278 1279 return simple_read_from_buffer(user_buf, count, ppos, 1280 buf, n); 1281 } 1282 1283 static ssize_t wil_write_file_recovery(struct file *file, 1284 const char __user *buf_, 1285 size_t count, loff_t *ppos) 1286 { 1287 struct wil6210_priv *wil = file->private_data; 1288 static const char run_command[] = "run"; 1289 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1290 ssize_t rc; 1291 1292 if (wil->recovery_state != fw_recovery_pending) { 1293 wil_err(wil, "No recovery pending\n"); 1294 return -EINVAL; 1295 } 1296 1297 if (*ppos != 0) { 1298 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1299 return -EINVAL; 1300 } 1301 1302 if (count > sizeof(buf)) { 1303 wil_err(wil, "Input too long, len = %d\n", (int)count); 1304 return -EINVAL; 1305 } 1306 1307 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1308 if (rc < 0) 1309 return rc; 1310 1311 buf[rc] = '\0'; 1312 if (0 == strcmp(buf, run_command)) 1313 wil_set_recovery_state(wil, fw_recovery_running); 1314 else 1315 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1316 1317 return rc; 1318 } 1319 1320 static const struct file_operations fops_recovery = { 1321 .read = wil_read_file_recovery, 1322 .write = wil_write_file_recovery, 1323 .open = simple_open, 1324 }; 1325 1326 /*---------Station matrix------------*/ 1327 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1328 { 1329 int i; 1330 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1331 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1332 1333 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout, 1334 r->head_seq_num); 1335 for (i = 0; i < r->buf_size; i++) { 1336 if (i == index) 1337 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1338 else 1339 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1340 } 1341 seq_printf(s, 1342 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n", 1343 r->total, drop_dup + drop_old, drop_dup, drop_old, 1344 r->ssn_last_drop); 1345 } 1346 1347 static void wil_print_rxtid_crypto(struct seq_file *s, int tid, 1348 struct wil_tid_crypto_rx *c) 1349 { 1350 int i; 1351 1352 for (i = 0; i < 4; i++) { 1353 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1354 1355 if (cc->key_set) 1356 goto has_keys; 1357 } 1358 return; 1359 1360 has_keys: 1361 if (tid < WIL_STA_TID_NUM) 1362 seq_printf(s, " [%2d] PN", tid); 1363 else 1364 seq_puts(s, " [GR] PN"); 1365 1366 for (i = 0; i < 4; i++) { 1367 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1368 1369 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", 1370 cc->pn); 1371 } 1372 seq_puts(s, "\n"); 1373 } 1374 1375 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 1376 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1377 { 1378 struct wil6210_priv *wil = s->private; 1379 int i, tid, mcs; 1380 1381 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1382 struct wil_sta_info *p = &wil->sta[i]; 1383 char *status = "unknown"; 1384 u8 aid = 0; 1385 1386 switch (p->status) { 1387 case wil_sta_unused: 1388 status = "unused "; 1389 break; 1390 case wil_sta_conn_pending: 1391 status = "pending "; 1392 break; 1393 case wil_sta_connected: 1394 status = "connected"; 1395 aid = p->aid; 1396 break; 1397 } 1398 seq_printf(s, "[%d] %pM %s AID %d\n", i, p->addr, status, aid); 1399 1400 if (p->status == wil_sta_connected) { 1401 spin_lock_bh(&p->tid_rx_lock); 1402 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1403 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1404 struct wil_tid_crypto_rx *c = 1405 &p->tid_crypto_rx[tid]; 1406 1407 if (r) { 1408 seq_printf(s, " [%2d] ", tid); 1409 wil_print_rxtid(s, r); 1410 } 1411 1412 wil_print_rxtid_crypto(s, tid, c); 1413 } 1414 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, 1415 &p->group_crypto_rx); 1416 spin_unlock_bh(&p->tid_rx_lock); 1417 seq_printf(s, 1418 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", 1419 p->stats.rx_non_data_frame, 1420 p->stats.rx_short_frame, 1421 p->stats.rx_large_frame, 1422 p->stats.rx_replay); 1423 1424 seq_puts(s, "Rx/MCS:"); 1425 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1426 mcs++) 1427 seq_printf(s, " %lld", 1428 p->stats.rx_per_mcs[mcs]); 1429 seq_puts(s, "\n"); 1430 } 1431 } 1432 1433 return 0; 1434 } 1435 1436 static int wil_sta_seq_open(struct inode *inode, struct file *file) 1437 { 1438 return single_open(file, wil_sta_debugfs_show, inode->i_private); 1439 } 1440 1441 static const struct file_operations fops_sta = { 1442 .open = wil_sta_seq_open, 1443 .release = single_release, 1444 .read = seq_read, 1445 .llseek = seq_lseek, 1446 }; 1447 1448 static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf, 1449 size_t count, loff_t *ppos) 1450 { 1451 char buf[80]; 1452 int n; 1453 1454 n = snprintf(buf, sizeof(buf), 1455 "led_id is set to %d, echo 1 to enable, 0 to disable\n", 1456 led_id); 1457 1458 n = min_t(int, n, sizeof(buf)); 1459 1460 return simple_read_from_buffer(user_buf, count, ppos, 1461 buf, n); 1462 } 1463 1464 static ssize_t wil_write_file_led_cfg(struct file *file, 1465 const char __user *buf_, 1466 size_t count, loff_t *ppos) 1467 { 1468 struct wil6210_priv *wil = file->private_data; 1469 int val; 1470 int rc; 1471 1472 rc = kstrtoint_from_user(buf_, count, 0, &val); 1473 if (rc) { 1474 wil_err(wil, "Invalid argument\n"); 1475 return rc; 1476 } 1477 1478 wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id); 1479 rc = wmi_led_cfg(wil, val); 1480 if (rc) { 1481 wil_info(wil, "%s led %d failed\n", 1482 val ? "Enabling" : "Disabling", led_id); 1483 return rc; 1484 } 1485 1486 return count; 1487 } 1488 1489 static const struct file_operations fops_led_cfg = { 1490 .read = wil_read_file_led_cfg, 1491 .write = wil_write_file_led_cfg, 1492 .open = simple_open, 1493 }; 1494 1495 /* led_blink_time, write: 1496 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast> 1497 */ 1498 static ssize_t wil_write_led_blink_time(struct file *file, 1499 const char __user *buf, 1500 size_t len, loff_t *ppos) 1501 { 1502 int rc; 1503 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 1504 1505 if (!kbuf) 1506 return -ENOMEM; 1507 1508 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 1509 if (rc != len) { 1510 kfree(kbuf); 1511 return rc >= 0 ? -EIO : rc; 1512 } 1513 1514 kbuf[len] = '\0'; 1515 rc = sscanf(kbuf, "%d %d %d %d %d %d", 1516 &led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1517 &led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1518 &led_blink_time[WIL_LED_TIME_MED].on_ms, 1519 &led_blink_time[WIL_LED_TIME_MED].off_ms, 1520 &led_blink_time[WIL_LED_TIME_FAST].on_ms, 1521 &led_blink_time[WIL_LED_TIME_FAST].off_ms); 1522 kfree(kbuf); 1523 1524 if (rc < 0) 1525 return rc; 1526 if (rc < 6) 1527 return -EINVAL; 1528 1529 return len; 1530 } 1531 1532 static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf, 1533 size_t count, loff_t *ppos) 1534 { 1535 static char text[400]; 1536 1537 snprintf(text, sizeof(text), 1538 "To set led blink on/off time variables write:\n" 1539 "<blink_on_slow> <blink_off_slow> <blink_on_med> " 1540 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n" 1541 "The current values are:\n" 1542 "%d %d %d %d %d %d\n", 1543 led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1544 led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1545 led_blink_time[WIL_LED_TIME_MED].on_ms, 1546 led_blink_time[WIL_LED_TIME_MED].off_ms, 1547 led_blink_time[WIL_LED_TIME_FAST].on_ms, 1548 led_blink_time[WIL_LED_TIME_FAST].off_ms); 1549 1550 return simple_read_from_buffer(user_buf, count, ppos, text, 1551 sizeof(text)); 1552 } 1553 1554 static const struct file_operations fops_led_blink_time = { 1555 .read = wil_read_led_blink_time, 1556 .write = wil_write_led_blink_time, 1557 .open = simple_open, 1558 }; 1559 1560 /*---------FW capabilities------------*/ 1561 static int wil_fw_capabilities_debugfs_show(struct seq_file *s, void *data) 1562 { 1563 struct wil6210_priv *wil = s->private; 1564 1565 seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX, 1566 wil->fw_capabilities); 1567 1568 return 0; 1569 } 1570 1571 static int wil_fw_capabilities_seq_open(struct inode *inode, struct file *file) 1572 { 1573 return single_open(file, wil_fw_capabilities_debugfs_show, 1574 inode->i_private); 1575 } 1576 1577 static const struct file_operations fops_fw_capabilities = { 1578 .open = wil_fw_capabilities_seq_open, 1579 .release = single_release, 1580 .read = seq_read, 1581 .llseek = seq_lseek, 1582 }; 1583 1584 /*---------FW version------------*/ 1585 static int wil_fw_version_debugfs_show(struct seq_file *s, void *data) 1586 { 1587 struct wil6210_priv *wil = s->private; 1588 1589 if (wil->fw_version[0]) 1590 seq_printf(s, "%s\n", wil->fw_version); 1591 else 1592 seq_puts(s, "N/A\n"); 1593 1594 return 0; 1595 } 1596 1597 static int wil_fw_version_seq_open(struct inode *inode, struct file *file) 1598 { 1599 return single_open(file, wil_fw_version_debugfs_show, 1600 inode->i_private); 1601 } 1602 1603 static const struct file_operations fops_fw_version = { 1604 .open = wil_fw_version_seq_open, 1605 .release = single_release, 1606 .read = seq_read, 1607 .llseek = seq_lseek, 1608 }; 1609 1610 /*---------suspend_stats---------*/ 1611 static ssize_t wil_write_suspend_stats(struct file *file, 1612 const char __user *buf, 1613 size_t len, loff_t *ppos) 1614 { 1615 struct wil6210_priv *wil = file->private_data; 1616 1617 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats)); 1618 wil->suspend_stats.min_suspend_time = ULONG_MAX; 1619 wil->suspend_stats.collection_start = ktime_get(); 1620 1621 return len; 1622 } 1623 1624 static ssize_t wil_read_suspend_stats(struct file *file, 1625 char __user *user_buf, 1626 size_t count, loff_t *ppos) 1627 { 1628 struct wil6210_priv *wil = file->private_data; 1629 static char text[400]; 1630 int n; 1631 unsigned long long stats_collection_time = 1632 ktime_to_us(ktime_sub(ktime_get(), 1633 wil->suspend_stats.collection_start)); 1634 1635 n = snprintf(text, sizeof(text), 1636 "Suspend statistics:\n" 1637 "successful suspends:%ld failed suspends:%ld\n" 1638 "successful resumes:%ld failed resumes:%ld\n" 1639 "rejected by host:%ld rejected by device:%ld\n" 1640 "total suspend time:%lld min suspend time:%lld\n" 1641 "max suspend time:%lld stats collection time: %lld\n", 1642 wil->suspend_stats.successful_suspends, 1643 wil->suspend_stats.failed_suspends, 1644 wil->suspend_stats.successful_resumes, 1645 wil->suspend_stats.failed_resumes, 1646 wil->suspend_stats.rejected_by_host, 1647 wil->suspend_stats.rejected_by_device, 1648 wil->suspend_stats.total_suspend_time, 1649 wil->suspend_stats.min_suspend_time, 1650 wil->suspend_stats.max_suspend_time, 1651 stats_collection_time); 1652 1653 n = min_t(int, n, sizeof(text)); 1654 1655 return simple_read_from_buffer(user_buf, count, ppos, text, n); 1656 } 1657 1658 static const struct file_operations fops_suspend_stats = { 1659 .read = wil_read_suspend_stats, 1660 .write = wil_write_suspend_stats, 1661 .open = simple_open, 1662 }; 1663 1664 /*----------------*/ 1665 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 1666 struct dentry *dbg) 1667 { 1668 int i; 1669 char name[32]; 1670 1671 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 1672 struct wil_blob_wrapper *wil_blob = &wil->blobs[i]; 1673 struct debugfs_blob_wrapper *blob = &wil_blob->blob; 1674 const struct fw_map *map = &fw_mapping[i]; 1675 1676 if (!map->name) 1677 continue; 1678 1679 wil_blob->wil = wil; 1680 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 1681 blob->size = map->to - map->from; 1682 snprintf(name, sizeof(name), "blob_%s", map->name); 1683 wil_debugfs_create_ioblob(name, 0444, dbg, wil_blob); 1684 } 1685 } 1686 1687 /* misc files */ 1688 static const struct { 1689 const char *name; 1690 umode_t mode; 1691 const struct file_operations *fops; 1692 } dbg_files[] = { 1693 {"mbox", 0444, &fops_mbox}, 1694 {"vrings", 0444, &fops_vring}, 1695 {"stations", 0444, &fops_sta}, 1696 {"desc", 0444, &fops_txdesc}, 1697 {"bf", 0444, &fops_bf}, 1698 {"ssid", 0644, &fops_ssid}, 1699 {"mem_val", 0644, &fops_memread}, 1700 {"reset", 0244, &fops_reset}, 1701 {"rxon", 0244, &fops_rxon}, 1702 {"tx_mgmt", 0244, &fops_txmgmt}, 1703 {"wmi_send", 0244, &fops_wmi}, 1704 {"back", 0644, &fops_back}, 1705 {"pmccfg", 0644, &fops_pmccfg}, 1706 {"pmcdata", 0444, &fops_pmcdata}, 1707 {"temp", 0444, &fops_temp}, 1708 {"freq", 0444, &fops_freq}, 1709 {"link", 0444, &fops_link}, 1710 {"info", 0444, &fops_info}, 1711 {"recovery", 0644, &fops_recovery}, 1712 {"led_cfg", 0644, &fops_led_cfg}, 1713 {"led_blink_time", 0644, &fops_led_blink_time}, 1714 {"fw_capabilities", 0444, &fops_fw_capabilities}, 1715 {"fw_version", 0444, &fops_fw_version}, 1716 {"suspend_stats", 0644, &fops_suspend_stats}, 1717 }; 1718 1719 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 1720 struct dentry *dbg) 1721 { 1722 int i; 1723 1724 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 1725 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 1726 wil, dbg_files[i].fops); 1727 } 1728 1729 /* interrupt control blocks */ 1730 static const struct { 1731 const char *name; 1732 u32 icr_off; 1733 } dbg_icr[] = { 1734 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 1735 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 1736 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 1737 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 1738 }; 1739 1740 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 1741 struct dentry *dbg) 1742 { 1743 int i; 1744 1745 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 1746 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 1747 dbg_icr[i].icr_off); 1748 } 1749 1750 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 1751 offsetof(struct wil6210_priv, name), type} 1752 1753 /* fields in struct wil6210_priv */ 1754 static const struct dbg_off dbg_wil_off[] = { 1755 WIL_FIELD(privacy, 0444, doff_u32), 1756 WIL_FIELD(status[0], 0644, doff_ulong), 1757 WIL_FIELD(hw_version, 0444, doff_x32), 1758 WIL_FIELD(recovery_count, 0444, doff_u32), 1759 WIL_FIELD(ap_isolate, 0444, doff_u32), 1760 WIL_FIELD(discovery_mode, 0644, doff_u8), 1761 WIL_FIELD(chip_revision, 0444, doff_u8), 1762 WIL_FIELD(abft_len, 0644, doff_u8), 1763 WIL_FIELD(wakeup_trigger, 0644, doff_u8), 1764 WIL_FIELD(vring_idle_trsh, 0644, doff_u32), 1765 {}, 1766 }; 1767 1768 static const struct dbg_off dbg_wil_regs[] = { 1769 {"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 1770 doff_io32}, 1771 {"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 1772 {}, 1773 }; 1774 1775 /* static parameters */ 1776 static const struct dbg_off dbg_statics[] = { 1777 {"desc_index", 0644, (ulong)&dbg_txdesc_index, doff_u32}, 1778 {"vring_index", 0644, (ulong)&dbg_vring_index, doff_u32}, 1779 {"mem_addr", 0644, (ulong)&mem_addr, doff_u32}, 1780 {"led_polarity", 0644, (ulong)&led_polarity, doff_u8}, 1781 {}, 1782 }; 1783 1784 int wil6210_debugfs_init(struct wil6210_priv *wil) 1785 { 1786 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 1787 wil_to_wiphy(wil)->debugfsdir); 1788 1789 if (IS_ERR_OR_NULL(dbg)) 1790 return -ENODEV; 1791 1792 wil_pmc_init(wil); 1793 1794 wil6210_debugfs_init_files(wil, dbg); 1795 wil6210_debugfs_init_isr(wil, dbg); 1796 wil6210_debugfs_init_blobs(wil, dbg); 1797 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 1798 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 1799 dbg_wil_regs); 1800 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 1801 1802 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1803 1804 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1805 1806 wil->suspend_stats.collection_start = ktime_get(); 1807 1808 return 0; 1809 } 1810 1811 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1812 { 1813 debugfs_remove_recursive(wil->debug); 1814 wil->debug = NULL; 1815 1816 /* free pmc memory without sending command to fw, as it will 1817 * be reset on the way down anyway 1818 */ 1819 wil_pmc_free(wil, false); 1820 } 1821