1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. 4 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. 5 */ 6 7 #include <linux/moduleparam.h> 8 #include <linux/if_arp.h> 9 #include <linux/etherdevice.h> 10 #include <linux/rtnetlink.h> 11 12 #include "wil6210.h" 13 #include "txrx.h" 14 #include "txrx_edma.h" 15 #include "wmi.h" 16 #include "boot_loader.h" 17 18 #define WAIT_FOR_HALP_VOTE_MS 100 19 #define WAIT_FOR_SCAN_ABORT_MS 1000 20 #define WIL_DEFAULT_NUM_RX_STATUS_RINGS 1 21 #define WIL_BOARD_FILE_MAX_NAMELEN 128 22 23 bool debug_fw; /* = false; */ 24 module_param(debug_fw, bool, 0444); 25 MODULE_PARM_DESC(debug_fw, " do not perform card reset. For FW debug"); 26 27 static u8 oob_mode; 28 module_param(oob_mode, byte, 0444); 29 MODULE_PARM_DESC(oob_mode, 30 " enable out of the box (OOB) mode in FW, for diagnostics and certification"); 31 32 bool no_fw_recovery; 33 module_param(no_fw_recovery, bool, 0644); 34 MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery"); 35 36 /* if not set via modparam, will be set to default value of 1/8 of 37 * rx ring size during init flow 38 */ 39 unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT; 40 module_param(rx_ring_overflow_thrsh, ushort, 0444); 41 MODULE_PARM_DESC(rx_ring_overflow_thrsh, 42 " RX ring overflow threshold in descriptors."); 43 44 /* We allow allocation of more than 1 page buffers to support large packets. 45 * It is suboptimal behavior performance wise in case MTU above page size. 46 */ 47 unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - WIL_MAX_MPDU_OVERHEAD; mtu_max_set(const char * val,const struct kernel_param * kp)48 static int mtu_max_set(const char *val, const struct kernel_param *kp) 49 { 50 int ret; 51 52 /* sets mtu_max directly. no need to restore it in case of 53 * illegal value since we assume this will fail insmod 54 */ 55 ret = param_set_uint(val, kp); 56 if (ret) 57 return ret; 58 59 if (mtu_max < 68 || mtu_max > WIL_MAX_ETH_MTU) 60 ret = -EINVAL; 61 62 return ret; 63 } 64 65 static const struct kernel_param_ops mtu_max_ops = { 66 .set = mtu_max_set, 67 .get = param_get_uint, 68 }; 69 70 module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, 0444); 71 MODULE_PARM_DESC(mtu_max, " Max MTU value."); 72 73 static uint rx_ring_order; 74 static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT; 75 static uint bcast_ring_order = WIL_BCAST_RING_SIZE_ORDER_DEFAULT; 76 ring_order_set(const char * val,const struct kernel_param * kp)77 static int ring_order_set(const char *val, const struct kernel_param *kp) 78 { 79 int ret; 80 uint x; 81 82 ret = kstrtouint(val, 0, &x); 83 if (ret) 84 return ret; 85 86 if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX)) 87 return -EINVAL; 88 89 *((uint *)kp->arg) = x; 90 91 return 0; 92 } 93 94 static const struct kernel_param_ops ring_order_ops = { 95 .set = ring_order_set, 96 .get = param_get_uint, 97 }; 98 99 module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, 0444); 100 MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order"); 101 module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, 0444); 102 MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order"); 103 module_param_cb(bcast_ring_order, &ring_order_ops, &bcast_ring_order, 0444); 104 MODULE_PARM_DESC(bcast_ring_order, " Bcast ring order; size = 1 << order"); 105 106 enum { 107 WIL_BOOT_ERR, 108 WIL_BOOT_VANILLA, 109 WIL_BOOT_PRODUCTION, 110 WIL_BOOT_DEVELOPMENT, 111 }; 112 113 enum { 114 WIL_SIG_STATUS_VANILLA = 0x0, 115 WIL_SIG_STATUS_DEVELOPMENT = 0x1, 116 WIL_SIG_STATUS_PRODUCTION = 0x2, 117 WIL_SIG_STATUS_CORRUPTED_PRODUCTION = 0x3, 118 }; 119 120 #define RST_DELAY (20) /* msec, for loop in @wil_wait_device_ready */ 121 #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ 122 123 #define PMU_READY_DELAY_MS (4) /* ms, for sleep in @wil_wait_device_ready */ 124 125 #define OTP_HW_DELAY (200) /* usec, loop in @wil_wait_device_ready_talyn_mb */ 126 /* round up to be above 2 ms total */ 127 #define OTP_HW_COUNT (1 + 2000 / OTP_HW_DELAY) 128 129 /* 130 * Due to a hardware issue, 131 * one has to read/write to/from NIC in 32-bit chunks; 132 * regular memcpy_fromio and siblings will 133 * not work on 64-bit platform - it uses 64-bit transactions 134 * 135 * Force 32-bit transactions to enable NIC on 64-bit platforms 136 * 137 * To avoid byte swap on big endian host, __raw_{read|write}l 138 * should be used - {read|write}l would swap bytes to provide 139 * little endian on PCI value in host endianness. 140 */ wil_memcpy_fromio_32(void * dst,const volatile void __iomem * src,size_t count)141 void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, 142 size_t count) 143 { 144 u32 *d = dst; 145 const volatile u32 __iomem *s = src; 146 147 for (; count >= 4; count -= 4) 148 *d++ = __raw_readl(s++); 149 150 if (unlikely(count)) { 151 /* count can be 1..3 */ 152 u32 tmp = __raw_readl(s); 153 154 memcpy(d, &tmp, count); 155 } 156 } 157 wil_memcpy_toio_32(volatile void __iomem * dst,const void * src,size_t count)158 void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, 159 size_t count) 160 { 161 volatile u32 __iomem *d = dst; 162 const u32 *s = src; 163 164 for (; count >= 4; count -= 4) 165 __raw_writel(*s++, d++); 166 167 if (unlikely(count)) { 168 /* count can be 1..3 */ 169 u32 tmp = 0; 170 171 memcpy(&tmp, s, count); 172 __raw_writel(tmp, d); 173 } 174 } 175 176 /* Device memory access is prohibited while reset or suspend. 177 * wil_mem_access_lock protects accessing device memory in these cases 178 */ wil_mem_access_lock(struct wil6210_priv * wil)179 int wil_mem_access_lock(struct wil6210_priv *wil) 180 { 181 if (!down_read_trylock(&wil->mem_lock)) 182 return -EBUSY; 183 184 if (test_bit(wil_status_suspending, wil->status) || 185 test_bit(wil_status_suspended, wil->status)) { 186 up_read(&wil->mem_lock); 187 return -EBUSY; 188 } 189 190 return 0; 191 } 192 wil_mem_access_unlock(struct wil6210_priv * wil)193 void wil_mem_access_unlock(struct wil6210_priv *wil) 194 { 195 up_read(&wil->mem_lock); 196 } 197 wil_ring_fini_tx(struct wil6210_priv * wil,int id)198 static void wil_ring_fini_tx(struct wil6210_priv *wil, int id) 199 { 200 struct wil_ring *ring = &wil->ring_tx[id]; 201 struct wil_ring_tx_data *txdata = &wil->ring_tx_data[id]; 202 203 lockdep_assert_held(&wil->mutex); 204 205 if (!ring->va) 206 return; 207 208 wil_dbg_misc(wil, "vring_fini_tx: id=%d\n", id); 209 210 spin_lock_bh(&txdata->lock); 211 txdata->dot1x_open = false; 212 txdata->mid = U8_MAX; 213 txdata->enabled = 0; /* no Tx can be in progress or start anew */ 214 spin_unlock_bh(&txdata->lock); 215 /* napi_synchronize waits for completion of the current NAPI but will 216 * not prevent the next NAPI run. 217 * Add a memory barrier to guarantee that txdata->enabled is zeroed 218 * before napi_synchronize so that the next scheduled NAPI will not 219 * handle this vring 220 */ 221 wmb(); 222 /* make sure NAPI won't touch this vring */ 223 if (test_bit(wil_status_napi_en, wil->status)) 224 napi_synchronize(&wil->napi_tx); 225 226 wil->txrx_ops.ring_fini_tx(wil, ring); 227 } 228 wil_vif_is_connected(struct wil6210_priv * wil,u8 mid)229 static bool wil_vif_is_connected(struct wil6210_priv *wil, u8 mid) 230 { 231 int i; 232 233 for (i = 0; i < wil->max_assoc_sta; i++) { 234 if (wil->sta[i].mid == mid && 235 wil->sta[i].status == wil_sta_connected) 236 return true; 237 } 238 239 return false; 240 } 241 wil_disconnect_cid_complete(struct wil6210_vif * vif,int cid,u16 reason_code)242 static void wil_disconnect_cid_complete(struct wil6210_vif *vif, int cid, 243 u16 reason_code) 244 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 245 { 246 uint i; 247 struct wil6210_priv *wil = vif_to_wil(vif); 248 struct net_device *ndev = vif_to_ndev(vif); 249 struct wireless_dev *wdev = vif_to_wdev(vif); 250 struct wil_sta_info *sta = &wil->sta[cid]; 251 int min_ring_id = wil_get_min_tx_ring_id(wil); 252 253 might_sleep(); 254 wil_dbg_misc(wil, 255 "disconnect_cid_complete: CID %d, MID %d, status %d\n", 256 cid, sta->mid, sta->status); 257 /* inform upper layers */ 258 if (sta->status != wil_sta_unused) { 259 if (vif->mid != sta->mid) { 260 wil_err(wil, "STA MID mismatch with VIF MID(%d)\n", 261 vif->mid); 262 } 263 264 switch (wdev->iftype) { 265 case NL80211_IFTYPE_AP: 266 case NL80211_IFTYPE_P2P_GO: 267 /* AP-like interface */ 268 cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL); 269 break; 270 default: 271 break; 272 } 273 sta->status = wil_sta_unused; 274 sta->mid = U8_MAX; 275 } 276 /* reorder buffers */ 277 for (i = 0; i < WIL_STA_TID_NUM; i++) { 278 struct wil_tid_ampdu_rx *r; 279 280 spin_lock_bh(&sta->tid_rx_lock); 281 282 r = sta->tid_rx[i]; 283 sta->tid_rx[i] = NULL; 284 wil_tid_ampdu_rx_free(wil, r); 285 286 spin_unlock_bh(&sta->tid_rx_lock); 287 } 288 /* crypto context */ 289 memset(sta->tid_crypto_rx, 0, sizeof(sta->tid_crypto_rx)); 290 memset(&sta->group_crypto_rx, 0, sizeof(sta->group_crypto_rx)); 291 /* release vrings */ 292 for (i = min_ring_id; i < ARRAY_SIZE(wil->ring_tx); i++) { 293 if (wil->ring2cid_tid[i][0] == cid) 294 wil_ring_fini_tx(wil, i); 295 } 296 /* statistics */ 297 memset(&sta->stats, 0, sizeof(sta->stats)); 298 sta->stats.tx_latency_min_us = U32_MAX; 299 } 300 _wil6210_disconnect_complete(struct wil6210_vif * vif,const u8 * bssid,u16 reason_code)301 static void _wil6210_disconnect_complete(struct wil6210_vif *vif, 302 const u8 *bssid, u16 reason_code) 303 { 304 struct wil6210_priv *wil = vif_to_wil(vif); 305 int cid = -ENOENT; 306 struct net_device *ndev; 307 struct wireless_dev *wdev; 308 309 ndev = vif_to_ndev(vif); 310 wdev = vif_to_wdev(vif); 311 312 might_sleep(); 313 wil_info(wil, "disconnect_complete: bssid=%pM, reason=%d\n", 314 bssid, reason_code); 315 316 /* Cases are: 317 * - disconnect single STA, still connected 318 * - disconnect single STA, already disconnected 319 * - disconnect all 320 * 321 * For "disconnect all", there are 3 options: 322 * - bssid == NULL 323 * - bssid is broadcast address (ff:ff:ff:ff:ff:ff) 324 * - bssid is our MAC address 325 */ 326 if (bssid && !is_broadcast_ether_addr(bssid) && 327 !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) { 328 cid = wil_find_cid(wil, vif->mid, bssid); 329 wil_dbg_misc(wil, 330 "Disconnect complete %pM, CID=%d, reason=%d\n", 331 bssid, cid, reason_code); 332 if (wil_cid_valid(wil, cid)) /* disconnect 1 peer */ 333 wil_disconnect_cid_complete(vif, cid, reason_code); 334 } else { /* all */ 335 wil_dbg_misc(wil, "Disconnect complete all\n"); 336 for (cid = 0; cid < wil->max_assoc_sta; cid++) 337 wil_disconnect_cid_complete(vif, cid, reason_code); 338 } 339 340 /* link state */ 341 switch (wdev->iftype) { 342 case NL80211_IFTYPE_STATION: 343 case NL80211_IFTYPE_P2P_CLIENT: 344 wil_bcast_fini(vif); 345 wil_update_net_queues_bh(wil, vif, NULL, true); 346 netif_carrier_off(ndev); 347 if (!wil_has_other_active_ifaces(wil, ndev, false, true)) 348 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); 349 350 if (test_and_clear_bit(wil_vif_fwconnected, vif->status)) { 351 atomic_dec(&wil->connected_vifs); 352 cfg80211_disconnected(ndev, reason_code, 353 NULL, 0, 354 vif->locally_generated_disc, 355 GFP_KERNEL); 356 vif->locally_generated_disc = false; 357 } else if (test_bit(wil_vif_fwconnecting, vif->status)) { 358 cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, 359 WLAN_STATUS_UNSPECIFIED_FAILURE, 360 GFP_KERNEL); 361 vif->bss = NULL; 362 } 363 clear_bit(wil_vif_fwconnecting, vif->status); 364 clear_bit(wil_vif_ft_roam, vif->status); 365 vif->ptk_rekey_state = WIL_REKEY_IDLE; 366 367 break; 368 case NL80211_IFTYPE_AP: 369 case NL80211_IFTYPE_P2P_GO: 370 if (!wil_vif_is_connected(wil, vif->mid)) { 371 wil_update_net_queues_bh(wil, vif, NULL, true); 372 if (test_and_clear_bit(wil_vif_fwconnected, 373 vif->status)) 374 atomic_dec(&wil->connected_vifs); 375 } else { 376 wil_update_net_queues_bh(wil, vif, NULL, false); 377 } 378 break; 379 default: 380 break; 381 } 382 } 383 wil_disconnect_cid(struct wil6210_vif * vif,int cid,u16 reason_code)384 static int wil_disconnect_cid(struct wil6210_vif *vif, int cid, 385 u16 reason_code) 386 { 387 struct wil6210_priv *wil = vif_to_wil(vif); 388 struct wireless_dev *wdev = vif_to_wdev(vif); 389 struct wil_sta_info *sta = &wil->sta[cid]; 390 bool del_sta = false; 391 392 might_sleep(); 393 wil_dbg_misc(wil, "disconnect_cid: CID %d, MID %d, status %d\n", 394 cid, sta->mid, sta->status); 395 396 if (sta->status == wil_sta_unused) 397 return 0; 398 399 if (vif->mid != sta->mid) { 400 wil_err(wil, "STA MID mismatch with VIF MID(%d)\n", vif->mid); 401 return -EINVAL; 402 } 403 404 /* inform lower layers */ 405 if (wdev->iftype == NL80211_IFTYPE_AP && disable_ap_sme) 406 del_sta = true; 407 408 /* disconnect by sending command disconnect/del_sta and wait 409 * synchronously for WMI_DISCONNECT_EVENTID event. 410 */ 411 return wmi_disconnect_sta(vif, sta->addr, reason_code, del_sta); 412 } 413 _wil6210_disconnect(struct wil6210_vif * vif,const u8 * bssid,u16 reason_code)414 static void _wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid, 415 u16 reason_code) 416 { 417 struct wil6210_priv *wil; 418 struct net_device *ndev; 419 int cid = -ENOENT; 420 421 if (unlikely(!vif)) 422 return; 423 424 wil = vif_to_wil(vif); 425 ndev = vif_to_ndev(vif); 426 427 might_sleep(); 428 wil_info(wil, "disconnect bssid=%pM, reason=%d\n", bssid, reason_code); 429 430 /* Cases are: 431 * - disconnect single STA, still connected 432 * - disconnect single STA, already disconnected 433 * - disconnect all 434 * 435 * For "disconnect all", there are 3 options: 436 * - bssid == NULL 437 * - bssid is broadcast address (ff:ff:ff:ff:ff:ff) 438 * - bssid is our MAC address 439 */ 440 if (bssid && !is_broadcast_ether_addr(bssid) && 441 !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) { 442 cid = wil_find_cid(wil, vif->mid, bssid); 443 wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n", 444 bssid, cid, reason_code); 445 if (wil_cid_valid(wil, cid)) /* disconnect 1 peer */ 446 wil_disconnect_cid(vif, cid, reason_code); 447 } else { /* all */ 448 wil_dbg_misc(wil, "Disconnect all\n"); 449 for (cid = 0; cid < wil->max_assoc_sta; cid++) 450 wil_disconnect_cid(vif, cid, reason_code); 451 } 452 453 /* call event handler manually after processing wmi_call, 454 * to avoid deadlock - disconnect event handler acquires 455 * wil->mutex while it is already held here 456 */ 457 _wil6210_disconnect_complete(vif, bssid, reason_code); 458 } 459 wil_disconnect_worker(struct work_struct * work)460 void wil_disconnect_worker(struct work_struct *work) 461 { 462 struct wil6210_vif *vif = container_of(work, 463 struct wil6210_vif, disconnect_worker); 464 struct wil6210_priv *wil = vif_to_wil(vif); 465 struct net_device *ndev = vif_to_ndev(vif); 466 int rc; 467 struct { 468 struct wmi_cmd_hdr wmi; 469 struct wmi_disconnect_event evt; 470 } __packed reply; 471 472 if (test_bit(wil_vif_fwconnected, vif->status)) 473 /* connect succeeded after all */ 474 return; 475 476 if (!test_bit(wil_vif_fwconnecting, vif->status)) 477 /* already disconnected */ 478 return; 479 480 memset(&reply, 0, sizeof(reply)); 481 482 rc = wmi_call(wil, WMI_DISCONNECT_CMDID, vif->mid, NULL, 0, 483 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 484 WIL6210_DISCONNECT_TO_MS); 485 if (rc) { 486 wil_err(wil, "disconnect error %d\n", rc); 487 return; 488 } 489 490 wil_update_net_queues_bh(wil, vif, NULL, true); 491 netif_carrier_off(ndev); 492 cfg80211_connect_result(ndev, NULL, NULL, 0, NULL, 0, 493 WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); 494 clear_bit(wil_vif_fwconnecting, vif->status); 495 } 496 wil_wait_for_recovery(struct wil6210_priv * wil)497 static int wil_wait_for_recovery(struct wil6210_priv *wil) 498 { 499 if (wait_event_interruptible(wil->wq, wil->recovery_state != 500 fw_recovery_pending)) { 501 wil_err(wil, "Interrupt, canceling recovery\n"); 502 return -ERESTARTSYS; 503 } 504 if (wil->recovery_state != fw_recovery_running) { 505 wil_info(wil, "Recovery cancelled\n"); 506 return -EINTR; 507 } 508 wil_info(wil, "Proceed with recovery\n"); 509 return 0; 510 } 511 wil_set_recovery_state(struct wil6210_priv * wil,int state)512 void wil_set_recovery_state(struct wil6210_priv *wil, int state) 513 { 514 wil_dbg_misc(wil, "set_recovery_state: %d -> %d\n", 515 wil->recovery_state, state); 516 517 wil->recovery_state = state; 518 wake_up_interruptible(&wil->wq); 519 } 520 wil_is_recovery_blocked(struct wil6210_priv * wil)521 bool wil_is_recovery_blocked(struct wil6210_priv *wil) 522 { 523 return no_fw_recovery && (wil->recovery_state == fw_recovery_pending); 524 } 525 wil_fw_error_worker(struct work_struct * work)526 static void wil_fw_error_worker(struct work_struct *work) 527 { 528 struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 529 fw_error_worker); 530 struct net_device *ndev = wil->main_ndev; 531 struct wireless_dev *wdev; 532 533 wil_dbg_misc(wil, "fw error worker\n"); 534 535 if (!ndev || !(ndev->flags & IFF_UP)) { 536 wil_info(wil, "No recovery - interface is down\n"); 537 return; 538 } 539 wdev = ndev->ieee80211_ptr; 540 541 /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO 542 * passed since last recovery attempt 543 */ 544 if (time_is_after_jiffies(wil->last_fw_recovery + 545 WIL6210_FW_RECOVERY_TO)) 546 wil->recovery_count++; 547 else 548 wil->recovery_count = 1; /* fw was alive for a long time */ 549 550 if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) { 551 wil_err(wil, "too many recovery attempts (%d), giving up\n", 552 wil->recovery_count); 553 return; 554 } 555 556 wil->last_fw_recovery = jiffies; 557 558 wil_info(wil, "fw error recovery requested (try %d)...\n", 559 wil->recovery_count); 560 if (!no_fw_recovery) 561 wil->recovery_state = fw_recovery_running; 562 if (wil_wait_for_recovery(wil) != 0) 563 return; 564 565 rtnl_lock(); 566 mutex_lock(&wil->mutex); 567 /* Needs adaptation for multiple VIFs 568 * need to go over all VIFs and consider the appropriate 569 * recovery because each one can have different iftype. 570 */ 571 switch (wdev->iftype) { 572 case NL80211_IFTYPE_STATION: 573 case NL80211_IFTYPE_P2P_CLIENT: 574 case NL80211_IFTYPE_MONITOR: 575 /* silent recovery, upper layers will see disconnect */ 576 __wil_down(wil); 577 __wil_up(wil); 578 break; 579 case NL80211_IFTYPE_AP: 580 case NL80211_IFTYPE_P2P_GO: 581 if (no_fw_recovery) /* upper layers do recovery */ 582 break; 583 /* silent recovery, upper layers will see disconnect */ 584 __wil_down(wil); 585 __wil_up(wil); 586 mutex_unlock(&wil->mutex); 587 wil_cfg80211_ap_recovery(wil); 588 mutex_lock(&wil->mutex); 589 wil_info(wil, "... completed\n"); 590 break; 591 default: 592 wil_err(wil, "No recovery - unknown interface type %d\n", 593 wdev->iftype); 594 break; 595 } 596 597 mutex_unlock(&wil->mutex); 598 rtnl_unlock(); 599 } 600 wil_find_free_ring(struct wil6210_priv * wil)601 static int wil_find_free_ring(struct wil6210_priv *wil) 602 { 603 int i; 604 int min_ring_id = wil_get_min_tx_ring_id(wil); 605 606 for (i = min_ring_id; i < WIL6210_MAX_TX_RINGS; i++) { 607 if (!wil->ring_tx[i].va) 608 return i; 609 } 610 return -EINVAL; 611 } 612 wil_ring_init_tx(struct wil6210_vif * vif,int cid)613 int wil_ring_init_tx(struct wil6210_vif *vif, int cid) 614 { 615 struct wil6210_priv *wil = vif_to_wil(vif); 616 int rc = -EINVAL, ringid; 617 618 if (cid < 0) { 619 wil_err(wil, "No connection pending\n"); 620 goto out; 621 } 622 ringid = wil_find_free_ring(wil); 623 if (ringid < 0) { 624 wil_err(wil, "No free vring found\n"); 625 goto out; 626 } 627 628 wil_dbg_wmi(wil, "Configure for connection CID %d MID %d ring %d\n", 629 cid, vif->mid, ringid); 630 631 rc = wil->txrx_ops.ring_init_tx(vif, ringid, 1 << tx_ring_order, 632 cid, 0); 633 if (rc) 634 wil_err(wil, "init TX for CID %d MID %d vring %d failed\n", 635 cid, vif->mid, ringid); 636 637 out: 638 return rc; 639 } 640 wil_bcast_init(struct wil6210_vif * vif)641 int wil_bcast_init(struct wil6210_vif *vif) 642 { 643 struct wil6210_priv *wil = vif_to_wil(vif); 644 int ri = vif->bcast_ring, rc; 645 646 if (ri >= 0 && wil->ring_tx[ri].va) 647 return 0; 648 649 ri = wil_find_free_ring(wil); 650 if (ri < 0) 651 return ri; 652 653 vif->bcast_ring = ri; 654 rc = wil->txrx_ops.ring_init_bcast(vif, ri, 1 << bcast_ring_order); 655 if (rc) 656 vif->bcast_ring = -1; 657 658 return rc; 659 } 660 wil_bcast_fini(struct wil6210_vif * vif)661 void wil_bcast_fini(struct wil6210_vif *vif) 662 { 663 struct wil6210_priv *wil = vif_to_wil(vif); 664 int ri = vif->bcast_ring; 665 666 if (ri < 0) 667 return; 668 669 vif->bcast_ring = -1; 670 wil_ring_fini_tx(wil, ri); 671 } 672 wil_bcast_fini_all(struct wil6210_priv * wil)673 void wil_bcast_fini_all(struct wil6210_priv *wil) 674 { 675 int i; 676 struct wil6210_vif *vif; 677 678 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 679 vif = wil->vifs[i]; 680 if (vif) 681 wil_bcast_fini(vif); 682 } 683 } 684 wil_priv_init(struct wil6210_priv * wil)685 int wil_priv_init(struct wil6210_priv *wil) 686 { 687 uint i; 688 689 wil_dbg_misc(wil, "priv_init\n"); 690 691 memset(wil->sta, 0, sizeof(wil->sta)); 692 for (i = 0; i < WIL6210_MAX_CID; i++) { 693 spin_lock_init(&wil->sta[i].tid_rx_lock); 694 wil->sta[i].mid = U8_MAX; 695 } 696 697 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 698 spin_lock_init(&wil->ring_tx_data[i].lock); 699 wil->ring2cid_tid[i][0] = WIL6210_MAX_CID; 700 } 701 702 mutex_init(&wil->mutex); 703 mutex_init(&wil->vif_mutex); 704 mutex_init(&wil->wmi_mutex); 705 mutex_init(&wil->halp.lock); 706 707 init_completion(&wil->wmi_ready); 708 init_completion(&wil->wmi_call); 709 init_completion(&wil->halp.comp); 710 711 INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); 712 INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); 713 714 INIT_LIST_HEAD(&wil->pending_wmi_ev); 715 spin_lock_init(&wil->wmi_ev_lock); 716 spin_lock_init(&wil->net_queue_lock); 717 spin_lock_init(&wil->eap_lock); 718 719 init_waitqueue_head(&wil->wq); 720 init_rwsem(&wil->mem_lock); 721 722 wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi"); 723 if (!wil->wmi_wq) 724 return -EAGAIN; 725 726 wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service"); 727 if (!wil->wq_service) 728 goto out_wmi_wq; 729 730 wil->last_fw_recovery = jiffies; 731 wil->tx_interframe_timeout = WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT; 732 wil->rx_interframe_timeout = WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT; 733 wil->tx_max_burst_duration = WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT; 734 wil->rx_max_burst_duration = WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT; 735 736 if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT) 737 rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT; 738 739 wil->ps_profile = WMI_PS_PROFILE_TYPE_DEFAULT; 740 741 wil->wakeup_trigger = WMI_WAKEUP_TRIGGER_UCAST | 742 WMI_WAKEUP_TRIGGER_BCAST; 743 memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats)); 744 wil->ring_idle_trsh = 16; 745 746 wil->reply_mid = U8_MAX; 747 wil->max_vifs = 1; 748 wil->max_assoc_sta = max_assoc_sta; 749 750 /* edma configuration can be updated via debugfs before allocation */ 751 wil->num_rx_status_rings = WIL_DEFAULT_NUM_RX_STATUS_RINGS; 752 wil->tx_status_ring_order = WIL_TX_SRING_SIZE_ORDER_DEFAULT; 753 754 /* Rx status ring size should be bigger than the number of RX buffers 755 * in order to prevent backpressure on the status ring, which may 756 * cause HW freeze. 757 */ 758 wil->rx_status_ring_order = WIL_RX_SRING_SIZE_ORDER_DEFAULT; 759 /* Number of RX buffer IDs should be bigger than the RX descriptor 760 * ring size as in HW reorder flow, the HW can consume additional 761 * buffers before releasing the previous ones. 762 */ 763 wil->rx_buff_id_count = WIL_RX_BUFF_ARR_SIZE_DEFAULT; 764 765 wil->amsdu_en = true; 766 767 return 0; 768 769 out_wmi_wq: 770 destroy_workqueue(wil->wmi_wq); 771 772 return -EAGAIN; 773 } 774 wil6210_bus_request(struct wil6210_priv * wil,u32 kbps)775 void wil6210_bus_request(struct wil6210_priv *wil, u32 kbps) 776 { 777 if (wil->platform_ops.bus_request) { 778 wil->bus_request_kbps = kbps; 779 wil->platform_ops.bus_request(wil->platform_handle, kbps); 780 } 781 } 782 783 /** 784 * wil6210_disconnect - disconnect one connection 785 * @vif: virtual interface context 786 * @bssid: peer to disconnect, NULL to disconnect all 787 * @reason_code: Reason code for the Disassociation frame 788 * 789 * Disconnect and release associated resources. Issue WMI 790 * command(s) to trigger MAC disconnect. When command was issued 791 * successfully, call the wil6210_disconnect_complete function 792 * to handle the event synchronously 793 */ wil6210_disconnect(struct wil6210_vif * vif,const u8 * bssid,u16 reason_code)794 void wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid, 795 u16 reason_code) 796 { 797 struct wil6210_priv *wil = vif_to_wil(vif); 798 799 wil_dbg_misc(wil, "disconnecting\n"); 800 801 del_timer_sync(&vif->connect_timer); 802 _wil6210_disconnect(vif, bssid, reason_code); 803 } 804 805 /** 806 * wil6210_disconnect_complete - handle disconnect event 807 * @vif: virtual interface context 808 * @bssid: peer to disconnect, NULL to disconnect all 809 * @reason_code: Reason code for the Disassociation frame 810 * 811 * Release associated resources and indicate upper layers the 812 * connection is terminated. 813 */ wil6210_disconnect_complete(struct wil6210_vif * vif,const u8 * bssid,u16 reason_code)814 void wil6210_disconnect_complete(struct wil6210_vif *vif, const u8 *bssid, 815 u16 reason_code) 816 { 817 struct wil6210_priv *wil = vif_to_wil(vif); 818 819 wil_dbg_misc(wil, "got disconnect\n"); 820 821 del_timer_sync(&vif->connect_timer); 822 _wil6210_disconnect_complete(vif, bssid, reason_code); 823 } 824 wil_priv_deinit(struct wil6210_priv * wil)825 void wil_priv_deinit(struct wil6210_priv *wil) 826 { 827 wil_dbg_misc(wil, "priv_deinit\n"); 828 829 wil_set_recovery_state(wil, fw_recovery_idle); 830 cancel_work_sync(&wil->fw_error_worker); 831 wmi_event_flush(wil); 832 destroy_workqueue(wil->wq_service); 833 destroy_workqueue(wil->wmi_wq); 834 kfree(wil->brd_info); 835 } 836 wil_shutdown_bl(struct wil6210_priv * wil)837 static void wil_shutdown_bl(struct wil6210_priv *wil) 838 { 839 u32 val; 840 841 wil_s(wil, RGF_USER_BL + 842 offsetof(struct bl_dedicated_registers_v1, 843 bl_shutdown_handshake), BL_SHUTDOWN_HS_GRTD); 844 845 usleep_range(100, 150); 846 847 val = wil_r(wil, RGF_USER_BL + 848 offsetof(struct bl_dedicated_registers_v1, 849 bl_shutdown_handshake)); 850 if (val & BL_SHUTDOWN_HS_RTD) { 851 wil_dbg_misc(wil, "BL is ready for halt\n"); 852 return; 853 } 854 855 wil_err(wil, "BL did not report ready for halt\n"); 856 } 857 858 /* this format is used by ARC embedded CPU for instruction memory */ ARC_me_imm32(u32 d)859 static inline u32 ARC_me_imm32(u32 d) 860 { 861 return ((d & 0xffff0000) >> 16) | ((d & 0x0000ffff) << 16); 862 } 863 864 /* defines access to interrupt vectors for wil_freeze_bl */ 865 #define ARC_IRQ_VECTOR_OFFSET(N) ((N) * 8) 866 /* ARC long jump instruction */ 867 #define ARC_JAL_INST (0x20200f80) 868 wil_freeze_bl(struct wil6210_priv * wil)869 static void wil_freeze_bl(struct wil6210_priv *wil) 870 { 871 u32 jal, upc, saved; 872 u32 ivt3 = ARC_IRQ_VECTOR_OFFSET(3); 873 874 jal = wil_r(wil, wil->iccm_base + ivt3); 875 if (jal != ARC_me_imm32(ARC_JAL_INST)) { 876 wil_dbg_misc(wil, "invalid IVT entry found, skipping\n"); 877 return; 878 } 879 880 /* prevent the target from entering deep sleep 881 * and disabling memory access 882 */ 883 saved = wil_r(wil, RGF_USER_USAGE_8); 884 wil_w(wil, RGF_USER_USAGE_8, saved | BIT_USER_PREVENT_DEEP_SLEEP); 885 usleep_range(20, 25); /* let the BL process the bit */ 886 887 /* redirect to endless loop in the INT_L1 context and let it trap */ 888 wil_w(wil, wil->iccm_base + ivt3 + 4, ARC_me_imm32(ivt3)); 889 usleep_range(20, 25); /* let the BL get into the trap */ 890 891 /* verify the BL is frozen */ 892 upc = wil_r(wil, RGF_USER_CPU_PC); 893 if (upc < ivt3 || (upc > (ivt3 + 8))) 894 wil_dbg_misc(wil, "BL freeze failed, PC=0x%08X\n", upc); 895 896 wil_w(wil, RGF_USER_USAGE_8, saved); 897 } 898 wil_bl_prepare_halt(struct wil6210_priv * wil)899 static void wil_bl_prepare_halt(struct wil6210_priv *wil) 900 { 901 u32 tmp, ver; 902 903 /* before halting device CPU driver must make sure BL is not accessing 904 * host memory. This is done differently depending on BL version: 905 * 1. For very old BL versions the procedure is skipped 906 * (not supported). 907 * 2. For old BL version we use a special trick to freeze the BL 908 * 3. For new BL versions we shutdown the BL using handshake procedure. 909 */ 910 tmp = wil_r(wil, RGF_USER_BL + 911 offsetof(struct bl_dedicated_registers_v0, 912 boot_loader_struct_version)); 913 if (!tmp) { 914 wil_dbg_misc(wil, "old BL, skipping halt preparation\n"); 915 return; 916 } 917 918 tmp = wil_r(wil, RGF_USER_BL + 919 offsetof(struct bl_dedicated_registers_v1, 920 bl_shutdown_handshake)); 921 ver = BL_SHUTDOWN_HS_PROT_VER(tmp); 922 923 if (ver > 0) 924 wil_shutdown_bl(wil); 925 else 926 wil_freeze_bl(wil); 927 } 928 wil_halt_cpu(struct wil6210_priv * wil)929 static inline void wil_halt_cpu(struct wil6210_priv *wil) 930 { 931 if (wil->hw_version >= HW_VER_TALYN_MB) { 932 wil_w(wil, RGF_USER_USER_CPU_0_TALYN_MB, 933 BIT_USER_USER_CPU_MAN_RST); 934 wil_w(wil, RGF_USER_MAC_CPU_0_TALYN_MB, 935 BIT_USER_MAC_CPU_MAN_RST); 936 } else { 937 wil_w(wil, RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST); 938 wil_w(wil, RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST); 939 } 940 } 941 wil_release_cpu(struct wil6210_priv * wil)942 static inline void wil_release_cpu(struct wil6210_priv *wil) 943 { 944 /* Start CPU */ 945 if (wil->hw_version >= HW_VER_TALYN_MB) 946 wil_w(wil, RGF_USER_USER_CPU_0_TALYN_MB, 1); 947 else 948 wil_w(wil, RGF_USER_USER_CPU_0, 1); 949 } 950 wil_set_oob_mode(struct wil6210_priv * wil,u8 mode)951 static void wil_set_oob_mode(struct wil6210_priv *wil, u8 mode) 952 { 953 wil_info(wil, "oob_mode to %d\n", mode); 954 switch (mode) { 955 case 0: 956 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE | 957 BIT_USER_OOB_R2_MODE); 958 break; 959 case 1: 960 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE); 961 wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE); 962 break; 963 case 2: 964 wil_c(wil, RGF_USER_USAGE_6, BIT_USER_OOB_MODE); 965 wil_s(wil, RGF_USER_USAGE_6, BIT_USER_OOB_R2_MODE); 966 break; 967 default: 968 wil_err(wil, "invalid oob_mode: %d\n", mode); 969 } 970 } 971 wil_wait_device_ready(struct wil6210_priv * wil,int no_flash)972 static int wil_wait_device_ready(struct wil6210_priv *wil, int no_flash) 973 { 974 int delay = 0; 975 u32 x, x1 = 0; 976 977 /* wait until device ready. */ 978 if (no_flash) { 979 msleep(PMU_READY_DELAY_MS); 980 981 wil_dbg_misc(wil, "Reset completed\n"); 982 } else { 983 do { 984 msleep(RST_DELAY); 985 x = wil_r(wil, RGF_USER_BL + 986 offsetof(struct bl_dedicated_registers_v0, 987 boot_loader_ready)); 988 if (x1 != x) { 989 wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", 990 x1, x); 991 x1 = x; 992 } 993 if (delay++ > RST_COUNT) { 994 wil_err(wil, "Reset not completed, bl.ready 0x%08x\n", 995 x); 996 return -ETIME; 997 } 998 } while (x != BL_READY); 999 1000 wil_dbg_misc(wil, "Reset completed in %d ms\n", 1001 delay * RST_DELAY); 1002 } 1003 1004 return 0; 1005 } 1006 wil_wait_device_ready_talyn_mb(struct wil6210_priv * wil)1007 static int wil_wait_device_ready_talyn_mb(struct wil6210_priv *wil) 1008 { 1009 u32 otp_hw; 1010 u8 signature_status; 1011 bool otp_signature_err; 1012 bool hw_section_done; 1013 u32 otp_qc_secured; 1014 int delay = 0; 1015 1016 /* Wait for OTP signature test to complete */ 1017 usleep_range(2000, 2200); 1018 1019 wil->boot_config = WIL_BOOT_ERR; 1020 1021 /* Poll until OTP signature status is valid. 1022 * In vanilla and development modes, when signature test is complete 1023 * HW sets BIT_OTP_SIGNATURE_ERR_TALYN_MB. 1024 * In production mode BIT_OTP_SIGNATURE_ERR_TALYN_MB remains 0, poll 1025 * for signature status change to 2 or 3. 1026 */ 1027 do { 1028 otp_hw = wil_r(wil, RGF_USER_OTP_HW_RD_MACHINE_1); 1029 signature_status = WIL_GET_BITS(otp_hw, 8, 9); 1030 otp_signature_err = otp_hw & BIT_OTP_SIGNATURE_ERR_TALYN_MB; 1031 1032 if (otp_signature_err && 1033 signature_status == WIL_SIG_STATUS_VANILLA) { 1034 wil->boot_config = WIL_BOOT_VANILLA; 1035 break; 1036 } 1037 if (otp_signature_err && 1038 signature_status == WIL_SIG_STATUS_DEVELOPMENT) { 1039 wil->boot_config = WIL_BOOT_DEVELOPMENT; 1040 break; 1041 } 1042 if (!otp_signature_err && 1043 signature_status == WIL_SIG_STATUS_PRODUCTION) { 1044 wil->boot_config = WIL_BOOT_PRODUCTION; 1045 break; 1046 } 1047 if (!otp_signature_err && 1048 signature_status == 1049 WIL_SIG_STATUS_CORRUPTED_PRODUCTION) { 1050 /* Unrecognized OTP signature found. Possibly a 1051 * corrupted production signature, access control 1052 * is applied as in production mode, therefore 1053 * do not fail 1054 */ 1055 wil->boot_config = WIL_BOOT_PRODUCTION; 1056 break; 1057 } 1058 if (delay++ > OTP_HW_COUNT) 1059 break; 1060 1061 usleep_range(OTP_HW_DELAY, OTP_HW_DELAY + 10); 1062 } while (!otp_signature_err && signature_status == 0); 1063 1064 if (wil->boot_config == WIL_BOOT_ERR) { 1065 wil_err(wil, 1066 "invalid boot config, signature_status %d otp_signature_err %d\n", 1067 signature_status, otp_signature_err); 1068 return -ETIME; 1069 } 1070 1071 wil_dbg_misc(wil, 1072 "signature test done in %d usec, otp_hw 0x%x, boot_config %d\n", 1073 delay * OTP_HW_DELAY, otp_hw, wil->boot_config); 1074 1075 if (wil->boot_config == WIL_BOOT_VANILLA) 1076 /* Assuming not SPI boot (currently not supported) */ 1077 goto out; 1078 1079 hw_section_done = otp_hw & BIT_OTP_HW_SECTION_DONE_TALYN_MB; 1080 delay = 0; 1081 1082 while (!hw_section_done) { 1083 msleep(RST_DELAY); 1084 1085 otp_hw = wil_r(wil, RGF_USER_OTP_HW_RD_MACHINE_1); 1086 hw_section_done = otp_hw & BIT_OTP_HW_SECTION_DONE_TALYN_MB; 1087 1088 if (delay++ > RST_COUNT) { 1089 wil_err(wil, "TO waiting for hw_section_done\n"); 1090 return -ETIME; 1091 } 1092 } 1093 1094 wil_dbg_misc(wil, "HW section done in %d ms\n", delay * RST_DELAY); 1095 1096 otp_qc_secured = wil_r(wil, RGF_OTP_QC_SECURED); 1097 wil->secured_boot = otp_qc_secured & BIT_BOOT_FROM_ROM ? 1 : 0; 1098 wil_dbg_misc(wil, "secured boot is %sabled\n", 1099 wil->secured_boot ? "en" : "dis"); 1100 1101 out: 1102 wil_dbg_misc(wil, "Reset completed\n"); 1103 1104 return 0; 1105 } 1106 wil_target_reset(struct wil6210_priv * wil,int no_flash)1107 static int wil_target_reset(struct wil6210_priv *wil, int no_flash) 1108 { 1109 u32 x; 1110 int rc; 1111 1112 wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name); 1113 1114 if (wil->hw_version < HW_VER_TALYN) { 1115 /* Clear MAC link up */ 1116 wil_s(wil, RGF_HP_CTRL, BIT(15)); 1117 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, 1118 BIT_HPAL_PERST_FROM_PAD); 1119 wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); 1120 } 1121 1122 wil_halt_cpu(wil); 1123 1124 if (!no_flash) { 1125 /* clear all boot loader "ready" bits */ 1126 wil_w(wil, RGF_USER_BL + 1127 offsetof(struct bl_dedicated_registers_v0, 1128 boot_loader_ready), 0); 1129 /* this should be safe to write even with old BLs */ 1130 wil_w(wil, RGF_USER_BL + 1131 offsetof(struct bl_dedicated_registers_v1, 1132 bl_shutdown_handshake), 0); 1133 } 1134 /* Clear Fw Download notification */ 1135 wil_c(wil, RGF_USER_USAGE_6, BIT(0)); 1136 1137 wil_s(wil, RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); 1138 /* XTAL stabilization should take about 3ms */ 1139 usleep_range(5000, 7000); 1140 x = wil_r(wil, RGF_CAF_PLL_LOCK_STATUS); 1141 if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { 1142 wil_err(wil, "Xtal stabilization timeout\n" 1143 "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); 1144 return -ETIME; 1145 } 1146 /* switch 10k to XTAL*/ 1147 wil_c(wil, RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); 1148 /* 40 MHz */ 1149 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); 1150 1151 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); 1152 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); 1153 1154 if (wil->hw_version >= HW_VER_TALYN_MB) { 1155 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x7e000000); 1156 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003f); 1157 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0xc00000f0); 1158 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xffe7fe00); 1159 } else { 1160 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xfe000000); 1161 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003f); 1162 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x000000f0); 1163 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xffe7fe00); 1164 } 1165 1166 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0); 1167 wil_w(wil, RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0); 1168 1169 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); 1170 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); 1171 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); 1172 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 1173 1174 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003); 1175 /* reset A2 PCIE AHB */ 1176 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 1177 1178 wil_w(wil, RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 1179 1180 if (wil->hw_version == HW_VER_TALYN_MB) 1181 rc = wil_wait_device_ready_talyn_mb(wil); 1182 else 1183 rc = wil_wait_device_ready(wil, no_flash); 1184 if (rc) 1185 return rc; 1186 1187 wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); 1188 1189 /* enable fix for HW bug related to the SA/DA swap in AP Rx */ 1190 wil_s(wil, RGF_DMA_OFUL_NID_0, BIT_DMA_OFUL_NID_0_RX_EXT_TR_EN | 1191 BIT_DMA_OFUL_NID_0_RX_EXT_A3_SRC); 1192 1193 if (wil->hw_version < HW_VER_TALYN_MB && no_flash) { 1194 /* Reset OTP HW vectors to fit 40MHz */ 1195 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME1, 0x60001); 1196 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME2, 0x20027); 1197 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME3, 0x1); 1198 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME4, 0x20027); 1199 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME5, 0x30003); 1200 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME6, 0x20002); 1201 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME7, 0x60001); 1202 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME8, 0x60001); 1203 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME9, 0x60001); 1204 wil_w(wil, RGF_USER_XPM_IFC_RD_TIME10, 0x60001); 1205 wil_w(wil, RGF_USER_XPM_RD_DOUT_SAMPLE_TIME, 0x57); 1206 } 1207 1208 return 0; 1209 } 1210 wil_collect_fw_info(struct wil6210_priv * wil)1211 static void wil_collect_fw_info(struct wil6210_priv *wil) 1212 { 1213 struct wiphy *wiphy = wil_to_wiphy(wil); 1214 u8 retry_short; 1215 int rc; 1216 1217 wil_refresh_fw_capabilities(wil); 1218 1219 rc = wmi_get_mgmt_retry(wil, &retry_short); 1220 if (!rc) { 1221 wiphy->retry_short = retry_short; 1222 wil_dbg_misc(wil, "FW retry_short: %d\n", retry_short); 1223 } 1224 } 1225 wil_refresh_fw_capabilities(struct wil6210_priv * wil)1226 void wil_refresh_fw_capabilities(struct wil6210_priv *wil) 1227 { 1228 struct wiphy *wiphy = wil_to_wiphy(wil); 1229 int features; 1230 1231 wil->keep_radio_on_during_sleep = 1232 test_bit(WIL_PLATFORM_CAPA_RADIO_ON_IN_SUSPEND, 1233 wil->platform_capa) && 1234 test_bit(WMI_FW_CAPABILITY_D3_SUSPEND, wil->fw_capabilities); 1235 1236 wil_info(wil, "keep_radio_on_during_sleep (%d)\n", 1237 wil->keep_radio_on_during_sleep); 1238 1239 if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities)) 1240 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1241 else 1242 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 1243 1244 if (test_bit(WMI_FW_CAPABILITY_PNO, wil->fw_capabilities)) { 1245 wiphy->max_sched_scan_reqs = 1; 1246 wiphy->max_sched_scan_ssids = WMI_MAX_PNO_SSID_NUM; 1247 wiphy->max_match_sets = WMI_MAX_PNO_SSID_NUM; 1248 wiphy->max_sched_scan_ie_len = WMI_MAX_IE_LEN; 1249 wiphy->max_sched_scan_plans = WMI_MAX_PLANS_NUM; 1250 } 1251 1252 if (test_bit(WMI_FW_CAPABILITY_TX_REQ_EXT, wil->fw_capabilities)) 1253 wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX; 1254 1255 if (wil->platform_ops.set_features) { 1256 features = (test_bit(WMI_FW_CAPABILITY_REF_CLOCK_CONTROL, 1257 wil->fw_capabilities) && 1258 test_bit(WIL_PLATFORM_CAPA_EXT_CLK, 1259 wil->platform_capa)) ? 1260 BIT(WIL_PLATFORM_FEATURE_FW_EXT_CLK_CONTROL) : 0; 1261 1262 if (wil->n_msi == 3) 1263 features |= BIT(WIL_PLATFORM_FEATURE_TRIPLE_MSI); 1264 1265 wil->platform_ops.set_features(wil->platform_handle, features); 1266 } 1267 1268 if (test_bit(WMI_FW_CAPABILITY_BACK_WIN_SIZE_64, 1269 wil->fw_capabilities)) { 1270 wil->max_agg_wsize = WIL_MAX_AGG_WSIZE_64; 1271 wil->max_ampdu_size = WIL_MAX_AMPDU_SIZE_128; 1272 } else { 1273 wil->max_agg_wsize = WIL_MAX_AGG_WSIZE; 1274 wil->max_ampdu_size = WIL_MAX_AMPDU_SIZE; 1275 } 1276 1277 update_supported_bands(wil); 1278 } 1279 wil_mbox_ring_le2cpus(struct wil6210_mbox_ring * r)1280 void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) 1281 { 1282 le32_to_cpus(&r->base); 1283 le16_to_cpus(&r->entry_size); 1284 le16_to_cpus(&r->size); 1285 le32_to_cpus(&r->tail); 1286 le32_to_cpus(&r->head); 1287 } 1288 1289 /* construct actual board file name to use */ wil_get_board_file(struct wil6210_priv * wil,char * buf,size_t len)1290 void wil_get_board_file(struct wil6210_priv *wil, char *buf, size_t len) 1291 { 1292 const char *board_file; 1293 const char *wil_talyn_fw_name = ftm_mode ? WIL_FW_NAME_FTM_TALYN : 1294 WIL_FW_NAME_TALYN; 1295 1296 if (wil->board_file) { 1297 board_file = wil->board_file; 1298 } else { 1299 /* If specific FW file is used for Talyn, 1300 * use specific board file 1301 */ 1302 if (strcmp(wil->wil_fw_name, wil_talyn_fw_name) == 0) 1303 board_file = WIL_BRD_NAME_TALYN; 1304 else 1305 board_file = WIL_BOARD_FILE_NAME; 1306 } 1307 1308 strscpy(buf, board_file, len); 1309 } 1310 wil_get_bl_info(struct wil6210_priv * wil)1311 static int wil_get_bl_info(struct wil6210_priv *wil) 1312 { 1313 struct net_device *ndev = wil->main_ndev; 1314 struct wiphy *wiphy = wil_to_wiphy(wil); 1315 union { 1316 struct bl_dedicated_registers_v0 bl0; 1317 struct bl_dedicated_registers_v1 bl1; 1318 } bl; 1319 u32 bl_ver; 1320 u8 *mac; 1321 u16 rf_status; 1322 1323 wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL), 1324 sizeof(bl)); 1325 bl_ver = le32_to_cpu(bl.bl0.boot_loader_struct_version); 1326 mac = bl.bl0.mac_address; 1327 1328 if (bl_ver == 0) { 1329 le32_to_cpus(&bl.bl0.rf_type); 1330 le32_to_cpus(&bl.bl0.baseband_type); 1331 rf_status = 0; /* actually, unknown */ 1332 wil_info(wil, 1333 "Boot Loader struct v%d: MAC = %pM RF = 0x%08x bband = 0x%08x\n", 1334 bl_ver, mac, 1335 bl.bl0.rf_type, bl.bl0.baseband_type); 1336 wil_info(wil, "Boot Loader build unknown for struct v0\n"); 1337 } else { 1338 le16_to_cpus(&bl.bl1.rf_type); 1339 rf_status = le16_to_cpu(bl.bl1.rf_status); 1340 le32_to_cpus(&bl.bl1.baseband_type); 1341 le16_to_cpus(&bl.bl1.bl_version_subminor); 1342 le16_to_cpus(&bl.bl1.bl_version_build); 1343 wil_info(wil, 1344 "Boot Loader struct v%d: MAC = %pM RF = 0x%04x (status 0x%04x) bband = 0x%08x\n", 1345 bl_ver, mac, 1346 bl.bl1.rf_type, rf_status, 1347 bl.bl1.baseband_type); 1348 wil_info(wil, "Boot Loader build %d.%d.%d.%d\n", 1349 bl.bl1.bl_version_major, bl.bl1.bl_version_minor, 1350 bl.bl1.bl_version_subminor, bl.bl1.bl_version_build); 1351 } 1352 1353 if (!is_valid_ether_addr(mac)) { 1354 wil_err(wil, "BL: Invalid MAC %pM\n", mac); 1355 return -EINVAL; 1356 } 1357 1358 ether_addr_copy(ndev->perm_addr, mac); 1359 ether_addr_copy(wiphy->perm_addr, mac); 1360 if (!is_valid_ether_addr(ndev->dev_addr)) 1361 eth_hw_addr_set(ndev, mac); 1362 1363 if (rf_status) {/* bad RF cable? */ 1364 wil_err(wil, "RF communication error 0x%04x", 1365 rf_status); 1366 return -EAGAIN; 1367 } 1368 1369 return 0; 1370 } 1371 wil_bl_crash_info(struct wil6210_priv * wil,bool is_err)1372 static void wil_bl_crash_info(struct wil6210_priv *wil, bool is_err) 1373 { 1374 u32 bl_assert_code, bl_assert_blink, bl_magic_number; 1375 u32 bl_ver = wil_r(wil, RGF_USER_BL + 1376 offsetof(struct bl_dedicated_registers_v0, 1377 boot_loader_struct_version)); 1378 1379 if (bl_ver < 2) 1380 return; 1381 1382 bl_assert_code = wil_r(wil, RGF_USER_BL + 1383 offsetof(struct bl_dedicated_registers_v1, 1384 bl_assert_code)); 1385 bl_assert_blink = wil_r(wil, RGF_USER_BL + 1386 offsetof(struct bl_dedicated_registers_v1, 1387 bl_assert_blink)); 1388 bl_magic_number = wil_r(wil, RGF_USER_BL + 1389 offsetof(struct bl_dedicated_registers_v1, 1390 bl_magic_number)); 1391 1392 if (is_err) { 1393 wil_err(wil, 1394 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n", 1395 bl_assert_code, bl_assert_blink, bl_magic_number); 1396 } else { 1397 wil_dbg_misc(wil, 1398 "BL assert code 0x%08x blink 0x%08x magic 0x%08x\n", 1399 bl_assert_code, bl_assert_blink, bl_magic_number); 1400 } 1401 } 1402 wil_get_otp_info(struct wil6210_priv * wil)1403 static int wil_get_otp_info(struct wil6210_priv *wil) 1404 { 1405 struct net_device *ndev = wil->main_ndev; 1406 struct wiphy *wiphy = wil_to_wiphy(wil); 1407 u8 mac[8]; 1408 int mac_addr; 1409 1410 /* OEM MAC has precedence */ 1411 mac_addr = RGF_OTP_OEM_MAC; 1412 wil_memcpy_fromio_32(mac, wil->csr + HOSTADDR(mac_addr), sizeof(mac)); 1413 1414 if (is_valid_ether_addr(mac)) { 1415 wil_info(wil, "using OEM MAC %pM\n", mac); 1416 } else { 1417 if (wil->hw_version >= HW_VER_TALYN_MB) 1418 mac_addr = RGF_OTP_MAC_TALYN_MB; 1419 else 1420 mac_addr = RGF_OTP_MAC; 1421 1422 wil_memcpy_fromio_32(mac, wil->csr + HOSTADDR(mac_addr), 1423 sizeof(mac)); 1424 } 1425 1426 if (!is_valid_ether_addr(mac)) { 1427 wil_err(wil, "Invalid MAC %pM\n", mac); 1428 return -EINVAL; 1429 } 1430 1431 ether_addr_copy(ndev->perm_addr, mac); 1432 ether_addr_copy(wiphy->perm_addr, mac); 1433 if (!is_valid_ether_addr(ndev->dev_addr)) 1434 eth_hw_addr_set(ndev, mac); 1435 1436 return 0; 1437 } 1438 wil_wait_for_fw_ready(struct wil6210_priv * wil)1439 static int wil_wait_for_fw_ready(struct wil6210_priv *wil) 1440 { 1441 ulong to = msecs_to_jiffies(2000); 1442 ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); 1443 1444 if (0 == left) { 1445 wil_err(wil, "Firmware not ready\n"); 1446 return -ETIME; 1447 } else { 1448 wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n", 1449 jiffies_to_msecs(to-left), wil->hw_version); 1450 } 1451 return 0; 1452 } 1453 wil_abort_scan(struct wil6210_vif * vif,bool sync)1454 void wil_abort_scan(struct wil6210_vif *vif, bool sync) 1455 { 1456 struct wil6210_priv *wil = vif_to_wil(vif); 1457 int rc; 1458 struct cfg80211_scan_info info = { 1459 .aborted = true, 1460 }; 1461 1462 lockdep_assert_held(&wil->vif_mutex); 1463 1464 if (!vif->scan_request) 1465 return; 1466 1467 wil_dbg_misc(wil, "Abort scan_request 0x%p\n", vif->scan_request); 1468 del_timer_sync(&vif->scan_timer); 1469 mutex_unlock(&wil->vif_mutex); 1470 rc = wmi_abort_scan(vif); 1471 if (!rc && sync) 1472 wait_event_interruptible_timeout(wil->wq, !vif->scan_request, 1473 msecs_to_jiffies( 1474 WAIT_FOR_SCAN_ABORT_MS)); 1475 1476 mutex_lock(&wil->vif_mutex); 1477 if (vif->scan_request) { 1478 cfg80211_scan_done(vif->scan_request, &info); 1479 vif->scan_request = NULL; 1480 } 1481 } 1482 wil_abort_scan_all_vifs(struct wil6210_priv * wil,bool sync)1483 void wil_abort_scan_all_vifs(struct wil6210_priv *wil, bool sync) 1484 { 1485 int i; 1486 1487 lockdep_assert_held(&wil->vif_mutex); 1488 1489 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1490 struct wil6210_vif *vif = wil->vifs[i]; 1491 1492 if (vif) 1493 wil_abort_scan(vif, sync); 1494 } 1495 } 1496 wil_ps_update(struct wil6210_priv * wil,enum wmi_ps_profile_type ps_profile)1497 int wil_ps_update(struct wil6210_priv *wil, enum wmi_ps_profile_type ps_profile) 1498 { 1499 int rc; 1500 1501 if (!test_bit(WMI_FW_CAPABILITY_PS_CONFIG, wil->fw_capabilities)) { 1502 wil_err(wil, "set_power_mgmt not supported\n"); 1503 return -EOPNOTSUPP; 1504 } 1505 1506 rc = wmi_ps_dev_profile_cfg(wil, ps_profile); 1507 if (rc) 1508 wil_err(wil, "wmi_ps_dev_profile_cfg failed (%d)\n", rc); 1509 else 1510 wil->ps_profile = ps_profile; 1511 1512 return rc; 1513 } 1514 wil_pre_fw_config(struct wil6210_priv * wil)1515 static void wil_pre_fw_config(struct wil6210_priv *wil) 1516 { 1517 wil_clear_fw_log_addr(wil); 1518 /* Mark FW as loaded from host */ 1519 wil_s(wil, RGF_USER_USAGE_6, 1); 1520 1521 /* clear any interrupts which on-card-firmware 1522 * may have set 1523 */ 1524 wil6210_clear_irq(wil); 1525 /* CAF_ICR - clear and mask */ 1526 /* it is W1C, clear by writing back same value */ 1527 if (wil->hw_version < HW_VER_TALYN_MB) { 1528 wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0); 1529 wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0); 1530 } 1531 /* clear PAL_UNIT_ICR (potential D0->D3 leftover) 1532 * In Talyn-MB host cannot access this register due to 1533 * access control, hence PAL_UNIT_ICR is cleared by the FW 1534 */ 1535 if (wil->hw_version < HW_VER_TALYN_MB) 1536 wil_s(wil, RGF_PAL_UNIT_ICR + offsetof(struct RGF_ICR, ICR), 1537 0); 1538 1539 if (wil->fw_calib_result > 0) { 1540 __le32 val = cpu_to_le32(wil->fw_calib_result | 1541 (CALIB_RESULT_SIGNATURE << 8)); 1542 wil_w(wil, RGF_USER_FW_CALIB_RESULT, (u32 __force)val); 1543 } 1544 } 1545 wil_restore_vifs(struct wil6210_priv * wil)1546 static int wil_restore_vifs(struct wil6210_priv *wil) 1547 { 1548 struct wil6210_vif *vif; 1549 struct net_device *ndev; 1550 struct wireless_dev *wdev; 1551 int i, rc; 1552 1553 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1554 vif = wil->vifs[i]; 1555 if (!vif) 1556 continue; 1557 vif->ap_isolate = 0; 1558 if (vif->mid) { 1559 ndev = vif_to_ndev(vif); 1560 wdev = vif_to_wdev(vif); 1561 rc = wmi_port_allocate(wil, vif->mid, ndev->dev_addr, 1562 wdev->iftype); 1563 if (rc) { 1564 wil_err(wil, "fail to restore VIF %d type %d, rc %d\n", 1565 i, wdev->iftype, rc); 1566 return rc; 1567 } 1568 } 1569 } 1570 1571 return 0; 1572 } 1573 1574 /* 1575 * Clear FW and ucode log start addr to indicate FW log is not ready. The host 1576 * driver clears the addresses before FW starts and FW initializes the address 1577 * when it is ready to send logs. 1578 */ wil_clear_fw_log_addr(struct wil6210_priv * wil)1579 void wil_clear_fw_log_addr(struct wil6210_priv *wil) 1580 { 1581 /* FW log addr */ 1582 wil_w(wil, RGF_USER_USAGE_1, 0); 1583 /* ucode log addr */ 1584 wil_w(wil, RGF_USER_USAGE_2, 0); 1585 wil_dbg_misc(wil, "Cleared FW and ucode log address"); 1586 } 1587 1588 /* 1589 * We reset all the structures, and we reset the UMAC. 1590 * After calling this routine, you're expected to reload 1591 * the firmware. 1592 */ wil_reset(struct wil6210_priv * wil,bool load_fw)1593 int wil_reset(struct wil6210_priv *wil, bool load_fw) 1594 { 1595 int rc, i; 1596 unsigned long status_flags = BIT(wil_status_resetting); 1597 int no_flash; 1598 struct wil6210_vif *vif; 1599 1600 wil_dbg_misc(wil, "reset\n"); 1601 1602 WARN_ON(!mutex_is_locked(&wil->mutex)); 1603 WARN_ON(test_bit(wil_status_napi_en, wil->status)); 1604 1605 if (debug_fw) { 1606 static const u8 mac[ETH_ALEN] = { 1607 0x00, 0xde, 0xad, 0x12, 0x34, 0x56, 1608 }; 1609 struct net_device *ndev = wil->main_ndev; 1610 1611 ether_addr_copy(ndev->perm_addr, mac); 1612 eth_hw_addr_set(ndev, ndev->perm_addr); 1613 return 0; 1614 } 1615 1616 if (wil->hw_version == HW_VER_UNKNOWN) 1617 return -ENODEV; 1618 1619 if (test_bit(WIL_PLATFORM_CAPA_T_PWR_ON_0, wil->platform_capa) && 1620 wil->hw_version < HW_VER_TALYN_MB) { 1621 wil_dbg_misc(wil, "Notify FW to set T_POWER_ON=0\n"); 1622 wil_s(wil, RGF_USER_USAGE_8, BIT_USER_SUPPORT_T_POWER_ON_0); 1623 } 1624 1625 if (test_bit(WIL_PLATFORM_CAPA_EXT_CLK, wil->platform_capa)) { 1626 wil_dbg_misc(wil, "Notify FW on ext clock configuration\n"); 1627 wil_s(wil, RGF_USER_USAGE_8, BIT_USER_EXT_CLK); 1628 } 1629 1630 if (wil->platform_ops.notify) { 1631 rc = wil->platform_ops.notify(wil->platform_handle, 1632 WIL_PLATFORM_EVT_PRE_RESET); 1633 if (rc) 1634 wil_err(wil, "PRE_RESET platform notify failed, rc %d\n", 1635 rc); 1636 } 1637 1638 set_bit(wil_status_resetting, wil->status); 1639 mutex_lock(&wil->vif_mutex); 1640 wil_abort_scan_all_vifs(wil, false); 1641 mutex_unlock(&wil->vif_mutex); 1642 1643 for (i = 0; i < GET_MAX_VIFS(wil); i++) { 1644 vif = wil->vifs[i]; 1645 if (vif) { 1646 cancel_work_sync(&vif->disconnect_worker); 1647 wil6210_disconnect(vif, NULL, 1648 WLAN_REASON_DEAUTH_LEAVING); 1649 vif->ptk_rekey_state = WIL_REKEY_IDLE; 1650 } 1651 } 1652 wil_bcast_fini_all(wil); 1653 1654 /* Disable device led before reset*/ 1655 wmi_led_cfg(wil, false); 1656 1657 down_write(&wil->mem_lock); 1658 1659 /* prevent NAPI from being scheduled and prevent wmi commands */ 1660 mutex_lock(&wil->wmi_mutex); 1661 if (test_bit(wil_status_suspending, wil->status)) 1662 status_flags |= BIT(wil_status_suspending); 1663 bitmap_and(wil->status, wil->status, &status_flags, 1664 wil_status_last); 1665 wil_dbg_misc(wil, "wil->status (0x%lx)\n", *wil->status); 1666 mutex_unlock(&wil->wmi_mutex); 1667 1668 wil_mask_irq(wil); 1669 1670 wmi_event_flush(wil); 1671 1672 flush_workqueue(wil->wq_service); 1673 flush_workqueue(wil->wmi_wq); 1674 1675 no_flash = test_bit(hw_capa_no_flash, wil->hw_capa); 1676 if (!no_flash) 1677 wil_bl_crash_info(wil, false); 1678 wil_disable_irq(wil); 1679 rc = wil_target_reset(wil, no_flash); 1680 wil6210_clear_irq(wil); 1681 wil_enable_irq(wil); 1682 wil->txrx_ops.rx_fini(wil); 1683 wil->txrx_ops.tx_fini(wil); 1684 if (rc) { 1685 if (!no_flash) 1686 wil_bl_crash_info(wil, true); 1687 goto out; 1688 } 1689 1690 if (no_flash) { 1691 rc = wil_get_otp_info(wil); 1692 } else { 1693 rc = wil_get_bl_info(wil); 1694 if (rc == -EAGAIN && !load_fw) 1695 /* ignore RF error if not going up */ 1696 rc = 0; 1697 } 1698 if (rc) 1699 goto out; 1700 1701 wil_set_oob_mode(wil, oob_mode); 1702 if (load_fw) { 1703 char board_file[WIL_BOARD_FILE_MAX_NAMELEN]; 1704 1705 if (wil->secured_boot) { 1706 wil_err(wil, "secured boot is not supported\n"); 1707 up_write(&wil->mem_lock); 1708 return -ENOTSUPP; 1709 } 1710 1711 board_file[0] = '\0'; 1712 wil_get_board_file(wil, board_file, sizeof(board_file)); 1713 wil_info(wil, "Use firmware <%s> + board <%s>\n", 1714 wil->wil_fw_name, board_file); 1715 1716 if (!no_flash) 1717 wil_bl_prepare_halt(wil); 1718 1719 wil_halt_cpu(wil); 1720 memset(wil->fw_version, 0, sizeof(wil->fw_version)); 1721 /* Loading f/w from the file */ 1722 rc = wil_request_firmware(wil, wil->wil_fw_name, true); 1723 if (rc) 1724 goto out; 1725 if (wil->num_of_brd_entries) 1726 rc = wil_request_board(wil, board_file); 1727 else 1728 rc = wil_request_firmware(wil, board_file, true); 1729 if (rc) 1730 goto out; 1731 1732 wil_pre_fw_config(wil); 1733 wil_release_cpu(wil); 1734 } 1735 1736 /* init after reset */ 1737 reinit_completion(&wil->wmi_ready); 1738 reinit_completion(&wil->wmi_call); 1739 reinit_completion(&wil->halp.comp); 1740 1741 clear_bit(wil_status_resetting, wil->status); 1742 1743 up_write(&wil->mem_lock); 1744 1745 if (load_fw) { 1746 wil_unmask_irq(wil); 1747 1748 /* we just started MAC, wait for FW ready */ 1749 rc = wil_wait_for_fw_ready(wil); 1750 if (rc) 1751 return rc; 1752 1753 /* check FW is responsive */ 1754 rc = wmi_echo(wil); 1755 if (rc) { 1756 wil_err(wil, "wmi_echo failed, rc %d\n", rc); 1757 return rc; 1758 } 1759 1760 wil->txrx_ops.configure_interrupt_moderation(wil); 1761 1762 /* Enable OFU rdy valid bug fix, to prevent hang in oful34_rx 1763 * while there is back-pressure from Host during RX 1764 */ 1765 if (wil->hw_version >= HW_VER_TALYN_MB) 1766 wil_s(wil, RGF_DMA_MISC_CTL, 1767 BIT_OFUL34_RDY_VALID_BUG_FIX_EN); 1768 1769 rc = wil_restore_vifs(wil); 1770 if (rc) { 1771 wil_err(wil, "failed to restore vifs, rc %d\n", rc); 1772 return rc; 1773 } 1774 1775 wil_collect_fw_info(wil); 1776 1777 if (wil->ps_profile != WMI_PS_PROFILE_TYPE_DEFAULT) 1778 wil_ps_update(wil, wil->ps_profile); 1779 1780 if (wil->platform_ops.notify) { 1781 rc = wil->platform_ops.notify(wil->platform_handle, 1782 WIL_PLATFORM_EVT_FW_RDY); 1783 if (rc) { 1784 wil_err(wil, "FW_RDY notify failed, rc %d\n", 1785 rc); 1786 rc = 0; 1787 } 1788 } 1789 } 1790 1791 return rc; 1792 1793 out: 1794 up_write(&wil->mem_lock); 1795 clear_bit(wil_status_resetting, wil->status); 1796 return rc; 1797 } 1798 wil_fw_error_recovery(struct wil6210_priv * wil)1799 void wil_fw_error_recovery(struct wil6210_priv *wil) 1800 { 1801 wil_dbg_misc(wil, "starting fw error recovery\n"); 1802 1803 if (test_bit(wil_status_resetting, wil->status)) { 1804 wil_info(wil, "Reset already in progress\n"); 1805 return; 1806 } 1807 1808 wil->recovery_state = fw_recovery_pending; 1809 schedule_work(&wil->fw_error_worker); 1810 } 1811 __wil_up(struct wil6210_priv * wil)1812 int __wil_up(struct wil6210_priv *wil) 1813 { 1814 struct net_device *ndev = wil->main_ndev; 1815 struct wireless_dev *wdev = ndev->ieee80211_ptr; 1816 int rc; 1817 1818 WARN_ON(!mutex_is_locked(&wil->mutex)); 1819 1820 rc = wil_reset(wil, true); 1821 if (rc) 1822 return rc; 1823 1824 /* Rx RING. After MAC and beacon */ 1825 if (rx_ring_order == 0) 1826 rx_ring_order = wil->hw_version < HW_VER_TALYN_MB ? 1827 WIL_RX_RING_SIZE_ORDER_DEFAULT : 1828 WIL_RX_RING_SIZE_ORDER_TALYN_DEFAULT; 1829 1830 rc = wil->txrx_ops.rx_init(wil, rx_ring_order); 1831 if (rc) 1832 return rc; 1833 1834 rc = wil->txrx_ops.tx_init(wil); 1835 if (rc) 1836 return rc; 1837 1838 switch (wdev->iftype) { 1839 case NL80211_IFTYPE_STATION: 1840 wil_dbg_misc(wil, "type: STATION\n"); 1841 ndev->type = ARPHRD_ETHER; 1842 break; 1843 case NL80211_IFTYPE_AP: 1844 wil_dbg_misc(wil, "type: AP\n"); 1845 ndev->type = ARPHRD_ETHER; 1846 break; 1847 case NL80211_IFTYPE_P2P_CLIENT: 1848 wil_dbg_misc(wil, "type: P2P_CLIENT\n"); 1849 ndev->type = ARPHRD_ETHER; 1850 break; 1851 case NL80211_IFTYPE_P2P_GO: 1852 wil_dbg_misc(wil, "type: P2P_GO\n"); 1853 ndev->type = ARPHRD_ETHER; 1854 break; 1855 case NL80211_IFTYPE_MONITOR: 1856 wil_dbg_misc(wil, "type: Monitor\n"); 1857 ndev->type = ARPHRD_IEEE80211_RADIOTAP; 1858 /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ 1859 break; 1860 default: 1861 return -EOPNOTSUPP; 1862 } 1863 1864 /* MAC address - pre-requisite for other commands */ 1865 wmi_set_mac_address(wil, ndev->dev_addr); 1866 1867 wil_dbg_misc(wil, "NAPI enable\n"); 1868 napi_enable(&wil->napi_rx); 1869 napi_enable(&wil->napi_tx); 1870 set_bit(wil_status_napi_en, wil->status); 1871 1872 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS); 1873 1874 return 0; 1875 } 1876 wil_up(struct wil6210_priv * wil)1877 int wil_up(struct wil6210_priv *wil) 1878 { 1879 int rc; 1880 1881 wil_dbg_misc(wil, "up\n"); 1882 1883 mutex_lock(&wil->mutex); 1884 rc = __wil_up(wil); 1885 mutex_unlock(&wil->mutex); 1886 1887 return rc; 1888 } 1889 __wil_down(struct wil6210_priv * wil)1890 int __wil_down(struct wil6210_priv *wil) 1891 { 1892 int rc; 1893 WARN_ON(!mutex_is_locked(&wil->mutex)); 1894 1895 set_bit(wil_status_resetting, wil->status); 1896 1897 wil6210_bus_request(wil, 0); 1898 1899 wil_disable_irq(wil); 1900 if (test_and_clear_bit(wil_status_napi_en, wil->status)) { 1901 napi_disable(&wil->napi_rx); 1902 napi_disable(&wil->napi_tx); 1903 wil_dbg_misc(wil, "NAPI disable\n"); 1904 } 1905 wil_enable_irq(wil); 1906 1907 mutex_lock(&wil->vif_mutex); 1908 wil_p2p_stop_radio_operations(wil); 1909 wil_abort_scan_all_vifs(wil, false); 1910 mutex_unlock(&wil->vif_mutex); 1911 1912 rc = wil_reset(wil, false); 1913 1914 return rc; 1915 } 1916 wil_down(struct wil6210_priv * wil)1917 int wil_down(struct wil6210_priv *wil) 1918 { 1919 int rc; 1920 1921 wil_dbg_misc(wil, "down\n"); 1922 1923 wil_set_recovery_state(wil, fw_recovery_idle); 1924 mutex_lock(&wil->mutex); 1925 rc = __wil_down(wil); 1926 mutex_unlock(&wil->mutex); 1927 1928 return rc; 1929 } 1930 wil_find_cid(struct wil6210_priv * wil,u8 mid,const u8 * mac)1931 int wil_find_cid(struct wil6210_priv *wil, u8 mid, const u8 *mac) 1932 { 1933 int i; 1934 int rc = -ENOENT; 1935 1936 for (i = 0; i < wil->max_assoc_sta; i++) { 1937 if (wil->sta[i].mid == mid && 1938 wil->sta[i].status != wil_sta_unused && 1939 ether_addr_equal(wil->sta[i].addr, mac)) { 1940 rc = i; 1941 break; 1942 } 1943 } 1944 1945 return rc; 1946 } 1947 wil_halp_vote(struct wil6210_priv * wil)1948 void wil_halp_vote(struct wil6210_priv *wil) 1949 { 1950 unsigned long rc; 1951 unsigned long to_jiffies = msecs_to_jiffies(WAIT_FOR_HALP_VOTE_MS); 1952 1953 if (wil->hw_version >= HW_VER_TALYN_MB) 1954 return; 1955 1956 mutex_lock(&wil->halp.lock); 1957 1958 wil_dbg_irq(wil, "halp_vote: start, HALP ref_cnt (%d)\n", 1959 wil->halp.ref_cnt); 1960 1961 if (++wil->halp.ref_cnt == 1) { 1962 reinit_completion(&wil->halp.comp); 1963 /* mark to IRQ context to handle HALP ICR */ 1964 wil->halp.handle_icr = true; 1965 wil6210_set_halp(wil); 1966 rc = wait_for_completion_timeout(&wil->halp.comp, to_jiffies); 1967 if (!rc) { 1968 wil_err(wil, "HALP vote timed out\n"); 1969 /* Mask HALP as done in case the interrupt is raised */ 1970 wil->halp.handle_icr = false; 1971 wil6210_mask_halp(wil); 1972 } else { 1973 wil_dbg_irq(wil, 1974 "halp_vote: HALP vote completed after %d ms\n", 1975 jiffies_to_msecs(to_jiffies - rc)); 1976 } 1977 } 1978 1979 wil_dbg_irq(wil, "halp_vote: end, HALP ref_cnt (%d)\n", 1980 wil->halp.ref_cnt); 1981 1982 mutex_unlock(&wil->halp.lock); 1983 } 1984 wil_halp_unvote(struct wil6210_priv * wil)1985 void wil_halp_unvote(struct wil6210_priv *wil) 1986 { 1987 if (wil->hw_version >= HW_VER_TALYN_MB) 1988 return; 1989 1990 WARN_ON(wil->halp.ref_cnt == 0); 1991 1992 mutex_lock(&wil->halp.lock); 1993 1994 wil_dbg_irq(wil, "halp_unvote: start, HALP ref_cnt (%d)\n", 1995 wil->halp.ref_cnt); 1996 1997 if (--wil->halp.ref_cnt == 0) { 1998 wil6210_clear_halp(wil); 1999 wil_dbg_irq(wil, "HALP unvote\n"); 2000 } 2001 2002 wil_dbg_irq(wil, "halp_unvote:end, HALP ref_cnt (%d)\n", 2003 wil->halp.ref_cnt); 2004 2005 mutex_unlock(&wil->halp.lock); 2006 } 2007 wil_init_txrx_ops(struct wil6210_priv * wil)2008 void wil_init_txrx_ops(struct wil6210_priv *wil) 2009 { 2010 if (wil->use_enhanced_dma_hw) 2011 wil_init_txrx_ops_edma(wil); 2012 else 2013 wil_init_txrx_ops_legacy_dma(wil); 2014 } 2015