drivers/net/wireless/ath/wil6210/main.c

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