drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <linux/etherdevice.h>
  19 #include <linux/module.h>
  20 #include <linux/inetdevice.h>
  21 #include <net/cfg80211.h>
  22 #include <net/rtnetlink.h>
  23 #include <net/addrconf.h>
  24 #include <net/ipv6.h>
  25 #include <brcmu_utils.h>
  26 #include <brcmu_wifi.h>
  27
  28 #include "core.h"
  29 #include "bus.h"
  30 #include "debug.h"
  31 #include "fwil_types.h"
  32 #include "p2p.h"
  33 #include "cfg80211.h"
  34 #include "fwil.h"
  35 #include "fwsignal.h"
  36 #include "feature.h"
  37 #include "proto.h"
  38 #include "pcie.h"
  39 #include "common.h"
  40
  41 #define MAX_WAIT_FOR_8021X_TX                   msecs_to_jiffies(950)
  42
  43 #define BRCMF_BSSIDX_INVALID                    -1
  44
  45 char *brcmf_ifname(struct brcmf_if *ifp)
  46 {
  47         if (!ifp)
  48                 return "<if_null>";
  49
  50         if (ifp->ndev)
  51                 return ifp->ndev->name;
  52
  53         return "<if_none>";
  54 }
  55
  56 struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx)
  57 {
  58         struct brcmf_if *ifp;
  59         s32 bsscfgidx;
  60
  61         if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
  62                 brcmf_err("ifidx %d out of range\n", ifidx);
  63                 return NULL;
  64         }
  65
  66         ifp = NULL;
  67         bsscfgidx = drvr->if2bss[ifidx];
  68         if (bsscfgidx >= 0)
  69                 ifp = drvr->iflist[bsscfgidx];
  70
  71         return ifp;
  72 }
  73
  74 static void _brcmf_set_multicast_list(struct work_struct *work)
  75 {
  76         struct brcmf_if *ifp;
  77         struct net_device *ndev;
  78         struct netdev_hw_addr *ha;
  79         u32 cmd_value, cnt;
  80         __le32 cnt_le;
  81         char *buf, *bufp;
  82         u32 buflen;
  83         s32 err;
  84
  85         ifp = container_of(work, struct brcmf_if, multicast_work);
  86
  87         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
  88
  89         ndev = ifp->ndev;
  90
  91         /* Determine initial value of allmulti flag */
  92         cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
  93
  94         /* Send down the multicast list first. */
  95         cnt = netdev_mc_count(ndev);
  96         buflen = sizeof(cnt) + (cnt * ETH_ALEN);
  97         buf = kmalloc(buflen, GFP_ATOMIC);
  98         if (!buf)
  99                 return;
 100         bufp = buf;
 101
 102         cnt_le = cpu_to_le32(cnt);
 103         memcpy(bufp, &cnt_le, sizeof(cnt_le));
 104         bufp += sizeof(cnt_le);
 105
 106         netdev_for_each_mc_addr(ha, ndev) {
 107                 if (!cnt)
 108                         break;
 109                 memcpy(bufp, ha->addr, ETH_ALEN);
 110                 bufp += ETH_ALEN;
 111                 cnt--;
 112         }
 113
 114         err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
 115         if (err < 0) {
 116                 brcmf_err("Setting mcast_list failed, %d\n", err);
 117                 cmd_value = cnt ? true : cmd_value;
 118         }
 119
 120         kfree(buf);
 121
 122         /*
 123          * Now send the allmulti setting.  This is based on the setting in the
 124          * net_device flags, but might be modified above to be turned on if we
 125          * were trying to set some addresses and dongle rejected it...
 126          */
 127         err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
 128         if (err < 0)
 129                 brcmf_err("Setting allmulti failed, %d\n", err);
 130
 131         /*Finally, pick up the PROMISC flag */
 132         cmd_value = (ndev->flags & IFF_PROMISC) ? true : false;
 133         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value);
 134         if (err < 0)
 135                 brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
 136                           err);
 137 }
 138
 139 #if IS_ENABLED(CONFIG_IPV6)
 140 static void _brcmf_update_ndtable(struct work_struct *work)
 141 {
 142         struct brcmf_if *ifp;
 143         int i, ret;
 144
 145         ifp = container_of(work, struct brcmf_if, ndoffload_work);
 146
 147         /* clear the table in firmware */
 148         ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip_clear", NULL, 0);
 149         if (ret) {
 150                 brcmf_dbg(TRACE, "fail to clear nd ip table err:%d\n", ret);
 151                 return;
 152         }
 153
 154         for (i = 0; i < ifp->ipv6addr_idx; i++) {
 155                 ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip",
 156                                                &ifp->ipv6_addr_tbl[i],
 157                                                sizeof(struct in6_addr));
 158                 if (ret)
 159                         brcmf_err("add nd ip err %d\n", ret);
 160         }
 161 }
 162 #else
 163 static void _brcmf_update_ndtable(struct work_struct *work)
 164 {
 165 }
 166 #endif
 167
 168 static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
 169 {
 170         struct brcmf_if *ifp = netdev_priv(ndev);
 171         struct sockaddr *sa = (struct sockaddr *)addr;
 172         int err;
 173
 174         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 175
 176         err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", sa->sa_data,
 177                                        ETH_ALEN);
 178         if (err < 0) {
 179                 brcmf_err("Setting cur_etheraddr failed, %d\n", err);
 180         } else {
 181                 brcmf_dbg(TRACE, "updated to %pM\n", sa->sa_data);
 182                 memcpy(ifp->mac_addr, sa->sa_data, ETH_ALEN);
 183                 memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
 184         }
 185         return err;
 186 }
 187
 188 static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
 189 {
 190         struct brcmf_if *ifp = netdev_priv(ndev);
 191
 192         schedule_work(&ifp->multicast_work);
 193 }
 194
 195 static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 196                                            struct net_device *ndev)
 197 {
 198         int ret;
 199         struct brcmf_if *ifp = netdev_priv(ndev);
 200         struct brcmf_pub *drvr = ifp->drvr;
 201         struct ethhdr *eh = (struct ethhdr *)(skb->data);
 202
 203         brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 204
 205         /* Can the device send data? */
 206         if (drvr->bus_if->state != BRCMF_BUS_UP) {
 207                 brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state);
 208                 netif_stop_queue(ndev);
 209                 dev_kfree_skb(skb);
 210                 ret = -ENODEV;
 211                 goto done;
 212         }
 213
 214         /* Make sure there's enough room for any header */
 215         if (skb_headroom(skb) < drvr->hdrlen) {
 216                 struct sk_buff *skb2;
 217
 218                 brcmf_dbg(INFO, "%s: insufficient headroom\n",
 219                           brcmf_ifname(ifp));
 220                 drvr->bus_if->tx_realloc++;
 221                 skb2 = skb_realloc_headroom(skb, drvr->hdrlen);
 222                 dev_kfree_skb(skb);
 223                 skb = skb2;
 224                 if (skb == NULL) {
 225                         brcmf_err("%s: skb_realloc_headroom failed\n",
 226                                   brcmf_ifname(ifp));
 227                         ret = -ENOMEM;
 228                         goto done;
 229                 }
 230         }
 231
 232         /* validate length for ether packet */
 233         if (skb->len < sizeof(*eh)) {
 234                 ret = -EINVAL;
 235                 dev_kfree_skb(skb);
 236                 goto done;
 237         }
 238
 239         if (eh->h_proto == htons(ETH_P_PAE))
 240                 atomic_inc(&ifp->pend_8021x_cnt);
 241
 242         ret = brcmf_fws_process_skb(ifp, skb);
 243
 244 done:
 245         if (ret) {
 246                 ifp->stats.tx_dropped++;
 247         } else {
 248                 ifp->stats.tx_packets++;
 249                 ifp->stats.tx_bytes += skb->len;
 250         }
 251
 252         /* Return ok: we always eat the packet */
 253         return NETDEV_TX_OK;
 254 }
 255
 256 void brcmf_txflowblock_if(struct brcmf_if *ifp,
 257                           enum brcmf_netif_stop_reason reason, bool state)
 258 {
 259         unsigned long flags;
 260
 261         if (!ifp || !ifp->ndev)
 262                 return;
 263
 264         brcmf_dbg(TRACE, "enter: bsscfgidx=%d stop=0x%X reason=%d state=%d\n",
 265                   ifp->bsscfgidx, ifp->netif_stop, reason, state);
 266
 267         spin_lock_irqsave(&ifp->netif_stop_lock, flags);
 268         if (state) {
 269                 if (!ifp->netif_stop)
 270                         netif_stop_queue(ifp->ndev);
 271                 ifp->netif_stop |= reason;
 272         } else {
 273                 ifp->netif_stop &= ~reason;
 274                 if (!ifp->netif_stop)
 275                         netif_wake_queue(ifp->ndev);
 276         }
 277         spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
 278 }
 279
 280 void brcmf_txflowblock(struct device *dev, bool state)
 281 {
 282         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 283         struct brcmf_pub *drvr = bus_if->drvr;
 284
 285         brcmf_dbg(TRACE, "Enter\n");
 286
 287         brcmf_fws_bus_blocked(drvr, state);
 288 }
 289
 290 void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
 291 {
 292         if (skb->pkt_type == PACKET_MULTICAST)
 293                 ifp->stats.multicast++;
 294
 295         if (!(ifp->ndev->flags & IFF_UP)) {
 296                 brcmu_pkt_buf_free_skb(skb);
 297                 return;
 298         }
 299
 300         ifp->stats.rx_bytes += skb->len;
 301         ifp->stats.rx_packets++;
 302
 303         brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol));
 304         if (in_interrupt())
 305                 netif_rx(skb);
 306         else
 307                 /* If the receive is not processed inside an ISR,
 308                  * the softirqd must be woken explicitly to service
 309                  * the NET_RX_SOFTIRQ.  This is handled by netif_rx_ni().
 310                  */
 311                 netif_rx_ni(skb);
 312 }
 313
 314 static int brcmf_rx_hdrpull(struct brcmf_pub *drvr, struct sk_buff *skb,
 315                             struct brcmf_if **ifp)
 316 {
 317         int ret;
 318
 319         /* process and remove protocol-specific header */
 320         ret = brcmf_proto_hdrpull(drvr, true, skb, ifp);
 321
 322         if (ret || !(*ifp) || !(*ifp)->ndev) {
 323                 if (ret != -ENODATA && *ifp)
 324                         (*ifp)->stats.rx_errors++;
 325                 brcmu_pkt_buf_free_skb(skb);
 326                 return -ENODATA;
 327         }
 328
 329         skb->protocol = eth_type_trans(skb, (*ifp)->ndev);
 330         return 0;
 331 }
 332
 333 void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event)
 334 {
 335         struct brcmf_if *ifp;
 336         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 337         struct brcmf_pub *drvr = bus_if->drvr;
 338
 339         brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
 340
 341         if (brcmf_rx_hdrpull(drvr, skb, &ifp))
 342                 return;
 343
 344         if (brcmf_proto_is_reorder_skb(skb)) {
 345                 brcmf_proto_rxreorder(ifp, skb);
 346         } else {
 347                 /* Process special event packets */
 348                 if (handle_event)
 349                         brcmf_fweh_process_skb(ifp->drvr, skb);
 350
 351                 brcmf_netif_rx(ifp, skb);
 352         }
 353 }
 354
 355 void brcmf_rx_event(struct device *dev, struct sk_buff *skb)
 356 {
 357         struct brcmf_if *ifp;
 358         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 359         struct brcmf_pub *drvr = bus_if->drvr;
 360
 361         brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
 362
 363         if (brcmf_rx_hdrpull(drvr, skb, &ifp))
 364                 return;
 365
 366         brcmf_fweh_process_skb(ifp->drvr, skb);
 367         brcmu_pkt_buf_free_skb(skb);
 368 }
 369
 370 void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
 371 {
 372         struct ethhdr *eh;
 373         u16 type;
 374
 375         eh = (struct ethhdr *)(txp->data);
 376         type = ntohs(eh->h_proto);
 377
 378         if (type == ETH_P_PAE) {
 379                 atomic_dec(&ifp->pend_8021x_cnt);
 380                 if (waitqueue_active(&ifp->pend_8021x_wait))
 381                         wake_up(&ifp->pend_8021x_wait);
 382         }
 383
 384         if (!success)
 385                 ifp->stats.tx_errors++;
 386
 387         brcmu_pkt_buf_free_skb(txp);
 388 }
 389
 390 void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
 391 {
 392         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 393         struct brcmf_pub *drvr = bus_if->drvr;
 394         struct brcmf_if *ifp;
 395
 396         /* await txstatus signal for firmware if active */
 397         if (brcmf_fws_fc_active(drvr->fws)) {
 398                 if (!success)
 399                         brcmf_fws_bustxfail(drvr->fws, txp);
 400         } else {
 401                 if (brcmf_proto_hdrpull(drvr, false, txp, &ifp))
 402                         brcmu_pkt_buf_free_skb(txp);
 403                 else
 404                         brcmf_txfinalize(ifp, txp, success);
 405         }
 406 }
 407
 408 static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
 409 {
 410         struct brcmf_if *ifp = netdev_priv(ndev);
 411
 412         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 413
 414         return &ifp->stats;
 415 }
 416
 417 static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
 418                                     struct ethtool_drvinfo *info)
 419 {
 420         struct brcmf_if *ifp = netdev_priv(ndev);
 421         struct brcmf_pub *drvr = ifp->drvr;
 422         char drev[BRCMU_DOTREV_LEN] = "n/a";
 423
 424         if (drvr->revinfo.result == 0)
 425                 brcmu_dotrev_str(drvr->revinfo.driverrev, drev);
 426         strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
 427         strlcpy(info->version, drev, sizeof(info->version));
 428         strlcpy(info->fw_version, drvr->fwver, sizeof(info->fw_version));
 429         strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
 430                 sizeof(info->bus_info));
 431 }
 432
 433 static const struct ethtool_ops brcmf_ethtool_ops = {
 434         .get_drvinfo = brcmf_ethtool_get_drvinfo,
 435 };
 436
 437 static int brcmf_netdev_stop(struct net_device *ndev)
 438 {
 439         struct brcmf_if *ifp = netdev_priv(ndev);
 440
 441         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 442
 443         brcmf_cfg80211_down(ndev);
 444
 445         brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear", NULL, 0);
 446
 447         brcmf_net_setcarrier(ifp, false);
 448
 449         return 0;
 450 }
 451
 452 static int brcmf_netdev_open(struct net_device *ndev)
 453 {
 454         struct brcmf_if *ifp = netdev_priv(ndev);
 455         struct brcmf_pub *drvr = ifp->drvr;
 456         struct brcmf_bus *bus_if = drvr->bus_if;
 457         u32 toe_ol;
 458
 459         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 460
 461         /* If bus is not ready, can't continue */
 462         if (bus_if->state != BRCMF_BUS_UP) {
 463                 brcmf_err("failed bus is not ready\n");
 464                 return -EAGAIN;
 465         }
 466
 467         atomic_set(&ifp->pend_8021x_cnt, 0);
 468
 469         /* Get current TOE mode from dongle */
 470         if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
 471             && (toe_ol & TOE_TX_CSUM_OL) != 0)
 472                 ndev->features |= NETIF_F_IP_CSUM;
 473         else
 474                 ndev->features &= ~NETIF_F_IP_CSUM;
 475
 476         if (brcmf_cfg80211_up(ndev)) {
 477                 brcmf_err("failed to bring up cfg80211\n");
 478                 return -EIO;
 479         }
 480
 481         /* Clear, carrier, set when connected or AP mode. */
 482         netif_carrier_off(ndev);
 483         return 0;
 484 }
 485
 486 static const struct net_device_ops brcmf_netdev_ops_pri = {
 487         .ndo_open = brcmf_netdev_open,
 488         .ndo_stop = brcmf_netdev_stop,
 489         .ndo_get_stats = brcmf_netdev_get_stats,
 490         .ndo_start_xmit = brcmf_netdev_start_xmit,
 491         .ndo_set_mac_address = brcmf_netdev_set_mac_address,
 492         .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
 493 };
 494
 495 int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
 496 {
 497         struct brcmf_pub *drvr = ifp->drvr;
 498         struct net_device *ndev;
 499         s32 err;
 500
 501         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
 502                   ifp->mac_addr);
 503         ndev = ifp->ndev;
 504
 505         /* set appropriate operations */
 506         ndev->netdev_ops = &brcmf_netdev_ops_pri;
 507
 508         ndev->needed_headroom += drvr->hdrlen;
 509         ndev->ethtool_ops = &brcmf_ethtool_ops;
 510
 511         drvr->rxsz = ndev->mtu + ndev->hard_header_len +
 512                               drvr->hdrlen;
 513
 514         /* set the mac address */
 515         memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
 516
 517         INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
 518         INIT_WORK(&ifp->ndoffload_work, _brcmf_update_ndtable);
 519
 520         if (rtnl_locked)
 521                 err = register_netdevice(ndev);
 522         else
 523                 err = register_netdev(ndev);
 524         if (err != 0) {
 525                 brcmf_err("couldn't register the net device\n");
 526                 goto fail;
 527         }
 528
 529         brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
 530         return 0;
 531
 532 fail:
 533         drvr->iflist[ifp->bsscfgidx] = NULL;
 534         ndev->netdev_ops = NULL;
 535         free_netdev(ndev);
 536         return -EBADE;
 537 }
 538
 539 static void brcmf_net_detach(struct net_device *ndev, bool rtnl_locked)
 540 {
 541         if (ndev->reg_state == NETREG_REGISTERED) {
 542                 if (rtnl_locked)
 543                         unregister_netdevice(ndev);
 544                 else
 545                         unregister_netdev(ndev);
 546         } else {
 547                 brcmf_cfg80211_free_netdev(ndev);
 548         }
 549 }
 550
 551 void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on)
 552 {
 553         struct net_device *ndev;
 554
 555         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d carrier=%d\n", ifp->bsscfgidx,
 556                   on);
 557
 558         ndev = ifp->ndev;
 559         brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_DISCONNECTED, !on);
 560         if (on) {
 561                 if (!netif_carrier_ok(ndev))
 562                         netif_carrier_on(ndev);
 563
 564         } else {
 565                 if (netif_carrier_ok(ndev))
 566                         netif_carrier_off(ndev);
 567         }
 568 }
 569
 570 static int brcmf_net_p2p_open(struct net_device *ndev)
 571 {
 572         brcmf_dbg(TRACE, "Enter\n");
 573
 574         return brcmf_cfg80211_up(ndev);
 575 }
 576
 577 static int brcmf_net_p2p_stop(struct net_device *ndev)
 578 {
 579         brcmf_dbg(TRACE, "Enter\n");
 580
 581         return brcmf_cfg80211_down(ndev);
 582 }
 583
 584 static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
 585                                             struct net_device *ndev)
 586 {
 587         if (skb)
 588                 dev_kfree_skb_any(skb);
 589
 590         return NETDEV_TX_OK;
 591 }
 592
 593 static const struct net_device_ops brcmf_netdev_ops_p2p = {
 594         .ndo_open = brcmf_net_p2p_open,
 595         .ndo_stop = brcmf_net_p2p_stop,
 596         .ndo_start_xmit = brcmf_net_p2p_start_xmit
 597 };
 598
 599 static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
 600 {
 601         struct net_device *ndev;
 602
 603         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
 604                   ifp->mac_addr);
 605         ndev = ifp->ndev;
 606
 607         ndev->netdev_ops = &brcmf_netdev_ops_p2p;
 608
 609         /* set the mac address */
 610         memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
 611
 612         if (register_netdev(ndev) != 0) {
 613                 brcmf_err("couldn't register the p2p net device\n");
 614                 goto fail;
 615         }
 616
 617         brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
 618
 619         return 0;
 620
 621 fail:
 622         ifp->drvr->iflist[ifp->bsscfgidx] = NULL;
 623         ndev->netdev_ops = NULL;
 624         free_netdev(ndev);
 625         return -EBADE;
 626 }
 627
 628 struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
 629                               bool is_p2pdev, const char *name, u8 *mac_addr)
 630 {
 631         struct brcmf_if *ifp;
 632         struct net_device *ndev;
 633
 634         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx, ifidx);
 635
 636         ifp = drvr->iflist[bsscfgidx];
 637         /*
 638          * Delete the existing interface before overwriting it
 639          * in case we missed the BRCMF_E_IF_DEL event.
 640          */
 641         if (ifp) {
 642                 if (ifidx) {
 643                         brcmf_err("ERROR: netdev:%s already exists\n",
 644                                   ifp->ndev->name);
 645                         netif_stop_queue(ifp->ndev);
 646                         brcmf_net_detach(ifp->ndev, false);
 647                         drvr->iflist[bsscfgidx] = NULL;
 648                 } else {
 649                         brcmf_dbg(INFO, "netdev:%s ignore IF event\n",
 650                                   ifp->ndev->name);
 651                         return ERR_PTR(-EINVAL);
 652                 }
 653         }
 654
 655         if (!drvr->settings->p2p_enable && is_p2pdev) {
 656                 /* this is P2P_DEVICE interface */
 657                 brcmf_dbg(INFO, "allocate non-netdev interface\n");
 658                 ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
 659                 if (!ifp)
 660                         return ERR_PTR(-ENOMEM);
 661         } else {
 662                 brcmf_dbg(INFO, "allocate netdev interface\n");
 663                 /* Allocate netdev, including space for private structure */
 664                 ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name,
 665                                     NET_NAME_UNKNOWN, ether_setup);
 666                 if (!ndev)
 667                         return ERR_PTR(-ENOMEM);
 668
 669                 ndev->destructor = brcmf_cfg80211_free_netdev;
 670                 ifp = netdev_priv(ndev);
 671                 ifp->ndev = ndev;
 672                 /* store mapping ifidx to bsscfgidx */
 673                 if (drvr->if2bss[ifidx] == BRCMF_BSSIDX_INVALID)
 674                         drvr->if2bss[ifidx] = bsscfgidx;
 675         }
 676
 677         ifp->drvr = drvr;
 678         drvr->iflist[bsscfgidx] = ifp;
 679         ifp->ifidx = ifidx;
 680         ifp->bsscfgidx = bsscfgidx;
 681
 682         init_waitqueue_head(&ifp->pend_8021x_wait);
 683         spin_lock_init(&ifp->netif_stop_lock);
 684
 685         if (mac_addr != NULL)
 686                 memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
 687
 688         brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
 689                   current->pid, name, ifp->mac_addr);
 690
 691         return ifp;
 692 }
 693
 694 static void brcmf_del_if(struct brcmf_pub *drvr, s32 bsscfgidx,
 695                          bool rtnl_locked)
 696 {
 697         struct brcmf_if *ifp;
 698
 699         ifp = drvr->iflist[bsscfgidx];
 700         drvr->iflist[bsscfgidx] = NULL;
 701         if (!ifp) {
 702                 brcmf_err("Null interface, bsscfgidx=%d\n", bsscfgidx);
 703                 return;
 704         }
 705         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx,
 706                   ifp->ifidx);
 707         if (drvr->if2bss[ifp->ifidx] == bsscfgidx)
 708                 drvr->if2bss[ifp->ifidx] = BRCMF_BSSIDX_INVALID;
 709         if (ifp->ndev) {
 710                 if (bsscfgidx == 0) {
 711                         if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
 712                                 rtnl_lock();
 713                                 brcmf_netdev_stop(ifp->ndev);
 714                                 rtnl_unlock();
 715                         }
 716                 } else {
 717                         netif_stop_queue(ifp->ndev);
 718                 }
 719
 720                 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
 721                         cancel_work_sync(&ifp->multicast_work);
 722                         cancel_work_sync(&ifp->ndoffload_work);
 723                 }
 724                 brcmf_net_detach(ifp->ndev, rtnl_locked);
 725         } else {
 726                 /* Only p2p device interfaces which get dynamically created
 727                  * end up here. In this case the p2p module should be informed
 728                  * about the removal of the interface within the firmware. If
 729                  * not then p2p commands towards the firmware will cause some
 730                  * serious troublesome side effects. The p2p module will clean
 731                  * up the ifp if needed.
 732                  */
 733                 brcmf_p2p_ifp_removed(ifp, rtnl_locked);
 734                 kfree(ifp);
 735         }
 736 }
 737
 738 void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked)
 739 {
 740         if (!ifp || WARN_ON(ifp->drvr->iflist[ifp->bsscfgidx] != ifp))
 741                 return;
 742         brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", ifp->bsscfgidx,
 743                   ifp->ifidx);
 744         brcmf_fws_del_interface(ifp);
 745         brcmf_del_if(ifp->drvr, ifp->bsscfgidx, rtnl_locked);
 746 }
 747
 748 #ifdef CONFIG_INET
 749 #define ARPOL_MAX_ENTRIES       8
 750 static int brcmf_inetaddr_changed(struct notifier_block *nb,
 751                                   unsigned long action, void *data)
 752 {
 753         struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
 754                                               inetaddr_notifier);
 755         struct in_ifaddr *ifa = data;
 756         struct net_device *ndev = ifa->ifa_dev->dev;
 757         struct brcmf_if *ifp;
 758         int idx, i, ret;
 759         u32 val;
 760         __be32 addr_table[ARPOL_MAX_ENTRIES] = {0};
 761
 762         /* Find out if the notification is meant for us */
 763         for (idx = 0; idx < BRCMF_MAX_IFS; idx++) {
 764                 ifp = drvr->iflist[idx];
 765                 if (ifp && ifp->ndev == ndev)
 766                         break;
 767                 if (idx == BRCMF_MAX_IFS - 1)
 768                         return NOTIFY_DONE;
 769         }
 770
 771         /* check if arp offload is supported */
 772         ret = brcmf_fil_iovar_int_get(ifp, "arpoe", &val);
 773         if (ret)
 774                 return NOTIFY_OK;
 775
 776         /* old version only support primary index */
 777         ret = brcmf_fil_iovar_int_get(ifp, "arp_version", &val);
 778         if (ret)
 779                 val = 1;
 780         if (val == 1)
 781                 ifp = drvr->iflist[0];
 782
 783         /* retrieve the table from firmware */
 784         ret = brcmf_fil_iovar_data_get(ifp, "arp_hostip", addr_table,
 785                                        sizeof(addr_table));
 786         if (ret) {
 787                 brcmf_err("fail to get arp ip table err:%d\n", ret);
 788                 return NOTIFY_OK;
 789         }
 790
 791         for (i = 0; i < ARPOL_MAX_ENTRIES; i++)
 792                 if (ifa->ifa_address == addr_table[i])
 793                         break;
 794
 795         switch (action) {
 796         case NETDEV_UP:
 797                 if (i == ARPOL_MAX_ENTRIES) {
 798                         brcmf_dbg(TRACE, "add %pI4 to arp table\n",
 799                                   &ifa->ifa_address);
 800                         /* set it directly */
 801                         ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
 802                                 &ifa->ifa_address, sizeof(ifa->ifa_address));
 803                         if (ret)
 804                                 brcmf_err("add arp ip err %d\n", ret);
 805                 }
 806                 break;
 807         case NETDEV_DOWN:
 808                 if (i < ARPOL_MAX_ENTRIES) {
 809                         addr_table[i] = 0;
 810                         brcmf_dbg(TRACE, "remove %pI4 from arp table\n",
 811                                   &ifa->ifa_address);
 812                         /* clear the table in firmware */
 813                         ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear",
 814                                                        NULL, 0);
 815                         if (ret) {
 816                                 brcmf_err("fail to clear arp ip table err:%d\n",
 817                                           ret);
 818                                 return NOTIFY_OK;
 819                         }
 820                         for (i = 0; i < ARPOL_MAX_ENTRIES; i++) {
 821                                 if (addr_table[i] == 0)
 822                                         continue;
 823                                 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
 824                                                                &addr_table[i],
 825                                                                sizeof(addr_table[i]));
 826                                 if (ret)
 827                                         brcmf_err("add arp ip err %d\n",
 828                                                   ret);
 829                         }
 830                 }
 831                 break;
 832         default:
 833                 break;
 834         }
 835
 836         return NOTIFY_OK;
 837 }
 838 #endif
 839
 840 #if IS_ENABLED(CONFIG_IPV6)
 841 static int brcmf_inet6addr_changed(struct notifier_block *nb,
 842                                    unsigned long action, void *data)
 843 {
 844         struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
 845                                               inet6addr_notifier);
 846         struct inet6_ifaddr *ifa = data;
 847         struct brcmf_if *ifp;
 848         int i;
 849         struct in6_addr *table;
 850
 851         /* Only handle primary interface */
 852         ifp = drvr->iflist[0];
 853         if (!ifp)
 854                 return NOTIFY_DONE;
 855         if (ifp->ndev != ifa->idev->dev)
 856                 return NOTIFY_DONE;
 857
 858         table = ifp->ipv6_addr_tbl;
 859         for (i = 0; i < NDOL_MAX_ENTRIES; i++)
 860                 if (ipv6_addr_equal(&ifa->addr, &table[i]))
 861                         break;
 862
 863         switch (action) {
 864         case NETDEV_UP:
 865                 if (i == NDOL_MAX_ENTRIES) {
 866                         if (ifp->ipv6addr_idx < NDOL_MAX_ENTRIES) {
 867                                 table[ifp->ipv6addr_idx++] = ifa->addr;
 868                         } else {
 869                                 for (i = 0; i < NDOL_MAX_ENTRIES - 1; i++)
 870                                         table[i] = table[i + 1];
 871                                 table[NDOL_MAX_ENTRIES - 1] = ifa->addr;
 872                         }
 873                 }
 874                 break;
 875         case NETDEV_DOWN:
 876                 if (i < NDOL_MAX_ENTRIES) {
 877                         for (; i < ifp->ipv6addr_idx - 1; i++)
 878                                 table[i] = table[i + 1];
 879                         memset(&table[i], 0, sizeof(table[i]));
 880                         ifp->ipv6addr_idx--;
 881                 }
 882                 break;
 883         default:
 884                 break;
 885         }
 886
 887         schedule_work(&ifp->ndoffload_work);
 888
 889         return NOTIFY_OK;
 890 }
 891 #endif
 892
 893 int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings)
 894 {
 895         struct brcmf_pub *drvr = NULL;
 896         int ret = 0;
 897         int i;
 898
 899         brcmf_dbg(TRACE, "Enter\n");
 900
 901         /* Allocate primary brcmf_info */
 902         drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC);
 903         if (!drvr)
 904                 return -ENOMEM;
 905
 906         for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
 907                 drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
 908
 909         mutex_init(&drvr->proto_block);
 910
 911         /* Link to bus module */
 912         drvr->hdrlen = 0;
 913         drvr->bus_if = dev_get_drvdata(dev);
 914         drvr->bus_if->drvr = drvr;
 915         drvr->settings = settings;
 916
 917         /* attach debug facilities */
 918         brcmf_debug_attach(drvr);
 919
 920         /* Attach and link in the protocol */
 921         ret = brcmf_proto_attach(drvr);
 922         if (ret != 0) {
 923                 brcmf_err("brcmf_prot_attach failed\n");
 924                 goto fail;
 925         }
 926
 927         /* attach firmware event handler */
 928         brcmf_fweh_attach(drvr);
 929
 930         return ret;
 931
 932 fail:
 933         brcmf_detach(dev);
 934
 935         return ret;
 936 }
 937
 938 static int brcmf_revinfo_read(struct seq_file *s, void *data)
 939 {
 940         struct brcmf_bus *bus_if = dev_get_drvdata(s->private);
 941         struct brcmf_rev_info *ri = &bus_if->drvr->revinfo;
 942         char drev[BRCMU_DOTREV_LEN];
 943         char brev[BRCMU_BOARDREV_LEN];
 944
 945         seq_printf(s, "vendorid: 0x%04x\n", ri->vendorid);
 946         seq_printf(s, "deviceid: 0x%04x\n", ri->deviceid);
 947         seq_printf(s, "radiorev: %s\n", brcmu_dotrev_str(ri->radiorev, drev));
 948         seq_printf(s, "chipnum: %u (%x)\n", ri->chipnum, ri->chipnum);
 949         seq_printf(s, "chiprev: %u\n", ri->chiprev);
 950         seq_printf(s, "chippkg: %u\n", ri->chippkg);
 951         seq_printf(s, "corerev: %u\n", ri->corerev);
 952         seq_printf(s, "boardid: 0x%04x\n", ri->boardid);
 953         seq_printf(s, "boardvendor: 0x%04x\n", ri->boardvendor);
 954         seq_printf(s, "boardrev: %s\n", brcmu_boardrev_str(ri->boardrev, brev));
 955         seq_printf(s, "driverrev: %s\n", brcmu_dotrev_str(ri->driverrev, drev));
 956         seq_printf(s, "ucoderev: %u\n", ri->ucoderev);
 957         seq_printf(s, "bus: %u\n", ri->bus);
 958         seq_printf(s, "phytype: %u\n", ri->phytype);
 959         seq_printf(s, "phyrev: %u\n", ri->phyrev);
 960         seq_printf(s, "anarev: %u\n", ri->anarev);
 961         seq_printf(s, "nvramrev: %08x\n", ri->nvramrev);
 962
 963         return 0;
 964 }
 965
 966 int brcmf_bus_start(struct device *dev)
 967 {
 968         int ret = -1;
 969         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 970         struct brcmf_pub *drvr = bus_if->drvr;
 971         struct brcmf_if *ifp;
 972         struct brcmf_if *p2p_ifp;
 973
 974         brcmf_dbg(TRACE, "\n");
 975
 976         /* add primary networking interface */
 977         ifp = brcmf_add_if(drvr, 0, 0, false, "wlan%d", NULL);
 978         if (IS_ERR(ifp))
 979                 return PTR_ERR(ifp);
 980
 981         p2p_ifp = NULL;
 982
 983         /* signal bus ready */
 984         brcmf_bus_change_state(bus_if, BRCMF_BUS_UP);
 985
 986         /* Bus is ready, do any initialization */
 987         ret = brcmf_c_preinit_dcmds(ifp);
 988         if (ret < 0)
 989                 goto fail;
 990
 991         brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
 992
 993         /* assure we have chipid before feature attach */
 994         if (!bus_if->chip) {
 995                 bus_if->chip = drvr->revinfo.chipnum;
 996                 bus_if->chiprev = drvr->revinfo.chiprev;
 997                 brcmf_dbg(INFO, "firmware revinfo: chip %x (%d) rev %d\n",
 998                           bus_if->chip, bus_if->chip, bus_if->chiprev);
 999         }
1000         brcmf_feat_attach(drvr);
1001
1002         ret = brcmf_fws_init(drvr);
1003         if (ret < 0)
1004                 goto fail;
1005
1006         brcmf_fws_add_interface(ifp);
1007
1008         drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev,
1009                                              drvr->settings->p2p_enable);
1010         if (drvr->config == NULL) {
1011                 ret = -ENOMEM;
1012                 goto fail;
1013         }
1014
1015         ret = brcmf_net_attach(ifp, false);
1016
1017         if ((!ret) && (drvr->settings->p2p_enable)) {
1018                 p2p_ifp = drvr->iflist[1];
1019                 if (p2p_ifp)
1020                         ret = brcmf_net_p2p_attach(p2p_ifp);
1021         }
1022
1023         if (ret)
1024                 goto fail;
1025
1026 #ifdef CONFIG_INET
1027         drvr->inetaddr_notifier.notifier_call = brcmf_inetaddr_changed;
1028         ret = register_inetaddr_notifier(&drvr->inetaddr_notifier);
1029         if (ret)
1030                 goto fail;
1031
1032 #if IS_ENABLED(CONFIG_IPV6)
1033         drvr->inet6addr_notifier.notifier_call = brcmf_inet6addr_changed;
1034         ret = register_inet6addr_notifier(&drvr->inet6addr_notifier);
1035         if (ret) {
1036                 unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
1037                 goto fail;
1038         }
1039 #endif
1040 #endif /* CONFIG_INET */
1041
1042         return 0;
1043
1044 fail:
1045         brcmf_err("failed: %d\n", ret);
1046         if (drvr->config) {
1047                 brcmf_cfg80211_detach(drvr->config);
1048                 drvr->config = NULL;
1049         }
1050         if (drvr->fws) {
1051                 brcmf_fws_del_interface(ifp);
1052                 brcmf_fws_deinit(drvr);
1053         }
1054         brcmf_net_detach(ifp->ndev, false);
1055         if (p2p_ifp)
1056                 brcmf_net_detach(p2p_ifp->ndev, false);
1057         drvr->iflist[0] = NULL;
1058         drvr->iflist[1] = NULL;
1059         if (drvr->settings->ignore_probe_fail)
1060                 ret = 0;
1061
1062         return ret;
1063 }
1064
1065 void brcmf_bus_add_txhdrlen(struct device *dev, uint len)
1066 {
1067         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1068         struct brcmf_pub *drvr = bus_if->drvr;
1069
1070         if (drvr) {
1071                 drvr->hdrlen += len;
1072         }
1073 }
1074
1075 static void brcmf_bus_detach(struct brcmf_pub *drvr)
1076 {
1077         brcmf_dbg(TRACE, "Enter\n");
1078
1079         if (drvr) {
1080                 /* Stop the bus module */
1081                 brcmf_bus_stop(drvr->bus_if);
1082         }
1083 }
1084
1085 void brcmf_dev_reset(struct device *dev)
1086 {
1087         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1088         struct brcmf_pub *drvr = bus_if->drvr;
1089
1090         if (drvr == NULL)
1091                 return;
1092
1093         if (drvr->iflist[0])
1094                 brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
1095 }
1096
1097 void brcmf_detach(struct device *dev)
1098 {
1099         s32 i;
1100         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1101         struct brcmf_pub *drvr = bus_if->drvr;
1102
1103         brcmf_dbg(TRACE, "Enter\n");
1104
1105         if (drvr == NULL)
1106                 return;
1107
1108 #ifdef CONFIG_INET
1109         unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
1110 #endif
1111
1112 #if IS_ENABLED(CONFIG_IPV6)
1113         unregister_inet6addr_notifier(&drvr->inet6addr_notifier);
1114 #endif
1115
1116         /* stop firmware event handling */
1117         brcmf_fweh_detach(drvr);
1118         if (drvr->config)
1119                 brcmf_p2p_detach(&drvr->config->p2p);
1120
1121         brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
1122
1123         /* make sure primary interface removed last */
1124         for (i = BRCMF_MAX_IFS-1; i > -1; i--)
1125                 brcmf_remove_interface(drvr->iflist[i], false);
1126
1127         brcmf_cfg80211_detach(drvr->config);
1128
1129         brcmf_fws_deinit(drvr);
1130
1131         brcmf_bus_detach(drvr);
1132
1133         brcmf_proto_detach(drvr);
1134
1135         brcmf_debug_detach(drvr);
1136         bus_if->drvr = NULL;
1137         kfree(drvr);
1138 }
1139
1140 s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len)
1141 {
1142         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1143         struct brcmf_if *ifp = bus_if->drvr->iflist[0];
1144
1145         return brcmf_fil_iovar_data_set(ifp, name, data, len);
1146 }
1147
1148 static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
1149 {
1150         return atomic_read(&ifp->pend_8021x_cnt);
1151 }
1152
1153 int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp)
1154 {
1155         int err;
1156
1157         err = wait_event_timeout(ifp->pend_8021x_wait,
1158                                  !brcmf_get_pend_8021x_cnt(ifp),
1159                                  MAX_WAIT_FOR_8021X_TX);
1160
1161         WARN_ON(!err);
1162
1163         return !err;
1164 }
1165
1166 void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state)
1167 {
1168         struct brcmf_pub *drvr = bus->drvr;
1169         struct net_device *ndev;
1170         int ifidx;
1171
1172         brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state);
1173         bus->state = state;
1174
1175         if (state == BRCMF_BUS_UP) {
1176                 for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
1177                         if ((drvr->iflist[ifidx]) &&
1178                             (drvr->iflist[ifidx]->ndev)) {
1179                                 ndev = drvr->iflist[ifidx]->ndev;
1180                                 if (netif_queue_stopped(ndev))
1181                                         netif_wake_queue(ndev);
1182                         }
1183                 }
1184         }
1185 }
1186
1187 static void brcmf_driver_register(struct work_struct *work)
1188 {
1189 #ifdef CONFIG_BRCMFMAC_SDIO
1190         brcmf_sdio_register();
1191 #endif
1192 #ifdef CONFIG_BRCMFMAC_USB
1193         brcmf_usb_register();
1194 #endif
1195 #ifdef CONFIG_BRCMFMAC_PCIE
1196         brcmf_pcie_register();
1197 #endif
1198 }
1199 static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register);
1200
1201 int __init brcmf_core_init(void)
1202 {
1203         if (!schedule_work(&brcmf_driver_work))
1204                 return -EBUSY;
1205
1206         return 0;
1207 }
1208
1209 void __exit brcmf_core_exit(void)
1210 {
1211         cancel_work_sync(&brcmf_driver_work);
1212
1213 #ifdef CONFIG_BRCMFMAC_SDIO
1214         brcmf_sdio_exit();
1215 #endif
1216 #ifdef CONFIG_BRCMFMAC_USB
1217         brcmf_usb_exit();
1218 #endif
1219 #ifdef CONFIG_BRCMFMAC_PCIE
1220         brcmf_pcie_exit();
1221 #endif
1222 }
1223