drivers/net/wireless/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 <net/cfg80211.h>
  21 #include <net/rtnetlink.h>
  22 #include <brcmu_utils.h>
  23 #include <brcmu_wifi.h>
  24
  25 #include "core.h"
  26 #include "bus.h"
  27 #include "debug.h"
  28 #include "fwil_types.h"
  29 #include "p2p.h"
  30 #include "cfg80211.h"
  31 #include "fwil.h"
  32 #include "fwsignal.h"
  33 #include "feature.h"
  34 #include "proto.h"
  35 #include "pcie.h"
  36 #include "common.h"
  37
  38 MODULE_AUTHOR("Broadcom Corporation");
  39 MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
  40 MODULE_LICENSE("Dual BSD/GPL");
  41
  42 #define MAX_WAIT_FOR_8021X_TX           50      /* msecs */
  43
  44 /* AMPDU rx reordering definitions */
  45 #define BRCMF_RXREORDER_FLOWID_OFFSET           0
  46 #define BRCMF_RXREORDER_MAXIDX_OFFSET           2
  47 #define BRCMF_RXREORDER_FLAGS_OFFSET            4
  48 #define BRCMF_RXREORDER_CURIDX_OFFSET           6
  49 #define BRCMF_RXREORDER_EXPIDX_OFFSET           8
  50
  51 #define BRCMF_RXREORDER_DEL_FLOW                0x01
  52 #define BRCMF_RXREORDER_FLUSH_ALL               0x02
  53 #define BRCMF_RXREORDER_CURIDX_VALID            0x04
  54 #define BRCMF_RXREORDER_EXPIDX_VALID            0x08
  55 #define BRCMF_RXREORDER_NEW_HOLE                0x10
  56
  57 #define BRCMF_BSSIDX_INVALID                    -1
  58
  59 /* Error bits */
  60 int brcmf_msg_level;
  61 module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR);
  62 MODULE_PARM_DESC(debug, "level of debug output");
  63
  64 /* P2P0 enable */
  65 static int brcmf_p2p_enable;
  66 module_param_named(p2pon, brcmf_p2p_enable, int, 0);
  67 MODULE_PARM_DESC(p2pon, "enable legacy p2p management functionality");
  68
  69 char *brcmf_ifname(struct brcmf_pub *drvr, int ifidx)
  70 {
  71         if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
  72                 brcmf_err("ifidx %d out of range\n", ifidx);
  73                 return "<if_bad>";
  74         }
  75
  76         if (drvr->iflist[ifidx] == NULL) {
  77                 brcmf_err("null i/f %d\n", ifidx);
  78                 return "<if_null>";
  79         }
  80
  81         if (drvr->iflist[ifidx]->ndev)
  82                 return drvr->iflist[ifidx]->ndev->name;
  83
  84         return "<if_none>";
  85 }
  86
  87 struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx)
  88 {
  89         struct brcmf_if *ifp;
  90         s32 bssidx;
  91
  92         if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
  93                 brcmf_err("ifidx %d out of range\n", ifidx);
  94                 return NULL;
  95         }
  96
  97         ifp = NULL;
  98         bssidx = drvr->if2bss[ifidx];
  99         if (bssidx >= 0)
 100                 ifp = drvr->iflist[bssidx];
 101
 102         return ifp;
 103 }
 104
 105 static void _brcmf_set_multicast_list(struct work_struct *work)
 106 {
 107         struct brcmf_if *ifp;
 108         struct net_device *ndev;
 109         struct netdev_hw_addr *ha;
 110         u32 cmd_value, cnt;
 111         __le32 cnt_le;
 112         char *buf, *bufp;
 113         u32 buflen;
 114         s32 err;
 115
 116         ifp = container_of(work, struct brcmf_if, multicast_work);
 117
 118         brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
 119
 120         ndev = ifp->ndev;
 121
 122         /* Determine initial value of allmulti flag */
 123         cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
 124
 125         /* Send down the multicast list first. */
 126         cnt = netdev_mc_count(ndev);
 127         buflen = sizeof(cnt) + (cnt * ETH_ALEN);
 128         buf = kmalloc(buflen, GFP_ATOMIC);
 129         if (!buf)
 130                 return;
 131         bufp = buf;
 132
 133         cnt_le = cpu_to_le32(cnt);
 134         memcpy(bufp, &cnt_le, sizeof(cnt_le));
 135         bufp += sizeof(cnt_le);
 136
 137         netdev_for_each_mc_addr(ha, ndev) {
 138                 if (!cnt)
 139                         break;
 140                 memcpy(bufp, ha->addr, ETH_ALEN);
 141                 bufp += ETH_ALEN;
 142                 cnt--;
 143         }
 144
 145         err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
 146         if (err < 0) {
 147                 brcmf_err("Setting mcast_list failed, %d\n", err);
 148                 cmd_value = cnt ? true : cmd_value;
 149         }
 150
 151         kfree(buf);
 152
 153         /*
 154          * Now send the allmulti setting.  This is based on the setting in the
 155          * net_device flags, but might be modified above to be turned on if we
 156          * were trying to set some addresses and dongle rejected it...
 157          */
 158         err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
 159         if (err < 0)
 160                 brcmf_err("Setting allmulti failed, %d\n", err);
 161
 162         /*Finally, pick up the PROMISC flag */
 163         cmd_value = (ndev->flags & IFF_PROMISC) ? true : false;
 164         err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value);
 165         if (err < 0)
 166                 brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
 167                           err);
 168 }
 169
 170 static void
 171 _brcmf_set_mac_address(struct work_struct *work)
 172 {
 173         struct brcmf_if *ifp;
 174         s32 err;
 175
 176         ifp = container_of(work, struct brcmf_if, setmacaddr_work);
 177
 178         brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
 179
 180         err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", ifp->mac_addr,
 181                                        ETH_ALEN);
 182         if (err < 0) {
 183                 brcmf_err("Setting cur_etheraddr failed, %d\n", err);
 184         } else {
 185                 brcmf_dbg(TRACE, "MAC address updated to %pM\n",
 186                           ifp->mac_addr);
 187                 memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
 188         }
 189 }
 190
 191 static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
 192 {
 193         struct brcmf_if *ifp = netdev_priv(ndev);
 194         struct sockaddr *sa = (struct sockaddr *)addr;
 195
 196         memcpy(&ifp->mac_addr, sa->sa_data, ETH_ALEN);
 197         schedule_work(&ifp->setmacaddr_work);
 198         return 0;
 199 }
 200
 201 static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
 202 {
 203         struct brcmf_if *ifp = netdev_priv(ndev);
 204
 205         schedule_work(&ifp->multicast_work);
 206 }
 207
 208 static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 209                                            struct net_device *ndev)
 210 {
 211         int ret;
 212         struct brcmf_if *ifp = netdev_priv(ndev);
 213         struct brcmf_pub *drvr = ifp->drvr;
 214         struct ethhdr *eh;
 215
 216         brcmf_dbg(DATA, "Enter, idx=%d\n", ifp->bssidx);
 217
 218         /* Can the device send data? */
 219         if (drvr->bus_if->state != BRCMF_BUS_UP) {
 220                 brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state);
 221                 netif_stop_queue(ndev);
 222                 dev_kfree_skb(skb);
 223                 ret = -ENODEV;
 224                 goto done;
 225         }
 226
 227         if (!drvr->iflist[ifp->bssidx]) {
 228                 brcmf_err("bad ifidx %d\n", ifp->bssidx);
 229                 netif_stop_queue(ndev);
 230                 dev_kfree_skb(skb);
 231                 ret = -ENODEV;
 232                 goto done;
 233         }
 234
 235         /* Make sure there's enough writable headroom*/
 236         ret = skb_cow_head(skb, drvr->hdrlen);
 237         if (ret < 0) {
 238                 brcmf_err("%s: skb_cow_head failed\n",
 239                           brcmf_ifname(drvr, ifp->bssidx));
 240                 dev_kfree_skb(skb);
 241                 goto done;
 242         }
 243
 244         /* validate length for ether packet */
 245         if (skb->len < sizeof(*eh)) {
 246                 ret = -EINVAL;
 247                 dev_kfree_skb(skb);
 248                 goto done;
 249         }
 250
 251         eh = (struct ethhdr *)(skb->data);
 252
 253         if (eh->h_proto == htons(ETH_P_PAE))
 254                 atomic_inc(&ifp->pend_8021x_cnt);
 255
 256         ret = brcmf_fws_process_skb(ifp, skb);
 257
 258 done:
 259         if (ret) {
 260                 ifp->stats.tx_dropped++;
 261         } else {
 262                 ifp->stats.tx_packets++;
 263                 ifp->stats.tx_bytes += skb->len;
 264         }
 265
 266         /* Return ok: we always eat the packet */
 267         return NETDEV_TX_OK;
 268 }
 269
 270 void brcmf_txflowblock_if(struct brcmf_if *ifp,
 271                           enum brcmf_netif_stop_reason reason, bool state)
 272 {
 273         unsigned long flags;
 274
 275         if (!ifp || !ifp->ndev)
 276                 return;
 277
 278         brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n",
 279                   ifp->bssidx, ifp->netif_stop, reason, state);
 280
 281         spin_lock_irqsave(&ifp->netif_stop_lock, flags);
 282         if (state) {
 283                 if (!ifp->netif_stop)
 284                         netif_stop_queue(ifp->ndev);
 285                 ifp->netif_stop |= reason;
 286         } else {
 287                 ifp->netif_stop &= ~reason;
 288                 if (!ifp->netif_stop)
 289                         netif_wake_queue(ifp->ndev);
 290         }
 291         spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
 292 }
 293
 294 void brcmf_txflowblock(struct device *dev, bool state)
 295 {
 296         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 297         struct brcmf_pub *drvr = bus_if->drvr;
 298
 299         brcmf_dbg(TRACE, "Enter\n");
 300
 301         brcmf_fws_bus_blocked(drvr, state);
 302 }
 303
 304 void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
 305 {
 306         if (skb->pkt_type == PACKET_MULTICAST)
 307                 ifp->stats.multicast++;
 308
 309         if (!(ifp->ndev->flags & IFF_UP)) {
 310                 brcmu_pkt_buf_free_skb(skb);
 311                 return;
 312         }
 313
 314         ifp->stats.rx_bytes += skb->len;
 315         ifp->stats.rx_packets++;
 316
 317         brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol));
 318         if (in_interrupt())
 319                 netif_rx(skb);
 320         else
 321                 /* If the receive is not processed inside an ISR,
 322                  * the softirqd must be woken explicitly to service
 323                  * the NET_RX_SOFTIRQ.  This is handled by netif_rx_ni().
 324                  */
 325                 netif_rx_ni(skb);
 326 }
 327
 328 static void brcmf_rxreorder_get_skb_list(struct brcmf_ampdu_rx_reorder *rfi,
 329                                          u8 start, u8 end,
 330                                          struct sk_buff_head *skb_list)
 331 {
 332         /* initialize return list */
 333         __skb_queue_head_init(skb_list);
 334
 335         if (rfi->pend_pkts == 0) {
 336                 brcmf_dbg(INFO, "no packets in reorder queue\n");
 337                 return;
 338         }
 339
 340         do {
 341                 if (rfi->pktslots[start]) {
 342                         __skb_queue_tail(skb_list, rfi->pktslots[start]);
 343                         rfi->pktslots[start] = NULL;
 344                 }
 345                 start++;
 346                 if (start > rfi->max_idx)
 347                         start = 0;
 348         } while (start != end);
 349         rfi->pend_pkts -= skb_queue_len(skb_list);
 350 }
 351
 352 static void brcmf_rxreorder_process_info(struct brcmf_if *ifp, u8 *reorder_data,
 353                                          struct sk_buff *pkt)
 354 {
 355         u8 flow_id, max_idx, cur_idx, exp_idx, end_idx;
 356         struct brcmf_ampdu_rx_reorder *rfi;
 357         struct sk_buff_head reorder_list;
 358         struct sk_buff *pnext;
 359         u8 flags;
 360         u32 buf_size;
 361
 362         flow_id = reorder_data[BRCMF_RXREORDER_FLOWID_OFFSET];
 363         flags = reorder_data[BRCMF_RXREORDER_FLAGS_OFFSET];
 364
 365         /* validate flags and flow id */
 366         if (flags == 0xFF) {
 367                 brcmf_err("invalid flags...so ignore this packet\n");
 368                 brcmf_netif_rx(ifp, pkt);
 369                 return;
 370         }
 371
 372         rfi = ifp->drvr->reorder_flows[flow_id];
 373         if (flags & BRCMF_RXREORDER_DEL_FLOW) {
 374                 brcmf_dbg(INFO, "flow-%d: delete\n",
 375                           flow_id);
 376
 377                 if (rfi == NULL) {
 378                         brcmf_dbg(INFO, "received flags to cleanup, but no flow (%d) yet\n",
 379                                   flow_id);
 380                         brcmf_netif_rx(ifp, pkt);
 381                         return;
 382                 }
 383
 384                 brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, rfi->exp_idx,
 385                                              &reorder_list);
 386                 /* add the last packet */
 387                 __skb_queue_tail(&reorder_list, pkt);
 388                 kfree(rfi);
 389                 ifp->drvr->reorder_flows[flow_id] = NULL;
 390                 goto netif_rx;
 391         }
 392         /* from here on we need a flow reorder instance */
 393         if (rfi == NULL) {
 394                 buf_size = sizeof(*rfi);
 395                 max_idx = reorder_data[BRCMF_RXREORDER_MAXIDX_OFFSET];
 396
 397                 buf_size += (max_idx + 1) * sizeof(pkt);
 398
 399                 /* allocate space for flow reorder info */
 400                 brcmf_dbg(INFO, "flow-%d: start, maxidx %d\n",
 401                           flow_id, max_idx);
 402                 rfi = kzalloc(buf_size, GFP_ATOMIC);
 403                 if (rfi == NULL) {
 404                         brcmf_err("failed to alloc buffer\n");
 405                         brcmf_netif_rx(ifp, pkt);
 406                         return;
 407                 }
 408
 409                 ifp->drvr->reorder_flows[flow_id] = rfi;
 410                 rfi->pktslots = (struct sk_buff **)(rfi+1);
 411                 rfi->max_idx = max_idx;
 412         }
 413         if (flags & BRCMF_RXREORDER_NEW_HOLE)  {
 414                 if (rfi->pend_pkts) {
 415                         brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx,
 416                                                      rfi->exp_idx,
 417                                                      &reorder_list);
 418                         WARN_ON(rfi->pend_pkts);
 419                 } else {
 420                         __skb_queue_head_init(&reorder_list);
 421                 }
 422                 rfi->cur_idx = reorder_data[BRCMF_RXREORDER_CURIDX_OFFSET];
 423                 rfi->exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET];
 424                 rfi->max_idx = reorder_data[BRCMF_RXREORDER_MAXIDX_OFFSET];
 425                 rfi->pktslots[rfi->cur_idx] = pkt;
 426                 rfi->pend_pkts++;
 427                 brcmf_dbg(DATA, "flow-%d: new hole %d (%d), pending %d\n",
 428                           flow_id, rfi->cur_idx, rfi->exp_idx, rfi->pend_pkts);
 429         } else if (flags & BRCMF_RXREORDER_CURIDX_VALID) {
 430                 cur_idx = reorder_data[BRCMF_RXREORDER_CURIDX_OFFSET];
 431                 exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET];
 432
 433                 if ((exp_idx == rfi->exp_idx) && (cur_idx != rfi->exp_idx)) {
 434                         /* still in the current hole */
 435                         /* enqueue the current on the buffer chain */
 436                         if (rfi->pktslots[cur_idx] != NULL) {
 437                                 brcmf_dbg(INFO, "HOLE: ERROR buffer pending..free it\n");
 438                                 brcmu_pkt_buf_free_skb(rfi->pktslots[cur_idx]);
 439                                 rfi->pktslots[cur_idx] = NULL;
 440                         }
 441                         rfi->pktslots[cur_idx] = pkt;
 442                         rfi->pend_pkts++;
 443                         rfi->cur_idx = cur_idx;
 444                         brcmf_dbg(DATA, "flow-%d: store pkt %d (%d), pending %d\n",
 445                                   flow_id, cur_idx, exp_idx, rfi->pend_pkts);
 446
 447                         /* can return now as there is no reorder
 448                          * list to process.
 449                          */
 450                         return;
 451                 }
 452                 if (rfi->exp_idx == cur_idx) {
 453                         if (rfi->pktslots[cur_idx] != NULL) {
 454                                 brcmf_dbg(INFO, "error buffer pending..free it\n");
 455                                 brcmu_pkt_buf_free_skb(rfi->pktslots[cur_idx]);
 456                                 rfi->pktslots[cur_idx] = NULL;
 457                         }
 458                         rfi->pktslots[cur_idx] = pkt;
 459                         rfi->pend_pkts++;
 460
 461                         /* got the expected one. flush from current to expected
 462                          * and update expected
 463                          */
 464                         brcmf_dbg(DATA, "flow-%d: expected %d (%d), pending %d\n",
 465                                   flow_id, cur_idx, exp_idx, rfi->pend_pkts);
 466
 467                         rfi->cur_idx = cur_idx;
 468                         rfi->exp_idx = exp_idx;
 469
 470                         brcmf_rxreorder_get_skb_list(rfi, cur_idx, exp_idx,
 471                                                      &reorder_list);
 472                         brcmf_dbg(DATA, "flow-%d: freeing buffers %d, pending %d\n",
 473                                   flow_id, skb_queue_len(&reorder_list),
 474                                   rfi->pend_pkts);
 475                 } else {
 476                         u8 end_idx;
 477
 478                         brcmf_dbg(DATA, "flow-%d (0x%x): both moved, old %d/%d, new %d/%d\n",
 479                                   flow_id, flags, rfi->cur_idx, rfi->exp_idx,
 480                                   cur_idx, exp_idx);
 481                         if (flags & BRCMF_RXREORDER_FLUSH_ALL)
 482                                 end_idx = rfi->exp_idx;
 483                         else
 484                                 end_idx = exp_idx;
 485
 486                         /* flush pkts first */
 487                         brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, end_idx,
 488                                                      &reorder_list);
 489
 490                         if (exp_idx == ((cur_idx + 1) % (rfi->max_idx + 1))) {
 491                                 __skb_queue_tail(&reorder_list, pkt);
 492                         } else {
 493                                 rfi->pktslots[cur_idx] = pkt;
 494                                 rfi->pend_pkts++;
 495                         }
 496                         rfi->exp_idx = exp_idx;
 497                         rfi->cur_idx = cur_idx;
 498                 }
 499         } else {
 500                 /* explicity window move updating the expected index */
 501                 exp_idx = reorder_data[BRCMF_RXREORDER_EXPIDX_OFFSET];
 502
 503                 brcmf_dbg(DATA, "flow-%d (0x%x): change expected: %d -> %d\n",
 504                           flow_id, flags, rfi->exp_idx, exp_idx);
 505                 if (flags & BRCMF_RXREORDER_FLUSH_ALL)
 506                         end_idx =  rfi->exp_idx;
 507                 else
 508                         end_idx =  exp_idx;
 509
 510                 brcmf_rxreorder_get_skb_list(rfi, rfi->exp_idx, end_idx,
 511                                              &reorder_list);
 512                 __skb_queue_tail(&reorder_list, pkt);
 513                 /* set the new expected idx */
 514                 rfi->exp_idx = exp_idx;
 515         }
 516 netif_rx:
 517         skb_queue_walk_safe(&reorder_list, pkt, pnext) {
 518                 __skb_unlink(pkt, &reorder_list);
 519                 brcmf_netif_rx(ifp, pkt);
 520         }
 521 }
 522
 523 void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event)
 524 {
 525         struct brcmf_if *ifp;
 526         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 527         struct brcmf_pub *drvr = bus_if->drvr;
 528         struct brcmf_skb_reorder_data *rd;
 529         int ret;
 530
 531         brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
 532
 533         /* process and remove protocol-specific header */
 534         ret = brcmf_proto_hdrpull(drvr, true, skb, &ifp);
 535
 536         if (ret || !ifp || !ifp->ndev) {
 537                 if (ret != -ENODATA && ifp)
 538                         ifp->stats.rx_errors++;
 539                 brcmu_pkt_buf_free_skb(skb);
 540                 return;
 541         }
 542
 543         skb->protocol = eth_type_trans(skb, ifp->ndev);
 544
 545         rd = (struct brcmf_skb_reorder_data *)skb->cb;
 546         if (rd->reorder) {
 547                 brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
 548         } else {
 549                 /* Process special event packets */
 550                 if (handle_event)
 551                         brcmf_fweh_process_skb(ifp->drvr, skb);
 552
 553                 brcmf_netif_rx(ifp, skb);
 554         }
 555 }
 556
 557 void brcmf_rx_event(struct device *dev, struct sk_buff *skb)
 558 {
 559         struct brcmf_if *ifp;
 560         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 561         struct brcmf_pub *drvr = bus_if->drvr;
 562         int ret;
 563
 564         brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
 565
 566         /* process and remove protocol-specific header */
 567         ret = brcmf_proto_hdrpull(drvr, true, skb, &ifp);
 568
 569         if (ret || !ifp || !ifp->ndev) {
 570                 if (ret != -ENODATA && ifp)
 571                         ifp->stats.rx_errors++;
 572                 brcmu_pkt_buf_free_skb(skb);
 573                 return;
 574         }
 575
 576         skb->protocol = eth_type_trans(skb, ifp->ndev);
 577
 578         brcmf_fweh_process_skb(ifp->drvr, skb);
 579         brcmu_pkt_buf_free_skb(skb);
 580 }
 581
 582 void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
 583 {
 584         struct ethhdr *eh;
 585         u16 type;
 586
 587         eh = (struct ethhdr *)(txp->data);
 588         type = ntohs(eh->h_proto);
 589
 590         if (type == ETH_P_PAE) {
 591                 atomic_dec(&ifp->pend_8021x_cnt);
 592                 if (waitqueue_active(&ifp->pend_8021x_wait))
 593                         wake_up(&ifp->pend_8021x_wait);
 594         }
 595
 596         if (!success)
 597                 ifp->stats.tx_errors++;
 598
 599         brcmu_pkt_buf_free_skb(txp);
 600 }
 601
 602 void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
 603 {
 604         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 605         struct brcmf_pub *drvr = bus_if->drvr;
 606         struct brcmf_if *ifp;
 607
 608         /* await txstatus signal for firmware if active */
 609         if (brcmf_fws_fc_active(drvr->fws)) {
 610                 if (!success)
 611                         brcmf_fws_bustxfail(drvr->fws, txp);
 612         } else {
 613                 if (brcmf_proto_hdrpull(drvr, false, txp, &ifp))
 614                         brcmu_pkt_buf_free_skb(txp);
 615                 else
 616                         brcmf_txfinalize(ifp, txp, success);
 617         }
 618 }
 619
 620 static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
 621 {
 622         struct brcmf_if *ifp = netdev_priv(ndev);
 623
 624         brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
 625
 626         return &ifp->stats;
 627 }
 628
 629 static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
 630                                     struct ethtool_drvinfo *info)
 631 {
 632         struct brcmf_if *ifp = netdev_priv(ndev);
 633         struct brcmf_pub *drvr = ifp->drvr;
 634         char drev[BRCMU_DOTREV_LEN] = "n/a";
 635
 636         if (drvr->revinfo.result == 0)
 637                 brcmu_dotrev_str(drvr->revinfo.driverrev, drev);
 638         strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
 639         strlcpy(info->version, drev, sizeof(info->version));
 640         strlcpy(info->fw_version, drvr->fwver, sizeof(info->fw_version));
 641         strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
 642                 sizeof(info->bus_info));
 643 }
 644
 645 static const struct ethtool_ops brcmf_ethtool_ops = {
 646         .get_drvinfo = brcmf_ethtool_get_drvinfo,
 647 };
 648
 649 static int brcmf_netdev_stop(struct net_device *ndev)
 650 {
 651         struct brcmf_if *ifp = netdev_priv(ndev);
 652
 653         brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
 654
 655         brcmf_cfg80211_down(ndev);
 656
 657         brcmf_net_setcarrier(ifp, false);
 658
 659         return 0;
 660 }
 661
 662 static int brcmf_netdev_open(struct net_device *ndev)
 663 {
 664         struct brcmf_if *ifp = netdev_priv(ndev);
 665         struct brcmf_pub *drvr = ifp->drvr;
 666         struct brcmf_bus *bus_if = drvr->bus_if;
 667         u32 toe_ol;
 668
 669         brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
 670
 671         /* If bus is not ready, can't continue */
 672         if (bus_if->state != BRCMF_BUS_UP) {
 673                 brcmf_err("failed bus is not ready\n");
 674                 return -EAGAIN;
 675         }
 676
 677         atomic_set(&ifp->pend_8021x_cnt, 0);
 678
 679         /* Get current TOE mode from dongle */
 680         if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
 681             && (toe_ol & TOE_TX_CSUM_OL) != 0)
 682                 ndev->features |= NETIF_F_IP_CSUM;
 683         else
 684                 ndev->features &= ~NETIF_F_IP_CSUM;
 685
 686         if (brcmf_cfg80211_up(ndev)) {
 687                 brcmf_err("failed to bring up cfg80211\n");
 688                 return -EIO;
 689         }
 690
 691         /* Clear, carrier, set when connected or AP mode. */
 692         netif_carrier_off(ndev);
 693         return 0;
 694 }
 695
 696 static const struct net_device_ops brcmf_netdev_ops_pri = {
 697         .ndo_open = brcmf_netdev_open,
 698         .ndo_stop = brcmf_netdev_stop,
 699         .ndo_get_stats = brcmf_netdev_get_stats,
 700         .ndo_start_xmit = brcmf_netdev_start_xmit,
 701         .ndo_set_mac_address = brcmf_netdev_set_mac_address,
 702         .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
 703 };
 704
 705 int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
 706 {
 707         struct brcmf_pub *drvr = ifp->drvr;
 708         struct net_device *ndev;
 709         s32 err;
 710
 711         brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
 712                   ifp->mac_addr);
 713         ndev = ifp->ndev;
 714
 715         /* set appropriate operations */
 716         ndev->netdev_ops = &brcmf_netdev_ops_pri;
 717
 718         ndev->hard_header_len += drvr->hdrlen;
 719         ndev->ethtool_ops = &brcmf_ethtool_ops;
 720
 721         drvr->rxsz = ndev->mtu + ndev->hard_header_len +
 722                               drvr->hdrlen;
 723
 724         /* set the mac address */
 725         memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
 726
 727         INIT_WORK(&ifp->setmacaddr_work, _brcmf_set_mac_address);
 728         INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
 729
 730         if (rtnl_locked)
 731                 err = register_netdevice(ndev);
 732         else
 733                 err = register_netdev(ndev);
 734         if (err != 0) {
 735                 brcmf_err("couldn't register the net device\n");
 736                 goto fail;
 737         }
 738
 739         brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
 740         return 0;
 741
 742 fail:
 743         drvr->iflist[ifp->bssidx] = NULL;
 744         ndev->netdev_ops = NULL;
 745         free_netdev(ndev);
 746         return -EBADE;
 747 }
 748
 749 static void brcmf_net_detach(struct net_device *ndev)
 750 {
 751         if (ndev->reg_state == NETREG_REGISTERED)
 752                 unregister_netdev(ndev);
 753         else
 754                 brcmf_cfg80211_free_netdev(ndev);
 755 }
 756
 757 void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on)
 758 {
 759         struct net_device *ndev;
 760
 761         brcmf_dbg(TRACE, "Enter, idx=%d carrier=%d\n", ifp->bssidx, on);
 762
 763         ndev = ifp->ndev;
 764         brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_DISCONNECTED, !on);
 765         if (on) {
 766                 if (!netif_carrier_ok(ndev))
 767                         netif_carrier_on(ndev);
 768
 769         } else {
 770                 if (netif_carrier_ok(ndev))
 771                         netif_carrier_off(ndev);
 772         }
 773 }
 774
 775 static int brcmf_net_p2p_open(struct net_device *ndev)
 776 {
 777         brcmf_dbg(TRACE, "Enter\n");
 778
 779         return brcmf_cfg80211_up(ndev);
 780 }
 781
 782 static int brcmf_net_p2p_stop(struct net_device *ndev)
 783 {
 784         brcmf_dbg(TRACE, "Enter\n");
 785
 786         return brcmf_cfg80211_down(ndev);
 787 }
 788
 789 static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
 790                                             struct net_device *ndev)
 791 {
 792         if (skb)
 793                 dev_kfree_skb_any(skb);
 794
 795         return NETDEV_TX_OK;
 796 }
 797
 798 static const struct net_device_ops brcmf_netdev_ops_p2p = {
 799         .ndo_open = brcmf_net_p2p_open,
 800         .ndo_stop = brcmf_net_p2p_stop,
 801         .ndo_start_xmit = brcmf_net_p2p_start_xmit
 802 };
 803
 804 static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
 805 {
 806         struct net_device *ndev;
 807
 808         brcmf_dbg(TRACE, "Enter, idx=%d mac=%pM\n", ifp->bssidx,
 809                   ifp->mac_addr);
 810         ndev = ifp->ndev;
 811
 812         ndev->netdev_ops = &brcmf_netdev_ops_p2p;
 813
 814         /* set the mac address */
 815         memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
 816
 817         if (register_netdev(ndev) != 0) {
 818                 brcmf_err("couldn't register the p2p net device\n");
 819                 goto fail;
 820         }
 821
 822         brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
 823
 824         return 0;
 825
 826 fail:
 827         ifp->drvr->iflist[ifp->bssidx] = NULL;
 828         ndev->netdev_ops = NULL;
 829         free_netdev(ndev);
 830         return -EBADE;
 831 }
 832
 833 struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
 834                               bool is_p2pdev, char *name, u8 *mac_addr)
 835 {
 836         struct brcmf_if *ifp;
 837         struct net_device *ndev;
 838
 839         brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifidx);
 840
 841         ifp = drvr->iflist[bssidx];
 842         /*
 843          * Delete the existing interface before overwriting it
 844          * in case we missed the BRCMF_E_IF_DEL event.
 845          */
 846         if (ifp) {
 847                 brcmf_err("ERROR: netdev:%s already exists\n",
 848                           ifp->ndev->name);
 849                 if (ifidx) {
 850                         netif_stop_queue(ifp->ndev);
 851                         brcmf_net_detach(ifp->ndev);
 852                         drvr->iflist[bssidx] = NULL;
 853                 } else {
 854                         brcmf_err("ignore IF event\n");
 855                         return ERR_PTR(-EINVAL);
 856                 }
 857         }
 858
 859         if (!brcmf_p2p_enable && is_p2pdev) {
 860                 /* this is P2P_DEVICE interface */
 861                 brcmf_dbg(INFO, "allocate non-netdev interface\n");
 862                 ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
 863                 if (!ifp)
 864                         return ERR_PTR(-ENOMEM);
 865         } else {
 866                 brcmf_dbg(INFO, "allocate netdev interface\n");
 867                 /* Allocate netdev, including space for private structure */
 868                 ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name,
 869                                     NET_NAME_UNKNOWN, ether_setup);
 870                 if (!ndev)
 871                         return ERR_PTR(-ENOMEM);
 872
 873                 ndev->destructor = brcmf_cfg80211_free_netdev;
 874                 ifp = netdev_priv(ndev);
 875                 ifp->ndev = ndev;
 876                 /* store mapping ifidx to bssidx */
 877                 if (drvr->if2bss[ifidx] == BRCMF_BSSIDX_INVALID)
 878                         drvr->if2bss[ifidx] = bssidx;
 879         }
 880
 881         ifp->drvr = drvr;
 882         drvr->iflist[bssidx] = ifp;
 883         ifp->ifidx = ifidx;
 884         ifp->bssidx = bssidx;
 885
 886         init_waitqueue_head(&ifp->pend_8021x_wait);
 887         spin_lock_init(&ifp->netif_stop_lock);
 888
 889         if (mac_addr != NULL)
 890                 memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
 891
 892         brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
 893                   current->pid, name, ifp->mac_addr);
 894
 895         return ifp;
 896 }
 897
 898 static void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
 899 {
 900         struct brcmf_if *ifp;
 901
 902         ifp = drvr->iflist[bssidx];
 903         drvr->iflist[bssidx] = NULL;
 904         if (!ifp) {
 905                 brcmf_err("Null interface, idx=%d\n", bssidx);
 906                 return;
 907         }
 908         brcmf_dbg(TRACE, "Enter, idx=%d, ifidx=%d\n", bssidx, ifp->ifidx);
 909         if (drvr->if2bss[ifp->ifidx] == bssidx)
 910                 drvr->if2bss[ifp->ifidx] = BRCMF_BSSIDX_INVALID;
 911         if (ifp->ndev) {
 912                 if (bssidx == 0) {
 913                         if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
 914                                 rtnl_lock();
 915                                 brcmf_netdev_stop(ifp->ndev);
 916                                 rtnl_unlock();
 917                         }
 918                 } else {
 919                         netif_stop_queue(ifp->ndev);
 920                 }
 921
 922                 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
 923                         cancel_work_sync(&ifp->setmacaddr_work);
 924                         cancel_work_sync(&ifp->multicast_work);
 925                 }
 926                 brcmf_net_detach(ifp->ndev);
 927         } else {
 928                 /* Only p2p device interfaces which get dynamically created
 929                  * end up here. In this case the p2p module should be informed
 930                  * about the removal of the interface within the firmware. If
 931                  * not then p2p commands towards the firmware will cause some
 932                  * serious troublesome side effects. The p2p module will clean
 933                  * up the ifp if needed.
 934                  */
 935                 brcmf_p2p_ifp_removed(ifp);
 936                 kfree(ifp);
 937         }
 938 }
 939
 940 void brcmf_remove_interface(struct brcmf_if *ifp)
 941 {
 942         if (!ifp || WARN_ON(ifp->drvr->iflist[ifp->bssidx] != ifp))
 943                 return;
 944         brcmf_dbg(TRACE, "Enter, bssidx=%d, ifidx=%d\n", ifp->bssidx,
 945                   ifp->ifidx);
 946         brcmf_fws_del_interface(ifp);
 947         brcmf_del_if(ifp->drvr, ifp->bssidx);
 948 }
 949
 950 int brcmf_get_next_free_bsscfgidx(struct brcmf_pub *drvr)
 951 {
 952         int ifidx;
 953         int bsscfgidx;
 954         bool available;
 955         int highest;
 956
 957         available = false;
 958         bsscfgidx = 2;
 959         highest = 2;
 960         for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
 961                 if (drvr->iflist[ifidx]) {
 962                         if (drvr->iflist[ifidx]->bssidx == bsscfgidx)
 963                                 bsscfgidx = highest + 1;
 964                         else if (drvr->iflist[ifidx]->bssidx > highest)
 965                                 highest = drvr->iflist[ifidx]->bssidx;
 966                 } else {
 967                         available = true;
 968                 }
 969         }
 970
 971         return available ? bsscfgidx : -ENOMEM;
 972 }
 973
 974 int brcmf_attach(struct device *dev)
 975 {
 976         struct brcmf_pub *drvr = NULL;
 977         int ret = 0;
 978         int i;
 979
 980         brcmf_dbg(TRACE, "Enter\n");
 981
 982         /* Allocate primary brcmf_info */
 983         drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC);
 984         if (!drvr)
 985                 return -ENOMEM;
 986
 987         for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
 988                 drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
 989
 990         mutex_init(&drvr->proto_block);
 991
 992         /* Link to bus module */
 993         drvr->hdrlen = 0;
 994         drvr->bus_if = dev_get_drvdata(dev);
 995         drvr->bus_if->drvr = drvr;
 996
 997         /* attach debug facilities */
 998         brcmf_debug_attach(drvr);
 999
1000         /* Attach and link in the protocol */
1001         ret = brcmf_proto_attach(drvr);
1002         if (ret != 0) {
1003                 brcmf_err("brcmf_prot_attach failed\n");
1004                 goto fail;
1005         }
1006
1007         /* attach firmware event handler */
1008         brcmf_fweh_attach(drvr);
1009
1010         return ret;
1011
1012 fail:
1013         brcmf_detach(dev);
1014
1015         return ret;
1016 }
1017
1018 static int brcmf_revinfo_read(struct seq_file *s, void *data)
1019 {
1020         struct brcmf_bus *bus_if = dev_get_drvdata(s->private);
1021         struct brcmf_rev_info *ri = &bus_if->drvr->revinfo;
1022         char drev[BRCMU_DOTREV_LEN];
1023         char brev[BRCMU_BOARDREV_LEN];
1024
1025         seq_printf(s, "vendorid: 0x%04x\n", ri->vendorid);
1026         seq_printf(s, "deviceid: 0x%04x\n", ri->deviceid);
1027         seq_printf(s, "radiorev: %s\n", brcmu_dotrev_str(ri->radiorev, drev));
1028         seq_printf(s, "chipnum: %u (%x)\n", ri->chipnum, ri->chipnum);
1029         seq_printf(s, "chiprev: %u\n", ri->chiprev);
1030         seq_printf(s, "chippkg: %u\n", ri->chippkg);
1031         seq_printf(s, "corerev: %u\n", ri->corerev);
1032         seq_printf(s, "boardid: 0x%04x\n", ri->boardid);
1033         seq_printf(s, "boardvendor: 0x%04x\n", ri->boardvendor);
1034         seq_printf(s, "boardrev: %s\n", brcmu_boardrev_str(ri->boardrev, brev));
1035         seq_printf(s, "driverrev: %s\n", brcmu_dotrev_str(ri->driverrev, drev));
1036         seq_printf(s, "ucoderev: %u\n", ri->ucoderev);
1037         seq_printf(s, "bus: %u\n", ri->bus);
1038         seq_printf(s, "phytype: %u\n", ri->phytype);
1039         seq_printf(s, "phyrev: %u\n", ri->phyrev);
1040         seq_printf(s, "anarev: %u\n", ri->anarev);
1041         seq_printf(s, "nvramrev: %08x\n", ri->nvramrev);
1042
1043         return 0;
1044 }
1045
1046 int brcmf_bus_start(struct device *dev)
1047 {
1048         int ret = -1;
1049         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1050         struct brcmf_pub *drvr = bus_if->drvr;
1051         struct brcmf_if *ifp;
1052         struct brcmf_if *p2p_ifp;
1053
1054         brcmf_dbg(TRACE, "\n");
1055
1056         /* add primary networking interface */
1057         ifp = brcmf_add_if(drvr, 0, 0, false, "wlan%d", NULL);
1058         if (IS_ERR(ifp))
1059                 return PTR_ERR(ifp);
1060
1061         p2p_ifp = NULL;
1062
1063         /* signal bus ready */
1064         brcmf_bus_change_state(bus_if, BRCMF_BUS_UP);
1065
1066         /* Bus is ready, do any initialization */
1067         ret = brcmf_c_preinit_dcmds(ifp);
1068         if (ret < 0)
1069                 goto fail;
1070
1071         brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
1072
1073         /* assure we have chipid before feature attach */
1074         if (!bus_if->chip) {
1075                 bus_if->chip = drvr->revinfo.chipnum;
1076                 bus_if->chiprev = drvr->revinfo.chiprev;
1077                 brcmf_dbg(INFO, "firmware revinfo: chip %x (%d) rev %d\n",
1078                           bus_if->chip, bus_if->chip, bus_if->chiprev);
1079         }
1080         brcmf_feat_attach(drvr);
1081
1082         ret = brcmf_fws_init(drvr);
1083         if (ret < 0)
1084                 goto fail;
1085
1086         brcmf_fws_add_interface(ifp);
1087
1088         drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev,
1089                                              brcmf_p2p_enable);
1090         if (drvr->config == NULL) {
1091                 ret = -ENOMEM;
1092                 goto fail;
1093         }
1094
1095         ret = brcmf_net_attach(ifp, false);
1096
1097         if ((!ret) && (brcmf_p2p_enable)) {
1098                 p2p_ifp = drvr->iflist[1];
1099                 if (p2p_ifp)
1100                         ret = brcmf_net_p2p_attach(p2p_ifp);
1101         }
1102 fail:
1103         if (ret < 0) {
1104                 brcmf_err("failed: %d\n", ret);
1105                 if (drvr->config) {
1106                         brcmf_cfg80211_detach(drvr->config);
1107                         drvr->config = NULL;
1108                 }
1109                 if (drvr->fws) {
1110                         brcmf_fws_del_interface(ifp);
1111                         brcmf_fws_deinit(drvr);
1112                 }
1113                 if (ifp)
1114                         brcmf_net_detach(ifp->ndev);
1115                 if (p2p_ifp)
1116                         brcmf_net_detach(p2p_ifp->ndev);
1117                 return ret;
1118         }
1119         return 0;
1120 }
1121
1122 void brcmf_bus_add_txhdrlen(struct device *dev, uint len)
1123 {
1124         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1125         struct brcmf_pub *drvr = bus_if->drvr;
1126
1127         if (drvr) {
1128                 drvr->hdrlen += len;
1129         }
1130 }
1131
1132 static void brcmf_bus_detach(struct brcmf_pub *drvr)
1133 {
1134         brcmf_dbg(TRACE, "Enter\n");
1135
1136         if (drvr) {
1137                 /* Stop the bus module */
1138                 brcmf_bus_stop(drvr->bus_if);
1139         }
1140 }
1141
1142 void brcmf_dev_reset(struct device *dev)
1143 {
1144         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1145         struct brcmf_pub *drvr = bus_if->drvr;
1146
1147         if (drvr == NULL)
1148                 return;
1149
1150         if (drvr->iflist[0])
1151                 brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
1152 }
1153
1154 void brcmf_detach(struct device *dev)
1155 {
1156         s32 i;
1157         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1158         struct brcmf_pub *drvr = bus_if->drvr;
1159
1160         brcmf_dbg(TRACE, "Enter\n");
1161
1162         if (drvr == NULL)
1163                 return;
1164
1165         /* stop firmware event handling */
1166         brcmf_fweh_detach(drvr);
1167         if (drvr->config)
1168                 brcmf_p2p_detach(&drvr->config->p2p);
1169
1170         brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
1171
1172         /* make sure primary interface removed last */
1173         for (i = BRCMF_MAX_IFS-1; i > -1; i--)
1174                 brcmf_remove_interface(drvr->iflist[i]);
1175
1176         brcmf_cfg80211_detach(drvr->config);
1177
1178         brcmf_fws_deinit(drvr);
1179
1180         brcmf_bus_detach(drvr);
1181
1182         brcmf_proto_detach(drvr);
1183
1184         brcmf_debug_detach(drvr);
1185         bus_if->drvr = NULL;
1186         kfree(drvr);
1187 }
1188
1189 s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len)
1190 {
1191         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1192         struct brcmf_if *ifp = bus_if->drvr->iflist[0];
1193
1194         return brcmf_fil_iovar_data_set(ifp, name, data, len);
1195 }
1196
1197 static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
1198 {
1199         return atomic_read(&ifp->pend_8021x_cnt);
1200 }
1201
1202 int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp)
1203 {
1204         int err;
1205
1206         err = wait_event_timeout(ifp->pend_8021x_wait,
1207                                  !brcmf_get_pend_8021x_cnt(ifp),
1208                                  msecs_to_jiffies(MAX_WAIT_FOR_8021X_TX));
1209
1210         WARN_ON(!err);
1211
1212         return !err;
1213 }
1214
1215 void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state)
1216 {
1217         struct brcmf_pub *drvr = bus->drvr;
1218         struct net_device *ndev;
1219         int ifidx;
1220
1221         brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state);
1222         bus->state = state;
1223
1224         if (state == BRCMF_BUS_UP) {
1225                 for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
1226                         if ((drvr->iflist[ifidx]) &&
1227                             (drvr->iflist[ifidx]->ndev)) {
1228                                 ndev = drvr->iflist[ifidx]->ndev;
1229                                 if (netif_queue_stopped(ndev))
1230                                         netif_wake_queue(ndev);
1231                         }
1232                 }
1233         }
1234 }
1235
1236 static void brcmf_driver_register(struct work_struct *work)
1237 {
1238 #ifdef CONFIG_BRCMFMAC_SDIO
1239         brcmf_sdio_register();
1240 #endif
1241 #ifdef CONFIG_BRCMFMAC_USB
1242         brcmf_usb_register();
1243 #endif
1244 #ifdef CONFIG_BRCMFMAC_PCIE
1245         brcmf_pcie_register();
1246 #endif
1247 }
1248 static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register);
1249
1250 static int __init brcmfmac_module_init(void)
1251 {
1252         brcmf_debugfs_init();
1253 #ifdef CONFIG_BRCMFMAC_SDIO
1254         brcmf_sdio_init();
1255 #endif
1256         if (!schedule_work(&brcmf_driver_work))
1257                 return -EBUSY;
1258
1259         return 0;
1260 }
1261
1262 static void __exit brcmfmac_module_exit(void)
1263 {
1264         cancel_work_sync(&brcmf_driver_work);
1265
1266 #ifdef CONFIG_BRCMFMAC_SDIO
1267         brcmf_sdio_exit();
1268 #endif
1269 #ifdef CONFIG_BRCMFMAC_USB
1270         brcmf_usb_exit();
1271 #endif
1272 #ifdef CONFIG_BRCMFMAC_PCIE
1273         brcmf_pcie_exit();
1274 #endif
1275         brcmf_debugfs_exit();
1276 }
1277
1278 module_init(brcmfmac_module_init);
1279 module_exit(brcmfmac_module_exit);