This source file includes following definitions.
- brcmf_ifname
- brcmf_get_ifp
- brcmf_configure_arp_nd_offload
- _brcmf_set_multicast_list
- _brcmf_update_ndtable
- _brcmf_update_ndtable
- brcmf_netdev_set_mac_address
- brcmf_netdev_set_multicast_list
- brcmf_skb_is_iapp
- brcmf_netdev_start_xmit
- brcmf_txflowblock_if
- brcmf_netif_rx
- brcmf_netif_mon_rx
- brcmf_rx_hdrpull
- brcmf_rx_frame
- brcmf_rx_event
- brcmf_txfinalize
- brcmf_ethtool_get_drvinfo
- brcmf_netdev_stop
- brcmf_netdev_open
- brcmf_net_attach
- brcmf_net_detach
- brcmf_net_setcarrier
- brcmf_net_p2p_open
- brcmf_net_p2p_stop
- brcmf_net_p2p_start_xmit
- brcmf_net_p2p_attach
- brcmf_add_if
- brcmf_del_if
- brcmf_remove_interface
- brcmf_psm_watchdog_notify
- brcmf_inetaddr_changed
- brcmf_inet6addr_changed
- brcmf_revinfo_read
- brcmf_core_bus_reset
- bus_reset_write
- brcmf_bus_started
- brcmf_alloc
- brcmf_attach
- brcmf_bus_add_txhdrlen
- brcmf_dev_reset
- brcmf_dev_coredump
- brcmf_fw_crashed
- brcmf_detach
- brcmf_free
- brcmf_iovar_data_set
- brcmf_get_pend_8021x_cnt
- brcmf_netdev_wait_pend8021x
- brcmf_bus_change_state
- brcmf_driver_register
- brcmf_core_init
- brcmf_core_exit
1
2
3
4
5
6 #include <linux/kernel.h>
7 #include <linux/etherdevice.h>
8 #include <linux/module.h>
9 #include <linux/inetdevice.h>
10 #include <net/cfg80211.h>
11 #include <net/rtnetlink.h>
12 #include <net/addrconf.h>
13 #include <net/ieee80211_radiotap.h>
14 #include <net/ipv6.h>
15 #include <brcmu_utils.h>
16 #include <brcmu_wifi.h>
17
18 #include "core.h"
19 #include "bus.h"
20 #include "debug.h"
21 #include "fwil_types.h"
22 #include "p2p.h"
23 #include "pno.h"
24 #include "cfg80211.h"
25 #include "fwil.h"
26 #include "feature.h"
27 #include "proto.h"
28 #include "pcie.h"
29 #include "common.h"
30
31 #define MAX_WAIT_FOR_8021X_TX msecs_to_jiffies(950)
32
33 #define BRCMF_BSSIDX_INVALID -1
34
35 #define RXS_PBPRES BIT(2)
36
37 #define D11_PHY_HDR_LEN 6
38
39 struct d11rxhdr_le {
40 __le16 RxFrameSize;
41 u16 PAD;
42 __le16 PhyRxStatus_0;
43 __le16 PhyRxStatus_1;
44 __le16 PhyRxStatus_2;
45 __le16 PhyRxStatus_3;
46 __le16 PhyRxStatus_4;
47 __le16 PhyRxStatus_5;
48 __le16 RxStatus1;
49 __le16 RxStatus2;
50 __le16 RxTSFTime;
51 __le16 RxChan;
52 u8 unknown[12];
53 } __packed;
54
55 struct wlc_d11rxhdr {
56 struct d11rxhdr_le rxhdr;
57 __le32 tsf_l;
58 s8 rssi;
59 s8 rxpwr0;
60 s8 rxpwr1;
61 s8 do_rssi_ma;
62 s8 rxpwr[4];
63 } __packed;
64
65 char *brcmf_ifname(struct brcmf_if *ifp)
66 {
67 if (!ifp)
68 return "<if_null>";
69
70 if (ifp->ndev)
71 return ifp->ndev->name;
72
73 return "<if_none>";
74 }
75
76 struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx)
77 {
78 struct brcmf_if *ifp;
79 s32 bsscfgidx;
80
81 if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
82 bphy_err(drvr, "ifidx %d out of range\n", ifidx);
83 return NULL;
84 }
85
86 ifp = NULL;
87 bsscfgidx = drvr->if2bss[ifidx];
88 if (bsscfgidx >= 0)
89 ifp = drvr->iflist[bsscfgidx];
90
91 return ifp;
92 }
93
94 void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
95 {
96 s32 err;
97 u32 mode;
98
99 if (enable)
100 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
101 else
102 mode = 0;
103
104
105
106 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode);
107 if (err) {
108 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
109 mode, err);
110 } else {
111 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
112 if (err) {
113 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
114 enable, err);
115 } else {
116 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
117 enable, mode);
118 }
119 }
120
121 err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
122 if (err) {
123 brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
124 enable, err);
125 } else {
126 brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
127 enable, mode);
128 }
129 }
130
131 static void _brcmf_set_multicast_list(struct work_struct *work)
132 {
133 struct brcmf_if *ifp = container_of(work, struct brcmf_if,
134 multicast_work);
135 struct brcmf_pub *drvr = ifp->drvr;
136 struct net_device *ndev;
137 struct netdev_hw_addr *ha;
138 u32 cmd_value, cnt;
139 __le32 cnt_le;
140 char *buf, *bufp;
141 u32 buflen;
142 s32 err;
143
144 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
145
146 ndev = ifp->ndev;
147
148
149 cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
150
151
152 cnt = netdev_mc_count(ndev);
153 buflen = sizeof(cnt) + (cnt * ETH_ALEN);
154 buf = kmalloc(buflen, GFP_ATOMIC);
155 if (!buf)
156 return;
157 bufp = buf;
158
159 cnt_le = cpu_to_le32(cnt);
160 memcpy(bufp, &cnt_le, sizeof(cnt_le));
161 bufp += sizeof(cnt_le);
162
163 netdev_for_each_mc_addr(ha, ndev) {
164 if (!cnt)
165 break;
166 memcpy(bufp, ha->addr, ETH_ALEN);
167 bufp += ETH_ALEN;
168 cnt--;
169 }
170
171 err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
172 if (err < 0) {
173 bphy_err(drvr, "Setting mcast_list failed, %d\n", err);
174 cmd_value = cnt ? true : cmd_value;
175 }
176
177 kfree(buf);
178
179
180
181
182
183
184 err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
185 if (err < 0)
186 bphy_err(drvr, "Setting allmulti failed, %d\n", err);
187
188
189 cmd_value = (ndev->flags & IFF_PROMISC) ? true : false;
190 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PROMISC, cmd_value);
191 if (err < 0)
192 bphy_err(drvr, "Setting BRCMF_C_SET_PROMISC failed, %d\n",
193 err);
194 brcmf_configure_arp_nd_offload(ifp, !cmd_value);
195 }
196
197 #if IS_ENABLED(CONFIG_IPV6)
198 static void _brcmf_update_ndtable(struct work_struct *work)
199 {
200 struct brcmf_if *ifp = container_of(work, struct brcmf_if,
201 ndoffload_work);
202 struct brcmf_pub *drvr = ifp->drvr;
203 int i, ret;
204
205
206 ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip_clear", NULL, 0);
207 if (ret) {
208 brcmf_dbg(TRACE, "fail to clear nd ip table err:%d\n", ret);
209 return;
210 }
211
212 for (i = 0; i < ifp->ipv6addr_idx; i++) {
213 ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip",
214 &ifp->ipv6_addr_tbl[i],
215 sizeof(struct in6_addr));
216 if (ret)
217 bphy_err(drvr, "add nd ip err %d\n", ret);
218 }
219 }
220 #else
221 static void _brcmf_update_ndtable(struct work_struct *work)
222 {
223 }
224 #endif
225
226 static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
227 {
228 struct brcmf_if *ifp = netdev_priv(ndev);
229 struct sockaddr *sa = (struct sockaddr *)addr;
230 struct brcmf_pub *drvr = ifp->drvr;
231 int err;
232
233 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
234
235 err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", sa->sa_data,
236 ETH_ALEN);
237 if (err < 0) {
238 bphy_err(drvr, "Setting cur_etheraddr failed, %d\n", err);
239 } else {
240 brcmf_dbg(TRACE, "updated to %pM\n", sa->sa_data);
241 memcpy(ifp->mac_addr, sa->sa_data, ETH_ALEN);
242 memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
243 }
244 return err;
245 }
246
247 static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
248 {
249 struct brcmf_if *ifp = netdev_priv(ndev);
250
251 schedule_work(&ifp->multicast_work);
252 }
253
254
255
256
257
258
259 static bool brcmf_skb_is_iapp(struct sk_buff *skb)
260 {
261 static const u8 iapp_l2_update_packet[6] __aligned(2) = {
262 0x00, 0x01, 0xaf, 0x81, 0x01, 0x00,
263 };
264 unsigned char *eth_data;
265 #if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
266 const u16 *a, *b;
267 #endif
268
269 if (skb->len - skb->mac_len != 6 ||
270 !is_multicast_ether_addr(eth_hdr(skb)->h_dest))
271 return false;
272
273 eth_data = skb_mac_header(skb) + ETH_HLEN;
274 #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
275 return !(((*(const u32 *)eth_data) ^ (*(const u32 *)iapp_l2_update_packet)) |
276 ((*(const u16 *)(eth_data + 4)) ^ (*(const u16 *)(iapp_l2_update_packet + 4))));
277 #else
278 a = (const u16 *)eth_data;
279 b = (const u16 *)iapp_l2_update_packet;
280
281 return !((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]));
282 #endif
283 }
284
285 static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
286 struct net_device *ndev)
287 {
288 int ret;
289 struct brcmf_if *ifp = netdev_priv(ndev);
290 struct brcmf_pub *drvr = ifp->drvr;
291 struct ethhdr *eh;
292 int head_delta;
293
294 brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
295
296
297 if (drvr->bus_if->state != BRCMF_BUS_UP) {
298 bphy_err(drvr, "xmit rejected state=%d\n", drvr->bus_if->state);
299 netif_stop_queue(ndev);
300 dev_kfree_skb(skb);
301 ret = -ENODEV;
302 goto done;
303 }
304
305
306
307
308
309
310
311
312
313
314
315
316 if (!drvr->settings->iapp && brcmf_skb_is_iapp(skb)) {
317 dev_kfree_skb(skb);
318 ret = -EINVAL;
319 goto done;
320 }
321
322
323 if (skb_headroom(skb) < drvr->hdrlen || skb_header_cloned(skb)) {
324 head_delta = max_t(int, drvr->hdrlen - skb_headroom(skb), 0);
325
326 brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n",
327 brcmf_ifname(ifp), head_delta);
328 atomic_inc(&drvr->bus_if->stats.pktcowed);
329 ret = pskb_expand_head(skb, ALIGN(head_delta, NET_SKB_PAD), 0,
330 GFP_ATOMIC);
331 if (ret < 0) {
332 bphy_err(drvr, "%s: failed to expand headroom\n",
333 brcmf_ifname(ifp));
334 atomic_inc(&drvr->bus_if->stats.pktcow_failed);
335 goto done;
336 }
337 }
338
339
340 if (skb->len < sizeof(*eh)) {
341 ret = -EINVAL;
342 dev_kfree_skb(skb);
343 goto done;
344 }
345
346 eh = (struct ethhdr *)(skb->data);
347
348 if (eh->h_proto == htons(ETH_P_PAE))
349 atomic_inc(&ifp->pend_8021x_cnt);
350
351
352 if ((skb->priority == 0) || (skb->priority > 7))
353 skb->priority = cfg80211_classify8021d(skb, NULL);
354
355 ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb);
356 if (ret < 0)
357 brcmf_txfinalize(ifp, skb, false);
358
359 done:
360 if (ret) {
361 ndev->stats.tx_dropped++;
362 } else {
363 ndev->stats.tx_packets++;
364 ndev->stats.tx_bytes += skb->len;
365 }
366
367
368 return NETDEV_TX_OK;
369 }
370
371 void brcmf_txflowblock_if(struct brcmf_if *ifp,
372 enum brcmf_netif_stop_reason reason, bool state)
373 {
374 unsigned long flags;
375
376 if (!ifp || !ifp->ndev)
377 return;
378
379 brcmf_dbg(TRACE, "enter: bsscfgidx=%d stop=0x%X reason=%d state=%d\n",
380 ifp->bsscfgidx, ifp->netif_stop, reason, state);
381
382 spin_lock_irqsave(&ifp->netif_stop_lock, flags);
383 if (state) {
384 if (!ifp->netif_stop)
385 netif_stop_queue(ifp->ndev);
386 ifp->netif_stop |= reason;
387 } else {
388 ifp->netif_stop &= ~reason;
389 if (!ifp->netif_stop)
390 netif_wake_queue(ifp->ndev);
391 }
392 spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
393 }
394
395 void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
396 {
397
398
399
400
401 if (!ifp->drvr->settings->iapp && brcmf_skb_is_iapp(skb)) {
402 brcmu_pkt_buf_free_skb(skb);
403 return;
404 }
405
406 if (skb->pkt_type == PACKET_MULTICAST)
407 ifp->ndev->stats.multicast++;
408
409 if (!(ifp->ndev->flags & IFF_UP)) {
410 brcmu_pkt_buf_free_skb(skb);
411 return;
412 }
413
414 ifp->ndev->stats.rx_bytes += skb->len;
415 ifp->ndev->stats.rx_packets++;
416
417 brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol));
418 if (in_interrupt())
419 netif_rx(skb);
420 else
421
422
423
424
425 netif_rx_ni(skb);
426 }
427
428 void brcmf_netif_mon_rx(struct brcmf_if *ifp, struct sk_buff *skb)
429 {
430 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MONITOR_FMT_RADIOTAP)) {
431
432 } else if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MONITOR_FMT_HW_RX_HDR)) {
433 struct wlc_d11rxhdr *wlc_rxhdr = (struct wlc_d11rxhdr *)skb->data;
434 struct ieee80211_radiotap_header *radiotap;
435 unsigned int offset;
436 u16 RxStatus1;
437
438 RxStatus1 = le16_to_cpu(wlc_rxhdr->rxhdr.RxStatus1);
439
440 offset = sizeof(struct wlc_d11rxhdr);
441
442
443
444 if (RxStatus1 & RXS_PBPRES)
445 offset += 2;
446 offset += D11_PHY_HDR_LEN;
447
448 skb_pull(skb, offset);
449
450
451 radiotap = skb_push(skb, sizeof(*radiotap));
452 memset(radiotap, 0, sizeof(*radiotap));
453 radiotap->it_len = cpu_to_le16(sizeof(*radiotap));
454
455
456 skb->len -= 4;
457 } else {
458 struct ieee80211_radiotap_header *radiotap;
459
460
461 radiotap = skb_push(skb, sizeof(*radiotap));
462 memset(radiotap, 0, sizeof(*radiotap));
463 radiotap->it_len = cpu_to_le16(sizeof(*radiotap));
464
465
466 skb->len -= 4;
467 }
468
469 skb->dev = ifp->ndev;
470 skb_reset_mac_header(skb);
471 skb->pkt_type = PACKET_OTHERHOST;
472 skb->protocol = htons(ETH_P_802_2);
473
474 brcmf_netif_rx(ifp, skb);
475 }
476
477 static int brcmf_rx_hdrpull(struct brcmf_pub *drvr, struct sk_buff *skb,
478 struct brcmf_if **ifp)
479 {
480 int ret;
481
482
483 ret = brcmf_proto_hdrpull(drvr, true, skb, ifp);
484
485 if (ret || !(*ifp) || !(*ifp)->ndev) {
486 if (ret != -ENODATA && *ifp)
487 (*ifp)->ndev->stats.rx_errors++;
488 brcmu_pkt_buf_free_skb(skb);
489 return -ENODATA;
490 }
491
492 skb->protocol = eth_type_trans(skb, (*ifp)->ndev);
493 return 0;
494 }
495
496 void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event)
497 {
498 struct brcmf_if *ifp;
499 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
500 struct brcmf_pub *drvr = bus_if->drvr;
501
502 brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
503
504 if (brcmf_rx_hdrpull(drvr, skb, &ifp))
505 return;
506
507 if (brcmf_proto_is_reorder_skb(skb)) {
508 brcmf_proto_rxreorder(ifp, skb);
509 } else {
510
511 if (handle_event)
512 brcmf_fweh_process_skb(ifp->drvr, skb,
513 BCMILCP_SUBTYPE_VENDOR_LONG);
514
515 brcmf_netif_rx(ifp, skb);
516 }
517 }
518
519 void brcmf_rx_event(struct device *dev, struct sk_buff *skb)
520 {
521 struct brcmf_if *ifp;
522 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
523 struct brcmf_pub *drvr = bus_if->drvr;
524
525 brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
526
527 if (brcmf_rx_hdrpull(drvr, skb, &ifp))
528 return;
529
530 brcmf_fweh_process_skb(ifp->drvr, skb, 0);
531 brcmu_pkt_buf_free_skb(skb);
532 }
533
534 void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
535 {
536 struct ethhdr *eh;
537 u16 type;
538
539 eh = (struct ethhdr *)(txp->data);
540 type = ntohs(eh->h_proto);
541
542 if (type == ETH_P_PAE) {
543 atomic_dec(&ifp->pend_8021x_cnt);
544 if (waitqueue_active(&ifp->pend_8021x_wait))
545 wake_up(&ifp->pend_8021x_wait);
546 }
547
548 if (!success)
549 ifp->ndev->stats.tx_errors++;
550
551 brcmu_pkt_buf_free_skb(txp);
552 }
553
554 static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
555 struct ethtool_drvinfo *info)
556 {
557 struct brcmf_if *ifp = netdev_priv(ndev);
558 struct brcmf_pub *drvr = ifp->drvr;
559 char drev[BRCMU_DOTREV_LEN] = "n/a";
560
561 if (drvr->revinfo.result == 0)
562 brcmu_dotrev_str(drvr->revinfo.driverrev, drev);
563 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
564 strlcpy(info->version, drev, sizeof(info->version));
565 strlcpy(info->fw_version, drvr->fwver, sizeof(info->fw_version));
566 strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
567 sizeof(info->bus_info));
568 }
569
570 static const struct ethtool_ops brcmf_ethtool_ops = {
571 .get_drvinfo = brcmf_ethtool_get_drvinfo,
572 };
573
574 static int brcmf_netdev_stop(struct net_device *ndev)
575 {
576 struct brcmf_if *ifp = netdev_priv(ndev);
577
578 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
579
580 brcmf_cfg80211_down(ndev);
581
582 if (ifp->drvr->bus_if->state == BRCMF_BUS_UP)
583 brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear", NULL, 0);
584
585 brcmf_net_setcarrier(ifp, false);
586
587 return 0;
588 }
589
590 static int brcmf_netdev_open(struct net_device *ndev)
591 {
592 struct brcmf_if *ifp = netdev_priv(ndev);
593 struct brcmf_pub *drvr = ifp->drvr;
594 struct brcmf_bus *bus_if = drvr->bus_if;
595 u32 toe_ol;
596
597 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
598
599
600 if (bus_if->state != BRCMF_BUS_UP) {
601 bphy_err(drvr, "failed bus is not ready\n");
602 return -EAGAIN;
603 }
604
605 atomic_set(&ifp->pend_8021x_cnt, 0);
606
607
608 if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
609 && (toe_ol & TOE_TX_CSUM_OL) != 0)
610 ndev->features |= NETIF_F_IP_CSUM;
611 else
612 ndev->features &= ~NETIF_F_IP_CSUM;
613
614 if (brcmf_cfg80211_up(ndev)) {
615 bphy_err(drvr, "failed to bring up cfg80211\n");
616 return -EIO;
617 }
618
619
620 netif_carrier_off(ndev);
621 return 0;
622 }
623
624 static const struct net_device_ops brcmf_netdev_ops_pri = {
625 .ndo_open = brcmf_netdev_open,
626 .ndo_stop = brcmf_netdev_stop,
627 .ndo_start_xmit = brcmf_netdev_start_xmit,
628 .ndo_set_mac_address = brcmf_netdev_set_mac_address,
629 .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
630 };
631
632 int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
633 {
634 struct brcmf_pub *drvr = ifp->drvr;
635 struct net_device *ndev;
636 s32 err;
637
638 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
639 ifp->mac_addr);
640 ndev = ifp->ndev;
641
642
643 ndev->netdev_ops = &brcmf_netdev_ops_pri;
644
645 ndev->needed_headroom += drvr->hdrlen;
646 ndev->ethtool_ops = &brcmf_ethtool_ops;
647
648
649 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
650 dev_net_set(ndev, wiphy_net(cfg_to_wiphy(drvr->config)));
651
652 INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
653 INIT_WORK(&ifp->ndoffload_work, _brcmf_update_ndtable);
654
655 if (rtnl_locked)
656 err = register_netdevice(ndev);
657 else
658 err = register_netdev(ndev);
659 if (err != 0) {
660 bphy_err(drvr, "couldn't register the net device\n");
661 goto fail;
662 }
663
664 ndev->priv_destructor = brcmf_cfg80211_free_netdev;
665 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
666 return 0;
667
668 fail:
669 drvr->iflist[ifp->bsscfgidx] = NULL;
670 ndev->netdev_ops = NULL;
671 return -EBADE;
672 }
673
674 static void brcmf_net_detach(struct net_device *ndev, bool rtnl_locked)
675 {
676 if (ndev->reg_state == NETREG_REGISTERED) {
677 if (rtnl_locked)
678 unregister_netdevice(ndev);
679 else
680 unregister_netdev(ndev);
681 } else {
682 brcmf_cfg80211_free_netdev(ndev);
683 free_netdev(ndev);
684 }
685 }
686
687 void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on)
688 {
689 struct net_device *ndev;
690
691 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d carrier=%d\n", ifp->bsscfgidx,
692 on);
693
694 ndev = ifp->ndev;
695 brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_DISCONNECTED, !on);
696 if (on) {
697 if (!netif_carrier_ok(ndev))
698 netif_carrier_on(ndev);
699
700 } else {
701 if (netif_carrier_ok(ndev))
702 netif_carrier_off(ndev);
703 }
704 }
705
706 static int brcmf_net_p2p_open(struct net_device *ndev)
707 {
708 brcmf_dbg(TRACE, "Enter\n");
709
710 return brcmf_cfg80211_up(ndev);
711 }
712
713 static int brcmf_net_p2p_stop(struct net_device *ndev)
714 {
715 brcmf_dbg(TRACE, "Enter\n");
716
717 return brcmf_cfg80211_down(ndev);
718 }
719
720 static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
721 struct net_device *ndev)
722 {
723 if (skb)
724 dev_kfree_skb_any(skb);
725
726 return NETDEV_TX_OK;
727 }
728
729 static const struct net_device_ops brcmf_netdev_ops_p2p = {
730 .ndo_open = brcmf_net_p2p_open,
731 .ndo_stop = brcmf_net_p2p_stop,
732 .ndo_start_xmit = brcmf_net_p2p_start_xmit
733 };
734
735 static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
736 {
737 struct brcmf_pub *drvr = ifp->drvr;
738 struct net_device *ndev;
739
740 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
741 ifp->mac_addr);
742 ndev = ifp->ndev;
743
744 ndev->netdev_ops = &brcmf_netdev_ops_p2p;
745
746
747 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
748
749 if (register_netdev(ndev) != 0) {
750 bphy_err(drvr, "couldn't register the p2p net device\n");
751 goto fail;
752 }
753
754 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
755
756 return 0;
757
758 fail:
759 ifp->drvr->iflist[ifp->bsscfgidx] = NULL;
760 ndev->netdev_ops = NULL;
761 return -EBADE;
762 }
763
764 struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
765 bool is_p2pdev, const char *name, u8 *mac_addr)
766 {
767 struct brcmf_if *ifp;
768 struct net_device *ndev;
769
770 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx, ifidx);
771
772 ifp = drvr->iflist[bsscfgidx];
773
774
775
776
777 if (ifp) {
778 if (ifidx) {
779 bphy_err(drvr, "ERROR: netdev:%s already exists\n",
780 ifp->ndev->name);
781 netif_stop_queue(ifp->ndev);
782 brcmf_net_detach(ifp->ndev, false);
783 drvr->iflist[bsscfgidx] = NULL;
784 } else {
785 brcmf_dbg(INFO, "netdev:%s ignore IF event\n",
786 ifp->ndev->name);
787 return ERR_PTR(-EINVAL);
788 }
789 }
790
791 if (!drvr->settings->p2p_enable && is_p2pdev) {
792
793 brcmf_dbg(INFO, "allocate non-netdev interface\n");
794 ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
795 if (!ifp)
796 return ERR_PTR(-ENOMEM);
797 } else {
798 brcmf_dbg(INFO, "allocate netdev interface\n");
799
800 ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name,
801 NET_NAME_UNKNOWN, ether_setup);
802 if (!ndev)
803 return ERR_PTR(-ENOMEM);
804
805 ndev->needs_free_netdev = true;
806 ifp = netdev_priv(ndev);
807 ifp->ndev = ndev;
808
809 if (drvr->if2bss[ifidx] == BRCMF_BSSIDX_INVALID)
810 drvr->if2bss[ifidx] = bsscfgidx;
811 }
812
813 ifp->drvr = drvr;
814 drvr->iflist[bsscfgidx] = ifp;
815 ifp->ifidx = ifidx;
816 ifp->bsscfgidx = bsscfgidx;
817
818 init_waitqueue_head(&ifp->pend_8021x_wait);
819 spin_lock_init(&ifp->netif_stop_lock);
820
821 if (mac_addr != NULL)
822 memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
823
824 brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
825 current->pid, name, ifp->mac_addr);
826
827 return ifp;
828 }
829
830 static void brcmf_del_if(struct brcmf_pub *drvr, s32 bsscfgidx,
831 bool rtnl_locked)
832 {
833 struct brcmf_if *ifp;
834 int ifidx;
835
836 ifp = drvr->iflist[bsscfgidx];
837 if (!ifp) {
838 bphy_err(drvr, "Null interface, bsscfgidx=%d\n", bsscfgidx);
839 return;
840 }
841 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx,
842 ifp->ifidx);
843 ifidx = ifp->ifidx;
844
845 if (ifp->ndev) {
846 if (bsscfgidx == 0) {
847 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
848 rtnl_lock();
849 brcmf_netdev_stop(ifp->ndev);
850 rtnl_unlock();
851 }
852 } else {
853 netif_stop_queue(ifp->ndev);
854 }
855
856 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
857 cancel_work_sync(&ifp->multicast_work);
858 cancel_work_sync(&ifp->ndoffload_work);
859 }
860 brcmf_net_detach(ifp->ndev, rtnl_locked);
861 } else {
862
863
864
865
866
867
868
869 brcmf_p2p_ifp_removed(ifp, rtnl_locked);
870 kfree(ifp);
871 }
872
873 drvr->iflist[bsscfgidx] = NULL;
874 if (drvr->if2bss[ifidx] == bsscfgidx)
875 drvr->if2bss[ifidx] = BRCMF_BSSIDX_INVALID;
876 }
877
878 void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked)
879 {
880 if (!ifp || WARN_ON(ifp->drvr->iflist[ifp->bsscfgidx] != ifp))
881 return;
882 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", ifp->bsscfgidx,
883 ifp->ifidx);
884 brcmf_proto_del_if(ifp->drvr, ifp);
885 brcmf_del_if(ifp->drvr, ifp->bsscfgidx, rtnl_locked);
886 }
887
888 static int brcmf_psm_watchdog_notify(struct brcmf_if *ifp,
889 const struct brcmf_event_msg *evtmsg,
890 void *data)
891 {
892 struct brcmf_pub *drvr = ifp->drvr;
893 int err;
894
895 brcmf_dbg(TRACE, "enter: bsscfgidx=%d\n", ifp->bsscfgidx);
896
897 bphy_err(drvr, "PSM's watchdog has fired!\n");
898
899 err = brcmf_debug_create_memdump(ifp->drvr->bus_if, data,
900 evtmsg->datalen);
901 if (err)
902 bphy_err(drvr, "Failed to get memory dump, %d\n", err);
903
904 return err;
905 }
906
907 #ifdef CONFIG_INET
908 #define ARPOL_MAX_ENTRIES 8
909 static int brcmf_inetaddr_changed(struct notifier_block *nb,
910 unsigned long action, void *data)
911 {
912 struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
913 inetaddr_notifier);
914 struct in_ifaddr *ifa = data;
915 struct net_device *ndev = ifa->ifa_dev->dev;
916 struct brcmf_if *ifp;
917 int idx, i, ret;
918 u32 val;
919 __be32 addr_table[ARPOL_MAX_ENTRIES] = {0};
920
921
922 for (idx = 0; idx < BRCMF_MAX_IFS; idx++) {
923 ifp = drvr->iflist[idx];
924 if (ifp && ifp->ndev == ndev)
925 break;
926 if (idx == BRCMF_MAX_IFS - 1)
927 return NOTIFY_DONE;
928 }
929
930
931 ret = brcmf_fil_iovar_int_get(ifp, "arpoe", &val);
932 if (ret)
933 return NOTIFY_OK;
934
935
936 ret = brcmf_fil_iovar_int_get(ifp, "arp_version", &val);
937 if (ret)
938 val = 1;
939 if (val == 1)
940 ifp = drvr->iflist[0];
941
942
943 ret = brcmf_fil_iovar_data_get(ifp, "arp_hostip", addr_table,
944 sizeof(addr_table));
945 if (ret) {
946 bphy_err(drvr, "fail to get arp ip table err:%d\n", ret);
947 return NOTIFY_OK;
948 }
949
950 for (i = 0; i < ARPOL_MAX_ENTRIES; i++)
951 if (ifa->ifa_address == addr_table[i])
952 break;
953
954 switch (action) {
955 case NETDEV_UP:
956 if (i == ARPOL_MAX_ENTRIES) {
957 brcmf_dbg(TRACE, "add %pI4 to arp table\n",
958 &ifa->ifa_address);
959
960 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
961 &ifa->ifa_address, sizeof(ifa->ifa_address));
962 if (ret)
963 bphy_err(drvr, "add arp ip err %d\n", ret);
964 }
965 break;
966 case NETDEV_DOWN:
967 if (i < ARPOL_MAX_ENTRIES) {
968 addr_table[i] = 0;
969 brcmf_dbg(TRACE, "remove %pI4 from arp table\n",
970 &ifa->ifa_address);
971
972 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear",
973 NULL, 0);
974 if (ret) {
975 bphy_err(drvr, "fail to clear arp ip table err:%d\n",
976 ret);
977 return NOTIFY_OK;
978 }
979 for (i = 0; i < ARPOL_MAX_ENTRIES; i++) {
980 if (addr_table[i] == 0)
981 continue;
982 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
983 &addr_table[i],
984 sizeof(addr_table[i]));
985 if (ret)
986 bphy_err(drvr, "add arp ip err %d\n",
987 ret);
988 }
989 }
990 break;
991 default:
992 break;
993 }
994
995 return NOTIFY_OK;
996 }
997 #endif
998
999 #if IS_ENABLED(CONFIG_IPV6)
1000 static int brcmf_inet6addr_changed(struct notifier_block *nb,
1001 unsigned long action, void *data)
1002 {
1003 struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
1004 inet6addr_notifier);
1005 struct inet6_ifaddr *ifa = data;
1006 struct brcmf_if *ifp;
1007 int i;
1008 struct in6_addr *table;
1009
1010
1011 ifp = drvr->iflist[0];
1012 if (!ifp)
1013 return NOTIFY_DONE;
1014 if (ifp->ndev != ifa->idev->dev)
1015 return NOTIFY_DONE;
1016
1017 table = ifp->ipv6_addr_tbl;
1018 for (i = 0; i < NDOL_MAX_ENTRIES; i++)
1019 if (ipv6_addr_equal(&ifa->addr, &table[i]))
1020 break;
1021
1022 switch (action) {
1023 case NETDEV_UP:
1024 if (i == NDOL_MAX_ENTRIES) {
1025 if (ifp->ipv6addr_idx < NDOL_MAX_ENTRIES) {
1026 table[ifp->ipv6addr_idx++] = ifa->addr;
1027 } else {
1028 for (i = 0; i < NDOL_MAX_ENTRIES - 1; i++)
1029 table[i] = table[i + 1];
1030 table[NDOL_MAX_ENTRIES - 1] = ifa->addr;
1031 }
1032 }
1033 break;
1034 case NETDEV_DOWN:
1035 if (i < NDOL_MAX_ENTRIES) {
1036 for (; i < ifp->ipv6addr_idx - 1; i++)
1037 table[i] = table[i + 1];
1038 memset(&table[i], 0, sizeof(table[i]));
1039 ifp->ipv6addr_idx--;
1040 }
1041 break;
1042 default:
1043 break;
1044 }
1045
1046 schedule_work(&ifp->ndoffload_work);
1047
1048 return NOTIFY_OK;
1049 }
1050 #endif
1051
1052 static int brcmf_revinfo_read(struct seq_file *s, void *data)
1053 {
1054 struct brcmf_bus *bus_if = dev_get_drvdata(s->private);
1055 struct brcmf_rev_info *ri = &bus_if->drvr->revinfo;
1056 char drev[BRCMU_DOTREV_LEN];
1057 char brev[BRCMU_BOARDREV_LEN];
1058
1059 seq_printf(s, "vendorid: 0x%04x\n", ri->vendorid);
1060 seq_printf(s, "deviceid: 0x%04x\n", ri->deviceid);
1061 seq_printf(s, "radiorev: %s\n", brcmu_dotrev_str(ri->radiorev, drev));
1062 seq_printf(s, "chip: %s\n", ri->chipname);
1063 seq_printf(s, "chippkg: %u\n", ri->chippkg);
1064 seq_printf(s, "corerev: %u\n", ri->corerev);
1065 seq_printf(s, "boardid: 0x%04x\n", ri->boardid);
1066 seq_printf(s, "boardvendor: 0x%04x\n", ri->boardvendor);
1067 seq_printf(s, "boardrev: %s\n", brcmu_boardrev_str(ri->boardrev, brev));
1068 seq_printf(s, "driverrev: %s\n", brcmu_dotrev_str(ri->driverrev, drev));
1069 seq_printf(s, "ucoderev: %u\n", ri->ucoderev);
1070 seq_printf(s, "bus: %u\n", ri->bus);
1071 seq_printf(s, "phytype: %u\n", ri->phytype);
1072 seq_printf(s, "phyrev: %u\n", ri->phyrev);
1073 seq_printf(s, "anarev: %u\n", ri->anarev);
1074 seq_printf(s, "nvramrev: %08x\n", ri->nvramrev);
1075
1076 seq_printf(s, "clmver: %s\n", bus_if->drvr->clmver);
1077
1078 return 0;
1079 }
1080
1081 static void brcmf_core_bus_reset(struct work_struct *work)
1082 {
1083 struct brcmf_pub *drvr = container_of(work, struct brcmf_pub,
1084 bus_reset);
1085
1086 brcmf_bus_reset(drvr->bus_if);
1087 }
1088
1089 static ssize_t bus_reset_write(struct file *file, const char __user *user_buf,
1090 size_t count, loff_t *ppos)
1091 {
1092 struct brcmf_pub *drvr = file->private_data;
1093 u8 value;
1094
1095 if (kstrtou8_from_user(user_buf, count, 0, &value))
1096 return -EINVAL;
1097
1098 if (value != 1)
1099 return -EINVAL;
1100
1101 schedule_work(&drvr->bus_reset);
1102
1103 return count;
1104 }
1105
1106 static const struct file_operations bus_reset_fops = {
1107 .open = simple_open,
1108 .llseek = no_llseek,
1109 .write = bus_reset_write,
1110 };
1111
1112 static int brcmf_bus_started(struct brcmf_pub *drvr, struct cfg80211_ops *ops)
1113 {
1114 int ret = -1;
1115 struct brcmf_bus *bus_if = drvr->bus_if;
1116 struct brcmf_if *ifp;
1117 struct brcmf_if *p2p_ifp;
1118
1119 brcmf_dbg(TRACE, "\n");
1120
1121
1122 ifp = brcmf_add_if(drvr, 0, 0, false, "wlan%d", NULL);
1123 if (IS_ERR(ifp))
1124 return PTR_ERR(ifp);
1125
1126 p2p_ifp = NULL;
1127
1128
1129 brcmf_bus_change_state(bus_if, BRCMF_BUS_UP);
1130
1131
1132 ret = brcmf_bus_preinit(bus_if);
1133 if (ret < 0)
1134 goto fail;
1135
1136
1137 ret = brcmf_c_preinit_dcmds(ifp);
1138 if (ret < 0)
1139 goto fail;
1140
1141 brcmf_feat_attach(drvr);
1142
1143 ret = brcmf_proto_init_done(drvr);
1144 if (ret < 0)
1145 goto fail;
1146
1147 brcmf_proto_add_if(drvr, ifp);
1148
1149 drvr->config = brcmf_cfg80211_attach(drvr, ops,
1150 drvr->settings->p2p_enable);
1151 if (drvr->config == NULL) {
1152 ret = -ENOMEM;
1153 goto fail;
1154 }
1155
1156 ret = brcmf_net_attach(ifp, false);
1157
1158 if ((!ret) && (drvr->settings->p2p_enable)) {
1159 p2p_ifp = drvr->iflist[1];
1160 if (p2p_ifp)
1161 ret = brcmf_net_p2p_attach(p2p_ifp);
1162 }
1163
1164 if (ret)
1165 goto fail;
1166
1167 #ifdef CONFIG_INET
1168 drvr->inetaddr_notifier.notifier_call = brcmf_inetaddr_changed;
1169 ret = register_inetaddr_notifier(&drvr->inetaddr_notifier);
1170 if (ret)
1171 goto fail;
1172
1173 #if IS_ENABLED(CONFIG_IPV6)
1174 drvr->inet6addr_notifier.notifier_call = brcmf_inet6addr_changed;
1175 ret = register_inet6addr_notifier(&drvr->inet6addr_notifier);
1176 if (ret) {
1177 unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
1178 goto fail;
1179 }
1180 #endif
1181 #endif
1182
1183 INIT_WORK(&drvr->bus_reset, brcmf_core_bus_reset);
1184
1185
1186 brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
1187 debugfs_create_file("reset", 0600, brcmf_debugfs_get_devdir(drvr), drvr,
1188 &bus_reset_fops);
1189 brcmf_feat_debugfs_create(drvr);
1190 brcmf_proto_debugfs_create(drvr);
1191 brcmf_bus_debugfs_create(bus_if);
1192
1193 return 0;
1194
1195 fail:
1196 bphy_err(drvr, "failed: %d\n", ret);
1197 if (drvr->config) {
1198 brcmf_cfg80211_detach(drvr->config);
1199 drvr->config = NULL;
1200 }
1201 brcmf_net_detach(ifp->ndev, false);
1202 if (p2p_ifp)
1203 brcmf_net_detach(p2p_ifp->ndev, false);
1204 drvr->iflist[0] = NULL;
1205 drvr->iflist[1] = NULL;
1206 if (drvr->settings->ignore_probe_fail)
1207 ret = 0;
1208
1209 return ret;
1210 }
1211
1212 int brcmf_alloc(struct device *dev, struct brcmf_mp_device *settings)
1213 {
1214 struct wiphy *wiphy;
1215 struct cfg80211_ops *ops;
1216 struct brcmf_pub *drvr = NULL;
1217
1218 brcmf_dbg(TRACE, "Enter\n");
1219
1220 ops = brcmf_cfg80211_get_ops(settings);
1221 if (!ops)
1222 return -ENOMEM;
1223
1224 wiphy = wiphy_new(ops, sizeof(*drvr));
1225 if (!wiphy) {
1226 kfree(ops);
1227 return -ENOMEM;
1228 }
1229
1230 set_wiphy_dev(wiphy, dev);
1231 drvr = wiphy_priv(wiphy);
1232 drvr->wiphy = wiphy;
1233 drvr->ops = ops;
1234 drvr->bus_if = dev_get_drvdata(dev);
1235 drvr->bus_if->drvr = drvr;
1236 drvr->settings = settings;
1237
1238 return 0;
1239 }
1240
1241 int brcmf_attach(struct device *dev)
1242 {
1243 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1244 struct brcmf_pub *drvr = bus_if->drvr;
1245 int ret = 0;
1246 int i;
1247
1248 brcmf_dbg(TRACE, "Enter\n");
1249
1250 for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
1251 drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
1252
1253 mutex_init(&drvr->proto_block);
1254
1255
1256 drvr->hdrlen = 0;
1257
1258
1259 ret = brcmf_proto_attach(drvr);
1260 if (ret != 0) {
1261 bphy_err(drvr, "brcmf_prot_attach failed\n");
1262 goto fail;
1263 }
1264
1265
1266 brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG,
1267 brcmf_psm_watchdog_notify);
1268
1269
1270 brcmf_fweh_attach(drvr);
1271
1272 ret = brcmf_bus_started(drvr, drvr->ops);
1273 if (ret != 0) {
1274 bphy_err(drvr, "dongle is not responding: err=%d\n", ret);
1275 goto fail;
1276 }
1277
1278 return 0;
1279
1280 fail:
1281 brcmf_detach(dev);
1282
1283 return ret;
1284 }
1285
1286 void brcmf_bus_add_txhdrlen(struct device *dev, uint len)
1287 {
1288 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1289 struct brcmf_pub *drvr = bus_if->drvr;
1290
1291 if (drvr) {
1292 drvr->hdrlen += len;
1293 }
1294 }
1295
1296 void brcmf_dev_reset(struct device *dev)
1297 {
1298 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1299 struct brcmf_pub *drvr = bus_if->drvr;
1300
1301 if (drvr == NULL)
1302 return;
1303
1304 if (drvr->iflist[0])
1305 brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
1306 }
1307
1308 void brcmf_dev_coredump(struct device *dev)
1309 {
1310 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1311
1312 if (brcmf_debug_create_memdump(bus_if, NULL, 0) < 0)
1313 brcmf_dbg(TRACE, "failed to create coredump\n");
1314 }
1315
1316 void brcmf_fw_crashed(struct device *dev)
1317 {
1318 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1319 struct brcmf_pub *drvr = bus_if->drvr;
1320
1321 bphy_err(drvr, "Firmware has halted or crashed\n");
1322
1323 brcmf_dev_coredump(dev);
1324
1325 schedule_work(&drvr->bus_reset);
1326 }
1327
1328 void brcmf_detach(struct device *dev)
1329 {
1330 s32 i;
1331 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1332 struct brcmf_pub *drvr = bus_if->drvr;
1333
1334 brcmf_dbg(TRACE, "Enter\n");
1335
1336 if (drvr == NULL)
1337 return;
1338
1339 #ifdef CONFIG_INET
1340 unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
1341 #endif
1342
1343 #if IS_ENABLED(CONFIG_IPV6)
1344 unregister_inet6addr_notifier(&drvr->inet6addr_notifier);
1345 #endif
1346
1347 brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
1348 brcmf_bus_stop(drvr->bus_if);
1349
1350 brcmf_fweh_detach(drvr);
1351 brcmf_proto_detach(drvr);
1352
1353 if (drvr->mon_if) {
1354 brcmf_net_detach(drvr->mon_if->ndev, false);
1355 drvr->mon_if = NULL;
1356 }
1357
1358
1359 for (i = BRCMF_MAX_IFS - 1; i > -1; i--) {
1360 if (drvr->iflist[i])
1361 brcmf_del_if(drvr, drvr->iflist[i]->bsscfgidx, false);
1362 }
1363
1364 if (drvr->config) {
1365 brcmf_p2p_detach(&drvr->config->p2p);
1366 brcmf_cfg80211_detach(drvr->config);
1367 drvr->config = NULL;
1368 }
1369 }
1370
1371 void brcmf_free(struct device *dev)
1372 {
1373 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1374 struct brcmf_pub *drvr = bus_if->drvr;
1375
1376 if (!drvr)
1377 return;
1378
1379 bus_if->drvr = NULL;
1380
1381 kfree(drvr->ops);
1382
1383 wiphy_free(drvr->wiphy);
1384 }
1385
1386 s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len)
1387 {
1388 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1389 struct brcmf_if *ifp = bus_if->drvr->iflist[0];
1390
1391 return brcmf_fil_iovar_data_set(ifp, name, data, len);
1392 }
1393
1394 static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
1395 {
1396 return atomic_read(&ifp->pend_8021x_cnt);
1397 }
1398
1399 int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp)
1400 {
1401 struct brcmf_pub *drvr = ifp->drvr;
1402 int err;
1403
1404 err = wait_event_timeout(ifp->pend_8021x_wait,
1405 !brcmf_get_pend_8021x_cnt(ifp),
1406 MAX_WAIT_FOR_8021X_TX);
1407
1408 if (!err)
1409 bphy_err(drvr, "Timed out waiting for no pending 802.1x packets\n");
1410
1411 return !err;
1412 }
1413
1414 void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state)
1415 {
1416 struct brcmf_pub *drvr = bus->drvr;
1417 struct net_device *ndev;
1418 int ifidx;
1419
1420 brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state);
1421
1422 if (!drvr) {
1423 brcmf_dbg(INFO, "ignoring transition, bus not attached yet\n");
1424 return;
1425 }
1426
1427 bus->state = state;
1428
1429 if (state == BRCMF_BUS_UP) {
1430 for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
1431 if ((drvr->iflist[ifidx]) &&
1432 (drvr->iflist[ifidx]->ndev)) {
1433 ndev = drvr->iflist[ifidx]->ndev;
1434 if (netif_queue_stopped(ndev))
1435 netif_wake_queue(ndev);
1436 }
1437 }
1438 }
1439 }
1440
1441 static void brcmf_driver_register(struct work_struct *work)
1442 {
1443 #ifdef CONFIG_BRCMFMAC_SDIO
1444 brcmf_sdio_register();
1445 #endif
1446 #ifdef CONFIG_BRCMFMAC_USB
1447 brcmf_usb_register();
1448 #endif
1449 #ifdef CONFIG_BRCMFMAC_PCIE
1450 brcmf_pcie_register();
1451 #endif
1452 }
1453 static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register);
1454
1455 int __init brcmf_core_init(void)
1456 {
1457 if (!schedule_work(&brcmf_driver_work))
1458 return -EBUSY;
1459
1460 return 0;
1461 }
1462
1463 void __exit brcmf_core_exit(void)
1464 {
1465 cancel_work_sync(&brcmf_driver_work);
1466
1467 #ifdef CONFIG_BRCMFMAC_SDIO
1468 brcmf_sdio_exit();
1469 #endif
1470 #ifdef CONFIG_BRCMFMAC_USB
1471 brcmf_usb_exit();
1472 #endif
1473 #ifdef CONFIG_BRCMFMAC_PCIE
1474 brcmf_pcie_exit();
1475 #endif
1476 }
1477