2 * Copyright (c) 2010 Broadcom Corporation
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.
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.
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>
25 #include <brcmu_utils.h>
26 #include <brcmu_wifi.h>
31 #include "fwil_types.h"
41 #define MAX_WAIT_FOR_8021X_TX msecs_to_jiffies(950)
43 #define BRCMF_BSSIDX_INVALID -1
45 char *brcmf_ifname(struct brcmf_if *ifp)
51 return ifp->ndev->name;
56 struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx)
61 if (ifidx < 0 || ifidx >= BRCMF_MAX_IFS) {
62 brcmf_err("ifidx %d out of range\n", ifidx);
67 bsscfgidx = drvr->if2bss[ifidx];
69 ifp = drvr->iflist[bsscfgidx];
74 static void _brcmf_set_multicast_list(struct work_struct *work)
77 struct net_device *ndev;
78 struct netdev_hw_addr *ha;
85 ifp = container_of(work, struct brcmf_if, multicast_work);
87 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
91 /* Determine initial value of allmulti flag */
92 cmd_value = (ndev->flags & IFF_ALLMULTI) ? true : false;
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);
102 cnt_le = cpu_to_le32(cnt);
103 memcpy(bufp, &cnt_le, sizeof(cnt_le));
104 bufp += sizeof(cnt_le);
106 netdev_for_each_mc_addr(ha, ndev) {
109 memcpy(bufp, ha->addr, ETH_ALEN);
114 err = brcmf_fil_iovar_data_set(ifp, "mcast_list", buf, buflen);
116 brcmf_err("Setting mcast_list failed, %d\n", err);
117 cmd_value = cnt ? true : cmd_value;
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...
127 err = brcmf_fil_iovar_int_set(ifp, "allmulti", cmd_value);
129 brcmf_err("Setting allmulti failed, %d\n", err);
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);
135 brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
139 #if IS_ENABLED(CONFIG_IPV6)
140 static void _brcmf_update_ndtable(struct work_struct *work)
142 struct brcmf_if *ifp;
145 ifp = container_of(work, struct brcmf_if, ndoffload_work);
147 /* clear the table in firmware */
148 ret = brcmf_fil_iovar_data_set(ifp, "nd_hostip_clear", NULL, 0);
150 brcmf_dbg(TRACE, "fail to clear nd ip table err:%d\n", ret);
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));
159 brcmf_err("add nd ip err %d\n", ret);
163 static void _brcmf_update_ndtable(struct work_struct *work)
168 static int brcmf_netdev_set_mac_address(struct net_device *ndev, void *addr)
170 struct brcmf_if *ifp = netdev_priv(ndev);
171 struct sockaddr *sa = (struct sockaddr *)addr;
174 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
176 err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", sa->sa_data,
179 brcmf_err("Setting cur_etheraddr failed, %d\n", err);
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);
188 static void brcmf_netdev_set_multicast_list(struct net_device *ndev)
190 struct brcmf_if *ifp = netdev_priv(ndev);
192 schedule_work(&ifp->multicast_work);
195 static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
196 struct net_device *ndev)
199 struct brcmf_if *ifp = netdev_priv(ndev);
200 struct brcmf_pub *drvr = ifp->drvr;
203 brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
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);
214 /* Make sure there's enough writable headroom*/
215 ret = skb_cow_head(skb, drvr->hdrlen);
217 brcmf_err("%s: skb_cow_head failed\n",
223 /* validate length for ether packet */
224 if (skb->len < sizeof(*eh)) {
230 eh = (struct ethhdr *)(skb->data);
232 if (eh->h_proto == htons(ETH_P_PAE))
233 atomic_inc(&ifp->pend_8021x_cnt);
235 ret = brcmf_fws_process_skb(ifp, skb);
239 ifp->stats.tx_dropped++;
241 ifp->stats.tx_packets++;
242 ifp->stats.tx_bytes += skb->len;
245 /* Return ok: we always eat the packet */
249 void brcmf_txflowblock_if(struct brcmf_if *ifp,
250 enum brcmf_netif_stop_reason reason, bool state)
254 if (!ifp || !ifp->ndev)
257 brcmf_dbg(TRACE, "enter: bsscfgidx=%d stop=0x%X reason=%d state=%d\n",
258 ifp->bsscfgidx, ifp->netif_stop, reason, state);
260 spin_lock_irqsave(&ifp->netif_stop_lock, flags);
262 if (!ifp->netif_stop)
263 netif_stop_queue(ifp->ndev);
264 ifp->netif_stop |= reason;
266 ifp->netif_stop &= ~reason;
267 if (!ifp->netif_stop)
268 netif_wake_queue(ifp->ndev);
270 spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
273 void brcmf_txflowblock(struct device *dev, bool state)
275 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
276 struct brcmf_pub *drvr = bus_if->drvr;
278 brcmf_dbg(TRACE, "Enter\n");
280 brcmf_fws_bus_blocked(drvr, state);
283 void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
285 if (skb->pkt_type == PACKET_MULTICAST)
286 ifp->stats.multicast++;
288 if (!(ifp->ndev->flags & IFF_UP)) {
289 brcmu_pkt_buf_free_skb(skb);
293 ifp->stats.rx_bytes += skb->len;
294 ifp->stats.rx_packets++;
296 brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol));
300 /* If the receive is not processed inside an ISR,
301 * the softirqd must be woken explicitly to service
302 * the NET_RX_SOFTIRQ. This is handled by netif_rx_ni().
307 static int brcmf_rx_hdrpull(struct brcmf_pub *drvr, struct sk_buff *skb,
308 struct brcmf_if **ifp)
312 /* process and remove protocol-specific header */
313 ret = brcmf_proto_hdrpull(drvr, true, skb, ifp);
315 if (ret || !(*ifp) || !(*ifp)->ndev) {
316 if (ret != -ENODATA && *ifp)
317 (*ifp)->stats.rx_errors++;
318 brcmu_pkt_buf_free_skb(skb);
322 skb->protocol = eth_type_trans(skb, (*ifp)->ndev);
326 void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event)
328 struct brcmf_if *ifp;
329 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
330 struct brcmf_pub *drvr = bus_if->drvr;
332 brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
334 if (brcmf_rx_hdrpull(drvr, skb, &ifp))
337 if (brcmf_proto_is_reorder_skb(skb)) {
338 brcmf_proto_rxreorder(ifp, skb);
340 /* Process special event packets */
342 brcmf_fweh_process_skb(ifp->drvr, skb,
343 BCMILCP_SUBTYPE_VENDOR_LONG);
345 brcmf_netif_rx(ifp, skb);
349 void brcmf_rx_event(struct device *dev, struct sk_buff *skb)
351 struct brcmf_if *ifp;
352 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
353 struct brcmf_pub *drvr = bus_if->drvr;
355 brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
357 if (brcmf_rx_hdrpull(drvr, skb, &ifp))
360 brcmf_fweh_process_skb(ifp->drvr, skb, 0);
361 brcmu_pkt_buf_free_skb(skb);
364 void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
369 eh = (struct ethhdr *)(txp->data);
370 type = ntohs(eh->h_proto);
372 if (type == ETH_P_PAE) {
373 atomic_dec(&ifp->pend_8021x_cnt);
374 if (waitqueue_active(&ifp->pend_8021x_wait))
375 wake_up(&ifp->pend_8021x_wait);
379 ifp->stats.tx_errors++;
381 brcmu_pkt_buf_free_skb(txp);
384 void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
386 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
387 struct brcmf_pub *drvr = bus_if->drvr;
388 struct brcmf_if *ifp;
390 /* await txstatus signal for firmware if active */
391 if (brcmf_fws_fc_active(drvr->fws)) {
393 brcmf_fws_bustxfail(drvr->fws, txp);
395 if (brcmf_proto_hdrpull(drvr, false, txp, &ifp))
396 brcmu_pkt_buf_free_skb(txp);
398 brcmf_txfinalize(ifp, txp, success);
402 static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
404 struct brcmf_if *ifp = netdev_priv(ndev);
406 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
411 static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
412 struct ethtool_drvinfo *info)
414 struct brcmf_if *ifp = netdev_priv(ndev);
415 struct brcmf_pub *drvr = ifp->drvr;
416 char drev[BRCMU_DOTREV_LEN] = "n/a";
418 if (drvr->revinfo.result == 0)
419 brcmu_dotrev_str(drvr->revinfo.driverrev, drev);
420 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
421 strlcpy(info->version, drev, sizeof(info->version));
422 strlcpy(info->fw_version, drvr->fwver, sizeof(info->fw_version));
423 strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
424 sizeof(info->bus_info));
427 static const struct ethtool_ops brcmf_ethtool_ops = {
428 .get_drvinfo = brcmf_ethtool_get_drvinfo,
431 static int brcmf_netdev_stop(struct net_device *ndev)
433 struct brcmf_if *ifp = netdev_priv(ndev);
435 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
437 brcmf_cfg80211_down(ndev);
439 brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear", NULL, 0);
441 brcmf_net_setcarrier(ifp, false);
446 static int brcmf_netdev_open(struct net_device *ndev)
448 struct brcmf_if *ifp = netdev_priv(ndev);
449 struct brcmf_pub *drvr = ifp->drvr;
450 struct brcmf_bus *bus_if = drvr->bus_if;
453 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
455 /* If bus is not ready, can't continue */
456 if (bus_if->state != BRCMF_BUS_UP) {
457 brcmf_err("failed bus is not ready\n");
461 atomic_set(&ifp->pend_8021x_cnt, 0);
463 /* Get current TOE mode from dongle */
464 if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
465 && (toe_ol & TOE_TX_CSUM_OL) != 0)
466 ndev->features |= NETIF_F_IP_CSUM;
468 ndev->features &= ~NETIF_F_IP_CSUM;
470 if (brcmf_cfg80211_up(ndev)) {
471 brcmf_err("failed to bring up cfg80211\n");
475 /* Clear, carrier, set when connected or AP mode. */
476 netif_carrier_off(ndev);
480 static const struct net_device_ops brcmf_netdev_ops_pri = {
481 .ndo_open = brcmf_netdev_open,
482 .ndo_stop = brcmf_netdev_stop,
483 .ndo_get_stats = brcmf_netdev_get_stats,
484 .ndo_start_xmit = brcmf_netdev_start_xmit,
485 .ndo_set_mac_address = brcmf_netdev_set_mac_address,
486 .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
489 int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
491 struct brcmf_pub *drvr = ifp->drvr;
492 struct net_device *ndev;
495 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
499 /* set appropriate operations */
500 ndev->netdev_ops = &brcmf_netdev_ops_pri;
502 ndev->needed_headroom += drvr->hdrlen;
503 ndev->ethtool_ops = &brcmf_ethtool_ops;
505 /* set the mac address */
506 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
508 INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
509 INIT_WORK(&ifp->ndoffload_work, _brcmf_update_ndtable);
512 err = register_netdevice(ndev);
514 err = register_netdev(ndev);
516 brcmf_err("couldn't register the net device\n");
520 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
524 drvr->iflist[ifp->bsscfgidx] = NULL;
525 ndev->netdev_ops = NULL;
530 static void brcmf_net_detach(struct net_device *ndev, bool rtnl_locked)
532 if (ndev->reg_state == NETREG_REGISTERED) {
534 unregister_netdevice(ndev);
536 unregister_netdev(ndev);
538 brcmf_cfg80211_free_netdev(ndev);
542 void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on)
544 struct net_device *ndev;
546 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d carrier=%d\n", ifp->bsscfgidx,
550 brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_DISCONNECTED, !on);
552 if (!netif_carrier_ok(ndev))
553 netif_carrier_on(ndev);
556 if (netif_carrier_ok(ndev))
557 netif_carrier_off(ndev);
561 static int brcmf_net_p2p_open(struct net_device *ndev)
563 brcmf_dbg(TRACE, "Enter\n");
565 return brcmf_cfg80211_up(ndev);
568 static int brcmf_net_p2p_stop(struct net_device *ndev)
570 brcmf_dbg(TRACE, "Enter\n");
572 return brcmf_cfg80211_down(ndev);
575 static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
576 struct net_device *ndev)
579 dev_kfree_skb_any(skb);
584 static const struct net_device_ops brcmf_netdev_ops_p2p = {
585 .ndo_open = brcmf_net_p2p_open,
586 .ndo_stop = brcmf_net_p2p_stop,
587 .ndo_start_xmit = brcmf_net_p2p_start_xmit
590 static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
592 struct net_device *ndev;
594 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
598 ndev->netdev_ops = &brcmf_netdev_ops_p2p;
600 /* set the mac address */
601 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
603 if (register_netdev(ndev) != 0) {
604 brcmf_err("couldn't register the p2p net device\n");
608 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
613 ifp->drvr->iflist[ifp->bsscfgidx] = NULL;
614 ndev->netdev_ops = NULL;
619 struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
620 bool is_p2pdev, const char *name, u8 *mac_addr)
622 struct brcmf_if *ifp;
623 struct net_device *ndev;
625 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx, ifidx);
627 ifp = drvr->iflist[bsscfgidx];
629 * Delete the existing interface before overwriting it
630 * in case we missed the BRCMF_E_IF_DEL event.
634 brcmf_err("ERROR: netdev:%s already exists\n",
636 netif_stop_queue(ifp->ndev);
637 brcmf_net_detach(ifp->ndev, false);
638 drvr->iflist[bsscfgidx] = NULL;
640 brcmf_dbg(INFO, "netdev:%s ignore IF event\n",
642 return ERR_PTR(-EINVAL);
646 if (!drvr->settings->p2p_enable && is_p2pdev) {
647 /* this is P2P_DEVICE interface */
648 brcmf_dbg(INFO, "allocate non-netdev interface\n");
649 ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
651 return ERR_PTR(-ENOMEM);
653 brcmf_dbg(INFO, "allocate netdev interface\n");
654 /* Allocate netdev, including space for private structure */
655 ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name,
656 NET_NAME_UNKNOWN, ether_setup);
658 return ERR_PTR(-ENOMEM);
660 ndev->destructor = brcmf_cfg80211_free_netdev;
661 ifp = netdev_priv(ndev);
663 /* store mapping ifidx to bsscfgidx */
664 if (drvr->if2bss[ifidx] == BRCMF_BSSIDX_INVALID)
665 drvr->if2bss[ifidx] = bsscfgidx;
669 drvr->iflist[bsscfgidx] = ifp;
671 ifp->bsscfgidx = bsscfgidx;
673 init_waitqueue_head(&ifp->pend_8021x_wait);
674 spin_lock_init(&ifp->netif_stop_lock);
676 if (mac_addr != NULL)
677 memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
679 brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
680 current->pid, name, ifp->mac_addr);
685 static void brcmf_del_if(struct brcmf_pub *drvr, s32 bsscfgidx,
688 struct brcmf_if *ifp;
691 ifp = drvr->iflist[bsscfgidx];
693 brcmf_err("Null interface, bsscfgidx=%d\n", bsscfgidx);
696 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx,
701 if (bsscfgidx == 0) {
702 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
704 brcmf_netdev_stop(ifp->ndev);
708 netif_stop_queue(ifp->ndev);
711 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
712 cancel_work_sync(&ifp->multicast_work);
713 cancel_work_sync(&ifp->ndoffload_work);
715 brcmf_net_detach(ifp->ndev, rtnl_locked);
717 /* Only p2p device interfaces which get dynamically created
718 * end up here. In this case the p2p module should be informed
719 * about the removal of the interface within the firmware. If
720 * not then p2p commands towards the firmware will cause some
721 * serious troublesome side effects. The p2p module will clean
722 * up the ifp if needed.
724 brcmf_p2p_ifp_removed(ifp, rtnl_locked);
728 drvr->iflist[bsscfgidx] = NULL;
729 if (drvr->if2bss[ifidx] == bsscfgidx)
730 drvr->if2bss[ifidx] = BRCMF_BSSIDX_INVALID;
733 void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked)
735 if (!ifp || WARN_ON(ifp->drvr->iflist[ifp->bsscfgidx] != ifp))
737 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", ifp->bsscfgidx,
739 brcmf_fws_del_interface(ifp);
740 brcmf_del_if(ifp->drvr, ifp->bsscfgidx, rtnl_locked);
744 #define ARPOL_MAX_ENTRIES 8
745 static int brcmf_inetaddr_changed(struct notifier_block *nb,
746 unsigned long action, void *data)
748 struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
750 struct in_ifaddr *ifa = data;
751 struct net_device *ndev = ifa->ifa_dev->dev;
752 struct brcmf_if *ifp;
755 __be32 addr_table[ARPOL_MAX_ENTRIES] = {0};
757 /* Find out if the notification is meant for us */
758 for (idx = 0; idx < BRCMF_MAX_IFS; idx++) {
759 ifp = drvr->iflist[idx];
760 if (ifp && ifp->ndev == ndev)
762 if (idx == BRCMF_MAX_IFS - 1)
766 /* check if arp offload is supported */
767 ret = brcmf_fil_iovar_int_get(ifp, "arpoe", &val);
771 /* old version only support primary index */
772 ret = brcmf_fil_iovar_int_get(ifp, "arp_version", &val);
776 ifp = drvr->iflist[0];
778 /* retrieve the table from firmware */
779 ret = brcmf_fil_iovar_data_get(ifp, "arp_hostip", addr_table,
782 brcmf_err("fail to get arp ip table err:%d\n", ret);
786 for (i = 0; i < ARPOL_MAX_ENTRIES; i++)
787 if (ifa->ifa_address == addr_table[i])
792 if (i == ARPOL_MAX_ENTRIES) {
793 brcmf_dbg(TRACE, "add %pI4 to arp table\n",
795 /* set it directly */
796 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
797 &ifa->ifa_address, sizeof(ifa->ifa_address));
799 brcmf_err("add arp ip err %d\n", ret);
803 if (i < ARPOL_MAX_ENTRIES) {
805 brcmf_dbg(TRACE, "remove %pI4 from arp table\n",
807 /* clear the table in firmware */
808 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear",
811 brcmf_err("fail to clear arp ip table err:%d\n",
815 for (i = 0; i < ARPOL_MAX_ENTRIES; i++) {
816 if (addr_table[i] == 0)
818 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
820 sizeof(addr_table[i]));
822 brcmf_err("add arp ip err %d\n",
835 #if IS_ENABLED(CONFIG_IPV6)
836 static int brcmf_inet6addr_changed(struct notifier_block *nb,
837 unsigned long action, void *data)
839 struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
841 struct inet6_ifaddr *ifa = data;
842 struct brcmf_if *ifp;
844 struct in6_addr *table;
846 /* Only handle primary interface */
847 ifp = drvr->iflist[0];
850 if (ifp->ndev != ifa->idev->dev)
853 table = ifp->ipv6_addr_tbl;
854 for (i = 0; i < NDOL_MAX_ENTRIES; i++)
855 if (ipv6_addr_equal(&ifa->addr, &table[i]))
860 if (i == NDOL_MAX_ENTRIES) {
861 if (ifp->ipv6addr_idx < NDOL_MAX_ENTRIES) {
862 table[ifp->ipv6addr_idx++] = ifa->addr;
864 for (i = 0; i < NDOL_MAX_ENTRIES - 1; i++)
865 table[i] = table[i + 1];
866 table[NDOL_MAX_ENTRIES - 1] = ifa->addr;
871 if (i < NDOL_MAX_ENTRIES) {
872 for (; i < ifp->ipv6addr_idx - 1; i++)
873 table[i] = table[i + 1];
874 memset(&table[i], 0, sizeof(table[i]));
882 schedule_work(&ifp->ndoffload_work);
888 int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings)
890 struct brcmf_pub *drvr = NULL;
894 brcmf_dbg(TRACE, "Enter\n");
896 /* Allocate primary brcmf_info */
897 drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC);
901 for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
902 drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
904 mutex_init(&drvr->proto_block);
906 /* Link to bus module */
908 drvr->bus_if = dev_get_drvdata(dev);
909 drvr->bus_if->drvr = drvr;
910 drvr->settings = settings;
912 /* attach debug facilities */
913 brcmf_debug_attach(drvr);
915 /* Attach and link in the protocol */
916 ret = brcmf_proto_attach(drvr);
918 brcmf_err("brcmf_prot_attach failed\n");
922 /* attach firmware event handler */
923 brcmf_fweh_attach(drvr);
933 static int brcmf_revinfo_read(struct seq_file *s, void *data)
935 struct brcmf_bus *bus_if = dev_get_drvdata(s->private);
936 struct brcmf_rev_info *ri = &bus_if->drvr->revinfo;
937 char drev[BRCMU_DOTREV_LEN];
938 char brev[BRCMU_BOARDREV_LEN];
940 seq_printf(s, "vendorid: 0x%04x\n", ri->vendorid);
941 seq_printf(s, "deviceid: 0x%04x\n", ri->deviceid);
942 seq_printf(s, "radiorev: %s\n", brcmu_dotrev_str(ri->radiorev, drev));
943 seq_printf(s, "chipnum: %u (%x)\n", ri->chipnum, ri->chipnum);
944 seq_printf(s, "chiprev: %u\n", ri->chiprev);
945 seq_printf(s, "chippkg: %u\n", ri->chippkg);
946 seq_printf(s, "corerev: %u\n", ri->corerev);
947 seq_printf(s, "boardid: 0x%04x\n", ri->boardid);
948 seq_printf(s, "boardvendor: 0x%04x\n", ri->boardvendor);
949 seq_printf(s, "boardrev: %s\n", brcmu_boardrev_str(ri->boardrev, brev));
950 seq_printf(s, "driverrev: %s\n", brcmu_dotrev_str(ri->driverrev, drev));
951 seq_printf(s, "ucoderev: %u\n", ri->ucoderev);
952 seq_printf(s, "bus: %u\n", ri->bus);
953 seq_printf(s, "phytype: %u\n", ri->phytype);
954 seq_printf(s, "phyrev: %u\n", ri->phyrev);
955 seq_printf(s, "anarev: %u\n", ri->anarev);
956 seq_printf(s, "nvramrev: %08x\n", ri->nvramrev);
961 int brcmf_bus_start(struct device *dev)
964 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
965 struct brcmf_pub *drvr = bus_if->drvr;
966 struct brcmf_if *ifp;
967 struct brcmf_if *p2p_ifp;
969 brcmf_dbg(TRACE, "\n");
971 /* add primary networking interface */
972 ifp = brcmf_add_if(drvr, 0, 0, false, "wlan%d", NULL);
978 /* signal bus ready */
979 brcmf_bus_change_state(bus_if, BRCMF_BUS_UP);
981 /* Bus is ready, do any initialization */
982 ret = brcmf_c_preinit_dcmds(ifp);
986 brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);
988 /* assure we have chipid before feature attach */
990 bus_if->chip = drvr->revinfo.chipnum;
991 bus_if->chiprev = drvr->revinfo.chiprev;
992 brcmf_dbg(INFO, "firmware revinfo: chip %x (%d) rev %d\n",
993 bus_if->chip, bus_if->chip, bus_if->chiprev);
995 brcmf_feat_attach(drvr);
997 ret = brcmf_fws_init(drvr);
1001 brcmf_fws_add_interface(ifp);
1003 drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev,
1004 drvr->settings->p2p_enable);
1005 if (drvr->config == NULL) {
1010 ret = brcmf_net_attach(ifp, false);
1012 if ((!ret) && (drvr->settings->p2p_enable)) {
1013 p2p_ifp = drvr->iflist[1];
1015 ret = brcmf_net_p2p_attach(p2p_ifp);
1022 drvr->inetaddr_notifier.notifier_call = brcmf_inetaddr_changed;
1023 ret = register_inetaddr_notifier(&drvr->inetaddr_notifier);
1027 #if IS_ENABLED(CONFIG_IPV6)
1028 drvr->inet6addr_notifier.notifier_call = brcmf_inet6addr_changed;
1029 ret = register_inet6addr_notifier(&drvr->inet6addr_notifier);
1031 unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
1035 #endif /* CONFIG_INET */
1040 brcmf_err("failed: %d\n", ret);
1042 brcmf_cfg80211_detach(drvr->config);
1043 drvr->config = NULL;
1046 brcmf_fws_del_interface(ifp);
1047 brcmf_fws_deinit(drvr);
1049 brcmf_net_detach(ifp->ndev, false);
1051 brcmf_net_detach(p2p_ifp->ndev, false);
1052 drvr->iflist[0] = NULL;
1053 drvr->iflist[1] = NULL;
1054 if (drvr->settings->ignore_probe_fail)
1060 void brcmf_bus_add_txhdrlen(struct device *dev, uint len)
1062 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1063 struct brcmf_pub *drvr = bus_if->drvr;
1066 drvr->hdrlen += len;
1070 static void brcmf_bus_detach(struct brcmf_pub *drvr)
1072 brcmf_dbg(TRACE, "Enter\n");
1075 /* Stop the bus module */
1076 brcmf_bus_stop(drvr->bus_if);
1080 void brcmf_dev_reset(struct device *dev)
1082 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1083 struct brcmf_pub *drvr = bus_if->drvr;
1088 if (drvr->iflist[0])
1089 brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
1092 void brcmf_detach(struct device *dev)
1095 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1096 struct brcmf_pub *drvr = bus_if->drvr;
1098 brcmf_dbg(TRACE, "Enter\n");
1104 unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
1107 #if IS_ENABLED(CONFIG_IPV6)
1108 unregister_inet6addr_notifier(&drvr->inet6addr_notifier);
1111 /* stop firmware event handling */
1112 brcmf_fweh_detach(drvr);
1114 brcmf_p2p_detach(&drvr->config->p2p);
1116 brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
1118 /* make sure primary interface removed last */
1119 for (i = BRCMF_MAX_IFS-1; i > -1; i--)
1120 brcmf_remove_interface(drvr->iflist[i], false);
1122 brcmf_cfg80211_detach(drvr->config);
1124 brcmf_fws_deinit(drvr);
1126 brcmf_bus_detach(drvr);
1128 brcmf_proto_detach(drvr);
1130 brcmf_debug_detach(drvr);
1131 bus_if->drvr = NULL;
1135 s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len)
1137 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1138 struct brcmf_if *ifp = bus_if->drvr->iflist[0];
1140 return brcmf_fil_iovar_data_set(ifp, name, data, len);
1143 static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
1145 return atomic_read(&ifp->pend_8021x_cnt);
1148 int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp)
1152 err = wait_event_timeout(ifp->pend_8021x_wait,
1153 !brcmf_get_pend_8021x_cnt(ifp),
1154 MAX_WAIT_FOR_8021X_TX);
1157 brcmf_err("Timed out waiting for no pending 802.1x packets\n");
1162 void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state)
1164 struct brcmf_pub *drvr = bus->drvr;
1165 struct net_device *ndev;
1168 brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state);
1171 if (state == BRCMF_BUS_UP) {
1172 for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
1173 if ((drvr->iflist[ifidx]) &&
1174 (drvr->iflist[ifidx]->ndev)) {
1175 ndev = drvr->iflist[ifidx]->ndev;
1176 if (netif_queue_stopped(ndev))
1177 netif_wake_queue(ndev);
1183 static void brcmf_driver_register(struct work_struct *work)
1185 #ifdef CONFIG_BRCMFMAC_SDIO
1186 brcmf_sdio_register();
1188 #ifdef CONFIG_BRCMFMAC_USB
1189 brcmf_usb_register();
1191 #ifdef CONFIG_BRCMFMAC_PCIE
1192 brcmf_pcie_register();
1195 static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register);
1197 int __init brcmf_core_init(void)
1199 if (!schedule_work(&brcmf_driver_work))
1205 void __exit brcmf_core_exit(void)
1207 cancel_work_sync(&brcmf_driver_work);
1209 #ifdef CONFIG_BRCMFMAC_SDIO
1212 #ifdef CONFIG_BRCMFMAC_USB
1215 #ifdef CONFIG_BRCMFMAC_PCIE