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;
204 brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
206 /* Can the device send data? */
207 if (drvr->bus_if->state != BRCMF_BUS_UP) {
208 brcmf_err("xmit rejected state=%d\n", drvr->bus_if->state);
209 netif_stop_queue(ndev);
215 /* Make sure there's enough writeable headroom */
216 if (skb_headroom(skb) < drvr->hdrlen || skb_header_cloned(skb)) {
217 head_delta = max_t(int, drvr->hdrlen - skb_headroom(skb), 0);
219 brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n",
220 brcmf_ifname(ifp), head_delta);
221 atomic_inc(&drvr->bus_if->stats.pktcowed);
222 ret = pskb_expand_head(skb, ALIGN(head_delta, NET_SKB_PAD), 0,
225 brcmf_err("%s: failed to expand headroom\n",
227 atomic_inc(&drvr->bus_if->stats.pktcow_failed);
232 /* validate length for ether packet */
233 if (skb->len < sizeof(*eh)) {
239 eh = (struct ethhdr *)(skb->data);
241 if (eh->h_proto == htons(ETH_P_PAE))
242 atomic_inc(&ifp->pend_8021x_cnt);
244 /* determine the priority */
245 if ((skb->priority == 0) || (skb->priority > 7))
246 skb->priority = cfg80211_classify8021d(skb, NULL);
248 ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb);
250 brcmf_txfinalize(ifp, skb, false);
254 ndev->stats.tx_dropped++;
256 ndev->stats.tx_packets++;
257 ndev->stats.tx_bytes += skb->len;
260 /* Return ok: we always eat the packet */
264 void brcmf_txflowblock_if(struct brcmf_if *ifp,
265 enum brcmf_netif_stop_reason reason, bool state)
269 if (!ifp || !ifp->ndev)
272 brcmf_dbg(TRACE, "enter: bsscfgidx=%d stop=0x%X reason=%d state=%d\n",
273 ifp->bsscfgidx, ifp->netif_stop, reason, state);
275 spin_lock_irqsave(&ifp->netif_stop_lock, flags);
277 if (!ifp->netif_stop)
278 netif_stop_queue(ifp->ndev);
279 ifp->netif_stop |= reason;
281 ifp->netif_stop &= ~reason;
282 if (!ifp->netif_stop)
283 netif_wake_queue(ifp->ndev);
285 spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
288 void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
290 if (skb->pkt_type == PACKET_MULTICAST)
291 ifp->ndev->stats.multicast++;
293 if (!(ifp->ndev->flags & IFF_UP)) {
294 brcmu_pkt_buf_free_skb(skb);
298 ifp->ndev->stats.rx_bytes += skb->len;
299 ifp->ndev->stats.rx_packets++;
301 brcmf_dbg(DATA, "rx proto=0x%X\n", ntohs(skb->protocol));
305 /* If the receive is not processed inside an ISR,
306 * the softirqd must be woken explicitly to service
307 * the NET_RX_SOFTIRQ. This is handled by netif_rx_ni().
312 static int brcmf_rx_hdrpull(struct brcmf_pub *drvr, struct sk_buff *skb,
313 struct brcmf_if **ifp)
317 /* process and remove protocol-specific header */
318 ret = brcmf_proto_hdrpull(drvr, true, skb, ifp);
320 if (ret || !(*ifp) || !(*ifp)->ndev) {
321 if (ret != -ENODATA && *ifp && (*ifp)->ndev)
322 (*ifp)->ndev->stats.rx_errors++;
323 brcmu_pkt_buf_free_skb(skb);
327 skb->protocol = eth_type_trans(skb, (*ifp)->ndev);
331 void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event)
333 struct brcmf_if *ifp;
334 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
335 struct brcmf_pub *drvr = bus_if->drvr;
337 brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
339 if (brcmf_rx_hdrpull(drvr, skb, &ifp))
342 if (brcmf_proto_is_reorder_skb(skb)) {
343 brcmf_proto_rxreorder(ifp, skb);
345 /* Process special event packets */
347 brcmf_fweh_process_skb(ifp->drvr, skb,
348 BCMILCP_SUBTYPE_VENDOR_LONG);
350 brcmf_netif_rx(ifp, skb);
354 void brcmf_rx_event(struct device *dev, struct sk_buff *skb)
356 struct brcmf_if *ifp;
357 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
358 struct brcmf_pub *drvr = bus_if->drvr;
360 brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
362 if (brcmf_rx_hdrpull(drvr, skb, &ifp))
365 brcmf_fweh_process_skb(ifp->drvr, skb, 0);
366 brcmu_pkt_buf_free_skb(skb);
369 void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success)
374 eh = (struct ethhdr *)(txp->data);
375 type = ntohs(eh->h_proto);
377 if (type == ETH_P_PAE) {
378 atomic_dec(&ifp->pend_8021x_cnt);
379 if (waitqueue_active(&ifp->pend_8021x_wait))
380 wake_up(&ifp->pend_8021x_wait);
384 ifp->ndev->stats.tx_errors++;
386 brcmu_pkt_buf_free_skb(txp);
389 static void brcmf_ethtool_get_drvinfo(struct net_device *ndev,
390 struct ethtool_drvinfo *info)
392 struct brcmf_if *ifp = netdev_priv(ndev);
393 struct brcmf_pub *drvr = ifp->drvr;
394 char drev[BRCMU_DOTREV_LEN] = "n/a";
396 if (drvr->revinfo.result == 0)
397 brcmu_dotrev_str(drvr->revinfo.driverrev, drev);
398 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
399 strlcpy(info->version, drev, sizeof(info->version));
400 strlcpy(info->fw_version, drvr->fwver, sizeof(info->fw_version));
401 strlcpy(info->bus_info, dev_name(drvr->bus_if->dev),
402 sizeof(info->bus_info));
405 static const struct ethtool_ops brcmf_ethtool_ops = {
406 .get_drvinfo = brcmf_ethtool_get_drvinfo,
409 static int brcmf_netdev_stop(struct net_device *ndev)
411 struct brcmf_if *ifp = netdev_priv(ndev);
413 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
415 brcmf_cfg80211_down(ndev);
417 brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear", NULL, 0);
419 brcmf_net_setcarrier(ifp, false);
424 static int brcmf_netdev_open(struct net_device *ndev)
426 struct brcmf_if *ifp = netdev_priv(ndev);
427 struct brcmf_pub *drvr = ifp->drvr;
428 struct brcmf_bus *bus_if = drvr->bus_if;
431 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
433 /* If bus is not ready, can't continue */
434 if (bus_if->state != BRCMF_BUS_UP) {
435 brcmf_err("failed bus is not ready\n");
439 atomic_set(&ifp->pend_8021x_cnt, 0);
441 /* Get current TOE mode from dongle */
442 if (brcmf_fil_iovar_int_get(ifp, "toe_ol", &toe_ol) >= 0
443 && (toe_ol & TOE_TX_CSUM_OL) != 0)
444 ndev->features |= NETIF_F_IP_CSUM;
446 ndev->features &= ~NETIF_F_IP_CSUM;
448 if (brcmf_cfg80211_up(ndev)) {
449 brcmf_err("failed to bring up cfg80211\n");
453 /* Clear, carrier, set when connected or AP mode. */
454 netif_carrier_off(ndev);
458 static const struct net_device_ops brcmf_netdev_ops_pri = {
459 .ndo_open = brcmf_netdev_open,
460 .ndo_stop = brcmf_netdev_stop,
461 .ndo_start_xmit = brcmf_netdev_start_xmit,
462 .ndo_set_mac_address = brcmf_netdev_set_mac_address,
463 .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
466 int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
468 struct brcmf_pub *drvr = ifp->drvr;
469 struct net_device *ndev;
472 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
476 /* set appropriate operations */
477 ndev->netdev_ops = &brcmf_netdev_ops_pri;
479 ndev->needed_headroom += drvr->hdrlen;
480 ndev->ethtool_ops = &brcmf_ethtool_ops;
482 /* set the mac address & netns */
483 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
484 dev_net_set(ndev, wiphy_net(cfg_to_wiphy(drvr->config)));
486 INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list);
487 INIT_WORK(&ifp->ndoffload_work, _brcmf_update_ndtable);
490 err = register_netdevice(ndev);
492 err = register_netdev(ndev);
494 brcmf_err("couldn't register the net device\n");
498 ndev->priv_destructor = brcmf_cfg80211_free_netdev;
499 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
503 drvr->iflist[ifp->bsscfgidx] = NULL;
504 ndev->netdev_ops = NULL;
508 static void brcmf_net_detach(struct net_device *ndev, bool rtnl_locked)
510 if (ndev->reg_state == NETREG_REGISTERED) {
512 unregister_netdevice(ndev);
514 unregister_netdev(ndev);
516 brcmf_cfg80211_free_netdev(ndev);
521 void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on)
523 struct net_device *ndev;
525 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d carrier=%d\n", ifp->bsscfgidx,
529 brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_DISCONNECTED, !on);
531 if (!netif_carrier_ok(ndev))
532 netif_carrier_on(ndev);
535 if (netif_carrier_ok(ndev))
536 netif_carrier_off(ndev);
540 static int brcmf_net_p2p_open(struct net_device *ndev)
542 brcmf_dbg(TRACE, "Enter\n");
544 return brcmf_cfg80211_up(ndev);
547 static int brcmf_net_p2p_stop(struct net_device *ndev)
549 brcmf_dbg(TRACE, "Enter\n");
551 return brcmf_cfg80211_down(ndev);
554 static netdev_tx_t brcmf_net_p2p_start_xmit(struct sk_buff *skb,
555 struct net_device *ndev)
558 dev_kfree_skb_any(skb);
563 static const struct net_device_ops brcmf_netdev_ops_p2p = {
564 .ndo_open = brcmf_net_p2p_open,
565 .ndo_stop = brcmf_net_p2p_stop,
566 .ndo_start_xmit = brcmf_net_p2p_start_xmit
569 static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
571 struct net_device *ndev;
573 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d mac=%pM\n", ifp->bsscfgidx,
577 ndev->netdev_ops = &brcmf_netdev_ops_p2p;
579 /* set the mac address */
580 memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN);
582 if (register_netdev(ndev) != 0) {
583 brcmf_err("couldn't register the p2p net device\n");
587 brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
592 ifp->drvr->iflist[ifp->bsscfgidx] = NULL;
593 ndev->netdev_ops = NULL;
597 struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
598 bool is_p2pdev, const char *name, u8 *mac_addr)
600 struct brcmf_if *ifp;
601 struct net_device *ndev;
603 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx, ifidx);
605 ifp = drvr->iflist[bsscfgidx];
607 * Delete the existing interface before overwriting it
608 * in case we missed the BRCMF_E_IF_DEL event.
612 brcmf_err("ERROR: netdev:%s already exists\n",
614 netif_stop_queue(ifp->ndev);
615 brcmf_net_detach(ifp->ndev, false);
616 drvr->iflist[bsscfgidx] = NULL;
618 brcmf_dbg(INFO, "netdev:%s ignore IF event\n",
620 return ERR_PTR(-EINVAL);
624 if (!drvr->settings->p2p_enable && is_p2pdev) {
625 /* this is P2P_DEVICE interface */
626 brcmf_dbg(INFO, "allocate non-netdev interface\n");
627 ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
629 return ERR_PTR(-ENOMEM);
631 brcmf_dbg(INFO, "allocate netdev interface\n");
632 /* Allocate netdev, including space for private structure */
633 ndev = alloc_netdev(sizeof(*ifp), is_p2pdev ? "p2p%d" : name,
634 NET_NAME_UNKNOWN, ether_setup);
636 return ERR_PTR(-ENOMEM);
638 ndev->needs_free_netdev = true;
639 ifp = netdev_priv(ndev);
641 /* store mapping ifidx to bsscfgidx */
642 if (drvr->if2bss[ifidx] == BRCMF_BSSIDX_INVALID)
643 drvr->if2bss[ifidx] = bsscfgidx;
647 drvr->iflist[bsscfgidx] = ifp;
649 ifp->bsscfgidx = bsscfgidx;
651 init_waitqueue_head(&ifp->pend_8021x_wait);
652 spin_lock_init(&ifp->netif_stop_lock);
654 if (mac_addr != NULL)
655 memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
657 brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
658 current->pid, name, ifp->mac_addr);
663 static void brcmf_del_if(struct brcmf_pub *drvr, s32 bsscfgidx,
666 struct brcmf_if *ifp;
669 ifp = drvr->iflist[bsscfgidx];
671 brcmf_err("Null interface, bsscfgidx=%d\n", bsscfgidx);
674 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx,
679 if (bsscfgidx == 0) {
680 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
682 brcmf_netdev_stop(ifp->ndev);
686 netif_stop_queue(ifp->ndev);
689 if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
690 cancel_work_sync(&ifp->multicast_work);
691 cancel_work_sync(&ifp->ndoffload_work);
693 brcmf_net_detach(ifp->ndev, rtnl_locked);
695 /* Only p2p device interfaces which get dynamically created
696 * end up here. In this case the p2p module should be informed
697 * about the removal of the interface within the firmware. If
698 * not then p2p commands towards the firmware will cause some
699 * serious troublesome side effects. The p2p module will clean
700 * up the ifp if needed.
702 brcmf_p2p_ifp_removed(ifp, rtnl_locked);
706 drvr->iflist[bsscfgidx] = NULL;
707 if (drvr->if2bss[ifidx] == bsscfgidx)
708 drvr->if2bss[ifidx] = BRCMF_BSSIDX_INVALID;
711 void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked)
713 if (!ifp || WARN_ON(ifp->drvr->iflist[ifp->bsscfgidx] != ifp))
715 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", ifp->bsscfgidx,
717 brcmf_proto_del_if(ifp->drvr, ifp);
718 brcmf_del_if(ifp->drvr, ifp->bsscfgidx, rtnl_locked);
721 static int brcmf_psm_watchdog_notify(struct brcmf_if *ifp,
722 const struct brcmf_event_msg *evtmsg,
727 brcmf_dbg(TRACE, "enter: bsscfgidx=%d\n", ifp->bsscfgidx);
729 brcmf_err("PSM's watchdog has fired!\n");
731 err = brcmf_debug_create_memdump(ifp->drvr->bus_if, data,
734 brcmf_err("Failed to get memory dump, %d\n", err);
740 #define ARPOL_MAX_ENTRIES 8
741 static int brcmf_inetaddr_changed(struct notifier_block *nb,
742 unsigned long action, void *data)
744 struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
746 struct in_ifaddr *ifa = data;
747 struct net_device *ndev = ifa->ifa_dev->dev;
748 struct brcmf_if *ifp;
751 __be32 addr_table[ARPOL_MAX_ENTRIES] = {0};
753 /* Find out if the notification is meant for us */
754 for (idx = 0; idx < BRCMF_MAX_IFS; idx++) {
755 ifp = drvr->iflist[idx];
756 if (ifp && ifp->ndev == ndev)
758 if (idx == BRCMF_MAX_IFS - 1)
762 /* check if arp offload is supported */
763 ret = brcmf_fil_iovar_int_get(ifp, "arpoe", &val);
767 /* old version only support primary index */
768 ret = brcmf_fil_iovar_int_get(ifp, "arp_version", &val);
772 ifp = drvr->iflist[0];
774 /* retrieve the table from firmware */
775 ret = brcmf_fil_iovar_data_get(ifp, "arp_hostip", addr_table,
778 brcmf_err("fail to get arp ip table err:%d\n", ret);
782 for (i = 0; i < ARPOL_MAX_ENTRIES; i++)
783 if (ifa->ifa_address == addr_table[i])
788 if (i == ARPOL_MAX_ENTRIES) {
789 brcmf_dbg(TRACE, "add %pI4 to arp table\n",
791 /* set it directly */
792 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
793 &ifa->ifa_address, sizeof(ifa->ifa_address));
795 brcmf_err("add arp ip err %d\n", ret);
799 if (i < ARPOL_MAX_ENTRIES) {
801 brcmf_dbg(TRACE, "remove %pI4 from arp table\n",
803 /* clear the table in firmware */
804 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear",
807 brcmf_err("fail to clear arp ip table err:%d\n",
811 for (i = 0; i < ARPOL_MAX_ENTRIES; i++) {
812 if (addr_table[i] == 0)
814 ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip",
816 sizeof(addr_table[i]));
818 brcmf_err("add arp ip err %d\n",
831 #if IS_ENABLED(CONFIG_IPV6)
832 static int brcmf_inet6addr_changed(struct notifier_block *nb,
833 unsigned long action, void *data)
835 struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub,
837 struct inet6_ifaddr *ifa = data;
838 struct brcmf_if *ifp;
840 struct in6_addr *table;
842 /* Only handle primary interface */
843 ifp = drvr->iflist[0];
846 if (ifp->ndev != ifa->idev->dev)
849 table = ifp->ipv6_addr_tbl;
850 for (i = 0; i < NDOL_MAX_ENTRIES; i++)
851 if (ipv6_addr_equal(&ifa->addr, &table[i]))
856 if (i == NDOL_MAX_ENTRIES) {
857 if (ifp->ipv6addr_idx < NDOL_MAX_ENTRIES) {
858 table[ifp->ipv6addr_idx++] = ifa->addr;
860 for (i = 0; i < NDOL_MAX_ENTRIES - 1; i++)
861 table[i] = table[i + 1];
862 table[NDOL_MAX_ENTRIES - 1] = ifa->addr;
867 if (i < NDOL_MAX_ENTRIES) {
868 for (; i < ifp->ipv6addr_idx - 1; i++)
869 table[i] = table[i + 1];
870 memset(&table[i], 0, sizeof(table[i]));
878 schedule_work(&ifp->ndoffload_work);
884 int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings)
886 struct brcmf_pub *drvr = NULL;
890 brcmf_dbg(TRACE, "Enter\n");
892 /* Allocate primary brcmf_info */
893 drvr = kzalloc(sizeof(struct brcmf_pub), GFP_ATOMIC);
897 for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
898 drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
900 mutex_init(&drvr->proto_block);
902 /* Link to bus module */
904 drvr->bus_if = dev_get_drvdata(dev);
905 drvr->bus_if->drvr = drvr;
906 drvr->settings = settings;
908 /* attach debug facilities */
909 brcmf_debug_attach(drvr);
911 /* Attach and link in the protocol */
912 ret = brcmf_proto_attach(drvr);
914 brcmf_err("brcmf_prot_attach failed\n");
918 /* Attach to events important for core code */
919 brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG,
920 brcmf_psm_watchdog_notify);
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_started(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_proto_init_done(drvr);
1001 brcmf_proto_add_if(drvr, 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;
1045 brcmf_net_detach(ifp->ndev, false);
1047 brcmf_net_detach(p2p_ifp->ndev, false);
1048 drvr->iflist[0] = NULL;
1049 drvr->iflist[1] = NULL;
1050 if (drvr->settings->ignore_probe_fail)
1056 void brcmf_bus_add_txhdrlen(struct device *dev, uint len)
1058 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1059 struct brcmf_pub *drvr = bus_if->drvr;
1062 drvr->hdrlen += len;
1066 void brcmf_dev_reset(struct device *dev)
1068 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1069 struct brcmf_pub *drvr = bus_if->drvr;
1074 if (drvr->iflist[0])
1075 brcmf_fil_cmd_int_set(drvr->iflist[0], BRCMF_C_TERMINATED, 1);
1078 void brcmf_detach(struct device *dev)
1081 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1082 struct brcmf_pub *drvr = bus_if->drvr;
1084 brcmf_dbg(TRACE, "Enter\n");
1090 unregister_inetaddr_notifier(&drvr->inetaddr_notifier);
1093 #if IS_ENABLED(CONFIG_IPV6)
1094 unregister_inet6addr_notifier(&drvr->inet6addr_notifier);
1097 /* stop firmware event handling */
1098 brcmf_fweh_detach(drvr);
1100 brcmf_p2p_detach(&drvr->config->p2p);
1102 brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
1104 /* make sure primary interface removed last */
1105 for (i = BRCMF_MAX_IFS-1; i > -1; i--)
1106 brcmf_remove_interface(drvr->iflist[i], false);
1108 brcmf_cfg80211_detach(drvr->config);
1110 brcmf_bus_stop(drvr->bus_if);
1112 brcmf_proto_detach(drvr);
1114 brcmf_debug_detach(drvr);
1115 bus_if->drvr = NULL;
1119 s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len)
1121 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1122 struct brcmf_if *ifp = bus_if->drvr->iflist[0];
1124 return brcmf_fil_iovar_data_set(ifp, name, data, len);
1127 static int brcmf_get_pend_8021x_cnt(struct brcmf_if *ifp)
1129 return atomic_read(&ifp->pend_8021x_cnt);
1132 int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp)
1136 err = wait_event_timeout(ifp->pend_8021x_wait,
1137 !brcmf_get_pend_8021x_cnt(ifp),
1138 MAX_WAIT_FOR_8021X_TX);
1141 brcmf_err("Timed out waiting for no pending 802.1x packets\n");
1146 void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state)
1148 struct brcmf_pub *drvr = bus->drvr;
1149 struct net_device *ndev;
1152 brcmf_dbg(TRACE, "%d -> %d\n", bus->state, state);
1155 if (state == BRCMF_BUS_UP) {
1156 for (ifidx = 0; ifidx < BRCMF_MAX_IFS; ifidx++) {
1157 if ((drvr->iflist[ifidx]) &&
1158 (drvr->iflist[ifidx]->ndev)) {
1159 ndev = drvr->iflist[ifidx]->ndev;
1160 if (netif_queue_stopped(ndev))
1161 netif_wake_queue(ndev);
1167 static void brcmf_driver_register(struct work_struct *work)
1169 #ifdef CONFIG_BRCMFMAC_SDIO
1170 brcmf_sdio_register();
1172 #ifdef CONFIG_BRCMFMAC_USB
1173 brcmf_usb_register();
1175 #ifdef CONFIG_BRCMFMAC_PCIE
1176 brcmf_pcie_register();
1179 static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register);
1181 int __init brcmf_core_init(void)
1183 if (!schedule_work(&brcmf_driver_work))
1189 void __exit brcmf_core_exit(void)
1191 cancel_work_sync(&brcmf_driver_work);
1193 #ifdef CONFIG_BRCMFMAC_SDIO
1196 #ifdef CONFIG_BRCMFMAC_USB
1199 #ifdef CONFIG_BRCMFMAC_PCIE