diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 108 | ||||
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h | 2 |
2 files changed, 110 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c index 3a39192e3f14..4c8f7bf4227c 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -17,6 +17,7 @@ #include <linux/kernel.h> #include <linux/etherdevice.h> #include <linux/module.h> +#include <linux/inetdevice.h> #include <net/cfg80211.h> #include <net/rtnetlink.h> #include <brcmu_utils.h> @@ -620,6 +621,8 @@ static int brcmf_netdev_stop(struct net_device *ndev) brcmf_cfg80211_down(ndev); + brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear", NULL, 0); + brcmf_net_setcarrier(ifp, false); return 0; @@ -940,6 +943,98 @@ int brcmf_get_next_free_bsscfgidx(struct brcmf_pub *drvr) return available ? bsscfgidx : -ENOMEM; } +#ifdef CONFIG_INET +#define ARPOL_MAX_ENTRIES 8 +static int brcmf_inetaddr_changed(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct brcmf_pub *drvr = container_of(nb, struct brcmf_pub, + inetaddr_notifier); + struct in_ifaddr *ifa = data; + struct net_device *ndev = ifa->ifa_dev->dev; + struct brcmf_if *ifp; + int idx, i, ret; + u32 val; + __be32 addr_table[ARPOL_MAX_ENTRIES] = {0}; + + /* Find out if the notification is meant for us */ + for (idx = 0; idx < BRCMF_MAX_IFS; idx++) { + ifp = drvr->iflist[idx]; + if (ifp && ifp->ndev == ndev) + break; + if (idx == BRCMF_MAX_IFS - 1) + return NOTIFY_DONE; + } + + /* check if arp offload is supported */ + ret = brcmf_fil_iovar_int_get(ifp, "arpoe", &val); + if (ret) + return NOTIFY_OK; + + /* old version only support primary index */ + ret = brcmf_fil_iovar_int_get(ifp, "arp_version", &val); + if (ret) + val = 1; + if (val == 1) + ifp = drvr->iflist[0]; + + /* retrieve the table from firmware */ + ret = brcmf_fil_iovar_data_get(ifp, "arp_hostip", addr_table, + sizeof(addr_table)); + if (ret) { + brcmf_err("fail to get arp ip table err:%d\n", ret); + return NOTIFY_OK; + } + + for (i = 0; i < ARPOL_MAX_ENTRIES; i++) + if (ifa->ifa_address == addr_table[i]) + break; + + switch (action) { + case NETDEV_UP: + if (i == ARPOL_MAX_ENTRIES) { + brcmf_dbg(TRACE, "add %pI4 to arp table\n", + &ifa->ifa_address); + /* set it directly */ + ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip", + &ifa->ifa_address, sizeof(ifa->ifa_address)); + if (ret) + brcmf_err("add arp ip err %d\n", ret); + } + break; + case NETDEV_DOWN: + if (i < ARPOL_MAX_ENTRIES) { + addr_table[i] = 0; + brcmf_dbg(TRACE, "remove %pI4 from arp table\n", + &ifa->ifa_address); + /* clear the table in firmware */ + ret = brcmf_fil_iovar_data_set(ifp, "arp_hostip_clear", + NULL, 0); + if (ret) { + brcmf_err("fail to clear arp ip table err:%d\n", + ret); + return NOTIFY_OK; + } + for (i = 0; i < ARPOL_MAX_ENTRIES; i++) { + if (addr_table[i] != 0) { + brcmf_fil_iovar_data_set(ifp, + "arp_hostip", &addr_table[i], + sizeof(addr_table[i])); + if (ret) + brcmf_err("add arp ip err %d\n", + ret); + } + } + } + break; + default: + break; + } + + return NOTIFY_OK; +} +#endif + int brcmf_attach(struct device *dev) { struct brcmf_pub *drvr = NULL; @@ -1068,6 +1163,15 @@ int brcmf_bus_start(struct device *dev) if (p2p_ifp) ret = brcmf_net_p2p_attach(p2p_ifp); } + + if (ret) + goto fail; + +#ifdef CONFIG_INET + drvr->inetaddr_notifier.notifier_call = brcmf_inetaddr_changed; + ret = register_inetaddr_notifier(&drvr->inetaddr_notifier); +#endif + fail: if (ret < 0) { brcmf_err("failed: %d\n", ret); @@ -1133,6 +1237,10 @@ void brcmf_detach(struct device *dev) if (drvr == NULL) return; +#ifdef CONFIG_INET + unregister_inetaddr_notifier(&drvr->inetaddr_notifier); +#endif + /* stop firmware event handling */ brcmf_fweh_detach(drvr); if (drvr->config) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h index 77d8239d9536..6018af72bab1 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h @@ -141,6 +141,8 @@ struct brcmf_pub { #ifdef DEBUG struct dentry *dbgfs_dir; #endif + + struct notifier_block inetaddr_notifier; }; /* forward declarations */ |