diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/txrx.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/txrx.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 8ebc6d59aa74..17118d643d7e 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -10,6 +10,7 @@ #include <linux/moduleparam.h> #include <linux/ip.h> #include <linux/ipv6.h> +#include <linux/if_vlan.h> #include <net/ipv6.h> #include <linux/prefetch.h> @@ -1529,6 +1530,35 @@ static struct wil_ring *wil_find_tx_bcast_1(struct wil6210_priv *wil, return v; } +/* apply multicast to unicast only for ARP and IP packets + * (see NL80211_CMD_SET_MULTICAST_TO_UNICAST for more info) + */ +static bool wil_check_multicast_to_unicast(struct wil6210_priv *wil, + struct sk_buff *skb) +{ + const struct ethhdr *eth = (void *)skb->data; + const struct vlan_ethhdr *ethvlan = (void *)skb->data; + __be16 ethertype; + + if (!wil->multicast_to_unicast) + return false; + + /* multicast to unicast conversion only for some payload */ + ethertype = eth->h_proto; + if (ethertype == htons(ETH_P_8021Q) && skb->len >= VLAN_ETH_HLEN) + ethertype = ethvlan->h_vlan_encapsulated_proto; + switch (ethertype) { + case htons(ETH_P_ARP): + case htons(ETH_P_IP): + case htons(ETH_P_IPV6): + break; + default: + return false; + } + + return true; +} + static void wil_set_da_for_vring(struct wil6210_priv *wil, struct sk_buff *skb, int vring_index) { @@ -2336,7 +2366,7 @@ netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev) /* in STA mode (ESS), all to same VRING (to AP) */ ring = wil_find_tx_ring_sta(wil, vif, skb); } else if (bcast) { - if (vif->pbss) + if (vif->pbss || wil_check_multicast_to_unicast(wil, skb)) /* in pbss, no bcast VRING - duplicate skb in * all stations VRINGs */ |