Commit b21f502f authored by Igor Russkikh's avatar Igor Russkikh Committed by David S. Miller

net:ethernet:aquantia: Fix for multicast filter handling.

Since the HW supports up to 32 multicast filters we should
track count of multicast filters to avoid overflow.
If we attempt to add >32 multicast filter - just set NETIF_ALLMULTI flag
instead.

Fixes: 94f6c9e4cdf6 ("net: ethernet: aquantia: Support for NIC-specific code")
Signed-off-by: default avatarIgor Russkikh <Igor.Russkikh@aquantia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bd8ed441
......@@ -669,11 +669,26 @@ int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev)
netdev_for_each_mc_addr(ha, ndev) {
ether_addr_copy(self->mc_list.ar[i++], ha->addr);
++self->mc_list.count;
if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX)
break;
}
if (i >= AQ_CFG_MULTICAST_ADDRESS_MAX) {
/* Number of filters is too big: atlantic does not support this.
* Force all multi filter to support this.
* With this we disable all UC filters and setup "all pass"
* multicast mask
*/
self->packet_filter |= IFF_ALLMULTI;
self->aq_hw->aq_nic_cfg->mc_list_count = 0;
return self->aq_hw_ops.hw_packet_filter_set(self->aq_hw,
self->packet_filter);
} else {
return self->aq_hw_ops.hw_multicast_list_set(self->aq_hw,
self->mc_list.ar,
self->mc_list.count);
}
}
int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu)
......
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