From 9daae9bd47cff82a2a06aca23c458d6c79d09d52 Mon Sep 17 00:00:00 2001 From: Gal Pressman Date: Wed, 28 Mar 2018 17:46:54 +0300 Subject: net: Call add/kill vid ndo on vlan filter feature toggling NETIF_F_HW_VLAN_[CS]TAG_FILTER features require more than just a bit flip in dev->features in order to keep the driver in a consistent state. These features notify the driver of each added/removed vlan, but toggling of vlan-filter does not notify the driver accordingly for each of the existing vlans. This patch implements a similar solution to NETIF_F_RX_UDP_TUNNEL_PORT behavior (which notifies the driver about UDP ports in the same manner that vids are reported). Each toggling of the features propagates to the 8021q module, which iterates over the vlans and call add/kill ndo accordingly. Signed-off-by: Gal Pressman Reviewed-by: Tariq Toukan Signed-off-by: David S. Miller --- net/core/dev.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'net/core') diff --git a/net/core/dev.c b/net/core/dev.c index eca5458b2753..1ddb6b9c58a8 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1584,6 +1584,8 @@ const char *netdev_cmd_to_name(enum netdev_cmd cmd) N(RESEND_IGMP) N(PRECHANGEMTU) N(CHANGEINFODATA) N(BONDING_INFO) N(PRECHANGEUPPER) N(CHANGELOWERSTATE) N(UDP_TUNNEL_PUSH_INFO) N(UDP_TUNNEL_DROP_INFO) N(CHANGE_TX_QUEUE_LEN) + N(CVLAN_FILTER_PUSH_INFO) N(CVLAN_FILTER_DROP_INFO) + N(SVLAN_FILTER_PUSH_INFO) N(SVLAN_FILTER_DROP_INFO) }; #undef N return "UNKNOWN_NETDEV_EVENT"; @@ -7665,6 +7667,24 @@ sync_lower: } } + if (diff & NETIF_F_HW_VLAN_CTAG_FILTER) { + if (features & NETIF_F_HW_VLAN_CTAG_FILTER) { + dev->features = features; + err |= vlan_get_rx_ctag_filter_info(dev); + } else { + vlan_drop_rx_ctag_filter_info(dev); + } + } + + if (diff & NETIF_F_HW_VLAN_STAG_FILTER) { + if (features & NETIF_F_HW_VLAN_STAG_FILTER) { + dev->features = features; + err |= vlan_get_rx_stag_filter_info(dev); + } else { + vlan_drop_rx_stag_filter_info(dev); + } + } + dev->features = features; } -- cgit v1.2.3