diff options
| -rw-r--r-- | net/core/rtnetlink.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index a4faefd65006..412ebf0b09c6 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1637,6 +1637,8 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = { [IFLA_PROMISCUITY] = { .type = NLA_U32 }, [IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 }, [IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 }, + [IFLA_GSO_MAX_SEGS] = { .type = NLA_U32 }, + [IFLA_GSO_MAX_SIZE] = { .type = NLA_U32 }, [IFLA_PHYS_PORT_ID] = { .type = NLA_BINARY, .len = MAX_PHYS_ITEM_ID_LEN }, [IFLA_CARRIER_CHANGES] = { .type = NLA_U32 }, /* ignored */ [IFLA_PHYS_SWITCH_ID] = { .type = NLA_BINARY, .len = MAX_PHYS_ITEM_ID_LEN }, @@ -2287,6 +2289,34 @@ static int do_setlink(const struct sk_buff *skb, } } + if (tb[IFLA_GSO_MAX_SIZE]) { + u32 max_size = nla_get_u32(tb[IFLA_GSO_MAX_SIZE]); + + if (max_size > GSO_MAX_SIZE) { + err = -EINVAL; + goto errout; + } + + if (dev->gso_max_size ^ max_size) { + netif_set_gso_max_size(dev, max_size); + status |= DO_SETLINK_MODIFIED; + } + } + + if (tb[IFLA_GSO_MAX_SEGS]) { + u32 max_segs = nla_get_u32(tb[IFLA_GSO_MAX_SEGS]); + + if (max_segs > GSO_MAX_SEGS) { + err = -EINVAL; + goto errout; + } + + if (dev->gso_max_segs ^ max_segs) { + dev->gso_max_segs = max_segs; + status |= DO_SETLINK_MODIFIED; + } + } + if (tb[IFLA_OPERSTATE]) set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE])); @@ -2651,6 +2681,10 @@ struct net_device *rtnl_create_link(struct net *net, dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]); if (tb[IFLA_GROUP]) dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP])); + if (tb[IFLA_GSO_MAX_SIZE]) + netif_set_gso_max_size(dev, nla_get_u32(tb[IFLA_GSO_MAX_SIZE])); + if (tb[IFLA_GSO_MAX_SEGS]) + dev->gso_max_size = nla_get_u32(tb[IFLA_GSO_MAX_SEGS]); return dev; } |