diff options
| author | Beniamino Galvani <b.galvani@gmail.com> | 2023-10-16 10:15:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-10-16 11:57:52 +0300 |
| commit | 60a77d11cd5d6501562ff4a297491f65a43c07db (patch) | |
| tree | 2527ab7469c5f86fb392e98ddf8c46dd528ab32e /drivers/net/geneve.c | |
| parent | 3ae983a603a49e6c80763f747a170b7e987531f3 (diff) | |
| download | linux-60a77d11cd5d6501562ff4a297491f65a43c07db.tar.xz | |
geneve: add dsfield helper function
Add a helper function to compute the tos/dsfield. In this way, we can
factor out some duplicate code. Also, the helper will be called from
more places in the next commit.
Suggested-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/geneve.c')
| -rw-r--r-- | drivers/net/geneve.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 78f9d588f712..572c3e36b209 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -784,6 +784,22 @@ free_dst: return err; } +static u8 geneve_get_dsfield(struct sk_buff *skb, struct net_device *dev, + const struct ip_tunnel_info *info, + bool *use_cache) +{ + struct geneve_dev *geneve = netdev_priv(dev); + u8 dsfield; + + dsfield = info->key.tos; + if (dsfield == 1 && !geneve->cfg.collect_md) { + dsfield = ip_tunnel_get_dsfield(ip_hdr(skb), skb); + *use_cache = false; + } + + return dsfield; +} + static struct rtable *geneve_get_v4_rt(struct sk_buff *skb, struct net_device *dev, struct geneve_sock *gs4, @@ -810,11 +826,7 @@ static struct rtable *geneve_get_v4_rt(struct sk_buff *skb, fl4->fl4_sport = sport; fl4->flowi4_flags = info->key.flow_flags; - tos = info->key.tos; - if ((tos == 1) && !geneve->cfg.collect_md) { - tos = ip_tunnel_get_dsfield(ip_hdr(skb), skb); - use_cache = false; - } + tos = geneve_get_dsfield(skb, dev, info, &use_cache); fl4->flowi4_tos = RT_TOS(tos); if (full_tos) *full_tos = tos; @@ -865,12 +877,7 @@ static struct dst_entry *geneve_get_v6_dst(struct sk_buff *skb, fl6->fl6_dport = dport; fl6->fl6_sport = sport; - prio = info->key.tos; - if ((prio == 1) && !geneve->cfg.collect_md) { - prio = ip_tunnel_get_dsfield(ip_hdr(skb), skb); - use_cache = false; - } - + prio = geneve_get_dsfield(skb, dev, info, &use_cache); fl6->flowlabel = ip6_make_flowinfo(prio, info->key.label); dst_cache = (struct dst_cache *)&info->dst_cache; if (use_cache) { |