From: Alexander Duyck <aduyck@mirantis.com> To: netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org Cc: hannes@redhat.com, jesse@kernel.org, eugenia@mellanox.com, jbenc@redhat.com, alexander.duyck@gmail.com, saeedm@mellanox.com, ariel.elior@qlogic.com, tom@herbertland.com, michael.chan@broadcom.com, Dept-GELinuxNICDev@qlogic.com, davem@davemloft.net Subject: [net-next PATCH v3 17/17] vxlan: Add new UDP encapsulation offload type for VXLAN-GPE Date: Thu, 16 Jun 2016 12:23:19 -0700 [thread overview] Message-ID: <20160616192318.20872.40266.stgit@localhost.localdomain> (raw) In-Reply-To: <20160616191851.20872.67154.stgit@localhost.localdomain> The fact is VXLAN with Generic Protocol Extensions cannot be supported by the same hardware parsers that support VXLAN. The protocol extensions allow for things like a Next Protocol field which in turn allows for things other than Ethernet to be passed over the tunnel. Most existing parsers will not know how to interpret this. To resolve this I am giving VXLAN-GPE its own UDP encapsulation offload type. This way hardware that does support GPE can simply add this type to the switch statement for VXLAN, and if they don't support it then this will fix any issues where headers might be interpreted incorrectly. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> --- drivers/net/vxlan.c | 6 ++++++ include/net/udp_tunnel.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 31aeec967175..abb9cd2df9e9 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -998,6 +998,8 @@ static bool __vxlan_sock_release_prep(struct vxlan_sock *vs) spin_lock(&vn->sock_lock); hlist_del_rcu(&vs->hlist); udp_tunnel_notify_del_rx_port(vs->sock, + (vs->flags & VXLAN_F_GPE) ? + UDP_TUNNEL_TYPE_VXLAN_GPE : UDP_TUNNEL_TYPE_VXLAN); spin_unlock(&vn->sock_lock); @@ -2488,6 +2490,8 @@ static void vxlan_push_rx_ports(struct net_device *dev) for (i = 0; i < PORT_HASH_SIZE; ++i) { hlist_for_each_entry_rcu(vs, &vn->sock_list[i], hlist) udp_tunnel_push_rx_port(dev, vs->sock, + (vs->flags & VXLAN_F_GPE) ? + UDP_TUNNEL_TYPE_VXLAN_GPE : UDP_TUNNEL_TYPE_VXLAN); } spin_unlock(&vn->sock_lock); @@ -2691,6 +2695,8 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, bool ipv6, spin_lock(&vn->sock_lock); hlist_add_head_rcu(&vs->hlist, vs_head(net, port)); udp_tunnel_notify_add_rx_port(sock, + (vs->flags & VXLAN_F_GPE) ? + UDP_TUNNEL_TYPE_VXLAN_GPE : UDP_TUNNEL_TYPE_VXLAN); spin_unlock(&vn->sock_lock); diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h index 1c9408a04213..02c5be037451 100644 --- a/include/net/udp_tunnel.h +++ b/include/net/udp_tunnel.h @@ -103,6 +103,7 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock, enum udp_parsable_tunnel_type { UDP_TUNNEL_TYPE_VXLAN, /* RFC 7348 */ UDP_TUNNEL_TYPE_GENEVE, /* draft-ietf-nvo3-geneve */ + UDP_TUNNEL_TYPE_VXLAN_GPE, /* draft-ietf-nvo3-vxlan-gpe */ }; struct udp_tunnel_info {
WARNING: multiple messages have this Message-ID (diff)
From: Alexander Duyck <aduyck@mirantis.com> To: intel-wired-lan@osuosl.org Subject: [Intel-wired-lan] [net-next PATCH v3 17/17] vxlan: Add new UDP encapsulation offload type for VXLAN-GPE Date: Thu, 16 Jun 2016 12:23:19 -0700 [thread overview] Message-ID: <20160616192318.20872.40266.stgit@localhost.localdomain> (raw) In-Reply-To: <20160616191851.20872.67154.stgit@localhost.localdomain> The fact is VXLAN with Generic Protocol Extensions cannot be supported by the same hardware parsers that support VXLAN. The protocol extensions allow for things like a Next Protocol field which in turn allows for things other than Ethernet to be passed over the tunnel. Most existing parsers will not know how to interpret this. To resolve this I am giving VXLAN-GPE its own UDP encapsulation offload type. This way hardware that does support GPE can simply add this type to the switch statement for VXLAN, and if they don't support it then this will fix any issues where headers might be interpreted incorrectly. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> --- drivers/net/vxlan.c | 6 ++++++ include/net/udp_tunnel.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 31aeec967175..abb9cd2df9e9 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -998,6 +998,8 @@ static bool __vxlan_sock_release_prep(struct vxlan_sock *vs) spin_lock(&vn->sock_lock); hlist_del_rcu(&vs->hlist); udp_tunnel_notify_del_rx_port(vs->sock, + (vs->flags & VXLAN_F_GPE) ? + UDP_TUNNEL_TYPE_VXLAN_GPE : UDP_TUNNEL_TYPE_VXLAN); spin_unlock(&vn->sock_lock); @@ -2488,6 +2490,8 @@ static void vxlan_push_rx_ports(struct net_device *dev) for (i = 0; i < PORT_HASH_SIZE; ++i) { hlist_for_each_entry_rcu(vs, &vn->sock_list[i], hlist) udp_tunnel_push_rx_port(dev, vs->sock, + (vs->flags & VXLAN_F_GPE) ? + UDP_TUNNEL_TYPE_VXLAN_GPE : UDP_TUNNEL_TYPE_VXLAN); } spin_unlock(&vn->sock_lock); @@ -2691,6 +2695,8 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, bool ipv6, spin_lock(&vn->sock_lock); hlist_add_head_rcu(&vs->hlist, vs_head(net, port)); udp_tunnel_notify_add_rx_port(sock, + (vs->flags & VXLAN_F_GPE) ? + UDP_TUNNEL_TYPE_VXLAN_GPE : UDP_TUNNEL_TYPE_VXLAN); spin_unlock(&vn->sock_lock); diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h index 1c9408a04213..02c5be037451 100644 --- a/include/net/udp_tunnel.h +++ b/include/net/udp_tunnel.h @@ -103,6 +103,7 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock, enum udp_parsable_tunnel_type { UDP_TUNNEL_TYPE_VXLAN, /* RFC 7348 */ UDP_TUNNEL_TYPE_GENEVE, /* draft-ietf-nvo3-geneve */ + UDP_TUNNEL_TYPE_VXLAN_GPE, /* draft-ietf-nvo3-vxlan-gpe */ }; struct udp_tunnel_info {
next prev parent reply other threads:[~2016-06-16 19:23 UTC|newest] Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-16 19:20 [net-next PATCH v3 00/17] Future-proof tunnel offload handlers Alexander Duyck 2016-06-16 19:20 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:20 ` [net-next PATCH v3 01/17] vxlan/geneve: Include udp_tunnel.h in vxlan/geneve.h and fixup includes Alexander Duyck 2016-06-16 19:20 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 23:06 ` Hannes Frederic Sowa 2016-06-16 23:06 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-16 19:20 ` [net-next PATCH v3 02/17] net: Combine GENEVE and VXLAN port notifiers into single functions Alexander Duyck 2016-06-16 19:20 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 22:45 ` Hannes Frederic Sowa 2016-06-16 22:45 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-16 19:21 ` [net-next PATCH v3 03/17] net: Merge VXLAN and GENEVE push notifiers into a single notifier Alexander Duyck 2016-06-16 19:21 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 22:47 ` Hannes Frederic Sowa 2016-06-16 22:47 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-16 19:21 ` [net-next PATCH v3 04/17] bnx2x: Move all UDP port notifiers to single function Alexander Duyck 2016-06-16 19:21 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:21 ` [net-next PATCH v3 05/17] bnxt: Update drivers to support unified UDP encapsulation offload functions Alexander Duyck 2016-06-16 19:21 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:21 ` [net-next PATCH v3 06/17] bnxt: Move GENEVE support from hard-coded port to using port notifier Alexander Duyck 2016-06-16 19:21 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 23:12 ` Michael Chan 2016-06-16 23:12 ` [Intel-wired-lan] " Michael Chan 2016-06-16 19:21 ` [net-next PATCH v3 07/17] benet: Replace ndo_add/del_vxlan_port with ndo_add/del_udp_enc_port Alexander Duyck 2016-06-16 19:21 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:21 ` [net-next PATCH v3 08/17] fm10k: " Alexander Duyck 2016-06-16 19:21 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:22 ` [net-next PATCH v3 09/17] i40e: Move all UDP port notifiers to single function Alexander Duyck 2016-06-16 19:22 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:22 ` [net-next PATCH v3 10/17] ixgbe: Replace ndo_add/del_vxlan_port with ndo_add/del_udp_enc_port Alexander Duyck 2016-06-16 19:22 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:22 ` [net-next PATCH v3 11/17] mlx4_en: " Alexander Duyck 2016-06-16 19:22 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:22 ` [net-next PATCH v3 12/17] mlx5_en: " Alexander Duyck 2016-06-16 19:22 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:22 ` [net-next PATCH v3 13/17] nfp: " Alexander Duyck 2016-06-16 19:22 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:22 ` [net-next PATCH v3 14/17] qede: Move all UDP port notifiers to single function Alexander Duyck 2016-06-16 19:22 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:23 ` [net-next PATCH v3 15/17] qlcnic: Replace ndo_add/del_vxlan_port with ndo_add/del_udp_enc_port Alexander Duyck 2016-06-16 19:23 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 19:23 ` [net-next PATCH v3 16/17] net: Remove deprecated tunnel specific UDP offload functions Alexander Duyck 2016-06-16 19:23 ` [Intel-wired-lan] " Alexander Duyck 2016-06-16 22:59 ` Hannes Frederic Sowa 2016-06-16 22:59 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-16 19:23 ` Alexander Duyck [this message] 2016-06-16 19:23 ` [Intel-wired-lan] [net-next PATCH v3 17/17] vxlan: Add new UDP encapsulation offload type for VXLAN-GPE Alexander Duyck 2016-06-16 23:01 ` Hannes Frederic Sowa 2016-06-16 23:01 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-18 3:26 ` [net-next PATCH v3 00/17] Future-proof tunnel offload handlers David Miller 2016-06-18 3:26 ` [Intel-wired-lan] " David Miller 2016-06-20 17:05 ` Tom Herbert 2016-06-20 17:05 ` [Intel-wired-lan] " Tom Herbert 2016-06-20 18:11 ` Hannes Frederic Sowa 2016-06-20 18:11 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-20 19:27 ` Tom Herbert 2016-06-20 19:27 ` [Intel-wired-lan] " Tom Herbert 2016-06-20 21:36 ` Hannes Frederic Sowa 2016-06-20 21:36 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-20 21:45 ` Tom Herbert 2016-06-20 21:45 ` [Intel-wired-lan] " Tom Herbert 2016-06-21 8:34 ` David Miller 2016-06-21 8:34 ` [Intel-wired-lan] " David Miller 2016-06-21 8:22 ` David Miller 2016-06-21 8:22 ` [Intel-wired-lan] " David Miller 2016-06-21 10:41 ` Edward Cree 2016-06-21 10:41 ` [Intel-wired-lan] " Edward Cree 2016-06-21 15:23 ` Hannes Frederic Sowa 2016-06-21 15:23 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-21 17:05 ` Alexander Duyck 2016-06-21 17:05 ` [Intel-wired-lan] " Alexander Duyck 2016-06-21 17:27 ` Edward Cree 2016-06-21 17:27 ` [Intel-wired-lan] " Edward Cree 2016-06-21 17:40 ` Hannes Frederic Sowa 2016-06-21 17:40 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-21 18:17 ` Alexander Duyck 2016-06-21 18:17 ` [Intel-wired-lan] " Alexander Duyck 2016-06-21 18:42 ` Tom Herbert 2016-06-21 18:42 ` [Intel-wired-lan] " Tom Herbert 2016-06-21 21:34 ` Hannes Frederic Sowa 2016-06-21 21:34 ` [Intel-wired-lan] " Hannes Frederic Sowa 2016-06-21 18:23 ` Edward Cree 2016-06-21 18:23 ` [Intel-wired-lan] " Edward Cree
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