diff options
author | 2016-04-11 10:41:07 +0300 | |
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committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/net/openvswitch/vport-geneve.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/net/openvswitch/vport-geneve.c')
-rw-r--r-- | kernel/net/openvswitch/vport-geneve.c | 183 |
1 files changed, 23 insertions, 160 deletions
diff --git a/kernel/net/openvswitch/vport-geneve.c b/kernel/net/openvswitch/vport-geneve.c index bf02fd580..e41cd12d9 100644 --- a/kernel/net/openvswitch/vport-geneve.c +++ b/kernel/net/openvswitch/vport-geneve.c @@ -26,113 +26,42 @@ #include "datapath.h" #include "vport.h" +#include "vport-netdev.h" static struct vport_ops ovs_geneve_vport_ops; - /** * struct geneve_port - Keeps track of open UDP ports - * @gs: The socket created for this port number. - * @name: vport name. + * @dst_port: destination port. */ struct geneve_port { - struct geneve_sock *gs; - char name[IFNAMSIZ]; + u16 port_no; }; -static LIST_HEAD(geneve_ports); - static inline struct geneve_port *geneve_vport(const struct vport *vport) { return vport_priv(vport); } -static inline struct genevehdr *geneve_hdr(const struct sk_buff *skb) -{ - return (struct genevehdr *)(udp_hdr(skb) + 1); -} - -/* Convert 64 bit tunnel ID to 24 bit VNI. */ -static void tunnel_id_to_vni(__be64 tun_id, __u8 *vni) -{ -#ifdef __BIG_ENDIAN - vni[0] = (__force __u8)(tun_id >> 16); - vni[1] = (__force __u8)(tun_id >> 8); - vni[2] = (__force __u8)tun_id; -#else - vni[0] = (__force __u8)((__force u64)tun_id >> 40); - vni[1] = (__force __u8)((__force u64)tun_id >> 48); - vni[2] = (__force __u8)((__force u64)tun_id >> 56); -#endif -} - -/* Convert 24 bit VNI to 64 bit tunnel ID. */ -static __be64 vni_to_tunnel_id(const __u8 *vni) -{ -#ifdef __BIG_ENDIAN - return (vni[0] << 16) | (vni[1] << 8) | vni[2]; -#else - return (__force __be64)(((__force u64)vni[0] << 40) | - ((__force u64)vni[1] << 48) | - ((__force u64)vni[2] << 56)); -#endif -} - -static void geneve_rcv(struct geneve_sock *gs, struct sk_buff *skb) -{ - struct vport *vport = gs->rcv_data; - struct genevehdr *geneveh = geneve_hdr(skb); - int opts_len; - struct ovs_tunnel_info tun_info; - __be64 key; - __be16 flags; - - opts_len = geneveh->opt_len * 4; - - flags = TUNNEL_KEY | TUNNEL_GENEVE_OPT | - (udp_hdr(skb)->check != 0 ? TUNNEL_CSUM : 0) | - (geneveh->oam ? TUNNEL_OAM : 0) | - (geneveh->critical ? TUNNEL_CRIT_OPT : 0); - - key = vni_to_tunnel_id(geneveh->vni); - - ovs_flow_tun_info_init(&tun_info, ip_hdr(skb), - udp_hdr(skb)->source, udp_hdr(skb)->dest, - key, flags, - geneveh->options, opts_len); - - ovs_vport_receive(vport, skb, &tun_info); -} - static int geneve_get_options(const struct vport *vport, struct sk_buff *skb) { struct geneve_port *geneve_port = geneve_vport(vport); - struct inet_sock *sk = inet_sk(geneve_port->gs->sock->sk); - if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT, ntohs(sk->inet_sport))) + if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT, geneve_port->port_no)) return -EMSGSIZE; return 0; } -static void geneve_tnl_destroy(struct vport *vport) -{ - struct geneve_port *geneve_port = geneve_vport(vport); - - geneve_sock_release(geneve_port->gs); - - ovs_vport_deferred_free(vport); -} - static struct vport *geneve_tnl_create(const struct vport_parms *parms) { struct net *net = ovs_dp_get_net(parms->dp); struct nlattr *options = parms->options; struct geneve_port *geneve_port; - struct geneve_sock *gs; + struct net_device *dev; struct vport *vport; struct nlattr *a; - int err; u16 dst_port; + int err; if (!options) { err = -EINVAL; @@ -154,106 +83,40 @@ static struct vport *geneve_tnl_create(const struct vport_parms *parms) return vport; geneve_port = geneve_vport(vport); - strncpy(geneve_port->name, parms->name, IFNAMSIZ); + geneve_port->port_no = dst_port; - gs = geneve_sock_add(net, htons(dst_port), geneve_rcv, vport, true, 0); - if (IS_ERR(gs)) { + rtnl_lock(); + dev = geneve_dev_create_fb(net, parms->name, NET_NAME_USER, dst_port); + if (IS_ERR(dev)) { + rtnl_unlock(); ovs_vport_free(vport); - return (void *)gs; + return ERR_CAST(dev); } - geneve_port->gs = gs; + dev_change_flags(dev, dev->flags | IFF_UP); + rtnl_unlock(); return vport; error: return ERR_PTR(err); } -static int geneve_tnl_send(struct vport *vport, struct sk_buff *skb) +static struct vport *geneve_create(const struct vport_parms *parms) { - const struct ovs_key_ipv4_tunnel *tun_key; - struct ovs_tunnel_info *tun_info; - struct net *net = ovs_dp_get_net(vport->dp); - struct geneve_port *geneve_port = geneve_vport(vport); - __be16 dport = inet_sk(geneve_port->gs->sock->sk)->inet_sport; - __be16 sport; - struct rtable *rt; - struct flowi4 fl; - u8 vni[3], opts_len, *opts; - __be16 df; - int err; - - tun_info = OVS_CB(skb)->egress_tun_info; - if (unlikely(!tun_info)) { - err = -EINVAL; - goto error; - } - - tun_key = &tun_info->tunnel; - rt = ovs_tunnel_route_lookup(net, tun_key, skb->mark, &fl, IPPROTO_UDP); - if (IS_ERR(rt)) { - err = PTR_ERR(rt); - goto error; - } - - df = tun_key->tun_flags & TUNNEL_DONT_FRAGMENT ? htons(IP_DF) : 0; - sport = udp_flow_src_port(net, skb, 1, USHRT_MAX, true); - tunnel_id_to_vni(tun_key->tun_id, vni); - skb->ignore_df = 1; - - if (tun_key->tun_flags & TUNNEL_GENEVE_OPT) { - opts = (u8 *)tun_info->options; - opts_len = tun_info->options_len; - } else { - opts = NULL; - opts_len = 0; - } - - err = geneve_xmit_skb(geneve_port->gs, rt, skb, fl.saddr, - tun_key->ipv4_dst, tun_key->ipv4_tos, - tun_key->ipv4_ttl, df, sport, dport, - tun_key->tun_flags, vni, opts_len, opts, - !!(tun_key->tun_flags & TUNNEL_CSUM), false); - if (err < 0) - ip_rt_put(rt); - return err; - -error: - kfree_skb(skb); - return err; -} - -static const char *geneve_get_name(const struct vport *vport) -{ - struct geneve_port *geneve_port = geneve_vport(vport); - - return geneve_port->name; -} + struct vport *vport; -static int geneve_get_egress_tun_info(struct vport *vport, struct sk_buff *skb, - struct ovs_tunnel_info *egress_tun_info) -{ - struct geneve_port *geneve_port = geneve_vport(vport); - struct net *net = ovs_dp_get_net(vport->dp); - __be16 dport = inet_sk(geneve_port->gs->sock->sk)->inet_sport; - __be16 sport = udp_flow_src_port(net, skb, 1, USHRT_MAX, true); + vport = geneve_tnl_create(parms); + if (IS_ERR(vport)) + return vport; - /* Get tp_src and tp_dst, refert to geneve_build_header(). - */ - return ovs_tunnel_get_egress_info(egress_tun_info, - ovs_dp_get_net(vport->dp), - OVS_CB(skb)->egress_tun_info, - IPPROTO_UDP, skb->mark, sport, dport); + return ovs_netdev_link(vport, parms->name); } static struct vport_ops ovs_geneve_vport_ops = { .type = OVS_VPORT_TYPE_GENEVE, - .create = geneve_tnl_create, - .destroy = geneve_tnl_destroy, - .get_name = geneve_get_name, + .create = geneve_create, + .destroy = ovs_netdev_tunnel_destroy, .get_options = geneve_get_options, - .send = geneve_tnl_send, - .owner = THIS_MODULE, - .get_egress_tun_info = geneve_get_egress_tun_info, + .send = dev_queue_xmit, }; static int __init ovs_geneve_tnl_init(void) |