Hi Kyle, I think we can better use new genl api in datapath. I am incorporating some changes I suggested before. I will send out patch soon.
Thanks, Pravin. On Tue, Apr 1, 2014 at 6:32 AM, Kyle Mestery <mest...@noironetworks.com> wrote: > Add support for building the in-tree kernel datapath for Linux kernels up to > 3.14. There were some changes in the netlink area which required adding new > compatibility code for this layer. Also, some new per-cpu stats initialization > code was added. > > Encompasses changes from the following upstream Linux kernel commits as well: > 36d5fe6a000790f56039afe26834265db0a3ad4c: "core, nfqueue, openvswitch: Orphan > frags in skb_zerocopy and handle errors" > 63862b5bef7349dd1137e4c70702c67d77565785: "net: replace macros net_random and > net_srandom with direct calls to prandom" > > Signed-off-by: Kyle Mestery <mest...@noironetworks.com> > --- > v4: Add support Linux 3.14 as well. > Handle a few more changes based on upstream commits. > v3: Correctly make genl_register_family backwards compatible. > > v2: Address a few comments from Pravin. Some of those comments > proved challenging, please see email reply to the list. > --- > FAQ | 2 +- > acinclude.m4 | 4 +- > datapath/actions.c | 2 +- > datapath/datapath.c | 36 +++++----- > datapath/datapath.h | 2 +- > datapath/dp_notify.c | 11 ++- > datapath/linux/Modules.mk | 2 + > datapath/linux/compat/genetlink-openvswitch.c | 20 ++++-- > datapath/linux/compat/include/linux/percpu.h | 18 +++++ > datapath/linux/compat/include/linux/random.h | 12 ++++ > datapath/linux/compat/include/linux/skbuff.h | 2 +- > datapath/linux/compat/include/net/genetlink.h | 96 > ++++++++++++++++++++++++++- > datapath/linux/compat/include/net/ip.h | 12 ++++ > datapath/linux/compat/skbuff-openvswitch.c | 6 +- > datapath/linux/compat/utils.c | 29 ++++++++ > datapath/vport-lisp.c | 7 +- > datapath/vport-vxlan.c | 3 +- > datapath/vport.c | 2 + > 18 files changed, 224 insertions(+), 42 deletions(-) > create mode 100644 datapath/linux/compat/include/linux/percpu.h > create mode 100644 datapath/linux/compat/include/linux/random.h > > diff --git a/FAQ b/FAQ > index eec2d4f..b376320 100644 > --- a/FAQ > +++ b/FAQ > @@ -149,7 +149,7 @@ A: The following table lists the Linux kernel versions > against which the > 1.11.x 2.6.18 to 3.8 > 2.0.x 2.6.32 to 3.10 > 2.1.x 2.6.32 to 3.11 > - 2.2.x 2.6.32 to 3.12 > + 2.2.x 2.6.32 to 3.14 > > Open vSwitch userspace should also work with the Linux kernel module > built into Linux 3.3 and later. > diff --git a/acinclude.m4 b/acinclude.m4 > index 1f52cf1..5630213 100644 > --- a/acinclude.m4 > +++ b/acinclude.m4 > @@ -134,10 +134,10 @@ AC_DEFUN([OVS_CHECK_LINUX], [ > AC_MSG_RESULT([$kversion]) > > if test "$version" -ge 3; then > - if test "$version" = 3 && test "$patchlevel" -le 12; then > + if test "$version" = 3 && test "$patchlevel" -le 13; then > : # Linux 3.x > else > - AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version > newer than 3.12.x is not supported]) > + AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version > newer than 3.14.x is not supported]) > fi > else > if test "$version" -le 1 || test "$patchlevel" -le 5 || test > "$sublevel" -le 31; then > diff --git a/datapath/actions.c b/datapath/actions.c > index 0b66e7c..59c5855 100644 > --- a/datapath/actions.c > +++ b/datapath/actions.c > @@ -446,7 +446,7 @@ static int sample(struct datapath *dp, struct sk_buff > *skb, > a = nla_next(a, &rem)) { > switch (nla_type(a)) { > case OVS_SAMPLE_ATTR_PROBABILITY: > - if (net_random() >= nla_get_u32(a)) > + if (prandom_u32() >= nla_get_u32(a)) > return 0; > break; > > diff --git a/datapath/datapath.c b/datapath/datapath.c > index 0c77045..49402c3 100644 > --- a/datapath/datapath.c > +++ b/datapath/datapath.c > @@ -70,14 +70,16 @@ static bool ovs_must_notify(struct genl_info *info, > const struct genl_multicast_group *grp) > { > return info->nlhdr->nlmsg_flags & NLM_F_ECHO || > - netlink_has_listeners(genl_info_net(info)->genl_sock, > grp->id); > + netlink_has_listeners_ovs(genl_info_net(info)->genl_sock, > grp, 0); > } > > +static struct genl_family dp_packet_genl_family; > + > static void ovs_notify(struct sk_buff *skb, struct genl_info *info, > struct genl_multicast_group *grp) > { > - genl_notify(skb, genl_info_net(info), info->snd_portid, > - grp->id, info->nlhdr, GFP_KERNEL); > + genl_notify(&dp_packet_genl_family, skb, genl_info_net(info), > + info->snd_portid, 0, info->nlhdr, GFP_KERNEL); > } > > /** > @@ -479,7 +481,9 @@ static int queue_userspace_packet(struct datapath *dp, > struct sk_buff *skb, > } > nla->nla_len = nla_attr_size(skb->len); > > - skb_zerocopy(user_skb, skb, skb->len, hlen); > + err = skb_zerocopy(user_skb, skb, skb->len, hlen); > + if (err) > + goto out; > > /* Pad OVS_PACKET_ATTR_PACKET if linear copy was performed */ > if (!(dp->user_features & OVS_DP_F_UNALIGNED)) { > @@ -493,6 +497,9 @@ static int queue_userspace_packet(struct datapath *dp, > struct sk_buff *skb, > > err = genlmsg_unicast(ovs_dp_get_net(dp), user_skb, > upcall_info->portid); > out: > + if (err) > + skb_tx_error(skb); > + > kfree_skb(nskb); > return err; > } > @@ -910,9 +917,8 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, > struct genl_info *info) > if (!IS_ERR(reply)) > ovs_notify(reply, info, &ovs_dp_flow_multicast_group); > else > - netlink_set_err(sock_net(skb->sk)->genl_sock, 0, > - ovs_dp_flow_multicast_group.id, > - PTR_ERR(reply)); > + genl_set_err(&dp_flow_genl_family, sock_net(skb->sk), > 0, > + 0, PTR_ERR(reply)); > } > return 0; > > @@ -1244,6 +1250,8 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct > genl_info *info) > goto err_destroy_table; > } > > + ovs_init_per_cpu_dp_stats(dp->stats_percpu); > + > dp->ports = kmalloc(DP_VPORT_HASH_BUCKETS * sizeof(struct hlist_head), > GFP_KERNEL); > if (!dp->ports) { > @@ -1489,7 +1497,7 @@ static const struct nla_policy > vport_policy[OVS_VPORT_ATTR_MAX + 1] = { > [OVS_VPORT_ATTR_OPTIONS] = { .type = NLA_NESTED }, > }; > > -static struct genl_family dp_vport_genl_family = { > +struct genl_family dp_vport_genl_family = { > .id = GENL_ID_GENERATE, > .hdrsize = sizeof(struct ovs_header), > .name = OVS_VPORT_FAMILY, > @@ -1892,19 +1900,13 @@ static int dp_register_genl(void) > > n_registered = 0; > for (i = 0; i < ARRAY_SIZE(dp_genl_families); i++) { > - const struct genl_family_and_ops *f = &dp_genl_families[i]; > + const struct genl_family_and_ops_ovs *f = > + (struct genl_family_and_ops_ovs > *)&dp_genl_families[i]; > > - err = genl_register_family_with_ops(f->family, f->ops, > - f->n_ops); > + err = genl_register_family_ovs(f); > if (err) > goto error; > n_registered++; > - > - if (f->group) { > - err = genl_register_mc_group(f->family, f->group); > - if (err) > - goto error; > - } > } > > return 0; > diff --git a/datapath/datapath.h b/datapath/datapath.h > index d81e05c..57bffa6 100644 > --- a/datapath/datapath.h > +++ b/datapath/datapath.h > @@ -184,7 +184,7 @@ static inline struct vport *ovs_vport_ovsl(const struct > datapath *dp, int port_n > } > > extern struct notifier_block ovs_dp_device_notifier; > -extern struct genl_multicast_group ovs_dp_vport_multicast_group; > +extern struct genl_family dp_vport_genl_family; > > void ovs_dp_process_received_packet(struct vport *, struct sk_buff *); > void ovs_dp_detach_port(struct vport *); > diff --git a/datapath/dp_notify.c b/datapath/dp_notify.c > index 0b22d0c..e96b242 100644 > --- a/datapath/dp_notify.c > +++ b/datapath/dp_notify.c > @@ -35,15 +35,14 @@ static void dp_detach_port_notify(struct vport *vport) > OVS_VPORT_CMD_DEL); > ovs_dp_detach_port(vport); > if (IS_ERR(notify)) { > - netlink_set_err(ovs_dp_get_net(dp)->genl_sock, 0, > - ovs_dp_vport_multicast_group.id, > - PTR_ERR(notify)); > + genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0, > + 0, PTR_ERR(notify)); > return; > } > > - genlmsg_multicast_netns(ovs_dp_get_net(dp), notify, 0, > - ovs_dp_vport_multicast_group.id, > - GFP_KERNEL); > + genlmsg_multicast_netns(&dp_vport_genl_family, > + ovs_dp_get_net(dp), notify, 0, > + 0, GFP_KERNEL); > } > > void ovs_dp_notify_wq(struct work_struct *work) > diff --git a/datapath/linux/Modules.mk b/datapath/linux/Modules.mk > index 1e76305..4331222 100644 > --- a/datapath/linux/Modules.mk > +++ b/datapath/linux/Modules.mk > @@ -46,7 +46,9 @@ openvswitch_headers += \ > linux/compat/include/linux/netdevice.h \ > linux/compat/include/linux/netdev_features.h \ > linux/compat/include/linux/netlink.h \ > + linux/compat/include/linux/percpu.h \ > linux/compat/include/linux/poison.h \ > + linux/compat/include/linux/random.h \ > linux/compat/include/linux/rculist.h \ > linux/compat/include/linux/rcupdate.h \ > linux/compat/include/linux/reciprocal_div.h \ > diff --git a/datapath/linux/compat/genetlink-openvswitch.c > b/datapath/linux/compat/genetlink-openvswitch.c > index 359f916..c573c2a 100644 > --- a/datapath/linux/compat/genetlink-openvswitch.c > +++ b/datapath/linux/compat/genetlink-openvswitch.c > @@ -1,17 +1,27 @@ > #include <net/genetlink.h> > #include <linux/version.h> > > -/* This is analogous to rtnl_notify() but uses genl_sock instead of rtnl. > - * > - * This is not (yet) in any upstream kernel. */ > -void genl_notify(struct sk_buff *skb, struct net *net, u32 portid, u32 group, > +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0) > +void genl_notify(struct genl_family *family, > + struct sk_buff *skb, struct net *net, u32 portid, u32 group, > struct nlmsghdr *nlh, gfp_t flags) > { > struct sock *sk = net->genl_sock; > int report = 0; > + struct genl_multicast_group *grp; > + int i = 0; > > if (nlh) > report = nlmsg_report(nlh); > > - nlmsg_notify(sk, skb, portid, group, report, flags); > + list_for_each_entry(grp, &family->mcast_groups, list) { > + if (group == grp->id) > + break; > + i++; > + } > + > + if (WARN_ON_ONCE(grp == NULL)) > + return; > + nlmsg_notify(sk, skb, portid, grp->id, report, flags); > } > +#endif /* kernel version < 3.13.0 */ > diff --git a/datapath/linux/compat/include/linux/percpu.h > b/datapath/linux/compat/include/linux/percpu.h > new file mode 100644 > index 0000000..114e8d8 > --- /dev/null > +++ b/datapath/linux/compat/include/linux/percpu.h > @@ -0,0 +1,18 @@ > +#ifndef __LINUX_PERCPU_WRAP_H > +#define __LINUX_PERCPU_WRAP_H > + > +#include <linux/version.h> > + > +#include_next <linux/percpu.h> > + > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0) > +struct dp_stats_percpu; > +struct pcpu_tstats; > +void ovs_init_per_cpu_dp_stats(struct dp_stats_percpu *); > +void ovs_init_per_cpu_t_stats(struct pcpu_tstats *); > +#else > +#define ovs_init_per_cpu_dp_stats(a) (void)(a) > +#define ovs_init_per_cpu_t_stats(a) (void)(a) > +#endif /* KERNEL_VERSION(3,13,0) */ > + > +#endif /* __LINUX_PERCPU_WRAP_H */ > diff --git a/datapath/linux/compat/include/linux/random.h > b/datapath/linux/compat/include/linux/random.h > new file mode 100644 > index 0000000..17d8ee2 > --- /dev/null > +++ b/datapath/linux/compat/include/linux/random.h > @@ -0,0 +1,12 @@ > +#ifndef __LINUX_RANDOM_WRAP_H > +#define __LINUX_RANDOM_WRAP_H > + > +#include <linux/version.h> > + > +#include_next <linux/random.h> > + > +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,12) > +#define prandom_u32 random32 > +#endif /* KERNEL_VERSION(3,13,0) */ > + > +#endif /* __LINUX_RANDOM_WRAP_H */ > diff --git a/datapath/linux/compat/include/linux/skbuff.h > b/datapath/linux/compat/include/linux/skbuff.h > index de0c56a..c925788 100644 > --- a/datapath/linux/compat/include/linux/skbuff.h > +++ b/datapath/linux/compat/include/linux/skbuff.h > @@ -260,7 +260,7 @@ static inline __u32 skb_get_rxhash(struct sk_buff *skb) > > #if LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0) > unsigned int skb_zerocopy_headlen(const struct sk_buff *from); > -void skb_zerocopy(struct sk_buff *to, const struct sk_buff *from, int len, > +int skb_zerocopy(struct sk_buff *to, const struct sk_buff *from, int len, > int hlen); > #endif > > diff --git a/datapath/linux/compat/include/net/genetlink.h > b/datapath/linux/compat/include/net/genetlink.h > index 09ee23b..1aeff12 100644 > --- a/datapath/linux/compat/include/net/genetlink.h > +++ b/datapath/linux/compat/include/net/genetlink.h > @@ -17,8 +17,43 @@ > #define portid pid > #endif > > -extern void genl_notify(struct sk_buff *skb, struct net *net, u32 portid, > - u32 group, struct nlmsghdr *nlh, gfp_t flags); > +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0) > +#define genl_notify rpl__genl_notify > +void genl_notify(struct genl_family *family, > + struct sk_buff *skb, struct net *net, u32 portid, u32 group, > + struct nlmsghdr *nlh, gfp_t flags); > + > +#define genl_set_err rpl__genl_set_err > +static inline int genl_set_err(struct genl_family *family, struct net *net, > + u32 portid, u32 group, int code) > +{ > + struct genl_multicast_group *grp; > + > + list_for_each_entry(grp, &family->mcast_groups, list) { > + if (group == grp->id) > + break; > + } > + > + return netlink_set_err(net->genl_sock, portid, grp->id, code); > +} > + > +#define genlmsg_multicast_netns rpl__genlmsg_multicast_netns > +static inline int genlmsg_multicast_netns(struct genl_family *family, > + struct net *net, struct sk_buff > *skb, > + u32 portid, unsigned int group, > gfp_t flags) > +{ > + struct genl_multicast_group *grp; > + > + list_for_each_entry(grp, &family->mcast_groups, list) { > + if (group == grp->id) > + break; > + } > + > + if (WARN_ON_ONCE(grp == NULL)) > + return -EINVAL; > + return nlmsg_multicast(net->genl_sock, skb, portid, grp->id, flags); > +} > +#endif > > #if LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0) > static inline struct sk_buff *genlmsg_new_unicast(size_t payload, > @@ -29,4 +64,61 @@ static inline struct sk_buff *genlmsg_new_unicast(size_t > payload, > } > #endif > > +struct genl_family_and_ops_ovs { > + struct genl_family *family; > + struct genl_ops *ops; > + int n_ops; > + struct genl_multicast_group *group; > +}; > + > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0) > +static inline int genl_register_family_ovs(const struct > genl_family_and_ops_ovs *f) > +{ > + f->family->ops = f->ops; > + f->family->n_ops = f->n_ops; > + f->family->mcgrps = f->group; > + f->family->n_mcgrps = f->group ? 1 : 0; > + > + return genl_register_family(f->family); > +} > +#else > +static inline int genl_register_family_ovs(const struct > genl_family_and_ops_ovs *f) > +{ > + int err; > + > + err = genl_register_family_with_ops(f->family, f->ops, f->n_ops); > + if (err) > + goto error; > + > + if (f->group) { > + err = genl_register_mc_group(f->family, f->group); > + if (err) > + goto error; > + } > +error: > + return err; > +} > +#endif > + > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0) > +static inline int netlink_has_listeners_ovs(struct sock *genl_sock, > + const struct genl_multicast_group > *grp, > + unsigned int id) > +{ > + /* Unused argument */ > + (void)(grp); > + > + return netlink_has_listeners(genl_sock, id); > +} > +#else > +static inline int netlink_has_listeners_ovs(struct sock *genl_sock, > + const struct genl_multicast_group > *grp, > + unsigned int id) > +{ > + /* Unused arguments */ > + (void)(id); > + > + return netlink_has_listeners(genl_sock, grp->id); > +} > +#endif > #endif /* genetlink.h */ > diff --git a/datapath/linux/compat/include/net/ip.h > b/datapath/linux/compat/include/net/ip.h > index 4193d32..4fd0b2c 100644 > --- a/datapath/linux/compat/include/net/ip.h > +++ b/datapath/linux/compat/include/net/ip.h > @@ -12,4 +12,16 @@ static inline bool ip_is_fragment(const struct iphdr *iph) > } > #endif > > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0) > +#define inet_get_local_port_range_ovs(a, b, c) \ > + inet_get_local_port_range(a, b, c) > +#else > +static inline void inet_get_local_port_range_ovs(struct net *net, int *low, > + int *high) > +{ > + (void)(net); > + inet_get_local_port_range(low, high); > +} > +#endif > + > #endif > diff --git a/datapath/linux/compat/skbuff-openvswitch.c > b/datapath/linux/compat/skbuff-openvswitch.c > index ddd7bc8..bcba930 100644 > --- a/datapath/linux/compat/skbuff-openvswitch.c > +++ b/datapath/linux/compat/skbuff-openvswitch.c > @@ -62,7 +62,7 @@ skb_zerocopy_headlen(const struct sk_buff *from) > * The `hlen` as calculated by skb_zerocopy_headlen() specifies the > * headroom in the `to` buffer. > */ > -void > +int > skb_zerocopy(struct sk_buff *to, const struct sk_buff *from, int len, int > hlen) > { > int i, j = 0; > @@ -75,7 +75,7 @@ skb_zerocopy(struct sk_buff *to, const struct sk_buff > *from, int len, int hlen) > /* dont bother with small payloads */ > if (len <= skb_tailroom(to)) { > skb_copy_bits(from, 0, skb_put(to, len), len); > - return; > + return 0; > } > > if (hlen) { > @@ -107,5 +107,7 @@ skb_zerocopy(struct sk_buff *to, const struct sk_buff > *from, int len, int hlen) > j++; > } > skb_shinfo(to)->nr_frags = j; > + > + return 0; > } > #endif > diff --git a/datapath/linux/compat/utils.c b/datapath/linux/compat/utils.c > index dc4df2a..c08b74c 100644 > --- a/datapath/linux/compat/utils.c > +++ b/datapath/linux/compat/utils.c > @@ -6,6 +6,7 @@ > #include <linux/mm.h> > #include <linux/net.h> > #include <net/checksum.h> > +#include <net/ip.h> > #include <linux/string.h> > #include <linux/types.h> > #include <linux/percpu.h> > @@ -38,6 +39,7 @@ void inet_proto_csum_replace16(__sum16 *sum, struct sk_buff > *skb, > } > #endif > > +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0) > bool __net_get_random_once(void *buf, int nbytes, bool *done, > atomic_t *done_key) > { > @@ -58,3 +60,30 @@ bool __net_get_random_once(void *buf, int nbytes, bool > *done, > > return true; > } > +#endif > + > +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0) > +#include "datapath.h" > +#include "vport.h" > +void ovs_init_per_cpu_dp_stats(struct dp_stats_percpu *stats) > +{ > + int i; > + > + for_each_possible_cpu(i) { > + struct dp_stats_percpu *dpath_stats; > + dpath_stats = per_cpu_ptr(stats, i); > + u64_stats_init(&dpath_stats->sync); > + } > +} > + > +void ovs_init_per_cpu_t_stats(struct pcpu_tstats *stats) > +{ > + int i; > + > + for_each_possible_cpu(i) { > + struct pcpu_tstats *vport_stats; > + vport_stats = per_cpu_ptr(stats, i); > + u64_stats_init(&vport_stats->syncp); > + } > +} > +#endif > diff --git a/datapath/vport-lisp.c b/datapath/vport-lisp.c > index e33cffe..a1e4ca2 100644 > --- a/datapath/vport-lisp.c > +++ b/datapath/vport-lisp.c > @@ -163,7 +163,7 @@ static __be64 instance_id_to_tunnel_id(__u8 *iid) > /* Compute source UDP port for outgoing packet. > * Currently we use the flow hash. > */ > -static u16 get_src_port(struct sk_buff *skb) > +static u16 get_src_port(struct net *net, struct sk_buff *skb) > { > u32 hash = skb_get_rxhash(skb); > unsigned int range; > @@ -177,7 +177,7 @@ static u16 get_src_port(struct sk_buff *skb) > sizeof(*pkt_key) / sizeof(u32), 0); > } > > - inet_get_local_port_range(&low, &high); > + inet_get_local_port_range_ovs(net, &low, &high); > range = (high - low) + 1; > return (((u64) hash * range) >> 32) + low; > } > @@ -185,13 +185,14 @@ static u16 get_src_port(struct sk_buff *skb) > static void lisp_build_header(const struct vport *vport, > struct sk_buff *skb) > { > + struct net *net = ovs_dp_get_net(vport->dp); > struct lisp_port *lisp_port = lisp_vport(vport); > struct udphdr *udph = udp_hdr(skb); > struct lisphdr *lisph = (struct lisphdr *)(udph + 1); > const struct ovs_key_ipv4_tunnel *tun_key = OVS_CB(skb)->tun_key; > > udph->dest = lisp_port->dst_port; > - udph->source = htons(get_src_port(skb)); > + udph->source = htons(get_src_port(net, skb)); > udph->check = 0; > udph->len = htons(skb->len - skb_transport_offset(skb)); > > diff --git a/datapath/vport-vxlan.c b/datapath/vport-vxlan.c > index d264785..4b36253 100644 > --- a/datapath/vport-vxlan.c > +++ b/datapath/vport-vxlan.c > @@ -139,6 +139,7 @@ error: > > static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb) > { > + struct net *net = ovs_dp_get_net(vport->dp); > struct vxlan_port *vxlan_port = vxlan_vport(vport); > __be16 dst_port = inet_sport(vxlan_port->vs->sock->sk); > struct rtable *rt; > @@ -172,7 +173,7 @@ static int vxlan_tnl_send(struct vport *vport, struct > sk_buff *skb) > > skb->local_df = 1; > > - inet_get_local_port_range(&port_min, &port_max); > + inet_get_local_port_range_ovs(net, &port_min, &port_max); > src_port = vxlan_src_port(port_min, port_max, skb); > > err = vxlan_xmit_skb(vxlan_port->vs, rt, skb, > diff --git a/datapath/vport.c b/datapath/vport.c > index 7f12acc..a62f214 100644 > --- a/datapath/vport.c > +++ b/datapath/vport.c > @@ -145,6 +145,8 @@ struct vport *ovs_vport_alloc(int priv_size, const struct > vport_ops *ops, > return ERR_PTR(-ENOMEM); > } > > + ovs_init_per_cpu_t_stats(vport->percpu_stats); > + > spin_lock_init(&vport->stats_lock); > > return vport; > -- > 1.8.5.3 > > _______________________________________________ > dev mailing list > dev@openvswitch.org > http://openvswitch.org/mailman/listinfo/dev _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev