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net: openvswitch: Add support to count upcall packets

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Add support to count upall packets, when kmod of openvswitch
upcall to count the number of packets for upcall succeed and
failed, which is a better way to see how many packets upcalled
on every interfaces.

Signed-off-by: wangchuanlei <wangchuanlei@inspur.com>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
wangchuanlei
2022-12-06 20:38:57 -05:00
committed by David S. Miller
parent e47877c7aa
commit 1933ea365a
4 changed files with 121 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/openvswitch/datapath.c
+41
View File
@@ -209,6 +209,26 @@ static struct vport *new_vport(const struct vport_parms *parms)
return vport;
}
static void ovs_vport_update_upcall_stats(struct sk_buff *skb,
const struct dp_upcall_info *upcall_info,
bool upcall_result)
{
struct vport *p = OVS_CB(skb)->input_vport;
struct vport_upcall_stats_percpu *stats;
if (upcall_info->cmd != OVS_PACKET_CMD_MISS &&
upcall_info->cmd != OVS_PACKET_CMD_ACTION)
return;
stats = this_cpu_ptr(p->upcall_stats);
u64_stats_update_begin(&stats->syncp);
if (upcall_result)
u64_stats_inc(&stats->n_success);
else
u64_stats_inc(&stats->n_fail);
u64_stats_update_end(&stats->syncp);
}
void ovs_dp_detach_port(struct vport *p)
{
ASSERT_OVSL();
@@ -216,6 +236,9 @@ void ovs_dp_detach_port(struct vport *p)
/* First drop references to device. */
hlist_del_rcu(&p->dp_hash_node);
/* Free percpu memory */
free_percpu(p->upcall_stats);
/* Then destroy it. */
ovs_vport_del(p);
}
@@ -305,6 +328,8 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
err = queue_userspace_packet(dp, skb, key, upcall_info, cutlen);
else
err = queue_gso_packets(dp, skb, key, upcall_info, cutlen);
ovs_vport_update_upcall_stats(skb, upcall_info, !err);
if (err)
goto err;
@@ -1826,6 +1851,12 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
goto err_destroy_portids;
}
vport->upcall_stats = netdev_alloc_pcpu_stats(struct vport_upcall_stats_percpu);
if (!vport->upcall_stats) {
err = -ENOMEM;
goto err_destroy_portids;
}
err = ovs_dp_cmd_fill_info(dp, reply, info->snd_portid,
info->snd_seq, 0, OVS_DP_CMD_NEW);
BUG_ON(err < 0);
@@ -2098,6 +2129,9 @@ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb,
OVS_VPORT_ATTR_PAD))
goto nla_put_failure;
if (ovs_vport_get_upcall_stats(vport, skb))
goto nla_put_failure;
if (ovs_vport_get_upcall_portids(vport, skb))
goto nla_put_failure;
@@ -2279,6 +2313,12 @@ restart:
goto exit_unlock_free;
}
vport->upcall_stats = netdev_alloc_pcpu_stats(struct vport_upcall_stats_percpu);
if (!vport->upcall_stats) {
err = -ENOMEM;
goto exit_unlock_free;
}
err = ovs_vport_cmd_fill_info(vport, reply, genl_info_net(info),
info->snd_portid, info->snd_seq, 0,
OVS_VPORT_CMD_NEW, GFP_KERNEL);
@@ -2508,6 +2548,7 @@ static const struct nla_policy vport_policy[OVS_VPORT_ATTR_MAX + 1] = {
[OVS_VPORT_ATTR_OPTIONS] = { .type = NLA_NESTED },
[OVS_VPORT_ATTR_IFINDEX] = { .type = NLA_U32 },
[OVS_VPORT_ATTR_NETNSID] = { .type = NLA_S32 },
[OVS_VPORT_ATTR_UPCALL_STATS] = { .type = NLA_NESTED },
};
static const struct genl_small_ops dp_vport_genl_ops[] = {