e298e50570
With mega flow implementation ovs flow can be shared between multiple CPUs which makes stats updates highly contended operation. This patch uses per-CPU stats in cases where a flow is likely to be shared (if there is a wildcard in the 5-tuple and therefore likely to be spread by RSS). In other situations, it uses the current strategy, saving memory and allocation time. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com>
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* Copyright (c) 2007-2013 Nicira, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#ifndef FLOW_NETLINK_H
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#define FLOW_NETLINK_H 1
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#include <linux/kernel.h>
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#include <linux/netlink.h>
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#include <linux/openvswitch.h>
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/rcupdate.h>
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#include <linux/if_ether.h>
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#include <linux/in6.h>
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#include <linux/jiffies.h>
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#include <linux/time.h>
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#include <linux/flex_array.h>
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#include <net/inet_ecn.h>
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#include <net/ip_tunnels.h>
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#include "flow.h"
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void ovs_match_init(struct sw_flow_match *match,
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struct sw_flow_key *key, struct sw_flow_mask *mask);
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int ovs_nla_put_flow(const struct sw_flow_key *,
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const struct sw_flow_key *, struct sk_buff *);
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int ovs_nla_get_flow_metadata(struct sw_flow *flow,
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const struct nlattr *attr);
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int ovs_nla_get_match(struct sw_flow_match *match,
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bool *exact_5tuple,
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const struct nlattr *,
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const struct nlattr *);
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int ovs_nla_copy_actions(const struct nlattr *attr,
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const struct sw_flow_key *key, int depth,
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struct sw_flow_actions **sfa);
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int ovs_nla_put_actions(const struct nlattr *attr,
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int len, struct sk_buff *skb);
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struct sw_flow_actions *ovs_nla_alloc_flow_actions(int actions_len);
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void ovs_nla_free_flow_actions(struct sw_flow_actions *);
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#endif /* flow_netlink.h */
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