write in 30M

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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/net/openvswitch/datapath.h
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@@ -1,19 +1,6 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (c) 2007-2014 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 DATAPATH_H
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@@ -33,8 +20,9 @@
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 #include "meter.h"
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 #include "vport-internal_dev.h"
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-#define DP_MAX_PORTS           USHRT_MAX
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-#define DP_VPORT_HASH_BUCKETS  1024
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+#define DP_MAX_PORTS                USHRT_MAX
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+#define DP_VPORT_HASH_BUCKETS       1024
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+#define DP_MASKS_REBALANCE_INTERVAL 4000
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 /**
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  * struct dp_stats_percpu - per-cpu packet processing statistics for a given
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@@ -50,12 +38,15 @@
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  * @n_mask_hit: Number of masks looked up for flow match.
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  *   @n_mask_hit / (@n_hit + @n_missed)  will be the average masks looked
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  *   up per packet.
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+ * @n_cache_hit: The number of received packets that had their mask found using
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+ * the mask cache.
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  */
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 struct dp_stats_percpu {
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 	u64 n_hit;
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 	u64 n_missed;
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 	u64 n_lost;
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 	u64 n_mask_hit;
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+	u64 n_cache_hit;
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 	struct u64_stats_sync syncp;
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 };
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@@ -95,7 +86,7 @@
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 	u32 max_headroom;
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 	/* Switch meters. */
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-	struct hlist_head *meters;
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+	struct dp_meter_table meter_tbl;
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 };
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 /**
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@@ -144,12 +135,25 @@
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 struct ovs_net {
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 	struct list_head dps;
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 	struct work_struct dp_notify_work;
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+	struct delayed_work masks_rebalance;
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 #if	IS_ENABLED(CONFIG_NETFILTER_CONNCOUNT)
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 	struct ovs_ct_limit_info *ct_limit_info;
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 #endif
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 	/* Module reference for configuring conntrack. */
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 	bool xt_label;
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+};
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+
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+/**
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+ * enum ovs_pkt_hash_types - hash info to include with a packet
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+ * to send to userspace.
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+ * @OVS_PACKET_HASH_SW_BIT: indicates hash was computed in software stack.
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+ * @OVS_PACKET_HASH_L4_BIT: indicates hash is a canonical 4-tuple hash
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+ * over transport ports.
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+ */
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+enum ovs_pkt_hash_types {
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+	OVS_PACKET_HASH_SW_BIT = (1ULL << 32),
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+	OVS_PACKET_HASH_L4_BIT = (1ULL << 33),
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 };
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 extern unsigned int ovs_net_id;
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@@ -231,6 +235,8 @@
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 extern struct notifier_block ovs_dp_device_notifier;
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 extern struct genl_family dp_vport_genl_family;
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+DECLARE_STATIC_KEY_FALSE(tc_recirc_sharing_support);
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+
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 void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key);
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 void ovs_dp_detach_port(struct vport *);
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 int ovs_dp_upcall(struct datapath *, struct sk_buff *,