/*
- * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <stddef.h>
#include <stdint.h>
#include <string.h>
-#include <linux/openvswitch.h>
+#include "flow.h"
#include "hash.h"
-#include "hmap.h"
+#include "openvswitch/hmap.h"
+#include "openvswitch/ofp-actions.h"
+#include "openvswitch/uuid.h"
+#include "odp-netlink.h"
#include "openflow/openflow.h"
#include "util.h"
struct ds;
-struct flow;
-struct flow_tnl;
-struct flow_wildcards;
struct nlattr;
struct ofpbuf;
struct simap;
struct pkt_metadata;
#define SLOW_PATH_REASONS \
- /* These reasons are mutually exclusive. */ \
SPR(SLOW_CFM, "cfm", "Consists of CFM packets") \
SPR(SLOW_BFD, "bfd", "Consists of BFD packets") \
SPR(SLOW_LACP, "lacp", "Consists of LACP packets") \
SPR(SLOW_STP, "stp", "Consists of STP packets") \
- SPR(SLOW_CONTROLLER, "controller", \
- "Sends \"packet-in\" messages to the OpenFlow controller") \
+ SPR(SLOW_LLDP, "lldp", "Consists of LLDP packets") \
SPR(SLOW_ACTION, "action", \
- "Uses action(s) not supported by datapath")
+ "Uses action(s) not supported by datapath") \
+ SPR(SLOW_MATCH, "match", \
+ "Datapath can't match specifically enough")
/* Indexes for slow-path reasons. Client code uses "enum slow_path_reason"
* values instead of these, these are just a way to construct those. */
#undef SPR
};
-/* Reasons why a subfacet might not be fast-pathable.
+/* Reasons why a flow might not be fast-pathable.
*
* Each reason is a separate bit to allow reasons to be combined. */
enum slow_path_reason {
#undef SPR
};
+/* Mask of all slow_path_reasons. */
+enum {
+ SLOW_PATH_REASON_MASK = 0
+#define SPR(ENUM, STRING, EXPLANATION) | 1 << ENUM##_INDEX
+ SLOW_PATH_REASONS
+#undef SPR
+};
+
const char *slow_path_reason_to_explanation(enum slow_path_reason);
#define ODPP_LOCAL ODP_PORT_C(OVSP_LOCAL)
#define ODPP_NONE ODP_PORT_C(UINT32_MAX)
void format_odp_actions(struct ds *, const struct nlattr *odp_actions,
- size_t actions_len);
+ size_t actions_len, const struct hmap *portno_names);
int odp_actions_from_string(const char *, const struct simap *port_names,
struct ofpbuf *odp_actions);
void odp_portno_names_set(struct hmap *portno_names, odp_port_t port_no,
char *port_name);
void odp_portno_names_destroy(struct hmap *portno_names);
+void odp_portno_name_format(const struct hmap *portno_names,
+ odp_port_t, struct ds *);
+
/* The maximum number of bytes that odp_flow_key_from_flow() appends to a
* buffer. This is the upper bound on the length of a nlattr-formatted flow
* key that ovs-vswitchd fully understands.
* - OVS_TUNNEL_KEY_ATTR_ID 8 -- 4 12
* - OVS_TUNNEL_KEY_ATTR_IPV4_SRC 4 -- 4 8
* - OVS_TUNNEL_KEY_ATTR_IPV4_DST 4 -- 4 8
+ * - OVS_TUNNEL_KEY_ATTR_IPV6_SRC 16 -- 4 20
+ * - OVS_TUNNEL_KEY_ATTR_IPV6_DST 16 -- 4 20
* - OVS_TUNNEL_KEY_ATTR_TOS 1 3 4 8
* - OVS_TUNNEL_KEY_ATTR_TTL 1 3 4 8
* - OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT 0 -- 4 4
* - OVS_TUNNEL_KEY_ATTR_CSUM 0 -- 4 4
+ * - OVS_TUNNEL_KEY_ATTR_OAM 0 -- 4 4
+ * - OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS 256 -- 4 260
+ * - OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS - -- - - (shared with _GENEVE_OPTS)
* OVS_KEY_ATTR_IN_PORT 4 -- 4 8
* OVS_KEY_ATTR_SKB_MARK 4 -- 4 8
+ * OVS_KEY_ATTR_DP_HASH 4 -- 4 8
+ * OVS_KEY_ATTR_RECIRC_ID 4 -- 4 8
+ * OVS_KEY_ATTR_CT_STATE 4 -- 4 8
+ * OVS_KEY_ATTR_CT_ZONE 2 2 4 8
+ * OVS_KEY_ATTR_CT_MARK 4 -- 4 8
+ * OVS_KEY_ATTR_CT_LABEL 16 -- 4 20
+ * OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6 40 -- 4 44
+ * OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4 - -- - - (exclusive of_CT_ORIG_TUPLE_IPV6)
* OVS_KEY_ATTR_ETHERNET 12 -- 4 16
* OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (outer VLAN ethertype)
- * OVS_KEY_ATTR_8021Q 4 -- 4 8
+ * OVS_KEY_ATTR_VLAN 2 2 4 8
* OVS_KEY_ATTR_ENCAP 0 -- 4 4 (VLAN encapsulation)
* OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (inner VLAN ethertype)
* OVS_KEY_ATTR_IPV6 40 -- 4 44
* OVS_KEY_ATTR_ICMPV6 2 2 4 8
* OVS_KEY_ATTR_ND 28 -- 4 32
* ----------------------------------------------------------
- * total 208
+ * total 616
*
* We include some slack space in case the calculation isn't quite right or we
* add another field and forget to adjust this value.
*/
-#define ODPUTIL_FLOW_KEY_BYTES 256
+#define ODPUTIL_FLOW_KEY_BYTES 640
+BUILD_ASSERT_DECL(FLOW_WC_SEQ == 42);
/* A buffer with sufficient size and alignment to hold an nlattr-formatted flow
* key. An array of "struct nlattr" might not, in theory, be sufficiently
};
enum odp_key_fitness odp_tun_key_from_attr(const struct nlattr *,
- struct flow_tnl *);
+ struct flow_tnl *, char **errorp);
+enum odp_key_fitness odp_nsh_key_from_attr(const struct nlattr *,
+ struct ovs_key_nsh *,
+ struct ovs_key_nsh *,
+ char **errorp);
+enum odp_key_fitness odp_nsh_hdr_from_attr(const struct nlattr *,
+ struct nsh_hdr *, size_t);
+
+int odp_ufid_from_string(const char *s_, ovs_u128 *ufid);
+void odp_format_ufid(const ovs_u128 *ufid, struct ds *);
void odp_flow_format(const struct nlattr *key, size_t key_len,
const struct nlattr *mask, size_t mask_len,
const struct hmap *portno_names, struct ds *,
bool verbose);
void odp_flow_key_format(const struct nlattr *, size_t, struct ds *);
-int odp_flow_from_string(const char *s,
- const struct simap *port_names,
- struct ofpbuf *, struct ofpbuf *);
+int odp_flow_from_string(const char *s, const struct simap *port_names,
+ struct ofpbuf *, struct ofpbuf *, char **errorp);
+
+/* ODP_SUPPORT_FIELD(TYPE, FIELD_NAME, FIELD_DESCRIPTION)
+ *
+ * Each 'ODP_SUPPORT_FIELD' defines a member in 'struct odp_support',
+ * and represents support for related OVS_KEY_ATTR_* fields.
+ * They are defined as macros to keep 'dpif_show_support()' in sync
+ * as new fields are added. */
+#define ODP_SUPPORT_FIELDS \
+ /* Maximum number of 802.1q VLAN headers to serialize in a mask. */ \
+ ODP_SUPPORT_FIELD(size_t, max_vlan_headers, "Max VLAN headers") \
+ /* Maximum number of MPLS label stack entries to serialise in a mask. */ \
+ ODP_SUPPORT_FIELD(size_t, max_mpls_depth, "Max MPLS depth") \
+ /* If this is true, then recirculation fields will always be \
+ * serialised. */ \
+ ODP_SUPPORT_FIELD(bool, recirc, "Recirc") \
+ /* If true, serialise the corresponding OVS_KEY_ATTR_CONN_* field. */ \
+ ODP_SUPPORT_FIELD(bool, ct_state, "CT state") \
+ ODP_SUPPORT_FIELD(bool, ct_zone, "CT zone") \
+ ODP_SUPPORT_FIELD(bool, ct_mark, "CT mark") \
+ ODP_SUPPORT_FIELD(bool, ct_label, "CT label") \
+ \
+ /* If true, it means that the datapath supports the NAT bits in \
+ * 'ct_state'. The above 'ct_state' member must be true for this \
+ * to make sense */ \
+ ODP_SUPPORT_FIELD(bool, ct_state_nat, "CT state NAT") \
+ \
+ /* Conntrack original direction tuple matching * supported. */ \
+ ODP_SUPPORT_FIELD(bool, ct_orig_tuple, "CT orig tuple") \
+ ODP_SUPPORT_FIELD(bool, ct_orig_tuple6, "CT orig tuple for IPv6") \
+ \
+ /* If true, it means that the datapath supports the IPv6 Neigh \
+ * Discovery Extension bits. */ \
+ ODP_SUPPORT_FIELD(bool, nd_ext, "IPv6 ND Extension")
+
+/* Indicates support for various fields. This defines how flows will be
+ * serialised. */
+struct odp_support {
+#define ODP_SUPPORT_FIELD(TYPE, NAME, TITLE) TYPE NAME;
+ ODP_SUPPORT_FIELDS
+#undef ODP_SUPPORT_FIELD
+};
+
+struct odp_flow_key_parms {
+ /* The flow and mask to be serialized. In the case of masks, 'flow'
+ * is used as a template to determine how to interpret 'mask'. For
+ * example, the 'dl_type' of 'mask' describes the mask, but it doesn't
+ * indicate whether the other fields should be interpreted as ARP, IPv4,
+ * IPv6, etc. */
+ const struct flow *flow;
+ const struct flow *mask;
+
+ /* Indicates support for various fields. If the datapath supports a field,
+ * then it will always be serialised. */
+ struct odp_support support;
-void odp_flow_key_from_flow(struct ofpbuf *, const struct flow *,
- odp_port_t odp_in_port);
-void odp_flow_key_from_mask(struct ofpbuf *, const struct flow *mask,
- const struct flow *flow, uint32_t odp_in_port);
+ /* Indicates if we are probing datapath capability. If true, ignore the
+ * configured flow limits. */
+ bool probe;
-uint32_t odp_flow_key_hash(const struct nlattr *, size_t);
+ /* The netlink formatted version of the flow. It is used in cases where
+ * the mask cannot be constructed from the OVS internal representation
+ * and needs to see the original form. */
+ const struct ofpbuf *key_buf;
+};
+
+void odp_flow_key_from_flow(const struct odp_flow_key_parms *, struct ofpbuf *);
+void odp_flow_key_from_mask(const struct odp_flow_key_parms *, struct ofpbuf *);
+
+void odp_flow_key_hash(const void *key, size_t key_len, ovs_u128 *hash);
/* Estimated space needed for metadata. */
enum { ODP_KEY_METADATA_SIZE = 9 * 8 };
-void odp_key_from_pkt_metadata(struct ofpbuf *, const struct pkt_metadata *);
-void odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
- struct pkt_metadata *md);
+void odp_key_from_dp_packet(struct ofpbuf *, const struct dp_packet *);
+void odp_key_to_dp_packet(const struct nlattr *key, size_t key_len,
+ struct dp_packet *md);
/* How well a kernel-provided flow key (a sequence of OVS_KEY_ATTR_*
* attributes) matches OVS userspace expectations.
ODP_FIT_ERROR, /* The key was invalid. */
};
enum odp_key_fitness odp_flow_key_to_flow(const struct nlattr *, size_t,
- struct flow *);
-enum odp_key_fitness odp_flow_key_to_mask(const struct nlattr *key, size_t len,
- struct flow *mask,
- const struct flow *flow);
+ struct flow *, char **errorp);
+enum odp_key_fitness odp_flow_key_to_mask(const struct nlattr *mask_key,
+ size_t mask_key_len,
+ struct flow_wildcards *mask,
+ const struct flow *flow,
+ char **errorp);
+int parse_key_and_mask_to_match(const struct nlattr *key, size_t key_len,
+ const struct nlattr *mask, size_t mask_len,
+ struct match *match);
+
const char *odp_key_fitness_to_string(enum odp_key_fitness);
void commit_odp_tunnel_action(const struct flow *, struct flow *base,
- struct ofpbuf *odp_actions);
+ struct ofpbuf *odp_actions,
+ const char *tnl_type);
+void commit_masked_set_action(struct ofpbuf *odp_actions,
+ enum ovs_key_attr key_type, const void *key,
+ const void *mask, size_t key_size);
enum slow_path_reason commit_odp_actions(const struct flow *,
struct flow *base,
struct ofpbuf *odp_actions,
struct flow_wildcards *wc,
- int *mpls_depth_delta);
+ bool use_masked,
+ bool pending_encap,
+ bool pending_decap,
+ struct ofpbuf *encap_data);
\f
/* ofproto-dpif interface.
*
USER_ACTION_COOKIE_SLOW_PATH, /* Userspace must process this flow. */
USER_ACTION_COOKIE_FLOW_SAMPLE, /* Packet for per-flow sampling. */
USER_ACTION_COOKIE_IPFIX, /* Packet for per-bridge IPFIX sampling. */
+ USER_ACTION_COOKIE_CONTROLLER, /* Forward packet to controller. */
};
-/* user_action_cookie is passed as argument to OVS_ACTION_ATTR_USERSPACE.
- * Since it is passed to kernel as u64, its size has to be 8 bytes. */
-union user_action_cookie {
+/* user_action_cookie is passed as argument to OVS_ACTION_ATTR_USERSPACE. */
+struct user_action_cookie {
uint16_t type; /* enum user_action_cookie_type. */
+ ofp_port_t ofp_in_port; /* OpenFlow in port, or OFPP_NONE. */
+ struct uuid ofproto_uuid; /* UUID of ofproto-dpif. */
+
+ union {
+ struct {
+ /* USER_ACTION_COOKIE_SFLOW. */
+ ovs_be16 vlan_tci; /* Destination VLAN TCI. */
+ uint32_t output; /* SFL_FLOW_SAMPLE_TYPE 'output' value. */
+ } sflow;
+
+ struct {
+ /* USER_ACTION_COOKIE_SLOW_PATH. */
+ uint16_t unused;
+ uint32_t reason; /* enum slow_path_reason. */
+ } slow_path;
+
+ struct {
+ /* USER_ACTION_COOKIE_FLOW_SAMPLE. */
+ uint16_t probability; /* Sampling probability. */
+ uint32_t collector_set_id; /* ID of IPFIX collector set. */
+ uint32_t obs_domain_id; /* Observation Domain ID. */
+ uint32_t obs_point_id; /* Observation Point ID. */
+ odp_port_t output_odp_port; /* The output odp port. */
+ enum nx_action_sample_direction direction;
+ } flow_sample;
- struct {
- uint16_t type; /* USER_ACTION_COOKIE_SFLOW. */
- ovs_be16 vlan_tci; /* Destination VLAN TCI. */
- uint32_t output; /* SFL_FLOW_SAMPLE_TYPE 'output' value. */
- } sflow;
-
- struct {
- uint16_t type; /* USER_ACTION_COOKIE_SLOW_PATH. */
- uint16_t unused;
- uint32_t reason; /* enum slow_path_reason. */
- } slow_path;
-
- struct {
- uint16_t type; /* USER_ACTION_COOKIE_FLOW_SAMPLE. */
- uint16_t probability; /* Sampling probability. */
- uint32_t collector_set_id; /* ID of IPFIX collector set. */
- uint32_t obs_domain_id; /* Observation Domain ID. */
- uint32_t obs_point_id; /* Observation Point ID. */
- } flow_sample;
-
- struct {
- uint16_t type; /* USER_ACTION_COOKIE_IPFIX. */
- } ipfix;
+ struct {
+ /* USER_ACTION_COOKIE_IPFIX. */
+ odp_port_t output_odp_port; /* The output odp port. */
+ } ipfix;
+
+ struct {
+ /* USER_ACTION_COOKIE_CONTROLLER. */
+ uint8_t dont_send; /* Don't send the packet to controller. */
+ uint8_t continuation; /* Send packet-in as a continuation. */
+ uint16_t reason;
+ uint32_t recirc_id;
+ ovs_32aligned_be64 rule_cookie;
+ uint16_t controller_id;
+ uint16_t max_len;
+ } controller;
+ };
};
-BUILD_ASSERT_DECL(sizeof(union user_action_cookie) == 16);
+BUILD_ASSERT_DECL(sizeof(struct user_action_cookie) == 48);
size_t odp_put_userspace_action(uint32_t pid,
const void *userdata, size_t userdata_size,
+ odp_port_t tunnel_out_port,
+ bool include_actions,
struct ofpbuf *odp_actions);
void odp_put_tunnel_action(const struct flow_tnl *tunnel,
- struct ofpbuf *odp_actions);
-void odp_put_pkt_mark_action(const uint32_t pkt_mark,
- struct ofpbuf *odp_actions);
+ struct ofpbuf *odp_actions,
+ const char *tnl_type);
+
+void odp_put_tnl_push_action(struct ofpbuf *odp_actions,
+ struct ovs_action_push_tnl *data);
+
+void odp_put_pop_eth_action(struct ofpbuf *odp_actions);
+void odp_put_push_eth_action(struct ofpbuf *odp_actions,
+ const struct eth_addr *eth_src,
+ const struct eth_addr *eth_dst);
+
+struct attr_len_tbl {
+ int len;
+ const struct attr_len_tbl *next;
+ int next_max;
+};
+
+#define ATTR_LEN_INVALID -1
+#define ATTR_LEN_VARIABLE -2
+#define ATTR_LEN_NESTED -3
+extern const struct attr_len_tbl ovs_flow_key_attr_lens[OVS_KEY_ATTR_MAX + 1];
#endif /* odp-util.h */
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