/*
- * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 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 "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_LLDP, "lldp", "Consists of LLDP packets") \
+ SPR(SLOW_CONTROLLER, "controller", \
+ "Sends \"packet-in\" messages to the OpenFlow controller") \
+ SPR(SLOW_ACTION, "action", \
+ "Uses action(s) not supported by datapath")
+
+/* Indexes for slow-path reasons. Client code uses "enum slow_path_reason"
+ * values instead of these, these are just a way to construct those. */
+enum {
+#define SPR(ENUM, STRING, EXPLANATION) ENUM##_INDEX,
+ SLOW_PATH_REASONS
+#undef SPR
+};
+
+/* Reasons why a subfacet might not be fast-pathable.
+ *
+ * Each reason is a separate bit to allow reasons to be combined. */
+enum slow_path_reason {
+#define SPR(ENUM, STRING, EXPLANATION) ENUM = 1 << ENUM##_INDEX,
+ SLOW_PATH_REASONS
+#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)
int odp_actions_from_string(const char *, const struct simap *port_names,
struct ofpbuf *odp_actions);
+/* A map from odp port number to its name. */
+struct odp_portno_names {
+ struct hmap_node hmap_node; /* A node in a port number to name hmap. */
+ odp_port_t port_no; /* Port number in the datapath. */
+ char *name; /* Name associated with the above 'port_no'. */
+};
+
+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);
/* 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_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 572
*
* 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 == 35);
/* 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
uint32_t keybuf[DIV_ROUND_UP(ODPUTIL_FLOW_KEY_BYTES, 4)];
};
-enum odp_key_fitness odp_tun_key_from_attr(const struct nlattr *,
+enum odp_key_fitness odp_tun_key_from_attr(const struct nlattr *, bool udpif,
struct flow_tnl *);
+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,
- struct ds *, bool verbose);
+ 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 *);
-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 support for various fields. This defines how flows will be
+ * serialised. */
+struct odp_support {
+ /* Maximum number of MPLS label stack entries to serialise in a mask. */
+ size_t max_mpls_depth;
+
+ /* If this is true, then recirculation fields will always be serialised. */
+ bool recirc;
+
+ /* If true, serialise the corresponding OVS_KEY_ATTR_CONN_* field. */
+ bool ct_state;
+ bool ct_zone;
+ bool ct_mark;
+ bool 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 */
+ bool ct_state_nat;
+};
+
+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;
+
+ /* 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
+ * number rather than a datapath port number). Instead, if 'odp_in_port'
+ * is anything other than ODPP_NONE, it is included in 'buf' as the input
+ * port. */
+ odp_port_t odp_in_port;
+
+ /* Indicates support for various fields. If the datapath supports a field,
+ * then it will always be serialised. */
+ struct odp_support support;
+
+ /* 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 *);
uint32_t odp_flow_key_hash(const struct nlattr *, size_t);
+/* 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);
+
/* How well a kernel-provided flow key (a sequence of OVS_KEY_ATTR_*
* attributes) matches OVS userspace expectations.
*
};
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,
+enum odp_key_fitness odp_flow_key_to_mask(const struct nlattr *mask_key,
+ size_t mask_key_len,
+ const struct nlattr *flow_key,
+ size_t flow_key_len,
+ struct flow_wildcards *mask,
const struct flow *flow);
+
+enum odp_key_fitness odp_flow_key_to_flow_udpif(const struct nlattr *, size_t,
+ struct flow *);
+enum odp_key_fitness odp_flow_key_to_mask_udpif(const struct nlattr *mask_key,
+ size_t mask_key_len,
+ const struct nlattr *flow_key,
+ size_t flow_key_len,
+ struct flow_wildcards *mask,
+ const struct flow *flow);
+
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);
-void commit_odp_actions(const struct flow *, struct flow *base,
- struct ofpbuf *odp_actions,
- struct flow_wildcards *wc);
+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,
+ bool use_masked);
\f
/* ofproto-dpif interface.
*
} flow_sample;
struct {
- uint16_t type; /* USER_ACTION_COOKIE_IPFIX. */
+ uint16_t type; /* USER_ACTION_COOKIE_IPFIX. */
+ odp_port_t output_odp_port; /* The output odp port. */
} ipfix;
};
BUILD_ASSERT_DECL(sizeof(union user_action_cookie) == 16);
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);
-
-/* Reasons why a subfacet might not be fast-pathable. */
-enum slow_path_reason {
- SLOW_CFM = 1, /* CFM packets need per-packet processing. */
- SLOW_LACP, /* LACP packets need per-packet processing. */
- SLOW_STP, /* STP packets need per-packet processing. */
- SLOW_BFD, /* BFD packets need per-packet processing. */
- SLOW_CONTROLLER, /* Packets must go to OpenFlow controller. */
- __SLOW_MAX
-};
+void odp_put_tnl_push_action(struct ofpbuf *odp_actions,
+ struct ovs_action_push_tnl *data);
#endif /* odp-util.h */
projects / cascardo / ovs.git / blobdiff