/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* table. If an identical flow already exists in that table only, then it
* is replaced. If the flow cannot be placed in the specified table,
* either because the table is full or because the table cannot support
- * flows of the given type, the switch replies with an
- * OFPFMFC_ALL_TABLES_FULL error. (A controller can distinguish these
- * cases by comparing the current and maximum number of entries reported
- * in ofp_table_stats.)
+ * flows of the given type, the switch replies with an OFPFMFC_TABLE_FULL
+ * error. (A controller can distinguish these cases by comparing the
+ * current and maximum number of entries reported in ofp_table_stats.)
*
* If the table ID is wildcarded, the switch picks an appropriate table
* itself. If an identical flow already exist in the selected flow table,
NXAST_NOTE, /* struct nx_action_note */
NXAST_SET_TUNNEL64, /* struct nx_action_set_tunnel64 */
NXAST_MULTIPATH, /* struct nx_action_multipath */
- NXAST_AUTOPATH__DEPRECATED, /* struct nx_action_autopath */
+ NXAST_AUTOPATH__OBSOLETE, /* No longer used. */
NXAST_BUNDLE, /* struct nx_action_bundle */
NXAST_BUNDLE_LOAD, /* struct nx_action_bundle */
NXAST_RESUBMIT_TABLE, /* struct nx_action_resubmit */
NXAST_FIN_TIMEOUT, /* struct nx_action_fin_timeout */
NXAST_CONTROLLER, /* struct nx_action_controller */
NXAST_DEC_TTL_CNT_IDS, /* struct nx_action_cnt_ids */
+ NXAST_WRITE_METADATA, /* struct nx_action_write_metadata */
+ NXAST_PUSH_MPLS, /* struct nx_action_push_mpls */
+ NXAST_POP_MPLS, /* struct nx_action_pop_mpls */
+ NXAST_SET_MPLS_TTL, /* struct nx_action_ttl */
+ NXAST_DEC_MPLS_TTL, /* struct nx_action_header */
+ NXAST_STACK_PUSH, /* struct nx_action_stack */
+ NXAST_STACK_POP, /* struct nx_action_stack */
};
/* Header for Nicira-defined actions. */
* The switch will reject actions for which src_ofs+n_bits is greater than the
* width of 'src' or dst_ofs+n_bits is greater than the width of 'dst' with
* error type OFPET_BAD_ACTION, code OFPBAC_BAD_ARGUMENT.
+ *
+ * This action behaves properly when 'src' overlaps with 'dst', that is, it
+ * behaves as if 'src' were copied out to a temporary buffer, then the
+ * temporary buffer copied to 'dst'.
*/
struct nx_action_reg_move {
ovs_be16 type; /* OFPAT_VENDOR. */
};
OFP_ASSERT(sizeof(struct nx_action_reg_load) == 24);
+/* Action structure for NXAST_STACK_PUSH and NXAST_STACK_POP.
+ *
+ * Pushes (or pops) field[offset: offset + n_bits] to (or from)
+ * top of the stack.
+ */
+struct nx_action_stack {
+ ovs_be16 type; /* OFPAT_VENDOR. */
+ ovs_be16 len; /* Length is 16. */
+ ovs_be32 vendor; /* NX_VENDOR_ID. */
+ ovs_be16 subtype; /* NXAST_REG_PUSH or NXAST_REG_POP. */
+ ovs_be16 offset; /* Bit offset into the field. */
+ ovs_be32 field; /* The field used for push or pop. */
+ ovs_be16 n_bits; /* (n_bits + 1) bits of the field. */
+ uint8_t zero[6]; /* Reserved, must be zero. */
+};
+OFP_ASSERT(sizeof(struct nx_action_stack) == 24);
+
/* Action structure for NXAST_NOTE.
*
* This action has no effect. It is variable length. The switch does not
};
OFP_ASSERT(sizeof(struct nx_action_fin_timeout) == 16);
\f
-/* Action structure for NXAST_AUTOPATH.
- *
- * This action performs the following steps in sequence:
- *
- * 1. Hashes the flow using an implementation-defined hash function.
- *
- * The hashed fields' values are drawn from the current state of the
- * flow, including all modifications that have been made by actions up to
- * this point.
- *
- * 2. Selects an OpenFlow 'port'.
- *
- * 'port' is selected in an implementation-defined manner, taking into
- * account 'id' and the hash value calculated in step 1.
- *
- * Generally a switch will have been configured with a set of ports that
- * may be chosen given 'id'. The switch may take into account any number
- * of factors when choosing 'port' from its configured set. Factors may
- * include carrier, load, and the results of configuration protocols such
- * as LACP.
- *
- * 3. Stores 'port' in dst[ofs:ofs+n_bits].
- *
- * The format and semantics of 'dst' and 'ofs_nbits' are similar to those
- * for the NXAST_REG_LOAD action.
- *
- * The switch will reject actions in which ofs+n_bits is greater than the width
- * of 'dst', with error type OFPET_BAD_ACTION, code OFPBAC_BAD_ARGUMENT.
- */
-struct nx_action_autopath {
- ovs_be16 type; /* OFPAT_VENDOR. */
- ovs_be16 len; /* Length is 24. */
- ovs_be32 vendor; /* NX_VENDOR_ID. */
- ovs_be16 subtype; /* NXAST_AUTOPATH. */
-
- /* Where to store the result. */
- ovs_be16 ofs_nbits; /* (ofs << 6) | (n_bits - 1). */
- ovs_be32 dst; /* Destination. */
-
- ovs_be32 id; /* Autopath ID. */
- ovs_be32 pad;
-};
-OFP_ASSERT(sizeof(struct nx_action_autopath) == 24);
-\f
/* Action structure for NXAST_BUNDLE and NXAST_BUNDLE_LOAD.
*
* The bundle actions choose a slave from a supplied list of options.
* value, called "nxm_mask". For each 1-bit in position J in nxm_mask, the
* nx_match matches only packets for which bit J in the given field's value
* matches bit J in nxm_value. A 0-bit in nxm_mask causes the
- * corresponding bits in nxm_value and the field's value to be ignored.
- * (The sense of the nxm_mask bits is the opposite of that used by the
- * "wildcards" member of struct ofp10_match.)
+ * corresponding bit in nxm_value is ignored (it should be 0; Open vSwitch
+ * may enforce this someday), as is the corresponding bit in the field's
+ * value. (The sense of the nxm_mask bits is the opposite of that used by
+ * the "wildcards" member of struct ofp10_match.)
*
* When nxm_hasmask is 1, nxm_length is always even.
*
* otherwise. Only ARP opcodes between 1 and 255 should be specified for
* matching.
*
- * Prereqs: NXM_OF_ETH_TYPE must match 0x0806 exactly.
+ * Prereqs: NXM_OF_ETH_TYPE must match either 0x0806 or 0x8035.
*
* Format: 16-bit integer in network byte order.
*
/* For an Ethernet+IP ARP packet, the source or target protocol address
* in the ARP header. Always 0 otherwise.
*
- * Prereqs: NXM_OF_ETH_TYPE must match 0x0806 exactly.
+ * Prereqs: NXM_OF_ETH_TYPE must match either 0x0806 or 0x8035.
*
* Format: 32-bit integer in network byte order.
*
/* Tunnel ID.
*
- * For a packet received via GRE tunnel including a (32-bit) key, the key is
- * stored in the low 32-bits and the high bits are zeroed. For other packets,
- * the value is 0.
+ * For a packet received via a GRE, VXLAN or LISP tunnel including a (32-bit)
+ * key, the key is stored in the low 32-bits and the high bits are zeroed. For
+ * other packets, the value is 0.
+ *
+ * All zero bits, for packets not received via a keyed tunnel.
*
* Prereqs: None.
*
/* For an Ethernet+IP ARP packet, the source or target hardware address
* in the ARP header. Always 0 otherwise.
*
- * Prereqs: NXM_OF_ETH_TYPE must match 0x0806 exactly.
+ * Prereqs: NXM_OF_ETH_TYPE must match either 0x0806 or 0x8035.
*
* Format: 48-bit Ethernet MAC address.
*
enum nx_flow_format {
NXFF_OPENFLOW10 = 0, /* Standard OpenFlow 1.0 compatible. */
- NXFF_NXM = 2, /* Nicira extended match. */
- NXFF_OPENFLOW12 = 3 /* OpenFlow 1.2 format. */
+ NXFF_NXM = 2 /* Nicira extended match. */
};
/* NXT_SET_FLOW_FORMAT request. */
};
OFP_ASSERT(sizeof(struct nx_flow_monitor_cancel) == 4);
+/* Action structure for NXAST_WRITE_METADATA.
+ *
+ * Modifies the 'mask' bits of the metadata value. */
+struct nx_action_write_metadata {
+ ovs_be16 type; /* OFPAT_VENDOR. */
+ ovs_be16 len; /* Length is 32. */
+ ovs_be32 vendor; /* NX_VENDOR_ID. */
+ ovs_be16 subtype; /* NXAST_WRITE_METADATA. */
+ uint8_t zeros[6]; /* Must be zero. */
+ ovs_be64 metadata; /* Metadata register. */
+ ovs_be64 mask; /* Metadata mask. */
+};
+OFP_ASSERT(sizeof(struct nx_action_write_metadata) == 32);
+
+/* Action structure for NXAST_PUSH_MPLS. */
+struct nx_action_push_mpls {
+ ovs_be16 type; /* OFPAT_VENDOR. */
+ ovs_be16 len; /* Length is 8. */
+ ovs_be32 vendor; /* NX_VENDOR_ID. */
+ ovs_be16 subtype; /* NXAST_PUSH_MPLS. */
+ ovs_be16 ethertype; /* Ethertype */
+ uint8_t pad[4];
+};
+OFP_ASSERT(sizeof(struct nx_action_push_mpls) == 16);
+
+/* Action structure for NXAST_POP_MPLS. */
+struct nx_action_pop_mpls {
+ ovs_be16 type; /* OFPAT_VENDOR. */
+ ovs_be16 len; /* Length is 8. */
+ ovs_be32 vendor; /* NX_VENDOR_ID. */
+ ovs_be16 subtype; /* NXAST_POP_MPLS. */
+ ovs_be16 ethertype; /* Ethertype */
+ uint8_t pad[4];
+};
+OFP_ASSERT(sizeof(struct nx_action_pop_mpls) == 16);
+
+/* Action structure for NXAST_SET_MPLS_TTL. */
+struct nx_action_mpls_ttl {
+ ovs_be16 type; /* OFPAT_VENDOR. */
+ ovs_be16 len; /* Length is 8. */
+ ovs_be32 vendor; /* NX_VENDOR_ID. */
+ ovs_be16 subtype; /* NXAST_SET_MPLS_TTL. */
+ uint8_t ttl; /* TTL */
+ uint8_t pad[5];
+};
+OFP_ASSERT(sizeof(struct nx_action_mpls_ttl) == 16);
+
#endif /* openflow/nicira-ext.h */
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