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ofp-util: Implement OFPMP_TABLE_FEATURES decoding and printing.

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Signed-off-by: Alexander Wu <alexander.wu@huawei.com>
Co-authored-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Alexander Wu
2014-03-23 23:20:04 -07:00
committed by Ben Pfaff
parent b71273f60d
commit 5deff5aa26
6 changed files with 837 additions and 9 deletions
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75
lib/ofp-util.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "bitmap.h"
#include "compiler.h"
#include "flow.h"
#include "list.h"
@@ -602,6 +603,76 @@ enum ofperr ofputil_decode_table_mod(const struct ofp_header *,
struct ofpbuf *ofputil_encode_table_mod(const struct ofputil_table_mod *,
enum ofputil_protocol);
/* Abstract ofp_table_features. */
struct ofputil_table_features {
uint8_t table_id; /* Identifier of table. Lower numbered tables
are consulted first. */
char name[OFP_MAX_TABLE_NAME_LEN];
ovs_be64 metadata_match; /* Bits of metadata table can match. */
ovs_be64 metadata_write; /* Bits of metadata table can write. */
uint32_t config; /* Bitmap of OFPTC_* values */
uint32_t max_entries; /* Max number of entries supported. */
/* Table features related to instructions. There are two instances:
*
* - 'miss' reports features available in the table miss flow.
*
* - 'nonmiss' reports features available in other flows. */
struct ofputil_table_instruction_features {
/* Tables that "goto-table" may jump to. */
unsigned long int next[BITMAP_N_LONGS(255)];
/* Bitmap of OVSINST_* for supported instructions. */
uint32_t instructions;
/* Table features related to actions. There are two instances:
*
* - 'write' reports features available in a "write_actions"
* instruction.
*
* - 'apply' reports features available in an "apply_actions"
* instruction. */
struct ofputil_table_action_features {
uint32_t actions; /* Bitmap of supported OFPAT*. */
uint64_t set_fields; /* Bitmap of MFF_* "set-field" supports. */
} write, apply;
} nonmiss, miss;
/* MFF_* bitmaps.
*
* For any given field the following combinations are valid:
*
* - match=0, wildcard=0, mask=0: Flows in this table cannot match on
* this field.
*
* - match=1, wildcard=0, mask=0: Flows in this table must match on all
* the bits in this field.
*
* - match=1, wildcard=1, mask=0: Flows in this table must either match
* on all the bits in the field or wildcard the field entirely.
*
* - match=1, wildcard=1, mask=1: Flows in this table may arbitrarily
* mask this field (as special cases, they may match on all the bits
* or wildcard it entirely).
*
* Other combinations do not make sense.
*/
uint64_t match; /* Fields that may be matched. */
uint64_t mask; /* Subset of 'match' that may have masks. */
uint64_t wildcard; /* Subset of 'match' that may be wildcarded. */
};
int ofputil_decode_table_features(struct ofpbuf *,
struct ofputil_table_features *, bool loose);
struct ofpbuf *ofputil_encode_table_features_request(
enum ofp_version ofp_version);
void ofputil_append_table_features_reply(
const struct ofputil_table_features *tf,
struct list *replies);
uint16_t table_feature_prop_get_size(enum ofp13_table_feature_prop_type type);
char *table_feature_prop_get_name(enum ofp13_table_feature_prop_type type);
/* Meter band configuration for all supported band types. */
struct ofputil_meter_band {
uint16_t type;
@@ -868,6 +939,8 @@ enum {
int ofputil_action_code_from_name(const char *);
const char * ofputil_action_name_from_code(enum ofputil_action_code code);
enum ofputil_action_code ofputil_action_code_from_ofp13_action(
enum ofp13_action_type type);
void *ofputil_put_action(enum ofputil_action_code, struct ofpbuf *buf);