[ovs-dev] [PATCH 1/4] Add/Modify headers for Multipart - Table Features.
Alexander Wu
alexander.wu at huawei.com
Sat Oct 26 10:12:27 UTC 2013
Add headers and function prototype for table features.
And modify the limits of mp-table-features msg
Signed-off-by: Alexander Wu <alexander.wu at huawei.com>
---
lib/ofp-msgs.h | 4 +-
lib/ofp-util.h | 159 ++++++++++++++++++++++++++++++++++++++++++++
ofproto/ofproto-provider.h | 3 +
3 files changed, 164 insertions(+), 2 deletions(-)
diff --git a/lib/ofp-msgs.h b/lib/ofp-msgs.h
index aa19fe3..9a679f4 100644
--- a/lib/ofp-msgs.h
+++ b/lib/ofp-msgs.h
@@ -336,10 +336,10 @@ enum ofpraw {
/* OFPST 1.3+ (11): struct ofp13_meter_features. */
OFPRAW_OFPST13_METER_FEATURES_REPLY,
- /* OFPST 1.3+ (12): struct ofp13_table_features[]. */
+ /* OFPST 1.3+ (12): void. */
OFPRAW_OFPST13_TABLE_FEATURES_REQUEST,
- /* OFPST 1.3+ (12): struct ofp13_table_features[]. */
+ /* OFPST 1.3+ (12): struct ofp13_table_features, uint8_t[8][]. */
OFPRAW_OFPST13_TABLE_FEATURES_REPLY,
/* OFPST 1.0+ (13): void. */
diff --git a/lib/ofp-util.h b/lib/ofp-util.h
index 1f77808..a33ddec 100644
--- a/lib/ofp-util.h
+++ b/lib/ofp-util.h
@@ -598,6 +598,165 @@ enum ofperr ofputil_decode_table_mod(const struct ofp_header *,
struct ofpbuf *ofputil_encode_table_mod(const struct ofputil_table_mod *,
enum ofputil_protocol);
+struct ofputil_table_feature_prop_header {
+ uint16_t type; /* One of OFPTFPT_*. */
+ uint16_t length; /* Length in bytes of this property. */
+ uint8_t *data;
+};
+
+#define OTF_GET (1 << 0)
+#define OTF_SET (1 << 1)
+#define OFTABLE_NUM 0xff
+
+/* Abstract ofp13_table_features */
+struct ofputil_table_features {
+ uint16_t length; /* Length is padded to 64 bits. */
+ uint8_t table_id; /* Identifier of table. Lower numbered tables
+ are consulted first. */
+ char name[OFP_MAX_TABLE_NAME_LEN];
+ uint64_t metadata_match; /* Bits of metadata table can match. */
+ uint64_t metadata_write; /* Bits of metadata table can write. */
+ uint32_t config; /* Bitmap of OFPTC_* values */
+ uint32_t max_entries; /* Max number of entries supported. */
+
+ struct ofputil_table_feature_prop_header props[0xff];
+ uint16_t n_property;
+};
+
+
+struct oxm_variable {
+ uint32_t data;
+ char *name;
+};
+
+extern struct oxm_variable oxm_variables[];
+int get_oxm_num(void);
+char *get_oxm_name(uint32_t type);
+
+/* Table Feature property types.
+ * Low order bit cleared indicates a property for a regular Flow Entry.
+ * Low order bit set indicates a property for the Table-Miss Flow Entry. */
+enum ofputil_table_feature_prop_type {
+ OFPUTIL_INSTRUCTIONS = 0, /* Instructions property. */
+ OFPUTIL_INSTRUCTIONS_MISS = 1, /* Instructions for table-miss. */
+ OFPUTIL_NEXT_TABLES = 2, /* Next Table property. */
+ OFPUTIL_NEXT_TABLES_MISS = 3, /* Next Table for table-miss. */
+ OFPUTIL_WRITE_ACTIONS = 4, /* Write Actions property. */
+ OFPUTIL_WRITE_ACTIONS_MISS = 5, /* Write Actions for table-miss. */
+ OFPUTIL_APPLY_ACTIONS = 6, /* Apply Actions property. */
+ OFPUTIL_APPLY_ACTIONS_MISS = 7, /* Apply Actions for table-miss. */
+ OFPUTIL_MATCH = 8, /* Match property. */
+ OFPUTIL_WILDCARDS = 10, /* Wildcards property. */
+ OFPUTIL_WRITE_SETFIELD = 12, /* Write Set-Field property. */
+ OFPUTIL_WRITE_SETFIELD_MISS = 13, /* Write Set-Field for table-miss. */
+ OFPUTIL_APPLY_SETFIELD = 14, /* Apply Set-Field property. */
+ OFPUTIL_APPLY_SETFIELD_MISS = 15, /* Apply Set-Field for table-miss. */
+ OFPUTIL_EXPERIMENTER = 0xFFFE, /* Experimenter property. */
+ OFPUTIL_EXPERIMENTER_MISS = 0xFFFF, /* Experimenter for table-miss. */
+};
+
+struct ofputil_instruction {
+ uint16_t type; /* Instruction type */
+ uint16_t len; /* Length of this struct in bytes. */
+ uint8_t pad[4];
+};
+
+/* Instructions property */
+struct ofputil_table_feature_prop_instructions {
+ uint16_t type; /* One of OFPUTIL_INSTRUCTIONS,
+ OFPUTIL_INSTRUCTIONS_MISS. */
+ uint16_t length; /* Length in bytes of this property. */
+ uint8_t table_id;
+ uint8_t n_instructions;
+ /* Followed by:
+ * - Exactly (length - 4) bytes containing the instruction ids, then
+ * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
+ * bytes of all-zero bytes */
+ struct ofputil_instruction *instruction_ids;
+};
+
+#define NEXT_TABLE_NUM 0xff
+
+struct ofputil_table_feature_prop_next_tables {
+ uint16_t type; /* One of OFPUTIL_NEXT_TABLES,
+ OFPUTIL_NEXT_TABLES_MISS. */
+ uint16_t length; /* Length in bytes of this property. */
+ uint8_t n_next_table;
+ /* Followed by:
+ * - Exactly (length - 4) bytes containing the table_ids, then
+ * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
+ * bytes of all-zero bytes */
+ uint8_t next_table_ids[NEXT_TABLE_NUM]; /* List of table ids. */
+};
+
+struct ofputil_table_feature_prop_actions {
+ uint16_t type; /* One of OFPUTIL_WRITE_ACTIONS,
+ OFPUTIL_WRITE_ACTIONS_MISS,
+ OFPUTIL_APPLY_ACTIONS,
+ OFPUTIL_APPLY_ACTIONS_MISS. */
+ uint16_t length; /* Length in bytes of this property. */
+ uint8_t n_actions;
+ /* Followed by:
+ * - Exactly (length - 4) bytes containing the action_ids, then
+ * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
+ * bytes of all-zero bytes */
+ struct ofp_action_header *action_ids; /* List of actions
+ without any data */
+};
+
+/* Match, Wildcard or Set-Field property */
+struct ofputil_table_feature_prop_oxm {
+ uint16_t type; /* One of OFPTFPT13_MATCH, OFPTFPT13_WILDCARDS,
+ OFPTFPT13_WRITE_SETFIELD,
+ OFPTFPT13_WRITE_SETFIELD_MISS,
+ OFPTFPT13_APPLY_SETFIELD,
+ OFPTFPT13_APPLY_SETFIELD_MISS. */
+ uint16_t length; /* Length in bytes of this property. */
+ uint8_t n_oxm;
+ /* Followed by:
+ * - Exactly (length - 4) bytes containing the oxm_ids, then
+ * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
+ * bytes of all-zero bytes */
+ /* enum ofputil_match_bitmap oxm_bits; */ /* Array of OXM headers */
+};
+
+/* Experimenter table feature property */
+struct ofputil_table_feature_prop_experimenter {
+ uint16_t type; /* One of OFPTFPT13_EXPERIMENTER,
+ OFPTFPT13_EXPERIMENTER_MISS. */
+ uint16_t length; /* Length in bytes of this property. */
+ uint32_t experimenter; /* Experimenter ID which takes the same form
+ as in struct ofp_experimenter_header. */
+ uint32_t exp_type; /* Experimenter defined. */
+ /* Followed by:
+ * - Exactly (length - 12) bytes containing the experimenter data, then
+ * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
+ * bytes of all-zero bytes */
+ /*uint32_t experimenter_data[10]; */
+};
+
+enum ofperr
+ofputil_decode_table_features_request(const struct ofp_header *oh, int *n,
+ struct ofputil_table_features tfs[], uint32_t *flag);
+
+enum ofperr
+ofputil_decode_table_features_reply(const struct ofp_header *oh, int *tfs_num,
+ struct ofputil_table_features tfs[]);
+
+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 get_prop_length(uint16_t type);
+
+char *get_prop_name(uint16_t type);
+
+struct ofpbuf *
+ofputil_encode_table_features(const struct ofputil_table_features tfs[], int n,
+ const struct ofp_header *oh);
+
/* Meter band configuration for all supported band types. */
struct ofputil_meter_band {
uint16_t type;
diff --git a/ofproto/ofproto-provider.h b/ofproto/ofproto-provider.h
index 07bb266..5886dec 100644
--- a/ofproto/ofproto-provider.h
+++ b/ofproto/ofproto-provider.h
@@ -152,6 +152,8 @@ struct ofproto {
struct hmap groups OVS_GUARDED; /* Contains "struct ofgroup"s. */
uint32_t n_groups[4] OVS_GUARDED; /* # of existing groups of each type. */
struct ofputil_group_features ogf;
+ /* ANOTHER solution. it doesn't need to copy */
+ struct ofputil_table_features otf[OFTABLE_NUM]; /* seems like to be "tf", not "otf" */
};
void ofproto_init_tables(struct ofproto *, int n_tables);
@@ -258,6 +260,7 @@ struct oftable {
uint32_t eviction_group_id_basis;
struct hmap eviction_groups_by_id;
struct heap eviction_groups_by_size;
+ struct ofputil_table_features tf;
};
/* Assigns TABLE to each oftable, in turn, in OFPROTO.
--
1.7.3.1.msysgit.0
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