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/* Copyright (c) 2014, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP Classification Datamodel
* Describes the classification internal data model
*/
#ifndef ODP_CLASSIFICATION_DATAMODEL_H_
#define ODP_CLASSIFICATION_DATAMODEL_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <odp/api/spinlock.h>
#include <odp/api/classification.h>
#include <odp_pool_internal.h>
#include <odp_packet_internal.h>
#include <odp_packet_io_internal.h>
#include <odp_queue_if.h>
#include <protocols/ip.h>
/* Maximum Class Of Service Entry */
#define ODP_COS_MAX_ENTRY 64
/* Maximum PMR Entry */
#define ODP_PMR_MAX_ENTRY 256
/* Maximum PMR Terms in a PMR Set */
#define ODP_PMRTERM_MAX 8
/* Maximum PMRs attached in PKTIO Level */
#define ODP_PMR_PER_COS_MAX 8
/* L2 Priority Bits */
#define ODP_COS_L2_QOS_BITS 3
/* Max L2 QoS value */
#define ODP_COS_MAX_L2_QOS (1 << ODP_COS_L2_QOS_BITS)
/* L2 DSCP Bits */
#define ODP_COS_L3_QOS_BITS 6
/* Max L3 QoS Value */
#define ODP_COS_MAX_L3_QOS (1 << ODP_COS_L3_QOS_BITS)
/* Max PMR Term bits */
#define ODP_PMR_TERM_BYTES_MAX 16
/**
Packet Matching Rule Term Value
Stores the Term and Value mapping for a PMR.
The maximum size of value currently supported in 64 bits
**/
typedef struct pmr_term_value {
odp_cls_pmr_term_t term; /* PMR Term */
odp_bool_t range_term; /* True if range, false if match */
union {
struct {
/** Value to be matched */
uint64_t value;
/** Masked set of bits to be matched */
uint64_t mask;
} match;
struct {
/** Start value of the range */
uint64_t val_start;
/** End value of the range */
uint64_t val_end;
} range;
struct {
_odp_ipv6_addr_t addr;
_odp_ipv6_addr_t mask;
} match_ipv6;
struct {
_odp_ipv6_addr_t addr_start;
_odp_ipv6_addr_t addr_end;
} range_ipv6;
};
uint32_t offset; /**< Offset if term == ODP_PMR_CUSTOM_FRAME */
uint32_t val_sz; /**< Size of the value to be matched */
} pmr_term_value_t;
/*
Class Of Service
*/
struct cos_s {
queue_t queue; /* Associated Queue */
odp_pool_t pool; /* Associated Buffer pool */
union pmr_u *pmr[ODP_PMR_PER_COS_MAX]; /* Chained PMR */
union cos_u *linked_cos[ODP_PMR_PER_COS_MAX]; /* Chained CoS with PMR*/
uint32_t valid; /* validity Flag */
odp_cls_drop_t drop_policy; /* Associated Drop Policy */
size_t headroom; /* Headroom for this CoS */
odp_spinlock_t lock; /* cos lock */
odp_atomic_u32_t num_rule; /* num of PMRs attached with this CoS */
char name[ODP_COS_NAME_LEN]; /* name */
};
typedef union cos_u {
struct cos_s s;
uint8_t pad[ROUNDUP_CACHE_LINE(sizeof(struct cos_s))];
} cos_t;
/**
Packet Matching Rule
**/
struct pmr_s {
uint32_t valid; /* Validity Flag */
odp_atomic_u32_t count; /* num of packets matching this rule */
uint32_t num_pmr; /* num of PMR Term Values*/
odp_spinlock_t lock; /* pmr lock*/
cos_t *src_cos; /* source CoS where PMR is attached */
pmr_term_value_t pmr_term_value[ODP_PMRTERM_MAX];
/* List of associated PMR Terms */
};
typedef union pmr_u {
struct pmr_s s;
uint8_t pad[ROUNDUP_CACHE_LINE(sizeof(struct pmr_s))];
} pmr_t;
/**
L2 QoS and CoS Map
This structure holds the mapping between L2 QoS value and
corresponding cos_t object
**/
typedef struct pmr_l2_cos {
odp_spinlock_t lock; /* pmr_l2_cos lock */
cos_t *cos[ODP_COS_MAX_L2_QOS]; /* Array of CoS objects */
} pmr_l2_cos_t;
/**
L3 QoS and CoS Map
This structure holds the mapping between L3 QoS value and
corresponding cos_t object
**/
typedef struct pmr_l3_cos {
odp_spinlock_t lock; /* pmr_l3_cos lock */
cos_t *cos[ODP_COS_MAX_L3_QOS]; /* Array of CoS objects */
} pmr_l3_cos_t;
/**
Linux Generic Classifier
This structure is stored in pktio_entry and holds all
the classifier configuration value.
**/
typedef struct classifier {
cos_t *error_cos; /* Associated Error CoS */
cos_t *default_cos; /* Associated Default CoS */
uint32_t l3_precedence; /* L3 QoS precedence */
pmr_l2_cos_t l2_cos_table; /* L2 QoS-CoS table map */
pmr_l3_cos_t l3_cos_table; /* L3 Qos-CoS table map */
size_t headroom; /* Pktio Headroom */
size_t skip; /* Pktio Skip Offset */
} classifier_t;
/**
Class of Service Table
**/
typedef struct odp_cos_table {
cos_t cos_entry[ODP_COS_MAX_ENTRY];
} cos_tbl_t;
/**
PMR table
**/
typedef struct pmr_tbl {
pmr_t pmr[ODP_PMR_MAX_ENTRY];
} pmr_tbl_t;
#ifdef __cplusplus
}
#endif
#endif
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