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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/spinlock.h>
#include <odp/classification.h>
#include <odp_pool_internal.h>
#include <odp_packet_internal.h>
#include <odp_packet_io_internal.h>
#include <odp_queue_internal.h>
/* Maximum Class Of Service Entry */
#define ODP_COS_MAX_ENTRY 64
/* Maximum PMR Set Entry */
#define ODP_PMRSET_MAX_ENTRY 64
/* Maximum PMR Entry */
#define ODP_PMR_MAX_ENTRY 64
/* Maximum PMR Terms in a PMR Set */
#define ODP_PMRTERM_MAX 8
/* Maximum PMRs attached in PKTIO Level */
#define ODP_PKTIO_MAX_PMR 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 8
/**
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_pmr_term_e term; /* PMR Term */
uint64_t val; /**< Value to be matched */
uint64_t mask; /**< Masked set of bits to be matched */
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_entry_t *queue; /* Associated Queue */
pool_entry_t *pool; /* Associated Buffer pool */
union pmr_u *pmr; /* Chained PMR */
union cos_u *linked_cos; /* CoS linked with the PMR */
uint32_t valid; /* validity Flag */
odp_cls_drop_t drop_policy; /* Associated Drop Policy */
odp_queue_group_t queue_group; /* Associated Queue Group */
odp_cos_flow_set_t flow_set; /* Assigned Flow Set */
char name[ODP_COS_NAME_LEN]; /* name */
size_t headroom; /* Headroom for this CoS */
odp_spinlock_t lock; /* cos lock */
};
typedef union cos_u {
struct cos_s s;
uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(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*/
pmr_term_value_t pmr_term_value[1]; /* Associated PMR Term */
};
typedef union pmr_u {
struct pmr_s s;
uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct pmr_s))];
} pmr_t;
/**
Packet Matching Rule Set
This structure is implemented as a extension over struct pmr_s
In order to use same pointer to access both pmr_s and pmr_set_s
'num_pmr' value is used to differentiate between pmr_s and pmr_set_s struct
**/
struct pmr_set_s {
pmr_t pmr;
pmr_term_value_t pmr_term_value[ODP_PMRTERM_MAX - 1];
/* List of associated PMR Terms */
};
typedef union pmr_set_u {
struct pmr_set_s s;
uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct pmr_set_s))];
} pmr_set_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 {
odp_spinlock_t lock; /*pktio_cos lock */
uint32_t num_pmr; /* num of PMRs linked to given PKTIO*/
pmr_t *pmr[ODP_PKTIO_MAX_PMR]; /* PMRs linked with this PKTIO */
cos_t *cos[ODP_PKTIO_MAX_PMR]; /* CoS linked with this PKTIO */
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 */
odp_cos_flow_set_t flow_set; /* Flow Set to be calculated
for this pktio */
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 set table
**/
typedef struct pmr_set_tbl {
pmr_set_t pmr_set[ODP_PMRSET_MAX_ENTRY];
} pmr_set_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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