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/* Copyright (c) 2014-2018, 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/api/debug.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 CLS_COS_MAX_ENTRY 64
/* Invalid CoS index */
#define CLS_COS_IDX_NONE CLS_COS_MAX_ENTRY
/* Maximum PMR Entry */
#define CLS_PMR_MAX_ENTRY 256
/* Maximum PMR Terms in a PMR Set */
#define CLS_PMRTERM_MAX 8
/* Maximum PMRs attached in PKTIO Level */
#define CLS_PMR_PER_COS_MAX 8
/* L2 Priority Bits */
#define CLS_COS_L2_QOS_BITS 3
/* Max L2 QoS value */
#define CLS_COS_MAX_L2_QOS (1 << CLS_COS_L2_QOS_BITS)
/* L2 DSCP Bits */
#define CLS_COS_L3_QOS_BITS 6
/* Max L3 QoS Value */
#define CLS_COS_MAX_L3_QOS (1 << CLS_COS_L3_QOS_BITS)
/* Max PMR Term size */
#define MAX_PMR_TERM_SIZE 16
/* Max queue per Class of service */
#define CLS_COS_QUEUE_MAX 32
/* Max number of implementation created queues */
#define CLS_QUEUE_GROUP_MAX (CLS_COS_MAX_ENTRY * CLS_COS_QUEUE_MAX)
/* CoS index is stored in odp_packet_hdr_t */
ODP_STATIC_ASSERT(CLS_COS_MAX_ENTRY <= UINT16_MAX, "CoS_does_not_fit_16_bits");
typedef union {
/* All proto fileds */
uint32_t all;
struct {
uint32_t ipv4:1;
uint32_t ipv6:1;
uint32_t udp:1;
uint32_t tcp:1;
};
} odp_cls_hash_proto_t;
/*
* Term and value mapping for a PMR
*/
typedef struct pmr_term_value {
/* PMR Term */
odp_cls_pmr_term_t term;
/* True if range, false if match */
odp_bool_t range_term;
union {
/* Match value and mask */
struct {
/* Value to be matched. Arrays are used with custom and
* IPv6 address terms. */
union {
uint64_t value;
uint8_t value_u8[MAX_PMR_TERM_SIZE];
uint64_t value_u64[2];
};
/* Mask for the data to be matched */
union {
uint64_t mask;
uint8_t mask_u8[MAX_PMR_TERM_SIZE];
uint64_t mask_u64[2];
};
} match;
/* Range values */
struct {
/* Start value of the range */
union {
uint64_t start;
uint8_t start_u8[MAX_PMR_TERM_SIZE];
uint64_t start_u64[2];
};
/* End value of the range */
union {
uint64_t end;
uint8_t end_u8[MAX_PMR_TERM_SIZE];
uint64_t end_u64[2];
};
} range;
};
/* Offset used with custom PMR */
uint32_t offset;
/* Size of the value to be matched */
uint32_t val_sz;
} pmr_term_value_t;
/*
Class Of Service
*/
struct cos_s {
odp_queue_t queue; /* Associated Queue */
odp_pool_t pool; /* Associated Buffer pool */
odp_pktin_vector_config_t vector; /* Packet vector config */
union pmr_u *pmr[CLS_PMR_PER_COS_MAX]; /* Chained PMR */
union cos_u *linked_cos[CLS_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 */
bool queue_group;
odp_cls_hash_proto_t hash_proto;
uint32_t num_queue;
odp_queue_param_t queue_param;
char name[ODP_COS_NAME_LEN]; /* name */
uint8_t index;
};
typedef union cos_u {
struct cos_s s;
uint8_t pad[ROUNDUP_CACHE_LINE(sizeof(struct cos_s))];
} cos_t;
/* Pattern 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*/
uint16_t mark;
odp_spinlock_t lock; /* pmr lock*/
cos_t *src_cos; /* source CoS where PMR is attached */
pmr_term_value_t pmr_term_value[CLS_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;
typedef struct _cls_queue_grp_tbl_s {
odp_queue_t queue[CLS_QUEUE_GROUP_MAX];
} _cls_queue_grp_tbl_s;
typedef union _cls_queue_grp_tbl_t {
_cls_queue_grp_tbl_s s;
uint8_t pad[ROUNDUP_CACHE_LINE(sizeof(_cls_queue_grp_tbl_s))];
} _cls_queue_grp_tbl_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[CLS_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[CLS_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[CLS_COS_MAX_ENTRY];
} cos_tbl_t;
/**
PMR table
**/
typedef struct pmr_tbl {
pmr_t pmr[CLS_PMR_MAX_ENTRY];
} pmr_tbl_t;
#ifdef __cplusplus
}
#endif
#endif
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