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#pragma once
#include <vnode.h>
#include <common.h>
#include <sys/queue.h>
#ifndef VNODE_CHECK_THREAD_SAFE
#define VNODE_CHECK_THREAD_SAFE 0
#endif
#ifndef VNODE_STAT_ENABLE
#define VNODE_STAT_ENABLE 1
#endif
struct shared_credict_counter
{
rte_spinlock_t lock;
unsigned int counter;
};
/* Tunnel Description Structure */
struct tunnel_desc
{
/* first cacheline, read only */
RTE_MARKER cacheline0;
/* Tunnel Name */
char symbol[MR_SYMBOL_MAX];
/* Tunel Object, real object to hold pointers */
struct rte_ring * tunnel_object;
/* Tunnel Size */
unsigned int tunnel_size;
/* tunnel exclusive size */
unsigned int tunnel_exclusive_size;
/* Tunnel Enqueue Buffer */
struct rte_mbuf ** en_buffer;
#if 0
/* Tunnel Enqueue Buffer Size */
struct rte_mbuf ** en_returned_buffer;
#endif
/* second cacheline, read/write */
RTE_MARKER cacheline1 __rte_cache_min_aligned;
unsigned int sz_en_buffer;
/* Tunnel Enqueue Buffer Used */
unsigned int sz_en_buffer_used;
/* shared tunnel use */
unsigned int shared_credict_used;
/* counter */
rte_atomic32_t * shared_credict_counter;
#if 0
/* Tunnel Enqueue Buffer Returned */
unsigned int sz_en_buffer_returned;
/* Tunnel Enqueue Buffer Returned */
unsigned int sz_en_buffer_returned_used;
/* Last TSC of flush */
uint64_t tsc_prev;
#endif
#if VNODE_CHECK_THREAD_SAFE
/* For debug, to check concurrent access of en_buffer */
rte_spinlock_t lock_thread_safe_check;
#endif
};
struct tunnel_block
{
/* Prod Queue Count */
unsigned int nr_prodq;
/* Cons Queue Count */
unsigned int nr_consq;
/* Tunnel's Producer */
struct vnode_prod * prod;
/* Tunnel's Consumer */
struct vnode_cons * cons;
/* Tunnel Descs */
struct tunnel_desc * descs[0];
};
/* Virtual Data-Node Consumer Structure */
struct vnode_cons
{
TAILQ_ENTRY(vnode_cons) next;
char symbol[MR_SYMBOL_MAX];
struct vnode * vnode;
unsigned int nr_consq;
struct tunnel_block * block;
unsigned int cur_attach;
struct vnode_cons_stat stat[MR_SID_MAX];
struct vnode_cons_notify notify[MR_SID_MAX];
};
/* Virtual Data-Node Producer Structure */
struct vnode_prod
{
TAILQ_ENTRY(vnode_prod) next;
char symbol[MR_SYMBOL_MAX];
struct vnode * vnode;
unsigned int nr_prodq;
unsigned int cur_attach;
struct tunnel_block * block;
struct vnode_prod_stat stat[MR_SID_MAX];
};
TAILQ_HEAD(vnode_cons_list, vnode_cons);
TAILQ_HEAD(vnode_prod_list, vnode_prod);
/* Vitrual Data-Node Structure */
struct vnode
{
/* VNode Symbol */
char symbol[MR_SYMBOL_MAX];
/* Consumer */
struct vnode_cons * cons;
/* Producer */
struct vnode_prod * prod;
/* Tunnel Size */
unsigned int sz_tunnel;
/* Tunnel Enqueue Buffer Size */
unsigned int sz_tunnel_buffer;
/* shared credict */
unsigned int sz_shared;
/* allow to notify cons when packet arrived. */
unsigned int notify_cons_when_rx;
/* batch interval */
unsigned int batch_interval_tsc;
/* Guarantees one operator(consumer or producer, create or destroy) a time */
rte_spinlock_t lock __rte_cache_aligned;
rte_atomic32_t shared_credict_counter __rte_cache_aligned;
};
#ifndef MR_LIBVNODE_MAX_SZ_BURST
#define MR_LIBVNODE_MAX_SZ_BURST MR_BURST_MAX
#endif
#if VNODE_STAT_ENABLE
#if VNODE_STAT_BY_ATOMIC
#define VNODE_STAT_UPDATE(desc, queue, item, value) \
do { \
rte_atomic64_add(&desc->stat[queue].item,value); \
} while(0)
#else
#define VNODE_STAT_UPDATE(desc, queue, item, value) \
do { \
desc->stat[queue].item += value; \
} while(0)
#endif
#else
#define VNODE_STAT_UPDATE(desc, queue, item, value) \
do {} while(0)
#endif
#define VNODE_STAT_UPDATE_AVG(desc, queue, item, value) \
do { \
desc->stat[queue].item += (typeof(desc->stat[queue].item))(0.2 * (value - desc->stat[queue].item)); \
} while(0)
static inline struct tunnel_desc ** tunnel_block_locate(struct tunnel_block * block,
unsigned int prodq_id, unsigned int consq_id)
{
assert(prodq_id < block->nr_prodq && consq_id < block->nr_consq);
return &(block->descs[prodq_id * block->nr_consq + consq_id]);
}
/* VNode Structure Operation Functions */
struct vnode * __vnode_common_create(const char * sym, unsigned int sz_tunnel, unsigned int sz_tunnel_buffer,
unsigned int notify_cons_when_rx);
struct vnode_prod * __vnode_common_create_prod(struct vnode * vnode, const char * symbol, int nr_prodq);
struct vnode_cons * __vnode_common_create_cons(struct vnode * vnode, const char * symbol, int nr_consq);
struct vnode_prod * __vnode_common_prod_lookup(struct vnode * vnode, const char * sym);
struct vnode_cons * __vnode_common_cons_lookup(struct vnode * vnode, const char * sym);
int __vnode_common_cons_attach(struct vnode * node, struct vnode_cons * cons);
int __vnode_common_prod_attach(struct vnode * node, struct vnode_prod* prod);
struct vnode_prod_stat * __vnode_common_prod_stat_get(struct vnode_prod * prod);
struct vnode_cons_stat * __vnode_common_cons_stat_get(struct vnode_cons * cons);
int __vnode_common_delete_prod(struct vnode_prod * prod);
int __vnode_common_delete_cons(struct vnode_cons * cons);
int __vnode_common_delete(struct vnode * vnode);
void __vnode_common_unpoison(struct vnode * vnode);
void __vnode_common_unpoison_prod(struct vnode_prod * prod);
void __vnode_common_unpoison_cons(struct vnode_cons * cons);
struct vnode_cons_notify * __vnode_common_cons_notify_ctx(struct vnode_cons * cons);
#define __USE_COMMON_VNODE_CREATE_PROD(_type) \
struct vnode_prod * vnode_##_type##_create_prod(struct vnode * vnode, const char * symbol, int nr_prodq) \
{ return __vnode_common_create_prod(vnode,symbol,nr_prodq); }
#define __USE_COMMON_VNODE_CREATE_CONS(_type) \
struct vnode_cons * vnode_##_type##_create_cons(struct vnode * vnode, const char * symbol, int nr_prodq) \
{ return __vnode_common_create_cons(vnode,symbol,nr_prodq); }
#define __USE_COMMON_VNODE_PROD_LOOKUP(_type) \
struct vnode_prod * vnode_##_type##_prod_lookup(struct vnode * vnode, const char * sym) \
{ return __vnode_common_prod_lookup(vnode,sym); }
#define __USE_COMMON_VNODE_CONS_LOOKUP(_type) \
struct vnode_cons * vnode_##_type##_cons_lookup(struct vnode * vnode, const char * sym) \
{ return __vnode_common_cons_lookup(vnode,sym); }
#define __USE_COMMON_VNODE_PROD_ATTACH(_type) \
int vnode_##_type##_prod_attach(struct vnode * node, struct vnode_prod* prod) \
{ return __vnode_common_prod_attach(node, prod); }
#define __USE_COMMON_VNODE_CONS_ATTACH(_type) \
int vnode_##_type##_cons_attach(struct vnode * node, struct vnode_cons * cons) \
{ return __vnode_common_cons_attach(node, cons); }
#define __USE_COMMON_VNODE_PROD_STAT_GET(_type) \
struct vnode_prod_stat * vnode_##_type##_prod_stat_get(struct vnode_prod * prod) \
{ return __vnode_common_prod_stat_get(prod); }
#define __USE_COMMON_VNODE_CONS_STAT_GET(_type) \
struct vnode_cons_stat * vnode_##_type##_cons_stat_get(struct vnode_cons * cons) \
{ return __vnode_common_cons_stat_get(cons); }
#define __USE_COMMON_VNODE_DELETE_PROD(_type) \
int vnode_##_type##_delete_prod(struct vnode_prod * prod) \
{ return __vnode_common_delete_prod(prod); }
#define __USE_COMMON_VNODE_DELETE_CONS(_type) \
int vnode_##_type##_delete_cons(struct vnode_cons * cons) \
{ return __vnode_common_delete_cons(cons); }
#define __USE_COMMON_VNODE_UNPOISON_PROD(_type) \
void vnode_##_type##_unpoison_prod(struct vnode_prod * prod) \
{ return __vnode_common_unpoison_prod(prod); }
#define __USE_COMMON_VNODE_UNPOISON_CONS(_type) \
void vnode_##_type##_unpoison_cons(struct vnode_cons * cons) \
{ return __vnode_common_unpoison_cons(cons); }
#define __USE_COMMON_VNODE_NOTIFY_CTX_CONS(_type) \
struct vnode_cons_notify * vnode_##_type##_notify_ctx_cons(struct vnode_cons * cons) \
{ return __vnode_common_cons_notify_ctx(cons); } \
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