rte_ring3
Usage
Data Structures
union __rte_cache_aligned
Data Fields
char name
[RTE_RING_NAMESIZE]
int flags
const struct
rte_memzone
*
memzone
uint32_t size
uint32_t mask
uint32_t capacity
Detailed Description
An RTE ring structure.
The producer and the consumer have a head and a tail index. The particularity of these index is that they are not between 0 and size(ring)-1. These indexes are between 0 and 2^32 -1, and we mask their value when we access the ring[] field. Thanks to this assumption, we can do subtractions between 2 index values in a modulo-32bit base: that's why the overflow of the indexes is not a problem.
Definition at line 116 of file rte_ring_core.h.
Field Documentation
char name[RTE_RING_NAMESIZE]
Name of the ring.
Definition at line 117 of file rte_ring_core.h.
int flags
Flags supplied at creation.
Definition at line 119 of file rte_ring_core.h.
const struct rte_memzone* memzone
Memzone, if any, containing the rte_ring
Definition at line 120 of file rte_ring_core.h.
uint32_t size
Size of ring.
Definition at line 122 of file rte_ring_core.h.
uint32_t mask
Mask (size-1) of ring.
Definition at line 123 of file rte_ring_core.h.
uint32_t capacity
Usable size of ring
Definition at line 124 of file rte_ring_core.h.