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rte_ring(3) DPDK rte_ring(3) NAME rte_ring SYNOPSIS #include <rte_ring_core.h> 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. Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Jun 11 2026 rte_ring(3)
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