ceph/src/spdk/dpdk/lib/librte_port/rte_port_ring.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #ifndef __INCLUDE_RTE_PORT_RING_H__
   6 #define __INCLUDE_RTE_PORT_RING_H__
   7
   8 #ifdef __cplusplus
   9 extern "C" {
  10 #endif
  11
  12 /**
  13  * @file
  14  * RTE Port Ring
  15  *
  16  * ring_reader:
  17  *      input port built on top of pre-initialized single consumer ring
  18  * ring_writer:
  19  *      output port built on top of pre-initialized single producer ring
  20  * ring_multi_reader:
  21  *      input port built on top of pre-initialized multi consumers ring
  22  * ring_multi_writer:
  23  *      output port built on top of pre-initialized multi producers ring
  24  *
  25  ***/
  26
  27 #include <stdint.h>
  28
  29 #include <rte_ring.h>
  30
  31 #include "rte_port.h"
  32
  33 /** ring_reader port parameters */
  34 struct rte_port_ring_reader_params {
  35         /** Underlying consumer ring that has to be pre-initialized */
  36         struct rte_ring *ring;
  37 };
  38
  39 /** ring_reader port operations */
  40 extern struct rte_port_in_ops rte_port_ring_reader_ops;
  41
  42 /** ring_writer port parameters */
  43 struct rte_port_ring_writer_params {
  44         /** Underlying producer ring that has to be pre-initialized */
  45         struct rte_ring *ring;
  46
  47         /** Recommended burst size to ring. The actual burst size can be
  48                 bigger or smaller than this value. */
  49         uint32_t tx_burst_sz;
  50 };
  51
  52 /** ring_writer port operations */
  53 extern struct rte_port_out_ops rte_port_ring_writer_ops;
  54
  55 /** ring_writer_nodrop port parameters */
  56 struct rte_port_ring_writer_nodrop_params {
  57         /** Underlying producer ring that has to be pre-initialized */
  58         struct rte_ring *ring;
  59
  60         /** Recommended burst size to ring. The actual burst size can be
  61                 bigger or smaller than this value. */
  62         uint32_t tx_burst_sz;
  63
  64         /** Maximum number of retries, 0 for no limit */
  65         uint32_t n_retries;
  66 };
  67
  68 /** ring_writer_nodrop port operations */
  69 extern struct rte_port_out_ops rte_port_ring_writer_nodrop_ops;
  70
  71 /** ring_multi_reader port parameters */
  72 #define rte_port_ring_multi_reader_params rte_port_ring_reader_params
  73
  74 /** ring_multi_reader port operations */
  75 extern struct rte_port_in_ops rte_port_ring_multi_reader_ops;
  76
  77 /** ring_multi_writer port parameters */
  78 #define rte_port_ring_multi_writer_params rte_port_ring_writer_params
  79
  80 /** ring_multi_writer port operations */
  81 extern struct rte_port_out_ops rte_port_ring_multi_writer_ops;
  82
  83 /** ring_multi_writer_nodrop port parameters */
  84 #define rte_port_ring_multi_writer_nodrop_params \
  85         rte_port_ring_writer_nodrop_params
  86
  87 /** ring_multi_writer_nodrop port operations */
  88 extern struct rte_port_out_ops rte_port_ring_multi_writer_nodrop_ops;
  89
  90 #ifdef __cplusplus
  91 }
  92 #endif
  93
  94 #endif