DPDK  21.08.0
Data Fields
rte_eth_desc_lim Struct Reference

#include <rte_ethdev.h>

Data Fields

uint16_t nb_max
uint16_t nb_min
uint16_t nb_align
uint16_t nb_seg_max
uint16_t nb_mtu_seg_max

Detailed Description

A structure contains information about HW descriptor ring limitations.

Definition at line 1158 of file rte_ethdev.h.

Field Documentation

◆ nb_max

uint16_t nb_max

Max allowed number of descriptors.

examples/ethtool/ethtool-app/main.c, and examples/ethtool/lib/rte_ethtool.c.

Definition at line 1159 of file rte_ethdev.h.

◆ nb_min

uint16_t nb_min

Min allowed number of descriptors.

Definition at line 1160 of file rte_ethdev.h.

◆ nb_align

uint16_t nb_align

Number of descriptors should be aligned to.

Definition at line 1161 of file rte_ethdev.h.

◆ nb_seg_max

uint16_t nb_seg_max

Max allowed number of segments per whole packet.

  • For TSO packet this is the total number of data descriptors allowed by device.
See also

Definition at line 1171 of file rte_ethdev.h.

◆ nb_mtu_seg_max

uint16_t nb_mtu_seg_max

Max number of segments per one MTU.

  • For non-TSO packet, this is the maximum allowed number of segments in a single transmit packet.
  • For TSO packet each segment within the TSO may span up to this value.
See also

Definition at line 1184 of file rte_ethdev.h.

The documentation for this struct was generated from the following file: