DOKK / manpages / debian 13 / dpdk-doc / rte_eth_desc_lim.3.en
rte_eth_desc_lim(3) Library Functions Manual rte_eth_desc_lim(3)

rte_eth_desc_lim

#include <rte_ethdev.h>


uint16_t nb_max
uint16_t nb_min
uint16_t nb_align
uint16_t nb_seg_max
uint16_t nb_mtu_seg_max

A structure contains information about HW descriptor ring limitations.

Definition at line 1333 of file rte_ethdev.h.

Max allowed number of descriptors.

Definition at line 1334 of file rte_ethdev.h.

Min allowed number of descriptors.

Definition at line 1335 of file rte_ethdev.h.

Number of descriptors should be aligned to.

Definition at line 1336 of file rte_ethdev.h.

Max allowed number of segments per whole packet.

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

See also

nb_mtu_seg_max

Definition at line 1346 of file rte_ethdev.h.

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

nb_seg_max

Definition at line 1359 of file rte_ethdev.h.

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