rte_eth_hairpin_conf - Man Page

uint32_t peer_count:16
uint32_t tx_explicit:1
uint32_t manual_bind:1
uint32_t use_locked_device_memory:1
uint32_t use_rte_memory:1
uint32_t force_memory:1
uint32_t reserved:11

The number of peers​.

Definition at line 1292 of file rte_ethdev​.h​.

Explicit Tx flow rule mode​. One hairpin pair of queues should have the same attribute​.

• When set, the user should be responsible for inserting the hairpin Tx part flows and removing them​.
• When clear, the PMD will try to handle the Tx part of the flows, e​.g​., by splitting one flow into two parts​.

Definition at line 1303 of file rte_ethdev​.h​.

Manually bind hairpin queues​. One hairpin pair of queues should have the same attribute​.

• When set, to enable hairpin, the user should call the hairpin bind function after all the queues are set up properly and the ports are started​. Also, the hairpin unbind function should be called accordingly before stopping a port that with hairpin configured​.
• When cleared, the PMD will try to enable the hairpin with the queues configured automatically during port start​.

Definition at line 1316 of file rte_ethdev​.h​.

Use locked device memory as a backing storage​.

• When set, PMD will attempt place descriptors and/or data buffers in dedicated device memory​.
• When cleared, PMD will use default memory type as a backing storage​. Please refer to PMD documentation for details​.

API user should check if PMD supports this configuration flag using

See also

rte_eth_dev_hairpin_capability_get​.

Definition at line 1329 of file rte_ethdev​.h​.

Use DPDK memory as backing storage​.

• When set, PMD will attempt place descriptors and/or data buffers in host memory managed by DPDK​.
• When cleared, PMD will use default memory type as a backing storage​. Please refer to PMD documentation for details​.

API user should check if PMD supports this configuration flag using

See also

rte_eth_dev_hairpin_capability_get​.

Definition at line 1342 of file rte_ethdev​.h​.

Force usage of hairpin memory configuration​.

• When set, PMD will attempt to use specified memory settings​. If resource allocation fails, then hairpin queue allocation will result in an error​.
• When clear, PMD will attempt to use specified memory settings​. If resource allocation fails, then PMD will retry allocation with default configuration​.

Definition at line 1354 of file rte_ethdev​.h​.

Reserved bits​.

Definition at line 1356 of file rte_ethdev​.h​.