--- name: "rte_eth_dev_info" section: "3" platform: "linux" package: "dpdk-doc" version: "24.11.4-0+deb13u1" release: "Debian 13 (Trixie)" platforms: ["linux"] url: "https://new.carta.tech/rte_eth_dev_info" --- # rte\_eth\_dev\_info(3) ## NAME rte\_eth\_dev\_info ## SYNOPSIS `#include ` ### Data Fields struct rte\_device \* **device**\ const char \* **driver\_name**\ unsigned int **if\_index**\ uint16\_t **min\_mtu**\ uint16\_t **max\_mtu**\ const uint32\_t \* **dev\_flags**\ uint32\_t **min\_rx\_bufsize**\ uint32\_t **max\_rx\_bufsize**\ uint32\_t **max\_rx\_pktlen**\ uint32\_t **max\_lro\_pkt\_size**\ uint16\_t **max\_rx\_queues**\ uint16\_t **max\_tx\_queues**\ uint32\_t **max\_mac\_addrs**\ uint32\_t **max\_hash\_mac\_addrs**\ uint16\_t **max\_vfs**\ uint16\_t **max\_vmdq\_pools**\ struct **rte\_eth\_rxseg\_capa** **rx\_seg\_capa**\ uint64\_t **rx\_offload\_capa**\ uint64\_t **tx\_offload\_capa**\ uint64\_t **rx\_queue\_offload\_capa**\ uint64\_t **tx\_queue\_offload\_capa**\ uint16\_t **reta\_size**\ uint8\_t **hash\_key\_size**\ uint64\_t **flow\_type\_rss\_offloads**\ struct **rte\_eth\_rxconf** **default\_rxconf**\ struct **rte\_eth\_txconf** **default\_txconf**\ uint16\_t **vmdq\_queue\_base**\ uint16\_t **vmdq\_queue\_num**\ uint16\_t **vmdq\_pool\_base**\ struct **rte\_eth\_desc\_lim** **rx\_desc\_lim**\ struct **rte\_eth\_desc\_lim** **tx\_desc\_lim**\ uint32\_t **speed\_capa**\ uint16\_t **nb\_rx\_queues**\ uint16\_t **nb\_tx\_queues**\ uint16\_t **max\_rx\_mempools**\ struct **rte\_eth\_dev\_portconf** **default\_rxportconf**\ struct **rte\_eth\_dev\_portconf** **default\_txportconf**\ uint64\_t **dev\_capa**\ struct **rte\_eth\_switch\_info** **switch\_info**\ enum **rte\_eth\_err\_handle\_mode** **err\_handle\_mode**\ uint64\_t **reserved\_64s** \[2\]\ void \* **reserved\_ptrs** \[2\]\ ## Detailed Description A structure used to retrieve the contextual information of an Ethernet device, such as the controlling driver of the device, etc... Definition at line **1773** of file **rte\_ethdev.h**. ## Field Documentation ### struct rte\_device\* device Generic device information Definition at line **1774** of file **rte\_ethdev.h**. ### const char\* driver\_name Device Driver name. Definition at line **1775** of file **rte\_ethdev.h**. ### unsigned int if\_index Index to bound host interface, or 0 if none. Use if\_indextoname() to translate into an interface name. Definition at line **1776** of file **rte\_ethdev.h**. ### uint16\_t min\_mtu Minimum MTU allowed Definition at line **1778** of file **rte\_ethdev.h**. ### uint16\_t max\_mtu Maximum MTU allowed Definition at line **1779** of file **rte\_ethdev.h**. ### const uint32\_t\* dev\_flags Device flags Definition at line **1780** of file **rte\_ethdev.h**. ### uint32\_t min\_rx\_bufsize Minimum Rx buffer size per descriptor supported by HW. Definition at line **1782** of file **rte\_ethdev.h**. ### uint32\_t max\_rx\_bufsize Maximum Rx buffer size per descriptor supported by HW. The value is not enforced, information only to application to optimize mbuf size. Its value is UINT32\_MAX when not specified by the driver. Definition at line **1789** of file **rte\_ethdev.h**. ### uint32\_t max\_rx\_pktlen Maximum configurable length of Rx pkt. Definition at line **1790** of file **rte\_ethdev.h**. ### uint32\_t max\_lro\_pkt\_size Maximum configurable size of LRO aggregated packet. Definition at line **1792** of file **rte\_ethdev.h**. ### uint16\_t max\_rx\_queues Maximum number of Rx queues. Definition at line **1793** of file **rte\_ethdev.h**. ### uint16\_t max\_tx\_queues Maximum number of Tx queues. Definition at line **1794** of file **rte\_ethdev.h**. ### uint32\_t max\_mac\_addrs Maximum number of MAC addresses. Definition at line **1795** of file **rte\_ethdev.h**. ### uint32\_t max\_hash\_mac\_addrs Maximum number of hash MAC addresses for MTA and UTA. Definition at line **1797** of file **rte\_ethdev.h**. ### uint16\_t max\_vfs Maximum number of VFs. Definition at line **1798** of file **rte\_ethdev.h**. ### uint16\_t max\_vmdq\_pools Maximum number of VMDq pools. Definition at line **1799** of file **rte\_ethdev.h**. ### struct rte\_eth\_rxseg\_capa rx\_seg\_capa Segmentation capability. Definition at line **1800** of file **rte\_ethdev.h**. ### uint64\_t rx\_offload\_capa All Rx offload capabilities including all per-queue ones Definition at line **1802** of file **rte\_ethdev.h**. ### uint64\_t tx\_offload\_capa All Tx offload capabilities including all per-queue ones Definition at line **1804** of file **rte\_ethdev.h**. ### uint64\_t rx\_queue\_offload\_capa Device per-queue Rx offload capabilities. Definition at line **1806** of file **rte\_ethdev.h**. ### uint64\_t tx\_queue\_offload\_capa Device per-queue Tx offload capabilities. Definition at line **1808** of file **rte\_ethdev.h**. ### uint16\_t reta\_size Device redirection table size, the total number of entries. Definition at line **1810** of file **rte\_ethdev.h**. ### uint8\_t hash\_key\_size Hash key size in bytes Definition at line **1811** of file **rte\_ethdev.h**. ### uint64\_t flow\_type\_rss\_offloads RSS hash algorithms capabilities Bit mask of RSS offloads, the bit offset also means flow type Definition at line **1814** of file **rte\_ethdev.h**. ### struct rte\_eth\_rxconf default\_rxconf Default Rx configuration Definition at line **1815** of file **rte\_ethdev.h**. ### struct rte\_eth\_txconf default\_txconf Default Tx configuration Definition at line **1816** of file **rte\_ethdev.h**. ### uint16\_t vmdq\_queue\_base First queue ID for VMDq pools. Definition at line **1817** of file **rte\_ethdev.h**. ### uint16\_t vmdq\_queue\_num Queue number for VMDq pools. Definition at line **1818** of file **rte\_ethdev.h**. ### uint16\_t vmdq\_pool\_base First ID of VMDq pools. Definition at line **1819** of file **rte\_ethdev.h**. ### struct rte\_eth\_desc\_lim rx\_desc\_lim Rx descriptors limits Definition at line **1820** of file **rte\_ethdev.h**. ### struct rte\_eth\_desc\_lim tx\_desc\_lim Tx descriptors limits Definition at line **1821** of file **rte\_ethdev.h**. ### uint32\_t speed\_capa Supported speeds bitmap (RTE\_ETH\_LINK\_SPEED\_). Definition at line **1822** of file **rte\_ethdev.h**. ### uint16\_t nb\_rx\_queues Configured number of Rx/Tx queues Number of Rx queues. Definition at line **1824** of file **rte\_ethdev.h**. ### uint16\_t nb\_tx\_queues Number of Tx queues. Definition at line **1825** of file **rte\_ethdev.h**. ### uint16\_t max\_rx\_mempools Maximum number of Rx mempools supported per Rx queue. Value greater than 0 means that the driver supports Rx queue mempools specification via rx\_conf-\>rx\_mempools. Definition at line **1832** of file **rte\_ethdev.h**. ### struct rte\_eth\_dev\_portconf default\_rxportconf Rx parameter recommendations Definition at line **1834** of file **rte\_ethdev.h**. ### struct rte\_eth\_dev\_portconf default\_txportconf Tx parameter recommendations Definition at line **1836** of file **rte\_ethdev.h**. ### uint64\_t dev\_capa Generic device capabilities (RTE\_ETH\_DEV\_CAPA\_). Definition at line **1838** of file **rte\_ethdev.h**. ### struct rte\_eth\_switch\_info switch\_info Switching information for ports on a device with a embedded managed interconnect/switch. Definition at line **1843** of file **rte\_ethdev.h**. ### enum rte\_eth\_err\_handle\_mode err\_handle\_mode Supported error handling mode. Definition at line **1845** of file **rte\_ethdev.h**. ### uint64\_t reserved\_64s\[2\] Reserved for future fields Definition at line **1847** of file **rte\_ethdev.h**. ### void\* reserved\_ptrs\[2\] Reserved for future fields Definition at line **1848** of file **rte\_ethdev.h**. ## Author Generated automatically by Doxygen for DPDK from the source code.