Port Modes - UG1739

AMD Solarflare X4 Series Ethernet Adapter User Guide (UG1739)

Document ID
UG1739
Release Date
2025-10-24
Revision
1.0 English

Port modes are configured using the Linux devlink command. See Reconfiguring the Adapter.

The port-mode is a global option and applies to all ports on the adapter.

A server reboot (power off/on) is required following changes to port modes.

Table 1. Port Modes per Model
Adapter Model Port Mode
X4522 [1x1/10/25/50G][1x1/10/25/50G]*
X4542 [1x1/10/25/40/50/100G][1x1/10/25/40/50/100G]*
[4x1/10/25G]
The mode annotated with * is the Default port mode for that model

Port modes are illustrated in the following sections.