1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 22f90b865SAlexander Duyckconfig DCB 37a6b6f51SJeff Kirsher bool "Data Center Bridging support" 42f90b865SAlexander Duyck default n 5*a7f7f624SMasahiro Yamada help 67a6b6f51SJeff Kirsher This enables support for configuring Data Center Bridging (DCB) 77a6b6f51SJeff Kirsher features on DCB capable Ethernet adapters via rtnetlink. Say 'Y' 87a6b6f51SJeff Kirsher if you have a DCB capable Ethernet adapter which supports this 97a6b6f51SJeff Kirsher interface and you are connected to a DCB capable switch. 107a6b6f51SJeff Kirsher 117a6b6f51SJeff Kirsher DCB is a collection of Ethernet enhancements which allow DCB capable 127a6b6f51SJeff Kirsher NICs and switches to support network traffic with differing 137a6b6f51SJeff Kirsher requirements (highly reliable, no drops vs. best effort vs. low 147a6b6f51SJeff Kirsher latency) to co-exist on Ethernet. 157a6b6f51SJeff Kirsher 167a6b6f51SJeff Kirsher DCB features include: 177a6b6f51SJeff Kirsher Enhanced Transmission Selection (aka Priority Grouping) - provides a 187a6b6f51SJeff Kirsher framework for assigning bandwidth guarantees to traffic classes. 197a6b6f51SJeff Kirsher Priority-based Flow Control (PFC) - a MAC control pause frame which 207a6b6f51SJeff Kirsher works at the granularity of the 802.1p priority instead of the 217a6b6f51SJeff Kirsher link (802.3x). 222f90b865SAlexander Duyck 232f90b865SAlexander Duyck If unsure, say N. 24