18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_ciconfig DCB 38c2ecf20Sopenharmony_ci bool "Data Center Bridging support" 48c2ecf20Sopenharmony_ci default n 58c2ecf20Sopenharmony_ci help 68c2ecf20Sopenharmony_ci This enables support for configuring Data Center Bridging (DCB) 78c2ecf20Sopenharmony_ci features on DCB capable Ethernet adapters via rtnetlink. Say 'Y' 88c2ecf20Sopenharmony_ci if you have a DCB capable Ethernet adapter which supports this 98c2ecf20Sopenharmony_ci interface and you are connected to a DCB capable switch. 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci DCB is a collection of Ethernet enhancements which allow DCB capable 128c2ecf20Sopenharmony_ci NICs and switches to support network traffic with differing 138c2ecf20Sopenharmony_ci requirements (highly reliable, no drops vs. best effort vs. low 148c2ecf20Sopenharmony_ci latency) to co-exist on Ethernet. 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci DCB features include: 178c2ecf20Sopenharmony_ci Enhanced Transmission Selection (aka Priority Grouping) - provides a 188c2ecf20Sopenharmony_ci framework for assigning bandwidth guarantees to traffic classes. 198c2ecf20Sopenharmony_ci Priority-based Flow Control (PFC) - a MAC control pause frame which 208c2ecf20Sopenharmony_ci works at the granularity of the 802.1p priority instead of the 218c2ecf20Sopenharmony_ci link (802.3x). 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci If unsure, say N. 24