| 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | config DCB |
| 3 | bool "Data Center Bridging support" |
| 4 | default n |
| 5 | ---help--- |
| 6 | This enables support for configuring Data Center Bridging (DCB) |
| 7 | features on DCB capable Ethernet adapters via rtnetlink. Say 'Y' |
| 8 | if you have a DCB capable Ethernet adapter which supports this |
| 9 | interface and you are connected to a DCB capable switch. |
| 10 | |
| 11 | DCB is a collection of Ethernet enhancements which allow DCB capable |
| 12 | NICs and switches to support network traffic with differing |
| 13 | requirements (highly reliable, no drops vs. best effort vs. low |
| 14 | latency) to co-exist on Ethernet. |
| 15 | |
| 16 | DCB features include: |
| 17 | Enhanced Transmission Selection (aka Priority Grouping) - provides a |
| 18 | framework for assigning bandwidth guarantees to traffic classes. |
| 19 | Priority-based Flow Control (PFC) - a MAC control pause frame which |
| 20 | works at the granularity of the 802.1p priority instead of the |
| 21 | link (802.3x). |
| 22 | |
| 23 | If unsure, say N. |