Thomas Gleixner | ec8f24b | 2019-05-19 13:07:45 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 2 | config DCB |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 3 | bool "Data Center Bridging support" |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 4 | default n |
Masahiro Yamada | a7f7f62 | 2020-06-14 01:50:22 +0900 | [diff] [blame] | 5 | help |
Jeff Kirsher | 7a6b6f5 | 2008-11-25 01:02:08 -0800 | [diff] [blame] | 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). |
Alexander Duyck | 2f90b86 | 2008-11-20 20:52:10 -0800 | [diff] [blame] | 22 | |
| 23 | If unsure, say N. |