DCB: fix kconfig option
Since the netlink option for DCB is necessary to actually be useful,
simplified the Kconfig option. In addition, added useful help text for the
Kconfig option.
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dcb/Kconfig b/net/dcb/Kconfig
index bdf3880..4066d59 100644
--- a/net/dcb/Kconfig
+++ b/net/dcb/Kconfig
@@ -1,12 +1,22 @@
config DCB
- tristate "Data Center Bridging support"
-
-config DCBNL
- bool "Data Center Bridging netlink interface support"
- depends on DCB
+ bool "Data Center Bridging support"
default n
---help---
- This option turns on the netlink interface
- (dcbnl) for Data Center Bridging capable devices.
+ This enables support for configuring Data Center Bridging (DCB)
+ features on DCB capable Ethernet adapters via rtnetlink. Say 'Y'
+ if you have a DCB capable Ethernet adapter which supports this
+ interface and you are connected to a DCB capable switch.
+
+ DCB is a collection of Ethernet enhancements which allow DCB capable
+ NICs and switches to support network traffic with differing
+ requirements (highly reliable, no drops vs. best effort vs. low
+ latency) to co-exist on Ethernet.
+
+ DCB features include:
+ Enhanced Transmission Selection (aka Priority Grouping) - provides a
+ framework for assigning bandwidth guarantees to traffic classes.
+ Priority-based Flow Control (PFC) - a MAC control pause frame which
+ works at the granularity of the 802.1p priority instead of the
+ link (802.3x).
If unsure, say N.