sky2: debug interface

Add an optional debug interface for displaying state of transmit/receive
rings. Creates a file debugfs/sky2/ethX for each device that is up.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 5cc3d517e39b..58c6aa28baff 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2133,6 +2133,16 @@ config SKY2
           To compile this driver as a module, choose M here: the module
           will be called sky2.  This is recommended.
 
+config SKY2_DEBUG
+       bool "Debugging interface"
+       depends on SKY2 && DEBUG_FS
+       help
+         This option adds the ability to dump driver state for debugging.
+         The file debugfs/sky2/ethX displays the state of the internal
+         transmit and receive rings.
+
+         If unsure, say N.
+
 config SK98LIN
         tristate "Marvell Yukon Chipset / SysKonnect SK-98xx Support (DEPRECATED)"
         depends on PCI