[PATCH] ethtool: Report MDI-X status for twisted-pair interfaces

[PATCH] ethtool: Report MDI-X status for twisted-pair interfaces

[Ben Hutchings]

Based on a patch by Chaitanya Lala <clala@riverbed.com>.

The MDI-X status can be a useful tool for diagnosing network
connectivity issues.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 ethtool.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/ethtool.c b/ethtool.c
index 827f16c..df02e91 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -1018,6 +1018,22 @@ static int dump_ecmd(struct ethtool_cmd *ep)
 	fprintf(stdout, "	Auto-negotiation: %s\n",
 		(ep->autoneg == AUTONEG_DISABLE) ?
 		"off" : "on");
+
+	if (ep->port == PORT_TP) {
+		fprintf(stdout, "	MDI-X: ");
+		switch (ep->eth_tp_mdix) {
+		case ETH_TP_MDI:
+			fprintf(stdout, "off\n");
+			break;
+		case ETH_TP_MDI_X:
+			fprintf(stdout, "on\n");
+			break;
+		default:
+			fprintf(stdout, "Unknown\n");
+			break;
+		}
+	}
+
 	return 0;
 }
 
-- 
1.5.5

-- 
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

Re: [PATCH] ethtool: Report MDI-X status for twisted-pair interfaces

[Jeff Garzik]

On 12/01/2009 11:00 AM, Ben Hutchings wrote:
> Based on a patch by Chaitanya Lala<clala@riverbed.com>.
>
> The MDI-X status can be a useful tool for diagnosing network
> connectivity issues.
>
> Signed-off-by: Ben Hutchings<bhutchings@solarflare.com>
> ---
>   ethtool.c |   16 ++++++++++++++++
>   1 files changed, 16 insertions(+), 0 deletions(-)

applied