[PATCH 1/1] ethtool: Expose MDI-X status
From: Chaitanya Lala <hidden>
Date: 2009-05-27 23:12:56
Subsystem:
the rest · Maintainer:
Linus Torvalds
Possibly related (same subject, not in this thread)
- 2009-05-22 · Re: [PATCH 1/1] ethtool: Expose MDI-X status · Ben Hutchings <hidden>
- 2009-05-22 · Re: [PATCH 1/1] ethtool: Expose MDI-X status · Stephen Hemminger <hidden>
- 2009-05-22 · [PATCH 1/1] ethtool: Expose MDI-X status · Chaitanya Lala <hidden>
The MDI-X status is a useful tool for diagnosing network connectivity issues. We expose MDI-X status as a tri-state value status which drivers can optionally implement. Signed-off-by: Chaitanya Lala <redacted> Signed-off-by: Arthur Jones <redacted> --- ethtool-copy.h | 8 +++++++- ethtool.c | 13 +++++++++++++ 2 files changed, 20 insertions(+), 1 deletions(-)
diff --git a/ethtool-copy.h b/ethtool-copy.h
index 3ca4e2c..48fb1d3 100644
--- a/ethtool-copy.h
+++ b/ethtool-copy.h@@ -26,7 +26,8 @@ struct ethtool_cmd { __u32 maxtxpkt; /* Tx pkts before generating tx int */ __u32 maxrxpkt; /* Rx pkts before generating rx int */ __u16 speed_hi; - __u16 reserved2; + __u8 is_mdix; + __u8 reserved2; __u32 reserved[3]; };
@@ -416,6 +417,11 @@ struct ethtool_rxnfc { #define AUTONEG_DISABLE 0x00 #define AUTONEG_ENABLE 0x01 +/* Mode MDI or MDI-X */ +#define MDI_INVALID 0x00 +#define MDI 0x01 +#define MDI_X 0x02 + /* Wake-On-Lan options. */ #define WAKE_PHY (1 << 0) #define WAKE_UCAST (1 << 1)
diff --git a/ethtool.c b/ethtool.c
index 0110682..bf12168 100644
--- a/ethtool.c
+++ b/ethtool.c@@ -964,6 +964,19 @@ static int dump_ecmd(struct ethtool_cmd *ep) fprintf(stdout, " Auto-negotiation: %s\n", (ep->autoneg == AUTONEG_DISABLE) ? "off" : "on"); + + switch (ep->is_mdix) { + case MDI: + fprintf(stdout, " MDI-X: off\n"); + break; + case MDI_X: + fprintf(stdout, " MDI-X: on\n"); + break; + default: + fprintf(stdout, " MDI-X: Unknown\n"); + break; + } + return 0; }
--
1.6.0.4