mdio: Expose 10GBASE-T MDI-X status via ethtool

This is available in a standard MDIO register in 10GBASE-T PHYs.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index 56851646529a..cfdf1df2875e 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -45,6 +45,7 @@
 #define MDIO_PHYXS_LNSTAT       24      /* PHY XGXS lane state */
 
 /* Media-dependent registers. */
+#define MDIO_PMA_10GBT_SWAPPOL  130     /* 10GBASE-T pair swap & polarity */
 #define MDIO_PMA_10GBT_TXPWR    131     /* 10GBASE-T TX power control */
 #define MDIO_PMA_10GBT_SNR      133     /* 10GBASE-T SNR margin, lane A.
                                          * Lanes B-D are numbered 134-136. */
@@ -195,6 +196,14 @@
 #define MDIO_PHYXS_LNSTAT_SYNC3         0x0008
 #define MDIO_PHYXS_LNSTAT_ALIGN         0x1000
 
+/* PMA 10GBASE-T pair swap & polarity */
+#define MDIO_PMA_10GBT_SWAPPOL_ABNX     0x0001  /* Pair A/B uncrossed */
+#define MDIO_PMA_10GBT_SWAPPOL_CDNX     0x0002  /* Pair C/D uncrossed */
+#define MDIO_PMA_10GBT_SWAPPOL_AREV     0x0100  /* Pair A polarity reversed */
+#define MDIO_PMA_10GBT_SWAPPOL_BREV     0x0200  /* Pair B polarity reversed */
+#define MDIO_PMA_10GBT_SWAPPOL_CREV     0x0400  /* Pair C polarity reversed */
+#define MDIO_PMA_10GBT_SWAPPOL_DREV     0x0800  /* Pair D polarity reversed */
+
 /* PMA 10GBASE-T TX power register. */
 #define MDIO_PMA_10GBT_TXPWR_SHORT      0x0001  /* Short-reach mode */