sfc: Expose 100/1000BASE-T MDI-X status via ethtool

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

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index db723c58f6f1..f4d509015f75 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -63,6 +63,7 @@
 
 /* extended status register */
 #define PMA_PMD_XSTATUS_REG     49153
+#define PMA_PMD_XSTAT_MDIX_LBN  14
 #define PMA_PMD_XSTAT_FLP_LBN   (12)
 
 /* LED control register */
@@ -741,9 +742,17 @@ tenxpress_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
 
         mdio45_ethtool_gset_npage(&efx->mdio, ecmd, adv, lpa);
 
-        if (efx->phy_type != PHY_TYPE_SFX7101)
+        if (efx->phy_type != PHY_TYPE_SFX7101) {
                 ecmd->supported |= (SUPPORTED_100baseT_Full |
                                     SUPPORTED_1000baseT_Full);
+                if (ecmd->speed != SPEED_10000) {
+                        ecmd->eth_tp_mdix =
+                                (efx_mdio_read(efx, MDIO_MMD_PMAPMD,
+                                               PMA_PMD_XSTATUS_REG) &
+                                 (1 << PMA_PMD_XSTAT_MDIX_LBN))
+                                ? ETH_TP_MDI_X : ETH_TP_MDI;
+                }
+        }
 
         /* In loopback, the PHY automatically brings up the correct interface,
          * but doesn't advertise the correct speed. So override it */