ethtool.h: MDI setting support

[firefly-linux-kernel-4.4.55.git] / include / linux / ethtool.h

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 21eff418091bb6d943740990cd24a7cf9d39342e..fcb4f8e60c1cbe8aa4b0f190cdd7815d25057f2c 100644 (file)
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -45,8 +45,10 @@ struct ethtool_cmd {
                                 * bits) in Mbps. Please use
                                 * ethtool_cmd_speed()/_set() to
                                 * access it */
-       __u8    eth_tp_mdix;
-       __u8    reserved2;
+       __u8    eth_tp_mdix;    /* twisted pair MDI-X status */
+       __u8    eth_tp_mdix_ctrl; /* twisted pair MDI-X control, when set,
+                                  * link should be renegotiated if necessary
+                                  */
        __u32   lp_advertising; /* Features the link partner advertises */
        __u32   reserved[2];
 };
@@ -1229,10 +1231,13 @@ struct ethtool_ops {
 #define AUTONEG_DISABLE                0x00
 #define AUTONEG_ENABLE         0x01
 
-/* Mode MDI or MDI-X */
-#define ETH_TP_MDI_INVALID     0x00
-#define ETH_TP_MDI             0x01
-#define ETH_TP_MDI_X           0x02
+/* MDI or MDI-X status/control - if MDI/MDI_X/AUTO is set then
+ * the driver is required to renegotiate link
+ */
+#define ETH_TP_MDI_INVALID     0x00 /* status: unknown; control: unsupported */
+#define ETH_TP_MDI             0x01 /* status: MDI;     control: force MDI */
+#define ETH_TP_MDI_X           0x02 /* status: MDI-X;   control: force MDI-X */
+#define ETH_TP_MDI_AUTO                0x03 /*                  control: auto-select */
 
 /* Wake-On-Lan options. */
 #define WAKE_PHY               (1 << 0)