diff --git a/sys/compat/linux/linux_ioctl.h b/sys/compat/linux/linux_ioctl.h
--- a/sys/compat/linux/linux_ioctl.h
+++ b/sys/compat/linux/linux_ioctl.h
@@ -247,6 +247,7 @@
 #define	LINUX_SIOCGIFINDEX	0x8933
 #define	LINUX_SIOGIFINDEX	LINUX_SIOCGIFINDEX
 #define	LINUX_SIOCGIFCOUNT	0x8938
+#define	LINUX_SIOCETHTOOL	0x8946
 
 #define	LINUX_IOCTL_SOCKET_MIN	LINUX_FIOSETOWN
 #define	LINUX_IOCTL_SOCKET_MAX	LINUX_SIOCGIFCOUNT
diff --git a/sys/compat/linux/linux_ioctl.c b/sys/compat/linux/linux_ioctl.c
--- a/sys/compat/linux/linux_ioctl.c
+++ b/sys/compat/linux/linux_ioctl.c
@@ -2351,6 +2351,58 @@
 	return (copyout(&lifr, uifr, sizeof(lifr)));
 }
 
+struct linux_ethtool_cmd {
+	unsigned int cmd;
+	unsigned int supported;
+	unsigned int advertising;
+	unsigned short speed;
+	unsigned char duplex;
+	unsigned char port;
+	unsigned char phy_address;
+	unsigned char transceiver;
+	unsigned char autoneg;
+	unsigned char mdio_support;
+	unsigned int  maxtxpkt;
+	unsigned int  maxrxpkt;
+	unsigned short speed_hi;
+	unsigned char eth_tp_mdix;
+	unsigned char eth_tp_mdix_ctrl;
+	unsigned int  lp_advertising;
+	unsigned int reserved[2];
+};
+
+static int
+linux_ethtool(struct thread *td, struct l_ifreq *ulifr)
+{
+	struct l_ifreq lifr;
+	struct linux_ethtool_cmd lecmd, *p_ulecmd = NULL;
+	int error;
+	struct epoch_tracker et;
+	struct ifnet *ifp = NULL;
+
+	error = copyin(ulifr, &lifr, sizeof(lifr));
+	if (error != 0)
+		return (error);
+
+	p_ulecmd = (struct linux_ethtool_cmd *)((uint64_t)(lifr.ifr_ifru.ifru_data));
+	if ((error = copyin(p_ulecmd, &lecmd, sizeof(lecmd))))
+		return error;
+
+	CURVNET_SET(TD_TO_VNET(td));
+	NET_EPOCH_ENTER(et);
+	ifp = ifname_linux_to_ifp(td, lifr.ifr_name);
+	if (ifp != NULL) {
+		lecmd.speed = ifp->if_baudrate / 1000 / 1000;
+	}
+	NET_EPOCH_EXIT(et);
+	CURVNET_RESTORE();
+
+	if (ifp != NULL) {
+		return copyout(&lecmd, p_ulecmd, sizeof(lecmd));
+	} else {
+		return EINVAL;
+	}
+}
 /*
  * Socket related ioctls
  */
@@ -2435,6 +2487,10 @@
 		error = 0;
 		break;
 
+	case LINUX_SIOCETHTOOL:
+		error = linux_ethtool(td, (struct l_ifreq *)args->arg);
+		break;
+
 	default:
 		error = linux_ioctl_socket_ifreq(td, args->fd, args->cmd,
 		    PTRIN(args->arg));