Provide link state reporting so that ifconfig_llan0="DHCP" works. The

reported link state is fictional (always up) since the hypervisor does
not provide this information.

MFC after:	1 week

1 files changed, 38 insertions, 0 deletions

diff --git a/sys/powerpc/pseries/phyp_llan.c b/sys/powerpc/pseries/phyp_llan.c
index 04e359d..e35124c 100644
--- a/sys/powerpc/pseries/phyp_llan.c
+++ b/sys/powerpc/pseries/phyp_llan.c
@@ -87,6 +87,8 @@ struct llan_softc {
 	cell_t		unit;
 	uint8_t		mac_address[8];
 
+	struct ifmedia	media;
+
 	int		irqid;
 	struct resource	*irq;
 	void		*irq_cookie;
@@ -116,6 +118,8 @@ static void	llan_intr(void *xsc);
 static void	llan_init(void *xsc);
 static void	llan_start(struct ifnet *ifp);
 static int	llan_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
+static void	llan_media_status(struct ifnet *ifp, struct ifmediareq *ifmr);
+static int	llan_media_change(struct ifnet *ifp);
 static void	llan_rx_load_cb(void *xsc, bus_dma_segment_t *segs, int nsegs,
 		    int err);
 static int	llan_add_rxbuf(struct llan_softc *sc, struct llan_xfer *rx);
@@ -220,16 +224,46 @@ llan_attach(device_t dev)
 	sc->ifp->if_ioctl = llan_ioctl;
 	sc->ifp->if_init = llan_init;
 
+	ifmedia_init(&sc->media, IFM_IMASK, llan_media_change,
+	    llan_media_status);
+	ifmedia_add(&sc->media, IFM_ETHER | IFM_AUTO, 0, NULL);
+	ifmedia_set(&sc->media, IFM_ETHER | IFM_AUTO);
+
 	IFQ_SET_MAXLEN(&sc->ifp->if_snd, LLAN_MAX_TX_PACKETS);
 	sc->ifp->if_snd.ifq_drv_maxlen = LLAN_MAX_TX_PACKETS;
 	IFQ_SET_READY(&sc->ifp->if_snd);
 
 	ether_ifattach(sc->ifp, &sc->mac_address[2]);
 
+	/* We don't have link state reporting, so make it always up */
+	if_link_state_change(sc->ifp, LINK_STATE_UP);
+
+	return (0);
+}
+
+static int
+llan_media_change(struct ifnet *ifp)
+{
+	struct llan_softc *sc = ifp->if_softc;
+
+	if (IFM_TYPE(sc->media.ifm_media) != IFM_ETHER)
+		return (EINVAL);
+
+	if (IFM_SUBTYPE(sc->media.ifm_media) != IFM_AUTO)
+		return (EINVAL);
+
 	return (0);
 }
 
 static void
+llan_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
+{
+
+	ifmr->ifm_status = IFM_AVALID | IFM_ACTIVE | IFM_UNKNOWN | IFM_FDX;
+	ifmr->ifm_active = IFM_ETHER;
+}
+
+static void
 llan_rx_load_cb(void *xsc, bus_dma_segment_t *segs, int nsegs, int err)
 {
 	struct llan_softc *sc = xsc;
@@ -501,6 +535,10 @@ llan_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 			llan_set_multicast(sc);
 		mtx_unlock(&sc->io_lock);
 		break;
+	case SIOCGIFMEDIA:
+	case SIOCSIFMEDIA:
+		err = ifmedia_ioctl(ifp, (struct ifreq *)data, &sc->media, cmd);
+		break;
 	case SIOCSIFFLAGS:
 	default:
 		err = ether_ioctl(ifp, cmd, data);