- In the spirit of previous simplifications factor out the checks for a

  different PHY instance being selected and isolation out into the wrappers
  around the service methods rather than duplicating them over and over
  again (besides, a PHY driver shouldn't need to care about which instance
  it actually is).
- Centralize the check for the need to isolate a non-zero PHY instance not
  supporting isolation in mii_mediachg() and just ignore it rather than
  panicing, which should sufficient given that a) things are likely to
  just work anyway if one doesn't plug in more than one port at a time and
  b) refusing to attach in this case just leaves us in a unknown but most
  likely also not exactly correct configuration (besides several drivers
  setting MIIF_NOISOLATE didn't care about these anyway, probably due to
  setting this flag for no real reason).
- Minor fixes like removing unnecessary setting of sc->mii_anegticks,
  using sc->mii_anegticks instead of hardcoded values etc.

1 files changed, 5 insertions, 20 deletions

diff --git a/sys/dev/mii/rlphy.c b/sys/dev/mii/rlphy.c
index e2ceb62..21cce93 100644
--- a/sys/dev/mii/rlphy.c
+++ b/sys/dev/mii/rlphy.c
@@ -139,23 +139,16 @@ rlphy_attach(device_t dev)
 	if (mii_phy_dev_probe(dev, rlphys, 0) == 0)
 		rsc->sc_is_RTL8201L++;
 	
-	/*
-	 * The RealTek PHY can never be isolated, so never allow non-zero
-	 * instances!
-	 */
-	if (mii->mii_instance != 0) {
-		device_printf(dev, "ignoring this PHY, non-zero instance\n");
-		return (ENXIO);
-	}
-
 	LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
 
-	sc->mii_inst = mii->mii_instance;
+	sc->mii_inst = mii->mii_instance++;
 	sc->mii_phy = ma->mii_phyno;
 	sc->mii_service = rlphy_service;
 	sc->mii_pdata = mii;
-	mii->mii_instance++;
 
+	/*
+	 * The RealTek PHY can never be isolated.
+	 */
 	sc->mii_flags |= MIIF_NOISOLATE;
 
 #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
@@ -165,8 +158,7 @@ rlphy_attach(device_t dev)
 
 	mii_phy_reset(sc);
 
-	sc->mii_capabilities =
-	    PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
+	sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
 	device_printf(dev, " ");
 	mii_phy_add_media(sc);
 	printf("\n");
@@ -178,13 +170,6 @@ rlphy_attach(device_t dev)
 static int
 rlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
 {
-	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
-
-	/*
-	 * We can't isolate the RealTek PHY, so it has to be the only one!
-	 */
-	if (IFM_INST(ife->ifm_media) != sc->mii_inst)
-		panic("rlphy_service: can't isolate RealTek PHY");
 
 	switch (cmd) {
 	case MII_POLLSTAT: