Ticket #12328: 0001-Sync-atheros813x-with-FreeBSD-v2.patch

headers/posix/net/if_media.h

@@ -32 +32 @@
 #define IFM_1000_T      16          /* 1000Base-T - RJ45 */
 #define IFM_1000_SX     18          /* 1000Base-SX - Fiber Optic */
 #define IFM_10G_T       22          /* 10GBase-T - RJ45 */
+#define IFM_UNKNOWN     25          /* media types not defined yet */
 
 /* General options */
 

src/add-ons/kernel/drivers/network/atheros813x/dev/alc/if_alc.c

@@ -49 +49 @@
 
 #include <net/bpf.h>
 #include <net/if.h>
+#include <net/if_var.h>
 #include <net/if_arp.h>
 #include <net/ethernet.h>
 #include <net/if_dl.h>
@@ -110 +111 @@
         "Atheros AR8152 v1.1 PCIe Fast Ethernet" },
     { VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8152_B2, 6 * 1024,
         "Atheros AR8152 v2.0 PCIe Fast Ethernet" },
+    { VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8161, 9 * 1024,
+        "Atheros AR8161 PCIe Gigabit Ethernet" },
+    { VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8162, 9 * 1024,
+        "Atheros AR8162 PCIe Fast Ethernet" },
+    { VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8171, 9 * 1024,
+        "Atheros AR8171 PCIe Gigabit Ethernet" },
+    { VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8172, 9 * 1024,
+        "Atheros AR8172 PCIe Fast Ethernet" },
+    { VENDORID_ATHEROS, DEVICEID_ATHEROS_E2200, 9 * 1024,
+        "Killer E2200 Gigabit Ethernet" },
+    { VENDORID_ATHEROS, DEVICEID_ATHEROS_E2400, 9 * 1024,
+        "Killer E2400 Gigabit Ethernet" },
+    { VENDORID_ATHEROS, DEVICEID_ATHEROS_E2500, 9 * 1024,
+        "Killer E2500 Gigabit Ethernet" },
     { 0, 0, 0, NULL}
 };
 
-static void alc_aspm(struct alc_softc *, int);
+static void alc_aspm(struct alc_softc *, int, int);
+static void alc_aspm_813x(struct alc_softc *, int);
+static void alc_aspm_816x(struct alc_softc *, int);
 static int  alc_attach(device_t);
 static int  alc_check_boundary(struct alc_softc *);
+static void alc_config_msi(struct alc_softc *);
 static int  alc_detach(device_t);
 static void alc_disable_l0s_l1(struct alc_softc *);
 static int  alc_dma_alloc(struct alc_softc *);
 static void alc_dma_free(struct alc_softc *);
 static void alc_dmamap_cb(void *, bus_dma_segment_t *, int, int);
+static void alc_dsp_fixup(struct alc_softc *, int);
 static int  alc_encap(struct alc_softc *, struct mbuf **);
 static struct alc_ident *
         alc_find_ident(device_t);
@@ -129 +148 @@
         alc_fixup_rx(struct ifnet *, struct mbuf *);
 #endif
 static void alc_get_macaddr(struct alc_softc *);
+static void alc_get_macaddr_813x(struct alc_softc *);
+static void alc_get_macaddr_816x(struct alc_softc *);
+static void alc_get_macaddr_par(struct alc_softc *);
 static void alc_init(void *);
 static void alc_init_cmb(struct alc_softc *);
 static void alc_init_locked(struct alc_softc *);
@@ -140 +162 @@
 static int  alc_intr(void *);
 static int  alc_ioctl(struct ifnet *, u_long, caddr_t);
 static void alc_mac_config(struct alc_softc *);
+static uint32_t alc_mii_readreg_813x(struct alc_softc *, int, int);
+static uint32_t alc_mii_readreg_816x(struct alc_softc *, int, int);
+static uint32_t alc_mii_writereg_813x(struct alc_softc *, int, int, int);
+static uint32_t alc_mii_writereg_816x(struct alc_softc *, int, int, int);
 static int  alc_miibus_readreg(device_t, int, int);
 static void alc_miibus_statchg(device_t);
 static int  alc_miibus_writereg(device_t, int, int, int);
+static uint32_t alc_miidbg_readreg(struct alc_softc *, int);
+static uint32_t alc_miidbg_writereg(struct alc_softc *, int, int);
+static uint32_t alc_miiext_readreg(struct alc_softc *, int, int);
+static uint32_t alc_miiext_writereg(struct alc_softc *, int, int, int);
 static int  alc_mediachange(struct ifnet *);
+static int  alc_mediachange_locked(struct alc_softc *);
 static void alc_mediastatus(struct ifnet *, struct ifmediareq *);
 static int  alc_newbuf(struct alc_softc *, struct alc_rxdesc *);
+static void alc_osc_reset(struct alc_softc *);
 static void alc_phy_down(struct alc_softc *);
 static void alc_phy_reset(struct alc_softc *);
+static void alc_phy_reset_813x(struct alc_softc *);
+static void alc_phy_reset_816x(struct alc_softc *);
 static int  alc_probe(device_t);
 static void alc_reset(struct alc_softc *);
 static int  alc_resume(device_t);
@@ -157 +191 @@
 static void alc_rxvlan(struct alc_softc *);
 static void alc_setlinkspeed(struct alc_softc *);
 static void alc_setwol(struct alc_softc *);
+static void alc_setwol_813x(struct alc_softc *);
+static void alc_setwol_816x(struct alc_softc *);
 static int  alc_shutdown(device_t);
 static void alc_start(struct ifnet *);
 static void alc_start_locked(struct ifnet *);
@@ -223 +259 @@
     { -1,           0,      0 }
 };
 
-static uint32_t alc_dma_burst[] = { 128, 256, 512, 1024, 2048, 4096, 0 };
+static uint32_t alc_dma_burst[] = { 128, 256, 512, 1024, 2048, 4096, 0, 0 };
 
 static int
 alc_miibus_readreg(device_t dev, int phy, int reg)
 {
     struct alc_softc *sc;
-    uint32_t v;
-    int i;
+    int v;
 
     sc = device_get_softc(dev);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        v = alc_mii_readreg_816x(sc, phy, reg);
+    else
+        v = alc_mii_readreg_813x(sc, phy, reg);
+    return (v);
+}
+
+static uint32_t
+alc_mii_readreg_813x(struct alc_softc *sc, int phy, int reg)
+{
+    uint32_t v;
+    int i;
 
     /*
      * For AR8132 fast ethernet controller, do not report 1000baseT
@@ -261 +308 @@
     return ((v & MDIO_DATA_MASK) >> MDIO_DATA_SHIFT);
 }
 
+static uint32_t
+alc_mii_readreg_816x(struct alc_softc *sc, int phy, int reg)
+{
+    uint32_t clk, v;
+    int i;
+
+    if ((sc->alc_flags & ALC_FLAG_LINK) != 0)
+        clk = MDIO_CLK_25_128;
+    else
+        clk = MDIO_CLK_25_4;
+    CSR_WRITE_4(sc, ALC_MDIO, MDIO_OP_EXECUTE | MDIO_OP_READ |
+        MDIO_SUP_PREAMBLE | clk | MDIO_REG_ADDR(reg));
+    for (i = ALC_PHY_TIMEOUT; i > 0; i--) {
+        DELAY(5);
+        v = CSR_READ_4(sc, ALC_MDIO);
+        if ((v & MDIO_OP_BUSY) == 0)
+            break;
+    }
+
+    if (i == 0) {
+        device_printf(sc->alc_dev, "phy read timeout : %d\n", reg);
+        return (0);
+    }
+
+    return ((v & MDIO_DATA_MASK) >> MDIO_DATA_SHIFT);
+}
+
 static int
 alc_miibus_writereg(device_t dev, int phy, int reg, int val)
 {
     struct alc_softc *sc;
-    uint32_t v;
-    int i;
+    int v;
 
     sc = device_get_softc(dev);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        v = alc_mii_writereg_816x(sc, phy, reg, val);
+    else
+        v = alc_mii_writereg_813x(sc, phy, reg, val);
+    return (v);
+}
+
+static uint32_t
+alc_mii_writereg_813x(struct alc_softc *sc, int phy, int reg, int val)
+{
+    uint32_t v;
+    int i;
 
     CSR_WRITE_4(sc, ALC_MDIO, MDIO_OP_EXECUTE | MDIO_OP_WRITE |
         (val & MDIO_DATA_MASK) << MDIO_DATA_SHIFT |
@@ -286 +371 @@
     return (0);
 }
 
+static uint32_t
+alc_mii_writereg_816x(struct alc_softc *sc, int phy, int reg, int val)
+{
+    uint32_t clk, v;
+    int i;
+
+    if ((sc->alc_flags & ALC_FLAG_LINK) != 0)
+        clk = MDIO_CLK_25_128;
+    else
+        clk = MDIO_CLK_25_4;
+    CSR_WRITE_4(sc, ALC_MDIO, MDIO_OP_EXECUTE | MDIO_OP_WRITE |
+        ((val & MDIO_DATA_MASK) << MDIO_DATA_SHIFT) | MDIO_REG_ADDR(reg) |
+        MDIO_SUP_PREAMBLE | clk);
+    for (i = ALC_PHY_TIMEOUT; i > 0; i--) {
+        DELAY(5);
+        v = CSR_READ_4(sc, ALC_MDIO);
+        if ((v & MDIO_OP_BUSY) == 0)
+            break;
+    }
+
+    if (i == 0)
+        device_printf(sc->alc_dev, "phy write timeout : %d\n", reg);
+
+    return (0);
+}
+
 static void
 alc_miibus_statchg(device_t dev)
 {
@@ -318 +429 @@
             break;
         }
     }
-    alc_stop_queue(sc);
     /* Stop Rx/Tx MACs. */
     alc_stop_mac(sc);
 
@@ -330 +440 @@
         reg = CSR_READ_4(sc, ALC_MAC_CFG);
         reg |= MAC_CFG_TX_ENB | MAC_CFG_RX_ENB;
         CSR_WRITE_4(sc, ALC_MAC_CFG, reg);
-        alc_aspm(sc, IFM_SUBTYPE(mii->mii_media_active));
+    }
+    alc_aspm(sc, 0, IFM_SUBTYPE(mii->mii_media_active));
+    alc_dsp_fixup(sc, IFM_SUBTYPE(mii->mii_media_active));
+}
+
+static uint32_t
+alc_miidbg_readreg(struct alc_softc *sc, int reg)
+{
+
+    alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr, ALC_MII_DBG_ADDR,
+        reg);
+    return (alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
+        ALC_MII_DBG_DATA));
+}
+
+static uint32_t
+alc_miidbg_writereg(struct alc_softc *sc, int reg, int val)
+{
+
+    alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr, ALC_MII_DBG_ADDR,
+        reg);
+    return (alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
+        ALC_MII_DBG_DATA, val));
+}
+
+static uint32_t
+alc_miiext_readreg(struct alc_softc *sc, int devaddr, int reg)
+{
+    uint32_t clk, v;
+    int i;
+
+    CSR_WRITE_4(sc, ALC_EXT_MDIO, EXT_MDIO_REG(reg) |
+        EXT_MDIO_DEVADDR(devaddr));
+    if ((sc->alc_flags & ALC_FLAG_LINK) != 0)
+        clk = MDIO_CLK_25_128;
+    else
+        clk = MDIO_CLK_25_4;
+    CSR_WRITE_4(sc, ALC_MDIO, MDIO_OP_EXECUTE | MDIO_OP_READ |
+        MDIO_SUP_PREAMBLE | clk | MDIO_MODE_EXT);
+    for (i = ALC_PHY_TIMEOUT; i > 0; i--) {
+        DELAY(5);
+        v = CSR_READ_4(sc, ALC_MDIO);
+        if ((v & MDIO_OP_BUSY) == 0)
+            break;
+    }
+
+    if (i == 0) {
+        device_printf(sc->alc_dev, "phy ext read timeout : %d, %d\n",
+            devaddr, reg);
+        return (0);
+    }
+
+    return ((v & MDIO_DATA_MASK) >> MDIO_DATA_SHIFT);
+}
+
+static uint32_t
+alc_miiext_writereg(struct alc_softc *sc, int devaddr, int reg, int val)
+{
+    uint32_t clk, v;
+    int i;
+
+    CSR_WRITE_4(sc, ALC_EXT_MDIO, EXT_MDIO_REG(reg) |
+        EXT_MDIO_DEVADDR(devaddr));
+    if ((sc->alc_flags & ALC_FLAG_LINK) != 0)
+        clk = MDIO_CLK_25_128;
+    else
+        clk = MDIO_CLK_25_4;
+    CSR_WRITE_4(sc, ALC_MDIO, MDIO_OP_EXECUTE | MDIO_OP_WRITE |
+        ((val & MDIO_DATA_MASK) << MDIO_DATA_SHIFT) |
+        MDIO_SUP_PREAMBLE | clk | MDIO_MODE_EXT);
+    for (i = ALC_PHY_TIMEOUT; i > 0; i--) {
+        DELAY(5);
+        v = CSR_READ_4(sc, ALC_MDIO);
+        if ((v & MDIO_OP_BUSY) == 0)
+            break;
+    }
+
+    if (i == 0)
+        device_printf(sc->alc_dev, "phy ext write timeout : %d, %d\n",
+            devaddr, reg);
+
+    return (0);
+}
+
+static void
+alc_dsp_fixup(struct alc_softc *sc, int media)
+{
+    uint16_t agc, len, val;
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        return;
+    if (AR816X_REV(sc->alc_rev) >= AR816X_REV_C0)
+        return;
+
+    /*
+     * Vendor PHY magic.
+     * 1000BT/AZ, wrong cable length
+     */
+    if ((sc->alc_flags & ALC_FLAG_LINK) != 0) {
+        len = alc_miiext_readreg(sc, MII_EXT_PCS, MII_EXT_CLDCTL6);
+        len = (len >> EXT_CLDCTL6_CAB_LEN_SHIFT) &
+            EXT_CLDCTL6_CAB_LEN_MASK;
+        agc = alc_miidbg_readreg(sc, MII_DBG_AGC);
+        agc = (agc >> DBG_AGC_2_VGA_SHIFT) & DBG_AGC_2_VGA_MASK;
+        if ((media == IFM_1000_T && len > EXT_CLDCTL6_CAB_LEN_SHORT1G &&
+            agc > DBG_AGC_LONG1G_LIMT) ||
+            (media == IFM_100_TX && len > DBG_AGC_LONG100M_LIMT &&
+            agc > DBG_AGC_LONG1G_LIMT)) {
+            alc_miidbg_writereg(sc, MII_DBG_AZ_ANADECT,
+                DBG_AZ_ANADECT_LONG);
+            val = alc_miiext_readreg(sc, MII_EXT_ANEG,
+                MII_EXT_ANEG_AFE);
+            val |= ANEG_AFEE_10BT_100M_TH;
+            alc_miiext_writereg(sc, MII_EXT_ANEG, MII_EXT_ANEG_AFE,
+                val);
+        } else {
+            alc_miidbg_writereg(sc, MII_DBG_AZ_ANADECT,
+                DBG_AZ_ANADECT_DEFAULT);
+            val = alc_miiext_readreg(sc, MII_EXT_ANEG,
+                MII_EXT_ANEG_AFE);
+            val &= ~ANEG_AFEE_10BT_100M_TH;
+            alc_miiext_writereg(sc, MII_EXT_ANEG, MII_EXT_ANEG_AFE,
+                val);
+        }
+        if ((sc->alc_flags & ALC_FLAG_LINK_WAR) != 0 &&
+            AR816X_REV(sc->alc_rev) == AR816X_REV_B0) {
+            if (media == IFM_1000_T) {
+                /*
+                 * Giga link threshold, raise the tolerance of
+                 * noise 50%.
+                 */
+                val = alc_miidbg_readreg(sc, MII_DBG_MSE20DB);
+                val &= ~DBG_MSE20DB_TH_MASK;
+                val |= (DBG_MSE20DB_TH_HI <<
+                    DBG_MSE20DB_TH_SHIFT);
+                alc_miidbg_writereg(sc, MII_DBG_MSE20DB, val);
+            } else if (media == IFM_100_TX)
+                alc_miidbg_writereg(sc, MII_DBG_MSE16DB,
+                    DBG_MSE16DB_UP);
+        }
+    } else {
+        val = alc_miiext_readreg(sc, MII_EXT_ANEG, MII_EXT_ANEG_AFE);
+        val &= ~ANEG_AFEE_10BT_100M_TH;
+        alc_miiext_writereg(sc, MII_EXT_ANEG, MII_EXT_ANEG_AFE, val);
+        if ((sc->alc_flags & ALC_FLAG_LINK_WAR) != 0 &&
+            AR816X_REV(sc->alc_rev) == AR816X_REV_B0) {
+            alc_miidbg_writereg(sc, MII_DBG_MSE16DB,
+                DBG_MSE16DB_DOWN);
+            val = alc_miidbg_readreg(sc, MII_DBG_MSE20DB);
+            val &= ~DBG_MSE20DB_TH_MASK;
+            val |= (DBG_MSE20DB_TH_DEFAULT << DBG_MSE20DB_TH_SHIFT);
+            alc_miidbg_writereg(sc, MII_DBG_MSE20DB, val);
+        }
     }
 }
 
@@ -358 +620 @@
 alc_mediachange(struct ifnet *ifp)
 {
     struct alc_softc *sc;
-    struct mii_data *mii;
-    struct mii_softc *miisc;
     int error;
 
     sc = ifp->if_softc;
     ALC_LOCK(sc);
+    error = alc_mediachange_locked(sc);
+    ALC_UNLOCK(sc);
+
+    return (error);
+}
+
+static int
+alc_mediachange_locked(struct alc_softc *sc)
+{
+    struct mii_data *mii;
+    struct mii_softc *miisc;
+    int error;
+
+    ALC_LOCK_ASSERT(sc);
+
     mii = device_get_softc(sc->alc_miibus);
     LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
         PHY_RESET(miisc);
     error = mii_mediachg(mii);
-    ALC_UNLOCK(sc);
 
     return (error);
 }
@@ -406 +680 @@
 static void
 alc_get_macaddr(struct alc_softc *sc)
 {
-    uint32_t ea[2], opt;
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        alc_get_macaddr_816x(sc);
+    else
+        alc_get_macaddr_813x(sc);
+}
+
+static void
+alc_get_macaddr_813x(struct alc_softc *sc)
+{
+    uint32_t opt;
     uint16_t val;
     int eeprom, i;
 
@@ -501 +785 @@
         }
     }
 
+    alc_get_macaddr_par(sc);
+}
+
+static void
+alc_get_macaddr_816x(struct alc_softc *sc)
+{
+    uint32_t reg;
+    int i, reloaded;
+
+    reloaded = 0;
+    /* Try to reload station address via TWSI. */
+    for (i = 100; i > 0; i--) {
+        reg = CSR_READ_4(sc, ALC_SLD);
+        if ((reg & (SLD_PROGRESS | SLD_START)) == 0)
+            break;
+        DELAY(1000);
+    }
+    if (i != 0) {
+        CSR_WRITE_4(sc, ALC_SLD, reg | SLD_START);
+        for (i = 100; i > 0; i--) {
+            DELAY(1000);
+            reg = CSR_READ_4(sc, ALC_SLD);
+            if ((reg & SLD_START) == 0)
+                break;
+        }
+        if (i != 0)
+            reloaded++;
+        else if (bootverbose)
+            device_printf(sc->alc_dev,
+                "reloading station address via TWSI timed out!\n");
+    }
+
+    /* Try to reload station address from EEPROM or FLASH. */
+    if (reloaded == 0) {
+        reg = CSR_READ_4(sc, ALC_EEPROM_LD);
+        if ((reg & (EEPROM_LD_EEPROM_EXIST |
+            EEPROM_LD_FLASH_EXIST)) != 0) {
+            for (i = 100; i > 0; i--) {
+                reg = CSR_READ_4(sc, ALC_EEPROM_LD);
+                if ((reg & (EEPROM_LD_PROGRESS |
+                    EEPROM_LD_START)) == 0)
+                    break;
+                DELAY(1000);
+            }
+            if (i != 0) {
+                CSR_WRITE_4(sc, ALC_EEPROM_LD, reg |
+                    EEPROM_LD_START);
+                for (i = 100; i > 0; i--) {
+                    DELAY(1000);
+                    reg = CSR_READ_4(sc, ALC_EEPROM_LD);
+                    if ((reg & EEPROM_LD_START) == 0)
+                        break;
+                }
+            } else if (bootverbose)
+                device_printf(sc->alc_dev,
+                    "reloading EEPROM/FLASH timed out!\n");
+        }
+    }
+
+    alc_get_macaddr_par(sc);
+}
+
+static void
+alc_get_macaddr_par(struct alc_softc *sc)
+{
+    uint32_t ea[2];
+
     ea[0] = CSR_READ_4(sc, ALC_PAR0);
     ea[1] = CSR_READ_4(sc, ALC_PAR1);
     sc->alc_eaddr[0] = (ea[1] >> 8) & 0xFF;
@@ -516 +867 @@
 {
     uint32_t pmcfg;
 
-    /* Another magic from vendor. */
-    pmcfg = CSR_READ_4(sc, ALC_PM_CFG);
-    pmcfg &= ~(PM_CFG_L1_ENTRY_TIMER_MASK | PM_CFG_CLK_SWH_L1 |
-        PM_CFG_ASPM_L0S_ENB | PM_CFG_ASPM_L1_ENB | PM_CFG_MAC_ASPM_CHK |
-        PM_CFG_SERDES_PD_EX_L1);
-    pmcfg |= PM_CFG_SERDES_BUDS_RX_L1_ENB | PM_CFG_SERDES_PLL_L1_ENB |
-        PM_CFG_SERDES_L1_ENB;
-    CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        /* Another magic from vendor. */
+        pmcfg = CSR_READ_4(sc, ALC_PM_CFG);
+        pmcfg &= ~(PM_CFG_L1_ENTRY_TIMER_MASK | PM_CFG_CLK_SWH_L1 |
+            PM_CFG_ASPM_L0S_ENB | PM_CFG_ASPM_L1_ENB |
+            PM_CFG_MAC_ASPM_CHK | PM_CFG_SERDES_PD_EX_L1);
+        pmcfg |= PM_CFG_SERDES_BUDS_RX_L1_ENB |
+            PM_CFG_SERDES_PLL_L1_ENB | PM_CFG_SERDES_L1_ENB;
+        CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
+    }
 }
 
 static void
 alc_phy_reset(struct alc_softc *sc)
 {
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        alc_phy_reset_816x(sc);
+    else
+        alc_phy_reset_813x(sc);
+}
+
+static void
+alc_phy_reset_813x(struct alc_softc *sc)
+{
     uint16_t data;
 
     /* Reset magic from Linux. */
@@ -641 +1004 @@
 }
 
 static void
+alc_phy_reset_816x(struct alc_softc *sc)
+{
+    uint32_t val;
+
+    val = CSR_READ_4(sc, ALC_GPHY_CFG);
+    val &= ~(GPHY_CFG_EXT_RESET | GPHY_CFG_LED_MODE |
+        GPHY_CFG_GATE_25M_ENB | GPHY_CFG_PHY_IDDQ | GPHY_CFG_PHY_PLL_ON |
+        GPHY_CFG_PWDOWN_HW | GPHY_CFG_100AB_ENB);
+    val |= GPHY_CFG_SEL_ANA_RESET;
+#ifdef notyet
+    val |= GPHY_CFG_HIB_PULSE | GPHY_CFG_HIB_EN | GPHY_CFG_SEL_ANA_RESET;
+#else
+    /* Disable PHY hibernation. */
+    val &= ~(GPHY_CFG_HIB_PULSE | GPHY_CFG_HIB_EN);
+#endif
+    CSR_WRITE_4(sc, ALC_GPHY_CFG, val);
+    DELAY(10);
+    CSR_WRITE_4(sc, ALC_GPHY_CFG, val | GPHY_CFG_EXT_RESET);
+    DELAY(800);
+
+    /* Vendor PHY magic. */
+#ifdef notyet
+    alc_miidbg_writereg(sc, MII_DBG_LEGCYPS, DBG_LEGCYPS_DEFAULT);
+    alc_miidbg_writereg(sc, MII_DBG_SYSMODCTL, DBG_SYSMODCTL_DEFAULT);
+    alc_miiext_writereg(sc, MII_EXT_PCS, MII_EXT_VDRVBIAS,
+        EXT_VDRVBIAS_DEFAULT);
+#else
+    /* Disable PHY hibernation. */
+    alc_miidbg_writereg(sc, MII_DBG_LEGCYPS,
+        DBG_LEGCYPS_DEFAULT & ~DBG_LEGCYPS_ENB);
+    alc_miidbg_writereg(sc, MII_DBG_HIBNEG,
+        DBG_HIBNEG_DEFAULT & ~(DBG_HIBNEG_PSHIB_EN | DBG_HIBNEG_HIB_PULSE));
+    alc_miidbg_writereg(sc, MII_DBG_GREENCFG, DBG_GREENCFG_DEFAULT);
+#endif
+
+    /* XXX Disable EEE. */
+    val = CSR_READ_4(sc, ALC_LPI_CTL);
+    val &= ~LPI_CTL_ENB;
+    CSR_WRITE_4(sc, ALC_LPI_CTL, val);
+    alc_miiext_writereg(sc, MII_EXT_ANEG, MII_EXT_ANEG_LOCAL_EEEADV, 0);
+
+    /* PHY power saving. */
+    alc_miidbg_writereg(sc, MII_DBG_TST10BTCFG, DBG_TST10BTCFG_DEFAULT);
+    alc_miidbg_writereg(sc, MII_DBG_SRDSYSMOD, DBG_SRDSYSMOD_DEFAULT);
+    alc_miidbg_writereg(sc, MII_DBG_TST100BTCFG, DBG_TST100BTCFG_DEFAULT);
+    alc_miidbg_writereg(sc, MII_DBG_ANACTL, DBG_ANACTL_DEFAULT);
+    val = alc_miidbg_readreg(sc, MII_DBG_GREENCFG2);
+    val &= ~DBG_GREENCFG2_GATE_DFSE_EN;
+    alc_miidbg_writereg(sc, MII_DBG_GREENCFG2, val);
+
+    /* RTL8139C, 120m issue. */
+    alc_miiext_writereg(sc, MII_EXT_ANEG, MII_EXT_ANEG_NLP78,
+        ANEG_NLP78_120M_DEFAULT);
+    alc_miiext_writereg(sc, MII_EXT_ANEG, MII_EXT_ANEG_S3DIG10,
+        ANEG_S3DIG10_DEFAULT);
+
+    if ((sc->alc_flags & ALC_FLAG_LINK_WAR) != 0) {
+        /* Turn off half amplitude. */
+        val = alc_miiext_readreg(sc, MII_EXT_PCS, MII_EXT_CLDCTL3);
+        val |= EXT_CLDCTL3_BP_CABLE1TH_DET_GT;
+        alc_miiext_writereg(sc, MII_EXT_PCS, MII_EXT_CLDCTL3, val);
+        /* Turn off Green feature. */
+        val = alc_miidbg_readreg(sc, MII_DBG_GREENCFG2);
+        val |= DBG_GREENCFG2_BP_GREEN;
+        alc_miidbg_writereg(sc, MII_DBG_GREENCFG2, val);
+        /* Turn off half bias. */
+        val = alc_miiext_readreg(sc, MII_EXT_PCS, MII_EXT_CLDCTL5);
+        val |= EXT_CLDCTL5_BP_VD_HLFBIAS;
+        alc_miiext_writereg(sc, MII_EXT_PCS, MII_EXT_CLDCTL5, val);
+    }
+}
+
+static void
 alc_phy_down(struct alc_softc *sc)
 {
+    uint32_t gphy;
 
     switch (sc->alc_ident->deviceid) {
+    case DEVICEID_ATHEROS_AR8161:
+    case DEVICEID_ATHEROS_E2200:
+    case DEVICEID_ATHEROS_E2400:
+    case DEVICEID_ATHEROS_E2500:
+    case DEVICEID_ATHEROS_AR8162:
+    case DEVICEID_ATHEROS_AR8171:
+    case DEVICEID_ATHEROS_AR8172:
+        gphy = CSR_READ_4(sc, ALC_GPHY_CFG);
+        gphy &= ~(GPHY_CFG_EXT_RESET | GPHY_CFG_LED_MODE |
+            GPHY_CFG_100AB_ENB | GPHY_CFG_PHY_PLL_ON);
+        gphy |= GPHY_CFG_HIB_EN | GPHY_CFG_HIB_PULSE |
+            GPHY_CFG_SEL_ANA_RESET;
+        gphy |= GPHY_CFG_PHY_IDDQ | GPHY_CFG_PWDOWN_HW;
+        CSR_WRITE_4(sc, ALC_GPHY_CFG, gphy);
+        break;
     case DEVICEID_ATHEROS_AR8151:
     case DEVICEID_ATHEROS_AR8151_V2:
+    case DEVICEID_ATHEROS_AR8152_B:
+    case DEVICEID_ATHEROS_AR8152_B2:
         /*
          * GPHY power down caused more problems on AR8151 v2.0.
          * When driver is reloaded after GPHY power down,
@@ -672 +1126 @@
 }
 
 static void
-alc_aspm(struct alc_softc *sc, int media)
+alc_aspm(struct alc_softc *sc, int init, int media)
+{
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        alc_aspm_816x(sc, init);
+    else
+        alc_aspm_813x(sc, media);
+}
+
+static void
+alc_aspm_813x(struct alc_softc *sc, int media)
 {
     uint32_t pmcfg;
     uint16_t linkcfg;
 
-    ALC_LOCK_ASSERT(sc);
+    if ((sc->alc_flags & ALC_FLAG_LINK) == 0)
+        return;
 
     pmcfg = CSR_READ_4(sc, ALC_PM_CFG);
     if ((sc->alc_flags & (ALC_FLAG_APS | ALC_FLAG_PCIE)) ==
@@ -694 +1159 @@
 
     if ((sc->alc_flags & ALC_FLAG_APS) != 0) {
         /* Disable extended sync except AR8152 B v1.0 */
-        linkcfg &= ~0x80;
+        linkcfg &= ~PCIEM_LINK_CTL_EXTENDED_SYNC;
         if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B &&
             sc->alc_rev == ATHEROS_AR8152_B_V10)
-            linkcfg |= 0x80;
+            linkcfg |= PCIEM_LINK_CTL_EXTENDED_SYNC;
         CSR_WRITE_2(sc, sc->alc_expcap + PCIER_LINK_CTL,
             linkcfg);
         pmcfg &= ~(PM_CFG_EN_BUFS_RX_L0S | PM_CFG_SA_DLY_ENB |
@@ -758 +1223 @@
     CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
 }
 
-static int
-alc_attach(device_t dev)
+static void
+alc_aspm_816x(struct alc_softc *sc, int init)
 {
-    struct alc_softc *sc;
-    struct ifnet *ifp;
-    char *aspm_state[] = { "L0s/L1", "L0s", "L1", "L0s/L1" };
-    uint16_t burst;
-    int base, error, i, msic, msixc, state;
-    uint32_t cap, ctl, val;
-
-    error = 0;
-    sc = device_get_softc(dev);
-    sc->alc_dev = dev;
-
-    mtx_init(&sc->alc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
-        MTX_DEF);
-    callout_init_mtx(&sc->alc_tick_ch, &sc->alc_mtx, 0);
-    TASK_INIT(&sc->alc_int_task, 0, alc_int_task, sc);
-    sc->alc_ident = alc_find_ident(dev);
+    uint32_t pmcfg;
 
-    /* Map the device. */
-    pci_enable_busmaster(dev);
-    sc->alc_res_spec = alc_res_spec_mem;
-    sc->alc_irq_spec = alc_irq_spec_legacy;
-    error = bus_alloc_resources(dev, sc->alc_res_spec, sc->alc_res);
-    if (error != 0) {
-        device_printf(dev, "cannot allocate memory resources.\n");
-        goto fail;
+    pmcfg = CSR_READ_4(sc, ALC_PM_CFG);
+    pmcfg &= ~PM_CFG_L1_ENTRY_TIMER_816X_MASK;
+    pmcfg |= PM_CFG_L1_ENTRY_TIMER_816X_DEFAULT;
+    pmcfg &= ~PM_CFG_PM_REQ_TIMER_MASK;
+    pmcfg |= PM_CFG_PM_REQ_TIMER_816X_DEFAULT;
+    pmcfg &= ~PM_CFG_LCKDET_TIMER_MASK;
+    pmcfg |= PM_CFG_LCKDET_TIMER_DEFAULT;
+    pmcfg |= PM_CFG_SERDES_PD_EX_L1 | PM_CFG_CLK_SWH_L1 | PM_CFG_PCIE_RECV;
+    pmcfg &= ~(PM_CFG_RX_L1_AFTER_L0S | PM_CFG_TX_L1_AFTER_L0S |
+        PM_CFG_ASPM_L1_ENB | PM_CFG_ASPM_L0S_ENB |
+        PM_CFG_SERDES_L1_ENB | PM_CFG_SERDES_PLL_L1_ENB |
+        PM_CFG_SERDES_BUDS_RX_L1_ENB | PM_CFG_SA_DLY_ENB |
+        PM_CFG_MAC_ASPM_CHK | PM_CFG_HOTRST);
+    if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1 &&
+        (sc->alc_rev & 0x01) != 0)
+        pmcfg |= PM_CFG_SERDES_L1_ENB | PM_CFG_SERDES_PLL_L1_ENB;
+    if ((sc->alc_flags & ALC_FLAG_LINK) != 0) {
+        /* Link up, enable both L0s, L1s. */
+        pmcfg |= PM_CFG_ASPM_L0S_ENB | PM_CFG_ASPM_L1_ENB |
+            PM_CFG_MAC_ASPM_CHK;
+    } else {
+        if (init != 0)
+            pmcfg |= PM_CFG_ASPM_L0S_ENB | PM_CFG_ASPM_L1_ENB |
+                PM_CFG_MAC_ASPM_CHK;
+        else if ((sc->alc_ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
+            pmcfg |= PM_CFG_ASPM_L1_ENB | PM_CFG_MAC_ASPM_CHK;
     }
+    CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
+}
 
-    /* Set PHY address. */
-    sc->alc_phyaddr = ALC_PHY_ADDR;
+static void
+alc_init_pcie(struct alc_softc *sc)
+{
+    const char *aspm_state[] = { "L0s/L1", "L0s", "L1", "L0s/L1" };
+    uint32_t cap, ctl, val;
+    int state;
 
-    /* Initialize DMA parameters. */
-    sc->alc_dma_rd_burst = 0;
-    sc->alc_dma_wr_burst = 0;
-    sc->alc_rcb = DMA_CFG_RCB_64;
-    if (pci_find_cap(dev, PCIY_EXPRESS, &base) == 0) {
-        sc->alc_flags |= ALC_FLAG_PCIE;
-        sc->alc_expcap = base;
-        burst = CSR_READ_2(sc, base + PCIER_DEVICE_CTL);
-        sc->alc_dma_rd_burst =
-            (burst & PCIEM_CTL_MAX_READ_REQUEST) >> 12;
-        sc->alc_dma_wr_burst = (burst & PCIEM_CTL_MAX_PAYLOAD) >> 5;
-        if (bootverbose) {
-            device_printf(dev, "Read request size : %u bytes.\n",
-                alc_dma_burst[sc->alc_dma_rd_burst]);
-            device_printf(dev, "TLP payload size : %u bytes.\n",
-                alc_dma_burst[sc->alc_dma_wr_burst]);
-        }
-        if (alc_dma_burst[sc->alc_dma_rd_burst] > 1024)
-            sc->alc_dma_rd_burst = 3;
-        if (alc_dma_burst[sc->alc_dma_wr_burst] > 1024)
-            sc->alc_dma_wr_burst = 3;
-        /* Clear data link and flow-control protocol error. */
-        val = CSR_READ_4(sc, ALC_PEX_UNC_ERR_SEV);
-        val &= ~(PEX_UNC_ERR_SEV_DLP | PEX_UNC_ERR_SEV_FCP);
-        CSR_WRITE_4(sc, ALC_PEX_UNC_ERR_SEV, val);
+    /* Clear data link and flow-control protocol error. */
+    val = CSR_READ_4(sc, ALC_PEX_UNC_ERR_SEV);
+    val &= ~(PEX_UNC_ERR_SEV_DLP | PEX_UNC_ERR_SEV_FCP);
+    CSR_WRITE_4(sc, ALC_PEX_UNC_ERR_SEV, val);
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
         CSR_WRITE_4(sc, ALC_LTSSM_ID_CFG,
             CSR_READ_4(sc, ALC_LTSSM_ID_CFG) & ~LTSSM_ID_WRO_ENB);
         CSR_WRITE_4(sc, ALC_PCIE_PHYMISC,
             CSR_READ_4(sc, ALC_PCIE_PHYMISC) |
             PCIE_PHYMISC_FORCE_RCV_DET);
         if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B &&
-            pci_get_revid(dev) == ATHEROS_AR8152_B_V10) {
+            sc->alc_rev == ATHEROS_AR8152_B_V10) {
             val = CSR_READ_4(sc, ALC_PCIE_PHYMISC2);
             val &= ~(PCIE_PHYMISC2_SERDES_CDR_MASK |
                 PCIE_PHYMISC2_SERDES_TH_MASK);
@@ -831 +1286 @@
             CSR_WRITE_4(sc, ALC_PCIE_PHYMISC2, val);
         }
         /* Disable ASPM L0S and L1. */
-        cap = CSR_READ_2(sc, base + PCIER_LINK_CAP);
+        cap = CSR_READ_2(sc, sc->alc_expcap + PCIER_LINK_CAP);
         if ((cap & PCIEM_LINK_CAP_ASPM) != 0) {
-            ctl = CSR_READ_2(sc, base + PCIER_LINK_CTL);
-            if ((ctl & 0x08) != 0)
+            ctl = CSR_READ_2(sc, sc->alc_expcap + PCIER_LINK_CTL);
+            if ((ctl & PCIEM_LINK_CTL_RCB) != 0)
                 sc->alc_rcb = DMA_CFG_RCB_128;
             if (bootverbose)
-                device_printf(dev, "RCB %u bytes\n",
+                device_printf(sc->alc_dev, "RCB %u bytes\n",
                     sc->alc_rcb == DMA_CFG_RCB_64 ? 64 : 128);
-            state = ctl & 0x03;
-            if (state & 0x01)
+            state = ctl & PCIEM_LINK_CTL_ASPMC;
+            if (state & PCIEM_LINK_CTL_ASPMC_L0S)
                 sc->alc_flags |= ALC_FLAG_L0S;
-            if (state & 0x02)
+            if (state & PCIEM_LINK_CTL_ASPMC_L1)
                 sc->alc_flags |= ALC_FLAG_L1S;
             if (bootverbose)
                 device_printf(sc->alc_dev, "ASPM %s %s\n",
@@ -854 +1309 @@
                 device_printf(sc->alc_dev,
                     "no ASPM support\n");
         }
+    } else {
+        val = CSR_READ_4(sc, ALC_PDLL_TRNS1);
+        val &= ~PDLL_TRNS1_D3PLLOFF_ENB;
+        CSR_WRITE_4(sc, ALC_PDLL_TRNS1, val);
+        val = CSR_READ_4(sc, ALC_MASTER_CFG);
+        if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1 &&
+            (sc->alc_rev & 0x01) != 0) {
+            if ((val & MASTER_WAKEN_25M) == 0 ||
+                (val & MASTER_CLK_SEL_DIS) == 0) {
+                val |= MASTER_WAKEN_25M | MASTER_CLK_SEL_DIS;
+                CSR_WRITE_4(sc, ALC_MASTER_CFG, val);
+            }
+        } else {
+            if ((val & MASTER_WAKEN_25M) == 0 ||
+                (val & MASTER_CLK_SEL_DIS) != 0) {
+                val |= MASTER_WAKEN_25M;
+                val &= ~MASTER_CLK_SEL_DIS;
+                CSR_WRITE_4(sc, ALC_MASTER_CFG, val);
+            }
+        }
+    }
+    alc_aspm(sc, 1, IFM_UNKNOWN);
+}
+
+static void
+alc_config_msi(struct alc_softc *sc)
+{
+    uint32_t ctl, mod;
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        /*
+         * It seems interrupt moderation is controlled by
+         * ALC_MSI_RETRANS_TIMER register if MSI/MSIX is active.
+         * Driver uses RX interrupt moderation parameter to
+         * program ALC_MSI_RETRANS_TIMER register.
+         */
+        ctl = CSR_READ_4(sc, ALC_MSI_RETRANS_TIMER);
+        ctl &= ~MSI_RETRANS_TIMER_MASK;
+        ctl &= ~MSI_RETRANS_MASK_SEL_LINE;
+        mod = ALC_USECS(sc->alc_int_rx_mod);
+        if (mod == 0)
+            mod = 1;
+        ctl |= mod;
+        if ((sc->alc_flags & ALC_FLAG_MSIX) != 0)
+            CSR_WRITE_4(sc, ALC_MSI_RETRANS_TIMER, ctl |
+                MSI_RETRANS_MASK_SEL_STD);
+        else if ((sc->alc_flags & ALC_FLAG_MSI) != 0)
+            CSR_WRITE_4(sc, ALC_MSI_RETRANS_TIMER, ctl |
+                MSI_RETRANS_MASK_SEL_LINE);
+        else
+            CSR_WRITE_4(sc, ALC_MSI_RETRANS_TIMER, 0);
     }
+}
 
-    /* Reset PHY. */
-    alc_phy_reset(sc);
+static int
+alc_attach(device_t dev)
+{
+    struct alc_softc *sc;
+    struct ifnet *ifp;
+    int base, error, i, msic, msixc;
+    uint16_t burst;
 
-    /* Reset the ethernet controller. */
-    alc_reset(sc);
+    error = 0;
+    sc = device_get_softc(dev);
+    sc->alc_dev = dev;
+    sc->alc_rev = pci_get_revid(dev);
+
+    mtx_init(&sc->alc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
+        MTX_DEF);
+    callout_init_mtx(&sc->alc_tick_ch, &sc->alc_mtx, 0);
+    TASK_INIT(&sc->alc_int_task, 0, alc_int_task, sc);
+    sc->alc_ident = alc_find_ident(dev);
+
+    /* Map the device. */
+    pci_enable_busmaster(dev);
+    sc->alc_res_spec = alc_res_spec_mem;
+    sc->alc_irq_spec = alc_irq_spec_legacy;
+    error = bus_alloc_resources(dev, sc->alc_res_spec, sc->alc_res);
+    if (error != 0) {
+        device_printf(dev, "cannot allocate memory resources.\n");
+        goto fail;
+    }
+
+    /* Set PHY address. */
+    sc->alc_phyaddr = ALC_PHY_ADDR;
 
     /*
      * One odd thing is AR8132 uses the same PHY hardware(F1
@@ -870 +1403 @@
      * shows the same PHY model/revision number of AR8131.
      */
     switch (sc->alc_ident->deviceid) {
+    case DEVICEID_ATHEROS_E2200:
+    case DEVICEID_ATHEROS_E2400:
+    case DEVICEID_ATHEROS_E2500:
+        sc->alc_flags |= ALC_FLAG_E2X00;
+        /* FALLTHROUGH */
+    case DEVICEID_ATHEROS_AR8161:
+        if (pci_get_subvendor(dev) == VENDORID_ATHEROS &&
+            pci_get_subdevice(dev) == 0x0091 && sc->alc_rev == 0)
+            sc->alc_flags |= ALC_FLAG_LINK_WAR;
+        /* FALLTHROUGH */
+    case DEVICEID_ATHEROS_AR8171:
+        sc->alc_flags |= ALC_FLAG_AR816X_FAMILY;
+        break;
+    case DEVICEID_ATHEROS_AR8162:
+    case DEVICEID_ATHEROS_AR8172:
+        sc->alc_flags |= ALC_FLAG_FASTETHER | ALC_FLAG_AR816X_FAMILY;
+        break;
     case DEVICEID_ATHEROS_AR8152_B:
     case DEVICEID_ATHEROS_AR8152_B2:
         sc->alc_flags |= ALC_FLAG_APS;
@@ -884 +1434 @@
     default:
         break;
     }
-    sc->alc_flags |= ALC_FLAG_ASPM_MON | ALC_FLAG_JUMBO;
+    sc->alc_flags |= ALC_FLAG_JUMBO;
 
     /*
      * It seems that AR813x/AR815x has silicon bug for SMB. In
@@ -897 +1447 @@
      * Don't use Tx CMB. It is known to have silicon bug.
      */
     sc->alc_flags |= ALC_FLAG_CMB_BUG;
-    sc->alc_rev = pci_get_revid(dev);
     sc->alc_chip_rev = CSR_READ_4(sc, ALC_MASTER_CFG) >>
         MASTER_CHIP_REV_SHIFT;
     if (bootverbose) {
@@ -905 +1454 @@
             sc->alc_rev);
         device_printf(dev, "Chip id/revision : 0x%04x\n",
             sc->alc_chip_rev);
+        if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+            device_printf(dev, "AR816x revision : 0x%x\n",
+                AR816X_REV(sc->alc_rev));
     }
     device_printf(dev, "%u Tx FIFO, %u Rx FIFO\n",
         CSR_READ_4(sc, ALC_SRAM_TX_FIFO_LEN) * 8,
         CSR_READ_4(sc, ALC_SRAM_RX_FIFO_LEN) * 8);
 
+    /* Initialize DMA parameters. */
+    sc->alc_dma_rd_burst = 0;
+    sc->alc_dma_wr_burst = 0;
+    sc->alc_rcb = DMA_CFG_RCB_64;
+    if (pci_find_cap(dev, PCIY_EXPRESS, &base) == 0) {
+        sc->alc_flags |= ALC_FLAG_PCIE;
+        sc->alc_expcap = base;
+        burst = CSR_READ_2(sc, base + PCIER_DEVICE_CTL);
+        sc->alc_dma_rd_burst =
+            (burst & PCIEM_CTL_MAX_READ_REQUEST) >> 12;
+        sc->alc_dma_wr_burst = (burst & PCIEM_CTL_MAX_PAYLOAD) >> 5;
+        if (bootverbose) {
+            device_printf(dev, "Read request size : %u bytes.\n",
+                alc_dma_burst[sc->alc_dma_rd_burst]);
+            device_printf(dev, "TLP payload size : %u bytes.\n",
+                alc_dma_burst[sc->alc_dma_wr_burst]);
+        }
+        if (alc_dma_burst[sc->alc_dma_rd_burst] > 1024)
+            sc->alc_dma_rd_burst = 3;
+        if (alc_dma_burst[sc->alc_dma_wr_burst] > 1024)
+            sc->alc_dma_wr_burst = 3;
+        /*
+         * Force maximum payload size to 128 bytes for
+         * E2200/E2400/E2500.
+         * Otherwise it triggers DMA write error.
+         */
+        if ((sc->alc_flags & ALC_FLAG_E2X00) != 0)
+            sc->alc_dma_wr_burst = 0;
+        alc_init_pcie(sc);
+    }
+
+    /* Reset PHY. */
+    alc_phy_reset(sc);
+
+    /* Reset the ethernet controller. */
+    alc_stop_mac(sc);
+    alc_reset(sc);
+
     /* Allocate IRQ resources. */
     msixc = pci_msix_count(dev);
     msic = pci_msi_count(dev);
@@ -917 +1507 @@
         device_printf(dev, "MSIX count : %d\n", msixc);
         device_printf(dev, "MSI count : %d\n", msic);
     }
-    /* Prefer MSIX over MSI. */
+    if (msixc > 1)
+        msixc = 1;
+    if (msic > 1)
+        msic = 1;
+    /*
+     * Prefer MSIX over MSI.
+     * AR816x controller has a silicon bug that MSI interrupt
+     * does not assert if PCIM_CMD_INTxDIS bit of command
+     * register is set.  pci(4) was taught to handle that case.
+     */
     if (msix_disable == 0 || msi_disable == 0) {
-        if (msix_disable == 0 && msixc == ALC_MSIX_MESSAGES &&
+        if (msix_disable == 0 && msixc > 0 &&
             pci_alloc_msix(dev, &msixc) == 0) {
-            if (msic == ALC_MSIX_MESSAGES) {
+            if (msic == 1) {
                 device_printf(dev,
                     "Using %d MSIX message(s).\n", msixc);
                 sc->alc_flags |= ALC_FLAG_MSIX;
@@ -930 +1529 @@
                 pci_release_msi(dev);
         }
         if (msi_disable == 0 && (sc->alc_flags & ALC_FLAG_MSIX) == 0 &&
-            msic == ALC_MSI_MESSAGES &&
-            pci_alloc_msi(dev, &msic) == 0) {
-            if (msic == ALC_MSI_MESSAGES) {
+            msic > 0 && pci_alloc_msi(dev, &msic) == 0) {
+            if (msic == 1) {
                 device_printf(dev,
                     "Using %d MSI message(s).\n", msic);
                 sc->alc_flags |= ALC_FLAG_MSI;
@@ -951 +1549 @@
     /* Create device sysctl node. */
     alc_sysctl_node(sc);
 
-    if ((error = alc_dma_alloc(sc) != 0))
+    if ((error = alc_dma_alloc(sc)) != 0)
         goto fail;
 
     /* Load station address. */
@@ -1006 +1604 @@
      * sample boards. To safety, don't enable Tx checksum offloading
      * by default but give chance to users to toggle it if they know
      * their controllers work without problems.
+     * Fortunately, Tx checksum offloading for AR816x family
+     * seems to work.
      */
-    ifp->if_capenable &= ~IFCAP_TXCSUM;
-    ifp->if_hwassist &= ~ALC_CSUM_FEATURES;
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        ifp->if_capenable &= ~IFCAP_TXCSUM;
+        ifp->if_hwassist &= ~ALC_CSUM_FEATURES;
+    }
 
     /* Tell the upper layer(s) we support long frames. */
-    ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
+    ifp->if_hdrlen = sizeof(struct ether_vlan_header);
 
     /* Create local taskq. */
     sc->alc_tq = taskqueue_create_fast("alc_taskq", M_WAITOK,
@@ -1025 +1627 @@
     taskqueue_start_threads(&sc->alc_tq, 1, PI_NET, "%s taskq",
         device_get_nameunit(sc->alc_dev));
 
+    alc_config_msi(sc);
     if ((sc->alc_flags & ALC_FLAG_MSIX) != 0)
         msic = ALC_MSIX_MESSAGES;
     else if ((sc->alc_flags & ALC_FLAG_MSI) != 0)
@@ -1286 +1889 @@
         &stats->tx_late_colls, "Late collisions");
     ALC_SYSCTL_STAT_ADD32(ctx, child, "excess_colls",
         &stats->tx_excess_colls, "Excessive collisions");
-    ALC_SYSCTL_STAT_ADD32(ctx, child, "abort",
-        &stats->tx_abort, "Aborted frames due to Excessive collisions");
     ALC_SYSCTL_STAT_ADD32(ctx, child, "underruns",
         &stats->tx_underrun, "FIFO underruns");
     ALC_SYSCTL_STAT_ADD32(ctx, child, "desc_underruns",
@@ -1599 +2200 @@
 
     /*
      * Create Tx buffer parent tag.
-     * AR813x/AR815x allows 64bit DMA addressing of Tx/Rx buffers
+     * AR81[3567]x allows 64bit DMA addressing of Tx/Rx buffers
      * so it needs separate parent DMA tag as parent DMA address
      * space could be restricted to be within 32bit address space
      * by 4GB boundary crossing.
@@ -1734 +2335 @@
     }
     /* Tx descriptor ring. */
     if (sc->alc_cdata.alc_tx_ring_tag != NULL) {
-        if (sc->alc_cdata.alc_tx_ring_map != NULL)
+        if (sc->alc_rdata.alc_tx_ring_paddr != 0)
             bus_dmamap_unload(sc->alc_cdata.alc_tx_ring_tag,
                 sc->alc_cdata.alc_tx_ring_map);
-        if (sc->alc_cdata.alc_tx_ring_map != NULL &&
-            sc->alc_rdata.alc_tx_ring != NULL)
+        if (sc->alc_rdata.alc_tx_ring != NULL)
             bus_dmamem_free(sc->alc_cdata.alc_tx_ring_tag,
                 sc->alc_rdata.alc_tx_ring,
                 sc->alc_cdata.alc_tx_ring_map);
+        sc->alc_rdata.alc_tx_ring_paddr = 0;
         sc->alc_rdata.alc_tx_ring = NULL;
-        sc->alc_cdata.alc_tx_ring_map = NULL;
         bus_dma_tag_destroy(sc->alc_cdata.alc_tx_ring_tag);
         sc->alc_cdata.alc_tx_ring_tag = NULL;
     }
     /* Rx ring. */
     if (sc->alc_cdata.alc_rx_ring_tag != NULL) {
-        if (sc->alc_cdata.alc_rx_ring_map != NULL)
+        if (sc->alc_rdata.alc_rx_ring_paddr != 0)
             bus_dmamap_unload(sc->alc_cdata.alc_rx_ring_tag,
                 sc->alc_cdata.alc_rx_ring_map);
-        if (sc->alc_cdata.alc_rx_ring_map != NULL &&
-            sc->alc_rdata.alc_rx_ring != NULL)
+        if (sc->alc_rdata.alc_rx_ring != NULL)
             bus_dmamem_free(sc->alc_cdata.alc_rx_ring_tag,
                 sc->alc_rdata.alc_rx_ring,
                 sc->alc_cdata.alc_rx_ring_map);
+        sc->alc_rdata.alc_rx_ring_paddr = 0;
         sc->alc_rdata.alc_rx_ring = NULL;
-        sc->alc_cdata.alc_rx_ring_map = NULL;
         bus_dma_tag_destroy(sc->alc_cdata.alc_rx_ring_tag);
         sc->alc_cdata.alc_rx_ring_tag = NULL;
     }
     /* Rx return ring. */
     if (sc->alc_cdata.alc_rr_ring_tag != NULL) {
-        if (sc->alc_cdata.alc_rr_ring_map != NULL)
+        if (sc->alc_rdata.alc_rr_ring_paddr != 0)
             bus_dmamap_unload(sc->alc_cdata.alc_rr_ring_tag,
                 sc->alc_cdata.alc_rr_ring_map);
-        if (sc->alc_cdata.alc_rr_ring_map != NULL &&
-            sc->alc_rdata.alc_rr_ring != NULL)
+        if (sc->alc_rdata.alc_rr_ring != NULL)
             bus_dmamem_free(sc->alc_cdata.alc_rr_ring_tag,
                 sc->alc_rdata.alc_rr_ring,
                 sc->alc_cdata.alc_rr_ring_map);
+        sc->alc_rdata.alc_rr_ring_paddr = 0;
         sc->alc_rdata.alc_rr_ring = NULL;
-        sc->alc_cdata.alc_rr_ring_map = NULL;
         bus_dma_tag_destroy(sc->alc_cdata.alc_rr_ring_tag);
         sc->alc_cdata.alc_rr_ring_tag = NULL;
     }
     /* CMB block */
     if (sc->alc_cdata.alc_cmb_tag != NULL) {
-        if (sc->alc_cdata.alc_cmb_map != NULL)
+        if (sc->alc_rdata.alc_cmb_paddr != 0)
             bus_dmamap_unload(sc->alc_cdata.alc_cmb_tag,
                 sc->alc_cdata.alc_cmb_map);
-        if (sc->alc_cdata.alc_cmb_map != NULL &&
-            sc->alc_rdata.alc_cmb != NULL)
+        if (sc->alc_rdata.alc_cmb != NULL)
             bus_dmamem_free(sc->alc_cdata.alc_cmb_tag,
                 sc->alc_rdata.alc_cmb,
-                sc->alc_cdata.alc_cmb_map);
+                sc->alc_cdata.alc_cmb_map);     
+        sc->alc_rdata.alc_cmb_paddr = 0;
         sc->alc_rdata.alc_cmb = NULL;
-        sc->alc_cdata.alc_cmb_map = NULL;
         bus_dma_tag_destroy(sc->alc_cdata.alc_cmb_tag);
         sc->alc_cdata.alc_cmb_tag = NULL;
     }
     /* SMB block */
     if (sc->alc_cdata.alc_smb_tag != NULL) {
-        if (sc->alc_cdata.alc_smb_map != NULL)
+        if (sc->alc_rdata.alc_smb_paddr != 0)
             bus_dmamap_unload(sc->alc_cdata.alc_smb_tag,
                 sc->alc_cdata.alc_smb_map);
-        if (sc->alc_cdata.alc_smb_map != NULL &&
-            sc->alc_rdata.alc_smb != NULL)
+        if (sc->alc_rdata.alc_smb != NULL)
             bus_dmamem_free(sc->alc_cdata.alc_smb_tag,
                 sc->alc_rdata.alc_smb,
                 sc->alc_cdata.alc_smb_map);
+        sc->alc_rdata.alc_smb_paddr = 0;
         sc->alc_rdata.alc_smb = NULL;
-        sc->alc_cdata.alc_smb_map = NULL;
         bus_dma_tag_destroy(sc->alc_cdata.alc_smb_tag);
         sc->alc_cdata.alc_smb_tag = NULL;
     }
@@ -1906 +2502 @@
 static void
 alc_setwol(struct alc_softc *sc)
 {
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        alc_setwol_816x(sc);
+    else
+        alc_setwol_813x(sc);
+}
+
+static void
+alc_setwol_813x(struct alc_softc *sc)
+{
     struct ifnet *ifp;
     uint32_t reg, pmcs;
     uint16_t pmstat;
@@ -1966 +2572 @@
         sc->alc_pmcap + PCIR_POWER_STATUS, pmstat, 2);
 }
 
+static void
+alc_setwol_816x(struct alc_softc *sc)
+{
+    struct ifnet *ifp;
+    uint32_t gphy, mac, master, pmcs, reg;
+    uint16_t pmstat;
+
+    ALC_LOCK_ASSERT(sc);
+
+    ifp = sc->alc_ifp;
+    master = CSR_READ_4(sc, ALC_MASTER_CFG);
+    master &= ~MASTER_CLK_SEL_DIS;
+    gphy = CSR_READ_4(sc, ALC_GPHY_CFG);
+    gphy &= ~(GPHY_CFG_EXT_RESET | GPHY_CFG_LED_MODE | GPHY_CFG_100AB_ENB |
+        GPHY_CFG_PHY_PLL_ON);
+    gphy |= GPHY_CFG_HIB_EN | GPHY_CFG_HIB_PULSE | GPHY_CFG_SEL_ANA_RESET;
+    if ((sc->alc_flags & ALC_FLAG_PM) == 0) {
+        CSR_WRITE_4(sc, ALC_WOL_CFG, 0);
+        gphy |= GPHY_CFG_PHY_IDDQ | GPHY_CFG_PWDOWN_HW;
+        mac = CSR_READ_4(sc, ALC_MAC_CFG);
+    } else {
+        if ((ifp->if_capenable & IFCAP_WOL) != 0) {
+            gphy |= GPHY_CFG_EXT_RESET;
+            if ((sc->alc_flags & ALC_FLAG_FASTETHER) == 0)
+                alc_setlinkspeed(sc);
+        }
+        pmcs = 0;
+        if ((ifp->if_capenable & IFCAP_WOL_MAGIC) != 0)
+            pmcs |= WOL_CFG_MAGIC | WOL_CFG_MAGIC_ENB;
+        CSR_WRITE_4(sc, ALC_WOL_CFG, pmcs);
+        mac = CSR_READ_4(sc, ALC_MAC_CFG);
+        mac &= ~(MAC_CFG_DBG | MAC_CFG_PROMISC | MAC_CFG_ALLMULTI |
+            MAC_CFG_BCAST);
+        if ((ifp->if_capenable & IFCAP_WOL_MCAST) != 0)
+            mac |= MAC_CFG_ALLMULTI | MAC_CFG_BCAST;
+        if ((ifp->if_capenable & IFCAP_WOL) != 0)
+            mac |= MAC_CFG_RX_ENB;
+        alc_miiext_writereg(sc, MII_EXT_ANEG, MII_EXT_ANEG_S3DIG10,
+            ANEG_S3DIG10_SL);
+    }
+
+    /* Enable OSC. */
+    reg = CSR_READ_4(sc, ALC_MISC);
+    reg &= ~MISC_INTNLOSC_OPEN;
+    CSR_WRITE_4(sc, ALC_MISC, reg);
+    reg |= MISC_INTNLOSC_OPEN;
+    CSR_WRITE_4(sc, ALC_MISC, reg);
+    CSR_WRITE_4(sc, ALC_MASTER_CFG, master);
+    CSR_WRITE_4(sc, ALC_MAC_CFG, mac);
+    CSR_WRITE_4(sc, ALC_GPHY_CFG, gphy);
+    reg = CSR_READ_4(sc, ALC_PDLL_TRNS1);
+    reg |= PDLL_TRNS1_D3PLLOFF_ENB;
+    CSR_WRITE_4(sc, ALC_PDLL_TRNS1, reg);
+
+    if ((sc->alc_flags & ALC_FLAG_PM) != 0) {
+        /* Request PME. */
+        pmstat = pci_read_config(sc->alc_dev,
+            sc->alc_pmcap + PCIR_POWER_STATUS, 2);
+        pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE);
+        if ((ifp->if_capenable & IFCAP_WOL) != 0)
+            pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE;
+        pci_write_config(sc->alc_dev,
+            sc->alc_pmcap + PCIR_POWER_STATUS, pmstat, 2);
+    }
+}
+
 static int
 alc_suspend(device_t dev)
 {
@@ -2036 +2708 @@
     ip_off = poff = 0;
     if ((m->m_pkthdr.csum_flags & (ALC_CSUM_FEATURES | CSUM_TSO)) != 0) {
         /*
-         * AR813x/AR815x requires offset of TCP/UDP header in its
+         * AR81[3567]x requires offset of TCP/UDP header in its
          * Tx descriptor to perform Tx checksum offloading. TSO
          * also requires TCP header offset and modification of
          * IP/TCP header. This kind of operation takes many CPU
@@ -2174 +2846 @@
         cflags |= (poff << TD_TCPHDR_OFFSET_SHIFT) &
             TD_TCPHDR_OFFSET_MASK;
         /*
-         * AR813x/AR815x requires the first buffer should
+         * AR81[3567]x requires the first buffer should
          * only hold IP/TCP header data. Payload should
          * be handled in other descriptors.
          */
@@ -2305 +2977 @@
         bus_dmamap_sync(sc->alc_cdata.alc_tx_ring_tag,
             sc->alc_cdata.alc_tx_ring_map, BUS_DMASYNC_PREWRITE);
         /* Kick. Assume we're using normal Tx priority queue. */
-        CSR_WRITE_4(sc, ALC_MBOX_TD_PROD_IDX,
-            (sc->alc_cdata.alc_tx_prod <<
-            MBOX_TD_PROD_LO_IDX_SHIFT) &
-            MBOX_TD_PROD_LO_IDX_MASK);
+        if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+            CSR_WRITE_2(sc, ALC_MBOX_TD_PRI0_PROD_IDX,
+                (uint16_t)sc->alc_cdata.alc_tx_prod);
+        else
+            CSR_WRITE_4(sc, ALC_MBOX_TD_PROD_IDX,
+                (sc->alc_cdata.alc_tx_prod <<
+                MBOX_TD_PROD_LO_IDX_SHIFT) &
+                MBOX_TD_PROD_LO_IDX_MASK);
         /* Set a timeout in case the chip goes out to lunch. */
         sc->alc_watchdog_timer = ALC_TX_TIMEOUT;
     }
@@ -2327 +3003 @@
     ifp = sc->alc_ifp;
     if ((sc->alc_flags & ALC_FLAG_LINK) == 0) {
         if_printf(sc->alc_ifp, "watchdog timeout (lost link)\n");
-        ifp->if_oerrors++;
+        if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
         ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
         alc_init_locked(sc);
         return;
     }
     if_printf(sc->alc_ifp, "watchdog timeout -- resetting\n");
-    ifp->if_oerrors++;
+    if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
     ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
     alc_init_locked(sc);
     if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
@@ -2362 +3038 @@
         else if (ifp->if_mtu != ifr->ifr_mtu) {
             ALC_LOCK(sc);
             ifp->if_mtu = ifr->ifr_mtu;
-            /* AR813x/AR815x has 13 bits MSS field. */
+            /* AR81[3567]x has 13 bits MSS field. */
             if (ifp->if_mtu > ALC_TSO_MTU &&
                 (ifp->if_capenable & IFCAP_TSO4) != 0) {
                 ifp->if_capenable &= ~IFCAP_TSO4;
@@ -2413 +3089 @@
             (ifp->if_capabilities & IFCAP_TSO4) != 0) {
             ifp->if_capenable ^= IFCAP_TSO4;
             if ((ifp->if_capenable & IFCAP_TSO4) != 0) {
-                /* AR813x/AR815x has 13 bits MSS field. */
+                /* AR81[3567]x has 13 bits MSS field. */
                 if (ifp->if_mtu > ALC_TSO_MTU) {
                     ifp->if_capenable &= ~IFCAP_TSO4;
                     ifp->if_hwassist &= ~CSUM_TSO;
@@ -2465 +3141 @@
     reg = CSR_READ_4(sc, ALC_MAC_CFG);
     reg &= ~(MAC_CFG_FULL_DUPLEX | MAC_CFG_TX_FC | MAC_CFG_RX_FC |
         MAC_CFG_SPEED_MASK);
-    if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151 ||
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0 ||
+        sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151 ||
         sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151_V2 ||
         sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B2)
         reg |= MAC_CFG_HASH_ALG_CRC32 | MAC_CFG_SPEED_MODE_SW;
@@ -2603 +3280 @@
     stat->tx_multi_colls += smb->tx_multi_colls;
     stat->tx_late_colls += smb->tx_late_colls;
     stat->tx_excess_colls += smb->tx_excess_colls;
-    stat->tx_abort += smb->tx_abort;
     stat->tx_underrun += smb->tx_underrun;
     stat->tx_desc_underrun += smb->tx_desc_underrun;
     stat->tx_lenerrs += smb->tx_lenerrs;
@@ -2612 +3288 @@
     stat->tx_mcast_bytes += smb->tx_mcast_bytes;
 
     /* Update counters in ifnet. */
-    ifp->if_opackets += smb->tx_frames;
+    if_inc_counter(ifp, IFCOUNTER_OPACKETS, smb->tx_frames);
 
-    ifp->if_collisions += smb->tx_single_colls +
+    if_inc_counter(ifp, IFCOUNTER_COLLISIONS, smb->tx_single_colls +
         smb->tx_multi_colls * 2 + smb->tx_late_colls +
-        smb->tx_abort * HDPX_CFG_RETRY_DEFAULT;
+        smb->tx_excess_colls * HDPX_CFG_RETRY_DEFAULT);
 
-    /*
-     * XXX
-     * tx_pkts_truncated counter looks suspicious. It constantly
-     * increments with no sign of Tx errors. This may indicate
-     * the counter name is not correct one so I've removed the
-     * counter in output errors.
-     */
-    ifp->if_oerrors += smb->tx_abort + smb->tx_late_colls +
-        smb->tx_underrun;
+    if_inc_counter(ifp, IFCOUNTER_OERRORS, smb->tx_late_colls +
+        smb->tx_excess_colls + smb->tx_underrun + smb->tx_pkts_truncated);
 
-    ifp->if_ipackets += smb->rx_frames;
+    if_inc_counter(ifp, IFCOUNTER_IPACKETS, smb->rx_frames);
 
-    ifp->if_ierrors += smb->rx_crcerrs + smb->rx_lenerrs +
+    if_inc_counter(ifp, IFCOUNTER_IERRORS,
+        smb->rx_crcerrs + smb->rx_lenerrs +
         smb->rx_runts + smb->rx_pkts_truncated +
         smb->rx_fifo_oflows + smb->rx_rrs_errs +
-        smb->rx_alignerrs;
+        smb->rx_alignerrs);
 
     if ((sc->alc_flags & ALC_FLAG_SMB_BUG) == 0) {
         /* Update done, clear. */
@@ -2754 +3424 @@
         bus_dmamap_sync(sc->alc_cdata.alc_cmb_tag,
             sc->alc_cdata.alc_cmb_map, BUS_DMASYNC_POSTREAD);
         prod = sc->alc_rdata.alc_cmb->cons;
-    } else
-        prod = CSR_READ_4(sc, ALC_MBOX_TD_CONS_IDX);
-    /* Assume we're using normal Tx priority queue. */
-    prod = (prod & MBOX_TD_CONS_LO_IDX_MASK) >>
-        MBOX_TD_CONS_LO_IDX_SHIFT;
+    } else {
+        if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+            prod = CSR_READ_2(sc, ALC_MBOX_TD_PRI0_CONS_IDX);
+        else {
+            prod = CSR_READ_4(sc, ALC_MBOX_TD_CONS_IDX);
+            /* Assume we're using normal Tx priority queue. */
+            prod = (prod & MBOX_TD_CONS_LO_IDX_MASK) >>
+                MBOX_TD_CONS_LO_IDX_SHIFT;
+        }
+    }
     cons = sc->alc_cdata.alc_tx_cons;
     /*
      * Go through our Tx list and free mbufs for those
@@ -2894 +3569 @@
          * it still seems that pre-fetching needs more
          * experimentation.
          */
-        CSR_WRITE_4(sc, ALC_MBOX_RD0_PROD_IDX,
-            sc->alc_cdata.alc_rx_cons);
+        if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+            CSR_WRITE_2(sc, ALC_MBOX_RD0_PROD_IDX,
+                (uint16_t)sc->alc_cdata.alc_rx_cons);
+        else
+            CSR_WRITE_4(sc, ALC_MBOX_RD0_PROD_IDX,
+                sc->alc_cdata.alc_rx_cons);
     }
 
     return (count > 0 ? 0 : EAGAIN);
@@ -2925 +3604 @@
      */
     MGETHDR(n, M_NOWAIT, MT_DATA);
     if (n == NULL) {
-        ifp->if_iqdrops++;
+        if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
         m_freem(m);
         return (NULL);
     }
@@ -2981 +3660 @@
         mp = rxd->rx_m;
         /* Add a new receive buffer to the ring. */
         if (alc_newbuf(sc, rxd) != 0) {
-            ifp->if_iqdrops++;
+            if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
             /* Reuse Rx buffers. */
             if (sc->alc_cdata.alc_rxhead != NULL)
                 m_freem(sc->alc_cdata.alc_rxhead);
@@ -3087 +3766 @@
 }
 
 static void
-alc_reset(struct alc_softc *sc)
+alc_osc_reset(struct alc_softc *sc)
 {
     uint32_t reg;
+
+    reg = CSR_READ_4(sc, ALC_MISC3);
+    reg &= ~MISC3_25M_BY_SW;
+    reg |= MISC3_25M_NOTO_INTNL;
+    CSR_WRITE_4(sc, ALC_MISC3, reg);
+
+    reg = CSR_READ_4(sc, ALC_MISC);
+    if (AR816X_REV(sc->alc_rev) >= AR816X_REV_B0) {
+        /*
+         * Restore over-current protection default value.
+         * This value could be reset by MAC reset.
+         */
+        reg &= ~MISC_PSW_OCP_MASK;
+        reg |= (MISC_PSW_OCP_DEFAULT << MISC_PSW_OCP_SHIFT);
+        reg &= ~MISC_INTNLOSC_OPEN;
+        CSR_WRITE_4(sc, ALC_MISC, reg);
+        CSR_WRITE_4(sc, ALC_MISC, reg | MISC_INTNLOSC_OPEN);
+        reg = CSR_READ_4(sc, ALC_MISC2);
+        reg &= ~MISC2_CALB_START;
+        CSR_WRITE_4(sc, ALC_MISC2, reg);
+        CSR_WRITE_4(sc, ALC_MISC2, reg | MISC2_CALB_START);
+
+    } else {
+        reg &= ~MISC_INTNLOSC_OPEN;
+        /* Disable isolate for revision A devices. */
+        if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1)
+            reg &= ~MISC_ISO_ENB;
+        CSR_WRITE_4(sc, ALC_MISC, reg | MISC_INTNLOSC_OPEN);
+        CSR_WRITE_4(sc, ALC_MISC, reg);
+    }
+
+    DELAY(20);
+}
+
+static void
+alc_reset(struct alc_softc *sc)
+{
+    uint32_t pmcfg, reg;
     int i;
 
-    reg = CSR_READ_4(sc, ALC_MASTER_CFG) & 0xFFFF;
+    pmcfg = 0;
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        /* Reset workaround. */
+        CSR_WRITE_4(sc, ALC_MBOX_RD0_PROD_IDX, 1);
+        if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1 &&
+            (sc->alc_rev & 0x01) != 0) {
+            /* Disable L0s/L1s before reset. */
+            pmcfg = CSR_READ_4(sc, ALC_PM_CFG);
+            if ((pmcfg & (PM_CFG_ASPM_L0S_ENB | PM_CFG_ASPM_L1_ENB))
+                != 0) {
+                pmcfg &= ~(PM_CFG_ASPM_L0S_ENB |
+                    PM_CFG_ASPM_L1_ENB);
+                CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
+            }
+        }
+    }
+    reg = CSR_READ_4(sc, ALC_MASTER_CFG);
     reg |= MASTER_OOB_DIS_OFF | MASTER_RESET;
     CSR_WRITE_4(sc, ALC_MASTER_CFG, reg);
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        for (i = ALC_RESET_TIMEOUT; i > 0; i--) {
+            DELAY(10);
+            if (CSR_READ_4(sc, ALC_MBOX_RD0_PROD_IDX) == 0)
+                break;
+        }
+        if (i == 0)
+            device_printf(sc->alc_dev, "MAC reset timeout!\n");
+    }
     for (i = ALC_RESET_TIMEOUT; i > 0; i--) {
         DELAY(10);
         if ((CSR_READ_4(sc, ALC_MASTER_CFG) & MASTER_RESET) == 0)
@@ -3104 +3847 @@
         device_printf(sc->alc_dev, "master reset timeout!\n");
 
     for (i = ALC_RESET_TIMEOUT; i > 0; i--) {
-        if ((reg = CSR_READ_4(sc, ALC_IDLE_STATUS)) == 0)
+        reg = CSR_READ_4(sc, ALC_IDLE_STATUS);
+        if ((reg & (IDLE_STATUS_RXMAC | IDLE_STATUS_TXMAC |
+            IDLE_STATUS_RXQ | IDLE_STATUS_TXQ)) == 0)
             break;
         DELAY(10);
     }
-
     if (i == 0)
         device_printf(sc->alc_dev, "reset timeout(0x%08x)!\n", reg);
+
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1 &&
+            (sc->alc_rev & 0x01) != 0) {
+            reg = CSR_READ_4(sc, ALC_MASTER_CFG);
+            reg |= MASTER_CLK_SEL_DIS;
+            CSR_WRITE_4(sc, ALC_MASTER_CFG, reg);
+            /* Restore L0s/L1s config. */
+            if ((pmcfg & (PM_CFG_ASPM_L0S_ENB | PM_CFG_ASPM_L1_ENB))
+                != 0)
+                CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
+        }
+
+        alc_osc_reset(sc);
+        reg = CSR_READ_4(sc, ALC_MISC3);
+        reg &= ~MISC3_25M_BY_SW;
+        reg |= MISC3_25M_NOTO_INTNL;
+        CSR_WRITE_4(sc, ALC_MISC3, reg);
+        reg = CSR_READ_4(sc, ALC_MISC);
+        reg &= ~MISC_INTNLOSC_OPEN;
+        if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1)
+            reg &= ~MISC_ISO_ENB;
+        CSR_WRITE_4(sc, ALC_MISC, reg);
+        DELAY(20);
+    }
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0 ||
+        sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B ||
+        sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151_V2)
+        CSR_WRITE_4(sc, ALC_SERDES_LOCK,
+            CSR_READ_4(sc, ALC_SERDES_LOCK) | SERDES_MAC_CLK_SLOWDOWN |
+            SERDES_PHY_CLK_SLOWDOWN);
 }
 
 static void
@@ -3161 +3936 @@
     alc_init_smb(sc);
 
     /* Enable all clocks. */
-    CSR_WRITE_4(sc, ALC_CLK_GATING_CFG, 0);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        CSR_WRITE_4(sc, ALC_CLK_GATING_CFG, CLK_GATING_DMAW_ENB |
+            CLK_GATING_DMAR_ENB | CLK_GATING_TXQ_ENB |
+            CLK_GATING_RXQ_ENB | CLK_GATING_TXMAC_ENB |
+            CLK_GATING_RXMAC_ENB);
+        if (AR816X_REV(sc->alc_rev) >= AR816X_REV_B0)
+            CSR_WRITE_4(sc, ALC_IDLE_DECISN_TIMER,
+                IDLE_DECISN_TIMER_DEFAULT_1MS);
+    } else
+        CSR_WRITE_4(sc, ALC_CLK_GATING_CFG, 0);
 
     /* Reprogram the station address. */
     bcopy(IF_LLADDR(ifp), eaddr, ETHER_ADDR_LEN);
@@ -3187 +3971 @@
     paddr = sc->alc_rdata.alc_rx_ring_paddr;
     CSR_WRITE_4(sc, ALC_RX_BASE_ADDR_HI, ALC_ADDR_HI(paddr));
     CSR_WRITE_4(sc, ALC_RD0_HEAD_ADDR_LO, ALC_ADDR_LO(paddr));
-    /* We use one Rx ring. */
-    CSR_WRITE_4(sc, ALC_RD1_HEAD_ADDR_LO, 0);
-    CSR_WRITE_4(sc, ALC_RD2_HEAD_ADDR_LO, 0);
-    CSR_WRITE_4(sc, ALC_RD3_HEAD_ADDR_LO, 0);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        /* We use one Rx ring. */
+        CSR_WRITE_4(sc, ALC_RD1_HEAD_ADDR_LO, 0);
+        CSR_WRITE_4(sc, ALC_RD2_HEAD_ADDR_LO, 0);
+        CSR_WRITE_4(sc, ALC_RD3_HEAD_ADDR_LO, 0);
+    }
     /* Set Rx descriptor counter. */
     CSR_WRITE_4(sc, ALC_RD_RING_CNT,
         (ALC_RX_RING_CNT << RD_RING_CNT_SHIFT) & RD_RING_CNT_MASK);
@@ -3215 +4001 @@
     paddr = sc->alc_rdata.alc_rr_ring_paddr;
     /* Set Rx return descriptor base addresses. */
     CSR_WRITE_4(sc, ALC_RRD0_HEAD_ADDR_LO, ALC_ADDR_LO(paddr));
-    /* We use one Rx return ring. */
-    CSR_WRITE_4(sc, ALC_RRD1_HEAD_ADDR_LO, 0);
-    CSR_WRITE_4(sc, ALC_RRD2_HEAD_ADDR_LO, 0);
-    CSR_WRITE_4(sc, ALC_RRD3_HEAD_ADDR_LO, 0);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        /* We use one Rx return ring. */
+        CSR_WRITE_4(sc, ALC_RRD1_HEAD_ADDR_LO, 0);
+        CSR_WRITE_4(sc, ALC_RRD2_HEAD_ADDR_LO, 0);
+        CSR_WRITE_4(sc, ALC_RRD3_HEAD_ADDR_LO, 0);
+    }
     /* Set Rx return descriptor counter. */
     CSR_WRITE_4(sc, ALC_RRD_RING_CNT,
         (ALC_RR_RING_CNT << RRD_RING_CNT_SHIFT) & RRD_RING_CNT_MASK);
@@ -3245 +4033 @@
 
     /* Configure interrupt moderation timer. */
     reg = ALC_USECS(sc->alc_int_rx_mod) << IM_TIMER_RX_SHIFT;
-    reg |= ALC_USECS(sc->alc_int_tx_mod) << IM_TIMER_TX_SHIFT;
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0)
+        reg |= ALC_USECS(sc->alc_int_tx_mod) << IM_TIMER_TX_SHIFT;
     CSR_WRITE_4(sc, ALC_IM_TIMER, reg);
     /*
      * We don't want to automatic interrupt clear as task queue
      * for the interrupt should know interrupt status.
      */
-    reg = MASTER_SA_TIMER_ENB;
+    reg = CSR_READ_4(sc, ALC_MASTER_CFG);
+    reg &= ~(MASTER_IM_RX_TIMER_ENB | MASTER_IM_TX_TIMER_ENB);
+    reg |= MASTER_SA_TIMER_ENB;
     if (ALC_USECS(sc->alc_int_rx_mod) != 0)
         reg |= MASTER_IM_RX_TIMER_ENB;
-    if (ALC_USECS(sc->alc_int_tx_mod) != 0)
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0 &&
+        ALC_USECS(sc->alc_int_tx_mod) != 0)
         reg |= MASTER_IM_TX_TIMER_ENB;
     CSR_WRITE_4(sc, ALC_MASTER_CFG, reg);
     /*
@@ -3263 +4055 @@
      */
     CSR_WRITE_4(sc, ALC_INTR_RETRIG_TIMER, ALC_USECS(0));
     /* Configure CMB. */
-    if ((sc->alc_flags & ALC_FLAG_CMB_BUG) == 0) {
-        CSR_WRITE_4(sc, ALC_CMB_TD_THRESH, 4);
-        CSR_WRITE_4(sc, ALC_CMB_TX_TIMER, ALC_USECS(5000));
-    } else
-        CSR_WRITE_4(sc, ALC_CMB_TX_TIMER, ALC_USECS(0));
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        CSR_WRITE_4(sc, ALC_CMB_TD_THRESH, ALC_TX_RING_CNT / 3);
+        CSR_WRITE_4(sc, ALC_CMB_TX_TIMER,
+            ALC_USECS(sc->alc_int_tx_mod));
+    } else {
+        if ((sc->alc_flags & ALC_FLAG_CMB_BUG) == 0) {
+            CSR_WRITE_4(sc, ALC_CMB_TD_THRESH, 4);
+            CSR_WRITE_4(sc, ALC_CMB_TX_TIMER, ALC_USECS(5000));
+        } else
+            CSR_WRITE_4(sc, ALC_CMB_TX_TIMER, ALC_USECS(0));
+    }
     /*
      * Hardware can be configured to issue SMB interrupt based
      * on programmed interval. Since there is a callout that is
@@ -3294 +4092 @@
      */
     CSR_WRITE_4(sc, ALC_FRAME_SIZE, sc->alc_ident->max_framelen);
 
-    /* Disable header split(?) */
-    CSR_WRITE_4(sc, ALC_HDS_CFG, 0);
-
-    /* Configure IPG/IFG parameters. */
-    CSR_WRITE_4(sc, ALC_IPG_IFG_CFG,
-        ((IPG_IFG_IPGT_DEFAULT << IPG_IFG_IPGT_SHIFT) & IPG_IFG_IPGT_MASK) |
-        ((IPG_IFG_MIFG_DEFAULT << IPG_IFG_MIFG_SHIFT) & IPG_IFG_MIFG_MASK) |
-        ((IPG_IFG_IPG1_DEFAULT << IPG_IFG_IPG1_SHIFT) & IPG_IFG_IPG1_MASK) |
-        ((IPG_IFG_IPG2_DEFAULT << IPG_IFG_IPG2_SHIFT) & IPG_IFG_IPG2_MASK));
-    /* Set parameters for half-duplex media. */
-    CSR_WRITE_4(sc, ALC_HDPX_CFG,
-        ((HDPX_CFG_LCOL_DEFAULT << HDPX_CFG_LCOL_SHIFT) &
-        HDPX_CFG_LCOL_MASK) |
-        ((HDPX_CFG_RETRY_DEFAULT << HDPX_CFG_RETRY_SHIFT) &
-        HDPX_CFG_RETRY_MASK) | HDPX_CFG_EXC_DEF_EN |
-        ((HDPX_CFG_ABEBT_DEFAULT << HDPX_CFG_ABEBT_SHIFT) &
-        HDPX_CFG_ABEBT_MASK) |
-        ((HDPX_CFG_JAMIPG_DEFAULT << HDPX_CFG_JAMIPG_SHIFT) &
-        HDPX_CFG_JAMIPG_MASK));
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        /* Disable header split(?) */
+        CSR_WRITE_4(sc, ALC_HDS_CFG, 0);
+
+        /* Configure IPG/IFG parameters. */
+        CSR_WRITE_4(sc, ALC_IPG_IFG_CFG,
+            ((IPG_IFG_IPGT_DEFAULT << IPG_IFG_IPGT_SHIFT) &
+            IPG_IFG_IPGT_MASK) |
+            ((IPG_IFG_MIFG_DEFAULT << IPG_IFG_MIFG_SHIFT) &
+            IPG_IFG_MIFG_MASK) |
+            ((IPG_IFG_IPG1_DEFAULT << IPG_IFG_IPG1_SHIFT) &
+            IPG_IFG_IPG1_MASK) |
+            ((IPG_IFG_IPG2_DEFAULT << IPG_IFG_IPG2_SHIFT) &
+            IPG_IFG_IPG2_MASK));
+        /* Set parameters for half-duplex media. */
+        CSR_WRITE_4(sc, ALC_HDPX_CFG,
+            ((HDPX_CFG_LCOL_DEFAULT << HDPX_CFG_LCOL_SHIFT) &
+            HDPX_CFG_LCOL_MASK) |
+            ((HDPX_CFG_RETRY_DEFAULT << HDPX_CFG_RETRY_SHIFT) &
+            HDPX_CFG_RETRY_MASK) | HDPX_CFG_EXC_DEF_EN |
+            ((HDPX_CFG_ABEBT_DEFAULT << HDPX_CFG_ABEBT_SHIFT) &
+            HDPX_CFG_ABEBT_MASK) |
+            ((HDPX_CFG_JAMIPG_DEFAULT << HDPX_CFG_JAMIPG_SHIFT) &
+            HDPX_CFG_JAMIPG_MASK));
+    }
+
     /*
      * Set TSO/checksum offload threshold. For frames that is
      * larger than this threshold, hardware wouldn't do
      * TSO/checksum offloading.
      */
-    CSR_WRITE_4(sc, ALC_TSO_OFFLOAD_THRESH,
-        (sc->alc_ident->max_framelen >> TSO_OFFLOAD_THRESH_UNIT_SHIFT) &
-        TSO_OFFLOAD_THRESH_MASK);
+    reg = (sc->alc_ident->max_framelen >> TSO_OFFLOAD_THRESH_UNIT_SHIFT) &
+        TSO_OFFLOAD_THRESH_MASK;
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0)
+        reg |= TSO_OFFLOAD_ERRLGPKT_DROP_ENB;
+    CSR_WRITE_4(sc, ALC_TSO_OFFLOAD_THRESH, reg);
     /* Configure TxQ. */
     reg = (alc_dma_burst[sc->alc_dma_rd_burst] <<
         TXQ_CFG_TX_FIFO_BURST_SHIFT) & TXQ_CFG_TX_FIFO_BURST_MASK;
@@ -3329 +4136 @@
         reg >>= 1;
     reg |= (TXQ_CFG_TD_BURST_DEFAULT << TXQ_CFG_TD_BURST_SHIFT) &
         TXQ_CFG_TD_BURST_MASK;
+    reg |= TXQ_CFG_IP_OPTION_ENB | TXQ_CFG_8023_ENB;
     CSR_WRITE_4(sc, ALC_TXQ_CFG, reg | TXQ_CFG_ENHANCED_MODE);
-
-    /* Configure Rx free descriptor pre-fetching. */
-    CSR_WRITE_4(sc, ALC_RX_RD_FREE_THRESH,
-        ((RX_RD_FREE_THRESH_HI_DEFAULT << RX_RD_FREE_THRESH_HI_SHIFT) &
-        RX_RD_FREE_THRESH_HI_MASK) |
-        ((RX_RD_FREE_THRESH_LO_DEFAULT << RX_RD_FREE_THRESH_LO_SHIFT) &
-        RX_RD_FREE_THRESH_LO_MASK));
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        reg = (TXQ_CFG_TD_BURST_DEFAULT << HQTD_CFG_Q1_BURST_SHIFT |
+            TXQ_CFG_TD_BURST_DEFAULT << HQTD_CFG_Q2_BURST_SHIFT |
+            TXQ_CFG_TD_BURST_DEFAULT << HQTD_CFG_Q3_BURST_SHIFT |
+            HQTD_CFG_BURST_ENB);
+        CSR_WRITE_4(sc, ALC_HQTD_CFG, reg);
+        reg = WRR_PRI_RESTRICT_NONE;
+        reg |= (WRR_PRI_DEFAULT << WRR_PRI0_SHIFT |
+            WRR_PRI_DEFAULT << WRR_PRI1_SHIFT |
+            WRR_PRI_DEFAULT << WRR_PRI2_SHIFT |
+            WRR_PRI_DEFAULT << WRR_PRI3_SHIFT);
+        CSR_WRITE_4(sc, ALC_WRR, reg);
+    } else {
+        /* Configure Rx free descriptor pre-fetching. */
+        CSR_WRITE_4(sc, ALC_RX_RD_FREE_THRESH,
+            ((RX_RD_FREE_THRESH_HI_DEFAULT <<
+            RX_RD_FREE_THRESH_HI_SHIFT) & RX_RD_FREE_THRESH_HI_MASK) |
+            ((RX_RD_FREE_THRESH_LO_DEFAULT <<
+            RX_RD_FREE_THRESH_LO_SHIFT) & RX_RD_FREE_THRESH_LO_MASK));
+    }
 
     /*
      * Configure flow control parameters.
      * XON  : 80% of Rx FIFO
      * XOFF : 30% of Rx FIFO
      */
-    if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8131 ||
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        reg = CSR_READ_4(sc, ALC_SRAM_RX_FIFO_LEN);
+        reg &= SRAM_RX_FIFO_LEN_MASK;
+        reg *= 8;
+        if (reg > 8 * 1024)
+            reg -= RX_FIFO_PAUSE_816X_RSVD;
+        else
+            reg -= RX_BUF_SIZE_MAX;
+        reg /= 8;
+        CSR_WRITE_4(sc, ALC_RX_FIFO_PAUSE_THRESH,
+            ((reg << RX_FIFO_PAUSE_THRESH_LO_SHIFT) &
+            RX_FIFO_PAUSE_THRESH_LO_MASK) |
+            (((RX_FIFO_PAUSE_816X_RSVD / 8) <<
+            RX_FIFO_PAUSE_THRESH_HI_SHIFT) &
+            RX_FIFO_PAUSE_THRESH_HI_MASK));
+    } else if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8131 ||
         sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8132) {
         reg = CSR_READ_4(sc, ALC_SRAM_RX_FIFO_LEN);
         rxf_hi = (reg * 8) / 10;
@@ -3355 +4191 @@
              RX_FIFO_PAUSE_THRESH_HI_MASK));
     }
 
-    if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B ||
-        sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151_V2)
-        CSR_WRITE_4(sc, ALC_SERDES_LOCK,
-            CSR_READ_4(sc, ALC_SERDES_LOCK) | SERDES_MAC_CLK_SLOWDOWN |
-            SERDES_PHY_CLK_SLOWDOWN);
-
-    /* Disable RSS until I understand L1C/L2C's RSS logic. */
-    CSR_WRITE_4(sc, ALC_RSS_IDT_TABLE0, 0);
-    CSR_WRITE_4(sc, ALC_RSS_CPU, 0);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        /* Disable RSS until I understand L1C/L2C's RSS logic. */
+        CSR_WRITE_4(sc, ALC_RSS_IDT_TABLE0, 0);
+        CSR_WRITE_4(sc, ALC_RSS_CPU, 0);
+    }
 
     /* Configure RxQ. */
     reg = (RXQ_CFG_RD_BURST_DEFAULT << RXQ_CFG_RD_BURST_SHIFT) &
         RXQ_CFG_RD_BURST_MASK;
     reg |= RXQ_CFG_RSS_MODE_DIS;
-    if ((sc->alc_flags & ALC_FLAG_ASPM_MON) != 0)
-        reg |= RXQ_CFG_ASPM_THROUGHPUT_LIMIT_1M;
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        reg |= (RXQ_CFG_816X_IDT_TBL_SIZE_DEFAULT <<
+            RXQ_CFG_816X_IDT_TBL_SIZE_SHIFT) &
+            RXQ_CFG_816X_IDT_TBL_SIZE_MASK;
+        if ((sc->alc_flags & ALC_FLAG_FASTETHER) == 0)
+            reg |= RXQ_CFG_ASPM_THROUGHPUT_LIMIT_100M;
+    } else {
+        if ((sc->alc_flags & ALC_FLAG_FASTETHER) == 0 &&
+            sc->alc_ident->deviceid != DEVICEID_ATHEROS_AR8151_V2)
+            reg |= RXQ_CFG_ASPM_THROUGHPUT_LIMIT_100M;
+    }
     CSR_WRITE_4(sc, ALC_RXQ_CFG, reg);
 
     /* Configure DMA parameters. */
@@ -3390 +4231 @@
         DMA_CFG_RD_DELAY_CNT_MASK;
     reg |= (DMA_CFG_WR_DELAY_CNT_DEFAULT << DMA_CFG_WR_DELAY_CNT_SHIFT) &
         DMA_CFG_WR_DELAY_CNT_MASK;
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
+        switch (AR816X_REV(sc->alc_rev)) {
+        case AR816X_REV_A0:
+        case AR816X_REV_A1:
+            reg |= DMA_CFG_RD_CHNL_SEL_2;
+            break;
+        case AR816X_REV_B0:
+            /* FALLTHROUGH */
+        default:
+            reg |= DMA_CFG_RD_CHNL_SEL_4;
+            break;
+        }
+    }
     CSR_WRITE_4(sc, ALC_DMA_CFG, reg);
 
     /*
@@ -3408 +4262 @@
     reg = MAC_CFG_TX_CRC_ENB | MAC_CFG_TX_AUTO_PAD | MAC_CFG_FULL_DUPLEX |
         ((MAC_CFG_PREAMBLE_DEFAULT << MAC_CFG_PREAMBLE_SHIFT) &
         MAC_CFG_PREAMBLE_MASK);
-    if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151 ||
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0 ||
+        sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151 ||
         sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151_V2 ||
         sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B2)
         reg |= MAC_CFG_HASH_ALG_CRC32 | MAC_CFG_SPEED_MODE_SW;
@@ -3427 +4282 @@
     CSR_WRITE_4(sc, ALC_INTR_STATUS, 0xFFFFFFFF);
     CSR_WRITE_4(sc, ALC_INTR_STATUS, 0);
 
+    ifp->if_drv_flags |= IFF_DRV_RUNNING;
+    ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+
     sc->alc_flags &= ~ALC_FLAG_LINK;
     /* Switch to the current media. */
-    mii_mediachg(mii);
+    alc_mediachange_locked(sc);
 
     callout_reset(&sc->alc_tick_ch, hz, alc_tick, sc);
-
-    ifp->if_drv_flags |= IFF_DRV_RUNNING;
-    ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 }
 
 static void
@@ -3459 +4314 @@
     /* Disable interrupts. */
     CSR_WRITE_4(sc, ALC_INTR_MASK, 0);
     CSR_WRITE_4(sc, ALC_INTR_STATUS, 0xFFFFFFFF);
-    alc_stop_queue(sc);
     /* Disable DMA. */
     reg = CSR_READ_4(sc, ALC_DMA_CFG);
     reg &= ~(DMA_CFG_CMB_ENB | DMA_CFG_SMB_ENB);
@@ -3470 +4324 @@
     alc_stop_mac(sc);
     /* Disable interrupts which might be touched in taskq handler. */
     CSR_WRITE_4(sc, ALC_INTR_STATUS, 0xFFFFFFFF);
-
+    /* Disable L0s/L1s */
+    alc_aspm(sc, 0, IFM_UNKNOWN);
     /* Reclaim Rx buffers that have been processed. */
     if (sc->alc_cdata.alc_rxhead != NULL)
         m_freem(sc->alc_cdata.alc_rxhead);
@@ -3508 +4363 @@
     uint32_t reg;
     int i;
 
-    ALC_LOCK_ASSERT(sc);
-
+    alc_stop_queue(sc);
     /* Disable Rx/Tx MAC. */
     reg = CSR_READ_4(sc, ALC_MAC_CFG);
     if ((reg & (MAC_CFG_TX_ENB | MAC_CFG_RX_ENB)) != 0) {
@@ -3518 +4372 @@
     }
     for (i = ALC_TIMEOUT; i > 0; i--) {
         reg = CSR_READ_4(sc, ALC_IDLE_STATUS);
-        if (reg == 0)
+        if ((reg & (IDLE_STATUS_RXMAC | IDLE_STATUS_TXMAC)) == 0)
             break;
         DELAY(10);
     }
@@ -3543 +4397 @@
 
     /* Enable RxQ. */
     cfg = CSR_READ_4(sc, ALC_RXQ_CFG);
-    cfg &= ~RXQ_CFG_ENB;
-    cfg |= qcfg[1];
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        cfg &= ~RXQ_CFG_ENB;
+        cfg |= qcfg[1];
+    } else
+        cfg |= RXQ_CFG_QUEUE0_ENB;
     CSR_WRITE_4(sc, ALC_RXQ_CFG, cfg);
     /* Enable TxQ. */
     cfg = CSR_READ_4(sc, ALC_TXQ_CFG);
@@ -3558 +4415 @@
     uint32_t reg;
     int i;
 
-    ALC_LOCK_ASSERT(sc);
-
     /* Disable RxQ. */
     reg = CSR_READ_4(sc, ALC_RXQ_CFG);
-    if ((reg & RXQ_CFG_ENB) != 0) {
-        reg &= ~RXQ_CFG_ENB;
-        CSR_WRITE_4(sc, ALC_RXQ_CFG, reg);
+    if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
+        if ((reg & RXQ_CFG_ENB) != 0) {
+            reg &= ~RXQ_CFG_ENB;
+            CSR_WRITE_4(sc, ALC_RXQ_CFG, reg);
+        }
+    } else {
+        if ((reg & RXQ_CFG_QUEUE0_ENB) != 0) {
+            reg &= ~RXQ_CFG_QUEUE0_ENB;
+            CSR_WRITE_4(sc, ALC_RXQ_CFG, reg);
+        }
     }
     /* Disable TxQ. */
     reg = CSR_READ_4(sc, ALC_TXQ_CFG);
@@ -3572 +4434 @@
         reg &= ~TXQ_CFG_ENB;
         CSR_WRITE_4(sc, ALC_TXQ_CFG, reg);
     }
+    DELAY(40);
     for (i = ALC_TIMEOUT; i > 0; i--) {
         reg = CSR_READ_4(sc, ALC_IDLE_STATUS);
         if ((reg & (IDLE_STATUS_RXQ | IDLE_STATUS_TXQ)) == 0)

src/add-ons/kernel/drivers/network/atheros813x/dev/alc/if_alcreg.h

@@ -44 +44 @@
 #define DEVICEID_ATHEROS_AR8151_V2  0x1083  /* L1D V2.0 */
 #define DEVICEID_ATHEROS_AR8152_B   0x2060  /* L2C V1.1 */
 #define DEVICEID_ATHEROS_AR8152_B2  0x2062  /* L2C V2.0 */
+#define DEVICEID_ATHEROS_AR8161     0x1091
+#define DEVICEID_ATHEROS_E2200      0xE091
+#define DEVICEID_ATHEROS_E2400      0xE0A1
+#define DEVICEID_ATHEROS_E2500      0xE0B1
+#define DEVICEID_ATHEROS_AR8162     0x1090
+#define DEVICEID_ATHEROS_AR8171     0x10A1
+#define DEVICEID_ATHEROS_AR8172     0x10A0
 
 #define ATHEROS_AR8152_B_V10        0xC0
 #define ATHEROS_AR8152_B_V11        0xC1
 
+/*
+ * Atheros AR816x/AR817x revisions
+ */
+#define AR816X_REV_A0           0
+#define AR816X_REV_A1           1
+#define AR816X_REV_B0           2
+#define AR816X_REV_C0           3
+
+#define AR816X_REV_SHIFT        3
+#define AR816X_REV(x)           ((x) >> AR816X_REV_SHIFT)
+
 /* 0x0000 - 0x02FF : PCIe configuration space */
 
 #define ALC_PEX_UNC_ERR_SEV     0x10C
@@ -63 +81 @@
 #define PEX_UNC_ERR_SEV_ECRC        0x00080000
 #define PEX_UNC_ERR_SEV_UR      0x00100000
 
+#define ALC_EEPROM_LD           0x204   /* AR816x */
+#define EEPROM_LD_START         0x00000001
+#define EEPROM_LD_IDLE          0x00000010
+#define EEPROM_LD_DONE          0x00000000
+#define EEPROM_LD_PROGRESS      0x00000020
+#define EEPROM_LD_EXIST         0x00000100
+#define EEPROM_LD_EEPROM_EXIST      0x00000200
+#define EEPROM_LD_FLASH_EXIST       0x00000400
+#define EEPROM_LD_FLASH_END_ADDR_MASK   0x03FF0000
+#define EEPROM_LD_FLASH_END_ADDR_SHIFT  16
+
 #define ALC_TWSI_CFG            0x218
 #define TWSI_CFG_SW_LD_START        0x00000800
 #define TWSI_CFG_HW_LD_START        0x00001000
 #define TWSI_CFG_LD_EXIST       0x00400000
 
+#define ALC_SLD             0x218   /* AR816x */
+#define SLD_START           0x00000800
+#define SLD_PROGRESS            0x00001000
+#define SLD_IDLE            0x00002000
+#define SLD_SLVADDR_MASK        0x007F0000
+#define SLD_EXIST           0x00800000
+#define SLD_FREQ_MASK           0x03000000
+#define SLD_FREQ_100K           0x00000000
+#define SLD_FREQ_200K           0x01000000
+#define SLD_FREQ_300K           0x02000000
+#define SLD_FREQ_400K           0x03000000
+
 #define ALC_PCIE_PHYMISC        0x1000
 #define PCIE_PHYMISC_FORCE_RCV_DET  0x00000004
 
@@ -77 +118 @@
 #define PCIE_PHYMISC2_SERDES_CDR_SHIFT  16
 #define PCIE_PHYMISC2_SERDES_TH_SHIFT   18
 
+#define ALC_PDLL_TRNS1          0x1104
+#define PDLL_TRNS1_D3PLLOFF_ENB     0x00000800
+
 #define ALC_TWSI_DEBUG          0x1108
 #define TWSI_DEBUG_DEV_EXIST        0x20000000
 
@@ -103 +147 @@
 #define PM_CFG_SERDES_PD_EX_L1      0x00000040
 #define PM_CFG_SERDES_BUDS_RX_L1_ENB    0x00000080
 #define PM_CFG_L0S_ENTRY_TIMER_MASK 0x00000F00
+#define PM_CFG_RX_L1_AFTER_L0S      0x00000800
 #define PM_CFG_ASPM_L0S_ENB     0x00001000
 #define PM_CFG_CLK_SWH_L1       0x00002000
 #define PM_CFG_CLK_PWM_VER1_1       0x00004000
 #define PM_CFG_PCIE_RECV        0x00008000
 #define PM_CFG_L1_ENTRY_TIMER_MASK  0x000F0000
+#define PM_CFG_L1_ENTRY_TIMER_816X_MASK 0x00070000
+#define PM_CFG_TX_L1_AFTER_L0S      0x00080000
 #define PM_CFG_PM_REQ_TIMER_MASK    0x00F00000
 #define PM_CFG_LCKDET_TIMER_MASK    0x0F000000
 #define PM_CFG_EN_BUFS_RX_L0S       0x10000000
@@ -121 +168 @@
 
 #define PM_CFG_L0S_ENTRY_TIMER_DEFAULT  6
 #define PM_CFG_L1_ENTRY_TIMER_DEFAULT   1
+#define PM_CFG_L1_ENTRY_TIMER_816X_DEFAULT  4
 #define PM_CFG_LCKDET_TIMER_DEFAULT 12
 #define PM_CFG_PM_REQ_TIMER_DEFAULT 12
+#define PM_CFG_PM_REQ_TIMER_816X_DEFAULT    15
 
 #define ALC_LTSSM_ID_CFG        0x12FC
 #define LTSSM_ID_WRO_ENB        0x00001000
@@ -131 +180 @@
 #define MASTER_RESET            0x00000001
 #define MASTER_TEST_MODE_MASK       0x0000000C
 #define MASTER_BERT_START       0x00000010
+#define MASTER_WAKEN_25M        0x00000020
 #define MASTER_OOB_DIS_OFF      0x00000040
 #define MASTER_SA_TIMER_ENB     0x00000080
 #define MASTER_MTIMER_ENB       0x00000100
@@ -171 +221 @@
  */
 #define ALC_IM_TX_TIMER_DEFAULT     1000    /* 1ms */
 
-#define ALC_GPHY_CFG            0x140C  /* 16bits */
+#define ALC_GPHY_CFG            0x140C  /* 16 bits, 32 bits on AR816x */
 #define GPHY_CFG_EXT_RESET      0x0001
 #define GPHY_CFG_RTL_MODE       0x0002
 #define GPHY_CFG_LED_MODE       0x0004
@@ -188 +238 @@
 #define GPHY_CFG_PHY_PLL_ON     0x2000
 #define GPHY_CFG_PWDOWN_HW      0x4000
 #define GPHY_CFG_PHY_PLL_BYPASS     0x8000
+#define GPHY_CFG_100AB_ENB      0x00020000
 
 #define ALC_IDLE_STATUS         0x1410
 #define IDLE_STATUS_RXMAC       0x00000001
@@ -212 +263 @@
 #define MDIO_CLK_25_10          0x04000000
 #define MDIO_CLK_25_14          0x05000000
 #define MDIO_CLK_25_20          0x06000000
-#define MDIO_CLK_25_28          0x07000000
+#define MDIO_CLK_25_128         0x07000000
 #define MDIO_OP_BUSY            0x08000000
 #define MDIO_AP_ENB         0x10000000
+#define MDIO_MODE_EXT           0x40000000
 #define MDIO_DATA_SHIFT         0
 #define MDIO_REG_ADDR_SHIFT     16
 
@@ -248 +300 @@
 #define SERDES_MAC_CLK_SLOWDOWN     0x00020000
 #define SERDES_PHY_CLK_SLOWDOWN     0x00040000
 
+#define ALC_LPI_CTL         0x1440
+#define LPI_CTL_ENB         0x00000001
+
+#define ALC_EXT_MDIO            0x1448
+#define EXT_MDIO_REG_MASK       0x0000FFFF
+#define EXT_MDIO_DEVADDR_MASK       0x001F0000
+#define EXT_MDIO_REG_SHIFT      0
+#define EXT_MDIO_DEVADDR_SHIFT      16
+
+#define EXT_MDIO_REG(x)     \
+    (((x) << EXT_MDIO_REG_SHIFT) & EXT_MDIO_REG_MASK)
+#define EXT_MDIO_DEVADDR(x) \
+    (((x) << EXT_MDIO_DEVADDR_SHIFT) & EXT_MDIO_DEVADDR_MASK)
+
+#define ALC_IDLE_DECISN_TIMER       0x1474
+#define IDLE_DECISN_TIMER_DEFAULT_1MS   0x400
+
 #define ALC_MAC_CFG         0x1480
 #define MAC_CFG_TX_ENB          0x00000001
 #define MAC_CFG_RX_ENB          0x00000002
@@ -278 +347 @@
 #define MAC_CFG_SINGLE_PAUSE_ENB    0x10000000
 #define MAC_CFG_HASH_ALG_CRC32      0x20000000
 #define MAC_CFG_SPEED_MODE_SW       0x40000000
+#define MAC_CFG_FAST_PAUSE      0x80000000
 #define MAC_CFG_PREAMBLE_SHIFT      10
 #define MAC_CFG_PREAMBLE_DEFAULT    7
 
@@ -378 +448 @@
 
 #define ALC_RSS_IDT_TABLE0      0x14E0
 
+#define ALC_TD_PRI2_HEAD_ADDR_LO    0x14E0  /* AR816x */
+
 #define ALC_RSS_IDT_TABLE1      0x14E4
 
+#define ALC_TD_PRI3_HEAD_ADDR_LO    0x14E4  /* AR816x */
+
 #define ALC_RSS_IDT_TABLE2      0x14E8
 
 #define ALC_RSS_IDT_TABLE3      0x14EC
@@ -422 +496 @@
 #define ALC_SRAM_RX_FIFO_ADDR       0x1520
 
 #define ALC_SRAM_RX_FIFO_LEN        0x1524
+#define SRAM_RX_FIFO_LEN_MASK       0x00000FFF
+#define SRAM_RX_FIFO_LEN_SHIFT      0
 
 #define ALC_SRAM_TX_FIFO_ADDR       0x1528
 
@@ -478 +554 @@
 
 #define ALC_TDH_HEAD_ADDR_LO        0x157C
 
+#define ALC_TD_PRI1_HEAD_ADDR_LO    0x157C  /* AR816x */
+
 #define ALC_TDL_HEAD_ADDR_LO        0x1580
 
+#define ALC_TD_PRI0_HEAD_ADDR_LO    0x1580  /* AR816x */
+
 #define ALC_TD_RING_CNT         0x1584
 #define TD_RING_CNT_MASK        0x0000FFFF
 #define TD_RING_CNT_SHIFT       0
@@ -499 +579 @@
 
 #define ALC_TSO_OFFLOAD_THRESH      0x1594  /* 8 bytes unit */
 #define TSO_OFFLOAD_THRESH_MASK     0x000007FF
+#define TSO_OFFLOAD_ERRLGPKT_DROP_ENB   0x00000800
 #define TSO_OFFLOAD_THRESH_SHIFT    0
 #define TSO_OFFLOAD_THRESH_UNIT     8
 #define TSO_OFFLOAD_THRESH_UNIT_SHIFT   3
@@ -546 +627 @@
     (RXQ_CFG_QUEUE0_ENB | RXQ_CFG_QUEUE1_ENB |  \
      RXQ_CFG_QUEUE2_ENB | RXQ_CFG_QUEUE3_ENB)
 
+/* AR816x specific bits */
+#define RXQ_CFG_816X_RSS_HASH_IPV4  0x00000004
+#define RXQ_CFG_816X_RSS_HASH_IPV4_TCP  0x00000008
+#define RXQ_CFG_816X_RSS_HASH_IPV6  0x00000010
+#define RXQ_CFG_816X_RSS_HASH_IPV6_TCP  0x00000020
+#define RXQ_CFG_816X_RSS_HASH_MASK  0x0000003C
+#define RXQ_CFG_816X_IPV6_PARSE_ENB 0x00000080
+#define RXQ_CFG_816X_IDT_TBL_SIZE_MASK  0x0001FF00
+#define RXQ_CFG_816X_IDT_TBL_SIZE_SHIFT 8
+#define RXQ_CFG_816X_IDT_TBL_SIZE_DEFAULT   0x100
+
 #define ALC_RX_RD_FREE_THRESH       0x15A4  /* 8 bytes unit. */
 #define RX_RD_FREE_THRESH_HI_MASK   0x0000003F
 #define RX_RD_FREE_THRESH_LO_MASK   0x00000FC0
@@ -559 +651 @@
 #define RX_FIFO_PAUSE_THRESH_HI_MASK    0x0FFF0000
 #define RX_FIFO_PAUSE_THRESH_LO_SHIFT   0
 #define RX_FIFO_PAUSE_THRESH_HI_SHIFT   16
+/*
+ * Size = tx-packet(1522) + IPG(12) + SOF(8) + 64(Pause) + IPG(12) + SOF(8) +
+ *    rx-packet(1522) + delay-of-link(64)
+ *  = 3212.
+ */
+#define RX_FIFO_PAUSE_816X_RSVD     3212
 
 #define ALC_RD_DMA_CFG          0x15AC
 #define RD_DMA_CFG_THRESH_MASK      0x00000FFF  /* 8 bytes unit */
@@ -582 +680 @@
 #define DMA_CFG_OUT_ORDER       0x00000004
 #define DMA_CFG_RCB_64          0x00000000
 #define DMA_CFG_RCB_128         0x00000008
+#define DMA_CFG_PEND_AUTO_RST       0x00000008
 #define DMA_CFG_RD_BURST_128        0x00000000
 #define DMA_CFG_RD_BURST_256        0x00000010
 #define DMA_CFG_RD_BURST_512        0x00000020
@@ -601 +700 @@
 #define DMA_CFG_SMB_ENB         0x00200000
 #define DMA_CFG_CMB_NOW         0x00400000
 #define DMA_CFG_SMB_DIS         0x01000000
+#define DMA_CFG_RD_CHNL_SEL_MASK    0x0C000000
+#define DMA_CFG_RD_CHNL_SEL_1       0x00000000
+#define DMA_CFG_RD_CHNL_SEL_2       0x04000000
+#define DMA_CFG_RD_CHNL_SEL_3       0x08000000
+#define DMA_CFG_RD_CHNL_SEL_4       0x0C000000
+#define DMA_CFG_WSRAM_RDCTL     0x10000000
+#define DMA_CFG_RD_PEND_CLR     0x20000000
+#define DMA_CFG_WR_PEND_CLR     0x40000000
 #define DMA_CFG_SMB_NOW         0x80000000
 #define DMA_CFG_RD_BURST_MASK       0x07
 #define DMA_CFG_RD_BURST_SHIFT      4
@@ -623 +730 @@
 #define CMB_TX_TIMER_MASK       0x0000FFFF
 #define CMB_TX_TIMER_SHIFT      0
 
+#define ALC_MSI_MAP_TBL1        0x15D0
+
+#define ALC_MSI_ID_MAP          0x15D4
+
+#define ALC_MSI_MAP_TBL2        0x15D8
+
 #define ALC_MBOX_RD0_PROD_IDX       0x15E0
 
 #define ALC_MBOX_RD1_PROD_IDX       0x15E4
@@ -640 +753 @@
 #define MBOX_TD_PROD_HI_IDX_SHIFT   0
 #define MBOX_TD_PROD_LO_IDX_SHIFT   16
 
+#define ALC_MBOX_TD_PRI1_PROD_IDX   0x15F0  /* 16 bits AR816x */
+
+#define ALC_MBOX_TD_PRI0_PROD_IDX   0x15F2  /* 16 bits AR816x */
+
 #define ALC_MBOX_TD_CONS_IDX        0x15F4
 #define MBOX_TD_CONS_HI_IDX_MASK    0x0000FFFF
 #define MBOX_TD_CONS_LO_IDX_MASK    0xFFFF0000
 #define MBOX_TD_CONS_HI_IDX_SHIFT   0
 #define MBOX_TD_CONS_LO_IDX_SHIFT   16
 
+#define ALC_MBOX_TD_PRI1_CONS_IDX   0x15F4  /* 16 bits AR816x */
+
+#define ALC_MBOX_TD_PRI0_CONS_IDX   0x15F6  /* 16 bits AR816x */
+
 #define ALC_MBOX_RD01_CONS_IDX      0x15F8
 #define MBOX_RD0_CONS_IDX_MASK      0x0000FFFF
 #define MBOX_RD1_CONS_IDX_MASK      0xFFFF0000
@@ -674 +795 @@
 #define INTR_GPHY           0x00001000
 #define INTR_GPHY_LOW_PW        0x00002000
 #define INTR_TXQ_TO_RST         0x00004000
-#define INTR_TX_PKT         0x00008000
+#define INTR_TX_PKT0            0x00008000
 #define INTR_RX_PKT0            0x00010000
 #define INTR_RX_PKT1            0x00020000
 #define INTR_RX_PKT2            0x00040000
@@ -688 +809 @@
 #define INTR_PHY_LINK_DOWN      0x04000000
 #define INTR_DIS_INT            0x80000000
 
+/* INTR status for AR816x/AR817x  4 TX queues, 8 RX queues */
+#define INTR_TX_PKT1            0x00000020
+#define INTR_TX_PKT2            0x00000040
+#define INTR_TX_PKT3            0x00000080
+#define INTR_RX_PKT4            0x08000000
+#define INTR_RX_PKT5            0x10000000
+#define INTR_RX_PKT6            0x20000000
+#define INTR_RX_PKT7            0x40000000
+
 /* Interrupt Mask Register */
 #define ALC_INTR_MASK           0x1604
 
@@ -699 +829 @@
     (INTR_RD0_UNDERRUN | INTR_RD1_UNDERRUN |    \
     INTR_RD2_UNDERRUN | INTR_RD3_UNDERRUN)
 #else
+#define INTR_TX_PKT         INTR_TX_PKT0
 #define INTR_RX_PKT         INTR_RX_PKT0
 #define INTR_RD_UNDERRUN        INTR_RD0_UNDERRUN
 #endif
@@ -720 +851 @@
 #define HDS_CFG_BACKFILLSIZE_SHIFT  8
 #define HDS_CFG_MAX_HDRSIZE_SHIFT   20
 
+#define ALC_MBOX_TD_PRI3_PROD_IDX   0x1618  /* 16 bits AR816x */
+
+#define ALC_MBOX_TD_PRI2_PROD_IDX   0x161A  /* 16 bits AR816x */
+
+#define ALC_MBOX_TD_PRI3_CONS_IDX   0x161C  /* 16 bits AR816x */
+
+#define ALC_MBOX_TD_PRI2_CONS_IDX   0x161E  /* 16 bits AR816x */
+
 /* AR813x/AR815x registers for MAC statistics */
 #define ALC_RX_MIB_BASE         0x1700
 
 #define ALC_TX_MIB_BASE         0x1760
 
+#define ALC_DRV             0x1804  /* AR816x */
+#define DRV_ASPM_SPD10LMT_1M        0x00000000
+#define DRV_ASPM_SPD10LMT_10M       0x00000001
+#define DRV_ASPM_SPD10LMT_100M      0x00000002
+#define DRV_ASPM_SPD10LMT_NO        0x00000003
+#define DRV_ASPM_SPD10LMT_MASK      0x00000003
+#define DRV_ASPM_SPD100LMT_1M       0x00000000
+#define DRV_ASPM_SPD100LMT_10M      0x00000004
+#define DRV_ASPM_SPD100LMT_100M     0x00000008
+#define DRV_ASPM_SPD100LMT_NO       0x0000000C
+#define DRV_ASPM_SPD100LMT_MASK     0x0000000C
+#define DRV_ASPM_SPD1000LMT_100M    0x00000000
+#define DRV_ASPM_SPD1000LMT_NO      0x00000010
+#define DRV_ASPM_SPD1000LMT_1M      0x00000020
+#define DRV_ASPM_SPD1000LMT_10M     0x00000030
+#define DRV_ASPM_SPD1000LMT_MASK    0x00000000
+#define DRV_WOLCAP_BIOS_EN      0x00000100
+#define DRV_WOLMAGIC_EN         0x00000200
+#define DRV_WOLLINKUP_EN        0x00000400
+#define DRV_WOLPATTERN_EN       0x00000800
+#define DRV_AZ_EN           0x00001000
+#define DRV_WOLS5_BIOS_EN       0x00010000
+#define DRV_WOLS5_EN            0x00020000
+#define DRV_DISABLE         0x00040000
+#define DRV_PHY_MASK            0x1FE00000
+#define DRV_PHY_EEE         0x00200000
+#define DRV_PHY_APAUSE          0x00400000
+#define DRV_PHY_PAUSE           0x00800000
+#define DRV_PHY_DUPLEX          0x01000000
+#define DRV_PHY_10          0x02000000
+#define DRV_PHY_100         0x04000000
+#define DRV_PHY_1000            0x08000000
+#define DRV_PHY_AUTO            0x10000000
+#define DRV_PHY_SHIFT           21
+
 #define ALC_CLK_GATING_CFG      0x1814
 #define CLK_GATING_DMAW_ENB     0x0001
 #define CLK_GATING_DMAR_ENB     0x0002
@@ -737 +911 @@
 
 #define ALC_DEBUG_DATA1         0x1904
 
+#define ALC_MSI_RETRANS_TIMER       0x1920
+#define MSI_RETRANS_TIMER_MASK      0x0000FFFF
+#define MSI_RETRANS_MASK_SEL_STD    0x00000000
+#define MSI_RETRANS_MASK_SEL_LINE   0x00010000
+#define MSI_RETRANS_TIMER_SHIFT     0
+
+#define ALC_WRR             0x1938
+#define WRR_PRI0_MASK           0x0000001F
+#define WRR_PRI1_MASK           0x00001F00
+#define WRR_PRI2_MASK           0x001F0000
+#define WRR_PRI3_MASK           0x1F000000
+#define WRR_PRI_RESTRICT_MASK       0x60000000
+#define WRR_PRI_RESTRICT_ALL        0x00000000
+#define WRR_PRI_RESTRICT_HI     0x20000000
+#define WRR_PRI_RESTRICT_HI2        0x40000000
+#define WRR_PRI_RESTRICT_NONE       0x60000000
+#define WRR_PRI0_SHIFT          0
+#define WRR_PRI1_SHIFT          8
+#define WRR_PRI2_SHIFT          16
+#define WRR_PRI3_SHIFT          24
+#define WRR_PRI_DEFAULT         4
+#define WRR_PRI_RESTRICT_SHIFT      29
+
+#define ALC_HQTD_CFG            0x193C
+#define HQTD_CFG_Q1_BURST_MASK      0x0000000F
+#define HQTD_CFG_Q2_BURST_MASK      0x000000F0
+#define HQTD_CFG_Q3_BURST_MASK      0x00000F00
+#define HQTD_CFG_BURST_ENB      0x80000000
+#define HQTD_CFG_Q1_BURST_SHIFT     0
+#define HQTD_CFG_Q2_BURST_SHIFT     4
+#define HQTD_CFG_Q3_BURST_SHIFT     8
+
+#define ALC_MISC            0x19C0
+#define MISC_INTNLOSC_OPEN      0x00000008
+#define MISC_ISO_ENB            0x00001000
+#define MISC_PSW_OCP_MASK       0x00E00000
+#define MISC_PSW_OCP_SHIFT      21
+#define MISC_PSW_OCP_DEFAULT        7
+
+#define ALC_MISC2           0x19C8
+#define MISC2_CALB_START        0x00000001
+
+#define ALC_MISC3           0x19CC
+#define MISC3_25M_NOTO_INTNL        0x00000001
+#define MISC3_25M_BY_SW         0x00000002
+
 #define ALC_MII_DBG_ADDR        0x1D
 #define ALC_MII_DBG_DATA        0x1E
 
@@ -756 +976 @@
 #define ANA_SEL_CLK125M_DSP     0x8000
 #define ANA_MANUL_SWICH_ON_SHIFT    1
 
+#define MII_DBG_ANACTL          0x00
+#define DBG_ANACTL_DEFAULT      0x02EF
+
 #define MII_ANA_CFG4            0x04
 #define ANA_IECHO_ADJ_MASK      0x0F
 #define ANA_IECHO_ADJ_3_MASK        0x000F
@@ -767 +990 @@
 #define ANA_IECHO_ADJ_1_SHIFT       8
 #define ANA_IECHO_ADJ_0_SHIFT       12
 
+#define MII_DBG_SYSMODCTL       0x04
+#define DBG_SYSMODCTL_DEFAULT       0xBB8B
+
 #define MII_ANA_CFG5            0x05
 #define ANA_SERDES_CDR_BW_MASK      0x0003
 #define ANA_MS_PAD_DBG          0x0004
@@ -783 +1009 @@
 #define ANA_SERDES_CDR_BW_SHIFT     0
 #define ANA_SERDES_TH_LOS_SHIFT     4
 
+#define MII_DBG_SRDSYSMOD       0x05
+#define DBG_SRDSYSMOD_DEFAULT       0x2C46
+
 #define MII_ANA_CFG11           0x0B
 #define ANA_PS_HIB_EN           0x8000
 
+#define MII_DBG_HIBNEG          0x0B
+#define DBG_HIBNEG_HIB_PULSE        0x1000
+#define DBG_HIBNEG_PSHIB_EN     0x8000
+#define DBG_HIBNEG_DEFAULT      0xBC40
+
 #define MII_ANA_CFG18           0x12
 #define ANA_TEST_MODE_10BT_01MASK   0x0003
 #define ANA_LOOP_SEL_10BT       0x0004
@@ -800 +1034 @@
 #define ANA_TRIGGER_SEL_TIMER_SHIFT 12
 #define ANA_INTERVAL_SEL_TIMER_SHIFT    14
 
+#define MII_DBG_TST10BTCFG      0x12
+#define DBG_TST10BTCFG_DEFAULT      0x4C04
+
+#define MII_DBG_AZ_ANADECT      0x15
+#define DBG_AZ_ANADECT_DEFAULT      0x3220
+#define DBG_AZ_ANADECT_LONG     0x3210
+
+#define MII_DBG_MSE16DB         0x18
+#define DBG_MSE16DB_UP          0x05EA
+#define DBG_MSE16DB_DOWN        0x02EA
+
+#define MII_DBG_MSE20DB         0x1C
+#define DBG_MSE20DB_TH_MASK     0x01FC
+#define DBG_MSE20DB_TH_DEFAULT      0x2E
+#define DBG_MSE20DB_TH_HI       0x54
+#define DBG_MSE20DB_TH_SHIFT        2
+
+#define MII_DBG_AGC         0x23
+#define DBG_AGC_2_VGA_MASK      0x3F00
+#define DBG_AGC_2_VGA_SHIFT     8
+#define DBG_AGC_LONG1G_LIMT     40
+#define DBG_AGC_LONG100M_LIMT       44
+
 #define MII_ANA_CFG41           0x29
 #define ANA_TOP_PS_EN           0x8000
 
+#define MII_DBG_LEGCYPS         0x29
+#define DBG_LEGCYPS_ENB         0x8000
+#define DBG_LEGCYPS_DEFAULT     0x129D
+
 #define MII_ANA_CFG54           0x36
 #define ANA_LONG_CABLE_TH_100_MASK  0x003F
 #define ANA_DESERVED            0x0040
@@ -813 +1074 @@
 #define ANA_LONG_CABLE_TH_100_SHIFT 0
 #define ANA_SHORT_CABLE_TH_100_SHIFT    8
 
+#define MII_DBG_TST100BTCFG     0x36
+#define DBG_TST100BTCFG_DEFAULT     0xE12C
+
+#define MII_DBG_GREENCFG        0x3B
+#define DBG_GREENCFG_DEFAULT        0x7078
+
+#define MII_DBG_GREENCFG2       0x3D
+#define DBG_GREENCFG2_GATE_DFSE_EN  0x0080
+#define DBG_GREENCFG2_BP_GREEN      0x8000
+
+/* Device addr 3 */
+#define MII_EXT_PCS         3
+
+#define MII_EXT_CLDCTL3         0x8003
+#define EXT_CLDCTL3_BP_CABLE1TH_DET_GT  0x8000
+
+#define MII_EXT_CLDCTL5         0x8005
+#define EXT_CLDCTL5_BP_VD_HLFBIAS   0x4000
+
+#define MII_EXT_CLDCTL6         0x8006
+#define EXT_CLDCTL6_CAB_LEN_MASK    0x00FF
+#define EXT_CLDCTL6_CAB_LEN_SHIFT   0
+#define EXT_CLDCTL6_CAB_LEN_SHORT1G 116
+#define EXT_CLDCTL6_CAB_LEN_SHORT100M   152
+
+#define MII_EXT_VDRVBIAS        0x8062
+#define EXT_VDRVBIAS_DEFAULT        3
+
+/* Device addr 7 */
+#define MII_EXT_ANEG            7
+
+#define MII_EXT_ANEG_LOCAL_EEEADV   0x3C
+#define ANEG_LOCA_EEEADV_100BT      0x0002
+#define ANEG_LOCA_EEEADV_1000BT     0x0004
+
+#define MII_EXT_ANEG_AFE        0x801A
+#define ANEG_AFEE_10BT_100M_TH      0x0040
+
+#define MII_EXT_ANEG_S3DIG10        0x8023
+#define ANEG_S3DIG10_SL         0x0001
+#define ANEG_S3DIG10_DEFAULT        0
+
+#define MII_EXT_ANEG_NLP78      0x8027
+#define ANEG_NLP78_120M_DEFAULT     0x8A05
+
 /* Statistics counters collected by the MAC. */
 struct smb {
     /* Rx stats. */
@@ -860 +1166 @@
     uint32_t tx_multi_colls;
     uint32_t tx_late_colls;
     uint32_t tx_excess_colls;
-    uint32_t tx_abort;
     uint32_t tx_underrun;
     uint32_t tx_desc_underrun;
     uint32_t tx_lenerrs;

src/add-ons/kernel/drivers/network/atheros813x/dev/alc/if_alcvar.h

@@ -52 +52 @@
 /* Water mark to kick reclaiming Tx buffers. */
 #define ALC_TX_DESC_HIWAT   ((ALC_TX_RING_CNT * 6) / 10)
 
+/*
+ * AR816x controllers support up to 16 messages but this driver
+ * uses single message.
+ */
 #define ALC_MSI_MESSAGES    1
 #define ALC_MSIX_MESSAGES   1
 
@@ -224 +228 @@
 #define ALC_FLAG_PM     0x0010
 #define ALC_FLAG_FASTETHER  0x0020
 #define ALC_FLAG_JUMBO      0x0040
-#define ALC_FLAG_ASPM_MON   0x0080
 #define ALC_FLAG_CMB_BUG    0x0100
 #define ALC_FLAG_SMB_BUG    0x0200
 #define ALC_FLAG_L0S        0x0400
 #define ALC_FLAG_L1S        0x0800
 #define ALC_FLAG_APS        0x1000
-#define ALC_FLAG_LINK       0x8000
+#define ALC_FLAG_AR816X_FAMILY  0x2000
+#define ALC_FLAG_LINK_WAR   0x4000
+#define ALC_FLAG_E2X00      0x8000
+#define ALC_FLAG_LINK       0x10000
 
     struct callout      alc_tick_ch;
     struct alc_hw_stats alc_stats;

src/libs/compat/freebsd_network/compat/net/if.h

@@ -84 +84 @@
     u_long  ifi_imcasts;        /* packets received via multicast */
     u_long  ifi_omcasts;        /* packets sent via multicast */
     u_long  ifi_iqdrops;        /* dropped on input, this interface */
+    u_long  ifi_oqdrops;        /* dropped on output, this interface */
     u_long  ifi_noproto;        /* destined for unsupported protocol */
     u_long  ifi_hwassist;       /* HW offload capabilities */
     time_t  ifi_epoch;          /* uptime at attach or stat reset */

src/libs/compat/freebsd_network/compat/net/if_media.h

@@ -145 +145 @@
 #define IFM_10G_SR  19      /* 10GBase-SR 850nm Multi-mode */
 #define IFM_10G_CX4 20      /* 10GBase CX4 copper */
 #define IFM_2500_SX 21      /* 2500BaseSX - multi-mode fiber */
+#define IFM_UNKNOWN 25      /* media types not defined yet */
+
 
 /* note 31 is the max! */
 
@@ -352 +354 @@
     { IFM_10G_LR,   "10Gbase-LR" },                 \
     { IFM_10G_SR,   "10Gbase-SR" },                 \
     { IFM_10G_CX4,  "10Gbase-CX4" },                \
+    { IFM_UNKNOWN,  "Unknown" },                    \
     { IFM_2500_SX,  "2500BaseSX" },                 \
     { 0, NULL },                            \
 }

src/libs/compat/freebsd_network/compat/net/if_var.h

@@ -89 +89 @@
 
 #include <altq/if_altq.h>
 
+typedef enum {
+    IFCOUNTER_IPACKETS = 0,
+    IFCOUNTER_IERRORS,
+    IFCOUNTER_OPACKETS,
+    IFCOUNTER_OERRORS,
+    IFCOUNTER_COLLISIONS,
+    IFCOUNTER_IBYTES,
+    IFCOUNTER_OBYTES,
+    IFCOUNTER_IMCASTS,
+    IFCOUNTER_OMCASTS,
+    IFCOUNTER_IQDROPS,
+    IFCOUNTER_OQDROPS,
+    IFCOUNTER_NOPROTO,
+    IFCOUNTERS /* Array size. */
+} ift_counter;
+
 TAILQ_HEAD(ifnethead, ifnet);   /* we use TAILQs so that the order of */
 TAILQ_HEAD(ifaddrhead, ifaddr); /* instantiation is preserved in the list */
 TAILQ_HEAD(ifprefixhead, ifprefix);
@@ -227 +243 @@
 #define if_imcasts  if_data.ifi_imcasts
 #define if_omcasts  if_data.ifi_omcasts
 #define if_iqdrops  if_data.ifi_iqdrops
+#define if_oqdrops  if_data.ifi_oqdrops
 #define if_noproto  if_data.ifi_noproto
 #define if_lastchange   if_data.ifi_lastchange
 #define if_recvquota    if_data.ifi_recvquota
@@ -662 +679 @@
 typedef void if_com_free_t(void *com, u_char type);
 void    if_register_com_alloc(u_char type, if_com_alloc_t *a, if_com_free_t *f);
 void    if_deregister_com_alloc(u_char type);
+void    if_inc_counter(struct ifnet *, ift_counter, int64_t);
 
 #define IF_LLADDR(ifp)      LLADDR(&ifp->if_lladdr)
 

src/libs/compat/freebsd_network/if.c

@@ -715 +715 @@
 
     return 0;
 }
+
+void
+if_inc_counter(struct ifnet *ifp, ift_counter cnt, int64_t inc)
+{
+    switch (cnt) {
+        case IFCOUNTER_IPACKETS:
+            atomic_add(&ifp->if_ipackets, inc);
+            break;
+        case IFCOUNTER_IERRORS:
+            atomic_add(&ifp->if_ierrors, inc);
+            break;
+        case IFCOUNTER_OPACKETS:
+            atomic_add(&ifp->if_opackets, inc);
+            break;
+        case IFCOUNTER_OERRORS:
+            atomic_add(&ifp->if_oerrors, inc);
+            break;
+        case IFCOUNTER_COLLISIONS:
+            atomic_add(&ifp->if_collisions, inc);
+            break;
+        case IFCOUNTER_IBYTES:
+            atomic_add(&ifp->if_ibytes, inc);
+            break;
+        case IFCOUNTER_OBYTES:
+            atomic_add(&ifp->if_obytes, inc);
+            break;
+        case IFCOUNTER_IMCASTS:
+            atomic_add(&ifp->if_imcasts, inc);
+            break;
+        case IFCOUNTER_OMCASTS:
+            atomic_add(&ifp->if_omcasts, inc);
+            break;
+        case IFCOUNTER_IQDROPS:
+            atomic_add(&ifp->if_iqdrops, inc);
+            break;
+        case IFCOUNTER_OQDROPS:
+            atomic_add(&ifp->if_oqdrops, inc);
+            break;
+        case IFCOUNTER_NOPROTO:
+            atomic_add(&ifp->if_noproto, inc);
+            break;
+        case IFCOUNTERS:
+            KASSERT(cnt < IFCOUNTERS, ("%s: invalid cnt %d", __func__, cnt));
+    }
+}