#include <sys/param.h>
#include <sys/bitops.h>
#include <sys/endian.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/interrupt.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/rman.h>
#include <sys/serialize.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/in_cksum.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/bpf.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/ifq_var.h>
#include <net/vlan/if_vlan_var.h>
#include <net/vlan/if_vlan_ether.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <dev/netif/mii_layer/mii.h>
#include <dev/netif/mii_layer/miivar.h>
#include <bus/pci/pcireg.h>
#include <bus/pci/pcivar.h>
#include "pcidevs.h"
#include <dev/netif/alc/if_alcreg.h>
#include <dev/netif/alc/if_alcvar.h>
#include "miibus_if.h"
#undef ALC_USE_CUSTOM_CSUM
#ifdef ALC_USE_CUSTOM_CSUM
#define ALC_CSUM_FEATURES (CSUM_TCP | CSUM_UDP)
#else
#define ALC_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
#endif
#define ALC_LOCK(sc)
#define ALC_UNLOCK(sc)
#define ALC_LOCK_ASSERT(sc)
#define PCIER_LINK_CAP PCIER_LINKCAP
#define PCIEM_LINK_CAP_ASPM PCIEM_LNKCAP_ASPM_MASK
#define PCIER_LINK_CTL PCIER_LINKCTRL
#define PCIEM_LINK_CTL_RCB PCIEM_LNKCTL_RCB
#define PCIEM_LINK_CTL_ASPMC PCIEM_LNKCTL_ASPM_MASK
#define PCIEM_LINK_CTL_ASPMC_L0S PCIEM_LNKCTL_ASPM_L0S
#define PCIEM_LINK_CTL_ASPMC_L1 PCIEM_LNKCTL_ASPM_L1
#define PCIEM_LINK_CTL_EXTENDED_SYNC PCIEM_LNKCTL_EXTENDED_SYNC
#define PCIER_DEVICE_CTL PCIER_DEVCTRL
#define PCIEM_CTL_MAX_READ_REQUEST PCIEM_DEVCTL_MAX_READRQ_MASK
#define PCIEM_CTL_MAX_PAYLOAD PCIEM_DEVCTL_MAX_PAYLOAD_MASK
static int alc_msi_enable = 1;
TUNABLE_INT("hw.alc.msi.enable", &alc_msi_enable);
static struct alc_ident alc_ident_table[] = {
{ VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8131, 9 * 1024,
"Atheros AR8131 PCIe Gigabit Ethernet" },
{ VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8132, 9 * 1024,
"Atheros AR8132 PCIe Fast Ethernet" },
{ VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8151, 6 * 1024,
"Atheros AR8151 v1.0 PCIe Gigabit Ethernet" },
{ VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8151_V2, 6 * 1024,
"Atheros AR8151 v2.0 PCIe Gigabit Ethernet" },
{ VENDORID_ATHEROS, DEVICEID_ATHEROS_AR8152_B, 6 * 1024,
"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 int alc_attach(device_t);
static int alc_probe(device_t);
static int alc_detach(device_t);
static int alc_shutdown(device_t);
static int alc_suspend(device_t);
static int alc_resume(device_t);
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 void alc_init(void *);
static void alc_start(struct ifnet *, struct ifaltq_subque *);
static void alc_watchdog(struct alc_softc *);
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_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
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);
#ifdef foo
static int alc_check_boundary(struct alc_softc *);
#endif
static void alc_config_msi(struct alc_softc *);
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);
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_cmb(struct alc_softc *);
static void alc_init_rr_ring(struct alc_softc *);
static int alc_init_rx_ring(struct alc_softc *);
static void alc_init_smb(struct alc_softc *);
static void alc_init_tx_ring(struct alc_softc *);
static void alc_intr(void *);
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_newbuf(struct alc_softc *, struct alc_rxdesc *, boolean_t);
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 void alc_reset(struct alc_softc *);
static void alc_rxeof(struct alc_softc *, struct rx_rdesc *);
static int alc_rxintr(struct alc_softc *);
static void alc_rxfilter(struct alc_softc *);
static void alc_rxvlan(struct alc_softc *);
#if 0
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 *);
#endif
static void alc_start_queue(struct alc_softc *);
static void alc_stats_clear(struct alc_softc *);
static void alc_stats_update(struct alc_softc *);
static void alc_stop(struct alc_softc *);
static void alc_stop_mac(struct alc_softc *);
static void alc_stop_queue(struct alc_softc *);
static void alc_sysctl_node(struct alc_softc *);
static void alc_tick(void *);
static void alc_txeof(struct alc_softc *);
static int sysctl_hw_alc_proc_limit(SYSCTL_HANDLER_ARGS);
static int sysctl_hw_alc_int_mod(SYSCTL_HANDLER_ARGS);
static device_method_t alc_methods[] = {
DEVMETHOD(device_probe, alc_probe),
DEVMETHOD(device_attach, alc_attach),
DEVMETHOD(device_detach, alc_detach),
DEVMETHOD(device_shutdown, alc_shutdown),
DEVMETHOD(device_suspend, alc_suspend),
DEVMETHOD(device_resume, alc_resume),
DEVMETHOD(miibus_readreg, alc_miibus_readreg),
DEVMETHOD(miibus_writereg, alc_miibus_writereg),
DEVMETHOD(miibus_statchg, alc_miibus_statchg),
{ NULL, NULL }
};
static DEFINE_CLASS_0(alc, alc_driver, alc_methods, sizeof(struct alc_softc));
static devclass_t alc_devclass;
DECLARE_DUMMY_MODULE(if_alc);
DRIVER_MODULE(if_alc, pci, alc_driver, alc_devclass, NULL, NULL);
DRIVER_MODULE(miibus, alc, miibus_driver, miibus_devclass, NULL, NULL);
static const 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;
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;
if ((sc->alc_flags & ALC_FLAG_FASTETHER) != 0 &&
reg == MII_EXTSR)
return (0);
CSR_WRITE_4(sc, ALC_MDIO, MDIO_OP_EXECUTE | MDIO_OP_READ |
MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | 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_EXECUTE | 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 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;
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 |
MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | 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_EXECUTE | MDIO_OP_BUSY)) == 0)
break;
}
if (i == 0)
device_printf(sc->alc_dev, "phy write timeout : %d\n", reg);
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)
{
struct alc_softc *sc;
struct mii_data *mii;
struct ifnet *ifp;
uint32_t reg;
sc = device_get_softc(dev);
mii = device_get_softc(sc->alc_miibus);
ifp = sc->alc_ifp;
if (mii == NULL || ifp == NULL ||
(ifp->if_flags & IFF_RUNNING) == 0)
return;
sc->alc_flags &= ~ALC_FLAG_LINK;
if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
(IFM_ACTIVE | IFM_AVALID)) {
switch (IFM_SUBTYPE(mii->mii_media_active)) {
case IFM_10_T:
case IFM_100_TX:
sc->alc_flags |= ALC_FLAG_LINK;
break;
case IFM_1000_T:
if ((sc->alc_flags & ALC_FLAG_FASTETHER) == 0)
sc->alc_flags |= ALC_FLAG_LINK;
break;
default:
break;
}
}
alc_stop_mac(sc);
if ((sc->alc_flags & ALC_FLAG_LINK) != 0) {
alc_start_queue(sc);
alc_mac_config(sc);
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, 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;
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) {
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);
}
}
}
static void
alc_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct alc_softc *sc;
struct mii_data *mii;
sc = ifp->if_softc;
if ((ifp->if_flags & IFF_UP) == 0) {
return;
}
mii = device_get_softc(sc->alc_miibus);
mii_pollstat(mii);
ifmr->ifm_status = mii->mii_media_status;
ifmr->ifm_active = mii->mii_media_active;
}
static int
alc_mediachange(struct ifnet *ifp)
{
struct alc_softc *sc;
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);
if (mii->mii_instance != 0) {
LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
mii_phy_reset(miisc);
}
error = mii_mediachg(mii);
return (error);
}
static struct alc_ident *
alc_find_ident(device_t dev)
{
struct alc_ident *ident;
uint16_t vendor, devid;
vendor = pci_get_vendor(dev);
devid = pci_get_device(dev);
for (ident = alc_ident_table; ident->name != NULL; ident++) {
if (vendor == ident->vendorid && devid == ident->deviceid)
return (ident);
}
return (NULL);
}
static int
alc_probe(device_t dev)
{
struct alc_ident *ident;
ident = alc_find_ident(dev);
if (ident != NULL) {
device_set_desc(dev, ident->name);
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static void
alc_get_macaddr(struct alc_softc *sc)
{
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;
eeprom = 0;
opt = CSR_READ_4(sc, ALC_OPT_CFG);
if ((CSR_READ_4(sc, ALC_MASTER_CFG) & MASTER_OTP_SEL) != 0 &&
(CSR_READ_4(sc, ALC_TWSI_DEBUG) & TWSI_DEBUG_DEV_EXIST) != 0) {
eeprom++;
switch (sc->alc_ident->deviceid) {
case DEVICEID_ATHEROS_AR8131:
case DEVICEID_ATHEROS_AR8132:
if ((opt & OPT_CFG_CLK_ENB) == 0) {
opt |= OPT_CFG_CLK_ENB;
CSR_WRITE_4(sc, ALC_OPT_CFG, opt);
CSR_READ_4(sc, ALC_OPT_CFG);
DELAY(1000);
}
break;
case DEVICEID_ATHEROS_AR8151:
case DEVICEID_ATHEROS_AR8151_V2:
case DEVICEID_ATHEROS_AR8152_B:
case DEVICEID_ATHEROS_AR8152_B2:
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x00);
val = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, val & 0xFF7F);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x3B);
val = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, val | 0x0008);
DELAY(20);
break;
}
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_WOL_CFG, 0);
CSR_READ_4(sc, ALC_WOL_CFG);
CSR_WRITE_4(sc, ALC_TWSI_CFG, CSR_READ_4(sc, ALC_TWSI_CFG) |
TWSI_CFG_SW_LD_START);
for (i = 100; i > 0; i--) {
DELAY(1000);
if ((CSR_READ_4(sc, ALC_TWSI_CFG) &
TWSI_CFG_SW_LD_START) == 0)
break;
}
if (i == 0)
device_printf(sc->alc_dev,
"reloading EEPROM timeout!\n");
} else {
if (bootverbose)
device_printf(sc->alc_dev, "EEPROM not found!\n");
}
if (eeprom != 0) {
switch (sc->alc_ident->deviceid) {
case DEVICEID_ATHEROS_AR8131:
case DEVICEID_ATHEROS_AR8132:
if ((opt & OPT_CFG_CLK_ENB) != 0) {
opt &= ~OPT_CFG_CLK_ENB;
CSR_WRITE_4(sc, ALC_OPT_CFG, opt);
CSR_READ_4(sc, ALC_OPT_CFG);
DELAY(1000);
}
break;
case DEVICEID_ATHEROS_AR8151:
case DEVICEID_ATHEROS_AR8151_V2:
case DEVICEID_ATHEROS_AR8152_B:
case DEVICEID_ATHEROS_AR8152_B2:
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x00);
val = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, val | 0x0080);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x3B);
val = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, val & 0xFFF7);
DELAY(20);
break;
}
}
alc_get_macaddr_par(sc);
}
static void
alc_get_macaddr_816x(struct alc_softc *sc)
{
uint32_t reg;
int i, reloaded;
reloaded = 0;
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");
}
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;
sc->alc_eaddr[1] = (ea[1] >> 0) & 0xFF;
sc->alc_eaddr[2] = (ea[0] >> 24) & 0xFF;
sc->alc_eaddr[3] = (ea[0] >> 16) & 0xFF;
sc->alc_eaddr[4] = (ea[0] >> 8) & 0xFF;
sc->alc_eaddr[5] = (ea[0] >> 0) & 0xFF;
}
static void
alc_disable_l0s_l1(struct alc_softc *sc)
{
uint32_t pmcfg;
if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
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;
CSR_WRITE_2(sc, ALC_GPHY_CFG, GPHY_CFG_SEL_ANA_RESET);
CSR_READ_2(sc, ALC_GPHY_CFG);
DELAY(10 * 1000);
CSR_WRITE_2(sc, ALC_GPHY_CFG, GPHY_CFG_EXT_RESET |
GPHY_CFG_SEL_ANA_RESET);
CSR_READ_2(sc, ALC_GPHY_CFG);
DELAY(10 * 1000);
if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B) {
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x000A);
data = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, data & 0xDFFF);
}
if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151 ||
sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151_V2 ||
sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B ||
sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B2) {
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x003B);
data = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, data & 0xFFF7);
DELAY(20 * 1000);
}
if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151) {
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x0029);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, 0x929D);
}
if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8131 ||
sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8132 ||
sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8151_V2 ||
sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B2) {
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, 0x0029);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, 0xB6DD);
}
data = ANA_LOOP_SEL_10BT | ANA_EN_MASK_TB | ANA_EN_10BT_IDLE |
((1 << ANA_INTERVAL_SEL_TIMER_SHIFT) & ANA_INTERVAL_SEL_TIMER_MASK);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, MII_ANA_CFG18);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, data);
data = ((2 << ANA_SERDES_CDR_BW_SHIFT) & ANA_SERDES_CDR_BW_MASK) |
ANA_SERDES_EN_DEEM | ANA_SERDES_SEL_HSP | ANA_SERDES_EN_PLL |
ANA_SERDES_EN_LCKDT;
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, MII_ANA_CFG5);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, data);
data = ((44 << ANA_LONG_CABLE_TH_100_SHIFT) &
ANA_LONG_CABLE_TH_100_MASK) |
((33 << ANA_SHORT_CABLE_TH_100_SHIFT) &
ANA_SHORT_CABLE_TH_100_SHIFT) |
ANA_BP_BAD_LINK_ACCUM | ANA_BP_SMALL_BW;
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, MII_ANA_CFG54);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, data);
data = ((11 << ANA_IECHO_ADJ_3_SHIFT) & ANA_IECHO_ADJ_3_MASK) |
((11 << ANA_IECHO_ADJ_2_SHIFT) & ANA_IECHO_ADJ_2_MASK) |
((8 << ANA_IECHO_ADJ_1_SHIFT) & ANA_IECHO_ADJ_1_MASK) |
((8 << ANA_IECHO_ADJ_0_SHIFT) & ANA_IECHO_ADJ_0_MASK);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, MII_ANA_CFG4);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, data);
data = ((7 & ANA_MANUL_SWICH_ON_SHIFT) & ANA_MANUL_SWICH_ON_MASK) |
ANA_RESTART_CAL | ANA_MAN_ENABLE | ANA_SEL_HSP | ANA_EN_HB |
ANA_OEN_125M;
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_ADDR, MII_ANA_CFG0);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA, data);
DELAY(1000);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr, ALC_MII_DBG_ADDR,
0x0029);
data = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
data &= ~0x8000;
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr, ALC_MII_DBG_DATA,
data);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr, ALC_MII_DBG_ADDR,
0x000B);
data = alc_miibus_readreg(sc->alc_dev, sc->alc_phyaddr,
ALC_MII_DBG_DATA);
data &= ~0x8000;
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr, ALC_MII_DBG_DATA,
data);
}
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
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);
#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
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
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);
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);
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) {
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);
val = alc_miidbg_readreg(sc, MII_DBG_GREENCFG2);
val |= DBG_GREENCFG2_BP_GREEN;
alc_miidbg_writereg(sc, MII_DBG_GREENCFG2, val);
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:
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
MII_BMCR, BMCR_ISO | BMCR_PDOWN);
break;
default:
CSR_WRITE_2(sc, ALC_GPHY_CFG, GPHY_CFG_EXT_RESET |
GPHY_CFG_SEL_ANA_RESET | GPHY_CFG_PHY_IDDQ |
GPHY_CFG_PWDOWN_HW);
DELAY(1000);
break;
}
}
static void
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;
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)) ==
(ALC_FLAG_APS | ALC_FLAG_PCIE))
linkcfg = CSR_READ_2(sc, sc->alc_expcap +
PCIR_EXPRESS_LINK_CTL);
else
linkcfg = 0;
pmcfg &= ~PM_CFG_SERDES_PD_EX_L1;
pmcfg &= ~(PM_CFG_L1_ENTRY_TIMER_MASK | PM_CFG_LCKDET_TIMER_MASK);
pmcfg |= PM_CFG_MAC_ASPM_CHK;
pmcfg |= (PM_CFG_LCKDET_TIMER_DEFAULT << PM_CFG_LCKDET_TIMER_SHIFT);
pmcfg &= ~(PM_CFG_ASPM_L1_ENB | PM_CFG_ASPM_L0S_ENB);
if ((sc->alc_flags & ALC_FLAG_APS) != 0) {
linkcfg &= ~PCIEM_LINK_CTL_EXTENDED_SYNC;
if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B &&
sc->alc_rev == ATHEROS_AR8152_B_V10)
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 |
PM_CFG_HOTRST);
pmcfg |= (PM_CFG_L1_ENTRY_TIMER_DEFAULT <<
PM_CFG_L1_ENTRY_TIMER_SHIFT);
pmcfg &= ~PM_CFG_PM_REQ_TIMER_MASK;
pmcfg |= (PM_CFG_PM_REQ_TIMER_DEFAULT <<
PM_CFG_PM_REQ_TIMER_SHIFT);
pmcfg |= PM_CFG_SERDES_PD_EX_L1 | PM_CFG_PCIE_RECV;
}
if ((sc->alc_flags & ALC_FLAG_LINK) != 0) {
if ((sc->alc_flags & ALC_FLAG_L0S) != 0)
pmcfg |= PM_CFG_ASPM_L0S_ENB;
if ((sc->alc_flags & ALC_FLAG_L1S) != 0)
pmcfg |= PM_CFG_ASPM_L1_ENB;
if ((sc->alc_flags & ALC_FLAG_APS) != 0) {
if (sc->alc_ident->deviceid ==
DEVICEID_ATHEROS_AR8152_B)
pmcfg &= ~PM_CFG_ASPM_L0S_ENB;
pmcfg &= ~(PM_CFG_SERDES_L1_ENB |
PM_CFG_SERDES_PLL_L1_ENB |
PM_CFG_SERDES_BUDS_RX_L1_ENB);
pmcfg |= PM_CFG_CLK_SWH_L1;
if (media == IFM_100_TX || media == IFM_1000_T) {
pmcfg &= ~PM_CFG_L1_ENTRY_TIMER_MASK;
switch (sc->alc_ident->deviceid) {
case DEVICEID_ATHEROS_AR8152_B:
pmcfg |= (7 <<
PM_CFG_L1_ENTRY_TIMER_SHIFT);
break;
case DEVICEID_ATHEROS_AR8152_B2:
case DEVICEID_ATHEROS_AR8151_V2:
pmcfg |= (4 <<
PM_CFG_L1_ENTRY_TIMER_SHIFT);
break;
default:
pmcfg |= (15 <<
PM_CFG_L1_ENTRY_TIMER_SHIFT);
break;
}
}
} else {
pmcfg |= PM_CFG_SERDES_L1_ENB |
PM_CFG_SERDES_PLL_L1_ENB |
PM_CFG_SERDES_BUDS_RX_L1_ENB;
pmcfg &= ~(PM_CFG_CLK_SWH_L1 |
PM_CFG_ASPM_L1_ENB | PM_CFG_ASPM_L0S_ENB);
}
} else {
pmcfg &= ~(PM_CFG_SERDES_BUDS_RX_L1_ENB | PM_CFG_SERDES_L1_ENB |
PM_CFG_SERDES_PLL_L1_ENB);
pmcfg |= PM_CFG_CLK_SWH_L1;
if ((sc->alc_flags & ALC_FLAG_L1S) != 0)
pmcfg |= PM_CFG_ASPM_L1_ENB;
}
CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
}
static void
alc_aspm_816x(struct alc_softc *sc, int init)
{
uint32_t pmcfg;
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) {
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_flags & IFF_RUNNING) != 0)
pmcfg |= PM_CFG_ASPM_L1_ENB | PM_CFG_MAC_ASPM_CHK;
}
CSR_WRITE_4(sc, ALC_PM_CFG, pmcfg);
}
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;
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 &&
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);
val |= 3 << PCIE_PHYMISC2_SERDES_CDR_SHIFT;
val |= 3 << PCIE_PHYMISC2_SERDES_TH_SHIFT;
CSR_WRITE_4(sc, ALC_PCIE_PHYMISC2, val);
}
cap = CSR_READ_2(sc, sc->alc_expcap + PCIER_LINK_CAP);
if ((cap & PCIEM_LINK_CAP_ASPM) != 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(sc->alc_dev, "RCB %u bytes\n",
sc->alc_rcb == DMA_CFG_RCB_64 ? 64 : 128);
state = ctl & PCIEM_LINK_CTL_ASPMC;
if (state & PCIEM_LINK_CTL_ASPMC_L0S)
sc->alc_flags |= ALC_FLAG_L0S;
if (state & PCIEM_LINK_CTL_ASPMC_L1)
sc->alc_flags |= ALC_FLAG_L1S;
if (bootverbose)
device_printf(sc->alc_dev, "ASPM %s %s\n",
aspm_state[state],
state == 0 ? "disabled" : "enabled");
alc_disable_l0s_l1(sc);
} else {
if (bootverbose)
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) {
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_irq_type == PCI_INTR_TYPE_MSI)
CSR_WRITE_4(sc, ALC_MSI_RETRANS_TIMER, ctl |
MSI_RETRANS_MASK_SEL_LINE);
else
CSR_WRITE_4(sc, ALC_MSI_RETRANS_TIMER, 0);
}
}
static int
alc_attach(device_t dev)
{
struct alc_softc *sc;
struct ifnet *ifp;
uint16_t burst;
int base, error;
u_int intr_flags;
error = 0;
sc = device_get_softc(dev);
sc->alc_dev = dev;
sc->alc_rev = pci_get_revid(dev);
callout_init_mp(&sc->alc_tick_ch);
sc->alc_ident = alc_find_ident(dev);
pci_enable_busmaster(dev);
sc->alc_res_rid = PCIR_BAR(0);
sc->alc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&sc->alc_res_rid, RF_ACTIVE);
if (error != 0) {
device_printf(dev, "cannot allocate memory resources.\n");
goto fail;
}
sc->alc_res_btag = rman_get_bustag(sc->alc_res);
sc->alc_res_bhand = rman_get_bushandle(sc->alc_res);
sc->alc_phyaddr = ALC_PHY_ADDR;
switch (sc->alc_ident->deviceid) {
case DEVICEID_ATHEROS_E2200:
case DEVICEID_ATHEROS_E2400:
case DEVICEID_ATHEROS_E2500:
sc->alc_flags |= ALC_FLAG_E2X00;
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;
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;
case DEVICEID_ATHEROS_AR8132:
sc->alc_flags |= ALC_FLAG_FASTETHER;
break;
case DEVICEID_ATHEROS_AR8151:
case DEVICEID_ATHEROS_AR8151_V2:
sc->alc_flags |= ALC_FLAG_APS;
default:
break;
}
sc->alc_flags |= ALC_FLAG_JUMBO;
sc->alc_flags |= ALC_FLAG_SMB_BUG;
sc->alc_flags |= ALC_FLAG_CMB_BUG;
sc->alc_chip_rev = CSR_READ_4(sc, ALC_MASTER_CFG) >>
MASTER_CHIP_REV_SHIFT;
if (bootverbose) {
device_printf(dev, "PCI device revision : 0x%04x\n",
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);
sc->alc_dma_rd_burst = 0;
sc->alc_dma_wr_burst = 0;
sc->alc_rcb = DMA_CFG_RCB_64;
if (pci_find_extcap(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;
if ((sc->alc_flags & ALC_FLAG_E2X00) != 0)
sc->alc_dma_wr_burst = 0;
alc_init_pcie(sc);
}
alc_phy_reset(sc);
alc_stop_mac(sc);
alc_reset(sc);
sc->alc_irq_type = pci_alloc_1intr(dev, alc_msi_enable,
&sc->alc_irq_rid, &intr_flags);
sc->alc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->alc_irq_rid, intr_flags);
if (error != 0) {
device_printf(dev, "cannot allocate IRQ resources.\n");
goto fail;
}
alc_sysctl_node(sc);
if ((error = alc_dma_alloc(sc)) != 0)
goto fail;
alc_get_macaddr(sc);
ifp = sc->alc_ifp = &sc->arpcom.ac_if;
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = alc_ioctl;
ifp->if_start = alc_start;
ifp->if_init = alc_init;
ifq_set_maxlen(&ifp->if_snd, ALC_TX_RING_CNT - 1);
ifq_set_ready(&ifp->if_snd);
ifp->if_capabilities = IFCAP_TXCSUM;
ifp->if_hwassist = ALC_CSUM_FEATURES;
#if 0
if (pci_find_extcap(dev, PCIY_PMG, &pmc) == 0) {
ifp->if_capabilities |= IFCAP_WOL_MAGIC | IFCAP_WOL_MCAST;
sc->alc_flags |= ALC_FLAG_PM;
sc->alc_pmcap = base;
}
#endif
ifp->if_capenable = ifp->if_capabilities;
ifp->if_capabilities |= IFCAP_VLAN_MTU;
ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM;
ifp->if_capenable = ifp->if_capabilities;
if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
ifp->if_capenable &= ~IFCAP_TXCSUM;
ifp->if_hwassist &= ~ALC_CSUM_FEATURES;
}
if ((error = mii_phy_probe(dev, &sc->alc_miibus, alc_mediachange,
alc_mediastatus)) != 0) {
device_printf(dev, "no PHY found!\n");
goto fail;
}
ether_ifattach(ifp, sc->alc_eaddr, NULL);
ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->alc_irq));
#if 0
TASK_INIT(&sc->alc_tx_task, 1, alc_tx_task, ifp);
sc->alc_tq = taskqueue_create("alc_taskq", M_WAITOK,
taskqueue_thread_enqueue, &sc->alc_tq);
if (sc->alc_tq == NULL) {
device_printf(dev, "could not create taskqueue.\n");
ether_ifdetach(ifp);
error = ENXIO;
goto fail;
}
taskqueue_start_threads(&sc->alc_tq, 1, TDPRI_KERN_DAEMON, -1, "%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)
msic = ALC_MSI_MESSAGES;
else
msic = 1;
for (i = 0; i < msic; i++) {
error = bus_setup_intr(dev, sc->alc_irq[i], INTR_MPSAFE,
alc_intr, sc,
&sc->alc_intrhand[i], NULL);
if (error != 0)
break;
}
if (error != 0) {
device_printf(dev, "could not set up interrupt handler.\n");
taskqueue_free(sc->alc_tq);
sc->alc_tq = NULL;
ether_ifdetach(ifp);
goto fail;
}
#else
alc_config_msi(sc);
error = bus_setup_intr(dev, sc->alc_irq, INTR_MPSAFE, alc_intr, sc,
&sc->alc_intrhand, ifp->if_serializer);
if (error) {
device_printf(dev, "could not set up interrupt handler.\n");
ether_ifdetach(ifp);
goto fail;
}
#endif
fail:
if (error != 0)
alc_detach(dev);
return (error);
}
static int
alc_detach(device_t dev)
{
struct alc_softc *sc = device_get_softc(dev);
if (device_is_attached(dev)) {
struct ifnet *ifp = sc->alc_ifp;
lwkt_serialize_enter(ifp->if_serializer);
alc_stop(sc);
bus_teardown_intr(dev, sc->alc_irq, sc->alc_intrhand);
lwkt_serialize_exit(ifp->if_serializer);
ether_ifdetach(ifp);
}
if (sc->alc_miibus != NULL)
device_delete_child(dev, sc->alc_miibus);
bus_generic_detach(dev);
if (sc->alc_res != NULL)
alc_phy_down(sc);
if (sc->alc_irq != NULL) {
bus_release_resource(dev, SYS_RES_IRQ, sc->alc_irq_rid,
sc->alc_irq);
}
if (sc->alc_irq_type == PCI_INTR_TYPE_MSI)
pci_release_msi(dev);
if (sc->alc_res != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY, sc->alc_res_rid,
sc->alc_res);
}
alc_dma_free(sc);
return (0);
}
#define ALC_SYSCTL_STAT_ADD32(c, h, n, p, d) \
SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
#define ALC_SYSCTL_STAT_ADD64(c, h, n, p, d) \
SYSCTL_ADD_QUAD(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
static void
alc_sysctl_node(struct alc_softc *sc)
{
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child, *parent;
struct alc_hw_stats *stats;
int error;
stats = &sc->alc_stats;
ctx = device_get_sysctl_ctx(sc->alc_dev);
child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->alc_dev));
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_rx_mod",
CTLTYPE_INT | CTLFLAG_RW, &sc->alc_int_rx_mod, 0,
sysctl_hw_alc_int_mod, "I", "alc Rx interrupt moderation");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "int_tx_mod",
CTLTYPE_INT | CTLFLAG_RW, &sc->alc_int_tx_mod, 0,
sysctl_hw_alc_int_mod, "I", "alc Tx interrupt moderation");
sc->alc_int_rx_mod = ALC_IM_RX_TIMER_DEFAULT;
error = resource_int_value(device_get_name(sc->alc_dev),
device_get_unit(sc->alc_dev), "int_rx_mod", &sc->alc_int_rx_mod);
if (error == 0) {
if (sc->alc_int_rx_mod < ALC_IM_TIMER_MIN ||
sc->alc_int_rx_mod > ALC_IM_TIMER_MAX) {
device_printf(sc->alc_dev, "int_rx_mod value out of "
"range; using default: %d\n",
ALC_IM_RX_TIMER_DEFAULT);
sc->alc_int_rx_mod = ALC_IM_RX_TIMER_DEFAULT;
}
}
sc->alc_int_tx_mod = ALC_IM_TX_TIMER_DEFAULT;
error = resource_int_value(device_get_name(sc->alc_dev),
device_get_unit(sc->alc_dev), "int_tx_mod", &sc->alc_int_tx_mod);
if (error == 0) {
if (sc->alc_int_tx_mod < ALC_IM_TIMER_MIN ||
sc->alc_int_tx_mod > ALC_IM_TIMER_MAX) {
device_printf(sc->alc_dev, "int_tx_mod value out of "
"range; using default: %d\n",
ALC_IM_TX_TIMER_DEFAULT);
sc->alc_int_tx_mod = ALC_IM_TX_TIMER_DEFAULT;
}
}
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "process_limit",
CTLTYPE_INT | CTLFLAG_RW, &sc->alc_process_limit, 0,
sysctl_hw_alc_proc_limit, "I",
"max number of Rx events to process");
sc->alc_process_limit = ALC_PROC_DEFAULT;
error = resource_int_value(device_get_name(sc->alc_dev),
device_get_unit(sc->alc_dev), "process_limit",
&sc->alc_process_limit);
if (error == 0) {
if (sc->alc_process_limit < ALC_PROC_MIN ||
sc->alc_process_limit > ALC_PROC_MAX) {
device_printf(sc->alc_dev,
"process_limit value out of range; "
"using default: %d\n", ALC_PROC_DEFAULT);
sc->alc_process_limit = ALC_PROC_DEFAULT;
}
}
tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
NULL, "ALC statistics");
parent = SYSCTL_CHILDREN(tree);
tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
NULL, "Rx MAC statistics");
child = SYSCTL_CHILDREN(tree);
ALC_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
&stats->rx_frames, "Good frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "good_bcast_frames",
&stats->rx_bcast_frames, "Good broadcast frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "good_mcast_frames",
&stats->rx_mcast_frames, "Good multicast frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "pause_frames",
&stats->rx_pause_frames, "Pause control frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "control_frames",
&stats->rx_control_frames, "Control frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "crc_errs",
&stats->rx_crcerrs, "CRC errors");
ALC_SYSCTL_STAT_ADD32(ctx, child, "len_errs",
&stats->rx_lenerrs, "Frames with length mismatched");
ALC_SYSCTL_STAT_ADD64(ctx, child, "good_octets",
&stats->rx_bytes, "Good octets");
ALC_SYSCTL_STAT_ADD64(ctx, child, "good_bcast_octets",
&stats->rx_bcast_bytes, "Good broadcast octets");
ALC_SYSCTL_STAT_ADD64(ctx, child, "good_mcast_octets",
&stats->rx_mcast_bytes, "Good multicast octets");
ALC_SYSCTL_STAT_ADD32(ctx, child, "runts",
&stats->rx_runts, "Too short frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "fragments",
&stats->rx_fragments, "Fragmented frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_64",
&stats->rx_pkts_64, "64 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_65_127",
&stats->rx_pkts_65_127, "65 to 127 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_128_255",
&stats->rx_pkts_128_255, "128 to 255 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_256_511",
&stats->rx_pkts_256_511, "256 to 511 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_512_1023",
&stats->rx_pkts_512_1023, "512 to 1023 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_1024_1518",
&stats->rx_pkts_1024_1518, "1024 to 1518 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_1519_max",
&stats->rx_pkts_1519_max, "1519 to max frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "trunc_errs",
&stats->rx_pkts_truncated, "Truncated frames due to MTU size");
ALC_SYSCTL_STAT_ADD32(ctx, child, "fifo_oflows",
&stats->rx_fifo_oflows, "FIFO overflows");
ALC_SYSCTL_STAT_ADD32(ctx, child, "rrs_errs",
&stats->rx_rrs_errs, "Return status write-back errors");
ALC_SYSCTL_STAT_ADD32(ctx, child, "align_errs",
&stats->rx_alignerrs, "Alignment errors");
ALC_SYSCTL_STAT_ADD32(ctx, child, "filtered",
&stats->rx_pkts_filtered,
"Frames dropped due to address filtering");
tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
NULL, "Tx MAC statistics");
child = SYSCTL_CHILDREN(tree);
ALC_SYSCTL_STAT_ADD32(ctx, child, "good_frames",
&stats->tx_frames, "Good frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "good_bcast_frames",
&stats->tx_bcast_frames, "Good broadcast frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "good_mcast_frames",
&stats->tx_mcast_frames, "Good multicast frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "pause_frames",
&stats->tx_pause_frames, "Pause control frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "control_frames",
&stats->tx_control_frames, "Control frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "excess_defers",
&stats->tx_excess_defer, "Frames with excessive derferrals");
ALC_SYSCTL_STAT_ADD32(ctx, child, "defers",
&stats->tx_excess_defer, "Frames with derferrals");
ALC_SYSCTL_STAT_ADD64(ctx, child, "good_octets",
&stats->tx_bytes, "Good octets");
ALC_SYSCTL_STAT_ADD64(ctx, child, "good_bcast_octets",
&stats->tx_bcast_bytes, "Good broadcast octets");
ALC_SYSCTL_STAT_ADD64(ctx, child, "good_mcast_octets",
&stats->tx_mcast_bytes, "Good multicast octets");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_64",
&stats->tx_pkts_64, "64 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_65_127",
&stats->tx_pkts_65_127, "65 to 127 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_128_255",
&stats->tx_pkts_128_255, "128 to 255 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_256_511",
&stats->tx_pkts_256_511, "256 to 511 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_512_1023",
&stats->tx_pkts_512_1023, "512 to 1023 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_1024_1518",
&stats->tx_pkts_1024_1518, "1024 to 1518 bytes frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "frames_1519_max",
&stats->tx_pkts_1519_max, "1519 to max frames");
ALC_SYSCTL_STAT_ADD32(ctx, child, "single_colls",
&stats->tx_single_colls, "Single collisions");
ALC_SYSCTL_STAT_ADD32(ctx, child, "multi_colls",
&stats->tx_multi_colls, "Multiple collisions");
ALC_SYSCTL_STAT_ADD32(ctx, child, "late_colls",
&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, "underruns",
&stats->tx_underrun, "FIFO underruns");
ALC_SYSCTL_STAT_ADD32(ctx, child, "desc_underruns",
&stats->tx_desc_underrun, "Descriptor write-back errors");
ALC_SYSCTL_STAT_ADD32(ctx, child, "len_errs",
&stats->tx_lenerrs, "Frames with length mismatched");
ALC_SYSCTL_STAT_ADD32(ctx, child, "trunc_errs",
&stats->tx_pkts_truncated, "Truncated frames due to MTU size");
}
#undef ALC_SYSCTL_STAT_ADD32
#undef ALC_SYSCTL_STAT_ADD64
struct alc_dmamap_arg {
bus_addr_t alc_busaddr;
};
static void
alc_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
{
struct alc_dmamap_arg *ctx;
if (error != 0)
return;
KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
ctx = (struct alc_dmamap_arg *)arg;
ctx->alc_busaddr = segs[0].ds_addr;
}
#ifdef foo
static int
alc_check_boundary(struct alc_softc *sc)
{
bus_addr_t cmb_end, rx_ring_end, rr_ring_end, tx_ring_end;
rx_ring_end = sc->alc_rdata.alc_rx_ring_paddr + ALC_RX_RING_SZ;
rr_ring_end = sc->alc_rdata.alc_rr_ring_paddr + ALC_RR_RING_SZ;
cmb_end = sc->alc_rdata.alc_cmb_paddr + ALC_CMB_SZ;
tx_ring_end = sc->alc_rdata.alc_tx_ring_paddr + ALC_TX_RING_SZ;
if ((ALC_ADDR_HI(rx_ring_end) !=
ALC_ADDR_HI(sc->alc_rdata.alc_rx_ring_paddr)) ||
(ALC_ADDR_HI(rr_ring_end) !=
ALC_ADDR_HI(sc->alc_rdata.alc_rr_ring_paddr)) ||
(ALC_ADDR_HI(cmb_end) !=
ALC_ADDR_HI(sc->alc_rdata.alc_cmb_paddr)) ||
(ALC_ADDR_HI(tx_ring_end) !=
ALC_ADDR_HI(sc->alc_rdata.alc_tx_ring_paddr)))
return (EFBIG);
if ((ALC_ADDR_HI(rx_ring_end) != ALC_ADDR_HI(rr_ring_end)) ||
(ALC_ADDR_HI(rx_ring_end) != ALC_ADDR_HI(cmb_end)))
return (EFBIG);
return (0);
}
#endif
static int
alc_dma_alloc(struct alc_softc *sc)
{
struct alc_txdesc *txd;
struct alc_rxdesc *rxd;
struct alc_dmamap_arg ctx;
int error, i;
error = bus_dma_tag_create(
sc->alc_cdata.alc_parent_tag,
1, 0,
BUS_SPACE_MAXADDR,
BUS_SPACE_MAXADDR,
BUS_SPACE_MAXSIZE_32BIT,
0,
BUS_SPACE_MAXSIZE_32BIT,
0,
&sc->alc_cdata.alc_parent_tag);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create parent DMA tag.\n");
goto fail;
}
error = bus_dma_tag_create(
sc->alc_cdata.alc_parent_tag,
ALC_TX_RING_ALIGN, 0,
BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR,
ALC_TX_RING_SZ,
1,
ALC_TX_RING_SZ,
0,
&sc->alc_cdata.alc_tx_ring_tag);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create Tx ring DMA tag.\n");
goto fail;
}
error = bus_dma_tag_create(
sc->alc_cdata.alc_parent_tag,
ALC_RX_RING_ALIGN, 0,
BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR,
ALC_RX_RING_SZ,
1,
ALC_RX_RING_SZ,
0,
&sc->alc_cdata.alc_rx_ring_tag);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create Rx ring DMA tag.\n");
goto fail;
}
error = bus_dma_tag_create(
sc->alc_cdata.alc_parent_tag,
ALC_RR_RING_ALIGN, 0,
BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR,
ALC_RR_RING_SZ,
1,
ALC_RR_RING_SZ,
0,
&sc->alc_cdata.alc_rr_ring_tag);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create Rx return ring DMA tag.\n");
goto fail;
}
error = bus_dma_tag_create(
sc->alc_cdata.alc_parent_tag,
ALC_CMB_ALIGN, 0,
BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR,
ALC_CMB_SZ,
1,
ALC_CMB_SZ,
0,
&sc->alc_cdata.alc_cmb_tag);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create CMB DMA tag.\n");
goto fail;
}
error = bus_dma_tag_create(
sc->alc_cdata.alc_parent_tag,
ALC_SMB_ALIGN, 0,
BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR,
ALC_SMB_SZ,
1,
ALC_SMB_SZ,
0,
&sc->alc_cdata.alc_smb_tag);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create SMB DMA tag.\n");
goto fail;
}
error = bus_dmamem_alloc(sc->alc_cdata.alc_tx_ring_tag,
(void **)&sc->alc_rdata.alc_tx_ring,
BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT,
&sc->alc_cdata.alc_tx_ring_map);
if (error != 0) {
device_printf(sc->alc_dev,
"could not allocate DMA'able memory for Tx ring.\n");
goto fail;
}
ctx.alc_busaddr = 0;
error = bus_dmamap_load(sc->alc_cdata.alc_tx_ring_tag,
sc->alc_cdata.alc_tx_ring_map, sc->alc_rdata.alc_tx_ring,
ALC_TX_RING_SZ, alc_dmamap_cb, &ctx, 0);
if (error != 0 || ctx.alc_busaddr == 0) {
device_printf(sc->alc_dev,
"could not load DMA'able memory for Tx ring.\n");
goto fail;
}
sc->alc_rdata.alc_tx_ring_paddr = ctx.alc_busaddr;
error = bus_dmamem_alloc(sc->alc_cdata.alc_rx_ring_tag,
(void **)&sc->alc_rdata.alc_rx_ring,
BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT,
&sc->alc_cdata.alc_rx_ring_map);
if (error != 0) {
device_printf(sc->alc_dev,
"could not allocate DMA'able memory for Rx ring.\n");
goto fail;
}
ctx.alc_busaddr = 0;
error = bus_dmamap_load(sc->alc_cdata.alc_rx_ring_tag,
sc->alc_cdata.alc_rx_ring_map, sc->alc_rdata.alc_rx_ring,
ALC_RX_RING_SZ, alc_dmamap_cb, &ctx, 0);
if (error != 0 || ctx.alc_busaddr == 0) {
device_printf(sc->alc_dev,
"could not load DMA'able memory for Rx ring.\n");
goto fail;
}
sc->alc_rdata.alc_rx_ring_paddr = ctx.alc_busaddr;
error = bus_dmamem_alloc(sc->alc_cdata.alc_rr_ring_tag,
(void **)&sc->alc_rdata.alc_rr_ring,
BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT,
&sc->alc_cdata.alc_rr_ring_map);
if (error != 0) {
device_printf(sc->alc_dev,
"could not allocate DMA'able memory for Rx return ring.\n");
goto fail;
}
ctx.alc_busaddr = 0;
error = bus_dmamap_load(sc->alc_cdata.alc_rr_ring_tag,
sc->alc_cdata.alc_rr_ring_map, sc->alc_rdata.alc_rr_ring,
ALC_RR_RING_SZ, alc_dmamap_cb, &ctx, 0);
if (error != 0 || ctx.alc_busaddr == 0) {
device_printf(sc->alc_dev,
"could not load DMA'able memory for Tx ring.\n");
goto fail;
}
sc->alc_rdata.alc_rr_ring_paddr = ctx.alc_busaddr;
error = bus_dmamem_alloc(sc->alc_cdata.alc_cmb_tag,
(void **)&sc->alc_rdata.alc_cmb,
BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT,
&sc->alc_cdata.alc_cmb_map);
if (error != 0) {
device_printf(sc->alc_dev,
"could not allocate DMA'able memory for CMB.\n");
goto fail;
}
ctx.alc_busaddr = 0;
error = bus_dmamap_load(sc->alc_cdata.alc_cmb_tag,
sc->alc_cdata.alc_cmb_map, sc->alc_rdata.alc_cmb,
ALC_CMB_SZ, alc_dmamap_cb, &ctx, 0);
if (error != 0 || ctx.alc_busaddr == 0) {
device_printf(sc->alc_dev,
"could not load DMA'able memory for CMB.\n");
goto fail;
}
sc->alc_rdata.alc_cmb_paddr = ctx.alc_busaddr;
error = bus_dmamem_alloc(sc->alc_cdata.alc_smb_tag,
(void **)&sc->alc_rdata.alc_smb,
BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT,
&sc->alc_cdata.alc_smb_map);
if (error != 0) {
device_printf(sc->alc_dev,
"could not allocate DMA'able memory for SMB.\n");
goto fail;
}
ctx.alc_busaddr = 0;
error = bus_dmamap_load(sc->alc_cdata.alc_smb_tag,
sc->alc_cdata.alc_smb_map, sc->alc_rdata.alc_smb,
ALC_SMB_SZ, alc_dmamap_cb, &ctx, 0);
if (error != 0 || ctx.alc_busaddr == 0) {
device_printf(sc->alc_dev,
"could not load DMA'able memory for CMB.\n");
goto fail;
}
sc->alc_rdata.alc_smb_paddr = ctx.alc_busaddr;
#ifdef foo
if ((error = alc_check_boundary(sc)) != 0) {
device_printf(sc->alc_dev, "4GB boundary crossed, "
"switching to 32bit DMA addressing mode.\n");
alc_dma_free(sc);
lowaddr = BUS_SPACE_MAXADDR_32BIT;
goto again;
}
#endif
error = bus_dma_tag_create(
sc->alc_cdata.alc_parent_tag,
1, 0,
BUS_SPACE_MAXADDR,
BUS_SPACE_MAXADDR,
BUS_SPACE_MAXSIZE_32BIT,
0,
BUS_SPACE_MAXSIZE_32BIT,
0,
&sc->alc_cdata.alc_buffer_tag);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create parent buffer DMA tag.\n");
goto fail;
}
error = bus_dma_tag_create(
sc->alc_cdata.alc_buffer_tag,
1, 0,
BUS_SPACE_MAXADDR,
BUS_SPACE_MAXADDR,
ALC_TSO_MAXSIZE,
ALC_MAXTXSEGS,
ALC_TSO_MAXSEGSIZE,
BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
&sc->alc_cdata.alc_tx_tag);
if (error != 0) {
device_printf(sc->alc_dev, "could not create Tx DMA tag.\n");
goto fail;
}
error = bus_dma_tag_create(
sc->alc_cdata.alc_buffer_tag,
ALC_RX_BUF_ALIGN, 0,
BUS_SPACE_MAXADDR,
BUS_SPACE_MAXADDR,
MCLBYTES,
1,
MCLBYTES,
BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW | BUS_DMA_ALIGNED,
&sc->alc_cdata.alc_rx_tag);
if (error != 0) {
device_printf(sc->alc_dev, "could not create Rx DMA tag.\n");
goto fail;
}
for (i = 0; i < ALC_TX_RING_CNT; i++) {
txd = &sc->alc_cdata.alc_txdesc[i];
txd->tx_m = NULL;
txd->tx_dmamap = NULL;
error = bus_dmamap_create(sc->alc_cdata.alc_tx_tag,
BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
&txd->tx_dmamap);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create Tx dmamap.\n");
goto fail;
}
}
error = bus_dmamap_create(sc->alc_cdata.alc_rx_tag,
BUS_DMA_WAITOK,
&sc->alc_cdata.alc_rx_sparemap);
if (error) {
device_printf(sc->alc_dev,
"could not create spare Rx dmamap.\n");
goto fail;
}
for (i = 0; i < ALC_RX_RING_CNT; i++) {
rxd = &sc->alc_cdata.alc_rxdesc[i];
rxd->rx_m = NULL;
rxd->rx_dmamap = NULL;
error = bus_dmamap_create(sc->alc_cdata.alc_rx_tag,
BUS_DMA_WAITOK,
&rxd->rx_dmamap);
if (error != 0) {
device_printf(sc->alc_dev,
"could not create Rx dmamap.\n");
goto fail;
}
}
fail:
return (error);
}
static void
alc_dma_free(struct alc_softc *sc)
{
struct alc_txdesc *txd;
struct alc_rxdesc *rxd;
int i;
if (sc->alc_cdata.alc_tx_tag != NULL) {
for (i = 0; i < ALC_TX_RING_CNT; i++) {
txd = &sc->alc_cdata.alc_txdesc[i];
if (txd->tx_dmamap != NULL) {
bus_dmamap_destroy(sc->alc_cdata.alc_tx_tag,
txd->tx_dmamap);
txd->tx_dmamap = NULL;
}
}
bus_dma_tag_destroy(sc->alc_cdata.alc_tx_tag);
sc->alc_cdata.alc_tx_tag = NULL;
}
if (sc->alc_cdata.alc_rx_tag != NULL) {
for (i = 0; i < ALC_RX_RING_CNT; i++) {
rxd = &sc->alc_cdata.alc_rxdesc[i];
if (rxd->rx_dmamap != NULL) {
bus_dmamap_destroy(sc->alc_cdata.alc_rx_tag,
rxd->rx_dmamap);
rxd->rx_dmamap = NULL;
}
}
if (sc->alc_cdata.alc_rx_sparemap != NULL) {
bus_dmamap_destroy(sc->alc_cdata.alc_rx_tag,
sc->alc_cdata.alc_rx_sparemap);
sc->alc_cdata.alc_rx_sparemap = NULL;
}
bus_dma_tag_destroy(sc->alc_cdata.alc_rx_tag);
sc->alc_cdata.alc_rx_tag = NULL;
}
if (sc->alc_cdata.alc_tx_ring_tag != 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_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;
}
if (sc->alc_cdata.alc_rx_ring_tag != 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_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;
}
if (sc->alc_cdata.alc_rr_ring_tag != 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_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;
}
if (sc->alc_cdata.alc_cmb_tag != 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_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_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;
}
if (sc->alc_cdata.alc_smb_tag != 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_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;
}
if (sc->alc_cdata.alc_buffer_tag != NULL) {
bus_dma_tag_destroy(sc->alc_cdata.alc_buffer_tag);
sc->alc_cdata.alc_buffer_tag = NULL;
}
if (sc->alc_cdata.alc_parent_tag != NULL) {
bus_dma_tag_destroy(sc->alc_cdata.alc_parent_tag);
sc->alc_cdata.alc_parent_tag = NULL;
}
}
static int
alc_shutdown(device_t dev)
{
return (alc_suspend(dev));
}
#if 0
static void
alc_setlinkspeed(struct alc_softc *sc)
{
struct mii_data *mii;
int aneg, i;
mii = device_get_softc(sc->alc_miibus);
mii_pollstat(mii);
aneg = 0;
if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
(IFM_ACTIVE | IFM_AVALID)) {
switch IFM_SUBTYPE(mii->mii_media_active) {
case IFM_10_T:
case IFM_100_TX:
return;
case IFM_1000_T:
aneg++;
break;
default:
break;
}
}
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr, MII_100T2CR, 0);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
MII_ANAR, ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10 | ANAR_CSMA);
alc_miibus_writereg(sc->alc_dev, sc->alc_phyaddr,
MII_BMCR, BMCR_RESET | BMCR_AUTOEN | BMCR_STARTNEG);
DELAY(1000);
if (aneg != 0) {
for (i = 0; i < MII_ANEGTICKS_GIGE; i++) {
mii_pollstat(mii);
if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID))
== (IFM_ACTIVE | IFM_AVALID)) {
switch (IFM_SUBTYPE(
mii->mii_media_active)) {
case IFM_10_T:
case IFM_100_TX:
alc_mac_config(sc);
return;
default:
break;
}
}
ALC_UNLOCK(sc);
pause("alclnk", hz);
ALC_LOCK(sc);
}
if (i == MII_ANEGTICKS_GIGE)
device_printf(sc->alc_dev,
"establishing a link failed, WOL may not work!");
}
mii->mii_media_status = IFM_AVALID | IFM_ACTIVE;
mii->mii_media_active = IFM_ETHER | IFM_100_TX | IFM_FDX;
alc_mac_config(sc);
}
#endif
static int
alc_suspend(device_t dev)
{
struct alc_softc *sc = device_get_softc(dev);
struct ifnet *ifp = &sc->arpcom.ac_if;
lwkt_serialize_enter(ifp->if_serializer);
alc_stop(sc);
#if 0
alc_setwol(sc);
#endif
lwkt_serialize_exit(ifp->if_serializer);
return (0);
}
static int
alc_resume(device_t dev)
{
struct alc_softc *sc = device_get_softc(dev);
struct ifnet *ifp = &sc->arpcom.ac_if;
uint16_t pmstat;
lwkt_serialize_enter(ifp->if_serializer);
if ((sc->alc_flags & ALC_FLAG_PM) != 0) {
pmstat = pci_read_config(sc->alc_dev,
sc->alc_pmcap + PCIR_POWER_STATUS, 2);
if ((pmstat & PCIM_PSTAT_PMEENABLE) != 0) {
pmstat &= ~PCIM_PSTAT_PMEENABLE;
pci_write_config(sc->alc_dev,
sc->alc_pmcap + PCIR_POWER_STATUS, pmstat, 2);
}
}
alc_phy_reset(sc);
if (ifp->if_flags & IFF_UP)
alc_init(sc);
lwkt_serialize_exit(ifp->if_serializer);
return (0);
}
static int
alc_encap(struct alc_softc *sc, struct mbuf **m_head)
{
struct alc_txdesc *txd, *txd_last;
struct tx_desc *desc;
struct mbuf *m;
struct ip *ip;
struct tcphdr *tcp;
bus_dma_segment_t txsegs[ALC_MAXTXSEGS];
bus_dmamap_t map;
uint32_t cflags, hdrlen, ip_off, poff, vtag;
int error, idx, nsegs, prod;
M_ASSERTPKTHDR((*m_head));
m = *m_head;
ip = NULL;
tcp = NULL;
ip_off = poff = 0;
if ((m->m_pkthdr.csum_flags & (ALC_CSUM_FEATURES | CSUM_TSO)) != 0) {
struct ether_header *eh;
if (M_WRITABLE(m) == 0) {
m = m_dup(*m_head, M_NOWAIT);
m_freem(*m_head);
if (m == NULL) {
*m_head = NULL;
return (ENOBUFS);
}
*m_head = m;
}
ip_off = sizeof(struct ether_header);
m = m_pullup(m, ip_off + sizeof(struct ip));
if (m == NULL) {
*m_head = NULL;
return (ENOBUFS);
}
eh = mtod(m, struct ether_header *);
if (eh->ether_type == htons(ETHERTYPE_VLAN)) {
ip_off = sizeof(struct ether_vlan_header);
m = m_pullup(m, ip_off);
if (m == NULL) {
*m_head = NULL;
return (ENOBUFS);
}
}
m = m_pullup(m, ip_off + sizeof(struct ip));
if (m == NULL) {
*m_head = NULL;
return (ENOBUFS);
}
ip = (struct ip *)(mtod(m, char *) + ip_off);
poff = ip_off + (ip->ip_hl << 2);
if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) {
m = m_pullup(m, poff + sizeof(struct tcphdr));
if (m == NULL) {
*m_head = NULL;
return (ENOBUFS);
}
tcp = (struct tcphdr *)(mtod(m, char *) + poff);
m = m_pullup(m, poff + (tcp->th_off << 2));
if (m == NULL) {
*m_head = NULL;
return (ENOBUFS);
}
ip = (struct ip *)(mtod(m, char *) + ip_off);
tcp = (struct tcphdr *)(mtod(m, char *) + poff);
ip->ip_sum = 0;
tcp->th_sum = in_pseudo(ip->ip_src.s_addr,
ip->ip_dst.s_addr, htons(IPPROTO_TCP));
}
*m_head = m;
}
prod = sc->alc_cdata.alc_tx_prod;
txd = &sc->alc_cdata.alc_txdesc[prod];
txd_last = txd;
map = txd->tx_dmamap;
error = bus_dmamap_load_mbuf_defrag(
sc->alc_cdata.alc_tx_tag, map, m_head,
txsegs, ALC_MAXTXSEGS, &nsegs, BUS_DMA_NOWAIT);
if (error) {
m_freem(*m_head);
*m_head = NULL;
return (error);
}
if (nsegs == 0) {
m_freem(*m_head);
*m_head = NULL;
return (EIO);
}
if (sc->alc_cdata.alc_tx_cnt + nsegs >= ALC_TX_RING_CNT - 3) {
bus_dmamap_unload(sc->alc_cdata.alc_tx_tag, map);
return (ENOBUFS);
}
bus_dmamap_sync(sc->alc_cdata.alc_tx_tag, map, BUS_DMASYNC_PREWRITE);
m = *m_head;
cflags = TD_ETHERNET;
vtag = 0;
desc = NULL;
idx = 0;
if ((m->m_flags & M_VLANTAG) != 0) {
vtag = htons(m->m_pkthdr.ether_vlantag);
vtag = (vtag << TD_VLAN_SHIFT) & TD_VLAN_MASK;
cflags |= TD_INS_VLAN_TAG;
}
if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) {
cflags |= TD_TSO | TD_TSO_DESCV1;
cflags |= ((uint32_t)m->m_pkthdr.tso_segsz << TD_MSS_SHIFT) &
TD_MSS_MASK;
cflags |= (poff << TD_TCPHDR_OFFSET_SHIFT) &
TD_TCPHDR_OFFSET_MASK;
hdrlen = poff + (tcp->th_off << 2);
desc = &sc->alc_rdata.alc_tx_ring[prod];
desc->len = htole32(TX_BYTES(hdrlen | vtag));
desc->flags = htole32(cflags);
desc->addr = htole64(txsegs[0].ds_addr);
sc->alc_cdata.alc_tx_cnt++;
ALC_DESC_INC(prod, ALC_TX_RING_CNT);
if (m->m_len - hdrlen > 0) {
desc = &sc->alc_rdata.alc_tx_ring[prod];
desc->len = htole32(TX_BYTES((m->m_len - hdrlen) |
vtag));
desc->flags = htole32(cflags);
desc->addr = htole64(txsegs[0].ds_addr + hdrlen);
sc->alc_cdata.alc_tx_cnt++;
ALC_DESC_INC(prod, ALC_TX_RING_CNT);
}
idx = 1;
} else if ((m->m_pkthdr.csum_flags & ALC_CSUM_FEATURES) != 0) {
#ifdef ALC_USE_CUSTOM_CSUM
cflags |= TD_CUSTOM_CSUM;
cflags |= ((poff >> 1) << TD_PLOAD_OFFSET_SHIFT) &
TD_PLOAD_OFFSET_MASK;
cflags |= (((poff + m->m_pkthdr.csum_data) >> 1) <<
TD_CUSTOM_CSUM_OFFSET_SHIFT) & TD_CUSTOM_CSUM_OFFSET_MASK;
#else
if ((m->m_pkthdr.csum_flags & CSUM_IP) != 0)
cflags |= TD_IPCSUM;
if ((m->m_pkthdr.csum_flags & CSUM_TCP) != 0)
cflags |= TD_TCPCSUM;
if ((m->m_pkthdr.csum_flags & CSUM_UDP) != 0)
cflags |= TD_UDPCSUM;
cflags |= (poff << TD_L4HDR_OFFSET_SHIFT) &
TD_L4HDR_OFFSET_MASK;
#endif
}
for (; idx < nsegs; idx++) {
desc = &sc->alc_rdata.alc_tx_ring[prod];
desc->len = htole32(TX_BYTES(txsegs[idx].ds_len) | vtag);
desc->flags = htole32(cflags);
desc->addr = htole64(txsegs[idx].ds_addr);
sc->alc_cdata.alc_tx_cnt++;
ALC_DESC_INC(prod, ALC_TX_RING_CNT);
}
sc->alc_cdata.alc_tx_prod = prod;
prod = (prod + ALC_TX_RING_CNT - 1) % ALC_TX_RING_CNT;
desc = &sc->alc_rdata.alc_tx_ring[prod];
desc->flags |= htole32(TD_EOP);
txd = &sc->alc_cdata.alc_txdesc[prod];
map = txd_last->tx_dmamap;
txd_last->tx_dmamap = txd->tx_dmamap;
txd->tx_dmamap = map;
txd->tx_m = m;
return (0);
}
static void
alc_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
{
struct alc_softc *sc = ifp->if_softc;
struct mbuf *m_head;
int enq;
ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
ASSERT_SERIALIZED(ifp->if_serializer);
if (sc->alc_cdata.alc_tx_cnt >= ALC_TX_DESC_HIWAT)
alc_txeof(sc);
if ((ifp->if_flags & IFF_RUNNING) == 0 || ifq_is_oactive(&ifp->if_snd))
return;
if ((sc->alc_flags & ALC_FLAG_LINK) == 0) {
ifq_purge(&ifp->if_snd);
return;
}
for (enq = 0; !ifq_is_empty(&ifp->if_snd); ) {
m_head = ifq_dequeue(&ifp->if_snd);
if (m_head == NULL)
break;
if (alc_encap(sc, &m_head)) {
if (m_head == NULL)
break;
ifq_prepend(&ifp->if_snd, m_head);
ifq_set_oactive(&ifp->if_snd);
break;
}
enq++;
ETHER_BPF_MTAP(ifp, m_head);
}
if (enq > 0) {
bus_dmamap_sync(sc->alc_cdata.alc_tx_ring_tag,
sc->alc_cdata.alc_tx_ring_map, BUS_DMASYNC_PREWRITE);
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);
sc->alc_watchdog_timer = ALC_TX_TIMEOUT;
}
}
static void
alc_watchdog(struct alc_softc *sc)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
ASSERT_SERIALIZED(ifp->if_serializer);
if (sc->alc_watchdog_timer == 0 || --sc->alc_watchdog_timer)
return;
if ((sc->alc_flags & ALC_FLAG_LINK) == 0) {
if_printf(sc->alc_ifp, "watchdog timeout (lost link)\n");
IFNET_STAT_INC(ifp, oerrors, 1);
alc_init(sc);
return;
}
if_printf(sc->alc_ifp, "watchdog timeout -- resetting\n");
IFNET_STAT_INC(ifp, oerrors, 1);
alc_init(sc);
if (!ifq_is_empty(&ifp->if_snd))
if_devstart(ifp);
}
static int
alc_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
{
struct alc_softc *sc;
struct ifreq *ifr;
struct mii_data *mii;
int error, mask;
ASSERT_SERIALIZED(ifp->if_serializer);
sc = ifp->if_softc;
ifr = (struct ifreq *)data;
error = 0;
switch (cmd) {
case SIOCSIFMTU:
if (ifr->ifr_mtu < ETHERMIN ||
ifr->ifr_mtu > (sc->alc_ident->max_framelen -
sizeof(struct ether_vlan_header) - ETHER_CRC_LEN) ||
((sc->alc_flags & ALC_FLAG_JUMBO) == 0 &&
ifr->ifr_mtu > ETHERMTU)) {
error = EINVAL;
} else if (ifp->if_mtu != ifr->ifr_mtu) {
ifp->if_mtu = ifr->ifr_mtu;
#if 0
if (ifp->if_mtu > ALC_TSO_MTU &&
(ifp->if_capenable & IFCAP_TSO4) != 0) {
ifp->if_capenable &= ~IFCAP_TSO4;
ifp->if_hwassist &= ~CSUM_TSO;
}
#endif
}
break;
case SIOCSIFFLAGS:
if ((ifp->if_flags & IFF_UP) != 0) {
if ((ifp->if_flags & IFF_RUNNING) != 0 &&
((ifp->if_flags ^ sc->alc_if_flags) &
(IFF_PROMISC | IFF_ALLMULTI)) != 0)
alc_rxfilter(sc);
else if ((ifp->if_flags & IFF_RUNNING) == 0)
alc_init(sc);
} else if ((ifp->if_flags & IFF_RUNNING) != 0)
alc_stop(sc);
sc->alc_if_flags = ifp->if_flags;
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
if ((ifp->if_flags & IFF_RUNNING) != 0)
alc_rxfilter(sc);
break;
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
mii = device_get_softc(sc->alc_miibus);
error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd);
break;
case SIOCSIFCAP:
mask = ifr->ifr_reqcap ^ ifp->if_capenable;
if ((mask & IFCAP_TXCSUM) != 0 &&
(ifp->if_capabilities & IFCAP_TXCSUM) != 0) {
ifp->if_capenable ^= IFCAP_TXCSUM;
if ((ifp->if_capenable & IFCAP_TXCSUM) != 0)
ifp->if_hwassist |= ALC_CSUM_FEATURES;
else
ifp->if_hwassist &= ~ALC_CSUM_FEATURES;
}
#if 0
if ((mask & IFCAP_WOL_MCAST) != 0 &&
(ifp->if_capabilities & IFCAP_WOL_MCAST) != 0)
ifp->if_capenable ^= IFCAP_WOL_MCAST;
if ((mask & IFCAP_WOL_MAGIC) != 0 &&
(ifp->if_capabilities & IFCAP_WOL_MAGIC) != 0)
ifp->if_capenable ^= IFCAP_WOL_MAGIC;
#endif
if ((mask & IFCAP_VLAN_HWTAGGING) != 0 &&
(ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) != 0) {
ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
alc_rxvlan(sc);
}
if ((mask & IFCAP_VLAN_HWCSUM) != 0 &&
(ifp->if_capabilities & IFCAP_VLAN_HWCSUM) != 0)
ifp->if_capenable ^= IFCAP_VLAN_HWCSUM;
if ((ifp->if_capenable & IFCAP_TXCSUM) == 0)
ifp->if_capenable &= ~IFCAP_VLAN_HWCSUM;
if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) == 0)
ifp->if_capenable &= ~IFCAP_VLAN_HWCSUM;
break;
default:
error = ether_ioctl(ifp, cmd, data);
break;
}
return (error);
}
static void
alc_mac_config(struct alc_softc *sc)
{
struct mii_data *mii;
uint32_t reg;
mii = device_get_softc(sc->alc_miibus);
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_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;
}
switch (IFM_SUBTYPE(mii->mii_media_active)) {
case IFM_10_T:
case IFM_100_TX:
reg |= MAC_CFG_SPEED_10_100;
break;
case IFM_1000_T:
reg |= MAC_CFG_SPEED_1000;
break;
}
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
reg |= MAC_CFG_FULL_DUPLEX;
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0)
reg |= MAC_CFG_TX_FC;
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0)
reg |= MAC_CFG_RX_FC;
}
CSR_WRITE_4(sc, ALC_MAC_CFG, reg);
}
static void
alc_stats_clear(struct alc_softc *sc)
{
struct smb sb, *smb;
uint32_t *reg;
int i;
if ((sc->alc_flags & ALC_FLAG_SMB_BUG) == 0) {
bus_dmamap_sync(sc->alc_cdata.alc_smb_tag,
sc->alc_cdata.alc_smb_map,
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
smb = sc->alc_rdata.alc_smb;
smb->updated = 0;
bus_dmamap_sync(sc->alc_cdata.alc_smb_tag,
sc->alc_cdata.alc_smb_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
} else {
for (reg = &sb.rx_frames, i = 0; reg <= &sb.rx_pkts_filtered;
reg++) {
CSR_READ_4(sc, ALC_RX_MIB_BASE + i);
i += sizeof(uint32_t);
}
for (reg = &sb.tx_frames, i = 0; reg <= &sb.tx_mcast_bytes;
reg++) {
CSR_READ_4(sc, ALC_TX_MIB_BASE + i);
i += sizeof(uint32_t);
}
}
}
static void
alc_stats_update(struct alc_softc *sc)
{
struct alc_hw_stats *stat;
struct smb sb, *smb;
struct ifnet *ifp;
uint32_t *reg;
int i;
ifp = sc->alc_ifp;
stat = &sc->alc_stats;
if ((sc->alc_flags & ALC_FLAG_SMB_BUG) == 0) {
bus_dmamap_sync(sc->alc_cdata.alc_smb_tag,
sc->alc_cdata.alc_smb_map,
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
smb = sc->alc_rdata.alc_smb;
if (smb->updated == 0)
return;
} else {
smb = &sb;
for (reg = &sb.rx_frames, i = 0; reg <= &sb.rx_pkts_filtered;
reg++) {
*reg = CSR_READ_4(sc, ALC_RX_MIB_BASE + i);
i += sizeof(uint32_t);
}
for (reg = &sb.tx_frames, i = 0; reg <= &sb.tx_mcast_bytes;
reg++) {
*reg = CSR_READ_4(sc, ALC_TX_MIB_BASE + i);
i += sizeof(uint32_t);
}
}
stat->rx_frames += smb->rx_frames;
stat->rx_bcast_frames += smb->rx_bcast_frames;
stat->rx_mcast_frames += smb->rx_mcast_frames;
stat->rx_pause_frames += smb->rx_pause_frames;
stat->rx_control_frames += smb->rx_control_frames;
stat->rx_crcerrs += smb->rx_crcerrs;
stat->rx_lenerrs += smb->rx_lenerrs;
stat->rx_bytes += smb->rx_bytes;
stat->rx_runts += smb->rx_runts;
stat->rx_fragments += smb->rx_fragments;
stat->rx_pkts_64 += smb->rx_pkts_64;
stat->rx_pkts_65_127 += smb->rx_pkts_65_127;
stat->rx_pkts_128_255 += smb->rx_pkts_128_255;
stat->rx_pkts_256_511 += smb->rx_pkts_256_511;
stat->rx_pkts_512_1023 += smb->rx_pkts_512_1023;
stat->rx_pkts_1024_1518 += smb->rx_pkts_1024_1518;
stat->rx_pkts_1519_max += smb->rx_pkts_1519_max;
stat->rx_pkts_truncated += smb->rx_pkts_truncated;
stat->rx_fifo_oflows += smb->rx_fifo_oflows;
stat->rx_rrs_errs += smb->rx_rrs_errs;
stat->rx_alignerrs += smb->rx_alignerrs;
stat->rx_bcast_bytes += smb->rx_bcast_bytes;
stat->rx_mcast_bytes += smb->rx_mcast_bytes;
stat->rx_pkts_filtered += smb->rx_pkts_filtered;
stat->tx_frames += smb->tx_frames;
stat->tx_bcast_frames += smb->tx_bcast_frames;
stat->tx_mcast_frames += smb->tx_mcast_frames;
stat->tx_pause_frames += smb->tx_pause_frames;
stat->tx_excess_defer += smb->tx_excess_defer;
stat->tx_control_frames += smb->tx_control_frames;
stat->tx_deferred += smb->tx_deferred;
stat->tx_bytes += smb->tx_bytes;
stat->tx_pkts_64 += smb->tx_pkts_64;
stat->tx_pkts_65_127 += smb->tx_pkts_65_127;
stat->tx_pkts_128_255 += smb->tx_pkts_128_255;
stat->tx_pkts_256_511 += smb->tx_pkts_256_511;
stat->tx_pkts_512_1023 += smb->tx_pkts_512_1023;
stat->tx_pkts_1024_1518 += smb->tx_pkts_1024_1518;
stat->tx_pkts_1519_max += smb->tx_pkts_1519_max;
stat->tx_single_colls += smb->tx_single_colls;
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_underrun += smb->tx_underrun;
stat->tx_desc_underrun += smb->tx_desc_underrun;
stat->tx_lenerrs += smb->tx_lenerrs;
stat->tx_pkts_truncated += smb->tx_pkts_truncated;
stat->tx_bcast_bytes += smb->tx_bcast_bytes;
stat->tx_mcast_bytes += smb->tx_mcast_bytes;
IFNET_STAT_INC(ifp, opackets, smb->tx_frames);
IFNET_STAT_INC(ifp, collisions, smb->tx_single_colls +
smb->tx_multi_colls * 2 + smb->tx_late_colls +
smb->tx_excess_colls * HDPX_CFG_RETRY_DEFAULT);
IFNET_STAT_INC(ifp, oerrors,
smb->tx_excess_colls + smb->tx_late_colls + smb->tx_underrun);
IFNET_STAT_INC(ifp, ipackets, smb->rx_frames);
IFNET_STAT_INC(ifp, 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);
if ((sc->alc_flags & ALC_FLAG_SMB_BUG) == 0) {
smb->updated = 0;
bus_dmamap_sync(sc->alc_cdata.alc_smb_tag,
sc->alc_cdata.alc_smb_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
}
}
static void
alc_intr(void *arg)
{
struct alc_softc *sc = arg;
struct ifnet *ifp = &sc->arpcom.ac_if;
uint32_t status;
ASSERT_SERIALIZED(ifp->if_serializer);
status = CSR_READ_4(sc, ALC_INTR_STATUS);
if ((status & ALC_INTRS) == 0)
return;
CSR_WRITE_4(sc, ALC_INTR_STATUS, status | INTR_DIS_INT);
if (ifp->if_flags & IFF_RUNNING) {
if (status & INTR_RX_PKT) {
if (alc_rxintr(sc)) {
alc_init(sc);
return;
}
}
if (status & (INTR_DMA_RD_TO_RST | INTR_DMA_WR_TO_RST |
INTR_TXQ_TO_RST)) {
if (status & INTR_DMA_RD_TO_RST) {
if_printf(ifp,
"DMA read error! -- resetting\n");
}
if (status & INTR_DMA_WR_TO_RST) {
if_printf(ifp,
"DMA write error! -- resetting\n");
}
if (status & INTR_TXQ_TO_RST)
if_printf(ifp, "TxQ reset! -- resetting\n");
alc_init(sc);
return;
}
if (!ifq_is_empty(&ifp->if_snd))
if_devstart(ifp);
CSR_WRITE_4(sc, ALC_INTR_STATUS, 0x7FFFFFFF);
}
}
static void
alc_txeof(struct alc_softc *sc)
{
struct ifnet *ifp;
struct alc_txdesc *txd;
uint32_t cons, prod;
int prog;
ifp = sc->alc_ifp;
if (sc->alc_cdata.alc_tx_cnt == 0)
return;
bus_dmamap_sync(sc->alc_cdata.alc_tx_ring_tag,
sc->alc_cdata.alc_tx_ring_map, BUS_DMASYNC_POSTWRITE);
if ((sc->alc_flags & ALC_FLAG_CMB_BUG) == 0) {
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 {
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);
prod = (prod & MBOX_TD_CONS_LO_IDX_MASK) >>
MBOX_TD_CONS_LO_IDX_SHIFT;
}
}
cons = sc->alc_cdata.alc_tx_cons;
for (prog = 0; cons != prod; prog++,
ALC_DESC_INC(cons, ALC_TX_RING_CNT)) {
if (sc->alc_cdata.alc_tx_cnt <= 0)
break;
prog++;
ifq_clr_oactive(&ifp->if_snd);
sc->alc_cdata.alc_tx_cnt--;
txd = &sc->alc_cdata.alc_txdesc[cons];
if (txd->tx_m != NULL) {
bus_dmamap_sync(sc->alc_cdata.alc_tx_tag,
txd->tx_dmamap, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->alc_cdata.alc_tx_tag,
txd->tx_dmamap);
m_freem(txd->tx_m);
txd->tx_m = NULL;
}
}
if ((sc->alc_flags & ALC_FLAG_CMB_BUG) == 0)
bus_dmamap_sync(sc->alc_cdata.alc_cmb_tag,
sc->alc_cdata.alc_cmb_map, BUS_DMASYNC_PREREAD);
sc->alc_cdata.alc_tx_cons = cons;
if (sc->alc_cdata.alc_tx_cnt == 0)
sc->alc_watchdog_timer = 0;
}
static int
alc_newbuf(struct alc_softc *sc, struct alc_rxdesc *rxd, boolean_t wait)
{
struct mbuf *m;
bus_dma_segment_t segs[1];
bus_dmamap_t map;
int nsegs;
int error;
m = m_getcl(wait ? M_WAITOK : M_NOWAIT, MT_DATA, M_PKTHDR);
if (m == NULL)
return (ENOBUFS);
m->m_len = m->m_pkthdr.len = MCLBYTES;
#ifdef foo
m_adj(m, ETHER_ALIGN);
#endif
error = bus_dmamap_load_mbuf_segment(
sc->alc_cdata.alc_rx_tag,
sc->alc_cdata.alc_rx_sparemap,
m, segs, 1, &nsegs, BUS_DMA_NOWAIT);
if (error) {
m_freem(m);
return (ENOBUFS);
}
KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
if (rxd->rx_m != NULL) {
bus_dmamap_sync(sc->alc_cdata.alc_rx_tag, rxd->rx_dmamap,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->alc_cdata.alc_rx_tag, rxd->rx_dmamap);
}
map = rxd->rx_dmamap;
rxd->rx_dmamap = sc->alc_cdata.alc_rx_sparemap;
sc->alc_cdata.alc_rx_sparemap = map;
bus_dmamap_sync(sc->alc_cdata.alc_rx_tag, rxd->rx_dmamap,
BUS_DMASYNC_PREREAD);
rxd->rx_m = m;
rxd->rx_desc->addr = htole64(segs[0].ds_addr);
return (0);
}
static int
alc_rxintr(struct alc_softc *sc)
{
struct ifnet *ifp;
struct rx_rdesc *rrd;
uint32_t nsegs, status;
int rr_cons, prog;
bus_dmamap_sync(sc->alc_cdata.alc_rr_ring_tag,
sc->alc_cdata.alc_rr_ring_map,
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
bus_dmamap_sync(sc->alc_cdata.alc_rx_ring_tag,
sc->alc_cdata.alc_rx_ring_map, BUS_DMASYNC_POSTWRITE);
rr_cons = sc->alc_cdata.alc_rr_cons;
ifp = sc->alc_ifp;
for (prog = 0; (ifp->if_flags & IFF_RUNNING) != 0;) {
rrd = &sc->alc_rdata.alc_rr_ring[rr_cons];
status = le32toh(rrd->status);
if ((status & RRD_VALID) == 0)
break;
nsegs = RRD_RD_CNT(le32toh(rrd->rdinfo));
if (nsegs == 0) {
device_printf(sc->alc_dev,
"unexpected segment count -- resetting\n");
return (EIO);
}
alc_rxeof(sc, rrd);
rrd->status = 0;
ALC_DESC_INC(rr_cons, ALC_RR_RING_CNT);
sc->alc_cdata.alc_rx_cons += nsegs;
sc->alc_cdata.alc_rx_cons %= ALC_RR_RING_CNT;
prog += nsegs;
}
if (prog > 0) {
sc->alc_cdata.alc_rr_cons = rr_cons;
bus_dmamap_sync(sc->alc_cdata.alc_rr_ring_tag,
sc->alc_cdata.alc_rr_ring_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
bus_dmamap_sync(sc->alc_cdata.alc_rx_ring_tag,
sc->alc_cdata.alc_rx_ring_map, BUS_DMASYNC_PREWRITE);
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 0;
}
static void
alc_rxeof(struct alc_softc *sc, struct rx_rdesc *rrd)
{
struct alc_rxdesc *rxd;
struct ifnet *ifp;
struct mbuf *mp, *m;
uint32_t rdinfo, status, vtag;
int count, nsegs, rx_cons;
ifp = sc->alc_ifp;
status = le32toh(rrd->status);
rdinfo = le32toh(rrd->rdinfo);
rx_cons = RRD_RD_IDX(rdinfo);
nsegs = RRD_RD_CNT(rdinfo);
sc->alc_cdata.alc_rxlen = RRD_BYTES(status);
if ((status & (RRD_ERR_SUM | RRD_ERR_LENGTH)) != 0) {
status |= RRD_TCP_UDPCSUM_NOK | RRD_IPCSUM_NOK;
if ((status & (RRD_ERR_CRC | RRD_ERR_ALIGN |
RRD_ERR_TRUNC | RRD_ERR_RUNT)) != 0)
return;
}
for (count = 0; count < nsegs; count++,
ALC_DESC_INC(rx_cons, ALC_RX_RING_CNT)) {
rxd = &sc->alc_cdata.alc_rxdesc[rx_cons];
mp = rxd->rx_m;
if (alc_newbuf(sc, rxd, FALSE) != 0) {
IFNET_STAT_INC(ifp, iqdrops, 1);
if (sc->alc_cdata.alc_rxhead != NULL)
m_freem(sc->alc_cdata.alc_rxhead);
break;
}
mp->m_len = sc->alc_buf_size;
if (sc->alc_cdata.alc_rxhead == NULL) {
sc->alc_cdata.alc_rxhead = mp;
sc->alc_cdata.alc_rxtail = mp;
} else {
sc->alc_cdata.alc_rxprev_tail =
sc->alc_cdata.alc_rxtail;
sc->alc_cdata.alc_rxtail->m_next = mp;
sc->alc_cdata.alc_rxtail = mp;
}
if (count == nsegs - 1) {
m = sc->alc_cdata.alc_rxhead;
m->m_pkthdr.len =
sc->alc_cdata.alc_rxlen - ETHER_CRC_LEN;
if (nsegs > 1) {
mp->m_len = sc->alc_cdata.alc_rxlen -
(nsegs - 1) * sc->alc_buf_size;
if (mp->m_len <= ETHER_CRC_LEN) {
sc->alc_cdata.alc_rxtail =
sc->alc_cdata.alc_rxprev_tail;
sc->alc_cdata.alc_rxtail->m_len -=
(ETHER_CRC_LEN - mp->m_len);
sc->alc_cdata.alc_rxtail->m_next = NULL;
m_freem(mp);
} else {
mp->m_len -= ETHER_CRC_LEN;
}
} else
m->m_len = m->m_pkthdr.len;
m->m_pkthdr.rcvif = ifp;
if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0 &&
(status & RRD_VLAN_TAG) != 0) {
vtag = RRD_VLAN(le32toh(rrd->vtag));
m->m_pkthdr.ether_vlantag = ntohs(vtag);
m->m_flags |= M_VLANTAG;
}
ifp->if_input(ifp, m, NULL, -1);
}
}
ALC_RXCHAIN_RESET(sc);
}
static void
alc_tick(void *arg)
{
struct alc_softc *sc = arg;
struct ifnet *ifp = &sc->arpcom.ac_if;
struct mii_data *mii;
lwkt_serialize_enter(ifp->if_serializer);
mii = device_get_softc(sc->alc_miibus);
mii_tick(mii);
alc_stats_update(sc);
alc_txeof(sc);
alc_watchdog(sc);
callout_reset(&sc->alc_tick_ch, hz, alc_tick, sc);
#if 0
alc_intr(sc);
#endif
lwkt_serialize_exit(ifp->if_serializer);
}
static void
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) {
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;
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;
pmcfg = 0;
if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) != 0) {
CSR_WRITE_4(sc, ALC_MBOX_RD0_PROD_IDX, 1);
if (AR816X_REV(sc->alc_rev) <= AR816X_REV_A1 &&
(sc->alc_rev & 0x01) != 0) {
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)
break;
}
if (i == 0)
device_printf(sc->alc_dev, "master reset timeout!\n");
for (i = ALC_RESET_TIMEOUT; i > 0; i--) {
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);
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
alc_init(void *xsc)
{
struct alc_softc *sc = xsc;
struct ifnet *ifp = &sc->arpcom.ac_if;
struct mii_data *mii;
uint8_t eaddr[ETHER_ADDR_LEN];
bus_addr_t paddr;
uint32_t reg, rxf_hi, rxf_lo;
ASSERT_SERIALIZED(ifp->if_serializer);
mii = device_get_softc(sc->alc_miibus);
alc_stop(sc);
alc_reset(sc);
if (alc_init_rx_ring(sc) != 0) {
device_printf(sc->alc_dev, "no memory for Rx buffers.\n");
alc_stop(sc);
return;
}
alc_init_rr_ring(sc);
alc_init_tx_ring(sc);
alc_init_cmb(sc);
alc_init_smb(sc);
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);
bcopy(IF_LLADDR(ifp), eaddr, ETHER_ADDR_LEN);
CSR_WRITE_4(sc, ALC_PAR0,
eaddr[2] << 24 | eaddr[3] << 16 | eaddr[4] << 8 | eaddr[5]);
CSR_WRITE_4(sc, ALC_PAR1, eaddr[0] << 8 | eaddr[1]);
CSR_READ_4(sc, ALC_WOL_CFG);
CSR_WRITE_4(sc, ALC_WOL_CFG, 0);
paddr = sc->alc_rdata.alc_tx_ring_paddr;
CSR_WRITE_4(sc, ALC_TX_BASE_ADDR_HI, ALC_ADDR_HI(paddr));
CSR_WRITE_4(sc, ALC_TDL_HEAD_ADDR_LO, ALC_ADDR_LO(paddr));
CSR_WRITE_4(sc, ALC_TDH_HEAD_ADDR_LO, 0);
CSR_WRITE_4(sc, ALC_TD_RING_CNT,
(ALC_TX_RING_CNT << TD_RING_CNT_SHIFT) & TD_RING_CNT_MASK);
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));
if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
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);
}
CSR_WRITE_4(sc, ALC_RD_RING_CNT,
(ALC_RX_RING_CNT << RD_RING_CNT_SHIFT) & RD_RING_CNT_MASK);
sc->alc_buf_size = RX_BUF_SIZE_MAX;
CSR_WRITE_4(sc, ALC_RX_BUF_SIZE, sc->alc_buf_size);
paddr = sc->alc_rdata.alc_rr_ring_paddr;
CSR_WRITE_4(sc, ALC_RRD0_HEAD_ADDR_LO, ALC_ADDR_LO(paddr));
if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
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);
}
CSR_WRITE_4(sc, ALC_RRD_RING_CNT,
(ALC_RR_RING_CNT << RRD_RING_CNT_SHIFT) & RRD_RING_CNT_MASK);
paddr = sc->alc_rdata.alc_cmb_paddr;
CSR_WRITE_4(sc, ALC_CMB_BASE_ADDR_LO, ALC_ADDR_LO(paddr));
paddr = sc->alc_rdata.alc_smb_paddr;
CSR_WRITE_4(sc, ALC_SMB_BASE_ADDR_HI, ALC_ADDR_HI(paddr));
CSR_WRITE_4(sc, ALC_SMB_BASE_ADDR_LO, ALC_ADDR_LO(paddr));
if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B) {
CSR_WRITE_4(sc, ALC_SRAM_RX_FIFO_LEN, 0x000002A0);
CSR_WRITE_4(sc, ALC_SRAM_TX_FIFO_LEN, 0x00000100);
CSR_WRITE_4(sc, ALC_SRAM_RX_FIFO_ADDR, 0x029F0000);
CSR_WRITE_4(sc, ALC_SRAM_RD0_ADDR, 0x02BF02A0);
CSR_WRITE_4(sc, ALC_SRAM_TX_FIFO_ADDR, 0x03BF02C0);
CSR_WRITE_4(sc, ALC_SRAM_TD_ADDR, 0x03DF03C0);
CSR_WRITE_4(sc, ALC_TXF_WATER_MARK, 0x00000000);
CSR_WRITE_4(sc, ALC_RD_DMA_CFG, 0x00000000);
}
CSR_WRITE_4(sc, ALC_DMA_BLOCK, DMA_BLOCK_LOAD);
reg = ALC_USECS(sc->alc_int_rx_mod) << IM_TIMER_RX_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);
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 ((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);
CSR_WRITE_4(sc, ALC_INTR_RETRIG_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));
}
CSR_WRITE_4(sc, ALC_SMB_STAT_TIMER, ALC_USECS(0));
alc_stats_clear(sc);
CSR_WRITE_4(sc, ALC_FRAME_SIZE, sc->alc_ident->max_framelen);
if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
CSR_WRITE_4(sc, ALC_HDS_CFG, 0);
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));
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));
}
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);
reg = (alc_dma_burst[sc->alc_dma_rd_burst] <<
TXQ_CFG_TX_FIFO_BURST_SHIFT) & TXQ_CFG_TX_FIFO_BURST_MASK;
if (sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B ||
sc->alc_ident->deviceid == DEVICEID_ATHEROS_AR8152_B2) {
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);
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 {
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 = 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;
rxf_lo = (reg * 3) / 10;
CSR_WRITE_4(sc, ALC_RX_FIFO_PAUSE_THRESH,
((rxf_lo << RX_FIFO_PAUSE_THRESH_LO_SHIFT) &
RX_FIFO_PAUSE_THRESH_LO_MASK) |
((rxf_hi << RX_FIFO_PAUSE_THRESH_HI_SHIFT) &
RX_FIFO_PAUSE_THRESH_HI_MASK));
}
if ((sc->alc_flags & ALC_FLAG_AR816X_FAMILY) == 0) {
CSR_WRITE_4(sc, ALC_RSS_IDT_TABLE0, 0);
CSR_WRITE_4(sc, ALC_RSS_CPU, 0);
}
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_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);
reg = DMA_CFG_OUT_ORDER | DMA_CFG_RD_REQ_PRI;
reg |= sc->alc_rcb;
if ((sc->alc_flags & ALC_FLAG_CMB_BUG) == 0)
reg |= DMA_CFG_CMB_ENB;
if ((sc->alc_flags & ALC_FLAG_SMB_BUG) == 0)
reg |= DMA_CFG_SMB_ENB;
else
reg |= DMA_CFG_SMB_DIS;
reg |= (sc->alc_dma_rd_burst & DMA_CFG_RD_BURST_MASK) <<
DMA_CFG_RD_BURST_SHIFT;
reg |= (sc->alc_dma_wr_burst & DMA_CFG_WR_BURST_MASK) <<
DMA_CFG_WR_BURST_SHIFT;
reg |= (DMA_CFG_RD_DELAY_CNT_DEFAULT << DMA_CFG_RD_DELAY_CNT_SHIFT) &
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:
default:
reg |= DMA_CFG_RD_CHNL_SEL_4;
break;
}
}
CSR_WRITE_4(sc, ALC_DMA_CFG, reg);
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_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;
}
if ((sc->alc_flags & ALC_FLAG_FASTETHER) != 0)
reg |= MAC_CFG_SPEED_10_100;
else
reg |= MAC_CFG_SPEED_1000;
CSR_WRITE_4(sc, ALC_MAC_CFG, reg);
alc_rxfilter(sc);
alc_rxvlan(sc);
CSR_WRITE_4(sc, ALC_INTR_MASK, ALC_INTRS);
CSR_WRITE_4(sc, ALC_INTR_STATUS, 0xFFFFFFFF);
CSR_WRITE_4(sc, ALC_INTR_STATUS, 0);
ifp->if_flags |= IFF_RUNNING;
ifq_clr_oactive(&ifp->if_snd);
sc->alc_flags &= ~ALC_FLAG_LINK;
alc_mediachange_locked(sc);
callout_reset(&sc->alc_tick_ch, hz, alc_tick, sc);
}
static void
alc_stop(struct alc_softc *sc)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct alc_txdesc *txd;
struct alc_rxdesc *rxd;
uint32_t reg;
int i;
ASSERT_SERIALIZED(ifp->if_serializer);
ifp->if_flags &= ~IFF_RUNNING;
ifq_clr_oactive(&ifp->if_snd);
sc->alc_flags &= ~ALC_FLAG_LINK;
callout_stop(&sc->alc_tick_ch);
sc->alc_watchdog_timer = 0;
alc_stats_update(sc);
CSR_WRITE_4(sc, ALC_INTR_MASK, 0);
CSR_WRITE_4(sc, ALC_INTR_STATUS, 0xFFFFFFFF);
reg = CSR_READ_4(sc, ALC_DMA_CFG);
reg &= ~(DMA_CFG_CMB_ENB | DMA_CFG_SMB_ENB);
reg |= DMA_CFG_SMB_DIS;
CSR_WRITE_4(sc, ALC_DMA_CFG, reg);
DELAY(1000);
alc_stop_mac(sc);
CSR_WRITE_4(sc, ALC_INTR_STATUS, 0xFFFFFFFF);
alc_aspm(sc, 0, IFM_UNKNOWN);
if (sc->alc_cdata.alc_rxhead != NULL)
m_freem(sc->alc_cdata.alc_rxhead);
ALC_RXCHAIN_RESET(sc);
for (i = 0; i < ALC_RX_RING_CNT; i++) {
rxd = &sc->alc_cdata.alc_rxdesc[i];
if (rxd->rx_m != NULL) {
bus_dmamap_sync(sc->alc_cdata.alc_rx_tag,
rxd->rx_dmamap, BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->alc_cdata.alc_rx_tag,
rxd->rx_dmamap);
m_freem(rxd->rx_m);
rxd->rx_m = NULL;
}
}
for (i = 0; i < ALC_TX_RING_CNT; i++) {
txd = &sc->alc_cdata.alc_txdesc[i];
if (txd->tx_m != NULL) {
bus_dmamap_sync(sc->alc_cdata.alc_tx_tag,
txd->tx_dmamap, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->alc_cdata.alc_tx_tag,
txd->tx_dmamap);
m_freem(txd->tx_m);
txd->tx_m = NULL;
}
}
}
static void
alc_stop_mac(struct alc_softc *sc)
{
uint32_t reg;
int i;
alc_stop_queue(sc);
reg = CSR_READ_4(sc, ALC_MAC_CFG);
if ((reg & (MAC_CFG_TX_ENB | MAC_CFG_RX_ENB)) != 0) {
reg &= ~(MAC_CFG_TX_ENB | MAC_CFG_RX_ENB);
CSR_WRITE_4(sc, ALC_MAC_CFG, reg);
}
for (i = ALC_TIMEOUT; i > 0; i--) {
reg = CSR_READ_4(sc, ALC_IDLE_STATUS);
if ((reg & (IDLE_STATUS_RXMAC | IDLE_STATUS_TXMAC)) == 0)
break;
DELAY(10);
}
if (i == 0)
device_printf(sc->alc_dev,
"could not disable Rx/Tx MAC(0x%08x)!\n", reg);
}
static void
alc_start_queue(struct alc_softc *sc)
{
uint32_t qcfg[] = {
0,
RXQ_CFG_QUEUE0_ENB,
RXQ_CFG_QUEUE0_ENB | RXQ_CFG_QUEUE1_ENB,
RXQ_CFG_QUEUE0_ENB | RXQ_CFG_QUEUE1_ENB | RXQ_CFG_QUEUE2_ENB,
RXQ_CFG_ENB
};
uint32_t cfg;
cfg = CSR_READ_4(sc, ALC_RXQ_CFG);
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);
cfg = CSR_READ_4(sc, ALC_TXQ_CFG);
cfg |= TXQ_CFG_ENB;
CSR_WRITE_4(sc, ALC_TXQ_CFG, cfg);
}
static void
alc_stop_queue(struct alc_softc *sc)
{
uint32_t reg;
int i;
reg = CSR_READ_4(sc, ALC_RXQ_CFG);
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);
}
}
reg = CSR_READ_4(sc, ALC_TXQ_CFG);
if ((reg & TXQ_CFG_ENB) != 0) {
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)
break;
DELAY(10);
}
if (i == 0)
device_printf(sc->alc_dev,
"could not disable RxQ/TxQ (0x%08x)!\n", reg);
}
static void
alc_init_tx_ring(struct alc_softc *sc)
{
struct alc_ring_data *rd;
struct alc_txdesc *txd;
int i;
sc->alc_cdata.alc_tx_prod = 0;
sc->alc_cdata.alc_tx_cons = 0;
sc->alc_cdata.alc_tx_cnt = 0;
rd = &sc->alc_rdata;
bzero(rd->alc_tx_ring, ALC_TX_RING_SZ);
for (i = 0; i < ALC_TX_RING_CNT; i++) {
txd = &sc->alc_cdata.alc_txdesc[i];
txd->tx_m = NULL;
}
bus_dmamap_sync(sc->alc_cdata.alc_tx_ring_tag,
sc->alc_cdata.alc_tx_ring_map, BUS_DMASYNC_PREWRITE);
}
static int
alc_init_rx_ring(struct alc_softc *sc)
{
struct alc_ring_data *rd;
struct alc_rxdesc *rxd;
int i;
sc->alc_cdata.alc_rx_cons = ALC_RX_RING_CNT - 1;
rd = &sc->alc_rdata;
bzero(rd->alc_rx_ring, ALC_RX_RING_SZ);
for (i = 0; i < ALC_RX_RING_CNT; i++) {
rxd = &sc->alc_cdata.alc_rxdesc[i];
rxd->rx_m = NULL;
rxd->rx_desc = &rd->alc_rx_ring[i];
if (alc_newbuf(sc, rxd, TRUE) != 0)
return (ENOBUFS);
}
bus_dmamap_sync(sc->alc_cdata.alc_rx_ring_tag,
sc->alc_cdata.alc_rx_ring_map, BUS_DMASYNC_PREWRITE);
CSR_WRITE_4(sc, ALC_MBOX_RD0_PROD_IDX, sc->alc_cdata.alc_rx_cons);
return (0);
}
static void
alc_init_rr_ring(struct alc_softc *sc)
{
struct alc_ring_data *rd;
sc->alc_cdata.alc_rr_cons = 0;
ALC_RXCHAIN_RESET(sc);
rd = &sc->alc_rdata;
bzero(rd->alc_rr_ring, ALC_RR_RING_SZ);
bus_dmamap_sync(sc->alc_cdata.alc_rr_ring_tag,
sc->alc_cdata.alc_rr_ring_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
}
static void
alc_init_cmb(struct alc_softc *sc)
{
struct alc_ring_data *rd;
rd = &sc->alc_rdata;
bzero(rd->alc_cmb, ALC_CMB_SZ);
bus_dmamap_sync(sc->alc_cdata.alc_cmb_tag, sc->alc_cdata.alc_cmb_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
}
static void
alc_init_smb(struct alc_softc *sc)
{
struct alc_ring_data *rd;
rd = &sc->alc_rdata;
bzero(rd->alc_smb, ALC_SMB_SZ);
bus_dmamap_sync(sc->alc_cdata.alc_smb_tag, sc->alc_cdata.alc_smb_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
}
static void
alc_rxvlan(struct alc_softc *sc)
{
struct ifnet *ifp;
uint32_t reg;
ifp = sc->alc_ifp;
reg = CSR_READ_4(sc, ALC_MAC_CFG);
if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0)
reg |= MAC_CFG_VLAN_TAG_STRIP;
else
reg &= ~MAC_CFG_VLAN_TAG_STRIP;
CSR_WRITE_4(sc, ALC_MAC_CFG, reg);
}
static void
alc_rxfilter(struct alc_softc *sc)
{
struct ifnet *ifp;
struct ifmultiaddr *ifma;
uint32_t crc;
uint32_t mchash[2];
uint32_t rxcfg;
ifp = sc->alc_ifp;
bzero(mchash, sizeof(mchash));
rxcfg = CSR_READ_4(sc, ALC_MAC_CFG);
rxcfg &= ~(MAC_CFG_ALLMULTI | MAC_CFG_BCAST | MAC_CFG_PROMISC);
if ((ifp->if_flags & IFF_BROADCAST) != 0)
rxcfg |= MAC_CFG_BCAST;
if ((ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0) {
if ((ifp->if_flags & IFF_PROMISC) != 0)
rxcfg |= MAC_CFG_PROMISC;
if ((ifp->if_flags & IFF_ALLMULTI) != 0)
rxcfg |= MAC_CFG_ALLMULTI;
mchash[0] = 0xFFFFFFFF;
mchash[1] = 0xFFFFFFFF;
goto chipit;
}
#if 0
if_maddr_rlock(ifp);
#endif
TAILQ_FOREACH(ifma, &sc->alc_ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
crc = ether_crc32_be(LLADDR((struct sockaddr_dl *)
ifma->ifma_addr), ETHER_ADDR_LEN);
mchash[crc >> 31] |= 1 << ((crc >> 26) & 0x1f);
}
#if 0
if_maddr_runlock(ifp);
#endif
chipit:
CSR_WRITE_4(sc, ALC_MAR0, mchash[0]);
CSR_WRITE_4(sc, ALC_MAR1, mchash[1]);
CSR_WRITE_4(sc, ALC_MAC_CFG, rxcfg);
}
static int
sysctl_hw_alc_proc_limit(SYSCTL_HANDLER_ARGS)
{
return (sysctl_int_range(oidp, arg1, arg2, req,
ALC_PROC_MIN, ALC_PROC_MAX));
}
static int
sysctl_hw_alc_int_mod(SYSCTL_HANDLER_ARGS)
{
return (sysctl_int_range(oidp, arg1, arg2, req,
ALC_IM_TIMER_MIN, ALC_IM_TIMER_MAX));
}
