static void cvm_oct_sgmii_poll(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info)
return;
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
/* Tell Linux */
if (link_info.s.link_up) {
if (!netif_carrier_ok(dev))
netif_carrier_on(dev);
if (priv->queue != -1)
printk_ratelimited
("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ? "Full" : "Half",
priv->port, priv->queue);
else
printk_ratelimited
("%s: %u Mbps %s duplex, port %2d, POW\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ? "Full" : "Half",
priv->port);
} else {
if (netif_carrier_ok(dev))
netif_carrier_off(dev);
printk_ratelimited("%s: Link down\n", dev->name);
}
}
int cvm_oct_sgmii_open(struct net_device *dev)
{
union cvmx_gmxx_prtx_cfg gmx_cfg;
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
int rv;
rv = cvm_oct_phy_setup_device(dev);
if (rv)
return rv;
gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(priv->interface_port, priv->interface));
gmx_cfg.s.en = 1;
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(priv->interface_port, priv->interface), gmx_cfg.u64);
if (octeon_is_simulation())
return 0;
if (priv->phydev) {
int r = phy_read_status(priv->phydev);
if (r == 0 && priv->phydev->link == 0)
netif_carrier_off(dev);
cvm_oct_adjust_link(dev);
} else {
link_info = cvmx_helper_link_get(priv->ipd_port);
if (!link_info.s.link_up)
netif_carrier_off(dev);
priv->poll = cvm_oct_sgmii_poll;
cvm_oct_sgmii_poll(dev);
}
return 0;
}
/**
* Enable port.
*/
int cvm_oct_common_open(struct ifnet *ifp)
{
cvmx_gmxx_prtx_cfg_t gmx_cfg;
cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
cvmx_helper_link_info_t link_info;
gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
gmx_cfg.s.en = 1;
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
/*
* Set the link state unless we are using MII.
*/
if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM && priv->miibus == NULL) {
link_info = cvmx_helper_link_get(priv->port);
if (!link_info.s.link_up)
if_link_state_change(ifp, LINK_STATE_DOWN);
else
if_link_state_change(ifp, LINK_STATE_UP);
}
return 0;
}
static void cvm_oct_sgmii_poll(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
link_info = cvmx_helper_link_get(priv->ipd_port);
if (link_info.u64 == priv->link_info)
return;
link_info = cvmx_helper_link_autoconf(priv->ipd_port);
priv->link_info = link_info.u64;
/* Tell the core */
cvm_oct_set_carrier(priv, link_info);
}
int cvm_oct_xaui_open(struct net_device *dev)
{
union cvmx_gmxx_prtx_cfg gmx_cfg;
struct octeon_ethernet *priv = netdev_priv(dev);
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
cvmx_helper_link_info_t link_info;
gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
gmx_cfg.s.en = 1;
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
if (!octeon_is_simulation()) {
link_info = cvmx_helper_link_get(priv->port);
if (!link_info.s.link_up)
netif_carrier_off(dev);
}
return 0;
}
void cvm_oct_link_poll(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info)
return;
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
if (link_info.s.link_up) {
if (!netif_carrier_ok(dev))
netif_carrier_on(dev);
} else if (netif_carrier_ok(dev)) {
netif_carrier_off(dev);
}
cvm_oct_note_carrier(priv, link_info);
}
int cvm_oct_common_open(struct net_device *dev,
void (*link_poll)(struct net_device *))
{
union cvmx_gmxx_prtx_cfg gmx_cfg;
struct octeon_ethernet *priv = netdev_priv(dev);
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
cvmx_helper_link_info_t link_info;
int rv;
rv = cvm_oct_phy_setup_device(dev);
if (rv)
return rv;
gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
gmx_cfg.s.en = 1;
if (octeon_has_feature(OCTEON_FEATURE_PKND))
gmx_cfg.s.pknd = priv->port;
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
if (octeon_is_simulation())
return 0;
if (dev->phydev) {
int r = phy_read_status(dev->phydev);
if (r == 0 && dev->phydev->link == 0)
netif_carrier_off(dev);
cvm_oct_adjust_link(dev);
} else {
link_info = cvmx_helper_link_get(priv->port);
if (!link_info.s.link_up)
netif_carrier_off(dev);
priv->poll = link_poll;
link_poll(dev);
}
return 0;
}
/**
* Poll for link status change.
*/
void cvm_oct_common_poll(struct ifnet *ifp)
{
cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
cvmx_helper_link_info_t link_info;
/*
* If this is a simulation, do nothing.
*/
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
return;
/*
* If there is a device-specific poll method, use it.
*/
if (priv->poll != NULL) {
priv->poll(ifp);
return;
}
/*
* If an MII bus is attached, don't use the Simple Executive's link
* state routines.
*/
if (priv->miibus != NULL)
return;
/*
* Use the Simple Executive's link state routines.
*/
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info)
return;
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
priv->need_link_update = 1;
}
static void cvm_oct_rgmii_poll(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info) {
/*
* If the 10Mbps preamble workaround is supported and we're
* at 10Mbps we may need to do some special checking.
*/
if (USE_10MBPS_PREAMBLE_WORKAROUND && (link_info.s.speed == 10)) {
/*
* Read the GMXX_RXX_INT_REG[PCTERR] bit and
* see if we are getting preamble errors.
*/
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
union cvmx_gmxx_rxx_int_reg gmxx_rxx_int_reg;
gmxx_rxx_int_reg.u64 = cvmx_read_csr(CVMX_GMXX_RXX_INT_REG(index, interface));
if (gmxx_rxx_int_reg.s.pcterr) {
/*
* We are getting preamble errors at
* 10Mbps. Most likely the PHY is
* giving us packets with mis aligned
* preambles. In order to get these
* packets we need to disable preamble
* checking and do it in software.
*/
union cvmx_gmxx_rxx_frm_ctl gmxx_rxx_frm_ctl;
union cvmx_ipd_sub_port_fcs ipd_sub_port_fcs;
/* Disable preamble checking */
gmxx_rxx_frm_ctl.u64 = cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 0;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface), gmxx_rxx_frm_ctl.u64);
/* Disable FCS stripping */
ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit &= 0xffffffffull ^ (1ull << priv->port);
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
/* Clear any error bits */
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG(index, interface), gmxx_rxx_int_reg.u64);
DEBUGPRINT("%s: Using 10Mbps with software preamble removal\n",
dev->name);
}
}
return;
}
/* If the 10Mbps preamble workaround is allowed we need to on
preamble checking, FCS stripping, and clear error bits on
every speed change. If errors occur during 10Mbps operation
the above code will change this stuff */
if (USE_10MBPS_PREAMBLE_WORKAROUND) {
union cvmx_gmxx_rxx_frm_ctl gmxx_rxx_frm_ctl;
union cvmx_ipd_sub_port_fcs ipd_sub_port_fcs;
union cvmx_gmxx_rxx_int_reg gmxx_rxx_int_reg;
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
/* Enable preamble checking */
gmxx_rxx_frm_ctl.u64 = cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 1;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface), gmxx_rxx_frm_ctl.u64);
/* Enable FCS stripping */
ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit |= 1ull << priv->port;
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
/* Clear any error bits */
gmxx_rxx_int_reg.u64 = cvmx_read_csr(CVMX_GMXX_RXX_INT_REG(index, interface));
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG(index, interface), gmxx_rxx_int_reg.u64);
}
if (priv->phydev == NULL) {
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
}
if (priv->phydev == NULL)
cvm_oct_set_carrier(priv, link_info);
}
static void cvm_oct_rgmii_poll(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
unsigned long flags = 0;
cvmx_helper_link_info_t link_info;
int use_global_register_lock = (priv->phydev == NULL);
BUG_ON(in_interrupt());
if (use_global_register_lock) {
/*
* Take the global register lock since we are going to
* touch registers that affect more than one port.
*/
spin_lock_irqsave(&global_register_lock, flags);
} else {
mutex_lock(&priv->phydev->bus->mdio_lock);
}
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info) {
/*
* If the 10Mbps preamble workaround is supported and we're
* at 10Mbps we may need to do some special checking.
*/
if (USE_10MBPS_PREAMBLE_WORKAROUND && (link_info.s.speed == 10)) {
/*
* Read the GMXX_RXX_INT_REG[PCTERR] bit and
* see if we are getting preamble errors.
*/
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
union cvmx_gmxx_rxx_int_reg gmxx_rxx_int_reg;
gmxx_rxx_int_reg.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_INT_REG
(index, interface));
if (gmxx_rxx_int_reg.s.pcterr) {
/*
* We are getting preamble errors at
* 10Mbps. Most likely the PHY is
* giving us packets with mis aligned
* preambles. In order to get these
* packets we need to disable preamble
* checking and do it in software.
*/
union cvmx_gmxx_rxx_frm_ctl gmxx_rxx_frm_ctl;
union cvmx_ipd_sub_port_fcs ipd_sub_port_fcs;
/* Disable preamble checking */
gmxx_rxx_frm_ctl.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL
(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 0;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL
(index, interface),
gmxx_rxx_frm_ctl.u64);
/* Disable FCS stripping */
ipd_sub_port_fcs.u64 =
cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit &=
0xffffffffull ^ (1ull << priv->port);
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS,
ipd_sub_port_fcs.u64);
/* Clear any error bits */
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG
(index, interface),
gmxx_rxx_int_reg.u64);
printk_ratelimited("%s: Using 10Mbps with software "
"preamble removal\n",
dev->name);
}
}
if (use_global_register_lock)
spin_unlock_irqrestore(&global_register_lock, flags);
else
mutex_unlock(&priv->phydev->bus->mdio_lock);
return;
}
/* If the 10Mbps preamble workaround is allowed we need to on
preamble checking, FCS stripping, and clear error bits on
every speed change. If errors occur during 10Mbps operation
the above code will change this stuff */
if (USE_10MBPS_PREAMBLE_WORKAROUND) {
union cvmx_gmxx_rxx_frm_ctl gmxx_rxx_frm_ctl;
union cvmx_ipd_sub_port_fcs ipd_sub_port_fcs;
union cvmx_gmxx_rxx_int_reg gmxx_rxx_int_reg;
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
/* Enable preamble checking */
gmxx_rxx_frm_ctl.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 1;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface),
gmxx_rxx_frm_ctl.u64);
/* Enable FCS stripping */
ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit |= 1ull << priv->port;
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
/* Clear any error bits */
gmxx_rxx_int_reg.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_INT_REG(index, interface));
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG(index, interface),
gmxx_rxx_int_reg.u64);
}
if (priv->phydev == NULL) {
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
}
if (use_global_register_lock)
spin_unlock_irqrestore(&global_register_lock, flags);
else {
mutex_unlock(&priv->phydev->bus->mdio_lock);
}
if (priv->phydev == NULL) {
/* Tell core. */
if (link_info.s.link_up) {
if (!netif_carrier_ok(dev))
netif_carrier_on(dev);
if (priv->queue != -1)
printk_ratelimited("%s: %u Mbps %s duplex, "
"port %2d, queue %2d\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ?
"Full" : "Half",
priv->port, priv->queue);
else
printk_ratelimited("%s: %u Mbps %s duplex, "
"port %2d, POW\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ?
"Full" : "Half",
priv->port);
} else {
if (netif_carrier_ok(dev))
netif_carrier_off(dev);
printk_ratelimited("%s: Link down\n", dev->name);
}
}
}
int cvm_oct_sgmii_open(struct net_device *dev)
{
struct octeon_hw_status_reg sr[3];
union cvmx_gmxx_prtx_cfg gmx_cfg;
struct octeon_ethernet *priv = netdev_priv(dev);
cvmx_helper_link_info_t link_info;
cvmx_helper_interface_mode_t imode;
int rv, i;
u64 en_mask;
rv = cvm_oct_phy_setup_device(dev);
if (rv)
return rv;
gmx_cfg.u64 = cvmx_read_csr(priv->gmx_base + GMX_PRT_CFG);
gmx_cfg.s.en = 1;
cvmx_write_csr(priv->gmx_base + GMX_PRT_CFG, gmx_cfg.u64);
if (octeon_is_simulation())
return 0;
if (priv->phydev) {
int r = phy_read_status(priv->phydev);
if (r == 0 && priv->phydev->link == 0)
netif_carrier_off(dev);
cvm_oct_adjust_link(dev);
} else {
link_info = cvmx_helper_link_get(priv->ipd_port);
if (!link_info.s.link_up)
netif_carrier_off(dev);
priv->poll = cvm_oct_sgmii_poll;
cvm_oct_sgmii_poll(dev);
}
imode = cvmx_helper_interface_get_mode(priv->interface);
switch (imode) {
case CVMX_HELPER_INTERFACE_MODE_XAUI:
case CVMX_HELPER_INTERFACE_MODE_RXAUI:
/* Handle GMXX_RXX_INT_REG[LOC_FAULT,REM_FAULT]*/
priv->hw_status_notifier.priority = 10;
priv->hw_status_notifier.notifier_call = cvm_oct_sgmii_hw_status;
octeon_hw_status_notifier_register(&priv->hw_status_notifier);
memset(sr, 0, sizeof(sr));
i = 0;
en_mask = 0;
if (OCTEON_IS_OCTEONPLUS()) {
sr[i].reg = 46; /* RML */
sr[i].reg_is_hwint = 1;
sr[i].has_child = 1;
i++;
sr[i].reg = CVMX_NPEI_RSL_INT_BLOCKS;
/* GMX[priv->interface]*/
sr[i].bit = priv->interface + 1;
sr[i].has_child = 1;
i++;
} else if (octeon_has_feature(OCTEON_FEATURE_CIU2)) {
/* PKT[AGX[priv->interface]]*/
sr[i].reg = (6 << 6) | priv->interface;
sr[i].reg_is_hwint = 1;
sr[i].has_child = 1;
i++;
} else {
/* INT_SUM1[AGX[priv->interface]]*/
sr[i].reg = (1 << 6) | (priv->interface + 36);
sr[i].reg_is_hwint = 1;
sr[i].has_child = 1;
i++;
}
sr[i].reg = CVMX_GMXX_RXX_INT_REG(priv->interface_port,
priv->interface);
sr[i].mask_reg = CVMX_GMXX_RXX_INT_EN(priv->interface_port,
priv->interface);
sr[i].ack_w1c = 1;
sr[i].bit = INT_BIT_LOC_FAULT;
en_mask |= 1ull << sr[i].bit;
octeon_hw_status_add_source(sr);
sr[i].bit = INT_BIT_REM_FAULT;
en_mask |= 1ull << sr[i].bit;
octeon_hw_status_add_source(sr);
octeon_hw_status_enable(sr[i].reg, en_mask);
break;
default:
break;
}
return 0;
}
static void cvm_oct_rgmii_poll(struct ifnet *ifp)
{
cvm_oct_private_t *priv = (cvm_oct_private_t *)ifp->if_softc;
cvmx_helper_link_info_t link_info;
/* Take the global register lock since we are going to touch
registers that affect more than one port */
mtx_lock_spin(&global_register_lock);
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info) {
/* If the 10Mbps preamble workaround is supported and we're
at 10Mbps we may need to do some special checking */
if (USE_10MBPS_PREAMBLE_WORKAROUND && (link_info.s.speed == 10)) {
/* Read the GMXX_RXX_INT_REG[PCTERR] bit and
see if we are getting preamble errors */
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
cvmx_gmxx_rxx_int_reg_t gmxx_rxx_int_reg;
gmxx_rxx_int_reg.u64 = cvmx_read_csr(CVMX_GMXX_RXX_INT_REG(index, interface));
if (gmxx_rxx_int_reg.s.pcterr) {
/* We are getting preamble errors at 10Mbps.
Most likely the PHY is giving us packets
with mis aligned preambles. In order to get
these packets we need to disable preamble
checking and do it in software */
cvmx_gmxx_rxx_frm_ctl_t gmxx_rxx_frm_ctl;
cvmx_ipd_sub_port_fcs_t ipd_sub_port_fcs;
/* Disable preamble checking */
gmxx_rxx_frm_ctl.u64 = cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 0;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface), gmxx_rxx_frm_ctl.u64);
/* Disable FCS stripping */
ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit &= 0xffffffffull ^ (1ull<<priv->port);
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
/* Clear any error bits */
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG(index, interface), gmxx_rxx_int_reg.u64);
DEBUGPRINT("%s: Using 10Mbps with software preamble removal\n", if_name(ifp));
}
}
mtx_unlock_spin(&global_register_lock);
return;
}
/* If the 10Mbps preamble workaround is allowed we need to on
preamble checking, FCS stripping, and clear error bits on
every speed change. If errors occur during 10Mbps operation
the above code will change this stuff */
if (USE_10MBPS_PREAMBLE_WORKAROUND) {
cvmx_gmxx_rxx_frm_ctl_t gmxx_rxx_frm_ctl;
cvmx_ipd_sub_port_fcs_t ipd_sub_port_fcs;
cvmx_gmxx_rxx_int_reg_t gmxx_rxx_int_reg;
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
/* Enable preamble checking */
gmxx_rxx_frm_ctl.u64 = cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 1;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface), gmxx_rxx_frm_ctl.u64);
/* Enable FCS stripping */
ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit |= 1ull<<priv->port;
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
/* Clear any error bits */
gmxx_rxx_int_reg.u64 = cvmx_read_csr(CVMX_GMXX_RXX_INT_REG(index, interface));
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG(index, interface), gmxx_rxx_int_reg.u64);
}
if (priv->miibus == NULL) {
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
priv->need_link_update = 1;
}
mtx_unlock_spin(&global_register_lock);
}
static void cvm_oct_rgmii_poll(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
unsigned long flags;
cvmx_helper_link_info_t link_info;
spin_lock_irqsave(&global_register_lock, flags);
link_info = cvmx_helper_link_get(priv->port);
if (link_info.u64 == priv->link_info) {
if (USE_10MBPS_PREAMBLE_WORKAROUND && (link_info.s.speed == 10)) {
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
union cvmx_gmxx_rxx_int_reg gmxx_rxx_int_reg;
gmxx_rxx_int_reg.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_INT_REG
(index, interface));
if (gmxx_rxx_int_reg.s.pcterr) {
union cvmx_gmxx_rxx_frm_ctl gmxx_rxx_frm_ctl;
union cvmx_ipd_sub_port_fcs ipd_sub_port_fcs;
gmxx_rxx_frm_ctl.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL
(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 0;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL
(index, interface),
gmxx_rxx_frm_ctl.u64);
ipd_sub_port_fcs.u64 =
cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit &=
0xffffffffull ^ (1ull << priv->port);
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS,
ipd_sub_port_fcs.u64);
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG
(index, interface),
gmxx_rxx_int_reg.u64);
DEBUGPRINT("%s: Using 10Mbps with software "
"preamble removal\n",
dev->name);
}
}
spin_unlock_irqrestore(&global_register_lock, flags);
return;
}
if (USE_10MBPS_PREAMBLE_WORKAROUND) {
union cvmx_gmxx_rxx_frm_ctl gmxx_rxx_frm_ctl;
union cvmx_ipd_sub_port_fcs ipd_sub_port_fcs;
union cvmx_gmxx_rxx_int_reg gmxx_rxx_int_reg;
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
gmxx_rxx_frm_ctl.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface));
gmxx_rxx_frm_ctl.s.pre_chk = 1;
cvmx_write_csr(CVMX_GMXX_RXX_FRM_CTL(index, interface),
gmxx_rxx_frm_ctl.u64);
ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
ipd_sub_port_fcs.s.port_bit |= 1ull << priv->port;
cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
gmxx_rxx_int_reg.u64 =
cvmx_read_csr(CVMX_GMXX_RXX_INT_REG(index, interface));
cvmx_write_csr(CVMX_GMXX_RXX_INT_REG(index, interface),
gmxx_rxx_int_reg.u64);
}
link_info = cvmx_helper_link_autoconf(priv->port);
priv->link_info = link_info.u64;
spin_unlock_irqrestore(&global_register_lock, flags);
if (link_info.s.link_up) {
if (!netif_carrier_ok(dev))
netif_carrier_on(dev);
if (priv->queue != -1)
DEBUGPRINT
("%s: %u Mbps %s duplex, port %2d, queue %2d\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ? "Full" : "Half",
priv->port, priv->queue);
else
DEBUGPRINT("%s: %u Mbps %s duplex, port %2d, POW\n",
dev->name, link_info.s.speed,
(link_info.s.full_duplex) ? "Full" : "Half",
priv->port);
} else {
if (netif_carrier_ok(dev))
netif_carrier_off(dev);
DEBUGPRINT("%s: Link down\n", dev->name);
}
}