static int falcon_reconfigure_port(struct efx_nic *efx)
{
int rc;
WARN_ON(efx_nic_rev(efx) > EFX_REV_FALCON_B0);
/* Poll the PHY link state *before* reconfiguring it. This means we
* will pick up the correct speed (in loopback) to select the correct
* MAC.
*/
if (LOOPBACK_INTERNAL(efx))
falcon_loopback_link_poll(efx);
else
efx->phy_op->poll(efx);
falcon_stop_nic_stats(efx);
falcon_deconfigure_mac_wrapper(efx);
falcon_reset_macs(efx);
efx->phy_op->reconfigure(efx);
rc = falcon_reconfigure_xmac(efx);
BUG_ON(rc);
falcon_start_nic_stats(efx);
/* Synchronise efx->link_state with the kernel */
efx_link_status_changed(efx);
return 0;
}
static int falcon_reconfigure_port(struct efx_nic *efx)
{
int rc;
WARN_ON(efx_nic_rev(efx) > EFX_REV_FALCON_B0);
if (LOOPBACK_INTERNAL(efx))
falcon_loopback_link_poll(efx);
else
efx->phy_op->poll(efx);
falcon_stop_nic_stats(efx);
falcon_deconfigure_mac_wrapper(efx);
falcon_reset_macs(efx);
efx->phy_op->reconfigure(efx);
rc = falcon_reconfigure_xmac(efx);
BUG_ON(rc);
falcon_start_nic_stats(efx);
efx_link_status_changed(efx);
return 0;
}
void falcon_reconfigure_xmac(struct efx_nic *efx)
{
bool xaui_link_ok;
falcon_mask_status_intr(efx, false);
falcon_deconfigure_mac_wrapper(efx);
/* Reconfigure the PHY, disabling transmit in mac level loopback. */
if (LOOPBACK_INTERNAL(efx))
efx->phy_mode |= PHY_MODE_TX_DISABLED;
else
efx->phy_mode &= ~PHY_MODE_TX_DISABLED;
efx->phy_op->reconfigure(efx);
falcon_reconfigure_xgxs_core(efx);
falcon_reconfigure_xmac_core(efx);
falcon_reconfigure_mac_wrapper(efx);
/* Ensure XAUI link is up */
xaui_link_ok = falcon_check_xaui_link_up(efx);
if (xaui_link_ok && efx->link_up)
falcon_mask_status_intr(efx, true);
}
void falcon_fini_xmac(struct efx_nic *efx)
{
/* Isolate the MAC - PHY */
falcon_deconfigure_mac_wrapper(efx);
/* Potentially power down the PHY */
efx->phy_op->fini(efx);
}
static void falcon_prepare_flush(struct efx_nic *efx)
{
falcon_deconfigure_mac_wrapper(efx);
/* Wait for the tx and rx fifo's to get to the next packet boundary
* (~1ms without back-pressure), then to drain the remainder of the
* fifo's at data path speeds (negligible), with a healthy margin. */
msleep(10);
}
static void falcon_monitor(struct efx_nic *efx)
{
bool link_changed;
int rc;
BUG_ON(!mutex_is_locked(&efx->mac_lock));
rc = falcon_board(efx)->type->monitor(efx);
if (rc) {
netif_err(efx, hw, efx->net_dev,
"Board sensor %s; shutting down PHY\n",
(rc == -ERANGE) ? "reported fault" : "failed");
efx->phy_mode |= PHY_MODE_LOW_POWER;
rc = __efx_reconfigure_port(efx);
WARN_ON(rc);
}
if (LOOPBACK_INTERNAL(efx))
link_changed = falcon_loopback_link_poll(efx);
else
link_changed = efx->phy_op->poll(efx);
if (link_changed) {
falcon_stop_nic_stats(efx);
falcon_deconfigure_mac_wrapper(efx);
falcon_reset_macs(efx);
rc = falcon_reconfigure_xmac(efx);
BUG_ON(rc);
falcon_start_nic_stats(efx);
efx_link_status_changed(efx);
}
falcon_poll_xmac(efx);
}
static void falcon_prepare_flush(struct efx_nic *efx)
{
falcon_deconfigure_mac_wrapper(efx);
msleep(10);
}