Commit 89c758fa authored by Ben Hutchings's avatar Ben Hutchings Committed by David S. Miller

sfc: Add power-management and wake-on-LAN support

Wake-on-LAN is a stub for Falcon, but will be implemented fully for
new NICs.
Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 78c1f0a0
......@@ -2243,11 +2243,107 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
return rc;
}
static int efx_pm_freeze(struct device *dev)
{
struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
efx->state = STATE_FINI;
netif_device_detach(efx->net_dev);
efx_stop_all(efx);
efx_fini_channels(efx);
return 0;
}
static int efx_pm_thaw(struct device *dev)
{
struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
efx->state = STATE_INIT;
efx_init_channels(efx);
mutex_lock(&efx->mac_lock);
efx->phy_op->reconfigure(efx);
mutex_unlock(&efx->mac_lock);
efx_start_all(efx);
netif_device_attach(efx->net_dev);
efx->state = STATE_RUNNING;
efx->type->resume_wol(efx);
return 0;
}
static int efx_pm_poweroff(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct efx_nic *efx = pci_get_drvdata(pci_dev);
efx->type->fini(efx);
efx->reset_pending = RESET_TYPE_NONE;
pci_save_state(pci_dev);
return pci_set_power_state(pci_dev, PCI_D3hot);
}
/* Used for both resume and restore */
static int efx_pm_resume(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct efx_nic *efx = pci_get_drvdata(pci_dev);
int rc;
rc = pci_set_power_state(pci_dev, PCI_D0);
if (rc)
return rc;
pci_restore_state(pci_dev);
rc = pci_enable_device(pci_dev);
if (rc)
return rc;
pci_set_master(efx->pci_dev);
rc = efx->type->reset(efx, RESET_TYPE_ALL);
if (rc)
return rc;
rc = efx->type->init(efx);
if (rc)
return rc;
efx_pm_thaw(dev);
return 0;
}
static int efx_pm_suspend(struct device *dev)
{
int rc;
efx_pm_freeze(dev);
rc = efx_pm_poweroff(dev);
if (rc)
efx_pm_resume(dev);
return rc;
}
static struct dev_pm_ops efx_pm_ops = {
.suspend = efx_pm_suspend,
.resume = efx_pm_resume,
.freeze = efx_pm_freeze,
.thaw = efx_pm_thaw,
.poweroff = efx_pm_poweroff,
.restore = efx_pm_resume,
};
static struct pci_driver efx_pci_driver = {
.name = EFX_DRIVER_NAME,
.id_table = efx_pci_table,
.probe = efx_pci_probe,
.remove = efx_pci_remove,
.driver.pm = &efx_pm_ops,
};
/**************************************************************************
......
......@@ -739,6 +739,21 @@ static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
}
static void efx_ethtool_get_wol(struct net_device *net_dev,
struct ethtool_wolinfo *wol)
{
struct efx_nic *efx = netdev_priv(net_dev);
return efx->type->get_wol(efx, wol);
}
static int efx_ethtool_set_wol(struct net_device *net_dev,
struct ethtool_wolinfo *wol)
{
struct efx_nic *efx = netdev_priv(net_dev);
return efx->type->set_wol(efx, wol->wolopts);
}
const struct ethtool_ops efx_ethtool_ops = {
.get_settings = efx_ethtool_get_settings,
.set_settings = efx_ethtool_set_settings,
......@@ -767,4 +782,6 @@ const struct ethtool_ops efx_ethtool_ops = {
.get_strings = efx_ethtool_get_strings,
.phys_id = efx_ethtool_phys_id,
.get_ethtool_stats = efx_ethtool_get_stats,
.get_wol = efx_ethtool_get_wol,
.set_wol = efx_ethtool_set_wol,
};
......@@ -3243,6 +3243,27 @@ void falcon_stop_nic_stats(struct efx_nic *efx)
spin_unlock_bh(&efx->stats_lock);
}
/**************************************************************************
*
* Wake on LAN
*
**************************************************************************
*/
static void falcon_get_wol(struct efx_nic *efx, struct ethtool_wolinfo *wol)
{
wol->supported = 0;
wol->wolopts = 0;
memset(&wol->sopass, 0, sizeof(wol->sopass));
}
static int falcon_set_wol(struct efx_nic *efx, u32 type)
{
if (type != 0)
return -EINVAL;
return 0;
}
/**************************************************************************
*
* Revision-dependent attributes used by efx.c
......@@ -3266,6 +3287,9 @@ struct efx_nic_type falcon_a1_nic_type = {
.push_irq_moderation = falcon_push_irq_moderation,
.push_multicast_hash = falcon_push_multicast_hash,
.reconfigure_port = falcon_reconfigure_port,
.get_wol = falcon_get_wol,
.set_wol = falcon_set_wol,
.resume_wol = efx_port_dummy_op_void,
.default_mac_ops = &falcon_xmac_operations,
.revision = EFX_REV_FALCON_A1,
......@@ -3299,6 +3323,9 @@ struct efx_nic_type falcon_b0_nic_type = {
.push_irq_moderation = falcon_push_irq_moderation,
.push_multicast_hash = falcon_push_multicast_hash,
.reconfigure_port = falcon_reconfigure_port,
.get_wol = falcon_get_wol,
.set_wol = falcon_set_wol,
.resume_wol = efx_port_dummy_op_void,
.default_mac_ops = &falcon_xmac_operations,
.revision = EFX_REV_FALCON_B0,
......
......@@ -861,6 +861,9 @@ static inline const char *efx_dev_name(struct efx_nic *efx)
* @push_irq_moderation: Apply interrupt moderation value
* @push_multicast_hash: Apply multicast hash table
* @reconfigure_port: Push loopback/power/txdis changes to the MAC and PHY
* @get_wol: Get WoL configuration from driver state
* @set_wol: Push WoL configuration to the NIC
* @resume_wol: Synchronise WoL state between driver and MC (e.g. after resume)
* @default_mac_ops: efx_mac_operations to set at startup
* @revision: Hardware architecture revision
* @mem_map_size: Memory BAR mapped size
......@@ -894,6 +897,9 @@ struct efx_nic_type {
void (*push_irq_moderation)(struct efx_channel *channel);
void (*push_multicast_hash)(struct efx_nic *efx);
int (*reconfigure_port)(struct efx_nic *efx);
void (*get_wol)(struct efx_nic *efx, struct ethtool_wolinfo *wol);
int (*set_wol)(struct efx_nic *efx, u32 type);
void (*resume_wol)(struct efx_nic *efx);
struct efx_mac_operations *default_mac_ops;
int revision;
......
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