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[TG3]: Support shutdown WoL. 

Support WoL during shutdown by calling
tg3_set_power_state(tp, PCI_D3hot) during tg3_close().

Change the power state parameter to pci_power_t type and use
constants defined in pci.h.

Certain ethtool operations cannot be performed after tg3_close()
because the device will go to low power state. Add return -EAGAIN
in such cases where appropriate.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2006-03-20 17:48:03 -08:00 committed by David S. Miller
parent 4e3a7aaa28
commit bc1c756741
1 changed files with 41 additions and 11 deletions
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52
drivers/net/tg3.c
View File

@ -1042,9 +1042,11 @@ static void tg3_frob_aux_power(struct tg3 *tp)
struct net_device *dev_peer;
dev_peer = pci_get_drvdata(tp->pdev_peer);
/* remove_one() may have been run on the peer. */
if (!dev_peer)
BUG();
tp_peer = netdev_priv(dev_peer);
tp_peer = tp;
else
tp_peer = netdev_priv(dev_peer);
}
if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
@ -1135,7 +1137,7 @@ static int tg3_halt_cpu(struct tg3 *, u32);
static int tg3_nvram_lock(struct tg3 *);
static void tg3_nvram_unlock(struct tg3 *);
static int tg3_set_power_state(struct tg3 *tp, int state)
static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
{
u32 misc_host_ctrl;
u16 power_control, power_caps;
@ -1154,7 +1156,7 @@ static int tg3_set_power_state(struct tg3 *tp, int state)
power_control |= PCI_PM_CTRL_PME_STATUS;
power_control &= ~(PCI_PM_CTRL_STATE_MASK);
switch (state) {
case 0:
case PCI_D0:
power_control |= 0;
pci_write_config_word(tp->pdev,
pm + PCI_PM_CTRL,
@ -1167,15 +1169,15 @@ static int tg3_set_power_state(struct tg3 *tp, int state)
return 0;
case 1:
case PCI_D1:
power_control |= 1;
break;
case 2:
case PCI_D2:
power_control |= 2;
break;
case 3:
case PCI_D3hot:
power_control |= 3;
break;
@ -6206,7 +6208,7 @@ static int tg3_init_hw(struct tg3 *tp)
int err;
/* Force the chip into D0. */
err = tg3_set_power_state(tp, 0);
err = tg3_set_power_state(tp, PCI_D0);
if (err)
goto out;
@ -6493,6 +6495,10 @@ static int tg3_open(struct net_device *dev)
tg3_full_lock(tp, 0);
err = tg3_set_power_state(tp, PCI_D0);
if (err)
return err;
tg3_disable_ints(tp);
tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
@ -6872,7 +6878,6 @@ static int tg3_close(struct net_device *dev)
tp->tg3_flags &=
~(TG3_FLAG_INIT_COMPLETE |
TG3_FLAG_GOT_SERDES_FLOWCTL);
netif_carrier_off(tp->dev);
tg3_full_unlock(tp);
@ -6889,6 +6894,10 @@ static int tg3_close(struct net_device *dev)
tg3_free_consistent(tp);
tg3_set_power_state(tp, PCI_D3hot);
netif_carrier_off(tp->dev);
return 0;
}
@ -7207,6 +7216,9 @@ static void tg3_get_regs(struct net_device *dev,
memset(p, 0, TG3_REGDUMP_LEN);
if (tp->link_config.phy_is_low_power)
return;
tg3_full_lock(tp, 0);
#define __GET_REG32(reg) (*(p)++ = tr32(reg))
@ -7281,6 +7293,9 @@ static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
u8 *pd;
u32 i, offset, len, val, b_offset, b_count;
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
offset = eeprom->offset;
len = eeprom->len;
eeprom->len = 0;
@ -7342,6 +7357,9 @@ static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
u32 offset, len, b_offset, odd_len, start, end;
u8 *buf;
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
if (eeprom->magic != TG3_EEPROM_MAGIC)
return -EINVAL;
@ -8262,6 +8280,9 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
{
struct tg3 *tp = netdev_priv(dev);
if (tp->link_config.phy_is_low_power)
tg3_set_power_state(tp, PCI_D0);
memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
if (tg3_test_nvram(tp) != 0) {
@ -8319,6 +8340,9 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
tg3_full_unlock(tp);
}
if (tp->link_config.phy_is_low_power)
tg3_set_power_state(tp, PCI_D3hot);
}
static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
@ -8338,6 +8362,9 @@ static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
break; /* We have no PHY */
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
spin_lock_bh(&tp->lock);
err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
spin_unlock_bh(&tp->lock);
@ -8354,6 +8381,9 @@ static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (tp->link_config.phy_is_low_power)
return -EAGAIN;
spin_lock_bh(&tp->lock);
err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
spin_unlock_bh(&tp->lock);
@ -9805,7 +9835,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
/* Force the chip into D0. */
err = tg3_set_power_state(tp, 0);
err = tg3_set_power_state(tp, PCI_D0);
if (err) {
printk(KERN_ERR PFX "(%s) transition to D0 failed\n",
pci_name(tp->pdev));
@ -11078,7 +11108,7 @@ static int tg3_resume(struct pci_dev *pdev)
pci_restore_state(tp->pdev);
err = tg3_set_power_state(tp, 0);
err = tg3_set_power_state(tp, PCI_D0);
if (err)
return err;