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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-15 18:40:05 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-15 18:40:05 +0200
commit2ed0e21b30b53d3a94e204196e523e6c8f732b56 (patch)
treede2635426477d86338a9469ce09ba0626052288f /drivers/net/atl1c/atl1c_main.c
parentMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/po... (diff)
parentMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds... (diff)
downloadlinux-2ed0e21b30b53d3a94e204196e523e6c8f732b56.tar.xz
linux-2ed0e21b30b53d3a94e204196e523e6c8f732b56.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1244 commits) pkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US ipv4: Fix fib_trie rebalancing Bluetooth: Fix issue with uninitialized nsh.type in DTL-1 driver Bluetooth: Fix Kconfig issue with RFKILL integration PIM-SM: namespace changes ipv4: update ARPD help text net: use a deferred timer in rt_check_expire ieee802154: fix kconfig bool/tristate muckup bonding: initialization rework bonding: use is_zero_ether_addr bonding: network device names are case sensative bonding: elminate bad refcount code bonding: fix style issues bonding: fix destructor bonding: remove bonding read/write semaphore bonding: initialize before registration bonding: bond_create always called with default parameters x_tables: Convert printk to pr_err netfilter: conntrack: optional reliable conntrack event delivery list_nulls: add hlist_nulls_add_head and hlist_nulls_del ...
Diffstat (limited to 'drivers/net/atl1c/atl1c_main.c')
-rw-r--r--drivers/net/atl1c/atl1c_main.c73
1 files changed, 30 insertions, 43 deletions
diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c
index 83a12125b94e..cd547a205fb9 100644
--- a/drivers/net/atl1c/atl1c_main.c
+++ b/drivers/net/atl1c/atl1c_main.c
@@ -164,6 +164,24 @@ static inline void atl1c_irq_reset(struct atl1c_adapter *adapter)
}
/*
+ * atl1c_wait_until_idle - wait up to AT_HW_MAX_IDLE_DELAY reads
+ * of the idle status register until the device is actually idle
+ */
+static u32 atl1c_wait_until_idle(struct atl1c_hw *hw)
+{
+ int timeout;
+ u32 data;
+
+ for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
+ AT_READ_REG(hw, REG_IDLE_STATUS, &data);
+ if ((data & IDLE_STATUS_MASK) == 0)
+ return 0;
+ msleep(1);
+ }
+ return data;
+}
+
+/*
* atl1c_phy_config - Timer Call-back
* @data: pointer to netdev cast into an unsigned long
*/
@@ -220,11 +238,11 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter)
/* link down */
if (netif_carrier_ok(netdev)) {
hw->hibernate = true;
- atl1c_set_aspm(hw, false);
if (atl1c_stop_mac(hw) != 0)
if (netif_msg_hw(adapter))
dev_warn(&pdev->dev,
"stop mac failed\n");
+ atl1c_set_aspm(hw, false);
}
netif_carrier_off(netdev);
} else {
@@ -240,10 +258,10 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter)
adapter->link_duplex != duplex) {
adapter->link_speed = speed;
adapter->link_duplex = duplex;
+ atl1c_set_aspm(hw, true);
atl1c_enable_tx_ctrl(hw);
atl1c_enable_rx_ctrl(hw);
atl1c_setup_mac_ctrl(adapter);
- atl1c_set_aspm(hw, true);
if (netif_msg_link(adapter))
dev_info(&pdev->dev,
"%s: %s NIC Link is Up<%d Mbps %s>\n",
@@ -1106,7 +1124,6 @@ static void atl1c_configure_dma(struct atl1c_adapter *adapter)
static int atl1c_stop_mac(struct atl1c_hw *hw)
{
u32 data;
- int timeout;
AT_READ_REG(hw, REG_RXQ_CTRL, &data);
data &= ~(RXQ1_CTRL_EN | RXQ2_CTRL_EN |
@@ -1117,25 +1134,13 @@ static int atl1c_stop_mac(struct atl1c_hw *hw)
data &= ~TXQ_CTRL_EN;
AT_WRITE_REG(hw, REG_TWSI_CTRL, data);
- for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
- AT_READ_REG(hw, REG_IDLE_STATUS, &data);
- if ((data & (IDLE_STATUS_RXQ_NO_IDLE |
- IDLE_STATUS_TXQ_NO_IDLE)) == 0)
- break;
- msleep(1);
- }
+ atl1c_wait_until_idle(hw);
AT_READ_REG(hw, REG_MAC_CTRL, &data);
data &= ~(MAC_CTRL_TX_EN | MAC_CTRL_RX_EN);
AT_WRITE_REG(hw, REG_MAC_CTRL, data);
- for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
- AT_READ_REG(hw, REG_IDLE_STATUS, &data);
- if ((data & IDLE_STATUS_MASK) == 0)
- return 0;
- msleep(1);
- }
- return data;
+ return (int)atl1c_wait_until_idle(hw);
}
static void atl1c_enable_rx_ctrl(struct atl1c_hw *hw)
@@ -1178,8 +1183,6 @@ static int atl1c_reset_mac(struct atl1c_hw *hw)
{
struct atl1c_adapter *adapter = (struct atl1c_adapter *)hw->adapter;
struct pci_dev *pdev = adapter->pdev;
- u32 idle_status_data = 0;
- int timeout = 0;
int ret;
AT_WRITE_REG(hw, REG_IMR, 0);
@@ -1198,15 +1201,10 @@ static int atl1c_reset_mac(struct atl1c_hw *hw)
AT_WRITE_FLUSH(hw);
msleep(10);
/* Wait at least 10ms for All module to be Idle */
- for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
- AT_READ_REG(hw, REG_IDLE_STATUS, &idle_status_data);
- if ((idle_status_data & IDLE_STATUS_MASK) == 0)
- break;
- msleep(1);
- }
- if (timeout >= AT_HW_MAX_IDLE_DELAY) {
+
+ if (atl1c_wait_until_idle(hw)) {
dev_err(&pdev->dev,
- "MAC state machine cann't be idle since"
+ "MAC state machine can't be idle since"
" disabled for 10ms second\n");
return -1;
}
@@ -1242,9 +1240,7 @@ static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup)
AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data);
- pm_ctrl_data &= PM_CTRL_SERDES_PD_EX_L1;
- pm_ctrl_data |= ~PM_CTRL_SERDES_BUDS_RX_L1_EN;
- pm_ctrl_data |= ~PM_CTRL_SERDES_L1_EN;
+ pm_ctrl_data &= ~PM_CTRL_SERDES_PD_EX_L1;
pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK <<
PM_CTRL_L1_ENTRY_TIMER_SHIFT);
@@ -1254,19 +1250,11 @@ static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup)
pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN;
pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1;
- if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT) {
- pm_ctrl_data |= AT_ASPM_L1_TIMER <<
- PM_CTRL_L1_ENTRY_TIMER_SHIFT;
- pm_ctrl_data |= PM_CTRL_ASPM_L1_EN;
- } else
- pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN;
-
- if (hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT)
- pm_ctrl_data |= PM_CTRL_ASPM_L0S_EN;
- else
- pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
-
+ pm_ctrl_data |= PM_CTRL_SERDES_BUDS_RX_L1_EN;
+ pm_ctrl_data |= PM_CTRL_SERDES_L1_EN;
} else {
+ pm_ctrl_data &= ~PM_CTRL_SERDES_BUDS_RX_L1_EN;
+ pm_ctrl_data &= ~PM_CTRL_SERDES_L1_EN;
pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
pm_ctrl_data &= ~PM_CTRL_SERDES_PLL_L1_EN;
@@ -2123,7 +2111,6 @@ static int atl1c_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
atl1c_tx_map(adapter, skb, tpd, type);
atl1c_tx_queue(adapter, skb, tpd, type);
- netdev->trans_start = jiffies;
spin_unlock_irqrestore(&adapter->tx_lock, flags);
return NETDEV_TX_OK;
}