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Commit c930a662 authored by Joe Perches's avatar Joe Perches Committed by David S. Miller
Browse files

atl1c_main.c: add wait_for_idle routine 



Slight refactoring of duplicated wait for idle checks
Spelling fix

Signed-off-by: default avatarJoe Perches <joe@perches.com>
Acked-by: default avatar <jie.yang@atheros.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 56d417b1

drivers/net/atl1c/atl1c_main.c

+23 −25
Original line number Diff line number Diff line
@@ -163,6 +163,24 @@ static inline void atl1c_irq_reset(struct atl1c_adapter *adapter) 
	atl1c_irq_enable(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
@@ -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;

	}