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Date: Sun, 25 Sep 2011 19:17:55 +0100
From: Mark Einon <mark.einon@...il.com>
To: gregkh@...e.de
Cc: devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
o.hartmann@...ovital.com, alan@...ux.intel.com,
Mark Einon <mark.einon@...il.com>
Subject: [PATCH 4/6] staging: et131x: Create et131x_[dis|en]able_txrx() calls
In et131x_netdev.c, a series of calls to enable and diasble the rx/tx engine and queue are being used in several different places.
Create two functions to encapsulate these calls, and replace many calls with just the one.
Signed-off-by: Mark Einon <mark.einon@...il.com>
---
drivers/staging/et131x/et131x.h | 2 +
drivers/staging/et131x/et131x_netdev.c | 126 ++++++++++++--------------------
2 files changed, 50 insertions(+), 78 deletions(-)
diff --git a/drivers/staging/et131x/et131x.h b/drivers/staging/et131x/et131x.h
index f52fa18..6f8fef6 100644
--- a/drivers/staging/et131x/et131x.h
+++ b/drivers/staging/et131x/et131x.h
@@ -83,6 +83,8 @@ void et1310_setup_device_for_unicast(struct et131x_adapter *adapter);
/* et131x_netdev.c */
struct net_device *et131x_device_alloc(void);
+void et131x_enable_txrx(struct net_device *netdev);
+void et131x_disable_txrx(struct net_device *netdev);
/* et1310_pm.c */
void et1310_enable_phy_coma(struct et131x_adapter *adapter);
diff --git a/drivers/staging/et131x/et131x_netdev.c b/drivers/staging/et131x/et131x_netdev.c
index 5fb4056..6ec4a0f 100644
--- a/drivers/staging/et131x/et131x_netdev.c
+++ b/drivers/staging/et131x/et131x_netdev.c
@@ -137,6 +137,45 @@ static struct net_device_stats *et131x_stats(struct net_device *netdev)
}
/**
+ * et131x_enable_txrx - Enable tx/rx queues
+ * @netdev: device to be enabled
+ */
+void et131x_enable_txrx(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ /* Enable the Tx and Rx DMA engines (if not already enabled) */
+ et131x_rx_dma_enable(adapter);
+ et131x_tx_dma_enable(adapter);
+
+ /* Enable device interrupts */
+ if (adapter->flags & fMP_ADAPTER_INTERRUPT_IN_USE)
+ et131x_enable_interrupts(adapter);
+
+ /* We're ready to move some data, so start the queue */
+ netif_start_queue(netdev);
+}
+
+/**
+ * et131x_disable_txrx - Disable tx/rx queues
+ * @netdev: device to be disabled
+ */
+void et131x_disable_txrx(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ /* First thing is to stop the queue */
+ netif_stop_queue(netdev);
+
+ /* Stop the Tx and Rx DMA engines */
+ et131x_rx_dma_disable(adapter);
+ et131x_tx_dma_disable(adapter);
+
+ /* Disable device interrupts */
+ et131x_disable_interrupts(adapter);
+}
+
+/**
* et131x_open - Open the device for use.
* @netdev: device to be opened
*
@@ -159,19 +198,10 @@ int et131x_open(struct net_device *netdev)
return result;
}
- /* Enable the Tx and Rx DMA engines (if not already enabled) */
- et131x_rx_dma_enable(adapter);
- et131x_tx_dma_enable(adapter);
-
- /* Enable device interrupts */
- et131x_enable_interrupts(adapter);
-
adapter->flags |= fMP_ADAPTER_INTERRUPT_IN_USE;
-
+ et131x_enable_txrx(netdev);
phy_start(adapter->phydev);
- /* We're ready to move some data, so start the queue */
- netif_start_queue(netdev);
return result;
}
@@ -188,15 +218,7 @@ int et131x_close(struct net_device *netdev)
/* Save the timestamp for the TX watchdog, prevent a timeout */
netdev->trans_start = jiffies;
- /* First thing is to stop the queue */
- netif_stop_queue(netdev);
-
- /* Stop the Tx and Rx DMA engines */
- et131x_rx_dma_disable(adapter);
- et131x_tx_dma_disable(adapter);
-
- /* Disable device interrupts */
- et131x_disable_interrupts(adapter);
+ et131x_disable_txrx(netdev);
/* Deregistering ISR */
adapter->flags &= ~fMP_ADAPTER_INTERRUPT_IN_USE;
@@ -442,29 +464,9 @@ void et131x_tx_timeout(struct net_device *netdev)
adapter->net_stats.tx_errors++;
- /* perform reset */
- /* First thing is to stop the queue */
- netif_stop_queue(netdev);
-
- /* Stop the Tx and Rx DMA engines */
- et131x_rx_dma_disable(adapter);
- et131x_tx_dma_disable(adapter);
-
- /* Disable device interrupts */
- et131x_disable_interrupts(adapter);
-
- /*
- * Enable the Tx and Rx DMA engines
- * (if not already enabled)
- */
- et131x_rx_dma_enable(adapter);
- et131x_tx_dma_enable(adapter);
-
- /* Enable device interrupts */
- et131x_enable_interrupts(adapter);
-
- /* We're ready to move some data, so start the queue */
- netif_start_queue(netdev);
+ /* perform reset of tx/rx */
+ et131x_disable_txrx(netdev);
+ et131x_enable_txrx(netdev);
return;
}
}
@@ -488,15 +490,7 @@ int et131x_change_mtu(struct net_device *netdev, int new_mtu)
if (new_mtu < 64 || new_mtu > 9216)
return -EINVAL;
- /* Stop the netif queue */
- netif_stop_queue(netdev);
-
- /* Stop the Tx and Rx DMA engines */
- et131x_rx_dma_disable(adapter);
- et131x_tx_dma_disable(adapter);
-
- /* Disable device interrupts */
- et131x_disable_interrupts(adapter);
+ et131x_disable_txrx(netdev);
et131x_handle_send_interrupt(adapter);
et131x_handle_recv_interrupt(adapter);
@@ -526,16 +520,8 @@ int et131x_change_mtu(struct net_device *netdev, int new_mtu)
/* Init the device with the new settings */
et131x_adapter_setup(adapter);
- /* Enable interrupts */
- if (adapter->flags & fMP_ADAPTER_INTERRUPT_IN_USE)
- et131x_enable_interrupts(adapter);
+ et131x_enable_txrx(netdev);
- /* Restart the Tx and Rx DMA engines */
- et131x_rx_dma_enable(adapter);
- et131x_tx_dma_enable(adapter);
-
- /* Restart the netif queue */
- netif_wake_queue(netdev);
return result;
}
@@ -563,15 +549,7 @@ int et131x_set_mac_addr(struct net_device *netdev, void *new_mac)
if (!is_valid_ether_addr(address->sa_data))
return -EINVAL;
- /* Stop the netif queue */
- netif_stop_queue(netdev);
-
- /* Stop the Tx and Rx DMA engines */
- et131x_rx_dma_disable(adapter);
- et131x_tx_dma_disable(adapter);
-
- /* Disable device interrupts */
- et131x_disable_interrupts(adapter);
+ et131x_disable_txrx(netdev);
et131x_handle_send_interrupt(adapter);
et131x_handle_recv_interrupt(adapter);
@@ -603,16 +581,8 @@ int et131x_set_mac_addr(struct net_device *netdev, void *new_mac)
/* Init the device with the new settings */
et131x_adapter_setup(adapter);
- /* Enable interrupts */
- if (adapter->flags & fMP_ADAPTER_INTERRUPT_IN_USE)
- et131x_enable_interrupts(adapter);
-
- /* Restart the Tx and Rx DMA engines */
- et131x_rx_dma_enable(adapter);
- et131x_tx_dma_enable(adapter);
+ et131x_enable_txrx(netdev);
- /* Restart the netif queue */
- netif_wake_queue(netdev);
return result;
}
--
1.7.6
--
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