leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[PATCH] mv643xx_eth: Merge open and stop helper functions

Browse Source 
Move code from helper functions mv643xx_eth_real_open and mv643xx_eth_real_stop
as they are no longer needed.

Signed-off-by Dale Farnsworth <dale@farnsworth.org>

 mv643xx_eth.c |  109 +++++++++++++++++++++++-----------------------------------
 1 file changed, 45 insertions(+), 64 deletions(-)

Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Dale Farnsworth 2006-01-16 16:59:21 -07:00 committed by Jeff Garzik
parent 4476e0e4c7
commit ab4384a658
1 changed files with 45 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

109
drivers/net/mv643xx_eth.c
View File

@ -83,8 +83,8 @@ static int eth_port_link_is_up(unsigned int eth_port_num);
static void eth_port_uc_addr_get(struct net_device *dev,
unsigned char *MacAddr);
static void eth_port_set_multicast_list(struct net_device *);
static int mv643xx_eth_real_open(struct net_device *);
static int mv643xx_eth_real_stop(struct net_device *);
static int mv643xx_eth_open(struct net_device *);
static int mv643xx_eth_stop(struct net_device *);
static int mv643xx_eth_change_mtu(struct net_device *, int);
static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *);
static void eth_port_init_mac_tables(unsigned int eth_port_num);
@ -140,11 +140,8 @@ static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu)
* to memory is full, which might fail the open function.
*/
if (netif_running(dev)) {
if (mv643xx_eth_real_stop(dev))
printk(KERN_ERR
"%s: Fatal error on stopping device\n",
dev->name);
if (mv643xx_eth_real_open(dev))
mv643xx_eth_stop(dev);
if (mv643xx_eth_open(dev))
printk(KERN_ERR
"%s: Fatal error on opening device\n",
dev->name);
@ -631,42 +628,6 @@ static unsigned int eth_port_set_tx_coal(unsigned int eth_port_num,
return coal;
}
/*
* mv643xx_eth_open
*
* This function is called when openning the network device. The function
* should initialize all the hardware, initialize cyclic Rx/Tx
* descriptors chain and buffers and allocate an IRQ to the network
* device.
*
* Input : a pointer to the network device structure
*
* Output : zero of success , nonzero if fails.
*/
static int mv643xx_eth_open(struct net_device *dev)
{
struct mv643xx_private *mp = netdev_priv(dev);
unsigned int port_num = mp->port_num;
int err;
err = request_irq(dev->irq, mv643xx_eth_int_handler,
SA_SHIRQ | SA_SAMPLE_RANDOM, dev->name, dev);
if (err) {
printk(KERN_ERR "Can not assign IRQ number to MV643XX_eth%d\n",
port_num);
return -EAGAIN;
}
if (mv643xx_eth_real_open(dev)) {
printk("%s: Error opening interface\n", dev->name);
free_irq(dev->irq, dev);
err = -EBUSY;
}
return err;
}
/*
* ether_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory.
*
@ -759,12 +720,33 @@ static void ether_init_tx_desc_ring(struct mv643xx_private *mp)
mp->port_tx_queue_command |= 1;
}
/* Helper function for mv643xx_eth_open */
static int mv643xx_eth_real_open(struct net_device *dev)
/*
* mv643xx_eth_open
*
* This function is called when openning the network device. The function
* should initialize all the hardware, initialize cyclic Rx/Tx
* descriptors chain and buffers and allocate an IRQ to the network
* device.
*
* Input : a pointer to the network device structure
*
* Output : zero of success , nonzero if fails.
*/
static int mv643xx_eth_open(struct net_device *dev)
{
struct mv643xx_private *mp = netdev_priv(dev);
unsigned int port_num = mp->port_num;
unsigned int size;
int err;
err = request_irq(dev->irq, mv643xx_eth_int_handler,
SA_SHIRQ | SA_SAMPLE_RANDOM, dev->name, dev);
if (err) {
printk(KERN_ERR "Can not assign IRQ number to MV643XX_eth%d\n",
port_num);
return -EAGAIN;
}
/* Stop RX Queues */
mv_write(MV643XX_ETH_RECEIVE_QUEUE_COMMAND_REG(port_num), 0x0000ff00);
@ -788,14 +770,15 @@ static int mv643xx_eth_real_open(struct net_device *dev)
GFP_KERNEL);
if (!mp->rx_skb) {
printk(KERN_ERR "%s: Cannot allocate Rx skb ring\n", dev->name);
return -ENOMEM;
err = -ENOMEM;
goto out_free_irq;
}
mp->tx_skb = kmalloc(sizeof(*mp->tx_skb) * mp->tx_ring_size,
GFP_KERNEL);
if (!mp->tx_skb) {
printk(KERN_ERR "%s: Cannot allocate Tx skb ring\n", dev->name);
kfree(mp->rx_skb);
return -ENOMEM;
err = -ENOMEM;
goto out_free_rx_skb;
}
/* Allocate TX ring */
@ -815,9 +798,8 @@ static int mv643xx_eth_real_open(struct net_device *dev)
if (!mp->p_tx_desc_area) {
printk(KERN_ERR "%s: Cannot allocate Tx Ring (size %d bytes)\n",
dev->name, size);
kfree(mp->rx_skb);
kfree(mp->tx_skb);
return -ENOMEM;
err = -ENOMEM;
goto out_free_tx_skb;
}
BUG_ON((u32) mp->p_tx_desc_area & 0xf); /* check 16-byte alignment */
memset((void *)mp->p_tx_desc_area, 0, mp->tx_desc_area_size);
@ -848,9 +830,8 @@ static int mv643xx_eth_real_open(struct net_device *dev)
else
dma_free_coherent(NULL, mp->tx_desc_area_size,
mp->p_tx_desc_area, mp->tx_desc_dma);
kfree(mp->rx_skb);
kfree(mp->tx_skb);
return -ENOMEM;
err = -ENOMEM;
goto out_free_tx_skb;
}
memset((void *)mp->p_rx_desc_area, 0, size);
@ -882,6 +863,15 @@ static int mv643xx_eth_real_open(struct net_device *dev)
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
INT_CAUSE_UNMASK_ALL);
return 0;
out_free_tx_skb:
kfree(mp->tx_skb);
out_free_rx_skb:
kfree(mp->rx_skb);
out_free_irq:
free_irq(dev->irq, dev);
return err;
}
static void mv643xx_eth_free_tx_rings(struct net_device *dev)
@ -955,9 +945,7 @@ static void mv643xx_eth_free_rx_rings(struct net_device *dev)
* Output : zero if success , nonzero if fails
*/
/* Helper function for mv643xx_eth_stop */
static int mv643xx_eth_real_stop(struct net_device *dev)
static int mv643xx_eth_stop(struct net_device *dev)
{
struct mv643xx_private *mp = netdev_priv(dev);
unsigned int port_num = mp->port_num;
@ -986,13 +974,6 @@ static int mv643xx_eth_real_stop(struct net_device *dev)
netif_poll_enable(dev);
#endif
return 0;
}
static int mv643xx_eth_stop(struct net_device *dev)
{
mv643xx_eth_real_stop(dev);
free_irq(dev->irq, dev);
return 0;