UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[PATCH] mv643xx_eth: Remove needless mask of extended intr register 

All interrupts controlled by the extended mask register are also
masked by a bit in the main mask register, so there is no need to
directly manipulate the extended mask register.

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

 mv643xx_eth.c |   81 ++++++++++++++++++----------------------------------------
 1 file changed, 26 insertions(+), 55 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Dale Farnsworth 2006-01-16 17:00:24 -07:00 committed by Jeff Garzik
parent ab4384a658
commit c2e5b352fc
1 changed files with 26 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
drivers/net/mv643xx_eth.c
View File

@ -62,10 +62,10 @@
#define WRAP HW_IP_ALIGN + ETH_HLEN + VLAN_HLEN + FCS_LEN
#define RX_SKB_SIZE ((dev->mtu + WRAP + 7) & ~0x7)
#define INT_CAUSE_UNMASK_ALL 0x0007ffff
#define INT_CAUSE_UNMASK_ALL_EXT 0x0011ffff
#define INT_CAUSE_MASK_ALL 0x00000000
#define INT_CAUSE_MASK_ALL_EXT 0x00000000
#define INT_UNMASK_ALL 0x0007ffff
#define INT_UNMASK_ALL_EXT 0x0011ffff
#define INT_MASK_ALL 0x00000000
#define INT_MASK_ALL_EXT 0x00000000
#define INT_CAUSE_CHECK_BITS INT_CAUSE_UNMASK_ALL
#define INT_CAUSE_CHECK_BITS_EXT INT_CAUSE_UNMASK_ALL_EXT
@ -205,7 +205,7 @@ static void mv643xx_eth_rx_task(void *data)
else {
/* Return interrupts */
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(mp->port_num),
INT_CAUSE_UNMASK_ALL);
INT_UNMASK_ALL);
}
#endif
}
@ -470,12 +470,12 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id,
/* Read interrupt cause registers */
eth_int_cause = mv_read(MV643XX_ETH_INTERRUPT_CAUSE_REG(port_num)) &
INT_CAUSE_UNMASK_ALL;
INT_UNMASK_ALL;
if (eth_int_cause & BIT1)
eth_int_cause_ext = mv_read(
MV643XX_ETH_INTERRUPT_CAUSE_EXTEND_REG(port_num)) &
INT_CAUSE_UNMASK_ALL_EXT;
INT_UNMASK_ALL_EXT;
#ifdef MV643XX_NAPI
if (!(eth_int_cause & 0x0007fffd)) {
@ -500,11 +500,10 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id,
} else {
if (netif_rx_schedule_prep(dev)) {
/* Mask all the interrupts */
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num), 0);
mv_write(MV643XX_ETH_INTERRUPT_EXTEND_MASK_REG
(port_num), 0);
/* ensure previous writes have taken effect */
mv_read(MV643XX_ETH_INTERRUPT_EXTEND_MASK_REG(port_num));
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
INT_MASK_ALL);
/* wait for previous write to complete */
mv_read(MV643XX_ETH_INTERRUPT_MASK_REG(port_num));
__netif_rx_schedule(dev);
}
#else
@ -517,9 +516,9 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id,
* with skb's.
*/
#ifdef MV643XX_RX_QUEUE_FILL_ON_TASK
/* Unmask all interrupts on ethernet port */
/* Mask all interrupts on ethernet port */
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
INT_CAUSE_MASK_ALL);
INT_MASK_ALL);
/* wait for previous write to take effect */
mv_read(MV643XX_ETH_INTERRUPT_MASK_REG(port_num));
@ -857,11 +856,10 @@ static int mv643xx_eth_open(struct net_device *dev)
/* Unmask phy and link status changes interrupts */
mv_write(MV643XX_ETH_INTERRUPT_EXTEND_MASK_REG(port_num),
INT_CAUSE_UNMASK_ALL_EXT);
INT_UNMASK_ALL_EXT);
/* Unmask RX buffer and TX end interrupt */
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
INT_CAUSE_UNMASK_ALL);
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num), INT_UNMASK_ALL);
return 0;
out_free_tx_skb:
@ -950,13 +948,9 @@ static int mv643xx_eth_stop(struct net_device *dev)
struct mv643xx_private *mp = netdev_priv(dev);
unsigned int port_num = mp->port_num;
/* Mask RX buffer and TX end interrupt */
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num), 0);
/* Mask phy and link status changes interrupts */
mv_write(MV643XX_ETH_INTERRUPT_EXTEND_MASK_REG(port_num), 0);
/* ensure previous writes have taken effect */
/* Mask all interrupts on ethernet port */
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num), INT_MASK_ALL);
/* wait for previous write to complete */
mv_read(MV643XX_ETH_INTERRUPT_MASK_REG(port_num));
#ifdef MV643XX_NAPI
@ -1040,9 +1034,7 @@ static int mv643xx_poll(struct net_device *dev, int *budget)
mv_write(MV643XX_ETH_INTERRUPT_CAUSE_REG(port_num), 0);
mv_write(MV643XX_ETH_INTERRUPT_CAUSE_EXTEND_REG(port_num), 0);
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
INT_CAUSE_UNMASK_ALL);
mv_write(MV643XX_ETH_INTERRUPT_EXTEND_MASK_REG(port_num),
INT_CAUSE_UNMASK_ALL_EXT);
INT_UNMASK_ALL);
}
return done ? 0 : 1;
@ -1307,39 +1299,18 @@ static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev)
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static inline void mv643xx_enable_irq(struct mv643xx_private *mp)
{
int port_num = mp->port_num;
unsigned long flags;
spin_lock_irqsave(&mp->lock, flags);
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
INT_CAUSE_UNMASK_ALL);
mv_write(MV643XX_ETH_INTERRUPT_EXTEND_MASK_REG(port_num),
INT_CAUSE_UNMASK_ALL_EXT);
spin_unlock_irqrestore(&mp->lock, flags);
}
static inline void mv643xx_disable_irq(struct mv643xx_private *mp)
{
int port_num = mp->port_num;
unsigned long flags;
spin_lock_irqsave(&mp->lock, flags);
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
INT_CAUSE_MASK_ALL);
mv_write(MV643XX_ETH_INTERRUPT_EXTEND_MASK_REG(port_num),
INT_CAUSE_MASK_ALL_EXT);
spin_unlock_irqrestore(&mp->lock, flags);
}
static void mv643xx_netpoll(struct net_device *netdev)
{
struct mv643xx_private *mp = netdev_priv(netdev);
int port_num = mp->port_num;
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num), INT_MASK_ALL);
/* wait for previous write to complete */
mv_read(MV643XX_ETH_INTERRUPT_MASK_REG(port_num));
mv643xx_disable_irq(mp);
mv643xx_eth_int_handler(netdev->irq, netdev, NULL);
mv643xx_enable_irq(mp);
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num), INT_UNMASK_ALL);
}
#endif