*/
#include <linux/init.h>
#include <linux/dma-mapping.h>
+#include <linux/in.h>
+#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <linux/etherdevice.h>
#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
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);
* 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);
else {
/* Return interrupts */
mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(mp->port_num),
- INT_CAUSE_UNMASK_ALL);
+ INT_UNMASK_ALL);
}
#endif
}
netif_rx(skb);
#endif
}
+ dev->last_rx = jiffies;
}
return received_packets;
*/
static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id,
- struct pt_regs *regs)
+ struct pt_regs *regs)
{
struct net_device *dev = (struct net_device *)dev_id;
struct mv643xx_private *mp = netdev_priv(dev);
/* 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)) {
} 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
* 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));
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.
*
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);
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 */
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);
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);
/* 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:
+ 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)
struct mv643xx_private *mp = netdev_priv(dev);
unsigned int port_num = mp->port_num;
unsigned int curr;
+ struct sk_buff *skb;
/* Stop Tx Queues */
mv_write(MV643XX_ETH_TRANSMIT_QUEUE_COMMAND_REG(port_num), 0x0000ff00);
/* Free outstanding skb's on TX rings */
for (curr = 0; mp->tx_ring_skbs && curr < mp->tx_ring_size; curr++) {
- if (mp->tx_skb[curr]) {
- dev_kfree_skb(mp->tx_skb[curr]);
+ skb = mp->tx_skb[curr];
+ if (skb) {
+ mp->tx_ring_skbs -= skb_shinfo(skb)->nr_frags;
+ dev_kfree_skb(skb);
mp->tx_ring_skbs--;
}
}
* 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;
- /* 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
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;
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;
static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb)
{
- unsigned int frag;
- skb_frag_t *fragp;
-
- for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
- fragp = &skb_shinfo(skb)->frags[frag];
- if (fragp->size <= 8 && fragp->page_offset & 0x7)
- return 1;
+ unsigned int frag;
+ skb_frag_t *fragp;
- }
- return 0;
+ for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
+ fragp = &skb_shinfo(skb)->frags[frag];
+ if (fragp->size <= 8 && fragp->page_offset & 0x7)
+ return 1;
+ }
+ return 0;
}
}
#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
*/
if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI)) {
for (table_index = 0; table_index <= 0xFC; table_index += 4) {
- /* Set all entries in DA filter special multicast
- * table (Ex_dFSMT)
- * Set for ETH_Q0 for now
- * Bits
- * 0 Accept=1, Drop=0
- * 3-1 Queue ETH_Q0=0
- * 7-4 Reserved = 0;
- */
- mv_write(MV643XX_ETH_DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE(eth_port_num) + table_index, 0x01010101);
-
- /* Set all entries in DA filter other multicast
- * table (Ex_dFOMT)
- * Set for ETH_Q0 for now
- * Bits
- * 0 Accept=1, Drop=0
- * 3-1 Queue ETH_Q0=0
- * 7-4 Reserved = 0;
- */
- mv_write(MV643XX_ETH_DA_FILTER_OTHER_MULTICAST_TABLE_BASE(eth_port_num) + table_index, 0x01010101);
- }
+ /* Set all entries in DA filter special multicast
+ * table (Ex_dFSMT)
+ * Set for ETH_Q0 for now
+ * Bits
+ * 0 Accept=1, Drop=0
+ * 3-1 Queue ETH_Q0=0
+ * 7-4 Reserved = 0;
+ */
+ mv_write(MV643XX_ETH_DA_FILTER_SPECIAL_MULTICAST_TABLE_BASE(eth_port_num) + table_index, 0x01010101);
+
+ /* Set all entries in DA filter other multicast
+ * table (Ex_dFOMT)
+ * Set for ETH_Q0 for now
+ * Bits
+ * 0 Accept=1, Drop=0
+ * 3-1 Queue ETH_Q0=0
+ * 7-4 Reserved = 0;
+ */
+ mv_write(MV643XX_ETH_DA_FILTER_OTHER_MULTICAST_TABLE_BASE(eth_port_num) + table_index, 0x01010101);
+ }
return;
}
struct eth_tx_desc *current_descriptor;
struct eth_tx_desc *first_descriptor;
u32 command;
- unsigned long flags;
/* Do not process Tx ring in case of Tx ring resource error */
if (mp->tx_resource_err)
return ETH_ERROR;
}
- spin_lock_irqsave(&mp->lock, flags);
-
mp->tx_ring_skbs++;
BUG_ON(mp->tx_ring_skbs > mp->tx_ring_size);
mp->tx_resource_err = 1;
mp->tx_curr_desc_q = tx_first_desc;
- spin_unlock_irqrestore(&mp->lock, flags);
-
return ETH_QUEUE_LAST_RESOURCE;
}
mp->tx_curr_desc_q = tx_next_desc;
- spin_unlock_irqrestore(&mp->lock, flags);
-
return ETH_OK;
}
#else
int tx_desc_used;
struct eth_tx_desc *current_descriptor;
unsigned int command_status;
- unsigned long flags;
/* Do not process Tx ring in case of Tx ring resource error */
if (mp->tx_resource_err)
return ETH_QUEUE_FULL;
- spin_lock_irqsave(&mp->lock, flags);
-
mp->tx_ring_skbs++;
BUG_ON(mp->tx_ring_skbs > mp->tx_ring_size);
/* Check for ring index overlap in the Tx desc ring */
if (tx_desc_curr == tx_desc_used) {
mp->tx_resource_err = 1;
-
- spin_unlock_irqrestore(&mp->lock, flags);
return ETH_QUEUE_LAST_RESOURCE;
}
- spin_unlock_irqrestore(&mp->lock, flags);
return ETH_OK;
}
#endif
p_pkt_info->return_info = mp->rx_skb[rx_curr_desc];
p_pkt_info->l4i_chk = p_rx_desc->buf_size;
- /* Clean the return info field to indicate that the packet has been */
- /* moved to the upper layers */
+ /*
+ * Clean the return info field to indicate that the
+ * packet has been moved to the upper layers
+ */
mp->rx_skb[rx_curr_desc] = NULL;
/* Update current index in data structure */
};
#define MV643XX_STAT(m) sizeof(((struct mv643xx_private *)0)->m), \
- offsetof(struct mv643xx_private, m)
+ offsetof(struct mv643xx_private, m)
static const struct mv643xx_stats mv643xx_gstrings_stats[] = {
{ "rx_packets", MV643XX_STAT(stats.rx_packets) },
return 0;
}
-static void
-mv643xx_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *drvinfo)
+static void mv643xx_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
{
strncpy(drvinfo->driver, mv643xx_driver_name, 32);
strncpy(drvinfo->version, mv643xx_driver_version, 32);
drvinfo->n_stats = MV643XX_STATS_LEN;
}
-static int
-mv643xx_get_stats_count(struct net_device *netdev)
+static int mv643xx_get_stats_count(struct net_device *netdev)
{
return MV643XX_STATS_LEN;
}
-static void
-mv643xx_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats *stats, uint64_t *data)
+static void mv643xx_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *stats, uint64_t *data)
{
struct mv643xx_private *mp = netdev->priv;
int i;
eth_update_mib_counters(mp);
- for(i = 0; i < MV643XX_STATS_LEN; i++) {
+ for (i = 0; i < MV643XX_STATS_LEN; i++) {
char *p = (char *)mp+mv643xx_gstrings_stats[i].stat_offset;
- data[i] = (mv643xx_gstrings_stats[i].sizeof_stat ==
+ data[i] = (mv643xx_gstrings_stats[i].sizeof_stat ==
sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
}
}
-static void
-mv643xx_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
+static void mv643xx_get_strings(struct net_device *netdev, uint32_t stringset,
+ uint8_t *data)
{
int i;
switch(stringset) {
case ETH_SS_STATS:
for (i=0; i < MV643XX_STATS_LEN; i++) {
- memcpy(data + i * ETH_GSTRING_LEN,
- mv643xx_gstrings_stats[i].stat_string,
- ETH_GSTRING_LEN);
+ memcpy(data + i * ETH_GSTRING_LEN,
+ mv643xx_gstrings_stats[i].stat_string,
+ ETH_GSTRING_LEN);
}
break;
}
projects / linux-2.6-omap-h63xx.git / blobdiff