MODULE_DESCRIPTION("TI AR7 ethernet driver (CPMAC)");
MODULE_LICENSE("GPL");
-static int rx_ring_size = 64;
static int disable_napi;
static int debug_level = 8;
static int dumb_switch;
-module_param(rx_ring_size, int, 0644);
module_param(disable_napi, int, 0644);
/* Next 2 are only used in cpmac_probe, so it's pointless to change them */
module_param(debug_level, int, 0444);
module_param(dumb_switch, int, 0444);
-MODULE_PARM_DESC(rx_ring_size, "Size of rx ring (in skbs)");
MODULE_PARM_DESC(disable_napi, "Disable NAPI polling");
MODULE_PARM_DESC(debug_level, "Number of NETIF_MSG bits to enable");
MODULE_PARM_DESC(dumb_switch, "Assume switch is not connected to MDIO bus");
+/* stolen from net/ieee80211.h */
+#ifndef MAC_FMT
+#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
+#define MAC_ARG(x) ((u8*)(x))[0], ((u8*)(x))[1], ((u8*)(x))[2], \
+ ((u8*)(x))[3], ((u8*)(x))[4], ((u8*)(x))[5]
+#endif
/* frame size + 802.1q tag */
#define CPMAC_SKB_SIZE (ETH_FRAME_LEN + 4)
#define CPMAC_TX_RING_SIZE 8
#define CPMAC_TX_ACK(channel) (0x0640 + (channel) * 4)
#define CPMAC_RX_ACK(channel) (0x0660 + (channel) * 4)
#define CPMAC_REG_END 0x0680
-/*
+/*
* Rx/Tx statistics
* TODO: use some of them to fill stats in cpmac_stats()
*/
};
struct cpmac_priv {
- struct net_device_stats stats;
spinlock_t lock;
struct cpmac_desc *rx_head;
int tx_head, tx_tail;
+ int ring_size;
struct cpmac_desc *desc_ring;
dma_addr_t dma_ring;
void __iomem *regs;
struct mii_bus *mii_bus;
struct phy_device *phy;
char phy_name[BUS_ID_SIZE];
- struct plat_cpmac_data *config;
int oldlink, oldspeed, oldduplex;
u32 msg_enable;
- struct net_device *dev;
- struct work_struct alloc_work;
+ struct platform_device *pdev;
};
static irqreturn_t cpmac_irq(int, void *);
return 0;
}
-static int cpmac_set_mac_address(struct net_device *dev, void *addr)
-{
- struct sockaddr *sa = addr;
-
- if (dev->flags & IFF_UP)
- return -EBUSY;
-
- memcpy(dev->dev_addr, sa->sa_data, dev->addr_len);
-
- return 0;
-}
-
static void cpmac_set_multicast_list(struct net_device *dev)
{
struct dev_mc_list *iter;
cpmac_write(priv->regs, CPMAC_MAC_HASH_LO, 0xffffffff);
cpmac_write(priv->regs, CPMAC_MAC_HASH_HI, 0xffffffff);
} else {
- /*
+ /*
* cpmac uses some strange mac address hashing
* (not crc32)
*/
skb_put(desc->skb, desc->datalen);
desc->skb->protocol = eth_type_trans(desc->skb, dev);
desc->skb->ip_summed = CHECKSUM_NONE;
- priv->stats.rx_packets++;
- priv->stats.rx_bytes += desc->datalen;
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += desc->datalen;
result = desc->skb;
dma_unmap_single(&dev->dev, desc->data_mapping, CPMAC_SKB_SIZE,
DMA_FROM_DEVICE);
}
} else {
if (netif_msg_rx_err(priv) && net_ratelimit())
- printk(KERN_WARNING
+ printk(KERN_WARNING
"%s: low on skbs, dropping packet\n", dev->name);
- priv->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
}
spin_unlock_irqrestore(&priv->lock, flags);
if (unlikely(skb_padto(skb, ETH_ZLEN))) {
if (netif_msg_tx_err(priv) && net_ratelimit())
- printk(KERN_WARNING "%s: tx: padding failed, dropping\n",
+ printk(KERN_WARNING"%s: tx: padding failed, dropping\n",
dev->name);
spin_lock_irqsave(&priv->lock, flags);
- priv->stats.tx_dropped++;
+ dev->stats.tx_dropped++;
spin_unlock_irqrestore(&priv->lock, flags);
return -ENOMEM;
}
if (netif_msg_tx_err(priv) && net_ratelimit())
printk(KERN_WARNING "%s: tx dma ring full, dropping\n",
dev->name);
- priv->stats.tx_dropped++;
+ dev->stats.tx_dropped++;
spin_unlock_irqrestore(&priv->lock, flags);
dev_kfree_skb_any(skb);
return -ENOMEM;
desc = &priv->desc_ring[channel];
cpmac_write(priv->regs, CPMAC_TX_ACK(channel), (u32)desc->mapping);
if (likely(desc->skb)) {
- priv->stats.tx_packets++;
- priv->stats.tx_bytes += desc->skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += desc->skb->len;
dma_unmap_single(&dev->dev, desc->data_mapping, desc->skb->len,
DMA_TO_DEVICE);
{
int i;
struct cpmac_priv *priv = netdev_priv(dev);
+ struct plat_cpmac_data *pdata = priv->pdev->dev.platform_data;
- ar7_device_reset(priv->config->reset_bit);
+ ar7_device_reset(pdata->reset_bit);
cpmac_write(priv->regs, CPMAC_RX_CONTROL,
cpmac_read(priv->regs, CPMAC_RX_CONTROL) & ~1);
cpmac_write(priv->regs, CPMAC_TX_CONTROL,
desc = priv->rx_head;
- for (i = 0; i < rx_ring_size; i++) {
+ for (i = 0; i < priv->ring_size; i++) {
desc->buflen = CPMAC_SKB_SIZE;
if ((desc->dataflags & CPMAC_OWN) == 0) {
if (netif_msg_rx_err(priv) && net_ratelimit())
if (unlikely(netif_msg_hw(priv)))
cpmac_dump_desc(dev, desc);
desc->dataflags = CPMAC_OWN;
- priv->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
}
desc = desc->next;
}
static irqreturn_t cpmac_irq(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
- struct cpmac_priv *priv;
+ struct cpmac_priv *priv;
u32 status;
if (!dev)
struct cpmac_priv *priv = netdev_priv(dev);
struct cpmac_desc *desc;
- priv->stats.tx_errors++;
+ dev->stats.tx_errors++;
desc = &priv->desc_ring[priv->tx_head++];
priv->tx_head %= 8;
if (netif_msg_tx_err(priv) && net_ratelimit())
return -EINVAL;
}
+static void cpmac_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
+{
+ struct cpmac_priv *priv = netdev_priv(dev);
+
+ ring->rx_max_pending = 1024;
+ ring->rx_mini_max_pending = 1;
+ ring->rx_jumbo_max_pending = 1;
+ ring->tx_max_pending = 1;
+
+ ring->rx_pending = priv->ring_size;
+ ring->rx_mini_pending = 1;
+ ring->rx_jumbo_pending = 1;
+ ring->tx_pending = 1;
+}
+
+static int cpmac_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
+{
+ struct cpmac_priv *priv = netdev_priv(dev);
+
+ if (dev->flags && IFF_UP)
+ return -EBUSY;
+ priv->ring_size = ring->rx_pending;
+ return 0;
+}
+
static void cpmac_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
.set_settings = cpmac_set_settings,
.get_drvinfo = cpmac_get_drvinfo,
.get_link = ethtool_op_get_link,
+ .get_ringparam = cpmac_get_ringparam,
+ .set_ringparam = cpmac_set_ringparam,
};
-static struct net_device_stats *cpmac_stats(struct net_device *dev)
-{
- struct cpmac_priv *priv = netdev_priv(dev);
-
- if (netif_device_present(dev))
- return &priv->stats;
-
- return NULL;
-}
-
-static int cpmac_change_mtu(struct net_device *dev, int mtu)
-{
- unsigned long flags;
- struct cpmac_priv *priv = netdev_priv(dev);
- spinlock_t *lock = &priv->lock;
-
- if ((mtu < 68) || (mtu > 1500))
- return -EINVAL;
-
- spin_lock_irqsave(lock, flags);
- dev->mtu = mtu;
- spin_unlock_irqrestore(lock, flags);
-
- return 0;
-}
-
static void cpmac_adjust_link(struct net_device *dev)
{
struct cpmac_priv *priv = netdev_priv(dev);
{
int i, size, res;
struct cpmac_priv *priv = netdev_priv(dev);
+ struct resource *mem;
struct cpmac_desc *desc;
struct sk_buff *skb;
return PTR_ERR(priv->phy);
}
- if (!request_mem_region(dev->mem_start, dev->mem_end -
- dev->mem_start, dev->name)) {
+ mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
+ if (!request_mem_region(mem->start, mem->end - mem->start, dev->name)) {
if (netif_msg_drv(priv))
printk(KERN_ERR "%s: failed to request registers\n",
dev->name);
goto fail_reserve;
}
- priv->regs = ioremap(dev->mem_start, dev->mem_end -
- dev->mem_start);
+ priv->regs = ioremap(mem->start, mem->end - mem->start);
if (!priv->regs) {
if (netif_msg_drv(priv))
printk(KERN_ERR "%s: failed to remap registers\n",
}
priv->rx_head = NULL;
- size = rx_ring_size + CPMAC_TX_RING_SIZE;
+ size = priv->ring_size + CPMAC_TX_RING_SIZE;
priv->desc_ring = dma_alloc_coherent(&dev->dev,
sizeof(struct cpmac_desc) * size,
&priv->dma_ring,
for (i = 0; i < size; i++)
priv->desc_ring[i].mapping = priv->dma_ring + sizeof(*desc) * i;
- for (i = 0, desc = &priv->rx_head[i]; i < rx_ring_size; i++, desc++) {
+ for (i = 0, desc = &priv->rx_head[i]; i < priv->ring_size; i++, desc++) {
skb = netdev_alloc_skb(dev, CPMAC_SKB_SIZE);
if (unlikely(!skb)) {
res = -ENOMEM;
desc->hw_data = (u32)desc->data_mapping;
desc->buflen = CPMAC_SKB_SIZE;
desc->dataflags = CPMAC_OWN;
- desc->next = &priv->rx_head[(i + 1) % rx_ring_size];
+ desc->next = &priv->rx_head[(i + 1) % priv->ring_size];
desc->hw_next = (u32)desc->next->mapping;
}
fail_irq:
fail_desc:
- for (i = 0; i < rx_ring_size; i++) {
+ for (i = 0; i < priv->ring_size; i++) {
if (priv->rx_head[i].skb) {
kfree_skb(priv->rx_head[i].skb);
dma_unmap_single(&dev->dev,
iounmap(priv->regs);
fail_remap:
- release_mem_region(dev->mem_start, dev->mem_end -
- dev->mem_start);
+ release_mem_region(mem->start, mem->end - mem->start);
fail_reserve:
phy_disconnect(priv->phy);
{
int i;
struct cpmac_priv *priv = netdev_priv(dev);
+ struct resource *mem;
netif_stop_queue(dev);
cpmac_write(priv->regs, CPMAC_MBP, 0);
free_irq(dev->irq, dev);
- release_mem_region(dev->mem_start, dev->mem_end -
- dev->mem_start);
+ iounmap(priv->regs);
+ mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
+ release_mem_region(mem->start, mem->end - mem->start);
priv->rx_head = &priv->desc_ring[CPMAC_TX_RING_SIZE];
- for (i = 0; i < rx_ring_size; i++) {
+ for (i = 0; i < priv->ring_size; i++) {
if (priv->rx_head[i].skb) {
kfree_skb(priv->rx_head[i].skb);
dma_unmap_single(&dev->dev,
}
dma_free_coherent(&dev->dev, sizeof(struct cpmac_desc) *
- (CPMAC_TX_RING_SIZE + rx_ring_size),
+ (CPMAC_TX_RING_SIZE + priv->ring_size),
priv->desc_ring, priv->dma_ring);
return 0;
}
static int __devinit cpmac_probe(struct platform_device *pdev)
{
- int i, rc, phy_id;
- struct resource *res;
+ int rc, phy_id;
+ struct resource *mem;
struct cpmac_priv *priv;
struct net_device *dev;
struct plat_cpmac_data *pdata;
return -ENOMEM;
}
- SET_MODULE_OWNER(dev);
platform_set_drvdata(pdev, dev);
priv = netdev_priv(dev);
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
- if (!res) {
+ priv->pdev = pdev;
+ mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
+ if (!mem) {
rc = -ENODEV;
goto fail;
}
- dev->mem_start = res->start;
- dev->mem_end = res->end;
dev->irq = platform_get_irq_byname(pdev, "irq");
dev->open = cpmac_open;
dev->set_config = cpmac_config;
dev->hard_start_xmit = cpmac_start_xmit;
dev->do_ioctl = cpmac_ioctl;
- dev->get_stats = cpmac_stats;
- dev->change_mtu = cpmac_change_mtu;
- dev->set_mac_address = cpmac_set_mac_address;
dev->set_multicast_list = cpmac_set_multicast_list;
dev->tx_timeout = cpmac_tx_timeout;
dev->ethtool_ops = &cpmac_ethtool_ops;
if (!disable_napi) {
dev->poll = cpmac_poll;
- dev->weight = min(rx_ring_size, 64);
+ dev->weight = 64;
}
spin_lock_init(&priv->lock);
priv->msg_enable = netif_msg_init(debug_level, 0xff);
- priv->config = pdata;
- priv->dev = dev;
- memcpy(dev->dev_addr, priv->config->dev_addr, sizeof(dev->dev_addr));
+ priv->ring_size = 64;
+ memcpy(dev->dev_addr, pdata->dev_addr, sizeof(dev->dev_addr));
if (phy_id == 31) {
snprintf(priv->phy_name, BUS_ID_SIZE, PHY_ID_FMT,
cpmac_mii.id, phy_id);
if (netif_msg_probe(priv)) {
printk(KERN_INFO
- "cpmac: device %s (regs: %p, irq: %d, phy: %s, mac: ",
- dev->name, (u32 *)dev->mem_start, dev->irq,
- priv->phy_name);
- for (i = 0; i < 6; i++)
- printk("%02x%s", dev->dev_addr[i], i < 5 ? ":" : ")\n");
+ "cpmac: device %s (regs: %p, irq: %d, phy: %s, mac: "
+ MAC_FMT ")\n", dev->name, (void *)mem->start, dev->irq,
+ priv->phy_name, MAC_ARG(dev->dev_addr));
}
return 0;
static struct platform_driver cpmac_driver = {
.driver.name = "cpmac",
.probe = cpmac_probe,
- .remove = cpmac_remove,
+ .remove = __devexit_p(cpmac_remove),
};
int __devinit cpmac_init(void)
projects / openwrt.git / blobdiff