static inline void sca_rx(card_t *card, port_t *port, pkt_desc *desc, u16 rxin)
{
struct net_device *dev = port_to_dev(port);
struct net_device_stats *stats = hdlc_stats(dev);
struct sk_buff *skb;
u16 len;
u32 buff;
#ifndef ALL_PAGES_ALWAYS_MAPPED
u32 maxlen;
u8 page;
#endif
len = readw(&desc->len);
skb = dev_alloc_skb(len);
if (!skb) {
stats->rx_dropped++;
return;
}
buff = buffer_offset(port, rxin, 0);
#ifndef ALL_PAGES_ALWAYS_MAPPED
page = buff / winsize(card);
buff = buff % winsize(card);
maxlen = winsize(card) - buff;
openwin(card, page);
if (len > maxlen) {
memcpy_fromio(skb->data, winbase(card) + buff, maxlen);
openwin(card, page + 1);
memcpy_fromio(skb->data + maxlen, winbase(card), len - maxlen);
} else
#endif
memcpy_fromio(skb->data, winbase(card) + buff, len);
#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED)
/* select pkt_desc table page back */
openwin(card, 0);
#endif
skb_put(skb, len);
#ifdef DEBUG_PKT
printk(KERN_DEBUG "%s RX(%i):", dev->name, skb->len);
debug_frame(skb);
#endif
stats->rx_packets++;
stats->rx_bytes += skb->len;
skb->mac.raw = skb->data;
skb->dev = dev;
skb->dev->last_rx = jiffies;
skb->protocol = hdlc_type_trans(skb, dev);
netif_rx(skb);
}
static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc,
u16 rxin)
{
struct net_device *dev = port_to_dev(port);
struct sk_buff *skb;
u16 len;
u32 buff;
u32 maxlen;
u8 page;
len = readw(&desc->len);
skb = dev_alloc_skb(len);
if (!skb) {
dev->stats.rx_dropped++;
return;
}
buff = buffer_offset(port, rxin, 0);
page = buff / winsize(card);
buff = buff % winsize(card);
maxlen = winsize(card) - buff;
openwin(card, page);
if (len > maxlen) {
memcpy_fromio(skb->data, winbase(card) + buff, maxlen);
openwin(card, page + 1);
memcpy_fromio(skb->data + maxlen, winbase(card), len - maxlen);
} else
memcpy_fromio(skb->data, winbase(card) + buff, len);
#ifndef PAGE0_ALWAYS_MAPPED
openwin(card, 0);
#endif
skb_put(skb, len);
#ifdef DEBUG_PKT
printk(KERN_DEBUG "%s RX(%i):", dev->name, skb->len);
debug_frame(skb);
#endif
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
skb->protocol = hdlc_type_trans(skb, dev);
netif_rx(skb);
}
static inline pkt_desc __iomem *desc_address(port_t *port, u16 desc, int transmit)
{
#ifdef PAGE0_ALWAYS_MAPPED
return (pkt_desc __iomem *)(win0base(port_to_card(port))
+ desc_offset(port, desc, transmit));
#else
return (pkt_desc __iomem *)(winbase(port_to_card(port))
+ desc_offset(port, desc, transmit));
#endif
}
