static void sca_init_port(port_t *port)
{
card_t *card = port->card;
+ u16 dmac_rx = get_dmac_rx(port), dmac_tx = get_dmac_tx(port);
int transmit, i;
port->rxin = 0;
port->txlast = 0;
for (transmit = 0; transmit < 2; transmit++) {
- u16 dmac = transmit ? get_dmac_tx(port) : get_dmac_rx(port);
u16 buffs = transmit ? card->tx_ring_buffers
: card->rx_ring_buffers;
writew(0, &desc->len);
writeb(0, &desc->stat);
}
-
- /* DMA disable - to halt state */
- sca_out(0, transmit ? DSR_TX(port->chan) :
- DSR_RX(port->chan), card);
- /* software ABORT - to initial state */
- sca_out(DCR_ABORT, transmit ? DCR_TX(port->chan) :
- DCR_RX(port->chan), card);
-
- /* current desc addr */
- sca_outl(desc_offset(port, 0, transmit), dmac + CDAL, card);
- if (!transmit)
- sca_outl(desc_offset(port, buffs - 1, transmit),
- dmac + EDAL, card);
- else
- sca_outl(desc_offset(port, 0, transmit), dmac + EDAL,
- card);
-
- /* clear frame end interrupt counter */
- sca_out(DCR_CLEAR_EOF, transmit ? DCR_TX(port->chan) :
- DCR_RX(port->chan), card);
-
- if (!transmit) { /* Receive */
- /* set buffer length */
- sca_outw(HDLC_MAX_MRU, dmac + BFLL, card);
- /* Chain mode, Multi-frame */
- sca_out(0x14, DMR_RX(port->chan), card);
- sca_out(DIR_EOME, DIR_RX(port->chan), card);
- /* DMA enable */
- sca_out(DSR_DE, DSR_RX(port->chan), card);
- } else { /* Transmit */
- /* Chain mode, Multi-frame */
- sca_out(0x14, DMR_TX(port->chan), card);
- /* enable underflow interrupts */
- sca_out(DIR_EOME, DIR_TX(port->chan), card);
- }
}
+
+ /* DMA disable - to halt state */
+ sca_out(0, DSR_RX(port->chan), card);
+ sca_out(0, DSR_TX(port->chan), card);
+
+ /* software ABORT - to initial state */
+ sca_out(DCR_ABORT, DCR_RX(port->chan), card);
+ sca_out(DCR_ABORT, DCR_TX(port->chan), card);
+
+ /* current desc addr */
+ sca_outl(desc_offset(port, 0, 0), dmac_rx + CDAL, card);
+ sca_outl(desc_offset(port, card->tx_ring_buffers - 1, 0),
+ dmac_rx + EDAL, card);
+ sca_outl(desc_offset(port, 0, 1), dmac_tx + CDAL, card);
+ sca_outl(desc_offset(port, 0, 1), dmac_tx + EDAL, card);
+
+ /* clear frame end interrupt counter */
+ sca_out(DCR_CLEAR_EOF, DCR_RX(port->chan), card);
+ sca_out(DCR_CLEAR_EOF, DCR_TX(port->chan), card);
+
+ /* Receive */
+ sca_outw(HDLC_MAX_MRU, dmac_rx + BFLL, card); /* set buffer length */
+ sca_out(0x14, DMR_RX(port->chan), card); /* Chain mode, Multi-frame */
+ sca_out(DIR_EOME, DIR_RX(port->chan), card); /* enable interrupts */
+ sca_out(DSR_DE, DSR_RX(port->chan), card); /* DMA enable */
+
+ /* Transmit */
+ sca_out(0x14, DMR_TX(port->chan), card); /* Chain mode, Multi-frame */
+ sca_out(DIR_EOME, DIR_TX(port->chan), card); /* enable interrupts */
+
sca_set_carrier(port);
netif_napi_add(port->netdev, &port->napi, sca_poll, NAPI_WEIGHT);
}
received = sca_rx_done(port, budget);
if (received < budget) {
- netif_rx_complete(port->netdev, napi);
+ napi_complete(napi);
enable_intr(port);
}
if (port && (isr0 & (i ? 0x08002200 : 0x00080022))) {
handled = 1;
disable_intr(port);
- netif_rx_schedule(port->netdev, &port->napi);
+ napi_schedule(&port->napi);
}
}
sca_in(DSR_RX(port->chan), card) & DSR_DE ? "" : "in");
for (cnt = 0; cnt < port->card->rx_ring_buffers; cnt++)
printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat)));
+ printk(KERN_CONT "\n");
- printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
+ printk(KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u "
"last=%u %sactive",
sca_inl(get_dmac_tx(port) + CDAL, card),
sca_inl(get_dmac_tx(port) + EDAL, card),
#endif /* DEBUG_RINGS */
-static int sca_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t sca_xmit(struct sk_buff *skb, struct net_device *dev)
{
port_t *port = dev_to_port(dev);
card_t *card = port->card;
spin_unlock_irq(&port->lock);
dev_kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}