-/*
- * 7990.c -- LANCE ethernet IC generic routines.
+/*
+ * 7990.c -- LANCE ethernet IC generic routines.
* This is an attempt to separate out the bits of various ethernet
- * drivers that are common because they all use the AMD 7990 LANCE
+ * drivers that are common because they all use the AMD 7990 LANCE
* (Local Area Network Controller for Ethernet) chip.
*
* Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
* Most of this stuff was obtained by looking at other LANCE drivers,
* in particular a2065.[ch]. The AMD C-LANCE datasheet was also helpful.
* NB: this was made easy by the fact that Jes Sorensen had cleaned up
- * most of a2025 and sunlance with the aim of merging them, so the
+ * most of a2025 and sunlance with the aim of merging them, so the
* common code was pretty obvious.
*/
#include <linux/crc32.h>
ib->btx_ring[t].length,\
ib->btx_ring[t].misc, ib->btx_ring[t].tmd1_bits);\
}\
-} while (0)
+} while (0)
#else
#define PRINT_RINGS()
-#endif
+#endif
/* Load the CSR registers. The LANCE has to be STOPped when we do this! */
static void load_csrs (struct lance_private *lp)
* a2065 and atarilance do the byteswap and lance.c (PC) doesn't.
* However, the datasheet says that the BSWAP bit doesn't affect
* the init block, so surely it should be low byte first for
- * everybody? Um.]
+ * everybody? Um.]
* We could define the ib->physaddr as three 16bit values and
* use (addr[1] << 8) | addr[0] & co, but this is more efficient.
*/
#else
for (i=0; i<6; i++)
ib->phys_addr[i] = dev->dev_addr[i];
-#endif
+#endif
if (DEBUG_IRING)
printk ("TX rings:\n");
-
+
lp->tx_full = 0;
/* Setup the Tx ring entries */
for (i = 0; i < (1<<lp->lance_log_tx_bufs); i++) {
ib->btx_ring [i].tmd1_bits = 0;
ib->btx_ring [i].length = 0xf000; /* The ones required by tmd2 */
ib->btx_ring [i].misc = 0;
- if (DEBUG_IRING)
+ if (DEBUG_IRING)
printk ("%d: 0x%8.8x\n", i, leptr);
}
}
/* Setup the initialization block */
-
+
/* Setup rx descriptor pointer */
leptr = LANCE_ADDR(&aib->brx_ring);
ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16);
ib->rx_ptr = leptr;
if (DEBUG_IRING)
printk ("RX ptr: %8.8x\n", leptr);
-
+
/* Setup tx descriptor pointer */
leptr = LANCE_ADDR(&aib->btx_ring);
ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16);
{
struct lance_private *lp = netdev_priv(dev);
int status;
-
+
/* Stop the lance */
WRITERAP(lp, LE_CSR0);
WRITERDP(lp, LE_C0_STOP);
#endif
#ifdef CONFIG_HP300
blinken_leds(0x40, 0);
-#endif
+#endif
WRITERDP(lp, LE_C0_RINT | LE_C0_INEA); /* ack Rx int, reenable ints */
for (rd = &ib->brx_ring [lp->rx_new]; /* For each Rx ring we own... */
!((bits = rd->rmd1_bits) & LE_R1_OWN);
lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
return 0;
}
-
+
skb->dev = dev;
skb_reserve (skb, 2); /* 16 byte align */
skb_put (skb, len); /* make room */
/* If we hit a packet not owned by us, stop */
if (td->tmd1_bits & LE_T1_OWN)
break;
-
+
if (td->tmd1_bits & LE_T1_ERR) {
status = td->misc;
-
+
lp->stats.tx_errors++;
if (status & LE_T3_RTY) lp->stats.tx_aborted_errors++;
if (status & LE_T3_LCOL) lp->stats.tx_window_errors++;
lp->stats.tx_packets++;
}
-
+
j = (j + 1) & lp->tx_ring_mod_mask;
}
lp->tx_old = j;
csr0 = READRDP(lp);
PRINT_RINGS();
-
+
if (!(csr0 & LE_C0_INTR)) { /* Check if any interrupt has */
spin_unlock (&lp->devlock);
return IRQ_NONE; /* been generated by the Lance. */
if (csr0 & LE_C0_MISS)
lp->stats.rx_errors++; /* Missed a Rx frame. */
if (csr0 & LE_C0_MERR) {
- printk("%s: Bus master arbitration failure, status %4.4x.\n",
+ printk("%s: Bus master arbitration failure, status %4.4x.\n",
dev->name, csr0);
/* Restart the chip. */
WRITERDP(lp, LE_C0_STRT);
lp->tx_full = 0;
netif_wake_queue (dev);
}
-
+
WRITERAP(lp, LE_CSR0);
WRITERDP(lp, LE_C0_BABL|LE_C0_CERR|LE_C0_MISS|LE_C0_MERR|LE_C0_IDON|LE_C0_INEA);
{
struct lance_private *lp = netdev_priv(dev);
int res;
-
+
/* Install the Interrupt handler. Or we could shunt this out to specific drivers? */
if (request_irq(lp->irq, lance_interrupt, 0, lp->name, dev))
return -EAGAIN;
int lance_close (struct net_device *dev)
{
struct lance_private *lp = netdev_priv(dev);
-
+
netif_stop_queue (dev);
/* Stop the LANCE */
/* dump the packet */
{
int i;
-
+
for (i = 0; i < 64; i++) {
if ((i % 16) == 0)
printk ("\n");
entry = lp->tx_new & lp->tx_ring_mod_mask;
ib->btx_ring [entry].length = (-len) | 0xf000;
ib->btx_ring [entry].misc = 0;
-
+
if (skb->len < ETH_ZLEN)
memset((char *)&ib->tx_buf[entry][0], 0, ETH_ZLEN);
memcpy ((char *)&ib->tx_buf [entry][0], skb->data, skblen);
-
+
/* Now, give the packet to the lance */
ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask;
WRITERDP(lp, LE_C0_INEA | LE_C0_TDMD);
dev->trans_start = jiffies;
dev_kfree_skb (skb);
-
+
spin_lock_irqsave (&lp->devlock, flags);
if (TX_BUFFS_AVAIL)
netif_start_queue (dev);
char *addrs;
int i;
u32 crc;
-
+
/* set all multicast bits */
- if (dev->flags & IFF_ALLMULTI){
+ if (dev->flags & IFF_ALLMULTI){
ib->filter [0] = 0xffffffff;
ib->filter [1] = 0xffffffff;
return;
/* multicast address? */
if (!(*addrs & 1))
continue;
-
+
crc = ether_crc_le(6, addrs);
crc = crc >> 26;
mcast_table [crc >> 4] |= 1 << (crc & 0xf);
git.openpandora.org / pandora-kernel.git / blobdiff