summaryrefslogtreecommitdiffstats
path: root/drivers/net/sun3lance.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/sun3lance.c')
-rw-r--r--drivers/net/sun3lance.c72
1 files changed, 36 insertions, 36 deletions
diff --git a/drivers/net/sun3lance.c b/drivers/net/sun3lance.c
index 0d76e221476..61a832ce7cc 100644
--- a/drivers/net/sun3lance.c
+++ b/drivers/net/sun3lance.c
@@ -1,24 +1,24 @@
/* sun3lance.c: Ethernet driver for SUN3 Lance chip */
/*
- Sun3 Lance ethernet driver, by Sam Creasey (sammy@users.qual.net).
+ Sun3 Lance ethernet driver, by Sam Creasey (sammy@users.qual.net).
This driver is a part of the linux kernel, and is thus distributed
under the GNU General Public License.
-
+
The values used in LANCE_OBIO and LANCE_IRQ seem to be empirically
true for the correct IRQ and address of the lance registers. They
have not been widely tested, however. What we probably need is a
"proper" way to search for a device in the sun3's prom, but, alas,
- linux has no such thing.
+ linux has no such thing.
This driver is largely based on atarilance.c, by Roman Hodek. Other
sources of inspiration were the NetBSD sun3 am7990 driver, and the
- linux sparc lance driver (sunlance.c).
+ linux sparc lance driver (sunlance.c).
There are more assumptions made throughout this driver, it almost
certainly still needs work, but it does work at least for RARP/BOOTP and
mounting the root NFS filesystem.
-
+
*/
static char *version = "sun3lance.c: v1.2 1/12/2001 Sam Creasey (sammy@sammy.net)\n";
@@ -294,9 +294,9 @@ out:
}
static int __init lance_probe( struct net_device *dev)
-{
+{
unsigned long ioaddr;
-
+
struct lance_private *lp;
int i;
static int did_version;
@@ -313,7 +313,7 @@ static int __init lance_probe( struct net_device *dev)
/* test to see if there's really a lance here */
/* (CSRO_INIT shouldn't be readable) */
-
+
ioaddr_probe = (volatile unsigned short *)ioaddr;
tmp1 = ioaddr_probe[0];
tmp2 = ioaddr_probe[1];
@@ -339,7 +339,7 @@ static int __init lance_probe( struct net_device *dev)
lp->iobase = (volatile unsigned short *)ioaddr;
dev->base_addr = (unsigned long)ioaddr; /* informational only */
- REGA(CSR0) = CSR0_STOP;
+ REGA(CSR0) = CSR0_STOP;
request_irq(LANCE_IRQ, lance_interrupt, IRQF_DISABLED, "SUN3 Lance", dev);
dev->irq = (unsigned short)LANCE_IRQ;
@@ -378,7 +378,7 @@ static int __init lance_probe( struct net_device *dev)
DPRINTK(2, ("initaddr: %08lx rx_ring: %08lx tx_ring: %08lx\n",
dvma_vtob(&(MEM->init)), dvma_vtob(MEM->rx_head),
- (dvma_vtob(MEM->tx_head))));
+ (dvma_vtob(MEM->tx_head))));
if (did_version++ == 0)
printk( version );
@@ -427,7 +427,7 @@ static int lance_open( struct net_device *dev )
DREG = CSR0_IDON | CSR0_STRT | CSR0_INEA;
netif_start_queue(dev);
-
+
DPRINTK( 2, ( "%s: LANCE is open, csr0 %04x\n", dev->name, DREG ));
return( 0 );
@@ -449,7 +449,7 @@ static void lance_init_ring( struct net_device *dev )
for( i = 0; i < TX_RING_SIZE; i++ ) {
MEM->tx_head[i].base = dvma_vtob(MEM->tx_data[i]);
MEM->tx_head[i].flag = 0;
- MEM->tx_head[i].base_hi =
+ MEM->tx_head[i].base_hi =
(dvma_vtob(MEM->tx_data[i])) >>16;
MEM->tx_head[i].length = 0;
MEM->tx_head[i].misc = 0;
@@ -458,7 +458,7 @@ static void lance_init_ring( struct net_device *dev )
for( i = 0; i < RX_RING_SIZE; i++ ) {
MEM->rx_head[i].base = dvma_vtob(MEM->rx_data[i]);
MEM->rx_head[i].flag = RMD1_OWN_CHIP;
- MEM->rx_head[i].base_hi =
+ MEM->rx_head[i].base_hi =
(dvma_vtob(MEM->rx_data[i])) >> 16;
MEM->rx_head[i].buf_length = -PKT_BUF_SZ | 0xf000;
MEM->rx_head[i].msg_length = 0;
@@ -542,22 +542,22 @@ static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
lance_init_ring(dev);
REGA( CSR0 ) = CSR0_INEA | CSR0_INIT | CSR0_STRT;
-
+
netif_start_queue(dev);
dev->trans_start = jiffies;
-
+
return 0;
}
-
+
/* Block a timer-based transmit from overlapping. This could better be
done with atomic_swap(1, dev->tbusy), but set_bit() works as well. */
/* Block a timer-based transmit from overlapping with us by
stopping the queue for a bit... */
-
+
netif_stop_queue(dev);
-
+
if (test_and_set_bit( 0, (void*)&lp->lock ) != 0) {
printk( "%s: tx queue lock!.\n", dev->name);
/* don't clear dev->tbusy flag. */
@@ -593,7 +593,7 @@ static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
printk(" data at 0x%08x len %d\n", (int)skb->data,
(int)skb->len );
}
-#endif
+#endif
/* We're not prepared for the int until the last flags are set/reset.
* And the int may happen already after setting the OWN_CHIP... */
local_irq_save(flags);
@@ -632,7 +632,7 @@ static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
lp->lock = 0;
if ((MEM->tx_head[(entry+1) & TX_RING_MOD_MASK].flag & TMD1_OWN) ==
- TMD1_OWN_HOST)
+ TMD1_OWN_HOST)
netif_start_queue(dev);
local_irq_restore(flags);
@@ -657,10 +657,10 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id, struct pt_regs *fp)
if (in_interrupt)
DPRINTK( 2, ( "%s: Re-entering the interrupt handler.\n", dev->name ));
in_interrupt = 1;
-
+
still_more:
flush_cache_all();
-
+
AREG = CSR0;
csr0 = DREG;
@@ -680,22 +680,22 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id, struct pt_regs *fp)
// if(lance_debug >= 3) {
// int i;
-//
+//
// printk("%s: tx int\n", dev->name);
-//
+//
// for(i = 0; i < TX_RING_SIZE; i++)
// printk("ring %d flag=%04x\n", i,
// MEM->tx_head[i].flag);
// }
-
+
while( old_tx != lp->new_tx) {
- struct lance_tx_head *head = &(MEM->tx_head[old_tx]);
-
+ struct lance_tx_head *head = &(MEM->tx_head[old_tx]);
+
DPRINTK(3, ("on tx_ring %d\n", old_tx));
if (head->flag & TMD1_OWN_CHIP)
break; /* It still hasn't been Txed */
-
+
if (head->flag & TMD1_ERR) {
int status = head->misc;
lp->stats.tx_errors++;
@@ -705,7 +705,7 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id, struct pt_regs *fp)
if (status & (TMD3_UFLO | TMD3_BUFF)) {
lp->stats.tx_fifo_errors++;
printk("%s: Tx FIFO error\n",
- dev->name);
+ dev->name);
REGA(CSR0) = CSR0_STOP;
REGA(CSR3) = CSR3_BSWP;
lance_init_ring(dev);
@@ -713,11 +713,11 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id, struct pt_regs *fp)
return IRQ_HANDLED;
}
} else if(head->flag & (TMD1_ENP | TMD1_STP)) {
-
+
head->flag &= ~(TMD1_ENP | TMD1_STP);
if(head->flag & (TMD1_ONE | TMD1_MORE))
lp->stats.collisions++;
-
+
lp->stats.tx_packets++;
DPRINTK(3, ("cleared tx ring %d\n", old_tx));
}
@@ -736,7 +736,7 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id, struct pt_regs *fp)
if (csr0 & CSR0_RINT) /* Rx interrupt */
lance_rx( dev );
-
+
/* Log misc errors. */
if (csr0 & CSR0_BABL) lp->stats.tx_errors++; /* Tx babble. */
if (csr0 & CSR0_MISS) lp->stats.rx_errors++; /* Missed a Rx frame. */
@@ -778,10 +778,10 @@ static int lance_rx( struct net_device *dev )
while( (MEM->rx_head[entry].flag & RMD1_OWN) == RMD1_OWN_HOST ) {
struct lance_rx_head *head = &(MEM->rx_head[entry]);
int status = head->flag;
-
+
if (status != (RMD1_ENP|RMD1_STP)) { /* There was an error. */
/* There is a tricky error noted by John Murphy,
- <murf@perftech.com> to Russ Nelson: Even with
+ <murf@perftech.com> to Russ Nelson: Even with
full-sized buffers it's possible for a jabber packet to use two
buffers, with only the last correctly noting the error. */
if (status & RMD1_ENP) /* Only count a general error at the */
@@ -806,7 +806,7 @@ static int lance_rx( struct net_device *dev )
if (skb == NULL) {
DPRINTK( 1, ( "%s: Memory squeeze, deferring packet.\n",
dev->name ));
-
+
lp->stats.rx_dropped++;
head->msg_length = 0;
head->flag |= RMD1_OWN_CHIP;
@@ -833,7 +833,7 @@ static int lance_rx( struct net_device *dev )
if (lance_debug >= 3) {
u_char *data = PKTBUF_ADDR(head);
printk( "%s: RX pkt %d type 0x%04x len %d\n ", dev->name, entry, ((u_short *)data)[6], pkt_len);
- }
+ }
skb->dev = dev;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-11 21:22:32 +0000