/* 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";
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
-#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/skbuff.h>
#include <linux/bitops.h>
+#include <asm/cacheflush.h>
#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/io.h>
/* sun3/60 addr/irq for the lance chip. If your sun is different,
change this. */
#define LANCE_OBIO 0x120000
-#define LANCE_IRQ IRQ3
+#define LANCE_IRQ IRQ_AUTO_3
/* Debug level:
* 0 = silent, print only serious errors
#else
static int lance_debug = 1;
#endif
-MODULE_PARM(lance_debug, "i");
+module_param(lance_debug, int, 0);
MODULE_PARM_DESC(lance_debug, "SUN3 Lance debug level (0-3)");
MODULE_LICENSE("GPL");
struct lance_memory *mem;
int new_rx, new_tx; /* The next free ring entry */
int old_tx, old_rx; /* ring entry to be processed */
- struct net_device_stats stats;
/* These two must be longs for set_bit() */
long tx_full;
long lock;
static int lance_open( struct net_device *dev );
static void lance_init_ring( struct net_device *dev );
static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev );
-static irqreturn_t lance_interrupt( int irq, void *dev_id, struct pt_regs *fp );
+static irqreturn_t lance_interrupt( int irq, void *dev_id);
static int lance_rx( struct net_device *dev );
static int lance_close( struct net_device *dev );
-static struct net_device_stats *lance_get_stats( struct net_device *dev );
static void set_multicast_list( struct net_device *dev );
/************************* End of Prototypes **************************/
static int found;
int err = -ENODEV;
+ if (!MACH_IS_SUN3 && !MACH_IS_SUN3X)
+ return ERR_PTR(-ENODEV);
+
/* check that this machine has an onboard lance */
switch(idprom->id_machtype) {
case SM_SUN3|SM_3_50:
sprintf(dev->name, "eth%d", unit);
netdev_boot_setup_check(dev);
}
- SET_MODULE_OWNER(dev);
if (!lance_probe(dev))
goto out;
out1:
#ifdef CONFIG_SUN3
- iounmap((void *)dev->base_addr);
+ iounmap((void __iomem *)dev->base_addr);
#endif
out:
free_netdev(dev);
return ERR_PTR(err);
}
+static const struct net_device_ops lance_netdev_ops = {
+ .ndo_open = lance_open,
+ .ndo_stop = lance_close,
+ .ndo_start_xmit = lance_start_xmit,
+ .ndo_set_multicast_list = set_multicast_list,
+ .ndo_set_mac_address = NULL,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
static int __init lance_probe( struct net_device *dev)
-{
+{
unsigned long ioaddr;
-
+
struct lance_private *lp;
int i;
static int did_version;
/* 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];
ioaddr_probe[1] = tmp2;
#ifdef CONFIG_SUN3
- iounmap((void *)ioaddr);
+ iounmap((void __iomem *)ioaddr);
#endif
return 0;
}
/* XXX - leak? */
MEM = dvma_malloc_align(sizeof(struct lance_memory), 0x10000);
+ if (MEM == NULL) {
+#ifdef CONFIG_SUN3
+ iounmap((void __iomem *)ioaddr);
+#endif
+ printk(KERN_WARNING "SUN3 Lance couldn't allocate DVMA memory\n");
+ return 0;
+ }
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, SA_INTERRUPT, "SUN3 Lance", dev);
+ if (request_irq(LANCE_IRQ, lance_interrupt, IRQF_DISABLED, "SUN3 Lance", dev) < 0) {
+#ifdef CONFIG_SUN3
+ iounmap((void __iomem *)ioaddr);
+#endif
+ dvma_free((void *)MEM);
+ printk(KERN_WARNING "SUN3 Lance unable to allocate IRQ\n");
+ return 0;
+ }
dev->irq = (unsigned short)LANCE_IRQ;
MEM->init.hwaddr[4] = dev->dev_addr[5];
MEM->init.hwaddr[5] = dev->dev_addr[4];
- for( i = 0; i < 6; ++i )
- printk( "%02x%s", dev->dev_addr[i], (i < 5) ? ":" : "\n" );
+ printk("%pM\n", dev->dev_addr);
MEM->init.mode = 0x0000;
MEM->init.filter[0] = 0x00000000;
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 );
- /* The LANCE-specific entries in the device structure. */
- dev->open = &lance_open;
- dev->hard_start_xmit = &lance_start_xmit;
- dev->stop = &lance_close;
- dev->get_stats = &lance_get_stats;
- dev->set_multicast_list = &set_multicast_list;
- dev->set_mac_address = NULL;
+ dev->netdev_ops = &lance_netdev_ops;
// KLUDGE -- REMOVE ME
set_bit(__LINK_STATE_PRESENT, &dev->state);
- memset( &lp->stats, 0, sizeof(lp->stats) );
-
return 1;
}
while (--i > 0)
if (DREG & CSR0_IDON)
break;
- if (i < 0 || (DREG & CSR0_ERR)) {
+ if (i <= 0 || (DREG & CSR0_ERR)) {
DPRINTK( 2, ( "lance_open(): opening %s failed, i=%d, csr0=%04x\n",
dev->name, i, DREG ));
DREG = CSR0_STOP;
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 );
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;
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;
/* Transmitter timeout, serious problems. */
if (netif_queue_stopped(dev)) {
- int tickssofar = jiffies - dev->trans_start;
- if (tickssofar < 20)
- return( 1 );
+ int tickssofar = jiffies - dev_trans_start(dev);
+ if (tickssofar < HZ/5)
+ return NETDEV_TX_BUSY;
DPRINTK( 1, ( "%s: transmit timed out, status %04x, resetting.\n",
dev->name, DREG ));
* little endian mode.
*/
REGA(CSR3) = CSR3_BSWP;
- lp->stats.tx_errors++;
+ dev->stats.tx_errors++;
if(lance_debug >= 2) {
int i;
lance_init_ring(dev);
REGA( CSR0 ) = CSR0_INEA | CSR0_INIT | CSR0_STRT;
-
+
netif_start_queue(dev);
- dev->trans_start = jiffies;
-
- return 0;
+
+ return NETDEV_TX_OK;
}
-
+
/* 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. */
- return 1;
+ return NETDEV_TX_BUSY;
}
AREG = CSR0;
/* Fill in a Tx ring entry */
#if 0
if (lance_debug >= 2) {
- u_char *p;
- int i;
- printk( "%s: TX pkt %d type 0x%04x from ", dev->name,
- lp->new_tx, ((u_short *)skb->data)[6]);
- for( p = &((u_char *)skb->data)[6], i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
- printk(" to ");
- for( p = (u_char *)skb->data, i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
- printk(" data at 0x%08x len %d\n", (int)skb->data,
- (int)skb->len );
+ printk( "%s: TX pkt %d type 0x%04x"
+ " from %s to %s"
+ " data at 0x%08x len %d\n",
+ dev->name, lp->new_tx, ((u_short *)skb->data)[6],
+ DEV_ADDR(&skb->data[6]), DEV_ADDR(skb->data),
+ (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);
head->length = (-len) | 0xf000;
head->misc = 0;
- memcpy( PKTBUF_ADDR(head), (void *)skb->data, skb->len );
+ skb_copy_from_linear_data(skb, PKTBUF_ADDR(head), skb->len);
if (len != skb->len)
memset(PKTBUF_ADDR(head) + skb->len, 0, len-skb->len);
head->flag = TMD1_OWN_CHIP | TMD1_ENP | TMD1_STP;
lp->new_tx = (lp->new_tx + 1) & TX_RING_MOD_MASK;
- lp->stats.tx_bytes += skb->len;
+ dev->stats.tx_bytes += skb->len;
/* Trigger an immediate send poll. */
REGA(CSR0) = CSR0_INEA | CSR0_TDMD | CSR0_STRT;
AREG = CSR0;
DPRINTK( 2, ( "%s: lance_start_xmit() exiting, csr0 %4.4x.\n",
dev->name, DREG ));
- dev->trans_start = jiffies;
- dev_kfree_skb( skb );
+ dev_kfree_skb(skb);
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);
- return 0;
+ return NETDEV_TX_OK;
}
/* The LANCE interrupt handler. */
-static irqreturn_t lance_interrupt( int irq, void *dev_id, struct pt_regs *fp)
+static irqreturn_t lance_interrupt( int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct lance_private *lp = netdev_priv(dev);
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;
// 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++;
- if (status & TMD3_RTRY) lp->stats.tx_aborted_errors++;
- if (status & TMD3_LCAR) lp->stats.tx_carrier_errors++;
- if (status & TMD3_LCOL) lp->stats.tx_window_errors++;
+ dev->stats.tx_errors++;
+ if (status & TMD3_RTRY) dev->stats.tx_aborted_errors++;
+ if (status & TMD3_LCAR) dev->stats.tx_carrier_errors++;
+ if (status & TMD3_LCOL) dev->stats.tx_window_errors++;
if (status & (TMD3_UFLO | TMD3_BUFF)) {
- lp->stats.tx_fifo_errors++;
+ dev->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);
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++;
+ dev->stats.collisions++;
+
+ dev->stats.tx_packets++;
DPRINTK(3, ("cleared tx ring %d\n", old_tx));
}
old_tx = (old_tx +1) & TX_RING_MOD_MASK;
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. */
+ if (csr0 & CSR0_BABL) dev->stats.tx_errors++; /* Tx babble. */
+ if (csr0 & CSR0_MISS) dev->stats.rx_errors++; /* Missed a Rx frame. */
if (csr0 & CSR0_MERR) {
DPRINTK( 1, ( "%s: Bus master arbitration failure (?!?), "
"status %04x.\n", dev->name, csr0 ));
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 */
- lp->stats.rx_errors++; /* end of a packet.*/
- if (status & RMD1_FRAM) lp->stats.rx_frame_errors++;
- if (status & RMD1_OFLO) lp->stats.rx_over_errors++;
- if (status & RMD1_CRC) lp->stats.rx_crc_errors++;
- if (status & RMD1_BUFF) lp->stats.rx_fifo_errors++;
+ dev->stats.rx_errors++; /* end of a packet.*/
+ if (status & RMD1_FRAM) dev->stats.rx_frame_errors++;
+ if (status & RMD1_OFLO) dev->stats.rx_over_errors++;
+ if (status & RMD1_CRC) dev->stats.rx_crc_errors++;
+ if (status & RMD1_BUFF) dev->stats.rx_fifo_errors++;
head->flag &= (RMD1_ENP|RMD1_STP);
} else {
/* Malloc up new buffer, compatible with net-3. */
if (pkt_len < 60) {
printk( "%s: Runt packet!\n", dev->name );
- lp->stats.rx_errors++;
+ dev->stats.rx_errors++;
}
else {
skb = dev_alloc_skb( pkt_len+2 );
if (skb == NULL) {
DPRINTK( 1, ( "%s: Memory squeeze, deferring packet.\n",
dev->name ));
-
- lp->stats.rx_dropped++;
+
+ dev->stats.rx_dropped++;
head->msg_length = 0;
head->flag |= RMD1_OWN_CHIP;
lp->new_rx = (lp->new_rx+1) &
#if 0
if (lance_debug >= 3) {
- u_char *data = PKTBUF_ADDR(head), *p;
- printk( "%s: RX pkt %d type 0x%04x from ", dev->name, entry, ((u_short *)data)[6]);
- for( p = &data[6], i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
- printk(" to ");
- for( p = data, i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
+ u_char *data = PKTBUF_ADDR(head);
+ printk("%s: RX pkt %d type 0x%04x"
+ " from %pM to %pM",
+ dev->name, lp->new_tx, ((u_short *)data)[6],
+ &data[6], data);
+
printk(" data %02x %02x %02x %02x %02x %02x %02x %02x "
"len %d at %08x\n",
data[15], data[16], data[17], data[18],
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;
skb_reserve( skb, 2 ); /* 16 byte align */
skb_put( skb, pkt_len ); /* Make room */
-// memcpy( skb->data, PKTBUF_ADDR(head), pkt_len );
- eth_copy_and_sum(skb,
+ skb_copy_to_linear_data(skb,
PKTBUF_ADDR(head),
- pkt_len, 0);
+ pkt_len);
skb->protocol = eth_type_trans( skb, dev );
netif_rx( skb );
- dev->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->stats.rx_bytes += pkt_len;
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += pkt_len;
}
}
}
-static struct net_device_stats *lance_get_stats( struct net_device *dev )
-{
- struct lance_private *lp = netdev_priv(dev);
-
- return &lp->stats;
-}
-
-
/* Set or clear the multicast filter for this adaptor.
num_addrs == -1 Promiscuous mode, receive all packets
num_addrs == 0 Normal mode, clear multicast list
if (dev->flags & IFF_PROMISC) {
/* Log any net taps. */
- DPRINTK( 1, ( "%s: Promiscuous mode enabled.\n", dev->name ));
+ DPRINTK( 3, ( "%s: Promiscuous mode enabled.\n", dev->name ));
REGA( CSR15 ) = 0x8000; /* Set promiscuous mode */
} else {
short multicast_table[4];
- int num_addrs = dev->mc_count;
+ int num_addrs = netdev_mc_count(dev);
int i;
/* We don't use the multicast table, but rely on upper-layer
* filtering. */
static struct net_device *sun3lance_dev;
-int init_module(void)
+int __init init_module(void)
{
sun3lance_dev = sun3lance_probe(-1);
if (IS_ERR(sun3lance_dev))
return 0;
}
-void cleanup_module(void)
+void __exit cleanup_module(void)
{
unregister_netdev(sun3lance_dev);
#ifdef CONFIG_SUN3
- iounmap((void *)sun3lance_dev->base_addr);
+ iounmap((void __iomem *)sun3lance_dev->base_addr);
#endif
free_netdev(sun3lance_dev);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff