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3c501: Bring into compliance with the coding style 

3c501 leads the way... 8)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2007-11-19 15:02:32 +00:00 committed by David S. Miller
parent 68d579fb93
commit a35f5de776
1 changed files with 107 additions and 125 deletions
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232
drivers/net/3c501.c
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@ -17,7 +17,7 @@
Annapolis MD 21403 Annapolis MD 21403
Fixed (again!) the missing interrupt locking on TX/RX shifting. Fixed (again!) the missing interrupt locking on TX/RX shifting.
Alan Cox <Alan.Cox@linux.org> Alan Cox <Alan.Cox@linux.org>
Removed calls to init_etherdev since they are no longer needed, and Removed calls to init_etherdev since they are no longer needed, and
cleaned up modularization just a bit. The driver still allows only cleaned up modularization just a bit. The driver still allows only
@ -29,16 +29,16 @@
the board. Now getting 150K/second FTP with a 3c501 card. Still playing the board. Now getting 150K/second FTP with a 3c501 card. Still playing
with a TX-TX optimisation to see if we can touch 180-200K/second as seems with a TX-TX optimisation to see if we can touch 180-200K/second as seems
theoretically maximum. theoretically maximum.
19950402 Alan Cox <Alan.Cox@linux.org> 19950402 Alan Cox <Alan.Cox@linux.org>
Cleaned up for 2.3.x because we broke SMP now. Cleaned up for 2.3.x because we broke SMP now.
20000208 Alan Cox <alan@redhat.com> 20000208 Alan Cox <alan@redhat.com>
Check up pass for 2.5. Nothing significant changed Check up pass for 2.5. Nothing significant changed
20021009 Alan Cox <alan@redhat.com> 20021009 Alan Cox <alan@redhat.com>
Fixed zero fill corner case Fixed zero fill corner case
20030104 Alan Cox <alan@redhat.com> 20030104 Alan Cox <alan@redhat.com>
For the avoidance of doubt the "preferred form" of this code is one which For the avoidance of doubt the "preferred form" of this code is one which
@ -139,8 +139,8 @@ static const char version[] =
* The boilerplate probe code. * The boilerplate probe code.
*/ */
static int io=0x280; static int io = 0x280;
static int irq=5; static int irq = 5;
static int mem_start; static int mem_start;
/** /**
@ -229,8 +229,7 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
* Read the station address PROM data from the special port. * Read the station address PROM data from the special port.
*/ */
for (i = 0; i < 6; i++) for (i = 0; i < 6; i++) {
{
outw(i, ioaddr + EL1_DATAPTR); outw(i, ioaddr + EL1_DATAPTR);
station_addr[i] = inb(ioaddr + EL1_SAPROM); station_addr[i] = inb(ioaddr + EL1_SAPROM);
} }
@ -240,28 +239,24 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
*/ */
if (station_addr[0] == 0x02 && station_addr[1] == 0x60 if (station_addr[0] == 0x02 && station_addr[1] == 0x60
&& station_addr[2] == 0x8c) && station_addr[2] == 0x8c)
{
mname = "3c501"; mname = "3c501";
} else if (station_addr[0] == 0x00 && station_addr[1] == 0x80 else if (station_addr[0] == 0x00 && station_addr[1] == 0x80
&& station_addr[2] == 0xC8) && station_addr[2] == 0xC8)
{
mname = "NP943"; mname = "NP943";
} else {
else {
release_region(ioaddr, EL1_IO_EXTENT); release_region(ioaddr, EL1_IO_EXTENT);
return -ENODEV; return -ENODEV;
} }
/* /*
* We auto-IRQ by shutting off the interrupt line and letting it float * We auto-IRQ by shutting off the interrupt line and letting it
* high. * float high.
*/ */
dev->irq = irq; dev->irq = irq;
if (dev->irq < 2) if (dev->irq < 2) {
{
unsigned long irq_mask; unsigned long irq_mask;
irq_mask = probe_irq_on(); irq_mask = probe_irq_on();
@ -274,8 +269,7 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
mdelay(20); mdelay(20);
autoirq = probe_irq_off(irq_mask); autoirq = probe_irq_off(irq_mask);
if (autoirq == 0) if (autoirq == 0) {
{
printk(KERN_WARNING "%s probe at %#x failed to detect IRQ line.\n", printk(KERN_WARNING "%s probe at %#x failed to detect IRQ line.\n",
mname, ioaddr); mname, ioaddr);
release_region(ioaddr, EL1_IO_EXTENT); release_region(ioaddr, EL1_IO_EXTENT);
@ -292,7 +286,8 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
if (autoirq) if (autoirq)
dev->irq = autoirq; dev->irq = autoirq;
printk(KERN_INFO "%s: %s EtherLink at %#lx, using %sIRQ %d.\n", dev->name, mname, dev->base_addr, printk(KERN_INFO "%s: %s EtherLink at %#lx, using %sIRQ %d.\n",
dev->name, mname, dev->base_addr,
autoirq ? "auto":"assigned ", dev->irq); autoirq ? "auto":"assigned ", dev->irq);
#ifdef CONFIG_IP_MULTICAST #ifdef CONFIG_IP_MULTICAST
@ -343,7 +338,8 @@ static int el_open(struct net_device *dev)
if (el_debug > 2) if (el_debug > 2)
printk(KERN_DEBUG "%s: Doing el_open()...", dev->name); printk(KERN_DEBUG "%s: Doing el_open()...", dev->name);
if ((retval = request_irq(dev->irq, &el_interrupt, 0, dev->name, dev))) retval = request_irq(dev->irq, &el_interrupt, 0, dev->name, dev);
if (retval)
return retval; return retval;
spin_lock_irqsave(&lp->lock, flags); spin_lock_irqsave(&lp->lock, flags);
@ -371,8 +367,9 @@ static void el_timeout(struct net_device *dev)
int ioaddr = dev->base_addr; int ioaddr = dev->base_addr;
if (el_debug) if (el_debug)
printk (KERN_DEBUG "%s: transmit timed out, txsr %#2x axsr=%02x rxsr=%02x.\n", printk(KERN_DEBUG "%s: transmit timed out, txsr %#2x axsr=%02x rxsr=%02x.\n",
dev->name, inb(TX_STATUS), inb(AX_STATUS), inb(RX_STATUS)); dev->name, inb(TX_STATUS),
inb(AX_STATUS), inb(RX_STATUS));
dev->stats.tx_errors++; dev->stats.tx_errors++;
outb(TX_NORM, TX_CMD); outb(TX_NORM, TX_CMD);
outb(RX_NORM, RX_CMD); outb(RX_NORM, RX_CMD);
@ -425,8 +422,7 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev)
netif_stop_queue(dev); netif_stop_queue(dev);
do do {
{
int len = skb->len; int len = skb->len;
int pad = 0; int pad = 0;
int gp_start; int gp_start;
@ -435,10 +431,10 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (len < ETH_ZLEN) if (len < ETH_ZLEN)
pad = ETH_ZLEN - len; pad = ETH_ZLEN - len;
gp_start = 0x800 - ( len + pad ); gp_start = 0x800 - (len + pad);
lp->tx_pkt_start = gp_start; lp->tx_pkt_start = gp_start;
lp->collisions = 0; lp->collisions = 0;
dev->stats.tx_bytes += skb->len; dev->stats.tx_bytes += skb->len;
@ -455,37 +451,42 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev)
lp->txing = 1; lp->txing = 1;
/* /*
* Turn interrupts back on while we spend a pleasant afternoon * Turn interrupts back on while we spend a pleasant
* loading bytes into the board * afternoon loading bytes into the board
*/ */
spin_unlock_irqrestore(&lp->lock, flags); spin_unlock_irqrestore(&lp->lock, flags);
outw(0x00, RX_BUF_CLR); /* Set rx packet area to 0. */ /* Set rx packet area to 0. */
outw(gp_start, GP_LOW); /* aim - packet will be loaded into buffer start */ outw(0x00, RX_BUF_CLR);
outsb(DATAPORT,buf,len); /* load buffer (usual thing each byte increments the pointer) */ /* aim - packet will be loaded into buffer start */
outw(gp_start, GP_LOW);
/* load buffer (usual thing each byte increments the pointer) */
outsb(DATAPORT, buf, len);
if (pad) { if (pad) {
while(pad--) /* Zero fill buffer tail */ while (pad--) /* Zero fill buffer tail */
outb(0, DATAPORT); outb(0, DATAPORT);
} }
outw(gp_start, GP_LOW); /* the board reuses the same register */ /* the board reuses the same register */
outw(gp_start, GP_LOW);
if(lp->loading != 2) if (lp->loading != 2) {
{ /* fire ... Trigger xmit. */
outb(AX_XMIT, AX_CMD); /* fire ... Trigger xmit. */ outb(AX_XMIT, AX_CMD);
lp->loading=0; lp->loading = 0;
dev->trans_start = jiffies; dev->trans_start = jiffies;
if (el_debug > 2) if (el_debug > 2)
printk(KERN_DEBUG " queued xmit.\n"); printk(KERN_DEBUG " queued xmit.\n");
dev_kfree_skb (skb); dev_kfree_skb(skb);
return 0; return 0;
} }
/* A receive upset our load, despite our best efforts */ /* A receive upset our load, despite our best efforts */
if(el_debug>2) if (el_debug > 2)
printk(KERN_DEBUG "%s: burped during tx load.\n", dev->name); printk(KERN_DEBUG "%s: burped during tx load.\n",
dev->name);
spin_lock_irqsave(&lp->lock, flags); spin_lock_irqsave(&lp->lock, flags);
} }
while(1); while (1);
} }
@ -534,64 +535,59 @@ static irqreturn_t el_interrupt(int irq, void *dev_id)
*/ */
if (el_debug > 3) if (el_debug > 3)
printk(KERN_DEBUG "%s: el_interrupt() aux=%#02x", dev->name, axsr); printk(KERN_DEBUG "%s: el_interrupt() aux=%#02x",
dev->name, axsr);
if(lp->loading==1 && !lp->txing) if (lp->loading == 1 && !lp->txing)
printk(KERN_WARNING "%s: Inconsistent state loading while not in tx\n", printk(KERN_WARNING "%s: Inconsistent state loading while not in tx\n",
dev->name); dev->name);
if (lp->txing)
{
/*
* Board in transmit mode. May be loading. If we are
* loading we shouldn't have got this.
*/
if (lp->txing) {
/*
* Board in transmit mode. May be loading. If we are
* loading we shouldn't have got this.
*/
int txsr = inb(TX_STATUS); int txsr = inb(TX_STATUS);
if(lp->loading==1) if (lp->loading == 1) {
{ if (el_debug > 2) {
if(el_debug > 2) printk(KERN_DEBUG "%s: Interrupt while loading [",
{ dev->name);
printk(KERN_DEBUG "%s: Interrupt while loading [", dev->name); printk(" txsr=%02x gp=%04x rp=%04x]\n",
printk(KERN_DEBUG " txsr=%02x gp=%04x rp=%04x]\n", txsr, inw(GP_LOW),inw(RX_LOW)); txsr, inw(GP_LOW), inw(RX_LOW));
} }
lp->loading=2; /* Force a reload */ /* Force a reload */
lp->loading = 2;
spin_unlock(&lp->lock); spin_unlock(&lp->lock);
goto out; goto out;
} }
if (el_debug > 6) if (el_debug > 6)
printk(KERN_DEBUG " txsr=%02x gp=%04x rp=%04x", txsr, inw(GP_LOW),inw(RX_LOW)); printk(KERN_DEBUG " txsr=%02x gp=%04x rp=%04x",
txsr, inw(GP_LOW), inw(RX_LOW));
if ((axsr & 0x80) && (txsr & TX_READY) == 0) if ((axsr & 0x80) && (txsr & TX_READY) == 0) {
{
/* /*
* FIXME: is there a logic to whether to keep on trying or * FIXME: is there a logic to whether to keep
* reset immediately ? * on trying or reset immediately ?
*/ */
if(el_debug>1) if (el_debug > 1)
printk(KERN_DEBUG "%s: Unusual interrupt during Tx, txsr=%02x axsr=%02x" printk(KERN_DEBUG "%s: Unusual interrupt during Tx, txsr=%02x axsr=%02x gp=%03x rp=%03x.\n",
" gp=%03x rp=%03x.\n", dev->name, txsr, axsr, dev->name, txsr, axsr,
inw(ioaddr + EL1_DATAPTR), inw(ioaddr + EL1_RXPTR)); inw(ioaddr + EL1_DATAPTR),
inw(ioaddr + EL1_RXPTR));
lp->txing = 0; lp->txing = 0;
netif_wake_queue(dev); netif_wake_queue(dev);
} } else if (txsr & TX_16COLLISIONS) {
else if (txsr & TX_16COLLISIONS)
{
/* /*
* Timed out * Timed out
*/ */
if (el_debug) if (el_debug)
printk (KERN_DEBUG "%s: Transmit failed 16 times, Ethernet jammed?\n",dev->name); printk(KERN_DEBUG "%s: Transmit failed 16 times, Ethernet jammed?\n", dev->name);
outb(AX_SYS, AX_CMD); outb(AX_SYS, AX_CMD);
lp->txing = 0; lp->txing = 0;
dev->stats.tx_aborted_errors++; dev->stats.tx_aborted_errors++;
netif_wake_queue(dev); netif_wake_queue(dev);
} } else if (txsr & TX_COLLISION) {
else if (txsr & TX_COLLISION)
{
/* /*
* Retrigger xmit. * Retrigger xmit.
*/ */
@ -599,7 +595,8 @@ static irqreturn_t el_interrupt(int irq, void *dev_id)
if (el_debug > 6) if (el_debug > 6)
printk(KERN_DEBUG " retransmitting after a collision.\n"); printk(KERN_DEBUG " retransmitting after a collision.\n");
/* /*
* Poor little chip can't reset its own start pointer * Poor little chip can't reset its own start
* pointer
*/ */
outb(AX_SYS, AX_CMD); outb(AX_SYS, AX_CMD);
@ -608,53 +605,45 @@ static irqreturn_t el_interrupt(int irq, void *dev_id)
dev->stats.collisions++; dev->stats.collisions++;
spin_unlock(&lp->lock); spin_unlock(&lp->lock);
goto out; goto out;
} } else {
else
{
/* /*
* It worked.. we will now fall through and receive * It worked.. we will now fall through and receive
*/ */
dev->stats.tx_packets++; dev->stats.tx_packets++;
if (el_debug > 6) if (el_debug > 6)
printk(KERN_DEBUG " Tx succeeded %s\n", printk(KERN_DEBUG " Tx succeeded %s\n",
(txsr & TX_RDY) ? "." : "but tx is busy!"); (txsr & TX_RDY) ? "." : "but tx is busy!");
/* /*
* This is safe the interrupt is atomic WRT itself. * This is safe the interrupt is atomic WRT itself.
*/ */
lp->txing = 0; lp->txing = 0;
netif_wake_queue(dev); /* In case more to transmit */ /* In case more to transmit */
netif_wake_queue(dev);
} }
} } else {
else /*
{ * In receive mode.
/* */
* In receive mode.
*/
int rxsr = inb(RX_STATUS); int rxsr = inb(RX_STATUS);
if (el_debug > 5) if (el_debug > 5)
printk(KERN_DEBUG " rxsr=%02x txsr=%02x rp=%04x", rxsr, inb(TX_STATUS),inw(RX_LOW)); printk(KERN_DEBUG " rxsr=%02x txsr=%02x rp=%04x", rxsr, inb(TX_STATUS), inw(RX_LOW));
/* /*
* Just reading rx_status fixes most errors. * Just reading rx_status fixes most errors.
*/ */
if (rxsr & RX_MISSED) if (rxsr & RX_MISSED)
dev->stats.rx_missed_errors++; dev->stats.rx_missed_errors++;
else if (rxsr & RX_RUNT) else if (rxsr & RX_RUNT) {
{ /* Handled to avoid board lock-up. */ /* Handled to avoid board lock-up. */
dev->stats.rx_length_errors++; dev->stats.rx_length_errors++;
if (el_debug > 5) if (el_debug > 5)
printk(KERN_DEBUG " runt.\n"); printk(KERN_DEBUG " runt.\n");
} } else if (rxsr & RX_GOOD) {
else if (rxsr & RX_GOOD)
{
/* /*
* Receive worked. * Receive worked.
*/ */
el_receive(dev); el_receive(dev);
} } else {
else
{
/* /*
* Nothing? Something is broken! * Nothing? Something is broken!
*/ */
@ -702,8 +691,7 @@ static void el_receive(struct net_device *dev)
if (el_debug > 4) if (el_debug > 4)
printk(KERN_DEBUG " el_receive %d.\n", pkt_len); printk(KERN_DEBUG " el_receive %d.\n", pkt_len);
if ((pkt_len < 60) || (pkt_len > 1536)) if (pkt_len < 60 || pkt_len > 1536) {
{
if (el_debug) if (el_debug)
printk(KERN_DEBUG "%s: bogus packet, length=%d\n", dev->name, pkt_len); printk(KERN_DEBUG "%s: bogus packet, length=%d\n", dev->name, pkt_len);
dev->stats.rx_over_errors++; dev->stats.rx_over_errors++;
@ -722,26 +710,23 @@ static void el_receive(struct net_device *dev)
*/ */
outw(0x00, GP_LOW); outw(0x00, GP_LOW);
if (skb == NULL) if (skb == NULL) {
{
printk(KERN_INFO "%s: Memory squeeze, dropping packet.\n", dev->name); printk(KERN_INFO "%s: Memory squeeze, dropping packet.\n", dev->name);
dev->stats.rx_dropped++; dev->stats.rx_dropped++;
return; return;
} } else {
else skb_reserve(skb, 2); /* Force 16 byte alignment */
{
skb_reserve(skb,2); /* Force 16 byte alignment */
/* /*
* The read increments through the bytes. The interrupt * The read increments through the bytes. The interrupt
* handler will fix the pointer when it returns to * handler will fix the pointer when it returns to
* receive mode. * receive mode.
*/ */
insb(DATAPORT, skb_put(skb,pkt_len), pkt_len); insb(DATAPORT, skb_put(skb, pkt_len), pkt_len);
skb->protocol=eth_type_trans(skb,dev); skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb); netif_rx(skb);
dev->last_rx = jiffies; dev->last_rx = jiffies;
dev->stats.rx_packets++; dev->stats.rx_packets++;
dev->stats.rx_bytes+=pkt_len; dev->stats.rx_bytes += pkt_len;
} }
return; return;
} }
@ -760,7 +745,7 @@ static void el_reset(struct net_device *dev)
struct net_local *lp = netdev_priv(dev); struct net_local *lp = netdev_priv(dev);
int ioaddr = dev->base_addr; int ioaddr = dev->base_addr;
if (el_debug> 2) if (el_debug > 2)
printk(KERN_INFO "3c501 reset..."); printk(KERN_INFO "3c501 reset...");
outb(AX_RESET, AX_CMD); /* Reset the chip */ outb(AX_RESET, AX_CMD); /* Reset the chip */
outb(AX_LOOP, AX_CMD); /* Aux control, irq and loopback enabled */ outb(AX_LOOP, AX_CMD); /* Aux control, irq and loopback enabled */
@ -794,7 +779,8 @@ static int el1_close(struct net_device *dev)
int ioaddr = dev->base_addr; int ioaddr = dev->base_addr;
if (el_debug > 2) if (el_debug > 2)
printk(KERN_INFO "%s: Shutting down Ethernet card at %#x.\n", dev->name, ioaddr); printk(KERN_INFO "%s: Shutting down Ethernet card at %#x.\n",
dev->name, ioaddr);
netif_stop_queue(dev); netif_stop_queue(dev);
@ -822,18 +808,14 @@ static void set_multicast_list(struct net_device *dev)
{ {
int ioaddr = dev->base_addr; int ioaddr = dev->base_addr;
if(dev->flags&IFF_PROMISC) if (dev->flags & IFF_PROMISC) {
{
outb(RX_PROM, RX_CMD); outb(RX_PROM, RX_CMD);
inb(RX_STATUS); inb(RX_STATUS);
} } else if (dev->mc_list || dev->flags & IFF_ALLMULTI) {
else if (dev->mc_list || dev->flags&IFF_ALLMULTI) /* Multicast or all multicast is the same */
{ outb(RX_MULT, RX_CMD);
outb(RX_MULT, RX_CMD); /* Multicast or all multicast is the same */
inb(RX_STATUS); /* Clear status. */ inb(RX_STATUS); /* Clear status. */
} } else {
else
{
outb(RX_NORM, RX_CMD); outb(RX_NORM, RX_CMD);
inb(RX_STATUS); inb(RX_STATUS);
} }