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:
parent
68d579fb93
commit
a35f5de776
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@ -17,7 +17,7 @@
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Annapolis MD 21403
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Annapolis MD 21403
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Fixed (again!) the missing interrupt locking on TX/RX shifting.
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Fixed (again!) the missing interrupt locking on TX/RX shifting.
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Alan Cox <Alan.Cox@linux.org>
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Alan Cox <Alan.Cox@linux.org>
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Removed calls to init_etherdev since they are no longer needed, and
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Removed calls to init_etherdev since they are no longer needed, and
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cleaned up modularization just a bit. The driver still allows only
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cleaned up modularization just a bit. The driver still allows only
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@ -29,16 +29,16 @@
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the board. Now getting 150K/second FTP with a 3c501 card. Still playing
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the board. Now getting 150K/second FTP with a 3c501 card. Still playing
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with a TX-TX optimisation to see if we can touch 180-200K/second as seems
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with a TX-TX optimisation to see if we can touch 180-200K/second as seems
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theoretically maximum.
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theoretically maximum.
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19950402 Alan Cox <Alan.Cox@linux.org>
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19950402 Alan Cox <Alan.Cox@linux.org>
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Cleaned up for 2.3.x because we broke SMP now.
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Cleaned up for 2.3.x because we broke SMP now.
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20000208 Alan Cox <alan@redhat.com>
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20000208 Alan Cox <alan@redhat.com>
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Check up pass for 2.5. Nothing significant changed
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Check up pass for 2.5. Nothing significant changed
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20021009 Alan Cox <alan@redhat.com>
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20021009 Alan Cox <alan@redhat.com>
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Fixed zero fill corner case
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Fixed zero fill corner case
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20030104 Alan Cox <alan@redhat.com>
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20030104 Alan Cox <alan@redhat.com>
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For the avoidance of doubt the "preferred form" of this code is one which
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For the avoidance of doubt the "preferred form" of this code is one which
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@ -139,8 +139,8 @@ static const char version[] =
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* The boilerplate probe code.
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* The boilerplate probe code.
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*/
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*/
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static int io=0x280;
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static int io = 0x280;
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static int irq=5;
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static int irq = 5;
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static int mem_start;
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static int mem_start;
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/**
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/**
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@ -229,8 +229,7 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
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* Read the station address PROM data from the special port.
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* Read the station address PROM data from the special port.
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*/
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*/
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for (i = 0; i < 6; i++)
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for (i = 0; i < 6; i++) {
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{
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outw(i, ioaddr + EL1_DATAPTR);
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outw(i, ioaddr + EL1_DATAPTR);
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station_addr[i] = inb(ioaddr + EL1_SAPROM);
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station_addr[i] = inb(ioaddr + EL1_SAPROM);
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}
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}
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@ -240,28 +239,24 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
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*/
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*/
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if (station_addr[0] == 0x02 && station_addr[1] == 0x60
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if (station_addr[0] == 0x02 && station_addr[1] == 0x60
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&& station_addr[2] == 0x8c)
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&& station_addr[2] == 0x8c)
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{
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mname = "3c501";
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mname = "3c501";
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} else if (station_addr[0] == 0x00 && station_addr[1] == 0x80
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else if (station_addr[0] == 0x00 && station_addr[1] == 0x80
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&& station_addr[2] == 0xC8)
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&& station_addr[2] == 0xC8)
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{
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mname = "NP943";
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mname = "NP943";
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}
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else {
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else {
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release_region(ioaddr, EL1_IO_EXTENT);
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release_region(ioaddr, EL1_IO_EXTENT);
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return -ENODEV;
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return -ENODEV;
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}
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}
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/*
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/*
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* We auto-IRQ by shutting off the interrupt line and letting it float
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* We auto-IRQ by shutting off the interrupt line and letting it
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* high.
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* float high.
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*/
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*/
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dev->irq = irq;
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dev->irq = irq;
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if (dev->irq < 2)
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if (dev->irq < 2) {
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{
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unsigned long irq_mask;
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unsigned long irq_mask;
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irq_mask = probe_irq_on();
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irq_mask = probe_irq_on();
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@ -274,8 +269,7 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
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mdelay(20);
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mdelay(20);
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autoirq = probe_irq_off(irq_mask);
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autoirq = probe_irq_off(irq_mask);
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if (autoirq == 0)
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if (autoirq == 0) {
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{
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printk(KERN_WARNING "%s probe at %#x failed to detect IRQ line.\n",
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printk(KERN_WARNING "%s probe at %#x failed to detect IRQ line.\n",
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mname, ioaddr);
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mname, ioaddr);
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release_region(ioaddr, EL1_IO_EXTENT);
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release_region(ioaddr, EL1_IO_EXTENT);
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@ -292,7 +286,8 @@ static int __init el1_probe1(struct net_device *dev, int ioaddr)
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if (autoirq)
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if (autoirq)
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dev->irq = autoirq;
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dev->irq = autoirq;
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printk(KERN_INFO "%s: %s EtherLink at %#lx, using %sIRQ %d.\n", dev->name, mname, dev->base_addr,
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printk(KERN_INFO "%s: %s EtherLink at %#lx, using %sIRQ %d.\n",
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dev->name, mname, dev->base_addr,
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autoirq ? "auto":"assigned ", dev->irq);
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autoirq ? "auto":"assigned ", dev->irq);
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#ifdef CONFIG_IP_MULTICAST
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#ifdef CONFIG_IP_MULTICAST
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@ -343,7 +338,8 @@ static int el_open(struct net_device *dev)
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if (el_debug > 2)
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if (el_debug > 2)
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printk(KERN_DEBUG "%s: Doing el_open()...", dev->name);
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printk(KERN_DEBUG "%s: Doing el_open()...", dev->name);
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if ((retval = request_irq(dev->irq, &el_interrupt, 0, dev->name, dev)))
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retval = request_irq(dev->irq, &el_interrupt, 0, dev->name, dev);
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if (retval)
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return retval;
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return retval;
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spin_lock_irqsave(&lp->lock, flags);
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spin_lock_irqsave(&lp->lock, flags);
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@ -371,8 +367,9 @@ static void el_timeout(struct net_device *dev)
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int ioaddr = dev->base_addr;
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int ioaddr = dev->base_addr;
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if (el_debug)
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if (el_debug)
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printk (KERN_DEBUG "%s: transmit timed out, txsr %#2x axsr=%02x rxsr=%02x.\n",
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printk(KERN_DEBUG "%s: transmit timed out, txsr %#2x axsr=%02x rxsr=%02x.\n",
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dev->name, inb(TX_STATUS), inb(AX_STATUS), inb(RX_STATUS));
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dev->name, inb(TX_STATUS),
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inb(AX_STATUS), inb(RX_STATUS));
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dev->stats.tx_errors++;
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dev->stats.tx_errors++;
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outb(TX_NORM, TX_CMD);
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outb(TX_NORM, TX_CMD);
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outb(RX_NORM, RX_CMD);
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outb(RX_NORM, RX_CMD);
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@ -425,8 +422,7 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev)
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netif_stop_queue(dev);
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netif_stop_queue(dev);
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do
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do {
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{
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int len = skb->len;
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int len = skb->len;
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int pad = 0;
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int pad = 0;
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int gp_start;
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int gp_start;
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@ -435,10 +431,10 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev)
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if (len < ETH_ZLEN)
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if (len < ETH_ZLEN)
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pad = ETH_ZLEN - len;
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pad = ETH_ZLEN - len;
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gp_start = 0x800 - ( len + pad );
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gp_start = 0x800 - (len + pad);
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lp->tx_pkt_start = gp_start;
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lp->tx_pkt_start = gp_start;
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lp->collisions = 0;
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lp->collisions = 0;
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dev->stats.tx_bytes += skb->len;
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dev->stats.tx_bytes += skb->len;
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@ -455,37 +451,42 @@ static int el_start_xmit(struct sk_buff *skb, struct net_device *dev)
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lp->txing = 1;
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lp->txing = 1;
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/*
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/*
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* Turn interrupts back on while we spend a pleasant afternoon
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* Turn interrupts back on while we spend a pleasant
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* loading bytes into the board
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* afternoon loading bytes into the board
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*/
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*/
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spin_unlock_irqrestore(&lp->lock, flags);
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spin_unlock_irqrestore(&lp->lock, flags);
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outw(0x00, RX_BUF_CLR); /* Set rx packet area to 0. */
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/* Set rx packet area to 0. */
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outw(gp_start, GP_LOW); /* aim - packet will be loaded into buffer start */
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outw(0x00, RX_BUF_CLR);
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outsb(DATAPORT,buf,len); /* load buffer (usual thing each byte increments the pointer) */
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/* aim - packet will be loaded into buffer start */
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outw(gp_start, GP_LOW);
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/* load buffer (usual thing each byte increments the pointer) */
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outsb(DATAPORT, buf, len);
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if (pad) {
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if (pad) {
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while(pad--) /* Zero fill buffer tail */
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while (pad--) /* Zero fill buffer tail */
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outb(0, DATAPORT);
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outb(0, DATAPORT);
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}
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}
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outw(gp_start, GP_LOW); /* the board reuses the same register */
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/* the board reuses the same register */
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outw(gp_start, GP_LOW);
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if(lp->loading != 2)
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if (lp->loading != 2) {
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{
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/* fire ... Trigger xmit. */
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outb(AX_XMIT, AX_CMD); /* fire ... Trigger xmit. */
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outb(AX_XMIT, AX_CMD);
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lp->loading=0;
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lp->loading = 0;
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dev->trans_start = jiffies;
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dev->trans_start = jiffies;
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if (el_debug > 2)
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if (el_debug > 2)
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printk(KERN_DEBUG " queued xmit.\n");
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printk(KERN_DEBUG " queued xmit.\n");
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dev_kfree_skb (skb);
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dev_kfree_skb(skb);
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return 0;
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return 0;
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}
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}
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/* A receive upset our load, despite our best efforts */
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/* A receive upset our load, despite our best efforts */
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if(el_debug>2)
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if (el_debug > 2)
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printk(KERN_DEBUG "%s: burped during tx load.\n", dev->name);
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printk(KERN_DEBUG "%s: burped during tx load.\n",
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dev->name);
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spin_lock_irqsave(&lp->lock, flags);
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spin_lock_irqsave(&lp->lock, flags);
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}
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}
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while(1);
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while (1);
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}
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}
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@ -534,64 +535,59 @@ static irqreturn_t el_interrupt(int irq, void *dev_id)
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*/
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*/
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if (el_debug > 3)
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if (el_debug > 3)
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printk(KERN_DEBUG "%s: el_interrupt() aux=%#02x", dev->name, axsr);
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printk(KERN_DEBUG "%s: el_interrupt() aux=%#02x",
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dev->name, axsr);
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if(lp->loading==1 && !lp->txing)
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if (lp->loading == 1 && !lp->txing)
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printk(KERN_WARNING "%s: Inconsistent state loading while not in tx\n",
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printk(KERN_WARNING "%s: Inconsistent state loading while not in tx\n",
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dev->name);
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dev->name);
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if (lp->txing)
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{
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/*
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* Board in transmit mode. May be loading. If we are
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* loading we shouldn't have got this.
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*/
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if (lp->txing) {
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/*
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* Board in transmit mode. May be loading. If we are
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* loading we shouldn't have got this.
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*/
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int txsr = inb(TX_STATUS);
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int txsr = inb(TX_STATUS);
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if(lp->loading==1)
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if (lp->loading == 1) {
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{
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if (el_debug > 2) {
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if(el_debug > 2)
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printk(KERN_DEBUG "%s: Interrupt while loading [",
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{
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dev->name);
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printk(KERN_DEBUG "%s: Interrupt while loading [", dev->name);
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printk(" txsr=%02x gp=%04x rp=%04x]\n",
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printk(KERN_DEBUG " txsr=%02x gp=%04x rp=%04x]\n", txsr, inw(GP_LOW),inw(RX_LOW));
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txsr, inw(GP_LOW), inw(RX_LOW));
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}
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}
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lp->loading=2; /* Force a reload */
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/* Force a reload */
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lp->loading = 2;
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spin_unlock(&lp->lock);
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spin_unlock(&lp->lock);
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goto out;
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goto out;
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}
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}
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if (el_debug > 6)
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if (el_debug > 6)
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printk(KERN_DEBUG " txsr=%02x gp=%04x rp=%04x", txsr, inw(GP_LOW),inw(RX_LOW));
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printk(KERN_DEBUG " txsr=%02x gp=%04x rp=%04x",
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txsr, inw(GP_LOW), inw(RX_LOW));
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if ((axsr & 0x80) && (txsr & TX_READY) == 0)
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if ((axsr & 0x80) && (txsr & TX_READY) == 0) {
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{
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/*
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/*
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* FIXME: is there a logic to whether to keep on trying or
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* FIXME: is there a logic to whether to keep
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* reset immediately ?
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* on trying or reset immediately ?
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*/
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*/
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if(el_debug>1)
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if (el_debug > 1)
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printk(KERN_DEBUG "%s: Unusual interrupt during Tx, txsr=%02x axsr=%02x"
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printk(KERN_DEBUG "%s: Unusual interrupt during Tx, txsr=%02x axsr=%02x gp=%03x rp=%03x.\n",
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" gp=%03x rp=%03x.\n", dev->name, txsr, axsr,
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dev->name, txsr, axsr,
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inw(ioaddr + EL1_DATAPTR), inw(ioaddr + EL1_RXPTR));
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inw(ioaddr + EL1_DATAPTR),
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inw(ioaddr + EL1_RXPTR));
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lp->txing = 0;
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lp->txing = 0;
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netif_wake_queue(dev);
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netif_wake_queue(dev);
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}
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} else if (txsr & TX_16COLLISIONS) {
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else if (txsr & TX_16COLLISIONS)
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{
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/*
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/*
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* Timed out
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* Timed out
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*/
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*/
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if (el_debug)
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if (el_debug)
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printk (KERN_DEBUG "%s: Transmit failed 16 times, Ethernet jammed?\n",dev->name);
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printk(KERN_DEBUG "%s: Transmit failed 16 times, Ethernet jammed?\n", dev->name);
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outb(AX_SYS, AX_CMD);
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outb(AX_SYS, AX_CMD);
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lp->txing = 0;
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lp->txing = 0;
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dev->stats.tx_aborted_errors++;
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dev->stats.tx_aborted_errors++;
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netif_wake_queue(dev);
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netif_wake_queue(dev);
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}
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} else if (txsr & TX_COLLISION) {
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else if (txsr & TX_COLLISION)
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{
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/*
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/*
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* Retrigger xmit.
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* Retrigger xmit.
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*/
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*/
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@ -599,7 +595,8 @@ static irqreturn_t el_interrupt(int irq, void *dev_id)
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if (el_debug > 6)
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if (el_debug > 6)
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printk(KERN_DEBUG " retransmitting after a collision.\n");
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printk(KERN_DEBUG " retransmitting after a collision.\n");
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/*
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/*
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* Poor little chip can't reset its own start pointer
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* Poor little chip can't reset its own start
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* pointer
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*/
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*/
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outb(AX_SYS, AX_CMD);
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outb(AX_SYS, AX_CMD);
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@ -608,53 +605,45 @@ static irqreturn_t el_interrupt(int irq, void *dev_id)
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dev->stats.collisions++;
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dev->stats.collisions++;
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spin_unlock(&lp->lock);
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spin_unlock(&lp->lock);
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goto out;
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goto out;
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}
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} else {
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else
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{
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/*
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/*
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* It worked.. we will now fall through and receive
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* It worked.. we will now fall through and receive
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*/
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*/
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dev->stats.tx_packets++;
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dev->stats.tx_packets++;
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if (el_debug > 6)
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if (el_debug > 6)
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printk(KERN_DEBUG " Tx succeeded %s\n",
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printk(KERN_DEBUG " Tx succeeded %s\n",
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(txsr & TX_RDY) ? "." : "but tx is busy!");
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(txsr & TX_RDY) ? "." : "but tx is busy!");
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/*
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/*
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* This is safe the interrupt is atomic WRT itself.
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* This is safe the interrupt is atomic WRT itself.
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*/
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*/
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lp->txing = 0;
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lp->txing = 0;
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netif_wake_queue(dev); /* In case more to transmit */
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/* In case more to transmit */
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netif_wake_queue(dev);
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}
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}
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}
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} else {
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else
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/*
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{
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* In receive mode.
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/*
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*/
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* 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);
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue