patch-2.3.43 linux/drivers/net/eepro.c

• Lines: 346
• Date: Thu Feb 10 12:22:03 2000
• Orig file: v2.3.42/linux/drivers/net/eepro.c
• Orig date: Tue Jan 4 13:57:17 2000

diff -u --recursive --new-file v2.3.42/linux/drivers/net/eepro.c linux/drivers/net/eepro.c
@@ -138,18 +138,6 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
-
-
-/* need to remove these asap      */
-/* 2.1.xx compatibility macros... */
-/*                                */
-
-
-#include <linux/version.h>
-
-/* For linux 2.1.xx */
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
-
 #include <linux/spinlock.h>
 #include <linux/init.h>
 #include <linux/delay.h>
@@ -160,16 +148,6 @@
 /* udelay(2) */
 #define compat_init_data     __initdata
 
-#else 
-/* for 2.x */
-
-#define compat_dev_kfree_skb( skb, mode ) dev_kfree_skb( (skb), (mode) )
-#define test_and_set_bit(a,b) set_bit((a),(b))
-#define SLOW_DOWN SLOW_DOWN_IO
-#define compat_init_data
-
-#endif
-
 
 /* First, a few definitions that the brave might change. */
 /* A zero-terminated list of I/O addresses to be probed. */
@@ -210,9 +188,8 @@
 	int version;	/* a flag to indicate if this is a TX or FX
 				   version of the 82595 chip. */
 	int stepping;
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
+
 	spinlock_t lock; /* Serializing lock  */ 
-#endif
 };
 
 /* The station (ethernet) address prefix, used for IDing the board. */
@@ -299,6 +276,7 @@
 #define ee_id_eepro10p0 0x10   /* ID for eepro/10+ */
 #define ee_id_eepro10p1 0x31
 
+#define TX_TIMEOUT 40
 
 /* Index to functions, as function prototypes. */
 
@@ -313,6 +291,7 @@
 static int	eepro_close(struct net_device *dev);
 static struct enet_statistics *eepro_get_stats(struct net_device *dev);
 static void     set_multicast_list(struct net_device *dev);
+static void     eepro_tx_timeout (struct net_device *dev);
 
 static int read_eeprom(int ioaddr, int location);
 static void hardware_send_packet(struct net_device *dev, void *buf, short length);
@@ -710,14 +689,15 @@
 				return -ENOMEM;
 			memset(dev->priv, 0, sizeof(struct eepro_local));
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
-			spin_lock_init(&(((struct eepro_local *)dev->priv)->lock));
-#endif
+			((struct eepro_local *)dev->priv)->lock = SPIN_LOCK_UNLOCKED;
+
 			dev->open               = eepro_open;
 			dev->stop               = eepro_close;
 			dev->hard_start_xmit    = eepro_send_packet;
 			dev->get_stats          = eepro_get_stats;
 			dev->set_multicast_list = &set_multicast_list;
+			dev->tx_timeout		= eepro_tx_timeout;
+			dev->watchdog_timeo	= TX_TIMEOUT;
 
 			/* Fill in the fields of the device structure with
 			   ethernet generic values */
@@ -969,10 +949,8 @@
 
 	lp->tx_start = lp->tx_end = XMT_LOWER_LIMIT << 8; /* or = RCV_RAM */
 	lp->tx_last = 0;
-	
-	dev->tbusy = 0;
-	dev->interrupt = 0;
-	dev->start = 1;
+
+	netif_start_queue(dev);	
 
 	if (net_debug > 3)
 		printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
@@ -983,81 +961,53 @@
 	return 0;
 }
 
-static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
+static void eepro_tx_timeout (struct net_device *dev)
 {
-	struct eepro_local *lp = (struct eepro_local *)dev->priv;
+	struct eepro_local *lp = (struct eepro_local *) dev->priv;
 	int ioaddr = dev->base_addr;
 	int rcv_ram = dev->mem_end;
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
+	/* if (net_debug > 1) */
+	printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
+		"network cable problem");
+	/* This is not a duplicate. One message for the console, 
+	   one for the the log file  */
+	printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
+		"network cable problem");
+	lp->stats.tx_errors++;
+
+	/* Try to restart the adaptor. */
+	outb (SEL_RESET_CMD, ioaddr);
+	/* We are supposed to wait for 2 us after a SEL_RESET */
+	SLOW_DOWN;
+	SLOW_DOWN;
+
+	/* Do I also need to flush the transmit buffers here? YES? */
+	lp->tx_start = lp->tx_end = rcv_ram;
+	lp->tx_last = 0;
+
+	dev->trans_start = jiffies;
+	netif_start_queue (dev);
+
+	outb (RCV_ENABLE_CMD, ioaddr);
+}
+
+
+static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
+{
+	struct eepro_local *lp = (struct eepro_local *)dev->priv;
 	unsigned long flags;
-#endif
 	
 	if (net_debug > 5)
 		printk(KERN_DEBUG  "%s: entering eepro_send_packet routine.\n", dev->name);
 	
-	if (dev->tbusy) {
-		/* If we get here, some higher level has decided we are broken.
-		   There should really be a "kick me" function call instead. */
-		int tickssofar = jiffies - dev->trans_start;
-		if (tickssofar < 40)
-			return 1;
-	
-		/* if (net_debug > 1) */
-		printk(KERN_ERR "%s: transmit timed out, %s?\n", dev->name, 
-			"network cable problem");
-		/* This is not a duplicate. One message for the console, 
-		   one for the the log file  */
-		printk(KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
-			"network cable problem");
-		lp->stats.tx_errors++;
-
-		/* Try to restart the adaptor. */
-		outb(SEL_RESET_CMD, ioaddr); 
-		/* We are supposed to wait for 2 us after a SEL_RESET */
-		SLOW_DOWN;
-		SLOW_DOWN;
-
-		/* Do I also need to flush the transmit buffers here? YES? */
-		lp->tx_start = lp->tx_end = rcv_ram; 
-		lp->tx_last = 0;
-	
-		dev->tbusy=0;
-		dev->trans_start = jiffies;
-
-		outb(RCV_ENABLE_CMD, ioaddr);
-
-	}
-
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20155
-	/* If some higher layer thinks we've missed an tx-done interrupt
-	   we are passed NULL. Caution: dev_tint() handles the cli()/sti()
-	   itself. */
-	/*	if (skb == NULL) {
-		dev_tint(dev);
-	  	return 0;
-	}*/
-	/* according to A. Cox, this is obsolete since 1.0 */
-#endif
-
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
 	spin_lock_irqsave(&lp->lock, flags);
-#endif
-
-	/* Block a timer-based transmit from overlapping. */
-	if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) {
-		printk(KERN_WARNING "%s: Transmitter access conflict.\n", dev->name);
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
-		spin_unlock_irqrestore(&lp->lock, flags);
-#endif
-	} else {
+	{
 		short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
 		unsigned char *buf = skb->data;
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
 		lp->stats.tx_bytes+=skb->len;
-#endif
 
 		hardware_send_packet(dev, buf, length);
 		dev->trans_start = jiffies;
@@ -1072,9 +1022,7 @@
 	if (net_debug > 5)
 		printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
 	spin_unlock_irqrestore(&lp->lock, flags);
-#endif
 	
 	return 0;
 }
@@ -1096,21 +1044,7 @@
                 return;
         }
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
         spin_lock(&lp->lock);
-#endif
-
-	if (dev->interrupt) {
-		printk(KERN_ERR "%s: Re-entering the interrupt handler.\n", dev->name);
-
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
-		spin_unlock(&lp->lock);
-		/* FIXME : with the lock, could this ever happen ? */
-#endif
-
-		return;
-	}
-	dev->interrupt = 1;
 
 	if (net_debug > 5)
 		printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
@@ -1143,14 +1077,10 @@
 	
 	} while ((boguscount-- > 0) && (status & 0x06));
 
-	dev->interrupt = 0; 
-
 	if (net_debug > 5)
 		printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name);
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
 	spin_unlock(&lp->lock);
-#endif
 	return;
 }
 
@@ -1161,8 +1091,7 @@
 	int rcv_ram = dev->mem_end;
 	short temp_reg;
 
-	dev->tbusy = 1;
-	dev->start = 0;
+	netif_stop_queue(dev);
 
 	outb(BANK1_SELECT, ioaddr); /* Switch back to Bank 1 */
 
@@ -1402,12 +1331,6 @@
 		service routines. */
 		outb(ALL_MASK, ioaddr + INT_MASK_REG);
 
-		if (dev->interrupt == 1) {
-			/* Enable RX and TX interrupts */
-			outb(ALL_MASK & ~(RX_MASK | TX_MASK), ioaddr + INT_MASK_REG); 
-			continue;
-		}
-
 		/* determine how much of the transmit buffer space is available */
 		if (lp->tx_end > lp->tx_start)
 			tx_available = XMT_RAM - (lp->tx_end - lp->tx_start);
@@ -1484,9 +1407,8 @@
 		lp->tx_last = last;
 		lp->tx_end = end;
 
-		if (dev->tbusy) {
-			dev->tbusy = 0;
-		}
+		if (test_bit(LINK_STATE_XOFF, &dev->flags))
+			netif_start_queue(dev);
 		
 		/* Enable RX and TX interrupts */
 		outb(ALL_MASK & ~(RX_MASK | TX_MASK), ioaddr + INT_MASK_REG);
@@ -1496,7 +1418,7 @@
 		return;
 	}
 
-	dev->tbusy = 1;
+	netif_stop_queue(dev);
 	if (net_debug > 5)
 		printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
 }
@@ -1529,9 +1451,7 @@
 			/* Malloc up new buffer. */
 			struct sk_buff *skb;
 
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
 			lp->stats.rx_bytes+=rcv_size;
-#endif
 			rcv_size &= 0x3fff;
 			skb = dev_alloc_skb(rcv_size+5);
 			if (skb == NULL) {
@@ -1622,8 +1542,7 @@
 		xmt_status = inw(ioaddr+IO_PORT); 
 		lp->tx_start = inw(ioaddr+IO_PORT);
 
-		dev->tbusy = 0;
-		mark_bh(NET_BH);
+		netif_wake_queue (dev);
 
 		if (xmt_status & 0x2000)
 			lp->stats.tx_packets++; 
@@ -1650,8 +1569,6 @@
 	}
 }
 
-#ifdef MODULE
-
 #define MAX_EEPRO 8
 static char devicename[MAX_EEPRO][9];
 static struct net_device dev_eepro[MAX_EEPRO];
@@ -1670,13 +1587,14 @@
 
 static int n_eepro = 0;
 /* For linux 2.1.xx */
-#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x20155
+
 MODULE_AUTHOR("Pascal Dupuis <dupuis@lei.ucl.ac.be> for the 2.1 stuff (locking,...)");
 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
 MODULE_PARM(io, "1-" __MODULE_STRING(MAX_EEPRO) "i");
 MODULE_PARM(irq, "1-" __MODULE_STRING(MAX_EEPRO) "i");
 MODULE_PARM(mem, "1-" __MODULE_STRING(MAX_EEPRO) "i");
-#endif 
+
+#ifdef MODULE
 
 int 
 init_module(void)