Compex multiport

[Danilo Godec]

Here is a patch that makes my Compex FL400TX work. It introduces a new
module parameter 'compex_mp', that is used to indicate that such card is
present.

This is probably a very dirty hack... If someone is willing to brush it
up, please do so.

	D.


--- tulip.c.orig	Mon Dec 27 22:14:30 1999
+++ tulip.c	Mon Dec 27 22:29:57 1999
@@ -46,6 +46,8 @@
 static int reverse_probe = 0;
 #endif
 
+static int compex_mp = 0 ; 
+
 /* Keep the ring sizes a power of two for efficiency.
    Making the Tx ring too large decreases the effectiveness of channel
    bonding and packet priority.
@@ -142,6 +144,7 @@
 MODULE_PARM(reverse_probe, "i");
 MODULE_PARM(rx_copybreak, "i");
 MODULE_PARM(csr0, "i");
+MODULE_PARM(compex_mp, "i");
 MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
 MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
 #endif
@@ -537,6 +540,9 @@
 #endif
 static void set_rx_mode(struct device *dev);
 
+static u16 subsys_id;
+static u16 subsys_vendor_id;
+
 
 
 /* A list of all installed Tulip devices. */
@@ -572,6 +578,20 @@
 		pcibios_read_config_word(pci_bus, pci_device_fn,
 								 PCI_DEVICE_ID, &device);
 
+		pcibios_read_config_word(pci_bus, pci_device_fn,
+								 PCI_SUBSYSTEM_ID, &subsys_id );
+
+		pcibios_read_config_word(pci_bus, pci_device_fn,
+								 PCI_SUBSYSTEM_VENDOR_ID, &subsys_vendor_id );
+
+		if (debug > 2) {
+			printk(KERN_INFO "Subsys ID: %#x.\n",
+				   subsys_id);
+			printk(KERN_INFO "Subsys vendor ID: %#x.\n",
+					subsys_vendor_id);				 
+		}				 
+		
+
 		for (chip_idx = 0; pci_tbl[chip_idx].vendor_id; chip_idx++)
 			if (vendor == pci_tbl[chip_idx].vendor_id
 				&& (device & pci_tbl[chip_idx].device_id_mask) ==
@@ -761,6 +781,19 @@
 #endif
 	}
 
+if ( compex_mp ) {
+
+	if ( subsys_vendor_id == 0x130 ) {
+		if ( multiport_cnt > 0 )
+			irq = last_irq;
+		multiport_cnt++;
+		if ( debug > 2 ) 
+			printk(KERN_INFO "\nMultiport count: %d\n",
+				   multiport_cnt);
+		if ( multiport_cnt > 3 ) 
+			multiport_cnt=0;
+	}
+}	
 	for (i = 0; i < 6; i++)
 		printk("%c%2.2X", i ? ':' : ' ', last_phys_addr[i] = dev->dev_addr[i]);
 	printk(", IRQ %d.\n", irq);