Dear Sir:
I try recv1000.c(http://www.cs.usfca.edu/~cruse/cs635/recv1000.c)
kernel module in VMware WorkStation 6(because I have no money to buy
intel nic), which simulates a nic Intel 82545EM-A.
I modified the source code, try to make the code working in
vmware. But I failed:-(
I just modified DEVICE_ID and used dyn major in register_chrdev.
Logs:
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <0>
TDT <2>
next_to_use <2>
next_to_clean <0>
buffer_info[next_to_clean]
time_stamp <1dff8>
next_to_watch <0>
jiffies <1e125>
next_to_watch.status <0>
Now , I don't know the problem is about my code or vmware.
Hope for your reply!
This is the patch:
--- recv1000.c 2008-07-22 17:25:42.000000000 +0800
+++ recv1000-mod.c 2008-07-22 17:26:16.000000000 +0800
@@ -27,9 +27,11 @@
#include <linux/interrupt.h> // for request_irq()
#include <asm/uaccess.h> // for copy_to_user()
#include <asm/io.h> // for ioremap()
+#include <linux/delay.h> // for udelay()
#define VENDOR_ID 0x8086 // Intel Corporation
-#define DEVICE_ID 0x109A // 82573L nic device
+#define DEVICE_ID 0x100F // 82545EM-A nic device
+//#define DEVICE_ID 0x109A // 82573L nic device
//#define DEVICE_ID 0x10B9 // 82572EI nic device
//#define DEVICE_ID 0x107C // 82541PI nic device
#define KMEM_SIZE (4<<12) // kernel memory allocation
@@ -46,7 +48,7 @@
char modname[] = "recv1000";
char devname[] = "nic";
-int my_major = 97;
+int my_major = 0;
struct pci_dev *devp;
unsigned char mac[6];
unsigned int irq;
@@ -229,7 +231,6 @@
// issue confirmation-message to the log-file
printk( "<1>\nInstalling \'%s\' module ", modname );
- printk( "(major=%d) \n", my_major );
// detect the ethernet controller
devp = pci_get_device( VENDOR_ID, DEVICE_ID, NULL );
@@ -340,7 +341,17 @@
// create pseudo-file and register this device-driver
create_proc_info_entry( modname, 0, NULL, my_get_info );
- return register_chrdev( my_major, devname, &my_fops );
+ my_major=register_chrdev( my_major, devname, &my_fops );
+ if(my_major > 0)
+ {
+ printk( "register_chrdev(major=%d) \n", my_major );
+ return 0;
+ }
+ else
+ {
+ printk("register_chrdev error.\n");
+ return -1;
+ }
}
module_init( my_init );
--
Best Regards :-)
-------------------------------------------
Wang Yao(王耀),[EMAIL PROTECTED] [EMAIL PROTECTED] wangyao01＠baidu.com
[EMAIL PROTECTED]
HomePage: http://cudev.cublog.cn
IBM Club Harbin Institute Of Technology
Address:NO.92 West Da-Zhi Street,NanGang District,Harbin,Heilongjiang
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