[openib-general] Re: mstflint on sparc - things to test

[Tom Duffy]

On Mon, 2005-01-17 at 23:05 +0200, Michael S. Tsirkin wrote:
> - run test2 - same as test1 changing the device file to the file under
>   /proc/bus/pci

And I had to send the ioctl, but after that, I get:

tat:~# ./mmap-test
value at 0x000f0014 is 0x00a15a44

-tduffy

#define BAR0 0x1ff00100000ull
#define _XOPEN_SOURCE 500
#define _FILE_OFFSET_BITS 64
#include <sys/mman.h>
#include <sys/pci.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>

int main()
{
	int fd;
	void *ptr;
	unsigned value;
	unsigned long long offset = BAR0;
	fd = open("/proc/bus/pci/0000:81/00.0",O_RDWR | O_SYNC);
	if (fd<0) {
		perror("open");
		return 1;
	}

	ioctl(fd, PCIIOC_MMAP_IS_MEM);

	ptr = mmap(NULL, 0x100000, PROT_READ | PROT_WRITE,
			MAP_SHARED, fd, offset);

	if ( (! ptr) || (ptr == MAP_FAILED) ) {
		perror("map");
		return 1;
	}

	value= *( (unsigned*)(ptr + 0x000f0014) );
	
	printf("value at 0x000f0014 is %#8.8x\n", value);

	return 0;
}


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