Virtex® Family FPGAs

[s021897]

I recently got a webserver to run on my XUPV2P board in EDK 10.1 sp3 using lwip. Because it's such a hassle to load both the executable.elf as the image.mfs to the DDR every time, I wanted to create the mfs at runtime from data on the CF-card. Although the mfs is created and the files seem to be transfered, none of the files are available after initialization. The code I use is the following:

typedef unsigned char	BYTE;
#define MAX_DIR_ENTRIES 50
#define MFS_NUMBYTES 8000000
#define MFS_BASE_ADDRESS 0x92000000
#define MFS_INIT_TYPE MFSINIT_IMAGE
int initMemFileSystem() {
  int numDirEntries = 0;
  dirent de[MAX_DIR_ENTRIES];
  SYSACE_FILE* tmp;
  int i, fd;
  char* path = "a:\\web";
  char buffer[20], charBuff2[15]; 
  BYTE* byteBuffer; 
	
  xil_printf( "Before mfs_init_FS\r\n" );
  mfs_init_fs (MFS_NUMBYTES, (char*)(MFS_BASE_ADDRESS + 4), MFS_INIT_TYPE);
  xil_printf( "After mfs_init_FS\r\n" );

  if( sysace_chdir(path) == -1 )
  {
    xil_printf("ERROR: Can't change directory to %s.\n\r", path);
    return;
  }
	
  xil_printf( "Before sysace_readdir\r\n" );
  numDirEntries = sysace_readdir(path, de, MAX_DIR_ENTRIES );
  xil_printf( "Num Dir entries = %d\r\n", numDirEntries );
  xil_printf( "After sysace_readdir\r\n" );
  for( i = 2; i < numDirEntries; i++ )
  {
    xil_printf( "File %d: %s.%s\r\n", i, de[i].name, de[i].ext );
	
    memset( buffer, '\0', 20);
    strcat( buffer, strtok(de[i].name, " ") );
    strcat( buffer, "." );
    strcat( buffer, de[i].ext );
		
    xil_printf("before sysace_fopen ()\r\n");
    tmp = sysace_fopen (buffer, "r");
    xil_printf("after sysace_fopen ()\r\n");
		
    if ( !tmp )
    {
      xil_printf("ERROR: Can't open SYSACE File %s\n\r", buffer);
    }
		
    xil_printf("Malloc-ing\r\n");
    byteBuffer = (BYTE*) malloc( sizeof(BYTE) * de[i].size );
    xil_printf("Finished malloc-ing\r\nStarting sysace_fread\r\n");
		
    sysace_fread (byteBuffer, 1, de[i].size, tmp);
    xil_printf("After sysace_fread\r\n");
		
    if((fd = mfs_file_open(buffer, MFS_MODE_CREATE)) == -1)
    {
      xil_printf("ERROR: Can't create %s\n\r", buffer);
    }
    if((fd = mfs_file_open(buffer, MFS_MODE_WRITE)) == -1)
    {
      xil_printf("ERROR: Can't open MFS File %s for writing\n\r", buffer);
    }
		
    if( mfs_file_write (fd, byteBuffer, de[i].size)==0 )
    {
      xil_printf("ERROR: Can't write to %s\n\r", buffer);
    }
    xil_printf("After possible read/create/open errors\n\r");
		
    mfs_file_close( fd );
    sysace_fclose( tmp );
		
    //memset( buffer, '\0', 20);
    free( byteBuffer );
  } //for()
}

int platform_init_fs() 
{
  /* initialize the memory file system (MFS) image pre-loaded into memory */
//mfs_init_fs(MFS_NUMBYTES, (char *)(MFS_BASE_ADDRESS+4), MFS_INIT_TYPE);
	
  xil_printf("Initializing File system\n\r");
  initMemFileSystem();
  xil_printf("File system initialized\n\r\n\r");
	
  /* check if we can access index.html */
  if (mfs_exists_file("index.html") == 0)
  {
    xil_printf("%s: ERROR: unable to locate index.html in MFS\n\r", __FUNCTION__);
    xil_printf("Please check if Memory File System has been loaded, "
				"and it has index.html file in root directory\n\r");
    return -1;
  }

  xil_printf("Memory File System initialized\n\r");
  return 0;
}

The library in system.mss looks like:

BEGIN LIBRARY
 PARAMETER LIBRARY_NAME = xilmfs
 PARAMETER LIBRARY_VER = 1.00.a
 PARAMETER PROC_INSTANCE = microblaze_0
 PARAMETER need_utils = true
 PARAMETER base_address = 0x92000000
 PARAMETER numbytes = 8000000
 PARAMETER init_type = MFSINIT_IMAGE
END

And this gives the following output in Hyperterminal:

Initializing File system
Before mfs_init_FS
After mfs_init_FS
Before sysace_readdir
Num Dir entries = 4
After sysace_readdir
File 2: MAIN    .CSS
before sysace_fopen ()
after sysace_fopen ()
Malloc-ing
Finished malloc-ing
Starting sysace_fread
After sysace_fread
After possible read/create/open errors
File 3: INDEX   .HTM
before sysace_fopen ()
after sysace_fopen ()
Malloc-ing
Finished malloc-ing
Starting sysace_fread
After sysace_fread
After possible read/create/open errors
File system initialized

platform_init_fs: ERROR: unable to locate index.html in MFS
Please check if Memory File System has been loaded, and it has index.html file in root directory

web server started
requested file index.html not found, returning 404

Can anyone help help solve this problem?

Thanks!

Message Edited by s021897 on 04-24-2009 08:16 AM