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Date:      Thu, 4 Aug 2005 18:18:39 -0400
From:      "Heck, Steve" <Steve.Heck@am.sony.com>
To:        <freebsd-scsi@freebsd.org>
Subject:   [cam_periph_mapmen:?]
Message-ID:  <FFB1FA1FB113D3119E0E0090273AE57709539950@US-BC-XMSG-1>
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I am having problems Writing to a SCSI tape drive. =20

First the Block Size is being set to 65536 Bytes by Mode Select which =
succeeds.

printf ("Data compression enabled.\n");
 =20
  buf_data1c[0] =3D 0x00;
  buf_data1c[1] =3D 0x00;
  buf_data1c[2] =3D 0x10;
  buf_data1c[3] =3D 0x08;
  buf_data1c[4] =3D 0x7f;
  buf_data1c[5] =3D 0x00;
  buf_data1c[6] =3D 0x00;
  buf_data1c[7] =3D 0x00;
  buf_data1c[8] =3D 0x00;
  buf_data1c[9] =3D 0x01;
  buf_data1c[10] =3D 0x00;
  buf_data1c[11] =3D 0x00;
  buf_data1c[12] =3D 0x0f;
  buf_data1c[13] =3D 0x0e;
  buf_data1c[14] =3D 0xc0;
  buf_data1c[15] =3D 0x80;
  buf_data1c[16] =3D 0x00;
  buf_data1c[17] =3D 0x00;
  buf_data1c[18] =3D 0x00;
  buf_data1c[19] =3D 0x00;
  buf_data1c[20] =3D 0x00;
  buf_data1c[21] =3D 0x00;
  buf_data1c[22] =3D 0x00;
  buf_data1c[23] =3D 0x00;
  buf_data1c[24] =3D 0x00;
  buf_data1c[25] =3D 0x00;
  buf_data1c[26] =3D 0x00;
  buf_data1c[27] =3D 0x00;

  //unsigned char header[len];
  memset( header, 0, len );
  memset(&ccb,0,sizeof(ccb));
  ccb.ccb_h.path_id    =3D cam->path_id;
  ccb.ccb_h.target_id  =3D cam->target_id;
  ccb.ccb_h.target_lun =3D cam->target_lun;
  cam_fill_csio (&(ccb.csio), 1, NULL, CAM_DIR_OUT, MSG_SIMPLE_Q_TAG, =
buf_data1c, sizeof(buf_data1c), sizeof(ccb.csio.sense_data), 0, =
30*1000);
  ccb.csio.cdb_len =3D 6;
  ccb.csio.cdb_io.cdb_bytes[0] =3D 0x15;	// Mode Select
  ccb.csio.cdb_io.cdb_bytes[1] =3D 0x10;
  ccb.csio.cdb_io.cdb_bytes[4] =3D 0x1c;
  ccb.csio.cdb_io.cdb_bytes[5] =3D 0x00; =20
=20
  //int ret;
  if ((ret =3D cam_send_ccb(cam, &ccb)) < 0)
  {
      printf("cam_send_ccb: failed\n");
      cam_close_device(cam);
      return -1;
  }


The problem occurs when I try to Write one Fixed Block.


  unsigned char wbuf_data[65536]

  memset( header, 0, len );
  memset(&ccb,0,sizeof(ccb));
  ccb.ccb_h.path_id    =3D cam->path_id;
  ccb.ccb_h.target_id  =3D cam->target_id;
  ccb.ccb_h.target_lun =3D cam->target_lun;
  cam_fill_csio (&(ccb.csio), 1, NULL, CAM_DIR_OUT, MSG_SIMPLE_Q_TAG, =
wbuf_data, sizeof(wbuf_data), sizeof(ccb.csio.sense_data), 0, 900*1000);
  ccb.csio.cdb_len =3D 6;
  ccb.csio.cdb_io.cdb_bytes[0] =3D 0x0a;	// Write
  ccb.csio.cdb_io.cdb_bytes[1] =3D 0x01;
  ccb.csio.cdb_io.cdb_bytes[4] =3D 0x01;
  ccb.csio.cdb_io.cdb_bytes[5] =3D 0x00; =20

if ((ret =3D cam_send_ccb(cam, &ccb)) < 0)
  {
      printf("cam_send_ccb: failed\n");
      cam_close_device(cam);
      return -1;
  }

I get this error:

cam_periph_mapmem: attempt to map 68480 bytes, which is greater that =
DFLTPHYS(65536)

cam_send_ccb: failed

I do not see the Write cdb being sent when I make a SCSI trace.=20

Any help would be appreciated.

Thanks,
Steve

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