int aac_biosparm (struct scsi_device * sdev, struct block_device * bdev, sector_t capacity, int * geom);
Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and the appropriate number of cylinders so as not to exceed drive capacity. In order for disks equal to or larger than 1 GB to be addressable by the BIOS without exceeding the BIOS limitation of 1024 cylinders, Extended Translation should be enabled. With Extended Translation enabled, drives between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive are given a disk geometry of 255 heads and 63 sectors. However, if the BIOS detects that the Extended Translation setting does not match the geometry in the partition table, then the translation inferred from the partition table will be used by the BIOS, and a warning may be displayed.