#endif
lbaint_t lba; /* number of blocks */
unsigned long blksz; /* block size */
+ int log2blksz; /* for convenience: log2(blksz) */
char vendor [40+1]; /* IDE model, SCSI Vendor */
char product[20+1]; /* IDE Serial no, SCSI product */
char revision[8+1]; /* firmware revision */
#define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz))
#define PAD_TO_BLOCKSIZE(size, block_dev_desc) \
(PAD_SIZE(size, block_dev_desc->blksz))
+#define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
+ ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
+ ((x & 0xffff0000) ? 16 : 0))
+#define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
/* Interface types: */
#define IF_TYPE_UNKNOWN 0