RE: [RESEND][PATCH 06/10][SCSI]mpt2sas: For >2TB volumes, DirectDrive support sends IO's with LBA bit 31 to IR FW instead of DirectDrive

From: Elliott, Robert (Server Storage)
Date: Sun Jul 13 2014 - 13:02:45 EST

> -----Original Message-----
> From: linux-scsi-owner@xxxxxxxxxxxxxxx [mailto:linux-scsi-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Martin K. Petersen

> Also, this is not touched by the patch, but you're then doing:
> (*(__be32 *)(&cdb_ptr[i])) = cpu_to_be32(p_lba);
> What if this is a 6-byte READ/WRITE command? You'll end up exceeding the
> size of the LBA field.

All this is inside:
if (cdb0 == READ_16 || cdb0 == READ_10 ||
cdb0 == WRITE_16 || cdb0 == WRITE_10) {

so READ_6 and WRITE_6 and all their oddities are not a problem here.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at