Hi Andrew, (Adding CC' to linux-scsi, as it's a more appropriate venue than the target list) On Mon, 2013-09-16 at 13:27 -0700, Andrew Falanga wrote: > Hello, > > I truly hope that this is the correct forum for this question. If > not, forgive me and if possible, please direct me to the correct > forum. My question is quite simple (I hope the answer is equally > simple). Does Linux support 32-byte CDBs in SCSI? I've done enough > research that I think the answer may depend on the kernel version in > use, and the particular upper layer driver in use (i.e. sd, sg, bsg, > etc.). If so, the relevant information from my linux system is: > > * CentOS 6.2 -- 2.6.32-71 kernel 32-bit > > I'd be using the SG driver. > My understanding is that you need to use BSG in order to submit > 16 byte CDBs from userspace. Also, sd.c will generate > 16 byte CDBs (eg: WRITE_32 + READ_32) when DIF protection is enabled. I believe that both are supported on v2.6.32.x, but you might want to double check to be sure. --nab -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
