On Thu, Oct 17, 2024 at 05:09:23PM +0530, Anuj Gupta wrote: > This snippet prevents a scenario where a apptag check is specified without > a reftag check and vice-versa, which is not possible for scsi[1]. > But for > block layer generated integrity apptag check (BIP_CHECK_APPTAG) is not > specified. When scsi drive is formatted with type1/2 PI, block layer would > specify refcheck but not appcheck. Hence, these I/O's would fail. Do you > see how we can handle this? Well, this is also related to difference in capability checking. Just curious, do you have any user of the more fine grained checking in NVMe? If not we could support the SCSI semantics only and emulate them using the fine grained NVMe semantics and have no portability problems.
