Is there an option to limit in FC-SCST the max size of data transfer?

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Hi,

I'm looking for a way to limit the size of max data transferred in a
single SCSI command when using FC-SCST (isp_scst).

Generally - using SCSI over FC in target mode - Is there a way for the
target device to declare what is the maximum size of IO data that it
is capable of receiving in a single SCSI command?
I know there is the 'block limits vpd page', which specifies the max
transfer size, however, I understand this page code is optional, so It
is not possible to rely on it.
Is it the FC layer that can communicate and enforce such a limit?

Is there any option in any of SCST modules to set this option?

Thanks in advance,

SG
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