libata+SGIO: is .dma_boundary respected?

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Jens / Jeff,

Each libata driver registers a .dma_boundary field with SCSI.
This field is used to prevent merging of bio segments across
a hardware limitation boundary, usually 0xffff.

This looks like it works for regular block I/O,
but I'm not so sure about SGIO originated requests.

Any thoughts, or code you can point me to?

Thanks

Mark
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