| Subject | Re: [PATCH 09/14] target/configfs: Expose protection device attributes | From | "Martin K. Petersen" <> | Date | Fri, 10 Jan 2014 16:01:23 -0500 |
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>>>>> "nab" == Nicholas A Bellinger <nab@daterainc.com> writes:
nab> This patch adds support for exposing DIF protection device nab> attributes via configfs. This includes:
nab> pi_prot_type: Protection Type (0, 1, 3 currently support) nab> pi_prot_version: Protection Version (DIF v1 currently supported)
What's DIF v2?
nab> pi_guard_type: Guard Type (1=DIF CRC, 2=IP CRC)
The IP checksum is only supported by DIX between OS and initiator, not by the target. I guess we could signal to the initiator via a vendor-private VPD that IP checksum is supported directly. But now what we have hardware-accelerated T10 CRC I don't think it's a big deal.
(scsi_debug supports IP checksum because it's both initiator and target).
-- Martin K. Petersen Oracle Linux Engineering
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