Messages in this thread | | | Date | Sun, 12 Jan 2014 14:18:15 +0200 | From | Sagi Grimberg <> | Subject | Re: [PATCH 09/14] target/configfs: Expose protection device attributes |
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<SNIP>
> 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.
shouldn't it stick around if it is not deprecated yet, the transport is required to support ip-csum->CRC conversion anyhow.
> (scsi_debug supports IP checksum because it's both initiator and > target). >
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