Messages in this thread | | | Date | Wed, 22 Jan 2014 12:09:14 +0200 | From | Sagi Grimberg <> | Subject | Re: [PATCH-v2 11/17] target/iblock: Add blk_integrity + BIP passthrough support |
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On 1/22/2014 3:52 AM, Martin K. Petersen wrote: >>>>>> "Sagi" == Sagi Grimberg <sagig@dev.mellanox.co.il> writes: > Sagi> Please remind me why we ignore IP-CSUM guard type again? MKP, > Sagi> will this be irrelevant for the initiator as well? if so, I don't > Sagi> see a reason to expose this in RDMA verbs. > > I don't see much use for IP checksum for the target. You are required by > SBC to use T10 CRC on the wire so there is no point in converting to IP > checksum in the backend. > > My impending patches will allow you to pass through PI with T10 CRC to a > device with an IP checksum block integrity profile (i.e. the choice of > checksum is a per-bio bip flag instead of an HBA-enforced global). >
OK, so IP checksum support still makes sense.
Thanks!
Sagi.
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