Subject: [storm] iSER update request from Alex Nezhinsky on AHS size

From: Mike Ko <[email-masked]>
Date: Thu, 20 Aug 2009 16:26:23 -0700

Alex sent me the following iSER update request:

> In the Infiniband implementation ISER has to post recv-buffers for
> the maximal possible message length. If a PDU contains AHS, then no
> upper size limit can be set beforehand, because AHS size is not fixed
> (it is determined by the contents of BHS, TotalAHSLength field). Then
> our posted buffer may prove insufficient.
>
> Suggested solution: to add a hard limit on AHS length as an
> operational parameter, per session. This is in a sense similar to
> MaxOutstandingUnexpectedPDUs key which has no
> meaning in a stream-based protocol.

It sounds reasonable to me.  If there is no objection, we can add the MaxAHSLength key to the iSER update as Alex suggested.

Mike