From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sagi Grimberg Subject: Re: [PATCH 02/13] IB/core: allow passing mapping an offset into the SG in ib_map_mr_sg Date: Sun, 28 Feb 2016 19:50:14 +0200 Message-ID: <56D33356.1020707@dev.mellanox.co.il> References: <1456596631-19418-1-git-send-email-hch@lst.de> <1456596631-19418-3-git-send-email-hch@lst.de> <56D30AF7.1060205@dev.mellanox.co.il> <20160228162012.GA23791@lst.de> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160228162012.GA23791@lst.de> Sender: target-devel-owner@vger.kernel.org To: Christoph Hellwig Cc: linux-rdma@vger.kernel.org, swise@opengridcomputing.com, sagig@mellanox.com, target-devel@vger.kernel.org List-Id: linux-rdma@vger.kernel.org > I think you're right. Do you have any good suggestion how to trigger > iSER first burst data, as apparently my normal testing didn't hit > this? The first burst should happen by default (against LIO which support ImmediateData and UnsolicitedDataOut). But it won't make a difference for the initiator which registers the entire buffer, sends the first burst and let the target read the rest accordingly... Perhaps if you change the iscsi tpg FirstBurstLength to be subpage say 3k (default is 64k) you can get the isert (when using MRs over iwarp) hit this... Steve can you help?