From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Wise Subject: Re: [PATCH 2.6.35 2/3] RDMA/cxgb4: Support variable sized work requests. Date: Thu, 10 Jun 2010 14:17:54 -0500 Message-ID: <4C113A62.2050806@opengridcomputing.com> References: <20100610190255.18331.20027.stgit@build.ogc.int> <20100610190300.18331.39028.stgit@build.ogc.int> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Roland Dreier Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org Roland Dreier wrote: > > T4 EQ entries are in multiples of 64B. Currently the RDMA SQ and RQ > > use fixed sized entries composed of 4 EQ entries for the SQ and 2 EQ > > entries for the RQ. For optimial latency with small IO, we need to > > change this so the HW only needs to DMA the EQ entries actually used by > > a given work request. > > This seems not to be a fix, just an optimization -- so at this point for > 2.6.36 I think. Or am I wrong? > You are correct...I was hoping since iw_cxgb4 is new to 2.6.35, we could still get this in. But if you disagree, then 2.6.36... -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html