From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland Dreier Subject: Re: [PATCH 2.6.35 2/3] RDMA/cxgb4: Support variable sized work requests. Date: Thu, 10 Jun 2010 12:12:37 -0700 Message-ID: References: <20100610190255.18331.20027.stgit@build.ogc.int> <20100610190300.18331.39028.stgit@build.ogc.int> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <20100610190300.18331.39028.stgit-T4OLL4TyM9aNDNWfRnPdfg@public.gmane.org> (Steve Wise's message of "Thu, 10 Jun 2010 14:03:00 -0500") Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Steve Wise Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org > 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? -- Roland Dreier || For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/index.html -- 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