Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752113AbbKVNX5 (ORCPT ); Sun, 22 Nov 2015 08:23:57 -0500 Received: from verein.lst.de ([213.95.11.211]:47348 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751505AbbKVNXz (ORCPT ); Sun, 22 Nov 2015 08:23:55 -0500 Date: Sun, 22 Nov 2015 14:23:52 +0100 From: Christoph Hellwig To: Sagi Grimberg Cc: Christoph Hellwig , Bart Van Assche , "linux-rdma@vger.kernel.org" , "axboe@fb.com" , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 2/9] IB: add a proper completion queue abstraction Message-ID: <20151122132352.GA14154@lst.de> References: <1447422410-20891-1-git-send-email-hch@lst.de> <1447422410-20891-3-git-send-email-hch@lst.de> <564B697A.2020601@sandisk.com> <564C2F01.6020407@dev.mellanox.co.il> <564CC15E.7030602@sandisk.com> <20151120101644.GC24298@lst.de> <564F4F38.9040505@sandisk.com> <56519011.6060204@dev.mellanox.co.il> <20151122101308.GA12189@lst.de> <56519A90.5010502@dev.mellanox.co.il> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56519A90.5010502@dev.mellanox.co.il> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 799 Lines: 17 On Sun, Nov 22, 2015 at 12:36:00PM +0200, Sagi Grimberg wrote: > >> Wouldn't it be a better idea to set the WQ_SYSFS interface and use >> the standard sysfs interface for specifying cpumasks or node affinity? > > I think that bart wants to allow the caller to select cpu affinity > per CQ. In this case ib_alloc_cq in workqueue mode would need to > accept a affinity_hint from the caller (default to wild-card > WORK_CPU_UNBOUND). Hmm, true. How would be set that hint from userspace? I'd really prefer to see a practical justification for it first. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/