From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A0E4C4740A for ; Mon, 7 Oct 2019 07:13:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 259DE222D0 for ; Mon, 7 Oct 2019 07:13:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="oaiTg5Jf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727028AbfJGHND (ORCPT ); Mon, 7 Oct 2019 03:13:03 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:38238 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726889AbfJGHND (ORCPT ); Mon, 7 Oct 2019 03:13:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=CUxXi74mQTtzR35BL4cV3ysUkx+e3F2IaA4sSCsQ1w0=; b=oaiTg5Jfr2qIin/88nwbfCE7L uhSnvSqzmK92pzaP5TgWj+s9a75vvEh2WTyGFBq4bhJrlnynwHbU6MJDw92N4uvtFA/XTgVZ2sRar +GHtKq29NR4QVhZlPlaj3AY+LXRCiwQhD2DCZmZ2Lda/GPpBclR50eyUgalEWkJQdQ8D8DNQCb87W E0K+B8kAF86E86Fi+znk75LfDnUzoWIsIz6IaSUl3fnnIbwNVdjJ1OdxoCC0HL3dvuls8rhokz8XM budvjyIpXpmxb/cwu6rzcL/8BeL3KKXhtczOgAcpoNgKG27XwdGx4+raO+5PaSaArqKh7QxnGyREn EKTCOsbkA==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHNCY-0003wh-6k; Mon, 07 Oct 2019 07:13:02 +0000 Date: Mon, 7 Oct 2019 00:13:02 -0700 From: Christoph Hellwig To: Leon Romanovsky Cc: Doug Ledford , Jason Gunthorpe , Leon Romanovsky , RDMA mailing list , Or Gerlitz , Yamin Friedman , Saeed Mahameed , linux-netdev Subject: Re: [PATCH rdma-next 2/3] RDMA/mlx5: Add capability for max sge to get optimized performance Message-ID: <20191007071302.GA15034@infradead.org> References: <20191006155955.31445-1-leon@kernel.org> <20191006155955.31445-3-leon@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191006155955.31445-3-leon@kernel.org> User-Agent: Mutt/1.12.1 (2019-06-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Sun, Oct 06, 2019 at 06:59:54PM +0300, Leon Romanovsky wrote: > diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h > index 4f671378dbfc..60fd98a9b7e8 100644 > --- a/include/rdma/ib_verbs.h > +++ b/include/rdma/ib_verbs.h > @@ -445,6 +445,8 @@ struct ib_device_attr { > struct ib_tm_caps tm_caps; > struct ib_cq_caps cq_caps; > u64 max_dm_size; > + /* Max entries for sgl for optimized performance per READ */ > + u32 max_sgl_rd; This either needs to go into what current is patch 3 or an entirely separate one.