From patchwork Tue Jan 26 22:03:33 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Chiang X-Patchwork-Id: 75246 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.2) with ESMTP id o0QM3h4S024507 for ; Tue, 26 Jan 2010 22:03:43 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754733Ab0AZWDf (ORCPT ); Tue, 26 Jan 2010 17:03:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754901Ab0AZWDf (ORCPT ); Tue, 26 Jan 2010 17:03:35 -0500 Received: from g1t0027.austin.hp.com ([15.216.28.34]:12942 "EHLO g1t0027.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754733Ab0AZWDe (ORCPT ); Tue, 26 Jan 2010 17:03:34 -0500 Received: from g1t0039.austin.hp.com (g1t0039.austin.hp.com [16.236.32.45]) by g1t0027.austin.hp.com (Postfix) with ESMTP id AFBC3385A3; Tue, 26 Jan 2010 22:03:33 +0000 (UTC) Received: from ldl (ldl.fc.hp.com [15.11.146.30]) by g1t0039.austin.hp.com (Postfix) with ESMTP id 8393E340B9; Tue, 26 Jan 2010 22:03:33 +0000 (UTC) Received: from localhost (ldl.fc.hp.com [127.0.0.1]) by ldl (Postfix) with ESMTP id 63855CF000F; Tue, 26 Jan 2010 15:03:33 -0700 (MST) Received: from ldl ([127.0.0.1]) by localhost (ldl.fc.hp.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Dp9ny1ZyzvG3; Tue, 26 Jan 2010 15:03:33 -0700 (MST) Received: by ldl (Postfix, from userid 17609) id 4EB78CF000C; Tue, 26 Jan 2010 15:03:33 -0700 (MST) Date: Tue, 26 Jan 2010 15:03:33 -0700 From: Alex Chiang To: Roland Dreier Cc: linux-rdma@vger.kernel.org, justin.chen@hp.com, linux-kernel@vger.kernel.org Subject: Re: infiniband limit of 32 cards per system? Message-ID: <20100126220333.GB12035@ldl.fc.hp.com> References: <20100125235013.GD2828@grease.ALLEYCAT> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uve index 5f284ff..b9aa2b8 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -57,8 +57,8 @@ MODULE_LICENSE("Dual BSD/GPL"); enum { IB_UVERBS_MAJOR = 231, - IB_UVERBS_BASE_MINOR = 192, - IB_UVERBS_MAX_DEVICES = 32 + IB_UVERBS_BASE_MINOR = 128, + IB_UVERBS_MAX_DEVICES = 64 }; #define IB_UVERBS_BASE_DEV MKDEV(IB_UVERBS_MAJOR, IB_UVERBS_BASE_MINOR)