From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org by pdx-caf-mail.web.codeaurora.org (Dovecot) with LMTP id NVwBBy76HVv0OgAAmS7hNA ; Mon, 11 Jun 2018 04:34:33 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id B0D5760792; Mon, 11 Jun 2018 04:34:33 +0000 (UTC) Authentication-Results: smtp.codeaurora.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="W770NeD6" X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,T_DKIMWL_WL_HIGH autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by smtp.codeaurora.org (Postfix) with ESMTP id 365EC601D2; Mon, 11 Jun 2018 04:34:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 365EC601D2 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932311AbeFKEea (ORCPT + 21 others); Mon, 11 Jun 2018 00:34:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:35480 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753736AbeFKEe3 (ORCPT ); Mon, 11 Jun 2018 00:34:29 -0400 Received: from localhost (unknown [5.29.173.205]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6C1202087E; Mon, 11 Jun 2018 04:34:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1528691668; bh=c7B3k/s09DDBUC3zbvKJqiVeHAG7jK6poExxvAei3hc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=W770NeD6TFOl2Bdn5SQful9SGwNC80Hjg+45muzw1u8M8r1AJC1gvs5TmtEgbwF+I euxg4zb2bwn4IqZUG7Ak9QC+Di5AS15DnOmotKpvqxP15tisbe1VqDf+U6NWHHoFUm qlVpE/YhSSORPT2/LDR3hv+/v6tubUQ98HHOCaTc= Date: Mon, 11 Jun 2018 07:34:25 +0300 From: Leon Romanovsky To: Jason Gunthorpe Cc: Matthew Wilcox , hans.westgaard.ry@oracle.com, Doug Ledford , Matthew Wilcox , linux-rdma@vger.kernel.org, =?iso-8859-1?Q?H=E5kon?= Bugge , Parav Pandit , Jack Morgenstein , Pravin Shedge , linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] IB/mad: Use IDR for agent IDs Message-ID: <20180611043425.GA21382@mtr-leonro.mtl.com> References: <20180608174218.32455-1-willy@infradead.org> <20180608174218.32455-3-willy@infradead.org> <20180610063028.GH12407@mtr-leonro.mtl.com> <20180610104305.GA9284@bombadil.infradead.org> <20180610122505.GM12407@mtr-leonro.mtl.com> <20180610203027.GF5560@mellanox.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="uAKRQypu60I7Lcqm" Content-Disposition: inline In-Reply-To: <20180610203027.GF5560@mellanox.com> User-Agent: Mutt/1.9.5 (2018-04-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --uAKRQypu60I7Lcqm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sun, Jun 10, 2018 at 02:30:27PM -0600, Jason Gunthorpe wrote: > On Sun, Jun 10, 2018 at 03:25:05PM +0300, Leon Romanovsky wrote: > > On Sun, Jun 10, 2018 at 03:43:05AM -0700, Matthew Wilcox wrote: > > > On Sun, Jun 10, 2018 at 09:30:28AM +0300, Leon Romanovsky wrote: > > > > 1. IBTA spec doesn't talk at all about the size of TransactionID, more > > > > on that in section "13.4.6.4 TRANSACTION ID USAGE", the specification > > > > says: "The contents of the TransactionID (TID) field are implementation- > > > > dependent. So let's don't call it mlx4 bug. > > > > > > I was loosely paraphrasing the original bug report; suggested rewording > > > of the comments gratefully accepted. > > > > Just replace "mlx4 bug" with something like "to comply with mlx4 > > implementation". > > Well, it is a bug. Blindly replacing the upper 8 bits of the TID in a > driver without accommodation from the core is totally, bonkers wrong. I provided cite from spec that says that TID can be whatever you want as long as you success to do it unique. > > The original concept was that the 1<<24 limit would come from the > driver and only mlx4 would have less than 1<<32, because only mlx4 > does this thing.. > > Thanks Matt, > Jason > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html --uAKRQypu60I7Lcqm Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAEBAgAGBQJbHfvRAAoJEORje4g2clink8EQAMv8h8rJtH/TZ5k8S1PM3SR7 SY1qRYNfEmigAWjwP2PwJu6Um314Azrap93axOdAIVkPFfErfQdbg3vAAVq+RN3n FgshwxAzoqUAlfDWN0O///rNFg2f4t2ynrzuw4v43JowjwaUq3MPJzt/4EiZx4SN nGiTUmtAa+aHcxTLo7/j55+ACRF1CfcADGDeDJ7F5LI6FBqqztduqtydpbS5QxgP eraDcrpm2NP1fNlflnY+Xc05tAUJGKOWc0f9qrM6/evA6o6zmVMN5pnmTgyS8diG yo8HuKzjDnCGEAAuS8kapS7zJMvshMsgHZWqeh7wvjkot9736RfdnCrbsnp31/aO E3mSPtMW5AkKrLD+ZOOd0Qk2YE0oO6HirRHwYmdI0108V4pon9V18gIn7NmWa/AB MfCwz5CjL1K7dE0/FNso/GIMSN3VPc3k654P3IH9ZbZZIPv7yLOhwvMiqu0NPC2Z /SMzInu+FXdAZy8Kf0p+fc6FTjGStUpBasuPJj8lsLfIW14hA0sMWFT37boS9OCt ipWvsqtmd7TcXoHb5Mgk68jmZ6tZ+m2+oSNsh2bqum1AxCOFNVOPisQFNRvMJ42I rPNBiDHH9six4p6X5k7wxP79dTPA9EoAzsmtVIllRV+D2WP1ejdM99QOVVtgIxKu WMCaFGuhsHjoiQ8CRZUR =l0ox -----END PGP SIGNATURE----- --uAKRQypu60I7Lcqm--