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=-6.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 0E4E7C432BE for ; Tue, 27 Jul 2021 10:14:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E670061527 for ; Tue, 27 Jul 2021 10:14:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236131AbhG0KOf (ORCPT ); Tue, 27 Jul 2021 06:14:35 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:60320 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236109AbhG0KOd (ORCPT ); Tue, 27 Jul 2021 06:14:33 -0400 Received: from epcas2p2.samsung.com (unknown [182.195.41.54]) by mailout4.samsung.com (KnoxPortal) with ESMTP id 20210727101432epoutp04c48f530df2983eebaf98907ae37308f3~VnkfmwIcB0449904499epoutp04z for ; Tue, 27 Jul 2021 10:14:32 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout4.samsung.com 20210727101432epoutp04c48f530df2983eebaf98907ae37308f3~VnkfmwIcB0449904499epoutp04z DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1627380872; bh=nZ1LCnQEGfjxzpmsjN08zuPFIpxfoOlId6rhiX44kIw=; h=From:To:Cc:In-Reply-To:Subject:Date:References:From; b=km3mQd3wYH2R7ikr2WIZCcLK4PA2ZH+JpGS4LVbpN9i0sm577ebLqdtJt4/YPNd9I H+Fz1LudJJ6TJY7REi6oS8ELX4jGuupZ5udyZGMjXon33U5cARNAZHUPYcUh70SUu/ dJ1AL5VbGK8m54ooxIb/sqe9O35272QS/D5y5qYU= Received: from epsnrtp3.localdomain (unknown [182.195.42.164]) by epcas2p4.samsung.com (KnoxPortal) with ESMTP id 20210727101430epcas2p4aa8950c6b075720f16f5616e6c00d52d~VnkeoTVtH0094800948epcas2p4Q; Tue, 27 Jul 2021 10:14:30 +0000 (GMT) Received: from epsmges2p1.samsung.com (unknown [182.195.40.189]) by epsnrtp3.localdomain (Postfix) with ESMTP id 4GYt1x60WBz4x9Q0; Tue, 27 Jul 2021 10:14:29 +0000 (GMT) Received: from epcas2p2.samsung.com ( [182.195.41.54]) by epsmges2p1.samsung.com (Symantec Messaging Gateway) with SMTP id F5.F3.09921.58CDFF06; Tue, 27 Jul 2021 19:14:29 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas2p3.samsung.com (KnoxPortal) with ESMTPA id 20210727101429epcas2p31b7bdb200636151e5db7581075d6e730~Vnkc6QtGy2125721257epcas2p3N; Tue, 27 Jul 2021 10:14:29 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20210727101429epsmtrp23ff64c19799c9fc76eb51001d0a8672c~Vnkc4cFym1459314593epsmtrp2X; Tue, 27 Jul 2021 10:14:29 +0000 (GMT) X-AuditID: b6c32a45-fb3ff700000026c1-79-60ffdc85aca8 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id ED.58.08394.48CDFF06; Tue, 27 Jul 2021 19:14:28 +0900 (KST) Received: from KORCO039056 (unknown [10.229.8.156]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20210727101428epsmtip17fd4a4ef22105533c8a0130908eba7d4~VnkckeuyL0258102581epsmtip1U; Tue, 27 Jul 2021 10:14:28 +0000 (GMT) From: "Chanho Park" To: "'Bean Huo'" , "'Krzysztof Kozlowski'" , "'Alim Akhtar'" , "'James E . J . Bottomley'" , "'Martin K . Petersen'" Cc: "'Can Guo'" , "'Jaegeuk Kim'" , "'Kiwoong Kim'" , "'Avri Altman'" , "'Adrian Hunter'" , "'Christoph Hellwig'" , "'Bart Van Assche'" , "'jongmin jeong'" , "'Gyunghoon Kwon'" , , In-Reply-To: <602ee8bc56891f0f0429afe274d7174ec325172e.camel@gmail.com> Subject: RE: [PATCH v2 14/15] scsi: ufs: ufs-exynos: multi-host configuration for exynosauto Date: Tue, 27 Jul 2021 19:14:28 +0900 Message-ID: <004601d782d0$2f43cd20$8dcb6760$@samsung.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQJIF3zu3g+/Awptn47LJA2vs45sGwKSU/P/Ail7aZYBcufzmAMJoF0fATgHUheqIduGwA== Content-Language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrPJsWRmVeSWpSXmKPExsWy7bCmmW7rnf8JBqte6VqcfLKGzeLBvG1s Fi9/XmWzmPbhJ7PFp/XLWC16djpbnJ6wiMliztkGJosn62cxWyy6sY3JYuU1C4vz5zewW9zc cpTFYsb5fUwW3dd3sFksP/6PyUHA4/IVb4/Lfb1MHjtn3WX32LxCy2PxnpdMHptWdbJ5TFh0 gNHj49NbLB59W1YxenzeJOfRfqCbKYA7KscmIzUxJbVIITUvOT8lMy/dVsk7ON453tTMwFDX 0NLCXEkhLzE31VbJxSdA1y0zB+gbJYWyxJxSoFBAYnGxkr6dTVF+aUmqQkZ+cYmtUmpBSk6B oWGBXnFibnFpXrpecn6ulaGBgZEpUGVCTsbExQvYC7awVpzddpilgbGHpYuRk0NCwETi5r7r 7F2MXBxCAjsYJfb1tzKBJIQEPjFKPHvjCZH4xiix6uBsJpiOH5+a2CASexklnixuZIVwXjBK LF3eywZSxSagL/GyYxsriC0CkuhfLApSxCxwglli4a8pzCAJTgF3ianLJoMdIiwQJ3F5+TZG EJtFQFVi2cU1QDUcHLwClhLTTqWBhHkFBCVOznwCVs4soC2xbOFrZoiLFCR+Pl0GtStMouHX GyaIGhGJ2Z1tzCB7JQSaOSXuHV0C9bSLxIRte6GahSVeHd/CDmFLSXx+t5cNoqGbUaL10X+o xGpGic5GHwjbXuLX9C2sIMcxC2hKrN+lD2JKCChLHLkFdRufRMfhv+wQYV6JjjYhiEZ1iQPb p0NdICvRPecz6wRGpVlIPpuF5LNZSD6YhbBrASPLKkax1ILi3PTUYqMCQ+TI3sQITularjsY J7/9oHeIkYmD8RCjBAezkgivw4rfCUK8KYmVValF+fFFpTmpxYcYTYFBPZFZSjQ5H5hV8kri DU2NzMwMLE0tTM2MLJTEeTXiviYICaQnlqRmp6YWpBbB9DFxcEo1MPGruaQ69M352HXo6Kf3 fCx8ytdnOC2YISe6Zk1msbfzHKWL91yrM6cpbb50t8ie9yzn+zj/ZgXvixxerfxykjZpi39O 3LO4546VWX6iTvFevU9X2++uUEtbHBKg+Ftw4U/+JVv2/ouS8/NS1XC1St01nZV7Z7ZO5hmp 9U+3bOx+kTlDpWLH1VeGYsKh/U6OT7Zndufz2m/cfGFpkmlYfMfp/49f6Bmd4A09H7v7wdpe 7/WeKlUZ5yYGM3Zt5L63WcXyx4E2ngs3pZa+f+Q2z35feWBr2eST0ZU/l/7+rJvHt/n8h1ee i+3Kuq4kJCa6zmCvE8qcueL53o2JP08oHRXLlj78W3m/ufffufH+t5VYijMSDbWYi4oTAW6y +bpyBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrNIsWRmVeSWpSXmKPExsWy7bCSnG7Lnf8JBt9azC1OPlnDZvFg3jY2 i5c/r7JZTPvwk9ni0/plrBY9O50tTk9YxGQx52wDk8WT9bOYLRbd2MZksfKahcX58xvYLW5u OcpiMeP8PiaL7us72CyWH//H5CDgcfmKt8flvl4mj52z7rJ7bF6h5bF4z0smj02rOtk8Jiw6 wOjx8ektFo++LasYPT5vkvNoP9DNFMAdxWWTkpqTWZZapG+XwJWxYPY7toI5rBWNG88xNTB+ Ye5i5OSQEDCR+PGpiQ3EFhLYzSgx54cuRFxW4tm7HewQtrDE/ZYjrF2MXEA1zxglZj5aC9bA JqAv8bJjG1hCROAVo8SJq+1sIA6zwAVmiev/f7JBtLxikvi16BsjSAungLvE1GWTWUBsYYEY iWMbNoDFWQRUJZZdXAN0EwcHr4ClxLRTaSBhXgFBiZMzn4CVMwtoS/Q+bGWEsZctfA31goLE z6fLWEFsEYEwiYZfb5ggakQkZne2MU9gFJ6FZNQsJKNmIRk1C0nLAkaWVYySqQXFuem5xYYF hnmp5XrFibnFpXnpesn5uZsYwfGtpbmDcfuqD3qHGJk4GA8xSnAwK4nwOqz4nSDEm5JYWZVa lB9fVJqTWnyIUZqDRUmc90LXyXghgfTEktTs1NSC1CKYLBMHp1QD07Wu9Am+ZeESxrs7eNUO G7AbHlza7HD51pvzzhVfKhuOnPEzS/n5yHb1/NIvB6IEmz6GnsqVMZncaLNhmfZy9/cN0+1X +29W7764V/HjUrfqrqe80RM/y0qUBedPuCDNXz3j3MoXJr7MXzfoHPX8mB/0+M79zHlH40Uu 9HV7uq+5FWYdeL/zU+a0Fesz8kqu7taVLRHPWpXYsjp9Z1F93ENelZorq2fqBvJxuDbNemD7 cDdTSND8/YUyxu3vTzSaMboIxL6K46vr2mgx5c+92s+SNalfsm023Vkn85lbWenV0YWOTp5/ jFc1am+6E/OYXy+40FPuwW5hW902vh974yrkN259L5v8XTZtwTIXJZbijERDLeai4kQAHyIs F14DAAA= X-CMS-MailID: 20210727101429epcas2p31b7bdb200636151e5db7581075d6e730 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210714071200epcas2p3f76e68f6bbb4755574dba2055a8130ab References: <20210714071131.101204-1-chanho61.park@samsung.com> <20210714071131.101204-15-chanho61.park@samsung.com> <2b4f4e6d76cdc517843fe8880312541c754d5352.camel@gmail.com> <000601d7820a$9aa11210$cfe33630$@samsung.com> <602ee8bc56891f0f0429afe274d7174ec325172e.camel@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org > > A PH has its own doorbell register and each VHs also has it as well. > > > > The TASK_TAG=5B7:5=5D can be used to distinguish the origin of the > > request among VHs and remaining TASK_TAG=5B4:0=5D will be used for > > supporting 32 tags. > > > > > > > > Best Regards, > > > > Chanho Park >=20 > Thanks for your reply. >=20 > so you split the =22Task Tag=22 filed byte3 in the UPIU header to two > parts, bit7=7Ebit5 is for the VHs ID, and bit4=7Ebit0 is for the task ID. > but this is not defined in the Spec 2.1. correct? >=20 You're right. For PH, TASK_TAG=5B7:5=5D will be set to =220=22 but a VHID will be used in= case of VH. Best Regards, Chanho Park