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=-4.6 required=3.0 tests=BAYES_00, BODY_QUOTE_MALF_MSGID,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_SANE_2 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 4321BC433E5 for ; Wed, 22 Jul 2020 09:19:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2052020849 for ; Wed, 22 Jul 2020 09:19:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="F8TvUub3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731327AbgGVJTB (ORCPT ); Wed, 22 Jul 2020 05:19:01 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:10770 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726153AbgGVJTB (ORCPT ); Wed, 22 Jul 2020 05:19:01 -0400 X-UUID: 9922f839a53142569b16b70e9c5ff42c-20200722 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=6BSWLjcQJzdicOh0iBZ0z0jDe5KmBxrTiIAJXKTT0yY=; b=F8TvUub3E4fv4ZsqsRwVO/j7J3BkfuRadQnfsWNmvzq3nCePYpCuTi5NWj2PHR4uhYXEmwINOWsp6/dlC5cuSryIpvRJvbqFrd95lrzfCGoBgfXUU+4LvVoDez2CJ/SDk42WveH8LRDfo9fASRW+cbOoKrXP34DvkfHNJdXFJXs=; X-UUID: 9922f839a53142569b16b70e9c5ff42c-20200722 Received: from mtkcas06.mediatek.inc [(172.21.101.30)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1504375447; Wed, 22 Jul 2020 17:18:56 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 22 Jul 2020 17:18:53 +0800 Received: from [172.21.77.33] (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 22 Jul 2020 17:18:54 +0800 Message-ID: <1595409534.27178.19.camel@mtkswgap22> Subject: Re: [RFC PATCH v3] scsi: ufs: Quiesce all scsi devices before shutdown From: Stanley Chu To: Bart Van Assche CC: , , , , , , , , , , , , , , , , , Date: Wed, 22 Jul 2020 17:18:54 +0800 In-Reply-To: <2465978d-28d3-e30f-248e-87333c789743@acm.org> References: <20200706132218.21171-1-stanley.chu@mediatek.com> <2465978d-28d3-e30f-248e-87333c789743@acm.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-TM-SNTS-SMTP: 1AEDC1CB880B4B35E07F8D0ADB4D38C01629038D20821CCF56DBF8140A0C9EA52000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org SGkgQmFydCwNCg0KT24gU2F0LCAyMDIwLTA3LTExIGF0IDIwOjIxIC0wNzAwLCBCYXJ0IFZhbiBB c3NjaGUgd3JvdGU6DQo+IE9uIDIwMjAtMDctMDYgMDY6MjIsIFN0YW5sZXkgQ2h1IHdyb3RlOg0K PiA+ICtzdGF0aWMgdm9pZCB1ZnNoY2RfY2xlYW51cF9xdWV1ZShzdHJ1Y3Qgc2NzaV9kZXZpY2Ug KnNkZXYsIHZvaWQgKmRhdGEpDQo+ID4gK3sNCj4gPiArCWlmIChzZGV2LT5yZXF1ZXN0X3F1ZXVl KQ0KPiA+ICsJCWJsa19jbGVhbnVwX3F1ZXVlKHNkZXYtPnJlcXVlc3RfcXVldWUpOw0KPiA+ICt9 DQo+IA0KPiBObyBTQ1NJIExMRCBzaG91bGQgZXZlciBjYWxsIGJsa19jbGVhbnVwX3F1ZXVlKCkg ZGlyZWN0bHkgZm9yDQo+IHNkZXYtPnJlcXVlc3RfcXVldWUuIE9ubHkgdGhlIFNDU0kgY29yZSBz aG91bGQgY2FsbCBibGtfY2xlYW51cF9xdWV1ZSgpDQo+IGRpcmVjdGx5IGZvciB0aGF0IHF1ZXVl Lg0KDQpHb3QgaXQuDQoNClNvIG1heSBJIGZvY3VzIG9uIGZpeGluZyByYWNpbmcgZmlyc3QgYnkg cXVpZWNzaW5nIGFsbCBTQ1NJIGRldmljZXMgb25seQ0KYW5kIGRvIG5vdCB0b3VjaCBibGtfY2xl YW51cF9xdWV1ZSgpIGluIFVGUyBkcml2ZXIsIGp1c3QgbGlrZSB2Mj8NCg0KDQo+ID4gIGludCB1 ZnNoY2Rfc2h1dGRvd24oc3RydWN0IHVmc19oYmEgKmhiYSkNCj4gPiAgew0KPiA+ICAJaW50IHJl dCA9IDA7DQo+ID4gKwlzdHJ1Y3Qgc2NzaV90YXJnZXQgKnN0YXJnZXQ7DQo+ID4gIA0KPiA+ICAJ aWYgKCFoYmEtPmlzX3Bvd2VyZWQpDQo+ID4gIAkJZ290byBvdXQ7DQo+ID4gQEAgLTg2MTIsNyAr ODYzMiwyNSBAQCBpbnQgdWZzaGNkX3NodXRkb3duKHN0cnVjdCB1ZnNfaGJhICpoYmEpDQo+ID4g IAkJCWdvdG8gb3V0Ow0KPiA+ICAJfQ0KPiA+ICANCj4gPiArCS8qDQo+ID4gKwkgKiBRdWllc2Nl IGFsbCBTQ1NJIGRldmljZXMgdG8gcHJldmVudCBhbnkgbm9uLVBNIHJlcXVlc3RzIHNlbmRpbmcN Cj4gPiArCSAqIGZyb20gYmxvY2sgbGF5ZXIgZHVyaW5nIGFuZCBhZnRlciBzaHV0ZG93bi4NCj4g PiArCSAqDQo+ID4gKwkgKiBIZXJlIHdlIGNhbiBub3QgdXNlIGJsa19jbGVhbnVwX3F1ZXVlKCkg c2luY2UgUE0gcmVxdWVzdHMNCj4gPiArCSAqICh3aXRoIEJMS19NUV9SRVFfUFJFRU1QVCBmbGFn KSBhcmUgc3RpbGwgcmVxdWlyZWQgdG8gYmUgc2VudA0KPiA+ICsJICogdGhyb3VnaCBibG9jayBs YXllci4gVGhlcmVmb3JlIFNDU0kgY29tbWFuZCBxdWV1ZWQgYWZ0ZXIgdGhlDQo+ID4gKwkgKiBz Y3NpX3RhcmdldF9xdWllc2NlKCkgY2FsbCByZXR1cm5lZCB3aWxsIGJsb2NrIHVudGlsDQo+ID4g KwkgKiBibGtfY2xlYW51cF9xdWV1ZSgpIGlzIGNhbGxlZC4NCj4gPiArCSAqDQo+ID4gKwkgKiBC ZXNpZGVzLCBzY3NpX3RhcmdldF8idW4icXVpZXNjZSAoZS5nLiwgc2NzaV90YXJnZXRfcmVzdW1l KSBjYW4NCj4gPiArCSAqIGJlIGlnbm9yZWQgc2luY2Ugc2h1dGRvd24gaXMgb25lLXdheSBmbG93 Lg0KPiA+ICsJICovDQo+ID4gKwl1ZnNoY2Rfc2NzaV9mb3JfZWFjaF9zZGV2KHVmc2hjZF9xdWll Y2Vfc2Rldik7DQo+ID4gKw0KPiA+ICAJcmV0ID0gdWZzaGNkX3N1c3BlbmQoaGJhLCBVRlNfU0hV VERPV05fUE0pOw0KPiA+ICsNCj4gPiArCS8qIFNldCBxdWV1ZSBhcyBkeWluZyB0byBub3QgYmxv Y2sgcXVldWVpbmcgY29tbWFuZHMgKi8NCj4gPiArCXVmc2hjZF9zY3NpX2Zvcl9lYWNoX3NkZXYo dWZzaGNkX2NsZWFudXBfcXVldWUpOw0KPiA+ICBvdXQ6DQo+ID4gIAlpZiAocmV0KQ0KPiA+ICAJ CWRldl9lcnIoaGJhLT5kZXYsICIlcyBmYWlsZWQsIGVyciAlZFxuIiwgX19mdW5jX18sIHJldCk7 DQo+ID4gDQo+IA0KPiBXaGF0IGlzIHRoZSBwdXJwb3NlIG9mIHVmc2hjZF9zaHV0ZG93bigpPyBX aHkgZG9lcyB0aGlzIGZ1bmN0aW9uIGV4aXN0Pw0KPiBIb3cgYWJvdXQgcmVtb3ZpbmcgdGhlIGNh bGxzIHRvIHVmc2hjZF9zaHV0ZG93bigpIGFuZCBpbnZva2luZyBwb3dlciBkb3duDQo+IGNvZGUg ZnJvbSBpbnNpZGUgc2Rfc3VzcGVuZF9jb21tb24oKSBpbnN0ZWFkPw0KDQp1ZnNoY2Rfc2h1dGRv d24oKSBjb25maWd1cmVzIGJlbG93IHRoaW5ncyBkaWZmZXJlbnQgZnJvbSBvciBtb3JlIHRoYW4N CndoYXQgc2Rfc3VzcGVuZF9jb21tb24oKSBjYW4gZG8gbm93LA0KDQotIFNldCBsaW5rIGFzIE9G RiBzdGF0ZQ0KLSBSZWd1bGF0b3IgYW5kIGNsb2NrIHRvZ2dsaW5nIGFjY29yZGluZyB0byByZXF1 aXJlZCBsb3ctcG93ZXIgc3RhdGUgZm9yDQpzaHV0ZG93bg0KLSBBdXRvIEJLT1AgdG9nZ2xpbmcN Ci0gVmVuZG9yLXNwZWNpZmljIHNodXRkb3duIGZsb3cgLi4uZXRjLg0KDQpUaGVyZWZvcmUgVUZT IHNodXRkb3duIGNhbGxiYWNrIHdvdWxkIGJlIHN0aWxsIHJlcXVpcmVkLg0KDQpUaGFua3MsDQpT dGFubGV5IENodQ0KDQo=