From patchwork Tue Feb 1 21:48:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Don Brace X-Patchwork-Id: 12732347 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7DBBFC433F5 for ; Tue, 1 Feb 2022 21:48:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236156AbiBAVsJ (ORCPT ); Tue, 1 Feb 2022 16:48:09 -0500 Received: from esa.microchip.iphmx.com ([68.232.153.233]:39807 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236013AbiBAVsI (ORCPT ); Tue, 1 Feb 2022 16:48:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1643752088; x=1675288088; h=subject:from:to:cc:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=DJ3T2ggtpSoCill2TfLc2bOreHs/JxdSczSCFxUAlWI=; b=ACI0hcvtBC2QtuTM7by+uQQ+JCuP7GgAPzjmcz/bV3zUoQB040uFb83C hMmyjnKMLrPjRlylg5cZiGWHmzTYFX2rckLgaHVsabGR2f/qQUOPhA+3R ElbuSFwpro40AjaN4+KauOVJDEtN4k0AQAOc/RtNC3BdhLavBEuW8W3OK CXwJG3fhJ4QaVmV1u6NigOb/Fh5ddmyW5E2cgI0+2DJsB3OEs59m0pjBW CconQ14HZuzpHnv7BM5Q7qfPvhtaSZywc0TvgBLxpF/UdRNEF8sImvOlE LzK/vSYETo9iAdKJvUqQoWkSEj62cnOWYULM0F7bVsIZwRNzm3VXoKOpC g==; IronPort-SDR: AP4jPGN/5xfBq8iFnYJc3iNS2A1krDFNq9iekpQwnHEAfy+pLie/zDk0rz7ePPQcEDr8kn1VWE 9LLp9RJQXsDBeruz/jDbCAtCpZm849Wps+LUDOnOTeOUcoHNtMwLohLqwL7fjFodc/Oncibvq0 03dDtXHzJtrmshNhSOp1iHaGsPToRuIdtnlsf0Msxtkg9dYTxJye30kclqnQjD8xHiXJYnenbU eh8QnHoz+PloZ1Ss6JjrRjFKs8922/nzbfIO7FF0mefkgd/yg2sGyl0Fr01YsS6ovIrdhQr39F VHlr+oF61/EONkh9oknaI/mG X-IronPort-AV: E=Sophos;i="5.88,335,1635231600"; d="scan'208";a="160764656" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 01 Feb 2022 14:48:08 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Tue, 1 Feb 2022 14:48:08 -0700 Received: from brunhilda.pdev.net (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Tue, 1 Feb 2022 14:48:08 -0700 Received: from brunhilda.pdev.net (localhost [127.0.0.1]) by brunhilda.pdev.net (Postfix) with ESMTP id 1FC7C70236E; Tue, 1 Feb 2022 15:48:08 -0600 (CST) Subject: [PATCH 04/18] smartpqi: eliminate drive spin down on warm boot From: Don Brace To: , , , , , , , , , , , CC: Date: Tue, 1 Feb 2022 15:48:08 -0600 Message-ID: <164375208810.440833.11254644025650871435.stgit@brunhilda.pdev.net> In-Reply-To: <164375113574.440833.13174600317115819605.stgit@brunhilda.pdev.net> References: <164375113574.440833.13174600317115819605.stgit@brunhilda.pdev.net> User-Agent: StGit/1.4.dev36+g39bf3b02665a MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Sagar Biradar Avoid drive spin down during a warm boot on Linux. Call the BMIC Flush Cache command (0xc2) to indicate the reason for the flush cache (shutdown, hibernate, suspend, or restart). Reviewed-by: Mike McGowen Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Signed-off-by: Sagar Biradar Signed-off-by: Don Brace --- drivers/scsi/smartpqi/smartpqi_init.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index ad9fa1628a69..f51605cd098c 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -8902,6 +8902,7 @@ static void pqi_shutdown(struct pci_dev *pci_dev) { int rc; struct pqi_ctrl_info *ctrl_info; + enum bmic_flush_cache_shutdown_event shutdown_event; ctrl_info = pci_get_drvdata(pci_dev); if (!ctrl_info) { @@ -8917,11 +8918,16 @@ static void pqi_shutdown(struct pci_dev *pci_dev) pqi_ctrl_block_requests(ctrl_info); pqi_ctrl_wait_until_quiesced(ctrl_info); + if (system_state == SYSTEM_RESTART) + shutdown_event = RESTART; + else + shutdown_event = SHUTDOWN; + /* * Write all data in the controller's battery-backed cache to * storage. */ - rc = pqi_flush_cache(ctrl_info, SHUTDOWN); + rc = pqi_flush_cache(ctrl_info, shutdown_event); if (rc) dev_err(&pci_dev->dev, "unable to flush controller cache\n");