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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF468C4167D for ; Tue, 5 Apr 2022 12:42:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1386285AbiDEMkz (ORCPT ); Tue, 5 Apr 2022 08:40:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237947AbiDEJE2 (ORCPT ); Tue, 5 Apr 2022 05:04:28 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BEE0E13F3F; Tue, 5 Apr 2022 01:55:52 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 9EFF5B81C84; Tue, 5 Apr 2022 08:55:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1209CC385A1; Tue, 5 Apr 2022 08:55:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649148949; bh=NSm4cXzaYVKISJmzrhEGmW7kbB0t373onYfKAu8jDTU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0Uzp4a7/k0vHr5O35x8laPFa5lGffvFR1/MJSubY1Nc++ksoeQLjcwEtBFW/9cg2X 8dkjlwXcOTTtThX11nYsbOuRTOxLXDwrnn9DfPvodkhAjMsJ5CAgrra//JqaYYzxX+ D3zXQGK7E/kkQ0QLClPlKZ8ui79tsdN5EufX0ORI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jack Wang , Damien Le Moal , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.16 0538/1017] scsi: pm8001: Fix NCQ NON DATA command completion handling Date: Tue, 5 Apr 2022 09:24:11 +0200 Message-Id: <20220405070410.259833134@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070354.155796697@linuxfoundation.org> References: <20220405070354.155796697@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Damien Le Moal [ Upstream commit 1d6736c3e162061dc811c76e605f35ef3234bffa ] NCQ NON DATA is an NCQ command with the DMA_NONE DMA direction and so a register-device-to-host-FIS response is expected for it. However, for an IO_SUCCESS case, mpi_sata_completion() expects a set-device-bits-FIS for any ata task with an use_ncq field true, which includes NCQ NON DATA commands. Fix this to correctly treat NCQ NON DATA commands as non-data by also testing for the DMA_NONE DMA direction. Link: https://lore.kernel.org/r/20220220031810.738362-16-damien.lemoal@opensource.wdc.com Fixes: dbf9bfe61571 ("[SCSI] pm8001: add SAS/SATA HBA driver") Reviewed-by: Jack Wang Signed-off-by: Damien Le Moal Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/pm8001/pm8001_hwi.c | 3 ++- drivers/scsi/pm8001/pm80xx_hwi.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 183c72547229..97c08afd2dcf 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -2421,7 +2421,8 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb) len = sizeof(struct pio_setup_fis); pm8001_dbg(pm8001_ha, IO, "PIO read len = %d\n", len); - } else if (t->ata_task.use_ncq) { + } else if (t->ata_task.use_ncq && + t->data_dir != DMA_NONE) { len = sizeof(struct set_dev_bits_fis); pm8001_dbg(pm8001_ha, IO, "FPDMA len = %d\n", len); diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 8eef2c51e432..414cd4b67c90 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -2518,7 +2518,8 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, len = sizeof(struct pio_setup_fis); pm8001_dbg(pm8001_ha, IO, "PIO read len = %d\n", len); - } else if (t->ata_task.use_ncq) { + } else if (t->ata_task.use_ncq && + t->data_dir != DMA_NONE) { len = sizeof(struct set_dev_bits_fis); pm8001_dbg(pm8001_ha, IO, "FPDMA len = %d\n", len); -- 2.34.1