From patchwork Wed Nov 27 18:13:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cathy Avery X-Patchwork-Id: 845900 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8B14C1FBEBE for ; Wed, 27 Nov 2024 18:13:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732731218; cv=none; b=WTVWnKIkCBxfj1f9l6Nvf2oxDEUFQC5bSBKWBbK5uFhoK8vz0ZPWbjdgN61k0jEb2cARV1aC2tadjPBF5y+Ja0IPN9RjxmjZtwyRERAWGiloRkBXyKRG9sVpfry+TWpW9/8seRt0HtoCdOb3OesLsWrzjzKEjJ724Gr0IiklVyM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732731218; c=relaxed/simple; bh=uCK/oSvqKJse6UZiS4QNw7GTSY59CPZ6FRheoY3Jwjg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=h4BXTYpiQi2h8nhZI3M4nyCLmTvrB8IJ12jclKcWrFJ3KZj15sqnfuoGaD10ipj+EZ9QPBQ4NXTtJbpCcvVpVD5tYtmk3tm/auPN65WnBHlG9KsuewLoL8rXp88knDlekieptLfaUKA4RcZb/YJSfbcNFVQ1QH5NXS9L4IMhaqs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=FKGIP4WY; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="FKGIP4WY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1732731215; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=bBLKMV5jpNDuJoQl4/1hOw5nZa8O963JZs4hwXdVXR4=; b=FKGIP4WYWf2BqL3Sb+6B1zxI7w54xZxjl187rtw8oRSYQlRbCAXt2yidgHplOEJNP6LnE+ 0xSCFi0kHXvEoRiYV74nq629hPqr0LG3dne2+PzF+i2Wt4tmuVe2KoZ6zmWAiRr90qQkyq X/El9OSTTOXjvu1NElqZzRIRb5qD42M= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-374-NRDJlUbdOtKuuTsUwaJxTg-1; Wed, 27 Nov 2024 13:13:32 -0500 X-MC-Unique: NRDJlUbdOtKuuTsUwaJxTg-1 X-Mimecast-MFC-AGG-ID: NRDJlUbdOtKuuTsUwaJxTg Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 4020D1956064; Wed, 27 Nov 2024 18:13:27 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.22.80.211]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id D0435195E480; Wed, 27 Nov 2024 18:13:24 +0000 (UTC) From: Cathy Avery To: kys@microsoft.com, martin.petersen@oracle.com, wei.liu@kernel.org, haiyangz@microsoft.com, decui@microsoft.com, jejb@linux.ibm.com, mhklinux@outlook.com, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org Cc: bhull@redhat.com, emilne@redhat.com, loberman@redhat.com, vkuznets@redhat.com Subject: [PATCH v2] scsi: storvsc: Do not flag MAINTENANCE_IN return of SRB_STATUS_DATA_OVERRUN as an error Date: Wed, 27 Nov 2024 13:13:24 -0500 Message-ID: <20241127181324.3318443-1-cavery@redhat.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 This patch partially reverts commit 812fe6420a6e789db68f18cdb25c5c89f4561334 Author: Michael Kelley Date: Fri Aug 25 10:21:24 2023 -0700 scsi: storvsc: Handle additional SRB status values HyperV does not support MAINTENANCE_IN resulting in FC passthrough returning the SRB_STATUS_DATA_OVERRUN value. Now that SRB_STATUS_DATA_OVERRUN is treated as an error multipath ALUA paths go into a faulty state as multipath ALUA submits RTPG commands via MAINTENANCE_IN. [ 3.215560] hv_storvsc 1d69d403-9692-4460-89f9-a8cbcc0f94f3: tag#230 cmd 0xa3 status: scsi 0x0 srb 0x12 hv 0xc0000001 [ 3.215572] scsi 1:0:0:32: alua: rtpg failed, result 458752 MAINTENANCE_IN now returns success to avoid the error path as is currently done with INQUIRY and MODE_SENSE. Suggested-by: Michael Kelley Signed-off-by: Cathy Avery Reviewed-by: Michael Kelley --- Changes since v1: - Handle error and logging by returning success as previously done with INQUIRY and MODE_SENSE [Michael Kelley]. --- drivers/scsi/storvsc_drv.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 7ceb982040a5..d0b55c1fa908 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -149,6 +149,8 @@ struct hv_fc_wwn_packet { */ static int vmstor_proto_version; +static bool hv_dev_is_fc(struct hv_device *hv_dev); + #define STORVSC_LOGGING_NONE 0 #define STORVSC_LOGGING_ERROR 1 #define STORVSC_LOGGING_WARN 2 @@ -1138,6 +1140,7 @@ static void storvsc_on_io_completion(struct storvsc_device *stor_device, * not correctly handle: * INQUIRY command with page code parameter set to 0x80 * MODE_SENSE command with cmd[2] == 0x1c + * MAINTENANCE_IN is not supported by HyperV FC passthrough * * Setup srb and scsi status so this won't be fatal. * We do this so we can distinguish truly fatal failues @@ -1145,7 +1148,9 @@ static void storvsc_on_io_completion(struct storvsc_device *stor_device, */ if ((stor_pkt->vm_srb.cdb[0] == INQUIRY) || - (stor_pkt->vm_srb.cdb[0] == MODE_SENSE)) { + (stor_pkt->vm_srb.cdb[0] == MODE_SENSE) || + (stor_pkt->vm_srb.cdb[0] == MAINTENANCE_IN && + hv_dev_is_fc(device))) { vstor_packet->vm_srb.scsi_status = 0; vstor_packet->vm_srb.srb_status = SRB_STATUS_SUCCESS; }