From patchwork Thu Jul 16 08:23:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Morel X-Patchwork-Id: 11666869 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8B35C138C for ; Thu, 16 Jul 2020 08:23:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6F2E620775 for ; Thu, 16 Jul 2020 08:23:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727888AbgGPIXu (ORCPT ); Thu, 16 Jul 2020 04:23:50 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:40096 "EHLO mx0b-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725922AbgGPIXj (ORCPT ); Thu, 16 Jul 2020 04:23:39 -0400 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 06G8LhVw162515; Thu, 16 Jul 2020 04:23:36 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 329d9k0ykk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Jul 2020 04:23:36 -0400 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 06G84CRv100416; Thu, 16 Jul 2020 04:23:35 -0400 Received: from ppma02fra.de.ibm.com (47.49.7a9f.ip4.static.sl-reverse.com [159.122.73.71]) by mx0a-001b2d01.pphosted.com with ESMTP id 329d9k0yjv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Jul 2020 04:23:35 -0400 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 06G8JwYc015902; Thu, 16 Jul 2020 08:23:34 GMT Received: from b06avi18626390.portsmouth.uk.ibm.com (b06avi18626390.portsmouth.uk.ibm.com [9.149.26.192]) by ppma02fra.de.ibm.com with ESMTP id 327527wgh9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Jul 2020 08:23:33 +0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 06G8M8F162521690 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 16 Jul 2020 08:22:09 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A28654C044; Thu, 16 Jul 2020 08:23:31 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 286204C05A; Thu, 16 Jul 2020 08:23:31 +0000 (GMT) Received: from oc3016276355.ibm.com (unknown [9.145.61.186]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 16 Jul 2020 08:23:31 +0000 (GMT) From: Pierre Morel To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, frankja@linux.ibm.com, david@redhat.com, thuth@redhat.com, cohuck@redhat.com, drjones@redhat.com Subject: [kvm-unit-tests PATCH v13 0/9] s390x: Testing the Channel Subsystem I/O Date: Thu, 16 Jul 2020 10:23:20 +0200 Message-Id: <1594887809-10521-1-git-send-email-pmorel@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-16_04:2020-07-16,2020-07-16 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=999 suspectscore=1 malwarescore=0 adultscore=0 mlxscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 spamscore=0 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007160058 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi All, This new respin of the series add modifications to - patch 9: s390x: css: ssch/tsch with sense and interrupt Other patches did not change. Recall: Goal of the series is to have a framework to test Channel-Subsystem I/O with QEMU/KVM. To be able to support interrupt for CSS I/O and for SCLP we need to modify the interrupt framework to allow re-entrant interruptions. We add a registration for IRQ callbacks to the test program to define its own interrupt handler. We need to do special work under interrupt like acknowledging the interrupt. This series presents three tests: - Enumeration: The CSS is enumerated using the STSCH instruction recursively on all potentially existing channels. Keeping the first channel found as a reference for future use. Checks STSCH - Enable: If the enumeration succeeded the tests enables the reference channel with MSCH and verifies with STSCH that the channel is effectively enabled, retrying a predefined count on failure to enable the channel Checks MSCH - Sense: If the channel is enabled this test sends a SENSE_ID command to the reference channel, analyzing the answer and expecting the Control unit type being 0x3832, a.k.a. virtio-ccw. Checks SSCH(READ) and IO-IRQ Note: - The following 5 patches are general usage and may be pulled first: s390x: saving regs for interrupts s390x: I/O interrupt registration s390x: export the clock get_clock_ms() utility s390x: clock and delays calculations s390x: define function to wait for interrupt - These 4 patches are really I/O oriented: s390x: Library resources for CSS tests s390x: css: stsch, enumeration test s390x: css: msch, enable test s390x: css: ssch/tsch with sense and interrupt Regards, Pierre Pierre Morel (9): s390x: saving regs for interrupts s390x: I/O interrupt registration s390x: export the clock get_clock_ms() utility s390x: clock and delays calculations s390x: define function to wait for interrupt s390x: Library resources for CSS tests s390x: css: stsch, enumeration test s390x: css: msch, enable test s390x: css: ssch/tsch with sense and interrupt lib/s390x/asm/arch_def.h | 14 ++ lib/s390x/asm/time.h | 50 ++++++ lib/s390x/css.h | 294 +++++++++++++++++++++++++++++++++++ lib/s390x/css_dump.c | 152 ++++++++++++++++++ lib/s390x/css_lib.c | 323 +++++++++++++++++++++++++++++++++++++++ lib/s390x/interrupt.c | 23 ++- lib/s390x/interrupt.h | 8 + s390x/Makefile | 3 + s390x/css.c | 150 ++++++++++++++++++ s390x/cstart64.S | 41 ++++- s390x/intercept.c | 11 +- s390x/unittests.cfg | 4 + 12 files changed, 1060 insertions(+), 13 deletions(-) create mode 100644 lib/s390x/asm/time.h create mode 100644 lib/s390x/css.h create mode 100644 lib/s390x/css_dump.c create mode 100644 lib/s390x/css_lib.c create mode 100644 lib/s390x/interrupt.h create mode 100644 s390x/css.c