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=-14.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 73474C433E0 for ; Sun, 17 Jan 2021 03:44:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39C3F22D72 for ; Sun, 17 Jan 2021 03:44:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727087AbhAQDnv (ORCPT ); Sat, 16 Jan 2021 22:43:51 -0500 Received: from mail-pf1-f173.google.com ([209.85.210.173]:36769 "EHLO mail-pf1-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726831AbhAQDnv (ORCPT ); Sat, 16 Jan 2021 22:43:51 -0500 Received: by mail-pf1-f173.google.com with SMTP id b3so8130935pft.3; Sat, 16 Jan 2021 19:43:35 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=U+QdVbDm+ZXIHrLWBLuKdDUFMDUi7DR0AIHkMgQp5Ws=; b=VognvNhGs9qHkOnzf617rjxjAVDkT4CKO7qzzsGUgBoxfyS1VwkaitSGvY3qTeh8Um C7W8MCJF6Se4BU/9+7mC7+787dJQxx+dVIk2vsE2OzwJooEAnBpISENT3dc77anOzy2+ n8xwakz1T06udc3+2cD2Vz8HSaO+3axehCiKBNGOLscPo97cRr84INBiTs+b3gChYs5d K72BKldxveg7bhUX/bhxA8z67iRS3qZ/qwi172lkfSwMTJjBKSqi3xbtDuiwmTVDvapv rELB0GJInz9eGEV6xClu/sbORSbLTiphYqAdYBC/pYFpXJHkTWMTifqCAoANa0ik0HGC lrIg== X-Gm-Message-State: AOAM530f63DnTMikcsit7ZH2LK3/IRTVomwJ9t6fwXtTgewZujnnmwtJ +ZyQXJ6+yjewiBfsuE3JAmA= X-Google-Smtp-Source: ABdhPJzoRs4IS77hgxeHqnCI2PGNA8F6FFxZNSJz99WJ+dwd+HHXbjHUc0uD8Mn2dsKfJewfOdVYYg== X-Received: by 2002:a62:2bd4:0:b029:1ae:4d9f:60da with SMTP id r203-20020a622bd40000b02901ae4d9f60damr20751041pfr.20.1610854990004; Sat, 16 Jan 2021 19:43:10 -0800 (PST) Received: from localhost ([2601:647:5b00:1161:a4cc:eef9:fbc0:2781]) by smtp.gmail.com with ESMTPSA id z28sm12592339pfr.140.2021.01.16.19.43.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Jan 2021 19:43:09 -0800 (PST) Date: Sat, 16 Jan 2021 19:43:08 -0800 From: Moritz Fischer To: trix@redhat.com Cc: shuah@kernel.org, mdf@kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-fpga@vger.kernel.org Subject: Re: [PATCH v2] selftests: drivers: fpga: A test for interrupt support Message-ID: References: <20210116193321.385848-1-trix@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210116193321.385848-1-trix@redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-fpga@vger.kernel.org Hi Tom, On Sat, Jan 16, 2021 at 11:33:21AM -0800, trix@redhat.com wrote: > From: Tom Rix > > Check that the ioctl DFL_FPGA_PORT_ERR_GET_IRQ_NUM returns > an expected result. > > Tested on vf device 0xbcc1 > > Sample run with > # make -C tools/testing/selftests TARGETS=drivers/fpga run_tests > ... > TAP version 13 > 1..1 > # selftests: drivers/fpga: intr > # TAP version 13 > # 1..1 > # # Starting 1 tests from 1 test cases. > # # RUN global.afu_intr ... > # # OK global.afu_intr > # ok 1 global.afu_intr > # # PASSED: 1 / 1 tests passed. > # # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 > ok 1 selftests: drivers/fpga: intr > > Signed-off-by: Tom Rix > --- > v1: Convert to kselftest_harness.h framework > --- > MAINTAINERS | 1 + > tools/testing/selftests/Makefile | 1 + > tools/testing/selftests/drivers/fpga/Makefile | 7 ++++ > tools/testing/selftests/drivers/fpga/config | 1 + > tools/testing/selftests/drivers/fpga/intr.c | 36 +++++++++++++++++++ > 5 files changed, 46 insertions(+) > create mode 100644 tools/testing/selftests/drivers/fpga/Makefile > create mode 100644 tools/testing/selftests/drivers/fpga/config > create mode 100644 tools/testing/selftests/drivers/fpga/intr.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index de610a06cb5c..7ed3ce58d95e 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -6973,6 +6973,7 @@ F: Documentation/driver-api/fpga/ > F: Documentation/fpga/ > F: drivers/fpga/ > F: include/linux/fpga/ > +F: tools/testing/selftests/drivers/fpga/ > > FPGA SECURITY MANAGER DRIVERS > M: Russ Weight > diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile > index afbab4aeef3c..aad4763ec348 100644 > --- a/tools/testing/selftests/Makefile > +++ b/tools/testing/selftests/Makefile > @@ -9,6 +9,7 @@ TARGETS += core > TARGETS += cpufreq > TARGETS += cpu-hotplug > TARGETS += drivers/dma-buf > +TARGETS += drivers/fpga > TARGETS += efivarfs > TARGETS += exec > TARGETS += filesystems > diff --git a/tools/testing/selftests/drivers/fpga/Makefile b/tools/testing/selftests/drivers/fpga/Makefile > new file mode 100644 > index 000000000000..eba35c405d5b > --- /dev/null > +++ b/tools/testing/selftests/drivers/fpga/Makefile > @@ -0,0 +1,7 @@ > +# SPDX-License-Identifier: GPL-2.0-only > +CFLAGS += -I../../../../../usr/include/ > +CFLAGS += -I../../../../../include/uapi/ > + > +TEST_GEN_PROGS := intr > + > +include ../../lib.mk > diff --git a/tools/testing/selftests/drivers/fpga/config b/tools/testing/selftests/drivers/fpga/config > new file mode 100644 > index 000000000000..e2111b81d8d7 > --- /dev/null > +++ b/tools/testing/selftests/drivers/fpga/config > @@ -0,0 +1 @@ > +CONFIG_FPGA_DFL_AFU=m > diff --git a/tools/testing/selftests/drivers/fpga/intr.c b/tools/testing/selftests/drivers/fpga/intr.c > new file mode 100644 > index 000000000000..b362fb1f788d > --- /dev/null > +++ b/tools/testing/selftests/drivers/fpga/intr.c > @@ -0,0 +1,36 @@ > +// SPDX-License-Identifier: GPL-2.0 > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#include "../../kselftest_harness.h" Is that how it works with selftests? > + > +TEST(afu_intr) > +{ > + int devfd, status; > + struct dfl_fpga_port_info port_info; > + uint32_t irq_num = UINT32_MAX; Can you order those? xxxx xx x > + > + devfd = open("/dev/dfl-port.0", O_RDONLY); > + if (devfd < 0) > + SKIP(0, "no fpga afu device 0"); > + /* > + * From fpga-dl.h : > + * Currently hardware supports up to 1 irq. > + * Return: 0 on success, -errno on failure. > + */ > + status = ioctl(devfd, DFL_FPGA_PORT_ERR_GET_IRQ_NUM, &irq_num); > + ASSERT_EQ(0, status) { > + TH_LOG("ioctl() failed to get the number irqs"); > + } > + ASSERT_LT(irq_num, 256) { > + TH_LOG("unexpeced number of irqs"); > + } > + close(devfd); > +} > + > +TEST_HARNESS_MAIN > -- > 2.27.0 > Thanks for starting this, I don't know a lot about selftests (yet). So we probably want to get a look at this from corresponding maintainers. - Moritz