From patchwork Mon May 20 12:30:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 798566 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 2A7415674E; Mon, 20 May 2024 12:32:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716208374; cv=none; b=fuvHzFZuJk42h+hgYo10l+Iyht1GsZV7aqfdmCn1nu6HWIfmSbEAWqFJMakqOyBfpd7m+yWPcoFam9J9/nGEwbAPjy8sEKg9U5XKQS/LDKRvHW5dt0CswdiK1VGvVzyLwTCjd3POwbDTiJ8Arh/rQ3uvIViAP8n8CMFj0A5iTKg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716208374; c=relaxed/simple; bh=m8Ay8MkqRIOBzYe6MzQZIISyQvOfsbMcEQaEQT9xQ6Q=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=JVVP/6bqMbJnpSVS7BK+GBL8MYG0oqJSh+lI7Qq55QWqR+ZT3M6u/p+jCswY3xNbiZUXnOyLV3PQhXTEhQRfDOBDbHVlbf7WzPhkPLeJqJOR4P15qVVXVI4Y6zwODwhZZMVTpDH/4vAq5LkxyrcAUdX+22bT6JUwyvMe/+fgpAc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=cisR0SiT; arc=none smtp.client-ip=198.175.65.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="cisR0SiT" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716208373; x=1747744373; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=m8Ay8MkqRIOBzYe6MzQZIISyQvOfsbMcEQaEQT9xQ6Q=; b=cisR0SiTIAtBZWuByJsZcbTQrtEPYnG86j7oNz+d5fce4oV4KFl3fEVd +9q+EgoXoWty+RwQVPvcWlIEb23fsNMJQsnqy5Lcri9bTOzga1eJqUM6L BLI6H1PKCCavXxrMJyj8trJF44KinRJ2xoSVqX1VjGg7kjxtFXgTU43U9 vgxQvlLzlGRSrw9yqiezH4wESA6vGE3kYC0WwLDK7WadpfTRN5AmyC5y0 A5JLrZfgDC+ovH6lt81KNYLFxcCvOzSYLu33lPSPZbdpd7r8IjwAUjuDr y5H+Zajx033GmwUHxQF7hdgM12ObP+9JUXi6ExoflgfGh2KFv5MjkWQ49 A==; X-CSE-ConnectionGUID: +QPScvsGTDOZOApOLHLnUw== X-CSE-MsgGUID: TKeLot8ETLOfLH8fo1/9mg== X-IronPort-AV: E=McAfee;i="6600,9927,11078"; a="23475528" X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="23475528" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2024 05:32:53 -0700 X-CSE-ConnectionGUID: BNKLkKUrSkqJ7FtAUVMe7A== X-CSE-MsgGUID: kBxmBYOxT8SvJpnXXwqNzA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="63747818" Received: from unknown (HELO localhost) ([10.245.247.114]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2024 05:32:49 -0700 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-kselftest@vger.kernel.org, Reinette Chatre , Shuah Khan , Babu Moger , =?utf-8?q?Maciej_Wiecz=C3=B3r-Retman?= Cc: linux-kernel@vger.kernel.org, Fenghua Yu , Shuah Khan , =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH v4 16/16] selftests/resctrl: Remove test name comparing from write_bm_pid_to_resctrl() Date: Mon, 20 May 2024 15:30:20 +0300 Message-Id: <20240520123020.18938-17-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240520123020.18938-1-ilpo.jarvinen@linux.intel.com> References: <20240520123020.18938-1-ilpo.jarvinen@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 write_bm_pid_to_resctrl() uses resctrl_val to check test name which is not a good interface generic resctrl FS functions should provide. Only MBM and CMT tests define mongrp so the test name check in write_bm_pid_to_resctrl() can be changed to depend simply on mongrp being non-NULL. With last user of resctrl_val gone, the parameter and member from the struct resctrl_val_param can removed. Test name constants can also be removed because they are not used anymore. Signed-off-by: Ilpo Järvinen --- tools/testing/selftests/resctrl/cat_test.c | 5 +-- tools/testing/selftests/resctrl/cmt_test.c | 1 - tools/testing/selftests/resctrl/mba_test.c | 1 - tools/testing/selftests/resctrl/mbm_test.c | 1 - tools/testing/selftests/resctrl/resctrl.h | 10 +----- tools/testing/selftests/resctrl/resctrl_val.c | 4 +-- tools/testing/selftests/resctrl/resctrlfs.c | 33 ++++++++----------- 7 files changed, 17 insertions(+), 38 deletions(-) diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c index c7686fb6641a..d4dffc934bc3 100644 --- a/tools/testing/selftests/resctrl/cat_test.c +++ b/tools/testing/selftests/resctrl/cat_test.c @@ -158,7 +158,6 @@ static int cat_test(const struct resctrl_test *test, struct resctrl_val_param *param, size_t span, unsigned long current_mask) { - char *resctrl_val = param->resctrl_val; struct perf_event_read pe_read; struct perf_event_attr pea; cpu_set_t old_affinity; @@ -178,8 +177,7 @@ static int cat_test(const struct resctrl_test *test, return ret; /* Write benchmark to specified con_mon grp, mon_grp in resctrl FS*/ - ret = write_bm_pid_to_resctrl(bm_pid, param->ctrlgrp, param->mongrp, - resctrl_val); + ret = write_bm_pid_to_resctrl(bm_pid, param->ctrlgrp, param->mongrp); if (ret) goto reset_affinity; @@ -272,7 +270,6 @@ static int cat_run_test(const struct resctrl_test *test, const struct user_param start_mask = create_bit_mask(start, n); struct resctrl_val_param param = { - .resctrl_val = CAT_STR, .ctrlgrp = "c1", .filename = RESULT_FILE_NAME, .num_of_runs = 0, diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c index b63fa1e93307..d1c272743eb2 100644 --- a/tools/testing/selftests/resctrl/cmt_test.c +++ b/tools/testing/selftests/resctrl/cmt_test.c @@ -144,7 +144,6 @@ static int cmt_run_test(const struct resctrl_test *test, const struct user_param } struct resctrl_val_param param = { - .resctrl_val = CMT_STR, .ctrlgrp = "c1", .filename = RESULT_FILE_NAME, .mask = ~(long_mask << n) & long_mask, diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c index 5e0b1e794295..1f2a7dc73b62 100644 --- a/tools/testing/selftests/resctrl/mba_test.c +++ b/tools/testing/selftests/resctrl/mba_test.c @@ -164,7 +164,6 @@ static void mba_test_cleanup(void) static int mba_run_test(const struct resctrl_test *test, const struct user_params *uparams) { struct resctrl_val_param param = { - .resctrl_val = MBA_STR, .ctrlgrp = "c1", .filename = RESULT_FILE_NAME, .init = mba_init, diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c index 27b936fe60bc..39aa70374154 100644 --- a/tools/testing/selftests/resctrl/mbm_test.c +++ b/tools/testing/selftests/resctrl/mbm_test.c @@ -132,7 +132,6 @@ static void mbm_test_cleanup(void) static int mbm_run_test(const struct resctrl_test *test, const struct user_params *uparams) { struct resctrl_val_param param = { - .resctrl_val = MBM_STR, .ctrlgrp = "c1", .filename = RESULT_FILE_NAME, .init = mbm_init, diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index a999fbc13fd3..2dda56084588 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -81,7 +81,6 @@ struct resctrl_test { /* * resctrl_val_param: resctrl test parameters - * @resctrl_val: Resctrl feature (Eg: mbm, mba.. etc) * @ctrlgrp: Name of the control monitor group (con_mon grp) * @mongrp: Name of the monitor group (mon grp) * @filename: Name of file to which the o/p should be written @@ -90,7 +89,6 @@ struct resctrl_test { * @measure: Callback that performs the measurement (a single test) */ struct resctrl_val_param { - char *resctrl_val; const char *ctrlgrp; const char *mongrp; char filename[64]; @@ -113,11 +111,6 @@ struct perf_event_read { } values[2]; }; -#define MBM_STR "mbm" -#define MBA_STR "mba" -#define CMT_STR "cmt" -#define CAT_STR "cat" - /* * Memory location that consumes values compiler must not optimize away. * Volatile ensures writes to this location cannot be optimized away by @@ -143,8 +136,7 @@ int taskset_benchmark(pid_t bm_pid, int cpu_no, cpu_set_t *old_affinity); int taskset_restore(pid_t bm_pid, cpu_set_t *old_affinity); int write_schemata(const char *ctrlgrp, char *schemata, int cpu_no, const char *resource); -int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, - const char *mongrp, const char *resctrl_val); +int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, const char *mongrp); int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu, int group_fd, unsigned long flags); unsigned char *alloc_buffer(size_t buf_size, int memflush); diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c index b2b944a70fb9..719a08ece9d3 100644 --- a/tools/testing/selftests/resctrl/resctrl_val.c +++ b/tools/testing/selftests/resctrl/resctrl_val.c @@ -695,7 +695,6 @@ int resctrl_val(const struct resctrl_test *test, const char * const *benchmark_cmd, struct resctrl_val_param *param) { - char *resctrl_val = param->resctrl_val; struct sigaction sigact; int ret = 0, pipefd[2]; char pipe_message = 0; @@ -786,8 +785,7 @@ int resctrl_val(const struct resctrl_test *test, goto out; /* Write benchmark to specified control&monitoring grp in resctrl FS */ - ret = write_bm_pid_to_resctrl(bm_pid, param->ctrlgrp, param->mongrp, - resctrl_val); + ret = write_bm_pid_to_resctrl(bm_pid, param->ctrlgrp, param->mongrp); if (ret) goto out; diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c index 6b4448588666..4bf1fe6dc308 100644 --- a/tools/testing/selftests/resctrl/resctrlfs.c +++ b/tools/testing/selftests/resctrl/resctrlfs.c @@ -519,7 +519,6 @@ static int write_pid_to_tasks(char *tasks, pid_t pid) * @bm_pid: PID that should be written * @ctrlgrp: Name of the control monitor group (con_mon grp) * @mongrp: Name of the monitor group (mon grp) - * @resctrl_val: Resctrl feature (Eg: mbm, mba.. etc) * * If a con_mon grp is requested, create it and write pid to it, otherwise * write pid to root con_mon grp. @@ -529,8 +528,7 @@ static int write_pid_to_tasks(char *tasks, pid_t pid) * * Return: 0 on success, < 0 on error. */ -int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, - const char *mongrp, const char *resctrl_val) +int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, const char *mongrp) { char controlgroup[128], monitorgroup[512], monitorgroup_p[256]; char tasks[1024]; @@ -550,22 +548,19 @@ int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, if (ret) goto out; - /* Create mon grp and write pid into it for "mbm" and "cmt" test */ - if (!strncmp(resctrl_val, CMT_STR, sizeof(CMT_STR)) || - !strncmp(resctrl_val, MBM_STR, sizeof(MBM_STR))) { - if (mongrp) { - sprintf(monitorgroup_p, "%s/mon_groups", controlgroup); - sprintf(monitorgroup, "%s/%s", monitorgroup_p, mongrp); - ret = create_grp(mongrp, monitorgroup, monitorgroup_p); - if (ret) - goto out; - - sprintf(tasks, "%s/mon_groups/%s/tasks", - controlgroup, mongrp); - ret = write_pid_to_tasks(tasks, bm_pid); - if (ret) - goto out; - } + /* Create monitor group and write pid into if it is used */ + if (mongrp) { + sprintf(monitorgroup_p, "%s/mon_groups", controlgroup); + sprintf(monitorgroup, "%s/%s", monitorgroup_p, mongrp); + ret = create_grp(mongrp, monitorgroup, monitorgroup_p); + if (ret) + goto out; + + sprintf(tasks, "%s/mon_groups/%s/tasks", + controlgroup, mongrp); + ret = write_pid_to_tasks(tasks, bm_pid); + if (ret) + goto out; } out: