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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A2586C02181 for ; Fri, 24 Jan 2025 08:10:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5006710E917; Fri, 24 Jan 2025 08:10:56 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="h4sYzB73"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) by gabe.freedesktop.org (Postfix) with ESMTPS id 067EB10E917 for ; Fri, 24 Jan 2025 08:10:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1737706255; x=1769242255; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=22p5ortkHOVXe9+sTxVFIGEUTesCaygSDh6Kbt/FaWM=; b=h4sYzB73+Ap9DctSFxSghP+kf76+Qin+NOL+PSxlMJB+21CkoBR2NKdG nZmd34SgWH8Rtv8NhsJ1MEBnbSZIW0Cg7+NUxAQU02KnTx9RPGhvsHUXa aYHJ4shM1Vgg3vmfQR2t8IUXeQdW+VCMeDLITUW8HPMNky80YhaoYEoaO hxD6fwO7BHyMMc4uKBwLOiACarNRNyDEIRlVFUkh/M2dghA5w11K4uBcJ VANV/zYiY3QG8GDwJt6GuZY87b1ydEWIBOwaBSgyRl2kcJJbs8FVZPBfG TBBREeYOUVY/dkge96mvQIeWh3bIrNxQjeRaNnyUla6k1FE+rFqW6H6cn g==; X-CSE-ConnectionGUID: xKDwuOFkTqS0FOim59I/gQ== X-CSE-MsgGUID: w4xs5/7fTUuOWM52J5A8MQ== X-IronPort-AV: E=McAfee;i="6700,10204,11324"; a="63587303" X-IronPort-AV: E=Sophos;i="6.13,230,1732608000"; d="scan'208";a="63587303" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2025 00:10:55 -0800 X-CSE-ConnectionGUID: SfhnzggeTPSBKnVEnVmy4A== X-CSE-MsgGUID: ThVGYXgWSeq+ryy1EQJXBw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="112340324" Received: from llaguna-dev.igk.intel.com (HELO localhost) ([10.91.214.40]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2025 00:10:53 -0800 From: Lukasz Laguna To: igt-dev@lists.freedesktop.org Cc: marcin.bernatowicz@linux.intel.com, lukasz.laguna@intel.com, satyanarayana.k.v.p@intel.com, michal.wajdeczko@intel.com, adam.miszczak@linux.intel.com, jakub1.kolakowski@intel.com Subject: [PATCH i-g-t v1 2/4] lib/xe/xe_sriov_provisioning: Add helper to get VF's provisioned quota Date: Fri, 24 Jan 2025 09:10:37 +0100 Message-Id: <20250124081039.31201-3-lukasz.laguna@intel.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20250124081039.31201-1-lukasz.laguna@intel.com> References: <20250124081039.31201-1-lukasz.laguna@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" Add helper allowing to get VF's provisioned quota based on provisioned ranges exposed in debugfs. Signed-off-by: Lukasz Laguna --- lib/xe/xe_sriov_provisioning.c | 56 ++++++++++++++++++++++++++++++++++ lib/xe/xe_sriov_provisioning.h | 6 ++++ 2 files changed, 62 insertions(+) diff --git a/lib/xe/xe_sriov_provisioning.c b/lib/xe/xe_sriov_provisioning.c index 5ba348131..aedf9bd91 100644 --- a/lib/xe/xe_sriov_provisioning.c +++ b/lib/xe/xe_sriov_provisioning.c @@ -8,6 +8,7 @@ #include "igt_core.h" #include "igt_debugfs.h" +#include "igt_sriov_device.h" #include "intel_chipset.h" #include "linux_scaffold.h" #include "xe/xe_mmio.h" @@ -299,6 +300,61 @@ bool xe_sriov_is_shared_res_provisionable(int pf, enum xe_sriov_shared_res res, return true; } +/** + * __xe_sriov_pf_get_provisioned_quota - Get VF's provisioned quota. + * @pf: PF device file descriptor + * @res: Shared resource type (see enum xe_sriov_shared_res) + * @vf_num: VF number (1-based) + * @gt_num: GT number + * @value: Pointer to store the read value + * + * Gets VF's provisioning value for the specified shared resource @res, + * VF number @vf_num and GT number @gt_num. + * + * Return: 0 on success, negative error code on failure. + */ +int __xe_sriov_pf_get_provisioned_quota(int pf, enum xe_sriov_shared_res res, + unsigned int vf_num, unsigned int gt_num, + uint64_t *value) +{ + struct xe_sriov_provisioned_range *ranges; + int ret; + + ret = xe_sriov_pf_debugfs_read_check_ranges(pf, res, gt_num, &ranges, + igt_sriov_get_enabled_vfs(pf)); + if (igt_debug_on_f(ret, "%s: Failed ranges check on GT%u (%d)\n", + xe_sriov_debugfs_provisioned_attr_name(res), gt_num, ret)) + return ret; + + *value = ranges[vf_num - 1].end - ranges[vf_num - 1].start + 1; + + return 0; +} + +/** + * xe_sriov_pf_get_provisioned_quota - Get VF's provisioned quota. + * @pf: PF device file descriptor + * @res: Shared resource type (see enum xe_sriov_shared_res) + * @vf_num: VF number (1-based) + * @gt_num: GT number + * + * A throwing version of __xe_sriov_pf_get_provisioned_quota(). + * Instead of returning an error code, it returns the quota value and asserts + * in case of an error. + * + * Return: The provisioned quota for the given shared resource. + * Asserts in case of failure. + */ +uint64_t xe_sriov_pf_get_provisioned_quota(int pf, enum xe_sriov_shared_res res, + unsigned int vf_num, unsigned int gt_num) +{ + uint64_t value; + + igt_fail_on(__xe_sriov_pf_get_provisioned_quota(pf, res, vf_num, gt_num, &value)); + + return value; +} + /** * __xe_sriov_vf_get_shared_res_selfconfig - Read VF's configuration data. * @vf: VF device file descriptor diff --git a/lib/xe/xe_sriov_provisioning.h b/lib/xe/xe_sriov_provisioning.h index 1a05c2c59..0381b564c 100644 --- a/lib/xe/xe_sriov_provisioning.h +++ b/lib/xe/xe_sriov_provisioning.h @@ -90,6 +90,12 @@ void xe_sriov_pf_set_shared_res_attr(int pf, enum xe_sriov_shared_res res, unsigned int vf_num, unsigned int gt_num, uint64_t value); +int __xe_sriov_pf_get_provisioned_quota(int pf, enum xe_sriov_shared_res res, + unsigned int vf_num, unsigned int gt_num, + uint64_t *value); +uint64_t xe_sriov_pf_get_provisioned_quota(int pf, enum xe_sriov_shared_res res, + unsigned int vf_num, unsigned int gt_num); + int __xe_sriov_vf_get_shared_res_selfconfig(int vf, enum xe_sriov_shared_res res, unsigned int gt_num, uint64_t *value); uint64_t xe_sriov_vf_get_shared_res_selfconfig(int vf, enum xe_sriov_shared_res res, -- 2.40.0