From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id 46D3045C16;
	Wed, 30 Oct 2024 16:48:04 +0100 (CET)
Received: from mails.dpdk.org (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id 075AB4028F;
	Wed, 30 Oct 2024 16:48:04 +0100 (CET)
Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com
 [209.85.214.174])
 by mails.dpdk.org (Postfix) with ESMTP id DE7BF40281
 for <dev@dpdk.org>; Wed, 30 Oct 2024 16:48:02 +0100 (CET)
Received: by mail-pl1-f174.google.com with SMTP id
 d9443c01a7336-20c805a0753so184585ad.0
 for <dev@dpdk.org>; Wed, 30 Oct 2024 08:48:02 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1730303282;
 x=1730908082; darn=dpdk.org; 
 h=content-transfer-encoding:mime-version:references:in-reply-to
 :message-id:subject:cc:to:from:date:from:to:cc:subject:date
 :message-id:reply-to;
 bh=1fRlDNywXHL+uSnxDLfOCGUL1T/7q/qi07byF7/dDuc=;
 b=jY83f47o6TUMtoPTWpGw8NnQhCkzHFfzg/fDZ8N6yfN3BAw8Fs8sMteAk4X6IACzD3
 +Q7Rs2yG0m0Ma5O7ME3HROkW8wUqhIJB7xSea39iuSiTd0/It40Su/MkfBDYIfBxA1vp
 STQCCH+iZq4+2UVWJF6o/gjoonfxeA3zxeTX2lrZRLcKc07TH/wPm7iBZClTqIeNaiD7
 vmlzIEXMb2FjRLzNHlV5Cqy2EhiLQMTb1qayNrsuUCI+k1k9ivXbXBTx/nWudbA6AxCd
 ajrJl/8zitTjm++Der/imAndDUCY3VUtix2n0rCi7qjOheMeikAn+fXAwhfq3DRNOc4u
 JZuA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20230601; t=1730303282; x=1730908082;
 h=content-transfer-encoding:mime-version:references:in-reply-to
 :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc
 :subject:date:message-id:reply-to;
 bh=1fRlDNywXHL+uSnxDLfOCGUL1T/7q/qi07byF7/dDuc=;
 b=q+2P/TKZDi6vBJ31pOtEl/Ylkvw6VXZr3Qy5rNMv7jtsjsPapixfp2AxxRED98vYm0
 LC7l7gSxLKOX8+ekXFfMGoNFXBKawI/MN2qdHETDkngdVt0B3EzwAKzz6RJue4XKi4Ew
 se7LCKcylLWkEyPVV9ggCgaSuJegKF7nQc4ml0KSW1QS6ngrqeNCQqGBls0O//W52QV+
 RMDtcSzvr0KSrz1jXWcL6SnQlmLxRk5zymtd4UR2Vf26unhcm5tnMKXL0nmZFH0ZFSwI
 1ZtjfVfOUGDNcUsV/KStGMz2IhttXati3UmA9pH2YrCuEgySXMsS8NDLk4SwGK7aWUuL
 XLhw==
X-Gm-Message-State: AOJu0YzuoJXhqJo2kyZ6xF25WcmECR3KM86Bw2RckjwuYgFB7P1wdv93
 69KN1Fm4FgiojYSsuI0OWmTvDsYUybjlm4yUNtWudz5XqJKAkHfdpAnf31iODtw=
X-Google-Smtp-Source: AGHT+IF+gsFENyFm8nBBXHhL+v83nFiEC2o0JEyPTYr+v6Qud4qMtjlWGOoaRr7Bay2OrKyKrlhDBQ==
X-Received: by 2002:a17:902:f542:b0:20b:8bf5:cd72 with SMTP id
 d9443c01a7336-210c6c6f727mr209974885ad.49.1730303281973; 
 Wed, 30 Oct 2024 08:48:01 -0700 (PDT)
Received: from hermes.local (204-195-96-226.wavecable.com. [204.195.96.226])
 by smtp.gmail.com with ESMTPSA id
 d9443c01a7336-210bbf84597sm81898445ad.111.2024.10.30.08.48.01
 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
 Wed, 30 Oct 2024 08:48:01 -0700 (PDT)
Date: Wed, 30 Oct 2024 08:47:59 -0700
From: Stephen Hemminger <stephen@networkplumber.org>
To: Vipin Varghese <vipin.varghese@amd.com>
Cc: <dev@dpdk.org>, <roretzla@linux.microsoft.com>,
 <bruce.richardson@intel.com>, <john.mcnamara@intel.com>,
 <dmitry.kozliuk@gmail.com>, <jerinj@marvell.com>, <ruifeng.wang@arm.com>,
 <mattias.ronnblom@ericsson.com>, <anatoly.burakov@intel.com>,
 <ferruh.yigit@amd.com>, <honnappa.nagarahalli@arm.com>,
 <wathsala.vithanage@arm.com>, <konstantin.ananyev@huawei.com>
Subject: Re: [RFC v3 1/3] eal/lcore: add topology based functions
Message-ID: <20241030084759.2937bc4e@hermes.local>
In-Reply-To: <20241030054133.520-2-vipin.varghese@amd.com>
References: <20241030054133.520-1-vipin.varghese@amd.com>
 <20241030054133.520-2-vipin.varghese@amd.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org

On Wed, 30 Oct 2024 11:11:31 +0530
Vipin Varghese <vipin.varghese@amd.com> wrote:

> +struct topology_config {
> +#ifdef RTE_EAL_HWLOC_TOPOLOGY_PROBE
> +	hwloc_topology_t topology;
> +#endif
> +
> +	/* domain count */
> +	uint16_t l1_count;
> +	uint16_t l2_count;
> +	uint8_t l3_count;
> +	uint8_t io_count;
> +
> +	/* total cores under all domain */
> +	uint16_t l1_core_count;
> +	uint16_t l2_core_count;
> +	uint16_t l3_core_count;
> +	uint16_t io_core_count;
> +
> +	/* two dimensional array for each domain */
> +	struct core_domain_mapping **l1;
> +	struct core_domain_mapping **l2;
> +	struct core_domain_mapping **l3;
> +	struct core_domain_mapping **io;
> +};
> +extern struct topology_config topo_cnfg;
> +

To work with primary/secondary process model, it might be better to keep
this info in hugpage/shared memory. I.e put topology_config into space
allocated with rte_malloc() and populated by primary process.