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From: "Gaëtan Rivet" <grive@u256.net>
To: Sunil Kumar Kori <skori@marvell.com>
Cc: stephen@networkplumber.org, david.marchand@redhat.com,
	jerinj@marvell.com, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v5 1/1] bus/pci: optimise scanning with whitelist/blacklist
Date: Sat, 2 May 2020 13:27:25 +0200	[thread overview]
Message-ID: <20200502112725.mcjvfnokd4qv7y5k@u256.net> (raw)
In-Reply-To: <20200502074205.29080-1-skori@marvell.com>

On 02/05/20 13:12 +0530, Sunil Kumar Kori wrote:
> rte_bus_scan API scans all the available PCI devices irrespective of white
> or black listing parameters then further devices are probed based on white
> or black listing parameters. So unnecessary CPU cycles are wasted during
> rte_pci_scan.
> 
> For Octeontx2 platform with core frequency 2.4 Ghz, rte_bus_scan consumes
> around 26ms to scan around 90 PCI devices but all may not be used by the
> application. So for the application which uses 2 NICs, rte_bus_scan
> consumes few microseconds and rest time is saved with this patch.
> 
> Patch restricts devices to be scanned as per below mentioned conditions:
>  - All devices will be scanned if no parameters are passed.
>  - Only white listed devices will be scanned if white list is available.
>  - All devices, except black listed, will be scanned if black list is
>    available.
> 
> Signed-off-by: Sunil Kumar Kori <skori@marvell.com>

LGTM,
Acked-by: Gaetan Rivet <grive@u256.net>

-- 
Gaëtan

  reply	other threads:[~2020-05-02 11:27 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-16  7:55 [dpdk-dev] [PATCH] bus/pci: restricted bus scanning to allowed devices Sunil Kumar Kori
2019-12-16 16:13 ` Stephen Hemminger
2019-12-17 11:00   ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-01-21  8:39     ` Sunil Kumar Kori
     [not found]       ` <MN2PR18MB327936807460D9F2AE4894F3B40F0@MN2PR18MB3279.namprd18.prod.outlook.com>
2020-02-27  8:30         ` Sunil Kumar Kori
2020-03-09  6:06           ` Sunil Kumar Kori
2020-04-06  9:32             ` Sunil Kumar Kori
2020-04-06 13:21               ` David Marchand
2020-04-07  9:21                 ` Sunil Kumar Kori
2020-04-07  9:28 ` [dpdk-dev] [PATCH v2 1/1] bus/pci: optimise scanning with whitelist/blacklist Sunil Kumar Kori
2020-04-17  8:30   ` Sunil Kumar Kori
2020-04-17  8:44   ` David Marchand
2020-04-17 11:15     ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-04-17 13:25       ` David Marchand
2020-04-17 15:12         ` Sunil Kumar Kori
2020-04-17 15:35           ` David Marchand
2020-04-17 16:00             ` Sunil Kumar Kori
2020-04-20  6:59               ` Sunil Kumar Kori
2020-04-20  6:55   ` [dpdk-dev] [PATCH v3 " Sunil Kumar Kori
2020-04-21 15:18     ` Gaëtan Rivet
2020-04-22  6:17       ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-04-22  9:38         ` Gaëtan Rivet
2020-04-23  7:47           ` Sunil Kumar Kori
2020-04-27 18:43     ` [dpdk-dev] " Gaëtan Rivet
2020-04-28 13:52       ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-05-01 11:39     ` [dpdk-dev] [PATCH v4 " Sunil Kumar Kori
2020-05-01 12:40       ` Sunil Kumar Kori
2020-05-01 21:00       ` Gaëtan Rivet
2020-05-02  7:20         ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-05-02  7:42       ` [dpdk-dev] [PATCH v5 " Sunil Kumar Kori
2020-05-02 11:27         ` Gaëtan Rivet [this message]
2020-05-04 14:17         ` David Marchand
2020-05-05  5:57           ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-05-06 12:54           ` [dpdk-dev] " David Marchand
2020-05-11 14:59         ` David Marchand

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