Re: [dpdk-dev] [PATCH v5 1/1] bus/pci: optimise scanning with whitelist/blacklist

["Gaëtan Rivet" <grive@u256.net>]

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