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From: Narcisa Ana Maria Vasile <navasile@linux.microsoft.com>
To: Tal Shnaiderman <talshn@nvidia.com>
Cc: dev@dpdk.org, thomas@monjalon.net, pallavi.kadam@intel.com,
	dmitry.kozliuk@gmail.com, ranjit.menon@intel.com,
	harini.ramakrishnan@microsoft.com
Subject: Re: [dpdk-dev] [PATCH] bus/pci: support segment value as address domain on Windows
Date: Wed, 9 Sep 2020 16:21:21 -0700
Message-ID: <20200909232121.GB13311@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> (raw)
In-Reply-To: <20200825114316.10712-1-talshn@nvidia.com>

On Tue, Aug 25, 2020 at 02:43:16PM +0300, Tal Shnaiderman wrote:
> Set the domain value for rte_pci_addr probing on Windows
> to the value of the PCI segment returned by SPDRP_BUSNUMBER.
> 
> Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
> ---
>  drivers/bus/pci/windows/pci.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/bus/pci/windows/pci.c b/drivers/bus/pci/windows/pci.c
> index 489aa7902a..a40acec609 100644
> --- a/drivers/bus/pci/windows/pci.c
> +++ b/drivers/bus/pci/windows/pci.c
> @@ -195,8 +195,8 @@ get_device_pci_address(HDEVINFO dev_info,
>  		return -1;
>  	}
>  
> -	addr->domain = 0;
> -	addr->bus = bus_num;
> +	addr->domain = bus_num >> 8;
> +	addr->bus = bus_num & 0xff;
>  	addr->devid = dev_and_func >> 16;
>  	addr->function = dev_and_func & 0xffff;
>  	return 0;
> -- 
Is this needed to avoid collision of devices with the same B:D:F?

  reply	other threads:[~2020-09-09 23:21 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-25 11:43 Tal Shnaiderman
2020-09-09 23:21 ` Narcisa Ana Maria Vasile [this message]
2020-09-10  7:30   ` Tal Shnaiderman
2020-09-10 17:21     ` Menon, Ranjit
2020-09-13 14:50       ` Tal Shnaiderman
2020-09-10 17:57     ` Dmitry Kozlyuk
2020-09-13 14:54       ` Tal Shnaiderman
2020-09-16 18:32 ` Ranjit Menon
2020-10-14  9:01   ` Thomas Monjalon

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