netdev - Re: [PATCH net-next 12/19] devlink: Introduce mdev port flavour

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Message-ID: <20191107153836.29c09400@cakuba.netronome.com>
Date:   Thu, 7 Nov 2019 15:38:36 -0500
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Parav Pandit <parav@...lanox.com>
Cc:     alex.williamson@...hat.com, davem@...emloft.net,
        kvm@...r.kernel.org, netdev@...r.kernel.org, saeedm@...lanox.com,
        kwankhede@...dia.com, leon@...nel.org, cohuck@...hat.com,
        jiri@...lanox.com, linux-rdma@...r.kernel.org
Subject: Re: [PATCH net-next 12/19] devlink: Introduce mdev port flavour

On Thu,  7 Nov 2019 10:08:27 -0600, Parav Pandit wrote:
> Introduce a new mdev port flavour for mdev devices.
> PF.
> Prepare such port's phys_port_name using unique mdev alias.
> 
> An example output for eswitch ports with one physical port and
> one mdev port:
> 
> $ devlink port show
> pci/0000:06:00.0/65535: type eth netdev p0 flavour physical port 0
> pci/0000:06:00.0/32768: type eth netdev p1b0348cf880a flavour mdev alias 1b0348cf880a

Surely those devices are anchored in on of the PF (or possibly VFs)
that should be exposed here from the start.

> Signed-off-by: Parav Pandit <parav@...lanox.com>

> @@ -6649,6 +6678,9 @@ static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
>  		n = snprintf(name, len, "pf%uvf%u",
>  			     attrs->pci_vf.pf, attrs->pci_vf.vf);
>  		break;
> +	case DEVLINK_PORT_FLAVOUR_MDEV:
> +		n = snprintf(name, len, "p%s", attrs->mdev.mdev_alias);

Didn't you say m$alias in the cover letter? Not p$alias?

> +		break;
>  	}
>  
>  	if (n >= len)