netdev - RE: [RFC 1/2] net: Add support to configure SR-IOV VF minimum and maximum Tx rate through ip tool.

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Date:	Wed, 5 Mar 2014 09:36:26 +0000
From:	Sucheta Chakraborty <sucheta.chakraborty@...gic.com>
To:	Michal Kubecek <mkubecek@...e.cz>
CC:	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Dept-HSG Linux NIC Dev <Dept-HSGLinuxNICDev@...gic.com>
Subject: RE: [RFC 1/2] net: Add support to configure SR-IOV VF minimum and
 maximum Tx rate through ip tool.

> -----Original Message-----
> From: Michal Kubecek [mailto:mkubecek@...e.cz]
> Sent: Wednesday, March 05, 2014 3:03 PM
> To: Sucheta Chakraborty
> Cc: David Miller; netdev; Dept-HSG Linux NIC Dev
> Subject: Re: [RFC 1/2] net: Add support to configure SR-IOV VF minimum
> and maximum Tx rate through ip tool.
> 
> On Wed, Mar 05, 2014 at 02:33:35AM -0500, Sucheta Chakraborty wrote:
> > diff --git a/include/uapi/linux/if_link.h
> > b/include/uapi/linux/if_link.h index 16410b6..fce6437 100644
> > --- a/include/uapi/linux/if_link.h
> > +++ b/include/uapi/linux/if_link.h
> > @@ -398,7 +398,8 @@ enum {
> >  	IFLA_VF_UNSPEC,
> >  	IFLA_VF_MAC,		/* Hardware queue specific attributes */
> >  	IFLA_VF_VLAN,
> > -	IFLA_VF_TX_RATE,	/* TX Bandwidth Allocation */
> > +	IFLA_VF_TX_RATE,	/* Max TX Bandwidth Allocation */
> > +	IFLA_VF_RATE,		/* Min and Max TX Bandwidth Allocation */
> >  	IFLA_VF_SPOOFCHK,	/* Spoof Checking on/off switch */
> >  	IFLA_VF_LINK_STATE,	/* link state enable/disable/auto switch
> */
> >  	__IFLA_VF_MAX,
> 
> This would change the values of IFLA_VF_SPOOFCHK and
> IFLA_VF_LINK_STATE, making "old" (including current) iproute2
> incompatible with future kernels and vice versa.
> 
>                                                          Michal Kubecek

Thanks Michal for pointing this out. I will move the new enum "IFLA_VF_RATE" to the end of the list.

- Sucheta.
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