Re: [dpdk-dev] [PATCH v1] net/tap: allow user MAC to be passed as args

["Varghese, Vipin" <vipin.varghese@intel.com>]

Hi Ferruh,

You are correct about this, I will add initialization send a next version patch.

> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Tuesday, March 6, 2018 4:42 PM
> To: Varghese, Vipin <vipin.varghese@intel.com>; dev@dpdk.org;
> pascal.mazon@6wind.com
> Cc: Jain, Deepak K <deepak.k.jain@intel.com>
> Subject: Re: [PATCH v1] net/tap: allow user MAC to be passed as args
> 
> On 2/12/2018 2:44 PM, Vipin Varghese wrote:
> > Allow TAP PMD to pass user desired MAC address as argument.
> > The argument value is processed as string delimited by  ':', is parsed
> > and converted to HEX MAC address after validation.
> >
> > Signed-off-by: Vipin Varghese <vipin.varghese@intel.com>
> > Signed-off-by: Pascal Mazon <pascal.mazon@6wind.com>
> 
> <...>
> 
> > @@ -1589,7 +1630,7 @@ enum ioctl_mode {
> >  	int speed;
> >  	char tap_name[RTE_ETH_NAME_MAX_LEN];
> >  	char remote_iface[RTE_ETH_NAME_MAX_LEN];
> > -	int fixed_mac_type = 0;
> > +	struct ether_addr user_mac;
> >
> >  	name = rte_vdev_device_name(dev);
> >  	params = rte_vdev_device_args(dev);
> > @@ -1626,7 +1667,7 @@ enum ioctl_mode {
> >  				ret = rte_kvargs_process(kvlist,
> >  							 ETH_TAP_MAC_ARG,
> >  							 &set_mac_type,
> > -							 &fixed_mac_type);
> > +							 &user_mac);
> >  				if (ret == -1)
> >  					goto leave;
> >  			}
> > @@ -1637,7 +1678,7 @@ enum ioctl_mode {
> >  	RTE_LOG(NOTICE, PMD, "Initializing pmd_tap for %s as %s\n",
> >  		name, tap_name);
> >
> > -	ret = eth_dev_tap_create(dev, tap_name, remote_iface,
> fixed_mac_type);
> > +	ret = eth_dev_tap_create(dev, tap_name, remote_iface, &user_mac);
> 
> "user_mac" without initial value is leading error when no "mac" argument is
> provided. It should be zeroed out.