Hi,
Probably I missed something in understanding why the mac is not set on kni
creation. Any comments would be highly appreciated.
Thanks,
Sergey
On Friday 28 August 2015 16:06:27 Sergey Balabanov wrote:
> There is a situation when ioctl returns zero mac address (00:00:00:00:00:00)
> for just created kni. The situation happens because kni mac is set on
> 'ipconfig up' event (kni_net_open callback) not on kni creation
> (kni_ioctl_create).
>
> Signed-off-by: Sergey Balabanov <balabanovsv at ecotelecom.ru>
> ---
> lib/librte_eal/linuxapp/kni/kni_misc.c | 10 ++++++++++
> lib/librte_eal/linuxapp/kni/kni_net.c | 9 ---------
> 2 files changed, 10 insertions(+), 9 deletions(-)
>
> diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c
> b/lib/librte_eal/linuxapp/kni/kni_misc.c index 2e9fa89..61f83a0 100644
> --- a/lib/librte_eal/linuxapp/kni/kni_misc.c
> +++ b/lib/librte_eal/linuxapp/kni/kni_misc.c
> @@ -28,6 +28,7 @@
> #include <linux/pci.h>
> #include <linux/kthread.h>
> #include <linux/rwsem.h>
> +#include <linux/etherdevice.h> /* eth_type_trans */
>
> #include <exec-env/rte_kni_common.h>
> #include "kni_dev.h"
> @@ -465,6 +466,15 @@ kni_ioctl_create(unsigned int ioctl_num, unsigned long
> ioctl_param) if (pci)
> pci_dev_put(pci);
>
> + if (kni->lad_dev)
> + memcpy(net_dev->dev_addr, kni->lad_dev->dev_addr, ETH_ALEN);
> + else
> + /*
> + * Generate random mac address. eth_random_addr() is the newer
> + * version of generating mac address in linux kernel.
> + */
> + random_ether_addr(net_dev->dev_addr);
> +
> ret = register_netdev(net_dev);
> if (ret) {
> KNI_ERR("error %i registering device \"%s\"\n",
> diff --git a/lib/librte_eal/linuxapp/kni/kni_net.c
> b/lib/librte_eal/linuxapp/kni/kni_net.c index ab5add4..b50b4cf 100644
> --- a/lib/librte_eal/linuxapp/kni/kni_net.c
> +++ b/lib/librte_eal/linuxapp/kni/kni_net.c
> @@ -70,15 +70,6 @@ kni_net_open(struct net_device *dev)
> struct rte_kni_request req;
> struct kni_dev *kni = netdev_priv(dev);
>
> - if (kni->lad_dev)
> - memcpy(dev->dev_addr, kni->lad_dev->dev_addr, ETH_ALEN);
> - else
> - /*
> - * Generate random mac address. eth_random_addr() is the newer
> - * version of generating mac address in linux kernel.
> - */
> - random_ether_addr(dev->dev_addr);
> -
> netif_start_queue(dev);
>
> memset(&req, 0, sizeof(req));
