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)); -- 2.1.4