net/i40e: fix port start during config restore

If configuring VF promiscuous mode is not supported, return '-ENOTSUP'
error code in '.promiscuous_enable/disable' dev_ops.

This is to fix the port start during config restore, where if
'.promiscuous_enable/disable' dev_ops exists and return any value other
than '-ENOTSUP', start will fail.

Same is done for '.allmulticast_enable/disable' dev_ops.

Fixes: ddc7cb0d9453 ("net/i40e: re-program promiscuous mode on VF interface")
Cc: stable@dpdk.org
Signed-off-by: Xiao Zhang <xiao.zhang@intel.com>
Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index c34f520..244397e 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -2191,6 +2191,8 @@ i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev)
        ret = i40evf_config_promisc(dev, 1, vf->promisc_multicast_enabled);
        if (ret == 0)
                vf->promisc_unicast_enabled = TRUE;
+       else if (ret == I40E_NOT_SUPPORTED)
+               ret = -ENOTSUP;
        else
                ret = -EAGAIN;
 
@@ -2206,6 +2208,8 @@ i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev)
        ret = i40evf_config_promisc(dev, 0, vf->promisc_multicast_enabled);
        if (ret == 0)
                vf->promisc_unicast_enabled = FALSE;
+       else if (ret == I40E_NOT_SUPPORTED)
+               ret = -ENOTSUP;
        else
                ret = -EAGAIN;
 
@@ -2221,6 +2225,8 @@ i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev)
        ret = i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 1);
        if (ret == 0)
                vf->promisc_multicast_enabled = TRUE;
+       else if (ret == I40E_NOT_SUPPORTED)
+               ret = -ENOTSUP;
        else
                ret = -EAGAIN;
 
@@ -2236,6 +2242,8 @@ i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev)
        ret = i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 0);
        if (ret == 0)
                vf->promisc_multicast_enabled = FALSE;
+       else if (ret == I40E_NOT_SUPPORTED)
+               ret = -ENOTSUP;
        else
                ret = -EAGAIN;