net/i40e: set min and max MTU

This commit sets the min and max supported MTU values for i40e devices
via the i40e_dev_info_get() function. Min MTU supported is set to
ETHER_MIN_MTU and max mtu is calculated as the max packet length
supported minus the transport overhead.

Signed-off-by: Ian Stokes <ian.stokes@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 3815aef..891bdc0 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -3499,6 +3499,8 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        dev_info->max_rx_pktlen = I40E_FRAME_SIZE_MAX;
        dev_info->max_mac_addrs = vsi->max_macaddrs;
        dev_info->max_vfs = pci_dev->max_vfs;
+       dev_info->max_mtu = dev_info->max_rx_pktlen - I40E_ETH_OVERHEAD;
+       dev_info->min_mtu = ETHER_MIN_MTU;
        dev_info->rx_queue_offload_capa = 0;
        dev_info->rx_offload_capa =
                DEV_RX_OFFLOAD_VLAN_STRIP |