[RFC,2/6] net/i40e: set min and max MTU for i40e devices

Message ID 1550678275-4959-3-git-send-email-ian.stokes@intel.com
State Superseded, archived
Delegated to: Ferruh Yigit
Headers show
Series
  • ethdev: add min/max MTU to device info
Related show

Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Ian Stokes Feb. 20, 2019, 3:57 p.m.
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>
---
 drivers/net/i40e/i40e_ethdev.c | 2 ++
 1 file changed, 2 insertions(+)

Patch

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index dca61f03a..caab1624f 100644
--- 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 |