[RFC,3/6] net/i40e: set min and max MTU for i40e VF devices

Message ID 1550678275-4959-4-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State Superseded, archived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 VF
devices via the i40evf_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_vf.c | 2 ++
 1 file changed, 2 insertions(+)

Patch

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 7e4bd7314..add7b2223 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -2216,6 +2216,8 @@  i40evf_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 	dev_info->max_tx_queues = I40E_MAX_QP_NUM_PER_VF;
 	dev_info->min_rx_bufsize = I40E_BUF_SIZE_MIN;
 	dev_info->max_rx_pktlen = I40E_FRAME_SIZE_MAX;
+	dev_info->max_mtu = dev_info->max_rx_pktlen - I40E_ETH_OVERHEAD;
+	dev_info->min_mtu = ETHER_MIN_MTU;
 	dev_info->hash_key_size = (I40E_VFQF_HKEY_MAX_INDEX + 1) * sizeof(uint32_t);
 	dev_info->reta_size = ETH_RSS_RETA_SIZE_64;
 	dev_info->flow_type_rss_offloads = vf->adapter->flow_types_mask;