From: Wenzhuo Lu <wenzhuo.lu@intel.com>
To: dev@dpdk.org
Cc: Wenzhuo Lu <wenzhuo.lu@intel.com>
Subject: [dpdk-dev] [PATCH] net/i40e: consider QinQ when setting MTU
Date: Fri, 28 Apr 2017 09:55:23 +0800 [thread overview]
Message-ID: <1493344523-58766-1-git-send-email-wenzhuo.lu@intel.com> (raw)
When counting max packet length from MTU, count
VLAN tag length twice for QinQ packets.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 2 +-
drivers/net/i40e/i40e_ethdev_vf.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 3fa25dc..74041ae 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -10593,7 +10593,7 @@ static void i40e_set_default_mac_addr(struct rte_eth_dev *dev,
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
struct rte_eth_dev_data *dev_data = pf->dev_data;
uint32_t frame_size = mtu + ETHER_HDR_LEN
- + ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE;
+ + ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE * 2;
int ret = 0;
/* check if mtu is within the allowed range */
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index cb34023..ac81546 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -2688,7 +2688,7 @@ static int eth_i40evf_pci_remove(struct rte_pci_device *pci_dev)
struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
struct rte_eth_dev_data *dev_data = vf->dev_data;
uint32_t frame_size = mtu + ETHER_HDR_LEN
- + ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE;
+ + ETHER_CRC_LEN + I40E_VLAN_TAG_SIZE * 2;
int ret = 0;
/* check if mtu is within the allowed range */
--
1.9.3
next reply other threads:[~2017-04-28 1:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 1:55 Wenzhuo Lu [this message]
2017-04-28 5:55 ` Ferruh Yigit
2017-04-28 8:27 ` Wu, Jingjing
2017-04-28 8:30 ` Lu, Wenzhuo
2017-04-28 12:38 ` Ferruh Yigit
2017-05-02 1:25 ` Lu, Wenzhuo
2017-05-02 1:51 ` [dpdk-dev] [PATCH v2] " Wenzhuo Lu
2017-05-05 15:24 ` Thomas Monjalon
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