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authorJesse Brandeburg <jesse.brandeburg@intel.com>2014-04-23 04:50:05 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2014-06-05 01:58:31 -0700
commit61a46a4c079bc48f8b1c91d13436c71303dc1335 (patch)
tree221b169e6cb190e456f28f9a764802ba8341b71b /drivers/net/ethernet/intel/i40e/i40e_main.c
parenti40e/i40evf: remove unused RX_LRO define (diff)
downloadlinux-dev-61a46a4c079bc48f8b1c91d13436c71303dc1335.tar.xz
linux-dev-61a46a4c079bc48f8b1c91d13436c71303dc1335.zip
i40e: clamp jumbo frame size
The driver was allowing the user to set larger size MTU than the hardware was being configured to support. The driver was already using VLAN_HLEN when setting the hardware max receivable frame size, so just add it to the netdev MTU set entry point as well. Change-ID: Ie20e2a35d04f8c411253e255bea79ca69aaeaea3 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to '')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index cef3db44301e..cf67cf45a049 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1698,7 +1698,7 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf)
static int i40e_change_mtu(struct net_device *netdev, int new_mtu)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
- int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
+ int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
struct i40e_vsi *vsi = np->vsi;
/* MTU < 68 is an error and causes problems on some kernels */