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authorAlexander Sverdlin <alexander.sverdlin@nokia.com>2019-11-08 10:00:44 +0000
committerDavid S. Miller <davem@davemloft.net>2019-11-08 11:18:40 -0800
commite4dd5608033efe7b6030cde359bfdbaeb73bc22d (patch)
treec02b96a9ae264744f771fe8de29b663021fcf690 /drivers/net/ethernet/cavium
parentipv4: Fix table id reference in fib_sync_down_addr (diff)
downloadlinux-dev-e4dd5608033efe7b6030cde359bfdbaeb73bc22d.tar.xz
linux-dev-e4dd5608033efe7b6030cde359bfdbaeb73bc22d.zip
net: ethernet: octeon_mgmt: Account for second possible VLAN header
Octeon's input ring-buffer entry has 14 bits-wide size field, so to account for second possible VLAN header max_mtu must be further reduced. Fixes: 109cc16526c6d ("ethernet/cavium: use core min/max MTU checking") Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium')
-rw-r--r--drivers/net/ethernet/cavium/octeon/octeon_mgmt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
index 0e5de88fd6e8..cdd7e5da4a74 100644
--- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
@@ -1499,7 +1499,7 @@ static int octeon_mgmt_probe(struct platform_device *pdev)
netdev->ethtool_ops = &octeon_mgmt_ethtool_ops;
netdev->min_mtu = 64 - OCTEON_MGMT_RX_HEADROOM;
- netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM;
+ netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM - VLAN_HLEN;
mac = of_get_mac_address(pdev->dev.of_node);