Commit eba87609 authored by Shannon Nelson's avatar Shannon Nelson Committed by David S. Miller
Browse files

ionic: set MTU floor at ETH_MIN_MTU 



The NIC might tell us its minimum MTU, but let's be sure not
to use something smaller than ETH_MIN_MTU.

Signed-off-by: default avatarShannon Nelson <snelson@pensando.io>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 161e3106

drivers/net/ethernet/pensando/ionic/ionic_lif.c

+2 −1
Original line number Diff line number Diff line
@@ -2079,7 +2079,8 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index 
	lif->identity = lid;

	lif->lif_type = IONIC_LIF_TYPE_CLASSIC;

	ionic_lif_identify(ionic, lif->lif_type, lif->identity);

	lif->netdev->min_mtu = le32_to_cpu(lif->identity->eth.min_frame_size);

	lif->netdev->min_mtu = max_t(unsigned int, ETH_MIN_MTU,

				     le32_to_cpu(lif->identity->eth.min_frame_size));

	lif->netdev->max_mtu =

		le32_to_cpu(lif->identity->eth.max_frame_size) - ETH_HLEN - VLAN_HLEN;