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Commit c59fec20 authored by Eugenia Emantayev's avatar Eugenia Emantayev Committed by David S. Miller
Browse files

net/mlx4_en: set correct MTU in SRIOV 



When setting MTU in SRIOV mode add ETH, VLAN and FCS header length
to the maximum MTU obtained from QUERY_DEV_CAP.

Signed-off-by: default avatarEugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.com>
Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fab1e24a

drivers/net/ethernet/mellanox/mlx4/port.c

+3 −1
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 


#include <linux/errno.h>

#include <linux/if_ether.h>

#include <linux/if_vlan.h>

#include <linux/export.h>



#include <linux/mlx4/cmd.h>
@@ -517,7 +518,8 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod, 
			/* Mtu is configured as the max MTU among all the

			 * the functions on the port. */

			mtu = be16_to_cpu(gen_context->mtu);

			mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port]);

			mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port] +

				    ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);

			prev_mtu = slave_st->mtu[port];

			slave_st->mtu[port] = mtu;

			if (mtu > master->max_mtu[port])