From mboxrd@z Thu Jan 1 00:00:00 1970 From: Amir Vadai Subject: [PATCH net-next 3/3] net/mlx4_en: set correct MTU in SRIOV Date: Thu, 11 Apr 2013 14:56:42 +0300 Message-ID: <1365681402-19445-4-git-send-email-amirv@mellanox.com> References: <1365681402-19445-1-git-send-email-amirv@mellanox.com> Cc: netdev@vger.kernel.org, Or Gerlitz , Amir Vadai , Eugenia Emantayev , Eugenia Emantayev , Jack Morgenstein To: "David S. Miller" Return-path: Received: from eu1sys200aog104.obsmtp.com ([207.126.144.117]:44044 "EHLO eu1sys200aog104.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933510Ab3DKMAL (ORCPT ); Thu, 11 Apr 2013 08:00:11 -0400 In-Reply-To: <1365681402-19445-1-git-send-email-amirv@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Eugenia Emantayev 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: Eugenia Emantayev Signed-off-by: Jack Morgenstein Signed-off-by: Amir Vadai --- drivers/net/ethernet/mellanox/mlx4/port.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index 10c57c8..4b6aad3 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -32,6 +32,7 @@ #include #include +#include #include #include @@ -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]) -- 1.7.8.2