From 44770e1180decf9b483d9b537fdad385a4fbf462 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Mon, 17 Oct 2016 15:54:17 -0400 Subject: ethernet: use core min/max MTU checking et131x: min_mtu 64, max_mtu 9216 altera_tse: min_mtu 64, max_mtu 1500 amd8111e: min_mtu 60, max_mtu 9000 bnad: min_mtu 46, max_mtu 9000 macb: min_mtu 68, max_mtu 1500 or 10240 depending on hardware capability xgmac: min_mtu 46, max_mtu 9000 cxgb2: min_mtu 68, max_mtu 9582 (pm3393) or 9600 (vsc7326) enic: min_mtu 68, max_mtu 9000 gianfar: min_mtu 50, max_mu 9586 hns_enet: min_mtu 68, max_mtu 9578 (v1) or 9706 (v2) ksz884x: min_mtu 60, max_mtu 1894 myri10ge: min_mtu 68, max_mtu 9000 natsemi: min_mtu 64, max_mtu 2024 nfp: min_mtu 68, max_mtu hardware-specific forcedeth: min_mtu 64, max_mtu 1500 or 9100, depending on hardware pch_gbe: min_mtu 46, max_mtu 10300 pasemi_mac: min_mtu 64, max_mtu 9000 qcaspi: min_mtu 46, max_mtu 1500 - remove qcaspi_netdev_change_mtu as it is now redundant rocker: min_mtu 68, max_mtu 9000 sxgbe: min_mtu 68, max_mtu 9000 stmmac: min_mtu 46, max_mtu depends on hardware tehuti: min_mtu 60, max_mtu 16384 - driver had no max mtu checking, but product docs say 16k jumbo packets are supported by the hardware netcp: min_mtu 68, max_mtu 9486 - remove netcp_ndo_change_mtu as it is now redundant via-velocity: min_mtu 64, max_mtu 9000 octeon: min_mtu 46, max_mtu 65370 CC: netdev@vger.kernel.org CC: Mark Einon CC: Vince Bridgers CC: Rasesh Mody CC: Nicolas Ferre CC: Santosh Raspatur CC: Hariprasad S CC: Christian Benvenuti CC: Sujith Sankar CC: Govindarajulu Varadarajan <_govind@gmx.com> CC: Neel Patel CC: Claudiu Manoil CC: Yisen Zhuang CC: Salil Mehta CC: Hyong-Youb Kim CC: Jakub Kicinski CC: Olof Johansson CC: Jiri Pirko CC: Byungho An CC: Girish K S CC: Vipul Pandya CC: Giuseppe Cavallaro CC: Alexandre Torgue CC: Andy Gospodarek CC: Wingman Kwok CC: Murali Karicheri CC: Francois Romieu Signed-off-by: Jarod Wilson Signed-off-by: David S. Miller --- drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers/net/ethernet/oki-semi') diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 3cd87a41ac92..d461f419948e 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -2260,16 +2260,10 @@ static int pch_gbe_set_mac(struct net_device *netdev, void *addr) static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu) { struct pch_gbe_adapter *adapter = netdev_priv(netdev); - int max_frame; + int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; unsigned long old_rx_buffer_len = adapter->rx_buffer_len; int err; - max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; - if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) || - (max_frame > PCH_GBE_MAX_JUMBO_FRAME_SIZE)) { - netdev_err(netdev, "Invalid MTU setting\n"); - return -EINVAL; - } if (max_frame <= PCH_GBE_FRAME_SIZE_2048) adapter->rx_buffer_len = PCH_GBE_FRAME_SIZE_2048; else if (max_frame <= PCH_GBE_FRAME_SIZE_4096) @@ -2633,6 +2627,11 @@ static int pch_gbe_probe(struct pci_dev *pdev, netdev->features = netdev->hw_features; pch_gbe_set_ethtool_ops(netdev); + /* MTU range: 46 - 10300 */ + netdev->min_mtu = ETH_ZLEN - ETH_HLEN; + netdev->max_mtu = PCH_GBE_MAX_JUMBO_FRAME_SIZE - + (ETH_HLEN + ETH_FCS_LEN); + pch_gbe_mac_load_mac_addr(&adapter->hw); pch_gbe_mac_reset_hw(&adapter->hw); -- cgit v1.2.3