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/calxeda/xgmac.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) (limited to 'drivers/net/ethernet/calxeda') diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c index 63efa0dc45ba..6e723662ee69 100644 --- a/drivers/net/ethernet/calxeda/xgmac.c +++ b/drivers/net/ethernet/calxeda/xgmac.c @@ -394,7 +394,7 @@ struct xgmac_priv { }; /* XGMAC Configuration Settings */ -#define MAX_MTU 9000 +#define XGMAC_MAX_MTU 9000 #define PAUSE_TIME 0x400 #define DMA_RX_RING_SZ 256 @@ -1360,20 +1360,6 @@ out: */ static int xgmac_change_mtu(struct net_device *dev, int new_mtu) { - struct xgmac_priv *priv = netdev_priv(dev); - int old_mtu; - - if ((new_mtu < 46) || (new_mtu > MAX_MTU)) { - netdev_err(priv->dev, "invalid MTU, max MTU is: %d\n", MAX_MTU); - return -EINVAL; - } - - old_mtu = dev->mtu; - - /* return early if the buffer sizes will not change */ - if (old_mtu == new_mtu) - return 0; - /* Stop everything, get ready to change the MTU */ if (!netif_running(dev)) return 0; @@ -1804,6 +1790,10 @@ static int xgmac_probe(struct platform_device *pdev) ndev->features |= ndev->hw_features; ndev->priv_flags |= IFF_UNICAST_FLT; + /* MTU range: 46 - 9000 */ + ndev->min_mtu = ETH_ZLEN - ETH_HLEN; + ndev->max_mtu = XGMAC_MAX_MTU; + /* Get the MAC address */ xgmac_get_mac_addr(priv->base, ndev->dev_addr, 0); if (!is_valid_ether_addr(ndev->dev_addr)) -- cgit v1.2.3-70-g09d2