diff options
author | Jarod Wilson <jarod@redhat.com> | 2016-10-17 22:54:17 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2016-10-18 18:34:22 +0300 |
commit | 44770e1180decf9b483d9b537fdad385a4fbf462 (patch) | |
tree | 97dff06ab97f91387a88de2dfb3c6d959609d321 /drivers/net/ethernet/micrel/ksz884x.c | |
parent | 1281a2c7b814cf5ccdafa49c1410dd5092da0542 (diff) | |
download | linux-44770e1180decf9b483d9b537fdad385a4fbf462.tar.xz |
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 <mark.einon@gmail.com>
CC: Vince Bridgers <vbridger@opensource.altera.com>
CC: Rasesh Mody <rasesh.mody@qlogic.com>
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Santosh Raspatur <santosh@chelsio.com>
CC: Hariprasad S <hariprasad@chelsio.com>
CC: Christian Benvenuti <benve@cisco.com>
CC: Sujith Sankar <ssujith@cisco.com>
CC: Govindarajulu Varadarajan <_govind@gmx.com>
CC: Neel Patel <neepatel@cisco.com>
CC: Claudiu Manoil <claudiu.manoil@freescale.com>
CC: Yisen Zhuang <yisen.zhuang@huawei.com>
CC: Salil Mehta <salil.mehta@huawei.com>
CC: Hyong-Youb Kim <hykim@myri.com>
CC: Jakub Kicinski <jakub.kicinski@netronome.com>
CC: Olof Johansson <olof@lixom.net>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Byungho An <bh74.an@samsung.com>
CC: Girish K S <ks.giri@samsung.com>
CC: Vipul Pandya <vipul.pandya@samsung.com>
CC: Giuseppe Cavallaro <peppe.cavallaro@st.com>
CC: Alexandre Torgue <alexandre.torgue@st.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Wingman Kwok <w-kwok2@ti.com>
CC: Murali Karicheri <m-karicheri2@ti.com>
CC: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/micrel/ksz884x.c')
-rw-r--r-- | drivers/net/ethernet/micrel/ksz884x.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c index 280e761d3a97..97f6ef1fa7d0 100644 --- a/drivers/net/ethernet/micrel/ksz884x.c +++ b/drivers/net/ethernet/micrel/ksz884x.c @@ -5807,24 +5807,19 @@ static int netdev_change_mtu(struct net_device *dev, int new_mtu) if (hw->dev_count > 1) if (dev != hw_priv->dev) return 0; - if (new_mtu < 60) - return -EINVAL; - if (dev->mtu != new_mtu) { - hw_mtu = new_mtu + ETHERNET_HEADER_SIZE + 4; - if (hw_mtu > MAX_RX_BUF_SIZE) - return -EINVAL; - if (hw_mtu > REGULAR_RX_BUF_SIZE) { - hw->features |= RX_HUGE_FRAME; - hw_mtu = MAX_RX_BUF_SIZE; - } else { - hw->features &= ~RX_HUGE_FRAME; - hw_mtu = REGULAR_RX_BUF_SIZE; - } - hw_mtu = (hw_mtu + 3) & ~3; - hw_priv->mtu = hw_mtu; - dev->mtu = new_mtu; + hw_mtu = new_mtu + ETHERNET_HEADER_SIZE + 4; + if (hw_mtu > REGULAR_RX_BUF_SIZE) { + hw->features |= RX_HUGE_FRAME; + hw_mtu = MAX_RX_BUF_SIZE; + } else { + hw->features &= ~RX_HUGE_FRAME; + hw_mtu = REGULAR_RX_BUF_SIZE; } + hw_mtu = (hw_mtu + 3) & ~3; + hw_priv->mtu = hw_mtu; + dev->mtu = new_mtu; + return 0; } @@ -7099,6 +7094,12 @@ static int pcidev_init(struct pci_dev *pdev, const struct pci_device_id *id) dev->netdev_ops = &netdev_ops; dev->ethtool_ops = &netdev_ethtool_ops; + + /* MTU range: 60 - 1894 */ + dev->min_mtu = ETH_ZLEN; + dev->max_mtu = MAX_RX_BUF_SIZE - + (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); + if (register_netdev(dev)) goto pcidev_init_reg_err; port_set_power_saving(port, true); |