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authorJarod Wilson <jarod@redhat.com>2016-10-17 22:54:17 +0300
committerDavid S. Miller <davem@davemloft.net>2016-10-18 18:34:22 +0300
commit44770e1180decf9b483d9b537fdad385a4fbf462 (patch)
tree97dff06ab97f91387a88de2dfb3c6d959609d321 /drivers/net/ethernet/calxeda
parent1281a2c7b814cf5ccdafa49c1410dd5092da0542 (diff)
downloadlinux-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/calxeda')
-rw-r--r--drivers/net/ethernet/calxeda/xgmac.c20
1 files changed, 5 insertions, 15 deletions
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))