diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_main.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index bd07f02cf02b..7a4ed9d3d844 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -195,7 +195,7 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu) return 0; } - if (new_mtu > IPOIB_PACKET_SIZE - IPOIB_ENCAP_LEN) + if (new_mtu > IPOIB_UD_MTU(priv->max_ib_mtu)) return -EINVAL; priv->admin_mtu = new_mtu; @@ -971,10 +971,6 @@ static void ipoib_setup(struct net_device *dev) NETIF_F_LLTX | NETIF_F_HIGHDMA); - /* MTU will be reset when mcast join happens */ - dev->mtu = IPOIB_PACKET_SIZE - IPOIB_ENCAP_LEN; - priv->mcast_mtu = priv->admin_mtu = dev->mtu; - memcpy(dev->broadcast, ipv4_bcast_addr, INFINIBAND_ALEN); netif_carrier_off(dev); @@ -1107,6 +1103,7 @@ static struct net_device *ipoib_add_port(const char *format, { struct ipoib_dev_priv *priv; struct ib_device_attr *device_attr; + struct ib_port_attr attr; int result = -ENOMEM; priv = ipoib_intf_alloc(format); @@ -1115,6 +1112,18 @@ static struct net_device *ipoib_add_port(const char *format, SET_NETDEV_DEV(priv->dev, hca->dma_device); + if (!ib_query_port(hca, port, &attr)) + priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu); + else { + printk(KERN_WARNING "%s: ib_query_port %d failed\n", + hca->name, port); + goto device_init_failed; + } + + /* MTU will be reset when mcast join happens */ + priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu); + priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu; + result = ib_query_pkey(hca, port, 0, &priv->pkey); if (result) { printk(KERN_WARNING "%s: ib_query_pkey port %d failed (ret = %d)\n", |