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IPoIB: Set netdev offload features properly for child (VLAN) interfaces

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Child devices were created without any offload features set, fix this by
moving the code that computes the features into generic function which is
now called through non-child and child device creation.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>

-- v1 has a bug where the 'result' flag in ipoib_vlan_add may be used uninitialized
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Or Gerlitz 2008-10-22 15:49:49 -07:00 committed by Roland Dreier
parent 70c9c0db54
commit 83bb63f62b
3 changed files with 44 additions and 28 deletions
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1
drivers/infiniband/ulp/ipoib/ipoib.h
View file

@ -507,6 +507,7 @@ int ipoib_pkey_dev_delay_open(struct net_device *dev);
void ipoib_drain_cq(struct net_device *dev);
void ipoib_set_ethtool_ops(struct net_device *dev);
int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
#ifdef CONFIG_INFINIBAND_IPOIB_CM

67
drivers/infiniband/ulp/ipoib/ipoib_main.c
View file

@ -1173,11 +1173,48 @@ int ipoib_add_pkey_attr(struct net_device *dev)
return device_create_file(&dev->dev, &dev_attr_pkey);
}
int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca)
{
struct ib_device_attr *device_attr;
int result = -ENOMEM;
device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
if (!device_attr) {
printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
hca->name, sizeof *device_attr);
return result;
}
result = ib_query_device(hca, device_attr);
if (result) {
printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
hca->name, result);
kfree(device_attr);
return result;
}
priv->hca_caps = device_attr->device_cap_flags;
kfree(device_attr);
if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
set_bit(IPOIB_FLAG_CSUM, &priv->flags);
priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
}
if (lro)
priv->dev->features |= NETIF_F_LRO;
if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO)
priv->dev->features |= NETIF_F_TSO;
return 0;
}
static struct net_device *ipoib_add_port(const char *format,
struct ib_device *hca, u8 port)
{
struct ipoib_dev_priv *priv;
struct ib_device_attr *device_attr;
struct ib_port_attr attr;
int result = -ENOMEM;
@ -1206,31 +1243,8 @@ static struct net_device *ipoib_add_port(const char *format,
goto device_init_failed;
}
device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
if (!device_attr) {
printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
hca->name, sizeof *device_attr);
if (ipoib_set_dev_features(priv, hca))
goto device_init_failed;
}
result = ib_query_device(hca, device_attr);
if (result) {
printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
hca->name, result);
kfree(device_attr);
goto device_init_failed;
}
priv->hca_caps = device_attr->device_cap_flags;
kfree(device_attr);
if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
set_bit(IPOIB_FLAG_CSUM, &priv->flags);
priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
}
if (lro)
priv->dev->features |= NETIF_F_LRO;
/*
* Set the full membership bit, so that we join the right
@ -1266,9 +1280,6 @@ static struct net_device *ipoib_add_port(const char *format,
goto event_failed;
}
if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO)
priv->dev->features |= NETIF_F_TSO;
result = register_netdev(priv->dev);
if (result) {
printk(KERN_WARNING "%s: couldn't register ipoib port %d; error %d\n",

4
drivers/infiniband/ulp/ipoib/ipoib_vlan.c
View file

@ -93,6 +93,10 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu;
set_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags);
result = ipoib_set_dev_features(priv, ppriv->ca);
if (result)
goto device_init_failed;
priv->pkey = pkey;
memcpy(priv->dev->dev_addr, ppriv->dev->dev_addr, INFINIBAND_ALEN);