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RDMA/ipoib: Set rtnl_link_ops for ipoib interfaces 

Report the "ipoib pkey", "mode" and "umcast" netlink attributes for every
IPoiB interface type, not just children created with 'ip link add'.

After setting the rtnl_link_ops for the parent interface, implement the
dellink() callback to block users from trying to remove it.

Fixes: 862096a8bb ("IB/ipoib: Add more rtnl_link_ops callbacks")
Link: https://lore.kernel.org/r/20201004132948.26669-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
zero-sugar-mainline-defconfig
Kamal Heib 2020-10-04 16:29:48 +03:00 committed by Jason Gunthorpe
parent 9f85cbe50a
commit 5ce2dced8e
3 changed files with 15 additions and 0 deletions
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2
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -2477,6 +2477,8 @@ static struct net_device *ipoib_add_port(const char *format,
/* call event handler to ensure pkey in sync */
queue_work(ipoib_workqueue, &priv->flush_heavy);
ndev->rtnl_link_ops = ipoib_get_link_ops();
result = register_netdev(ndev);
if (result) {
pr_warn("%s: couldn't register ipoib port %d; error %d\n",

11
drivers/infiniband/ulp/ipoib/ipoib_netlink.c
View File

@ -144,6 +144,16 @@ static int ipoib_new_child_link(struct net *src_net, struct net_device *dev,
return 0;
}
static void ipoib_del_child_link(struct net_device *dev, struct list_head *head)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
if (!priv->parent)
return;
unregister_netdevice_queue(dev, head);
}
static size_t ipoib_get_size(const struct net_device *dev)
{
return nla_total_size(2) + /* IFLA_IPOIB_PKEY */
@ -158,6 +168,7 @@ static struct rtnl_link_ops ipoib_link_ops __read_mostly = {
.priv_size = sizeof(struct ipoib_dev_priv),
.setup = ipoib_setup_common,
.newlink = ipoib_new_child_link,
.dellink = ipoib_del_child_link,
.changelink = ipoib_changelink,
.get_size = ipoib_get_size,
.fill_info = ipoib_fill_info,

2
drivers/infiniband/ulp/ipoib/ipoib_vlan.c
View File

@ -195,6 +195,8 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
}
priv = ipoib_priv(ndev);
ndev->rtnl_link_ops = ipoib_get_link_ops();
result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD);
if (result && ndev->reg_state == NETREG_UNINITIALIZED)