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RDMA/cma: Consider net namespace while leaving multicast group 

When sending multicast leave request, consider the net ns in which this
cm_id is created.

Code was duplicated in cma_leave_mc_groups() and rdma_leave_multicast(),
which is now done using a helper function cma_leave_roce_mc_group().

Fixes: bee3c3c918 ("IB/cma: Join and leave multicast groups with IGMP")
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2018-06-21 15:31:24 +03:00 committed by Jason Gunthorpe
parent 321d7863ac
commit 8814567892
1 changed files with 24 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
drivers/infiniband/core/cma.c
View File

@ -1629,6 +1629,28 @@ static void cma_release_port(struct rdma_id_private *id_priv)
mutex_unlock(&lock);
}
static void cma_leave_roce_mc_group(struct rdma_id_private *id_priv,
struct cma_multicast *mc)
{
if (mc->igmp_joined) {
struct rdma_dev_addr *dev_addr =
&id_priv->id.route.addr.dev_addr;
struct net_device *ndev = NULL;
if (dev_addr->bound_dev_if)
ndev = dev_get_by_index(dev_addr->net,
dev_addr->bound_dev_if);
if (ndev) {
cma_igmp_send(ndev,
&mc->multicast.ib->rec.mgid,
false);
dev_put(ndev);
}
mc->igmp_joined = false;
}
kref_put(&mc->mcref, release_mc);
}
static void cma_leave_mc_groups(struct rdma_id_private *id_priv)
{
struct cma_multicast *mc;
@ -1642,22 +1664,7 @@ static void cma_leave_mc_groups(struct rdma_id_private *id_priv)
ib_sa_free_multicast(mc->multicast.ib);
kfree(mc);
} else {
if (mc->igmp_joined) {
struct rdma_dev_addr *dev_addr =
&id_priv->id.route.addr.dev_addr;
struct net_device *ndev = NULL;
if (dev_addr->bound_dev_if)
ndev = dev_get_by_index(&init_net,
dev_addr->bound_dev_if);
if (ndev) {
cma_igmp_send(ndev,
&mc->multicast.ib->rec.mgid,
false);
dev_put(ndev);
}
}
kref_put(&mc->mcref, release_mc);
cma_leave_roce_mc_group(id_priv, mc);
}
}
}
@ -4268,23 +4275,7 @@ void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr)
ib_sa_free_multicast(mc->multicast.ib);
kfree(mc);
} else if (rdma_protocol_roce(id->device, id->port_num)) {
if (mc->igmp_joined) {
struct rdma_dev_addr *dev_addr =
&id->route.addr.dev_addr;
struct net_device *ndev = NULL;
if (dev_addr->bound_dev_if)
ndev = dev_get_by_index(dev_addr->net,
dev_addr->bound_dev_if);
if (ndev) {
cma_igmp_send(ndev,
&mc->multicast.ib->rec.mgid,
false);
dev_put(ndev);
}
mc->igmp_joined = false;
}
kref_put(&mc->mcref, release_mc);
cma_leave_roce_mc_group(id_priv, mc);
}
return;
}