lkml.org 
[lkml]   [2021]   [Jun]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH rdma-next v1 14/15] RDMA/core: Allow port_groups to be used with namespaces
Date
From: Jason Gunthorpe <jgg@nvidia.com>

Now that the port_groups data is being destroyed and managed by the core
code this restriction is no longer needed. All the ib_port_attrs are
compatible with the core's sysfs lifecycle.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/core/device.c | 10 ++++------
drivers/infiniband/core/sysfs.c | 17 ++++++-----------
2 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 2cbd77933ea5..92f224a97481 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -1698,13 +1698,11 @@ int ib_device_set_netns_put(struct sk_buff *skb,
}

/*
- * Currently supported only for those providers which support
- * disassociation and don't do port specific sysfs init. Once a
- * port_cleanup infrastructure is implemented, this limitation will be
- * removed.
+ * All the ib_clients, including uverbs, are reset when the namespace is
+ * changed and this cannot be blocked waiting for userspace to do
+ * something, so disassociation is mandatory.
*/
- if (!dev->ops.disassociate_ucontext || dev->ops.port_groups ||
- ib_devices_shared_netns) {
+ if (!dev->ops.disassociate_ucontext || ib_devices_shared_netns) {
ret = -EOPNOTSUPP;
goto ns_err;
}
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 09a2e1066df0..f42034fcf3d9 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -1236,11 +1236,9 @@ static struct ib_port *setup_port(struct ib_core_device *coredev, int port_num,
ret = sysfs_create_groups(&p->kobj, p->groups_list);
if (ret)
goto err_del;
- if (is_full_dev) {
- ret = sysfs_create_groups(&p->kobj, device->ops.port_groups);
- if (ret)
- goto err_groups;
- }
+ ret = sysfs_create_groups(&p->kobj, device->ops.port_groups);
+ if (ret)
+ goto err_groups;

list_add_tail(&p->kobj.entry, &coredev->port_list);
if (device->port_data && is_full_dev)
@@ -1257,16 +1255,13 @@ static struct ib_port *setup_port(struct ib_core_device *coredev, int port_num,
return ERR_PTR(ret);
}

-static void destroy_port(struct ib_core_device *coredev, struct ib_port *port)
+static void destroy_port(struct ib_port *port)
{
- bool is_full_dev = &port->ibdev->coredev == coredev;
-
if (port->ibdev->port_data &&
port->ibdev->port_data[port->port_num].sysfs == port)
port->ibdev->port_data[port->port_num].sysfs = NULL;
list_del(&port->kobj.entry);
- if (is_full_dev)
- sysfs_remove_groups(&port->kobj, port->ibdev->ops.port_groups);
+ sysfs_remove_groups(&port->kobj, port->ibdev->ops.port_groups);
sysfs_remove_groups(&port->kobj, port->groups_list);
kobject_del(&port->kobj);
kobject_put(&port->kobj);
@@ -1392,7 +1387,7 @@ void ib_free_port_attrs(struct ib_core_device *coredev)
struct ib_port *port = container_of(p, struct ib_port, kobj);

destroy_gid_attrs(port);
- destroy_port(coredev, port);
+ destroy_port(port);
}

kobject_put(coredev->ports_kobj);
--
2.31.1
\
 
 \ /
  Last update: 2021-06-07 10:19    [W:0.216 / U:0.996 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site