The gid_attrs directory is a dedicated kobj nested under the port,
construct/destruct it with its own pair of functions for
understandability. This is much more readable than having it weirdly
inlined out of order into the add_port() function.
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
---
drivers/infiniband/core/sysfs.c | 160 ++++++++++++++++++--------------
1 file changed, 89 insertions(+), 71 deletions(-)
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 114fecda97648e..d2a089a6f66639 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -1178,6 +1178,85 @@ struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev,
return ibdev->port_data[port_num].sysfs->hw_stats_data->stats;
}
+/*
+ * Create the sysfs:
+ * ibp0s9/ports/XX/gid_attrs/{ndevs,types}/YYY
+ * YYY is the gid table index in decimal
+ */
+static int setup_gid_attrs(struct ib_port *port,
+ const struct ib_port_attr *attr)
+{
+ struct gid_attr_group *gid_attr_group;
+ int ret;
+ int i;
+
+ gid_attr_group = kzalloc(sizeof(*gid_attr_group), GFP_KERNEL);
+ if (!gid_attr_group)
+ return -ENOMEM;
+
+ gid_attr_group->port = port;
+ ret = kobject_init_and_add(&gid_attr_group->kobj, &gid_attr_type,
+ &port->kobj, "gid_attrs");
+ if (ret)
+ goto err_put_gid_attrs;
+
+ gid_attr_group->ndev.name = "ndevs";
+ gid_attr_group->ndev.attrs =
+ alloc_group_attrs(show_port_gid_attr_ndev, attr->gid_tbl_len);
+ if (!gid_attr_group->ndev.attrs) {
+ ret = -ENOMEM;
+ goto err_put_gid_attrs;
+ }
+
+ ret = sysfs_create_group(&gid_attr_group->kobj, &gid_attr_group->ndev);
+ if (ret)
+ goto err_free_gid_ndev;
+
+ gid_attr_group->type.name = "types";
+ gid_attr_group->type.attrs = alloc_group_attrs(
+ show_port_gid_attr_gid_type, attr->gid_tbl_len);
+ if (!gid_attr_group->type.attrs) {
+ ret = -ENOMEM;
+ goto err_remove_gid_ndev;
+ }
+
+ ret = sysfs_create_group(&gid_attr_group->kobj, &gid_attr_group->type);
+ if (ret)
+ goto err_free_gid_type;
+
+ port->gid_attr_group = gid_attr_group;
+ return 0;
+
+err_free_gid_type:
+ for (i = 0; i < attr->gid_tbl_len; ++i)
+ kfree(gid_attr_group->type.attrs[i]);
+
+ kfree(gid_attr_group->type.attrs);
+ gid_attr_group->type.attrs = NULL;
+err_remove_gid_ndev:
+ sysfs_remove_group(&gid_attr_group->kobj, &gid_attr_group->ndev);
+err_free_gid_ndev:
+ for (i = 0; i < attr->gid_tbl_len; ++i)
+ kfree(gid_attr_group->ndev.attrs[i]);
+
+ kfree(gid_attr_group->ndev.attrs);
+ gid_attr_group->ndev.attrs = NULL;
+err_put_gid_attrs:
+ kobject_put(&gid_attr_group->kobj);
+ return ret;
+}
+
+static void destroy_gid_attrs(struct ib_port *port)
+{
+ struct gid_attr_group *gid_attr_group = port->gid_attr_group;
+
+ sysfs_remove_group(&gid_attr_group->kobj,
+ &gid_attr_group->ndev);
+ sysfs_remove_group(&gid_attr_group->kobj,
+ &gid_attr_group->type);
+ kobject_put(&gid_attr_group->kobj);
+}
+
static int add_port(struct ib_core_device *coredev, int port_num)
{
struct ib_device *device = rdma_device_to_ibdev(&coredev->dev);
@@ -1204,23 +1283,11 @@ static int add_port(struct ib_core_device *coredev, int port_num)
if (ret)
goto err_put;
- p->gid_attr_group = kzalloc(sizeof(*p->gid_attr_group), GFP_KERNEL);
- if (!p->gid_attr_group) {
- ret = -ENOMEM;
- goto err_put;
- }
-
- p->gid_attr_group->port = p;
- ret = kobject_init_and_add(&p->gid_attr_group->kobj, &gid_attr_type,
- &p->kobj, "gid_attrs");
- if (ret)
- goto err_put_gid_attrs;
-
if (device->ops.process_mad && is_full_dev) {
p->pma_table = get_counter_table(device, port_num);
ret = sysfs_create_group(&p->kobj, p->pma_table);
if (ret)
- goto err_put_gid_attrs;
+ goto err_put;
}
p->gid_group.name = "gids";
@@ -1234,37 +1301,11 @@ static int add_port(struct ib_core_device *coredev, int port_num)
if (ret)
goto err_free_gid;
- p->gid_attr_group->ndev.name = "ndevs";
- p->gid_attr_group->ndev.attrs = alloc_group_attrs(show_port_gid_attr_ndev,
- attr.gid_tbl_len);
- if (!p->gid_attr_group->ndev.attrs) {
- ret = -ENOMEM;
- goto err_remove_gid;
- }
-
- ret = sysfs_create_group(&p->gid_attr_group->kobj,
- &p->gid_attr_group->ndev);
- if (ret)
- goto err_free_gid_ndev;
-
- p->gid_attr_group->type.name = "types";
- p->gid_attr_group->type.attrs = alloc_group_attrs(show_port_gid_attr_gid_type,
- attr.gid_tbl_len);
- if (!p->gid_attr_group->type.attrs) {
- ret = -ENOMEM;
- goto err_remove_gid_ndev;
- }
-
- ret = sysfs_create_group(&p->gid_attr_group->kobj,
- &p->gid_attr_group->type);
- if (ret)
- goto err_free_gid_type;
-
if (attr.pkey_tbl_len) {
p->pkey_group = kzalloc(sizeof(*p->pkey_group), GFP_KERNEL);
if (!p->pkey_group) {
ret = -ENOMEM;
- goto err_remove_gid_type;
+ goto err_remove_gid;
}
p->pkey_group->name = "pkeys";
@@ -1290,11 +1331,14 @@ static int add_port(struct ib_core_device *coredev, int port_num)
if (ret && ret != -EOPNOTSUPP)
goto err_remove_pkey;
}
+ ret = setup_gid_attrs(p, &attr);
+ if (ret)
+ goto err_remove_stats;
if (device->ops.init_port && is_full_dev) {
ret = device->ops.init_port(device, port_num, &p->kobj);
if (ret)
- goto err_remove_stats;
+ goto err_remove_gid_attrs;
}
list_add_tail(&p->kobj.entry, &coredev->port_list);
@@ -1304,6 +1348,9 @@ static int add_port(struct ib_core_device *coredev, int port_num)
kobject_uevent(&p->kobj, KOBJ_ADD);
return 0;
+err_remove_gid_attrs:
+ destroy_gid_attrs(p);
+
err_remove_stats:
destroy_hw_port_stats(p);
@@ -1323,28 +1370,6 @@ static int add_port(struct ib_core_device *coredev, int port_num)
err_free_pkey_group:
kfree(p->pkey_group);
-err_remove_gid_type:
- sysfs_remove_group(&p->gid_attr_group->kobj,
- &p->gid_attr_group->type);
-
-err_free_gid_type:
- for (i = 0; i < attr.gid_tbl_len; ++i)
- kfree(p->gid_attr_group->type.attrs[i]);
-
- kfree(p->gid_attr_group->type.attrs);
- p->gid_attr_group->type.attrs = NULL;
-
-err_remove_gid_ndev:
- sysfs_remove_group(&p->gid_attr_group->kobj,
- &p->gid_attr_group->ndev);
-
-err_free_gid_ndev:
- for (i = 0; i < attr.gid_tbl_len; ++i)
- kfree(p->gid_attr_group->ndev.attrs[i]);
-
- kfree(p->gid_attr_group->ndev.attrs);
- p->gid_attr_group->ndev.attrs = NULL;
-
err_remove_gid:
sysfs_remove_group(&p->kobj, &p->gid_group);
@@ -1359,9 +1384,6 @@ static int add_port(struct ib_core_device *coredev, int port_num)
if (p->pma_table)
sysfs_remove_group(&p->kobj, p->pma_table);
-err_put_gid_attrs:
- kobject_put(&p->gid_attr_group->kobj);
-
err_put:
kobject_put(&p->kobj);
return ret;
@@ -1498,11 +1520,7 @@ void ib_free_port_attrs(struct ib_core_device *coredev)
if (port->pkey_group)
sysfs_remove_group(p, port->pkey_group);
sysfs_remove_group(p, &port->gid_group);
- sysfs_remove_group(&port->gid_attr_group->kobj,
- &port->gid_attr_group->ndev);
- sysfs_remove_group(&port->gid_attr_group->kobj,
- &port->gid_attr_group->type);
- kobject_put(&port->gid_attr_group->kobj);
+ destroy_gid_attrs(port);
kobject_put(p);
}
--
2.31.1
