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authorJason Gunthorpe <jgg@nvidia.com>2021-06-11 19:00:28 +0300
committerJason Gunthorpe <jgg@nvidia.com>2021-06-16 20:58:30 -0300
commit054239f45c6346025afe252fe6f470a4093f61f9 (patch)
tree8008f978e18f3ee883b9037a20edf422e78f5c18 /include/rdma
parentd89eb509aaa36a08f983eac58b9fccd61ff3d375 (diff)
RDMA/core: Expose the ib port sysfs attribute machinery
Other things outside the core code are creating attributes against the port. This patch exposes the basic machinery to do this. The ib_port_attribute type allows creating groups of attributes attatched to the port and comes with the usual machinery to do this. Link: https://lore.kernel.org/r/5c4aeae57f6fa7c59a1d6d1c5506069516ae9bbf.1623427137.git.leonro@nvidia.com Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_sysfs.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/rdma/ib_sysfs.h b/include/rdma/ib_sysfs.h
new file mode 100644
index 000000000000..f869d0e4fd30
--- /dev/null
+++ b/include/rdma/ib_sysfs.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * Copyright (c) 2021 Mellanox Technologies Ltd. All rights reserved.
+ */
+#ifndef DEF_RDMA_IB_SYSFS_H
+#define DEF_RDMA_IB_SYSFS_H
+
+#include <linux/sysfs.h>
+
+struct ib_device;
+
+struct ib_port_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct ib_device *ibdev, u32 port_num,
+ struct ib_port_attribute *attr, char *buf);
+ ssize_t (*store)(struct ib_device *ibdev, u32 port_num,
+ struct ib_port_attribute *attr, const char *buf,
+ size_t count);
+};
+
+#define IB_PORT_ATTR_RW(_name) \
+ struct ib_port_attribute ib_port_attr_##_name = __ATTR_RW(_name)
+
+#define IB_PORT_ATTR_ADMIN_RW(_name) \
+ struct ib_port_attribute ib_port_attr_##_name = \
+ __ATTR_RW_MODE(_name, 0600)
+
+#define IB_PORT_ATTR_RO(_name) \
+ struct ib_port_attribute ib_port_attr_##_name = __ATTR_RO(_name)
+
+#define IB_PORT_ATTR_WO(_name) \
+ struct ib_port_attribute ib_port_attr_##_name = __ATTR_WO(_name)
+
+int ib_port_sysfs_create_groups(struct ib_device *ibdev, u32 port_num,
+ const struct attribute_group **groups);
+void ib_port_sysfs_remove_groups(struct ib_device *ibdev, u32 port_num,
+ const struct attribute_group **groups);
+struct ib_device *ib_port_sysfs_get_ibdev_kobj(struct kobject *kobj,
+ u32 *port_num);
+
+#endif