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-rw-r--r--include/rdma/ib_cache.h117
1 files changed, 117 insertions, 0 deletions
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
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+++ b/include/rdma/ib_cache.h
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+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2004 Topspin Communications. All rights reserved.
+ * Copyright (c) 2005 Intel Corporation. All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ */
+
+#ifndef _IB_CACHE_H
+#define _IB_CACHE_H
+
+#include <rdma/ib_verbs.h>
+
+int rdma_query_gid(struct ib_device *device, u8 port_num, int index,
+ union ib_gid *gid);
+void *rdma_read_gid_hw_context(const struct ib_gid_attr *attr);
+const struct ib_gid_attr *rdma_find_gid(struct ib_device *device,
+ const union ib_gid *gid,
+ enum ib_gid_type gid_type,
+ struct net_device *ndev);
+const struct ib_gid_attr *rdma_find_gid_by_port(struct ib_device *ib_dev,
+ const union ib_gid *gid,
+ enum ib_gid_type gid_type,
+ u8 port,
+ struct net_device *ndev);
+const struct ib_gid_attr *rdma_find_gid_by_filter(
+ struct ib_device *device, const union ib_gid *gid, u8 port_num,
+ bool (*filter)(const union ib_gid *gid, const struct ib_gid_attr *,
+ void *),
+ void *context);
+
+int rdma_read_gid_l2_fields(const struct ib_gid_attr *attr,
+ u16 *vlan_id, u8 *smac);
+struct net_device *rdma_read_gid_attr_ndev_rcu(const struct ib_gid_attr *attr);
+
+/**
+ * ib_get_cached_pkey - Returns a cached PKey table entry
+ * @device: The device to query.
+ * @port_num: The port number of the device to query.
+ * @index: The index into the cached PKey table to query.
+ * @pkey: The PKey value found at the specified index.
+ *
+ * ib_get_cached_pkey() fetches the specified PKey table entry stored in
+ * the local software cache.
+ */
+int ib_get_cached_pkey(struct ib_device *device_handle,
+ u8 port_num,
+ int index,
+ u16 *pkey);
+
+/**
+ * ib_find_cached_pkey - Returns the PKey table index where a specified
+ * PKey value occurs.
+ * @device: The device to query.
+ * @port_num: The port number of the device to search for the PKey.
+ * @pkey: The PKey value to search for.
+ * @index: The index into the cached PKey table where the PKey was found.
+ *
+ * ib_find_cached_pkey() searches the specified PKey table in
+ * the local software cache.
+ */
+int ib_find_cached_pkey(struct ib_device *device,
+ u8 port_num,
+ u16 pkey,
+ u16 *index);
+
+/**
+ * ib_find_exact_cached_pkey - Returns the PKey table index where a specified
+ * PKey value occurs. Comparison uses the FULL 16 bits (incl membership bit)
+ * @device: The device to query.
+ * @port_num: The port number of the device to search for the PKey.
+ * @pkey: The PKey value to search for.
+ * @index: The index into the cached PKey table where the PKey was found.
+ *
+ * ib_find_exact_cached_pkey() searches the specified PKey table in
+ * the local software cache.
+ */
+int ib_find_exact_cached_pkey(struct ib_device *device,
+ u8 port_num,
+ u16 pkey,
+ u16 *index);
+
+/**
+ * ib_get_cached_lmc - Returns a cached lmc table entry
+ * @device: The device to query.
+ * @port_num: The port number of the device to query.
+ * @lmc: The lmc value for the specified port for that device.
+ *
+ * ib_get_cached_lmc() fetches the specified lmc table entry stored in
+ * the local software cache.
+ */
+int ib_get_cached_lmc(struct ib_device *device,
+ u8 port_num,
+ u8 *lmc);
+
+/**
+ * ib_get_cached_port_state - Returns a cached port state table entry
+ * @device: The device to query.
+ * @port_num: The port number of the device to query.
+ * @port_state: port_state for the specified port for that device.
+ *
+ * ib_get_cached_port_state() fetches the specified port_state table entry stored in
+ * the local software cache.
+ */
+int ib_get_cached_port_state(struct ib_device *device,
+ u8 port_num,
+ enum ib_port_state *port_active);
+
+bool rdma_is_zero_gid(const union ib_gid *gid);
+const struct ib_gid_attr *rdma_get_gid_attr(struct ib_device *device,
+ u8 port_num, int index);
+void rdma_put_gid_attr(const struct ib_gid_attr *attr);
+void rdma_hold_gid_attr(const struct ib_gid_attr *attr);
+ssize_t rdma_query_gid_table(struct ib_device *device,
+ struct ib_uverbs_gid_entry *entries,
+ size_t max_entries);
+
+#endif /* _IB_CACHE_H */