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