/* * 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. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #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); 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); #endif /* _IB_CACHE_H */