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779820c2e1
Adding a helper function to retrieve the driver gid context from the gid attr. Link: https://lore.kernel.org/r/1582107594-5180-2-git-send-email-selvin.xavier@broadcom.com Suggested-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
141 lines
5.4 KiB
C
141 lines
5.4 KiB
C
/*
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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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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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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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#endif /* _IB_CACHE_H */
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