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Users would like to control the behaviour of rdma_cm. For example, old applications which don't set the required RoCE gid type could be executed on RoCE V2 network types. In order to support this configuration, we implement a configfs for rdma_cm. In order to use the configfs, one needs to mount it and mkdir <IB device name> inside rdma_cm directory. The patch adds support for a single configuration file, default_roce_mode. The mode can either be "IB/RoCE v1" or "RoCE v2". Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
141 lines
4.5 KiB
C
141 lines
4.5 KiB
C
/*
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* Copyright (c) 2004 Topspin Communications. 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 _CORE_PRIV_H
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#define _CORE_PRIV_H
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <rdma/ib_verbs.h>
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#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
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int cma_configfs_init(void);
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void cma_configfs_exit(void);
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#else
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static inline int cma_configfs_init(void)
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{
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return 0;
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}
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static inline void cma_configfs_exit(void)
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{
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}
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#endif
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struct cma_device;
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void cma_ref_dev(struct cma_device *cma_dev);
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void cma_deref_dev(struct cma_device *cma_dev);
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typedef bool (*cma_device_filter)(struct ib_device *, void *);
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struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter,
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void *cookie);
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int cma_get_default_gid_type(struct cma_device *cma_dev,
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unsigned int port);
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int cma_set_default_gid_type(struct cma_device *cma_dev,
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unsigned int port,
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enum ib_gid_type default_gid_type);
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struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev);
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int ib_device_register_sysfs(struct ib_device *device,
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int (*port_callback)(struct ib_device *,
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u8, struct kobject *));
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void ib_device_unregister_sysfs(struct ib_device *device);
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void ib_cache_setup(void);
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void ib_cache_cleanup(void);
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int ib_resolve_eth_dmac(struct ib_qp *qp,
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struct ib_qp_attr *qp_attr, int *qp_attr_mask);
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typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port,
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struct net_device *idev, void *cookie);
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typedef int (*roce_netdev_filter)(struct ib_device *device, u8 port,
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struct net_device *idev, void *cookie);
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void ib_enum_roce_netdev(struct ib_device *ib_dev,
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roce_netdev_filter filter,
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void *filter_cookie,
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roce_netdev_callback cb,
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void *cookie);
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void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
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void *filter_cookie,
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roce_netdev_callback cb,
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void *cookie);
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enum ib_cache_gid_default_mode {
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IB_CACHE_GID_DEFAULT_MODE_SET,
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IB_CACHE_GID_DEFAULT_MODE_DELETE
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};
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int ib_cache_gid_parse_type_str(const char *buf);
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const char *ib_cache_gid_type_str(enum ib_gid_type gid_type);
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void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
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struct net_device *ndev,
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unsigned long gid_type_mask,
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enum ib_cache_gid_default_mode mode);
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int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
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union ib_gid *gid, struct ib_gid_attr *attr);
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int ib_cache_gid_del(struct ib_device *ib_dev, u8 port,
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union ib_gid *gid, struct ib_gid_attr *attr);
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int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
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struct net_device *ndev);
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int roce_gid_mgmt_init(void);
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void roce_gid_mgmt_cleanup(void);
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int roce_rescan_device(struct ib_device *ib_dev);
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unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
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int ib_cache_setup_one(struct ib_device *device);
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void ib_cache_cleanup_one(struct ib_device *device);
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void ib_cache_release_one(struct ib_device *device);
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static inline bool rdma_is_upper_dev_rcu(struct net_device *dev,
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struct net_device *upper)
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{
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struct net_device *_upper = NULL;
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struct list_head *iter;
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netdev_for_each_all_upper_dev_rcu(dev, _upper, iter)
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if (_upper == upper)
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break;
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return _upper == upper;
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}
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#endif /* _CORE_PRIV_H */
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