opa_smi.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
    3  *
    4  * Copyright (c) 2014 Intel Corporation.  All rights reserved.
    5  *
    6  * This software is available to you under a choice of one of two
    7  * licenses.  You may choose to be licensed under the terms of the GNU
    8  * General Public License (GPL) Version 2, available from the file
    9  * COPYING in the main directory of this source tree, or the
   10  * OpenIB.org BSD license below:
   11  *
   12  *     Redistribution and use in source and binary forms, with or
   13  *     without modification, are permitted provided that the following
   14  *     conditions are met:
   15  *
   16  *      - Redistributions of source code must retain the above
   17  *        copyright notice, this list of conditions and the following
   18  *        disclaimer.
   19  *
   20  *      - Redistributions in binary form must reproduce the above
   21  *        copyright notice, this list of conditions and the following
   22  *        disclaimer in the documentation and/or other materials
   23  *        provided with the distribution.
   24  *
   25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   32  * SOFTWARE.
   33  *
   34  * $FreeBSD$
   35  */
   36 
   37 #ifndef __OPA_SMI_H_
   38 #define __OPA_SMI_H_
   39 
   40 #include <rdma/ib_smi.h>
   41 #include <rdma/opa_smi.h>
   42 
   43 #include "smi.h"
   44 
   45 enum smi_action opa_smi_handle_dr_smp_recv(struct opa_smp *smp, bool is_switch,
   46                                        int port_num, int phys_port_cnt);
   47 int opa_smi_get_fwd_port(struct opa_smp *smp);
   48 extern enum smi_forward_action opa_smi_check_forward_dr_smp(struct opa_smp *smp);
   49 extern enum smi_action opa_smi_handle_dr_smp_send(struct opa_smp *smp,
   50                                               bool is_switch, int port_num);
   51 
   52 /*
   53  * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM
   54  * via process_mad
   55  */
   56 static inline enum smi_action opa_smi_check_local_smp(struct opa_smp *smp,
   57                                                       struct ib_device *device)
   58 {
   59         /* C14-9:3 -- We're at the end of the DR segment of path */
   60         /* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */
   61         return (device->process_mad &&
   62                 !opa_get_smp_direction(smp) &&
   63                 (smp->hop_ptr == smp->hop_cnt + 1)) ?
   64                 IB_SMI_HANDLE : IB_SMI_DISCARD;
   65 }
   66 
   67 /*
   68  * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM
   69  * via process_mad
   70  */
   71 static inline enum smi_action opa_smi_check_local_returning_smp(struct opa_smp *smp,
   72                                                                 struct ib_device *device)
   73 {
   74         /* C14-13:3 -- We're at the end of the DR segment of path */
   75         /* C14-13:4 -- Hop Pointer == 0 -> give to SM */
   76         return (device->process_mad &&
   77                 opa_get_smp_direction(smp) &&
   78                 !smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD;
   79 }
   80 
   81 #endif  /* __OPA_SMI_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/ofed/drivers/infiniband/core/opa_smi.h

FreeBSD/Linux Kernel Cross Reference
sys/ofed/drivers/infiniband/core/opa_smi.h