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 35 #ifndef __OPA_SMI_H_ 36 #define __OPA_SMI_H_ 37 38 #include <rdma/ib_smi.h> 39 #include <rdma/opa_smi.h> 40 41 #include "smi.h" 42 43 enum smi_action opa_smi_handle_dr_smp_recv(struct opa_smp *smp, bool is_switch, 44 int port_num, int phys_port_cnt); 45 int opa_smi_get_fwd_port(struct opa_smp *smp); 46 extern enum smi_forward_action opa_smi_check_forward_dr_smp(struct opa_smp *smp); 47 extern enum smi_action opa_smi_handle_dr_smp_send(struct opa_smp *smp, 48 bool is_switch, int port_num); 49 50 /* 51 * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM 52 * via process_mad 53 */ 54 static inline enum smi_action opa_smi_check_local_smp(struct opa_smp *smp, 55 struct ib_device *device) 56 { 57 /* C14-9:3 -- We're at the end of the DR segment of path */ 58 /* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */ 59 return (device->process_mad && 60 !opa_get_smp_direction(smp) && 61 (smp->hop_ptr == smp->hop_cnt + 1)) ? 62 IB_SMI_HANDLE : IB_SMI_DISCARD; 63 } 64 65 /* 66 * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM 67 * via process_mad 68 */ 69 static inline enum smi_action opa_smi_check_local_returning_smp(struct opa_smp *smp, 70 struct ib_device *device) 71 { 72 /* C14-13:3 -- We're at the end of the DR segment of path */ 73 /* C14-13:4 -- Hop Pointer == 0 -> give to SM */ 74 return (device->process_mad && 75 opa_get_smp_direction(smp) && 76 !smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD; 77 } 78 79 #endif /* __OPA_SMI_H_ */ 80