1 /* 2 * Copyright (c) 2014 Intel Corporation. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 * 32 */ 33 34 #ifndef __OPA_SMI_H_ 35 #define __OPA_SMI_H_ 36 37 #include <rdma/ib_smi.h> 38 #include <rdma/opa_smi.h> 39 40 #include "smi.h" 41 42 enum smi_action opa_smi_handle_dr_smp_recv(struct opa_smp *smp, bool is_switch, 43 u32 port_num, int phys_port_cnt); 44 int opa_smi_get_fwd_port(struct opa_smp *smp); 45 extern enum smi_forward_action opa_smi_check_forward_dr_smp(struct opa_smp *smp); 46 extern enum smi_action opa_smi_handle_dr_smp_send(struct opa_smp *smp, 47 bool is_switch, u32 port_num); 48 49 /* 50 * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM 51 * via process_mad 52 */ 53 static inline enum smi_action opa_smi_check_local_smp(struct opa_smp *smp, 54 struct ib_device *device) 55 { 56 /* C14-9:3 -- We're at the end of the DR segment of path */ 57 /* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */ 58 return (device->ops.process_mad && 59 !opa_get_smp_direction(smp) && 60 (smp->hop_ptr == smp->hop_cnt + 1)) ? 61 IB_SMI_HANDLE : IB_SMI_DISCARD; 62 } 63 64 /* 65 * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM 66 * via process_mad 67 */ 68 static inline enum smi_action opa_smi_check_local_returning_smp(struct opa_smp *smp, 69 struct ib_device *device) 70 { 71 /* C14-13:3 -- We're at the end of the DR segment of path */ 72 /* C14-13:4 -- Hop Pointer == 0 -> give to SM */ 73 return (device->ops.process_mad && 74 opa_get_smp_direction(smp) && 75 !smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD; 76 } 77 78 #endif /* __OPA_SMI_H_ */ 79