| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | #ifndef _HFI1_FAULT_H |
| 2 | #define _HFI1_FAULT_H |
| 3 | /* |
| 4 | * Copyright(c) 2018 Intel Corporation. |
| 5 | * |
| 6 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 7 | * redistributing this file, you may do so under either license. |
| 8 | * |
| 9 | * GPL LICENSE SUMMARY |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of version 2 of the GNU General Public License as |
| 13 | * published by the Free Software Foundation. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, but |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * BSD LICENSE |
| 21 | * |
| 22 | * Redistribution and use in source and binary forms, with or without |
| 23 | * modification, are permitted provided that the following conditions |
| 24 | * are met: |
| 25 | * |
| 26 | * - Redistributions of source code must retain the above copyright |
| 27 | * notice, this list of conditions and the following disclaimer. |
| 28 | * - Redistributions in binary form must reproduce the above copyright |
| 29 | * notice, this list of conditions and the following disclaimer in |
| 30 | * the documentation and/or other materials provided with the |
| 31 | * distribution. |
| 32 | * - Neither the name of Intel Corporation nor the names of its |
| 33 | * contributors may be used to endorse or promote products derived |
| 34 | * from this software without specific prior written permission. |
| 35 | * |
| 36 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 37 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 38 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 39 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 40 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 42 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 43 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 44 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 45 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 46 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 47 | * |
| 48 | */ |
| 49 | #include <linux/fault-inject.h> |
| 50 | #include <linux/dcache.h> |
| 51 | #include <linux/bitops.h> |
| 52 | #include <linux/kernel.h> |
| 53 | #include <rdma/rdma_vt.h> |
| 54 | |
| 55 | #include "hfi.h" |
| 56 | |
| 57 | struct hfi1_ibdev; |
| 58 | |
| 59 | #if defined(CONFIG_FAULT_INJECTION) && defined(CONFIG_FAULT_INJECTION_DEBUG_FS) |
| 60 | struct fault { |
| 61 | struct fault_attr attr; |
| 62 | struct dentry *dir; |
| 63 | u64 n_rxfaults[(1U << BITS_PER_BYTE)]; |
| 64 | u64 n_txfaults[(1U << BITS_PER_BYTE)]; |
| 65 | u64 fault_skip; |
| 66 | u64 skip; |
| 67 | u64 fault_skip_usec; |
| 68 | unsigned long skip_usec; |
| 69 | unsigned long opcodes[(1U << BITS_PER_BYTE) / BITS_PER_LONG]; |
| 70 | bool enable; |
| 71 | bool suppress_err; |
| 72 | bool opcode; |
| 73 | u8 direction; |
| 74 | }; |
| 75 | |
| 76 | int hfi1_fault_init_debugfs(struct hfi1_ibdev *ibd); |
| 77 | bool hfi1_dbg_should_fault_tx(struct rvt_qp *qp, u32 opcode); |
| 78 | bool hfi1_dbg_should_fault_rx(struct hfi1_packet *packet); |
| 79 | bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd); |
| 80 | void hfi1_fault_exit_debugfs(struct hfi1_ibdev *ibd); |
| 81 | |
| 82 | #else |
| 83 | |
| 84 | static inline int hfi1_fault_init_debugfs(struct hfi1_ibdev *ibd) |
| 85 | { |
| 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | static inline bool hfi1_dbg_should_fault_rx(struct hfi1_packet *packet) |
| 90 | { |
| 91 | return false; |
| 92 | } |
| 93 | |
| 94 | static inline bool hfi1_dbg_should_fault_tx(struct rvt_qp *qp, |
| 95 | u32 opcode) |
| 96 | { |
| 97 | return false; |
| 98 | } |
| 99 | |
| 100 | static inline bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd) |
| 101 | { |
| 102 | return false; |
| 103 | } |
| 104 | |
| 105 | static inline void hfi1_fault_exit_debugfs(struct hfi1_ibdev *ibd) |
| 106 | { |
| 107 | } |
| 108 | #endif |
| 109 | #endif /* _HFI1_FAULT_H */ |