1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ 2 /* 3 * Copyright(c) 2018 Intel Corporation. 4 */ 5 6 #ifndef _HFI1_FAULT_H 7 #define _HFI1_FAULT_H 8 9 #include <linux/fault-inject.h> 10 #include <linux/dcache.h> 11 #include <linux/bitops.h> 12 #include <linux/kernel.h> 13 #include <rdma/rdma_vt.h> 14 15 #include "hfi.h" 16 17 struct hfi1_ibdev; 18 19 #if defined(CONFIG_FAULT_INJECTION) && defined(CONFIG_FAULT_INJECTION_DEBUG_FS) 20 struct fault { 21 struct fault_attr attr; 22 struct dentry *dir; 23 u64 n_rxfaults[(1U << BITS_PER_BYTE)]; 24 u64 n_txfaults[(1U << BITS_PER_BYTE)]; 25 u64 fault_skip; 26 u64 skip; 27 u64 fault_skip_usec; 28 unsigned long skip_usec; 29 unsigned long opcodes[(1U << BITS_PER_BYTE) / BITS_PER_LONG]; 30 bool enable; 31 bool suppress_err; 32 bool opcode; 33 u8 direction; 34 }; 35 36 int hfi1_fault_init_debugfs(struct hfi1_ibdev *ibd); 37 bool hfi1_dbg_should_fault_tx(struct rvt_qp *qp, u32 opcode); 38 bool hfi1_dbg_should_fault_rx(struct hfi1_packet *packet); 39 bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd); 40 void hfi1_fault_exit_debugfs(struct hfi1_ibdev *ibd); 41 42 #else 43 hfi1_fault_init_debugfs(struct hfi1_ibdev * ibd)44 static inline int hfi1_fault_init_debugfs(struct hfi1_ibdev *ibd) 45 { 46 return 0; 47 } 48 hfi1_dbg_should_fault_rx(struct hfi1_packet * packet)49 static inline bool hfi1_dbg_should_fault_rx(struct hfi1_packet *packet) 50 { 51 return false; 52 } 53 hfi1_dbg_should_fault_tx(struct rvt_qp * qp,u32 opcode)54 static inline bool hfi1_dbg_should_fault_tx(struct rvt_qp *qp, 55 u32 opcode) 56 { 57 return false; 58 } 59 hfi1_dbg_fault_suppress_err(struct hfi1_ibdev * ibd)60 static inline bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd) 61 { 62 return false; 63 } 64 hfi1_fault_exit_debugfs(struct hfi1_ibdev * ibd)65 static inline void hfi1_fault_exit_debugfs(struct hfi1_ibdev *ibd) 66 { 67 } 68 #endif 69 #endif /* _HFI1_FAULT_H */ 70