55 #include "fault.h"
111 	if (!ibd->fault->n_rxfaults[i] && !ibd->fault->n_txfaults[i])  in _fault_stats_seq_show()
116 		   (unsigned long long)ibd->fault->n_rxfaults[i],  in _fault_stats_seq_show()
117 		   (unsigned long long)ibd->fault->n_txfaults[i]);  in _fault_stats_seq_show()
138 	struct fault *fault = file->private_data;  in fault_opcodes_write()  local
180 			bitmap_zero(fault->opcodes, sizeof(fault->opcodes) *  in fault_opcodes_write()
190 				clear_bit(i, fault->opcodes);  in fault_opcodes_write()
192 				set_bit(i, fault->opcodes);  in fault_opcodes_write()
212 	struct fault *fault = file->private_data;  in fault_opcodes_read()  local
213 	size_t bitsize = sizeof(fault->opcodes) * BITS_PER_BYTE;  in fault_opcodes_read()
221 	bit = find_first_bit(fault->opcodes, bitsize);  in fault_opcodes_read()
223 		zero = find_next_zero_bit(fault->opcodes, bitsize, bit);  in fault_opcodes_read()
232 		bit = find_next_bit(fault->opcodes, bitsize, zero);  in fault_opcodes_read()
253 	if (ibd->fault)  in hfi1_fault_exit_debugfs()
254 		debugfs_remove_recursive(ibd->fault->dir);  in hfi1_fault_exit_debugfs()
255 	kfree(ibd->fault);  in hfi1_fault_exit_debugfs()
256 	ibd->fault = NULL;  in hfi1_fault_exit_debugfs()
263 	ibd->fault = kzalloc(sizeof(*ibd->fault), GFP_KERNEL);  in hfi1_fault_init_debugfs()
264 	if (!ibd->fault)  in hfi1_fault_init_debugfs()
267 	ibd->fault->attr.interval = 1;  in hfi1_fault_init_debugfs()
268 	ibd->fault->attr.require_end = ULONG_MAX;  in hfi1_fault_init_debugfs()
269 	ibd->fault->attr.stacktrace_depth = 32;  in hfi1_fault_init_debugfs()
270 	ibd->fault->attr.dname = NULL;  in hfi1_fault_init_debugfs()
271 	ibd->fault->attr.verbose = 0;  in hfi1_fault_init_debugfs()
272 	ibd->fault->enable = false;  in hfi1_fault_init_debugfs()
273 	ibd->fault->opcode = false;  in hfi1_fault_init_debugfs()
274 	ibd->fault->fault_skip = 0;  in hfi1_fault_init_debugfs()
275 	ibd->fault->skip = 0;  in hfi1_fault_init_debugfs()
276 	ibd->fault->direction = HFI1_FAULT_DIR_TXRX;  in hfi1_fault_init_debugfs()
277 	ibd->fault->suppress_err = false;  in hfi1_fault_init_debugfs()
278 	bitmap_zero(ibd->fault->opcodes,  in hfi1_fault_init_debugfs()
279 		    sizeof(ibd->fault->opcodes) * BITS_PER_BYTE);  in hfi1_fault_init_debugfs()
281 	ibd->fault->dir =  in hfi1_fault_init_debugfs()
282 		fault_create_debugfs_attr("fault", parent,  in hfi1_fault_init_debugfs()
283 					  &ibd->fault->attr);  in hfi1_fault_init_debugfs()
284 	if (IS_ERR(ibd->fault->dir)) {  in hfi1_fault_init_debugfs()
285 		kfree(ibd->fault);  in hfi1_fault_init_debugfs()
286 		ibd->fault = NULL;  in hfi1_fault_init_debugfs()
290 	DEBUGFS_SEQ_FILE_CREATE(fault_stats, ibd->fault->dir, ibd);  in hfi1_fault_init_debugfs()
291 	if (!debugfs_create_bool("enable", 0600, ibd->fault->dir,  in hfi1_fault_init_debugfs()
292 				 &ibd->fault->enable))  in hfi1_fault_init_debugfs()
295 				 ibd->fault->dir,  in hfi1_fault_init_debugfs()
296 				 &ibd->fault->suppress_err))  in hfi1_fault_init_debugfs()
298 	if (!debugfs_create_bool("opcode_mode", 0600, ibd->fault->dir,  in hfi1_fault_init_debugfs()
299 				 &ibd->fault->opcode))  in hfi1_fault_init_debugfs()
301 	if (!debugfs_create_file("opcodes", 0600, ibd->fault->dir,  in hfi1_fault_init_debugfs()
302 				 ibd->fault, &__fault_opcodes_fops))  in hfi1_fault_init_debugfs()
305 				ibd->fault->dir,  in hfi1_fault_init_debugfs()
306 				&ibd->fault->fault_skip))  in hfi1_fault_init_debugfs()
309 				ibd->fault->dir,  in hfi1_fault_init_debugfs()
310 				&ibd->fault->fault_skip_usec))  in hfi1_fault_init_debugfs()
312 	if (!debugfs_create_u8("direction", 0600, ibd->fault->dir,  in hfi1_fault_init_debugfs()
313 			       &ibd->fault->direction))  in hfi1_fault_init_debugfs()
324 	if (ibd->fault)  in hfi1_dbg_fault_suppress_err()
325 		return ibd->fault->suppress_err;  in hfi1_dbg_fault_suppress_err()
334 	if (!ibd->fault || !ibd->fault->enable)  in __hfi1_should_fault()
336 	if (!(ibd->fault->direction & direction))  in __hfi1_should_fault()
338 	if (ibd->fault->opcode) {  in __hfi1_should_fault()
339 		if (bitmap_empty(ibd->fault->opcodes,  in __hfi1_should_fault()
340 				 (sizeof(ibd->fault->opcodes) *  in __hfi1_should_fault()
343 		if (!(test_bit(opcode, ibd->fault->opcodes)))  in __hfi1_should_fault()
346 	if (ibd->fault->fault_skip_usec &&  in __hfi1_should_fault()
347 	    time_before(jiffies, ibd->fault->skip_usec))  in __hfi1_should_fault()
349 	if (ibd->fault->fault_skip && ibd->fault->skip) {  in __hfi1_should_fault()
350 		ibd->fault->skip--;  in __hfi1_should_fault()
353 	ret = should_fail(&ibd->fault->attr, 1);  in __hfi1_should_fault()
355 		ibd->fault->skip = ibd->fault->fault_skip;  in __hfi1_should_fault()
356 		ibd->fault->skip_usec = jiffies +  in __hfi1_should_fault()
357 			usecs_to_jiffies(ibd->fault->fault_skip_usec);  in __hfi1_should_fault()
368 		ibd->fault->n_txfaults[opcode]++;  in hfi1_dbg_should_fault_tx()
380 		ibd->fault->n_rxfaults[packet->opcode]++;  in hfi1_dbg_should_fault_rx()