144 	struct perf_ctx	*perf;  member
166 	struct perf_ctx *perf;  member
202 	int (*cmd_recv)(struct perf_ctx *perf, int *pidx, enum perf_cmd *cmd,
244 static void perf_terminate_test(struct perf_ctx *perf);
250 	link = ntb_link_is_up(peer->perf->ntb, NULL, NULL);  in perf_link_is_up()
257 	struct perf_ctx *perf = peer->perf;  in perf_spad_cmd_send()  local
261 	dev_dbg(&perf->ntb->dev, "CMD send: %d 0x%llx\n", cmd, data);  in perf_spad_cmd_send()
274 		sts = ntb_peer_spad_read(perf->ntb, peer->pidx,  in perf_spad_cmd_send()
275 					 PERF_SPAD_CMD(perf->gidx));  in perf_spad_cmd_send()
281 		ntb_peer_spad_write(perf->ntb, peer->pidx,  in perf_spad_cmd_send()
282 				    PERF_SPAD_LDATA(perf->gidx),  in perf_spad_cmd_send()
284 		ntb_peer_spad_write(perf->ntb, peer->pidx,  in perf_spad_cmd_send()
285 				    PERF_SPAD_HDATA(perf->gidx),  in perf_spad_cmd_send()
287 		ntb_peer_spad_write(perf->ntb, peer->pidx,  in perf_spad_cmd_send()
288 				    PERF_SPAD_CMD(perf->gidx),  in perf_spad_cmd_send()
290 		ntb_peer_db_set(perf->ntb, PERF_SPAD_NOTIFY(peer->gidx));  in perf_spad_cmd_send()
292 		dev_dbg(&perf->ntb->dev, "DB ring peer %#llx\n",  in perf_spad_cmd_send()
301 static int perf_spad_cmd_recv(struct perf_ctx *perf, int *pidx,  in perf_spad_cmd_recv()  argument
307 	ntb_db_clear(perf->ntb, PERF_SPAD_NOTIFY(perf->gidx));  in perf_spad_cmd_recv()
315 	for (*pidx = 0; *pidx < perf->pcnt; (*pidx)++) {  in perf_spad_cmd_recv()
316 		peer = &perf->peers[*pidx];  in perf_spad_cmd_recv()
321 		val = ntb_spad_read(perf->ntb, PERF_SPAD_CMD(peer->gidx));  in perf_spad_cmd_recv()
327 		val = ntb_spad_read(perf->ntb, PERF_SPAD_LDATA(peer->gidx));  in perf_spad_cmd_recv()
330 		val = ntb_spad_read(perf->ntb, PERF_SPAD_HDATA(peer->gidx));  in perf_spad_cmd_recv()
334 		ntb_spad_write(perf->ntb, PERF_SPAD_CMD(peer->gidx),  in perf_spad_cmd_recv()
337 		dev_dbg(&perf->ntb->dev, "CMD recv: %d 0x%llx\n", *cmd, *data);  in perf_spad_cmd_recv()
348 	struct perf_ctx *perf = peer->perf;  in perf_msg_cmd_send()  local
352 	dev_dbg(&perf->ntb->dev, "CMD send: %d 0x%llx\n", cmd, data);  in perf_msg_cmd_send()
361 	outbits = ntb_msg_outbits(perf->ntb);  in perf_msg_cmd_send()
366 		ret = ntb_msg_clear_sts(perf->ntb, outbits);  in perf_msg_cmd_send()
370 		ntb_peer_msg_write(perf->ntb, peer->pidx, PERF_MSG_LDATA,  in perf_msg_cmd_send()
373 		if (ntb_msg_read_sts(perf->ntb) & outbits) {  in perf_msg_cmd_send()
378 		ntb_peer_msg_write(perf->ntb, peer->pidx, PERF_MSG_HDATA,  in perf_msg_cmd_send()
382 		ntb_peer_msg_write(perf->ntb, peer->pidx, PERF_MSG_CMD, cmd);  in perf_msg_cmd_send()
390 static int perf_msg_cmd_recv(struct perf_ctx *perf, int *pidx,  in perf_msg_cmd_recv()  argument
396 	inbits = ntb_msg_inbits(perf->ntb);  in perf_msg_cmd_recv()
398 	if (hweight64(ntb_msg_read_sts(perf->ntb) & inbits) < 3)  in perf_msg_cmd_recv()
401 	val = ntb_msg_read(perf->ntb, pidx, PERF_MSG_CMD);  in perf_msg_cmd_recv()
404 	val = ntb_msg_read(perf->ntb, pidx, PERF_MSG_LDATA);  in perf_msg_cmd_recv()
407 	val = ntb_msg_read(perf->ntb, pidx, PERF_MSG_HDATA);  in perf_msg_cmd_recv()
411 	ntb_msg_clear_sts(perf->ntb, inbits);  in perf_msg_cmd_recv()
413 	dev_dbg(&perf->ntb->dev, "CMD recv: %d 0x%llx\n", *cmd, *data);  in perf_msg_cmd_recv()
420 	struct perf_ctx *perf = peer->perf;  in perf_cmd_send()  local
423 		return perf->cmd_send(peer, cmd, data);  in perf_cmd_send()
425 	dev_err(&perf->ntb->dev, "Send invalid command\n");  in perf_cmd_send()
439 		dev_err(&peer->perf->ntb->dev, "Exec invalid command\n");  in perf_cmd_exec()
446 	dev_dbg(&peer->perf->ntb->dev, "CMD exec: %d\n", cmd);  in perf_cmd_exec()
453 static int perf_cmd_recv(struct perf_ctx *perf)  in perf_cmd_recv()  argument
459 	while (!(ret = perf->cmd_recv(perf, &pidx, &cmd, &data))) {  in perf_cmd_recv()
460 		peer = &perf->peers[pidx];  in perf_cmd_recv()
470 			dev_err(&perf->ntb->dev, "Recv invalid command\n");  in perf_cmd_recv()
481 	struct perf_ctx *perf = ctx;  in perf_link_event()  local
486 	for (pidx = 0; pidx < perf->pcnt; pidx++) {  in perf_link_event()
487 		peer = &perf->peers[pidx];  in perf_link_event()
503 	struct perf_ctx *perf = ctx;  in perf_db_event()  local
505 	dev_dbg(&perf->ntb->dev, "DB vec %d mask %#llx bits %#llx\n", vec,  in perf_db_event()
506 		ntb_db_vector_mask(perf->ntb, vec), ntb_db_read(perf->ntb));  in perf_db_event()
509 	(void)perf_cmd_recv(perf);  in perf_db_event()
514 	struct perf_ctx *perf = ctx;  in perf_msg_event()  local
516 	dev_dbg(&perf->ntb->dev, "Msg status bits %#llx\n",  in perf_msg_event()
517 		ntb_msg_read_sts(perf->ntb));  in perf_msg_event()
520 	(void)perf_cmd_recv(perf);  in perf_msg_event()
531 	(void)ntb_peer_mw_clear_trans(peer->perf->ntb, peer->pidx, peer->gidx);  in perf_free_outbuf()
536 	struct perf_ctx *perf = peer->perf;  in perf_setup_outbuf()  local
540 	ret = ntb_peer_mw_set_trans(perf->ntb, peer->pidx, peer->gidx,  in perf_setup_outbuf()
543 		dev_err(&perf->ntb->dev, "Failed to set outbuf translation\n");  in perf_setup_outbuf()
558 	(void)ntb_mw_clear_trans(peer->perf->ntb, peer->pidx, peer->gidx);  in perf_free_inbuf()
559 	dma_free_coherent(&peer->perf->ntb->dev, peer->inbuf_size,  in perf_free_inbuf()
567 	struct perf_ctx *perf = peer->perf;  in perf_setup_inbuf()  local
571 	ret = ntb_mw_get_align(perf->ntb, peer->pidx, perf->gidx,  in perf_setup_inbuf()
574 		dev_err(&perf->ntb->dev, "Couldn't get inbuf restrictions\n");  in perf_setup_inbuf()
579 		dev_err(&perf->ntb->dev, "Too big inbuf size %pa > %pa\n",  in perf_setup_inbuf()
588 	peer->inbuf = dma_alloc_coherent(&perf->ntb->dev, peer->inbuf_size,  in perf_setup_inbuf()
591 		dev_err(&perf->ntb->dev, "Failed to alloc inbuf of %pa\n",  in perf_setup_inbuf()
596 		dev_err(&perf->ntb->dev, "Unaligned inbuf allocated\n");  in perf_setup_inbuf()
600 	ret = ntb_mw_set_trans(perf->ntb, peer->pidx, peer->gidx,  in perf_setup_inbuf()
603 		dev_err(&perf->ntb->dev, "Failed to set inbuf translation\n");  in perf_setup_inbuf()
640 		if (test_bit(0, &peer->perf->busy_flag) &&  in perf_service_work()
641 		    peer == peer->perf->test_peer) {  in perf_service_work()
642 			dev_warn(&peer->perf->ntb->dev,  in perf_service_work()
644 			perf_terminate_test(peer->perf);  in perf_service_work()
651 static int perf_init_service(struct perf_ctx *perf)  in perf_init_service()  argument
655 	if (ntb_peer_mw_count(perf->ntb) < perf->pcnt + 1) {  in perf_init_service()
656 		dev_err(&perf->ntb->dev, "Not enough memory windows\n");  in perf_init_service()
660 	if (ntb_msg_count(perf->ntb) >= PERF_MSG_CNT) {  in perf_init_service()
661 		perf->cmd_send = perf_msg_cmd_send;  in perf_init_service()
662 		perf->cmd_recv = perf_msg_cmd_recv;  in perf_init_service()
664 		dev_dbg(&perf->ntb->dev, "Message service initialized\n");  in perf_init_service()
669 	dev_dbg(&perf->ntb->dev, "Message service unsupported\n");  in perf_init_service()
671 	mask = GENMASK_ULL(perf->pcnt, 0);  in perf_init_service()
672 	if (ntb_spad_count(perf->ntb) >= PERF_SPAD_CNT(perf->pcnt) &&  in perf_init_service()
673 	    (ntb_db_valid_mask(perf->ntb) & mask) == mask) {  in perf_init_service()
674 		perf->cmd_send = perf_spad_cmd_send;  in perf_init_service()
675 		perf->cmd_recv = perf_spad_cmd_recv;  in perf_init_service()
677 		dev_dbg(&perf->ntb->dev, "Scratchpad service initialized\n");  in perf_init_service()
682 	dev_dbg(&perf->ntb->dev, "Scratchpad service unsupported\n");  in perf_init_service()
684 	dev_err(&perf->ntb->dev, "Command services unsupported\n");  in perf_init_service()
689 static int perf_enable_service(struct perf_ctx *perf)  in perf_enable_service()  argument
694 	mask = ntb_db_valid_mask(perf->ntb);  in perf_enable_service()
695 	(void)ntb_db_set_mask(perf->ntb, mask);  in perf_enable_service()
697 	ret = ntb_set_ctx(perf->ntb, perf, &perf_ops);  in perf_enable_service()
701 	if (perf->cmd_send == perf_msg_cmd_send) {  in perf_enable_service()
704 		inbits = ntb_msg_inbits(perf->ntb);  in perf_enable_service()
705 		outbits = ntb_msg_outbits(perf->ntb);  in perf_enable_service()
706 		(void)ntb_msg_set_mask(perf->ntb, inbits | outbits);  in perf_enable_service()
709 		ret = ntb_msg_clear_mask(perf->ntb, incmd_bit);  in perf_enable_service()
711 		dev_dbg(&perf->ntb->dev, "MSG sts unmasked %#llx\n", incmd_bit);  in perf_enable_service()
713 		scnt = ntb_spad_count(perf->ntb);  in perf_enable_service()
715 			ntb_spad_write(perf->ntb, sidx, PERF_CMD_INVAL);  in perf_enable_service()
716 		incmd_bit = PERF_SPAD_NOTIFY(perf->gidx);  in perf_enable_service()
717 		ret = ntb_db_clear_mask(perf->ntb, incmd_bit);  in perf_enable_service()
719 		dev_dbg(&perf->ntb->dev, "DB bits unmasked %#llx\n", incmd_bit);  in perf_enable_service()
722 		ntb_clear_ctx(perf->ntb);  in perf_enable_service()
726 	ntb_link_enable(perf->ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);  in perf_enable_service()
728 	ntb_link_event(perf->ntb);  in perf_enable_service()
733 static void perf_disable_service(struct perf_ctx *perf)  in perf_disable_service()  argument
737 	if (perf->cmd_send == perf_msg_cmd_send) {  in perf_disable_service()
740 		inbits = ntb_msg_inbits(perf->ntb);  in perf_disable_service()
741 		(void)ntb_msg_set_mask(perf->ntb, inbits);  in perf_disable_service()
743 		(void)ntb_db_set_mask(perf->ntb, PERF_SPAD_NOTIFY(perf->gidx));  in perf_disable_service()
746 	ntb_clear_ctx(perf->ntb);  in perf_disable_service()
748 	for (pidx = 0; pidx < perf->pcnt; pidx++)  in perf_disable_service()
749 		perf_cmd_exec(&perf->peers[pidx], PERF_CMD_CLEAR);  in perf_disable_service()
751 	for (pidx = 0; pidx < perf->pcnt; pidx++)  in perf_disable_service()
752 		flush_work(&perf->peers[pidx].service);  in perf_disable_service()
754 	for (pidx = 0; pidx < perf->pcnt; pidx++) {  in perf_disable_service()
755 		struct perf_peer *peer = &perf->peers[pidx];  in perf_disable_service()
757 		ntb_spad_write(perf->ntb, PERF_SPAD_CMD(peer->gidx), 0);  in perf_disable_service()
760 	ntb_db_clear(perf->ntb, PERF_SPAD_NOTIFY(perf->gidx));  in perf_disable_service()
762 	ntb_link_disable(perf->ntb);  in perf_disable_service()
846 	return likely(atomic_read(&pthr->perf->tsync) > 0) ? 0 : -EINTR;  in perf_copy_chunk()
856 	struct perf_ctx *perf = data;  in perf_dma_filter()  local
859 	node = dev_to_node(&perf->ntb->dev);  in perf_dma_filter()
866 	struct perf_ctx *perf = pthr->perf;  in perf_init_test()  local
869 	pthr->src = kmalloc_node(perf->test_peer->outbuf_size, GFP_KERNEL,  in perf_init_test()
870 				 dev_to_node(&perf->ntb->dev));  in perf_init_test()
874 	get_random_bytes(pthr->src, perf->test_peer->outbuf_size);  in perf_init_test()
881 	pthr->dma_chan = dma_request_channel(dma_mask, perf_dma_filter, perf);  in perf_init_test()
883 		dev_err(&perf->ntb->dev, "%d: Failed to get DMA channel\n",  in perf_init_test()
885 		atomic_dec(&perf->tsync);  in perf_init_test()
886 		wake_up(&perf->twait);  in perf_init_test()
898 	struct perf_peer *peer = pthr->perf->test_peer;  in perf_run_test()
899 	struct perf_ctx *perf = pthr->perf;  in perf_run_test()  local
919 			dev_err(&perf->ntb->dev, "%d: Got error %d on test\n",  in perf_run_test()
942 	struct perf_ctx *perf = pthr->perf;  in perf_sync_test()  local
949 		    atomic_read(&perf->tsync) < 0));  in perf_sync_test()
951 	if (atomic_read(&perf->tsync) < 0)  in perf_sync_test()
957 	dev_dbg(&perf->ntb->dev, "%d: copied %llu bytes\n",  in perf_sync_test()
960 	dev_dbg(&perf->ntb->dev, "%d: lasted %llu usecs\n",  in perf_sync_test()
963 	dev_dbg(&perf->ntb->dev, "%d: %llu MBytes/s\n", pthr->tidx,  in perf_sync_test()
971 	struct perf_ctx *perf = pthr->perf;  in perf_clear_test()  local
985 	atomic_dec(&perf->tsync);  in perf_clear_test()
986 	wake_up(&perf->twait);  in perf_clear_test()
1020 static int perf_set_tcnt(struct perf_ctx *perf, u8 tcnt)  in perf_set_tcnt()  argument
1025 	if (test_and_set_bit_lock(0, &perf->busy_flag))  in perf_set_tcnt()
1028 	perf->tcnt = tcnt;  in perf_set_tcnt()
1030 	clear_bit_unlock(0, &perf->busy_flag);  in perf_set_tcnt()
1035 static void perf_terminate_test(struct perf_ctx *perf)  in perf_terminate_test()  argument
1039 	atomic_set(&perf->tsync, -1);  in perf_terminate_test()
1040 	wake_up(&perf->twait);  in perf_terminate_test()
1043 		wake_up(&perf->threads[tidx].dma_wait);  in perf_terminate_test()
1044 		cancel_work_sync(&perf->threads[tidx].work);  in perf_terminate_test()
1050 	struct perf_ctx *perf = peer->perf;  in perf_submit_test()  local
1057 	if (test_and_set_bit_lock(0, &perf->busy_flag))  in perf_submit_test()
1060 	perf->test_peer = peer;  in perf_submit_test()
1061 	atomic_set(&perf->tsync, perf->tcnt);  in perf_submit_test()
1064 		pthr = &perf->threads[tidx];  in perf_submit_test()
1069 		if (tidx < perf->tcnt)  in perf_submit_test()
1073 	ret = wait_event_interruptible(perf->twait,  in perf_submit_test()
1074 				       atomic_read(&perf->tsync) <= 0);  in perf_submit_test()
1076 		perf_terminate_test(perf);  in perf_submit_test()
1080 	clear_bit_unlock(0, &perf->busy_flag);  in perf_submit_test()
1085 static int perf_read_stats(struct perf_ctx *perf, char *buf,  in perf_read_stats()  argument
1091 	if (test_and_set_bit_lock(0, &perf->busy_flag))  in perf_read_stats()
1095 		"    Peer %d test statistics:\n", perf->test_peer->pidx);  in perf_read_stats()
1098 		pthr = &perf->threads[tidx];  in perf_read_stats()
1115 	clear_bit_unlock(0, &perf->busy_flag);  in perf_read_stats()
1120 static void perf_init_threads(struct perf_ctx *perf)  in perf_init_threads()  argument
1125 	perf->tcnt = DEF_THREADS_CNT;  in perf_init_threads()
1126 	perf->test_peer = &perf->peers[0];  in perf_init_threads()
1127 	init_waitqueue_head(&perf->twait);  in perf_init_threads()
1130 		pthr = &perf->threads[tidx];  in perf_init_threads()
1132 		pthr->perf = perf;  in perf_init_threads()
1140 static void perf_clear_threads(struct perf_ctx *perf)  in perf_clear_threads()  argument
1142 	perf_terminate_test(perf);  in perf_clear_threads()
1153 	struct perf_ctx *perf = filep->private_data;  in perf_dbgfs_read_info()  local
1170 		"Local port %d, Global index %d\n", ntb_port_number(perf->ntb),  in perf_dbgfs_read_info()
1171 		perf->gidx);  in perf_dbgfs_read_info()
1173 	if (test_bit(0, &perf->busy_flag)) {  in perf_dbgfs_read_info()
1176 			ntb_peer_port_number(perf->ntb, perf->test_peer->pidx),  in perf_dbgfs_read_info()
1177 			perf->test_peer->pidx);  in perf_dbgfs_read_info()
1182 	for (pidx = 0; pidx < perf->pcnt; pidx++) {  in perf_dbgfs_read_info()
1183 		peer = &perf->peers[pidx];  in perf_dbgfs_read_info()
1187 			ntb_peer_port_number(perf->ntb, peer->pidx), peer->pidx,  in perf_dbgfs_read_info()
1233 	struct perf_ctx *perf = filep->private_data;  in perf_dbgfs_read_run()  local
1241 	ret = perf_read_stats(perf, buf, PERF_BUF_LEN, &pos);  in perf_dbgfs_read_run()
1255 	struct perf_ctx *perf = filep->private_data;  in perf_dbgfs_write_run()  local
1263 	if (pidx < 0 || pidx >= perf->pcnt)  in perf_dbgfs_write_run()
1266 	peer = &perf->peers[pidx];  in perf_dbgfs_write_run()
1284 	struct perf_ctx *perf = filep->private_data;  in perf_dbgfs_read_tcnt()  local
1288 	pos = scnprintf(buf, sizeof(buf), "%hhu\n", perf->tcnt);  in perf_dbgfs_read_tcnt()
1297 	struct perf_ctx *perf = filep->private_data;  in perf_dbgfs_write_tcnt()  local
1305 	ret = perf_set_tcnt(perf, val);  in perf_dbgfs_write_tcnt()
1318 static void perf_setup_dbgfs(struct perf_ctx *perf)  in perf_setup_dbgfs()  argument
1320 	struct pci_dev *pdev = perf->ntb->pdev;  in perf_setup_dbgfs()
1322 	perf->dbgfs_dir = debugfs_create_dir(pci_name(pdev), perf_dbgfs_topdir);  in perf_setup_dbgfs()
1323 	if (!perf->dbgfs_dir) {  in perf_setup_dbgfs()
1324 		dev_warn(&perf->ntb->dev, "DebugFS unsupported\n");  in perf_setup_dbgfs()
1328 	debugfs_create_file("info", 0600, perf->dbgfs_dir, perf,  in perf_setup_dbgfs()
1331 	debugfs_create_file("run", 0600, perf->dbgfs_dir, perf,  in perf_setup_dbgfs()
1334 	debugfs_create_file("threads_count", 0600, perf->dbgfs_dir, perf,  in perf_setup_dbgfs()
1338 	debugfs_create_u8("chunk_order", 0500, perf->dbgfs_dir, &chunk_order);  in perf_setup_dbgfs()
1340 	debugfs_create_u8("total_order", 0500, perf->dbgfs_dir, &total_order);  in perf_setup_dbgfs()
1342 	debugfs_create_bool("use_dma", 0500, perf->dbgfs_dir, &use_dma);  in perf_setup_dbgfs()
1345 static void perf_clear_dbgfs(struct perf_ctx *perf)  in perf_clear_dbgfs()  argument
1347 	debugfs_remove_recursive(perf->dbgfs_dir);  in perf_clear_dbgfs()
1357 	struct perf_ctx *perf;  in perf_create_data()  local
1359 	perf = devm_kzalloc(&ntb->dev, sizeof(*perf), GFP_KERNEL);  in perf_create_data()
1360 	if (!perf)  in perf_create_data()
1363 	perf->pcnt = ntb_peer_port_count(ntb);  in perf_create_data()
1364 	perf->peers = devm_kcalloc(&ntb->dev, perf->pcnt, sizeof(*perf->peers),  in perf_create_data()
1366 	if (!perf->peers)  in perf_create_data()
1369 	perf->ntb = ntb;  in perf_create_data()
1371 	return perf;  in perf_create_data()
1376 	struct perf_ctx *perf = peer->perf;  in perf_setup_peer_mw()  local
1381 	ret = ntb_peer_mw_get_addr(perf->ntb, perf->gidx, &phys_addr,  in perf_setup_peer_mw()
1386 	peer->outbuf = devm_ioremap_wc(&perf->ntb->dev, phys_addr,  in perf_setup_peer_mw()
1393 		dev_warn(&peer->perf->ntb->dev,  in perf_setup_peer_mw()
1401 static int perf_init_peers(struct perf_ctx *perf)  in perf_init_peers()  argument
1406 	lport = ntb_port_number(perf->ntb);  in perf_init_peers()
1407 	perf->gidx = -1;  in perf_init_peers()
1408 	for (pidx = 0; pidx < perf->pcnt; pidx++) {  in perf_init_peers()
1409 		peer = &perf->peers[pidx];  in perf_init_peers()
1411 		peer->perf = perf;  in perf_init_peers()
1413 		if (lport < ntb_peer_port_number(perf->ntb, pidx)) {  in perf_init_peers()
1414 			if (perf->gidx == -1)  in perf_init_peers()
1415 				perf->gidx = pidx;  in perf_init_peers()
1422 	if (perf->gidx == -1)  in perf_init_peers()
1423 		perf->gidx = pidx;  in perf_init_peers()
1425 	for (pidx = 0; pidx < perf->pcnt; pidx++) {  in perf_init_peers()
1426 		ret = perf_setup_peer_mw(&perf->peers[pidx]);  in perf_init_peers()
1431 	dev_dbg(&perf->ntb->dev, "Global port index %d\n", perf->gidx);  in perf_init_peers()
1438 	struct perf_ctx *perf;  in perf_probe()  local
1441 	perf = perf_create_data(ntb);  in perf_probe()
1442 	if (IS_ERR(perf))  in perf_probe()
1443 		return PTR_ERR(perf);  in perf_probe()
1445 	ret = perf_init_peers(perf);  in perf_probe()
1449 	perf_init_threads(perf);  in perf_probe()
1451 	ret = perf_init_service(perf);  in perf_probe()
1455 	ret = perf_enable_service(perf);  in perf_probe()
1459 	perf_setup_dbgfs(perf);  in perf_probe()
1466 	struct perf_ctx *perf = ntb->ctx;  in perf_remove()  local
1468 	perf_clear_dbgfs(perf);  in perf_remove()
1470 	perf_disable_service(perf);  in perf_remove()
1472 	perf_clear_threads(perf);  in perf_remove()