C++ (Cpp) perf_setup_mwの例

コード例 #1

ファイル: ntb_perf.c プロジェクト: AshishNamdev/linux

static int perf_probe(struct ntb_client *client, struct ntb_dev *ntb)
{
	struct pci_dev *pdev = ntb->pdev;
	struct perf_ctx *perf;
	int node;
	int rc = 0;

	if (ntb_spad_count(ntb) < MAX_SPAD) {
		dev_err(&ntb->dev, "Not enough scratch pad registers for %s",
			DRIVER_NAME);
		return -EIO;
	}

	node = dev_to_node(&pdev->dev);

	perf = kzalloc_node(sizeof(*perf), GFP_KERNEL, node);
	if (!perf) {
		rc = -ENOMEM;
		goto err_perf;
	}

	perf->ntb = ntb;
	perf->perf_threads = 1;
	atomic_set(&perf->tsync, 0);
	mutex_init(&perf->run_mutex);
	spin_lock_init(&perf->db_lock);
	perf_setup_mw(ntb, perf);
	init_waitqueue_head(&perf->link_wq);
	INIT_DELAYED_WORK(&perf->link_work, perf_link_work);

	rc = ntb_set_ctx(ntb, perf, &perf_ops);
	if (rc)
		goto err_ctx;

	perf->link_is_up = false;
	ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);
	ntb_link_event(ntb);

	rc = perf_debugfs_setup(perf);
	if (rc)
		goto err_ctx;

	perf_clear_thread_status(perf);

	return 0;

err_ctx:
	cancel_delayed_work_sync(&perf->link_work);
	kfree(perf);
err_perf:
	return rc;
}

コード例 #2

ファイル: ntb_perf.c プロジェクト: 020gzh/linux

static int perf_probe(struct ntb_client *client, struct ntb_dev *ntb)
{
	struct pci_dev *pdev = ntb->pdev;
	struct perf_ctx *perf;
	int node;
	int rc = 0;

	node = dev_to_node(&pdev->dev);

	perf = kzalloc_node(sizeof(*perf), GFP_KERNEL, node);
	if (!perf) {
		rc = -ENOMEM;
		goto err_perf;
	}

	perf->ntb = ntb;
	perf->perf_threads = 1;
	atomic_set(&perf->tsync, 0);
	perf->run = false;
	spin_lock_init(&perf->db_lock);
	perf_setup_mw(ntb, perf);
	INIT_DELAYED_WORK(&perf->link_work, perf_link_work);
	INIT_WORK(&perf->link_cleanup, perf_link_cleanup);

	rc = ntb_set_ctx(ntb, perf, &perf_ops);
	if (rc)
		goto err_ctx;

	perf->link_is_up = false;
	ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);
	ntb_link_event(ntb);

	rc = perf_debugfs_setup(perf);
	if (rc)
		goto err_ctx;

	return 0;

err_ctx:
	cancel_delayed_work_sync(&perf->link_work);
	cancel_work_sync(&perf->link_cleanup);
	kfree(perf);
err_perf:
	return rc;
}