C++ (Cpp) qtnf_disable_hdp_irqs Examples

Example #1

File: pearl_pcie.c Project: avagin/linux

static void qtnf_pcie_data_rx_stop(struct qtnf_bus *bus)
{
	struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus);

	napi_disable(&bus->mux_napi);
	qtnf_disable_hdp_irqs(ps);
}

Example #2

File: pearl_pcie.c Project: avagin/linux

static int qtnf_pcie_pearl_probe(struct qtnf_bus *bus, unsigned int tx_bd_size)
{
	struct qtnf_shm_ipc_int ipc_int;
	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
	struct pci_dev *pdev = ps->base.pdev;
	int ret;

	bus->bus_ops = &qtnf_pcie_pearl_bus_ops;
	spin_lock_init(&ps->irq_lock);
	INIT_WORK(&bus->fw_work, qtnf_pearl_fw_work_handler);

	ps->pcie_reg_base = ps->base.dmareg_bar;
	ps->bda = ps->base.epmem_bar;
	writel(ps->base.msi_enabled, &ps->bda->bda_rc_msi_enabled);

	ret = qtnf_pcie_pearl_init_xfer(ps, tx_bd_size);
	if (ret) {
		pr_err("PCIE xfer init failed\n");
		return ret;
	}

	/* init default irq settings */
	qtnf_init_hdp_irqs(ps);

	/* start with disabled irqs */
	qtnf_disable_hdp_irqs(ps);

	ret = devm_request_irq(&pdev->dev, pdev->irq,
			       &qtnf_pcie_pearl_interrupt, 0,
			       "qtnf_pearl_irq", (void *)bus);
	if (ret) {
		pr_err("failed to request pcie irq %d\n", pdev->irq);
		qtnf_pearl_free_xfer_buffers(ps);
		return ret;
	}

	tasklet_init(&ps->base.reclaim_tq, qtnf_pearl_reclaim_tasklet_fn,
		     (unsigned long)ps);
	netif_napi_add(&bus->mux_dev, &bus->mux_napi,
		       qtnf_pcie_pearl_rx_poll, 10);

	ipc_int.fn = qtnf_pcie_pearl_ipc_gen_ep_int;
	ipc_int.arg = ps;
	qtnf_pcie_init_shm_ipc(&ps->base, &ps->bda->bda_shm_reg1,
			       &ps->bda->bda_shm_reg2, &ipc_int);

	return 0;
}

Example #3

File: pcie.c Project: Lyude/linux

static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
	struct qtnf_pcie_bus_priv *pcie_priv;
	struct qtnf_bus *bus;
	int ret;

	bus = devm_kzalloc(&pdev->dev,
			   sizeof(*bus) + sizeof(*pcie_priv), GFP_KERNEL);
	if (!bus)
		return -ENOMEM;

	pcie_priv = get_bus_priv(bus);

	pci_set_drvdata(pdev, bus);
	bus->bus_ops = &qtnf_pcie_bus_ops;
	bus->dev = &pdev->dev;
	bus->fw_state = QTNF_FW_STATE_RESET;
	pcie_priv->pdev = pdev;

	strcpy(bus->fwname, QTN_PCI_PEARL_FW_NAME);
	init_completion(&bus->firmware_init_complete);
	mutex_init(&bus->bus_lock);
	spin_lock_init(&pcie_priv->tx0_lock);
	spin_lock_init(&pcie_priv->irq_lock);
	spin_lock_init(&pcie_priv->tx_reclaim_lock);

	/* init stats */
	pcie_priv->tx_full_count = 0;
	pcie_priv->tx_done_count = 0;
	pcie_priv->pcie_irq_count = 0;
	pcie_priv->pcie_irq_rx_count = 0;
	pcie_priv->pcie_irq_tx_count = 0;
	pcie_priv->pcie_irq_uf_count = 0;
	pcie_priv->tx_reclaim_done = 0;
	pcie_priv->tx_reclaim_req = 0;

	tasklet_init(&pcie_priv->reclaim_tq, qtnf_reclaim_tasklet_fn,
		     (unsigned long)pcie_priv);

	init_dummy_netdev(&bus->mux_dev);
	netif_napi_add(&bus->mux_dev, &bus->mux_napi,
		       qtnf_rx_poll, 10);

	pcie_priv->workqueue = create_singlethread_workqueue("QTNF_PEARL_PCIE");
	if (!pcie_priv->workqueue) {
		pr_err("failed to alloc bus workqueue\n");
		ret = -ENODEV;
		goto err_init;
	}

	if (!pci_is_pcie(pdev)) {
		pr_err("device %s is not PCI Express\n", pci_name(pdev));
		ret = -EIO;
		goto err_base;
	}

	qtnf_tune_pcie_mps(pcie_priv);

	ret = pcim_enable_device(pdev);
	if (ret) {
		pr_err("failed to init PCI device %x\n", pdev->device);
		goto err_base;
	} else {
		pr_debug("successful init of PCI device %x\n", pdev->device);
	}

#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
#else
	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
#endif
	if (ret) {
		pr_err("PCIE DMA coherent mask init failed\n");
		goto err_base;
	}

	pci_set_master(pdev);
	qtnf_pcie_init_irq(pcie_priv);

	ret = qtnf_pcie_init_memory(pcie_priv);
	if (ret < 0) {
		pr_err("PCIE memory init failed\n");
		goto err_base;
	}

	pci_save_state(pdev);

	ret = qtnf_pcie_init_shm_ipc(pcie_priv);
	if (ret < 0) {
		pr_err("PCIE SHM IPC init failed\n");
		goto err_base;
	}

	ret = qtnf_pcie_init_xfer(pcie_priv);
	if (ret) {
		pr_err("PCIE xfer init failed\n");
		goto err_ipc;
	}

	/* init default irq settings */
	qtnf_init_hdp_irqs(pcie_priv);

	/* start with disabled irqs */
	qtnf_disable_hdp_irqs(pcie_priv);

	ret = devm_request_irq(&pdev->dev, pdev->irq, &qtnf_interrupt, 0,
			       "qtnf_pcie_irq", (void *)bus);
	if (ret) {
		pr_err("failed to request pcie irq %d\n", pdev->irq);
		goto err_xfer;
	}

	qtnf_bringup_fw_async(bus);

	return 0;

err_xfer:
	qtnf_free_xfer_buffers(pcie_priv);

err_ipc:
	qtnf_pcie_free_shm_ipc(pcie_priv);

err_base:
	flush_workqueue(pcie_priv->workqueue);
	destroy_workqueue(pcie_priv->workqueue);
	netif_napi_del(&bus->mux_napi);

err_init:
	tasklet_kill(&pcie_priv->reclaim_tq);
	pci_set_drvdata(pdev, NULL);

	return ret;
}