static void qtnf_pcie_remove(struct pci_dev *pdev)
{
struct qtnf_pcie_bus_priv *priv;
struct qtnf_bus *bus;
bus = pci_get_drvdata(pdev);
if (!bus)
return;
wait_for_completion(&bus->firmware_init_complete);
if (bus->fw_state == QTNF_FW_STATE_ACTIVE ||
bus->fw_state == QTNF_FW_STATE_EP_DEAD)
qtnf_core_detach(bus);
priv = get_bus_priv(bus);
netif_napi_del(&bus->mux_napi);
flush_workqueue(priv->workqueue);
destroy_workqueue(priv->workqueue);
tasklet_kill(&priv->reclaim_tq);
qtnf_free_xfer_buffers(priv);
qtnf_debugfs_remove(bus);
qtnf_pcie_free_shm_ipc(priv);
qtnf_reset_card(priv);
}
static void qtnf_pcie_remove(struct pci_dev *dev)
{
struct qtnf_pcie_bus_priv *priv;
struct qtnf_bus *bus;
bus = pci_get_drvdata(dev);
if (!bus)
return;
priv = get_bus_priv(bus);
cancel_work_sync(&bus->fw_work);
if (bus->fw_state == QTNF_FW_STATE_ACTIVE ||
bus->fw_state == QTNF_FW_STATE_EP_DEAD)
qtnf_core_detach(bus);
netif_napi_del(&bus->mux_napi);
flush_workqueue(priv->workqueue);
destroy_workqueue(priv->workqueue);
tasklet_kill(&priv->reclaim_tq);
qtnf_pcie_free_shm_ipc(priv);
qtnf_debugfs_remove(bus);
priv->remove_cb(bus);
pci_set_drvdata(priv->pdev, NULL);
}
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;
}