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https://github.com/edk2-porting/linux-next.git
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qtnfmac: implement asynchronous firmware loading
In pci probe() function start firmware loading, protocol handshake and driver core initialization, and not wait for completion. Signed-off-by: Sergei Maksimenko <smaksimenko@quantenna.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sergey Matyukevich
Kalle Valo
parent
a34d7bcb73
commit
c3b2f7ca41
@ -59,8 +59,9 @@ struct qtnf_bus {
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char fwname[32];
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struct napi_struct mux_napi;
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struct net_device mux_dev;
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struct completion request_firmware_complete;
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struct completion firmware_init_complete;
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struct workqueue_struct *workqueue;
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struct work_struct fw_work;
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struct work_struct event_work;
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struct mutex bus_lock; /* lock during command/event processing */
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struct dentry *dbg_dir;
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@ -127,7 +127,7 @@ static inline void qtnf_dis_txdone_irq(struct qtnf_pcie_bus_priv *priv)
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spin_unlock_irqrestore(&priv->irq_lock, flags);
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}
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static int qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv)
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static void qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv)
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{
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struct pci_dev *pdev = priv->pdev;
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@ -148,8 +148,6 @@ static int qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv)
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pr_warn("legacy PCIE interrupts enabled\n");
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pci_intx(pdev, 1);
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}
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return 0;
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}
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static void qtnf_deassert_intx(struct qtnf_pcie_bus_priv *priv)
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@ -956,6 +954,98 @@ static const struct qtnf_bus_ops qtnf_pcie_bus_ops = {
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.data_rx_stop = qtnf_pcie_data_rx_stop,
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};
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static int qtnf_dbg_mps_show(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "%d\n", priv->mps);
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return 0;
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}
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static int qtnf_dbg_msi_show(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "%u\n", priv->msi_enabled);
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return 0;
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}
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static int qtnf_dbg_irq_stats(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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u32 reg = readl(PCIE_HDP_INT_EN(priv->pcie_reg_base));
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u32 status;
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seq_printf(s, "pcie_irq_count(%u)\n", priv->pcie_irq_count);
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seq_printf(s, "pcie_irq_tx_count(%u)\n", priv->pcie_irq_tx_count);
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status = reg & PCIE_HDP_INT_TX_BITS;
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seq_printf(s, "pcie_irq_tx_status(%s)\n",
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(status == PCIE_HDP_INT_TX_BITS) ? "EN" : "DIS");
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seq_printf(s, "pcie_irq_rx_count(%u)\n", priv->pcie_irq_rx_count);
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status = reg & PCIE_HDP_INT_RX_BITS;
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seq_printf(s, "pcie_irq_rx_status(%s)\n",
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(status == PCIE_HDP_INT_RX_BITS) ? "EN" : "DIS");
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seq_printf(s, "pcie_irq_uf_count(%u)\n", priv->pcie_irq_uf_count);
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status = reg & PCIE_HDP_INT_HHBM_UF;
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seq_printf(s, "pcie_irq_hhbm_uf_status(%s)\n",
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(status == PCIE_HDP_INT_HHBM_UF) ? "EN" : "DIS");
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return 0;
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}
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static int qtnf_dbg_hdp_stats(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count);
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seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count);
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seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done);
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seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req);
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seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index);
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seq_printf(s, "tx_bd_p_index(%u)\n",
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readl(PCIE_HDP_RX0DMA_CNT(priv->pcie_reg_base))
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& (priv->tx_bd_num - 1));
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seq_printf(s, "tx_bd_w_index(%u)\n", priv->tx_bd_w_index);
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seq_printf(s, "tx queue len(%u)\n",
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CIRC_CNT(priv->tx_bd_w_index, priv->tx_bd_r_index,
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priv->tx_bd_num));
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seq_printf(s, "rx_bd_r_index(%u)\n", priv->rx_bd_r_index);
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seq_printf(s, "rx_bd_p_index(%u)\n",
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readl(PCIE_HDP_TX0DMA_CNT(priv->pcie_reg_base))
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& (priv->rx_bd_num - 1));
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seq_printf(s, "rx_bd_w_index(%u)\n", priv->rx_bd_w_index);
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seq_printf(s, "rx alloc queue len(%u)\n",
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CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
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priv->rx_bd_num));
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return 0;
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}
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static int qtnf_dbg_shm_stats(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "shm_ipc_ep_in.tx_packet_count(%zu)\n",
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priv->shm_ipc_ep_in.tx_packet_count);
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seq_printf(s, "shm_ipc_ep_in.rx_packet_count(%zu)\n",
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priv->shm_ipc_ep_in.rx_packet_count);
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seq_printf(s, "shm_ipc_ep_out.tx_packet_count(%zu)\n",
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priv->shm_ipc_ep_out.tx_timeout_count);
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seq_printf(s, "shm_ipc_ep_out.rx_packet_count(%zu)\n",
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priv->shm_ipc_ep_out.rx_packet_count);
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return 0;
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}
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static int qtnf_ep_fw_send(struct qtnf_pcie_bus_priv *priv, uint32_t size,
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int blk, const u8 *pblk, const u8 *fw)
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{
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@ -1071,81 +1161,94 @@ qtnf_ep_fw_load(struct qtnf_pcie_bus_priv *priv, const u8 *fw, u32 fw_size)
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return 0;
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}
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static void qtnf_firmware_load(const struct firmware *fw, void *context)
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{
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struct qtnf_pcie_bus_priv *priv = (void *)context;
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struct pci_dev *pdev = priv->pdev;
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struct qtnf_bus *bus = pci_get_drvdata(pdev);
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int ret;
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if (!fw) {
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pr_err("failed to get firmware %s\n", bus->fwname);
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goto fw_load_err;
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}
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ret = qtnf_ep_fw_load(priv, fw->data, fw->size);
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if (ret) {
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pr_err("FW upload error\n");
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goto fw_load_err;
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}
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if (qtnf_poll_state(&priv->bda->bda_ep_state, QTN_EP_FW_DONE,
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QTN_FW_DL_TIMEOUT_MS)) {
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pr_err("FW bringup timed out\n");
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goto fw_load_err;
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}
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bus->fw_state = QTNF_FW_STATE_FW_DNLD_DONE;
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pr_info("firmware is up and running\n");
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fw_load_err:
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if (fw)
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release_firmware(fw);
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complete(&bus->request_firmware_complete);
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}
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static int qtnf_bringup_fw(struct qtnf_bus *bus)
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static void qtnf_fw_work_handler(struct work_struct *work)
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{
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struct qtnf_bus *bus = container_of(work, struct qtnf_bus, fw_work);
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struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
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struct pci_dev *pdev = priv->pdev;
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const struct firmware *fw;
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int ret;
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u32 state = QTN_RC_FW_LOADRDY | QTN_RC_FW_QLINK;
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if (flashboot)
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if (flashboot) {
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state |= QTN_RC_FW_FLASHBOOT;
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} else {
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ret = request_firmware(&fw, bus->fwname, &pdev->dev);
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if (ret < 0) {
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pr_err("failed to get firmware %s\n", bus->fwname);
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goto fw_load_fail;
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}
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}
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qtnf_set_state(&priv->bda->bda_rc_state, state);
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if (qtnf_poll_state(&priv->bda->bda_ep_state, QTN_EP_FW_LOADRDY,
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QTN_FW_DL_TIMEOUT_MS)) {
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pr_err("card is not ready\n");
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return -ETIMEDOUT;
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goto fw_load_fail;
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}
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qtnf_clear_state(&priv->bda->bda_ep_state, QTN_EP_FW_LOADRDY);
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if (flashboot) {
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pr_info("Booting FW from flash\n");
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pr_info("booting firmware from flash\n");
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} else {
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pr_info("starting firmware upload: %s\n", bus->fwname);
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if (!qtnf_poll_state(&priv->bda->bda_ep_state, QTN_EP_FW_DONE,
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QTN_FW_DL_TIMEOUT_MS))
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bus->fw_state = QTNF_FW_STATE_FW_DNLD_DONE;
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return 0;
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ret = qtnf_ep_fw_load(priv, fw->data, fw->size);
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release_firmware(fw);
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if (ret) {
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pr_err("firmware upload error\n");
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goto fw_load_fail;
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}
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}
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pr_info("starting firmware upload: %s\n", bus->fwname);
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if (qtnf_poll_state(&priv->bda->bda_ep_state, QTN_EP_FW_DONE,
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QTN_FW_DL_TIMEOUT_MS)) {
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pr_err("firmware bringup timed out\n");
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goto fw_load_fail;
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}
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ret = request_firmware_nowait(THIS_MODULE, 1, bus->fwname, &pdev->dev,
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GFP_KERNEL, priv, qtnf_firmware_load);
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if (ret < 0)
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pr_err("request_firmware_nowait error %d\n", ret);
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else
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ret = 1;
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bus->fw_state = QTNF_FW_STATE_FW_DNLD_DONE;
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pr_info("firmware is up and running\n");
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return ret;
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if (qtnf_poll_state(&priv->bda->bda_ep_state,
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QTN_EP_FW_QLINK_DONE, QTN_FW_QLINK_TIMEOUT_MS)) {
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pr_err("firmware runtime failure\n");
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goto fw_load_fail;
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}
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ret = qtnf_core_attach(bus);
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if (ret) {
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pr_err("failed to attach core\n");
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goto fw_load_fail;
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}
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qtnf_debugfs_init(bus, DRV_NAME);
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qtnf_debugfs_add_entry(bus, "mps", qtnf_dbg_mps_show);
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qtnf_debugfs_add_entry(bus, "msi_enabled", qtnf_dbg_msi_show);
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qtnf_debugfs_add_entry(bus, "hdp_stats", qtnf_dbg_hdp_stats);
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qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats);
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qtnf_debugfs_add_entry(bus, "shm_stats", qtnf_dbg_shm_stats);
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goto fw_load_exit;
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fw_load_fail:
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bus->fw_state = QTNF_FW_STATE_DEAD;
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fw_load_exit:
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complete(&bus->firmware_init_complete);
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put_device(&pdev->dev);
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}
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static void qtnf_bringup_fw_async(struct qtnf_bus *bus)
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{
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struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
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struct pci_dev *pdev = priv->pdev;
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get_device(&pdev->dev);
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INIT_WORK(&bus->fw_work, qtnf_fw_work_handler);
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schedule_work(&bus->fw_work);
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}
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static void qtnf_reclaim_tasklet_fn(unsigned long data)
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@ -1156,98 +1259,6 @@ static void qtnf_reclaim_tasklet_fn(unsigned long data)
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qtnf_en_txdone_irq(priv);
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}
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static int qtnf_dbg_mps_show(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "%d\n", priv->mps);
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return 0;
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}
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static int qtnf_dbg_msi_show(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "%u\n", priv->msi_enabled);
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return 0;
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}
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static int qtnf_dbg_irq_stats(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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u32 reg = readl(PCIE_HDP_INT_EN(priv->pcie_reg_base));
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u32 status;
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seq_printf(s, "pcie_irq_count(%u)\n", priv->pcie_irq_count);
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seq_printf(s, "pcie_irq_tx_count(%u)\n", priv->pcie_irq_tx_count);
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status = reg & PCIE_HDP_INT_TX_BITS;
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seq_printf(s, "pcie_irq_tx_status(%s)\n",
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(status == PCIE_HDP_INT_TX_BITS) ? "EN" : "DIS");
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seq_printf(s, "pcie_irq_rx_count(%u)\n", priv->pcie_irq_rx_count);
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status = reg & PCIE_HDP_INT_RX_BITS;
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seq_printf(s, "pcie_irq_rx_status(%s)\n",
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(status == PCIE_HDP_INT_RX_BITS) ? "EN" : "DIS");
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seq_printf(s, "pcie_irq_uf_count(%u)\n", priv->pcie_irq_uf_count);
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status = reg & PCIE_HDP_INT_HHBM_UF;
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seq_printf(s, "pcie_irq_hhbm_uf_status(%s)\n",
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(status == PCIE_HDP_INT_HHBM_UF) ? "EN" : "DIS");
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return 0;
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}
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static int qtnf_dbg_hdp_stats(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count);
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seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count);
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seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done);
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seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req);
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seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index);
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seq_printf(s, "tx_bd_p_index(%u)\n",
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readl(PCIE_HDP_RX0DMA_CNT(priv->pcie_reg_base))
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& (priv->tx_bd_num - 1));
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seq_printf(s, "tx_bd_w_index(%u)\n", priv->tx_bd_w_index);
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seq_printf(s, "tx queue len(%u)\n",
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CIRC_CNT(priv->tx_bd_w_index, priv->tx_bd_r_index,
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priv->tx_bd_num));
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seq_printf(s, "rx_bd_r_index(%u)\n", priv->rx_bd_r_index);
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seq_printf(s, "rx_bd_p_index(%u)\n",
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readl(PCIE_HDP_TX0DMA_CNT(priv->pcie_reg_base))
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& (priv->rx_bd_num - 1));
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seq_printf(s, "rx_bd_w_index(%u)\n", priv->rx_bd_w_index);
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seq_printf(s, "rx alloc queue len(%u)\n",
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CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
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priv->rx_bd_num));
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return 0;
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}
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static int qtnf_dbg_shm_stats(struct seq_file *s, void *data)
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{
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struct qtnf_bus *bus = dev_get_drvdata(s->private);
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struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
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seq_printf(s, "shm_ipc_ep_in.tx_packet_count(%zu)\n",
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priv->shm_ipc_ep_in.tx_packet_count);
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seq_printf(s, "shm_ipc_ep_in.rx_packet_count(%zu)\n",
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priv->shm_ipc_ep_in.rx_packet_count);
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seq_printf(s, "shm_ipc_ep_out.tx_packet_count(%zu)\n",
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priv->shm_ipc_ep_out.tx_timeout_count);
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seq_printf(s, "shm_ipc_ep_out.rx_packet_count(%zu)\n",
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priv->shm_ipc_ep_out.rx_packet_count);
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return 0;
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}
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static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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{
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struct qtnf_pcie_bus_priv *pcie_priv;
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@ -1256,10 +1267,8 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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bus = devm_kzalloc(&pdev->dev,
|
||||
sizeof(*bus) + sizeof(*pcie_priv), GFP_KERNEL);
|
||||
if (!bus) {
|
||||
ret = -ENOMEM;
|
||||
goto err_init;
|
||||
}
|
||||
if (!bus)
|
||||
return -ENOMEM;
|
||||
|
||||
pcie_priv = get_bus_priv(bus);
|
||||
|
||||
@ -1270,7 +1279,7 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
pcie_priv->pdev = pdev;
|
||||
|
||||
strcpy(bus->fwname, QTN_PCI_PEARL_FW_NAME);
|
||||
init_completion(&bus->request_firmware_complete);
|
||||
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);
|
||||
@ -1286,11 +1295,18 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
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_priv;
|
||||
goto err_init;
|
||||
}
|
||||
|
||||
if (!pci_is_pcie(pdev)) {
|
||||
@ -1320,12 +1336,7 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
}
|
||||
|
||||
pci_set_master(pdev);
|
||||
|
||||
ret = qtnf_pcie_init_irq(pcie_priv);
|
||||
if (ret < 0) {
|
||||
pr_err("irq init failed\n");
|
||||
goto err_base;
|
||||
}
|
||||
qtnf_pcie_init_irq(pcie_priv);
|
||||
|
||||
ret = qtnf_pcie_init_memory(pcie_priv);
|
||||
if (ret < 0) {
|
||||
@ -1344,7 +1355,7 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
ret = qtnf_pcie_init_xfer(pcie_priv);
|
||||
if (ret) {
|
||||
pr_err("PCIE xfer init failed\n");
|
||||
goto err_base;
|
||||
goto err_ipc;
|
||||
}
|
||||
|
||||
/* init default irq settings */
|
||||
@ -1360,58 +1371,25 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
goto err_xfer;
|
||||
}
|
||||
|
||||
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);
|
||||
|
||||
ret = qtnf_bringup_fw(bus);
|
||||
if (ret < 0)
|
||||
goto err_bringup_fw;
|
||||
else if (ret)
|
||||
wait_for_completion(&bus->request_firmware_complete);
|
||||
|
||||
if (bus->fw_state != QTNF_FW_STATE_FW_DNLD_DONE) {
|
||||
pr_err("failed to start FW\n");
|
||||
goto err_bringup_fw;
|
||||
}
|
||||
|
||||
if (qtnf_poll_state(&pcie_priv->bda->bda_ep_state, QTN_EP_FW_QLINK_DONE,
|
||||
QTN_FW_QLINK_TIMEOUT_MS)) {
|
||||
pr_err("FW runtime failure\n");
|
||||
goto err_bringup_fw;
|
||||
}
|
||||
|
||||
ret = qtnf_core_attach(bus);
|
||||
if (ret) {
|
||||
pr_err("failed to attach core\n");
|
||||
goto err_bringup_fw;
|
||||
}
|
||||
|
||||
qtnf_debugfs_init(bus, DRV_NAME);
|
||||
qtnf_debugfs_add_entry(bus, "mps", qtnf_dbg_mps_show);
|
||||
qtnf_debugfs_add_entry(bus, "msi_enabled", qtnf_dbg_msi_show);
|
||||
qtnf_debugfs_add_entry(bus, "hdp_stats", qtnf_dbg_hdp_stats);
|
||||
qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats);
|
||||
qtnf_debugfs_add_entry(bus, "shm_stats", qtnf_dbg_shm_stats);
|
||||
qtnf_bringup_fw_async(bus);
|
||||
|
||||
return 0;
|
||||
|
||||
err_bringup_fw:
|
||||
netif_napi_del(&bus->mux_napi);
|
||||
|
||||
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);
|
||||
|
||||
err_priv:
|
||||
pci_set_drvdata(pdev, NULL);
|
||||
netif_napi_del(&bus->mux_napi);
|
||||
|
||||
err_init:
|
||||
tasklet_kill(&pcie_priv->reclaim_tq);
|
||||
pci_set_drvdata(pdev, NULL);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -1424,11 +1402,14 @@ static void qtnf_pcie_remove(struct pci_dev *pdev)
|
||||
if (!bus)
|
||||
return;
|
||||
|
||||
wait_for_completion(&bus->firmware_init_complete);
|
||||
|
||||
if (bus->fw_state == QTNF_FW_STATE_ACTIVE)
|
||||
qtnf_core_detach(bus);
|
||||
|
||||
priv = get_bus_priv(bus);
|
||||
|
||||
qtnf_core_detach(bus);
|
||||
netif_napi_del(&bus->mux_napi);
|
||||
|
||||
flush_workqueue(priv->workqueue);
|
||||
destroy_workqueue(priv->workqueue);
|
||||
tasklet_kill(&priv->reclaim_tq);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user