diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtw89/pci.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/pci.c | 78 |
1 files changed, 66 insertions, 12 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c index c2fe5a898dc7..a669f2f843aa 100644 --- a/drivers/net/wireless/realtek/rtw89/pci.c +++ b/drivers/net/wireless/realtek/rtw89/pci.c @@ -228,7 +228,7 @@ int rtw89_pci_sync_skb_for_device_and_validate_rx_info(struct rtw89_dev *rtwdev, struct sk_buff *skb) { struct rtw89_pci_rx_info *rx_info = RTW89_PCI_RX_SKB_CB(skb); - int rx_tag_retry = 100; + int rx_tag_retry = 1000; int ret; do { @@ -2638,6 +2638,10 @@ static void rtw89_pci_set_dbg(struct rtw89_dev *rtwdev) rtw89_write32_set(rtwdev, R_AX_PCIE_DBG_CTRL, B_AX_ASFF_FULL_NO_STK | B_AX_EN_STUCK_DBG); + rtw89_write32_mask(rtwdev, R_AX_PCIE_EXP_CTRL, + B_AX_EN_STUCK_DBG | B_AX_ASFF_FULL_NO_STK, + B_AX_EN_STUCK_DBG); + if (rtwdev->chip->chip_id == RTL8852A) rtw89_write32_set(rtwdev, R_AX_PCIE_EXP_CTRL, B_AX_EN_CHKDSC_NO_RX_STUCK); @@ -3105,17 +3109,26 @@ static bool rtw89_pci_is_dac_compatible_bridge(struct rtw89_dev *rtwdev) return false; } -static void rtw89_pci_cfg_dac(struct rtw89_dev *rtwdev) +static int rtw89_pci_cfg_dac(struct rtw89_dev *rtwdev, bool force) { struct rtw89_pci *rtwpci = (struct rtw89_pci *)rtwdev->priv; + struct pci_dev *pdev = rtwpci->pdev; + int ret; + u8 val; - if (!rtwpci->enable_dac) - return; + if (!rtwpci->enable_dac && !force) + return 0; if (!rtw89_pci_chip_is_manual_dac(rtwdev)) - return; + return 0; + + /* Configure DAC only via PCI config API, not DBI interfaces */ + ret = pci_read_config_byte(pdev, RTW89_PCIE_L1_CTRL, &val); + if (ret) + return ret; - rtw89_pci_config_byte_set(rtwdev, RTW89_PCIE_L1_CTRL, RTW89_PCIE_BIT_EN_64BITS); + val |= RTW89_PCIE_BIT_EN_64BITS; + return pci_write_config_byte(pdev, RTW89_PCIE_L1_CTRL, val); } static int rtw89_pci_setup_mapping(struct rtw89_dev *rtwdev, @@ -3133,13 +3146,16 @@ static int rtw89_pci_setup_mapping(struct rtw89_dev *rtwdev, } if (!rtw89_pci_is_dac_compatible_bridge(rtwdev)) - goto no_dac; + goto try_dac_done; ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(36)); if (!ret) { - rtwpci->enable_dac = true; - rtw89_pci_cfg_dac(rtwdev); - } else { + ret = rtw89_pci_cfg_dac(rtwdev, true); + if (!ret) { + rtwpci->enable_dac = true; + goto try_dac_done; + } + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (ret) { rtw89_err(rtwdev, @@ -3147,7 +3163,7 @@ static int rtw89_pci_setup_mapping(struct rtw89_dev *rtwdev, goto err_release_regions; } } -no_dac: +try_dac_done: resource_len = pci_resource_len(pdev, bar_id); rtwpci->mmap = pci_iomap(pdev, bar_id, resource_len); @@ -4302,7 +4318,7 @@ static void rtw89_pci_l2_hci_ldo(struct rtw89_dev *rtwdev) void rtw89_pci_basic_cfg(struct rtw89_dev *rtwdev, bool resume) { if (resume) - rtw89_pci_cfg_dac(rtwdev); + rtw89_pci_cfg_dac(rtwdev, false); rtw89_pci_disable_eq(rtwdev); rtw89_pci_filter_out(rtwdev); @@ -4341,6 +4357,43 @@ static int __maybe_unused rtw89_pci_resume(struct device *dev) SIMPLE_DEV_PM_OPS(rtw89_pm_ops, rtw89_pci_suspend, rtw89_pci_resume); EXPORT_SYMBOL(rtw89_pm_ops); +static pci_ers_result_t rtw89_pci_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + + netif_device_detach(netdev); + + return PCI_ERS_RESULT_NEED_RESET; +} + +static pci_ers_result_t rtw89_pci_io_slot_reset(struct pci_dev *pdev) +{ + struct ieee80211_hw *hw = pci_get_drvdata(pdev); + struct rtw89_dev *rtwdev = hw->priv; + + rtw89_ser_notify(rtwdev, MAC_AX_ERR_ASSERTION); + + return PCI_ERS_RESULT_RECOVERED; +} + +static void rtw89_pci_io_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + + /* ack any pending wake events, disable PME */ + pci_enable_wake(pdev, PCI_D0, 0); + + netif_device_attach(netdev); +} + +const struct pci_error_handlers rtw89_pci_err_handler = { + .error_detected = rtw89_pci_io_error_detected, + .slot_reset = rtw89_pci_io_slot_reset, + .resume = rtw89_pci_io_resume, +}; +EXPORT_SYMBOL(rtw89_pci_err_handler); + const struct rtw89_pci_gen_def rtw89_pci_gen_ax = { .isr_rdu = B_AX_RDU_INT, .isr_halt_c2h = B_AX_HALT_C2H_INT_EN, @@ -4437,6 +4490,7 @@ int rtw89_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) rtwdev->pci_info = info->bus.pci; rtwdev->hci.ops = &rtw89_pci_ops; rtwdev->hci.type = RTW89_HCI_TYPE_PCIE; + rtwdev->hci.dle_type = RTW89_HCI_DLE_TYPE_PCIE; rtwdev->hci.rpwm_addr = pci_info->rpwm_addr; rtwdev->hci.cpwm_addr = pci_info->cpwm_addr; |