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path: root/drivers/net/wireless/realtek/rtlwifi/pci.c
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Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/pci.c')
-rw-r--r--drivers/net/wireless/realtek/rtlwifi/pci.c94
1 files changed, 35 insertions, 59 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index 11709b6c83f1..d080469264cf 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -155,6 +155,16 @@ static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw)
((u8)init_aspm) == (PCI_EXP_LNKCTL_ASPM_L0S |
PCI_EXP_LNKCTL_ASPM_L1 | PCI_EXP_LNKCTL_CCC))
ppsc->support_aspm = false;
+
+ /* RTL8723BE found on some ASUSTek laptops, such as F441U and
+ * X555UQ with subsystem ID 11ad:1723 are known to output large
+ * amounts of PCIe AER errors during and after boot up, causing
+ * heavy lags, poor network throughput, and occasional lock-ups.
+ */
+ if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8723BE &&
+ (rtlpci->pdev->subsystem_vendor == 0x11ad &&
+ rtlpci->pdev->subsystem_device == 0x1723))
+ ppsc->support_aspm = false;
}
static bool _rtl_pci_platform_switch_device_pci_aspm(
@@ -295,46 +305,6 @@ static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
return status;
}
-static bool rtl_pci_check_buddy_priv(struct ieee80211_hw *hw,
- struct rtl_priv **buddy_priv)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
- struct rtl_priv *tpriv = NULL, *iter;
- struct rtl_pci_priv *tpcipriv = NULL;
-
- if (!list_empty(&rtlpriv->glb_var->glb_priv_list)) {
- list_for_each_entry(iter, &rtlpriv->glb_var->glb_priv_list,
- list) {
- tpcipriv = (struct rtl_pci_priv *)iter->priv;
- rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
- "pcipriv->ndis_adapter.funcnumber %x\n",
- pcipriv->ndis_adapter.funcnumber);
- rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
- "tpcipriv->ndis_adapter.funcnumber %x\n",
- tpcipriv->ndis_adapter.funcnumber);
-
- if (pcipriv->ndis_adapter.busnumber ==
- tpcipriv->ndis_adapter.busnumber &&
- pcipriv->ndis_adapter.devnumber ==
- tpcipriv->ndis_adapter.devnumber &&
- pcipriv->ndis_adapter.funcnumber !=
- tpcipriv->ndis_adapter.funcnumber) {
- tpriv = iter;
- break;
- }
- }
- }
-
- rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
- "find_buddy_priv %d\n", tpriv != NULL);
-
- if (tpriv)
- *buddy_priv = tpriv;
-
- return tpriv != NULL;
-}
-
static void rtl_pci_parse_configuration(struct pci_dev *pdev,
struct ieee80211_hw *hw)
{
@@ -602,8 +572,11 @@ remap:
dma_map_single(&rtlpci->pdev->dev, skb_tail_pointer(skb),
rtlpci->rxbuffersize, DMA_FROM_DEVICE);
bufferaddress = *((dma_addr_t *)skb->cb);
- if (dma_mapping_error(&rtlpci->pdev->dev, bufferaddress))
+ if (dma_mapping_error(&rtlpci->pdev->dev, bufferaddress)) {
+ if (!new_skb)
+ kfree_skb(skb);
return 0;
+ }
rtlpci->rx_ring[rxring_idx].rx_buf[desc_idx] = skb;
if (rtlpriv->use_new_trx_flow) {
/* skb->cb may be 64 bit address */
@@ -832,13 +805,19 @@ new_trx_end:
skb = new_skb;
no_new:
if (rtlpriv->use_new_trx_flow) {
- _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)buffer_desc,
- rxring_idx,
- rtlpci->rx_ring[rxring_idx].idx);
+ if (!_rtl_pci_init_one_rxdesc(hw, skb, (u8 *)buffer_desc,
+ rxring_idx,
+ rtlpci->rx_ring[rxring_idx].idx)) {
+ if (new_skb)
+ dev_kfree_skb_any(skb);
+ }
} else {
- _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)pdesc,
- rxring_idx,
- rtlpci->rx_ring[rxring_idx].idx);
+ if (!_rtl_pci_init_one_rxdesc(hw, skb, (u8 *)pdesc,
+ rxring_idx,
+ rtlpci->rx_ring[rxring_idx].idx)) {
+ if (new_skb)
+ dev_kfree_skb_any(skb);
+ }
if (rtlpci->rx_ring[rxring_idx].idx ==
rtlpci->rxringcount - 1)
rtlpriv->cfg->ops->set_desc(hw, (u8 *)pdesc,
@@ -1696,8 +1675,6 @@ static void rtl_pci_deinit(struct ieee80211_hw *hw)
synchronize_irq(rtlpci->pdev->irq);
tasklet_kill(&rtlpriv->works.irq_tasklet);
cancel_work_sync(&rtlpriv->works.lps_change_work);
-
- destroy_workqueue(rtlpriv->works.rtl_wq);
}
static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)
@@ -2011,7 +1988,6 @@ static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
pcipriv->ndis_adapter.amd_l1_patch);
rtl_pci_parse_configuration(pdev, hw);
- list_add_tail(&rtlpriv->list, &rtlpriv->glb_var->glb_priv_list);
return true;
}
@@ -2158,7 +2134,6 @@ int rtl_pci_probe(struct pci_dev *pdev,
rtlpriv->rtlhal.interface = INTF_PCI;
rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data);
rtlpriv->intf_ops = &rtl_pci_ops;
- rtlpriv->glb_var = &rtl_global_var;
rtl_efuse_ops_init(hw);
/* MEM map */
@@ -2209,7 +2184,7 @@ int rtl_pci_probe(struct pci_dev *pdev,
if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
pr_err("Can't init_sw_vars\n");
err = -ENODEV;
- goto fail3;
+ goto fail2;
}
rtl_init_sw_leds(hw);
@@ -2227,14 +2202,14 @@ int rtl_pci_probe(struct pci_dev *pdev,
err = rtl_pci_init(hw, pdev);
if (err) {
pr_err("Failed to init PCI\n");
- goto fail3;
+ goto fail4;
}
err = ieee80211_register_hw(hw);
if (err) {
pr_err("Can't register mac80211 hw.\n");
err = -ENODEV;
- goto fail3;
+ goto fail5;
}
rtlpriv->mac80211.mac80211_registered = 1;
@@ -2257,16 +2232,19 @@ int rtl_pci_probe(struct pci_dev *pdev,
set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
return 0;
-fail3:
- pci_set_drvdata(pdev, NULL);
+fail5:
+ rtl_pci_deinit(hw);
+fail4:
rtl_deinit_core(hw);
+fail3:
+ wait_for_completion(&rtlpriv->firmware_loading_complete);
+ rtlpriv->cfg->ops->deinit_sw_vars(hw);
fail2:
if (rtlpriv->io.pci_mem_start != 0)
pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
pci_release_regions(pdev);
- complete(&rtlpriv->firmware_loading_complete);
fail1:
if (hw)
@@ -2317,7 +2295,6 @@ void rtl_pci_disconnect(struct pci_dev *pdev)
if (rtlpci->using_msi)
pci_disable_msi(rtlpci->pdev);
- list_del(&rtlpriv->list);
if (rtlpriv->io.pci_mem_start != 0) {
pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
pci_release_regions(pdev);
@@ -2376,7 +2353,6 @@ EXPORT_SYMBOL(rtl_pci_resume);
const struct rtl_intf_ops rtl_pci_ops = {
.adapter_start = rtl_pci_start,
.adapter_stop = rtl_pci_stop,
- .check_buddy_priv = rtl_pci_check_buddy_priv,
.adapter_tx = rtl_pci_tx,
.flush = rtl_pci_flush,
.reset_trx_ring = rtl_pci_reset_trx_ring,
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-30 00:27:26 +0300