mirror of
https://github.com/armbian/build.git
synced 2025-08-11 21:56:58 +02:00
3048cc2107
* sunxi-5.18: initial state: add patches megous * sunxi-5.18: Adapt patches for error-free application * remove unused patches * Add the ability to compile sunxi-5.18
87 lines
3.1 KiB
Diff
87 lines
3.1 KiB
Diff
From b2c3219bc102dbd287b3858872fe2d0d0c2f3347 Mon Sep 17 00:00:00 2001
|
|
From: Ping-Ke Shih <pkshih@realtek.com>
|
|
Date: Thu, 21 Apr 2022 20:08:53 +0800
|
|
Subject: [PATCH 469/515] rtw89: pci: add a separate interrupt handler for low
|
|
power mode
|
|
|
|
In lower power mode, there are very low amount of RX, and it must process
|
|
in a separated function instead of schedule_napi(), because the existing
|
|
napi_poll does many things to optimize performance, but not all registers
|
|
can access in low power mode. The simple way is to use threadfn to process
|
|
the simple thing.
|
|
|
|
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
|
|
Signed-off-by: Kalle Valo <kvalo@kernel.org>
|
|
Link: https://lore.kernel.org/r/20220421120903.73715-5-pkshih@realtek.com
|
|
---
|
|
drivers/net/wireless/realtek/rtw89/core.c | 3 +++
|
|
drivers/net/wireless/realtek/rtw89/pci.c | 23 +++++++++++++++++++++++
|
|
2 files changed, 26 insertions(+)
|
|
|
|
diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
|
|
index 89506daa54cc..e2f8551ed1df 100644
|
|
--- a/drivers/net/wireless/realtek/rtw89/core.c
|
|
+++ b/drivers/net/wireless/realtek/rtw89/core.c
|
|
@@ -1420,7 +1420,10 @@ static void rtw89_core_rx_to_mac80211(struct rtw89_dev *rtwdev,
|
|
{
|
|
rtw89_core_hw_to_sband_rate(rx_status);
|
|
rtw89_core_rx_stats(rtwdev, phy_ppdu, desc_info, skb_ppdu);
|
|
+ /* In low power mode, it does RX in thread context. */
|
|
+ local_bh_disable();
|
|
ieee80211_rx_napi(rtwdev->hw, NULL, skb_ppdu, &rtwdev->napi);
|
|
+ local_bh_enable();
|
|
rtwdev->napi_budget_countdown--;
|
|
}
|
|
|
|
diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
|
|
index c1bb44bcd48e..e8bcecbe77e1 100644
|
|
--- a/drivers/net/wireless/realtek/rtw89/pci.c
|
|
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
|
|
@@ -713,6 +713,18 @@ static void rtw89_pci_ops_recovery_complete(struct rtw89_dev *rtwdev)
|
|
spin_unlock_irqrestore(&rtwpci->irq_lock, flags);
|
|
}
|
|
|
|
+static void rtw89_pci_low_power_interrupt_handler(struct rtw89_dev *rtwdev)
|
|
+{
|
|
+ struct rtw89_pci *rtwpci = (struct rtw89_pci *)rtwdev->priv;
|
|
+ int budget = NAPI_POLL_WEIGHT;
|
|
+
|
|
+ /* To prevent RXQ get stuck due to run out of budget. */
|
|
+ rtwdev->napi_budget_countdown = budget;
|
|
+
|
|
+ rtw89_pci_poll_rpq_dma(rtwdev, rtwpci, budget);
|
|
+ rtw89_pci_poll_rxq_dma(rtwdev, rtwpci, budget);
|
|
+}
|
|
+
|
|
static irqreturn_t rtw89_pci_interrupt_threadfn(int irq, void *dev)
|
|
{
|
|
struct rtw89_dev *rtwdev = dev;
|
|
@@ -733,6 +745,11 @@ static irqreturn_t rtw89_pci_interrupt_threadfn(int irq, void *dev)
|
|
if (unlikely(rtwpci->under_recovery))
|
|
return IRQ_HANDLED;
|
|
|
|
+ if (unlikely(rtwpci->low_power)) {
|
|
+ rtw89_pci_low_power_interrupt_handler(rtwdev);
|
|
+ goto enable_intr;
|
|
+ }
|
|
+
|
|
if (likely(rtwpci->running)) {
|
|
local_bh_disable();
|
|
napi_schedule(&rtwdev->napi);
|
|
@@ -740,6 +757,12 @@ static irqreturn_t rtw89_pci_interrupt_threadfn(int irq, void *dev)
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
+
|
|
+enable_intr:
|
|
+ spin_lock_irqsave(&rtwpci->irq_lock, flags);
|
|
+ rtw89_chip_enable_intr(rtwdev, rtwpci);
|
|
+ spin_unlock_irqrestore(&rtwpci->irq_lock, flags);
|
|
+ return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t rtw89_pci_interrupt_handler(int irq, void *dev)
|
|
--
|
|
2.35.3
|
|
|