diff mbox series

[7/7] wifi: rtw89: pci: update interrupt mitigation register for 8922AE

Message ID 20231110012319.12727-8-pkshih@realtek.com
State New
Headers show
Series wifi: rtw89: pci: add PCI DMA and interrupt stuff for WiFi 7 chips | expand

Commit Message

Ping-Ke Shih Nov. 10, 2023, 1:23 a.m. UTC
To reduce interrupts, configure the mitigation setting of 8922AE when
bringing interface up, and then check situations to decide turning on or
off the function. With this, interrupt count decreases to 20,141 from
202,141 in period of 20 seconds.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/pci.c       | 11 +++++++++--
 drivers/net/wireless/realtek/rtw89/rtw8922ae.c |  1 +
 2 files changed, 10 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index 09de12a9e3c2..0ca07ae63594 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -3620,19 +3620,26 @@  static void rtw89_pci_aspm_set(struct rtw89_dev *rtwdev, bool enable)
 
 static void rtw89_pci_recalc_int_mit(struct rtw89_dev *rtwdev)
 {
+	enum rtw89_chip_gen chip_gen = rtwdev->chip->chip_gen;
 	const struct rtw89_pci_info *info = rtwdev->pci_info;
 	struct rtw89_traffic_stats *stats = &rtwdev->stats;
 	enum rtw89_tfc_lv tx_tfc_lv = stats->tx_tfc_lv;
 	enum rtw89_tfc_lv rx_tfc_lv = stats->rx_tfc_lv;
 	u32 val = 0;
 
-	if (!rtwdev->scanning &&
-	    (tx_tfc_lv >= RTW89_TFC_HIGH || rx_tfc_lv >= RTW89_TFC_HIGH))
+	if (rtwdev->scanning ||
+	    (tx_tfc_lv < RTW89_TFC_HIGH && rx_tfc_lv < RTW89_TFC_HIGH))
+		goto out;
+
+	if (chip_gen == RTW89_CHIP_BE)
+		val = B_BE_PCIE_MIT_RX0P2_EN | B_BE_PCIE_MIT_RX0P1_EN;
+	else
 		val = B_AX_RXMIT_RXP2_SEL | B_AX_RXMIT_RXP1_SEL |
 		      FIELD_PREP(B_AX_RXCOUNTER_MATCH_MASK, RTW89_PCI_RXBD_NUM_MAX / 2) |
 		      FIELD_PREP(B_AX_RXTIMER_UNIT_MASK, AX_RXTIMER_UNIT_64US) |
 		      FIELD_PREP(B_AX_RXTIMER_MATCH_MASK, 2048 / 64);
 
+out:
 	rtw89_write32(rtwdev, info->mit_addr, val);
 }
 
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8922ae.c b/drivers/net/wireless/realtek/rtw89/rtw8922ae.c
index 2a9ad5a254d8..414635d301aa 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8922ae.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8922ae.c
@@ -43,6 +43,7 @@  static const struct rtw89_pci_info rtw8922a_pci_info = {
 
 	.rpwm_addr		= R_BE_PCIE_HRPWM,
 	.cpwm_addr		= R_BE_PCIE_CRPWM,
+	.mit_addr		= R_BE_PCIE_MIT_CH_EN,
 	.tx_dma_ch_mask		= 0,
 	.bd_idx_addr_low_power	= NULL,
 	.dma_addr_set		= &rtw89_pci_ch_dma_addr_set_be,