From c108b4a50dd7650941d4f4ec5c161655a73711db Mon Sep 17 00:00:00 2001 From: Ping-Ke Shih Date: Sun, 21 Jan 2024 15:18:26 +0800 Subject: [PATCH] wifi: rtw89: pci: enlarge RX DMA buffer to consider size of RX descriptor Hardware puts RX descriptor and packet in RX DMA buffer, so it could be over one buffer size if packet size is 11454, and then it will be split into two segments. WiFi 7 chips use larger size of RX descriptor, so enlarge DMA buffer size according to RX descriptor to have better performance and simple flow. Signed-off-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20240121071826.10159-5-pkshih@realtek.com --- drivers/net/wireless/realtek/rtw89/pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw89/pci.h b/drivers/net/wireless/realtek/rtw89/pci.h index 0543221b4c589..532f78eaf6df3 100644 --- a/drivers/net/wireless/realtek/rtw89/pci.h +++ b/drivers/net/wireless/realtek/rtw89/pci.h @@ -997,7 +997,7 @@ #define RTW89_PCI_TXWD_NUM_MAX 512 #define RTW89_PCI_TXWD_PAGE_SIZE 128 #define RTW89_PCI_ADDRINFO_MAX 4 -#define RTW89_PCI_RX_BUF_SIZE 11460 +#define RTW89_PCI_RX_BUF_SIZE (11454 + 40) /* +40 for rtw89_rxdesc_long_v2 */ #define RTW89_PCI_POLL_BDRAM_RST_CNT 100 #define RTW89_PCI_MULTITAG 8 -- 2.30.2