From: Ping-Ke Shih pkshih@realtek.com
[ Upstream commit c108b4a50dd7650941d4f4ec5c161655a73711db ]
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 pkshih@realtek.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://msgid.link/20240121071826.10159-5-pkshih@realtek.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 179740607778a..d982c5dc0889f 100644 --- a/drivers/net/wireless/realtek/rtw89/pci.h +++ b/drivers/net/wireless/realtek/rtw89/pci.h @@ -546,7 +546,7 @@ #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