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wifi: rtw89: pci: enlarge RX DMA buffer to consider size of RX descriptor

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[ Upstream commit c108b4a50d ]

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>
This commit is contained in:
Ping-Ke Shih 2024-01-21 15:18:26 +08:00 committed by Greg Kroah-Hartman
parent 7a71f61ebf
commit 0a6def0576
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/realtek/rtw89/pci.h
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@ -559,7 +559,7 @@
#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