> -----Original Message----- > From: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx> > Sent: Wednesday, December 28, 2022 7:30 AM > To: linux-wireless@xxxxxxxxxxxxxxx > Cc: Yan-Hsuan Chuang <tony0620emma@xxxxxxxxx>; Kalle Valo <kvalo@xxxxxxxxxx>; Ulf Hansson > <ulf.hansson@xxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; > linux-mmc@xxxxxxxxxxxxxxx; Chris Morgan <macroalpha82@xxxxxxxxx>; Nitin Gupta <nitin.gupta981@xxxxxxxxx>; > Neo Jou <neojou@xxxxxxxxx>; Ping-Ke Shih <pkshih@xxxxxxxxxxx>; Jernej Skrabec <jernej.skrabec@xxxxxxxxx>; > Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx> > Subject: [RFC PATCH v1 00/19] rtw88: Add SDIO support > > Recently the rtw88 driver has gained locking support for the "slow" bus > types (USB, SDIO) as part of USB support. Thanks to everyone who helped > make this happen! > > Based on the USB work (especially the locking part and various > bugfixes) this series adds support for SDIO based cards. It's the > result of a collaboration between Jernej and myself. Neither of us has > access to the rtw88 datasheets. All of our work is based on studying > the RTL8822BS and RTL8822CS vendor drivers and trial and error. > > Jernej and myself have tested this with RTL8822BS and RTL8822CS cards. > Other users have confirmed that RTL8821CS support is working as well. > RTL8723DS may also work (we tried our best to handle rtw_chip_wcpu_11n > where needed) but has not been tested at this point. > > Jernej's results with a RTL8822BS: > - Main functionality works > - Had a case where no traffic got across the link until he issued a > scan > > My results with a RTL8822CS: > - 2.4GHz and 5GHz bands are both working > - TX throughput on a 5GHz network is between 50 Mbit/s and 90 Mbit/s > - RX throughput on a 5GHz network is at 19 Mbit/s I have a suggestion about RX throughput, please check below registers with vendor driver: REG_RXDMA_AGG_PG_TH REG_TXDMA_PQ_MAP(0x10c) BIT_RXDMA_AGG_EN (bit2) REG_RXDMA_MODE(0290) BIT_DMA_MODE (bit1) Try to adjust AGG_PG_TH to see if it can help. -- Ping-Ke
