Thread (33 messages) 33 messages, 3 authors, 2021-10-13

Re: [PATCH v7 00/24] rtw89: add Realtek 802.11ax driver

From: Kalle Valo <hidden>
Date: 2021-10-11 12:06:55

Kalle Valo [off-list ref] writes:
Ping-Ke Shih [off-list ref] writes:
quoted
This driver named rtw89, which is the next generation of rtw88, supports
Realtek 8852AE 802.11ax 2x2 chip whose new features are OFDMA, DBCC,
Spatial reuse, TWT and BSS coloring; now some of them aren't implemented
though.

The chip architecture is entirely different from the chips supported by
rtw88 like RTL8822CE 802.11ac chip. First of all, register address ranges
are totally redefined, so it's impossible to reuse register definition. To
communicate with firmware, new H2C/C2H format is proposed. In order to have
better utilization, TX DMA flow is changed to two stages DMA. To provide
rich RX status information, additional RX PPDU packets are added.

Since there are so many differences mentioned above, we decide to propose
a new driver. It has many authors, they are listed in alphabetic order:

Chin-Yen Lee [off-list ref]
Ping-Ke Shih [off-list ref]
Po Hao Huang [off-list ref]
Tzu-En Huang [off-list ref]
Vincent Fann [off-list ref]
Yan-Hsuan Chuang [off-list ref]
Zong-Zhe Yang [off-list ref]

Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>

v7:
  - use consistent license of Kconfig
  - remove #ifdef and dummy functions from coex.c
  - C2H handler of coex uses meaningful naming insetad, and use le32_to_cpu()
    to convert the value.
  - add icmp packet notify to coex
  - use function call instead of a work to notify coex about traffic changed
  - fix dereference security CAM NULL pointer while disconnecting occasionally
  - fill tx descriptor once a 32 bits word (Suggested by Arnd. Thanks!)
  - use static pci PS, so remove pci link_ps 
  - make many mac tables constant
  - add early_h2c debugfs entry to notify firmware early
  - support new RA report format
  - configure retry_lowest_rate by band
  - avoid to use of whil(1) to parse power sequence
  - notify rfk before/after scanning to reset status
  - firmware: rtw89: 8852a: update fw to v0.13.30.0
    https://github.com/pkshih/linux-firmware.git 
    pick the commit 6595133a7cde82be932067afde834dcd036167f8
I have not reviewed this version yet, but I pushed it to the pending
branch for build testing:

https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git/commit/?h=pending&id=c321740f93af1a31d9e149ce5077e28bd4e859f7

For the final commit my plan is to squash all patches into one big
patch. I will do that after reviewing v7, if everything is ok of course.

Are there more Tested-by or Reviewed-by tags?
I now created one big commit which I'm planning to take to
wireless-drivers-next:

https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git/commit/?h=pending&id=80b361279546ca7a57c7e7844c2e23f474f9852d

Please double check that I didn't break anything while squashing the
patches. I tried to be careful, but you never know.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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