DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C849660740
From:   Kalle Valo <kvalo@codeaurora.org>
To:     <yhchuang@realtek.com>
Cc:     <johannes@sipsolutions.net>, <Larry.Finger@lwfinger.net>,
        <pkshih@realtek.com>, <tehuang@realtek.com>,
        <briannorris@chromium.org>, <sgruszka@redhat.com>,
        <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH v3 00/13] rtw88: mac80211 driver for Realtek 802.11ac wireless network chips
References: <1548654407-28469-1-git-send-email-yhchuang@realtek.com>
Date:   Mon, 28 Jan 2019 10:36:32 +0200
In-Reply-To: <1548654407-28469-1-git-send-email-yhchuang@realtek.com>
        (yhchuang@realtek.com's message of "Mon, 28 Jan 2019 13:46:34 +0800")
Message-ID: <87tvht18mn.fsf@codeaurora.org>
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<yhchuang@realtek.com> writes:

> From: Yan-Hsuan Chuang <yhchuang@realtek.com>
>
> This is a new mac80211 driver for Realtek 802.11ac wireless network chips.
> rtw88 supports 8822BE and 8822CE chips, and will be able to support
> multi-vif combinations in run-time.
>
> For now, only PCI bus is supported, but rtw88 was originally designed
> to optionally support three buses includes USB & SDIO. USB & SDIO modules
> will soon be supported by rtw88, with configurable core module to fit
> with different bus modules in the same time.
>
> For example, if we choose 8822BE and 8822CU, only PCI & USB modules will
> be selected, built, loaded into kernel. This is one of the major
> difference from rtlwifi, which can only support specific combinations.
>
> Another difference from rtlwifi is that rtw88 is designed to support
> the latest Realtek 802.11ac wireless network chips like 8822B and
> 8822C series. Compared to the earlier chips supported by rtlwifi like
> the 802.11n 8192EE chipset or 802.11ac 8821AE/8812AE chips, newer ICs
> have different MAC & PHY settings, such as new multi-port feature for the
> MAC layer design and Jaguar2/Jaguar3 PHY layer IPs.
>
> Multi-Port feature is also supported under rtw88's software architecture.
> rtlwifi can only support one vif in the same time, most because of the
> hardware limitations for early chips, hence the original design of it
> also restricts the usage of multi-vif support, so latest chipset seems not
> take advantages from its new MAC engine.
>
> However, rtw88 can run multiple vifs concurrently by holding them on
> hardware ports provided by MAC engine, hence can easily start different
> roles on a single device.
>
> Based on the reasons mentioned before, we implemented rtw88. It had many
> authors, they are listed here alphabetically:
>
> Ping-Ke Shih <pkshih@realtek.com>
> Tzu-En Huang <tehuang@realtek.com>
> Yan-Hsuan Chuang <yhchuang@realtek.com>
>
>
> v2
>
>  - add comment for watch dog
>
>
> v3
>
>  - change tree location to wireless-next

What does this mean? wireless-next has not been used for years, do you
mean wireless-drivers-next instead?

-- 
Kalle Valo