linux-kernel - Re: [PATCH v3 0/4] Add support for MediaTek MT7615 wireless chipsets

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Message-ID: <98c68ec4-bedb-cf6a-9221-eb82a2497e6c@nbd.name>
Date:   Thu, 25 Apr 2019 12:07:05 +0200
From:   Felix Fietkau <nbd@....name>
To:     Ryder Lee <ryder.lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo.bianconi@...hat.com>
Cc:     Roy Luo <royluo@...gle.com>, Sean Wang <sean.wang@...iatek.com>,
        Nelson Chang <nelson.chang@...iatek.com>,
        YF Luo <yf.luo@...iatek.com>, Kai Lin <kai.lin@...iatek.com>,
        Rorscha Yang <rorscha.yang@...iatek.com>,
        Kyle Lee <kyle.lee@...iatek.com>,
        Miller Shen <miller.shen@...iatek.com>,
        Haipin Liang <haipin.liang@...iatek.com>,
        KL Huang <kl.huang@...iatek.com>,
        YH chen <yh.chen@...iatek.com>, linux-wireless@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/4] Add support for MediaTek MT7615 wireless chipsets

On 2019-04-01 09:16, Ryder Lee wrote:
> This adds support for MediaTek MT7615E 4x4 802.11ac PCIe-based chipsets.
> 
> The series is based on the Lorenzo's patches:
> https://patchwork.kernel.org/project/linux-wireless/list/?series=95969
> 
> In the legacy tx arch, we move and store the whole skb content to the
> on-device memory when we send packets via high speed interface. (e.g. PCIe)
> 
> However, MT7615 and the following generation use a new tx arch called
> “cut-through”, which only passes the physical address to the hardware,
> and the packet engine will fetch the packets before transmission.
> 
> It saves on-chip memory for high throughput devices, and the token mechanism
> is used to manage the release of skb under this arch.
> 
> And there might be other (existing or future) chips that use the same driver
> (e.g. mt7622/mt7663...), this is a starting point to unify MTK wireless chipsets.
> 
> Detailed hardware information for this chip could be found on 
> https://wikidevi.com/wiki/MediaTek_MT7615
> 
> Ryder Lee (4):
>   mt76: add mac80211 driver for MT7615 PCIe-based chipsets
>   mt76: add unlikely() for dma_mapping_error() check
>   mt76: use macro for sn and seq_ctrl conversion
>   MAINTAINERS : update entry for mt76 wireless driver
Applied, thanks.

- Felix