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Message-ID: <1c57b675-1f56-430a-8bf9-4fcc89528bcd@quicinc.com>
Date: Thu, 18 Jan 2024 08:03:38 -0800
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Subject: Re: [PATCH v4 2/2] wifi: ath12k: Introduce the container for mac80211
 hw
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To: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>,
        <ath12k@lists.infradead.org>
CC: <linux-wireless@vger.kernel.org>
References: <20240118010320.3918136-1-quic_periyasa@quicinc.com>
 <20240118010320.3918136-3-quic_periyasa@quicinc.com>
From: Jeff Johnson <quic_jjohnson@quicinc.com>
In-Reply-To: <20240118010320.3918136-3-quic_periyasa@quicinc.com>
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On 1/17/2024 5:03 PM, Karthikeyan Periyasamy wrote:
> To support multi link operation, we need to combine all the link/pdev
> under a single wiphy. This avoids the overhead of synchronization
> across multiple hardware instances in both the cfg80211 and mac80211
> layers. Currently, each link/pdev is registered as separate wiphy,
> tightly coupled with link/pdev/radio (ar) structure. To enable single
> wiphy registration within the chip, we decouple the wiphy data entity from
> the link/pdev/radio (ar) structure and move it under the chip (ab)
> structure with a new data container (ath12k_hw) structure. This approach
> improves scalability for future multi link operation support.
> 
> 		mac80211 hw private data structure diagram
> 		------------------------------------------
> 
> 	Now						After
> 
>  +---------------------+                          +---------------------+
>  |mac80211 hw priv data|                          |mac80211 hw priv data|
>  |                     |                          |                     |
>  |                     |                          |                     |
>  |                     |                          |                     |
>  |                     |                          |   ath12k_hw (ah)    |
>  |                     |                          |                     |
>  |                     |  +------------------->   |                     |
>  |    ath12k (ar)      |                          |   +-------------+   |
>  |                     |                          |   |             |   |
>  |                     |                          |   | ath12k (ar) |   |
>  |                     |                          |   |             |   |
>  |                     |                          |   |             |   |
>  |                     |                          |   +-------------+   |
>  |                     |                          |                     |
>  |                     |                          |                     |
>  +---------------------+                          +---------------------+
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> 
> Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>