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Subject: Re: [PATCH] mt76: mt7915: increase buffer size to receive large MPDUs
To:     Ryder Lee <ryder.lee@mediatek.com>,
        Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Cc:     Shayne Chen <shayne.chen@mediatek.com>,
        linux-wireless@vger.kernel.org, linux-mediatek@lists.infradead.org
References: <00af8edba9bad0e3635ca6024fcf56b3bcd407f8.1608139125.git.ryder.lee@mediatek.com>
From:   Felix Fietkau <nbd@nbd.name>
Message-ID: <9b4df998-b73c-011b-11cc-007785e3fba5@nbd.name>
Date:   Fri, 18 Dec 2020 19:48:58 +0100
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On 2020-12-16 18:24, Ryder Lee wrote:
> This improves 5G/HE Rx performance around 70mbps.
> 
> Tested-by: Chih-Min Chen <chih-min.chen@mediatek.com>
> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
> ---
>  drivers/net/wireless/mediatek/mt76/mt7915/dma.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/dma.c b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
> index 8c1f9c77b14f..a8c783be297f 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
> @@ -203,7 +203,7 @@ int mt7915_dma_init(struct mt7915_dev *dev)
>  {
>  	/* Increase buffer size to receive large VHT/HE MPDUs */
>  	struct mt76_bus_ops *bus_ops;
> -	int rx_buf_size = MT_RX_BUF_SIZE * 2;
> +	int rx_buf_size = MT_RX_BUF_SIZE * 4;
This will not be needed after adding rx decapsulation offload.

- Felix