Re: [PATCH 4/5] mt76: mt7915: stop ext_phy queue when mac reset happens

From: Lorenzo Bianconi <lorenzo@kernel.org>
To: Ryder Lee <ryder.lee@mediatek.com>
Cc: Felix Fietkau <nbd@nbd.name>,
	Lorenzo Bianconi <lorenzo.bianconi@redhat.com>,
	Shayne Chen <shayne.chen@mediatek.com>,
	linux-wireless@vger.kernel.org,
	linux-mediatek@lists.infradead.org
Subject: Re: [PATCH 4/5] mt76: mt7915: stop ext_phy queue when mac reset happens
Date: Sat, 27 Feb 2021 11:26:18 +0100	[thread overview]
Message-ID: <YDoeSgKugYwjQw4M@lore-desk> (raw)
In-Reply-To: <20a4b03ba4a347a76df67291680704dfdb7da5d6.1614411256.git.ryder.lee@mediatek.com>

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> Stop Tx burst for ext_phy after mac reset.
> 
> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
> ---
>  drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
> index 6b6ea33bd320..c653cd01b8d8 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
> @@ -1607,9 +1607,10 @@ void mt7915_mac_reset_work(struct work_struct *work)
>  	set_bit(MT76_MCU_RESET, &dev->mphy.state);
>  	wake_up(&dev->mt76.mcu.wait);
>  	cancel_delayed_work_sync(&dev->mphy.mac_work);
> -	if (phy2)
> +	if (phy2) {
> +		set_bit(MT76_RESET, &phy2->mt76->state);
>  		cancel_delayed_work_sync(&phy2->mt76->mac_work);

same question here as mt7615, do we really need this?

Regards,
Lorenzo

> -
> +	}
>  	/* lock/unlock all queues to ensure that no tx is pending */
>  	mt76_txq_schedule_all(&dev->mphy);
>  	if (ext_phy)
> @@ -1637,6 +1638,8 @@ void mt7915_mac_reset_work(struct work_struct *work)
>  
>  	clear_bit(MT76_MCU_RESET, &dev->mphy.state);
>  	clear_bit(MT76_RESET, &dev->mphy.state);
> +	if (phy2)
> +		clear_bit(MT76_RESET, &phy2->mt76->state);
>  
>  	mt76_worker_enable(&dev->mt76.tx_worker);
>  	napi_enable(&dev->mt76.tx_napi);
> -- 
> 2.18.0
> 

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