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Date: Fri, 4 Oct 2024 07:23:56 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Shenwei Wang <shenwei.wang@nxp.com>
Cc: "David S. Miller" <davem@davemloft.net>, Eric Dumazet
 <edumazet@google.com>, Paolo Abeni <pabeni@redhat.com>, Maxime Coquelin
 <mcoquelin.stm32@gmail.com>, horms@kernel.org, Alexandre Torgue
 <alexandre.torgue@foss.st.com>, Jose Abreu <joabreu@synopsys.com>, Ong Boon
 Leong <boon.leong.ong@intel.com>, Wong Vee Khee <vee.khee.wong@intel.com>,
 Chuah Kim Tatt <kim.tatt.chuah@intel.com>, netdev@vger.kernel.org,
 linux-stm32@st-md-mailman.stormreply.com,
 linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev,
 linux-imx@nxp.com, Serge Semin <fancer.lancer@gmail.com>, Andrew Lunn
 <andrew@lunn.ch>
Subject: Re: [PATCH v4 net] net: stmmac: dwmac4: extend timeout for VLAN Tag
 register busy bit check
Message-ID: <20241004072356.5905e684@kernel.org>
In-Reply-To: <20240924205424.573913-1-shenwei.wang@nxp.com>
References: <20240924205424.573913-1-shenwei.wang@nxp.com>
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On Tue, 24 Sep 2024 15:54:24 -0500 Shenwei Wang wrote:
> Increase the timeout for checking the busy bit of the VLAN Tag register
> from 10=C2=B5s to 500ms. This change is necessary to accommodate scenarios
> where Energy Efficient Ethernet (EEE) is enabled.
>=20
> Overnight testing revealed that when EEE is active, the busy bit can
> remain set for up to approximately 300ms. The new 500ms timeout provides
> a safety margin.
>=20
> Fixes: ed64639bc1e0 ("net: stmmac: Add support for VLAN Rx filtering")
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>

FTR this was merged to net as commit 4c1b56671b6.