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From: Jijie Shao <shaojijie@huawei.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: <shaojijie@huawei.com>, <davem@davemloft.net>,
	<edumazet@google.com>, <kuba@kernel.org>, <pabeni@redhat.com>,
	<andrew+netdev@lunn.ch>, <horms@kernel.org>,
	<shenjian15@huawei.com>, <wangpeiyang1@huawei.com>,
	<liuyonglong@huawei.com>, <chenhao418@huawei.com>,
	<jonathan.cameron@huawei.com>,
	<shameerali.kolothum.thodi@huawei.com>, <salil.mehta@huawei.com>,
	<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 net-next 1/3] net: hibmcge: support scenario without PHY.
Date: Tue, 24 Jun 2025 09:06:22 +0800	[thread overview]
Message-ID: <96bc6695-5e9a-4a50-8ea6-c4625806af28@huawei.com> (raw)
In-Reply-To: <51a9e27a-8a67-4188-8875-8cd81e34765a@lunn.ch>


on 2025/6/23 15:32, Andrew Lunn wrote:
> On Mon, Jun 23, 2025 at 11:41:27AM +0800, Jijie Shao wrote:
>> Currently, the driver uses phylib to operate PHY by default.
>>
>> On some boards, the PHY device is separated from the MAC device.
>> As a result, the hibmcge driver cannot operate the PHY device.
>>
>> In this patch, the driver determines whether a PHY is available
>> based on register configuration. If no PHY is available,
>> the driver intercepts phylib operations and operates only MAC device.
>
> The standard way to handle a MAC without a PHY is to use
> fixed_link. It is a fake PHY which follows the usual API, so your MAC
> driver does not need to care there is no PHY.
>
>
>      Andrew


Thank you for the guidance,
I will study and use it.

Thanks
Jijie Shao


  reply	other threads:[~2025-06-24  1:06 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-23  3:41 [PATCH v2 net-next 0/3] Support some features for the HIBMCGE driver Jijie Shao
2025-06-23  3:41 ` [PATCH v2 net-next 1/3] net: hibmcge: support scenario without PHY Jijie Shao
2025-06-23  7:32   ` Andrew Lunn
2025-06-24  1:06     ` Jijie Shao [this message]
2025-06-23  3:41 ` [PATCH v2 net-next 2/3] net: hibmcge: adjust the burst len configuration of the MAC controller to improve TX performance Jijie Shao
2025-06-24 10:53   ` Simon Horman
2025-06-23  3:41 ` [PATCH v2 net-next 3/3] net: hibmcge: configure FIFO thresholds according to the MAC controller documentation Jijie Shao
2025-06-24 10:53   ` Simon Horman

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