netdev - Re: [PATCH v5 2/5] net: rnpgbe: Add n500/n210 chip support

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Message-ID: <77d89708-19a1-4394-bd6b-ca5aef6bafc1@lunn.ch>
Date: Wed, 20 Aug 2025 22:10:00 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Yibo Dong <dong100@...se.com>
Cc: Vadim Fedorenko <vadim.fedorenko@...ux.dev>, andrew+netdev@...n.ch,
	davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, horms@...nel.org, corbet@....net,
	gur.stavi@...wei.com, maddy@...ux.ibm.com, mpe@...erman.id.au,
	danishanwar@...com, lee@...ger.us, gongfan1@...wei.com,
	lorenzo@...nel.org, geert+renesas@...der.be,
	Parthiban.Veerasooran@...rochip.com, lukas.bulwahn@...hat.com,
	alexanderduyck@...com, richardcochran@...il.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org
Subject: Re: [PATCH v5 2/5] net: rnpgbe: Add n500/n210 chip support

On Wed, Aug 20, 2025 at 09:43:41AM +0800, Yibo Dong wrote:
> On Tue, Aug 19, 2025 at 02:59:09PM +0100, Vadim Fedorenko wrote:
> > On 18/08/2025 12:28, Dong Yibo wrote:
> > > Initialize n500/n210 chip bar resource map and
> > > dma, eth, mbx ... info for future use.
> > > 
> > [...]
> > 
> > > +struct mucse_hw {
> > > +	void __iomem *hw_addr;
> > > +	void __iomem *ring_msix_base;
> > > +	struct pci_dev *pdev;
> > > +	enum rnpgbe_hw_type hw_type;
> > > +	struct mucse_dma_info dma;
> > > +	struct mucse_eth_info eth;
> > > +	struct mucse_mac_info mac;
> > > +	struct mucse_mbx_info mbx;
> > > +	u32 usecstocount;
> > 
> > What is this field for? You don't use it anywhere in the patchset apart
> > from initialization. Maybe it's better to introduce it once it's used?
> > Together with the defines of values for this field...
> > 
> 
> It is used to store chip frequency which is used to calculate values
> related to 'delay register' in the future. I will improve this.

Maybe also see if you can find a better name. count is rather
vague. Count of what?

	Andrew