netdev - Re: [PATCH v2 07/10] net: stmmac: dwmac-loongson: Add LS7A support

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Message-ID: <1bbba61c-19b7-48bb-8c93-0741b43abda5@lunn.ch>
Date: Thu, 27 Jul 2023 11:18:46 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Feiyang Chen <chenfeiyang@...ngson.cn>
Cc: hkallweit1@...il.com, peppe.cavallaro@...com,
	alexandre.torgue@...s.st.com, joabreu@...opsys.com,
	chenhuacai@...ngson.cn, linux@...linux.org.uk, dongbiao@...ngson.cn,
	loongson-kernel@...ts.loongnix.cn, netdev@...r.kernel.org,
	loongarch@...ts.linux.dev, chris.chenfeiyang@...il.com
Subject: Re: [PATCH v2 07/10] net: stmmac: dwmac-loongson: Add LS7A support

> +static void common_default_data(struct pci_dev *pdev,
> +				struct plat_stmmacenet_data *plat)
>  {
> +	plat->bus_id = (pci_domain_nr(pdev->bus) << 16) | PCI_DEVID(pdev->bus->number, pdev->devfn);
> +
>  	plat->clk_csr = 2;	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
>  	plat->has_gmac = 1;
>  	plat->force_sf_dma_mode = 1;
>  
>  	/* Set default value for multicast hash bins */
> -	plat->multicast_filter_bins = HASH_TABLE_SIZE;
> +	plat->multicast_filter_bins = 256;

HASH_TABLE_SIZE is 64. You appear to be changing it to 256 for
everybody, not just your platform. I would expect something like
common_default_data() is called first, and then you change values in a
loongson specific function.

	 Andrew