netdev - Re: [PATCH, net-next] r8169: Disable some bits on pcie

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Message-ID: <55D5CEA0.2090900@cogentembedded.com>
Date:	Thu, 20 Aug 2015 15:57:04 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Corcodel Marian <corcodel.marian@...il.com>, netdev@...r.kernel.org
Subject: Re: [PATCH, net-next] r8169: Disable some bits on pcie

Hello.

On 8/20/2015 1:12 PM, Corcodel Marian wrote:

> Disable legacy interrupt on pci express interface use msi
>   disable some bits from pci express interface wich is not   need on this nic.
>
>
> Signed-off-by: Corcodel Marian <corcodel.marian@...il.com>
>
> diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
> index 6d16de3..b1fb54f 100644
> --- a/drivers/net/ethernet/realtek/r8169.c
> +++ b/drivers/net/ethernet/realtek/r8169.c
> @@ -8164,6 +8164,13 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
>   	if (!pci_is_pcie(pdev))
>   		netif_info(tp, probe, dev, "not PCI Express\n");
>
> +	if (pci_is_pcie(pdev))
> +		pci_write_config_word(pdev, PCI_COMMAND, ~(PCI_COMMAND_FAST_BACK | PCI_COMMAND_WAIT |
> +					PCI_COMMAND_VGA_PALETTE | PCI_COMMAND_INVALIDATE | PCI_COMMAND_SPECIAL));

    Please start the continuation line under 'pdev' on the first line.

> +
> +	if (pci_is_pcie(pdev))
> +		pci_intx(pdev, 0);
> +

    Why two identical *if* statements? Please make it one.

MBR, Sergei

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