linux-kernel - Re: [PATCH v7 6/9] PCI: dwc: Define maximum number of vectors

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Message-ID: <000001d3dbda$0a135930$1e3a0b90$@gmail.com>
Date:   Tue, 24 Apr 2018 10:39:20 -0400
From:   "Jingoo Han" <jingoohan1@...il.com>
To:     "'Gustavo Pimentel'" <gustavo.pimentel@...opsys.com>,
        <bhelgaas@...gle.com>, <lorenzo.pieralisi@....com>,
        <Joao.Pinto@...opsys.com>, <kishon@...com>, <robh+dt@...nel.org>,
        <mark.rutland@....com>
Cc:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v7 6/9] PCI: dwc: Define maximum number of vectors

On Tuesday, April 24, 2018 9:45 AM, Gustavo Pimentel wrote:
> 
> Adds a callback that defines the maximum number of vectors that can be use
> by the Root Complex.
> 
> Since this is a parameter associated to each SoC IP setting, makes sense
> to
> be configurable and easily visible to future modifications.
> 
> The designware IP supports a maximum of 256 vectors.
> 
> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
> Acked-by: Joao Pinto <jpinto@...opsys.com>

Acked-by: Jingoo Han <jingoohan1@...il.com>

Best regards,
Jingoo Han


> ---
> Change v1->v2:
>  - Nothing changed, just to follow the patch set version.
> Change v2->v3:
>  - Nothing changed, just to follow the patch set version.
> Changes v3->v4:
>  - Nothing changed, just to follow the patch set version.
> Changes v4->v5:
>  - Nothing changed, just to follow the patch set version.
> Changes v5->v6:
>  - Nothing changed, just to follow the patch set version.
> Changes v6->v7:
>  - Nothing changed, just to follow the patch set version.
> 
>  drivers/pci/dwc/pcie-designware-plat.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/pci/dwc/pcie-designware-plat.c
> b/drivers/pci/dwc/pcie-designware-plat.c
> index efc315c..5937fed 100644
> --- a/drivers/pci/dwc/pcie-designware-plat.c
> +++ b/drivers/pci/dwc/pcie-designware-plat.c
> @@ -48,8 +48,14 @@ static int dw_plat_pcie_host_init(struct pcie_port *pp)
>  	return 0;
>  }
> 
> +static void dw_plat_set_num_vectors(struct pcie_port *pp)
> +{
> +	pp->num_vectors = MAX_MSI_IRQS;
> +}
> +
>  static const struct dw_pcie_host_ops dw_plat_pcie_host_ops = {
>  	.host_init = dw_plat_pcie_host_init,
> +	.set_num_vectors = dw_plat_set_num_vectors,
>  };
> 
>  static int dw_plat_pcie_establish_link(struct dw_pcie *pci)
> --
> 2.7.4
>