From: Bjorn Helgaas <helgaas@kernel.org>
To: Yicong Yang <yangyicong@hisilicon.com>
Cc: linux-pci@vger.kernel.org, linuxarm@huawei.com
Subject: Re: [PATCH] PCI/DPC: print IRQ number used by DPC port
Date: Wed, 13 May 2020 15:50:16 -0500 [thread overview]
Message-ID: <20200513205016.GA346608@bjorn-Precision-5520> (raw)
In-Reply-To: <1589018214-52752-1-git-send-email-yangyicong@hisilicon.com>
On Sat, May 09, 2020 at 05:56:54PM +0800, Yicong Yang wrote:
> Add print of IRQ number used by DPC port, like AER/PME does. It
> provides convenience to track DPC interrupts counts of certain
> port from /proc/interrupts.
>
> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Applied to pci/error for v5.8, thanks!
> ---
> drivers/pci/pcie/dpc.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
> index 7621704..ae6b553 100644
> --- a/drivers/pci/pcie/dpc.c
> +++ b/drivers/pci/pcie/dpc.c
> @@ -301,6 +301,7 @@ static int dpc_probe(struct pcie_device *dev)
>
> ctl = (ctl & 0xfff4) | PCI_EXP_DPC_CTL_EN_FATAL | PCI_EXP_DPC_CTL_INT_EN;
> pci_write_config_word(pdev, pdev->dpc_cap + PCI_EXP_DPC_CTL, ctl);
> + pci_info(pdev, "enabled with IRQ %d\n", dev->irq);
>
> pci_info(pdev, "error containment capabilities: Int Msg #%d, RPExt%c PoisonedTLP%c SwTrigger%c RP PIO Log %d, DL_ActiveErr%c\n",
> cap & PCI_EXP_DPC_IRQ, FLAG(cap, PCI_EXP_DPC_CAP_RP_EXT),
> --
> 2.8.1
>
prev parent reply other threads:[~2020-05-13 20:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-09 9:56 [PATCH] PCI/DPC: print IRQ number used by DPC port Yicong Yang
2020-05-13 20:50 ` Bjorn Helgaas [this message]
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