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[v11,16/16] PCI/AER: Add RCEC AER error injection support

Message ID 20201117191954.1322844-17-sean.v.kelley@intel.com
State New
Headers show
Series Add RCEC handling to PCI/AER | expand

Commit Message

Kelley, Sean V Nov. 17, 2020, 7:19 p.m. UTC
From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>

Root Complex Event Collectors (RCEC) appear as peers to Root Ports and may
also have the AER capability.

Add RCEC support to the AER error injection driver.

Co-developed-by: Sean V Kelley <sean.v.kelley@intel.com>
Link: https://lore.kernel.org/r/20201002184735.1229220-15-seanvk.dev@oregontracks.org
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pcie/aer_inject.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Comments

Kuppuswamy, Sathyanarayanan Nov. 18, 2020, 6:02 a.m. UTC | #1
On 11/17/20 11:19 AM, Sean V Kelley wrote:
> From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
> 
> Root Complex Event Collectors (RCEC) appear as peers to Root Ports and may
> also have the AER capability.
> 
> Add RCEC support to the AER error injection driver.
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
> 
> Co-developed-by: Sean V Kelley <sean.v.kelley@intel.com>
> Link: https://lore.kernel.org/r/20201002184735.1229220-15-seanvk.dev@oregontracks.org
> Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
> Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
>   drivers/pci/pcie/aer_inject.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/pcie/aer_inject.c b/drivers/pci/pcie/aer_inject.c
> index c2cbf425afc5..767f8859b99b 100644
> --- a/drivers/pci/pcie/aer_inject.c
> +++ b/drivers/pci/pcie/aer_inject.c
> @@ -333,8 +333,11 @@ static int aer_inject(struct aer_error_inj *einj)
>   	if (!dev)
>   		return -ENODEV;
>   	rpdev = pcie_find_root_port(dev);
> +	/* If Root Port not found, try to find an RCEC */
> +	if (!rpdev)
> +		rpdev = dev->rcec;
>   	if (!rpdev) {
> -		pci_err(dev, "Root port not found\n");
> +		pci_err(dev, "Neither Root Port nor RCEC found\n");
>   		ret = -ENODEV;
>   		goto out_put;
>   	}
>
diff mbox series

Patch

diff --git a/drivers/pci/pcie/aer_inject.c b/drivers/pci/pcie/aer_inject.c
index c2cbf425afc5..767f8859b99b 100644
--- a/drivers/pci/pcie/aer_inject.c
+++ b/drivers/pci/pcie/aer_inject.c
@@ -333,8 +333,11 @@  static int aer_inject(struct aer_error_inj *einj)
 	if (!dev)
 		return -ENODEV;
 	rpdev = pcie_find_root_port(dev);
+	/* If Root Port not found, try to find an RCEC */
+	if (!rpdev)
+		rpdev = dev->rcec;
 	if (!rpdev) {
-		pci_err(dev, "Root port not found\n");
+		pci_err(dev, "Neither Root Port nor RCEC found\n");
 		ret = -ENODEV;
 		goto out_put;
 	}