diff mbox series

[v8,5/5] PCI/DPC: Move AER/DPC dependency checks out of DPC driver

Message ID 12df4f8e6011cdbb5c0064576cb496151ecf8d5f.1595649348.git.sathyanarayanan.kuppuswamy@linux.intel.com (mailing list archive)
State Superseded, archived
Delegated to: Bjorn Helgaas
Headers show
Series Simplify PCIe native ownership detection logic | expand

Commit Message

Kuppuswamy Sathyanarayanan July 25, 2020, 3:58 a.m. UTC 
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>

Currently, AER and DPC Capabilities dependency checks is
distributed between DPC and portdrv service drivers. So move
them out of DPC driver.

Also, since services & PCIE_PORT_SERVICE_AER check already
ensures AER native ownership, no need to add additional
pcie_aer_is_native() check.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
---
 drivers/pci/pcie/dpc.c          | 3 ---
 drivers/pci/pcie/portdrv_core.c | 1 +
 2 files changed, 1 insertion(+), 3 deletions(-)

Comments

Andy Shevchenko July 25, 2020, 10:38 a.m. UTC | #1 
On Sat, Jul 25, 2020 at 7:01 AM
<sathyanarayanan.kuppuswamy@linux.intel.com> wrote:
>
> From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
>
> Currently, AER and DPC Capabilities dependency checks is

are

> distributed between DPC and portdrv service drivers. So move
> them out of DPC driver.
>
> Also, since services & PCIE_PORT_SERVICE_AER check already
> ensures AER native ownership, no need to add additional
> pcie_aer_is_native() check.

...

>         if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_DPC) &&
> +           host->native_dpc &&
>             (host->native_dpc || (services & PCIE_PORT_SERVICE_AER)))
>                 services |= PCIE_PORT_SERVICE_DPC;

Can you elaborate this change, please?
diff mbox series

Patch

diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
index 5b1025a2994d..3efbe43764f3 100644
--- a/drivers/pci/pcie/dpc.c
+++ b/drivers/pci/pcie/dpc.c
@@ -285,9 +285,6 @@  static int dpc_probe(struct pcie_device *dev)
 	int status;
 	u16 ctl, cap;
 
-	if (!pcie_aer_is_native(pdev) && !host->native_dpc)
-		return -ENOTSUPP;
-
 	status = devm_request_threaded_irq(device, dev->irq, dpc_irq,
 					   dpc_handler, IRQF_SHARED,
 					   "pcie-dpc", pdev);
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index e257a2ca3595..ffa1d9fc458e 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -252,6 +252,7 @@  static int get_port_device_capability(struct pci_dev *dev)
 	 * permission to use AER.
 	 */
 	if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_DPC) &&
+	    host->native_dpc &&
 	    (host->native_dpc || (services & PCIE_PORT_SERVICE_AER)))
 		services |= PCIE_PORT_SERVICE_DPC;