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From: Kuppuswamy Sathyanarayanan  <sathyanarayanan.kuppuswamy@linux.intel.com>
To: bhelgaas@google.com
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	ashok.raj@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com,
	knsathya@kernel.org
Subject: [PATCH v11 5/5] PCI/DPC: Move AER/DPC dependency checks out of DPC driver
Date: Mon, 26 Oct 2020 19:57:08 -0700
Message-ID: <f168dcd0b9d475aa6f19f6fb204a8b6997163dc9.1603766889.git.sathyanarayanan.kuppuswamy@linux.intel.com> (raw)
In-Reply-To: <cover.1603766889.git.sathyanarayanan.kuppuswamy@linux.intel.com>
In-Reply-To: <cover.1603766889.git.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          | 4 ----
 drivers/pci/pcie/portdrv_core.c | 1 +
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
index 21f77420632b..a8b922044447 100644
--- a/drivers/pci/pcie/dpc.c
+++ b/drivers/pci/pcie/dpc.c
@@ -283,14 +283,10 @@ void pci_dpc_init(struct pci_dev *pdev)
 static int dpc_probe(struct pcie_device *dev)
 {
 	struct pci_dev *pdev = dev->port;
-	struct pci_host_bridge *host = pci_find_host_bridge(pdev->bus);
 	struct device *device = &dev->device;
 	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;
 
-- 
2.17.1


  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-27  2:57 [PATCH v11 0/5] Simplify PCIe native ownership detection logic Kuppuswamy Sathyanarayanan
2020-10-27  2:57 ` [PATCH v11 1/5] PCI: Conditionally initialize host bridge native_* members Kuppuswamy Sathyanarayanan
2020-10-28  6:09   ` Ethan Zhao
2020-10-28 17:14     ` Kuppuswamy, Sathyanarayanan
2020-10-27  2:57 ` [PATCH v11 2/5] ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set Kuppuswamy Sathyanarayanan
2020-11-25 20:12   ` Bjorn Helgaas
2020-11-25 22:21     ` Kuppuswamy, Sathyanarayanan
2020-11-25 22:25       ` Bjorn Helgaas
2020-11-25 22:38         ` Kuppuswamy, Sathyanarayanan
2020-11-25 20:28   ` Bjorn Helgaas
2020-11-26  0:58     ` Kuppuswamy, Sathyanarayanan
2020-10-27  2:57 ` [PATCH v11 3/5] ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native " Kuppuswamy Sathyanarayanan
2020-11-25 20:50   ` Bjorn Helgaas
2020-10-27  2:57 ` [PATCH v11 4/5] PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic Kuppuswamy Sathyanarayanan
2020-10-28  6:00   ` Ethan Zhao
2020-10-28 17:13     ` Kuppuswamy, Sathyanarayanan
2020-11-02  9:59       ` Ethan Zhao
2020-10-27  2:57 ` Kuppuswamy Sathyanarayanan [this message]
2020-11-13 21:59 ` [PATCH v11 0/5] Simplify PCIe native ownership detection logic Kuppuswamy, Sathyanarayanan

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