This adds flags to struct pci_dev that can be set to request ignoring
attention and power indicators. This is in prepration for devices that
advertise these capabilities, but do not support it.
Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx>
---
drivers/pci/hotplug/pciehp_hpc.c | 6 ++++++
include/linux/pci.h | 2 ++
2 files changed, 8 insertions(+)
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 08e84d6..3e6646c 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -804,6 +804,12 @@ struct controller *pcie_init(struct pcie_device *dev)
}
ctrl->pcie = dev;
pcie_capability_read_dword(pdev, PCI_EXP_SLTCAP, &slot_cap);
+
+ if (pdev->ignore_aip)
+ slot_cap &= ~PCI_EXP_SLTCAP_AIP;
+ if (pdev->ignore_pip)
+ slot_cap &= ~PCI_EXP_SLTCAP_PIP;
+
ctrl->slot_cap = slot_cap;
mutex_init(&ctrl->ctrl_lock);
init_waitqueue_head(&ctrl->queue);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 9890906..d8bc530 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -308,6 +308,8 @@ struct pci_dev {
powered on/off by the
corresponding bridge */
unsigned int ignore_hotplug:1; /* Ignore hotplug events */
+ unsigned int ignore_aip:1; /* Ignore attention indicator */
+ unsigned int ignore_pip:1; /* Ignore power indicator */
unsigned int d3_delay; /* D3->D0 transition time in ms */
unsigned int d3cold_delay; /* D3cold->D0 transition time in ms */
--
2.7.2
--
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