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Commit c763e7b5 authored by Dexuan Cui's avatar Dexuan Cui Committed by Jesse Barnes
Browse files

PCI: add Intel 82599 Virtual Function specific reset method



Handle device specific timeout and use FLR.

Signed-off-by: default avatarYu Zhao <yu.zhao@intel.com>
Signed-off-by: default avatarDexuan Cui <dexuan.cui@intel.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent aeb30016
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+22 −0
Original line number Original line Diff line number Diff line
@@ -2664,7 +2664,29 @@ static int reset_intel_generic_dev(struct pci_dev *dev, int probe)
	}
	}
}
}


static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe)
{
	int pos;

	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
	if (!pos)
		return -ENOTTY;

	if (probe)
		return 0;

	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL,
				PCI_EXP_DEVCTL_BCR_FLR);
	msleep(100);

	return 0;
}

#define PCI_DEVICE_ID_INTEL_82599_SFP_VF   0x10ed

struct pci_dev_reset_methods pci_dev_reset_methods[] = {
struct pci_dev_reset_methods pci_dev_reset_methods[] = {
	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF,
		 reset_intel_82599_sfp_virtfn },
	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
		reset_intel_generic_dev },
		reset_intel_generic_dev },
	{ 0 }
	{ 0 }