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

drivers/pci/quirks.c

+22 −0
Original line number 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[] = {

	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF,

		 reset_intel_82599_sfp_virtfn },

	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID,

		reset_intel_generic_dev },

	{ 0 }