---

yaml
---
r: 127335
b: refs/heads/master
c: 1ca8879
h: refs/heads/master
i:
  127333: 3f5625a
  127331: adb068d
  127327: 63cc816
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f7b7baae6b30ff04124259ff8d7c0c0d281320e6
+refs/heads/master: 1ca887970a3971a22e4875b7c6ad5ae3ce49f61a

trunk/drivers/pci/pci.c

@@ -1789,6 +1789,43 @@ static int __pcie_flr(struct pci_dev *dev, int probe)
 	return 0;
 }
 
+static int __pci_af_flr(struct pci_dev *dev, int probe)
+{
+	int cappos = pci_find_capability(dev, PCI_CAP_ID_AF);
+	u8 status;
+	u8 cap;
+
+	if (!cappos)
+		return -ENOTTY;
+	pci_read_config_byte(dev, cappos + PCI_AF_CAP, &cap);
+	if (!(cap & PCI_AF_CAP_TP) || !(cap & PCI_AF_CAP_FLR))
+		return -ENOTTY;
+
+	if (probe)
+		return 0;
+
+	pci_block_user_cfg_access(dev);
+
+	/* Wait for Transaction Pending bit clean */
+	msleep(100);
+	pci_read_config_byte(dev, cappos + PCI_AF_STATUS, &status);
+	if (status & PCI_AF_STATUS_TP) {
+		dev_info(&dev->dev, "Busy after 100ms while trying to"
+				" reset; sleeping for 1 second\n");
+		ssleep(1);
+		pci_read_config_byte(dev,
+				cappos + PCI_AF_STATUS, &status);
+		if (status & PCI_AF_STATUS_TP)
+			dev_info(&dev->dev, "Still busy after 1s; "
+					"proceeding with reset anyway\n");
+	}
+	pci_write_config_byte(dev, cappos + PCI_AF_CTRL, PCI_AF_CTRL_FLR);
+	mdelay(100);
+
+	pci_unblock_user_cfg_access(dev);
+	return 0;
+}
+
 static int __pci_reset_function(struct pci_dev *pdev, int probe)
 {
 	int res;
@@ -1797,6 +1834,10 @@ static int __pci_reset_function(struct pci_dev *pdev, int probe)
 	if (res != -ENOTTY)
 		return res;
 
+	res = __pci_af_flr(pdev, probe);
+	if (res != -ENOTTY)
+		return res;
+
 	return res;
 }