net: phy: rename PHY_IGNORE_INTERRUPT to PHY_MAC_INTERRUPT

Some internal PHY's have their events like link change reported by the
MAC interrupt. We have PHY_IGNORE_INTERRUPT to deal with this scenario.
I'm not too happy with this name. We don't ignore interrupts, typically
there is no interrupt exposed at a PHY level. So let's rename it to
PHY_MAC_INTERRUPT. This is in line with phy_mac_interrupt(), which is
called from the MAC interrupt handler to handle PHY events.

Signed-off-by: Heiner Kallweit <[e-mail]>
Reviewed-by: Andrew Lunn <[e-mail]>
Acked-by: Florian Fainelli <[e-mail]>
Reviewed-by: Russell King <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

Documentation/networking/phy.rst

···
 Lastly, once the controller is ready to handle network traffic, you call
 phy_start(phydev).  This tells the PAL that you are ready, and configures the
 PHY to connect to the network. If the MAC interrupt of your network driver
-also handles PHY status changes, just set phydev->irq to PHY_IGNORE_INTERRUPT
+also handles PHY status changes, just set phydev->irq to PHY_MAC_INTERRUPT
 before you call phy_start and use phy_mac_interrupt() from the network
 driver. If you don't want to use interrupts, set phydev->irq to PHY_POLL.
 phy_start() enables the PHY interrupts (if applicable) and starts the

drivers/net/ethernet/broadcom/genet/bcmmii.c

···
 	 * those versions of GENET.
 	 */
 	if (priv->internal_phy && !GENET_IS_V5(priv))
-		dev->phydev->irq = PHY_IGNORE_INTERRUPT;
+		dev->phydev->irq = PHY_MAC_INTERRUPT;
 
 	return 0;
 }

drivers/net/ethernet/realtek/r8169_main.c

···
 	new_bus->name = "r8169";
 	new_bus->priv = tp;
 	new_bus->parent = &pdev->dev;
-	new_bus->irq[0] = PHY_IGNORE_INTERRUPT;
+	new_bus->irq[0] = PHY_MAC_INTERRUPT;
 	snprintf(new_bus->id, MII_BUS_ID_SIZE, "r8169-%x", pci_dev_id(pdev));
 
 	new_bus->read = r8169_mdio_read_reg;

drivers/net/ethernet/samsung/sxgbe/sxgbe_mdio.c

···
 			case PHY_POLL:
 				irq_str = "POLL";
 				break;
-			case PHY_IGNORE_INTERRUPT:
-				irq_str = "IGNORE";
+			case PHY_MAC_INTERRUPT:
+				irq_str = "MAC";
 				break;
 			default:
 				sprintf(irq_num, "%d", phy->irq);

drivers/net/mdio/mdio-moxart.c

···
 	snprintf(bus->id, MII_BUS_ID_SIZE, "%s-%d-mii", pdev->name, pdev->id);
 	bus->parent = &pdev->dev;
 
-	/* Setting PHY_IGNORE_INTERRUPT here even if it has no effect,
+	/* Setting PHY_MAC_INTERRUPT here even if it has no effect,
 	 * of_mdiobus_register() sets these PHY_POLL.
 	 * Ideally, the interrupt from MAC controller could be used to
 	 * detect link state changes, not polling, i.e. if there was
···
 	 * interrupt handled in ethernet drivercode.
 	 */
 	for (i = 0; i < PHY_MAX_ADDR; i++)
-		bus->irq[i] = PHY_IGNORE_INTERRUPT;
+		bus->irq[i] = PHY_MAC_INTERRUPT;
 
 	data = bus->priv;
 	data->base = devm_platform_ioremap_resource(pdev, 0);

drivers/net/phy/icplus.c

···
 		genphy_read_status(phydev);
 	else
 		/* Don't need to read status for switch ports */
-		phydev->irq = PHY_IGNORE_INTERRUPT;
+		phydev->irq = PHY_MAC_INTERRUPT;
 
 	return 0;
 }

drivers/net/phy/phy.c

···
 	}
 
 	/* Only re-schedule a PHY state machine change if we are polling the
-	 * PHY, if PHY_IGNORE_INTERRUPT is set, then we will be moving
+	 * PHY, if PHY_MAC_INTERRUPT is set, then we will be moving
 	 * between states from phy_mac_interrupt().
 	 *
 	 * In state PHY_HALTED the PHY gets suspended, so rescheduling the

drivers/net/phy/phy_device.c

···
 	case PHY_POLL:
 		irq_str = "POLL";
 		break;
-	case PHY_IGNORE_INTERRUPT:
-		irq_str = "IGNORE";
+	case PHY_MAC_INTERRUPT:
+		irq_str = "MAC";
 		break;
 	default:
 		snprintf(irq_num, sizeof(irq_num), "%d", phydev->irq);

include/linux/phy.h

···
 
 /*
  * Set phydev->irq to PHY_POLL if interrupts are not supported,
- * or not desired for this PHY.  Set to PHY_IGNORE_INTERRUPT if
- * the attached driver handles the interrupt
+ * or not desired for this PHY.  Set to PHY_MAC_INTERRUPT if
+ * the attached MAC driver handles the interrupt
  */
 #define PHY_POLL		-1
-#define PHY_IGNORE_INTERRUPT	-2
+#define PHY_MAC_INTERRUPT	-2
 
 #define PHY_IS_INTERNAL		0x00000001
 #define PHY_RST_AFTER_CLK_EN	0x00000002
···
  * @phydev: the phy_device struct
  *
  * NOTE: must be kept in sync with addition/removal of PHY_POLL and
- * PHY_IGNORE_INTERRUPT
+ * PHY_MAC_INTERRUPT
  */
 static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
 {
-	return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
+	return phydev->irq != PHY_POLL && phydev->irq != PHY_MAC_INTERRUPT;
 }
 
 /**