Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index 021fc65..300ecdb 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -54,6 +54,21 @@
unsigned int an_complete:1;
};
+enum phylink_op_type {
+ PHYLINK_NETDEV = 0,
+ PHYLINK_DEV,
+};
+
+/**
+ * struct phylink_config - PHYLINK configuration structure
+ * @dev: a pointer to a struct device associated with the MAC
+ * @type: operation type of PHYLINK instance
+ */
+struct phylink_config {
+ struct device *dev;
+ enum phylink_op_type type;
+};
+
/**
* struct phylink_mac_ops - MAC operations structure.
* @validate: Validate and update the link configuration.
@@ -66,16 +81,17 @@
* The individual methods are described more fully below.
*/
struct phylink_mac_ops {
- void (*validate)(struct net_device *ndev, unsigned long *supported,
+ void (*validate)(struct phylink_config *config,
+ unsigned long *supported,
struct phylink_link_state *state);
- int (*mac_link_state)(struct net_device *ndev,
+ int (*mac_link_state)(struct phylink_config *config,
struct phylink_link_state *state);
- void (*mac_config)(struct net_device *ndev, unsigned int mode,
+ void (*mac_config)(struct phylink_config *config, unsigned int mode,
const struct phylink_link_state *state);
- void (*mac_an_restart)(struct net_device *ndev);
- void (*mac_link_down)(struct net_device *ndev, unsigned int mode,
+ void (*mac_an_restart)(struct phylink_config *config);
+ void (*mac_link_down)(struct phylink_config *config, unsigned int mode,
phy_interface_t interface);
- void (*mac_link_up)(struct net_device *ndev, unsigned int mode,
+ void (*mac_link_up)(struct phylink_config *config, unsigned int mode,
phy_interface_t interface,
struct phy_device *phy);
};
@@ -83,7 +99,7 @@
#if 0 /* For kernel-doc purposes only. */
/**
* validate - Validate and update the link configuration
- * @ndev: a pointer to a &struct net_device for the MAC.
+ * @config: a pointer to a &struct phylink_config.
* @supported: ethtool bitmask for supported link modes.
* @state: a pointer to a &struct phylink_link_state.
*
@@ -93,19 +109,26 @@
* Note that the PHY may be able to transform from one connection
* technology to another, so, eg, don't clear 1000BaseX just
* because the MAC is unable to BaseX mode. This is more about
- * clearing unsupported speeds and duplex settings.
+ * clearing unsupported speeds and duplex settings. The port modes
+ * should not be cleared; phylink_set_port_modes() will help with this.
*
* If the @state->interface mode is %PHY_INTERFACE_MODE_1000BASEX
* or %PHY_INTERFACE_MODE_2500BASEX, select the appropriate mode
* based on @state->advertising and/or @state->speed and update
- * @state->interface accordingly.
+ * @state->interface accordingly. See phylink_helper_basex_speed().
+ *
+ * When @state->interface is %PHY_INTERFACE_MODE_NA, phylink expects the
+ * MAC driver to return all supported link modes.
+ *
+ * If the @state->interface mode is not supported, then the @supported
+ * mask must be cleared.
*/
-void validate(struct net_device *ndev, unsigned long *supported,
+void validate(struct phylink_config *config, unsigned long *supported,
struct phylink_link_state *state);
/**
* mac_link_state() - Read the current link state from the hardware
- * @ndev: a pointer to a &struct net_device for the MAC.
+ * @config: a pointer to a &struct phylink_config.
* @state: a pointer to a &struct phylink_link_state.
*
* Read the current link state from the MAC, reporting the current
@@ -114,20 +137,29 @@
* negotiation completion state in @state->an_complete, and link
* up state in @state->link.
*/
-int mac_link_state(struct net_device *ndev,
+int mac_link_state(struct phylink_config *config,
struct phylink_link_state *state);
/**
* mac_config() - configure the MAC for the selected mode and state
- * @ndev: a pointer to a &struct net_device for the MAC.
+ * @config: a pointer to a &struct phylink_config.
* @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
* @state: a pointer to a &struct phylink_link_state.
*
+ * Note - not all members of @state are valid. In particular,
+ * @state->lp_advertising, @state->link, @state->an_complete are never
+ * guaranteed to be correct, and so any mac_config() implementation must
+ * never reference these fields.
+ *
* The action performed depends on the currently selected mode:
*
* %MLO_AN_FIXED, %MLO_AN_PHY:
* Configure the specified @state->speed, @state->duplex and
- * @state->pause (%MLO_PAUSE_TX / %MLO_PAUSE_RX) mode.
+ * @state->pause (%MLO_PAUSE_TX / %MLO_PAUSE_RX) modes over a link
+ * specified by @state->interface. @state->advertising may be used,
+ * but is not required. Other members of @state must be ignored.
+ *
+ * Valid state members: interface, speed, duplex, pause, advertising.
*
* %MLO_AN_INBAND:
* place the link in an inband negotiation mode (such as 802.3z
@@ -149,19 +181,28 @@
* configuration word. Nothing is advertised by the MAC. The MAC is
* responsible for reading the configuration word and configuring
* itself accordingly.
+ *
+ * Valid state members: interface, an_enabled, pause, advertising.
+ *
+ * Implementations are expected to update the MAC to reflect the
+ * requested settings - i.o.w., if nothing has changed between two
+ * calls, no action is expected. If only flow control settings have
+ * changed, flow control should be updated *without* taking the link
+ * down. This "update" behaviour is critical to avoid bouncing the
+ * link up status.
*/
-void mac_config(struct net_device *ndev, unsigned int mode,
+void mac_config(struct phylink_config *config, unsigned int mode,
const struct phylink_link_state *state);
/**
* mac_an_restart() - restart 802.3z BaseX autonegotiation
- * @ndev: a pointer to a &struct net_device for the MAC.
+ * @config: a pointer to a &struct phylink_config.
*/
-void mac_an_restart(struct net_device *ndev);
+void mac_an_restart(struct phylink_config *config);
/**
* mac_link_down() - take the link down
- * @ndev: a pointer to a &struct net_device for the MAC.
+ * @config: a pointer to a &struct phylink_config.
* @mode: link autonegotiation mode
* @interface: link &typedef phy_interface_t mode
*
@@ -170,12 +211,12 @@
* Energy Efficient Ethernet MAC configuration. Interface type
* selection must be done in mac_config().
*/
-void mac_link_down(struct net_device *ndev, unsigned int mode,
+void mac_link_down(struct phylink_config *config, unsigned int mode,
phy_interface_t interface);
/**
* mac_link_up() - allow the link to come up
- * @ndev: a pointer to a &struct net_device for the MAC.
+ * @config: a pointer to a &struct phylink_config.
* @mode: link autonegotiation mode
* @interface: link &typedef phy_interface_t mode
* @phy: any attached phy
@@ -186,13 +227,14 @@
* phy_init_eee() and perform appropriate MAC configuration for EEE.
* Interface type selection must be done in mac_config().
*/
-void mac_link_up(struct net_device *ndev, unsigned int mode,
+void mac_link_up(struct phylink_config *config, unsigned int mode,
phy_interface_t interface,
struct phy_device *phy);
#endif
-struct phylink *phylink_create(struct net_device *, struct fwnode_handle *,
- phy_interface_t iface, const struct phylink_mac_ops *ops);
+struct phylink *phylink_create(struct phylink_config *, struct fwnode_handle *,
+ phy_interface_t iface,
+ const struct phylink_mac_ops *ops);
void phylink_destroy(struct phylink *);
int phylink_connect_phy(struct phylink *, struct phy_device *);
@@ -220,6 +262,7 @@
int phylink_ethtool_set_pauseparam(struct phylink *,
struct ethtool_pauseparam *);
int phylink_get_eee_err(struct phylink *);
+int phylink_init_eee(struct phylink *, bool);
int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);
int phylink_ethtool_set_eee(struct phylink *, struct ethtool_eee *);
int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);