x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pages

[sfrench/cifs-2.6.git] / include / linux / sfp.h

diff --git a/include/linux/sfp.h b/include/linux/sfp.h
index 4a906f560817147127e11da728fd8bed3153241c..e724d5a3dd80e5cee3bb4f31d06d76b3a9cf901e 100644 (file)
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -3,7 +3,7 @@
 
 #include <linux/phy.h>
 
-struct __packed sfp_eeprom_base {
+struct sfp_eeprom_base {
        u8 phys_id;
        u8 phys_ext_id;
        u8 connector;
@@ -165,13 +165,47 @@ struct __packed sfp_eeprom_base {
        char vendor_rev[4];
        union {
                __be16 optical_wavelength;
-               u8 cable_spec;
-       };
+               __be16 cable_compliance;
+               struct {
+#if defined __BIG_ENDIAN_BITFIELD
+                       u8 reserved60_2:6;
+                       u8 fc_pi_4_app_h:1;
+                       u8 sff8431_app_e:1;
+                       u8 reserved61:8;
+#elif defined __LITTLE_ENDIAN_BITFIELD
+                       u8 sff8431_app_e:1;
+                       u8 fc_pi_4_app_h:1;
+                       u8 reserved60_2:6;
+                       u8 reserved61:8;
+#else
+#error Unknown Endian
+#endif
+               } __packed passive;
+               struct {
+#if defined __BIG_ENDIAN_BITFIELD
+                       u8 reserved60_4:4;
+                       u8 fc_pi_4_lim:1;
+                       u8 sff8431_lim:1;
+                       u8 fc_pi_4_app_h:1;
+                       u8 sff8431_app_e:1;
+                       u8 reserved61:8;
+#elif defined __LITTLE_ENDIAN_BITFIELD
+                       u8 sff8431_app_e:1;
+                       u8 fc_pi_4_app_h:1;
+                       u8 sff8431_lim:1;
+                       u8 fc_pi_4_lim:1;
+                       u8 reserved60_4:4;
+                       u8 reserved61:8;
+#else
+#error Unknown Endian
+#endif
+               } __packed active;
+       } __packed;
        u8 reserved62;
        u8 cc_base;
-};
+} __packed;
 
-struct __packed sfp_eeprom_ext {
+struct sfp_eeprom_ext {
        __be16 options;
        u8 br_max;
        u8 br_min;
@@ -181,12 +215,21 @@ struct __packed sfp_eeprom_ext {
        u8 enhopts;
        u8 sff8472_compliance;
        u8 cc_ext;
-};
-
-struct __packed sfp_eeprom_id {
+} __packed;
+
+/**
+ * struct sfp_eeprom_id - raw SFP module identification information
+ * @base: base SFP module identification structure
+ * @ext: extended SFP module identification structure
+ *
+ * See the SFF-8472 specification and related documents for the definition
+ * of these structure members. This can be obtained from
+ * ftp://ftp.seagate.com/sff
+ */
+struct sfp_eeprom_id {
        struct sfp_eeprom_base base;
        struct sfp_eeprom_ext ext;
-};
+} __packed;
 
 /* SFP EEPROM registers */
 enum {
@@ -222,6 +265,7 @@ enum {
        SFP_SFF8472_COMPLIANCE          = 0x5e,
        SFP_CC_EXT                      = 0x5f,
 
+       SFP_PHYS_ID_SFF                 = 0x02,
        SFP_PHYS_ID_SFP                 = 0x03,
        SFP_PHYS_EXT_ID_SFP             = 0x04,
        SFP_CONNECTOR_UNSPEC            = 0x00,
@@ -347,19 +391,32 @@ enum {
        SFP_PAGE                        = 0x7f,
 };
 
-struct device_node;
+struct fwnode_handle;
 struct ethtool_eeprom;
 struct ethtool_modinfo;
 struct net_device;
 struct sfp_bus;
 
+/**
+ * struct sfp_upstream_ops - upstream operations structure
+ * @module_insert: called after a module has been detected to determine
+ *   whether the module is supported for the upstream device.
+ * @module_remove: called after the module has been removed.
+ * @link_down: called when the link is non-operational for whatever
+ *   reason.
+ * @link_up: called when the link is operational.
+ * @connect_phy: called when an I2C accessible PHY has been detected
+ *   on the module.
+ * @disconnect_phy: called when a module with an I2C accessible PHY has
+ *   been removed.
+ */
 struct sfp_upstream_ops {
-       int (*module_insert)(void *, const struct sfp_eeprom_id *id);
-       void (*module_remove)(void *);
-       void (*link_down)(void *);
-       void (*link_up)(void *);
-       int (*connect_phy)(void *, struct phy_device *);
-       void (*disconnect_phy)(void *);
+       int (*module_insert)(void *priv, const struct sfp_eeprom_id *id);
+       void (*module_remove)(void *priv);
+       void (*link_down)(void *priv);
+       void (*link_up)(void *priv);
+       int (*connect_phy)(void *priv, struct phy_device *);
+       void (*disconnect_phy)(void *priv);
 };
 
 #if IS_ENABLED(CONFIG_SFP)
@@ -375,7 +432,7 @@ int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
                          u8 *data);
 void sfp_upstream_start(struct sfp_bus *bus);
 void sfp_upstream_stop(struct sfp_bus *bus);
-struct sfp_bus *sfp_register_upstream(struct device_node *np,
+struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode,
                                      struct net_device *ndev, void *upstream,
                                      const struct sfp_upstream_ops *ops);
 void sfp_unregister_upstream(struct sfp_bus *bus);
@@ -419,7 +476,8 @@ static inline void sfp_upstream_stop(struct sfp_bus *bus)
 {
 }
 
-static inline struct sfp_bus *sfp_register_upstream(struct device_node *np,
+static inline struct sfp_bus *sfp_register_upstream(
+       struct fwnode_handle *fwnode,
        struct net_device *ndev, void *upstream,
        const struct sfp_upstream_ops *ops)
 {