#define RIO_PW_MSG_SIZE 64
+/*
+ * A component tag value (stored in the component tag CSR) is used as device's
+ * unique identifier assigned during enumeration. Besides being used for
+ * identifying switches (which do not have device ID register), it also is used
+ * by error management notification and therefore has to be assigned
+ * to endpoints as well.
+ */
+#define RIO_CTAG_RESRVD 0xfffe0000 /* Reserved */
+#define RIO_CTAG_UDEVID 0x0001ffff /* Unique device identifier */
+
extern struct bus_type rio_bus_type;
extern struct device rio_bus;
extern struct list_head rio_devices; /* list of all devices */
struct rio_mport;
+struct rio_dev;
union rio_pw_msg;
+/**
+ * struct rio_switch - RIO switch info
+ * @node: Node in global list of switches
+ * @switchid: Switch ID that is unique across a network
+ * @route_table: Copy of switch routing table
+ * @port_ok: Status of each port (one bit per port) - OK=1 or UNINIT=0
+ * @add_entry: Callback for switch-specific route add function
+ * @get_entry: Callback for switch-specific route get function
+ * @clr_table: Callback for switch-specific clear route table function
+ * @set_domain: Callback for switch-specific domain setting function
+ * @get_domain: Callback for switch-specific domain get function
+ * @em_init: Callback for switch-specific error management init function
+ * @em_handle: Callback for switch-specific error management handler function
+ * @sw_sysfs: Callback that initializes switch-specific sysfs attributes
+ * @nextdev: Array of per-port pointers to the next attached device
+ */
+struct rio_switch {
+ struct list_head node;
+ u16 switchid;
+ u8 *route_table;
+ u32 port_ok;
+ int (*add_entry) (struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 route_port);
+ int (*get_entry) (struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 *route_port);
+ int (*clr_table) (struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table);
+ int (*set_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
+ u8 sw_domain);
+ int (*get_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
+ u8 *sw_domain);
+ int (*em_init) (struct rio_dev *dev);
+ int (*em_handle) (struct rio_dev *dev, u8 swport);
+ int (*sw_sysfs) (struct rio_dev *dev, int create);
+ struct rio_dev *nextdev[0];
+};
+
/**
* struct rio_dev - RIO device info
* @global_list: Node in list of all RIO devices
* @phys_efptr: RIO device extended features pointer
* @em_efptr: RIO Error Management features pointer
* @dma_mask: Mask of bits of RIO address this device implements
- * @rswitch: Pointer to &struct rio_switch if valid for this device
* @driver: Driver claiming this device
* @dev: Device model device
* @riores: RIO resources this device owns
* @pwcback: port-write callback function for this device
- * @destid: Network destination ID
+ * @destid: Network destination ID (or associated destid for switch)
+ * @hopcount: Hopcount to this device
* @prev: Previous RIO device connected to the current one
+ * @rswitch: struct rio_switch (if valid for this device)
*/
struct rio_dev {
struct list_head global_list; /* node in list of all RIO devices */
u32 phys_efptr;
u32 em_efptr;
u64 dma_mask;
- struct rio_switch *rswitch; /* RIO switch info */
struct rio_driver *driver; /* RIO driver claiming this device */
struct device dev; /* LDM device structure */
struct resource riores[RIO_MAX_DEV_RESOURCES];
int (*pwcback) (struct rio_dev *rdev, union rio_pw_msg *msg, int step);
u16 destid;
+ u8 hopcount;
struct rio_dev *prev;
+ struct rio_switch rswitch[0]; /* RIO switch info */
};
#define rio_dev_g(n) list_entry(n, struct rio_dev, global_list)
#define rio_dev_f(n) list_entry(n, struct rio_dev, net_list)
#define to_rio_dev(n) container_of(n, struct rio_dev, dev)
+#define sw_to_rio_dev(n) container_of(n, struct rio_dev, rswitch[0])
/**
* struct rio_msg - RIO message event
#define RIO_SW_SYSFS_CREATE 1 /* Create switch attributes */
#define RIO_SW_SYSFS_REMOVE 0 /* Remove switch attributes */
-/**
- * struct rio_switch - RIO switch info
- * @node: Node in global list of switches
- * @rdev: Associated RIO device structure
- * @switchid: Switch ID that is unique across a network
- * @hopcount: Hopcount to this switch
- * @destid: Associated destid in the path
- * @route_table: Copy of switch routing table
- * @port_ok: Status of each port (one bit per port) - OK=1 or UNINIT=0
- * @add_entry: Callback for switch-specific route add function
- * @get_entry: Callback for switch-specific route get function
- * @clr_table: Callback for switch-specific clear route table function
- * @set_domain: Callback for switch-specific domain setting function
- * @get_domain: Callback for switch-specific domain get function
- * @em_init: Callback for switch-specific error management initialization function
- * @em_handle: Callback for switch-specific error management handler function
- * @sw_sysfs: Callback that initializes switch-specific sysfs attributes
- * @nextdev: Array of per-port pointers to the next attached device
- */
-struct rio_switch {
- struct list_head node;
- struct rio_dev *rdev;
- u16 switchid;
- u16 hopcount;
- u16 destid;
- u8 *route_table;
- u32 port_ok;
- int (*add_entry) (struct rio_mport * mport, u16 destid, u8 hopcount,
- u16 table, u16 route_destid, u8 route_port);
- int (*get_entry) (struct rio_mport * mport, u16 destid, u8 hopcount,
- u16 table, u16 route_destid, u8 * route_port);
- int (*clr_table) (struct rio_mport *mport, u16 destid, u8 hopcount,
- u16 table);
- int (*set_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
- u8 sw_domain);
- int (*get_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
- u8 *sw_domain);
- int (*em_init) (struct rio_dev *dev);
- int (*em_handle) (struct rio_dev *dev, u8 swport);
- int (*sw_sysfs) (struct rio_dev *dev, int create);
- struct rio_dev *nextdev[0];
-};
-
/* Low-level architecture-dependent routines */
/**
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