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-rw-r--r--include/scsi/libfc.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index f53c8e31d5fb..3ae2a760b4f3 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -35,6 +35,8 @@
#include <scsi/fc_frame.h>
+#define FC_FC4_PROV_SIZE (FC_TYPE_FCP + 1) /* size of tables */
+
/*
* libfc error codes
*/
@@ -179,6 +181,7 @@ struct fc_rport_libfc_priv {
* @rp_mutex: The mutex that protects the remote port
* @retry_work: Handle for retries
* @event_callback: Callback when READY, FAILED or LOGO states complete
+ * @prli_count: Count of open PRLI sessions in providers
* @rcu: Structure used for freeing in an RCU-safe manner
*/
struct fc_rport_priv {
@@ -202,6 +205,7 @@ struct fc_rport_priv {
struct list_head peers;
struct work_struct event_work;
u32 supported_classes;
+ u16 prli_count;
struct rcu_head rcu;
};
@@ -848,6 +852,28 @@ struct fc_lport {
struct delayed_work retry_work;
};
+/**
+ * struct fc4_prov - FC-4 provider registration
+ * @prli: Handler for incoming PRLI
+ * @prlo: Handler for session reset
+ * @recv: Handler for incoming request
+ * @module: Pointer to module. May be NULL.
+ */
+struct fc4_prov {
+ int (*prli)(struct fc_rport_priv *, u32 spp_len,
+ const struct fc_els_spp *spp_in,
+ struct fc_els_spp *spp_out);
+ void (*prlo)(struct fc_rport_priv *);
+ void (*recv)(struct fc_lport *, struct fc_frame *);
+ struct module *module;
+};
+
+/*
+ * Register FC-4 provider with libfc.
+ */
+int fc_fc4_register_provider(enum fc_fh_type type, struct fc4_prov *);
+void fc_fc4_deregister_provider(enum fc_fh_type type, struct fc4_prov *);
+
/*
* FC_LPORT HELPER FUNCTIONS
*****************************/