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-rw-r--r--gpxe/src/include/gpxe/ib_mi.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/gpxe/src/include/gpxe/ib_mi.h b/gpxe/src/include/gpxe/ib_mi.h
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+++ b/gpxe/src/include/gpxe/ib_mi.h
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+#ifndef _GPXE_IB_MI_H
+#define _GPXE_IB_MI_H
+
+/** @file
+ *
+ * Infiniband management interfaces
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <gpxe/list.h>
+#include <gpxe/retry.h>
+#include <gpxe/tables.h>
+#include <gpxe/infiniband.h>
+
+struct ib_mad_interface;
+struct ib_mad_transaction;
+
+/** An Infiniband management agent */
+struct ib_mad_agent {
+ /** Management class */
+ uint8_t mgmt_class;
+ /** Class version */
+ uint8_t class_version;
+ /** Attribute (in network byte order) */
+ uint16_t attr_id;
+ /** Handle MAD
+ *
+ * @v ibdev Infiniband device
+ * @v mi Management interface
+ * @v mad Received MAD
+ * @v av Source address vector
+ * @ret rc Return status code
+ */
+ void ( * handle ) ( struct ib_device *ibdev,
+ struct ib_mad_interface *mi,
+ union ib_mad *mad,
+ struct ib_address_vector *av );
+};
+
+/** Infiniband management agents */
+#define IB_MAD_AGENTS __table ( struct ib_mad_agent, "ib_mad_agents" )
+
+/** Declare an Infiniband management agent */
+#define __ib_mad_agent __table_entry ( IB_MAD_AGENTS, 01 )
+
+/** Infiniband management transaction operations */
+struct ib_mad_transaction_operations {
+ /** Handle transaction completion
+ *
+ * @v ibdev Infiniband device
+ * @v mi Management interface
+ * @v madx Management transaction
+ * @v rc Status code
+ * @v mad Received MAD (or NULL on error)
+ * @v av Source address vector (or NULL on error)
+ *
+ * The completion handler should in most cases call
+ * ib_destroy_madx() to free up the completed transaction.
+ */
+ void ( * complete ) ( struct ib_device *ibdev,
+ struct ib_mad_interface *mi,
+ struct ib_mad_transaction *madx,
+ int rc, union ib_mad *mad,
+ struct ib_address_vector *av );
+};
+
+/** An Infiniband management transaction */
+struct ib_mad_transaction {
+ /** Associated management interface */
+ struct ib_mad_interface *mi;
+ /** List of transactions */
+ struct list_head list;
+ /** Retry timer */
+ struct retry_timer timer;
+ /** Destination address vector */
+ struct ib_address_vector av;
+ /** MAD being sent */
+ union ib_mad mad;
+ /** Transaction operations */
+ struct ib_mad_transaction_operations *op;
+ /** Owner private data */
+ void *owner_priv;
+};
+
+/** An Infiniband management interface */
+struct ib_mad_interface {
+ /** Infiniband device */
+ struct ib_device *ibdev;
+ /** Completion queue */
+ struct ib_completion_queue *cq;
+ /** Queue pair */
+ struct ib_queue_pair *qp;
+ /** List of management transactions */
+ struct list_head madx;
+};
+
+/**
+ * Set Infiniband management transaction owner-private data
+ *
+ * @v madx Management transaction
+ * @v priv Private data
+ */
+static inline __always_inline void
+ib_madx_set_ownerdata ( struct ib_mad_transaction *madx, void *priv ) {
+ madx->owner_priv = priv;
+}
+
+/**
+ * Get Infiniband management transaction owner-private data
+ *
+ * @v madx Management transaction
+ * @ret priv Private data
+ */
+static inline __always_inline void *
+ib_madx_get_ownerdata ( struct ib_mad_transaction *madx ) {
+ return madx->owner_priv;
+}
+
+extern int ib_mi_send ( struct ib_device *ibdev, struct ib_mad_interface *mi,
+ union ib_mad *mad, struct ib_address_vector *av );
+extern struct ib_mad_transaction *
+ib_create_madx ( struct ib_device *ibdev, struct ib_mad_interface *mi,
+ union ib_mad *mad, struct ib_address_vector *av,
+ struct ib_mad_transaction_operations *op );
+extern void ib_destroy_madx ( struct ib_device *ibdev,
+ struct ib_mad_interface *mi,
+ struct ib_mad_transaction *madx );
+extern struct ib_mad_interface * ib_create_mi ( struct ib_device *ibdev,
+ enum ib_queue_pair_type type );
+extern void ib_destroy_mi ( struct ib_device *ibdev,
+ struct ib_mad_interface *mi );
+
+#endif /* _GPXE_IB_MI_H */