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#ifndef _GPXE_IB_GMA_H
#define _GPXE_IB_GMA_H
/** @file
*
* Infiniband General Management Agent
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/list.h>
#include <gpxe/retry.h>
#include <gpxe/tables.h>
struct ib_device;
struct ib_completion_queue;
struct ib_queue_pair;
union ib_mad;
struct ib_gma;
/** A GMA attribute handler */
struct ib_gma_handler {
/** Management class */
uint8_t mgmt_class;
/** Management class don't-care bits */
uint8_t mgmt_class_ignore;
/** Class version */
uint8_t class_version;
/** Method */
uint8_t method;
/** Response method, or zero */
uint8_t resp_method;
/** Attribute (in network byte order) */
uint16_t attr_id;
/** Handle attribute
*
* @v gma General management agent
* @v mad MAD
* @ret rc Return status code
*
* The handler should modify the MAD as applicable. If the
* handler returns with a non-zero value in the MAD's @c
* method field, it will be sent as a response.
*/
int ( * handle ) ( struct ib_gma *gma, union ib_mad *mad );
};
/** GMA attribute handlers */
#define IB_GMA_HANDLERS __table ( struct ib_gma_handler, "ib_gma_handlers" )
/** Declare a GMA attribute handler */
#define __ib_gma_handler __table_entry ( IB_GMA_HANDLERS, 01 )
/** An Infiniband General Management Agent */
struct ib_gma {
/** Infiniband device */
struct ib_device *ibdev;
/** Completion queue */
struct ib_completion_queue *cq;
/** Queue pair */
struct ib_queue_pair *qp;
/** List of outstanding MAD requests */
struct list_head requests;
};
extern int ib_gma_request ( struct ib_gma *gma, union ib_mad *mad,
struct ib_address_vector *av, int retry );
extern int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
unsigned long qkey );
extern void ib_destroy_gma ( struct ib_gma *gma );
#endif /* _GPXE_IB_GMA_H */
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