ib_srp.h

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#ifndef _IPXE_IB_SRP_H
#define _IPXE_IB_SRP_H

/** @file
 *
 * SCSI RDMA Protocol over Infiniband
 *
 */

FILE_LICENCE ( BSD2 );

#include <stdint.h>
#include <ipxe/acpi.h>
#include <ipxe/interface.h>
#include <ipxe/infiniband.h>
#include <ipxe/srp.h>

/** SRP initiator port identifier for Infiniband */
union ib_srp_initiator_port_id {
        /** SRP version of port identifier */
        union srp_port_id srp;
        /** Infiniband version of port identifier */
        struct {
                /** Identifier extension */
                union ib_guid id_ext;
                /** IB channel adapter GUID */
                union ib_guid hca_guid;
        } __attribute__ (( packed )) ib;
};

/** SRP target port identifier for Infiniband */
union ib_srp_target_port_id {
        /** SRP version of port identifier */
        union srp_port_id srp;
        /** Infiniband version of port identifier */
        struct {
                /** Identifier extension */
                union ib_guid id_ext;
                /** I/O controller GUID */
                union ib_guid ioc_guid;
        } __attribute__ (( packed )) ib;
};

/**
 * sBFT Infiniband subtable
 */
struct sbft_ib_subtable {
        /** Source GID */
        union ib_gid sgid;
        /** Destination GID */
        union ib_gid dgid;
        /** Service ID */
        union ib_guid service_id;
        /** Partition key */
        uint16_t pkey;
        /** Reserved */
        uint8_t reserved[6];
} __attribute__ (( packed ));

/**
 * An Infiniband SRP sBFT created by iPXE
 */
struct ipxe_ib_sbft {
        /** The table header */
        struct sbft_table table;
        /** The SCSI subtable */
        struct sbft_scsi_subtable scsi;
        /** The SRP subtable */
        struct sbft_srp_subtable srp;
        /** The Infiniband subtable */
        struct sbft_ib_subtable ib;
};

/** An Infiniband SRP device */
struct ib_srp_device {
        /** Reference count */
        struct refcnt refcnt;

        /** SRP transport interface */
        struct interface srp;
        /** CMRC interface */
        struct interface cmrc;

        /** Infiniband device */
        struct ib_device *ibdev;

        /** ACPI descriptor */
        struct acpi_descriptor desc;
        /** Boot firmware table parameters */
        struct ipxe_ib_sbft sbft;
};

#endif /* _IPXE_IB_SRP_H */