/* SPDX-License-Identifier: GPL-2.0-or-later */ /*****************************************************************************/ /* srp.h -- SCSI RDMA Protocol definitions */ /* */ /* Written By: Colin Devilbis, IBM Corporation */ /* */ /* Copyright (C) 2003 IBM Corporation */ /* */ /* */ /* This file contains structures and definitions for IBM RPA (RS/6000 */ /* platform architecture) implementation of the SRP (SCSI RDMA Protocol) */ /* standard. SRP is used on IBM iSeries and pSeries platforms to send SCSI */ /* commands between logical partitions. */ /* */ /* SRP Information Units (IUs) are sent on a "Command/Response Queue" (CRQ) */ /* between partitions. The definitions in this file are architected, */ /* and cannot be changed without breaking compatibility with other versions */ /* of Linux and other operating systems (AIX, OS/400) that talk this protocol*/ /* between logical partitions */ /*****************************************************************************/ #ifndef VIOSRP_H #define VIOSRP_H #include <scsi/srp.h>
/* * All SRP (and MAD) requests normally flow from the * client to the server. There is no way for the server to send * an asynchronous message back to the client. The Empty IU is used * to hang out a meaningless request to the server so that it can respond * asynchrouously with something like a SCSI AER
*/ struct viosrp_empty_iu { struct mad_common common;
__be64 buffer;
__be32 port;
};
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