1a59d1b8e0
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* iSCSI Transport BSG Interface
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*
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* Copyright (C) 2009 James Smart, Emulex Corporation
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*/
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#ifndef SCSI_BSG_ISCSI_H
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#define SCSI_BSG_ISCSI_H
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/*
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* This file intended to be included by both kernel and user space
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*/
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#include <scsi/scsi.h>
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/*
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* iSCSI Transport SGIO v4 BSG Message Support
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*/
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/* Default BSG request timeout (in seconds) */
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#define ISCSI_DEFAULT_BSG_TIMEOUT (10 * HZ)
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/*
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* Request Message Codes supported by the iSCSI Transport
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*/
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/* define the class masks for the message codes */
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#define ISCSI_BSG_CLS_MASK 0xF0000000 /* find object class */
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#define ISCSI_BSG_HST_MASK 0x80000000 /* iscsi host class */
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/* iscsi host Message Codes */
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#define ISCSI_BSG_HST_VENDOR (ISCSI_BSG_HST_MASK | 0x000000FF)
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/*
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* iSCSI Host Messages
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*/
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/* ISCSI_BSG_HST_VENDOR : */
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/* Request:
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* Note: When specifying vendor_id, be sure to read the Vendor Type and ID
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* formatting requirements specified in scsi_netlink.h
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*/
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struct iscsi_bsg_host_vendor {
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/*
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* Identifies the vendor that the message is formatted for. This
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* should be the recipient of the message.
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*/
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uint64_t vendor_id;
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/* start of vendor command area */
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uint32_t vendor_cmd[0];
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};
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/* Response:
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*/
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struct iscsi_bsg_host_vendor_reply {
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/* start of vendor response area */
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uint32_t vendor_rsp[0];
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};
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/* request (CDB) structure of the sg_io_v4 */
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struct iscsi_bsg_request {
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uint32_t msgcode;
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union {
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struct iscsi_bsg_host_vendor h_vendor;
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} rqst_data;
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} __attribute__((packed));
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/* response (request sense data) structure of the sg_io_v4 */
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struct iscsi_bsg_reply {
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/*
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* The completion result. Result exists in two forms:
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* if negative, it is an -Exxx system errno value. There will
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* be no further reply information supplied.
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* else, it's the 4-byte scsi error result, with driver, host,
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* msg and status fields. The per-msgcode reply structure
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* will contain valid data.
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*/
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uint32_t result;
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/* If there was reply_payload, how much was recevied ? */
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uint32_t reply_payload_rcv_len;
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union {
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struct iscsi_bsg_host_vendor_reply vendor_reply;
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} reply_data;
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};
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#endif /* SCSI_BSG_ISCSI_H */
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