Revision 73e284d2572581d848267c74552215f95f0f0996 authored by Vineet Gupta on 21 October 2016, 00:49:15 UTC, committed by Vineet Gupta on 28 October 2016, 17:07:43 UTC
On older arc700 cores, some of the features configured were not present in Build config registers. To print about them at boot, we just use the Kconfig option i.e. whether linux is built to use them or not. So yes this seems bogus, but what else can be done. Moreover if linux is booting with these enabled, then the Kconfig info is a good indicator anyways. Over time these "hacks" accumulated in read_arc_build_cfg_regs() as well as arc_cpu_mumbojumbo(). so refactor and move all of those in a single place: read_arc_build_cfg_regs(). This causes some code redcution too: | bloat-o-meter2 arch/arc/kernel/setup.o.0 arch/arc/kernel/setup.o.1 | add/remove: 0/0 grow/shrink: 2/1 up/down: 64/-132 (-68) | function old new delta | setup_processor 610 670 +60 | cpuinfo_arc700 76 80 +4 | arc_cpu_mumbojumbo 752 620 -132 Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
1 parent 711c1f2
scsi_bsg_iscsi.h
/*
* iSCSI Transport BSG Interface
*
* Copyright (C) 2009 James Smart, Emulex Corporation
*
* 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
*
*/
#ifndef SCSI_BSG_ISCSI_H
#define SCSI_BSG_ISCSI_H
/*
* This file intended to be included by both kernel and user space
*/
#include <scsi/scsi.h>
/*
* iSCSI Transport SGIO v4 BSG Message Support
*/
/* Default BSG request timeout (in seconds) */
#define ISCSI_DEFAULT_BSG_TIMEOUT (10 * HZ)
/*
* Request Message Codes supported by the iSCSI Transport
*/
/* define the class masks for the message codes */
#define ISCSI_BSG_CLS_MASK 0xF0000000 /* find object class */
#define ISCSI_BSG_HST_MASK 0x80000000 /* iscsi host class */
/* iscsi host Message Codes */
#define ISCSI_BSG_HST_VENDOR (ISCSI_BSG_HST_MASK | 0x000000FF)
/*
* iSCSI Host Messages
*/
/* ISCSI_BSG_HST_VENDOR : */
/* Request:
* Note: When specifying vendor_id, be sure to read the Vendor Type and ID
* formatting requirements specified in scsi_netlink.h
*/
struct iscsi_bsg_host_vendor {
/*
* Identifies the vendor that the message is formatted for. This
* should be the recipient of the message.
*/
uint64_t vendor_id;
/* start of vendor command area */
uint32_t vendor_cmd[0];
};
/* Response:
*/
struct iscsi_bsg_host_vendor_reply {
/* start of vendor response area */
uint32_t vendor_rsp[0];
};
/* request (CDB) structure of the sg_io_v4 */
struct iscsi_bsg_request {
uint32_t msgcode;
union {
struct iscsi_bsg_host_vendor h_vendor;
} rqst_data;
} __attribute__((packed));
/* response (request sense data) structure of the sg_io_v4 */
struct iscsi_bsg_reply {
/*
* The completion result. Result exists in two forms:
* if negative, it is an -Exxx system errno value. There will
* be no further reply information supplied.
* else, it's the 4-byte scsi error result, with driver, host,
* msg and status fields. The per-msgcode reply structure
* will contain valid data.
*/
uint32_t result;
/* If there was reply_payload, how much was recevied ? */
uint32_t reply_payload_rcv_len;
union {
struct iscsi_bsg_host_vendor_reply vendor_reply;
} reply_data;
};
#endif /* SCSI_BSG_ISCSI_H */
Computing file changes ...
