2012-05-20 19:59:13 +04:00
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/*
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* SCSI Primary Commands (SPC) parsing and emulation.
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*
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2013-09-06 02:29:12 +04:00
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* (c) Copyright 2002-2013 Datera, Inc.
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2012-05-20 19:59:13 +04:00
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*
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* Nicholas A. Bellinger <nab@kernel.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <asm/unaligned.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_tcq.h>
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#include <target/target_core_base.h>
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#include <target/target_core_backend.h>
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#include <target/target_core_fabric.h>
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#include "target_core_internal.h"
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2012-05-31 01:09:10 +04:00
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#include "target_core_alua.h"
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2012-05-20 19:59:13 +04:00
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#include "target_core_pr.h"
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#include "target_core_ua.h"
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2013-08-22 23:29:59 +04:00
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#include "target_core_xcopy.h"
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2012-05-20 19:59:13 +04:00
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2012-05-20 19:59:15 +04:00
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static void spc_fill_alua_data(struct se_port *port, unsigned char *buf)
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{
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struct t10_alua_tg_pt_gp *tg_pt_gp;
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struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
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/*
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* Set SCCS for MAINTENANCE_IN + REPORT_TARGET_PORT_GROUPS.
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*/
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buf[5] = 0x80;
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/*
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* Set TPGS field for explict and/or implict ALUA access type
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* and opteration.
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*
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* See spc4r17 section 6.4.2 Table 135
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*/
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if (!port)
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return;
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tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
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if (!tg_pt_gp_mem)
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return;
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spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
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tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
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if (tg_pt_gp)
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buf[5] |= tg_pt_gp->tg_pt_gp_alua_access_type;
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spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
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}
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2012-12-17 12:53:35 +04:00
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sense_reason_t
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spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf)
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2012-05-20 19:59:15 +04:00
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{
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struct se_lun *lun = cmd->se_lun;
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struct se_device *dev = cmd->se_dev;
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/* Set RMB (removable media) for tape devices */
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if (dev->transport->get_device_type(dev) == TYPE_TAPE)
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buf[1] = 0x80;
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2012-10-11 01:37:17 +04:00
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buf[2] = 0x05; /* SPC-3 */
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2012-05-20 19:59:15 +04:00
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/*
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* NORMACA and HISUP = 0, RESPONSE DATA FORMAT = 2
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*
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* SPC4 says:
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* A RESPONSE DATA FORMAT field set to 2h indicates that the
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* standard INQUIRY data is in the format defined in this
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* standard. Response data format values less than 2h are
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* obsolete. Response data format values greater than 2h are
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* reserved.
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*/
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buf[3] = 2;
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/*
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* Enable SCCS and TPGS fields for Emulated ALUA
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*/
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2012-10-11 01:37:16 +04:00
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spc_fill_alua_data(lun->lun_sep, buf);
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2012-05-20 19:59:15 +04:00
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2013-08-23 01:17:20 +04:00
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/*
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* Set Third-Party Copy (3PC) bit to indicate support for EXTENDED_COPY
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*/
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if (dev->dev_attrib.emulate_3pc)
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buf[5] |= 0x8;
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2012-05-20 19:59:15 +04:00
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buf[7] = 0x2; /* CmdQue=1 */
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2013-07-25 03:15:08 +04:00
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memcpy(&buf[8], "LIO-ORG ", 8);
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memset(&buf[16], 0x20, 16);
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memcpy(&buf[16], dev->t10_wwn.model,
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min_t(size_t, strlen(dev->t10_wwn.model), 16));
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memcpy(&buf[32], dev->t10_wwn.revision,
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min_t(size_t, strlen(dev->t10_wwn.revision), 4));
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2012-05-20 19:59:15 +04:00
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buf[4] = 31; /* Set additional length to 31 */
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return 0;
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}
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2012-12-17 12:53:35 +04:00
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EXPORT_SYMBOL(spc_emulate_inquiry_std);
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2012-05-20 19:59:15 +04:00
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/* unit serial number */
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2012-11-07 00:24:09 +04:00
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static sense_reason_t
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spc_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf)
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2012-05-20 19:59:15 +04:00
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{
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struct se_device *dev = cmd->se_dev;
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u16 len = 0;
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2012-10-08 08:03:19 +04:00
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if (dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL) {
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2012-05-20 19:59:15 +04:00
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u32 unit_serial_len;
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2012-10-08 08:03:19 +04:00
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unit_serial_len = strlen(dev->t10_wwn.unit_serial);
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2012-05-20 19:59:15 +04:00
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unit_serial_len++; /* For NULL Terminator */
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2012-10-08 08:03:19 +04:00
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len += sprintf(&buf[4], "%s", dev->t10_wwn.unit_serial);
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2012-05-20 19:59:15 +04:00
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len++; /* Extra Byte for NULL Terminator */
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buf[3] = len;
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}
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return 0;
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}
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2013-08-21 04:02:21 +04:00
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void spc_parse_naa_6h_vendor_specific(struct se_device *dev,
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unsigned char *buf)
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2012-05-20 19:59:15 +04:00
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{
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2012-10-08 08:03:19 +04:00
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unsigned char *p = &dev->t10_wwn.unit_serial[0];
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2012-05-20 19:59:15 +04:00
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int cnt;
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bool next = true;
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/*
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* Generate up to 36 bits of VENDOR SPECIFIC IDENTIFIER starting on
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* byte 3 bit 3-0 for NAA IEEE Registered Extended DESIGNATOR field
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* format, followed by 64 bits of VENDOR SPECIFIC IDENTIFIER EXTENSION
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* to complete the payload. These are based from VPD=0x80 PRODUCT SERIAL
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* NUMBER set via vpd_unit_serial in target_core_configfs.c to ensure
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* per device uniqeness.
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*/
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for (cnt = 0; *p && cnt < 13; p++) {
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int val = hex_to_bin(*p);
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if (val < 0)
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continue;
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if (next) {
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next = false;
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buf[cnt++] |= val;
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} else {
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next = true;
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buf[cnt] = val << 4;
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}
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}
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}
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/*
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* Device identification VPD, for a complete list of
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* DESIGNATOR TYPEs see spc4r17 Table 459.
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*/
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2012-12-17 12:53:35 +04:00
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sense_reason_t
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2012-11-07 00:24:09 +04:00
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spc_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf)
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2012-05-20 19:59:15 +04:00
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{
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struct se_device *dev = cmd->se_dev;
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struct se_lun *lun = cmd->se_lun;
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struct se_port *port = NULL;
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struct se_portal_group *tpg = NULL;
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struct t10_alua_lu_gp_member *lu_gp_mem;
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struct t10_alua_tg_pt_gp *tg_pt_gp;
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struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
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2012-10-08 08:03:19 +04:00
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unsigned char *prod = &dev->t10_wwn.model[0];
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2012-05-20 19:59:15 +04:00
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u32 prod_len;
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u32 unit_serial_len, off = 0;
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u16 len = 0, id_len;
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off = 4;
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/*
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* NAA IEEE Registered Extended Assigned designator format, see
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* spc4r17 section 7.7.3.6.5
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*
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* We depend upon a target_core_mod/ConfigFS provided
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* /sys/kernel/config/target/core/$HBA/$DEV/wwn/vpd_unit_serial
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* value in order to return the NAA id.
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*/
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2012-10-08 08:03:19 +04:00
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if (!(dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL))
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2012-05-20 19:59:15 +04:00
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goto check_t10_vend_desc;
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/* CODE SET == Binary */
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buf[off++] = 0x1;
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/* Set ASSOCIATION == addressed logical unit: 0)b */
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buf[off] = 0x00;
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/* Identifier/Designator type == NAA identifier */
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buf[off++] |= 0x3;
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off++;
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/* Identifier/Designator length */
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buf[off++] = 0x10;
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/*
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* Start NAA IEEE Registered Extended Identifier/Designator
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*/
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buf[off++] = (0x6 << 4);
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/*
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* Use OpenFabrics IEEE Company ID: 00 14 05
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*/
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buf[off++] = 0x01;
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buf[off++] = 0x40;
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buf[off] = (0x5 << 4);
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/*
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* Return ConfigFS Unit Serial Number information for
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* VENDOR_SPECIFIC_IDENTIFIER and
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* VENDOR_SPECIFIC_IDENTIFIER_EXTENTION
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*/
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spc_parse_naa_6h_vendor_specific(dev, &buf[off]);
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len = 20;
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off = (len + 4);
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check_t10_vend_desc:
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/*
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* T10 Vendor Identifier Page, see spc4r17 section 7.7.3.4
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*/
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id_len = 8; /* For Vendor field */
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prod_len = 4; /* For VPD Header */
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prod_len += 8; /* For Vendor field */
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prod_len += strlen(prod);
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prod_len++; /* For : */
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2012-10-08 08:03:19 +04:00
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if (dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL) {
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unit_serial_len = strlen(&dev->t10_wwn.unit_serial[0]);
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2012-05-20 19:59:15 +04:00
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unit_serial_len++; /* For NULL Terminator */
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id_len += sprintf(&buf[off+12], "%s:%s", prod,
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2012-10-08 08:03:19 +04:00
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&dev->t10_wwn.unit_serial[0]);
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2012-05-20 19:59:15 +04:00
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}
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buf[off] = 0x2; /* ASCII */
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buf[off+1] = 0x1; /* T10 Vendor ID */
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buf[off+2] = 0x0;
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memcpy(&buf[off+4], "LIO-ORG", 8);
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/* Extra Byte for NULL Terminator */
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id_len++;
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/* Identifier Length */
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buf[off+3] = id_len;
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/* Header size for Designation descriptor */
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len += (id_len + 4);
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off += (id_len + 4);
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/*
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* struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD
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*/
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port = lun->lun_sep;
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if (port) {
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struct t10_alua_lu_gp *lu_gp;
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u32 padding, scsi_name_len;
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u16 lu_gp_id = 0;
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u16 tg_pt_gp_id = 0;
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u16 tpgt;
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tpg = port->sep_tpg;
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/*
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* Relative target port identifer, see spc4r17
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* section 7.7.3.7
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*
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* Get the PROTOCOL IDENTIFIER as defined by spc4r17
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* section 7.5.1 Table 362
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*/
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buf[off] =
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(tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
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buf[off++] |= 0x1; /* CODE SET == Binary */
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buf[off] = 0x80; /* Set PIV=1 */
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/* Set ASSOCIATION == target port: 01b */
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buf[off] |= 0x10;
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/* DESIGNATOR TYPE == Relative target port identifer */
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buf[off++] |= 0x4;
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off++; /* Skip over Reserved */
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buf[off++] = 4; /* DESIGNATOR LENGTH */
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/* Skip over Obsolete field in RTPI payload
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* in Table 472 */
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off += 2;
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buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
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buf[off++] = (port->sep_rtpi & 0xff);
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len += 8; /* Header size + Designation descriptor */
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/*
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* Target port group identifier, see spc4r17
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* section 7.7.3.8
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*
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* Get the PROTOCOL IDENTIFIER as defined by spc4r17
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* section 7.5.1 Table 362
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*/
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tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
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if (!tg_pt_gp_mem)
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goto check_lu_gp;
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spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
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tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
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if (!tg_pt_gp) {
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spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
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goto check_lu_gp;
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}
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tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id;
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spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
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buf[off] =
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(tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
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buf[off++] |= 0x1; /* CODE SET == Binary */
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buf[off] = 0x80; /* Set PIV=1 */
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/* Set ASSOCIATION == target port: 01b */
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buf[off] |= 0x10;
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/* DESIGNATOR TYPE == Target port group identifier */
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buf[off++] |= 0x5;
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|
|
off++; /* Skip over Reserved */
|
|
|
|
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
|
|
|
off += 2; /* Skip over Reserved Field */
|
|
|
|
buf[off++] = ((tg_pt_gp_id >> 8) & 0xff);
|
|
|
|
buf[off++] = (tg_pt_gp_id & 0xff);
|
|
|
|
len += 8; /* Header size + Designation descriptor */
|
|
|
|
/*
|
|
|
|
* Logical Unit Group identifier, see spc4r17
|
|
|
|
* section 7.7.3.8
|
|
|
|
*/
|
|
|
|
check_lu_gp:
|
|
|
|
lu_gp_mem = dev->dev_alua_lu_gp_mem;
|
|
|
|
if (!lu_gp_mem)
|
|
|
|
goto check_scsi_name;
|
|
|
|
|
|
|
|
spin_lock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
lu_gp = lu_gp_mem->lu_gp;
|
|
|
|
if (!lu_gp) {
|
|
|
|
spin_unlock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
goto check_scsi_name;
|
|
|
|
}
|
|
|
|
lu_gp_id = lu_gp->lu_gp_id;
|
|
|
|
spin_unlock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
|
|
|
|
buf[off++] |= 0x1; /* CODE SET == Binary */
|
|
|
|
/* DESIGNATOR TYPE == Logical Unit Group identifier */
|
|
|
|
buf[off++] |= 0x6;
|
|
|
|
off++; /* Skip over Reserved */
|
|
|
|
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
|
|
|
off += 2; /* Skip over Reserved Field */
|
|
|
|
buf[off++] = ((lu_gp_id >> 8) & 0xff);
|
|
|
|
buf[off++] = (lu_gp_id & 0xff);
|
|
|
|
len += 8; /* Header size + Designation descriptor */
|
|
|
|
/*
|
|
|
|
* SCSI name string designator, see spc4r17
|
|
|
|
* section 7.7.3.11
|
|
|
|
*
|
|
|
|
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
|
|
|
|
* section 7.5.1 Table 362
|
|
|
|
*/
|
|
|
|
check_scsi_name:
|
|
|
|
scsi_name_len = strlen(tpg->se_tpg_tfo->tpg_get_wwn(tpg));
|
|
|
|
/* UTF-8 ",t,0x<16-bit TPGT>" + NULL Terminator */
|
|
|
|
scsi_name_len += 10;
|
|
|
|
/* Check for 4-byte padding */
|
|
|
|
padding = ((-scsi_name_len) & 3);
|
|
|
|
if (padding != 0)
|
|
|
|
scsi_name_len += padding;
|
|
|
|
/* Header size + Designation descriptor */
|
|
|
|
scsi_name_len += 4;
|
|
|
|
|
|
|
|
buf[off] =
|
|
|
|
(tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
|
|
|
|
buf[off++] |= 0x3; /* CODE SET == UTF-8 */
|
|
|
|
buf[off] = 0x80; /* Set PIV=1 */
|
|
|
|
/* Set ASSOCIATION == target port: 01b */
|
|
|
|
buf[off] |= 0x10;
|
|
|
|
/* DESIGNATOR TYPE == SCSI name string */
|
|
|
|
buf[off++] |= 0x8;
|
|
|
|
off += 2; /* Skip over Reserved and length */
|
|
|
|
/*
|
|
|
|
* SCSI name string identifer containing, $FABRIC_MOD
|
|
|
|
* dependent information. For LIO-Target and iSCSI
|
|
|
|
* Target Port, this means "<iSCSI name>,t,0x<TPGT> in
|
|
|
|
* UTF-8 encoding.
|
|
|
|
*/
|
|
|
|
tpgt = tpg->se_tpg_tfo->tpg_get_tag(tpg);
|
|
|
|
scsi_name_len = sprintf(&buf[off], "%s,t,0x%04x",
|
|
|
|
tpg->se_tpg_tfo->tpg_get_wwn(tpg), tpgt);
|
|
|
|
scsi_name_len += 1 /* Include NULL terminator */;
|
|
|
|
/*
|
|
|
|
* The null-terminated, null-padded (see 4.4.2) SCSI
|
|
|
|
* NAME STRING field contains a UTF-8 format string.
|
|
|
|
* The number of bytes in the SCSI NAME STRING field
|
|
|
|
* (i.e., the value in the DESIGNATOR LENGTH field)
|
|
|
|
* shall be no larger than 256 and shall be a multiple
|
|
|
|
* of four.
|
|
|
|
*/
|
|
|
|
if (padding)
|
|
|
|
scsi_name_len += padding;
|
|
|
|
|
|
|
|
buf[off-1] = scsi_name_len;
|
|
|
|
off += scsi_name_len;
|
|
|
|
/* Header size + Designation descriptor */
|
|
|
|
len += (scsi_name_len + 4);
|
|
|
|
}
|
|
|
|
buf[2] = ((len >> 8) & 0xff);
|
|
|
|
buf[3] = (len & 0xff); /* Page Length for VPD 0x83 */
|
|
|
|
return 0;
|
|
|
|
}
|
2012-12-17 12:53:35 +04:00
|
|
|
EXPORT_SYMBOL(spc_emulate_evpd_83);
|
2012-05-20 19:59:15 +04:00
|
|
|
|
2013-01-30 10:10:06 +04:00
|
|
|
static bool
|
|
|
|
spc_check_dev_wce(struct se_device *dev)
|
|
|
|
{
|
|
|
|
bool wce = false;
|
|
|
|
|
|
|
|
if (dev->transport->get_write_cache)
|
|
|
|
wce = dev->transport->get_write_cache(dev);
|
|
|
|
else if (dev->dev_attrib.emulate_write_cache > 0)
|
|
|
|
wce = true;
|
|
|
|
|
|
|
|
return wce;
|
|
|
|
}
|
|
|
|
|
2012-05-20 19:59:15 +04:00
|
|
|
/* Extended INQUIRY Data VPD Page */
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
2013-01-30 10:10:06 +04:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
|
2012-05-20 19:59:15 +04:00
|
|
|
buf[3] = 0x3c;
|
|
|
|
/* Set HEADSUP, ORDSUP, SIMPSUP */
|
|
|
|
buf[5] = 0x07;
|
|
|
|
|
|
|
|
/* If WriteCache emulation is enabled, set V_SUP */
|
2013-01-30 10:10:06 +04:00
|
|
|
if (spc_check_dev_wce(dev))
|
2012-05-20 19:59:15 +04:00
|
|
|
buf[6] = 0x01;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Block Limits VPD page */
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
u32 max_sectors;
|
|
|
|
int have_tp = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Following spc3r22 section 6.5.3 Block Limits VPD page, when
|
|
|
|
* emulate_tpu=1 or emulate_tpws=1 we will be expect a
|
|
|
|
* different page length for Thin Provisioning.
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
if (dev->dev_attrib.emulate_tpu || dev->dev_attrib.emulate_tpws)
|
2012-05-20 19:59:15 +04:00
|
|
|
have_tp = 1;
|
|
|
|
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
buf[3] = have_tp ? 0x3c : 0x10;
|
|
|
|
|
|
|
|
/* Set WSNZ to 1 */
|
|
|
|
buf[4] = 0x01;
|
2013-08-21 01:24:09 +04:00
|
|
|
/*
|
|
|
|
* Set MAXIMUM COMPARE AND WRITE LENGTH
|
|
|
|
*/
|
|
|
|
if (dev->dev_attrib.emulate_caw)
|
|
|
|
buf[5] = 0x01;
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set OPTIMAL TRANSFER LENGTH GRANULARITY
|
|
|
|
*/
|
|
|
|
put_unaligned_be16(1, &buf[6]);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set MAXIMUM TRANSFER LENGTH
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
max_sectors = min(dev->dev_attrib.fabric_max_sectors,
|
|
|
|
dev->dev_attrib.hw_max_sectors);
|
2012-05-20 19:59:15 +04:00
|
|
|
put_unaligned_be32(max_sectors, &buf[8]);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set OPTIMAL TRANSFER LENGTH
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
put_unaligned_be32(dev->dev_attrib.optimal_sectors, &buf[12]);
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Exit now if we don't support TP.
|
|
|
|
*/
|
|
|
|
if (!have_tp)
|
2012-11-15 23:02:49 +04:00
|
|
|
goto max_write_same;
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set MAXIMUM UNMAP LBA COUNT
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
put_unaligned_be32(dev->dev_attrib.max_unmap_lba_count, &buf[20]);
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
put_unaligned_be32(dev->dev_attrib.max_unmap_block_desc_count,
|
2012-05-20 19:59:15 +04:00
|
|
|
&buf[24]);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set OPTIMAL UNMAP GRANULARITY
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
put_unaligned_be32(dev->dev_attrib.unmap_granularity, &buf[28]);
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* UNMAP GRANULARITY ALIGNMENT
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
put_unaligned_be32(dev->dev_attrib.unmap_granularity_alignment,
|
2012-05-20 19:59:15 +04:00
|
|
|
&buf[32]);
|
2012-10-08 08:03:19 +04:00
|
|
|
if (dev->dev_attrib.unmap_granularity_alignment != 0)
|
2012-05-20 19:59:15 +04:00
|
|
|
buf[32] |= 0x80; /* Set the UGAVALID bit */
|
|
|
|
|
2012-11-15 23:02:49 +04:00
|
|
|
/*
|
|
|
|
* MAXIMUM WRITE SAME LENGTH
|
|
|
|
*/
|
|
|
|
max_write_same:
|
|
|
|
put_unaligned_be64(dev->dev_attrib.max_write_same_len, &buf[36]);
|
|
|
|
|
2012-05-20 19:59:15 +04:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Block Device Characteristics VPD page */
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_evpd_b1(struct se_cmd *cmd, unsigned char *buf)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
buf[3] = 0x3c;
|
2012-10-08 08:03:19 +04:00
|
|
|
buf[5] = dev->dev_attrib.is_nonrot ? 1 : 0;
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Thin Provisioning VPD */
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* From spc3r22 section 6.5.4 Thin Provisioning VPD page:
|
|
|
|
*
|
|
|
|
* The PAGE LENGTH field is defined in SPC-4. If the DP bit is set to
|
|
|
|
* zero, then the page length shall be set to 0004h. If the DP bit
|
|
|
|
* is set to one, then the page length shall be set to the value
|
|
|
|
* defined in table 162.
|
|
|
|
*/
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set Hardcoded length mentioned above for DP=0
|
|
|
|
*/
|
|
|
|
put_unaligned_be16(0x0004, &buf[2]);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The THRESHOLD EXPONENT field indicates the threshold set size in
|
|
|
|
* LBAs as a power of 2 (i.e., the threshold set size is equal to
|
|
|
|
* 2(threshold exponent)).
|
|
|
|
*
|
|
|
|
* Note that this is currently set to 0x00 as mkp says it will be
|
|
|
|
* changing again. We can enable this once it has settled in T10
|
|
|
|
* and is actually used by Linux/SCSI ML code.
|
|
|
|
*/
|
|
|
|
buf[4] = 0x00;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* A TPU bit set to one indicates that the device server supports
|
|
|
|
* the UNMAP command (see 5.25). A TPU bit set to zero indicates
|
|
|
|
* that the device server does not support the UNMAP command.
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
if (dev->dev_attrib.emulate_tpu != 0)
|
2012-05-20 19:59:15 +04:00
|
|
|
buf[5] = 0x80;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* A TPWS bit set to one indicates that the device server supports
|
|
|
|
* the use of the WRITE SAME (16) command (see 5.42) to unmap LBAs.
|
|
|
|
* A TPWS bit set to zero indicates that the device server does not
|
|
|
|
* support the use of the WRITE SAME (16) command to unmap LBAs.
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
if (dev->dev_attrib.emulate_tpws != 0)
|
2012-05-20 19:59:15 +04:00
|
|
|
buf[5] |= 0x40;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf);
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
static struct {
|
|
|
|
uint8_t page;
|
2012-11-07 00:24:09 +04:00
|
|
|
sense_reason_t (*emulate)(struct se_cmd *, unsigned char *);
|
2012-05-20 19:59:15 +04:00
|
|
|
} evpd_handlers[] = {
|
|
|
|
{ .page = 0x00, .emulate = spc_emulate_evpd_00 },
|
|
|
|
{ .page = 0x80, .emulate = spc_emulate_evpd_80 },
|
|
|
|
{ .page = 0x83, .emulate = spc_emulate_evpd_83 },
|
|
|
|
{ .page = 0x86, .emulate = spc_emulate_evpd_86 },
|
|
|
|
{ .page = 0xb0, .emulate = spc_emulate_evpd_b0 },
|
|
|
|
{ .page = 0xb1, .emulate = spc_emulate_evpd_b1 },
|
|
|
|
{ .page = 0xb2, .emulate = spc_emulate_evpd_b2 },
|
|
|
|
};
|
|
|
|
|
|
|
|
/* supported vital product data pages */
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
int p;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Only report the INQUIRY EVPD=1 pages after a valid NAA
|
|
|
|
* Registered Extended LUN WWN has been set via ConfigFS
|
|
|
|
* during device creation/restart.
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
if (cmd->se_dev->dev_flags & DF_EMULATED_VPD_UNIT_SERIAL) {
|
2012-05-20 19:59:15 +04:00
|
|
|
buf[3] = ARRAY_SIZE(evpd_handlers);
|
|
|
|
for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p)
|
|
|
|
buf[p + 4] = evpd_handlers[p].page;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_inquiry(struct se_cmd *cmd)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
struct se_portal_group *tpg = cmd->se_lun->lun_sep->sep_tpg;
|
2012-09-07 19:30:38 +04:00
|
|
|
unsigned char *rbuf;
|
2012-05-20 19:59:15 +04:00
|
|
|
unsigned char *cdb = cmd->t_task_cdb;
|
2012-09-07 19:30:38 +04:00
|
|
|
unsigned char buf[SE_INQUIRY_BUF];
|
2012-11-07 00:24:09 +04:00
|
|
|
sense_reason_t ret;
|
|
|
|
int p;
|
2012-05-20 19:59:15 +04:00
|
|
|
|
2012-11-01 09:04:26 +04:00
|
|
|
memset(buf, 0, SE_INQUIRY_BUF);
|
|
|
|
|
2012-05-20 19:59:15 +04:00
|
|
|
if (dev == tpg->tpg_virt_lun0.lun_se_dev)
|
|
|
|
buf[0] = 0x3f; /* Not connected */
|
|
|
|
else
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
|
|
|
|
if (!(cdb[1] & 0x1)) {
|
|
|
|
if (cdb[2]) {
|
|
|
|
pr_err("INQUIRY with EVPD==0 but PAGE CODE=%02x\n",
|
|
|
|
cdb[2]);
|
2012-11-07 00:24:09 +04:00
|
|
|
ret = TCM_INVALID_CDB_FIELD;
|
2012-05-20 19:59:15 +04:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = spc_emulate_inquiry_std(cmd, buf);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p) {
|
|
|
|
if (cdb[2] == evpd_handlers[p].page) {
|
|
|
|
buf[1] = cdb[2];
|
|
|
|
ret = evpd_handlers[p].emulate(cmd, buf);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]);
|
2012-11-07 00:24:09 +04:00
|
|
|
ret = TCM_INVALID_CDB_FIELD;
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
out:
|
2012-09-07 19:30:38 +04:00
|
|
|
rbuf = transport_kmap_data_sg(cmd);
|
2013-01-30 01:33:05 +04:00
|
|
|
if (rbuf) {
|
|
|
|
memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length));
|
|
|
|
transport_kunmap_data_sg(cmd);
|
|
|
|
}
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
if (!ret)
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
static int spc_modesense_rwrecovery(struct se_device *dev, u8 pc, u8 *p)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
p[0] = 0x01;
|
|
|
|
p[1] = 0x0a;
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
/* No changeable values for now */
|
|
|
|
if (pc == 1)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
out:
|
2012-05-20 19:59:15 +04:00
|
|
|
return 12;
|
|
|
|
}
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
static int spc_modesense_control(struct se_device *dev, u8 pc, u8 *p)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
p[0] = 0x0a;
|
|
|
|
p[1] = 0x0a;
|
2012-10-31 20:16:48 +04:00
|
|
|
|
|
|
|
/* No changeable values for now */
|
|
|
|
if (pc == 1)
|
|
|
|
goto out;
|
|
|
|
|
2012-05-20 19:59:15 +04:00
|
|
|
p[2] = 2;
|
|
|
|
/*
|
|
|
|
* From spc4r23, 7.4.7 Control mode page
|
|
|
|
*
|
|
|
|
* The QUEUE ALGORITHM MODIFIER field (see table 368) specifies
|
|
|
|
* restrictions on the algorithm used for reordering commands
|
|
|
|
* having the SIMPLE task attribute (see SAM-4).
|
|
|
|
*
|
|
|
|
* Table 368 -- QUEUE ALGORITHM MODIFIER field
|
|
|
|
* Code Description
|
|
|
|
* 0h Restricted reordering
|
|
|
|
* 1h Unrestricted reordering allowed
|
|
|
|
* 2h to 7h Reserved
|
|
|
|
* 8h to Fh Vendor specific
|
|
|
|
*
|
|
|
|
* A value of zero in the QUEUE ALGORITHM MODIFIER field specifies that
|
|
|
|
* the device server shall order the processing sequence of commands
|
|
|
|
* having the SIMPLE task attribute such that data integrity is maintained
|
|
|
|
* for that I_T nexus (i.e., if the transmission of new SCSI transport protocol
|
|
|
|
* requests is halted at any time, the final value of all data observable
|
|
|
|
* on the medium shall be the same as if all the commands had been processed
|
|
|
|
* with the ORDERED task attribute).
|
|
|
|
*
|
|
|
|
* A value of one in the QUEUE ALGORITHM MODIFIER field specifies that the
|
|
|
|
* device server may reorder the processing sequence of commands having the
|
|
|
|
* SIMPLE task attribute in any manner. Any data integrity exposures related to
|
|
|
|
* command sequence order shall be explicitly handled by the application client
|
|
|
|
* through the selection of appropriate ommands and task attributes.
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
p[3] = (dev->dev_attrib.emulate_rest_reord == 1) ? 0x00 : 0x10;
|
2012-05-20 19:59:15 +04:00
|
|
|
/*
|
|
|
|
* From spc4r17, section 7.4.6 Control mode Page
|
|
|
|
*
|
|
|
|
* Unit Attention interlocks control (UN_INTLCK_CTRL) to code 00b
|
|
|
|
*
|
|
|
|
* 00b: The logical unit shall clear any unit attention condition
|
|
|
|
* reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION
|
|
|
|
* status and shall not establish a unit attention condition when a com-
|
|
|
|
* mand is completed with BUSY, TASK SET FULL, or RESERVATION CONFLICT
|
|
|
|
* status.
|
|
|
|
*
|
|
|
|
* 10b: The logical unit shall not clear any unit attention condition
|
|
|
|
* reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION
|
|
|
|
* status and shall not establish a unit attention condition when
|
|
|
|
* a command is completed with BUSY, TASK SET FULL, or RESERVATION
|
|
|
|
* CONFLICT status.
|
|
|
|
*
|
|
|
|
* 11b a The logical unit shall not clear any unit attention condition
|
|
|
|
* reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION
|
|
|
|
* status and shall establish a unit attention condition for the
|
|
|
|
* initiator port associated with the I_T nexus on which the BUSY,
|
|
|
|
* TASK SET FULL, or RESERVATION CONFLICT status is being returned.
|
|
|
|
* Depending on the status, the additional sense code shall be set to
|
|
|
|
* PREVIOUS BUSY STATUS, PREVIOUS TASK SET FULL STATUS, or PREVIOUS
|
|
|
|
* RESERVATION CONFLICT STATUS. Until it is cleared by a REQUEST SENSE
|
|
|
|
* command, a unit attention condition shall be established only once
|
|
|
|
* for a BUSY, TASK SET FULL, or RESERVATION CONFLICT status regardless
|
|
|
|
* to the number of commands completed with one of those status codes.
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
p[4] = (dev->dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 :
|
|
|
|
(dev->dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00;
|
2012-05-20 19:59:15 +04:00
|
|
|
/*
|
|
|
|
* From spc4r17, section 7.4.6 Control mode Page
|
|
|
|
*
|
|
|
|
* Task Aborted Status (TAS) bit set to zero.
|
|
|
|
*
|
|
|
|
* A task aborted status (TAS) bit set to zero specifies that aborted
|
|
|
|
* tasks shall be terminated by the device server without any response
|
|
|
|
* to the application client. A TAS bit set to one specifies that tasks
|
|
|
|
* aborted by the actions of an I_T nexus other than the I_T nexus on
|
|
|
|
* which the command was received shall be completed with TASK ABORTED
|
|
|
|
* status (see SAM-4).
|
|
|
|
*/
|
2012-10-08 08:03:19 +04:00
|
|
|
p[5] = (dev->dev_attrib.emulate_tas) ? 0x40 : 0x00;
|
2012-05-20 19:59:15 +04:00
|
|
|
p[8] = 0xff;
|
|
|
|
p[9] = 0xff;
|
|
|
|
p[11] = 30;
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
out:
|
2012-05-20 19:59:15 +04:00
|
|
|
return 12;
|
|
|
|
}
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
static int spc_modesense_caching(struct se_device *dev, u8 pc, u8 *p)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
p[0] = 0x08;
|
|
|
|
p[1] = 0x12;
|
2012-10-31 20:16:48 +04:00
|
|
|
|
|
|
|
/* No changeable values for now */
|
|
|
|
if (pc == 1)
|
|
|
|
goto out;
|
|
|
|
|
2013-01-30 10:10:06 +04:00
|
|
|
if (spc_check_dev_wce(dev))
|
2012-05-20 19:59:15 +04:00
|
|
|
p[2] = 0x04; /* Write Cache Enable */
|
|
|
|
p[12] = 0x20; /* Disabled Read Ahead */
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
out:
|
2012-05-20 19:59:15 +04:00
|
|
|
return 20;
|
|
|
|
}
|
|
|
|
|
2012-10-31 20:16:49 +04:00
|
|
|
static int spc_modesense_informational_exceptions(struct se_device *dev, u8 pc, unsigned char *p)
|
|
|
|
{
|
|
|
|
p[0] = 0x1c;
|
|
|
|
p[1] = 0x0a;
|
|
|
|
|
|
|
|
/* No changeable values for now */
|
|
|
|
if (pc == 1)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
out:
|
|
|
|
return 12;
|
|
|
|
}
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
static struct {
|
|
|
|
uint8_t page;
|
|
|
|
uint8_t subpage;
|
|
|
|
int (*emulate)(struct se_device *, u8, unsigned char *);
|
|
|
|
} modesense_handlers[] = {
|
|
|
|
{ .page = 0x01, .subpage = 0x00, .emulate = spc_modesense_rwrecovery },
|
|
|
|
{ .page = 0x08, .subpage = 0x00, .emulate = spc_modesense_caching },
|
|
|
|
{ .page = 0x0a, .subpage = 0x00, .emulate = spc_modesense_control },
|
2012-10-31 20:16:49 +04:00
|
|
|
{ .page = 0x1c, .subpage = 0x00, .emulate = spc_modesense_informational_exceptions },
|
2012-10-31 20:16:48 +04:00
|
|
|
};
|
|
|
|
|
2012-05-20 19:59:15 +04:00
|
|
|
static void spc_modesense_write_protect(unsigned char *buf, int type)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* I believe that the WP bit (bit 7) in the mode header is the same for
|
|
|
|
* all device types..
|
|
|
|
*/
|
|
|
|
switch (type) {
|
|
|
|
case TYPE_DISK:
|
|
|
|
case TYPE_TAPE:
|
|
|
|
default:
|
|
|
|
buf[0] |= 0x80; /* WP bit */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void spc_modesense_dpofua(unsigned char *buf, int type)
|
|
|
|
{
|
|
|
|
switch (type) {
|
|
|
|
case TYPE_DISK:
|
|
|
|
buf[0] |= 0x10; /* DPOFUA bit */
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
static int spc_modesense_blockdesc(unsigned char *buf, u64 blocks, u32 block_size)
|
|
|
|
{
|
|
|
|
*buf++ = 8;
|
|
|
|
put_unaligned_be32(min(blocks, 0xffffffffull), buf);
|
|
|
|
buf += 4;
|
|
|
|
put_unaligned_be32(block_size, buf);
|
|
|
|
return 9;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int spc_modesense_long_blockdesc(unsigned char *buf, u64 blocks, u32 block_size)
|
|
|
|
{
|
|
|
|
if (blocks <= 0xffffffff)
|
|
|
|
return spc_modesense_blockdesc(buf + 3, blocks, block_size) + 3;
|
|
|
|
|
|
|
|
*buf++ = 1; /* LONGLBA */
|
|
|
|
buf += 2;
|
|
|
|
*buf++ = 16;
|
|
|
|
put_unaligned_be64(blocks, buf);
|
|
|
|
buf += 12;
|
|
|
|
put_unaligned_be32(block_size, buf);
|
|
|
|
|
|
|
|
return 17;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
char *cdb = cmd->t_task_cdb;
|
2013-01-30 02:10:01 +04:00
|
|
|
unsigned char buf[SE_MODE_PAGE_BUF], *rbuf;
|
2012-05-20 19:59:15 +04:00
|
|
|
int type = dev->transport->get_device_type(dev);
|
|
|
|
int ten = (cmd->t_task_cdb[0] == MODE_SENSE_10);
|
2012-10-31 20:16:48 +04:00
|
|
|
bool dbd = !!(cdb[1] & 0x08);
|
|
|
|
bool llba = ten ? !!(cdb[1] & 0x10) : false;
|
|
|
|
u8 pc = cdb[2] >> 6;
|
|
|
|
u8 page = cdb[2] & 0x3f;
|
|
|
|
u8 subpage = cdb[3];
|
2012-05-20 19:59:15 +04:00
|
|
|
int length = 0;
|
2012-10-31 20:16:48 +04:00
|
|
|
int ret;
|
|
|
|
int i;
|
2012-05-20 19:59:15 +04:00
|
|
|
|
2013-01-30 02:10:01 +04:00
|
|
|
memset(buf, 0, SE_MODE_PAGE_BUF);
|
|
|
|
|
2012-11-02 05:43:03 +04:00
|
|
|
/*
|
|
|
|
* Skip over MODE DATA LENGTH + MEDIUM TYPE fields to byte 3 for
|
|
|
|
* MODE_SENSE_10 and byte 2 for MODE_SENSE (6).
|
|
|
|
*/
|
|
|
|
length = ten ? 3 : 2;
|
2012-10-31 20:16:48 +04:00
|
|
|
|
|
|
|
/* DEVICE-SPECIFIC PARAMETER */
|
|
|
|
if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) ||
|
|
|
|
(cmd->se_deve &&
|
|
|
|
(cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
|
|
|
|
spc_modesense_write_protect(&buf[length], type);
|
|
|
|
|
2013-01-30 10:10:06 +04:00
|
|
|
if ((spc_check_dev_wce(dev)) &&
|
2012-10-31 20:16:48 +04:00
|
|
|
(dev->dev_attrib.emulate_fua_write > 0))
|
|
|
|
spc_modesense_dpofua(&buf[length], type);
|
|
|
|
|
|
|
|
++length;
|
|
|
|
|
|
|
|
/* BLOCK DESCRIPTOR */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* For now we only include a block descriptor for disk (SBC)
|
|
|
|
* devices; other command sets use a slightly different format.
|
|
|
|
*/
|
|
|
|
if (!dbd && type == TYPE_DISK) {
|
|
|
|
u64 blocks = dev->transport->get_blocks(dev);
|
|
|
|
u32 block_size = dev->dev_attrib.block_size;
|
|
|
|
|
|
|
|
if (ten) {
|
|
|
|
if (llba) {
|
|
|
|
length += spc_modesense_long_blockdesc(&buf[length],
|
|
|
|
blocks, block_size);
|
|
|
|
} else {
|
|
|
|
length += 3;
|
|
|
|
length += spc_modesense_blockdesc(&buf[length],
|
|
|
|
blocks, block_size);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
length += spc_modesense_blockdesc(&buf[length], blocks,
|
|
|
|
block_size);
|
|
|
|
}
|
2012-05-20 19:59:15 +04:00
|
|
|
} else {
|
2012-10-31 20:16:48 +04:00
|
|
|
if (ten)
|
|
|
|
length += 4;
|
|
|
|
else
|
|
|
|
length += 1;
|
2012-05-20 19:59:15 +04:00
|
|
|
}
|
|
|
|
|
2012-10-31 20:16:48 +04:00
|
|
|
if (page == 0x3f) {
|
|
|
|
if (subpage != 0x00 && subpage != 0xff) {
|
2012-11-07 00:24:09 +04:00
|
|
|
pr_warn("MODE_SENSE: Invalid subpage code: 0x%02x\n", subpage);
|
|
|
|
return TCM_INVALID_CDB_FIELD;
|
2012-10-31 20:16:48 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(modesense_handlers); ++i) {
|
|
|
|
/*
|
|
|
|
* Tricky way to say all subpage 00h for
|
|
|
|
* subpage==0, all subpages for subpage==0xff
|
|
|
|
* (and we just checked above that those are
|
|
|
|
* the only two possibilities).
|
|
|
|
*/
|
|
|
|
if ((modesense_handlers[i].subpage & ~subpage) == 0) {
|
|
|
|
ret = modesense_handlers[i].emulate(dev, pc, &buf[length]);
|
|
|
|
if (!ten && length + ret >= 255)
|
|
|
|
break;
|
|
|
|
length += ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
goto set_length;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(modesense_handlers); ++i)
|
|
|
|
if (modesense_handlers[i].page == page &&
|
|
|
|
modesense_handlers[i].subpage == subpage) {
|
|
|
|
length += modesense_handlers[i].emulate(dev, pc, &buf[length]);
|
|
|
|
goto set_length;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We don't intend to implement:
|
|
|
|
* - obsolete page 03h "format parameters" (checked by Solaris)
|
|
|
|
*/
|
|
|
|
if (page != 0x03)
|
|
|
|
pr_err("MODE SENSE: unimplemented page/subpage: 0x%02x/0x%02x\n",
|
|
|
|
page, subpage);
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
return TCM_UNKNOWN_MODE_PAGE;
|
2012-10-31 20:16:48 +04:00
|
|
|
|
|
|
|
set_length:
|
|
|
|
if (ten)
|
|
|
|
put_unaligned_be16(length - 2, buf);
|
|
|
|
else
|
|
|
|
buf[0] = length - 1;
|
|
|
|
|
2013-01-30 02:10:01 +04:00
|
|
|
rbuf = transport_kmap_data_sg(cmd);
|
|
|
|
if (rbuf) {
|
|
|
|
memcpy(rbuf, buf, min_t(u32, SE_MODE_PAGE_BUF, cmd->data_length));
|
|
|
|
transport_kunmap_data_sg(cmd);
|
2012-09-07 19:30:39 +04:00
|
|
|
}
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t spc_emulate_modeselect(struct se_cmd *cmd)
|
2012-10-31 20:16:50 +04:00
|
|
|
{
|
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
char *cdb = cmd->t_task_cdb;
|
|
|
|
bool ten = cdb[0] == MODE_SELECT_10;
|
|
|
|
int off = ten ? 8 : 4;
|
|
|
|
bool pf = !!(cdb[1] & 0x10);
|
|
|
|
u8 page, subpage;
|
|
|
|
unsigned char *buf;
|
|
|
|
unsigned char tbuf[SE_MODE_PAGE_BUF];
|
|
|
|
int length;
|
|
|
|
int ret = 0;
|
|
|
|
int i;
|
|
|
|
|
2013-02-09 03:18:40 +04:00
|
|
|
if (!cmd->data_length) {
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cmd->data_length < off + 2)
|
|
|
|
return TCM_PARAMETER_LIST_LENGTH_ERROR;
|
|
|
|
|
2012-10-31 20:16:50 +04:00
|
|
|
buf = transport_kmap_data_sg(cmd);
|
2012-11-07 00:24:09 +04:00
|
|
|
if (!buf)
|
|
|
|
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
|
2012-10-31 20:16:50 +04:00
|
|
|
|
|
|
|
if (!pf) {
|
2012-11-07 00:24:09 +04:00
|
|
|
ret = TCM_INVALID_CDB_FIELD;
|
2012-10-31 20:16:50 +04:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
page = buf[off] & 0x3f;
|
|
|
|
subpage = buf[off] & 0x40 ? buf[off + 1] : 0;
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(modesense_handlers); ++i)
|
|
|
|
if (modesense_handlers[i].page == page &&
|
|
|
|
modesense_handlers[i].subpage == subpage) {
|
|
|
|
memset(tbuf, 0, SE_MODE_PAGE_BUF);
|
|
|
|
length = modesense_handlers[i].emulate(dev, 0, tbuf);
|
|
|
|
goto check_contents;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
ret = TCM_UNKNOWN_MODE_PAGE;
|
2012-10-31 20:16:50 +04:00
|
|
|
goto out;
|
|
|
|
|
|
|
|
check_contents:
|
2013-02-09 03:18:40 +04:00
|
|
|
if (cmd->data_length < off + length) {
|
|
|
|
ret = TCM_PARAMETER_LIST_LENGTH_ERROR;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
if (memcmp(buf + off, tbuf, length))
|
|
|
|
ret = TCM_INVALID_PARAMETER_LIST;
|
2012-10-31 20:16:50 +04:00
|
|
|
|
|
|
|
out:
|
|
|
|
transport_kunmap_data_sg(cmd);
|
|
|
|
|
|
|
|
if (!ret)
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t spc_emulate_request_sense(struct se_cmd *cmd)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
unsigned char *cdb = cmd->t_task_cdb;
|
2012-09-07 19:30:36 +04:00
|
|
|
unsigned char *rbuf;
|
2012-05-20 19:59:15 +04:00
|
|
|
u8 ua_asc = 0, ua_ascq = 0;
|
2012-09-07 19:30:36 +04:00
|
|
|
unsigned char buf[SE_SENSE_BUF];
|
|
|
|
|
|
|
|
memset(buf, 0, SE_SENSE_BUF);
|
2012-05-20 19:59:15 +04:00
|
|
|
|
|
|
|
if (cdb[1] & 0x01) {
|
|
|
|
pr_err("REQUEST_SENSE description emulation not"
|
|
|
|
" supported\n");
|
2012-11-07 00:24:09 +04:00
|
|
|
return TCM_INVALID_CDB_FIELD;
|
2012-05-20 19:59:15 +04:00
|
|
|
}
|
|
|
|
|
2012-09-07 19:30:36 +04:00
|
|
|
rbuf = transport_kmap_data_sg(cmd);
|
2012-11-07 00:24:09 +04:00
|
|
|
if (!rbuf)
|
|
|
|
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
|
|
|
|
|
|
|
|
if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) {
|
2012-05-20 19:59:15 +04:00
|
|
|
/*
|
|
|
|
* CURRENT ERROR, UNIT ATTENTION
|
|
|
|
*/
|
|
|
|
buf[0] = 0x70;
|
|
|
|
buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The Additional Sense Code (ASC) from the UNIT ATTENTION
|
|
|
|
*/
|
|
|
|
buf[SPC_ASC_KEY_OFFSET] = ua_asc;
|
|
|
|
buf[SPC_ASCQ_KEY_OFFSET] = ua_ascq;
|
|
|
|
buf[7] = 0x0A;
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* CURRENT ERROR, NO SENSE
|
|
|
|
*/
|
|
|
|
buf[0] = 0x70;
|
|
|
|
buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* NO ADDITIONAL SENSE INFORMATION
|
|
|
|
*/
|
|
|
|
buf[SPC_ASC_KEY_OFFSET] = 0x00;
|
|
|
|
buf[7] = 0x0A;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length));
|
|
|
|
transport_kunmap_data_sg(cmd);
|
2012-09-07 19:30:36 +04:00
|
|
|
|
2012-05-20 19:59:15 +04:00
|
|
|
target_complete_cmd(cmd, GOOD);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd)
|
2012-10-07 18:55:51 +04:00
|
|
|
{
|
|
|
|
struct se_dev_entry *deve;
|
|
|
|
struct se_session *sess = cmd->se_sess;
|
|
|
|
unsigned char *buf;
|
|
|
|
u32 lun_count = 0, offset = 8, i;
|
|
|
|
|
|
|
|
if (cmd->data_length < 16) {
|
|
|
|
pr_warn("REPORT LUNS allocation length %u too small\n",
|
|
|
|
cmd->data_length);
|
2012-11-07 00:24:09 +04:00
|
|
|
return TCM_INVALID_CDB_FIELD;
|
2012-10-07 18:55:51 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
buf = transport_kmap_data_sg(cmd);
|
|
|
|
if (!buf)
|
2012-11-07 00:24:09 +04:00
|
|
|
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
|
2012-10-07 18:55:51 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If no struct se_session pointer is present, this struct se_cmd is
|
|
|
|
* coming via a target_core_mod PASSTHROUGH op, and not through
|
|
|
|
* a $FABRIC_MOD. In that case, report LUN=0 only.
|
|
|
|
*/
|
|
|
|
if (!sess) {
|
|
|
|
int_to_scsilun(0, (struct scsi_lun *)&buf[offset]);
|
|
|
|
lun_count = 1;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_irq(&sess->se_node_acl->device_list_lock);
|
|
|
|
for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
|
|
|
|
deve = sess->se_node_acl->device_list[i];
|
|
|
|
if (!(deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS))
|
|
|
|
continue;
|
|
|
|
/*
|
|
|
|
* We determine the correct LUN LIST LENGTH even once we
|
|
|
|
* have reached the initial allocation length.
|
|
|
|
* See SPC2-R20 7.19.
|
|
|
|
*/
|
|
|
|
lun_count++;
|
|
|
|
if ((offset + 8) > cmd->data_length)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]);
|
|
|
|
offset += 8;
|
|
|
|
}
|
|
|
|
spin_unlock_irq(&sess->se_node_acl->device_list_lock);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* See SPC3 r07, page 159.
|
|
|
|
*/
|
|
|
|
done:
|
|
|
|
lun_count *= 8;
|
|
|
|
buf[0] = ((lun_count >> 24) & 0xff);
|
|
|
|
buf[1] = ((lun_count >> 16) & 0xff);
|
|
|
|
buf[2] = ((lun_count >> 8) & 0xff);
|
|
|
|
buf[3] = (lun_count & 0xff);
|
|
|
|
transport_kunmap_data_sg(cmd);
|
|
|
|
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
|
|
|
return 0;
|
|
|
|
}
|
2012-10-07 18:55:52 +04:00
|
|
|
EXPORT_SYMBOL(spc_emulate_report_luns);
|
2012-10-07 18:55:51 +04:00
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
static sense_reason_t
|
|
|
|
spc_emulate_testunitready(struct se_cmd *cmd)
|
2012-05-20 19:59:15 +04:00
|
|
|
{
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-11-07 00:24:09 +04:00
|
|
|
sense_reason_t
|
|
|
|
spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
|
2012-05-20 19:59:13 +04:00
|
|
|
{
|
2012-05-31 01:09:10 +04:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2012-05-20 19:59:13 +04:00
|
|
|
unsigned char *cdb = cmd->t_task_cdb;
|
|
|
|
|
|
|
|
switch (cdb[0]) {
|
|
|
|
case MODE_SELECT:
|
|
|
|
*size = cdb[4];
|
2012-10-31 20:16:50 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_modeselect;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case MODE_SELECT_10:
|
|
|
|
*size = (cdb[7] << 8) + cdb[8];
|
2012-10-31 20:16:50 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_modeselect;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case MODE_SENSE:
|
|
|
|
*size = cdb[4];
|
2012-05-20 19:59:15 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_modesense;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case MODE_SENSE_10:
|
|
|
|
*size = (cdb[7] << 8) + cdb[8];
|
2012-05-20 19:59:15 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_modesense;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case LOG_SELECT:
|
|
|
|
case LOG_SENSE:
|
|
|
|
*size = (cdb[7] << 8) + cdb[8];
|
|
|
|
break;
|
|
|
|
case PERSISTENT_RESERVE_IN:
|
|
|
|
*size = (cdb[7] << 8) + cdb[8];
|
2012-10-11 01:37:15 +04:00
|
|
|
cmd->execute_cmd = target_scsi3_emulate_pr_in;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case PERSISTENT_RESERVE_OUT:
|
|
|
|
*size = (cdb[7] << 8) + cdb[8];
|
2012-10-11 01:37:15 +04:00
|
|
|
cmd->execute_cmd = target_scsi3_emulate_pr_out;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case RELEASE:
|
|
|
|
case RELEASE_10:
|
|
|
|
if (cdb[0] == RELEASE_10)
|
|
|
|
*size = (cdb[7] << 8) | cdb[8];
|
|
|
|
else
|
|
|
|
*size = cmd->data_length;
|
|
|
|
|
2012-10-11 01:37:15 +04:00
|
|
|
cmd->execute_cmd = target_scsi2_reservation_release;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case RESERVE:
|
|
|
|
case RESERVE_10:
|
|
|
|
/*
|
|
|
|
* The SPC-2 RESERVE does not contain a size in the SCSI CDB.
|
|
|
|
* Assume the passthrough or $FABRIC_MOD will tell us about it.
|
|
|
|
*/
|
|
|
|
if (cdb[0] == RESERVE_10)
|
|
|
|
*size = (cdb[7] << 8) | cdb[8];
|
|
|
|
else
|
|
|
|
*size = cmd->data_length;
|
|
|
|
|
2012-10-11 01:37:15 +04:00
|
|
|
cmd->execute_cmd = target_scsi2_reservation_reserve;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case REQUEST_SENSE:
|
|
|
|
*size = cdb[4];
|
2012-05-20 19:59:15 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_request_sense;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case INQUIRY:
|
|
|
|
*size = (cdb[3] << 8) + cdb[4];
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do implict HEAD_OF_QUEUE processing for INQUIRY.
|
|
|
|
* See spc4r17 section 5.3
|
|
|
|
*/
|
2012-10-11 01:37:14 +04:00
|
|
|
cmd->sam_task_attr = MSG_HEAD_TAG;
|
2012-05-20 19:59:15 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_inquiry;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case SECURITY_PROTOCOL_IN:
|
|
|
|
case SECURITY_PROTOCOL_OUT:
|
|
|
|
*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
|
|
|
|
break;
|
|
|
|
case EXTENDED_COPY:
|
2013-08-22 23:29:59 +04:00
|
|
|
*size = get_unaligned_be32(&cdb[10]);
|
|
|
|
cmd->execute_cmd = target_do_xcopy;
|
|
|
|
break;
|
2012-05-20 19:59:13 +04:00
|
|
|
case RECEIVE_COPY_RESULTS:
|
2013-08-22 23:29:59 +04:00
|
|
|
*size = get_unaligned_be32(&cdb[10]);
|
|
|
|
cmd->execute_cmd = target_do_receive_copy_results;
|
|
|
|
break;
|
|
|
|
case READ_ATTRIBUTE:
|
2012-05-20 19:59:13 +04:00
|
|
|
case WRITE_ATTRIBUTE:
|
|
|
|
*size = (cdb[10] << 24) | (cdb[11] << 16) |
|
|
|
|
(cdb[12] << 8) | cdb[13];
|
|
|
|
break;
|
|
|
|
case RECEIVE_DIAGNOSTIC:
|
|
|
|
case SEND_DIAGNOSTIC:
|
|
|
|
*size = (cdb[3] << 8) | cdb[4];
|
|
|
|
break;
|
|
|
|
case WRITE_BUFFER:
|
|
|
|
*size = (cdb[6] << 16) + (cdb[7] << 8) + cdb[8];
|
|
|
|
break;
|
|
|
|
case REPORT_LUNS:
|
2012-10-07 18:55:51 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_report_luns;
|
2012-05-20 19:59:13 +04:00
|
|
|
*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
|
|
|
|
/*
|
|
|
|
* Do implict HEAD_OF_QUEUE processing for REPORT_LUNS
|
|
|
|
* See spc4r17 section 5.3
|
|
|
|
*/
|
2012-10-11 01:37:14 +04:00
|
|
|
cmd->sam_task_attr = MSG_HEAD_TAG;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
|
|
|
case TEST_UNIT_READY:
|
2012-05-20 19:59:15 +04:00
|
|
|
cmd->execute_cmd = spc_emulate_testunitready;
|
2012-05-20 19:59:14 +04:00
|
|
|
*size = 0;
|
2012-05-20 19:59:13 +04:00
|
|
|
break;
|
2012-05-31 01:09:10 +04:00
|
|
|
case MAINTENANCE_IN:
|
|
|
|
if (dev->transport->get_device_type(dev) != TYPE_ROM) {
|
|
|
|
/*
|
|
|
|
* MAINTENANCE_IN from SCC-2
|
|
|
|
* Check for emulated MI_REPORT_TARGET_PGS
|
|
|
|
*/
|
2012-10-11 01:37:16 +04:00
|
|
|
if ((cdb[1] & 0x1f) == MI_REPORT_TARGET_PGS) {
|
2012-05-31 01:09:10 +04:00
|
|
|
cmd->execute_cmd =
|
|
|
|
target_emulate_report_target_port_groups;
|
|
|
|
}
|
|
|
|
*size = get_unaligned_be32(&cdb[6]);
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* GPCMD_SEND_KEY from multi media commands
|
|
|
|
*/
|
|
|
|
*size = get_unaligned_be16(&cdb[8]);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case MAINTENANCE_OUT:
|
|
|
|
if (dev->transport->get_device_type(dev) != TYPE_ROM) {
|
|
|
|
/*
|
|
|
|
* MAINTENANCE_OUT from SCC-2
|
|
|
|
* Check for emulated MO_SET_TARGET_PGS.
|
|
|
|
*/
|
2012-10-11 01:37:16 +04:00
|
|
|
if (cdb[1] == MO_SET_TARGET_PGS) {
|
2012-05-31 01:09:10 +04:00
|
|
|
cmd->execute_cmd =
|
|
|
|
target_emulate_set_target_port_groups;
|
|
|
|
}
|
|
|
|
*size = get_unaligned_be32(&cdb[6]);
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* GPCMD_SEND_KEY from multi media commands
|
|
|
|
*/
|
|
|
|
*size = get_unaligned_be16(&cdb[8]);
|
|
|
|
}
|
|
|
|
break;
|
2012-05-20 19:59:13 +04:00
|
|
|
default:
|
|
|
|
pr_warn("TARGET_CORE[%s]: Unsupported SCSI Opcode"
|
|
|
|
" 0x%02x, sending CHECK_CONDITION.\n",
|
|
|
|
cmd->se_tfo->get_fabric_name(), cdb[0]);
|
2012-11-07 00:24:09 +04:00
|
|
|
return TCM_UNSUPPORTED_SCSI_OPCODE;
|
2012-05-20 19:59:13 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(spc_parse_cdb);
|