1c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 2c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CDB emulation for non-READ/WRITE commands. 3c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 4c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Copyright (c) 2002, 2003, 2004, 2005 PyX Technologies, Inc. 5c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Copyright (c) 2005, 2006, 2007 SBE, Inc. 6c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Copyright (c) 2007-2010 Rising Tide Systems 7c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Copyright (c) 2008-2010 Linux-iSCSI.org 8c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 9c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Nicholas A. Bellinger <nab@kernel.org> 10c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 11c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * This program is free software; you can redistribute it and/or modify 12c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * it under the terms of the GNU General Public License as published by 13c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * the Free Software Foundation; either version 2 of the License, or 14c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * (at your option) any later version. 15c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 16c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * This program is distributed in the hope that it will be useful, 17c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * but WITHOUT ANY WARRANTY; without even the implied warranty of 18c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * GNU General Public License for more details. 20c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 21c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * You should have received a copy of the GNU General Public License 22c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * along with this program; if not, write to the Free Software 23c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 24c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 25c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 2611650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko#include <linux/kernel.h> 27c9abb9bb0b8451588509192bd53005d65c02986cNicholas Bellinger#include <linux/module.h> 28c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <asm/unaligned.h> 29c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <scsi/scsi.h> 30c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 31c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <target/target_core_base.h> 32c4795fb20edf2fe2c862c8fe9f8b681edeb79ac1Christoph Hellwig#include <target/target_core_backend.h> 33c4795fb20edf2fe2c862c8fe9f8b681edeb79ac1Christoph Hellwig#include <target/target_core_fabric.h> 34e26d99aed42ec6cdc9540d19c77ac5d4dd2c5b00Christoph Hellwig 35e26d99aed42ec6cdc9540d19c77ac5d4dd2c5b00Christoph Hellwig#include "target_core_internal.h" 36c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include "target_core_ua.h" 37c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 38c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 39c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_fill_alua_data(struct se_port *port, unsigned char *buf) 40c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 41c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 42c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; 43c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 44c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 45c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set SCCS for MAINTENANCE_IN + REPORT_TARGET_PORT_GROUPS. 46c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 47c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x80; 48c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 49c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 50c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set TPGS field for explict and/or implict ALUA access type 51c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * and opteration. 52c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 53c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * See spc4r17 section 6.4.2 Table 135 54c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 55c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!port) 56c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return; 57c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; 58c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!tg_pt_gp_mem) 59c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return; 60c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 61c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 62c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; 63c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (tg_pt_gp) 64c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] |= tg_pt_gp->tg_pt_gp_alua_access_type; 65c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 66c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 67c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 68c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 69d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreiertarget_emulate_inquiry_std(struct se_cmd *cmd, char *buf) 70c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 71e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_lun *lun = cmd->se_lun; 725951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 7305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 74089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier /* Set RMB (removable media) for tape devices */ 75089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier if (dev->transport->get_device_type(dev) == TYPE_TAPE) 76089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier buf[1] = 0x80; 77089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier 78c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = dev->transport->get_device_rev(dev); 79c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 80c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 81ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * NORMACA and HISUP = 0, RESPONSE DATA FORMAT = 2 82ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * 83ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * SPC4 says: 84ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * A RESPONSE DATA FORMAT field set to 2h indicates that the 85ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * standard INQUIRY data is in the format defined in this 86ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * standard. Response data format values less than 2h are 87ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * obsolete. Response data format values greater than 2h are 88ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier * reserved. 89ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier */ 90ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier buf[3] = 2; 91ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier 92ce136176fea522fc8f4c16dcae7e8ed1d890ca39Roland Dreier /* 93c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Enable SCCS and TPGS fields for Emulated ALUA 94c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 95e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) 96c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_fill_alua_data(lun->lun_sep, buf); 97c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 98effc6cc8828257c32c37635e737f14fd6e19ecd7Roland Dreier buf[7] = 0x2; /* CmdQue=1 */ 99c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1008359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel snprintf(&buf[8], 8, "LIO-ORG"); 1018359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel snprintf(&buf[16], 16, "%s", dev->se_sub_dev->t10_wwn.model); 1028359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel snprintf(&buf[32], 4, "%s", dev->se_sub_dev->t10_wwn.revision); 103c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 31; /* Set additional length to 31 */ 10405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 105c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 106c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 107c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 108c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* unit serial number */ 109c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 110c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf) 111c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1125951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 113c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 len = 0; 114c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 115c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (dev->se_sub_dev->su_dev_flags & 116c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SDF_EMULATED_VPD_UNIT_SERIAL) { 117c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 unit_serial_len; 118c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1198359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel unit_serial_len = strlen(dev->se_sub_dev->t10_wwn.unit_serial); 120c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len++; /* For NULL Terminator */ 121c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1228359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel len += sprintf(&buf[4], "%s", 1238359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel dev->se_sub_dev->t10_wwn.unit_serial); 124c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len++; /* Extra Byte for NULL Terminator */ 125c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = len; 126c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 127c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 128c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 129c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 130784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellingerstatic void 131b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenkotarget_parse_naa_6h_vendor_specific(struct se_device *dev, unsigned char *buf) 132784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger{ 133784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger unsigned char *p = &dev->se_sub_dev->t10_wwn.unit_serial[0]; 134b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko int cnt; 135b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko bool next = true; 136b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko 137784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger /* 138784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger * Generate up to 36 bits of VENDOR SPECIFIC IDENTIFIER starting on 139784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger * byte 3 bit 3-0 for NAA IEEE Registered Extended DESIGNATOR field 140784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger * format, followed by 64 bits of VENDOR SPECIFIC IDENTIFIER EXTENSION 141784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger * to complete the payload. These are based from VPD=0x80 PRODUCT SERIAL 142784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger * NUMBER set via vpd_unit_serial in target_core_configfs.c to ensure 143784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger * per device uniqeness. 144784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger */ 145b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko for (cnt = 0; *p && cnt < 13; p++) { 146b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko int val = hex_to_bin(*p); 147b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko 148b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko if (val < 0) 149784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger continue; 150b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko 151b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko if (next) { 152b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko next = false; 153b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko buf[cnt++] |= val; 154784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger } else { 155b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko next = true; 156b6b4e61ff4e26d6721b2607ea23402825a38c402Andy Shevchenko buf[cnt] = val << 4; 157784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger } 158784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger } 159784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger} 160784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger 161c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 162c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Device identification VPD, for a complete list of 163c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * DESIGNATOR TYPEs see spc4r17 Table 459. 164c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 165c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 166c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf) 167c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1685951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 169e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_lun *lun = cmd->se_lun; 170c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct se_port *port = NULL; 171c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct se_portal_group *tpg = NULL; 172c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 173c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 174c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; 175e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover unsigned char *prod = &dev->se_sub_dev->t10_wwn.model[0]; 176c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 prod_len; 177c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 unit_serial_len, off = 0; 178c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 len = 0, id_len; 179c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 180c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off = 4; 181c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 182c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 183c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NAA IEEE Registered Extended Assigned designator format, see 184c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * spc4r17 section 7.7.3.6.5 185c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 186c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * We depend upon a target_core_mod/ConfigFS provided 187c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * /sys/kernel/config/target/core/$HBA/$DEV/wwn/vpd_unit_serial 188c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * value in order to return the NAA id. 189c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 190c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!(dev->se_sub_dev->su_dev_flags & SDF_EMULATED_VPD_UNIT_SERIAL)) 191c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_t10_vend_desc; 192c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 193c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* CODE SET == Binary */ 194c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x1; 195c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 196163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == addressed logical unit: 0)b */ 197c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x00; 198c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 199c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier/Designator type == NAA identifier */ 200163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko buf[off++] |= 0x3; 201c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; 202c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 203c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier/Designator length */ 204c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x10; 205c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 206c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 207c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Start NAA IEEE Registered Extended Identifier/Designator 208c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 209c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (0x6 << 4); 210c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 211c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 212c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Use OpenFabrics IEEE Company ID: 00 14 05 213c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 214c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x01; 215c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x40; 216c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = (0x5 << 4); 217c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 218c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 219c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Return ConfigFS Unit Serial Number information for 220c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * VENDOR_SPECIFIC_IDENTIFIER and 221c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * VENDOR_SPECIFIC_IDENTIFIER_EXTENTION 222c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 223784eb99ebad91db4c8c231c4b17f203147ab827bNicholas Bellinger target_parse_naa_6h_vendor_specific(dev, &buf[off]); 22411650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko 225c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len = 20; 226c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off = (len + 4); 227c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 228c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_t10_vend_desc: 229c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 230c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * T10 Vendor Identifier Page, see spc4r17 section 7.7.3.4 231c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 232c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len = 8; /* For Vendor field */ 233c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len = 4; /* For VPD Header */ 234c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len += 8; /* For Vendor field */ 235c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len += strlen(prod); 236c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len++; /* For : */ 237c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 238c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (dev->se_sub_dev->su_dev_flags & 239c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SDF_EMULATED_VPD_UNIT_SERIAL) { 240c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len = 241e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover strlen(&dev->se_sub_dev->t10_wwn.unit_serial[0]); 242c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len++; /* For NULL Terminator */ 243c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 2448359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel id_len += sprintf(&buf[off+12], "%s:%s", prod, 245e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.unit_serial[0]); 246c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 247c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x2; /* ASCII */ 248c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+1] = 0x1; /* T10 Vendor ID */ 249c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+2] = 0x0; 2508359cf43b9dccddeebb0d247146719a14ce6371aJörn Engel memcpy(&buf[off+4], "LIO-ORG", 8); 251c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Extra Byte for NULL Terminator */ 252c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len++; 253c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier Length */ 254c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+3] = id_len; 255c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size for Designation descriptor */ 256c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (id_len + 4); 257c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += (id_len + 4); 258c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 259c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD 260c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 261c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger port = lun->lun_sep; 262c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (port) { 263c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_lu_gp *lu_gp; 264c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 padding, scsi_name_len; 265c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 lu_gp_id = 0; 266c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 tg_pt_gp_id = 0; 267c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 tpgt; 268c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 269c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tpg = port->sep_tpg; 270c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 271c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Relative target port identifer, see spc4r17 272c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.7 273c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 274c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 275c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 276c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 277c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 278e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 279c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 280c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 281163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 282c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 283c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Relative target port identifer */ 284c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x4; 285c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 286c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 287c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Skip over Obsolete field in RTPI payload 288c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * in Table 472 */ 289c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; 290c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((port->sep_rtpi >> 8) & 0xff); 291c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (port->sep_rtpi & 0xff); 292c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 293c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 294c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Target port group identifier, see spc4r17 295c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.8 296c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 297c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 298c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 299c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 300e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->t10_alua.alua_type != 301c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SPC3_ALUA_EMULATED) 302c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 303c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 304c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; 305c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!tg_pt_gp_mem) 306c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 307c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 308c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 309c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; 3106708bb27bb2703da238f21f516034263348af5beAndy Grover if (!tg_pt_gp) { 311c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 312c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 313c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 314c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id; 315c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 316c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 317c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 318e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 319c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 320c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 321163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 322c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 323c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Target port group identifier */ 324c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x5; 325c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 326c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 327c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved Field */ 328c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((tg_pt_gp_id >> 8) & 0xff); 329c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (tg_pt_gp_id & 0xff); 330c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 331c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 332c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Logical Unit Group identifier, see spc4r17 333c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.8 334c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 335c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_lu_gp: 336c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 3376708bb27bb2703da238f21f516034263348af5beAndy Grover if (!lu_gp_mem) 338c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 339c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 340c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 341c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 3426708bb27bb2703da238f21f516034263348af5beAndy Grover if (!lu_gp) { 343c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 344c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 345c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 346c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp_id = lu_gp->lu_gp_id; 347c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 348c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 349c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 350c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Logical Unit Group identifier */ 351c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x6; 352c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 353c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 354c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved Field */ 355c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((lu_gp_id >> 8) & 0xff); 356c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (lu_gp_id & 0xff); 357c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 358c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 359c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * SCSI name string designator, see spc4r17 360c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.11 361c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 362c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 363c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 364c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 365c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_scsi_name: 366e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover scsi_name_len = strlen(tpg->se_tpg_tfo->tpg_get_wwn(tpg)); 367c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* UTF-8 ",t,0x<16-bit TPGT>" + NULL Terminator */ 368c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 10; 369c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Check for 4-byte padding */ 370c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger padding = ((-scsi_name_len) & 3); 371c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (padding != 0) 372c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += padding; 373c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size + Designation descriptor */ 374c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 4; 375c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 376c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 377e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 378c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x3; /* CODE SET == UTF-8 */ 379c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 380163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 381c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 382c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == SCSI name string */ 383c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x8; 384c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved and length */ 385c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 386c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * SCSI name string identifer containing, $FABRIC_MOD 387c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * dependent information. For LIO-Target and iSCSI 388c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Target Port, this means "<iSCSI name>,t,0x<TPGT> in 389c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * UTF-8 encoding. 390c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 391e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover tpgt = tpg->se_tpg_tfo->tpg_get_tag(tpg); 392c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len = sprintf(&buf[off], "%s,t,0x%04x", 393e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover tpg->se_tpg_tfo->tpg_get_wwn(tpg), tpgt); 394c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 1 /* Include NULL terminator */; 395c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 396c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The null-terminated, null-padded (see 4.4.2) SCSI 397c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NAME STRING field contains a UTF-8 format string. 398c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The number of bytes in the SCSI NAME STRING field 399c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * (i.e., the value in the DESIGNATOR LENGTH field) 400c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * shall be no larger than 256 and shall be a multiple 401c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * of four. 402c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 403c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (padding) 404c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += padding; 405c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 406c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off-1] = scsi_name_len; 407c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += scsi_name_len; 408c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size + Designation descriptor */ 409c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (scsi_name_len + 4); 410c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 411c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = ((len >> 8) & 0xff); 412c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (len & 0xff); /* Page Length for VPD 0x83 */ 413c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 414c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 415c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 416c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Extended INQUIRY Data VPD Page */ 417c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 418c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) 419c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 4201289a0571c037b4757f60597d646aedb70361ec3Roland Dreier buf[3] = 0x3c; 421c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Set HEADSUP, ORDSUP, SIMPSUP */ 422c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x07; 423c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 424c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* If WriteCache emulation is enabled, set V_SUP */ 4255951146dea1ac8ff2f177477c907084d63913cadAndy Grover if (cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) 426c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[6] = 0x01; 427c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 428c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 429c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 430c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Block Limits VPD page */ 431c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 432c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) 433c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 4345951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 435c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int have_tp = 0; 436c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 437c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 438c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Following sbc3r22 section 6.5.3 Block Limits VPD page, when 439c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * emulate_tpu=1 or emulate_tpws=1 we will be expect a 440c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * different page length for Thin Provisioning. 441c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 442e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 443c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger have_tp = 1; 444c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 445c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 446c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = have_tp ? 0x3c : 0x10; 447c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 4486708bb27bb2703da238f21f516034263348af5beAndy Grover /* Set WSNZ to 1 */ 4496708bb27bb2703da238f21f516034263348af5beAndy Grover buf[4] = 0x01; 4506708bb27bb2703da238f21f516034263348af5beAndy Grover 451c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 452c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL TRANSFER LENGTH GRANULARITY 453c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 454c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be16(1, &buf[6]); 455c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 456c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 457c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM TRANSFER LENGTH 458c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 459015487b89f27d91d95a056cdc3c85e6c729bff12Roland Dreier put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.fabric_max_sectors, &buf[8]); 460c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 461c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 462c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL TRANSFER LENGTH 463c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 464e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.optimal_sectors, &buf[12]); 465c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 466c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 467d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier * Exit now if we don't support TP. 468c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 469d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier if (!have_tp) 470c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 471c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 472c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 473c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM UNMAP LBA COUNT 474c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 475e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count, &buf[20]); 476c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 477c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 478c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT 479c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 480e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count, 481c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger &buf[24]); 482c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 483c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 484c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL UNMAP GRANULARITY 485c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 486e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity, &buf[28]); 487c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 488c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 489c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * UNMAP GRANULARITY ALIGNMENT 490c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 491e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment, 492c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger &buf[32]); 493e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment != 0) 494c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[32] |= 0x80; /* Set the UGAVALID bit */ 495c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 496c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 497c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 498c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 499e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier/* Block Device Characteristics VPD page */ 500e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreierstatic int 501e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreiertarget_emulate_evpd_b1(struct se_cmd *cmd, unsigned char *buf) 502e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier{ 503e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier struct se_device *dev = cmd->se_dev; 504e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 505e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[0] = dev->transport->get_device_type(dev); 506e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[3] = 0x3c; 507d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier buf[5] = dev->se_sub_dev->se_dev_attrib.is_nonrot ? 1 : 0; 508e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 509e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier return 0; 510e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier} 511e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 512c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Thin Provisioning VPD */ 513c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 514c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf) 515c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 5165951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 517c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 518c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 519c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From sbc3r22 section 6.5.4 Thin Provisioning VPD page: 520c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 521c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The PAGE LENGTH field is defined in SPC-4. If the DP bit is set to 522c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * zero, then the page length shall be set to 0004h. If the DP bit 523c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * is set to one, then the page length shall be set to the value 524c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * defined in table 162. 525c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 526c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 527c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 528c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 529c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set Hardcoded length mentioned above for DP=0 530c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 531c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be16(0x0004, &buf[2]); 532c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 533c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 534c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The THRESHOLD EXPONENT field indicates the threshold set size in 535c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * LBAs as a power of 2 (i.e., the threshold set size is equal to 536c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 2(threshold exponent)). 537c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 538c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note that this is currently set to 0x00 as mkp says it will be 539c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * changing again. We can enable this once it has settled in T10 540c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * and is actually used by Linux/SCSI ML code. 541c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 542c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 0x00; 543c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 544c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 545c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPU bit set to one indicates that the device server supports 546c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * the UNMAP command (see 5.25). A TPU bit set to zero indicates 547c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * that the device server does not support the UNMAP command. 548c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 549e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu != 0) 550c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x80; 551c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 552c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 553c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPWS bit set to one indicates that the device server supports 554c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * the use of the WRITE SAME (16) command (see 5.42) to unmap LBAs. 555c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPWS bit set to zero indicates that the device server does not 556c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * support the use of the WRITE SAME (16) command to unmap LBAs. 557c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 558e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpws != 0) 559c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] |= 0x40; 560c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 561c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 562c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 563c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 564c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 565b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreiertarget_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf); 566b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 567b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic struct { 568b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier uint8_t page; 569b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier int (*emulate)(struct se_cmd *, unsigned char *); 570b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier} evpd_handlers[] = { 571b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x00, .emulate = target_emulate_evpd_00 }, 572b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x80, .emulate = target_emulate_evpd_80 }, 573b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x83, .emulate = target_emulate_evpd_83 }, 574b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x86, .emulate = target_emulate_evpd_86 }, 575b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0xb0, .emulate = target_emulate_evpd_b0 }, 576e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier { .page = 0xb1, .emulate = target_emulate_evpd_b1 }, 577b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0xb2, .emulate = target_emulate_evpd_b2 }, 578b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier}; 579b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 580b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier/* supported vital product data pages */ 581b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic int 582b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreiertarget_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf) 583b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier{ 584b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier int p; 585b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 586b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier /* 587b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * Only report the INQUIRY EVPD=1 pages after a valid NAA 588b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * Registered Extended LUN WWN has been set via ConfigFS 589b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * during device creation/restart. 590b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier */ 591b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cmd->se_dev->se_sub_dev->su_dev_flags & 592b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier SDF_EMULATED_VPD_UNIT_SERIAL) { 593b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[3] = ARRAY_SIZE(evpd_handlers); 594d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p) 595b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[p + 4] = evpd_handlers[p].page; 596b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier } 597b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 598b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier return 0; 599b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier} 600b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 6015bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_inquiry(struct se_task *task) 602c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 6036ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig struct se_cmd *cmd = task->task_se_cmd; 6045951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 605089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier struct se_portal_group *tpg = cmd->se_lun->lun_sep->sep_tpg; 606d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier unsigned char *buf, *map_buf; 607a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = cmd->t_task_cdb; 60805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int p, ret; 609c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 610d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier map_buf = transport_kmap_data_sg(cmd); 611d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier /* 612d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier * If SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC is not set, then we 613d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier * know we actually allocated a full page. Otherwise, if the 614d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier * data buffer is too small, allocate a temporary buffer so we 615d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier * don't have to worry about overruns in all our INQUIRY 616d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier * emulation handling. 617d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier */ 618d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier if (cmd->data_length < SE_INQUIRY_BUF && 619d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier (cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC)) { 620d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier buf = kzalloc(SE_INQUIRY_BUF, GFP_KERNEL); 621d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier if (!buf) { 622d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier transport_kunmap_data_sg(cmd); 623d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; 624d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier return -ENOMEM; 625d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier } 626d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier } else { 627d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier buf = map_buf; 628d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier } 629d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier 630089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier if (dev == tpg->tpg_virt_lun0.lun_se_dev) 631089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier buf[0] = 0x3f; /* Not connected */ 632089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier else 633089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier buf[0] = dev->transport->get_device_type(dev); 634089461dda1770c10fea0b988ff74519a9be81d7eRoland Dreier 635d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig if (!(cdb[1] & 0x1)) { 636bf0053550aebe56f3bb5dd793e9de69238b5b945Roland Dreier if (cdb[2]) { 637bf0053550aebe56f3bb5dd793e9de69238b5b945Roland Dreier pr_err("INQUIRY with EVPD==0 but PAGE CODE=%02x\n", 638bf0053550aebe56f3bb5dd793e9de69238b5b945Roland Dreier cdb[2]); 639bf0053550aebe56f3bb5dd793e9de69238b5b945Roland Dreier cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD; 640d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier ret = -EINVAL; 641d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier goto out; 642bf0053550aebe56f3bb5dd793e9de69238b5b945Roland Dreier } 643bf0053550aebe56f3bb5dd793e9de69238b5b945Roland Dreier 644d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier ret = target_emulate_inquiry_std(cmd, buf); 645d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig goto out; 646d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig } 647c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 648d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p) { 649b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cdb[2] == evpd_handlers[p].page) { 650b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[1] = cdb[2]; 65105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover ret = evpd_handlers[p].emulate(cmd, buf); 652d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier goto out; 653b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier } 654d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig } 655c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 6566708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]); 657bb1acb2ee038a6c13ee99e0b9fb44dacb4a9de84Roland Dreier cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD; 658d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig ret = -EINVAL; 659d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig 660d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwigout: 661d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier if (buf != map_buf) { 662d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier memcpy(map_buf, buf, cmd->data_length); 663d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier kfree(buf); 664d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier } 665d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier transport_kunmap_data_sg(cmd); 666d95b82461c56a6ff8ff248b101049a69ebb20278Roland Dreier 667d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig if (!ret) { 668d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 669d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 670d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig } 671d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig return ret; 672c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 673c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 6745bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_readcapacity(struct se_task *task) 675c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 6766ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig struct se_cmd *cmd = task->task_se_cmd; 6775951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 67805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 679904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger unsigned long long blocks_long = dev->transport->get_blocks(dev); 680904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger u32 blocks; 681904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger 682904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger if (blocks_long >= 0x00000000ffffffff) 683904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger blocks = 0xffffffff; 684904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger else 685904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger blocks = (u32)blocks_long; 686c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 6874949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover buf = transport_kmap_data_sg(cmd); 68805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 689c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (blocks >> 24) & 0xff; 690c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = (blocks >> 16) & 0xff; 691c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = (blocks >> 8) & 0xff; 692c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = blocks & 0xff; 693e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[4] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff; 694e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[5] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff; 695e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[6] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff; 696e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[7] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff; 697c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 6984949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover transport_kunmap_data_sg(cmd); 69905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 700d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 701d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 702c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 703c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 704c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 7055bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_readcapacity_16(struct se_task *task) 706c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 7076ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig struct se_cmd *cmd = task->task_se_cmd; 7085951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 70905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 710c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned long long blocks = dev->transport->get_blocks(dev); 711c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 7124949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover buf = transport_kmap_data_sg(cmd); 71305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 714c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (blocks >> 56) & 0xff; 715c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = (blocks >> 48) & 0xff; 716c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = (blocks >> 40) & 0xff; 717c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (blocks >> 32) & 0xff; 718c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = (blocks >> 24) & 0xff; 719c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = (blocks >> 16) & 0xff; 720c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[6] = (blocks >> 8) & 0xff; 721c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = blocks & 0xff; 722e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[8] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff; 723e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[9] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff; 724e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[10] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff; 725e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[11] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff; 726c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 727c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set Thin Provisioning Enable bit following sbc3r22 in section 728c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * READ CAPACITY (16) byte 14 if emulate_tpu or emulate_tpws is enabled. 729c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 730e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 731c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[14] = 0x80; 732c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 7334949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover transport_kunmap_data_sg(cmd); 73405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 735d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 736d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 737c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 738c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 739c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 740c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 741c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_rwrecovery(unsigned char *p) 742c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 743c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x01; 744c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x0a; 745c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 746c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 12; 747c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 748c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 749c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 750c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_control(struct se_device *dev, unsigned char *p) 751c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 752c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x0a; 753c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x0a; 754c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[2] = 2; 755c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 7565de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * From spc4r23, 7.4.7 Control mode page 7575de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7585de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * The QUEUE ALGORITHM MODIFIER field (see table 368) specifies 7595de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * restrictions on the algorithm used for reordering commands 7605de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * having the SIMPLE task attribute (see SAM-4). 7615de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7625de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * Table 368 -- QUEUE ALGORITHM MODIFIER field 7635de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * Code Description 7645de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 0h Restricted reordering 7655de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 1h Unrestricted reordering allowed 7665de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 2h to 7h Reserved 7675de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 8h to Fh Vendor specific 7685de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7695de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * A value of zero in the QUEUE ALGORITHM MODIFIER field specifies that 7705de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * the device server shall order the processing sequence of commands 7715de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * having the SIMPLE task attribute such that data integrity is maintained 7725de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * for that I_T nexus (i.e., if the transmission of new SCSI transport protocol 7735de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * requests is halted at any time, the final value of all data observable 7745de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * on the medium shall be the same as if all the commands had been processed 7755de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * with the ORDERED task attribute). 7765de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7775de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * A value of one in the QUEUE ALGORITHM MODIFIER field specifies that the 7785de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * device server may reorder the processing sequence of commands having the 7795de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * SIMPLE task attribute in any manner. Any data integrity exposures related to 7805de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * command sequence order shall be explicitly handled by the application client 7815de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * through the selection of appropriate ommands and task attributes. 7825de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger */ 7835de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger p[3] = (dev->se_sub_dev->se_dev_attrib.emulate_rest_reord == 1) ? 0x00 : 0x10; 7845de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger /* 785c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From spc4r17, section 7.4.6 Control mode Page 786c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 787c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Unit Attention interlocks control (UN_INTLCK_CTRL) to code 00b 788c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 789c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 00b: The logical unit shall clear any unit attention condition 790c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 791c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall not establish a unit attention condition when a com- 792c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * mand is completed with BUSY, TASK SET FULL, or RESERVATION CONFLICT 793c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status. 794c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 795c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 10b: The logical unit shall not clear any unit attention condition 796c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 797c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall not establish a unit attention condition when 798c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * a command is completed with BUSY, TASK SET FULL, or RESERVATION 799c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CONFLICT status. 800c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 801c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 11b a The logical unit shall not clear any unit attention condition 802c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 803c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall establish a unit attention condition for the 804c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * initiator port associated with the I_T nexus on which the BUSY, 805c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * TASK SET FULL, or RESERVATION CONFLICT status is being returned. 806c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Depending on the status, the additional sense code shall be set to 807c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * PREVIOUS BUSY STATUS, PREVIOUS TASK SET FULL STATUS, or PREVIOUS 808c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * RESERVATION CONFLICT STATUS. Until it is cleared by a REQUEST SENSE 809c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * command, a unit attention condition shall be established only once 810c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * for a BUSY, TASK SET FULL, or RESERVATION CONFLICT status regardless 811c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * to the number of commands completed with one of those status codes. 812c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 813e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover p[4] = (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 : 814e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00; 815c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 816c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From spc4r17, section 7.4.6 Control mode Page 817c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 818c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Task Aborted Status (TAS) bit set to zero. 819c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 820c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A task aborted status (TAS) bit set to zero specifies that aborted 821c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * tasks shall be terminated by the device server without any response 822c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * to the application client. A TAS bit set to one specifies that tasks 823c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * aborted by the actions of an I_T nexus other than the I_T nexus on 824c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * which the command was received shall be completed with TASK ABORTED 825c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status (see SAM-4). 826c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 827e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover p[5] = (dev->se_sub_dev->se_dev_attrib.emulate_tas) ? 0x40 : 0x00; 828c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[8] = 0xff; 829c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[9] = 0xff; 830c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[11] = 30; 831c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 832c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 12; 833c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 834c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 835c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 836c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_caching(struct se_device *dev, unsigned char *p) 837c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 838c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x08; 839c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x12; 840e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) 841c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[2] = 0x04; /* Write Cache Enable */ 842c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[12] = 0x20; /* Disabled Read Ahead */ 843c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 844c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 20; 845c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 846c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 847c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 848c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_write_protect(unsigned char *buf, int type) 849c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 850c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 851c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * I believe that the WP bit (bit 7) in the mode header is the same for 852c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * all device types.. 853c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 854c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (type) { 855c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_DISK: 856c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_TAPE: 857c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 858c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] |= 0x80; /* WP bit */ 859c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 860c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 861c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 862c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 863c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 864c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_dpofua(unsigned char *buf, int type) 865c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 866c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (type) { 867c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_DISK: 868c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] |= 0x10; /* DPOFUA bit */ 869c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 870c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 871c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 872c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 873c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 874c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 8755bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_modesense(struct se_task *task) 876c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 8776ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig struct se_cmd *cmd = task->task_se_cmd; 8785951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 879a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover char *cdb = cmd->t_task_cdb; 88005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *rbuf; 881c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int type = dev->transport->get_device_type(dev); 8826ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig int ten = (cmd->t_task_cdb[0] == MODE_SENSE_10); 8836ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig int offset = ten ? 8 : 4; 884c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int length = 0; 885c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned char buf[SE_MODE_PAGE_BUF]; 886c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 887c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memset(buf, 0, SE_MODE_PAGE_BUF); 888c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 889c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (cdb[2] & 0x3f) { 890c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x01: 891c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_rwrecovery(&buf[offset]); 892c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 893c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x08: 894c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_caching(dev, &buf[offset]); 895c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 896c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x0a: 897c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_control(dev, &buf[offset]); 898c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 899c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x3f: 900c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_rwrecovery(&buf[offset]); 901c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length += target_modesense_caching(dev, &buf[offset+length]); 902c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length += target_modesense_control(dev, &buf[offset+length]); 903c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 904c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 905f15ea5780d08e4c96930c0d607d05e480ec588c8Roland Dreier pr_err("MODE SENSE: unimplemented page/subpage: 0x%02x/0x%02x\n", 906f15ea5780d08e4c96930c0d607d05e480ec588c8Roland Dreier cdb[2] & 0x3f, cdb[3]); 90703e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger cmd->scsi_sense_reason = TCM_UNKNOWN_MODE_PAGE; 90803e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger return -EINVAL; 909c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 910c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset += length; 911c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 912c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ten) { 913c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset -= 2; 914c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (offset >> 8) & 0xff; 915c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = offset & 0xff; 916c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 917e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || 918c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve && 919c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) 920c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_write_protect(&buf[3], type); 921c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 922e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) && 923e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0)) 924c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_dpofua(&buf[3], type); 925c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 926c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((offset + 2) > cmd->data_length) 927c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = cmd->data_length; 928c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 929c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } else { 930c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset -= 1; 931c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = offset & 0xff; 932c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 933e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || 934c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve && 935c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) 936c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_write_protect(&buf[2], type); 937c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 938e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) && 939e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0)) 940c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_dpofua(&buf[2], type); 941c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 942c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((offset + 1) > cmd->data_length) 943c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = cmd->data_length; 944c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 94505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 9464949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover rbuf = transport_kmap_data_sg(cmd); 947c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memcpy(rbuf, buf, offset); 9484949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover transport_kunmap_data_sg(cmd); 949c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 950d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 951d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 952c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 953c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 954c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 9555bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_request_sense(struct se_task *task) 956c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 9576ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig struct se_cmd *cmd = task->task_se_cmd; 958a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = cmd->t_task_cdb; 95905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 960c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u8 ua_asc = 0, ua_ascq = 0; 96105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int err = 0; 962c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 963c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cdb[1] & 0x01) { 9646708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("REQUEST_SENSE description emulation not" 965c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " supported\n"); 96603e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD; 96703e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger return -ENOSYS; 968c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 96905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 9704949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover buf = transport_kmap_data_sg(cmd); 97105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 9726708bb27bb2703da238f21f516034263348af5beAndy Grover if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { 973c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 974c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CURRENT ERROR, UNIT ATTENTION 975c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 976c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = 0x70; 977c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; 97895fe1ee41e23fa271416da67483594dde74bc6caSebastian Andrzej Siewior 97995fe1ee41e23fa271416da67483594dde74bc6caSebastian Andrzej Siewior if (cmd->data_length < 18) { 980c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x00; 98105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover err = -EINVAL; 98205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto end; 983c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 984c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 985c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The Additional Sense Code (ASC) from the UNIT ATTENTION 986c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 987c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASC_KEY_OFFSET] = ua_asc; 988c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASCQ_KEY_OFFSET] = ua_ascq; 989c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x0A; 990c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } else { 991c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 992c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CURRENT ERROR, NO SENSE 993c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 994c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = 0x70; 995c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE; 99695fe1ee41e23fa271416da67483594dde74bc6caSebastian Andrzej Siewior 99795fe1ee41e23fa271416da67483594dde74bc6caSebastian Andrzej Siewior if (cmd->data_length < 18) { 998c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x00; 99905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover err = -EINVAL; 100005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto end; 1001c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1002c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1003c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NO ADDITIONAL SENSE INFORMATION 1004c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1005c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASC_KEY_OFFSET] = 0x00; 1006c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x0A; 1007c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1008c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 100905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Groverend: 10104949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover transport_kunmap_data_sg(cmd); 1011d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 1012d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 1013c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 1014c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1015c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1016c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 1017c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support. 1018c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note this is not used for TCM/pSCSI passthrough 1019c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 10205bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_unmap(struct se_task *task) 1021c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1022e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 10235951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 102405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf, *ptr = NULL; 1025a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = &cmd->t_task_cdb[0]; 1026c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger sector_t lba; 1027c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned int size = cmd->data_length, range; 102805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int ret = 0, offset; 1029c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned short dl, bd_dl; 1030c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 10316ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig if (!dev->transport->do_discard) { 10326ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig pr_err("UNMAP emulation not supported for: %s\n", 10336ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig dev->transport->name); 103403e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE; 103503e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger return -ENOSYS; 10366ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig } 10376ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig 1038c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* First UNMAP block descriptor starts at 8 byte offset */ 1039c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = 8; 1040c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger size -= 8; 1041c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dl = get_unaligned_be16(&cdb[0]); 1042c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger bd_dl = get_unaligned_be16(&cdb[2]); 104305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 10444949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover buf = transport_kmap_data_sg(cmd); 104505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 1046c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ptr = &buf[offset]; 10476708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("UNMAP: Sub: %s Using dl: %hu bd_dl: %hu size: %hu" 1048c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " ptr: %p\n", dev->transport->name, dl, bd_dl, size, ptr); 1049c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1050c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger while (size) { 1051c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lba = get_unaligned_be64(&ptr[0]); 1052c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger range = get_unaligned_be32(&ptr[8]); 10536708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("UNMAP: Using lba: %llu and range: %u\n", 1054c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (unsigned long long)lba, range); 1055c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1056c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = dev->transport->do_discard(dev, lba, range); 1057c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) { 10586708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("blkdev_issue_discard() failed: %d\n", 1059c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret); 106005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto err; 1061c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1062c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1063c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ptr += 16; 1064c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger size -= 16; 1065c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1066c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 106705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grovererr: 10684949314c7283ea4f9ade182ca599583b89f7edd6Andy Grover transport_kunmap_data_sg(cmd); 1069d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig if (!ret) { 1070d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 1071d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 1072d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig } 107305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover return ret; 1074c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1075c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1076c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 1077c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support. 1078c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note this is not used for TCM/pSCSI passthrough 1079c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 10805bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_write_same(struct se_task *task) 1081c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1082e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 10835951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 1084a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover sector_t range; 1085a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover sector_t lba = cmd->t_task_lba; 10866ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig u32 num_blocks; 1087c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int ret; 10886ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig 10896ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig if (!dev->transport->do_discard) { 10906ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig pr_err("WRITE_SAME emulation not supported" 10916ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig " for: %s\n", dev->transport->name); 109203e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE; 109303e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger return -ENOSYS; 10946ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig } 10956ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig 10966ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig if (cmd->t_task_cdb[0] == WRITE_SAME) 10976ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig num_blocks = get_unaligned_be16(&cmd->t_task_cdb[7]); 10986ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig else if (cmd->t_task_cdb[0] == WRITE_SAME_16) 10996ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig num_blocks = get_unaligned_be32(&cmd->t_task_cdb[10]); 11006ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig else /* WRITE_SAME_32 via VARIABLE_LENGTH_CMD */ 11016ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig num_blocks = get_unaligned_be32(&cmd->t_task_cdb[28]); 11026ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig 1103dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger /* 1104706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger * Use the explicit range when non zero is supplied, otherwise calculate 1105706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger * the remaining range based on ->get_blocks() - starting LBA. 1106dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger */ 1107dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger if (num_blocks != 0) 1108dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger range = num_blocks; 1109dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger else 1110dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger range = (dev->transport->get_blocks(dev) - lba); 1111c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 11126708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("WRITE_SAME UNMAP: LBA: %llu Range: %llu\n", 1113dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger (unsigned long long)lba, (unsigned long long)range); 1114c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1115c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = dev->transport->do_discard(dev, lba, range); 1116c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) { 11176708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("blkdev_issue_discard() failed for WRITE_SAME\n"); 1118e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return ret; 1119c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1120c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1121d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 1122d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 1123c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 1124c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1125c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 11265bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_synchronize_cache(struct se_task *task) 11276ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig{ 11286ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig struct se_device *dev = task->task_se_cmd->se_dev; 112903e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger struct se_cmd *cmd = task->task_se_cmd; 11306ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig 11316ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig if (!dev->transport->do_sync_cache) { 11326ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig pr_err("SYNCHRONIZE_CACHE emulation not supported" 11336ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig " for: %s\n", dev->transport->name); 113403e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE; 113503e98c9eb916f3f0868c1dc344dde2a60287ff72Nicholas Bellinger return -ENOSYS; 11366ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig } 11376ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig 11386ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig dev->transport->do_sync_cache(task); 11396ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig return 0; 11406ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig} 11416ed5a557905f1c4e9ca5f8a6d607303a12d097e1Christoph Hellwig 11425bda90c8f20f0af93375721533f4081a40fa6f41Christoph Hellwigint target_emulate_noop(struct se_task *task) 1143d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig{ 1144d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig task->task_scsi_status = GOOD; 1145d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig transport_complete_task(task, 1); 1146d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig return 0; 1147d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig} 1148d29a5b6acc4b63d4e05ff554509df6fbeaf527cdChristoph Hellwig 1149485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig/* 1150485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig * Write a CDB into @cdb that is based on the one the intiator sent us, 1151485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig * but updated to only cover the sectors that the current task handles. 1152485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig */ 1153485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwigvoid target_get_task_cdb(struct se_task *task, unsigned char *cdb) 1154485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig{ 1155485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig struct se_cmd *cmd = task->task_se_cmd; 1156b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig unsigned int cdb_len = scsi_command_size(cmd->t_task_cdb); 1157485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig 1158b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig memcpy(cdb, cmd->t_task_cdb, cdb_len); 1159485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig if (cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB) { 1160b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig unsigned long long lba = task->task_lba; 1161b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig u32 sectors = task->task_sectors; 1162b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig 1163b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig switch (cdb_len) { 1164b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig case 6: 1165b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig /* 21-bit LBA and 8-bit sectors */ 1166b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig cdb[1] = (lba >> 16) & 0x1f; 1167b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig cdb[2] = (lba >> 8) & 0xff; 1168b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig cdb[3] = lba & 0xff; 1169b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig cdb[4] = sectors & 0xff; 1170b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig break; 1171b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig case 10: 1172b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig /* 32-bit LBA and 16-bit sectors */ 1173b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be32(lba, &cdb[2]); 1174b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be16(sectors, &cdb[7]); 1175b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig break; 1176b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig case 12: 1177b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig /* 32-bit LBA and 32-bit sectors */ 1178b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be32(lba, &cdb[2]); 1179b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be32(sectors, &cdb[6]); 1180b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig break; 1181b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig case 16: 1182b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig /* 64-bit LBA and 32-bit sectors */ 1183b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be64(lba, &cdb[2]); 1184b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be32(sectors, &cdb[10]); 1185b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig break; 1186b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig case 32: 1187b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig /* 64-bit LBA and 32-bit sectors, extended CDB */ 1188b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be64(lba, &cdb[12]); 1189b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig put_unaligned_be32(sectors, &cdb[28]); 1190b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig break; 1191b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig default: 1192b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig BUG(); 1193b937d27052e5759b1308782166fe47bc76e05b4dChristoph Hellwig } 1194485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig } 1195485fd0d1e3b8010b538bd0b209f3592acc825677Christoph Hellwig} 1196485fd0d1e3b8010b538bd0b209f3592acc825677Christoph HellwigEXPORT_SYMBOL(target_get_task_cdb); 1197