target_core_cdb.c revision 11650b859681e03fdbf26277fcfc5f1f62186703
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> 27c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <asm/unaligned.h> 28c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <scsi/scsi.h> 29c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 30c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <target/target_core_base.h> 31c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <target/target_core_transport.h> 32c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include <target/target_core_fabric_ops.h> 33c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger#include "target_core_ua.h" 34c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 35c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 36c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_fill_alua_data(struct se_port *port, unsigned char *buf) 37c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 38c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 39c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; 40c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 41c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 42c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set SCCS for MAINTENANCE_IN + REPORT_TARGET_PORT_GROUPS. 43c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 44c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x80; 45c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 46c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 47c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set TPGS field for explict and/or implict ALUA access type 48c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * and opteration. 49c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 50c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * See spc4r17 section 6.4.2 Table 135 51c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 52c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!port) 53c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return; 54c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; 55c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!tg_pt_gp_mem) 56c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return; 57c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 58c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 59c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; 60c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (tg_pt_gp) 61c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] |= tg_pt_gp->tg_pt_gp_alua_access_type; 62c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 63c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 64c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 65c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 66c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_inquiry_std(struct se_cmd *cmd) 67c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 68e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_lun *lun = cmd->se_lun; 695951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 7005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 71c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 72c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 73c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure we at least have 6 bytes of INQUIRY response 74c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * payload going back for EVPD=0 75c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 76c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 6) { 776708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("SCSI Inquiry payload length: %u" 78c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for EVPD=0\n", cmd->data_length); 79e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return -EINVAL; 80c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 81c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 8205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 8305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 84c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 85c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (buf[0] == TYPE_TAPE) 86c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = 0x80; 87c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = dev->transport->get_device_rev(dev); 88c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 89c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 90c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Enable SCCS and TPGS fields for Emulated ALUA 91c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 92e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) 93c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_fill_alua_data(lun->lun_sep, buf); 94c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 95c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 8) { 96c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 1; /* Set additional length to 1 */ 9705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto out; 98c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 99c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 100c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x32; /* Sync=1 and CmdQue=1 */ 101c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 102c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 103c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Do not include vendor, product, reversion info in INQUIRY 104c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * response payload for cdbs with a small allocation length. 105c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 106c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 36) { 107c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 3; /* Set additional length to 3 */ 10805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto out; 109c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 110c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 111c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger snprintf((unsigned char *)&buf[8], 8, "LIO-ORG"); 112c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger snprintf((unsigned char *)&buf[16], 16, "%s", 113e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.model[0]); 114c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger snprintf((unsigned char *)&buf[32], 4, "%s", 115e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.revision[0]); 116c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 31; /* Set additional length to 31 */ 11705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 11805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Groverout: 11905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 120c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 121c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 122c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 123c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* unit serial number */ 124c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 125c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf) 126c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1275951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 128c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 len = 0; 129c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 130c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (dev->se_sub_dev->su_dev_flags & 131c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SDF_EMULATED_VPD_UNIT_SERIAL) { 132c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 unit_serial_len; 133c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 134c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len = 135e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover strlen(&dev->se_sub_dev->t10_wwn.unit_serial[0]); 136c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len++; /* For NULL Terminator */ 137c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 138c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + unit_serial_len) > cmd->data_length) { 139c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += unit_serial_len; 140c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = ((len >> 8) & 0xff); 141c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (len & 0xff); 142c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 143c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 144c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += sprintf((unsigned char *)&buf[4], "%s", 145e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.unit_serial[0]); 146c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len++; /* Extra Byte for NULL Terminator */ 147c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = len; 148c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 149c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 150c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 151c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 152c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 153c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Device identification VPD, for a complete list of 154c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * DESIGNATOR TYPEs see spc4r17 Table 459. 155c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 156c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 157c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf) 158c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1595951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 160e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_lun *lun = cmd->se_lun; 161c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct se_port *port = NULL; 162c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct se_portal_group *tpg = NULL; 163c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 164c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 165c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; 166e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover unsigned char *prod = &dev->se_sub_dev->t10_wwn.model[0]; 167c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 prod_len; 168c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 unit_serial_len, off = 0; 169c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 len = 0, id_len; 170c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 171c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off = 4; 172c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 173c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 174c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NAA IEEE Registered Extended Assigned designator format, see 175c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * spc4r17 section 7.7.3.6.5 176c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 177c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * We depend upon a target_core_mod/ConfigFS provided 178c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * /sys/kernel/config/target/core/$HBA/$DEV/wwn/vpd_unit_serial 179c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * value in order to return the NAA id. 180c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 181c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!(dev->se_sub_dev->su_dev_flags & SDF_EMULATED_VPD_UNIT_SERIAL)) 182c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_t10_vend_desc; 183c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 184c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (off + 20 > cmd->data_length) 185c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_t10_vend_desc; 186c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 187c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* CODE SET == Binary */ 188c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x1; 189c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 190163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == addressed logical unit: 0)b */ 191c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x00; 192c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 193c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier/Designator type == NAA identifier */ 194163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko buf[off++] |= 0x3; 195c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; 196c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 197c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier/Designator length */ 198c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x10; 199c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 200c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 201c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Start NAA IEEE Registered Extended Identifier/Designator 202c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 203c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (0x6 << 4); 204c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 205c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 206c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Use OpenFabrics IEEE Company ID: 00 14 05 207c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 208c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x01; 209c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x40; 210c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = (0x5 << 4); 211c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 212c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 213c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Return ConfigFS Unit Serial Number information for 214c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * VENDOR_SPECIFIC_IDENTIFIER and 215c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * VENDOR_SPECIFIC_IDENTIFIER_EXTENTION 216c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 21711650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko buf[off++] |= hex_to_bin(dev->se_sub_dev->t10_wwn.unit_serial[0]); 21811650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko hex2bin(&buf[off], &dev->se_sub_dev->t10_wwn.unit_serial[1], 12); 21911650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko 220c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len = 20; 221c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off = (len + 4); 222c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 223c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_t10_vend_desc: 224c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 225c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * T10 Vendor Identifier Page, see spc4r17 section 7.7.3.4 226c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 227c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len = 8; /* For Vendor field */ 228c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len = 4; /* For VPD Header */ 229c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len += 8; /* For Vendor field */ 230c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len += strlen(prod); 231c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len++; /* For : */ 232c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 233c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (dev->se_sub_dev->su_dev_flags & 234c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SDF_EMULATED_VPD_UNIT_SERIAL) { 235c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len = 236e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover strlen(&dev->se_sub_dev->t10_wwn.unit_serial[0]); 237c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len++; /* For NULL Terminator */ 238c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 239c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((len + (id_len + 4) + 240c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (prod_len + unit_serial_len)) > 241c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger cmd->data_length) { 242c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (prod_len + unit_serial_len); 243c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_port; 244c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 245c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len += sprintf((unsigned char *)&buf[off+12], 246c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger "%s:%s", prod, 247e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.unit_serial[0]); 248c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 249c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x2; /* ASCII */ 250c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+1] = 0x1; /* T10 Vendor ID */ 251c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+2] = 0x0; 252c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memcpy((unsigned char *)&buf[off+4], "LIO-ORG", 8); 253c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Extra Byte for NULL Terminator */ 254c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len++; 255c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier Length */ 256c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+3] = id_len; 257c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size for Designation descriptor */ 258c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (id_len + 4); 259c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += (id_len + 4); 260c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 261c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD 262c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 263c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_port: 264c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger port = lun->lun_sep; 265c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (port) { 266c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_lu_gp *lu_gp; 267c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 padding, scsi_name_len; 268c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 lu_gp_id = 0; 269c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 tg_pt_gp_id = 0; 270c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 tpgt; 271c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 272c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tpg = port->sep_tpg; 273c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 274c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Relative target port identifer, see spc4r17 275c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.7 276c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 277c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 278c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 279c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 280c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + 8) > cmd->data_length) { 281c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; 282c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_tpgi; 283c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 284c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 285e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 286c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 287c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 288163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 289c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 290c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Relative target port identifer */ 291c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x4; 292c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 293c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 294c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Skip over Obsolete field in RTPI payload 295c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * in Table 472 */ 296c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; 297c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((port->sep_rtpi >> 8) & 0xff); 298c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (port->sep_rtpi & 0xff); 299c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 300c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 301c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Target port group identifier, see spc4r17 302c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.8 303c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 304c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 305c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 306c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 307c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_tpgi: 308e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->t10_alua.alua_type != 309c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SPC3_ALUA_EMULATED) 310c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 311c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 312c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + 8) > cmd->data_length) { 313c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; 314c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 315c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 316c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; 317c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!tg_pt_gp_mem) 318c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 319c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 320c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 321c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; 3226708bb27bb2703da238f21f516034263348af5beAndy Grover if (!tg_pt_gp) { 323c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 324c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 325c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 326c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id; 327c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 328c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 329c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 330e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 331c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 332c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 333163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 334c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 335c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Target port group identifier */ 336c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x5; 337c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 338c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 339c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved Field */ 340c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((tg_pt_gp_id >> 8) & 0xff); 341c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (tg_pt_gp_id & 0xff); 342c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 343c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 344c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Logical Unit Group identifier, see spc4r17 345c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.8 346c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 347c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_lu_gp: 348c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + 8) > cmd->data_length) { 349c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; 350c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 351c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 352c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 3536708bb27bb2703da238f21f516034263348af5beAndy Grover if (!lu_gp_mem) 354c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 355c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 356c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 357c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 3586708bb27bb2703da238f21f516034263348af5beAndy Grover if (!lu_gp) { 359c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 360c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 361c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 362c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp_id = lu_gp->lu_gp_id; 363c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 364c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 365c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 366c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Logical Unit Group identifier */ 367c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x6; 368c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 369c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 370c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved Field */ 371c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((lu_gp_id >> 8) & 0xff); 372c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (lu_gp_id & 0xff); 373c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 374c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 375c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * SCSI name string designator, see spc4r17 376c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.11 377c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 378c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 379c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 380c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 381c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_scsi_name: 382e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover scsi_name_len = strlen(tpg->se_tpg_tfo->tpg_get_wwn(tpg)); 383c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* UTF-8 ",t,0x<16-bit TPGT>" + NULL Terminator */ 384c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 10; 385c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Check for 4-byte padding */ 386c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger padding = ((-scsi_name_len) & 3); 387c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (padding != 0) 388c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += padding; 389c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size + Designation descriptor */ 390c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 4; 391c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 392c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + scsi_name_len) > cmd->data_length) { 393c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += scsi_name_len; 394c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto set_len; 395c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 396c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 397e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 398c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x3; /* CODE SET == UTF-8 */ 399c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 400163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 401c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 402c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == SCSI name string */ 403c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x8; 404c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved and length */ 405c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 406c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * SCSI name string identifer containing, $FABRIC_MOD 407c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * dependent information. For LIO-Target and iSCSI 408c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Target Port, this means "<iSCSI name>,t,0x<TPGT> in 409c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * UTF-8 encoding. 410c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 411e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover tpgt = tpg->se_tpg_tfo->tpg_get_tag(tpg); 412c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len = sprintf(&buf[off], "%s,t,0x%04x", 413e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover tpg->se_tpg_tfo->tpg_get_wwn(tpg), tpgt); 414c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 1 /* Include NULL terminator */; 415c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 416c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The null-terminated, null-padded (see 4.4.2) SCSI 417c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NAME STRING field contains a UTF-8 format string. 418c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The number of bytes in the SCSI NAME STRING field 419c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * (i.e., the value in the DESIGNATOR LENGTH field) 420c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * shall be no larger than 256 and shall be a multiple 421c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * of four. 422c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 423c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (padding) 424c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += padding; 425c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 426c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off-1] = scsi_name_len; 427c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += scsi_name_len; 428c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size + Designation descriptor */ 429c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (scsi_name_len + 4); 430c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 431c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerset_len: 432c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = ((len >> 8) & 0xff); 433c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (len & 0xff); /* Page Length for VPD 0x83 */ 434c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 435c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 436c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 437c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Extended INQUIRY Data VPD Page */ 438c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 439c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) 440c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 441c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 60) 442c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 443c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 444c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = 0x3c; 445c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Set HEADSUP, ORDSUP, SIMPSUP */ 446c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x07; 447c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 448c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* If WriteCache emulation is enabled, set V_SUP */ 4495951146dea1ac8ff2f177477c907084d63913cadAndy Grover if (cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) 450c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[6] = 0x01; 451c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 452c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 453c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 454c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Block Limits VPD page */ 455c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 456c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) 457c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 4585951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 459c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int have_tp = 0; 460c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 461c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 462c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Following sbc3r22 section 6.5.3 Block Limits VPD page, when 463c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * emulate_tpu=1 or emulate_tpws=1 we will be expect a 464c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * different page length for Thin Provisioning. 465c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 466e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 467c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger have_tp = 1; 468c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 469c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < (0x10 + 4)) { 4706708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("Received data_length: %u" 471c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for EVPD 0xb0\n", 472c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger cmd->data_length); 473e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return -EINVAL; 474c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 475c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 476c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (have_tp && cmd->data_length < (0x3c + 4)) { 4776708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("Received data_length: %u" 478c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for TPE=1 EVPD 0xb0\n", 479c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger cmd->data_length); 480c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger have_tp = 0; 481c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 482c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 483c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 484c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = have_tp ? 0x3c : 0x10; 485c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 4866708bb27bb2703da238f21f516034263348af5beAndy Grover /* Set WSNZ to 1 */ 4876708bb27bb2703da238f21f516034263348af5beAndy Grover buf[4] = 0x01; 4886708bb27bb2703da238f21f516034263348af5beAndy Grover 489c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 490c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL TRANSFER LENGTH GRANULARITY 491c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 492c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be16(1, &buf[6]); 493c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 494c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 495c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM TRANSFER LENGTH 496c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 497e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_sectors, &buf[8]); 498c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 499c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 500c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL TRANSFER LENGTH 501c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 502e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.optimal_sectors, &buf[12]); 503c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 504c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 505c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Exit now if we don't support TP or the initiator sent a too 506c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * short buffer. 507c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 508c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!have_tp || cmd->data_length < (0x3c + 4)) 509c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 510c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 511c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 512c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM UNMAP LBA COUNT 513c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 514e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count, &buf[20]); 515c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 516c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 517c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT 518c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 519e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count, 520c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger &buf[24]); 521c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 522c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 523c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL UNMAP GRANULARITY 524c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 525e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity, &buf[28]); 526c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 527c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 528c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * UNMAP GRANULARITY ALIGNMENT 529c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 530e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment, 531c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger &buf[32]); 532e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment != 0) 533c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[32] |= 0x80; /* Set the UGAVALID bit */ 534c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 535c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 536c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 537c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 538e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier/* Block Device Characteristics VPD page */ 539e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreierstatic int 540e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreiertarget_emulate_evpd_b1(struct se_cmd *cmd, unsigned char *buf) 541e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier{ 542e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier struct se_device *dev = cmd->se_dev; 543e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 544e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[0] = dev->transport->get_device_type(dev); 545e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[3] = 0x3c; 546e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 547e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier if (cmd->data_length >= 5 && 548e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier dev->se_sub_dev->se_dev_attrib.is_nonrot) 549e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[5] = 1; 550e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 551e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier return 0; 552e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier} 553e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 554c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Thin Provisioning VPD */ 555c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 556c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf) 557c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 5585951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 559c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 560c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 561c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From sbc3r22 section 6.5.4 Thin Provisioning VPD page: 562c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 563c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The PAGE LENGTH field is defined in SPC-4. If the DP bit is set to 564c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * zero, then the page length shall be set to 0004h. If the DP bit 565c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * is set to one, then the page length shall be set to the value 566c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * defined in table 162. 567c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 568c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 569c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 570c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 571c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set Hardcoded length mentioned above for DP=0 572c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 573c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be16(0x0004, &buf[2]); 574c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 575c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 576c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The THRESHOLD EXPONENT field indicates the threshold set size in 577c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * LBAs as a power of 2 (i.e., the threshold set size is equal to 578c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 2(threshold exponent)). 579c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 580c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note that this is currently set to 0x00 as mkp says it will be 581c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * changing again. We can enable this once it has settled in T10 582c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * and is actually used by Linux/SCSI ML code. 583c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 584c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 0x00; 585c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 586c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 587c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPU bit set to one indicates that the device server supports 588c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * the UNMAP command (see 5.25). A TPU bit set to zero indicates 589c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * that the device server does not support the UNMAP command. 590c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 591e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu != 0) 592c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x80; 593c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 594c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 595c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPWS bit set to one indicates that the device server supports 596c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * the use of the WRITE SAME (16) command (see 5.42) to unmap LBAs. 597c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPWS bit set to zero indicates that the device server does not 598c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * support the use of the WRITE SAME (16) command to unmap LBAs. 599c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 600e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpws != 0) 601c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] |= 0x40; 602c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 603c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 604c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 605c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 606c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 607b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreiertarget_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf); 608b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 609b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic struct { 610b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier uint8_t page; 611b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier int (*emulate)(struct se_cmd *, unsigned char *); 612b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier} evpd_handlers[] = { 613b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x00, .emulate = target_emulate_evpd_00 }, 614b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x80, .emulate = target_emulate_evpd_80 }, 615b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x83, .emulate = target_emulate_evpd_83 }, 616b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x86, .emulate = target_emulate_evpd_86 }, 617b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0xb0, .emulate = target_emulate_evpd_b0 }, 618e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier { .page = 0xb1, .emulate = target_emulate_evpd_b1 }, 619b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0xb2, .emulate = target_emulate_evpd_b2 }, 620b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier}; 621b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 622b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier/* supported vital product data pages */ 623b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic int 624b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreiertarget_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf) 625b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier{ 626b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier int p; 627b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 628b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cmd->data_length < 8) 629b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier return 0; 630b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier /* 631b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * Only report the INQUIRY EVPD=1 pages after a valid NAA 632b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * Registered Extended LUN WWN has been set via ConfigFS 633b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * during device creation/restart. 634b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier */ 635b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cmd->se_dev->se_sub_dev->su_dev_flags & 636b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier SDF_EMULATED_VPD_UNIT_SERIAL) { 637b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[3] = ARRAY_SIZE(evpd_handlers); 638b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier for (p = 0; p < min_t(int, ARRAY_SIZE(evpd_handlers), 639b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier cmd->data_length - 4); ++p) 640b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[p + 4] = evpd_handlers[p].page; 641b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier } 642b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 643b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier return 0; 644b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier} 645b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 646b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic int 647c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_inquiry(struct se_cmd *cmd) 648c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 6495951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 65005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 651a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = cmd->t_task_cdb; 65205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int p, ret; 653c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 654c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!(cdb[1] & 0x1)) 655c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return target_emulate_inquiry_std(cmd); 656c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 657c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 658c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure we at least have 4 bytes of INQUIRY response 659c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * payload for 0x00 going back for EVPD=1. Note that 0x80 660c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * and 0x83 will check for enough payload data length and 661c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * jump to set_len: label when there is not enough inquiry EVPD 662c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * payload length left for the next outgoing EVPD metadata 663c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 664c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 4) { 6656708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("SCSI Inquiry payload length: %u" 666c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for EVPD=1\n", cmd->data_length); 667e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return -EINVAL; 668c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 66905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 67005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 67105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 672c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 673c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 674b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p) 675b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cdb[2] == evpd_handlers[p].page) { 676b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[1] = cdb[2]; 67705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover ret = evpd_handlers[p].emulate(cmd, buf); 67805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 67905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover return ret; 680b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier } 681c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 68205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 6836708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]); 684b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier return -EINVAL; 685c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 686c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 687c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 688c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_readcapacity(struct se_cmd *cmd) 689c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 6905951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 69105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 692904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger unsigned long long blocks_long = dev->transport->get_blocks(dev); 693904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger u32 blocks; 694904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger 695904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger if (blocks_long >= 0x00000000ffffffff) 696904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger blocks = 0xffffffff; 697904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger else 698904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger blocks = (u32)blocks_long; 699c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 70005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 70105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 702c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (blocks >> 24) & 0xff; 703c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = (blocks >> 16) & 0xff; 704c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = (blocks >> 8) & 0xff; 705c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = blocks & 0xff; 706e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[4] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff; 707e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[5] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff; 708e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[6] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff; 709e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[7] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff; 710c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 711c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set max 32-bit blocks to signal SERVICE ACTION READ_CAPACITY_16 712c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 713e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 714c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be32(0xFFFFFFFF, &buf[0]); 715c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 71605d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 71705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 718c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 719c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 720c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 721c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 722c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_readcapacity_16(struct se_cmd *cmd) 723c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 7245951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 72505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 726c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned long long blocks = dev->transport->get_blocks(dev); 727c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 72805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 72905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 730c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (blocks >> 56) & 0xff; 731c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = (blocks >> 48) & 0xff; 732c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = (blocks >> 40) & 0xff; 733c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (blocks >> 32) & 0xff; 734c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = (blocks >> 24) & 0xff; 735c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = (blocks >> 16) & 0xff; 736c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[6] = (blocks >> 8) & 0xff; 737c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = blocks & 0xff; 738e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[8] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff; 739e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[9] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff; 740e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[10] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff; 741e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[11] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff; 742c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 743c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set Thin Provisioning Enable bit following sbc3r22 in section 744c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * READ CAPACITY (16) byte 14 if emulate_tpu or emulate_tpws is enabled. 745c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 746e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 747c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[14] = 0x80; 748c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 74905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 75005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 751c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 752c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 753c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 754c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 755c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_rwrecovery(unsigned char *p) 756c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 757c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x01; 758c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x0a; 759c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 760c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 12; 761c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 762c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 763c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 764c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_control(struct se_device *dev, unsigned char *p) 765c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 766c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x0a; 767c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x0a; 768c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[2] = 2; 769c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 7705de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * From spc4r23, 7.4.7 Control mode page 7715de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7725de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * The QUEUE ALGORITHM MODIFIER field (see table 368) specifies 7735de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * restrictions on the algorithm used for reordering commands 7745de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * having the SIMPLE task attribute (see SAM-4). 7755de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7765de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * Table 368 -- QUEUE ALGORITHM MODIFIER field 7775de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * Code Description 7785de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 0h Restricted reordering 7795de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 1h Unrestricted reordering allowed 7805de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 2h to 7h Reserved 7815de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 8h to Fh Vendor specific 7825de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7835de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * A value of zero in the QUEUE ALGORITHM MODIFIER field specifies that 7845de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * the device server shall order the processing sequence of commands 7855de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * having the SIMPLE task attribute such that data integrity is maintained 7865de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * for that I_T nexus (i.e., if the transmission of new SCSI transport protocol 7875de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * requests is halted at any time, the final value of all data observable 7885de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * on the medium shall be the same as if all the commands had been processed 7895de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * with the ORDERED task attribute). 7905de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7915de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * A value of one in the QUEUE ALGORITHM MODIFIER field specifies that the 7925de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * device server may reorder the processing sequence of commands having the 7935de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * SIMPLE task attribute in any manner. Any data integrity exposures related to 7945de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * command sequence order shall be explicitly handled by the application client 7955de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * through the selection of appropriate ommands and task attributes. 7965de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger */ 7975de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger p[3] = (dev->se_sub_dev->se_dev_attrib.emulate_rest_reord == 1) ? 0x00 : 0x10; 7985de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger /* 799c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From spc4r17, section 7.4.6 Control mode Page 800c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 801c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Unit Attention interlocks control (UN_INTLCK_CTRL) to code 00b 802c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 803c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 00b: The logical unit shall clear any unit attention condition 804c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 805c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall not establish a unit attention condition when a com- 806c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * mand is completed with BUSY, TASK SET FULL, or RESERVATION CONFLICT 807c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status. 808c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 809c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 10b: The logical unit shall not clear any unit attention condition 810c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 811c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall not establish a unit attention condition when 812c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * a command is completed with BUSY, TASK SET FULL, or RESERVATION 813c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CONFLICT status. 814c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 815c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 11b a The logical unit shall not clear any unit attention condition 816c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 817c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall establish a unit attention condition for the 818c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * initiator port associated with the I_T nexus on which the BUSY, 819c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * TASK SET FULL, or RESERVATION CONFLICT status is being returned. 820c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Depending on the status, the additional sense code shall be set to 821c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * PREVIOUS BUSY STATUS, PREVIOUS TASK SET FULL STATUS, or PREVIOUS 822c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * RESERVATION CONFLICT STATUS. Until it is cleared by a REQUEST SENSE 823c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * command, a unit attention condition shall be established only once 824c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * for a BUSY, TASK SET FULL, or RESERVATION CONFLICT status regardless 825c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * to the number of commands completed with one of those status codes. 826c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 827e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover p[4] = (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 : 828e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00; 829c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 830c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From spc4r17, section 7.4.6 Control mode Page 831c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 832c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Task Aborted Status (TAS) bit set to zero. 833c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 834c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A task aborted status (TAS) bit set to zero specifies that aborted 835c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * tasks shall be terminated by the device server without any response 836c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * to the application client. A TAS bit set to one specifies that tasks 837c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * aborted by the actions of an I_T nexus other than the I_T nexus on 838c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * which the command was received shall be completed with TASK ABORTED 839c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status (see SAM-4). 840c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 841e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover p[5] = (dev->se_sub_dev->se_dev_attrib.emulate_tas) ? 0x40 : 0x00; 842c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[8] = 0xff; 843c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[9] = 0xff; 844c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[11] = 30; 845c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 846c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 12; 847c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 848c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 849c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 850c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_caching(struct se_device *dev, unsigned char *p) 851c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 852c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x08; 853c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x12; 854e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) 855c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[2] = 0x04; /* Write Cache Enable */ 856c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[12] = 0x20; /* Disabled Read Ahead */ 857c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 858c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 20; 859c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 860c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 861c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 862c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_write_protect(unsigned char *buf, int type) 863c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 864c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 865c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * I believe that the WP bit (bit 7) in the mode header is the same for 866c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * all device types.. 867c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 868c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (type) { 869c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_DISK: 870c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_TAPE: 871c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 872c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] |= 0x80; /* WP bit */ 873c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 874c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 875c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 876c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 877c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 878c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_dpofua(unsigned char *buf, int type) 879c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 880c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (type) { 881c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_DISK: 882c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] |= 0x10; /* DPOFUA bit */ 883c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 884c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 885c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 886c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 887c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 888c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 889c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 890c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_modesense(struct se_cmd *cmd, int ten) 891c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 8925951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 893a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover char *cdb = cmd->t_task_cdb; 89405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *rbuf; 895c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int type = dev->transport->get_device_type(dev); 896c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int offset = (ten) ? 8 : 4; 897c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int length = 0; 898c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned char buf[SE_MODE_PAGE_BUF]; 899c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 900c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memset(buf, 0, SE_MODE_PAGE_BUF); 901c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 902c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (cdb[2] & 0x3f) { 903c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x01: 904c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_rwrecovery(&buf[offset]); 905c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 906c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x08: 907c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_caching(dev, &buf[offset]); 908c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 909c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x0a: 910c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_control(dev, &buf[offset]); 911c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 912c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x3f: 913c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_rwrecovery(&buf[offset]); 914c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length += target_modesense_caching(dev, &buf[offset+length]); 915c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length += target_modesense_control(dev, &buf[offset+length]); 916c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 917c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 9186708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Got Unknown Mode Page: 0x%02x\n", 919c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger cdb[2] & 0x3f); 920c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_MODE_PAGE; 921c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 922c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset += length; 923c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 924c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ten) { 925c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset -= 2; 926c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (offset >> 8) & 0xff; 927c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = offset & 0xff; 928c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 929e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || 930c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve && 931c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) 932c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_write_protect(&buf[3], type); 933c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 934e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) && 935e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0)) 936c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_dpofua(&buf[3], type); 937c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 938c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((offset + 2) > cmd->data_length) 939c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = cmd->data_length; 940c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 941c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } else { 942c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset -= 1; 943c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = offset & 0xff; 944c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 945e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || 946c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve && 947c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) 948c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_write_protect(&buf[2], type); 949c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 950e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) && 951e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0)) 952c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_dpofua(&buf[2], type); 953c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 954c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((offset + 1) > cmd->data_length) 955c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = cmd->data_length; 956c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 95705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 95805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover rbuf = transport_kmap_first_data_page(cmd); 959c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memcpy(rbuf, buf, offset); 96005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 961c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 962c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 963c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 964c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 965c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 966c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_request_sense(struct se_cmd *cmd) 967c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 968a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = cmd->t_task_cdb; 96905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 970c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u8 ua_asc = 0, ua_ascq = 0; 97105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int err = 0; 972c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 973c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cdb[1] & 0x01) { 9746708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("REQUEST_SENSE description emulation not" 975c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " supported\n"); 976c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_INVALID_CDB_FIELD; 977c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 97805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 97905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 98005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 9816708bb27bb2703da238f21f516034263348af5beAndy Grover if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { 982c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 983c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CURRENT ERROR, UNIT ATTENTION 984c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 985c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = 0x70; 986c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; 987c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 988c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure request data length is enough for additional 989c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * sense data. 990c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 991c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length <= 18) { 992c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x00; 99305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover err = -EINVAL; 99405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto end; 995c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 996c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 997c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The Additional Sense Code (ASC) from the UNIT ATTENTION 998c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 999c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASC_KEY_OFFSET] = ua_asc; 1000c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASCQ_KEY_OFFSET] = ua_ascq; 1001c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x0A; 1002c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } else { 1003c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1004c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CURRENT ERROR, NO SENSE 1005c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1006c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = 0x70; 1007c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE; 1008c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1009c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure request data length is enough for additional 1010c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * sense data. 1011c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1012c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length <= 18) { 1013c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x00; 101405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover err = -EINVAL; 101505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto end; 1016c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1017c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1018c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NO ADDITIONAL SENSE INFORMATION 1019c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1020c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASC_KEY_OFFSET] = 0x00; 1021c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x0A; 1022c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1023c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 102405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Groverend: 102505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 102605d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 1027c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 1028c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1029c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1030c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 1031c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support. 1032c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note this is not used for TCM/pSCSI passthrough 1033c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1034c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 1035c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_unmap(struct se_task *task) 1036c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1037e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 10385951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 103905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf, *ptr = NULL; 1040a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = &cmd->t_task_cdb[0]; 1041c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger sector_t lba; 1042c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned int size = cmd->data_length, range; 104305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int ret = 0, offset; 1044c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned short dl, bd_dl; 1045c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1046c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* First UNMAP block descriptor starts at 8 byte offset */ 1047c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = 8; 1048c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger size -= 8; 1049c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dl = get_unaligned_be16(&cdb[0]); 1050c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger bd_dl = get_unaligned_be16(&cdb[2]); 105105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 105205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 105305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 1054c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ptr = &buf[offset]; 10556708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("UNMAP: Sub: %s Using dl: %hu bd_dl: %hu size: %hu" 1056c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " ptr: %p\n", dev->transport->name, dl, bd_dl, size, ptr); 1057c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1058c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger while (size) { 1059c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lba = get_unaligned_be64(&ptr[0]); 1060c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger range = get_unaligned_be32(&ptr[8]); 10616708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("UNMAP: Using lba: %llu and range: %u\n", 1062c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (unsigned long long)lba, range); 1063c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1064c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = dev->transport->do_discard(dev, lba, range); 1065c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) { 10666708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("blkdev_issue_discard() failed: %d\n", 1067c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret); 106805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto err; 1069c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1070c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1071c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ptr += 16; 1072c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger size -= 16; 1073c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1074c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1075c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger task->task_scsi_status = GOOD; 1076c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger transport_complete_task(task, 1); 107705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grovererr: 107805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 107905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 108005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover return ret; 1081c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1082c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1083c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 1084c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support. 1085c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note this is not used for TCM/pSCSI passthrough 1086c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1087c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 1088dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellingertarget_emulate_write_same(struct se_task *task, int write_same32) 1089c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1090e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 10915951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 1092a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover sector_t range; 1093a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover sector_t lba = cmd->t_task_lba; 1094dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger unsigned int num_blocks; 1095c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int ret; 1096dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger /* 1097dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger * Extract num_blocks from the WRITE_SAME_* CDB. Then use the explict 1098dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger * range when non zero is supplied, otherwise calculate the remaining 1099dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger * range based on ->get_blocks() - starting LBA. 1100dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger */ 1101dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger if (write_same32) 1102a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover num_blocks = get_unaligned_be32(&cmd->t_task_cdb[28]); 1103dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger else 1104a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover num_blocks = get_unaligned_be32(&cmd->t_task_cdb[10]); 1105c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1106dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger if (num_blocks != 0) 1107dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger range = num_blocks; 1108dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger else 1109dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger range = (dev->transport->get_blocks(dev) - lba); 1110c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 11116708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("WRITE_SAME UNMAP: LBA: %llu Range: %llu\n", 1112dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger (unsigned long long)lba, (unsigned long long)range); 1113c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1114c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = dev->transport->do_discard(dev, lba, range); 1115c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) { 11166708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("blkdev_issue_discard() failed for WRITE_SAME\n"); 1117e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return ret; 1118c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1119c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1120c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger task->task_scsi_status = GOOD; 1121c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger transport_complete_task(task, 1); 1122c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 1123c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1124c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1125c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerint 1126c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertransport_emulate_control_cdb(struct se_task *task) 1127c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1128e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 11295951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 1130c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned short service_action; 1131c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int ret = 0; 1132c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1133a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover switch (cmd->t_task_cdb[0]) { 1134c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case INQUIRY: 1135c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_inquiry(cmd); 1136c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1137c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case READ_CAPACITY: 1138c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_readcapacity(cmd); 1139c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1140c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case MODE_SENSE: 1141c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_modesense(cmd, 0); 1142c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1143c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case MODE_SENSE_10: 1144c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_modesense(cmd, 1); 1145c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1146c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SERVICE_ACTION_IN: 1147a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover switch (cmd->t_task_cdb[1] & 0x1f) { 1148c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SAI_READ_CAPACITY_16: 1149c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_readcapacity_16(cmd); 1150c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1151c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 11526708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unsupported SA: 0x%02x\n", 1153a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover cmd->t_task_cdb[1] & 0x1f); 1154c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1155c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1156c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1157c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case REQUEST_SENSE: 1158c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_request_sense(cmd); 1159c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1160c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case UNMAP: 1161c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_discard) { 11626708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("UNMAP emulation not supported for: %s\n", 1163c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dev->transport->name); 1164c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1165c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1166c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_unmap(task); 1167c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1168c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case WRITE_SAME_16: 1169c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_discard) { 11706708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("WRITE_SAME_16 emulation not supported" 1171c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " for: %s\n", dev->transport->name); 1172c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1173c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1174dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger ret = target_emulate_write_same(task, 0); 1175c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1176c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case VARIABLE_LENGTH_CMD: 1177c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger service_action = 1178a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover get_unaligned_be16(&cmd->t_task_cdb[8]); 1179c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (service_action) { 1180c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case WRITE_SAME_32: 1181c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_discard) { 11826708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("WRITE_SAME_32 SA emulation not" 1183c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " supported for: %s\n", 1184c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dev->transport->name); 1185c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1186c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1187dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger ret = target_emulate_write_same(task, 1); 1188c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1189c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 11906708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unsupported VARIABLE_LENGTH_CMD SA:" 1191c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " 0x%02x\n", service_action); 1192c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1193c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1194c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1195c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SYNCHRONIZE_CACHE: 1196c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x91: /* SYNCHRONIZE_CACHE_16: */ 1197c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_sync_cache) { 11986708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("SYNCHRONIZE_CACHE emulation not supported" 1199c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " for: %s\n", dev->transport->name); 1200c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1201c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1202c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dev->transport->do_sync_cache(task); 1203c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1204c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case ALLOW_MEDIUM_REMOVAL: 1205c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case ERASE: 1206c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case REZERO_UNIT: 1207c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SEEK_10: 1208c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SPACE: 1209c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case START_STOP: 1210c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TEST_UNIT_READY: 1211c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case VERIFY: 1212c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case WRITE_FILEMARKS: 1213c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1214c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 12156708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unsupported SCSI Opcode: 0x%02x for %s\n", 1216a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover cmd->t_task_cdb[0], dev->transport->name); 1217c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1218c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1219c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1220c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) 1221c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return ret; 1222c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger task->task_scsi_status = GOOD; 1223c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger transport_complete_task(task, 1); 1224c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1225c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_SENT_TO_TRANSPORT; 1226c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1227