target_core_cdb.c revision f15ea5780d08e4c96930c0d607d05e480ec588c8
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; 70052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger struct se_portal_group *tpg = lun->lun_sep->sep_tpg; 7105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 72c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 73c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 74c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure we at least have 6 bytes of INQUIRY response 75c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * payload going back for EVPD=0 76c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 77c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 6) { 786708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("SCSI Inquiry payload length: %u" 79c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for EVPD=0\n", cmd->data_length); 80e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return -EINVAL; 81c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 82c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 8305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 8405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 85052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger if (dev == tpg->tpg_virt_lun0.lun_se_dev) { 86052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger buf[0] = 0x3f; /* Not connected */ 87052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger } else { 88052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 89052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger if (buf[0] == TYPE_TAPE) 90052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger buf[1] = 0x80; 91052605c6caa3e1edf8eee8fe5fe6d53f5721f39aNicholas Bellinger } 92c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = dev->transport->get_device_rev(dev); 93c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 94c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 95c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Enable SCCS and TPGS fields for Emulated ALUA 96c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 97e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) 98c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_fill_alua_data(lun->lun_sep, buf); 99c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 100c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 8) { 101c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 1; /* Set additional length to 1 */ 10205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto out; 103c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 104c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 105c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x32; /* Sync=1 and CmdQue=1 */ 106c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 107c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 108c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Do not include vendor, product, reversion info in INQUIRY 109c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * response payload for cdbs with a small allocation length. 110c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 111c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 36) { 112c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 3; /* Set additional length to 3 */ 11305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto out; 114c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 115c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 116c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger snprintf((unsigned char *)&buf[8], 8, "LIO-ORG"); 117c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger snprintf((unsigned char *)&buf[16], 16, "%s", 118e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.model[0]); 119c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger snprintf((unsigned char *)&buf[32], 4, "%s", 120e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.revision[0]); 121c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 31; /* Set additional length to 31 */ 12205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 12305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Groverout: 12405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 125c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 126c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 127c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 128c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* unit serial number */ 129c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 130c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf) 131c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1325951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 133c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 len = 0; 134c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 135c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (dev->se_sub_dev->su_dev_flags & 136c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SDF_EMULATED_VPD_UNIT_SERIAL) { 137c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 unit_serial_len; 138c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 139c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len = 140e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover strlen(&dev->se_sub_dev->t10_wwn.unit_serial[0]); 141c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len++; /* For NULL Terminator */ 142c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 143c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + unit_serial_len) > cmd->data_length) { 144c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += unit_serial_len; 145c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = ((len >> 8) & 0xff); 146c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (len & 0xff); 147c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 148c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 149c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += sprintf((unsigned char *)&buf[4], "%s", 150e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.unit_serial[0]); 151c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len++; /* Extra Byte for NULL Terminator */ 152c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = len; 153c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 154c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 155c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 156c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 157c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 158c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Device identification VPD, for a complete list of 159c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * DESIGNATOR TYPEs see spc4r17 Table 459. 160c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 161c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 162c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf) 163c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1645951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 165e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_lun *lun = cmd->se_lun; 166c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct se_port *port = NULL; 167c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct se_portal_group *tpg = NULL; 168c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_lu_gp_member *lu_gp_mem; 169c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp *tg_pt_gp; 170c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; 171e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover unsigned char *prod = &dev->se_sub_dev->t10_wwn.model[0]; 172c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 prod_len; 173c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 unit_serial_len, off = 0; 174c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 len = 0, id_len; 175c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 176c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off = 4; 177c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 178c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 179c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NAA IEEE Registered Extended Assigned designator format, see 180c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * spc4r17 section 7.7.3.6.5 181c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 182c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * We depend upon a target_core_mod/ConfigFS provided 183c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * /sys/kernel/config/target/core/$HBA/$DEV/wwn/vpd_unit_serial 184c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * value in order to return the NAA id. 185c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 186c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!(dev->se_sub_dev->su_dev_flags & SDF_EMULATED_VPD_UNIT_SERIAL)) 187c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_t10_vend_desc; 188c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 189c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (off + 20 > cmd->data_length) 190c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_t10_vend_desc; 191c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 192c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* CODE SET == Binary */ 193c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x1; 194c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 195163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == addressed logical unit: 0)b */ 196c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x00; 197c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 198c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier/Designator type == NAA identifier */ 199163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko buf[off++] |= 0x3; 200c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; 201c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 202c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier/Designator length */ 203c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x10; 204c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 205c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 206c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Start NAA IEEE Registered Extended Identifier/Designator 207c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 208c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (0x6 << 4); 209c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 210c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 211c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Use OpenFabrics IEEE Company ID: 00 14 05 212c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 213c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x01; 214c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 0x40; 215c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = (0x5 << 4); 216c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 217c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 218c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Return ConfigFS Unit Serial Number information for 219c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * VENDOR_SPECIFIC_IDENTIFIER and 220c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * VENDOR_SPECIFIC_IDENTIFIER_EXTENTION 221c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 22211650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko buf[off++] |= hex_to_bin(dev->se_sub_dev->t10_wwn.unit_serial[0]); 22311650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko hex2bin(&buf[off], &dev->se_sub_dev->t10_wwn.unit_serial[1], 12); 22411650b859681e03fdbf26277fcfc5f1f62186703Andy Shevchenko 225c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len = 20; 226c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off = (len + 4); 227c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 228c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_t10_vend_desc: 229c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 230c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * T10 Vendor Identifier Page, see spc4r17 section 7.7.3.4 231c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 232c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len = 8; /* For Vendor field */ 233c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len = 4; /* For VPD Header */ 234c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len += 8; /* For Vendor field */ 235c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len += strlen(prod); 236c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger prod_len++; /* For : */ 237c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 238c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (dev->se_sub_dev->su_dev_flags & 239c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SDF_EMULATED_VPD_UNIT_SERIAL) { 240c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len = 241e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover strlen(&dev->se_sub_dev->t10_wwn.unit_serial[0]); 242c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unit_serial_len++; /* For NULL Terminator */ 243c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 244c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((len + (id_len + 4) + 245c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (prod_len + unit_serial_len)) > 246c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger cmd->data_length) { 247c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (prod_len + unit_serial_len); 248c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_port; 249c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 250c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len += sprintf((unsigned char *)&buf[off+12], 251c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger "%s:%s", prod, 252e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover &dev->se_sub_dev->t10_wwn.unit_serial[0]); 253c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 254c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x2; /* ASCII */ 255c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+1] = 0x1; /* T10 Vendor ID */ 256c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+2] = 0x0; 257c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memcpy((unsigned char *)&buf[off+4], "LIO-ORG", 8); 258c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Extra Byte for NULL Terminator */ 259c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger id_len++; 260c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Identifier Length */ 261c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off+3] = id_len; 262c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size for Designation descriptor */ 263c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (id_len + 4); 264c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += (id_len + 4); 265c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 266c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD 267c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 268c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_port: 269c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger port = lun->lun_sep; 270c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (port) { 271c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger struct t10_alua_lu_gp *lu_gp; 272c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u32 padding, scsi_name_len; 273c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 lu_gp_id = 0; 274c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 tg_pt_gp_id = 0; 275c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u16 tpgt; 276c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 277c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tpg = port->sep_tpg; 278c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 279c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Relative target port identifer, see spc4r17 280c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.7 281c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 282c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 283c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 284c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 285c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + 8) > cmd->data_length) { 286c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; 287c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_tpgi; 288c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 289c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 290e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 291c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 292c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 293163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 294c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 295c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Relative target port identifer */ 296c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x4; 297c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 298c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 299c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Skip over Obsolete field in RTPI payload 300c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * in Table 472 */ 301c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; 302c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((port->sep_rtpi >> 8) & 0xff); 303c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (port->sep_rtpi & 0xff); 304c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 305c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 306c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Target port group identifier, see spc4r17 307c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.8 308c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 309c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 310c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 311c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 312c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_tpgi: 313e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->t10_alua.alua_type != 314c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger SPC3_ALUA_EMULATED) 315c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 316c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 317c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + 8) > cmd->data_length) { 318c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; 319c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 320c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 321c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem; 322c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!tg_pt_gp_mem) 323c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 324c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 325c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 326c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; 3276708bb27bb2703da238f21f516034263348af5beAndy Grover if (!tg_pt_gp) { 328c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 329c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_lu_gp; 330c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 331c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id; 332c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); 333c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 334c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 335e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 336c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 337c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 338163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 339c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 340c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Target port group identifier */ 341c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x5; 342c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 343c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 344c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved Field */ 345c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((tg_pt_gp_id >> 8) & 0xff); 346c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (tg_pt_gp_id & 0xff); 347c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 348c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 349c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Logical Unit Group identifier, see spc4r17 350c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.8 351c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 352c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_lu_gp: 353c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + 8) > cmd->data_length) { 354c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; 355c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 356c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 357c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp_mem = dev->dev_alua_lu_gp_mem; 3586708bb27bb2703da238f21f516034263348af5beAndy Grover if (!lu_gp_mem) 359c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 360c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 361c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_lock(&lu_gp_mem->lu_gp_mem_lock); 362c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp = lu_gp_mem->lu_gp; 3636708bb27bb2703da238f21f516034263348af5beAndy Grover if (!lu_gp) { 364c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 365c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto check_scsi_name; 366c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 367c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lu_gp_id = lu_gp->lu_gp_id; 368c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger spin_unlock(&lu_gp_mem->lu_gp_mem_lock); 369c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 370c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x1; /* CODE SET == Binary */ 371c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == Logical Unit Group identifier */ 372c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x6; 373c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off++; /* Skip over Reserved */ 374c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = 4; /* DESIGNATOR LENGTH */ 375c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved Field */ 376c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = ((lu_gp_id >> 8) & 0xff); 377c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] = (lu_gp_id & 0xff); 378c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += 8; /* Header size + Designation descriptor */ 379c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 380c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * SCSI name string designator, see spc4r17 381c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.7.3.11 382c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 383c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Get the PROTOCOL IDENTIFIER as defined by spc4r17 384c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * section 7.5.1 Table 362 385c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 386c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingercheck_scsi_name: 387e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover scsi_name_len = strlen(tpg->se_tpg_tfo->tpg_get_wwn(tpg)); 388c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* UTF-8 ",t,0x<16-bit TPGT>" + NULL Terminator */ 389c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 10; 390c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Check for 4-byte padding */ 391c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger padding = ((-scsi_name_len) & 3); 392c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (padding != 0) 393c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += padding; 394c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size + Designation descriptor */ 395c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 4; 396c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 397c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (((len + 4) + scsi_name_len) > cmd->data_length) { 398c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += scsi_name_len; 399c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger goto set_len; 400c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 401c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 402e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4); 403c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x3; /* CODE SET == UTF-8 */ 404c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] = 0x80; /* Set PIV=1 */ 405163cd5fa9fcb7ccc73a9e39d5f601cfd41a23bfaAndy Shevchenko /* Set ASSOCIATION == target port: 01b */ 406c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off] |= 0x10; 407c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* DESIGNATOR TYPE == SCSI name string */ 408c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off++] |= 0x8; 409c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += 2; /* Skip over Reserved and length */ 410c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 411c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * SCSI name string identifer containing, $FABRIC_MOD 412c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * dependent information. For LIO-Target and iSCSI 413c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Target Port, this means "<iSCSI name>,t,0x<TPGT> in 414c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * UTF-8 encoding. 415c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 416e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover tpgt = tpg->se_tpg_tfo->tpg_get_tag(tpg); 417c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len = sprintf(&buf[off], "%s,t,0x%04x", 418e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover tpg->se_tpg_tfo->tpg_get_wwn(tpg), tpgt); 419c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += 1 /* Include NULL terminator */; 420c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 421c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The null-terminated, null-padded (see 4.4.2) SCSI 422c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NAME STRING field contains a UTF-8 format string. 423c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The number of bytes in the SCSI NAME STRING field 424c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * (i.e., the value in the DESIGNATOR LENGTH field) 425c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * shall be no larger than 256 and shall be a multiple 426c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * of four. 427c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 428c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (padding) 429c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger scsi_name_len += padding; 430c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 431c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[off-1] = scsi_name_len; 432c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger off += scsi_name_len; 433c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Header size + Designation descriptor */ 434c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger len += (scsi_name_len + 4); 435c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 436c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerset_len: 437c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = ((len >> 8) & 0xff); 438c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (len & 0xff); /* Page Length for VPD 0x83 */ 439c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 440c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 441c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 442c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Extended INQUIRY Data VPD Page */ 443c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 444c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) 445c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 446c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 60) 447c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 448c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 449c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = 0x3c; 450c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* Set HEADSUP, ORDSUP, SIMPSUP */ 451c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x07; 452c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 453c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* If WriteCache emulation is enabled, set V_SUP */ 4545951146dea1ac8ff2f177477c907084d63913cadAndy Grover if (cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) 455c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[6] = 0x01; 456c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 457c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 458c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 459c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Block Limits VPD page */ 460c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 461c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) 462c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 4635951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 464c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int have_tp = 0; 465c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 466c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 467c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Following sbc3r22 section 6.5.3 Block Limits VPD page, when 468c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * emulate_tpu=1 or emulate_tpws=1 we will be expect a 469c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * different page length for Thin Provisioning. 470c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 471e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 472c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger have_tp = 1; 473c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 474c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < (0x10 + 4)) { 4756708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("Received data_length: %u" 476c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for EVPD 0xb0\n", 477c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger cmd->data_length); 478e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return -EINVAL; 479c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 480c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 481c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (have_tp && cmd->data_length < (0x3c + 4)) { 4826708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("Received data_length: %u" 483c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for TPE=1 EVPD 0xb0\n", 484c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger cmd->data_length); 485c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger have_tp = 0; 486c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 487c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 488c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 489c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = have_tp ? 0x3c : 0x10; 490c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 4916708bb27bb2703da238f21f516034263348af5beAndy Grover /* Set WSNZ to 1 */ 4926708bb27bb2703da238f21f516034263348af5beAndy Grover buf[4] = 0x01; 4936708bb27bb2703da238f21f516034263348af5beAndy Grover 494c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 495c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL TRANSFER LENGTH GRANULARITY 496c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 497c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be16(1, &buf[6]); 498c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 499c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 500c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM TRANSFER LENGTH 501c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 502e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_sectors, &buf[8]); 503c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 504c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 505c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL TRANSFER LENGTH 506c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 507e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.optimal_sectors, &buf[12]); 508c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 509c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 510c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Exit now if we don't support TP or the initiator sent a too 511c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * short buffer. 512c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 513c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!have_tp || cmd->data_length < (0x3c + 4)) 514c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 515c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 516c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 517c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM UNMAP LBA COUNT 518c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 519e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count, &buf[20]); 520c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 521c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 522c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT 523c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 524e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count, 525c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger &buf[24]); 526c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 527c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 528c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set OPTIMAL UNMAP GRANULARITY 529c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 530e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity, &buf[28]); 531c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 532c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 533c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * UNMAP GRANULARITY ALIGNMENT 534c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 535e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment, 536c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger &buf[32]); 537e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment != 0) 538c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[32] |= 0x80; /* Set the UGAVALID bit */ 539c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 540c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 541c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 542c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 543e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier/* Block Device Characteristics VPD page */ 544e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreierstatic int 545e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreiertarget_emulate_evpd_b1(struct se_cmd *cmd, unsigned char *buf) 546e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier{ 547e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier struct se_device *dev = cmd->se_dev; 548e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 549e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[0] = dev->transport->get_device_type(dev); 550e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[3] = 0x3c; 551e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 552e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier if (cmd->data_length >= 5 && 553e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier dev->se_sub_dev->se_dev_attrib.is_nonrot) 554e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier buf[5] = 1; 555e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 556e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier return 0; 557e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier} 558e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier 559c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* Thin Provisioning VPD */ 560c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 561c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf) 562c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 5635951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 564c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 565c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 566c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From sbc3r22 section 6.5.4 Thin Provisioning VPD page: 567c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 568c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The PAGE LENGTH field is defined in SPC-4. If the DP bit is set to 569c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * zero, then the page length shall be set to 0004h. If the DP bit 570c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * is set to one, then the page length shall be set to the value 571c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * defined in table 162. 572c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 573c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 574c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 575c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 576c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set Hardcoded length mentioned above for DP=0 577c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 578c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be16(0x0004, &buf[2]); 579c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 580c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 581c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The THRESHOLD EXPONENT field indicates the threshold set size in 582c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * LBAs as a power of 2 (i.e., the threshold set size is equal to 583c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 2(threshold exponent)). 584c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 585c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note that this is currently set to 0x00 as mkp says it will be 586c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * changing again. We can enable this once it has settled in T10 587c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * and is actually used by Linux/SCSI ML code. 588c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 589c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = 0x00; 590c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 591c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 592c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPU bit set to one indicates that the device server supports 593c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * the UNMAP command (see 5.25). A TPU bit set to zero indicates 594c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * that the device server does not support the UNMAP command. 595c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 596e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu != 0) 597c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = 0x80; 598c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 599c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 600c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPWS bit set to one indicates that the device server supports 601c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * the use of the WRITE SAME (16) command (see 5.42) to unmap LBAs. 602c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A TPWS bit set to zero indicates that the device server does not 603c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * support the use of the WRITE SAME (16) command to unmap LBAs. 604c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 605e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpws != 0) 606c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] |= 0x40; 607c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 608c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 609c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 610c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 611c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 612b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreiertarget_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf); 613b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 614b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic struct { 615b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier uint8_t page; 616b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier int (*emulate)(struct se_cmd *, unsigned char *); 617b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier} evpd_handlers[] = { 618b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x00, .emulate = target_emulate_evpd_00 }, 619b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x80, .emulate = target_emulate_evpd_80 }, 620b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x83, .emulate = target_emulate_evpd_83 }, 621b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0x86, .emulate = target_emulate_evpd_86 }, 622b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0xb0, .emulate = target_emulate_evpd_b0 }, 623e22a7f075226c51f3f71b922e9eeb4f99fac1475Roland Dreier { .page = 0xb1, .emulate = target_emulate_evpd_b1 }, 624b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier { .page = 0xb2, .emulate = target_emulate_evpd_b2 }, 625b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier}; 626b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 627b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier/* supported vital product data pages */ 628b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic int 629b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreiertarget_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf) 630b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier{ 631b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier int p; 632b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 633b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cmd->data_length < 8) 634b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier return 0; 635b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier /* 636b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * Only report the INQUIRY EVPD=1 pages after a valid NAA 637b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * Registered Extended LUN WWN has been set via ConfigFS 638b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier * during device creation/restart. 639b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier */ 640b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cmd->se_dev->se_sub_dev->su_dev_flags & 641b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier SDF_EMULATED_VPD_UNIT_SERIAL) { 642b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[3] = ARRAY_SIZE(evpd_handlers); 643b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier for (p = 0; p < min_t(int, ARRAY_SIZE(evpd_handlers), 644b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier cmd->data_length - 4); ++p) 645b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[p + 4] = evpd_handlers[p].page; 646b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier } 647b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 648b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier return 0; 649b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier} 650b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier 651b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreierstatic int 652c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_inquiry(struct se_cmd *cmd) 653c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 6545951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 65505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 656a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = cmd->t_task_cdb; 65705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int p, ret; 658c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 659c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!(cdb[1] & 0x1)) 660c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return target_emulate_inquiry_std(cmd); 661c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 662c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 663c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure we at least have 4 bytes of INQUIRY response 664c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * payload for 0x00 going back for EVPD=1. Note that 0x80 665c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * and 0x83 will check for enough payload data length and 666c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * jump to set_len: label when there is not enough inquiry EVPD 667c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * payload length left for the next outgoing EVPD metadata 668c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 669c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length < 4) { 6706708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("SCSI Inquiry payload length: %u" 671c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " too small for EVPD=1\n", cmd->data_length); 672e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return -EINVAL; 673c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 67405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 67505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 67605d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 677c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = dev->transport->get_device_type(dev); 678c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 679b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p) 680b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier if (cdb[2] == evpd_handlers[p].page) { 681b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier buf[1] = cdb[2]; 68205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover ret = evpd_handlers[p].emulate(cmd, buf); 68305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 68405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover return ret; 685b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier } 686c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 68705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 6886708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]); 689b2eb705e00a9b9a9b3122192a7ab3e9058f0c48aRoland Dreier return -EINVAL; 690c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 691c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 692c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 693c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_readcapacity(struct se_cmd *cmd) 694c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 6955951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 69605d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 697904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger unsigned long long blocks_long = dev->transport->get_blocks(dev); 698904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger u32 blocks; 699904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger 700904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger if (blocks_long >= 0x00000000ffffffff) 701904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger blocks = 0xffffffff; 702904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger else 703904f0bc482201fa86e75c330d79dfd11be494cf8Nicholas Bellinger blocks = (u32)blocks_long; 704c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 70505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 70605d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 707c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (blocks >> 24) & 0xff; 708c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = (blocks >> 16) & 0xff; 709c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = (blocks >> 8) & 0xff; 710c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = blocks & 0xff; 711e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[4] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff; 712e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[5] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff; 713e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[6] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff; 714e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[7] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff; 715c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 716c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set max 32-bit blocks to signal SERVICE ACTION READ_CAPACITY_16 717c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 718e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 719c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger put_unaligned_be32(0xFFFFFFFF, &buf[0]); 720c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 72105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 72205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 723c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 724c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 725c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 726c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 727c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_readcapacity_16(struct se_cmd *cmd) 728c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 7295951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 73005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 731c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned long long blocks = dev->transport->get_blocks(dev); 732c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 73305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 73405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 735c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (blocks >> 56) & 0xff; 736c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = (blocks >> 48) & 0xff; 737c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[2] = (blocks >> 40) & 0xff; 738c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[3] = (blocks >> 32) & 0xff; 739c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[4] = (blocks >> 24) & 0xff; 740c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[5] = (blocks >> 16) & 0xff; 741c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[6] = (blocks >> 8) & 0xff; 742c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = blocks & 0xff; 743e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[8] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff; 744e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[9] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff; 745e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[10] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff; 746e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover buf[11] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff; 747c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 748c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Set Thin Provisioning Enable bit following sbc3r22 in section 749c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * READ CAPACITY (16) byte 14 if emulate_tpu or emulate_tpws is enabled. 750c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 751e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws) 752c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[14] = 0x80; 753c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 75405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 75505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 756c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 757c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 758c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 759c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 760c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_rwrecovery(unsigned char *p) 761c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 762c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x01; 763c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x0a; 764c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 765c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 12; 766c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 767c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 768c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 769c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_control(struct se_device *dev, unsigned char *p) 770c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 771c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x0a; 772c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x0a; 773c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[2] = 2; 774c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 7755de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * From spc4r23, 7.4.7 Control mode page 7765de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7775de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * The QUEUE ALGORITHM MODIFIER field (see table 368) specifies 7785de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * restrictions on the algorithm used for reordering commands 7795de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * having the SIMPLE task attribute (see SAM-4). 7805de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7815de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * Table 368 -- QUEUE ALGORITHM MODIFIER field 7825de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * Code Description 7835de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 0h Restricted reordering 7845de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 1h Unrestricted reordering allowed 7855de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 2h to 7h Reserved 7865de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 8h to Fh Vendor specific 7875de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7885de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * A value of zero in the QUEUE ALGORITHM MODIFIER field specifies that 7895de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * the device server shall order the processing sequence of commands 7905de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * having the SIMPLE task attribute such that data integrity is maintained 7915de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * for that I_T nexus (i.e., if the transmission of new SCSI transport protocol 7925de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * requests is halted at any time, the final value of all data observable 7935de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * on the medium shall be the same as if all the commands had been processed 7945de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * with the ORDERED task attribute). 7955de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * 7965de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * A value of one in the QUEUE ALGORITHM MODIFIER field specifies that the 7975de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * device server may reorder the processing sequence of commands having the 7985de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * SIMPLE task attribute in any manner. Any data integrity exposures related to 7995de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * command sequence order shall be explicitly handled by the application client 8005de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger * through the selection of appropriate ommands and task attributes. 8015de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger */ 8025de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger p[3] = (dev->se_sub_dev->se_dev_attrib.emulate_rest_reord == 1) ? 0x00 : 0x10; 8035de619a31d9cb051d1f818e661af4e54def82316Nicholas Bellinger /* 804c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From spc4r17, section 7.4.6 Control mode Page 805c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 806c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Unit Attention interlocks control (UN_INTLCK_CTRL) to code 00b 807c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 808c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 00b: The logical unit shall clear any unit attention condition 809c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 810c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall not establish a unit attention condition when a com- 811c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * mand is completed with BUSY, TASK SET FULL, or RESERVATION CONFLICT 812c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status. 813c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 814c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 10b: The logical unit shall not clear any unit attention condition 815c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 816c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall not establish a unit attention condition when 817c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * a command is completed with BUSY, TASK SET FULL, or RESERVATION 818c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CONFLICT status. 819c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 820c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 11b a The logical unit shall not clear any unit attention condition 821c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION 822c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status and shall establish a unit attention condition for the 823c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * initiator port associated with the I_T nexus on which the BUSY, 824c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * TASK SET FULL, or RESERVATION CONFLICT status is being returned. 825c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Depending on the status, the additional sense code shall be set to 826c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * PREVIOUS BUSY STATUS, PREVIOUS TASK SET FULL STATUS, or PREVIOUS 827c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * RESERVATION CONFLICT STATUS. Until it is cleared by a REQUEST SENSE 828c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * command, a unit attention condition shall be established only once 829c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * for a BUSY, TASK SET FULL, or RESERVATION CONFLICT status regardless 830c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * to the number of commands completed with one of those status codes. 831c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 832e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover p[4] = (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 : 833e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00; 834c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 835c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * From spc4r17, section 7.4.6 Control mode Page 836c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 837c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Task Aborted Status (TAS) bit set to zero. 838c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * 839c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * A task aborted status (TAS) bit set to zero specifies that aborted 840c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * tasks shall be terminated by the device server without any response 841c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * to the application client. A TAS bit set to one specifies that tasks 842c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * aborted by the actions of an I_T nexus other than the I_T nexus on 843c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * which the command was received shall be completed with TASK ABORTED 844c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * status (see SAM-4). 845c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 846e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover p[5] = (dev->se_sub_dev->se_dev_attrib.emulate_tas) ? 0x40 : 0x00; 847c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[8] = 0xff; 848c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[9] = 0xff; 849c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[11] = 30; 850c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 851c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 12; 852c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 853c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 854c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 855c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_caching(struct se_device *dev, unsigned char *p) 856c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 857c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[0] = 0x08; 858c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[1] = 0x12; 859e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) 860c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[2] = 0x04; /* Write Cache Enable */ 861c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger p[12] = 0x20; /* Disabled Read Ahead */ 862c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 863c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 20; 864c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 865c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 866c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 867c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_write_protect(unsigned char *buf, int type) 868c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 869c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 870c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * I believe that the WP bit (bit 7) in the mode header is the same for 871c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * all device types.. 872c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 873c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (type) { 874c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_DISK: 875c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_TAPE: 876c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 877c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] |= 0x80; /* WP bit */ 878c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 879c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 880c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 881c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 882c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic void 883c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_modesense_dpofua(unsigned char *buf, int type) 884c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 885c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (type) { 886c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TYPE_DISK: 887c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] |= 0x10; /* DPOFUA bit */ 888c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 889c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 890c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 891c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 892c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 893c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 894c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 895c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_modesense(struct se_cmd *cmd, int ten) 896c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 8975951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 898a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover char *cdb = cmd->t_task_cdb; 89905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *rbuf; 900c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int type = dev->transport->get_device_type(dev); 901c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int offset = (ten) ? 8 : 4; 902c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int length = 0; 903c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned char buf[SE_MODE_PAGE_BUF]; 904c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 905c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memset(buf, 0, SE_MODE_PAGE_BUF); 906c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 907c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (cdb[2] & 0x3f) { 908c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x01: 909c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_rwrecovery(&buf[offset]); 910c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 911c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x08: 912c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_caching(dev, &buf[offset]); 913c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 914c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x0a: 915c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_control(dev, &buf[offset]); 916c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 917c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x3f: 918c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length = target_modesense_rwrecovery(&buf[offset]); 919c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length += target_modesense_caching(dev, &buf[offset+length]); 920c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger length += target_modesense_control(dev, &buf[offset+length]); 921c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 922c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 923f15ea5780d08e4c96930c0d607d05e480ec588c8Roland Dreier pr_err("MODE SENSE: unimplemented page/subpage: 0x%02x/0x%02x\n", 924f15ea5780d08e4c96930c0d607d05e480ec588c8Roland Dreier cdb[2] & 0x3f, cdb[3]); 925c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_MODE_PAGE; 926c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 927c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset += length; 928c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 929c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ten) { 930c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset -= 2; 931c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = (offset >> 8) & 0xff; 932c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[1] = offset & 0xff; 933c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 934e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || 935c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve && 936c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) 937c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_write_protect(&buf[3], type); 938c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 939e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) && 940e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0)) 941c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_dpofua(&buf[3], type); 942c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 943c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((offset + 2) > cmd->data_length) 944c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = cmd->data_length; 945c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 946c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } else { 947c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset -= 1; 948c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = offset & 0xff; 949c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 950e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) || 951c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve && 952c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) 953c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_write_protect(&buf[2], type); 954c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 955e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) && 956e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0)) 957c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger target_modesense_dpofua(&buf[2], type); 958c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 959c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if ((offset + 1) > cmd->data_length) 960c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = cmd->data_length; 961c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 96205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 96305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover rbuf = transport_kmap_first_data_page(cmd); 964c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger memcpy(rbuf, buf, offset); 96505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 966c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 967c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 968c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 969c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 970c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 971c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_request_sense(struct se_cmd *cmd) 972c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 973a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = cmd->t_task_cdb; 97405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf; 975c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger u8 ua_asc = 0, ua_ascq = 0; 97605d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int err = 0; 977c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 978c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cdb[1] & 0x01) { 9796708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("REQUEST_SENSE description emulation not" 980c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " supported\n"); 981c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_INVALID_CDB_FIELD; 982c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 98305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 98405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 98505d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 9866708bb27bb2703da238f21f516034263348af5beAndy Grover if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) { 987c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 988c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CURRENT ERROR, UNIT ATTENTION 989c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 990c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = 0x70; 991c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION; 992c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 993c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure request data length is enough for additional 994c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * sense data. 995c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 996c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length <= 18) { 997c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x00; 99805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover err = -EINVAL; 99905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto end; 1000c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1001c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1002c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * The Additional Sense Code (ASC) from the UNIT ATTENTION 1003c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1004c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASC_KEY_OFFSET] = ua_asc; 1005c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASCQ_KEY_OFFSET] = ua_ascq; 1006c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x0A; 1007c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } else { 1008c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1009c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * CURRENT ERROR, NO SENSE 1010c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1011c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[0] = 0x70; 1012c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE; 1013c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1014c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Make sure request data length is enough for additional 1015c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * sense data. 1016c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1017c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (cmd->data_length <= 18) { 1018c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x00; 101905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover err = -EINVAL; 102005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto end; 1021c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1022c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* 1023c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * NO ADDITIONAL SENSE INFORMATION 1024c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1025c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[SPC_ASC_KEY_OFFSET] = 0x00; 1026c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger buf[7] = 0x0A; 1027c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1028c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 102905d1c7c0d0db4cc25548d9aadebb416888a82327Andy Groverend: 103005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 103105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 1032c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 1033c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1034c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1035c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 1036c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support. 1037c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note this is not used for TCM/pSCSI passthrough 1038c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1039c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 1040c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertarget_emulate_unmap(struct se_task *task) 1041c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1042e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 10435951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 104405d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover unsigned char *buf, *ptr = NULL; 1045a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover unsigned char *cdb = &cmd->t_task_cdb[0]; 1046c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger sector_t lba; 1047c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned int size = cmd->data_length, range; 104805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover int ret = 0, offset; 1049c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned short dl, bd_dl; 1050c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1051c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger /* First UNMAP block descriptor starts at 8 byte offset */ 1052c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger offset = 8; 1053c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger size -= 8; 1054c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dl = get_unaligned_be16(&cdb[0]); 1055c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger bd_dl = get_unaligned_be16(&cdb[2]); 105605d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 105705d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover buf = transport_kmap_first_data_page(cmd); 105805d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 1059c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ptr = &buf[offset]; 10606708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("UNMAP: Sub: %s Using dl: %hu bd_dl: %hu size: %hu" 1061c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " ptr: %p\n", dev->transport->name, dl, bd_dl, size, ptr); 1062c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1063c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger while (size) { 1064c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger lba = get_unaligned_be64(&ptr[0]); 1065c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger range = get_unaligned_be32(&ptr[8]); 10666708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("UNMAP: Using lba: %llu and range: %u\n", 1067c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger (unsigned long long)lba, range); 1068c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1069c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = dev->transport->do_discard(dev, lba, range); 1070c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) { 10716708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("blkdev_issue_discard() failed: %d\n", 1072c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret); 107305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover goto err; 1074c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1075c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1076c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ptr += 16; 1077c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger size -= 16; 1078c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1079c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 108005d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grovererr: 108105d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover transport_kunmap_first_data_page(cmd); 108205d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover 108305d1c7c0d0db4cc25548d9aadebb416888a82327Andy Grover return ret; 1084c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1085c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1086c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger/* 1087c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support. 1088c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger * Note this is not used for TCM/pSCSI passthrough 1089c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger */ 1090c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerstatic int 1091706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellingertarget_emulate_write_same(struct se_task *task, u32 num_blocks) 1092c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1093e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 10945951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 1095a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover sector_t range; 1096a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover sector_t lba = cmd->t_task_lba; 1097c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int ret; 1098dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger /* 1099706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger * Use the explicit range when non zero is supplied, otherwise calculate 1100706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger * the remaining range based on ->get_blocks() - starting LBA. 1101dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger */ 1102dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger if (num_blocks != 0) 1103dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger range = num_blocks; 1104dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger else 1105dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger range = (dev->transport->get_blocks(dev) - lba); 1106c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 11076708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("WRITE_SAME UNMAP: LBA: %llu Range: %llu\n", 1108dd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479Nicholas Bellinger (unsigned long long)lba, (unsigned long long)range); 1109c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1110c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = dev->transport->do_discard(dev, lba, range); 1111c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) { 11126708bb27bb2703da238f21f516034263348af5beAndy Grover pr_debug("blkdev_issue_discard() failed for WRITE_SAME\n"); 1113e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover return ret; 1114c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1115c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1116c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return 0; 1117c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1118c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1119c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingerint 1120c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellingertransport_emulate_control_cdb(struct se_task *task) 1121c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger{ 1122e3d6f909ed803d92a5ac9b4a2c087e0eae9b90d0Andy Grover struct se_cmd *cmd = task->task_se_cmd; 11235951146dea1ac8ff2f177477c907084d63913cadAndy Grover struct se_device *dev = cmd->se_dev; 1124c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger unsigned short service_action; 1125c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger int ret = 0; 1126c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1127a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover switch (cmd->t_task_cdb[0]) { 1128c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case INQUIRY: 1129c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_inquiry(cmd); 1130c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1131c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case READ_CAPACITY: 1132c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_readcapacity(cmd); 1133c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1134c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case MODE_SENSE: 1135c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_modesense(cmd, 0); 1136c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1137c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case MODE_SENSE_10: 1138c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_modesense(cmd, 1); 1139c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1140c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SERVICE_ACTION_IN: 1141a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover switch (cmd->t_task_cdb[1] & 0x1f) { 1142c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SAI_READ_CAPACITY_16: 1143c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_readcapacity_16(cmd); 1144c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1145c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 11466708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unsupported SA: 0x%02x\n", 1147a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover cmd->t_task_cdb[1] & 0x1f); 1148c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1149c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1150c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1151c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case REQUEST_SENSE: 1152c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_request_sense(cmd); 1153c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1154c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case UNMAP: 1155c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_discard) { 11566708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("UNMAP emulation not supported for: %s\n", 1157c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dev->transport->name); 1158c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1159c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1160c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger ret = target_emulate_unmap(task); 1161c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1162706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger case WRITE_SAME: 1163706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger if (!dev->transport->do_discard) { 1164706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger pr_err("WRITE_SAME emulation not supported" 1165706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger " for: %s\n", dev->transport->name); 1166706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1167706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger } 1168706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger ret = target_emulate_write_same(task, 1169706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger get_unaligned_be16(&cmd->t_task_cdb[7])); 1170706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger break; 1171c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case WRITE_SAME_16: 1172c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_discard) { 11736708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("WRITE_SAME_16 emulation not supported" 1174c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " for: %s\n", dev->transport->name); 1175c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1176c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1177706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger ret = target_emulate_write_same(task, 1178706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger get_unaligned_be32(&cmd->t_task_cdb[10])); 1179c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1180c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case VARIABLE_LENGTH_CMD: 1181c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger service_action = 1182a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover get_unaligned_be16(&cmd->t_task_cdb[8]); 1183c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger switch (service_action) { 1184c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case WRITE_SAME_32: 1185c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_discard) { 11866708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("WRITE_SAME_32 SA emulation not" 1187c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " supported for: %s\n", 1188c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dev->transport->name); 1189c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1190c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1191706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger ret = target_emulate_write_same(task, 1192706d5860969b3b24d65d9a57bd3bb5e4a1419c08Nicholas Bellinger get_unaligned_be32(&cmd->t_task_cdb[28])); 1193c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1194c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 11956708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unsupported VARIABLE_LENGTH_CMD SA:" 1196c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " 0x%02x\n", service_action); 1197c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1198c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1199c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1200c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SYNCHRONIZE_CACHE: 1201c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case 0x91: /* SYNCHRONIZE_CACHE_16: */ 1202c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (!dev->transport->do_sync_cache) { 12036708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("SYNCHRONIZE_CACHE emulation not supported" 1204c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger " for: %s\n", dev->transport->name); 1205c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1206c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1207c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger dev->transport->do_sync_cache(task); 1208c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1209c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case ALLOW_MEDIUM_REMOVAL: 1210c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case ERASE: 1211c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case REZERO_UNIT: 1212c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SEEK_10: 1213c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case SPACE: 1214c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case START_STOP: 1215c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case TEST_UNIT_READY: 1216c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case VERIFY: 1217c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger case WRITE_FILEMARKS: 1218c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger break; 1219c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger default: 12206708bb27bb2703da238f21f516034263348af5beAndy Grover pr_err("Unsupported SCSI Opcode: 0x%02x for %s\n", 1221a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6Andy Grover cmd->t_task_cdb[0], dev->transport->name); 1222c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_UNKNOWN_SAM_OPCODE; 1223c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger } 1224c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1225c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger if (ret < 0) 1226c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return ret; 122772f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger /* 122872f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger * Handle the successful completion here unless a caller 122972f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger * has explictly requested an asychronous completion. 123072f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger */ 123172f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger if (!(cmd->se_cmd_flags & SCF_EMULATE_CDB_ASYNC)) { 123272f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger task->task_scsi_status = GOOD; 123372f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger transport_complete_task(task, 1); 123472f4ba1e32a1e5da31dcf14ea4b8985ae88a8bdbNicholas Bellinger } 1235c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger 1236c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger return PYX_TRANSPORT_SENT_TO_TRANSPORT; 1237c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5Nicholas Bellinger} 1238