1a6d42e7dSPeter Dunlap /* 2a6d42e7dSPeter Dunlap * CDDL HEADER START 3a6d42e7dSPeter Dunlap * 4a6d42e7dSPeter Dunlap * The contents of this file are subject to the terms of the 5a6d42e7dSPeter Dunlap * Common Development and Distribution License (the "License"). 6a6d42e7dSPeter Dunlap * You may not use this file except in compliance with the License. 7a6d42e7dSPeter Dunlap * 8a6d42e7dSPeter Dunlap * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9a6d42e7dSPeter Dunlap * or http://www.opensolaris.org/os/licensing. 10a6d42e7dSPeter Dunlap * See the License for the specific language governing permissions 11a6d42e7dSPeter Dunlap * and limitations under the License. 12a6d42e7dSPeter Dunlap * 13a6d42e7dSPeter Dunlap * When distributing Covered Code, include this CDDL HEADER in each 14a6d42e7dSPeter Dunlap * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15a6d42e7dSPeter Dunlap * If applicable, add the following below this CDDL HEADER, with the 16a6d42e7dSPeter Dunlap * fields enclosed by brackets "[]" replaced with your own identifying 17a6d42e7dSPeter Dunlap * information: Portions Copyright [yyyy] [name of copyright owner] 18a6d42e7dSPeter Dunlap * 19a6d42e7dSPeter Dunlap * CDDL HEADER END 20a6d42e7dSPeter Dunlap */ 21a6d42e7dSPeter Dunlap /* 22*63528ae4SJames Moore * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23a6d42e7dSPeter Dunlap * Use is subject to license terms. 24a6d42e7dSPeter Dunlap */ 25a6d42e7dSPeter Dunlap 26a6d42e7dSPeter Dunlap #include <sys/cpuvar.h> 27a6d42e7dSPeter Dunlap #include <sys/types.h> 28a6d42e7dSPeter Dunlap #include <sys/conf.h> 29a6d42e7dSPeter Dunlap #include <sys/stat.h> 30a6d42e7dSPeter Dunlap #include <sys/file.h> 31a6d42e7dSPeter Dunlap #include <sys/ddi.h> 32a6d42e7dSPeter Dunlap #include <sys/sunddi.h> 33a6d42e7dSPeter Dunlap #include <sys/modctl.h> 34a6d42e7dSPeter Dunlap #include <sys/sysmacros.h> 35a6d42e7dSPeter Dunlap #include <sys/socket.h> 36a6d42e7dSPeter Dunlap #include <sys/strsubr.h> 37a6d42e7dSPeter Dunlap #include <sys/nvpair.h> 38a6d42e7dSPeter Dunlap 39a6d42e7dSPeter Dunlap #include <sys/stmf.h> 40a6d42e7dSPeter Dunlap #include <sys/stmf_ioctl.h> 41a6d42e7dSPeter Dunlap #include <sys/portif.h> 42a6d42e7dSPeter Dunlap #include <sys/idm/idm.h> 43a6d42e7dSPeter Dunlap #include <sys/idm/idm_conn_sm.h> 44a6d42e7dSPeter Dunlap #include <iscsit_isns.h> 45a6d42e7dSPeter Dunlap #include <iscsit.h> 46a6d42e7dSPeter Dunlap 47a6d42e7dSPeter Dunlap #define ISCSIT_VERSION BUILD_DATE "-1.18dev" 48a6d42e7dSPeter Dunlap #define ISCSIT_NAME_VERSION "COMSTAR ISCSIT v" ISCSIT_VERSION 49a6d42e7dSPeter Dunlap 50a6d42e7dSPeter Dunlap /* 51a6d42e7dSPeter Dunlap * DDI entry points. 52a6d42e7dSPeter Dunlap */ 53a6d42e7dSPeter Dunlap static int iscsit_drv_attach(dev_info_t *, ddi_attach_cmd_t); 54a6d42e7dSPeter Dunlap static int iscsit_drv_detach(dev_info_t *, ddi_detach_cmd_t); 55a6d42e7dSPeter Dunlap static int iscsit_drv_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 56a6d42e7dSPeter Dunlap static int iscsit_drv_open(dev_t *, int, int, cred_t *); 57a6d42e7dSPeter Dunlap static int iscsit_drv_close(dev_t, int, int, cred_t *); 58a6d42e7dSPeter Dunlap static boolean_t iscsit_drv_busy(void); 59a6d42e7dSPeter Dunlap static int iscsit_drv_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 60a6d42e7dSPeter Dunlap static boolean_t iscsit_cmdsn_in_window(iscsit_conn_t *ict, uint32_t cmdsn); 61a6d42e7dSPeter Dunlap static void iscsit_send_direct_scsi_resp(iscsit_conn_t *ict, idm_pdu_t *rx_pdu, 62a6d42e7dSPeter Dunlap uint8_t response, uint8_t cmd_status); 63a6d42e7dSPeter Dunlap static void iscsit_send_task_mgmt_resp(idm_pdu_t *tm_resp_pdu, 64a6d42e7dSPeter Dunlap uint8_t tm_status); 65a6d42e7dSPeter Dunlap 66a6d42e7dSPeter Dunlap extern struct mod_ops mod_miscops; 67a6d42e7dSPeter Dunlap 68a6d42e7dSPeter Dunlap 69a6d42e7dSPeter Dunlap static struct cb_ops iscsit_cb_ops = { 70a6d42e7dSPeter Dunlap iscsit_drv_open, /* cb_open */ 71a6d42e7dSPeter Dunlap iscsit_drv_close, /* cb_close */ 72a6d42e7dSPeter Dunlap nodev, /* cb_strategy */ 73a6d42e7dSPeter Dunlap nodev, /* cb_print */ 74a6d42e7dSPeter Dunlap nodev, /* cb_dump */ 75a6d42e7dSPeter Dunlap nodev, /* cb_read */ 76a6d42e7dSPeter Dunlap nodev, /* cb_write */ 77a6d42e7dSPeter Dunlap iscsit_drv_ioctl, /* cb_ioctl */ 78a6d42e7dSPeter Dunlap nodev, /* cb_devmap */ 79a6d42e7dSPeter Dunlap nodev, /* cb_mmap */ 80a6d42e7dSPeter Dunlap nodev, /* cb_segmap */ 81a6d42e7dSPeter Dunlap nochpoll, /* cb_chpoll */ 82a6d42e7dSPeter Dunlap ddi_prop_op, /* cb_prop_op */ 83a6d42e7dSPeter Dunlap NULL, /* cb_streamtab */ 84a6d42e7dSPeter Dunlap D_MP, /* cb_flag */ 85a6d42e7dSPeter Dunlap CB_REV, /* cb_rev */ 86a6d42e7dSPeter Dunlap nodev, /* cb_aread */ 87a6d42e7dSPeter Dunlap nodev, /* cb_awrite */ 88a6d42e7dSPeter Dunlap }; 89a6d42e7dSPeter Dunlap 90a6d42e7dSPeter Dunlap static struct dev_ops iscsit_dev_ops = { 91a6d42e7dSPeter Dunlap DEVO_REV, /* devo_rev */ 92a6d42e7dSPeter Dunlap 0, /* devo_refcnt */ 93a6d42e7dSPeter Dunlap iscsit_drv_getinfo, /* devo_getinfo */ 94a6d42e7dSPeter Dunlap nulldev, /* devo_identify */ 95a6d42e7dSPeter Dunlap nulldev, /* devo_probe */ 96a6d42e7dSPeter Dunlap iscsit_drv_attach, /* devo_attach */ 97a6d42e7dSPeter Dunlap iscsit_drv_detach, /* devo_detach */ 98a6d42e7dSPeter Dunlap nodev, /* devo_reset */ 99a6d42e7dSPeter Dunlap &iscsit_cb_ops, /* devo_cb_ops */ 100a6d42e7dSPeter Dunlap NULL, /* devo_bus_ops */ 101a6d42e7dSPeter Dunlap NULL, /* devo_power */ 102*63528ae4SJames Moore ddi_quiesce_not_needed, /* quiesce */ 103a6d42e7dSPeter Dunlap }; 104a6d42e7dSPeter Dunlap 105a6d42e7dSPeter Dunlap static struct modldrv modldrv = { 106a6d42e7dSPeter Dunlap &mod_driverops, 107a6d42e7dSPeter Dunlap "iSCSI Target", 108a6d42e7dSPeter Dunlap &iscsit_dev_ops, 109a6d42e7dSPeter Dunlap }; 110a6d42e7dSPeter Dunlap 111a6d42e7dSPeter Dunlap static struct modlinkage modlinkage = { 112a6d42e7dSPeter Dunlap MODREV_1, 113a6d42e7dSPeter Dunlap &modldrv, 114a6d42e7dSPeter Dunlap NULL, 115a6d42e7dSPeter Dunlap }; 116a6d42e7dSPeter Dunlap 117a6d42e7dSPeter Dunlap 118a6d42e7dSPeter Dunlap iscsit_global_t iscsit_global; 119a6d42e7dSPeter Dunlap 120a6d42e7dSPeter Dunlap kmem_cache_t *iscsit_status_pdu_cache; 121a6d42e7dSPeter Dunlap 122a6d42e7dSPeter Dunlap boolean_t iscsit_sm_logging = B_FALSE; 123a6d42e7dSPeter Dunlap 124a6d42e7dSPeter Dunlap static idm_status_t iscsit_init(dev_info_t *dip); 125a6d42e7dSPeter Dunlap static idm_status_t iscsit_enable_svc(iscsit_hostinfo_t *hostinfo); 126a6d42e7dSPeter Dunlap static void iscsit_disable_svc(void); 127a6d42e7dSPeter Dunlap 128a6d42e7dSPeter Dunlap static void 129a6d42e7dSPeter Dunlap iscsit_op_scsi_task_mgmt(iscsit_conn_t *ict, idm_pdu_t *rx_pdu); 130a6d42e7dSPeter Dunlap 131a6d42e7dSPeter Dunlap static void 132a6d42e7dSPeter Dunlap iscsit_pdu_op_noop(iscsit_conn_t *ict, idm_pdu_t *rx_pdu); 133a6d42e7dSPeter Dunlap 134a6d42e7dSPeter Dunlap static void 135a6d42e7dSPeter Dunlap iscsit_pdu_op_login_cmd(iscsit_conn_t *ict, idm_pdu_t *rx_pdu); 136a6d42e7dSPeter Dunlap 137a6d42e7dSPeter Dunlap void 138a6d42e7dSPeter Dunlap iscsit_pdu_op_text_cmd(iscsit_conn_t *ict, idm_pdu_t *rx_pdu); 139a6d42e7dSPeter Dunlap 140a6d42e7dSPeter Dunlap static void 141a6d42e7dSPeter Dunlap iscsit_pdu_op_logout_cmd(iscsit_conn_t *ict, idm_pdu_t *rx_pdu); 142a6d42e7dSPeter Dunlap 143a6d42e7dSPeter Dunlap int iscsit_cmd_window(); 144a6d42e7dSPeter Dunlap 145a6d42e7dSPeter Dunlap void 146a6d42e7dSPeter Dunlap iscsit_set_cmdsn(iscsit_conn_t *ict, idm_pdu_t *rx_pdu); 147a6d42e7dSPeter Dunlap 148a6d42e7dSPeter Dunlap static void 149a6d42e7dSPeter Dunlap iscsit_calc_rspsn(iscsit_conn_t *ict, idm_pdu_t *resp); 150a6d42e7dSPeter Dunlap 151a6d42e7dSPeter Dunlap static void 152a6d42e7dSPeter Dunlap iscsit_deferred_dispatch(idm_pdu_t *rx_pdu); 153a6d42e7dSPeter Dunlap 154a6d42e7dSPeter Dunlap static void 155a6d42e7dSPeter Dunlap iscsit_deferred(void *rx_pdu_void); 156a6d42e7dSPeter Dunlap 157a6d42e7dSPeter Dunlap static idm_status_t 158a6d42e7dSPeter Dunlap iscsit_conn_accept(idm_conn_t *ic); 159a6d42e7dSPeter Dunlap 160a6d42e7dSPeter Dunlap static idm_status_t 161a6d42e7dSPeter Dunlap iscsit_ffp_enabled(idm_conn_t *ic); 162a6d42e7dSPeter Dunlap 163a6d42e7dSPeter Dunlap static idm_status_t 164a6d42e7dSPeter Dunlap iscsit_ffp_disabled(idm_conn_t *ic, idm_ffp_disable_t disable_class); 165a6d42e7dSPeter Dunlap 166a6d42e7dSPeter Dunlap static idm_status_t 167a6d42e7dSPeter Dunlap iscsit_conn_lost(idm_conn_t *ic); 168a6d42e7dSPeter Dunlap 169a6d42e7dSPeter Dunlap static idm_status_t 170a6d42e7dSPeter Dunlap iscsit_conn_destroy(idm_conn_t *ic); 171a6d42e7dSPeter Dunlap 172a6d42e7dSPeter Dunlap static stmf_data_buf_t * 173a6d42e7dSPeter Dunlap iscsit_dbuf_alloc(scsi_task_t *task, uint32_t size, uint32_t *pminsize, 174a6d42e7dSPeter Dunlap uint32_t flags); 175a6d42e7dSPeter Dunlap 176a6d42e7dSPeter Dunlap static void 177a6d42e7dSPeter Dunlap iscsit_dbuf_free(stmf_dbuf_store_t *ds, stmf_data_buf_t *dbuf); 178a6d42e7dSPeter Dunlap 179a6d42e7dSPeter Dunlap static void 180a6d42e7dSPeter Dunlap iscsit_buf_xfer_cb(idm_buf_t *idb, idm_status_t status); 181a6d42e7dSPeter Dunlap 182a6d42e7dSPeter Dunlap static void 183a6d42e7dSPeter Dunlap iscsit_send_good_status_done(idm_pdu_t *pdu, idm_status_t status); 184a6d42e7dSPeter Dunlap 185a6d42e7dSPeter Dunlap static void 186a6d42e7dSPeter Dunlap iscsit_send_status_done(idm_pdu_t *pdu, idm_status_t status); 187a6d42e7dSPeter Dunlap 188a6d42e7dSPeter Dunlap static stmf_status_t 189a6d42e7dSPeter Dunlap iscsit_idm_to_stmf(idm_status_t idmrc); 190a6d42e7dSPeter Dunlap 191a6d42e7dSPeter Dunlap static iscsit_task_t * 192a6d42e7dSPeter Dunlap iscsit_task_alloc(iscsit_conn_t *ict); 193a6d42e7dSPeter Dunlap 194a6d42e7dSPeter Dunlap static void 195a6d42e7dSPeter Dunlap iscsit_task_free(iscsit_task_t *itask); 196a6d42e7dSPeter Dunlap 197a6d42e7dSPeter Dunlap static iscsit_task_t * 198a6d42e7dSPeter Dunlap iscsit_tm_task_alloc(iscsit_conn_t *ict); 199a6d42e7dSPeter Dunlap 200a6d42e7dSPeter Dunlap static void 201a6d42e7dSPeter Dunlap iscsit_tm_task_free(iscsit_task_t *itask); 202a6d42e7dSPeter Dunlap 203a6d42e7dSPeter Dunlap static int 204a6d42e7dSPeter Dunlap iscsit_status_pdu_constructor(void *pdu_void, void *arg, int flags); 205a6d42e7dSPeter Dunlap 206a6d42e7dSPeter Dunlap static void 207a6d42e7dSPeter Dunlap iscsit_pp_cb(struct stmf_port_provider *pp, int cmd, void *arg, uint32_t flags); 208a6d42e7dSPeter Dunlap 209a6d42e7dSPeter Dunlap static it_cfg_status_t 210a6d42e7dSPeter Dunlap iscsit_config_merge(it_config_t *cfg); 211a6d42e7dSPeter Dunlap 212a6d42e7dSPeter Dunlap static idm_status_t 213a6d42e7dSPeter Dunlap iscsit_login_fail(idm_conn_t *ic); 214a6d42e7dSPeter Dunlap 215a6d42e7dSPeter Dunlap int 216a6d42e7dSPeter Dunlap _init(void) 217a6d42e7dSPeter Dunlap { 218a6d42e7dSPeter Dunlap int rc; 219a6d42e7dSPeter Dunlap 220a6d42e7dSPeter Dunlap rw_init(&iscsit_global.global_rwlock, NULL, RW_DRIVER, NULL); 221a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DETACHED; 222a6d42e7dSPeter Dunlap 223a6d42e7dSPeter Dunlap if ((rc = mod_install(&modlinkage)) != 0) { 224a6d42e7dSPeter Dunlap rw_destroy(&iscsit_global.global_rwlock); 225a6d42e7dSPeter Dunlap return (rc); 226a6d42e7dSPeter Dunlap } 227a6d42e7dSPeter Dunlap 228a6d42e7dSPeter Dunlap return (rc); 229a6d42e7dSPeter Dunlap } 230a6d42e7dSPeter Dunlap 231a6d42e7dSPeter Dunlap int 232a6d42e7dSPeter Dunlap _info(struct modinfo *modinfop) 233a6d42e7dSPeter Dunlap { 234a6d42e7dSPeter Dunlap return (mod_info(&modlinkage, modinfop)); 235a6d42e7dSPeter Dunlap } 236a6d42e7dSPeter Dunlap 237a6d42e7dSPeter Dunlap int 238a6d42e7dSPeter Dunlap _fini(void) 239a6d42e7dSPeter Dunlap { 240a6d42e7dSPeter Dunlap int rc; 241a6d42e7dSPeter Dunlap 242a6d42e7dSPeter Dunlap rc = mod_remove(&modlinkage); 243a6d42e7dSPeter Dunlap 244a6d42e7dSPeter Dunlap if (rc == 0) { 245a6d42e7dSPeter Dunlap rw_destroy(&iscsit_global.global_rwlock); 246a6d42e7dSPeter Dunlap } 247a6d42e7dSPeter Dunlap 248a6d42e7dSPeter Dunlap return (rc); 249a6d42e7dSPeter Dunlap } 250a6d42e7dSPeter Dunlap 251a6d42e7dSPeter Dunlap /* 252a6d42e7dSPeter Dunlap * DDI entry points. 253a6d42e7dSPeter Dunlap */ 254a6d42e7dSPeter Dunlap 255a6d42e7dSPeter Dunlap /* ARGSUSED */ 256a6d42e7dSPeter Dunlap static int 257a6d42e7dSPeter Dunlap iscsit_drv_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, 258a6d42e7dSPeter Dunlap void **result) 259a6d42e7dSPeter Dunlap { 260a6d42e7dSPeter Dunlap ulong_t instance = getminor((dev_t)arg); 261a6d42e7dSPeter Dunlap 262a6d42e7dSPeter Dunlap switch (cmd) { 263a6d42e7dSPeter Dunlap case DDI_INFO_DEVT2DEVINFO: 264a6d42e7dSPeter Dunlap *result = iscsit_global.global_dip; 265a6d42e7dSPeter Dunlap return (DDI_SUCCESS); 266a6d42e7dSPeter Dunlap 267a6d42e7dSPeter Dunlap case DDI_INFO_DEVT2INSTANCE: 268a6d42e7dSPeter Dunlap *result = (void *)instance; 269a6d42e7dSPeter Dunlap return (DDI_SUCCESS); 270a6d42e7dSPeter Dunlap 271a6d42e7dSPeter Dunlap default: 272a6d42e7dSPeter Dunlap break; 273a6d42e7dSPeter Dunlap } 274a6d42e7dSPeter Dunlap 275a6d42e7dSPeter Dunlap return (DDI_FAILURE); 276a6d42e7dSPeter Dunlap } 277a6d42e7dSPeter Dunlap 278a6d42e7dSPeter Dunlap static int 279a6d42e7dSPeter Dunlap iscsit_drv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 280a6d42e7dSPeter Dunlap { 281a6d42e7dSPeter Dunlap if (cmd != DDI_ATTACH) { 282a6d42e7dSPeter Dunlap return (DDI_FAILURE); 283a6d42e7dSPeter Dunlap } 284a6d42e7dSPeter Dunlap 285a6d42e7dSPeter Dunlap if (ddi_get_instance(dip) != 0) { 286a6d42e7dSPeter Dunlap /* we only allow instance 0 to attach */ 287a6d42e7dSPeter Dunlap return (DDI_FAILURE); 288a6d42e7dSPeter Dunlap } 289a6d42e7dSPeter Dunlap 290a6d42e7dSPeter Dunlap /* create the minor node */ 291a6d42e7dSPeter Dunlap if (ddi_create_minor_node(dip, ISCSIT_MODNAME, S_IFCHR, 0, 292a6d42e7dSPeter Dunlap DDI_PSEUDO, 0) != DDI_SUCCESS) { 293a6d42e7dSPeter Dunlap cmn_err(CE_WARN, "iscsit_drv_attach: " 294a6d42e7dSPeter Dunlap "failed creating minor node"); 295a6d42e7dSPeter Dunlap return (DDI_FAILURE); 296a6d42e7dSPeter Dunlap } 297a6d42e7dSPeter Dunlap 298a6d42e7dSPeter Dunlap if (iscsit_init(dip) != IDM_STATUS_SUCCESS) { 299a6d42e7dSPeter Dunlap cmn_err(CE_WARN, "iscsit_drv_attach: " 300a6d42e7dSPeter Dunlap "failed to initialize"); 301a6d42e7dSPeter Dunlap ddi_remove_minor_node(dip, NULL); 302a6d42e7dSPeter Dunlap return (DDI_FAILURE); 303a6d42e7dSPeter Dunlap } 304a6d42e7dSPeter Dunlap 305a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DISABLED; 306a6d42e7dSPeter Dunlap iscsit_global.global_dip = dip; 307a6d42e7dSPeter Dunlap 308a6d42e7dSPeter Dunlap return (DDI_SUCCESS); 309a6d42e7dSPeter Dunlap } 310a6d42e7dSPeter Dunlap 311a6d42e7dSPeter Dunlap /*ARGSUSED*/ 312a6d42e7dSPeter Dunlap static int 313a6d42e7dSPeter Dunlap iscsit_drv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 314a6d42e7dSPeter Dunlap { 315a6d42e7dSPeter Dunlap if (cmd != DDI_DETACH) 316a6d42e7dSPeter Dunlap return (DDI_FAILURE); 317a6d42e7dSPeter Dunlap 318a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_LOCK(RW_WRITER); 319a6d42e7dSPeter Dunlap if (iscsit_drv_busy()) { 320a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 321a6d42e7dSPeter Dunlap return (EBUSY); 322a6d42e7dSPeter Dunlap } 323a6d42e7dSPeter Dunlap 324a6d42e7dSPeter Dunlap iscsit_global.global_dip = NULL; 325a6d42e7dSPeter Dunlap ddi_remove_minor_node(dip, NULL); 326a6d42e7dSPeter Dunlap 327a6d42e7dSPeter Dunlap ldi_ident_release(iscsit_global.global_li); 328a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DETACHED; 329a6d42e7dSPeter Dunlap 330a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 331a6d42e7dSPeter Dunlap 332a6d42e7dSPeter Dunlap return (DDI_SUCCESS); 333a6d42e7dSPeter Dunlap } 334a6d42e7dSPeter Dunlap 335a6d42e7dSPeter Dunlap /*ARGSUSED*/ 336a6d42e7dSPeter Dunlap static int 337a6d42e7dSPeter Dunlap iscsit_drv_open(dev_t *devp, int flag, int otyp, cred_t *credp) 338a6d42e7dSPeter Dunlap { 339a6d42e7dSPeter Dunlap return (0); 340a6d42e7dSPeter Dunlap } 341a6d42e7dSPeter Dunlap 342a6d42e7dSPeter Dunlap /* ARGSUSED */ 343a6d42e7dSPeter Dunlap static int 344a6d42e7dSPeter Dunlap iscsit_drv_close(dev_t dev, int flag, int otyp, cred_t *credp) 345a6d42e7dSPeter Dunlap { 346a6d42e7dSPeter Dunlap return (0); 347a6d42e7dSPeter Dunlap } 348a6d42e7dSPeter Dunlap 349a6d42e7dSPeter Dunlap static boolean_t 350a6d42e7dSPeter Dunlap iscsit_drv_busy(void) 351a6d42e7dSPeter Dunlap { 352a6d42e7dSPeter Dunlap switch (iscsit_global.global_svc_state) { 353a6d42e7dSPeter Dunlap case ISE_DISABLED: 354a6d42e7dSPeter Dunlap case ISE_DETACHED: 355a6d42e7dSPeter Dunlap return (B_FALSE); 356a6d42e7dSPeter Dunlap default: 357a6d42e7dSPeter Dunlap return (B_TRUE); 358a6d42e7dSPeter Dunlap } 359a6d42e7dSPeter Dunlap /* NOTREACHED */ 360a6d42e7dSPeter Dunlap } 361a6d42e7dSPeter Dunlap 362a6d42e7dSPeter Dunlap /* ARGSUSED */ 363a6d42e7dSPeter Dunlap static int 364a6d42e7dSPeter Dunlap iscsit_drv_ioctl(dev_t drv, int cmd, intptr_t argp, int flag, cred_t *cred, 365a6d42e7dSPeter Dunlap int *retval) 366a6d42e7dSPeter Dunlap { 367a6d42e7dSPeter Dunlap iscsit_ioc_set_config_t setcfg; 368a6d42e7dSPeter Dunlap iscsit_ioc_set_config32_t setcfg32; 369a6d42e7dSPeter Dunlap /* iscsit_ioc_get_config_t getcfg; */ 370a6d42e7dSPeter Dunlap char *cfg_pnvlist; 371a6d42e7dSPeter Dunlap nvlist_t *cfg_nvlist; 372a6d42e7dSPeter Dunlap it_config_t *cfg; 373a6d42e7dSPeter Dunlap idm_status_t idmrc; 374a6d42e7dSPeter Dunlap int rc = 0; 375a6d42e7dSPeter Dunlap 376a6d42e7dSPeter Dunlap if (drv_priv(cred) != 0) { 377a6d42e7dSPeter Dunlap return (EPERM); 378a6d42e7dSPeter Dunlap } 379a6d42e7dSPeter Dunlap 380a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_LOCK(RW_WRITER); 381a6d42e7dSPeter Dunlap 382a6d42e7dSPeter Dunlap /* 383a6d42e7dSPeter Dunlap * Validate ioctl requests against global service state 384a6d42e7dSPeter Dunlap */ 385a6d42e7dSPeter Dunlap switch (iscsit_global.global_svc_state) { 386a6d42e7dSPeter Dunlap case ISE_ENABLED: 387a6d42e7dSPeter Dunlap if (cmd == ISCSIT_IOC_DISABLE_SVC) { 388a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DISABLING; 389a6d42e7dSPeter Dunlap } else if (cmd == ISCSIT_IOC_ENABLE_SVC) { 390a6d42e7dSPeter Dunlap /* Already enabled */ 391a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 392a6d42e7dSPeter Dunlap return (0); 393a6d42e7dSPeter Dunlap } else { 394a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_BUSY; 395a6d42e7dSPeter Dunlap } 396a6d42e7dSPeter Dunlap break; 397a6d42e7dSPeter Dunlap case ISE_DISABLED: 398a6d42e7dSPeter Dunlap if (cmd == ISCSIT_IOC_ENABLE_SVC) { 399a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_ENABLING; 400a6d42e7dSPeter Dunlap } else if (cmd == ISCSIT_IOC_DISABLE_SVC) { 401a6d42e7dSPeter Dunlap /* Already disabled */ 402a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 403a6d42e7dSPeter Dunlap return (0); 404a6d42e7dSPeter Dunlap } else { 405a6d42e7dSPeter Dunlap rc = EFAULT; 406a6d42e7dSPeter Dunlap } 407a6d42e7dSPeter Dunlap break; 408a6d42e7dSPeter Dunlap case ISE_ENABLING: 409a6d42e7dSPeter Dunlap case ISE_DISABLING: 410a6d42e7dSPeter Dunlap rc = EAGAIN; 411a6d42e7dSPeter Dunlap break; 412a6d42e7dSPeter Dunlap case ISE_DETACHED: 413a6d42e7dSPeter Dunlap default: 414a6d42e7dSPeter Dunlap rc = EFAULT; 415a6d42e7dSPeter Dunlap break; 416a6d42e7dSPeter Dunlap } 417a6d42e7dSPeter Dunlap 418a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 419a6d42e7dSPeter Dunlap if (rc != 0) 420a6d42e7dSPeter Dunlap return (rc); 421a6d42e7dSPeter Dunlap 422a6d42e7dSPeter Dunlap /* Handle ioctl request (enable/disable have already been handled) */ 423a6d42e7dSPeter Dunlap switch (cmd) { 424a6d42e7dSPeter Dunlap case ISCSIT_IOC_SET_CONFIG: 425a6d42e7dSPeter Dunlap switch (ddi_model_convert_from(flag & FMODELS)) { 426a6d42e7dSPeter Dunlap case DDI_MODEL_ILP32: 427a6d42e7dSPeter Dunlap if (ddi_copyin((void *)argp, &setcfg32, 428a6d42e7dSPeter Dunlap sizeof (iscsit_ioc_set_config32_t), flag) != 0) 429a6d42e7dSPeter Dunlap return (EFAULT); 430a6d42e7dSPeter Dunlap 431a6d42e7dSPeter Dunlap setcfg.set_cfg_pnvlist = 432a6d42e7dSPeter Dunlap (char *)((uintptr_t)setcfg32.set_cfg_pnvlist); 433a6d42e7dSPeter Dunlap setcfg.set_cfg_vers = setcfg32.set_cfg_vers; 434a6d42e7dSPeter Dunlap setcfg.set_cfg_pnvlist_len = 435a6d42e7dSPeter Dunlap setcfg32.set_cfg_pnvlist_len; 436a6d42e7dSPeter Dunlap break; 437a6d42e7dSPeter Dunlap case DDI_MODEL_NONE: 438a6d42e7dSPeter Dunlap if (ddi_copyin((void *)argp, &setcfg, 439a6d42e7dSPeter Dunlap sizeof (iscsit_ioc_set_config_t), flag) != 0) 440a6d42e7dSPeter Dunlap return (EFAULT); 441a6d42e7dSPeter Dunlap break; 442a6d42e7dSPeter Dunlap } 443a6d42e7dSPeter Dunlap 444a6d42e7dSPeter Dunlap /* Check API version */ 445a6d42e7dSPeter Dunlap if (setcfg.set_cfg_vers != ISCSIT_API_VERS0) { 446a6d42e7dSPeter Dunlap return (EINVAL); 447a6d42e7dSPeter Dunlap } 448a6d42e7dSPeter Dunlap 449a6d42e7dSPeter Dunlap /* Config is in packed nvlist format so unpack it */ 450a6d42e7dSPeter Dunlap cfg_pnvlist = kmem_alloc(setcfg.set_cfg_pnvlist_len, 451a6d42e7dSPeter Dunlap KM_SLEEP); 452a6d42e7dSPeter Dunlap ASSERT(cfg_pnvlist != NULL); 453a6d42e7dSPeter Dunlap 454a6d42e7dSPeter Dunlap if (ddi_copyin(setcfg.set_cfg_pnvlist, cfg_pnvlist, 455a6d42e7dSPeter Dunlap setcfg.set_cfg_pnvlist_len, flag) != 0) { 456a6d42e7dSPeter Dunlap kmem_free(cfg_pnvlist, setcfg.set_cfg_pnvlist_len); 457a6d42e7dSPeter Dunlap return (EFAULT); 458a6d42e7dSPeter Dunlap } 459a6d42e7dSPeter Dunlap 460a6d42e7dSPeter Dunlap if (nvlist_unpack(cfg_pnvlist, setcfg.set_cfg_pnvlist_len, 461a6d42e7dSPeter Dunlap &cfg_nvlist, KM_SLEEP) != 0) { 462a6d42e7dSPeter Dunlap kmem_free(cfg_pnvlist, setcfg.set_cfg_pnvlist_len); 463a6d42e7dSPeter Dunlap return (EINVAL); 464a6d42e7dSPeter Dunlap } 465a6d42e7dSPeter Dunlap 466a6d42e7dSPeter Dunlap /* Translate nvlist */ 467a6d42e7dSPeter Dunlap if (it_nv_to_config(cfg_nvlist, &cfg) != 0) { 468a6d42e7dSPeter Dunlap cmn_err(CE_WARN, "Configuration is invalid"); 469a6d42e7dSPeter Dunlap kmem_free(cfg_pnvlist, setcfg.set_cfg_pnvlist_len); 470a6d42e7dSPeter Dunlap nvlist_free(cfg_nvlist); 471a6d42e7dSPeter Dunlap return (EINVAL); 472a6d42e7dSPeter Dunlap } 473a6d42e7dSPeter Dunlap 474a6d42e7dSPeter Dunlap /* Update config */ 475a6d42e7dSPeter Dunlap if (iscsit_config_merge(cfg) != 0) { 476a6d42e7dSPeter Dunlap kmem_free(cfg_pnvlist, setcfg.set_cfg_pnvlist_len); 477a6d42e7dSPeter Dunlap nvlist_free(cfg_nvlist); 478a6d42e7dSPeter Dunlap return (EIO); 479a6d42e7dSPeter Dunlap } 480a6d42e7dSPeter Dunlap 481a6d42e7dSPeter Dunlap it_config_free_cmn(cfg); 482a6d42e7dSPeter Dunlap kmem_free(cfg_pnvlist, setcfg.set_cfg_pnvlist_len); 483a6d42e7dSPeter Dunlap nvlist_free(cfg_nvlist); 484a6d42e7dSPeter Dunlap 485a6d42e7dSPeter Dunlap /* 486a6d42e7dSPeter Dunlap * Now that the reconfig is complete set our state back to 487a6d42e7dSPeter Dunlap * enabled. 488a6d42e7dSPeter Dunlap */ 489a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_LOCK(RW_WRITER); 490a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_ENABLED; 491a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 492a6d42e7dSPeter Dunlap break; 493a6d42e7dSPeter Dunlap case ISCSIT_IOC_ENABLE_SVC: { 494a6d42e7dSPeter Dunlap iscsit_hostinfo_t hostinfo; 495a6d42e7dSPeter Dunlap 496a6d42e7dSPeter Dunlap if (ddi_copyin((void *)argp, &hostinfo.length, 497a6d42e7dSPeter Dunlap sizeof (hostinfo.length), flag) != 0) { 498a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DISABLED; 499a6d42e7dSPeter Dunlap return (EFAULT); 500a6d42e7dSPeter Dunlap } 501a6d42e7dSPeter Dunlap 502a6d42e7dSPeter Dunlap if (hostinfo.length > sizeof (hostinfo.fqhn)) 503a6d42e7dSPeter Dunlap hostinfo.length = sizeof (hostinfo.fqhn); 504a6d42e7dSPeter Dunlap 505a6d42e7dSPeter Dunlap if (ddi_copyin((void *)((caddr_t)argp + 506a6d42e7dSPeter Dunlap sizeof (hostinfo.length)), &hostinfo.fqhn, 507a6d42e7dSPeter Dunlap hostinfo.length, flag) != 0) { 508a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DISABLED; 509a6d42e7dSPeter Dunlap return (EFAULT); 510a6d42e7dSPeter Dunlap } 511a6d42e7dSPeter Dunlap 512a6d42e7dSPeter Dunlap idmrc = iscsit_enable_svc(&hostinfo); 513a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_LOCK(RW_WRITER); 514a6d42e7dSPeter Dunlap if (idmrc == IDM_STATUS_SUCCESS) { 515a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_ENABLED; 516a6d42e7dSPeter Dunlap } else { 517a6d42e7dSPeter Dunlap rc = EIO; 518a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DISABLED; 519a6d42e7dSPeter Dunlap } 520a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 521a6d42e7dSPeter Dunlap break; 522a6d42e7dSPeter Dunlap } 523a6d42e7dSPeter Dunlap case ISCSIT_IOC_DISABLE_SVC: 524a6d42e7dSPeter Dunlap iscsit_disable_svc(); 525a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_LOCK(RW_WRITER); 526a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DISABLED; 527a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 528a6d42e7dSPeter Dunlap break; 529a6d42e7dSPeter Dunlap default: 530a6d42e7dSPeter Dunlap rc = EINVAL; 531a6d42e7dSPeter Dunlap } 532a6d42e7dSPeter Dunlap 533a6d42e7dSPeter Dunlap /* Don't forget to clear ISE_BUSY state */ 534a6d42e7dSPeter Dunlap ASSERT(iscsit_global.global_svc_state != ISE_BUSY); 535a6d42e7dSPeter Dunlap 536a6d42e7dSPeter Dunlap return (rc); 537a6d42e7dSPeter Dunlap } 538a6d42e7dSPeter Dunlap 539a6d42e7dSPeter Dunlap static idm_status_t 540a6d42e7dSPeter Dunlap iscsit_init(dev_info_t *dip) 541a6d42e7dSPeter Dunlap { 542a6d42e7dSPeter Dunlap int rc; 543a6d42e7dSPeter Dunlap 544a6d42e7dSPeter Dunlap rc = ldi_ident_from_dip(dip, &iscsit_global.global_li); 545a6d42e7dSPeter Dunlap ASSERT(rc == 0); /* Failure indicates invalid argument */ 546a6d42e7dSPeter Dunlap 547a6d42e7dSPeter Dunlap iscsit_global.global_svc_state = ISE_DISABLED; 548a6d42e7dSPeter Dunlap 549a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 550a6d42e7dSPeter Dunlap } 551a6d42e7dSPeter Dunlap 552a6d42e7dSPeter Dunlap /* 553a6d42e7dSPeter Dunlap * iscsit_enable_svc 554a6d42e7dSPeter Dunlap * 555a6d42e7dSPeter Dunlap * registers all the configured targets and target portals with STMF 556a6d42e7dSPeter Dunlap */ 557a6d42e7dSPeter Dunlap static idm_status_t 558a6d42e7dSPeter Dunlap iscsit_enable_svc(iscsit_hostinfo_t *hostinfo) 559a6d42e7dSPeter Dunlap { 560a6d42e7dSPeter Dunlap stmf_port_provider_t *pp; 561a6d42e7dSPeter Dunlap stmf_dbuf_store_t *dbuf_store; 562a6d42e7dSPeter Dunlap boolean_t did_iscsit_isns_init; 563a6d42e7dSPeter Dunlap idm_status_t retval = IDM_STATUS_SUCCESS; 564a6d42e7dSPeter Dunlap 565a6d42e7dSPeter Dunlap ASSERT(iscsit_global.global_svc_state == ISE_ENABLING); 566a6d42e7dSPeter Dunlap 567a6d42e7dSPeter Dunlap /* 568a6d42e7dSPeter Dunlap * Make sure that can tell if we have partially allocated 569a6d42e7dSPeter Dunlap * in case we need to exit and tear down anything allocated. 570a6d42e7dSPeter Dunlap */ 571a6d42e7dSPeter Dunlap iscsit_global.global_tsih_pool = NULL; 572a6d42e7dSPeter Dunlap iscsit_global.global_dbuf_store = NULL; 573a6d42e7dSPeter Dunlap iscsit_status_pdu_cache = NULL; 574a6d42e7dSPeter Dunlap pp = NULL; 575a6d42e7dSPeter Dunlap iscsit_global.global_pp = NULL; 576a6d42e7dSPeter Dunlap iscsit_global.global_default_tpg = NULL; 577a6d42e7dSPeter Dunlap did_iscsit_isns_init = B_FALSE; 578a6d42e7dSPeter Dunlap iscsit_global.global_dispatch_taskq = NULL; 579a6d42e7dSPeter Dunlap 580a6d42e7dSPeter Dunlap /* Setup remaining fields in iscsit_global_t */ 581a6d42e7dSPeter Dunlap idm_refcnt_init(&iscsit_global.global_refcnt, 582a6d42e7dSPeter Dunlap &iscsit_global); 583a6d42e7dSPeter Dunlap 584a6d42e7dSPeter Dunlap avl_create(&iscsit_global.global_discovery_sessions, 585a6d42e7dSPeter Dunlap iscsit_sess_avl_compare, sizeof (iscsit_sess_t), 586a6d42e7dSPeter Dunlap offsetof(iscsit_sess_t, ist_tgt_ln)); 587a6d42e7dSPeter Dunlap 588a6d42e7dSPeter Dunlap avl_create(&iscsit_global.global_target_list, 589a6d42e7dSPeter Dunlap iscsit_tgt_avl_compare, sizeof (iscsit_tgt_t), 590a6d42e7dSPeter Dunlap offsetof(iscsit_tgt_t, target_global_ln)); 591a6d42e7dSPeter Dunlap 592a6d42e7dSPeter Dunlap list_create(&iscsit_global.global_deleted_target_list, 593a6d42e7dSPeter Dunlap sizeof (iscsit_tgt_t), 594a6d42e7dSPeter Dunlap offsetof(iscsit_tgt_t, target_global_deleted_ln)); 595a6d42e7dSPeter Dunlap 596a6d42e7dSPeter Dunlap avl_create(&iscsit_global.global_tpg_list, 597a6d42e7dSPeter Dunlap iscsit_tpg_avl_compare, sizeof (iscsit_tpg_t), 598a6d42e7dSPeter Dunlap offsetof(iscsit_tpg_t, tpg_global_ln)); 599a6d42e7dSPeter Dunlap 600a6d42e7dSPeter Dunlap avl_create(&iscsit_global.global_ini_list, 601a6d42e7dSPeter Dunlap iscsit_ini_avl_compare, sizeof (iscsit_ini_t), 602a6d42e7dSPeter Dunlap offsetof(iscsit_ini_t, ini_global_ln)); 603a6d42e7dSPeter Dunlap 604a6d42e7dSPeter Dunlap iscsit_global.global_tsih_pool = vmem_create("iscsit_tsih_pool", 605a6d42e7dSPeter Dunlap (void *)1, ISCSI_MAX_TSIH, 1, NULL, NULL, NULL, 0, 606a6d42e7dSPeter Dunlap VM_SLEEP | VMC_IDENTIFIER); 607a6d42e7dSPeter Dunlap 608a6d42e7dSPeter Dunlap /* 609a6d42e7dSPeter Dunlap * Setup STMF dbuf store. Our buffers are bound to a specific 610a6d42e7dSPeter Dunlap * connection so we really can't let STMF cache buffers for us. 611a6d42e7dSPeter Dunlap * Consequently we'll just allocate one global buffer store. 612a6d42e7dSPeter Dunlap */ 613a6d42e7dSPeter Dunlap dbuf_store = stmf_alloc(STMF_STRUCT_DBUF_STORE, 0, 0); 614a6d42e7dSPeter Dunlap if (dbuf_store == NULL) { 615a6d42e7dSPeter Dunlap retval = IDM_STATUS_FAIL; 616a6d42e7dSPeter Dunlap goto tear_down_and_return; 617a6d42e7dSPeter Dunlap } 618a6d42e7dSPeter Dunlap dbuf_store->ds_alloc_data_buf = iscsit_dbuf_alloc; 619a6d42e7dSPeter Dunlap dbuf_store->ds_free_data_buf = iscsit_dbuf_free; 620a6d42e7dSPeter Dunlap dbuf_store->ds_port_private = NULL; 621a6d42e7dSPeter Dunlap iscsit_global.global_dbuf_store = dbuf_store; 622a6d42e7dSPeter Dunlap 623a6d42e7dSPeter Dunlap /* Status PDU cache */ 624a6d42e7dSPeter Dunlap iscsit_status_pdu_cache = kmem_cache_create("iscsit_status_pdu_cache", 625a6d42e7dSPeter Dunlap sizeof (idm_pdu_t) + sizeof (iscsi_scsi_rsp_hdr_t), 8, 626a6d42e7dSPeter Dunlap &iscsit_status_pdu_constructor, 627a6d42e7dSPeter Dunlap NULL, NULL, NULL, NULL, KM_SLEEP); 628a6d42e7dSPeter Dunlap 629a6d42e7dSPeter Dunlap /* Default TPG and portal */ 630a6d42e7dSPeter Dunlap iscsit_global.global_default_tpg = iscsit_tpg_createdefault(); 631a6d42e7dSPeter Dunlap if (iscsit_global.global_default_tpg == NULL) { 632a6d42e7dSPeter Dunlap retval = IDM_STATUS_FAIL; 633a6d42e7dSPeter Dunlap goto tear_down_and_return; 634a6d42e7dSPeter Dunlap } 635a6d42e7dSPeter Dunlap 636a6d42e7dSPeter Dunlap /* initialize isns client */ 637a6d42e7dSPeter Dunlap (void) iscsit_isns_init(hostinfo); 638a6d42e7dSPeter Dunlap did_iscsit_isns_init = B_TRUE; 639a6d42e7dSPeter Dunlap 640a6d42e7dSPeter Dunlap /* Register port provider */ 641a6d42e7dSPeter Dunlap pp = stmf_alloc(STMF_STRUCT_PORT_PROVIDER, 0, 0); 642a6d42e7dSPeter Dunlap if (pp == NULL) { 643a6d42e7dSPeter Dunlap retval = IDM_STATUS_FAIL; 644a6d42e7dSPeter Dunlap goto tear_down_and_return; 645a6d42e7dSPeter Dunlap } 646a6d42e7dSPeter Dunlap 647a6d42e7dSPeter Dunlap pp->pp_portif_rev = PORTIF_REV_1; 648a6d42e7dSPeter Dunlap pp->pp_instance = 0; 649a6d42e7dSPeter Dunlap pp->pp_name = ISCSIT_MODNAME; 650a6d42e7dSPeter Dunlap pp->pp_cb = iscsit_pp_cb; 651a6d42e7dSPeter Dunlap 652a6d42e7dSPeter Dunlap iscsit_global.global_pp = pp; 653a6d42e7dSPeter Dunlap 654a6d42e7dSPeter Dunlap 655a6d42e7dSPeter Dunlap if (stmf_register_port_provider(pp) != STMF_SUCCESS) { 656a6d42e7dSPeter Dunlap retval = IDM_STATUS_FAIL; 657a6d42e7dSPeter Dunlap goto tear_down_and_return; 658a6d42e7dSPeter Dunlap } 659a6d42e7dSPeter Dunlap 660a6d42e7dSPeter Dunlap iscsit_global.global_dispatch_taskq = taskq_create("iscsit_dispatch", 661a6d42e7dSPeter Dunlap 1, minclsyspri, 16, 16, TASKQ_PREPOPULATE); 662a6d42e7dSPeter Dunlap 663a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 664a6d42e7dSPeter Dunlap 665a6d42e7dSPeter Dunlap tear_down_and_return: 666a6d42e7dSPeter Dunlap 667a6d42e7dSPeter Dunlap if (iscsit_global.global_dispatch_taskq) { 668a6d42e7dSPeter Dunlap taskq_destroy(iscsit_global.global_dispatch_taskq); 669a6d42e7dSPeter Dunlap iscsit_global.global_dispatch_taskq = NULL; 670a6d42e7dSPeter Dunlap } 671a6d42e7dSPeter Dunlap 672a6d42e7dSPeter Dunlap if (did_iscsit_isns_init) 673a6d42e7dSPeter Dunlap iscsit_isns_fini(); 674a6d42e7dSPeter Dunlap 675a6d42e7dSPeter Dunlap if (iscsit_global.global_default_tpg) { 676a6d42e7dSPeter Dunlap iscsit_tpg_destroydefault(iscsit_global.global_default_tpg); 677a6d42e7dSPeter Dunlap iscsit_global.global_default_tpg = NULL; 678a6d42e7dSPeter Dunlap } 679a6d42e7dSPeter Dunlap 680a6d42e7dSPeter Dunlap if (iscsit_global.global_pp) 681a6d42e7dSPeter Dunlap iscsit_global.global_pp = NULL; 682a6d42e7dSPeter Dunlap 683a6d42e7dSPeter Dunlap if (pp) 684a6d42e7dSPeter Dunlap stmf_free(pp); 685a6d42e7dSPeter Dunlap 686a6d42e7dSPeter Dunlap if (iscsit_status_pdu_cache) { 687a6d42e7dSPeter Dunlap kmem_cache_destroy(iscsit_status_pdu_cache); 688a6d42e7dSPeter Dunlap iscsit_status_pdu_cache = NULL; 689a6d42e7dSPeter Dunlap } 690a6d42e7dSPeter Dunlap 691a6d42e7dSPeter Dunlap if (iscsit_global.global_dbuf_store) { 692a6d42e7dSPeter Dunlap stmf_free(iscsit_global.global_dbuf_store); 693a6d42e7dSPeter Dunlap iscsit_global.global_dbuf_store = NULL; 694a6d42e7dSPeter Dunlap } 695a6d42e7dSPeter Dunlap 696a6d42e7dSPeter Dunlap if (iscsit_global.global_tsih_pool) { 697a6d42e7dSPeter Dunlap vmem_destroy(iscsit_global.global_tsih_pool); 698a6d42e7dSPeter Dunlap iscsit_global.global_tsih_pool = NULL; 699a6d42e7dSPeter Dunlap } 700a6d42e7dSPeter Dunlap 701a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_ini_list); 702a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_tpg_list); 703a6d42e7dSPeter Dunlap list_destroy(&iscsit_global.global_deleted_target_list); 704a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_target_list); 705a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_discovery_sessions); 706a6d42e7dSPeter Dunlap 707a6d42e7dSPeter Dunlap idm_refcnt_destroy(&iscsit_global.global_refcnt); 708a6d42e7dSPeter Dunlap 709a6d42e7dSPeter Dunlap return (retval); 710a6d42e7dSPeter Dunlap } 711a6d42e7dSPeter Dunlap 712a6d42e7dSPeter Dunlap /* 713a6d42e7dSPeter Dunlap * iscsit_disable_svc 714a6d42e7dSPeter Dunlap * 715a6d42e7dSPeter Dunlap * clean up all existing connections and deregister targets from STMF 716a6d42e7dSPeter Dunlap */ 717a6d42e7dSPeter Dunlap static void 718a6d42e7dSPeter Dunlap iscsit_disable_svc(void) 719a6d42e7dSPeter Dunlap { 720a6d42e7dSPeter Dunlap iscsit_sess_t *sess; 721a6d42e7dSPeter Dunlap 722a6d42e7dSPeter Dunlap ASSERT(iscsit_global.global_svc_state == ISE_DISABLING); 723a6d42e7dSPeter Dunlap 724a6d42e7dSPeter Dunlap /* tear down discovery sessions */ 725a6d42e7dSPeter Dunlap for (sess = avl_first(&iscsit_global.global_discovery_sessions); 726a6d42e7dSPeter Dunlap sess != NULL; 727a6d42e7dSPeter Dunlap sess = AVL_NEXT(&iscsit_global.global_discovery_sessions, sess)) 728a6d42e7dSPeter Dunlap iscsit_sess_close(sess); 729a6d42e7dSPeter Dunlap 730a6d42e7dSPeter Dunlap /* 731a6d42e7dSPeter Dunlap * Passing NULL to iscsit_config_merge tells it to go to an empty 732a6d42e7dSPeter Dunlap * config. 733a6d42e7dSPeter Dunlap */ 734a6d42e7dSPeter Dunlap (void) iscsit_config_merge(NULL); 735a6d42e7dSPeter Dunlap 736a6d42e7dSPeter Dunlap /* 737a6d42e7dSPeter Dunlap * Wait until there are no more global references 738a6d42e7dSPeter Dunlap */ 739a6d42e7dSPeter Dunlap idm_refcnt_wait_ref(&iscsit_global.global_refcnt); 740a6d42e7dSPeter Dunlap idm_refcnt_destroy(&iscsit_global.global_refcnt); 741a6d42e7dSPeter Dunlap 742a6d42e7dSPeter Dunlap /* 743a6d42e7dSPeter Dunlap * Default TPG must be destroyed after global_refcnt is 0. 744a6d42e7dSPeter Dunlap */ 745a6d42e7dSPeter Dunlap iscsit_tpg_destroydefault(iscsit_global.global_default_tpg); 746a6d42e7dSPeter Dunlap 747a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_discovery_sessions); 748a6d42e7dSPeter Dunlap list_destroy(&iscsit_global.global_deleted_target_list); 749a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_target_list); 750a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_tpg_list); 751a6d42e7dSPeter Dunlap avl_destroy(&iscsit_global.global_ini_list); 752a6d42e7dSPeter Dunlap 753a6d42e7dSPeter Dunlap taskq_destroy(iscsit_global.global_dispatch_taskq); 754a6d42e7dSPeter Dunlap 755a6d42e7dSPeter Dunlap iscsit_isns_fini(); 756a6d42e7dSPeter Dunlap 757a6d42e7dSPeter Dunlap stmf_free(iscsit_global.global_dbuf_store); 758a6d42e7dSPeter Dunlap iscsit_global.global_dbuf_store = NULL; 759a6d42e7dSPeter Dunlap 760a6d42e7dSPeter Dunlap (void) stmf_deregister_port_provider(iscsit_global.global_pp); 761a6d42e7dSPeter Dunlap stmf_free(iscsit_global.global_pp); 762a6d42e7dSPeter Dunlap iscsit_global.global_pp = NULL; 763a6d42e7dSPeter Dunlap 764a6d42e7dSPeter Dunlap kmem_cache_destroy(iscsit_status_pdu_cache); 765a6d42e7dSPeter Dunlap iscsit_status_pdu_cache = NULL; 766a6d42e7dSPeter Dunlap 767a6d42e7dSPeter Dunlap vmem_destroy(iscsit_global.global_tsih_pool); 768a6d42e7dSPeter Dunlap iscsit_global.global_tsih_pool = NULL; 769a6d42e7dSPeter Dunlap } 770a6d42e7dSPeter Dunlap 771a6d42e7dSPeter Dunlap void 772a6d42e7dSPeter Dunlap iscsit_global_hold() 773a6d42e7dSPeter Dunlap { 774a6d42e7dSPeter Dunlap idm_refcnt_hold(&iscsit_global.global_refcnt); 775a6d42e7dSPeter Dunlap } 776a6d42e7dSPeter Dunlap 777a6d42e7dSPeter Dunlap void 778a6d42e7dSPeter Dunlap iscsit_global_rele() 779a6d42e7dSPeter Dunlap { 780a6d42e7dSPeter Dunlap idm_refcnt_rele(&iscsit_global.global_refcnt); 781a6d42e7dSPeter Dunlap } 782a6d42e7dSPeter Dunlap 783a6d42e7dSPeter Dunlap void 784a6d42e7dSPeter Dunlap iscsit_global_wait_ref() 785a6d42e7dSPeter Dunlap { 786a6d42e7dSPeter Dunlap idm_refcnt_wait_ref(&iscsit_global.global_refcnt); 787a6d42e7dSPeter Dunlap } 788a6d42e7dSPeter Dunlap 789a6d42e7dSPeter Dunlap /* 790a6d42e7dSPeter Dunlap * IDM callbacks 791a6d42e7dSPeter Dunlap */ 792a6d42e7dSPeter Dunlap 793a6d42e7dSPeter Dunlap /*ARGSUSED*/ 794a6d42e7dSPeter Dunlap void 795a6d42e7dSPeter Dunlap iscsit_rx_pdu(idm_conn_t *ic, idm_pdu_t *rx_pdu) 796a6d42e7dSPeter Dunlap { 797a6d42e7dSPeter Dunlap iscsit_conn_t *ict = ic->ic_handle; 798a6d42e7dSPeter Dunlap switch (IDM_PDU_OPCODE(rx_pdu)) { 799a6d42e7dSPeter Dunlap case ISCSI_OP_SCSI_CMD: 800a6d42e7dSPeter Dunlap ASSERT(0); /* Shouldn't happen */ 801a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 802a6d42e7dSPeter Dunlap break; 803a6d42e7dSPeter Dunlap case ISCSI_OP_SNACK_CMD: 804a6d42e7dSPeter Dunlap /* 805a6d42e7dSPeter Dunlap * We'll need to handle this when we support ERL1/2. For 806a6d42e7dSPeter Dunlap * now we treat it as a protocol error. 807a6d42e7dSPeter Dunlap */ 808a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 809a6d42e7dSPeter Dunlap idm_conn_event(ic, CE_TRANSPORT_FAIL, NULL); 810a6d42e7dSPeter Dunlap break; 811a6d42e7dSPeter Dunlap case ISCSI_OP_SCSI_TASK_MGT_MSG: 812a6d42e7dSPeter Dunlap iscsit_set_cmdsn(ict, rx_pdu); 813a6d42e7dSPeter Dunlap iscsit_op_scsi_task_mgmt(ict, rx_pdu); 814a6d42e7dSPeter Dunlap break; 815a6d42e7dSPeter Dunlap case ISCSI_OP_NOOP_OUT: 816a6d42e7dSPeter Dunlap case ISCSI_OP_LOGIN_CMD: 817a6d42e7dSPeter Dunlap case ISCSI_OP_TEXT_CMD: 818a6d42e7dSPeter Dunlap case ISCSI_OP_LOGOUT_CMD: 819a6d42e7dSPeter Dunlap /* 820a6d42e7dSPeter Dunlap * If/when we switch to userland processing these PDU's 821a6d42e7dSPeter Dunlap * will be handled by iscsitd. 822a6d42e7dSPeter Dunlap */ 823a6d42e7dSPeter Dunlap iscsit_deferred_dispatch(rx_pdu); 824a6d42e7dSPeter Dunlap break; 825a6d42e7dSPeter Dunlap default: 826a6d42e7dSPeter Dunlap /* Protocol error */ 827a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 828a6d42e7dSPeter Dunlap idm_conn_event(ic, CE_TRANSPORT_FAIL, NULL); 829a6d42e7dSPeter Dunlap break; 830a6d42e7dSPeter Dunlap } 831a6d42e7dSPeter Dunlap } 832a6d42e7dSPeter Dunlap 833a6d42e7dSPeter Dunlap /*ARGSUSED*/ 834a6d42e7dSPeter Dunlap void 835a6d42e7dSPeter Dunlap iscsit_rx_pdu_error(idm_conn_t *ic, idm_pdu_t *rx_pdu, idm_status_t status) 836a6d42e7dSPeter Dunlap { 837a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 838a6d42e7dSPeter Dunlap } 839a6d42e7dSPeter Dunlap 840a6d42e7dSPeter Dunlap void 841a6d42e7dSPeter Dunlap iscsit_task_aborted(idm_task_t *idt, idm_status_t status) 842a6d42e7dSPeter Dunlap { 843a6d42e7dSPeter Dunlap iscsit_task_t *itask = idt->idt_private; 844a6d42e7dSPeter Dunlap 845a6d42e7dSPeter Dunlap switch (status) { 846a6d42e7dSPeter Dunlap case IDM_STATUS_SUSPENDED: 847a6d42e7dSPeter Dunlap break; 848a6d42e7dSPeter Dunlap case IDM_STATUS_ABORTED: 849a6d42e7dSPeter Dunlap mutex_enter(&itask->it_mutex); 850a6d42e7dSPeter Dunlap itask->it_aborted = B_TRUE; 851bf604c64SPeter Dunlap /* 852bf604c64SPeter Dunlap * We rely on the fact that STMF tracks outstanding 853bf604c64SPeter Dunlap * buffer transfers and will free all of our buffers 854bf604c64SPeter Dunlap * before freeing the task so we don't need to 855bf604c64SPeter Dunlap * explicitly free the buffers from iscsit/idm 856bf604c64SPeter Dunlap */ 857a6d42e7dSPeter Dunlap if (itask->it_stmf_abort) { 858a6d42e7dSPeter Dunlap mutex_exit(&itask->it_mutex); 859a6d42e7dSPeter Dunlap /* 860bf604c64SPeter Dunlap * STMF has already asked for this task to be aborted 861bf604c64SPeter Dunlap * 862a6d42e7dSPeter Dunlap * STMF specification is wrong... says to return 863a6d42e7dSPeter Dunlap * STMF_ABORTED, the code actually looks for 864a6d42e7dSPeter Dunlap * STMF_ABORT_SUCCESS. 865a6d42e7dSPeter Dunlap */ 866a6d42e7dSPeter Dunlap stmf_task_lport_aborted(itask->it_stmf_task, 867a6d42e7dSPeter Dunlap STMF_ABORT_SUCCESS, STMF_IOF_LPORT_DONE); 868a6d42e7dSPeter Dunlap return; 869a6d42e7dSPeter Dunlap } else { 870a6d42e7dSPeter Dunlap mutex_exit(&itask->it_mutex); 871a6d42e7dSPeter Dunlap /* 872bf604c64SPeter Dunlap * Tell STMF to stop processing the task. 873a6d42e7dSPeter Dunlap */ 874a6d42e7dSPeter Dunlap stmf_abort(STMF_QUEUE_TASK_ABORT, itask->it_stmf_task, 875a6d42e7dSPeter Dunlap STMF_ABORTED, NULL); 876a6d42e7dSPeter Dunlap return; 877a6d42e7dSPeter Dunlap } 878a6d42e7dSPeter Dunlap /*NOTREACHED*/ 879a6d42e7dSPeter Dunlap default: 880a6d42e7dSPeter Dunlap ASSERT(0); 881a6d42e7dSPeter Dunlap } 882a6d42e7dSPeter Dunlap } 883a6d42e7dSPeter Dunlap 884a6d42e7dSPeter Dunlap /*ARGSUSED*/ 885a6d42e7dSPeter Dunlap idm_status_t 886a6d42e7dSPeter Dunlap iscsit_client_notify(idm_conn_t *ic, idm_client_notify_t icn, 887a6d42e7dSPeter Dunlap uintptr_t data) 888a6d42e7dSPeter Dunlap { 889a6d42e7dSPeter Dunlap idm_status_t rc = IDM_STATUS_SUCCESS; 890a6d42e7dSPeter Dunlap 891a6d42e7dSPeter Dunlap /* 892a6d42e7dSPeter Dunlap * IDM client notifications will never occur at interrupt level 893a6d42e7dSPeter Dunlap * since they are generated from the connection state machine which 894a6d42e7dSPeter Dunlap * running on taskq threads. 895a6d42e7dSPeter Dunlap * 896a6d42e7dSPeter Dunlap */ 897a6d42e7dSPeter Dunlap switch (icn) { 898a6d42e7dSPeter Dunlap case CN_CONNECT_ACCEPT: 899a6d42e7dSPeter Dunlap rc = iscsit_conn_accept(ic); /* No data */ 900a6d42e7dSPeter Dunlap break; 901a6d42e7dSPeter Dunlap case CN_FFP_ENABLED: 902a6d42e7dSPeter Dunlap rc = iscsit_ffp_enabled(ic); /* No data */ 903a6d42e7dSPeter Dunlap break; 904a6d42e7dSPeter Dunlap case CN_FFP_DISABLED: 905a6d42e7dSPeter Dunlap /* 906a6d42e7dSPeter Dunlap * Data indicates whether this was the result of an 907a6d42e7dSPeter Dunlap * explicit logout request. 908a6d42e7dSPeter Dunlap */ 909a6d42e7dSPeter Dunlap rc = iscsit_ffp_disabled(ic, (idm_ffp_disable_t)data); 910a6d42e7dSPeter Dunlap break; 911a6d42e7dSPeter Dunlap case CN_CONNECT_LOST: 912a6d42e7dSPeter Dunlap rc = iscsit_conn_lost(ic); 913a6d42e7dSPeter Dunlap break; 914a6d42e7dSPeter Dunlap case CN_CONNECT_DESTROY: 915a6d42e7dSPeter Dunlap rc = iscsit_conn_destroy(ic); 916a6d42e7dSPeter Dunlap break; 917a6d42e7dSPeter Dunlap case CN_LOGIN_FAIL: 918a6d42e7dSPeter Dunlap /* 919a6d42e7dSPeter Dunlap * Force the login state machine to completion 920a6d42e7dSPeter Dunlap */ 921a6d42e7dSPeter Dunlap rc = iscsit_login_fail(ic); 922a6d42e7dSPeter Dunlap break; 923a6d42e7dSPeter Dunlap default: 924a6d42e7dSPeter Dunlap rc = IDM_STATUS_REJECT; 925a6d42e7dSPeter Dunlap break; 926a6d42e7dSPeter Dunlap } 927a6d42e7dSPeter Dunlap 928a6d42e7dSPeter Dunlap return (rc); 929a6d42e7dSPeter Dunlap } 930a6d42e7dSPeter Dunlap 931a6d42e7dSPeter Dunlap 932a6d42e7dSPeter Dunlap void 933a6d42e7dSPeter Dunlap iscsit_build_hdr(idm_task_t *idm_task, idm_pdu_t *pdu, uint8_t opcode) 934a6d42e7dSPeter Dunlap { 935a6d42e7dSPeter Dunlap iscsit_task_t *itask = idm_task->idt_private; 936a6d42e7dSPeter Dunlap iscsi_data_rsp_hdr_t *dh = (iscsi_data_rsp_hdr_t *)pdu->isp_hdr; 937a6d42e7dSPeter Dunlap 938a6d42e7dSPeter Dunlap /* 939a6d42e7dSPeter Dunlap * We acquired iscsit_sess_t.ist_sn_rwlock in iscsit_xfer_scsi_data 940a6d42e7dSPeter Dunlap * in reader mode so we expect to be locked here 941a6d42e7dSPeter Dunlap */ 942a6d42e7dSPeter Dunlap 943a6d42e7dSPeter Dunlap /* 944a6d42e7dSPeter Dunlap * Lun is only required if the opcode == ISCSI_OP_SCSI_DATA_RSP 945a6d42e7dSPeter Dunlap * and the 'A' bit is to be set 946a6d42e7dSPeter Dunlap */ 947a6d42e7dSPeter Dunlap dh->opcode = opcode; 948a6d42e7dSPeter Dunlap dh->itt = itask->it_itt; 949a6d42e7dSPeter Dunlap dh->ttt = itask->it_ttt; 950a6d42e7dSPeter Dunlap /* Statsn is only set during phase collapse */ 951a6d42e7dSPeter Dunlap dh->expcmdsn = htonl(itask->it_ict->ict_sess->ist_expcmdsn); 952a6d42e7dSPeter Dunlap dh->maxcmdsn = htonl(itask->it_ict->ict_sess->ist_maxcmdsn); 953a6d42e7dSPeter Dunlap 954a6d42e7dSPeter Dunlap /* 955a6d42e7dSPeter Dunlap * IDM must set: 956a6d42e7dSPeter Dunlap * 957a6d42e7dSPeter Dunlap * data.flags and rtt.flags 958a6d42e7dSPeter Dunlap * data.dlength 959a6d42e7dSPeter Dunlap * data.datasn 960a6d42e7dSPeter Dunlap * data.offset 961a6d42e7dSPeter Dunlap * residual_count and cmd_status (if we ever implement phase collapse) 962a6d42e7dSPeter Dunlap * rtt.rttsn 963a6d42e7dSPeter Dunlap * rtt.data_offset 964a6d42e7dSPeter Dunlap * rtt.data_length 965a6d42e7dSPeter Dunlap */ 966a6d42e7dSPeter Dunlap } 967a6d42e7dSPeter Dunlap 968a6d42e7dSPeter Dunlap static idm_status_t 969a6d42e7dSPeter Dunlap iscsit_conn_accept(idm_conn_t *ic) 970a6d42e7dSPeter Dunlap { 971a6d42e7dSPeter Dunlap iscsit_conn_t *ict; 972a6d42e7dSPeter Dunlap 973a6d42e7dSPeter Dunlap /* 974a6d42e7dSPeter Dunlap * Allocate an associated iscsit structure to represent this 975a6d42e7dSPeter Dunlap * connection. We shouldn't really create a session until we 976a6d42e7dSPeter Dunlap * get the first login PDU. 977a6d42e7dSPeter Dunlap */ 978a6d42e7dSPeter Dunlap ict = kmem_zalloc(sizeof (*ict), KM_SLEEP); 979a6d42e7dSPeter Dunlap 980a6d42e7dSPeter Dunlap ict->ict_ic = ic; 981a6d42e7dSPeter Dunlap ict->ict_statsn = 1; 982a6d42e7dSPeter Dunlap ic->ic_handle = ict; 983a6d42e7dSPeter Dunlap mutex_init(&ict->ict_mutex, NULL, MUTEX_DRIVER, NULL); 984a6d42e7dSPeter Dunlap idm_refcnt_init(&ict->ict_refcnt, ict); 985a6d42e7dSPeter Dunlap 986a6d42e7dSPeter Dunlap /* 987a6d42e7dSPeter Dunlap * Initialize login state machine 988a6d42e7dSPeter Dunlap */ 989a6d42e7dSPeter Dunlap if (iscsit_login_sm_init(ict) != IDM_STATUS_SUCCESS) { 990a6d42e7dSPeter Dunlap return (IDM_STATUS_FAIL); 991a6d42e7dSPeter Dunlap } 992a6d42e7dSPeter Dunlap 993a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 994a6d42e7dSPeter Dunlap } 995a6d42e7dSPeter Dunlap 996a6d42e7dSPeter Dunlap idm_status_t 997a6d42e7dSPeter Dunlap iscsit_conn_reinstate(iscsit_conn_t *reinstate_ict, iscsit_conn_t *new_ict) 998a6d42e7dSPeter Dunlap { 999a6d42e7dSPeter Dunlap idm_status_t result; 1000a6d42e7dSPeter Dunlap 1001a6d42e7dSPeter Dunlap /* 1002a6d42e7dSPeter Dunlap * Note in new connection state that this connection is 1003a6d42e7dSPeter Dunlap * reinstating an existing connection. 1004a6d42e7dSPeter Dunlap */ 1005a6d42e7dSPeter Dunlap new_ict->ict_reinstating = B_TRUE; 1006a6d42e7dSPeter Dunlap new_ict->ict_reinstate_conn = reinstate_ict; 1007a6d42e7dSPeter Dunlap new_ict->ict_statsn = reinstate_ict->ict_statsn; 1008a6d42e7dSPeter Dunlap 1009a6d42e7dSPeter Dunlap /* 1010a6d42e7dSPeter Dunlap * Now generate connection state machine event to existing connection 1011a6d42e7dSPeter Dunlap * so that it starts the cleanup process. 1012a6d42e7dSPeter Dunlap */ 1013a6d42e7dSPeter Dunlap result = idm_conn_reinstate_event(reinstate_ict->ict_ic, 1014a6d42e7dSPeter Dunlap new_ict->ict_ic); 1015a6d42e7dSPeter Dunlap 1016a6d42e7dSPeter Dunlap return (result); 1017a6d42e7dSPeter Dunlap } 1018a6d42e7dSPeter Dunlap 1019a6d42e7dSPeter Dunlap void 1020a6d42e7dSPeter Dunlap iscsit_conn_hold(iscsit_conn_t *ict) 1021a6d42e7dSPeter Dunlap { 1022a6d42e7dSPeter Dunlap idm_refcnt_hold(&ict->ict_refcnt); 1023a6d42e7dSPeter Dunlap } 1024a6d42e7dSPeter Dunlap 1025a6d42e7dSPeter Dunlap void 1026a6d42e7dSPeter Dunlap iscsit_conn_rele(iscsit_conn_t *ict) 1027a6d42e7dSPeter Dunlap { 1028a6d42e7dSPeter Dunlap idm_refcnt_rele(&ict->ict_refcnt); 1029a6d42e7dSPeter Dunlap } 1030a6d42e7dSPeter Dunlap 1031a6d42e7dSPeter Dunlap void 1032a6d42e7dSPeter Dunlap iscsit_conn_dispatch_hold(iscsit_conn_t *ict) 1033a6d42e7dSPeter Dunlap { 1034a6d42e7dSPeter Dunlap idm_refcnt_hold(&ict->ict_dispatch_refcnt); 1035a6d42e7dSPeter Dunlap } 1036a6d42e7dSPeter Dunlap 1037a6d42e7dSPeter Dunlap void 1038a6d42e7dSPeter Dunlap iscsit_conn_dispatch_rele(iscsit_conn_t *ict) 1039a6d42e7dSPeter Dunlap { 1040a6d42e7dSPeter Dunlap idm_refcnt_rele(&ict->ict_dispatch_refcnt); 1041a6d42e7dSPeter Dunlap } 1042a6d42e7dSPeter Dunlap 1043a6d42e7dSPeter Dunlap static idm_status_t 1044a6d42e7dSPeter Dunlap iscsit_login_fail(idm_conn_t *ic) 1045a6d42e7dSPeter Dunlap { 1046a6d42e7dSPeter Dunlap iscsit_conn_t *ict = ic->ic_handle; 1047a6d42e7dSPeter Dunlap 1048a6d42e7dSPeter Dunlap /* Generate login state machine event */ 1049a6d42e7dSPeter Dunlap iscsit_login_sm_event(ict, ILE_LOGIN_CONN_ERROR, NULL); 1050a6d42e7dSPeter Dunlap 1051a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 1052a6d42e7dSPeter Dunlap } 1053a6d42e7dSPeter Dunlap 1054a6d42e7dSPeter Dunlap static idm_status_t 1055a6d42e7dSPeter Dunlap iscsit_ffp_enabled(idm_conn_t *ic) 1056a6d42e7dSPeter Dunlap { 1057a6d42e7dSPeter Dunlap iscsit_conn_t *ict = ic->ic_handle; 1058a6d42e7dSPeter Dunlap 1059a6d42e7dSPeter Dunlap /* Generate session state machine event */ 1060a6d42e7dSPeter Dunlap iscsit_sess_sm_event(ict->ict_sess, SE_CONN_LOGGED_IN, ict); 1061a6d42e7dSPeter Dunlap 1062a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 1063a6d42e7dSPeter Dunlap } 1064a6d42e7dSPeter Dunlap 1065a6d42e7dSPeter Dunlap static idm_status_t 1066a6d42e7dSPeter Dunlap iscsit_ffp_disabled(idm_conn_t *ic, idm_ffp_disable_t disable_class) 1067a6d42e7dSPeter Dunlap { 1068a6d42e7dSPeter Dunlap iscsit_conn_t *ict = ic->ic_handle; 1069a6d42e7dSPeter Dunlap 1070a6d42e7dSPeter Dunlap /* Generate session state machine event */ 1071a6d42e7dSPeter Dunlap switch (disable_class) { 1072a6d42e7dSPeter Dunlap case FD_CONN_FAIL: 1073a6d42e7dSPeter Dunlap iscsit_sess_sm_event(ict->ict_sess, SE_CONN_FFP_FAIL, ict); 1074a6d42e7dSPeter Dunlap break; 1075a6d42e7dSPeter Dunlap case FD_CONN_LOGOUT: 1076a6d42e7dSPeter Dunlap iscsit_sess_sm_event(ict->ict_sess, SE_CONN_FFP_DISABLE, ict); 1077a6d42e7dSPeter Dunlap break; 1078a6d42e7dSPeter Dunlap case FD_SESS_LOGOUT: 1079a6d42e7dSPeter Dunlap iscsit_sess_sm_event(ict->ict_sess, SE_SESSION_CLOSE, ict); 1080a6d42e7dSPeter Dunlap break; 1081a6d42e7dSPeter Dunlap default: 1082a6d42e7dSPeter Dunlap ASSERT(0); 1083a6d42e7dSPeter Dunlap } 1084a6d42e7dSPeter Dunlap 1085a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 1086a6d42e7dSPeter Dunlap } 1087a6d42e7dSPeter Dunlap 1088a6d42e7dSPeter Dunlap static idm_status_t 1089a6d42e7dSPeter Dunlap iscsit_conn_lost(idm_conn_t *ic) 1090a6d42e7dSPeter Dunlap { 1091a6d42e7dSPeter Dunlap iscsit_conn_t *ict = ic->ic_handle; 1092a6d42e7dSPeter Dunlap 1093a6d42e7dSPeter Dunlap mutex_enter(&ict->ict_mutex); 1094a6d42e7dSPeter Dunlap ict->ict_lost = B_TRUE; 1095a6d42e7dSPeter Dunlap mutex_exit(&ict->ict_mutex); 1096a6d42e7dSPeter Dunlap 1097a6d42e7dSPeter Dunlap /* 1098a6d42e7dSPeter Dunlap * Make sure there aren't any PDU's transitioning from the receive 1099a6d42e7dSPeter Dunlap * handler to the dispatch taskq. 1100a6d42e7dSPeter Dunlap */ 1101a6d42e7dSPeter Dunlap idm_refcnt_wait_ref(&ict->ict_dispatch_refcnt); 1102a6d42e7dSPeter Dunlap 1103a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 1104a6d42e7dSPeter Dunlap } 1105a6d42e7dSPeter Dunlap 1106a6d42e7dSPeter Dunlap static idm_status_t 1107a6d42e7dSPeter Dunlap iscsit_conn_destroy(idm_conn_t *ic) 1108a6d42e7dSPeter Dunlap { 1109a6d42e7dSPeter Dunlap iscsit_conn_t *ict = ic->ic_handle; 1110a6d42e7dSPeter Dunlap 1111a6d42e7dSPeter Dunlap mutex_enter(&ict->ict_mutex); 1112a6d42e7dSPeter Dunlap ict->ict_destroyed = B_TRUE; 1113a6d42e7dSPeter Dunlap mutex_exit(&ict->ict_mutex); 1114a6d42e7dSPeter Dunlap 1115a6d42e7dSPeter Dunlap /* Generate session state machine event */ 1116a6d42e7dSPeter Dunlap if (ict->ict_sess != NULL) { 1117a6d42e7dSPeter Dunlap /* 1118a6d42e7dSPeter Dunlap * Session state machine will call iscsit_conn_destroy_done() 1119a6d42e7dSPeter Dunlap * when it has removed references to this connection. 1120a6d42e7dSPeter Dunlap */ 1121a6d42e7dSPeter Dunlap iscsit_sess_sm_event(ict->ict_sess, SE_CONN_FAIL, ict); 1122a6d42e7dSPeter Dunlap } 1123a6d42e7dSPeter Dunlap 1124a6d42e7dSPeter Dunlap ict->ict_ic = NULL; 1125a6d42e7dSPeter Dunlap 1126a6d42e7dSPeter Dunlap idm_refcnt_wait_ref(&ict->ict_refcnt); 1127a6d42e7dSPeter Dunlap 1128a6d42e7dSPeter Dunlap mutex_destroy(&ict->ict_mutex); 1129a6d42e7dSPeter Dunlap idm_refcnt_destroy(&ict->ict_refcnt); 1130a6d42e7dSPeter Dunlap kmem_free(ict, sizeof (*ict)); 1131a6d42e7dSPeter Dunlap 1132a6d42e7dSPeter Dunlap return (IDM_STATUS_SUCCESS); 1133a6d42e7dSPeter Dunlap } 1134a6d42e7dSPeter Dunlap 1135a6d42e7dSPeter Dunlap /* 1136a6d42e7dSPeter Dunlap * STMF-related functions 1137a6d42e7dSPeter Dunlap * 1138a6d42e7dSPeter Dunlap * iSCSI to STMF mapping 1139a6d42e7dSPeter Dunlap * 1140a6d42e7dSPeter Dunlap * Session == ? 1141a6d42e7dSPeter Dunlap * Connection == bound to local port but not itself a local port 1142a6d42e7dSPeter Dunlap * Target 1143a6d42e7dSPeter Dunlap * Target portal (group?) == local port (really but we're not going to do this) 1144a6d42e7dSPeter Dunlap * iscsit needs to map connections to local ports (whatever we decide 1145a6d42e7dSPeter Dunlap * they are) 1146a6d42e7dSPeter Dunlap * Target == ? 1147a6d42e7dSPeter Dunlap */ 1148a6d42e7dSPeter Dunlap 1149a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1150a6d42e7dSPeter Dunlap static stmf_data_buf_t * 1151a6d42e7dSPeter Dunlap iscsit_dbuf_alloc(scsi_task_t *task, uint32_t size, uint32_t *pminsize, 1152a6d42e7dSPeter Dunlap uint32_t flags) 1153a6d42e7dSPeter Dunlap { 1154a6d42e7dSPeter Dunlap iscsit_task_t *itask = task->task_port_private; 1155a6d42e7dSPeter Dunlap idm_buf_t *idm_buffer; 1156a6d42e7dSPeter Dunlap iscsit_buf_t *ibuf; 1157a6d42e7dSPeter Dunlap stmf_data_buf_t *result; 1158a6d42e7dSPeter Dunlap 1159a6d42e7dSPeter Dunlap /* 1160a6d42e7dSPeter Dunlap * Once the iSER picture is better understood it might make sense 1161a6d42e7dSPeter Dunlap * to pre-allocate some registered buffers, similar to what 1162a6d42e7dSPeter Dunlap * fct/qlt are doing. In the meantime hopefully stmf can allocate 1163a6d42e7dSPeter Dunlap * these things quickly. 1164a6d42e7dSPeter Dunlap * 1165a6d42e7dSPeter Dunlap * We can't support a transfer larger than MaxBurstLength bytes. 1166a6d42e7dSPeter Dunlap */ 1167a6d42e7dSPeter Dunlap if (size > itask->it_ict->ict_op.op_max_burst_length) { 1168a6d42e7dSPeter Dunlap *pminsize = itask->it_ict->ict_op.op_max_burst_length; 1169a6d42e7dSPeter Dunlap return (NULL); 1170a6d42e7dSPeter Dunlap } 1171a6d42e7dSPeter Dunlap 1172a6d42e7dSPeter Dunlap /* Alloc buffer */ 1173a6d42e7dSPeter Dunlap idm_buffer = idm_buf_alloc(itask->it_ict->ict_ic, NULL, size); 1174a6d42e7dSPeter Dunlap if (idm_buffer != NULL) { 1175a6d42e7dSPeter Dunlap result = stmf_alloc(STMF_STRUCT_DATA_BUF, 1176a6d42e7dSPeter Dunlap sizeof (iscsit_buf_t), 0); 1177a6d42e7dSPeter Dunlap if (result != NULL) { 1178a6d42e7dSPeter Dunlap /* Fill in stmf_data_buf_t */ 1179a6d42e7dSPeter Dunlap ibuf = result->db_port_private; 1180a6d42e7dSPeter Dunlap ibuf->ibuf_idm_buf = idm_buffer; 1181a6d42e7dSPeter Dunlap ibuf->ibuf_stmf_buf = result; 1182a6d42e7dSPeter Dunlap ibuf->ibuf_is_immed = B_FALSE; 1183a6d42e7dSPeter Dunlap result->db_flags = DB_DONT_CACHE; 1184a6d42e7dSPeter Dunlap result->db_buf_size = size; 1185a6d42e7dSPeter Dunlap result->db_data_size = size; 1186a6d42e7dSPeter Dunlap result->db_sglist_length = 1; 1187a6d42e7dSPeter Dunlap result->db_sglist[0].seg_addr = idm_buffer->idb_buf; 1188a6d42e7dSPeter Dunlap result->db_sglist[0].seg_length = 1189a6d42e7dSPeter Dunlap idm_buffer->idb_buflen; 1190a6d42e7dSPeter Dunlap return (result); 1191a6d42e7dSPeter Dunlap } 1192a6d42e7dSPeter Dunlap 1193a6d42e7dSPeter Dunlap /* Couldn't get the stmf_data_buf_t so free the buffer */ 1194a6d42e7dSPeter Dunlap idm_buf_free(idm_buffer); 1195a6d42e7dSPeter Dunlap } 1196a6d42e7dSPeter Dunlap 1197a6d42e7dSPeter Dunlap return (NULL); 1198a6d42e7dSPeter Dunlap } 1199a6d42e7dSPeter Dunlap 1200a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1201a6d42e7dSPeter Dunlap static void 1202a6d42e7dSPeter Dunlap iscsit_dbuf_free(stmf_dbuf_store_t *ds, stmf_data_buf_t *dbuf) 1203a6d42e7dSPeter Dunlap { 1204a6d42e7dSPeter Dunlap iscsit_buf_t *ibuf = dbuf->db_port_private; 1205a6d42e7dSPeter Dunlap 1206a6d42e7dSPeter Dunlap if (ibuf->ibuf_is_immed) { 1207a6d42e7dSPeter Dunlap /* 1208a6d42e7dSPeter Dunlap * The iscsit_buf_t structure itself will be freed with its 1209a6d42e7dSPeter Dunlap * associated task. Here we just need to free the PDU that 1210a6d42e7dSPeter Dunlap * held the immediate data. 1211a6d42e7dSPeter Dunlap */ 1212a6d42e7dSPeter Dunlap idm_pdu_complete(ibuf->ibuf_immed_data_pdu, IDM_STATUS_SUCCESS); 1213a6d42e7dSPeter Dunlap ibuf->ibuf_immed_data_pdu = 0; 1214a6d42e7dSPeter Dunlap } else { 1215a6d42e7dSPeter Dunlap idm_buf_free(ibuf->ibuf_idm_buf); 1216a6d42e7dSPeter Dunlap stmf_free(dbuf); 1217a6d42e7dSPeter Dunlap } 1218a6d42e7dSPeter Dunlap } 1219a6d42e7dSPeter Dunlap 1220a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1221a6d42e7dSPeter Dunlap stmf_status_t 1222a6d42e7dSPeter Dunlap iscsit_xfer_scsi_data(scsi_task_t *task, stmf_data_buf_t *dbuf, 1223a6d42e7dSPeter Dunlap uint32_t ioflags) 1224a6d42e7dSPeter Dunlap { 1225a6d42e7dSPeter Dunlap iscsit_task_t *iscsit_task = task->task_port_private; 1226a6d42e7dSPeter Dunlap iscsit_buf_t *ibuf = dbuf->db_port_private; 1227a6d42e7dSPeter Dunlap int idm_rc; 1228a6d42e7dSPeter Dunlap 1229bf604c64SPeter Dunlap /* 1230bf604c64SPeter Dunlap * If we are aborting then we can ignore this request 1231bf604c64SPeter Dunlap */ 1232bf604c64SPeter Dunlap if (iscsit_task->it_stmf_abort) { 1233bf604c64SPeter Dunlap return (STMF_SUCCESS); 1234bf604c64SPeter Dunlap } 1235bf604c64SPeter Dunlap 1236a6d42e7dSPeter Dunlap /* 1237a6d42e7dSPeter Dunlap * If it's not immediate data then start the transfer 1238a6d42e7dSPeter Dunlap */ 1239a6d42e7dSPeter Dunlap ASSERT(ibuf->ibuf_is_immed == B_FALSE); 1240a6d42e7dSPeter Dunlap if (dbuf->db_flags & DB_DIRECTION_TO_RPORT) { 1241a6d42e7dSPeter Dunlap 1242a6d42e7dSPeter Dunlap /* 1243a6d42e7dSPeter Dunlap * IDM will call iscsit_build_hdr so lock now to serialize 1244a6d42e7dSPeter Dunlap * access to the SN values. We need to lock here to enforce 1245a6d42e7dSPeter Dunlap * lock ordering 1246a6d42e7dSPeter Dunlap */ 1247a6d42e7dSPeter Dunlap rw_enter(&iscsit_task->it_ict->ict_sess->ist_sn_rwlock, 1248a6d42e7dSPeter Dunlap RW_READER); 1249a6d42e7dSPeter Dunlap idm_rc = idm_buf_tx_to_ini(iscsit_task->it_idm_task, 1250a6d42e7dSPeter Dunlap ibuf->ibuf_idm_buf, dbuf->db_relative_offset, 1251a6d42e7dSPeter Dunlap dbuf->db_data_size, &iscsit_buf_xfer_cb, dbuf); 1252a6d42e7dSPeter Dunlap rw_exit(&iscsit_task->it_ict->ict_sess->ist_sn_rwlock); 1253a6d42e7dSPeter Dunlap 1254a6d42e7dSPeter Dunlap return (iscsit_idm_to_stmf(idm_rc)); 1255a6d42e7dSPeter Dunlap } else if (dbuf->db_flags & DB_DIRECTION_FROM_RPORT) { 1256a6d42e7dSPeter Dunlap /* Grab the SN lock (see comment above) */ 1257a6d42e7dSPeter Dunlap rw_enter(&iscsit_task->it_ict->ict_sess->ist_sn_rwlock, 1258a6d42e7dSPeter Dunlap RW_READER); 1259a6d42e7dSPeter Dunlap idm_rc = idm_buf_rx_from_ini(iscsit_task->it_idm_task, 1260a6d42e7dSPeter Dunlap ibuf->ibuf_idm_buf, dbuf->db_relative_offset, 1261a6d42e7dSPeter Dunlap dbuf->db_data_size, &iscsit_buf_xfer_cb, dbuf); 1262a6d42e7dSPeter Dunlap rw_exit(&iscsit_task->it_ict->ict_sess->ist_sn_rwlock); 1263a6d42e7dSPeter Dunlap 1264a6d42e7dSPeter Dunlap return (iscsit_idm_to_stmf(idm_rc)); 1265a6d42e7dSPeter Dunlap } 1266a6d42e7dSPeter Dunlap 1267a6d42e7dSPeter Dunlap /* What are we supposed to do if there is no direction? */ 1268a6d42e7dSPeter Dunlap return (STMF_INVALID_ARG); 1269a6d42e7dSPeter Dunlap } 1270a6d42e7dSPeter Dunlap 1271a6d42e7dSPeter Dunlap static void 1272a6d42e7dSPeter Dunlap iscsit_buf_xfer_cb(idm_buf_t *idb, idm_status_t status) 1273a6d42e7dSPeter Dunlap { 1274a6d42e7dSPeter Dunlap iscsit_task_t *itask = idb->idb_task_binding->idt_private; 1275a6d42e7dSPeter Dunlap stmf_data_buf_t *dbuf = idb->idb_cb_arg; 1276a6d42e7dSPeter Dunlap 1277a6d42e7dSPeter Dunlap dbuf->db_xfer_status = iscsit_idm_to_stmf(status); 1278a6d42e7dSPeter Dunlap 1279bf604c64SPeter Dunlap /* 1280bf604c64SPeter Dunlap * If the task has been aborted then we don't need to call STMF 1281bf604c64SPeter Dunlap */ 1282bf604c64SPeter Dunlap if (itask->it_stmf_abort) { 1283bf604c64SPeter Dunlap return; 1284bf604c64SPeter Dunlap } 1285bf604c64SPeter Dunlap 1286a6d42e7dSPeter Dunlap /* 1287a6d42e7dSPeter Dunlap * COMSTAR currently requires port providers to support 1288a6d42e7dSPeter Dunlap * the DB_SEND_STATUS_GOOD flag even if phase collapse is 1289a6d42e7dSPeter Dunlap * not supported. So we will roll our own... pretend we are 1290a6d42e7dSPeter Dunlap * COMSTAR and ask for a status PDU. 1291a6d42e7dSPeter Dunlap */ 1292a6d42e7dSPeter Dunlap if ((dbuf->db_flags & DB_SEND_STATUS_GOOD) && 1293a6d42e7dSPeter Dunlap status == IDM_STATUS_SUCCESS) { 1294a6d42e7dSPeter Dunlap /* 1295a6d42e7dSPeter Dunlap * If iscsit_send_scsi_status succeeds then the TX PDU 1296a6d42e7dSPeter Dunlap * callback will call stmf_send_status_done and set 1297a6d42e7dSPeter Dunlap * STMF_IOF_LPORT_DONE. Consequently we don't need 1298a6d42e7dSPeter Dunlap * to call stmf_data_xfer_done in that case. We 1299a6d42e7dSPeter Dunlap * still need to call it if we get a failure. 1300a6d42e7dSPeter Dunlap * 1301bf604c64SPeter Dunlap * To elaborate on this some more, upon successful 1302bf604c64SPeter Dunlap * return from iscsit_send_scsi_status it's possible 1303bf604c64SPeter Dunlap * that itask and idb have been freed and are no 1304bf604c64SPeter Dunlap * longer valid. 1305a6d42e7dSPeter Dunlap */ 1306a6d42e7dSPeter Dunlap if (iscsit_send_scsi_status(itask->it_stmf_task, 0) 1307*63528ae4SJames Moore != STMF_SUCCESS) { 1308a6d42e7dSPeter Dunlap /* Failed to send status */ 1309a6d42e7dSPeter Dunlap dbuf->db_xfer_status = STMF_FAILURE; 1310a6d42e7dSPeter Dunlap stmf_data_xfer_done(itask->it_stmf_task, dbuf, 1311a6d42e7dSPeter Dunlap STMF_IOF_LPORT_DONE); 1312a6d42e7dSPeter Dunlap } 1313a6d42e7dSPeter Dunlap } else { 1314a6d42e7dSPeter Dunlap stmf_data_xfer_done(itask->it_stmf_task, dbuf, 0); 1315a6d42e7dSPeter Dunlap } 1316a6d42e7dSPeter Dunlap } 1317a6d42e7dSPeter Dunlap 1318bf604c64SPeter Dunlap 1319a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1320a6d42e7dSPeter Dunlap stmf_status_t 1321a6d42e7dSPeter Dunlap iscsit_send_scsi_status(scsi_task_t *task, uint32_t ioflags) 1322a6d42e7dSPeter Dunlap { 1323a6d42e7dSPeter Dunlap iscsit_task_t *itask = task->task_port_private; 1324a6d42e7dSPeter Dunlap iscsi_scsi_rsp_hdr_t *rsp; 1325a6d42e7dSPeter Dunlap idm_pdu_t *pdu; 1326a6d42e7dSPeter Dunlap int resp_datalen; 1327a6d42e7dSPeter Dunlap 1328a6d42e7dSPeter Dunlap /* 1329a6d42e7dSPeter Dunlap * If this task is aborted then we don't need to respond. 1330a6d42e7dSPeter Dunlap */ 1331a6d42e7dSPeter Dunlap if (itask->it_stmf_abort) { 1332a6d42e7dSPeter Dunlap return (STMF_SUCCESS); 1333a6d42e7dSPeter Dunlap } 1334a6d42e7dSPeter Dunlap 1335a6d42e7dSPeter Dunlap /* 1336a6d42e7dSPeter Dunlap * If this is a task management status, handle it elsewhere. 1337a6d42e7dSPeter Dunlap */ 1338a6d42e7dSPeter Dunlap if (task->task_mgmt_function != TM_NONE) { 1339a6d42e7dSPeter Dunlap /* 1340a6d42e7dSPeter Dunlap * Don't wait for the PDU completion to tell STMF 1341a6d42e7dSPeter Dunlap * the task is done -- it doesn't really matter and 1342a6d42e7dSPeter Dunlap * it makes life complicated if STMF later asks us to 1343a6d42e7dSPeter Dunlap * abort the request and we don't know whether the 1344a6d42e7dSPeter Dunlap * status has been sent or not. 1345a6d42e7dSPeter Dunlap */ 1346a6d42e7dSPeter Dunlap itask->it_tm_responded = B_TRUE; 1347a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(itask->it_tm_pdu, 1348a6d42e7dSPeter Dunlap (task->task_completion_status == STMF_SUCCESS) ? 1349a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_COMPLETE : SCSI_TCP_TM_RESP_FUNC_NOT_SUPP); 1350a6d42e7dSPeter Dunlap stmf_send_status_done(task, STMF_SUCCESS, 1351a6d42e7dSPeter Dunlap STMF_IOF_LPORT_DONE); 1352a6d42e7dSPeter Dunlap return (STMF_SUCCESS); 1353a6d42e7dSPeter Dunlap } 1354a6d42e7dSPeter Dunlap 1355a6d42e7dSPeter Dunlap mutex_enter(&itask->it_idm_task->idt_mutex); 1356a6d42e7dSPeter Dunlap if ((itask->it_idm_task->idt_state == TASK_ACTIVE) && 1357a6d42e7dSPeter Dunlap (task->task_completion_status == STMF_SUCCESS) && 1358a6d42e7dSPeter Dunlap (task->task_sense_length == 0) && 1359a6d42e7dSPeter Dunlap (task->task_resid == 0)) { 1360a6d42e7dSPeter Dunlap itask->it_idm_task->idt_state = TASK_COMPLETE; 1361a6d42e7dSPeter Dunlap /* PDU callback releases task hold */ 1362a6d42e7dSPeter Dunlap idm_task_hold(itask->it_idm_task); 1363a6d42e7dSPeter Dunlap mutex_exit(&itask->it_idm_task->idt_mutex); 1364a6d42e7dSPeter Dunlap /* 1365a6d42e7dSPeter Dunlap * Fast path. Cached status PDU's are already 1366a6d42e7dSPeter Dunlap * initialized. We just need to fill in 1367a6d42e7dSPeter Dunlap * connection and task information. 1368a6d42e7dSPeter Dunlap */ 1369a6d42e7dSPeter Dunlap pdu = kmem_cache_alloc(iscsit_status_pdu_cache, KM_SLEEP); 1370a6d42e7dSPeter Dunlap pdu->isp_ic = itask->it_ict->ict_ic; 1371a6d42e7dSPeter Dunlap pdu->isp_private = itask; 1372a6d42e7dSPeter Dunlap 1373a6d42e7dSPeter Dunlap rsp = (iscsi_scsi_rsp_hdr_t *)pdu->isp_hdr; 1374a6d42e7dSPeter Dunlap rsp->itt = itask->it_itt; 1375a6d42e7dSPeter Dunlap rsp->cmd_status = task->task_scsi_status; 1376a6d42e7dSPeter Dunlap iscsit_pdu_tx(pdu); 1377a6d42e7dSPeter Dunlap return (STMF_SUCCESS); 1378a6d42e7dSPeter Dunlap } else { 1379a6d42e7dSPeter Dunlap if (itask->it_idm_task->idt_state != TASK_ACTIVE) { 1380a6d42e7dSPeter Dunlap mutex_exit(&itask->it_idm_task->idt_mutex); 1381*63528ae4SJames Moore return (STMF_FAILURE); 1382a6d42e7dSPeter Dunlap } 1383a6d42e7dSPeter Dunlap itask->it_idm_task->idt_state = TASK_COMPLETE; 1384a6d42e7dSPeter Dunlap /* PDU callback releases task hold */ 1385a6d42e7dSPeter Dunlap idm_task_hold(itask->it_idm_task); 1386a6d42e7dSPeter Dunlap mutex_exit(&itask->it_idm_task->idt_mutex); 1387a6d42e7dSPeter Dunlap 1388a6d42e7dSPeter Dunlap resp_datalen = (task->task_sense_length == 0) ? 0 : 1389a6d42e7dSPeter Dunlap (task->task_sense_length + sizeof (uint16_t)); 1390a6d42e7dSPeter Dunlap 1391a6d42e7dSPeter Dunlap pdu = idm_pdu_alloc(sizeof (iscsi_hdr_t), resp_datalen); 1392a6d42e7dSPeter Dunlap idm_pdu_init(pdu, itask->it_ict->ict_ic, itask, 1393a6d42e7dSPeter Dunlap iscsit_send_status_done); 1394a6d42e7dSPeter Dunlap 1395a6d42e7dSPeter Dunlap rsp = (iscsi_scsi_rsp_hdr_t *)pdu->isp_hdr; 1396a6d42e7dSPeter Dunlap bzero(rsp, sizeof (*rsp)); 1397a6d42e7dSPeter Dunlap rsp->opcode = ISCSI_OP_SCSI_RSP; 1398a6d42e7dSPeter Dunlap 1399a6d42e7dSPeter Dunlap rsp->flags = ISCSI_FLAG_FINAL; 1400a6d42e7dSPeter Dunlap if (task->task_status_ctrl & TASK_SCTRL_OVER) { 1401a6d42e7dSPeter Dunlap rsp->flags |= ISCSI_FLAG_CMD_OVERFLOW; 1402a6d42e7dSPeter Dunlap } else if (task->task_status_ctrl & TASK_SCTRL_UNDER) { 1403a6d42e7dSPeter Dunlap rsp->flags |= ISCSI_FLAG_CMD_UNDERFLOW; 1404a6d42e7dSPeter Dunlap } 1405a6d42e7dSPeter Dunlap 1406a6d42e7dSPeter Dunlap rsp->bi_residual_count = 0; 1407a6d42e7dSPeter Dunlap rsp->residual_count = htonl(task->task_resid); 1408a6d42e7dSPeter Dunlap rsp->itt = itask->it_itt; 1409a6d42e7dSPeter Dunlap rsp->response = ISCSI_STATUS_CMD_COMPLETED; 1410a6d42e7dSPeter Dunlap rsp->cmd_status = task->task_scsi_status; 1411a6d42e7dSPeter Dunlap if (task->task_sense_length != 0) { 1412a6d42e7dSPeter Dunlap /* 1413a6d42e7dSPeter Dunlap * Add a byte to provide the sense length in 1414a6d42e7dSPeter Dunlap * the response 1415a6d42e7dSPeter Dunlap */ 1416a6d42e7dSPeter Dunlap *(uint16_t *)((void *)pdu->isp_data) = 1417a6d42e7dSPeter Dunlap htons(task->task_sense_length); 1418a6d42e7dSPeter Dunlap bcopy(task->task_sense_data, 1419a6d42e7dSPeter Dunlap (uint8_t *)pdu->isp_data + 1420a6d42e7dSPeter Dunlap sizeof (uint16_t), 1421a6d42e7dSPeter Dunlap task->task_sense_length); 1422a6d42e7dSPeter Dunlap hton24(rsp->dlength, resp_datalen); 1423a6d42e7dSPeter Dunlap } 1424a6d42e7dSPeter Dunlap 1425a6d42e7dSPeter Dunlap iscsit_pdu_tx(pdu); 1426a6d42e7dSPeter Dunlap 1427a6d42e7dSPeter Dunlap return (STMF_SUCCESS); 1428a6d42e7dSPeter Dunlap } 1429a6d42e7dSPeter Dunlap } 1430a6d42e7dSPeter Dunlap 1431a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1432a6d42e7dSPeter Dunlap static void 1433a6d42e7dSPeter Dunlap iscsit_send_good_status_done(idm_pdu_t *pdu, idm_status_t status) 1434a6d42e7dSPeter Dunlap { 1435bf604c64SPeter Dunlap iscsit_task_t *itask; 1436bf604c64SPeter Dunlap boolean_t aborted; 1437a6d42e7dSPeter Dunlap 1438a6d42e7dSPeter Dunlap itask = pdu->isp_private; 1439bf604c64SPeter Dunlap aborted = itask->it_stmf_abort; 1440bf604c64SPeter Dunlap 1441bf604c64SPeter Dunlap /* 1442bf604c64SPeter Dunlap * After releasing the hold the task may be freed at any time so 1443bf604c64SPeter Dunlap * don't touch it. 1444bf604c64SPeter Dunlap */ 1445a6d42e7dSPeter Dunlap idm_task_rele(itask->it_idm_task); 1446bf604c64SPeter Dunlap if (!aborted) { 1447bf604c64SPeter Dunlap stmf_send_status_done(itask->it_stmf_task, 1448bf604c64SPeter Dunlap iscsit_idm_to_stmf(pdu->isp_status), STMF_IOF_LPORT_DONE); 1449bf604c64SPeter Dunlap } 1450a6d42e7dSPeter Dunlap kmem_cache_free(iscsit_status_pdu_cache, pdu); 1451a6d42e7dSPeter Dunlap } 1452a6d42e7dSPeter Dunlap 1453a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1454a6d42e7dSPeter Dunlap static void 1455a6d42e7dSPeter Dunlap iscsit_send_status_done(idm_pdu_t *pdu, idm_status_t status) 1456a6d42e7dSPeter Dunlap { 1457a6d42e7dSPeter Dunlap iscsit_task_t *itask; 1458bf604c64SPeter Dunlap boolean_t aborted; 1459a6d42e7dSPeter Dunlap 1460a6d42e7dSPeter Dunlap itask = pdu->isp_private; 1461bf604c64SPeter Dunlap aborted = itask->it_stmf_abort; 1462bf604c64SPeter Dunlap 1463bf604c64SPeter Dunlap /* 1464bf604c64SPeter Dunlap * After releasing the hold the task may be freed at any time so 1465bf604c64SPeter Dunlap * don't touch it. 1466bf604c64SPeter Dunlap */ 1467a6d42e7dSPeter Dunlap idm_task_rele(itask->it_idm_task); 1468bf604c64SPeter Dunlap if (!aborted) { 1469bf604c64SPeter Dunlap stmf_send_status_done(itask->it_stmf_task, 1470bf604c64SPeter Dunlap iscsit_idm_to_stmf(pdu->isp_status), STMF_IOF_LPORT_DONE); 1471bf604c64SPeter Dunlap } 1472a6d42e7dSPeter Dunlap idm_pdu_free(pdu); 1473a6d42e7dSPeter Dunlap } 1474a6d42e7dSPeter Dunlap 1475a6d42e7dSPeter Dunlap 1476a6d42e7dSPeter Dunlap void 1477a6d42e7dSPeter Dunlap iscsit_lport_task_free(scsi_task_t *task) 1478a6d42e7dSPeter Dunlap { 1479a6d42e7dSPeter Dunlap iscsit_task_t *itask = task->task_port_private; 1480a6d42e7dSPeter Dunlap 1481a6d42e7dSPeter Dunlap /* We only call idm_task_start for regular tasks, not task management */ 1482a6d42e7dSPeter Dunlap if (task->task_mgmt_function == TM_NONE) { 1483a6d42e7dSPeter Dunlap idm_task_done(itask->it_idm_task); 1484a6d42e7dSPeter Dunlap iscsit_task_free(itask); 1485a6d42e7dSPeter Dunlap return; 1486a6d42e7dSPeter Dunlap } else { 1487a6d42e7dSPeter Dunlap iscsit_tm_task_free(itask); 1488a6d42e7dSPeter Dunlap } 1489a6d42e7dSPeter Dunlap } 1490a6d42e7dSPeter Dunlap 1491a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1492a6d42e7dSPeter Dunlap stmf_status_t 1493a6d42e7dSPeter Dunlap iscsit_abort(stmf_local_port_t *lport, int abort_cmd, void *arg, uint32_t flags) 1494a6d42e7dSPeter Dunlap { 1495a6d42e7dSPeter Dunlap scsi_task_t *st = (scsi_task_t *)arg; 1496a6d42e7dSPeter Dunlap iscsit_task_t *iscsit_task; 1497a6d42e7dSPeter Dunlap idm_task_t *idt; 1498a6d42e7dSPeter Dunlap 1499a6d42e7dSPeter Dunlap /* 1500a6d42e7dSPeter Dunlap * If this is a task management request then there's really not much to 1501a6d42e7dSPeter Dunlap * do. 1502a6d42e7dSPeter Dunlap */ 1503a6d42e7dSPeter Dunlap if (st->task_mgmt_function != TM_NONE) { 1504a6d42e7dSPeter Dunlap return (STMF_ABORT_SUCCESS); 1505a6d42e7dSPeter Dunlap } 1506a6d42e7dSPeter Dunlap 1507a6d42e7dSPeter Dunlap /* 1508a6d42e7dSPeter Dunlap * Regular task, start cleaning up 1509a6d42e7dSPeter Dunlap */ 1510a6d42e7dSPeter Dunlap iscsit_task = st->task_port_private; 1511a6d42e7dSPeter Dunlap idt = iscsit_task->it_idm_task; 1512a6d42e7dSPeter Dunlap mutex_enter(&iscsit_task->it_mutex); 1513a6d42e7dSPeter Dunlap iscsit_task->it_stmf_abort = B_TRUE; 1514a6d42e7dSPeter Dunlap if (iscsit_task->it_aborted) { 1515a6d42e7dSPeter Dunlap mutex_exit(&iscsit_task->it_mutex); 1516a6d42e7dSPeter Dunlap /* 1517a6d42e7dSPeter Dunlap * STMF specification is wrong... says to return 1518a6d42e7dSPeter Dunlap * STMF_ABORTED, the code actually looks for 1519a6d42e7dSPeter Dunlap * STMF_ABORT_SUCCESS. 1520a6d42e7dSPeter Dunlap */ 1521a6d42e7dSPeter Dunlap return (STMF_ABORT_SUCCESS); 1522a6d42e7dSPeter Dunlap } else { 1523a6d42e7dSPeter Dunlap mutex_exit(&iscsit_task->it_mutex); 1524a6d42e7dSPeter Dunlap /* 1525a6d42e7dSPeter Dunlap * Call IDM to abort the task. Due to a variety of 1526a6d42e7dSPeter Dunlap * circumstances the task may already be in the process of 1527a6d42e7dSPeter Dunlap * aborting. 1528a6d42e7dSPeter Dunlap * We'll let IDM worry about rationalizing all that except 1529a6d42e7dSPeter Dunlap * for one particular instance. If the state of the task 1530a6d42e7dSPeter Dunlap * is TASK_COMPLETE, we need to indicate to the framework 1531a6d42e7dSPeter Dunlap * that we are in fact done. This typically happens with 1532a6d42e7dSPeter Dunlap * framework-initiated task management type requests 1533a6d42e7dSPeter Dunlap * (e.g. abort task). 1534a6d42e7dSPeter Dunlap */ 1535a6d42e7dSPeter Dunlap if (idt->idt_state == TASK_COMPLETE) { 1536a6d42e7dSPeter Dunlap idm_refcnt_wait_ref(&idt->idt_refcnt); 1537a6d42e7dSPeter Dunlap return (STMF_ABORT_SUCCESS); 1538a6d42e7dSPeter Dunlap } else { 1539a6d42e7dSPeter Dunlap idm_task_abort(idt->idt_ic, idt, AT_TASK_MGMT_ABORT); 1540a6d42e7dSPeter Dunlap return (STMF_SUCCESS); 1541a6d42e7dSPeter Dunlap } 1542a6d42e7dSPeter Dunlap } 1543a6d42e7dSPeter Dunlap 1544a6d42e7dSPeter Dunlap /*NOTREACHED*/ 1545a6d42e7dSPeter Dunlap } 1546a6d42e7dSPeter Dunlap 1547a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1548a6d42e7dSPeter Dunlap void 1549a6d42e7dSPeter Dunlap iscsit_ctl(stmf_local_port_t *lport, int cmd, void *arg) 1550a6d42e7dSPeter Dunlap { 1551a6d42e7dSPeter Dunlap iscsit_tgt_t *iscsit_tgt; 1552a6d42e7dSPeter Dunlap 1553a6d42e7dSPeter Dunlap ASSERT((cmd == STMF_CMD_LPORT_ONLINE) || 1554a6d42e7dSPeter Dunlap (cmd == STMF_ACK_LPORT_ONLINE_COMPLETE) || 1555a6d42e7dSPeter Dunlap (cmd == STMF_CMD_LPORT_OFFLINE) || 1556a6d42e7dSPeter Dunlap (cmd == STMF_ACK_LPORT_OFFLINE_COMPLETE)); 1557a6d42e7dSPeter Dunlap 1558a6d42e7dSPeter Dunlap iscsit_tgt = (iscsit_tgt_t *)lport->lport_port_private; 1559a6d42e7dSPeter Dunlap 1560a6d42e7dSPeter Dunlap switch (cmd) { 1561a6d42e7dSPeter Dunlap case STMF_CMD_LPORT_ONLINE: 1562a6d42e7dSPeter Dunlap iscsit_tgt_sm_event(iscsit_tgt, TE_STMF_ONLINE_REQ); 1563a6d42e7dSPeter Dunlap break; 1564a6d42e7dSPeter Dunlap case STMF_CMD_LPORT_OFFLINE: 1565a6d42e7dSPeter Dunlap iscsit_tgt_sm_event(iscsit_tgt, TE_STMF_OFFLINE_REQ); 1566a6d42e7dSPeter Dunlap break; 1567a6d42e7dSPeter Dunlap case STMF_ACK_LPORT_ONLINE_COMPLETE: 1568a6d42e7dSPeter Dunlap iscsit_tgt_sm_event(iscsit_tgt, TE_STMF_ONLINE_COMPLETE_ACK); 1569a6d42e7dSPeter Dunlap break; 1570a6d42e7dSPeter Dunlap case STMF_ACK_LPORT_OFFLINE_COMPLETE: 1571a6d42e7dSPeter Dunlap iscsit_tgt_sm_event(iscsit_tgt, TE_STMF_OFFLINE_COMPLETE_ACK); 1572a6d42e7dSPeter Dunlap break; 1573a6d42e7dSPeter Dunlap 1574a6d42e7dSPeter Dunlap default: 1575a6d42e7dSPeter Dunlap break; 1576a6d42e7dSPeter Dunlap } 1577a6d42e7dSPeter Dunlap } 1578a6d42e7dSPeter Dunlap 1579a6d42e7dSPeter Dunlap static stmf_status_t 1580a6d42e7dSPeter Dunlap iscsit_idm_to_stmf(idm_status_t idmrc) 1581a6d42e7dSPeter Dunlap { 1582a6d42e7dSPeter Dunlap switch (idmrc) { 1583a6d42e7dSPeter Dunlap case IDM_STATUS_SUCCESS: 1584a6d42e7dSPeter Dunlap return (STMF_SUCCESS); 1585a6d42e7dSPeter Dunlap default: 1586a6d42e7dSPeter Dunlap return (STMF_FAILURE); 1587a6d42e7dSPeter Dunlap } 1588a6d42e7dSPeter Dunlap /*NOTREACHED*/ 1589a6d42e7dSPeter Dunlap } 1590a6d42e7dSPeter Dunlap 1591a6d42e7dSPeter Dunlap 1592a6d42e7dSPeter Dunlap /* 1593a6d42e7dSPeter Dunlap * ISCSI protocol 1594a6d42e7dSPeter Dunlap */ 1595a6d42e7dSPeter Dunlap 1596a6d42e7dSPeter Dunlap void 1597a6d42e7dSPeter Dunlap iscsit_op_scsi_cmd(idm_conn_t *ic, idm_pdu_t *rx_pdu) 1598a6d42e7dSPeter Dunlap { 1599a6d42e7dSPeter Dunlap iscsit_conn_t *ict; 1600a6d42e7dSPeter Dunlap iscsit_task_t *itask; 1601a6d42e7dSPeter Dunlap scsi_task_t *task; 1602a6d42e7dSPeter Dunlap iscsit_buf_t *ibuf; 1603a6d42e7dSPeter Dunlap iscsi_scsi_cmd_hdr_t *iscsi_scsi = 1604a6d42e7dSPeter Dunlap (iscsi_scsi_cmd_hdr_t *)rx_pdu->isp_hdr; 1605a6d42e7dSPeter Dunlap iscsi_addl_hdr_t *ahs_hdr; 1606a6d42e7dSPeter Dunlap uint16_t addl_cdb_len = 0; 1607a6d42e7dSPeter Dunlap 1608a6d42e7dSPeter Dunlap ict = ic->ic_handle; 1609a6d42e7dSPeter Dunlap 1610a6d42e7dSPeter Dunlap itask = iscsit_task_alloc(ict); 1611a6d42e7dSPeter Dunlap if (itask == NULL) { 1612a6d42e7dSPeter Dunlap iscsit_send_direct_scsi_resp(ict, rx_pdu, 1613a6d42e7dSPeter Dunlap ISCSI_STATUS_CMD_COMPLETED, STATUS_BUSY); 1614a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 1615a6d42e7dSPeter Dunlap return; 1616a6d42e7dSPeter Dunlap } 1617a6d42e7dSPeter Dunlap 1618a6d42e7dSPeter Dunlap /* Finish processing request */ 1619a6d42e7dSPeter Dunlap iscsit_set_cmdsn(ict, rx_pdu); 1620a6d42e7dSPeter Dunlap 1621a6d42e7dSPeter Dunlap /* 1622a6d42e7dSPeter Dunlap * Note CmdSN and ITT in task. IDM will have already validated this 1623a6d42e7dSPeter Dunlap * request against the connection state so we don't need to check 1624a6d42e7dSPeter Dunlap * that (the connection may have changed state in the meantime but 1625a6d42e7dSPeter Dunlap * we will catch that when we try to send a response) 1626a6d42e7dSPeter Dunlap */ 1627a6d42e7dSPeter Dunlap itask->it_cmdsn = ntohl(iscsi_scsi->cmdsn); 1628a6d42e7dSPeter Dunlap itask->it_itt = iscsi_scsi->itt; 1629a6d42e7dSPeter Dunlap 1630a6d42e7dSPeter Dunlap /* 1631a6d42e7dSPeter Dunlap * Check for extended CDB AHS 1632a6d42e7dSPeter Dunlap */ 1633a6d42e7dSPeter Dunlap if (iscsi_scsi->hlength > 0) { 1634a6d42e7dSPeter Dunlap ahs_hdr = (iscsi_addl_hdr_t *)iscsi_scsi; 1635a6d42e7dSPeter Dunlap addl_cdb_len = ((ahs_hdr->ahs_hlen_hi << 8) | 1636a6d42e7dSPeter Dunlap ahs_hdr->ahs_hlen_lo) - 1; /* Adjust for reserved byte */ 1637a6d42e7dSPeter Dunlap if (((addl_cdb_len + 4) / sizeof (uint32_t)) > 1638a6d42e7dSPeter Dunlap iscsi_scsi->hlength) { 1639a6d42e7dSPeter Dunlap /* Mangled header info, drop it */ 1640a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 1641a6d42e7dSPeter Dunlap return; 1642a6d42e7dSPeter Dunlap } 1643a6d42e7dSPeter Dunlap } 1644a6d42e7dSPeter Dunlap 1645a6d42e7dSPeter Dunlap ict = rx_pdu->isp_ic->ic_handle; /* IDM client private */ 1646a6d42e7dSPeter Dunlap 1647a6d42e7dSPeter Dunlap itask->it_stmf_task = stmf_task_alloc( 1648a6d42e7dSPeter Dunlap itask->it_ict->ict_sess->ist_lport, 1649a6d42e7dSPeter Dunlap itask->it_ict->ict_sess->ist_stmf_sess, iscsi_scsi->lun, 1650a6d42e7dSPeter Dunlap 16 + addl_cdb_len, 0); 1651a6d42e7dSPeter Dunlap if (itask->it_stmf_task == NULL) { 1652a6d42e7dSPeter Dunlap /* 1653a6d42e7dSPeter Dunlap * Either stmf really couldn't get memory for a task or, 1654a6d42e7dSPeter Dunlap * more likely, the LU is currently in reset. Either way 1655a6d42e7dSPeter Dunlap * we have no choice but to fail the request. 1656a6d42e7dSPeter Dunlap */ 1657a6d42e7dSPeter Dunlap iscsit_task_free(itask); 1658a6d42e7dSPeter Dunlap iscsit_send_direct_scsi_resp(ict, rx_pdu, 1659a6d42e7dSPeter Dunlap ISCSI_STATUS_CMD_COMPLETED, STATUS_BUSY); 1660a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_FAIL); 1661a6d42e7dSPeter Dunlap return; 1662a6d42e7dSPeter Dunlap } 1663a6d42e7dSPeter Dunlap 1664a6d42e7dSPeter Dunlap task = itask->it_stmf_task; 1665a6d42e7dSPeter Dunlap task->task_port_private = itask; 1666a6d42e7dSPeter Dunlap 1667a6d42e7dSPeter Dunlap bcopy(iscsi_scsi->lun, task->task_lun_no, sizeof (task->task_lun_no)); 1668a6d42e7dSPeter Dunlap 1669a6d42e7dSPeter Dunlap /* 1670a6d42e7dSPeter Dunlap * iSCSI and Comstar use the same values. Should we rely on this 1671a6d42e7dSPeter Dunlap * or translate them bit-wise? 1672a6d42e7dSPeter Dunlap */ 1673a6d42e7dSPeter Dunlap 1674a6d42e7dSPeter Dunlap task->task_flags = 1675a6d42e7dSPeter Dunlap (((iscsi_scsi->flags & ISCSI_FLAG_CMD_READ) ? TF_READ_DATA : 0) | 1676a6d42e7dSPeter Dunlap ((iscsi_scsi->flags & ISCSI_FLAG_CMD_WRITE) ? TF_WRITE_DATA : 0) | 1677a6d42e7dSPeter Dunlap ((rx_pdu->isp_datalen == 0) ? 0 : TF_INITIAL_BURST)); 1678a6d42e7dSPeter Dunlap 1679a6d42e7dSPeter Dunlap switch (iscsi_scsi->flags & ISCSI_FLAG_CMD_ATTR_MASK) { 1680a6d42e7dSPeter Dunlap case ISCSI_ATTR_UNTAGGED: 1681a6d42e7dSPeter Dunlap break; 1682a6d42e7dSPeter Dunlap case ISCSI_ATTR_SIMPLE: 1683a6d42e7dSPeter Dunlap task->task_additional_flags |= TF_ATTR_SIMPLE_QUEUE; 1684a6d42e7dSPeter Dunlap break; 1685a6d42e7dSPeter Dunlap case ISCSI_ATTR_ORDERED: 1686a6d42e7dSPeter Dunlap task->task_additional_flags |= TF_ATTR_ORDERED_QUEUE; 1687a6d42e7dSPeter Dunlap break; 1688a6d42e7dSPeter Dunlap case ISCSI_ATTR_HEAD_OF_QUEUE: 1689a6d42e7dSPeter Dunlap task->task_additional_flags |= TF_ATTR_HEAD_OF_QUEUE; 1690a6d42e7dSPeter Dunlap break; 1691a6d42e7dSPeter Dunlap case ISCSI_ATTR_ACA: 1692a6d42e7dSPeter Dunlap task->task_additional_flags |= TF_ATTR_ACA; 1693a6d42e7dSPeter Dunlap break; 1694a6d42e7dSPeter Dunlap default: 1695a6d42e7dSPeter Dunlap /* Protocol error but just take it, treat as untagged */ 1696a6d42e7dSPeter Dunlap break; 1697a6d42e7dSPeter Dunlap } 1698a6d42e7dSPeter Dunlap 1699a6d42e7dSPeter Dunlap 1700a6d42e7dSPeter Dunlap task->task_additional_flags = 0; 1701a6d42e7dSPeter Dunlap task->task_priority = 0; 1702a6d42e7dSPeter Dunlap task->task_mgmt_function = TM_NONE; 1703a6d42e7dSPeter Dunlap 1704a6d42e7dSPeter Dunlap /* 1705a6d42e7dSPeter Dunlap * This "task_max_nbufs" doesn't map well to BIDI. We probably need 1706a6d42e7dSPeter Dunlap * parameter for each direction. "MaxOutstandingR2T" may very well 1707a6d42e7dSPeter Dunlap * be set to one which could prevent us from doing simultaneous 1708a6d42e7dSPeter Dunlap * transfers in each direction. 1709a6d42e7dSPeter Dunlap */ 1710a6d42e7dSPeter Dunlap task->task_max_nbufs = (iscsi_scsi->flags & ISCSI_FLAG_CMD_WRITE) ? 1711a6d42e7dSPeter Dunlap ict->ict_op.op_max_outstanding_r2t : STMF_BUFS_MAX; 1712a6d42e7dSPeter Dunlap task->task_cmd_seq_no = ntohl(iscsi_scsi->itt); 1713a6d42e7dSPeter Dunlap task->task_expected_xfer_length = ntohl(iscsi_scsi->data_length); 1714a6d42e7dSPeter Dunlap 1715a6d42e7dSPeter Dunlap /* Copy CDB */ 1716a6d42e7dSPeter Dunlap bcopy(iscsi_scsi->scb, task->task_cdb, 16); 1717a6d42e7dSPeter Dunlap if (addl_cdb_len > 0) { 1718a6d42e7dSPeter Dunlap bcopy(ahs_hdr->ahs_extscb, task->task_cdb + 16, addl_cdb_len); 1719a6d42e7dSPeter Dunlap } 1720a6d42e7dSPeter Dunlap 1721a6d42e7dSPeter Dunlap /* 1722a6d42e7dSPeter Dunlap * Copy the transport header into the task handle from the PDU 1723a6d42e7dSPeter Dunlap * handle. The transport header describes this task's remote tagged 1724a6d42e7dSPeter Dunlap * buffer. 1725a6d42e7dSPeter Dunlap */ 1726a6d42e7dSPeter Dunlap if (rx_pdu->isp_transport_hdrlen != 0) { 1727a6d42e7dSPeter Dunlap bcopy(rx_pdu->isp_transport_hdr, 1728a6d42e7dSPeter Dunlap itask->it_idm_task->idt_transport_hdr, 1729a6d42e7dSPeter Dunlap rx_pdu->isp_transport_hdrlen); 1730a6d42e7dSPeter Dunlap } 1731a6d42e7dSPeter Dunlap 1732a6d42e7dSPeter Dunlap /* 1733a6d42e7dSPeter Dunlap * Tell IDM about our new active task 1734a6d42e7dSPeter Dunlap */ 1735a6d42e7dSPeter Dunlap idm_task_start(itask->it_idm_task, (uintptr_t)itask->it_itt); 1736a6d42e7dSPeter Dunlap 1737a6d42e7dSPeter Dunlap /* 1738a6d42e7dSPeter Dunlap * If we have any immediate data then setup the immediate buffer 1739a6d42e7dSPeter Dunlap * context that comes with the task 1740a6d42e7dSPeter Dunlap */ 1741a6d42e7dSPeter Dunlap if (rx_pdu->isp_datalen) { 1742a6d42e7dSPeter Dunlap ibuf = itask->it_immed_data; 1743a6d42e7dSPeter Dunlap ibuf->ibuf_immed_data_pdu = rx_pdu; 1744a6d42e7dSPeter Dunlap ibuf->ibuf_stmf_buf->db_data_size = rx_pdu->isp_datalen; 1745a6d42e7dSPeter Dunlap ibuf->ibuf_stmf_buf->db_buf_size = rx_pdu->isp_datalen; 1746a6d42e7dSPeter Dunlap ibuf->ibuf_stmf_buf->db_relative_offset = 0; 1747a6d42e7dSPeter Dunlap ibuf->ibuf_stmf_buf->db_sglist[0].seg_length = 1748a6d42e7dSPeter Dunlap rx_pdu->isp_datalen; 1749a6d42e7dSPeter Dunlap ibuf->ibuf_stmf_buf->db_sglist[0].seg_addr = rx_pdu->isp_data; 1750a6d42e7dSPeter Dunlap 1751a6d42e7dSPeter Dunlap stmf_post_task(task, ibuf->ibuf_stmf_buf); 1752a6d42e7dSPeter Dunlap } else { 1753a6d42e7dSPeter Dunlap stmf_post_task(task, NULL); 1754a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 1755a6d42e7dSPeter Dunlap } 1756a6d42e7dSPeter Dunlap } 1757a6d42e7dSPeter Dunlap 1758a6d42e7dSPeter Dunlap /*ARGSUSED*/ 1759a6d42e7dSPeter Dunlap void 1760a6d42e7dSPeter Dunlap iscsit_deferred_dispatch(idm_pdu_t *rx_pdu) 1761a6d42e7dSPeter Dunlap { 1762a6d42e7dSPeter Dunlap iscsit_conn_t *ict = rx_pdu->isp_ic->ic_handle; 1763a6d42e7dSPeter Dunlap 1764a6d42e7dSPeter Dunlap /* 1765a6d42e7dSPeter Dunlap * If the connection has been lost then ignore new PDU's 1766a6d42e7dSPeter Dunlap */ 1767a6d42e7dSPeter Dunlap mutex_enter(&ict->ict_mutex); 1768a6d42e7dSPeter Dunlap if (ict->ict_lost) { 1769a6d42e7dSPeter Dunlap mutex_exit(&ict->ict_mutex); 1770a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_FAIL); 1771a6d42e7dSPeter Dunlap return; 1772a6d42e7dSPeter Dunlap } 1773a6d42e7dSPeter Dunlap 1774a6d42e7dSPeter Dunlap /* 1775a6d42e7dSPeter Dunlap * Grab a hold on the connection to prevent it from going away 1776a6d42e7dSPeter Dunlap * between now and when the taskq function is called. 1777a6d42e7dSPeter Dunlap */ 1778a6d42e7dSPeter Dunlap iscsit_conn_dispatch_hold(ict); 1779a6d42e7dSPeter Dunlap mutex_exit(&ict->ict_mutex); 1780a6d42e7dSPeter Dunlap 1781a6d42e7dSPeter Dunlap if (taskq_dispatch(iscsit_global.global_dispatch_taskq, 1782a6d42e7dSPeter Dunlap iscsit_deferred, rx_pdu, DDI_NOSLEEP) == NULL) { 1783a6d42e7dSPeter Dunlap /* 1784a6d42e7dSPeter Dunlap * In the unlikely scenario that we couldn't get the resources 1785a6d42e7dSPeter Dunlap * to dispatch the PDU then just drop it. 1786a6d42e7dSPeter Dunlap */ 1787a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_FAIL); 1788a6d42e7dSPeter Dunlap idm_conn_event(ict->ict_ic, CE_TRANSPORT_FAIL, NULL); 1789a6d42e7dSPeter Dunlap iscsit_conn_dispatch_rele(ict); 1790a6d42e7dSPeter Dunlap } 1791a6d42e7dSPeter Dunlap } 1792a6d42e7dSPeter Dunlap 1793a6d42e7dSPeter Dunlap static void 1794a6d42e7dSPeter Dunlap iscsit_deferred(void *rx_pdu_void) 1795a6d42e7dSPeter Dunlap { 1796a6d42e7dSPeter Dunlap idm_pdu_t *rx_pdu = rx_pdu_void; 1797a6d42e7dSPeter Dunlap idm_conn_t *ic = rx_pdu->isp_ic; 1798a6d42e7dSPeter Dunlap iscsit_conn_t *ict = ic->ic_handle; 1799a6d42e7dSPeter Dunlap 1800a6d42e7dSPeter Dunlap switch (IDM_PDU_OPCODE(rx_pdu)) { 1801a6d42e7dSPeter Dunlap case ISCSI_OP_NOOP_OUT: 1802a6d42e7dSPeter Dunlap iscsit_set_cmdsn(ict, rx_pdu); 1803a6d42e7dSPeter Dunlap iscsit_pdu_op_noop(ict, rx_pdu); 1804a6d42e7dSPeter Dunlap break; 1805a6d42e7dSPeter Dunlap case ISCSI_OP_LOGIN_CMD: 1806a6d42e7dSPeter Dunlap iscsit_pdu_op_login_cmd(ict, rx_pdu); 1807a6d42e7dSPeter Dunlap break; 1808a6d42e7dSPeter Dunlap case ISCSI_OP_TEXT_CMD: 1809a6d42e7dSPeter Dunlap iscsit_set_cmdsn(ict, rx_pdu); 1810a6d42e7dSPeter Dunlap iscsit_pdu_op_text_cmd(ict, rx_pdu); 1811a6d42e7dSPeter Dunlap break; 1812a6d42e7dSPeter Dunlap case ISCSI_OP_LOGOUT_CMD: 1813a6d42e7dSPeter Dunlap iscsit_set_cmdsn(ict, rx_pdu); 1814a6d42e7dSPeter Dunlap iscsit_pdu_op_logout_cmd(ict, rx_pdu); 1815a6d42e7dSPeter Dunlap break; 1816a6d42e7dSPeter Dunlap default: 1817a6d42e7dSPeter Dunlap /* Protocol error. IDM should have caught this */ 1818a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_FAIL); 1819a6d42e7dSPeter Dunlap ASSERT(0); 1820a6d42e7dSPeter Dunlap break; 1821a6d42e7dSPeter Dunlap } 1822a6d42e7dSPeter Dunlap 1823a6d42e7dSPeter Dunlap iscsit_conn_dispatch_rele(ict); 1824a6d42e7dSPeter Dunlap } 1825a6d42e7dSPeter Dunlap 1826a6d42e7dSPeter Dunlap static void 1827a6d42e7dSPeter Dunlap iscsit_send_direct_scsi_resp(iscsit_conn_t *ict, idm_pdu_t *rx_pdu, 1828a6d42e7dSPeter Dunlap uint8_t response, uint8_t cmd_status) 1829a6d42e7dSPeter Dunlap { 1830a6d42e7dSPeter Dunlap idm_pdu_t *rsp_pdu; 1831a6d42e7dSPeter Dunlap idm_conn_t *ic; 1832a6d42e7dSPeter Dunlap iscsi_scsi_rsp_hdr_t *resp; 1833a6d42e7dSPeter Dunlap 1834a6d42e7dSPeter Dunlap ic = ict->ict_ic; 1835a6d42e7dSPeter Dunlap 1836a6d42e7dSPeter Dunlap rsp_pdu = idm_pdu_alloc(sizeof (iscsi_scsi_rsp_hdr_t), 0); 1837a6d42e7dSPeter Dunlap idm_pdu_init(rsp_pdu, ic, NULL, NULL); 1838a6d42e7dSPeter Dunlap resp = (iscsi_scsi_rsp_hdr_t *)rsp_pdu->isp_hdr; 1839a6d42e7dSPeter Dunlap 1840a6d42e7dSPeter Dunlap resp->opcode = ISCSI_OP_SCSI_RSP; 1841a6d42e7dSPeter Dunlap resp->flags = ISCSI_FLAG_FINAL; 1842a6d42e7dSPeter Dunlap resp->response = response; 1843a6d42e7dSPeter Dunlap resp->cmd_status = cmd_status; 1844a6d42e7dSPeter Dunlap resp->itt = rx_pdu->isp_hdr->itt; 1845a6d42e7dSPeter Dunlap 1846a6d42e7dSPeter Dunlap iscsit_pdu_tx(rsp_pdu); 1847a6d42e7dSPeter Dunlap } 1848a6d42e7dSPeter Dunlap 1849a6d42e7dSPeter Dunlap void 1850a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(idm_pdu_t *tm_resp_pdu, uint8_t tm_status) 1851a6d42e7dSPeter Dunlap { 1852a6d42e7dSPeter Dunlap iscsi_scsi_task_mgt_rsp_hdr_t *tm_resp; 1853a6d42e7dSPeter Dunlap 1854a6d42e7dSPeter Dunlap tm_resp = (iscsi_scsi_task_mgt_rsp_hdr_t *)tm_resp_pdu->isp_hdr; 1855a6d42e7dSPeter Dunlap tm_resp->response = tm_status; 1856a6d42e7dSPeter Dunlap iscsit_pdu_tx(tm_resp_pdu); 1857a6d42e7dSPeter Dunlap } 1858a6d42e7dSPeter Dunlap 1859a6d42e7dSPeter Dunlap void 1860a6d42e7dSPeter Dunlap iscsit_op_scsi_task_mgmt(iscsit_conn_t *ict, idm_pdu_t *rx_pdu) 1861a6d42e7dSPeter Dunlap { 1862a6d42e7dSPeter Dunlap idm_pdu_t *tm_resp_pdu; 1863a6d42e7dSPeter Dunlap iscsit_task_t *itask; 1864a6d42e7dSPeter Dunlap iscsit_task_t *tm_itask; 1865a6d42e7dSPeter Dunlap scsi_task_t *task; 1866a6d42e7dSPeter Dunlap iscsi_scsi_task_mgt_hdr_t *iscsi_tm = 1867a6d42e7dSPeter Dunlap (iscsi_scsi_task_mgt_hdr_t *)rx_pdu->isp_hdr; 1868a6d42e7dSPeter Dunlap iscsi_scsi_task_mgt_rsp_hdr_t *iscsi_tm_rsp = 1869a6d42e7dSPeter Dunlap (iscsi_scsi_task_mgt_rsp_hdr_t *)rx_pdu->isp_hdr; 1870a6d42e7dSPeter Dunlap uint32_t rtt, cmdsn, refcmdsn; 1871a6d42e7dSPeter Dunlap uint8_t tm_func; 1872a6d42e7dSPeter Dunlap 1873a6d42e7dSPeter Dunlap /* 1874a6d42e7dSPeter Dunlap * Setup response PDU (response field will get filled in later) 1875a6d42e7dSPeter Dunlap */ 1876a6d42e7dSPeter Dunlap tm_resp_pdu = idm_pdu_alloc(sizeof (iscsi_scsi_task_mgt_rsp_hdr_t), 0); 1877a6d42e7dSPeter Dunlap if (tm_resp_pdu == NULL) { 1878a6d42e7dSPeter Dunlap /* Can't respond, just drop it */ 1879a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 1880a6d42e7dSPeter Dunlap return; 1881a6d42e7dSPeter Dunlap } 1882a6d42e7dSPeter Dunlap idm_pdu_init(tm_resp_pdu, ict->ict_ic, NULL, NULL); 1883a6d42e7dSPeter Dunlap iscsi_tm_rsp = (iscsi_scsi_task_mgt_rsp_hdr_t *)tm_resp_pdu->isp_hdr; 1884a6d42e7dSPeter Dunlap bzero(iscsi_tm_rsp, sizeof (iscsi_scsi_task_mgt_rsp_hdr_t)); 1885a6d42e7dSPeter Dunlap iscsi_tm_rsp->opcode = ISCSI_OP_SCSI_TASK_MGT_RSP; 1886a6d42e7dSPeter Dunlap iscsi_tm_rsp->flags = ISCSI_FLAG_FINAL; 1887a6d42e7dSPeter Dunlap iscsi_tm_rsp->itt = rx_pdu->isp_hdr->itt; 1888a6d42e7dSPeter Dunlap 1889a6d42e7dSPeter Dunlap /* 1890a6d42e7dSPeter Dunlap * Figure out what we're being asked to do. 1891a6d42e7dSPeter Dunlap */ 1892a6d42e7dSPeter Dunlap switch (iscsi_tm->function & ISCSI_FLAG_TASK_MGMT_FUNCTION_MASK) { 1893a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_ABORT_TASK: 1894a6d42e7dSPeter Dunlap /* 1895a6d42e7dSPeter Dunlap * STMF doesn't currently support the "abort task" task 1896a6d42e7dSPeter Dunlap * management command although it does support aborting 1897a6d42e7dSPeter Dunlap * an individual task. We'll get STMF to abort the task 1898a6d42e7dSPeter Dunlap * for us but handle the details of the task management 1899a6d42e7dSPeter Dunlap * command ourselves. 1900a6d42e7dSPeter Dunlap * 1901a6d42e7dSPeter Dunlap * Find the task associated with the referenced task tag. 1902a6d42e7dSPeter Dunlap */ 1903a6d42e7dSPeter Dunlap rtt = iscsi_tm->rtt; 1904a6d42e7dSPeter Dunlap itask = (iscsit_task_t *)idm_task_find_by_handle(ict->ict_ic, 1905a6d42e7dSPeter Dunlap (uintptr_t)rtt); 1906a6d42e7dSPeter Dunlap 1907a6d42e7dSPeter Dunlap if (itask == NULL) { 1908a6d42e7dSPeter Dunlap cmdsn = ntohl(iscsi_tm->cmdsn); 1909a6d42e7dSPeter Dunlap refcmdsn = ntohl(iscsi_tm->refcmdsn); 1910a6d42e7dSPeter Dunlap 1911a6d42e7dSPeter Dunlap /* 1912a6d42e7dSPeter Dunlap * Task was not found. If RefCmdSN is within the CmdSN 1913a6d42e7dSPeter Dunlap * window and less than CmdSN of the TM function, return 1914a6d42e7dSPeter Dunlap * "Function Complete". Otherwise, return 1915a6d42e7dSPeter Dunlap * "Task Does Not Exist". 1916a6d42e7dSPeter Dunlap */ 1917a6d42e7dSPeter Dunlap 1918a6d42e7dSPeter Dunlap if (iscsit_cmdsn_in_window(ict, refcmdsn) && 1919a6d42e7dSPeter Dunlap (refcmdsn < cmdsn)) { 1920a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 1921a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_COMPLETE); 1922a6d42e7dSPeter Dunlap } else { 1923a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 1924a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_NO_TASK); 1925a6d42e7dSPeter Dunlap } 1926a6d42e7dSPeter Dunlap } else { 1927a6d42e7dSPeter Dunlap 1928a6d42e7dSPeter Dunlap /* 1929a6d42e7dSPeter Dunlap * Tell STMF to abort the task. This will do no harm 1930a6d42e7dSPeter Dunlap * if the task is already complete. 1931a6d42e7dSPeter Dunlap */ 1932a6d42e7dSPeter Dunlap stmf_abort(STMF_QUEUE_TASK_ABORT, itask->it_stmf_task, 1933a6d42e7dSPeter Dunlap STMF_ABORTED, NULL); 1934a6d42e7dSPeter Dunlap 1935a6d42e7dSPeter Dunlap /* 1936a6d42e7dSPeter Dunlap * Make sure the task hasn't already completed 1937a6d42e7dSPeter Dunlap */ 1938a6d42e7dSPeter Dunlap mutex_enter(&itask->it_idm_task->idt_mutex); 1939a6d42e7dSPeter Dunlap if ((itask->it_idm_task->idt_state == TASK_COMPLETE) || 1940a6d42e7dSPeter Dunlap (itask->it_idm_task->idt_state == TASK_IDLE)) { 1941a6d42e7dSPeter Dunlap /* 1942a6d42e7dSPeter Dunlap * Task is complete, return "Task Does Not 1943a6d42e7dSPeter Dunlap * Exist" 1944a6d42e7dSPeter Dunlap */ 1945a6d42e7dSPeter Dunlap mutex_exit(&itask->it_idm_task->idt_mutex); 1946a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 1947a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_NO_TASK); 1948a6d42e7dSPeter Dunlap } else { 1949a6d42e7dSPeter Dunlap /* 1950a6d42e7dSPeter Dunlap * STMF is now aborting the task, return 1951a6d42e7dSPeter Dunlap * "Function Complete" 1952a6d42e7dSPeter Dunlap */ 1953a6d42e7dSPeter Dunlap mutex_exit(&itask->it_idm_task->idt_mutex); 1954a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 1955a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_COMPLETE); 1956a6d42e7dSPeter Dunlap } 1957a6d42e7dSPeter Dunlap idm_task_rele(itask->it_idm_task); 1958a6d42e7dSPeter Dunlap } 1959a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 1960a6d42e7dSPeter Dunlap return; 1961a6d42e7dSPeter Dunlap 1962a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_ABORT_TASK_SET: 1963a6d42e7dSPeter Dunlap tm_func = TM_ABORT_TASK_SET; 1964a6d42e7dSPeter Dunlap break; 1965a6d42e7dSPeter Dunlap 1966a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_CLEAR_ACA: 1967a6d42e7dSPeter Dunlap tm_func = TM_CLEAR_ACA; 1968a6d42e7dSPeter Dunlap break; 1969a6d42e7dSPeter Dunlap 1970a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_CLEAR_TASK_SET: 1971a6d42e7dSPeter Dunlap tm_func = TM_CLEAR_TASK_SET; 1972a6d42e7dSPeter Dunlap break; 1973a6d42e7dSPeter Dunlap 1974a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_LOGICAL_UNIT_RESET: 1975a6d42e7dSPeter Dunlap tm_func = TM_LUN_RESET; 1976a6d42e7dSPeter Dunlap break; 1977a6d42e7dSPeter Dunlap 1978a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_TARGET_WARM_RESET: 1979a6d42e7dSPeter Dunlap tm_func = TM_TARGET_WARM_RESET; 1980a6d42e7dSPeter Dunlap break; 1981a6d42e7dSPeter Dunlap 1982a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_TARGET_COLD_RESET: 1983a6d42e7dSPeter Dunlap tm_func = TM_TARGET_COLD_RESET; 1984a6d42e7dSPeter Dunlap break; 1985a6d42e7dSPeter Dunlap 1986a6d42e7dSPeter Dunlap case ISCSI_TM_FUNC_TASK_REASSIGN: 1987a6d42e7dSPeter Dunlap /* 1988a6d42e7dSPeter Dunlap * We do not currently support allegiance reassignment. When 1989a6d42e7dSPeter Dunlap * we start supporting ERL1+, we will need to. 1990a6d42e7dSPeter Dunlap */ 1991a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 1992a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_NO_ALLG_REASSN); 1993a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 1994a6d42e7dSPeter Dunlap return; 1995a6d42e7dSPeter Dunlap 1996a6d42e7dSPeter Dunlap default: 1997a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 1998a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_REJECTED); 1999a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 2000a6d42e7dSPeter Dunlap return; 2001a6d42e7dSPeter Dunlap } 2002a6d42e7dSPeter Dunlap 2003a6d42e7dSPeter Dunlap tm_itask = iscsit_tm_task_alloc(ict); 2004a6d42e7dSPeter Dunlap if (tm_itask == NULL) { 2005a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 2006a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_REJECTED); 2007a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 2008a6d42e7dSPeter Dunlap return; 2009a6d42e7dSPeter Dunlap } 2010a6d42e7dSPeter Dunlap 2011a6d42e7dSPeter Dunlap 2012a6d42e7dSPeter Dunlap task = stmf_task_alloc(ict->ict_sess->ist_lport, 2013a6d42e7dSPeter Dunlap ict->ict_sess->ist_stmf_sess, iscsi_tm->lun, 2014a6d42e7dSPeter Dunlap 0, STMF_TASK_EXT_NONE); 2015a6d42e7dSPeter Dunlap if (task == NULL) { 2016a6d42e7dSPeter Dunlap /* 2017a6d42e7dSPeter Dunlap * If this happens, either the LU is in reset, couldn't 2018a6d42e7dSPeter Dunlap * get memory, or some other condition in which we simply 2019a6d42e7dSPeter Dunlap * can't complete this request. It would be nice to return 2020a6d42e7dSPeter Dunlap * an error code like "busy" but the closest we have is 2021a6d42e7dSPeter Dunlap * "rejected". 2022a6d42e7dSPeter Dunlap */ 2023a6d42e7dSPeter Dunlap iscsit_send_task_mgmt_resp(tm_resp_pdu, 2024a6d42e7dSPeter Dunlap SCSI_TCP_TM_RESP_REJECTED); 2025a6d42e7dSPeter Dunlap iscsit_tm_task_free(tm_itask); 2026a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 2027a6d42e7dSPeter Dunlap return; 2028a6d42e7dSPeter Dunlap } 2029a6d42e7dSPeter Dunlap 2030a6d42e7dSPeter Dunlap tm_itask->it_tm_pdu = tm_resp_pdu; 2031a6d42e7dSPeter Dunlap tm_itask->it_stmf_task = task; 2032a6d42e7dSPeter Dunlap task->task_port_private = tm_itask; 2033a6d42e7dSPeter Dunlap task->task_mgmt_function = tm_func; 2034a6d42e7dSPeter Dunlap task->task_additional_flags = TASK_AF_NO_EXPECTED_XFER_LENGTH; 2035a6d42e7dSPeter Dunlap task->task_priority = 0; 2036a6d42e7dSPeter Dunlap task->task_max_nbufs = STMF_BUFS_MAX; 2037a6d42e7dSPeter Dunlap task->task_cmd_seq_no = iscsi_tm->itt; 2038a6d42e7dSPeter Dunlap task->task_expected_xfer_length = 0; 2039a6d42e7dSPeter Dunlap 2040a6d42e7dSPeter Dunlap stmf_post_task(task, NULL); 2041a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 2042a6d42e7dSPeter Dunlap } 2043a6d42e7dSPeter Dunlap 2044a6d42e7dSPeter Dunlap static void 2045a6d42e7dSPeter Dunlap iscsit_pdu_op_noop(iscsit_conn_t *ict, idm_pdu_t *rx_pdu) 2046a6d42e7dSPeter Dunlap { 2047a6d42e7dSPeter Dunlap iscsi_nop_out_hdr_t *out = (iscsi_nop_out_hdr_t *)rx_pdu->isp_hdr; 2048a6d42e7dSPeter Dunlap iscsi_nop_in_hdr_t *in; 2049a6d42e7dSPeter Dunlap int resp_datalen; 2050a6d42e7dSPeter Dunlap idm_pdu_t *resp; 2051a6d42e7dSPeter Dunlap 2052a6d42e7dSPeter Dunlap /* Get iSCSI session handle */ 2053a6d42e7dSPeter Dunlap /* Ignore the response from initiator */ 2054a6d42e7dSPeter Dunlap if (out->ttt != ISCSI_RSVD_TASK_TAG) 2055a6d42e7dSPeter Dunlap return; 2056a6d42e7dSPeter Dunlap 2057a6d42e7dSPeter Dunlap /* Allocate a PDU to respond */ 2058a6d42e7dSPeter Dunlap resp_datalen = ntoh24(out->dlength); 2059a6d42e7dSPeter Dunlap resp = idm_pdu_alloc(sizeof (iscsi_hdr_t), resp_datalen); 2060a6d42e7dSPeter Dunlap idm_pdu_init(resp, ict->ict_ic, NULL, NULL); 2061a6d42e7dSPeter Dunlap if (resp_datalen > 0) { 2062a6d42e7dSPeter Dunlap bcopy(rx_pdu->isp_data, resp->isp_data, resp_datalen); 2063a6d42e7dSPeter Dunlap } 2064a6d42e7dSPeter Dunlap 2065a6d42e7dSPeter Dunlap in = (iscsi_nop_in_hdr_t *)resp->isp_hdr; 2066a6d42e7dSPeter Dunlap bzero(in, sizeof (*in)); 2067a6d42e7dSPeter Dunlap in->opcode = ISCSI_OP_NOOP_IN; 2068a6d42e7dSPeter Dunlap in->flags = ISCSI_FLAG_FINAL; 2069a6d42e7dSPeter Dunlap bcopy(out->lun, in->lun, 8); 2070a6d42e7dSPeter Dunlap in->itt = out->itt; 2071a6d42e7dSPeter Dunlap in->ttt = ISCSI_RSVD_TASK_TAG; 2072a6d42e7dSPeter Dunlap hton24(in->dlength, resp_datalen); 2073a6d42e7dSPeter Dunlap 2074a6d42e7dSPeter Dunlap /* Any other field in resp to be set? */ 2075a6d42e7dSPeter Dunlap iscsit_pdu_tx(resp); 2076a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 2077a6d42e7dSPeter Dunlap } 2078a6d42e7dSPeter Dunlap 2079a6d42e7dSPeter Dunlap static void 2080a6d42e7dSPeter Dunlap iscsit_pdu_op_login_cmd(iscsit_conn_t *ict, idm_pdu_t *rx_pdu) 2081a6d42e7dSPeter Dunlap { 2082a6d42e7dSPeter Dunlap 2083a6d42e7dSPeter Dunlap /* 2084a6d42e7dSPeter Dunlap * Submit PDU to login state machine. State machine will free the 2085a6d42e7dSPeter Dunlap * PDU. 2086a6d42e7dSPeter Dunlap */ 2087a6d42e7dSPeter Dunlap iscsit_login_sm_event(ict, ILE_LOGIN_RCV, rx_pdu); 2088a6d42e7dSPeter Dunlap } 2089a6d42e7dSPeter Dunlap 2090a6d42e7dSPeter Dunlap void 2091a6d42e7dSPeter Dunlap iscsit_pdu_op_logout_cmd(iscsit_conn_t *ict, idm_pdu_t *rx_pdu) 2092a6d42e7dSPeter Dunlap { 2093a6d42e7dSPeter Dunlap iscsi_logout_hdr_t *logout_req = 2094a6d42e7dSPeter Dunlap (iscsi_logout_hdr_t *)rx_pdu->isp_hdr; 2095a6d42e7dSPeter Dunlap iscsi_logout_rsp_hdr_t *logout_rsp; 2096a6d42e7dSPeter Dunlap idm_pdu_t *resp; 2097a6d42e7dSPeter Dunlap 2098a6d42e7dSPeter Dunlap /* Allocate a PDU to respond */ 2099a6d42e7dSPeter Dunlap resp = idm_pdu_alloc(sizeof (iscsi_hdr_t), 0); 2100a6d42e7dSPeter Dunlap idm_pdu_init(resp, ict->ict_ic, NULL, NULL); 2101a6d42e7dSPeter Dunlap 2102a6d42e7dSPeter Dunlap /* 2103a6d42e7dSPeter Dunlap * Logout results in the immediate termination of all tasks except 2104a6d42e7dSPeter Dunlap * if the logout reason is ISCSI_LOGOUT_REASON_RECOVERY. The 2105a6d42e7dSPeter Dunlap * connection state machine will drive this task cleanup automatically 2106a6d42e7dSPeter Dunlap * so we don't need to handle that here. 2107a6d42e7dSPeter Dunlap */ 2108a6d42e7dSPeter Dunlap logout_rsp = (iscsi_logout_rsp_hdr_t *)resp->isp_hdr; 2109a6d42e7dSPeter Dunlap bzero(logout_rsp, sizeof (*logout_rsp)); 2110a6d42e7dSPeter Dunlap logout_rsp->opcode = ISCSI_OP_LOGOUT_RSP; 2111a6d42e7dSPeter Dunlap logout_rsp->flags = ISCSI_FLAG_FINAL; 2112a6d42e7dSPeter Dunlap logout_rsp->itt = logout_req->itt; 2113a6d42e7dSPeter Dunlap if ((logout_req->flags & ISCSI_FLAG_LOGOUT_REASON_MASK) > 2114a6d42e7dSPeter Dunlap ISCSI_LOGOUT_REASON_RECOVERY) { 2115a6d42e7dSPeter Dunlap logout_rsp->response = ISCSI_LOGOUT_RECOVERY_UNSUPPORTED; 2116a6d42e7dSPeter Dunlap } else { 2117a6d42e7dSPeter Dunlap logout_rsp->response = ISCSI_LOGOUT_SUCCESS; 2118a6d42e7dSPeter Dunlap } 2119a6d42e7dSPeter Dunlap 2120a6d42e7dSPeter Dunlap iscsit_pdu_tx(resp); 2121a6d42e7dSPeter Dunlap idm_pdu_complete(rx_pdu, IDM_STATUS_SUCCESS); 2122a6d42e7dSPeter Dunlap } 2123a6d42e7dSPeter Dunlap 2124a6d42e7dSPeter Dunlap /* 2125a6d42e7dSPeter Dunlap * Calculate the number of outstanding commands we can process 2126a6d42e7dSPeter Dunlap */ 2127a6d42e7dSPeter Dunlap int 2128a6d42e7dSPeter Dunlap iscsit_cmd_window() 2129a6d42e7dSPeter Dunlap { 2130a6d42e7dSPeter Dunlap /* Will be better later */ 2131a6d42e7dSPeter Dunlap return (1024); 2132a6d42e7dSPeter Dunlap } 2133a6d42e7dSPeter Dunlap 2134a6d42e7dSPeter Dunlap /* 2135a6d42e7dSPeter Dunlap * Set local registers based on incoming PDU 2136a6d42e7dSPeter Dunlap */ 2137a6d42e7dSPeter Dunlap void 2138a6d42e7dSPeter Dunlap iscsit_set_cmdsn(iscsit_conn_t *ict, idm_pdu_t *rx_pdu) 2139a6d42e7dSPeter Dunlap { 2140a6d42e7dSPeter Dunlap iscsit_sess_t *ist; 2141a6d42e7dSPeter Dunlap iscsi_scsi_cmd_hdr_t *req; 2142a6d42e7dSPeter Dunlap 2143a6d42e7dSPeter Dunlap ist = ict->ict_sess; 2144a6d42e7dSPeter Dunlap 2145a6d42e7dSPeter Dunlap req = (iscsi_scsi_cmd_hdr_t *)rx_pdu->isp_hdr; 2146a6d42e7dSPeter Dunlap 2147a6d42e7dSPeter Dunlap rw_enter(&ist->ist_sn_rwlock, RW_WRITER); 2148a6d42e7dSPeter Dunlap ist->ist_expcmdsn = ntohl(req->cmdsn) + 1; 2149a6d42e7dSPeter Dunlap ist->ist_maxcmdsn = ntohl(req->cmdsn) + iscsit_cmd_window(); 2150a6d42e7dSPeter Dunlap rw_exit(&ist->ist_sn_rwlock); 2151a6d42e7dSPeter Dunlap } 2152a6d42e7dSPeter Dunlap 2153a6d42e7dSPeter Dunlap /* 2154a6d42e7dSPeter Dunlap * Update local StatSN and set SNs in response 2155a6d42e7dSPeter Dunlap */ 2156a6d42e7dSPeter Dunlap static void 2157a6d42e7dSPeter Dunlap iscsit_calc_rspsn(iscsit_conn_t *ict, idm_pdu_t *resp) 2158a6d42e7dSPeter Dunlap { 2159a6d42e7dSPeter Dunlap iscsit_sess_t *ist; 2160a6d42e7dSPeter Dunlap iscsi_scsi_rsp_hdr_t *rsp; 2161a6d42e7dSPeter Dunlap 2162a6d42e7dSPeter Dunlap /* Get iSCSI session handle */ 2163a6d42e7dSPeter Dunlap ist = ict->ict_sess; 2164a6d42e7dSPeter Dunlap 2165a6d42e7dSPeter Dunlap rsp = (iscsi_scsi_rsp_hdr_t *)resp->isp_hdr; 2166a6d42e7dSPeter Dunlap 2167a6d42e7dSPeter Dunlap /* Update StatSN */ 2168a6d42e7dSPeter Dunlap rsp->statsn = htonl(ict->ict_statsn); 2169a6d42e7dSPeter Dunlap switch (IDM_PDU_OPCODE(resp)) { 2170a6d42e7dSPeter Dunlap case ISCSI_OP_RTT_RSP: 2171a6d42e7dSPeter Dunlap /* Do nothing */ 2172a6d42e7dSPeter Dunlap break; 2173a6d42e7dSPeter Dunlap case ISCSI_OP_NOOP_IN: 2174a6d42e7dSPeter Dunlap /* 2175a6d42e7dSPeter Dunlap * Refer to section 10.19.1, RFC3720. 2176a6d42e7dSPeter Dunlap * Advance only if target is responding initiator 2177a6d42e7dSPeter Dunlap */ 2178a6d42e7dSPeter Dunlap if (((iscsi_nop_in_hdr_t *)rsp)->ttt == ISCSI_RSVD_TASK_TAG) 2179a6d42e7dSPeter Dunlap ict->ict_statsn++; 2180a6d42e7dSPeter Dunlap break; 2181a6d42e7dSPeter Dunlap case ISCSI_OP_SCSI_DATA_RSP: 2182a6d42e7dSPeter Dunlap if (rsp->flags & ISCSI_FLAG_DATA_STATUS) 2183a6d42e7dSPeter Dunlap ict->ict_statsn++; 2184a6d42e7dSPeter Dunlap else 2185a6d42e7dSPeter Dunlap rsp->statsn = 0; 2186a6d42e7dSPeter Dunlap break; 2187a6d42e7dSPeter Dunlap default: 2188a6d42e7dSPeter Dunlap ict->ict_statsn++; 2189a6d42e7dSPeter Dunlap break; 2190a6d42e7dSPeter Dunlap } 2191a6d42e7dSPeter Dunlap 2192a6d42e7dSPeter Dunlap /* Set ExpCmdSN and MaxCmdSN */ 2193a6d42e7dSPeter Dunlap rsp->maxcmdsn = htonl(ist->ist_maxcmdsn); 2194a6d42e7dSPeter Dunlap rsp->expcmdsn = htonl(ist->ist_expcmdsn); 2195a6d42e7dSPeter Dunlap } 2196a6d42e7dSPeter Dunlap 2197a6d42e7dSPeter Dunlap /* 2198a6d42e7dSPeter Dunlap * Wrapper funtion, calls iscsi_calc_rspsn and idm_pdu_tx 2199a6d42e7dSPeter Dunlap */ 2200a6d42e7dSPeter Dunlap void 2201a6d42e7dSPeter Dunlap iscsit_pdu_tx(idm_pdu_t *pdu) 2202a6d42e7dSPeter Dunlap { 2203a6d42e7dSPeter Dunlap iscsit_conn_t *ict = pdu->isp_ic->ic_handle; 2204a6d42e7dSPeter Dunlap 2205a6d42e7dSPeter Dunlap /* 2206a6d42e7dSPeter Dunlap * Protect ict->ict_statsn, ist->ist_maxcmdsn, and ist->ist_expcmdsn 2207a6d42e7dSPeter Dunlap * (which are used by iscsit_calc_rspsn) with the session mutex 2208a6d42e7dSPeter Dunlap * (ist->ist_sn_mutex). 2209a6d42e7dSPeter Dunlap */ 2210a6d42e7dSPeter Dunlap rw_enter(&ict->ict_sess->ist_sn_rwlock, RW_WRITER); 2211a6d42e7dSPeter Dunlap iscsit_calc_rspsn(ict, pdu); 2212a6d42e7dSPeter Dunlap idm_pdu_tx(pdu); 2213a6d42e7dSPeter Dunlap rw_exit(&ict->ict_sess->ist_sn_rwlock); 2214a6d42e7dSPeter Dunlap } 2215a6d42e7dSPeter Dunlap 2216a6d42e7dSPeter Dunlap /* 2217a6d42e7dSPeter Dunlap * Internal functions 2218a6d42e7dSPeter Dunlap */ 2219a6d42e7dSPeter Dunlap 2220a6d42e7dSPeter Dunlap void 2221a6d42e7dSPeter Dunlap iscsit_send_async_event(iscsit_conn_t *ict, uint8_t event) 2222a6d42e7dSPeter Dunlap { 2223a6d42e7dSPeter Dunlap idm_pdu_t *abt; 2224a6d42e7dSPeter Dunlap iscsi_async_evt_hdr_t *async_abt; 2225a6d42e7dSPeter Dunlap 2226a6d42e7dSPeter Dunlap /* 2227a6d42e7dSPeter Dunlap * Get a PDU to build the abort request. 2228a6d42e7dSPeter Dunlap */ 2229a6d42e7dSPeter Dunlap abt = idm_pdu_alloc(sizeof (iscsi_hdr_t), 0); 2230a6d42e7dSPeter Dunlap if (abt == NULL) { 2231a6d42e7dSPeter Dunlap idm_conn_event(ict->ict_ic, CE_TRANSPORT_FAIL, NULL); 2232a6d42e7dSPeter Dunlap return; 2233a6d42e7dSPeter Dunlap } 2234a6d42e7dSPeter Dunlap idm_pdu_init(abt, ict->ict_ic, NULL, NULL); 2235a6d42e7dSPeter Dunlap 2236a6d42e7dSPeter Dunlap ASSERT(abt != NULL); 2237a6d42e7dSPeter Dunlap abt->isp_datalen = 0; 2238a6d42e7dSPeter Dunlap 2239a6d42e7dSPeter Dunlap async_abt = (iscsi_async_evt_hdr_t *)abt->isp_hdr; 2240a6d42e7dSPeter Dunlap bzero(async_abt, sizeof (*async_abt)); 2241a6d42e7dSPeter Dunlap async_abt->opcode = ISCSI_OP_ASYNC_EVENT; 2242a6d42e7dSPeter Dunlap async_abt->async_event = event; 2243a6d42e7dSPeter Dunlap async_abt->flags = ISCSI_FLAG_FINAL; 2244a6d42e7dSPeter Dunlap async_abt->rsvd4[0] = 0xff; 2245a6d42e7dSPeter Dunlap async_abt->rsvd4[1] = 0xff; 2246a6d42e7dSPeter Dunlap async_abt->rsvd4[2] = 0xff; 2247a6d42e7dSPeter Dunlap async_abt->rsvd4[3] = 0xff; 2248a6d42e7dSPeter Dunlap 2249a6d42e7dSPeter Dunlap switch (event) { 2250a6d42e7dSPeter Dunlap case ISCSI_ASYNC_EVENT_REQUEST_LOGOUT: 2251a6d42e7dSPeter Dunlap async_abt->param3 = htons(IDM_LOGOUT_SECONDS); 2252a6d42e7dSPeter Dunlap break; 2253a6d42e7dSPeter Dunlap case ISCSI_ASYNC_EVENT_SCSI_EVENT: 2254a6d42e7dSPeter Dunlap case ISCSI_ASYNC_EVENT_DROPPING_CONNECTION: 2255a6d42e7dSPeter Dunlap case ISCSI_ASYNC_EVENT_DROPPING_ALL_CONNECTIONS: 2256a6d42e7dSPeter Dunlap case ISCSI_ASYNC_EVENT_PARAM_NEGOTIATION: 2257a6d42e7dSPeter Dunlap default: 2258a6d42e7dSPeter Dunlap ASSERT(0); 2259a6d42e7dSPeter Dunlap } 2260a6d42e7dSPeter Dunlap 2261a6d42e7dSPeter Dunlap iscsit_pdu_tx(abt); 2262a6d42e7dSPeter Dunlap } 2263a6d42e7dSPeter Dunlap 2264a6d42e7dSPeter Dunlap 2265a6d42e7dSPeter Dunlap static iscsit_task_t * 2266a6d42e7dSPeter Dunlap iscsit_task_alloc(iscsit_conn_t *ict) 2267a6d42e7dSPeter Dunlap { 2268a6d42e7dSPeter Dunlap iscsit_task_t *itask; 2269a6d42e7dSPeter Dunlap iscsit_buf_t *immed_ibuf; 2270a6d42e7dSPeter Dunlap 2271a6d42e7dSPeter Dunlap /* 2272a6d42e7dSPeter Dunlap * Possible items to pre-alloc if we cache iscsit_task_t's: 2273a6d42e7dSPeter Dunlap * 2274a6d42e7dSPeter Dunlap * Status PDU w/ sense buffer 2275a6d42e7dSPeter Dunlap * stmf_data_buf_t for immediate data 2276a6d42e7dSPeter Dunlap */ 2277a6d42e7dSPeter Dunlap itask = kmem_alloc(sizeof (iscsit_task_t) + sizeof (iscsit_buf_t) + 2278a6d42e7dSPeter Dunlap sizeof (stmf_data_buf_t), KM_NOSLEEP); 2279a6d42e7dSPeter Dunlap if (itask != NULL) { 2280a6d42e7dSPeter Dunlap mutex_init(&itask->it_mutex, NULL, MUTEX_DRIVER, NULL); 2281a6d42e7dSPeter Dunlap itask->it_aborted = itask->it_stmf_abort = 2282a6d42e7dSPeter Dunlap itask->it_tm_task = 0; 2283a6d42e7dSPeter Dunlap 2284a6d42e7dSPeter Dunlap immed_ibuf = (iscsit_buf_t *)(itask + 1); 2285a6d42e7dSPeter Dunlap bzero(immed_ibuf, sizeof (*immed_ibuf)); 2286a6d42e7dSPeter Dunlap immed_ibuf->ibuf_is_immed = B_TRUE; 2287a6d42e7dSPeter Dunlap immed_ibuf->ibuf_stmf_buf = (stmf_data_buf_t *)(immed_ibuf + 1); 2288a6d42e7dSPeter Dunlap 2289a6d42e7dSPeter Dunlap bzero(immed_ibuf->ibuf_stmf_buf, sizeof (stmf_data_buf_t)); 2290a6d42e7dSPeter Dunlap immed_ibuf->ibuf_stmf_buf->db_port_private = immed_ibuf; 2291a6d42e7dSPeter Dunlap immed_ibuf->ibuf_stmf_buf->db_sglist_length = 1; 2292a6d42e7dSPeter Dunlap immed_ibuf->ibuf_stmf_buf->db_flags = DB_DIRECTION_FROM_RPORT | 2293a6d42e7dSPeter Dunlap DB_DONT_CACHE; 2294a6d42e7dSPeter Dunlap itask->it_immed_data = immed_ibuf; 2295a6d42e7dSPeter Dunlap itask->it_idm_task = idm_task_alloc(ict->ict_ic); 2296a6d42e7dSPeter Dunlap if (itask->it_idm_task != NULL) { 2297a6d42e7dSPeter Dunlap itask->it_idm_task->idt_private = itask; 2298a6d42e7dSPeter Dunlap itask->it_ict = ict; 2299a6d42e7dSPeter Dunlap itask->it_ttt = itask->it_idm_task->idt_tt; 2300a6d42e7dSPeter Dunlap return (itask); 2301a6d42e7dSPeter Dunlap } else { 2302a6d42e7dSPeter Dunlap kmem_free(itask, sizeof (iscsit_task_t) + 2303a6d42e7dSPeter Dunlap sizeof (iscsit_buf_t) + sizeof (stmf_data_buf_t)); 2304a6d42e7dSPeter Dunlap } 2305a6d42e7dSPeter Dunlap } 2306a6d42e7dSPeter Dunlap 2307a6d42e7dSPeter Dunlap return (NULL); 2308a6d42e7dSPeter Dunlap } 2309a6d42e7dSPeter Dunlap 2310a6d42e7dSPeter Dunlap static void 2311a6d42e7dSPeter Dunlap iscsit_task_free(iscsit_task_t *itask) 2312a6d42e7dSPeter Dunlap { 2313a6d42e7dSPeter Dunlap idm_task_free(itask->it_idm_task); 2314a6d42e7dSPeter Dunlap mutex_destroy(&itask->it_mutex); 2315a6d42e7dSPeter Dunlap kmem_free(itask, sizeof (iscsit_task_t) + 2316a6d42e7dSPeter Dunlap sizeof (iscsit_buf_t) + sizeof (stmf_data_buf_t)); 2317a6d42e7dSPeter Dunlap } 2318a6d42e7dSPeter Dunlap 2319a6d42e7dSPeter Dunlap static iscsit_task_t * 2320a6d42e7dSPeter Dunlap iscsit_tm_task_alloc(iscsit_conn_t *ict) 2321a6d42e7dSPeter Dunlap { 2322a6d42e7dSPeter Dunlap iscsit_task_t *itask; 2323a6d42e7dSPeter Dunlap 2324a6d42e7dSPeter Dunlap itask = kmem_zalloc(sizeof (iscsit_task_t), KM_NOSLEEP); 2325a6d42e7dSPeter Dunlap if (itask != NULL) { 2326a6d42e7dSPeter Dunlap idm_conn_hold(ict->ict_ic); 2327a6d42e7dSPeter Dunlap mutex_init(&itask->it_mutex, NULL, MUTEX_DRIVER, NULL); 2328a6d42e7dSPeter Dunlap itask->it_aborted = itask->it_stmf_abort = 2329a6d42e7dSPeter Dunlap itask->it_tm_responded = 0; 2330a6d42e7dSPeter Dunlap itask->it_tm_pdu = NULL; 2331a6d42e7dSPeter Dunlap itask->it_tm_task = 1; 2332a6d42e7dSPeter Dunlap itask->it_ict = ict; 2333a6d42e7dSPeter Dunlap } 2334a6d42e7dSPeter Dunlap 2335a6d42e7dSPeter Dunlap return (itask); 2336a6d42e7dSPeter Dunlap } 2337a6d42e7dSPeter Dunlap 2338a6d42e7dSPeter Dunlap static void 2339a6d42e7dSPeter Dunlap iscsit_tm_task_free(iscsit_task_t *itask) 2340a6d42e7dSPeter Dunlap { 2341a6d42e7dSPeter Dunlap /* 2342a6d42e7dSPeter Dunlap * If we responded then the call to idm_pdu_complete will free the 2343a6d42e7dSPeter Dunlap * PDU. Otherwise we got aborted before the TM function could 2344a6d42e7dSPeter Dunlap * complete and we need to free the PDU explicitly. 2345a6d42e7dSPeter Dunlap */ 2346a6d42e7dSPeter Dunlap if (itask->it_tm_pdu != NULL && !itask->it_tm_responded) 2347a6d42e7dSPeter Dunlap idm_pdu_free(itask->it_tm_pdu); 2348a6d42e7dSPeter Dunlap idm_conn_rele(itask->it_ict->ict_ic); 2349a6d42e7dSPeter Dunlap mutex_destroy(&itask->it_mutex); 2350a6d42e7dSPeter Dunlap kmem_free(itask, sizeof (iscsit_task_t)); 2351a6d42e7dSPeter Dunlap } 2352a6d42e7dSPeter Dunlap 2353a6d42e7dSPeter Dunlap /* 2354a6d42e7dSPeter Dunlap * iscsit status PDU cache 2355a6d42e7dSPeter Dunlap */ 2356a6d42e7dSPeter Dunlap 2357a6d42e7dSPeter Dunlap /*ARGSUSED*/ 2358a6d42e7dSPeter Dunlap static int 2359a6d42e7dSPeter Dunlap iscsit_status_pdu_constructor(void *pdu_void, void *arg, int flags) 2360a6d42e7dSPeter Dunlap { 2361a6d42e7dSPeter Dunlap idm_pdu_t *pdu = pdu_void; 2362a6d42e7dSPeter Dunlap iscsi_scsi_rsp_hdr_t *rsp; 2363a6d42e7dSPeter Dunlap 2364a6d42e7dSPeter Dunlap bzero(pdu, sizeof (idm_pdu_t)); 2365a6d42e7dSPeter Dunlap pdu->isp_callback = iscsit_send_good_status_done; 2366a6d42e7dSPeter Dunlap pdu->isp_magic = IDM_PDU_MAGIC; 2367a6d42e7dSPeter Dunlap pdu->isp_hdr = (iscsi_hdr_t *)(pdu + 1); /* Ptr arithmetic */ 2368a6d42e7dSPeter Dunlap pdu->isp_hdrlen = sizeof (iscsi_hdr_t); 2369a6d42e7dSPeter Dunlap 2370a6d42e7dSPeter Dunlap /* Setup status response */ 2371a6d42e7dSPeter Dunlap rsp = (iscsi_scsi_rsp_hdr_t *)pdu->isp_hdr; 2372a6d42e7dSPeter Dunlap bzero(rsp, sizeof (*rsp)); 2373a6d42e7dSPeter Dunlap rsp->opcode = ISCSI_OP_SCSI_RSP; 2374a6d42e7dSPeter Dunlap rsp->flags = ISCSI_FLAG_FINAL; 2375a6d42e7dSPeter Dunlap rsp->response = ISCSI_STATUS_CMD_COMPLETED; 2376a6d42e7dSPeter Dunlap 2377a6d42e7dSPeter Dunlap return (0); 2378a6d42e7dSPeter Dunlap } 2379a6d42e7dSPeter Dunlap 2380a6d42e7dSPeter Dunlap /* 2381a6d42e7dSPeter Dunlap * iscsit private data handler 2382a6d42e7dSPeter Dunlap */ 2383a6d42e7dSPeter Dunlap 2384a6d42e7dSPeter Dunlap /*ARGSUSED*/ 2385a6d42e7dSPeter Dunlap static void 2386a6d42e7dSPeter Dunlap iscsit_pp_cb(struct stmf_port_provider *pp, int cmd, void *arg, uint32_t flags) 2387a6d42e7dSPeter Dunlap { 2388a6d42e7dSPeter Dunlap it_config_t *cfg; 2389a6d42e7dSPeter Dunlap nvlist_t *nvl; 2390a6d42e7dSPeter Dunlap 2391a6d42e7dSPeter Dunlap if ((cmd != STMF_PROVIDER_DATA_UPDATED) || (arg == NULL)) { 2392a6d42e7dSPeter Dunlap return; 2393a6d42e7dSPeter Dunlap } 2394a6d42e7dSPeter Dunlap 2395a6d42e7dSPeter Dunlap nvl = (nvlist_t *)arg; 2396a6d42e7dSPeter Dunlap 2397a6d42e7dSPeter Dunlap /* Translate nvlist */ 2398a6d42e7dSPeter Dunlap if (it_nv_to_config(nvl, &cfg) != 0) { 2399a6d42e7dSPeter Dunlap cmn_err(CE_WARN, "Configuration is invalid"); 2400a6d42e7dSPeter Dunlap return; 2401a6d42e7dSPeter Dunlap } 2402a6d42e7dSPeter Dunlap 2403a6d42e7dSPeter Dunlap /* Update config */ 2404a6d42e7dSPeter Dunlap (void) iscsit_config_merge(cfg); 2405a6d42e7dSPeter Dunlap 2406a6d42e7dSPeter Dunlap it_config_free_cmn(cfg); 2407a6d42e7dSPeter Dunlap } 2408a6d42e7dSPeter Dunlap 2409a6d42e7dSPeter Dunlap 2410a6d42e7dSPeter Dunlap static it_cfg_status_t 2411a6d42e7dSPeter Dunlap iscsit_config_merge(it_config_t *in_cfg) 2412a6d42e7dSPeter Dunlap { 2413a6d42e7dSPeter Dunlap it_cfg_status_t status; 2414a6d42e7dSPeter Dunlap it_config_t *cfg; 2415a6d42e7dSPeter Dunlap it_config_t tmp_cfg; 2416a6d42e7dSPeter Dunlap list_t tpg_del_list; 2417a6d42e7dSPeter Dunlap 2418a6d42e7dSPeter Dunlap if (in_cfg) { 2419a6d42e7dSPeter Dunlap cfg = in_cfg; 2420a6d42e7dSPeter Dunlap } else { 2421a6d42e7dSPeter Dunlap /* Make empty config */ 2422a6d42e7dSPeter Dunlap bzero(&tmp_cfg, sizeof (tmp_cfg)); 2423a6d42e7dSPeter Dunlap cfg = &tmp_cfg; 2424a6d42e7dSPeter Dunlap } 2425a6d42e7dSPeter Dunlap 2426a6d42e7dSPeter Dunlap list_create(&tpg_del_list, sizeof (iscsit_tpg_t), 2427a6d42e7dSPeter Dunlap offsetof(iscsit_tpg_t, tpg_delete_ln)); 2428a6d42e7dSPeter Dunlap 2429a6d42e7dSPeter Dunlap /* 2430a6d42e7dSPeter Dunlap * Update targets, initiator contexts, target portal groups, 2431a6d42e7dSPeter Dunlap * and iSNS client 2432a6d42e7dSPeter Dunlap */ 2433a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_LOCK(RW_WRITER); 2434a6d42e7dSPeter Dunlap if (((status = iscsit_config_merge_tpg(cfg, &tpg_del_list)) 2435a6d42e7dSPeter Dunlap != 0) || 2436a6d42e7dSPeter Dunlap ((status = iscsit_config_merge_tgt(cfg)) != 0) || 2437a6d42e7dSPeter Dunlap ((status = iscsit_config_merge_ini(cfg)) != 0) || 2438a6d42e7dSPeter Dunlap ((status = isnst_config_merge(cfg)) != 0)) { 2439a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 2440a6d42e7dSPeter Dunlap return (status); 2441a6d42e7dSPeter Dunlap } 2442a6d42e7dSPeter Dunlap 2443a6d42e7dSPeter Dunlap /* Update other global config parameters */ 2444a6d42e7dSPeter Dunlap if (iscsit_global.global_props) { 2445a6d42e7dSPeter Dunlap nvlist_free(iscsit_global.global_props); 2446a6d42e7dSPeter Dunlap iscsit_global.global_props = NULL; 2447a6d42e7dSPeter Dunlap } 2448a6d42e7dSPeter Dunlap if (in_cfg) { 2449a6d42e7dSPeter Dunlap (void) nvlist_dup(cfg->config_global_properties, 2450a6d42e7dSPeter Dunlap &iscsit_global.global_props, KM_SLEEP); 2451a6d42e7dSPeter Dunlap } 2452a6d42e7dSPeter Dunlap ISCSIT_GLOBAL_UNLOCK(); 2453a6d42e7dSPeter Dunlap 2454a6d42e7dSPeter Dunlap iscsit_config_destroy_tpgs(&tpg_del_list); 2455a6d42e7dSPeter Dunlap 2456a6d42e7dSPeter Dunlap list_destroy(&tpg_del_list); 2457a6d42e7dSPeter Dunlap 2458a6d42e7dSPeter Dunlap return (ITCFG_SUCCESS); 2459a6d42e7dSPeter Dunlap } 2460a6d42e7dSPeter Dunlap 2461a6d42e7dSPeter Dunlap /* 2462a6d42e7dSPeter Dunlap * iscsit_sna_lt[e] 2463a6d42e7dSPeter Dunlap * 2464a6d42e7dSPeter Dunlap * Compare serial numbers using serial number arithmetic as defined in 2465a6d42e7dSPeter Dunlap * RFC 1982. 2466a6d42e7dSPeter Dunlap * 2467a6d42e7dSPeter Dunlap * NOTE: This code is duplicated in the isns server as well as iscsitgtd. It 2468a6d42e7dSPeter Dunlap * ought to be common. 2469a6d42e7dSPeter Dunlap */ 2470a6d42e7dSPeter Dunlap 2471a6d42e7dSPeter Dunlap static int 2472a6d42e7dSPeter Dunlap iscsit_sna_lt(uint32_t sn1, uint32_t sn2) 2473a6d42e7dSPeter Dunlap { 2474a6d42e7dSPeter Dunlap return ((sn1 != sn2) && 2475a6d42e7dSPeter Dunlap (((sn1 < sn2) && ((sn2 - sn1) < ISCSIT_SNA32_CHECK)) || 2476a6d42e7dSPeter Dunlap ((sn1 > sn2) && ((sn1 - sn2) > ISCSIT_SNA32_CHECK)))); 2477a6d42e7dSPeter Dunlap } 2478a6d42e7dSPeter Dunlap 2479a6d42e7dSPeter Dunlap static int 2480a6d42e7dSPeter Dunlap iscsit_sna_lte(uint32_t sn1, uint32_t sn2) 2481a6d42e7dSPeter Dunlap { 2482a6d42e7dSPeter Dunlap return ((sn1 == sn2) || 2483a6d42e7dSPeter Dunlap (((sn1 < sn2) && ((sn2 - sn1) < ISCSIT_SNA32_CHECK)) || 2484a6d42e7dSPeter Dunlap ((sn1 > sn2) && ((sn1 - sn2) > ISCSIT_SNA32_CHECK)))); 2485a6d42e7dSPeter Dunlap } 2486a6d42e7dSPeter Dunlap 2487a6d42e7dSPeter Dunlap 2488a6d42e7dSPeter Dunlap static boolean_t 2489a6d42e7dSPeter Dunlap iscsit_cmdsn_in_window(iscsit_conn_t *ict, uint32_t cmdsn) 2490a6d42e7dSPeter Dunlap { 2491a6d42e7dSPeter Dunlap iscsit_sess_t *ist = ict->ict_sess; 2492a6d42e7dSPeter Dunlap int rval = B_TRUE; 2493a6d42e7dSPeter Dunlap 2494a6d42e7dSPeter Dunlap ist = ict->ict_sess; 2495a6d42e7dSPeter Dunlap 2496a6d42e7dSPeter Dunlap rw_enter(&ist->ist_sn_rwlock, RW_READER); 2497a6d42e7dSPeter Dunlap 2498a6d42e7dSPeter Dunlap /* 2499a6d42e7dSPeter Dunlap * If cmdsn is less than ist_expcmdsn - iscsit_cmd_window() or 2500a6d42e7dSPeter Dunlap * greater than ist_expcmdsn, it's not in the window. 2501a6d42e7dSPeter Dunlap */ 2502a6d42e7dSPeter Dunlap 2503a6d42e7dSPeter Dunlap if (iscsit_sna_lt(cmdsn, (ist->ist_expcmdsn - iscsit_cmd_window())) || 2504a6d42e7dSPeter Dunlap !iscsit_sna_lte(cmdsn, ist->ist_expcmdsn)) { 2505a6d42e7dSPeter Dunlap rval = B_FALSE; 2506a6d42e7dSPeter Dunlap } 2507a6d42e7dSPeter Dunlap 2508a6d42e7dSPeter Dunlap rw_exit(&ist->ist_sn_rwlock); 2509a6d42e7dSPeter Dunlap 2510a6d42e7dSPeter Dunlap return (rval); 2511a6d42e7dSPeter Dunlap } 2512