a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * CDDL HEADER START
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * The contents of this file are subject to the terms of the
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Common Development and Distribution License (the "License").
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * You may not use this file except in compliance with the License.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * See the License for the specific language governing permissions
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * and limitations under the License.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * When distributing Covered Code, include this CDDL HEADER in each
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * If applicable, add the following below this CDDL HEADER, with the
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * fields enclosed by brackets "[]" replaced with your own identifying
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * information: Portions Copyright [yyyy] [name of copyright owner]
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * CDDL HEADER END
42bf653b44c42fc6b637ae50e590489d69399241Peter Gill * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
a481fa48e4b49ab092647a92bb0ea0edf9afc5ceRick McNeal * Copyright 2011, 2015 Nexenta Systems, Inc. All rights reserved.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptypedef struct {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_event_dispatch(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_created(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_onlining(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_online(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_stmf_online(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting_need_offline(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_offlining(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_offline(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_stmf_offline(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting_stmf_dereg(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting_stmf_dereg_fail(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_new_state(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_async_wait_ref(iscsit_tgt_t *tgt, idm_refcnt_cb_t *cb_func);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_lookup_tpgt_locked(iscsit_tgt_t *tgt, uint16_t tag);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tpg_portal_lookup_locked(iscsit_tpg_t *tpg,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_modify(iscsit_tgt_t *tgt, it_tgt_t *cfg_tgt);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_merge_tpgt(iscsit_tgt_t *tgt, it_tgt_t *cfg_tgt,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tpg_modify(iscsit_tpg_t *tpg, it_tpg_t *cfg_tpg);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_portal_create(iscsit_tpg_t *tpg, struct sockaddr_storage *sa);
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United Statesiscsit_portal_delete(iscsit_portal_t *portal);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Target state machine
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_sm_event(iscsit_tgt_t *tgt, iscsit_tgt_event_t event)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_event_locked(iscsit_tgt_t *tgt, iscsit_tgt_event_t event)
30e7468f8f41aa30ada067b2c1d5d284046514daPeter Dunlap * Use the target_sm_busy flag to keep the state machine single
30e7468f8f41aa30ada067b2c1d5d284046514daPeter Dunlap * threaded. This also serves as recursion avoidance since this
30e7468f8f41aa30ada067b2c1d5d284046514daPeter Dunlap * flag will always be set if we call iscsit_tgt_sm_event from
30e7468f8f41aa30ada067b2c1d5d284046514daPeter Dunlap * within the state machine code.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_event_dispatch(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap IDM_SM_LOG(CE_NOTE, "tgt_sm_event_dispatch: tgt %p event %s(%d)",
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void *)tgt, iscsit_te_name[ctx->te_ctx_event], ctx->te_ctx_event);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* State independent actions */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* State dependent actions */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_created(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt_sm_new_state(tgt, ctx, TS_DELETING_STMF_DEREG);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We're already offline but update to an equivelant
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * state just to note that STMF talked to us.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl(STMF_CMD_LPORT_OFFLINE_COMPLETE,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_onlining(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* TE_DELETE is handled in tgt_sm_event_dispatch() */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we are busy going
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl((ctx->te_ctx_event == TE_STMF_ONLINE_REQ) ?
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_online(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt_sm_new_state(tgt, ctx, TS_DELETING_NEED_OFFLINE);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* TE_DELETE is handled in tgt_sm_event_dispatch() */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we are busy going
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * online (waiting for acknowlegement from STMF)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl((ctx->te_ctx_event == TE_STMF_ONLINE_REQ) ?
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_stmf_online(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Deregister target with iSNS whenever we leave this state */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt_sm_new_state(tgt, ctx, TS_DELETING_NEED_OFFLINE);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Already online */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl(STMF_CMD_LPORT_ONLINE_COMPLETE,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting_need_offline(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* TE_DELETE is handled in tgt_sm_event_dispatch() */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we need to be offlined
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl(STMF_CMD_LPORT_ONLINE_COMPLETE,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_offlining(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* TE_DELETE is handled in tgt_sm_event_dispatch() */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we are busy going
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl((ctx->te_ctx_event == TE_STMF_ONLINE_REQ) ?
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_offline(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt_sm_new_state(tgt, ctx, TS_DELETING_STMF_DEREG);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* TE_DELETE is handled in tgt_sm_event_dispatch() */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we are busy going
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl((ctx->te_ctx_event == TE_STMF_ONLINE_REQ) ?
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_stmf_offline(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt_sm_new_state(tgt, ctx, TS_DELETING_STMF_DEREG);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Already offline */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl(STMF_CMD_LPORT_OFFLINE_COMPLETE,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting_stmf_dereg(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Terminal state, no events */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we are being deleted
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl((ctx->te_ctx_event == TE_STMF_ONLINE_REQ) ?
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt_sm_new_state(tgt, ctx, TS_DELETING_STMF_DEREG_FAIL);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting_stmf_dereg_fail(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Terminal state, no events */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we are being deleted
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl((ctx->te_ctx_event == TE_STMF_ONLINE_REQ) ?
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt_sm_new_state(tgt, ctx, TS_DELETING_STMF_DEREG);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_deleting(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Terminal state, no events */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We can't complete STMF's request since we are being deleted
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl((ctx->te_ctx_event == TE_STMF_ONLINE_REQ) ?
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Ignore */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Rather than guaranteeing the target state machine code will not
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * block for long periods of time (tying up this callout thread)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * we will queue a task on the taskq to send the retry event.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * If it fails we'll setup another timeout and try again later.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if (taskq_dispatch(iscsit_global.global_dispatch_taskq,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap iscsit_tgt_dereg_task, tgt, DDI_NOSLEEP) == NULL) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Dispatch failed, try again later */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap drv_usectohz(TGT_DEREG_RETRY_SECONDS * 1000000));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlaptgt_sm_new_state(iscsit_tgt_t *tgt, tgt_event_ctx_t *ctx,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap stmf_local_port_t *lport = tgt->target_stmf_lport;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Validate new state
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap IDM_SM_LOG(CE_NOTE, "tgt_sm_new_state: tgt %p, %s(%d) --> %s(%d)\n",
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void *) tgt, iscsit_ts_name[tgt->target_state], tgt->target_state,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_sm_audit_state_change(&tgt->target_state_audit, SAS_ISCSIT_TGT,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap scs.st_completion_status = STMF_TARGET_FAILURE;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Let STMF know the how the online operation completed.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * STMF will respond with an acknowlege later
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl(STMF_CMD_LPORT_ONLINE_COMPLETE, lport, &scs);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl(STMF_CMD_LPORT_OFFLINE, lport, &sci);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Async callback generates completion event */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap stmfrc = stmf_deregister_local_port(tgt->target_stmf_lport);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap iscsit_tgt_sm_event(tgt, TE_STMF_DEREG_SUCCESS);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Retry dereg in 1 second */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap drv_usectohz(TGT_DEREG_RETRY_SECONDS * 1000000));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap iscsit_tgt_async_wait_ref(tgt, iscsit_tgt_unref);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Target, TPGT, TPG utility functions
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States it_cfg_status_t itrc = ITCFG_SUCCESS;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 1. >> Lock <<
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 2. Removing deleted objects
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 3. Add deleted targets to global delete list
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 4. "delete" event to target state machine
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 5. >> Unlock <<
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 6. Create new targets, update modified targets
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (tgt = avl_first(&iscsit_global.global_target_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap next_tgt = AVL_NEXT(&iscsit_global.global_target_list, tgt);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if (it_tgt_lookup(cfg, tgt->target_name) == NULL) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_remove(&iscsit_global.global_target_list, tgt);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap &iscsit_global.global_deleted_target_list, tgt);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Now walk through the list of configured targets */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* See if we have an existing target */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt = iscsit_tgt_lookup_locked(cfg_tgt->tgt_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_add(&iscsit_global.global_target_list, tgt);
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States if (iscsit_tgt_modify(tgt, cfg_tgt) !=
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States IDM_STATUS_SUCCESS)
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States itrc = ITCFG_MISC_ERR;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Targets on the iscsit_global.global_deleted_target_list will remove
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * and destroy themselves when their associated state machines reach
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * the TS_DELETED state and all references are released.
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States return (itrc);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = iscsit_tgt_lookup_locked(target_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Use a dummy target for lookup, filling in all fields used in AVL
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * comparison.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((result = avl_find(&iscsit_global.global_target_list,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Each target is an STMF local port.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap lport = stmf_alloc(STMF_STRUCT_STMF_LOCAL_PORT,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sizeof (iscsit_tgt_t) + sizeof (scsi_devid_desc_t) +
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap strnlen(cfg_tgt->tgt_name, MAX_ISCSI_NODENAMELEN) + 1, 0);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Use pointer arithmetic to find scsi_devid_desc_t */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result->target_devid = (scsi_devid_desc_t *)(result + 1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) strcpy((char *)result->target_devid->ident, cfg_tgt->tgt_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap strnlen(cfg_tgt->tgt_name, MAX_ISCSI_NODENAMELEN);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result->target_devid->protocol_id = PROTOCOL_iSCSI;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result->target_devid->code_set = CODE_SET_ASCII;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result->target_devid->association = ID_IS_TARGET_PORT;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Store a shortcut to the target name */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result->target_name = (char *)result->target_devid->ident;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_sm_audit_init(&result->target_state_audit);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap mutex_init(&result->target_mutex, NULL, MUTEX_DEFAULT, NULL);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_create(&result->target_sess_list, iscsit_sess_avl_compare,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sizeof (iscsit_sess_t), offsetof(iscsit_sess_t, ist_tgt_ln));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_create(&result->target_tpgt_list, iscsit_tpgt_avl_compare,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sizeof (iscsit_tpgt_t), offsetof(iscsit_tpgt_t, tpgt_tgt_ln));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap list_create(&result->target_events, sizeof (tgt_event_ctx_t),
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_refcnt_init(&result->target_refcnt, result);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_refcnt_init(&result->target_sess_refcnt, result);
ca3b8945247d4cfb82a351e1a293910f66fbde81Yuri Pankov /* Set target alias */
ca3b8945247d4cfb82a351e1a293910f66fbde81Yuri Pankov if (nvlist_lookup_string(cfg_tgt->tgt_properties, "alias", &alias) == 0)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Finish initializing local port */
30e7468f8f41aa30ada067b2c1d5d284046514daPeter Dunlap * Would like infinite timeout, but this is about as long as can
30e7468f8f41aa30ada067b2c1d5d284046514daPeter Dunlap * be specified to stmf on a 32 bit kernel.
30e7468f8f41aa30ada067b2c1d5d284046514daPeter Dunlap lport->lport_abort_timeout = 2000; /* seconds */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap lport->lport_ds = iscsit_global.global_dbuf_store;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap lport->lport_xfer_data = &iscsit_xfer_scsi_data;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap lport->lport_send_status = &iscsit_send_scsi_status;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap lport->lport_task_free = &iscsit_lport_task_free;
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States /*
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States * We need a global hold until the STMF-ONLINE state machine
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States * completes. Acquire that hold now, in case we need to call
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States * iscsit_tgt_destroy, which will also release the hold.
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States */
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States iscsit_global_hold();
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Additional target modifications from config
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if (iscsit_tgt_modify(result, cfg_tgt) != IDM_STATUS_SUCCESS) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Register the target with STMF but not until we have all the
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * TPGT bindings and any other additional config setup. STMF
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * may immediately ask us to go online.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if (stmf_register_local_port(lport) != STMF_SUCCESS) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_modify(iscsit_tgt_t *tgt, it_tgt_t *cfg_tgt)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Merge TPGT */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap list_create(&tpgt_del_list, sizeof (iscsit_tpgt_t),
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) nvlist_dup(cfg_tgt->tgt_properties, &tgt->target_props,
ca3b8945247d4cfb82a351e1a293910f66fbde81Yuri Pankov /* Update alias */
ca3b8945247d4cfb82a351e1a293910f66fbde81Yuri Pankov if (nvlist_lookup_string(tgt->target_props, "alias", &alias) == 0)
ca3b8945247d4cfb82a351e1a293910f66fbde81Yuri Pankov tgt->target_stmf_lport->lport_alias = strdup(alias);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((idmrc = iscsit_tgt_merge_tpgt(tgt, cfg_tgt, &tpgt_del_list)) !=
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* This should never happen */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap cmn_err(CE_WARN, "Fail to configure TPGTs for "
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap "target %s, the target modification could not be "
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * If the target is truly modified (not newly created),
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * inform iSNS to update the target registration.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (cfg_tgt->tgt_generation > tgt->target_generation)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tgt->target_generation = cfg_tgt->tgt_generation;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_config_destroy_tpgts(list_t *tpgt_del_list)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap list_remove(&iscsit_global.global_deleted_target_list, tgt);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_async_wait_ref(iscsit_tgt_t *tgt, idm_refcnt_cb_t *cb_func)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_refcnt_async_wait_ref(&tgt->target_refcnt, cb_func);
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States ASSERT(tgt->target_state == TS_DELETING ||
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States (tgt->target_state == TS_CREATED &&
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States tgt->target_stmf_lport_registered == 0));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Destroy all target portal group tags
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap next_tpgt = AVL_NEXT(&tgt->target_tpgt_list, tpgt);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Destroy target
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap stmf_free(tgt->target_stmf_lport); /* Also frees "tgt' */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_avl_compare(const void *void_tgt1, const void *void_tgt2)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Sort by ISID first then TSIH
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = strcmp(tgt1->target_name, tgt2->target_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap } else if (result > 0) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_lookup_tpgt(iscsit_tgt_t *tgt, uint16_t tag)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = iscsit_tgt_lookup_tpgt_locked(tgt, tag);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_lookup_tpgt_locked(iscsit_tgt_t *tgt, uint16_t tag)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Caller holds tgt->target_mutex */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((result = avl_find(&tgt->target_tpgt_list, &tmp_tpgt, NULL)) !=
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_lookup_portal(iscsit_tgt_t *tgt, struct sockaddr_storage *sa,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Caller holds tgt->target_mutex */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tpgt = AVL_NEXT(&tgt->target_tpgt_list, tpgt)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap portal = iscsit_tpg_portal_lookup(tpgt->tpgt_tpg, sa);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_bind_sess(iscsit_tgt_t *tgt, iscsit_sess_t *sess)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Discovery session */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_add(&iscsit_global.global_discovery_sessions, sess);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_unbind_sess(iscsit_tgt_t *tgt, iscsit_sess_t *sess)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sess->ist_tgt = (iscsit_tgt_t *)SESS_UNBOUND_FROM_TGT;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Discovery session */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_remove(&iscsit_global.global_discovery_sessions, sess);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_lookup_sess(iscsit_tgt_t *tgt, char *initiator_name,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * If tgt is NULL then we are looking for a discovery session
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sess_avl = &iscsit_global.global_discovery_sessions;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * We'll try to find a session matching ISID + TSIH first. If we
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * can't find one then we will return the closest match. If the
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * caller needs an exact match it must compare the TSIH after
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * the session is returned.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * The reason we do this "fuzzy matching" is to allow matching
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * sessions with different TSIH values on the same AVL list. This
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * makes session reinstatement much easier since the new session can
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * live on the list at the same time as the old session is cleaning up.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap bcopy(isid, tmp_sess.ist_isid, ISCSI_ISID_LEN);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = avl_find(sess_avl, &tmp_sess, &where);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * avl_find_nearest() may return a result with a different ISID so
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * we should only return a result if the name and ISID match
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = avl_nearest(sess_avl, where, AVL_BEFORE);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (strcmp(result->ist_initiator_name, initiator_name) == 0) &&
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (memcmp(result->ist_isid, isid, ISCSI_ISID_LEN) == 0) &&
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = avl_nearest(sess_avl, where, AVL_AFTER);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (strcmp(result->ist_initiator_name, initiator_name) == 0) &&
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (memcmp(result->ist_isid, isid, ISCSI_ISID_LEN) == 0) &&
47715e7fd18d93fbdad6de94604baaa63665f0fbPriya Krishnan (iscsit_sess_check_hold(result) != IDM_STATUS_SUCCESS)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tgt_merge_tpgt(iscsit_tgt_t *tgt, it_tgt_t *cfg_tgt,
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States idm_status_t status = IDM_STATUS_SUCCESS;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 1. >> Lock <<
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 2. Removing all objects and place on a temp list
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 3. Add new objects
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 4. >> Unlock <<
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 5. tpgt_del_list contains deleted objects
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap next_tpgt = AVL_NEXT(&tgt->target_tpgt_list, tpgt);
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States if (cfg_tgt->tgt_tpgt_list != NULL) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Add currently defined TPGTs */
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States if (tpgt == NULL) {
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States /*
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States * There is a problem in the configuration we
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States * received from the ioctl -- a missing tpg.
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States * All the unbind operations have already
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States * taken place. To leave the system in a
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States * non-panic'd state, use the default tpgt.
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States */
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States status = IDM_STATUS_FAIL;
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States continue;
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States }
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States /* If no TPGTs defined, add the default TPGT */
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States if (avl_numnodes(&tgt->target_tpgt_list) == 0) {
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States tpgt = iscsit_tpgt_create_default();
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States if (tgt->target_state == TS_STMF_ONLINE) {
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States (void) iscsit_tpg_online(tpgt->tpgt_tpg);
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States }
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States avl_add(&tgt->target_tpgt_list, tpgt);
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States }
031f730c92edd32672189692ec7a76c1d6fbdcc3Peter Cudhea - Sun Microsystems - Burlington, MA United States return (status);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* This takes a reference on the TPG */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tpg = iscsit_tpg_lookup_locked(cfg_tpgt->tpgt_tpg_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = kmem_zalloc(sizeof (*result), KM_SLEEP);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = kmem_zalloc(sizeof (*result), KM_SLEEP);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result->tpgt_tpg = iscsit_global.global_default_tpg;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tpgt_avl_compare(const void *void_tpgt1, const void *void_tpgt2)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap ASSERT(tgt->target_sess_list.avl_numnodes == 0);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tpgt = AVL_NEXT(&tgt->target_tpgt_list, tpgt)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Offline all the tpgs we successfully onlined up to the failure */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tpgt = AVL_NEXT(&tgt->target_tpgt_list, tpgt)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) stmf_ctl(STMF_CMD_LPORT_OFFLINE_COMPLETE,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Offline target portal groups */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tpgt = AVL_NEXT(&tgt->target_tpgt_list, tpgt)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Close any active sessions */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * This is not a synchronous operation but after all
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * sessions have been cleaned up there will be no
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * more session-related holds on the target.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Wait for all the sessions to quiesce.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_refcnt_async_wait_ref(&tgt->target_sess_refcnt,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_config_merge_tpg(it_config_t *cfg, list_t *tpg_del_list)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 1. >> Lock <<
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 2. Removing deleted objects and place on a temp list
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 3. Add new objects
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 4. >> Unlock <<
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * 5. tpg_del_list contains objects to destroy
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (tpg = avl_first(&iscsit_global.global_tpg_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap next_tpg = AVL_NEXT(&iscsit_global.global_tpg_list, tpg);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if (it_tpg_lookup(cfg, tpg->tpg_name) == NULL) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * The policy around when to allow a target portal
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * group to be deleted is implemented in libiscsit.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * By the time the request gets to the kernel module
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * we expect that it conforms to policy so we will
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * cleanup all references to TPG and destroy it if it
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * is possible to do so.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_remove(&iscsit_global.global_tpg_list, tpg);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Now walk through the list of configured target portal groups */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* See if we have an existing target portal group */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap tpg = iscsit_tpg_lookup_locked(cfg_tpg->tpg_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_config_destroy_tpgs(list_t *tpg_del_list)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Now finish destroying the target portal groups */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Kill it */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) strlcpy(tmp_tpg.tpg_name, tpg_name, MAX_ISCSI_NODENAMELEN);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((result = avl_find(&iscsit_global.global_tpg_list,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap mutex_init(&tpg->tpg_mutex, NULL, MUTEX_DEFAULT, NULL);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) strlcpy(tpg->tpg_name, cfg_tpg->tpg_name, MAX_TPG_NAMELEN);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_create(&tpg->tpg_portal_list, iscsit_portal_avl_compare,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sizeof (iscsit_portal_t), offsetof(iscsit_portal_t, portal_tpg_ln));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tpg_modify(iscsit_tpg_t *tpg, it_tpg_t *cfg_tpg)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Update portals */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (portal = avl_first(&tpg->tpg_portal_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap next_portal = AVL_NEXT(&tpg->tpg_portal_list, portal);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if (it_portal_lookup(cfg_tpg, &portal->portal_addr) == NULL) {
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States iscsit_portal_delete(portal);
4f1d4f276e2ad1b7fd52a4f41ee299f0ef3a3a3cPriya Krishnan * If the last portal is deleted from the target
4f1d4f276e2ad1b7fd52a4f41ee299f0ef3a3a3cPriya Krishnan * portal group, then the tpg->tpg_online count
4f1d4f276e2ad1b7fd52a4f41ee299f0ef3a3a3cPriya Krishnan * must be decremented. The other two callers of
4f1d4f276e2ad1b7fd52a4f41ee299f0ef3a3a3cPriya Krishnan * iscsit_portal_delete() destroy the target portal
4f1d4f276e2ad1b7fd52a4f41ee299f0ef3a3a3cPriya Krishnan * after deleting the portal so it is not necessary
4f1d4f276e2ad1b7fd52a4f41ee299f0ef3a3a3cPriya Krishnan * to decrement the tpg->tpg_online count.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((portal = iscsit_tpg_portal_lookup_locked(tpg,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (portal = avl_first(&tpg->tpg_portal_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap next_portal = AVL_NEXT(&tpg->tpg_portal_list, portal);
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States iscsit_portal_delete(portal);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap mutex_init(&tpg->tpg_mutex, NULL, MUTEX_DEFAULT, NULL);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) strlcpy(tpg->tpg_name, ISCSIT_DEFAULT_TPG, MAX_TPG_NAMELEN);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_create(&tpg->tpg_portal_list, iscsit_portal_avl_compare,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sizeof (iscsit_portal_t), offsetof(iscsit_portal_t, portal_tpg_ln));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Now create default portal */
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States iscsit_portal_delete(portal);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tpg_avl_compare(const void *void_tpg1, const void *void_tpg2)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Sort by ISID first then TSIH
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = strcmp(tpg1->tpg_name, tpg2->tpg_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap } else if (result > 0) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (portal = avl_first(&tpg->tpg_portal_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap portal = AVL_NEXT(&tpg->tpg_portal_list, portal)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Offline all the portals we successfully onlined up to the failure */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (portal = avl_first(&tpg->tpg_portal_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap portal = AVL_NEXT(&tpg->tpg_portal_list, portal)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (portal = avl_first(&tpg->tpg_portal_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap portal = AVL_NEXT(&tpg->tpg_portal_list, portal)) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tpg_portal_lookup(iscsit_tpg_t *tpg, struct sockaddr_storage *sa)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = iscsit_tpg_portal_lookup_locked(tpg, sa);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_tpg_portal_lookup_locked(iscsit_tpg_t *tpg,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Caller holds tpg->tpg_mutex */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap bcopy(sa, &tmp_portal.portal_addr, sizeof (*sa));
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((result = avl_find(&tpg->tpg_portal_list, &tmp_portal, NULL)) !=
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_portal_create(iscsit_tpg_t *tpg, struct sockaddr_storage *sa)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap portal = kmem_zalloc(sizeof (*portal), KM_SLEEP);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * If (sa == NULL) then we are being asked to create the default
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * portal -- targets will use this portal when no portals are
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * explicitly configured.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_refcnt_init(&portal->portal_refcnt, portal);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Add this portal to the list
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United Statesiscsit_portal_delete(iscsit_portal_t *portal)
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States if (portal->portal_online > 0) {
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States iscsit_portal_offline(portal);
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States }
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States if (portal->portal_online == 0) {
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States ASSERT(portal->portal_svc == NULL);
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States idm_refcnt_destroy(&portal->portal_refcnt);
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States kmem_free(portal, sizeof (*portal));
d0a3a9981c0bb64387654107335322769fcf9c68Peter Cudhea - Sun Microsystems - Burlington, MA United States }
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_portal_avl_compare(const void *void_portal1, const void *void_portal2)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Compare ports, then address family, then ip address
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * ports are the same
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * address families are the same
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap in61 = &((struct sockaddr_in6 *)ss1)->sin6_addr;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap in62 = &((struct sockaddr_in6 *)ss2)->sin6_addr;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (i = 0; i < 4; i++) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap else if (in61->s6_addr32[i] < in62->s6_addr32[i])
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap "iscsit_portal_avl_compare: unknown ss_family %d",
07a2bfd1dc0b943009fd0adbf34cb344095e378fPeter Cudhea - Sun Microsystems - Burlington, MA United States idm_status_t rc = 0;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Caller holds parent TPG mutex */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * If there is no existing IDM service instance for this port,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * create one. If the service exists, then the lookup,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * creates a reference on the existing service.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sin = (struct sockaddr_in *)&portal->portal_addr;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((svc = idm_tgt_svc_lookup(port)) == NULL) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sr.sr_conn_ops.icb_rx_scsi_cmd = &iscsit_op_scsi_cmd;
a481fa48e4b49ab092647a92bb0ea0edf9afc5ceRick McNeal sr.sr_conn_ops.icb_rx_scsi_rsp = &iscsit_rx_scsi_rsp;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sr.sr_conn_ops.icb_rx_error = &iscsit_rx_pdu_error;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sr.sr_conn_ops.icb_task_aborted = &iscsit_task_aborted;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap sr.sr_conn_ops.icb_build_hdr = &iscsit_build_hdr;
72cf314316bed51cd2e5fd0cb021a9725316a6b0peter dunlap sr.sr_conn_ops.icb_keepalive = &iscsit_keepalive;
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* Get reference on the service we just created */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap if ((rc = idm_tgt_svc_online(svc)) != IDM_STATUS_SUCCESS) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Only call iSNS for first online
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Only call iSNS for last offline
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap /* If service is unreferenced, destroy it too */
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap idm_tgt_svc_rele_and_destroy(portal->portal_svc);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Initiator objects are so simple we will just destroy all the current
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * objects and build new ones. Nothing should ever reference an
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * initator object.. instead just lookup the initiator object and
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * grab the properties while holding the global config lock.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap for (ini = avl_first(&iscsit_global.global_ini_list);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap next_ini = AVL_NEXT(&iscsit_global.global_ini_list, ini);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap avl_remove(&iscsit_global.global_ini_list, ini);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap ini = kmem_zalloc(sizeof (iscsit_ini_t), KM_SLEEP);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) strlcpy(ini->ini_name, cfg_ini->ini_name,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) nvlist_dup(cfg_ini->ini_properties, &ini->ini_props,
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlapiscsit_ini_avl_compare(const void *void_ini1, const void *void_ini2)
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Sort by ISID first then TSIH
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap result = strcmp(ini1->ini_name, ini2->ini_name);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap return (-1);
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap } else if (result > 0) {
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * Use a dummy target for lookup, filling in all fields used in AVL
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap * comparison.
a6d42e7d71324c5193c3b94d57d96ba2925d52e1Peter Dunlap (void) strlcpy(tmp_ini.ini_name, ini_name, MAX_ISCSI_NODENAMELEN);