/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * sf - Solaris Fibre Channel driver * * This module implements some of the Fibre Channel FC-4 layer, converting * from FC frames to SCSI and back. (Note: no sequence management is done * here, though.) */ #if defined(lint) && !defined(DEBUG) #define DEBUG 1 #endif /* * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX * Need to use the ugly RAID LUN mappings in FCP Annex D * to prevent SCSA from barfing. This *REALLY* needs to * be addressed by the standards committee. */ #define RAID_LUNS 1 #ifdef DEBUG static int sfdebug = 0; #include #define SF_DEBUG(level, args) \ if (sfdebug >= (level)) sf_log args #else #define SF_DEBUG(level, args) #endif static int sf_bus_config_debug = 0; /* Why do I have to do this? */ #define offsetof(s, m) (size_t)(&(((s *)0)->m)) #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int sf_info(dev_info_t *, ddi_info_cmd_t, void *, void **); static int sf_attach(dev_info_t *, ddi_attach_cmd_t); static int sf_detach(dev_info_t *, ddi_detach_cmd_t); static void sf_softstate_unlink(struct sf *); static int sf_scsi_bus_config(dev_info_t *parent, uint_t flag, ddi_bus_config_op_t op, void *arg, dev_info_t **childp); static int sf_scsi_bus_unconfig(dev_info_t *parent, uint_t flag, ddi_bus_config_op_t op, void *arg); static int sf_scsi_tgt_init(dev_info_t *, dev_info_t *, scsi_hba_tran_t *, struct scsi_device *); static void sf_scsi_tgt_free(dev_info_t *, dev_info_t *, scsi_hba_tran_t *, struct scsi_device *); static int sf_pkt_alloc_extern(struct sf *, struct sf_pkt *, int, int, int); static void sf_pkt_destroy_extern(struct sf *, struct sf_pkt *); static struct scsi_pkt *sf_scsi_init_pkt(struct scsi_address *, struct scsi_pkt *, struct buf *, int, int, int, int, int (*)(), caddr_t); static void sf_scsi_destroy_pkt(struct scsi_address *, struct scsi_pkt *); static void sf_scsi_dmafree(struct scsi_address *, struct scsi_pkt *); static void sf_scsi_sync_pkt(struct scsi_address *, struct scsi_pkt *); static int sf_scsi_reset_notify(struct scsi_address *, int, void (*)(caddr_t), caddr_t); static int sf_scsi_get_name(struct scsi_device *, char *, int); static int sf_scsi_get_bus_addr(struct scsi_device *, char *, int); static int sf_add_cr_pool(struct sf *); static int sf_cr_alloc(struct sf *, struct sf_pkt *, int (*)()); static void sf_cr_free(struct sf_cr_pool *, struct sf_pkt *); static void sf_crpool_free(struct sf *); static int sf_kmem_cache_constructor(void *, void *, int); static void sf_kmem_cache_destructor(void *, void *); static void sf_statec_callback(void *, int); static int sf_login(struct sf *, uchar_t, uchar_t, uint_t, int); static int sf_els_transport(struct sf *, struct sf_els_hdr *); static void sf_els_callback(struct fcal_packet *); static int sf_do_prli(struct sf *, struct sf_els_hdr *, struct la_els_logi *); static int sf_do_adisc(struct sf *, struct sf_els_hdr *); static int sf_do_reportlun(struct sf *, struct sf_els_hdr *, struct sf_target *); static void sf_reportlun_callback(struct fcal_packet *); static int sf_do_inquiry(struct sf *, struct sf_els_hdr *, struct sf_target *); static void sf_inq_callback(struct fcal_packet *); static struct fcal_packet *sf_els_alloc(struct sf *, uchar_t, int, int, int, caddr_t *, caddr_t *); static void sf_els_free(struct fcal_packet *); static struct sf_target *sf_create_target(struct sf *, struct sf_els_hdr *, int, int64_t); #ifdef RAID_LUNS static struct sf_target *sf_lookup_target(struct sf *, uchar_t *, int); #else static struct sf_target *sf_lookup_target(struct sf *, uchar_t *, int64_t); #endif static void sf_finish_init(struct sf *, int); static void sf_offline_target(struct sf *, struct sf_target *); static void sf_create_devinfo(struct sf *, struct sf_target *, int); static int sf_create_props(dev_info_t *, struct sf_target *, int); static int sf_commoncap(struct scsi_address *, char *, int, int, int); static int sf_getcap(struct scsi_address *, char *, int); static int sf_setcap(struct scsi_address *, char *, int, int); static int sf_abort(struct scsi_address *, struct scsi_pkt *); static int sf_reset(struct scsi_address *, int); static void sf_abort_all(struct sf *, struct sf_target *, int, int, int); static int sf_start(struct scsi_address *, struct scsi_pkt *); static int sf_start_internal(struct sf *, struct sf_pkt *); static void sf_fill_ids(struct sf *, struct sf_pkt *, struct sf_target *); static int sf_prepare_pkt(struct sf *, struct sf_pkt *, struct sf_target *); static int sf_dopoll(struct sf *, struct sf_pkt *); static void sf_cmd_callback(struct fcal_packet *); static void sf_throttle(struct sf *); static void sf_watch(void *); static void sf_throttle_start(struct sf *); static void sf_check_targets(struct sf *); static void sf_check_reset_delay(void *); static int sf_target_timeout(struct sf *, struct sf_pkt *); static void sf_force_lip(struct sf *); static void sf_unsol_els_callback(void *, soc_response_t *, caddr_t); static struct sf_els_hdr *sf_els_timeout(struct sf *, struct sf_els_hdr *); /*PRINTFLIKE3*/ static void sf_log(struct sf *, int, const char *, ...); static int sf_kstat_update(kstat_t *, int); static int sf_open(dev_t *, int, int, cred_t *); static int sf_close(dev_t, int, int, cred_t *); static int sf_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); static struct sf_target *sf_get_target_from_dip(struct sf *, dev_info_t *); static int sf_bus_get_eventcookie(dev_info_t *, dev_info_t *, char *, ddi_eventcookie_t *); static int sf_bus_add_eventcall(dev_info_t *, dev_info_t *, ddi_eventcookie_t, void (*)(), void *, ddi_callback_id_t *cb_id); static int sf_bus_remove_eventcall(dev_info_t *devi, ddi_callback_id_t cb_id); static int sf_bus_post_event(dev_info_t *, dev_info_t *, ddi_eventcookie_t, void *); static void sf_hp_daemon(void *); /* * this is required to be able to supply a control node * where ioctls can be executed */ struct cb_ops sf_cb_ops = { sf_open, /* open */ sf_close, /* close */ nodev, /* strategy */ nodev, /* print */ nodev, /* dump */ nodev, /* read */ nodev, /* write */ sf_ioctl, /* ioctl */ nodev, /* devmap */ nodev, /* mmap */ nodev, /* segmap */ nochpoll, /* poll */ ddi_prop_op, /* cb_prop_op */ 0, /* streamtab */ D_MP | D_NEW | D_HOTPLUG /* driver flags */ }; /* * autoconfiguration routines. */ static struct dev_ops sf_ops = { DEVO_REV, /* devo_rev, */ 0, /* refcnt */ sf_info, /* info */ nulldev, /* identify */ nulldev, /* probe */ sf_attach, /* attach */ sf_detach, /* detach */ nodev, /* reset */ &sf_cb_ops, /* driver operations */ NULL, /* bus operations */ NULL, /* power management */ ddi_quiesce_not_supported, /* devo_quiesce */ }; /* to ensure this module gets loaded in memory when we do */ char _depends_on[] = "misc/scsi"; #define SF_NAME "FC-AL FCP Nexus Driver" /* Name of the module. */ static char sf_version[] = "1.72 08/19/2008"; /* version of the module */ static struct modldrv modldrv = { &mod_driverops, /* Type of module. This one is a driver */ SF_NAME, &sf_ops, /* driver ops */ }; static struct modlinkage modlinkage = { MODREV_1, (void *)&modldrv, NULL }; /* XXXXXX The following is here to handle broken targets -- remove it later */ static int sf_reportlun_forever = 0; /* XXXXXX */ static int sf_lip_on_plogo = 0; static int sf_els_retries = SF_ELS_RETRIES; static struct sf *sf_head = NULL; static int sf_target_scan_cnt = 4; static int sf_pkt_scan_cnt = 5; static int sf_pool_scan_cnt = 1800; static void *sf_state = NULL; static int sf_watchdog_init = 0; static int sf_watchdog_time = 0; static int sf_watchdog_timeout = 1; static int sf_watchdog_tick; static int sf_watch_running = 0; static timeout_id_t sf_watchdog_id; static timeout_id_t sf_reset_timeout_id; static int sf_max_targets = SF_MAX_TARGETS; static kmutex_t sf_global_mutex; static int sf_core = 0; int *sf_token = NULL; /* Must not be static or lint complains. */ static kcondvar_t sf_watch_cv; extern pri_t minclsyspri; static ddi_eventcookie_t sf_insert_eid; static ddi_eventcookie_t sf_remove_eid; static ndi_event_definition_t sf_event_defs[] = { { SF_EVENT_TAG_INSERT, FCAL_INSERT_EVENT, EPL_KERNEL, 0 }, { SF_EVENT_TAG_REMOVE, FCAL_REMOVE_EVENT, EPL_INTERRUPT, 0 } }; #define SF_N_NDI_EVENTS \ (sizeof (sf_event_defs) / sizeof (ndi_event_definition_t)) #ifdef DEBUG static int sf_lip_flag = 1; /* bool: to allow LIPs */ static int sf_reset_flag = 1; /* bool: to allow reset after LIP */ static int sf_abort_flag = 0; /* bool: to do just one abort */ #endif extern int64_t ddi_get_lbolt64(void); /* * for converting between target number (switch) and hard address/AL_PA */ static uchar_t sf_switch_to_alpa[] = { 0xef, 0xe8, 0xe4, 0xe2, 0xe1, 0xe0, 0xdc, 0xda, 0xd9, 0xd6, 0xd5, 0xd4, 0xd3, 0xd2, 0xd1, 0xce, 0xcd, 0xcc, 0xcb, 0xca, 0xc9, 0xc7, 0xc6, 0xc5, 0xc3, 0xbc, 0xba, 0xb9, 0xb6, 0xb5, 0xb4, 0xb3, 0xb2, 0xb1, 0xae, 0xad, 0xac, 0xab, 0xaa, 0xa9, 0xa7, 0xa6, 0xa5, 0xa3, 0x9f, 0x9e, 0x9d, 0x9b, 0x98, 0x97, 0x90, 0x8f, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7c, 0x7a, 0x79, 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6e, 0x6d, 0x6c, 0x6b, 0x6a, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5c, 0x5a, 0x59, 0x56, 0x55, 0x54, 0x53, 0x52, 0x51, 0x4e, 0x4d, 0x4c, 0x4b, 0x4a, 0x49, 0x47, 0x46, 0x45, 0x43, 0x3c, 0x3a, 0x39, 0x36, 0x35, 0x34, 0x33, 0x32, 0x31, 0x2e, 0x2d, 0x2c, 0x2b, 0x2a, 0x29, 0x27, 0x26, 0x25, 0x23, 0x1f, 0x1e, 0x1d, 0x1b, 0x18, 0x17, 0x10, 0x0f, 0x08, 0x04, 0x02, 0x01 }; static uchar_t sf_alpa_to_switch[] = { 0x00, 0x7d, 0x7c, 0x00, 0x7b, 0x00, 0x00, 0x00, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x79, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x77, 0x76, 0x00, 0x00, 0x75, 0x00, 0x74, 0x73, 0x72, 0x00, 0x00, 0x00, 0x71, 0x00, 0x70, 0x6f, 0x6e, 0x00, 0x6d, 0x6c, 0x6b, 0x6a, 0x69, 0x68, 0x00, 0x00, 0x67, 0x66, 0x65, 0x64, 0x63, 0x62, 0x00, 0x00, 0x61, 0x60, 0x00, 0x5f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5e, 0x00, 0x5d, 0x5c, 0x5b, 0x00, 0x5a, 0x59, 0x58, 0x57, 0x56, 0x55, 0x00, 0x00, 0x54, 0x53, 0x52, 0x51, 0x50, 0x4f, 0x00, 0x00, 0x4e, 0x4d, 0x00, 0x4c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4b, 0x00, 0x4a, 0x49, 0x48, 0x00, 0x47, 0x46, 0x45, 0x44, 0x43, 0x42, 0x00, 0x00, 0x41, 0x40, 0x3f, 0x3e, 0x3d, 0x3c, 0x00, 0x00, 0x3b, 0x3a, 0x00, 0x39, 0x00, 0x00, 0x00, 0x38, 0x37, 0x36, 0x00, 0x35, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x31, 0x30, 0x00, 0x00, 0x2f, 0x00, 0x2e, 0x2d, 0x2c, 0x00, 0x00, 0x00, 0x2b, 0x00, 0x2a, 0x29, 0x28, 0x00, 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x00, 0x00, 0x21, 0x20, 0x1f, 0x1e, 0x1d, 0x1c, 0x00, 0x00, 0x1b, 0x1a, 0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x17, 0x16, 0x15, 0x00, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0f, 0x00, 0x00, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x00, 0x00, 0x08, 0x07, 0x00, 0x06, 0x00, 0x00, 0x00, 0x05, 0x04, 0x03, 0x00, 0x02, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; /* * these macros call the proper transport-layer function given * a particular transport */ #define soc_transport(a, b, c, d) (*a->fcal_ops->fcal_transport)(b, c, d) #define soc_transport_poll(a, b, c, d)\ (*a->fcal_ops->fcal_transport_poll)(b, c, d) #define soc_get_lilp_map(a, b, c, d, e)\ (*a->fcal_ops->fcal_lilp_map)(b, c, d, e) #define soc_force_lip(a, b, c, d, e)\ (*a->fcal_ops->fcal_force_lip)(b, c, d, e) #define soc_abort(a, b, c, d, e)\ (*a->fcal_ops->fcal_abort_cmd)(b, c, d, e) #define soc_force_reset(a, b, c, d)\ (*a->fcal_ops->fcal_force_reset)(b, c, d) #define soc_add_ulp(a, b, c, d, e, f, g, h)\ (*a->fcal_ops->fcal_add_ulp)(b, c, d, e, f, g, h) #define soc_remove_ulp(a, b, c, d, e)\ (*a->fcal_ops->fcal_remove_ulp)(b, c, d, e) #define soc_take_core(a, b) (*a->fcal_ops->fcal_take_core)(b) /* power management property defines (should be in a common include file?) */ #define PM_HARDWARE_STATE_PROP "pm-hardware-state" #define PM_NEEDS_SUSPEND_RESUME "needs-suspend-resume" /* node properties */ #define NODE_WWN_PROP "node-wwn" #define PORT_WWN_PROP "port-wwn" #define LIP_CNT_PROP "lip-count" #define TARGET_PROP "target" #define LUN_PROP "lun" /* * initialize this driver and install this module */ int _init(void) { int i; i = ddi_soft_state_init(&sf_state, sizeof (struct sf), SF_INIT_ITEMS); if (i != 0) return (i); if ((i = scsi_hba_init(&modlinkage)) != 0) { ddi_soft_state_fini(&sf_state); return (i); } mutex_init(&sf_global_mutex, NULL, MUTEX_DRIVER, NULL); sf_watch_running = 0; cv_init(&sf_watch_cv, NULL, CV_DRIVER, NULL); if ((i = mod_install(&modlinkage)) != 0) { mutex_destroy(&sf_global_mutex); cv_destroy(&sf_watch_cv); scsi_hba_fini(&modlinkage); ddi_soft_state_fini(&sf_state); return (i); } return (i); } /* * remove this driver module from the system */ int _fini(void) { int i; if ((i = mod_remove(&modlinkage)) == 0) { scsi_hba_fini(&modlinkage); mutex_destroy(&sf_global_mutex); cv_destroy(&sf_watch_cv); ddi_soft_state_fini(&sf_state); } return (i); } int _info(struct modinfo *modinfop) { return (mod_info(&modlinkage, modinfop)); } /* * Given the device number return the devinfo pointer or instance */ /*ARGSUSED*/ static int sf_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) { int instance = SF_MINOR2INST(getminor((dev_t)arg)); struct sf *sf; switch (infocmd) { case DDI_INFO_DEVT2DEVINFO: sf = ddi_get_soft_state(sf_state, instance); if (sf != NULL) *result = sf->sf_dip; else { *result = NULL; return (DDI_FAILURE); } break; case DDI_INFO_DEVT2INSTANCE: *result = (void *)(uintptr_t)instance; break; default: return (DDI_FAILURE); } return (DDI_SUCCESS); } /* * either attach or resume this driver */ static int sf_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) { int instance; int mutex_initted = FALSE; uint_t ccount; size_t i, real_size; struct fcal_transport *handle; char buf[64]; struct sf *sf, *tsf; scsi_hba_tran_t *tran = NULL; int handle_bound = FALSE; kthread_t *tp; switch ((int)cmd) { case DDI_RESUME: /* * we've previously been SF_STATE_OFFLINEd by a DDI_SUSPEND, * so time to undo that and get going again by forcing a * lip */ instance = ddi_get_instance(dip); sf = ddi_get_soft_state(sf_state, instance); SF_DEBUG(2, (sf, CE_CONT, "sf_attach: DDI_RESUME for sf%d\n", instance)); if (sf == NULL) { cmn_err(CE_WARN, "sf%d: bad soft state", instance); return (DDI_FAILURE); } /* * clear suspended flag so that normal operations can resume */ mutex_enter(&sf->sf_mutex); sf->sf_state &= ~SF_STATE_SUSPENDED; mutex_exit(&sf->sf_mutex); /* * force a login by setting our state to offline */ sf->sf_timer = sf_watchdog_time + SF_OFFLINE_TIMEOUT; sf->sf_state = SF_STATE_OFFLINE; /* * call transport routine to register state change and * ELS callback routines (to register us as a ULP) */ soc_add_ulp(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, TYPE_SCSI_FCP, sf_statec_callback, sf_unsol_els_callback, NULL, sf); /* * call transport routine to force loop initialization */ (void) soc_force_lip(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, 0, FCAL_NO_LIP); /* * increment watchdog init flag, setting watchdog timeout * if we are the first (since somebody has to do it) */ mutex_enter(&sf_global_mutex); if (!sf_watchdog_init++) { mutex_exit(&sf_global_mutex); sf_watchdog_id = timeout(sf_watch, (caddr_t)0, sf_watchdog_tick); } else { mutex_exit(&sf_global_mutex); } return (DDI_SUCCESS); case DDI_ATTACH: /* * this instance attaching for the first time */ instance = ddi_get_instance(dip); if (ddi_soft_state_zalloc(sf_state, instance) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf%d: failed to allocate soft state", instance); return (DDI_FAILURE); } sf = ddi_get_soft_state(sf_state, instance); SF_DEBUG(4, (sf, CE_CONT, "sf_attach: DDI_ATTACH for sf%d\n", instance)); if (sf == NULL) { /* this shouldn't happen since we just allocated it */ cmn_err(CE_WARN, "sf%d: bad soft state", instance); return (DDI_FAILURE); } /* * from this point on, if there's an error, we must de-allocate * soft state before returning DDI_FAILURE */ if ((handle = ddi_get_parent_data(dip)) == NULL) { cmn_err(CE_WARN, "sf%d: failed to obtain transport handle", instance); goto fail; } /* fill in our soft state structure */ sf->sf_dip = dip; sf->sf_state = SF_STATE_INIT; sf->sf_throttle = handle->fcal_cmdmax; sf->sf_sochandle = handle; sf->sf_socp = handle->fcal_handle; sf->sf_check_n_close = 0; /* create a command/response buffer pool for this instance */ if (sf_add_cr_pool(sf) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf%d: failed to allocate command/response pool", instance); goto fail; } /* create a a cache for this instance */ (void) sprintf(buf, "sf%d_cache", instance); sf->sf_pkt_cache = kmem_cache_create(buf, sizeof (fcal_packet_t) + sizeof (struct sf_pkt) + scsi_pkt_size(), 8, sf_kmem_cache_constructor, sf_kmem_cache_destructor, NULL, NULL, NULL, 0); if (sf->sf_pkt_cache == NULL) { cmn_err(CE_WARN, "sf%d: failed to allocate kmem cache", instance); goto fail; } /* set up a handle and allocate memory for DMA */ if (ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle-> fcal_dmaattr, DDI_DMA_DONTWAIT, NULL, &sf-> sf_lilp_dmahandle) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf%d: failed to allocate dma handle for lilp map", instance); goto fail; } i = sizeof (struct fcal_lilp_map) + 1; if (ddi_dma_mem_alloc(sf->sf_lilp_dmahandle, i, sf->sf_sochandle-> fcal_accattr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, (caddr_t *)&sf->sf_lilp_map, &real_size, &sf->sf_lilp_acchandle) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf%d: failed to allocate lilp map", instance); goto fail; } if (real_size < i) { /* no error message ??? */ goto fail; /* trouble allocating memory */ } /* * set up the address for the DMA transfers (getting a cookie) */ if (ddi_dma_addr_bind_handle(sf->sf_lilp_dmahandle, NULL, (caddr_t)sf->sf_lilp_map, real_size, DDI_DMA_READ | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &sf->sf_lilp_dmacookie, &ccount) != DDI_DMA_MAPPED) { cmn_err(CE_WARN, "sf%d: failed to bind dma handle for lilp map", instance); goto fail; } handle_bound = TRUE; /* ensure only one cookie was allocated */ if (ccount != 1) { goto fail; } /* ensure LILP map and DMA cookie addresses are even?? */ sf->sf_lilp_map = (struct fcal_lilp_map *)(((uintptr_t)sf-> sf_lilp_map + 1) & ~1); sf->sf_lilp_dmacookie.dmac_address = (sf-> sf_lilp_dmacookie.dmac_address + 1) & ~1; /* set up all of our mutexes and condition variables */ mutex_init(&sf->sf_mutex, NULL, MUTEX_DRIVER, NULL); mutex_init(&sf->sf_cmd_mutex, NULL, MUTEX_DRIVER, NULL); mutex_init(&sf->sf_cr_mutex, NULL, MUTEX_DRIVER, NULL); mutex_init(&sf->sf_hp_daemon_mutex, NULL, MUTEX_DRIVER, NULL); cv_init(&sf->sf_cr_cv, NULL, CV_DRIVER, NULL); cv_init(&sf->sf_hp_daemon_cv, NULL, CV_DRIVER, NULL); mutex_initted = TRUE; /* create our devctl minor node */ if (ddi_create_minor_node(dip, "devctl", S_IFCHR, SF_INST2DEVCTL_MINOR(instance), DDI_NT_NEXUS, 0) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf%d: ddi_create_minor_node failed" " for devctl", instance); goto fail; } /* create fc minor node */ if (ddi_create_minor_node(dip, "fc", S_IFCHR, SF_INST2FC_MINOR(instance), DDI_NT_FC_ATTACHMENT_POINT, 0) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf%d: ddi_create_minor_node failed" " for fc", instance); goto fail; } /* allocate a SCSI transport structure */ tran = scsi_hba_tran_alloc(dip, 0); if (tran == NULL) { /* remove all minor nodes created */ ddi_remove_minor_node(dip, NULL); cmn_err(CE_WARN, "sf%d: scsi_hba_tran_alloc failed", instance); goto fail; } /* Indicate that we are 'sizeof (scsi_*(9S))' clean. */ scsi_size_clean(dip); /* SCSI_SIZE_CLEAN_VERIFY ok */ /* save ptr to new transport structure and fill it in */ sf->sf_tran = tran; tran->tran_hba_private = sf; tran->tran_tgt_private = NULL; tran->tran_tgt_init = sf_scsi_tgt_init; tran->tran_tgt_probe = NULL; tran->tran_tgt_free = sf_scsi_tgt_free; tran->tran_start = sf_start; tran->tran_abort = sf_abort; tran->tran_reset = sf_reset; tran->tran_getcap = sf_getcap; tran->tran_setcap = sf_setcap; tran->tran_init_pkt = sf_scsi_init_pkt; tran->tran_destroy_pkt = sf_scsi_destroy_pkt; tran->tran_dmafree = sf_scsi_dmafree; tran->tran_sync_pkt = sf_scsi_sync_pkt; tran->tran_reset_notify = sf_scsi_reset_notify; /* * register event notification routines with scsa */ tran->tran_get_eventcookie = sf_bus_get_eventcookie; tran->tran_add_eventcall = sf_bus_add_eventcall; tran->tran_remove_eventcall = sf_bus_remove_eventcall; tran->tran_post_event = sf_bus_post_event; /* * register bus configure/unconfigure */ tran->tran_bus_config = sf_scsi_bus_config; tran->tran_bus_unconfig = sf_scsi_bus_unconfig; /* * allocate an ndi event handle */ sf->sf_event_defs = (ndi_event_definition_t *) kmem_zalloc(sizeof (sf_event_defs), KM_SLEEP); bcopy(sf_event_defs, sf->sf_event_defs, sizeof (sf_event_defs)); (void) ndi_event_alloc_hdl(dip, NULL, &sf->sf_event_hdl, NDI_SLEEP); sf->sf_events.ndi_events_version = NDI_EVENTS_REV1; sf->sf_events.ndi_n_events = SF_N_NDI_EVENTS; sf->sf_events.ndi_event_defs = sf->sf_event_defs; if (ndi_event_bind_set(sf->sf_event_hdl, &sf->sf_events, NDI_SLEEP) != NDI_SUCCESS) { goto fail; } tran->tran_get_name = sf_scsi_get_name; tran->tran_get_bus_addr = sf_scsi_get_bus_addr; /* setup and attach SCSI hba transport */ if (scsi_hba_attach_setup(dip, sf->sf_sochandle-> fcal_dmaattr, tran, SCSI_HBA_TRAN_CLONE) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf%d: scsi_hba_attach_setup failed", instance); goto fail; } /* set up kstats */ if ((sf->sf_ksp = kstat_create("sf", instance, "statistics", "controller", KSTAT_TYPE_RAW, sizeof (struct sf_stats), KSTAT_FLAG_VIRTUAL)) == NULL) { cmn_err(CE_WARN, "sf%d: failed to create kstat", instance); } else { sf->sf_stats.version = 2; (void) sprintf(sf->sf_stats.drvr_name, "%s: %s", SF_NAME, sf_version); sf->sf_ksp->ks_data = (void *)&sf->sf_stats; sf->sf_ksp->ks_private = sf; sf->sf_ksp->ks_update = sf_kstat_update; kstat_install(sf->sf_ksp); } /* create the hotplug thread */ mutex_enter(&sf->sf_hp_daemon_mutex); tp = thread_create(NULL, 0, (void (*)())sf_hp_daemon, sf, 0, &p0, TS_RUN, minclsyspri); sf->sf_hp_tid = tp->t_did; mutex_exit(&sf->sf_hp_daemon_mutex); /* add this soft state instance to the head of the list */ mutex_enter(&sf_global_mutex); sf->sf_next = sf_head; tsf = sf_head; sf_head = sf; /* * find entry in list that has the same FC-AL handle (if any) */ while (tsf != NULL) { if (tsf->sf_socp == sf->sf_socp) { break; /* found matching entry */ } tsf = tsf->sf_next; } if (tsf != NULL) { /* if we found a matching entry keep track of it */ sf->sf_sibling = tsf; } /* * increment watchdog init flag, setting watchdog timeout * if we are the first (since somebody has to do it) */ if (!sf_watchdog_init++) { mutex_exit(&sf_global_mutex); sf_watchdog_tick = sf_watchdog_timeout * drv_usectohz(1000000); sf_watchdog_id = timeout(sf_watch, NULL, sf_watchdog_tick); } else { mutex_exit(&sf_global_mutex); } if (tsf != NULL) { /* * set up matching entry to be our sibling */ mutex_enter(&tsf->sf_mutex); tsf->sf_sibling = sf; mutex_exit(&tsf->sf_mutex); } /* * create this property so that PM code knows we want * to be suspended at PM time */ (void) ddi_prop_update_string(DDI_DEV_T_NONE, dip, PM_HARDWARE_STATE_PROP, PM_NEEDS_SUSPEND_RESUME); /* log the fact that we have a new device */ ddi_report_dev(dip); /* * force a login by setting our state to offline */ sf->sf_timer = sf_watchdog_time + SF_OFFLINE_TIMEOUT; sf->sf_state = SF_STATE_OFFLINE; /* * call transport routine to register state change and * ELS callback routines (to register us as a ULP) */ soc_add_ulp(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, TYPE_SCSI_FCP, sf_statec_callback, sf_unsol_els_callback, NULL, sf); /* * call transport routine to force loop initialization */ (void) soc_force_lip(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, 0, FCAL_NO_LIP); sf->sf_reset_time = ddi_get_lbolt64(); return (DDI_SUCCESS); default: return (DDI_FAILURE); } fail: cmn_err(CE_WARN, "sf%d: failed to attach", instance); /* * Unbind and free event set */ if (sf->sf_event_hdl) { (void) ndi_event_unbind_set(sf->sf_event_hdl, &sf->sf_events, NDI_SLEEP); (void) ndi_event_free_hdl(sf->sf_event_hdl); } if (sf->sf_event_defs) { kmem_free(sf->sf_event_defs, sizeof (sf_event_defs)); } if (sf->sf_tran != NULL) { scsi_hba_tran_free(sf->sf_tran); } while (sf->sf_cr_pool != NULL) { sf_crpool_free(sf); } if (sf->sf_lilp_dmahandle != NULL) { if (handle_bound) { (void) ddi_dma_unbind_handle(sf->sf_lilp_dmahandle); } ddi_dma_free_handle(&sf->sf_lilp_dmahandle); } if (sf->sf_pkt_cache != NULL) { kmem_cache_destroy(sf->sf_pkt_cache); } if (sf->sf_lilp_map != NULL) { ddi_dma_mem_free(&sf->sf_lilp_acchandle); } if (sf->sf_ksp != NULL) { kstat_delete(sf->sf_ksp); } if (mutex_initted) { mutex_destroy(&sf->sf_mutex); mutex_destroy(&sf->sf_cmd_mutex); mutex_destroy(&sf->sf_cr_mutex); mutex_destroy(&sf->sf_hp_daemon_mutex); cv_destroy(&sf->sf_cr_cv); cv_destroy(&sf->sf_hp_daemon_cv); } mutex_enter(&sf_global_mutex); /* * kill off the watchdog if we are the last instance */ if (!--sf_watchdog_init) { timeout_id_t tid = sf_watchdog_id; mutex_exit(&sf_global_mutex); (void) untimeout(tid); } else { mutex_exit(&sf_global_mutex); } ddi_soft_state_free(sf_state, instance); if (tran != NULL) { /* remove all minor nodes */ ddi_remove_minor_node(dip, NULL); } return (DDI_FAILURE); } /* ARGSUSED */ static int sf_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) { struct sf *sf; int instance; int i; struct sf_target *target; timeout_id_t tid; /* NO OTHER THREADS ARE RUNNING */ instance = ddi_get_instance(dip); if ((sf = ddi_get_soft_state(sf_state, instance)) == NULL) { cmn_err(CE_WARN, "sf_detach, sf%d: bad soft state", instance); return (DDI_FAILURE); } switch (cmd) { case DDI_SUSPEND: /* * suspend our instance */ SF_DEBUG(2, (sf, CE_CONT, "sf_detach: DDI_SUSPEND for sf%d\n", instance)); /* * There is a race condition in socal where while doing * callbacks if a ULP removes it self from the callback list * the for loop in socal may panic as cblist is junk and * while trying to get cblist->next the system will panic. */ /* call transport to remove our unregister our callbacks */ soc_remove_ulp(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, TYPE_SCSI_FCP, sf); /* * begin process of clearing outstanding commands * by issuing a lip */ sf_force_lip(sf); /* * toggle the device OFFLINE in order to cause * outstanding commands to drain */ mutex_enter(&sf->sf_mutex); sf->sf_lip_cnt++; sf->sf_timer = sf_watchdog_time + SF_OFFLINE_TIMEOUT; sf->sf_state = (SF_STATE_OFFLINE | SF_STATE_SUSPENDED); for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; if (target != NULL) { struct sf_target *ntarget; mutex_enter(&target->sft_mutex); if (!(target->sft_state & SF_TARGET_OFFLINE)) { target->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); } /* do this for all LUNs as well */ for (ntarget = target->sft_next_lun; ntarget; ntarget = ntarget->sft_next_lun) { mutex_enter(&ntarget->sft_mutex); if (!(ntarget->sft_state & SF_TARGET_OFFLINE)) { ntarget->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); } mutex_exit(&ntarget->sft_mutex); } mutex_exit(&target->sft_mutex); } } mutex_exit(&sf->sf_mutex); mutex_enter(&sf_global_mutex); /* * kill off the watchdog if we are the last instance */ if (!--sf_watchdog_init) { tid = sf_watchdog_id; mutex_exit(&sf_global_mutex); (void) untimeout(tid); } else { mutex_exit(&sf_global_mutex); } return (DDI_SUCCESS); case DDI_DETACH: /* * detach this instance */ SF_DEBUG(2, (sf, CE_CONT, "sf_detach: DDI_DETACH for sf%d\n", instance)); /* remove this "sf" from the list of sf softstates */ sf_softstate_unlink(sf); /* * prior to taking any DDI_DETACH actions, toggle the * device OFFLINE in order to cause outstanding * commands to drain */ mutex_enter(&sf->sf_mutex); sf->sf_lip_cnt++; sf->sf_timer = sf_watchdog_time + SF_OFFLINE_TIMEOUT; sf->sf_state = SF_STATE_OFFLINE; for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; if (target != NULL) { struct sf_target *ntarget; mutex_enter(&target->sft_mutex); if (!(target->sft_state & SF_TARGET_OFFLINE)) { target->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); } for (ntarget = target->sft_next_lun; ntarget; ntarget = ntarget->sft_next_lun) { mutex_enter(&ntarget->sft_mutex); if (!(ntarget->sft_state & SF_TARGET_OFFLINE)) { ntarget->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); } mutex_exit(&ntarget->sft_mutex); } mutex_exit(&target->sft_mutex); } } mutex_exit(&sf->sf_mutex); /* call transport to remove and unregister our callbacks */ soc_remove_ulp(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, TYPE_SCSI_FCP, sf); /* * kill off the watchdog if we are the last instance */ mutex_enter(&sf_global_mutex); if (!--sf_watchdog_init) { tid = sf_watchdog_id; mutex_exit(&sf_global_mutex); (void) untimeout(tid); } else { mutex_exit(&sf_global_mutex); } /* signal sf_hp_daemon() to exit and wait for exit */ mutex_enter(&sf->sf_hp_daemon_mutex); ASSERT(sf->sf_hp_tid); sf->sf_hp_exit = 1; /* flag exit */ cv_signal(&sf->sf_hp_daemon_cv); mutex_exit(&sf->sf_hp_daemon_mutex); thread_join(sf->sf_hp_tid); /* wait for hotplug to exit */ /* * Unbind and free event set */ if (sf->sf_event_hdl) { (void) ndi_event_unbind_set(sf->sf_event_hdl, &sf->sf_events, NDI_SLEEP); (void) ndi_event_free_hdl(sf->sf_event_hdl); } if (sf->sf_event_defs) { kmem_free(sf->sf_event_defs, sizeof (sf_event_defs)); } /* detach this instance of the HBA driver */ scsi_hba_detach(dip); scsi_hba_tran_free(sf->sf_tran); /* deallocate/unbind DMA handle for lilp map */ if (sf->sf_lilp_map != NULL) { (void) ddi_dma_unbind_handle(sf->sf_lilp_dmahandle); if (sf->sf_lilp_dmahandle != NULL) { ddi_dma_free_handle(&sf->sf_lilp_dmahandle); } ddi_dma_mem_free(&sf->sf_lilp_acchandle); } /* * the kmem cache must be destroyed before free'ing * up the crpools * * our finagle of "ntot" and "nfree" * causes an ASSERT failure in "sf_cr_free()" * if the kmem cache is free'd after invoking * "sf_crpool_free()". */ kmem_cache_destroy(sf->sf_pkt_cache); SF_DEBUG(2, (sf, CE_CONT, "sf_detach: sf_crpool_free() for instance 0x%x\n", instance)); while (sf->sf_cr_pool != NULL) { /* * set ntot to nfree for this particular entry * * this causes sf_crpool_free() to update * the cr_pool list when deallocating this entry */ sf->sf_cr_pool->ntot = sf->sf_cr_pool->nfree; sf_crpool_free(sf); } /* * now that the cr_pool's are gone it's safe * to destroy all softstate mutex's and cv's */ mutex_destroy(&sf->sf_mutex); mutex_destroy(&sf->sf_cmd_mutex); mutex_destroy(&sf->sf_cr_mutex); mutex_destroy(&sf->sf_hp_daemon_mutex); cv_destroy(&sf->sf_cr_cv); cv_destroy(&sf->sf_hp_daemon_cv); /* remove all minor nodes from the device tree */ ddi_remove_minor_node(dip, NULL); /* remove properties created during attach() */ ddi_prop_remove_all(dip); /* remove kstat's if present */ if (sf->sf_ksp != NULL) { kstat_delete(sf->sf_ksp); } SF_DEBUG(2, (sf, CE_CONT, "sf_detach: ddi_soft_state_free() for instance 0x%x\n", instance)); ddi_soft_state_free(sf_state, instance); return (DDI_SUCCESS); default: SF_DEBUG(2, (sf, CE_CONT, "sf_detach: sf%d unknown cmd %x\n", instance, (int)cmd)); return (DDI_FAILURE); } } /* * sf_softstate_unlink() - remove an sf instance from the list of softstates */ static void sf_softstate_unlink(struct sf *sf) { struct sf *sf_ptr; struct sf *sf_found_sibling; struct sf *sf_reposition = NULL; mutex_enter(&sf_global_mutex); while (sf_watch_running) { /* Busy working the list -- wait */ cv_wait(&sf_watch_cv, &sf_global_mutex); } if ((sf_found_sibling = sf->sf_sibling) != NULL) { /* * we have a sibling so NULL out its reference to us */ mutex_enter(&sf_found_sibling->sf_mutex); sf_found_sibling->sf_sibling = NULL; mutex_exit(&sf_found_sibling->sf_mutex); } /* remove our instance from the global list */ if (sf == sf_head) { /* we were at at head of the list */ sf_head = sf->sf_next; } else { /* find us in the list */ for (sf_ptr = sf_head; sf_ptr != NULL; sf_ptr = sf_ptr->sf_next) { if (sf_ptr == sf) { break; } /* remember this place */ sf_reposition = sf_ptr; } ASSERT(sf_ptr == sf); ASSERT(sf_reposition != NULL); sf_reposition->sf_next = sf_ptr->sf_next; } mutex_exit(&sf_global_mutex); } static int sf_scsi_bus_config(dev_info_t *parent, uint_t flag, ddi_bus_config_op_t op, void *arg, dev_info_t **childp) { int64_t reset_delay; struct sf *sf; sf = ddi_get_soft_state(sf_state, ddi_get_instance(parent)); ASSERT(sf); reset_delay = (int64_t)(USEC_TO_TICK(SF_INIT_WAIT_TIMEOUT)) - (ddi_get_lbolt64() - sf->sf_reset_time); if (reset_delay < 0) reset_delay = 0; if (sf_bus_config_debug) flag |= NDI_DEVI_DEBUG; return (ndi_busop_bus_config(parent, flag, op, arg, childp, (clock_t)reset_delay)); } static int sf_scsi_bus_unconfig(dev_info_t *parent, uint_t flag, ddi_bus_config_op_t op, void *arg) { if (sf_bus_config_debug) flag |= NDI_DEVI_DEBUG; return (ndi_busop_bus_unconfig(parent, flag, op, arg)); } /* * called by transport to initialize a SCSI target */ /* ARGSUSED */ static int sf_scsi_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd) { #ifdef RAID_LUNS int lun; #else int64_t lun; #endif struct sf_target *target; struct sf *sf = (struct sf *)hba_tran->tran_hba_private; int i, t_len; unsigned int lip_cnt; unsigned char wwn[FC_WWN_SIZE]; /* get and validate our SCSI target ID */ i = sd->sd_address.a_target; if (i >= sf_max_targets) { return (DDI_NOT_WELL_FORMED); } /* get our port WWN property */ t_len = sizeof (wwn); if (ddi_prop_op(DDI_DEV_T_ANY, tgt_dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS | DDI_PROP_CANSLEEP, PORT_WWN_PROP, (caddr_t)&wwn, &t_len) != DDI_SUCCESS) { /* no port WWN property - ignore the OBP stub node */ return (DDI_NOT_WELL_FORMED); } /* get our LIP count property */ t_len = sizeof (lip_cnt); if (ddi_prop_op(DDI_DEV_T_ANY, tgt_dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS | DDI_PROP_CANSLEEP, LIP_CNT_PROP, (caddr_t)&lip_cnt, &t_len) != DDI_SUCCESS) { return (DDI_FAILURE); } /* and our LUN property */ t_len = sizeof (lun); if (ddi_prop_op(DDI_DEV_T_ANY, tgt_dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS | DDI_PROP_CANSLEEP, "lun", (caddr_t)&lun, &t_len) != DDI_SUCCESS) { return (DDI_FAILURE); } /* find the target structure for this instance */ mutex_enter(&sf->sf_mutex); if ((target = sf_lookup_target(sf, wwn, lun)) == NULL) { mutex_exit(&sf->sf_mutex); return (DDI_FAILURE); } mutex_enter(&target->sft_mutex); if ((sf->sf_lip_cnt == lip_cnt) && !(target->sft_state & SF_TARGET_INIT_DONE)) { /* * set links between HBA transport and target structures * and set done flag */ hba_tran->tran_tgt_private = target; target->sft_tran = hba_tran; target->sft_state |= SF_TARGET_INIT_DONE; } else { /* already initialized ?? */ mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); return (DDI_FAILURE); } mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); return (DDI_SUCCESS); } /* * called by transport to free a target */ /* ARGSUSED */ static void sf_scsi_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip, scsi_hba_tran_t *hba_tran, struct scsi_device *sd) { struct sf_target *target = hba_tran->tran_tgt_private; if (target != NULL) { mutex_enter(&target->sft_mutex); target->sft_tran = NULL; target->sft_state &= ~SF_TARGET_INIT_DONE; mutex_exit(&target->sft_mutex); } } /* * allocator for non-std size cdb/pkt_private/status -- return TRUE iff * success, else return FALSE */ /*ARGSUSED*/ static int sf_pkt_alloc_extern(struct sf *sf, struct sf_pkt *cmd, int tgtlen, int statuslen, int kf) { caddr_t scbp, tgt; int failure = FALSE; struct scsi_pkt *pkt = CMD2PKT(cmd); tgt = scbp = NULL; if (tgtlen > PKT_PRIV_LEN) { if ((tgt = kmem_zalloc(tgtlen, kf)) == NULL) { failure = TRUE; } else { cmd->cmd_flags |= CFLAG_PRIVEXTERN; pkt->pkt_private = tgt; } } if (statuslen > EXTCMDS_STATUS_SIZE) { if ((scbp = kmem_zalloc((size_t)statuslen, kf)) == NULL) { failure = TRUE; } else { cmd->cmd_flags |= CFLAG_SCBEXTERN; pkt->pkt_scbp = (opaque_t)scbp; } } if (failure) { sf_pkt_destroy_extern(sf, cmd); } return (failure); } /* * deallocator for non-std size cdb/pkt_private/status */ static void sf_pkt_destroy_extern(struct sf *sf, struct sf_pkt *cmd) { struct scsi_pkt *pkt = CMD2PKT(cmd); if (cmd->cmd_flags & CFLAG_FREE) { cmn_err(CE_PANIC, "sf_scsi_impl_pktfree: freeing free packet"); _NOTE(NOT_REACHED) /* NOTREACHED */ } if (cmd->cmd_flags & CFLAG_SCBEXTERN) { kmem_free((caddr_t)pkt->pkt_scbp, (size_t)cmd->cmd_scblen); } if (cmd->cmd_flags & CFLAG_PRIVEXTERN) { kmem_free((caddr_t)pkt->pkt_private, (size_t)cmd->cmd_privlen); } cmd->cmd_flags = CFLAG_FREE; kmem_cache_free(sf->sf_pkt_cache, (void *)cmd); } /* * create or initialize a SCSI packet -- called internally and * by the transport */ static struct scsi_pkt * sf_scsi_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, struct buf *bp, int cmdlen, int statuslen, int tgtlen, int flags, int (*callback)(), caddr_t arg) { int kf; int failure = FALSE; struct sf_pkt *cmd; struct sf *sf = ADDR2SF(ap); struct sf_target *target = ADDR2TARGET(ap); struct sf_pkt *new_cmd = NULL; struct fcal_packet *fpkt; fc_frame_header_t *hp; struct fcp_cmd *fcmd; /* * If we've already allocated a pkt once, * this request is for dma allocation only. */ if (pkt == NULL) { /* * First step of sf_scsi_init_pkt: pkt allocation */ if (cmdlen > FCP_CDB_SIZE) { return (NULL); } kf = (callback == SLEEP_FUNC)? KM_SLEEP: KM_NOSLEEP; if ((cmd = kmem_cache_alloc(sf->sf_pkt_cache, kf)) != NULL) { /* * Selective zeroing of the pkt. */ cmd->cmd_flags = 0; cmd->cmd_forw = 0; cmd->cmd_back = 0; cmd->cmd_next = 0; cmd->cmd_pkt = (struct scsi_pkt *)((char *)cmd + sizeof (struct sf_pkt) + sizeof (struct fcal_packet)); cmd->cmd_fp_pkt = (struct fcal_packet *)((char *)cmd + sizeof (struct sf_pkt)); cmd->cmd_fp_pkt->fcal_pkt_private = (opaque_t)cmd; cmd->cmd_state = SF_STATE_IDLE; cmd->cmd_pkt->pkt_ha_private = (opaque_t)cmd; cmd->cmd_pkt->pkt_scbp = (opaque_t)cmd->cmd_scsi_scb; cmd->cmd_pkt->pkt_comp = NULL; cmd->cmd_pkt->pkt_flags = 0; cmd->cmd_pkt->pkt_time = 0; cmd->cmd_pkt->pkt_resid = 0; cmd->cmd_pkt->pkt_reason = 0; cmd->cmd_cdblen = (uchar_t)cmdlen; cmd->cmd_scblen = statuslen; cmd->cmd_privlen = tgtlen; cmd->cmd_pkt->pkt_address = *ap; /* zero pkt_private */ (int *)(cmd->cmd_pkt->pkt_private = cmd->cmd_pkt_private); bzero((caddr_t)cmd->cmd_pkt->pkt_private, PKT_PRIV_LEN); } else { failure = TRUE; } if (failure || (tgtlen > PKT_PRIV_LEN) || (statuslen > EXTCMDS_STATUS_SIZE)) { if (!failure) { /* need to allocate more space */ failure = sf_pkt_alloc_extern(sf, cmd, tgtlen, statuslen, kf); } if (failure) { return (NULL); } } fpkt = cmd->cmd_fp_pkt; if (cmd->cmd_block == NULL) { /* allocate cmd/response pool buffers */ if (sf_cr_alloc(sf, cmd, callback) == DDI_FAILURE) { sf_pkt_destroy_extern(sf, cmd); return (NULL); } /* fill in the FC-AL packet */ fpkt->fcal_pkt_cookie = sf->sf_socp; fpkt->fcal_pkt_comp = sf_cmd_callback; fpkt->fcal_pkt_flags = 0; fpkt->fcal_magic = FCALP_MAGIC; fpkt->fcal_socal_request.sr_soc_hdr.sh_flags = (ushort_t)(SOC_FC_HEADER | sf->sf_sochandle->fcal_portno); fpkt->fcal_socal_request.sr_soc_hdr.sh_class = 3; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_count = 1; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_flags = 0; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_seqno = 0; fpkt->fcal_socal_request.sr_dataseg[0].fc_base = (uint32_t)cmd->cmd_dmac; fpkt->fcal_socal_request.sr_dataseg[0].fc_count = sizeof (struct fcp_cmd); fpkt->fcal_socal_request.sr_dataseg[1].fc_base = (uint32_t)cmd->cmd_rsp_dmac; fpkt->fcal_socal_request.sr_dataseg[1].fc_count = FCP_MAX_RSP_IU_SIZE; /* Fill in the Fabric Channel Header */ hp = &fpkt->fcal_socal_request.sr_fc_frame_hdr; hp->r_ctl = R_CTL_COMMAND; hp->type = TYPE_SCSI_FCP; hp->f_ctl = F_CTL_SEQ_INITIATIVE | F_CTL_FIRST_SEQ; hp->reserved1 = 0; hp->seq_id = 0; hp->df_ctl = 0; hp->seq_cnt = 0; hp->ox_id = 0xffff; hp->rx_id = 0xffff; hp->ro = 0; /* Establish the LUN */ bcopy((caddr_t)&target->sft_lun.b, (caddr_t)&cmd->cmd_block->fcp_ent_addr, FCP_LUN_SIZE); *((int32_t *)&cmd->cmd_block->fcp_cntl) = 0; } cmd->cmd_pkt->pkt_cdbp = cmd->cmd_block->fcp_cdb; mutex_enter(&target->sft_pkt_mutex); target->sft_pkt_tail->cmd_forw = cmd; cmd->cmd_back = target->sft_pkt_tail; cmd->cmd_forw = (struct sf_pkt *)&target->sft_pkt_head; target->sft_pkt_tail = cmd; mutex_exit(&target->sft_pkt_mutex); new_cmd = cmd; /* for later cleanup if needed */ } else { /* pkt already exists -- just a request for DMA allocation */ cmd = PKT2CMD(pkt); fpkt = cmd->cmd_fp_pkt; } /* zero cdb (bzero is too slow) */ bzero((caddr_t)cmd->cmd_pkt->pkt_cdbp, cmdlen); /* * Second step of sf_scsi_init_pkt: dma allocation * Set up dma info */ if ((bp != NULL) && (bp->b_bcount != 0)) { int cmd_flags, dma_flags; int rval = 0; uint_t dmacookie_count; /* there is a buffer and some data to transfer */ /* set up command and DMA flags */ cmd_flags = cmd->cmd_flags; if (bp->b_flags & B_READ) { /* a read */ cmd_flags &= ~CFLAG_DMASEND; dma_flags = DDI_DMA_READ; } else { /* a write */ cmd_flags |= CFLAG_DMASEND; dma_flags = DDI_DMA_WRITE; } if (flags & PKT_CONSISTENT) { cmd_flags |= CFLAG_CMDIOPB; dma_flags |= DDI_DMA_CONSISTENT; } /* ensure we have a DMA handle */ if (cmd->cmd_dmahandle == NULL) { rval = ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle->fcal_dmaattr, callback, arg, &cmd->cmd_dmahandle); } if (rval == 0) { /* bind our DMA handle to our buffer */ rval = ddi_dma_buf_bind_handle(cmd->cmd_dmahandle, bp, dma_flags, callback, arg, &cmd->cmd_dmacookie, &dmacookie_count); } if (rval != 0) { /* DMA failure */ SF_DEBUG(2, (sf, CE_CONT, "ddi_dma_buf.. failed\n")); switch (rval) { case DDI_DMA_NORESOURCES: bioerror(bp, 0); break; case DDI_DMA_BADATTR: case DDI_DMA_NOMAPPING: bioerror(bp, EFAULT); break; case DDI_DMA_TOOBIG: default: bioerror(bp, EINVAL); break; } /* clear valid flag */ cmd->cmd_flags = cmd_flags & ~CFLAG_DMAVALID; if (new_cmd != NULL) { /* destroy packet if we just created it */ sf_scsi_destroy_pkt(ap, new_cmd->cmd_pkt); } return (NULL); } ASSERT(dmacookie_count == 1); /* set up amt to transfer and set valid flag */ cmd->cmd_dmacount = bp->b_bcount; cmd->cmd_flags = cmd_flags | CFLAG_DMAVALID; ASSERT(cmd->cmd_dmahandle != NULL); } /* set up FC-AL packet */ fcmd = cmd->cmd_block; if (cmd->cmd_flags & CFLAG_DMAVALID) { if (cmd->cmd_flags & CFLAG_DMASEND) { /* DMA write */ fcmd->fcp_cntl.cntl_read_data = 0; fcmd->fcp_cntl.cntl_write_data = 1; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_type = CQ_TYPE_IO_WRITE; } else { /* DMA read */ fcmd->fcp_cntl.cntl_read_data = 1; fcmd->fcp_cntl.cntl_write_data = 0; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_type = CQ_TYPE_IO_READ; } fpkt->fcal_socal_request.sr_dataseg[2].fc_base = (uint32_t)cmd->cmd_dmacookie.dmac_address; fpkt->fcal_socal_request.sr_dataseg[2].fc_count = cmd->cmd_dmacookie.dmac_size; fpkt->fcal_socal_request.sr_soc_hdr.sh_seg_cnt = 3; fpkt->fcal_socal_request.sr_soc_hdr.sh_byte_cnt = cmd->cmd_dmacookie.dmac_size; fcmd->fcp_data_len = cmd->cmd_dmacookie.dmac_size; } else { /* not a read or write */ fcmd->fcp_cntl.cntl_read_data = 0; fcmd->fcp_cntl.cntl_write_data = 0; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_type = CQ_TYPE_SIMPLE; fpkt->fcal_socal_request.sr_soc_hdr.sh_seg_cnt = 2; fpkt->fcal_socal_request.sr_soc_hdr.sh_byte_cnt = sizeof (struct fcp_cmd); fcmd->fcp_data_len = 0; } fcmd->fcp_cntl.cntl_qtype = FCP_QTYPE_SIMPLE; return (cmd->cmd_pkt); } /* * destroy a SCSI packet -- called internally and by the transport */ static void sf_scsi_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) { struct sf_pkt *cmd = PKT2CMD(pkt); struct sf *sf = ADDR2SF(ap); struct sf_target *target = ADDR2TARGET(ap); struct fcal_packet *fpkt = cmd->cmd_fp_pkt; if (cmd->cmd_flags & CFLAG_DMAVALID) { /* DMA was set up -- clean up */ (void) ddi_dma_unbind_handle(cmd->cmd_dmahandle); cmd->cmd_flags ^= CFLAG_DMAVALID; } /* take this packet off the doubly-linked list */ mutex_enter(&target->sft_pkt_mutex); cmd->cmd_back->cmd_forw = cmd->cmd_forw; cmd->cmd_forw->cmd_back = cmd->cmd_back; mutex_exit(&target->sft_pkt_mutex); fpkt->fcal_pkt_flags = 0; /* free the packet */ if ((cmd->cmd_flags & (CFLAG_FREE | CFLAG_PRIVEXTERN | CFLAG_SCBEXTERN)) == 0) { /* just a regular packet */ ASSERT(cmd->cmd_state != SF_STATE_ISSUED); cmd->cmd_flags = CFLAG_FREE; kmem_cache_free(sf->sf_pkt_cache, (void *)cmd); } else { /* a packet with extra memory */ sf_pkt_destroy_extern(sf, cmd); } } /* * called by transport to unbind DMA handle */ /* ARGSUSED */ static void sf_scsi_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt) { struct sf_pkt *cmd = PKT2CMD(pkt); if (cmd->cmd_flags & CFLAG_DMAVALID) { (void) ddi_dma_unbind_handle(cmd->cmd_dmahandle); cmd->cmd_flags ^= CFLAG_DMAVALID; } } /* * called by transport to synchronize CPU and I/O views of memory */ /* ARGSUSED */ static void sf_scsi_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) { struct sf_pkt *cmd = PKT2CMD(pkt); if (cmd->cmd_flags & CFLAG_DMAVALID) { if (ddi_dma_sync(cmd->cmd_dmahandle, (off_t)0, (size_t)0, (cmd->cmd_flags & CFLAG_DMASEND) ? DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU) != DDI_SUCCESS) { cmn_err(CE_WARN, "sf: sync pkt failed"); } } } /* * routine for reset notification setup, to register or cancel. -- called * by transport */ static int sf_scsi_reset_notify(struct scsi_address *ap, int flag, void (*callback)(caddr_t), caddr_t arg) { struct sf *sf = ADDR2SF(ap); return (scsi_hba_reset_notify_setup(ap, flag, callback, arg, &sf->sf_mutex, &sf->sf_reset_notify_listf)); } /* * called by transport to get port WWN property (except sun4u) */ /* ARGSUSED */ static int sf_scsi_get_name(struct scsi_device *sd, char *name, int len) { char tbuf[(FC_WWN_SIZE*2)+1]; unsigned char wwn[FC_WWN_SIZE]; int i, lun; dev_info_t *tgt_dip; tgt_dip = sd->sd_dev; i = sizeof (wwn); if (ddi_prop_op(DDI_DEV_T_ANY, tgt_dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS | DDI_PROP_CANSLEEP, PORT_WWN_PROP, (caddr_t)&wwn, &i) != DDI_SUCCESS) { name[0] = '\0'; return (0); } i = sizeof (lun); if (ddi_prop_op(DDI_DEV_T_ANY, tgt_dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS | DDI_PROP_CANSLEEP, "lun", (caddr_t)&lun, &i) != DDI_SUCCESS) { name[0] = '\0'; return (0); } for (i = 0; i < FC_WWN_SIZE; i++) (void) sprintf(&tbuf[i << 1], "%02x", wwn[i]); (void) sprintf(name, "w%s,%x", tbuf, lun); return (1); } /* * called by transport to get target soft AL-PA (except sun4u) */ /* ARGSUSED */ static int sf_scsi_get_bus_addr(struct scsi_device *sd, char *name, int len) { struct sf_target *target = ADDR2TARGET(&sd->sd_address); if (target == NULL) return (0); (void) sprintf(name, "%x", target->sft_al_pa); return (1); } /* * add to the command/response buffer pool for this sf instance */ static int sf_add_cr_pool(struct sf *sf) { int cmd_buf_size; size_t real_cmd_buf_size; int rsp_buf_size; size_t real_rsp_buf_size; uint_t i, ccount; struct sf_cr_pool *ptr; struct sf_cr_free_elem *cptr; caddr_t dptr, eptr; ddi_dma_cookie_t cmd_cookie; ddi_dma_cookie_t rsp_cookie; int cmd_bound = FALSE, rsp_bound = FALSE; /* allocate room for the pool */ if ((ptr = kmem_zalloc(sizeof (struct sf_cr_pool), KM_NOSLEEP)) == NULL) { return (DDI_FAILURE); } /* allocate a DMA handle for the command pool */ if (ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle->fcal_dmaattr, DDI_DMA_DONTWAIT, NULL, &ptr->cmd_dma_handle) != DDI_SUCCESS) { goto fail; } /* * Get a piece of memory in which to put commands */ cmd_buf_size = (sizeof (struct fcp_cmd) * SF_ELEMS_IN_POOL + 7) & ~7; if (ddi_dma_mem_alloc(ptr->cmd_dma_handle, cmd_buf_size, sf->sf_sochandle->fcal_accattr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, (caddr_t *)&ptr->cmd_base, &real_cmd_buf_size, &ptr->cmd_acc_handle) != DDI_SUCCESS) { goto fail; } /* bind the DMA handle to an address */ if (ddi_dma_addr_bind_handle(ptr->cmd_dma_handle, NULL, ptr->cmd_base, real_cmd_buf_size, DDI_DMA_WRITE | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &cmd_cookie, &ccount) != DDI_DMA_MAPPED) { goto fail; } cmd_bound = TRUE; /* ensure only one cookie was allocated */ if (ccount != 1) { goto fail; } /* allocate a DMA handle for the response pool */ if (ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle->fcal_dmaattr, DDI_DMA_DONTWAIT, NULL, &ptr->rsp_dma_handle) != DDI_SUCCESS) { goto fail; } /* * Get a piece of memory in which to put responses */ rsp_buf_size = FCP_MAX_RSP_IU_SIZE * SF_ELEMS_IN_POOL; if (ddi_dma_mem_alloc(ptr->rsp_dma_handle, rsp_buf_size, sf->sf_sochandle->fcal_accattr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, (caddr_t *)&ptr->rsp_base, &real_rsp_buf_size, &ptr->rsp_acc_handle) != DDI_SUCCESS) { goto fail; } /* bind the DMA handle to an address */ if (ddi_dma_addr_bind_handle(ptr->rsp_dma_handle, NULL, ptr->rsp_base, real_rsp_buf_size, DDI_DMA_READ | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &rsp_cookie, &ccount) != DDI_DMA_MAPPED) { goto fail; } rsp_bound = TRUE; /* ensure only one cookie was allocated */ if (ccount != 1) { goto fail; } /* * Generate a (cmd/rsp structure) free list */ /* ensure ptr points to start of long word (8-byte block) */ dptr = (caddr_t)((uintptr_t)(ptr->cmd_base) + 7 & ~7); /* keep track of actual size after moving pointer */ real_cmd_buf_size -= (dptr - ptr->cmd_base); eptr = ptr->rsp_base; /* set actual total number of entries */ ptr->ntot = min((real_cmd_buf_size / sizeof (struct fcp_cmd)), (real_rsp_buf_size / FCP_MAX_RSP_IU_SIZE)); ptr->nfree = ptr->ntot; ptr->free = (struct sf_cr_free_elem *)ptr->cmd_base; ptr->sf = sf; /* set up DMA for each pair of entries */ i = 0; while (i < ptr->ntot) { cptr = (struct sf_cr_free_elem *)dptr; dptr += sizeof (struct fcp_cmd); cptr->next = (struct sf_cr_free_elem *)dptr; cptr->rsp = eptr; cptr->cmd_dmac = cmd_cookie.dmac_address + (uint32_t)((caddr_t)cptr - ptr->cmd_base); cptr->rsp_dmac = rsp_cookie.dmac_address + (uint32_t)((caddr_t)eptr - ptr->rsp_base); eptr += FCP_MAX_RSP_IU_SIZE; i++; } /* terminate the list */ cptr->next = NULL; /* add this list at front of current one */ mutex_enter(&sf->sf_cr_mutex); ptr->next = sf->sf_cr_pool; sf->sf_cr_pool = ptr; sf->sf_cr_pool_cnt++; mutex_exit(&sf->sf_cr_mutex); return (DDI_SUCCESS); fail: /* we failed so clean up */ if (ptr->cmd_dma_handle != NULL) { if (cmd_bound) { (void) ddi_dma_unbind_handle(ptr->cmd_dma_handle); } ddi_dma_free_handle(&ptr->cmd_dma_handle); } if (ptr->rsp_dma_handle != NULL) { if (rsp_bound) { (void) ddi_dma_unbind_handle(ptr->rsp_dma_handle); } ddi_dma_free_handle(&ptr->rsp_dma_handle); } if (ptr->cmd_base != NULL) { ddi_dma_mem_free(&ptr->cmd_acc_handle); } if (ptr->rsp_base != NULL) { ddi_dma_mem_free(&ptr->rsp_acc_handle); } kmem_free((caddr_t)ptr, sizeof (struct sf_cr_pool)); return (DDI_FAILURE); } /* * allocate a command/response buffer from the pool, allocating more * in the pool as needed */ static int sf_cr_alloc(struct sf *sf, struct sf_pkt *cmd, int (*func)()) { struct sf_cr_pool *ptr; struct sf_cr_free_elem *cptr; mutex_enter(&sf->sf_cr_mutex); try_again: /* find a free buffer in the existing pool */ ptr = sf->sf_cr_pool; while (ptr != NULL) { if (ptr->nfree != 0) { ptr->nfree--; break; } else { ptr = ptr->next; } } /* did we find a free buffer ? */ if (ptr != NULL) { /* we found a free buffer -- take it off the free list */ cptr = ptr->free; ptr->free = cptr->next; mutex_exit(&sf->sf_cr_mutex); /* set up the command to use the buffer pair */ cmd->cmd_block = (struct fcp_cmd *)cptr; cmd->cmd_dmac = cptr->cmd_dmac; cmd->cmd_rsp_dmac = cptr->rsp_dmac; cmd->cmd_rsp_block = (struct fcp_rsp *)cptr->rsp; cmd->cmd_cr_pool = ptr; return (DDI_SUCCESS); /* success */ } /* no free buffer available -- can we allocate more ? */ if (sf->sf_cr_pool_cnt < SF_CR_POOL_MAX) { /* we need to allocate more buffer pairs */ if (sf->sf_cr_flag) { /* somebody already allocating for this instance */ if (func == SLEEP_FUNC) { /* user wants to wait */ cv_wait(&sf->sf_cr_cv, &sf->sf_cr_mutex); /* we've been woken so go try again */ goto try_again; } /* user does not want to wait */ mutex_exit(&sf->sf_cr_mutex); sf->sf_stats.cralloc_failures++; return (DDI_FAILURE); /* give up */ } /* set flag saying we're allocating */ sf->sf_cr_flag = 1; mutex_exit(&sf->sf_cr_mutex); /* add to our pool */ if (sf_add_cr_pool(sf) != DDI_SUCCESS) { /* couldn't add to our pool for some reason */ mutex_enter(&sf->sf_cr_mutex); sf->sf_cr_flag = 0; cv_broadcast(&sf->sf_cr_cv); mutex_exit(&sf->sf_cr_mutex); sf->sf_stats.cralloc_failures++; return (DDI_FAILURE); /* give up */ } /* * clear flag saying we're allocating and tell all other * that care */ mutex_enter(&sf->sf_cr_mutex); sf->sf_cr_flag = 0; cv_broadcast(&sf->sf_cr_cv); /* now that we have more buffers try again */ goto try_again; } /* we don't have room to allocate any more buffers */ mutex_exit(&sf->sf_cr_mutex); sf->sf_stats.cralloc_failures++; return (DDI_FAILURE); /* give up */ } /* * free a cmd/response buffer pair in our pool */ static void sf_cr_free(struct sf_cr_pool *cp, struct sf_pkt *cmd) { struct sf *sf = cp->sf; struct sf_cr_free_elem *elem; elem = (struct sf_cr_free_elem *)cmd->cmd_block; elem->rsp = (caddr_t)cmd->cmd_rsp_block; elem->cmd_dmac = cmd->cmd_dmac; elem->rsp_dmac = cmd->cmd_rsp_dmac; mutex_enter(&sf->sf_cr_mutex); cp->nfree++; ASSERT(cp->nfree <= cp->ntot); elem->next = cp->free; cp->free = elem; mutex_exit(&sf->sf_cr_mutex); } /* * free our pool of cmd/response buffers */ static void sf_crpool_free(struct sf *sf) { struct sf_cr_pool *cp, *prev; prev = NULL; mutex_enter(&sf->sf_cr_mutex); cp = sf->sf_cr_pool; while (cp != NULL) { if (cp->nfree == cp->ntot) { if (prev != NULL) { prev->next = cp->next; } else { sf->sf_cr_pool = cp->next; } sf->sf_cr_pool_cnt--; mutex_exit(&sf->sf_cr_mutex); (void) ddi_dma_unbind_handle(cp->cmd_dma_handle); ddi_dma_free_handle(&cp->cmd_dma_handle); (void) ddi_dma_unbind_handle(cp->rsp_dma_handle); ddi_dma_free_handle(&cp->rsp_dma_handle); ddi_dma_mem_free(&cp->cmd_acc_handle); ddi_dma_mem_free(&cp->rsp_acc_handle); kmem_free((caddr_t)cp, sizeof (struct sf_cr_pool)); return; } prev = cp; cp = cp->next; } mutex_exit(&sf->sf_cr_mutex); } /* ARGSUSED */ static int sf_kmem_cache_constructor(void *buf, void *arg, int size) { struct sf_pkt *cmd = buf; mutex_init(&cmd->cmd_abort_mutex, NULL, MUTEX_DRIVER, NULL); cmd->cmd_block = NULL; cmd->cmd_dmahandle = NULL; return (0); } /* ARGSUSED */ static void sf_kmem_cache_destructor(void *buf, void *size) { struct sf_pkt *cmd = buf; if (cmd->cmd_dmahandle != NULL) { ddi_dma_free_handle(&cmd->cmd_dmahandle); } if (cmd->cmd_block != NULL) { sf_cr_free(cmd->cmd_cr_pool, cmd); } mutex_destroy(&cmd->cmd_abort_mutex); } /* * called by transport when a state change occurs */ static void sf_statec_callback(void *arg, int msg) { struct sf *sf = (struct sf *)arg; struct sf_target *target; int i; struct sf_pkt *cmd; struct scsi_pkt *pkt; switch (msg) { case FCAL_STATUS_LOOP_ONLINE: { uchar_t al_pa; /* to save AL-PA */ int ret; /* ret value from getmap */ int lip_cnt; /* to save current count */ int cnt; /* map length */ /* * the loop has gone online */ SF_DEBUG(1, (sf, CE_CONT, "sf%d: loop online\n", ddi_get_instance(sf->sf_dip))); mutex_enter(&sf->sf_mutex); sf->sf_lip_cnt++; sf->sf_state = SF_STATE_ONLINING; mutex_exit(&sf->sf_mutex); /* scan each target hash queue */ for (i = 0; i < SF_NUM_HASH_QUEUES; i++) { target = sf->sf_wwn_lists[i]; while (target != NULL) { /* * foreach target, if it's not offline then * mark it as busy */ mutex_enter(&target->sft_mutex); if (!(target->sft_state & SF_TARGET_OFFLINE)) target->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); #ifdef DEBUG /* * for debugging, print out info on any * pending commands (left hanging) */ cmd = target->sft_pkt_head; while (cmd != (struct sf_pkt *)&target-> sft_pkt_head) { if (cmd->cmd_state == SF_STATE_ISSUED) { SF_DEBUG(1, (sf, CE_CONT, "cmd 0x%p pending " "after lip\n", (void *)cmd->cmd_fp_pkt)); } cmd = cmd->cmd_forw; } #endif mutex_exit(&target->sft_mutex); target = target->sft_next; } } /* * since the loop has just gone online get a new map from * the transport */ if ((ret = soc_get_lilp_map(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, (uint32_t)sf-> sf_lilp_dmacookie.dmac_address, 1)) != FCAL_SUCCESS) { if (sf_core && (sf_core & SF_CORE_LILP_FAILED)) { (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } sf_log(sf, CE_WARN, "!soc lilp map failed status=0x%x\n", ret); mutex_enter(&sf->sf_mutex); sf->sf_timer = sf_watchdog_time + SF_OFFLINE_TIMEOUT; sf->sf_lip_cnt++; sf->sf_state = SF_STATE_OFFLINE; mutex_exit(&sf->sf_mutex); return; } /* ensure consistent view of DMA memory */ (void) ddi_dma_sync(sf->sf_lilp_dmahandle, (off_t)0, (size_t)0, DDI_DMA_SYNC_FORKERNEL); /* how many entries in map ? */ cnt = sf->sf_lilp_map->lilp_length; if (cnt >= SF_MAX_LILP_ENTRIES) { sf_log(sf, CE_WARN, "invalid lilp map\n"); return; } mutex_enter(&sf->sf_mutex); sf->sf_device_count = cnt - 1; sf->sf_al_pa = sf->sf_lilp_map->lilp_myalpa; lip_cnt = sf->sf_lip_cnt; al_pa = sf->sf_al_pa; SF_DEBUG(1, (sf, CE_CONT, "!lilp map has %d entries, al_pa is %x\n", cnt, al_pa)); /* * since the last entry of the map may be mine (common) check * for that, and if it is we have one less entry to look at */ if (sf->sf_lilp_map->lilp_alpalist[cnt-1] == al_pa) { cnt--; } /* If we didn't get a valid loop map enable all targets */ if (sf->sf_lilp_map->lilp_magic == FCAL_BADLILP_MAGIC) { for (i = 0; i < sizeof (sf_switch_to_alpa); i++) sf->sf_lilp_map->lilp_alpalist[i] = sf_switch_to_alpa[i]; cnt = i; sf->sf_device_count = cnt - 1; } if (sf->sf_device_count == 0) { sf_finish_init(sf, lip_cnt); mutex_exit(&sf->sf_mutex); break; } mutex_exit(&sf->sf_mutex); SF_DEBUG(2, (sf, CE_WARN, "!statec_callback: starting with %d targets\n", sf->sf_device_count)); /* scan loop map, logging into all ports (except mine) */ for (i = 0; i < cnt; i++) { SF_DEBUG(1, (sf, CE_CONT, "!lilp map entry %d = %x,%x\n", i, sf->sf_lilp_map->lilp_alpalist[i], sf_alpa_to_switch[ sf->sf_lilp_map->lilp_alpalist[i]])); /* is this entry for somebody else ? */ if (sf->sf_lilp_map->lilp_alpalist[i] != al_pa) { /* do a PLOGI to this port */ if (!sf_login(sf, LA_ELS_PLOGI, sf->sf_lilp_map->lilp_alpalist[i], sf->sf_lilp_map->lilp_alpalist[cnt-1], lip_cnt)) { /* a problem logging in */ mutex_enter(&sf->sf_mutex); if (lip_cnt == sf->sf_lip_cnt) { /* * problem not from a new LIP */ sf->sf_device_count--; ASSERT(sf->sf_device_count >= 0); if (sf->sf_device_count == 0) { sf_finish_init(sf, lip_cnt); } } mutex_exit(&sf->sf_mutex); } } } break; } case FCAL_STATUS_ERR_OFFLINE: /* * loop has gone offline due to an error */ SF_DEBUG(1, (sf, CE_CONT, "sf%d: loop offline\n", ddi_get_instance(sf->sf_dip))); mutex_enter(&sf->sf_mutex); sf->sf_lip_cnt++; sf->sf_timer = sf_watchdog_time + SF_OFFLINE_TIMEOUT; if (!sf->sf_online_timer) { sf->sf_online_timer = sf_watchdog_time + SF_ONLINE_TIMEOUT; } /* * if we are suspended, preserve the SF_STATE_SUSPENDED flag, * since throttling logic in sf_watch() depends on * preservation of this flag while device is suspended */ if (sf->sf_state & SF_STATE_SUSPENDED) { sf->sf_state |= SF_STATE_OFFLINE; SF_DEBUG(1, (sf, CE_CONT, "sf_statec_callback, sf%d: " "got FCAL_STATE_OFFLINE during DDI_SUSPEND\n", ddi_get_instance(sf->sf_dip))); } else { sf->sf_state = SF_STATE_OFFLINE; } /* scan each possible target on the loop */ for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; while (target != NULL) { mutex_enter(&target->sft_mutex); if (!(target->sft_state & SF_TARGET_OFFLINE)) target->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); mutex_exit(&target->sft_mutex); target = target->sft_next_lun; } } mutex_exit(&sf->sf_mutex); break; case FCAL_STATE_RESET: { struct sf_els_hdr *privp; /* ptr to private list */ struct sf_els_hdr *tmpp1; /* tmp prev hdr ptr */ struct sf_els_hdr *tmpp2; /* tmp next hdr ptr */ struct sf_els_hdr *head; /* to save our private list */ struct fcal_packet *fpkt; /* ptr to pkt in hdr */ /* * a transport reset */ SF_DEBUG(1, (sf, CE_CONT, "!sf%d: soc reset\n", ddi_get_instance(sf->sf_dip))); tmpp1 = head = NULL; mutex_enter(&sf->sf_mutex); sf->sf_lip_cnt++; sf->sf_timer = sf_watchdog_time + SF_RESET_TIMEOUT; /* * if we are suspended, preserve the SF_STATE_SUSPENDED flag, * since throttling logic in sf_watch() depends on * preservation of this flag while device is suspended */ if (sf->sf_state & SF_STATE_SUSPENDED) { sf->sf_state |= SF_STATE_OFFLINE; SF_DEBUG(1, (sf, CE_CONT, "sf_statec_callback, sf%d: " "got FCAL_STATE_RESET during DDI_SUSPEND\n", ddi_get_instance(sf->sf_dip))); } else { sf->sf_state = SF_STATE_OFFLINE; } /* * scan each possible target on the loop, looking for targets * that need callbacks ran */ for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; while (target != NULL) { if (!(target->sft_state & SF_TARGET_OFFLINE)) { target->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); mutex_exit(&sf->sf_mutex); /* * run remove event callbacks for lun * * We have a nasty race condition here * 'cause we're dropping this mutex to * run the callback and expect the * linked list to be the same. */ (void) ndi_event_retrieve_cookie( sf->sf_event_hdl, target->sft_dip, FCAL_REMOVE_EVENT, &sf_remove_eid, NDI_EVENT_NOPASS); (void) ndi_event_run_callbacks( sf->sf_event_hdl, target->sft_dip, sf_remove_eid, NULL); mutex_enter(&sf->sf_mutex); } target = target->sft_next_lun; } } /* * scan for ELS commands that are in transport, not complete, * and have a valid timeout, building a private list */ privp = sf->sf_els_list; while (privp != NULL) { fpkt = privp->fpkt; if ((fpkt->fcal_cmd_state & FCAL_CMD_IN_TRANSPORT) && (!(fpkt->fcal_cmd_state & FCAL_CMD_COMPLETE)) && (privp->timeout != SF_INVALID_TIMEOUT)) { /* * cmd in transport && not complete && * timeout valid * * move this entry from ELS input list to our * private list */ tmpp2 = privp->next; /* save ptr to next */ /* push this on private list head */ privp->next = head; head = privp; /* remove this entry from input list */ if (tmpp1 != NULL) { /* * remove this entry from somewhere in * the middle of the list */ tmpp1->next = tmpp2; if (tmpp2 != NULL) { tmpp2->prev = tmpp1; } } else { /* * remove this entry from the head * of the list */ sf->sf_els_list = tmpp2; if (tmpp2 != NULL) { tmpp2->prev = NULL; } } privp = tmpp2; /* skip to next entry */ } else { tmpp1 = privp; /* save ptr to prev entry */ privp = privp->next; /* skip to next entry */ } } mutex_exit(&sf->sf_mutex); /* * foreach cmd in our list free the ELS packet associated * with it */ privp = head; while (privp != NULL) { fpkt = privp->fpkt; privp = privp->next; sf_els_free(fpkt); } /* * scan for commands from each possible target */ for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; while (target != NULL) { /* * scan all active commands for this target, * looking for commands that have been issued, * are in transport, and are not yet complete * (so we can terminate them because of the * reset) */ mutex_enter(&target->sft_pkt_mutex); cmd = target->sft_pkt_head; while (cmd != (struct sf_pkt *)&target-> sft_pkt_head) { fpkt = cmd->cmd_fp_pkt; mutex_enter(&cmd->cmd_abort_mutex); if ((cmd->cmd_state == SF_STATE_ISSUED) && (fpkt->fcal_cmd_state & FCAL_CMD_IN_TRANSPORT) && (!(fpkt->fcal_cmd_state & FCAL_CMD_COMPLETE))) { /* a command to be reset */ pkt = cmd->cmd_pkt; pkt->pkt_reason = CMD_RESET; pkt->pkt_statistics |= STAT_BUS_RESET; cmd->cmd_state = SF_STATE_IDLE; mutex_exit(&cmd-> cmd_abort_mutex); mutex_exit(&target-> sft_pkt_mutex); if (pkt->pkt_comp != NULL) { (*pkt->pkt_comp)(pkt); } mutex_enter(&target-> sft_pkt_mutex); cmd = target->sft_pkt_head; } else { mutex_exit(&cmd-> cmd_abort_mutex); /* get next command */ cmd = cmd->cmd_forw; } } mutex_exit(&target->sft_pkt_mutex); target = target->sft_next_lun; } } /* * get packet queue for this target, resetting all remaining * commands */ mutex_enter(&sf->sf_mutex); cmd = sf->sf_pkt_head; sf->sf_pkt_head = NULL; mutex_exit(&sf->sf_mutex); while (cmd != NULL) { pkt = cmd->cmd_pkt; cmd = cmd->cmd_next; pkt->pkt_reason = CMD_RESET; pkt->pkt_statistics |= STAT_BUS_RESET; if (pkt->pkt_comp != NULL) { (*pkt->pkt_comp)(pkt); } } break; } default: break; } } /* * called to send a PLOGI (N_port login) ELS request to a destination ID, * returning TRUE upon success, else returning FALSE */ static int sf_login(struct sf *sf, uchar_t els_code, uchar_t dest_id, uint_t arg1, int lip_cnt) { struct la_els_logi *logi; struct sf_els_hdr *privp; if (sf_els_alloc(sf, dest_id, sizeof (struct sf_els_hdr), sizeof (union sf_els_cmd), sizeof (union sf_els_rsp), (caddr_t *)&privp, (caddr_t *)&logi) == NULL) { sf_log(sf, CE_WARN, "Cannot allocate PLOGI for target %x " "due to DVMA shortage.\n", sf_alpa_to_switch[dest_id]); return (FALSE); } privp->lip_cnt = lip_cnt; if (els_code == LA_ELS_PLOGI) { bcopy((caddr_t)sf->sf_sochandle->fcal_loginparms, (caddr_t)&logi->common_service, sizeof (struct la_els_logi) - 4); bcopy((caddr_t)&sf->sf_sochandle->fcal_p_wwn, (caddr_t)&logi->nport_ww_name, sizeof (la_wwn_t)); bcopy((caddr_t)&sf->sf_sochandle->fcal_n_wwn, (caddr_t)&logi->node_ww_name, sizeof (la_wwn_t)); bzero((caddr_t)&logi->reserved, 16); } else if (els_code == LA_ELS_LOGO) { bcopy((caddr_t)&sf->sf_sochandle->fcal_p_wwn, (caddr_t)&(((struct la_els_logo *)logi)->nport_ww_name), 8); ((struct la_els_logo *)logi)->reserved = 0; ((struct la_els_logo *)logi)->nport_id[0] = 0; ((struct la_els_logo *)logi)->nport_id[1] = 0; ((struct la_els_logo *)logi)->nport_id[2] = arg1; } privp->els_code = els_code; logi->ls_code = els_code; logi->mbz[0] = 0; logi->mbz[1] = 0; logi->mbz[2] = 0; privp->timeout = sf_watchdog_time + SF_ELS_TIMEOUT; return (sf_els_transport(sf, privp)); } /* * send an ELS IU via the transport, * returning TRUE upon success, else returning FALSE */ static int sf_els_transport(struct sf *sf, struct sf_els_hdr *privp) { struct fcal_packet *fpkt = privp->fpkt; (void) ddi_dma_sync(privp->cmd_dma_handle, (off_t)0, (size_t)0, DDI_DMA_SYNC_FORDEV); privp->prev = NULL; mutex_enter(&sf->sf_mutex); privp->next = sf->sf_els_list; if (sf->sf_els_list != NULL) { sf->sf_els_list->prev = privp; } sf->sf_els_list = privp; mutex_exit(&sf->sf_mutex); /* call the transport to send a packet */ if (soc_transport(sf->sf_sochandle, fpkt, FCAL_NOSLEEP, CQ_REQUEST_1) != FCAL_TRANSPORT_SUCCESS) { mutex_enter(&sf->sf_mutex); if (privp->prev != NULL) { privp->prev->next = privp->next; } if (privp->next != NULL) { privp->next->prev = privp->prev; } if (sf->sf_els_list == privp) { sf->sf_els_list = privp->next; } mutex_exit(&sf->sf_mutex); sf_els_free(fpkt); return (FALSE); /* failure */ } return (TRUE); /* success */ } /* * called as the pkt_comp routine for ELS FC packets */ static void sf_els_callback(struct fcal_packet *fpkt) { struct sf_els_hdr *privp = fpkt->fcal_pkt_private; struct sf *sf = privp->sf; struct sf *tsf; int tgt_id; struct la_els_logi *ptr = (struct la_els_logi *)privp->rsp; struct la_els_adisc *adisc = (struct la_els_adisc *)ptr; struct sf_target *target; short ncmds; short free_pkt = TRUE; /* * we've received an ELS callback, i.e. an ELS packet has arrived */ /* take the current packet off of the queue */ mutex_enter(&sf->sf_mutex); if (privp->timeout == SF_INVALID_TIMEOUT) { mutex_exit(&sf->sf_mutex); return; } if (privp->prev != NULL) { privp->prev->next = privp->next; } if (privp->next != NULL) { privp->next->prev = privp->prev; } if (sf->sf_els_list == privp) { sf->sf_els_list = privp->next; } privp->prev = privp->next = NULL; mutex_exit(&sf->sf_mutex); /* get # pkts in this callback */ ncmds = fpkt->fcal_ncmds; ASSERT(ncmds >= 0); mutex_enter(&sf->sf_cmd_mutex); sf->sf_ncmds = ncmds; mutex_exit(&sf->sf_cmd_mutex); /* sync idea of memory */ (void) ddi_dma_sync(privp->rsp_dma_handle, (off_t)0, (size_t)0, DDI_DMA_SYNC_FORKERNEL); /* was this an OK ACC msg ?? */ if ((fpkt->fcal_pkt_status == FCAL_STATUS_OK) && (ptr->ls_code == LA_ELS_ACC)) { /* * this was an OK ACC pkt */ switch (privp->els_code) { case LA_ELS_PLOGI: /* * was able to to an N_port login */ SF_DEBUG(2, (sf, CE_CONT, "!PLOGI to al_pa %x succeeded, wwn %x%x\n", privp->dest_nport_id, *((int *)&ptr->nport_ww_name.raw_wwn[0]), *((int *)&ptr->nport_ww_name.raw_wwn[4]))); /* try to do a process login */ if (!sf_do_prli(sf, privp, ptr)) { free_pkt = FALSE; goto fail; /* PRLI failed */ } break; case LA_ELS_PRLI: /* * was able to do a process login */ SF_DEBUG(2, (sf, CE_CONT, "!PRLI to al_pa %x succeeded\n", privp->dest_nport_id)); /* try to do address discovery */ if (sf_do_adisc(sf, privp) != 1) { free_pkt = FALSE; goto fail; /* ADISC failed */ } break; case LA_ELS_ADISC: /* * found a target via ADISC */ SF_DEBUG(2, (sf, CE_CONT, "!ADISC to al_pa %x succeeded\n", privp->dest_nport_id)); /* create the target info */ if ((target = sf_create_target(sf, privp, sf_alpa_to_switch[(uchar_t)adisc->hard_address], (int64_t)0)) == NULL) { goto fail; /* can't create target */ } /* * ensure address discovered matches what we thought * it would be */ if ((uchar_t)adisc->hard_address != privp->dest_nport_id) { sf_log(sf, CE_WARN, "target 0x%x, AL-PA 0x%x and " "hard address 0x%x don't match\n", sf_alpa_to_switch[ (uchar_t)privp->dest_nport_id], privp->dest_nport_id, (uchar_t)adisc->hard_address); mutex_enter(&sf->sf_mutex); sf_offline_target(sf, target); mutex_exit(&sf->sf_mutex); goto fail; /* addr doesn't match */ } /* * get inquiry data from the target */ if (!sf_do_reportlun(sf, privp, target)) { mutex_enter(&sf->sf_mutex); sf_offline_target(sf, target); mutex_exit(&sf->sf_mutex); free_pkt = FALSE; goto fail; /* inquiry failed */ } break; default: SF_DEBUG(2, (sf, CE_CONT, "!ELS %x to al_pa %x succeeded\n", privp->els_code, privp->dest_nport_id)); sf_els_free(fpkt); break; } } else { /* * oh oh -- this was not an OK ACC packet */ /* get target ID from dest loop address */ tgt_id = sf_alpa_to_switch[(uchar_t)privp->dest_nport_id]; /* keep track of failures */ sf->sf_stats.tstats[tgt_id].els_failures++; if (++(privp->retries) < sf_els_retries && fpkt->fcal_pkt_status != FCAL_STATUS_OPEN_FAIL) { if (fpkt->fcal_pkt_status == FCAL_STATUS_MAX_XCHG_EXCEEDED) { tsf = sf->sf_sibling; if (tsf != NULL) { mutex_enter(&tsf->sf_cmd_mutex); tsf->sf_flag = 1; tsf->sf_throttle = SF_DECR_DELTA; mutex_exit(&tsf->sf_cmd_mutex); } } privp->timeout = sf_watchdog_time + SF_ELS_TIMEOUT; privp->prev = NULL; mutex_enter(&sf->sf_mutex); if (privp->lip_cnt == sf->sf_lip_cnt) { SF_DEBUG(1, (sf, CE_WARN, "!ELS %x to al_pa %x failed, retrying", privp->els_code, privp->dest_nport_id)); privp->next = sf->sf_els_list; if (sf->sf_els_list != NULL) { sf->sf_els_list->prev = privp; } sf->sf_els_list = privp; mutex_exit(&sf->sf_mutex); /* device busy? wait a bit ... */ if (fpkt->fcal_pkt_status == FCAL_STATUS_MAX_XCHG_EXCEEDED) { privp->delayed_retry = 1; return; } /* call the transport to send a pkt */ if (soc_transport(sf->sf_sochandle, fpkt, FCAL_NOSLEEP, CQ_REQUEST_1) != FCAL_TRANSPORT_SUCCESS) { mutex_enter(&sf->sf_mutex); if (privp->prev != NULL) { privp->prev->next = privp->next; } if (privp->next != NULL) { privp->next->prev = privp->prev; } if (sf->sf_els_list == privp) { sf->sf_els_list = privp->next; } mutex_exit(&sf->sf_mutex); goto fail; } else return; } else { mutex_exit(&sf->sf_mutex); goto fail; } } else { #ifdef DEBUG if (fpkt->fcal_pkt_status != 0x36 || sfdebug > 4) { SF_DEBUG(2, (sf, CE_NOTE, "ELS %x to al_pa %x failed", privp->els_code, privp->dest_nport_id)); if (fpkt->fcal_pkt_status == FCAL_STATUS_OK) { SF_DEBUG(2, (sf, CE_NOTE, "els reply code = %x", ptr->ls_code)); if (ptr->ls_code == LA_ELS_RJT) SF_DEBUG(1, (sf, CE_CONT, "LS_RJT reason = %x\n", *(((uint_t *)ptr) + 1))); } else SF_DEBUG(2, (sf, CE_NOTE, "fc packet status = %x", fpkt->fcal_pkt_status)); } #endif goto fail; } } return; /* success */ fail: mutex_enter(&sf->sf_mutex); if (sf->sf_lip_cnt == privp->lip_cnt) { sf->sf_device_count--; ASSERT(sf->sf_device_count >= 0); if (sf->sf_device_count == 0) { sf_finish_init(sf, privp->lip_cnt); } } mutex_exit(&sf->sf_mutex); if (free_pkt) { sf_els_free(fpkt); } } /* * send a PRLI (process login) ELS IU via the transport, * returning TRUE upon success, else returning FALSE */ static int sf_do_prli(struct sf *sf, struct sf_els_hdr *privp, struct la_els_logi *ptr) { struct la_els_prli *prli = (struct la_els_prli *)privp->cmd; struct fcp_prli *fprli; struct fcal_packet *fpkt = privp->fpkt; fpkt->fcal_socal_request.sr_dataseg[0].fc_count = sizeof (struct la_els_prli); privp->els_code = LA_ELS_PRLI; fprli = (struct fcp_prli *)prli->service_params; prli->ls_code = LA_ELS_PRLI; prli->page_length = 0x10; prli->payload_length = sizeof (struct la_els_prli); fprli->type = 0x08; /* no define here? */ fprli->resvd1 = 0; fprli->orig_process_assoc_valid = 0; fprli->resp_process_assoc_valid = 0; fprli->establish_image_pair = 1; fprli->resvd2 = 0; fprli->resvd3 = 0; fprli->data_overlay_allowed = 0; fprli->initiator_fn = 1; fprli->target_fn = 0; fprli->cmd_data_mixed = 0; fprli->data_resp_mixed = 0; fprli->read_xfer_rdy_disabled = 1; fprli->write_xfer_rdy_disabled = 0; bcopy((caddr_t)&ptr->nport_ww_name, (caddr_t)&privp->port_wwn, sizeof (privp->port_wwn)); bcopy((caddr_t)&ptr->node_ww_name, (caddr_t)&privp->node_wwn, sizeof (privp->node_wwn)); privp->timeout = sf_watchdog_time + SF_ELS_TIMEOUT; return (sf_els_transport(sf, privp)); } /* * send an ADISC (address discovery) ELS IU via the transport, * returning TRUE upon success, else returning FALSE */ static int sf_do_adisc(struct sf *sf, struct sf_els_hdr *privp) { struct la_els_adisc *adisc = (struct la_els_adisc *)privp->cmd; struct fcal_packet *fpkt = privp->fpkt; privp->els_code = LA_ELS_ADISC; adisc->ls_code = LA_ELS_ADISC; adisc->mbz[0] = 0; adisc->mbz[1] = 0; adisc->mbz[2] = 0; adisc->hard_address = 0; /* ??? */ fpkt->fcal_socal_request.sr_dataseg[0].fc_count = sizeof (struct la_els_adisc); bcopy((caddr_t)&sf->sf_sochandle->fcal_p_wwn, (caddr_t)&adisc->port_wwn, sizeof (adisc->port_wwn)); bcopy((caddr_t)&sf->sf_sochandle->fcal_n_wwn, (caddr_t)&adisc->node_wwn, sizeof (adisc->node_wwn)); adisc->nport_id = sf->sf_al_pa; privp->timeout = sf_watchdog_time + SF_ELS_TIMEOUT; return (sf_els_transport(sf, privp)); } static struct fcal_packet * sf_els_alloc(struct sf *sf, uchar_t dest_id, int priv_size, int cmd_size, int rsp_size, caddr_t *rprivp, caddr_t *cmd_buf) { struct fcal_packet *fpkt; ddi_dma_cookie_t pcookie; ddi_dma_cookie_t rcookie; struct sf_els_hdr *privp; ddi_dma_handle_t cmd_dma_handle = NULL; ddi_dma_handle_t rsp_dma_handle = NULL; ddi_acc_handle_t cmd_acc_handle = NULL; ddi_acc_handle_t rsp_acc_handle = NULL; size_t real_size; uint_t ccount; fc_frame_header_t *hp; int cmd_bound = FALSE, rsp_bound = FALSE; caddr_t cmd = NULL; caddr_t rsp = NULL; if ((fpkt = (struct fcal_packet *)kmem_zalloc( sizeof (struct fcal_packet), KM_NOSLEEP)) == NULL) { SF_DEBUG(1, (sf, CE_WARN, "Could not allocate fcal_packet for ELS\n")); return (NULL); } if ((privp = (struct sf_els_hdr *)kmem_zalloc(priv_size, KM_NOSLEEP)) == NULL) { SF_DEBUG(1, (sf, CE_WARN, "Could not allocate sf_els_hdr for ELS\n")); goto fail; } privp->size = priv_size; fpkt->fcal_pkt_private = (caddr_t)privp; if (ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle->fcal_dmaattr, DDI_DMA_DONTWAIT, NULL, &cmd_dma_handle) != DDI_SUCCESS) { SF_DEBUG(1, (sf, CE_WARN, "Could not allocate DMA handle for ELS\n")); goto fail; } if (ddi_dma_mem_alloc(cmd_dma_handle, cmd_size, sf->sf_sochandle->fcal_accattr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &cmd, &real_size, &cmd_acc_handle) != DDI_SUCCESS) { SF_DEBUG(1, (sf, CE_WARN, "Could not allocate DMA memory for ELS\n")); goto fail; } if (real_size < cmd_size) { SF_DEBUG(1, (sf, CE_WARN, "DMA memory too small for ELS\n")); goto fail; } if (ddi_dma_addr_bind_handle(cmd_dma_handle, NULL, cmd, real_size, DDI_DMA_WRITE | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &pcookie, &ccount) != DDI_DMA_MAPPED) { SF_DEBUG(1, (sf, CE_WARN, "Could not bind DMA memory for ELS\n")); goto fail; } cmd_bound = TRUE; if (ccount != 1) { SF_DEBUG(1, (sf, CE_WARN, "Wrong cookie count for ELS\n")); goto fail; } if (ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle->fcal_dmaattr, DDI_DMA_DONTWAIT, NULL, &rsp_dma_handle) != DDI_SUCCESS) { SF_DEBUG(1, (sf, CE_WARN, "Could not allocate DMA handle for ELS rsp\n")); goto fail; } if (ddi_dma_mem_alloc(rsp_dma_handle, rsp_size, sf->sf_sochandle->fcal_accattr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &rsp, &real_size, &rsp_acc_handle) != DDI_SUCCESS) { SF_DEBUG(1, (sf, CE_WARN, "Could not allocate DMA memory for ELS rsp\n")); goto fail; } if (real_size < rsp_size) { SF_DEBUG(1, (sf, CE_WARN, "DMA memory too small for ELS rsp\n")); goto fail; } if (ddi_dma_addr_bind_handle(rsp_dma_handle, NULL, rsp, real_size, DDI_DMA_READ | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &rcookie, &ccount) != DDI_DMA_MAPPED) { SF_DEBUG(1, (sf, CE_WARN, "Could not bind DMA memory for ELS rsp\n")); goto fail; } rsp_bound = TRUE; if (ccount != 1) { SF_DEBUG(1, (sf, CE_WARN, "Wrong cookie count for ELS rsp\n")); goto fail; } privp->cmd = cmd; privp->sf = sf; privp->cmd_dma_handle = cmd_dma_handle; privp->cmd_acc_handle = cmd_acc_handle; privp->rsp = rsp; privp->rsp_dma_handle = rsp_dma_handle; privp->rsp_acc_handle = rsp_acc_handle; privp->dest_nport_id = dest_id; privp->fpkt = fpkt; fpkt->fcal_pkt_cookie = sf->sf_socp; fpkt->fcal_pkt_comp = sf_els_callback; fpkt->fcal_magic = FCALP_MAGIC; fpkt->fcal_pkt_flags = 0; fpkt->fcal_socal_request.sr_soc_hdr.sh_flags = (ushort_t)(SOC_FC_HEADER | sf->sf_sochandle->fcal_portno); fpkt->fcal_socal_request.sr_soc_hdr.sh_class = 3; fpkt->fcal_socal_request.sr_soc_hdr.sh_seg_cnt = 2; fpkt->fcal_socal_request.sr_soc_hdr.sh_byte_cnt = cmd_size; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_count = 1; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_flags = 0; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_seqno = 0; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_type = CQ_TYPE_SIMPLE; fpkt->fcal_socal_request.sr_dataseg[0].fc_base = (uint32_t) pcookie.dmac_address; fpkt->fcal_socal_request.sr_dataseg[0].fc_count = cmd_size; fpkt->fcal_socal_request.sr_dataseg[1].fc_base = (uint32_t) rcookie.dmac_address; fpkt->fcal_socal_request.sr_dataseg[1].fc_count = rsp_size; /* Fill in the Fabric Channel Header */ hp = &fpkt->fcal_socal_request.sr_fc_frame_hdr; hp->r_ctl = R_CTL_ELS_REQ; hp->d_id = dest_id; hp->s_id = sf->sf_al_pa; hp->type = TYPE_EXTENDED_LS; hp->reserved1 = 0; hp->f_ctl = F_CTL_SEQ_INITIATIVE | F_CTL_FIRST_SEQ; hp->seq_id = 0; hp->df_ctl = 0; hp->seq_cnt = 0; hp->ox_id = 0xffff; hp->rx_id = 0xffff; hp->ro = 0; *rprivp = (caddr_t)privp; *cmd_buf = cmd; return (fpkt); fail: if (cmd_dma_handle != NULL) { if (cmd_bound) { (void) ddi_dma_unbind_handle(cmd_dma_handle); } ddi_dma_free_handle(&cmd_dma_handle); privp->cmd_dma_handle = NULL; } if (rsp_dma_handle != NULL) { if (rsp_bound) { (void) ddi_dma_unbind_handle(rsp_dma_handle); } ddi_dma_free_handle(&rsp_dma_handle); privp->rsp_dma_handle = NULL; } sf_els_free(fpkt); return (NULL); } static void sf_els_free(struct fcal_packet *fpkt) { struct sf_els_hdr *privp = fpkt->fcal_pkt_private; if (privp != NULL) { if (privp->cmd_dma_handle != NULL) { (void) ddi_dma_unbind_handle(privp->cmd_dma_handle); ddi_dma_free_handle(&privp->cmd_dma_handle); } if (privp->cmd != NULL) { ddi_dma_mem_free(&privp->cmd_acc_handle); } if (privp->rsp_dma_handle != NULL) { (void) ddi_dma_unbind_handle(privp->rsp_dma_handle); ddi_dma_free_handle(&privp->rsp_dma_handle); } if (privp->rsp != NULL) { ddi_dma_mem_free(&privp->rsp_acc_handle); } if (privp->data_dma_handle) { (void) ddi_dma_unbind_handle(privp->data_dma_handle); ddi_dma_free_handle(&privp->data_dma_handle); } if (privp->data_buf) { ddi_dma_mem_free(&privp->data_acc_handle); } kmem_free(privp, privp->size); } kmem_free(fpkt, sizeof (struct fcal_packet)); } static struct sf_target * sf_create_target(struct sf *sf, struct sf_els_hdr *privp, int tnum, int64_t lun) { struct sf_target *target, *ntarget, *otarget, *ptarget; int hash; #ifdef RAID_LUNS int64_t orig_lun = lun; /* XXXX Work around SCSA limitations. */ lun = *((short *)&lun); #endif ntarget = kmem_zalloc(sizeof (struct sf_target), KM_NOSLEEP); mutex_enter(&sf->sf_mutex); if (sf->sf_lip_cnt != privp->lip_cnt) { mutex_exit(&sf->sf_mutex); if (ntarget != NULL) kmem_free(ntarget, sizeof (struct sf_target)); return (NULL); } target = sf_lookup_target(sf, privp->port_wwn, lun); if (lun != 0) { /* * Since LUNs != 0 are queued up after LUN == 0, find LUN == 0 * and enqueue the new LUN. */ if ((ptarget = sf_lookup_target(sf, privp->port_wwn, (int64_t)0)) == NULL) { /* * Yeep -- no LUN 0? */ mutex_exit(&sf->sf_mutex); sf_log(sf, CE_WARN, "target 0x%x " "lun %" PRIx64 ": No LUN 0\n", tnum, lun); if (ntarget != NULL) kmem_free(ntarget, sizeof (struct sf_target)); return (NULL); } mutex_enter(&ptarget->sft_mutex); if (target != NULL && ptarget->sft_lip_cnt == sf->sf_lip_cnt && ptarget->sft_state&SF_TARGET_OFFLINE) { /* LUN 0 already finished, duplicate its state */ mutex_exit(&ptarget->sft_mutex); sf_offline_target(sf, target); mutex_exit(&sf->sf_mutex); if (ntarget != NULL) kmem_free(ntarget, sizeof (struct sf_target)); return (target); } else if (target != NULL) { /* * LUN 0 online or not examined yet. * Try to bring the LUN back online */ mutex_exit(&ptarget->sft_mutex); mutex_enter(&target->sft_mutex); target->sft_lip_cnt = privp->lip_cnt; target->sft_state |= SF_TARGET_BUSY; target->sft_state &= ~(SF_TARGET_OFFLINE| SF_TARGET_MARK); target->sft_al_pa = (uchar_t)privp->dest_nport_id; target->sft_hard_address = sf_switch_to_alpa[tnum]; mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); if (ntarget != NULL) kmem_free(ntarget, sizeof (struct sf_target)); return (target); } mutex_exit(&ptarget->sft_mutex); if (ntarget == NULL) { mutex_exit(&sf->sf_mutex); return (NULL); } /* Initialize new target structure */ bcopy((caddr_t)&privp->node_wwn, (caddr_t)&ntarget->sft_node_wwn, sizeof (privp->node_wwn)); bcopy((caddr_t)&privp->port_wwn, (caddr_t)&ntarget->sft_port_wwn, sizeof (privp->port_wwn)); ntarget->sft_lun.l = lun; #ifdef RAID_LUNS ntarget->sft_lun.l = orig_lun; ntarget->sft_raid_lun = (uint_t)lun; #endif mutex_init(&ntarget->sft_mutex, NULL, MUTEX_DRIVER, NULL); mutex_init(&ntarget->sft_pkt_mutex, NULL, MUTEX_DRIVER, NULL); /* Don't let anyone use this till we finishup init. */ mutex_enter(&ntarget->sft_mutex); mutex_enter(&ntarget->sft_pkt_mutex); hash = SF_HASH(privp->port_wwn, lun); ntarget->sft_next = sf->sf_wwn_lists[hash]; sf->sf_wwn_lists[hash] = ntarget; ntarget->sft_lip_cnt = privp->lip_cnt; ntarget->sft_al_pa = (uchar_t)privp->dest_nport_id; ntarget->sft_hard_address = sf_switch_to_alpa[tnum]; ntarget->sft_device_type = DTYPE_UNKNOWN; ntarget->sft_state = SF_TARGET_BUSY; ntarget->sft_pkt_head = (struct sf_pkt *)&ntarget-> sft_pkt_head; ntarget->sft_pkt_tail = (struct sf_pkt *)&ntarget-> sft_pkt_head; mutex_enter(&ptarget->sft_mutex); /* Traverse the list looking for this target */ for (target = ptarget; target->sft_next_lun; target = target->sft_next_lun) { otarget = target->sft_next_lun; } ntarget->sft_next_lun = target->sft_next_lun; target->sft_next_lun = ntarget; mutex_exit(&ptarget->sft_mutex); mutex_exit(&ntarget->sft_pkt_mutex); mutex_exit(&ntarget->sft_mutex); mutex_exit(&sf->sf_mutex); return (ntarget); } if (target != NULL && target->sft_lip_cnt == sf->sf_lip_cnt) { /* It's been touched this LIP -- duplicate WWNs */ sf_offline_target(sf, target); /* And all the baby targets */ mutex_exit(&sf->sf_mutex); sf_log(sf, CE_WARN, "target 0x%x, duplicate port wwns\n", tnum); if (ntarget != NULL) { kmem_free(ntarget, sizeof (struct sf_target)); } return (NULL); } if ((otarget = sf->sf_targets[tnum]) != NULL) { /* Someone else is in our slot */ mutex_enter(&otarget->sft_mutex); if (otarget->sft_lip_cnt == sf->sf_lip_cnt) { mutex_exit(&otarget->sft_mutex); sf_offline_target(sf, otarget); if (target != NULL) sf_offline_target(sf, target); mutex_exit(&sf->sf_mutex); sf_log(sf, CE_WARN, "target 0x%x, duplicate switch settings\n", tnum); if (ntarget != NULL) kmem_free(ntarget, sizeof (struct sf_target)); return (NULL); } mutex_exit(&otarget->sft_mutex); if (bcmp((caddr_t)&privp->port_wwn, (caddr_t)&otarget-> sft_port_wwn, sizeof (privp->port_wwn))) { sf_offline_target(sf, otarget); mutex_exit(&sf->sf_mutex); sf_log(sf, CE_WARN, "wwn changed on target 0x%x\n", tnum); bzero((caddr_t)&sf->sf_stats.tstats[tnum], sizeof (struct sf_target_stats)); mutex_enter(&sf->sf_mutex); } } sf->sf_targets[tnum] = target; if ((target = sf->sf_targets[tnum]) == NULL) { if (ntarget == NULL) { mutex_exit(&sf->sf_mutex); return (NULL); } bcopy((caddr_t)&privp->node_wwn, (caddr_t)&ntarget->sft_node_wwn, sizeof (privp->node_wwn)); bcopy((caddr_t)&privp->port_wwn, (caddr_t)&ntarget->sft_port_wwn, sizeof (privp->port_wwn)); ntarget->sft_lun.l = lun; #ifdef RAID_LUNS ntarget->sft_lun.l = orig_lun; ntarget->sft_raid_lun = (uint_t)lun; #endif mutex_init(&ntarget->sft_mutex, NULL, MUTEX_DRIVER, NULL); mutex_init(&ntarget->sft_pkt_mutex, NULL, MUTEX_DRIVER, NULL); mutex_enter(&ntarget->sft_mutex); mutex_enter(&ntarget->sft_pkt_mutex); hash = SF_HASH(privp->port_wwn, lun); /* lun 0 */ ntarget->sft_next = sf->sf_wwn_lists[hash]; sf->sf_wwn_lists[hash] = ntarget; target = ntarget; target->sft_lip_cnt = privp->lip_cnt; target->sft_al_pa = (uchar_t)privp->dest_nport_id; target->sft_hard_address = sf_switch_to_alpa[tnum]; target->sft_device_type = DTYPE_UNKNOWN; target->sft_state = SF_TARGET_BUSY; target->sft_pkt_head = (struct sf_pkt *)&target-> sft_pkt_head; target->sft_pkt_tail = (struct sf_pkt *)&target-> sft_pkt_head; sf->sf_targets[tnum] = target; mutex_exit(&ntarget->sft_mutex); mutex_exit(&ntarget->sft_pkt_mutex); mutex_exit(&sf->sf_mutex); } else { mutex_enter(&target->sft_mutex); target->sft_lip_cnt = privp->lip_cnt; target->sft_state |= SF_TARGET_BUSY; target->sft_state &= ~(SF_TARGET_OFFLINE|SF_TARGET_MARK); target->sft_al_pa = (uchar_t)privp->dest_nport_id; target->sft_hard_address = sf_switch_to_alpa[tnum]; mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); if (ntarget != NULL) kmem_free(ntarget, sizeof (struct sf_target)); } return (target); } /* * find the target for a given sf instance */ /* ARGSUSED */ static struct sf_target * #ifdef RAID_LUNS sf_lookup_target(struct sf *sf, uchar_t *wwn, int lun) #else sf_lookup_target(struct sf *sf, uchar_t *wwn, int64_t lun) #endif { int hash; struct sf_target *target; ASSERT(mutex_owned(&sf->sf_mutex)); hash = SF_HASH(wwn, lun); target = sf->sf_wwn_lists[hash]; while (target != NULL) { #ifndef RAID_LUNS if (bcmp((caddr_t)wwn, (caddr_t)&target->sft_port_wwn, sizeof (target->sft_port_wwn)) == 0 && target->sft_lun.l == lun) break; #else if (bcmp((caddr_t)wwn, (caddr_t)&target->sft_port_wwn, sizeof (target->sft_port_wwn)) == 0 && target->sft_raid_lun == lun) break; #endif target = target->sft_next; } return (target); } /* * Send out a REPORT_LUNS command. */ static int sf_do_reportlun(struct sf *sf, struct sf_els_hdr *privp, struct sf_target *target) { struct fcal_packet *fpkt = privp->fpkt; ddi_dma_cookie_t pcookie; ddi_dma_handle_t lun_dma_handle = NULL; ddi_acc_handle_t lun_acc_handle; uint_t ccount; size_t real_size; caddr_t lun_buf = NULL; int handle_bound = 0; fc_frame_header_t *hp = &fpkt->fcal_socal_request.sr_fc_frame_hdr; struct fcp_cmd *reportlun = (struct fcp_cmd *)privp->cmd; char *msg = "Transport"; if (ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle->fcal_dmaattr, DDI_DMA_DONTWAIT, NULL, &lun_dma_handle) != DDI_SUCCESS) { msg = "ddi_dma_alloc_handle()"; goto fail; } if (ddi_dma_mem_alloc(lun_dma_handle, REPORT_LUNS_SIZE, sf->sf_sochandle->fcal_accattr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &lun_buf, &real_size, &lun_acc_handle) != DDI_SUCCESS) { msg = "ddi_dma_mem_alloc()"; goto fail; } if (real_size < REPORT_LUNS_SIZE) { msg = "DMA mem < REPORT_LUNS_SIZE"; goto fail; } if (ddi_dma_addr_bind_handle(lun_dma_handle, NULL, lun_buf, real_size, DDI_DMA_READ | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &pcookie, &ccount) != DDI_DMA_MAPPED) { msg = "ddi_dma_addr_bind_handle()"; goto fail; } handle_bound = 1; if (ccount != 1) { msg = "ccount != 1"; goto fail; } privp->els_code = 0; privp->target = target; privp->data_dma_handle = lun_dma_handle; privp->data_acc_handle = lun_acc_handle; privp->data_buf = lun_buf; fpkt->fcal_pkt_comp = sf_reportlun_callback; fpkt->fcal_socal_request.sr_soc_hdr.sh_seg_cnt = 3; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_type = CQ_TYPE_IO_READ; fpkt->fcal_socal_request.sr_dataseg[0].fc_count = sizeof (struct fcp_cmd); fpkt->fcal_socal_request.sr_dataseg[2].fc_base = (uint32_t)pcookie.dmac_address; fpkt->fcal_socal_request.sr_dataseg[2].fc_count = pcookie.dmac_size; fpkt->fcal_socal_request.sr_soc_hdr.sh_byte_cnt = pcookie.dmac_size; hp->r_ctl = R_CTL_COMMAND; hp->type = TYPE_SCSI_FCP; bzero((caddr_t)reportlun, sizeof (struct fcp_cmd)); ((union scsi_cdb *)reportlun->fcp_cdb)->scc_cmd = SCMD_REPORT_LUNS; /* Now set the buffer size. If DDI gave us extra, that's O.K. */ ((union scsi_cdb *)reportlun->fcp_cdb)->scc5_count0 = (real_size&0x0ff); ((union scsi_cdb *)reportlun->fcp_cdb)->scc5_count1 = (real_size>>8)&0x0ff; ((union scsi_cdb *)reportlun->fcp_cdb)->scc5_count2 = (real_size>>16)&0x0ff; ((union scsi_cdb *)reportlun->fcp_cdb)->scc5_count3 = (real_size>>24)&0x0ff; reportlun->fcp_cntl.cntl_read_data = 1; reportlun->fcp_cntl.cntl_write_data = 0; reportlun->fcp_data_len = pcookie.dmac_size; reportlun->fcp_cntl.cntl_qtype = FCP_QTYPE_SIMPLE; (void) ddi_dma_sync(lun_dma_handle, 0, 0, DDI_DMA_SYNC_FORDEV); /* We know he's there, so this should be fast */ privp->timeout = sf_watchdog_time + SF_FCP_TIMEOUT; if (sf_els_transport(sf, privp) == 1) return (1); fail: sf_log(sf, CE_WARN, "%s failure for REPORTLUN to target 0x%x\n", msg, sf_alpa_to_switch[privp->dest_nport_id]); sf_els_free(fpkt); if (lun_dma_handle != NULL) { if (handle_bound) (void) ddi_dma_unbind_handle(lun_dma_handle); ddi_dma_free_handle(&lun_dma_handle); } if (lun_buf != NULL) { ddi_dma_mem_free(&lun_acc_handle); } return (0); } /* * Handle the results of a REPORT_LUNS command: * Create additional targets if necessary * Initiate INQUIRYs on all LUNs. */ static void sf_reportlun_callback(struct fcal_packet *fpkt) { struct sf_els_hdr *privp = (struct sf_els_hdr *)fpkt-> fcal_pkt_private; struct scsi_report_luns *ptr = (struct scsi_report_luns *)privp->data_buf; struct sf *sf = privp->sf; struct sf_target *target = privp->target; struct fcp_rsp *rsp = NULL; int delayed_retry = 0; int tid = sf_alpa_to_switch[target->sft_hard_address]; int i, free_pkt = 1; short ncmds; mutex_enter(&sf->sf_mutex); /* use as temporary state variable */ if (privp->timeout == SF_INVALID_TIMEOUT) { mutex_exit(&sf->sf_mutex); return; } if (privp->prev) privp->prev->next = privp->next; if (privp->next) privp->next->prev = privp->prev; if (sf->sf_els_list == privp) sf->sf_els_list = privp->next; privp->prev = privp->next = NULL; mutex_exit(&sf->sf_mutex); ncmds = fpkt->fcal_ncmds; ASSERT(ncmds >= 0); mutex_enter(&sf->sf_cmd_mutex); sf->sf_ncmds = ncmds; mutex_exit(&sf->sf_cmd_mutex); if (fpkt->fcal_pkt_status == FCAL_STATUS_OK) { (void) ddi_dma_sync(privp->rsp_dma_handle, 0, 0, DDI_DMA_SYNC_FORKERNEL); rsp = (struct fcp_rsp *)privp->rsp; } SF_DEBUG(1, (sf, CE_CONT, "!REPORTLUN to al_pa %x pkt status %x scsi status %x\n", privp->dest_nport_id, fpkt->fcal_pkt_status, rsp?rsp->fcp_u.fcp_status.scsi_status:0)); /* See if target simply does not support REPORT_LUNS. */ if (rsp && rsp->fcp_u.fcp_status.scsi_status == STATUS_CHECK && rsp->fcp_u.fcp_status.sense_len_set && rsp->fcp_sense_len >= offsetof(struct scsi_extended_sense, es_qual_code)) { struct scsi_extended_sense *sense; sense = (struct scsi_extended_sense *) ((caddr_t)rsp + sizeof (struct fcp_rsp) + rsp->fcp_response_len); if (sense->es_key == KEY_ILLEGAL_REQUEST) { if (sense->es_add_code == 0x20) { /* Fake LUN 0 */ SF_DEBUG(1, (sf, CE_CONT, "!REPORTLUN Faking good " "completion for alpa %x\n", privp->dest_nport_id)); ptr->lun_list_len = FCP_LUN_SIZE; ptr->lun[0] = 0; rsp->fcp_u.fcp_status.scsi_status = STATUS_GOOD; } else if (sense->es_add_code == 0x25) { SF_DEBUG(1, (sf, CE_CONT, "!REPORTLUN device alpa %x " "key %x code %x\n", privp->dest_nport_id, sense->es_key, sense->es_add_code)); goto fail; } } else if (sense->es_key == KEY_UNIT_ATTENTION && sense->es_add_code == 0x29) { SF_DEBUG(1, (sf, CE_CONT, "!REPORTLUN device alpa %x was reset\n", privp->dest_nport_id)); } else { SF_DEBUG(1, (sf, CE_CONT, "!REPORTLUN device alpa %x " "key %x code %x\n", privp->dest_nport_id, sense->es_key, sense->es_add_code)); /* XXXXXX The following is here to handle broken targets -- remove it later */ if (sf_reportlun_forever && sense->es_key == KEY_UNIT_ATTENTION) goto retry; /* XXXXXX */ if (sense->es_key == KEY_NOT_READY) delayed_retry = 1; } } if (rsp && rsp->fcp_u.fcp_status.scsi_status == STATUS_GOOD) { struct fcp_rsp_info *bep; bep = (struct fcp_rsp_info *)(&rsp-> fcp_response_len + 1); if (!rsp->fcp_u.fcp_status.rsp_len_set || bep->rsp_code == FCP_NO_FAILURE) { (void) ddi_dma_sync(privp->data_dma_handle, 0, 0, DDI_DMA_SYNC_FORKERNEL); /* Convert from #bytes to #ints */ ptr->lun_list_len = ptr->lun_list_len >> 3; SF_DEBUG(2, (sf, CE_CONT, "!REPORTLUN to al_pa %x succeeded: %d LUNs\n", privp->dest_nport_id, ptr->lun_list_len)); if (!ptr->lun_list_len) { /* No LUNs? Ya gotta be kidding... */ sf_log(sf, CE_WARN, "SCSI violation -- " "target 0x%x reports no LUNs\n", sf_alpa_to_switch[ privp->dest_nport_id]); ptr->lun_list_len = 1; ptr->lun[0] = 0; } mutex_enter(&sf->sf_mutex); if (sf->sf_lip_cnt == privp->lip_cnt) { sf->sf_device_count += ptr->lun_list_len - 1; } mutex_exit(&sf->sf_mutex); for (i = 0; i < ptr->lun_list_len && privp->lip_cnt == sf->sf_lip_cnt; i++) { struct sf_els_hdr *nprivp; struct fcal_packet *nfpkt; /* LUN 0 is already in `target' */ if (ptr->lun[i] != 0) { target = sf_create_target(sf, privp, tid, ptr->lun[i]); } nprivp = NULL; nfpkt = NULL; if (target) { nfpkt = sf_els_alloc(sf, target->sft_al_pa, sizeof (struct sf_els_hdr), sizeof (union sf_els_cmd), sizeof (union sf_els_rsp), (caddr_t *)&nprivp, (caddr_t *)&rsp); if (nprivp) nprivp->lip_cnt = privp->lip_cnt; } if (nfpkt && nprivp && (sf_do_inquiry(sf, nprivp, target) == 0)) { mutex_enter(&sf->sf_mutex); if (sf->sf_lip_cnt == privp-> lip_cnt) { sf->sf_device_count --; } sf_offline_target(sf, target); mutex_exit(&sf->sf_mutex); } } sf_els_free(fpkt); return; } else { SF_DEBUG(1, (sf, CE_CONT, "!REPORTLUN al_pa %x fcp failure, " "fcp_rsp_code %x scsi status %x\n", privp->dest_nport_id, bep->rsp_code, rsp ? rsp->fcp_u.fcp_status.scsi_status:0)); goto fail; } } if (rsp && ((rsp->fcp_u.fcp_status.scsi_status == STATUS_BUSY) || (rsp->fcp_u.fcp_status.scsi_status == STATUS_QFULL))) { delayed_retry = 1; } if (++(privp->retries) < sf_els_retries || (delayed_retry && privp->retries < SF_BSY_RETRIES)) { /* XXXXXX The following is here to handle broken targets -- remove it later */ retry: /* XXXXXX */ if (delayed_retry) { privp->retries--; privp->timeout = sf_watchdog_time + SF_BSY_TIMEOUT; privp->delayed_retry = 1; } else { privp->timeout = sf_watchdog_time + SF_FCP_TIMEOUT; } privp->prev = NULL; mutex_enter(&sf->sf_mutex); if (privp->lip_cnt == sf->sf_lip_cnt) { if (!delayed_retry) SF_DEBUG(1, (sf, CE_WARN, "!REPORTLUN to al_pa %x failed, retrying\n", privp->dest_nport_id)); privp->next = sf->sf_els_list; if (sf->sf_els_list != NULL) sf->sf_els_list->prev = privp; sf->sf_els_list = privp; mutex_exit(&sf->sf_mutex); if (!delayed_retry && soc_transport(sf->sf_sochandle, fpkt, FCAL_NOSLEEP, CQ_REQUEST_1) != FCAL_TRANSPORT_SUCCESS) { mutex_enter(&sf->sf_mutex); if (privp->prev) privp->prev->next = privp->next; if (privp->next) privp->next->prev = privp->prev; if (sf->sf_els_list == privp) sf->sf_els_list = privp->next; mutex_exit(&sf->sf_mutex); goto fail; } else return; } else { mutex_exit(&sf->sf_mutex); } } else { fail: /* REPORT_LUN failed -- try inquiry */ if (sf_do_inquiry(sf, privp, target) != 0) { return; } else { free_pkt = 0; } mutex_enter(&sf->sf_mutex); if (sf->sf_lip_cnt == privp->lip_cnt) { sf_log(sf, CE_WARN, "!REPORTLUN to target 0x%x failed\n", sf_alpa_to_switch[privp->dest_nport_id]); sf_offline_target(sf, target); sf->sf_device_count--; ASSERT(sf->sf_device_count >= 0); if (sf->sf_device_count == 0) sf_finish_init(sf, privp->lip_cnt); } mutex_exit(&sf->sf_mutex); } if (free_pkt) { sf_els_free(fpkt); } } static int sf_do_inquiry(struct sf *sf, struct sf_els_hdr *privp, struct sf_target *target) { struct fcal_packet *fpkt = privp->fpkt; ddi_dma_cookie_t pcookie; ddi_dma_handle_t inq_dma_handle = NULL; ddi_acc_handle_t inq_acc_handle; uint_t ccount; size_t real_size; caddr_t inq_buf = NULL; int handle_bound = FALSE; fc_frame_header_t *hp = &fpkt->fcal_socal_request.sr_fc_frame_hdr; struct fcp_cmd *inq = (struct fcp_cmd *)privp->cmd; char *msg = "Transport"; if (ddi_dma_alloc_handle(sf->sf_dip, sf->sf_sochandle->fcal_dmaattr, DDI_DMA_DONTWAIT, NULL, &inq_dma_handle) != DDI_SUCCESS) { msg = "ddi_dma_alloc_handle()"; goto fail; } if (ddi_dma_mem_alloc(inq_dma_handle, SUN_INQSIZE, sf->sf_sochandle->fcal_accattr, DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &inq_buf, &real_size, &inq_acc_handle) != DDI_SUCCESS) { msg = "ddi_dma_mem_alloc()"; goto fail; } if (real_size < SUN_INQSIZE) { msg = "DMA mem < inquiry size"; goto fail; } if (ddi_dma_addr_bind_handle(inq_dma_handle, NULL, inq_buf, real_size, DDI_DMA_READ | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, NULL, &pcookie, &ccount) != DDI_DMA_MAPPED) { msg = "ddi_dma_addr_bind_handle()"; goto fail; } handle_bound = TRUE; if (ccount != 1) { msg = "ccount != 1"; goto fail; } privp->els_code = 0; /* not an ELS command */ privp->target = target; privp->data_dma_handle = inq_dma_handle; privp->data_acc_handle = inq_acc_handle; privp->data_buf = inq_buf; fpkt->fcal_pkt_comp = sf_inq_callback; fpkt->fcal_socal_request.sr_soc_hdr.sh_seg_cnt = 3; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_type = CQ_TYPE_IO_READ; fpkt->fcal_socal_request.sr_dataseg[0].fc_count = sizeof (struct fcp_cmd); fpkt->fcal_socal_request.sr_dataseg[2].fc_base = (uint32_t)pcookie.dmac_address; fpkt->fcal_socal_request.sr_dataseg[2].fc_count = pcookie.dmac_size; fpkt->fcal_socal_request.sr_soc_hdr.sh_byte_cnt = pcookie.dmac_size; hp->r_ctl = R_CTL_COMMAND; hp->type = TYPE_SCSI_FCP; bzero((caddr_t)inq, sizeof (struct fcp_cmd)); ((union scsi_cdb *)inq->fcp_cdb)->scc_cmd = SCMD_INQUIRY; ((union scsi_cdb *)inq->fcp_cdb)->g0_count0 = SUN_INQSIZE; bcopy((caddr_t)&target->sft_lun.b, (caddr_t)&inq->fcp_ent_addr, FCP_LUN_SIZE); inq->fcp_cntl.cntl_read_data = 1; inq->fcp_cntl.cntl_write_data = 0; inq->fcp_data_len = pcookie.dmac_size; inq->fcp_cntl.cntl_qtype = FCP_QTYPE_SIMPLE; (void) ddi_dma_sync(inq_dma_handle, (off_t)0, (size_t)0, DDI_DMA_SYNC_FORDEV); privp->timeout = sf_watchdog_time + SF_FCP_TIMEOUT; SF_DEBUG(5, (sf, CE_WARN, "!Sending INQUIRY to al_pa %x lun %" PRIx64 "\n", privp->dest_nport_id, SCSA_LUN(target))); return (sf_els_transport(sf, privp)); fail: sf_log(sf, CE_WARN, "%s failure for INQUIRY to target 0x%x\n", msg, sf_alpa_to_switch[privp->dest_nport_id]); sf_els_free(fpkt); if (inq_dma_handle != NULL) { if (handle_bound) { (void) ddi_dma_unbind_handle(inq_dma_handle); } ddi_dma_free_handle(&inq_dma_handle); } if (inq_buf != NULL) { ddi_dma_mem_free(&inq_acc_handle); } return (FALSE); } /* * called as the pkt_comp routine for INQ packets */ static void sf_inq_callback(struct fcal_packet *fpkt) { struct sf_els_hdr *privp = (struct sf_els_hdr *)fpkt-> fcal_pkt_private; struct scsi_inquiry *prt = (struct scsi_inquiry *)privp->data_buf; struct sf *sf = privp->sf; struct sf *tsf; struct sf_target *target = privp->target; struct fcp_rsp *rsp; int delayed_retry = FALSE; short ncmds; mutex_enter(&sf->sf_mutex); /* use as temporary state variable */ if (privp->timeout == SF_INVALID_TIMEOUT) { mutex_exit(&sf->sf_mutex); return; } if (privp->prev != NULL) { privp->prev->next = privp->next; } if (privp->next != NULL) { privp->next->prev = privp->prev; } if (sf->sf_els_list == privp) { sf->sf_els_list = privp->next; } privp->prev = privp->next = NULL; mutex_exit(&sf->sf_mutex); ncmds = fpkt->fcal_ncmds; ASSERT(ncmds >= 0); mutex_enter(&sf->sf_cmd_mutex); sf->sf_ncmds = ncmds; mutex_exit(&sf->sf_cmd_mutex); if (fpkt->fcal_pkt_status == FCAL_STATUS_OK) { (void) ddi_dma_sync(privp->rsp_dma_handle, (off_t)0, (size_t)0, DDI_DMA_SYNC_FORKERNEL); rsp = (struct fcp_rsp *)privp->rsp; SF_DEBUG(2, (sf, CE_CONT, "!INQUIRY to al_pa %x scsi status %x", privp->dest_nport_id, rsp->fcp_u.fcp_status.scsi_status)); if ((rsp->fcp_u.fcp_status.scsi_status == STATUS_GOOD) && !rsp->fcp_u.fcp_status.resid_over && (!rsp->fcp_u.fcp_status.resid_under || ((SUN_INQSIZE - rsp->fcp_resid) >= SUN_MIN_INQLEN))) { struct fcp_rsp_info *bep; bep = (struct fcp_rsp_info *)(&rsp-> fcp_response_len + 1); if (!rsp->fcp_u.fcp_status.rsp_len_set || (bep->rsp_code == FCP_NO_FAILURE)) { SF_DEBUG(2, (sf, CE_CONT, "!INQUIRY to al_pa %x lun %" PRIx64 " succeeded\n", privp->dest_nport_id, SCSA_LUN(target))); (void) ddi_dma_sync(privp->data_dma_handle, (off_t)0, (size_t)0, DDI_DMA_SYNC_FORKERNEL); mutex_enter(&sf->sf_mutex); if (sf->sf_lip_cnt == privp->lip_cnt) { mutex_enter(&target->sft_mutex); target->sft_device_type = prt->inq_dtype; bcopy(prt, &target->sft_inq, sizeof (*prt)); mutex_exit(&target->sft_mutex); sf->sf_device_count--; ASSERT(sf->sf_device_count >= 0); if (sf->sf_device_count == 0) { sf_finish_init(sf, privp->lip_cnt); } } mutex_exit(&sf->sf_mutex); sf_els_free(fpkt); return; } } else if ((rsp->fcp_u.fcp_status.scsi_status == STATUS_BUSY) || (rsp->fcp_u.fcp_status.scsi_status == STATUS_QFULL) || (rsp->fcp_u.fcp_status.scsi_status == STATUS_CHECK)) { delayed_retry = TRUE; } } else { SF_DEBUG(2, (sf, CE_CONT, "!INQUIRY to al_pa %x fc status %x", privp->dest_nport_id, fpkt->fcal_pkt_status)); } if (++(privp->retries) < sf_els_retries || (delayed_retry && privp->retries < SF_BSY_RETRIES)) { if (fpkt->fcal_pkt_status == FCAL_STATUS_MAX_XCHG_EXCEEDED) { tsf = sf->sf_sibling; if (tsf != NULL) { mutex_enter(&tsf->sf_cmd_mutex); tsf->sf_flag = 1; tsf->sf_throttle = SF_DECR_DELTA; mutex_exit(&tsf->sf_cmd_mutex); } delayed_retry = 1; } if (delayed_retry) { privp->retries--; privp->timeout = sf_watchdog_time + SF_BSY_TIMEOUT; privp->delayed_retry = TRUE; } else { privp->timeout = sf_watchdog_time + SF_FCP_TIMEOUT; } privp->prev = NULL; mutex_enter(&sf->sf_mutex); if (privp->lip_cnt == sf->sf_lip_cnt) { if (!delayed_retry) { SF_DEBUG(1, (sf, CE_WARN, "INQUIRY to al_pa %x failed, retrying", privp->dest_nport_id)); } privp->next = sf->sf_els_list; if (sf->sf_els_list != NULL) { sf->sf_els_list->prev = privp; } sf->sf_els_list = privp; mutex_exit(&sf->sf_mutex); /* if not delayed call transport to send a pkt */ if (!delayed_retry && (soc_transport(sf->sf_sochandle, fpkt, FCAL_NOSLEEP, CQ_REQUEST_1) != FCAL_TRANSPORT_SUCCESS)) { mutex_enter(&sf->sf_mutex); if (privp->prev != NULL) { privp->prev->next = privp->next; } if (privp->next != NULL) { privp->next->prev = privp->prev; } if (sf->sf_els_list == privp) { sf->sf_els_list = privp->next; } mutex_exit(&sf->sf_mutex); goto fail; } return; } mutex_exit(&sf->sf_mutex); } else { fail: mutex_enter(&sf->sf_mutex); if (sf->sf_lip_cnt == privp->lip_cnt) { sf_offline_target(sf, target); sf_log(sf, CE_NOTE, "INQUIRY to target 0x%x lun %" PRIx64 " failed. " "Retry Count: %d\n", sf_alpa_to_switch[privp->dest_nport_id], SCSA_LUN(target), privp->retries); sf->sf_device_count--; ASSERT(sf->sf_device_count >= 0); if (sf->sf_device_count == 0) { sf_finish_init(sf, privp->lip_cnt); } } mutex_exit(&sf->sf_mutex); } sf_els_free(fpkt); } static void sf_finish_init(struct sf *sf, int lip_cnt) { int i; /* loop index */ int cflag; struct sf_target *target; /* current target */ dev_info_t *dip; struct sf_hp_elem *elem; /* hotplug element created */ SF_DEBUG(1, (sf, CE_WARN, "!sf_finish_init\n")); ASSERT(mutex_owned(&sf->sf_mutex)); /* scan all hash queues */ for (i = 0; i < SF_NUM_HASH_QUEUES; i++) { target = sf->sf_wwn_lists[i]; while (target != NULL) { mutex_enter(&target->sft_mutex); /* see if target is not offline */ if ((target->sft_state & SF_TARGET_OFFLINE)) { /* * target already offline */ mutex_exit(&target->sft_mutex); goto next_entry; } /* * target is not already offline -- see if it has * already been marked as ready to go offline */ if (target->sft_state & SF_TARGET_MARK) { /* * target already marked, so take it offline */ mutex_exit(&target->sft_mutex); sf_offline_target(sf, target); goto next_entry; } /* clear target busy flag */ target->sft_state &= ~SF_TARGET_BUSY; /* is target init not yet done ?? */ cflag = !(target->sft_state & SF_TARGET_INIT_DONE); /* get pointer to target dip */ dip = target->sft_dip; mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); if (cflag && (dip == NULL)) { /* * target init not yet done && * devinfo not yet created */ sf_create_devinfo(sf, target, lip_cnt); mutex_enter(&sf->sf_mutex); goto next_entry; } /* * target init already done || devinfo already created */ ASSERT(dip != NULL); if (!sf_create_props(dip, target, lip_cnt)) { /* a problem creating properties */ mutex_enter(&sf->sf_mutex); goto next_entry; } /* create a new element for the hotplug list */ if ((elem = kmem_zalloc(sizeof (struct sf_hp_elem), KM_NOSLEEP)) != NULL) { /* fill in the new element */ elem->dip = dip; elem->target = target; elem->what = SF_ONLINE; /* add the new element into the hotplug list */ mutex_enter(&sf->sf_hp_daemon_mutex); if (sf->sf_hp_elem_tail != NULL) { sf->sf_hp_elem_tail->next = elem; sf->sf_hp_elem_tail = elem; } else { /* this is the first element in list */ sf->sf_hp_elem_head = sf->sf_hp_elem_tail = elem; } cv_signal(&sf->sf_hp_daemon_cv); mutex_exit(&sf->sf_hp_daemon_mutex); } else { /* could not allocate memory for element ?? */ (void) ndi_devi_online_async(dip, 0); } mutex_enter(&sf->sf_mutex); next_entry: /* ensure no new LIPs have occurred */ if (sf->sf_lip_cnt != lip_cnt) { return; } target = target->sft_next; } /* done scanning all targets in this queue */ } /* done with all hash queues */ sf->sf_state = SF_STATE_ONLINE; sf->sf_online_timer = 0; } /* * create devinfo node */ static void sf_create_devinfo(struct sf *sf, struct sf_target *target, int lip_cnt) { dev_info_t *cdip = NULL; char *nname = NULL; char **compatible = NULL; int ncompatible; struct scsi_inquiry *inq = &target->sft_inq; char *scsi_binding_set; /* get the 'scsi-binding-set' property */ if (ddi_prop_lookup_string(DDI_DEV_T_ANY, sf->sf_dip, DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, "scsi-binding-set", &scsi_binding_set) != DDI_PROP_SUCCESS) scsi_binding_set = NULL; /* determine the node name and compatible */ scsi_hba_nodename_compatible_get(inq, scsi_binding_set, inq->inq_dtype, NULL, &nname, &compatible, &ncompatible); if (scsi_binding_set) ddi_prop_free(scsi_binding_set); /* if nodename can't be determined then print a message and skip it */ if (nname == NULL) { #ifndef RAID_LUNS sf_log(sf, CE_WARN, "%s%d: no driver for device " "@w%02x%02x%02x%02x%02x%02x%02x%02x,%x\n" " compatible: %s", ddi_driver_name(sf->sf_dip), ddi_get_instance(sf->sf_dip), target->sft_port_wwn[0], target->sft_port_wwn[1], target->sft_port_wwn[2], target->sft_port_wwn[3], target->sft_port_wwn[4], target->sft_port_wwn[5], target->sft_port_wwn[6], target->sft_port_wwn[7], target->sft_lun.l, *compatible); #else sf_log(sf, CE_WARN, "%s%d: no driver for device " "@w%02x%02x%02x%02x%02x%02x%02x%02x,%x\n" " compatible: %s", ddi_driver_name(sf->sf_dip), ddi_get_instance(sf->sf_dip), target->sft_port_wwn[0], target->sft_port_wwn[1], target->sft_port_wwn[2], target->sft_port_wwn[3], target->sft_port_wwn[4], target->sft_port_wwn[5], target->sft_port_wwn[6], target->sft_port_wwn[7], target->sft_raid_lun, *compatible); #endif goto fail; } /* allocate the node */ if (ndi_devi_alloc(sf->sf_dip, nname, DEVI_SID_NODEID, &cdip) != NDI_SUCCESS) { goto fail; } /* decorate the node with compatible */ if (ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip, "compatible", compatible, ncompatible) != DDI_PROP_SUCCESS) { goto fail; } /* add addressing properties to the node */ if (sf_create_props(cdip, target, lip_cnt) != 1) { goto fail; } mutex_enter(&target->sft_mutex); if (target->sft_dip != NULL) { mutex_exit(&target->sft_mutex); goto fail; } target->sft_dip = cdip; mutex_exit(&target->sft_mutex); if (ndi_devi_online_async(cdip, 0) != DDI_SUCCESS) { goto fail; } scsi_hba_nodename_compatible_free(nname, compatible); return; fail: scsi_hba_nodename_compatible_free(nname, compatible); if (cdip != NULL) { (void) ndi_prop_remove(DDI_DEV_T_NONE, cdip, NODE_WWN_PROP); (void) ndi_prop_remove(DDI_DEV_T_NONE, cdip, PORT_WWN_PROP); (void) ndi_prop_remove(DDI_DEV_T_NONE, cdip, LIP_CNT_PROP); (void) ndi_prop_remove(DDI_DEV_T_NONE, cdip, TARGET_PROP); (void) ndi_prop_remove(DDI_DEV_T_NONE, cdip, LUN_PROP); if (ndi_devi_free(cdip) != NDI_SUCCESS) { sf_log(sf, CE_WARN, "ndi_devi_free failed\n"); } else { mutex_enter(&target->sft_mutex); if (cdip == target->sft_dip) { target->sft_dip = NULL; } mutex_exit(&target->sft_mutex); } } } /* * create required properties, returning TRUE iff we succeed, else * returning FALSE */ static int sf_create_props(dev_info_t *cdip, struct sf_target *target, int lip_cnt) { int tgt_id = sf_alpa_to_switch[target->sft_al_pa]; if (ndi_prop_update_byte_array(DDI_DEV_T_NONE, cdip, NODE_WWN_PROP, target->sft_node_wwn, FC_WWN_SIZE) != DDI_PROP_SUCCESS) { return (FALSE); } if (ndi_prop_update_byte_array(DDI_DEV_T_NONE, cdip, PORT_WWN_PROP, target->sft_port_wwn, FC_WWN_SIZE) != DDI_PROP_SUCCESS) { return (FALSE); } if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, LIP_CNT_PROP, lip_cnt) != DDI_PROP_SUCCESS) { return (FALSE); } if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, TARGET_PROP, tgt_id) != DDI_PROP_SUCCESS) { return (FALSE); } #ifndef RAID_LUNS if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, LUN_PROP, target->sft_lun.l) != DDI_PROP_SUCCESS) { return (0); } #else if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, LUN_PROP, target->sft_raid_lun) != DDI_PROP_SUCCESS) { return (0); } #endif return (TRUE); } /* * called by the transport to offline a target */ /* ARGSUSED */ static void sf_offline_target(struct sf *sf, struct sf_target *target) { dev_info_t *dip; struct sf_target *next_target = NULL; struct sf_hp_elem *elem; ASSERT(mutex_owned(&sf->sf_mutex)); if (sf_core && (sf_core & SF_CORE_OFFLINE_TARGET)) { (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } while (target != NULL) { sf_log(sf, CE_NOTE, "!target 0x%x al_pa 0x%x lun %" PRIx64 " offlined\n", sf_alpa_to_switch[target->sft_al_pa], target->sft_al_pa, SCSA_LUN(target)); mutex_enter(&target->sft_mutex); target->sft_state &= ~(SF_TARGET_BUSY|SF_TARGET_MARK); target->sft_state |= SF_TARGET_OFFLINE; mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); /* XXXX if this is LUN 0, offline all other LUNs */ if (next_target || target->sft_lun.l == 0) next_target = target->sft_next_lun; /* abort all cmds for this target */ sf_abort_all(sf, target, FALSE, sf->sf_lip_cnt, FALSE); mutex_enter(&sf->sf_mutex); mutex_enter(&target->sft_mutex); if (target->sft_state & SF_TARGET_INIT_DONE) { dip = target->sft_dip; mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); (void) ndi_prop_remove(DDI_DEV_T_NONE, dip, TARGET_PROP); (void) ndi_event_retrieve_cookie(sf->sf_event_hdl, dip, FCAL_REMOVE_EVENT, &sf_remove_eid, NDI_EVENT_NOPASS); (void) ndi_event_run_callbacks(sf->sf_event_hdl, target->sft_dip, sf_remove_eid, NULL); elem = kmem_zalloc(sizeof (struct sf_hp_elem), KM_NOSLEEP); if (elem != NULL) { elem->dip = dip; elem->target = target; elem->what = SF_OFFLINE; mutex_enter(&sf->sf_hp_daemon_mutex); if (sf->sf_hp_elem_tail != NULL) { sf->sf_hp_elem_tail->next = elem; sf->sf_hp_elem_tail = elem; } else { sf->sf_hp_elem_head = sf->sf_hp_elem_tail = elem; } cv_signal(&sf->sf_hp_daemon_cv); mutex_exit(&sf->sf_hp_daemon_mutex); } else { /* don't do NDI_DEVI_REMOVE for now */ if (ndi_devi_offline(dip, 0) != NDI_SUCCESS) { SF_DEBUG(1, (sf, CE_WARN, "target %x lun %" PRIx64 ", " "device offline failed", sf_alpa_to_switch[target-> sft_al_pa], SCSA_LUN(target))); } else { SF_DEBUG(1, (sf, CE_NOTE, "target %x, lun %" PRIx64 ", " "device offline succeeded\n", sf_alpa_to_switch[target-> sft_al_pa], SCSA_LUN(target))); } } mutex_enter(&sf->sf_mutex); } else { mutex_exit(&target->sft_mutex); } target = next_target; } } /* * routine to get/set a capability * * returning: * 1 (TRUE) boolean capability is true (on get) * 0 (FALSE) invalid capability, can't set capability (on set), * or boolean capability is false (on get) * -1 (UNDEFINED) can't find capability (SCSA) or unsupported capability * 3 when getting SCSI version number * AL_PA when getting port initiator ID */ static int sf_commoncap(struct scsi_address *ap, char *cap, int val, int tgtonly, int doset) { struct sf *sf = ADDR2SF(ap); int cidx; int rval = FALSE; if (cap == NULL) { SF_DEBUG(3, (sf, CE_WARN, "sf_commoncap: invalid arg")); return (rval); } /* get index of capability string */ if ((cidx = scsi_hba_lookup_capstr(cap)) == -1) { /* can't find capability */ return (UNDEFINED); } if (doset) { /* * Process setcap request. */ /* * At present, we can only set binary (0/1) values */ switch (cidx) { case SCSI_CAP_ARQ: /* can't set this capability */ break; default: SF_DEBUG(3, (sf, CE_WARN, "sf_setcap: unsupported %d", cidx)); rval = UNDEFINED; break; } SF_DEBUG(4, (sf, CE_NOTE, "set cap: cap=%s,val=0x%x,tgtonly=0x%x" ",doset=0x%x,rval=%d\n", cap, val, tgtonly, doset, rval)); } else { /* * Process getcap request. */ switch (cidx) { case SCSI_CAP_DMA_MAX: break; /* don't' have this capability */ case SCSI_CAP_INITIATOR_ID: rval = sf->sf_al_pa; break; case SCSI_CAP_ARQ: rval = TRUE; /* do have this capability */ break; case SCSI_CAP_RESET_NOTIFICATION: case SCSI_CAP_TAGGED_QING: rval = TRUE; /* do have this capability */ break; case SCSI_CAP_SCSI_VERSION: rval = 3; break; case SCSI_CAP_INTERCONNECT_TYPE: rval = INTERCONNECT_FIBRE; break; default: SF_DEBUG(4, (sf, CE_WARN, "sf_scsi_getcap: unsupported")); rval = UNDEFINED; break; } SF_DEBUG(4, (sf, CE_NOTE, "get cap: cap=%s,val=0x%x,tgtonly=0x%x," "doset=0x%x,rval=%d\n", cap, val, tgtonly, doset, rval)); } return (rval); } /* * called by the transport to get a capability */ static int sf_getcap(struct scsi_address *ap, char *cap, int whom) { return (sf_commoncap(ap, cap, 0, whom, FALSE)); } /* * called by the transport to set a capability */ static int sf_setcap(struct scsi_address *ap, char *cap, int value, int whom) { return (sf_commoncap(ap, cap, value, whom, TRUE)); } /* * called by the transport to abort a target */ static int sf_abort(struct scsi_address *ap, struct scsi_pkt *pkt) { struct sf *sf = ADDR2SF(ap); struct sf_target *target = ADDR2TARGET(ap); struct sf_pkt *cmd, *ncmd, *pcmd; struct fcal_packet *fpkt; int rval = 0, t, my_rval = FALSE; int old_target_state; int lip_cnt; int tgt_id; fc_frame_header_t *hp; int deferred_destroy; deferred_destroy = 0; if (pkt != NULL) { cmd = PKT2CMD(pkt); fpkt = cmd->cmd_fp_pkt; SF_DEBUG(2, (sf, CE_NOTE, "sf_abort packet %p\n", (void *)fpkt)); pcmd = NULL; mutex_enter(&sf->sf_cmd_mutex); ncmd = sf->sf_pkt_head; while (ncmd != NULL) { if (ncmd == cmd) { if (pcmd != NULL) { pcmd->cmd_next = cmd->cmd_next; } else { sf->sf_pkt_head = cmd->cmd_next; } cmd->cmd_flags &= ~CFLAG_IN_QUEUE; cmd->cmd_state = SF_STATE_IDLE; pkt->pkt_reason = CMD_ABORTED; pkt->pkt_statistics |= STAT_ABORTED; my_rval = TRUE; break; } else { pcmd = ncmd; ncmd = ncmd->cmd_next; } } mutex_exit(&sf->sf_cmd_mutex); if (ncmd == NULL) { mutex_enter(&cmd->cmd_abort_mutex); if (cmd->cmd_state == SF_STATE_ISSUED) { cmd->cmd_state = SF_STATE_ABORTING; cmd->cmd_timeout = sf_watchdog_time + 20; mutex_exit(&cmd->cmd_abort_mutex); /* call transport to abort command */ if (((rval = soc_abort(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, fpkt, 1)) == FCAL_ABORTED) || (rval == FCAL_ABORT_FAILED)) { my_rval = TRUE; pkt->pkt_reason = CMD_ABORTED; pkt->pkt_statistics |= STAT_ABORTED; cmd->cmd_state = SF_STATE_IDLE; } else if (rval == FCAL_BAD_ABORT) { cmd->cmd_timeout = sf_watchdog_time + 20; my_rval = FALSE; } else { SF_DEBUG(1, (sf, CE_NOTE, "Command Abort failed\n")); } } else { mutex_exit(&cmd->cmd_abort_mutex); } } } else { SF_DEBUG(2, (sf, CE_NOTE, "sf_abort target\n")); mutex_enter(&sf->sf_mutex); lip_cnt = sf->sf_lip_cnt; mutex_enter(&target->sft_mutex); if (target->sft_state & (SF_TARGET_BUSY | SF_TARGET_OFFLINE)) { mutex_exit(&target->sft_mutex); return (rval); } old_target_state = target->sft_state; target->sft_state |= SF_TARGET_BUSY; mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); if ((pkt = sf_scsi_init_pkt(ap, NULL, NULL, 0, 0, 0, 0, NULL, 0)) != NULL) { cmd = PKT2CMD(pkt); cmd->cmd_block->fcp_cntl.cntl_abort_tsk = 1; cmd->cmd_fp_pkt->fcal_pkt_comp = NULL; cmd->cmd_pkt->pkt_flags |= FLAG_NOINTR; /* prepare the packet for transport */ if (sf_prepare_pkt(sf, cmd, target) == TRAN_ACCEPT) { cmd->cmd_state = SF_STATE_ISSUED; /* * call transport to send a pkt polled * * if that fails call the transport to abort it */ if (soc_transport_poll(sf->sf_sochandle, cmd->cmd_fp_pkt, SF_ABORT_TIMEOUT, CQ_REQUEST_1) == FCAL_TRANSPORT_SUCCESS) { (void) ddi_dma_sync( cmd->cmd_cr_pool->rsp_dma_handle, (off_t) ((caddr_t)cmd->cmd_rsp_block - cmd->cmd_cr_pool->rsp_base), FCP_MAX_RSP_IU_SIZE, DDI_DMA_SYNC_FORKERNEL); if (((struct fcp_rsp_info *) (&cmd->cmd_rsp_block-> fcp_response_len + 1))-> rsp_code == FCP_NO_FAILURE) { /* abort cmds for this targ */ sf_abort_all(sf, target, TRUE, lip_cnt, TRUE); } else { hp = &cmd->cmd_fp_pkt-> fcal_socal_request. sr_fc_frame_hdr; tgt_id = sf_alpa_to_switch[ (uchar_t)hp->d_id]; sf->sf_stats.tstats[tgt_id]. task_mgmt_failures++; SF_DEBUG(1, (sf, CE_NOTE, "Target %d Abort Task " "Set failed\n", hp->d_id)); } } else { mutex_enter(&cmd->cmd_abort_mutex); if (cmd->cmd_state == SF_STATE_ISSUED) { cmd->cmd_state = SF_STATE_ABORTING; cmd->cmd_timeout = sf_watchdog_time + 20; mutex_exit(&cmd->cmd_abort_mutex); if ((t = soc_abort(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle-> fcal_portno, cmd->cmd_fp_pkt, 1)) != FCAL_ABORTED && (t != FCAL_ABORT_FAILED)) { sf_log(sf, CE_NOTE, "sf_abort failed, " "initiating LIP\n"); sf_force_lip(sf); deferred_destroy = 1; } } else { mutex_exit(&cmd->cmd_abort_mutex); } } } if (!deferred_destroy) { cmd->cmd_fp_pkt->fcal_pkt_comp = sf_cmd_callback; cmd->cmd_block->fcp_cntl.cntl_abort_tsk = 0; sf_scsi_destroy_pkt(ap, pkt); my_rval = TRUE; } } mutex_enter(&sf->sf_mutex); if (lip_cnt == sf->sf_lip_cnt) { mutex_enter(&target->sft_mutex); target->sft_state = old_target_state; mutex_exit(&target->sft_mutex); } mutex_exit(&sf->sf_mutex); } return (my_rval); } /* * called by the transport and internally to reset a target */ static int sf_reset(struct scsi_address *ap, int level) { struct scsi_pkt *pkt; struct fcal_packet *fpkt; struct sf *sf = ADDR2SF(ap); struct sf_target *target = ADDR2TARGET(ap), *ntarget; struct sf_pkt *cmd; int rval = FALSE, t; int lip_cnt; int tgt_id, ret; fc_frame_header_t *hp; int deferred_destroy; /* We don't support RESET_LUN yet. */ if (level == RESET_TARGET) { struct sf_reset_list *p; if ((p = kmem_alloc(sizeof (struct sf_reset_list), KM_NOSLEEP)) == NULL) return (rval); SF_DEBUG(2, (sf, CE_NOTE, "sf_reset target\n")); mutex_enter(&sf->sf_mutex); /* All target resets go to LUN 0 */ if (target->sft_lun.l) { target = sf_lookup_target(sf, target->sft_port_wwn, 0); } mutex_enter(&target->sft_mutex); if (target->sft_state & (SF_TARGET_BUSY | SF_TARGET_OFFLINE)) { mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); kmem_free(p, sizeof (struct sf_reset_list)); return (rval); } lip_cnt = sf->sf_lip_cnt; target->sft_state |= SF_TARGET_BUSY; for (ntarget = target->sft_next_lun; ntarget; ntarget = ntarget->sft_next_lun) { mutex_enter(&ntarget->sft_mutex); /* * XXXX If we supported RESET_LUN we should check here * to see if any LUN were being reset and somehow fail * that operation. */ ntarget->sft_state |= SF_TARGET_BUSY; mutex_exit(&ntarget->sft_mutex); } mutex_exit(&target->sft_mutex); mutex_exit(&sf->sf_mutex); deferred_destroy = 0; if ((pkt = sf_scsi_init_pkt(ap, NULL, NULL, 0, 0, 0, 0, NULL, 0)) != NULL) { cmd = PKT2CMD(pkt); cmd->cmd_block->fcp_cntl.cntl_reset = 1; cmd->cmd_fp_pkt->fcal_pkt_comp = NULL; cmd->cmd_pkt->pkt_flags |= FLAG_NOINTR; /* prepare the packet for transport */ if (sf_prepare_pkt(sf, cmd, target) == TRAN_ACCEPT) { /* call transport to send a pkt polled */ cmd->cmd_state = SF_STATE_ISSUED; if ((ret = soc_transport_poll(sf->sf_sochandle, cmd->cmd_fp_pkt, SF_ABORT_TIMEOUT, CQ_REQUEST_1)) == FCAL_TRANSPORT_SUCCESS) { (void) ddi_dma_sync(cmd->cmd_cr_pool-> rsp_dma_handle, (caddr_t)cmd-> cmd_rsp_block - cmd->cmd_cr_pool-> rsp_base, FCP_MAX_RSP_IU_SIZE, DDI_DMA_SYNC_FORKERNEL); fpkt = cmd->cmd_fp_pkt; if ((fpkt->fcal_pkt_status == FCAL_STATUS_OK) && (((struct fcp_rsp_info *) (&cmd->cmd_rsp_block-> fcp_response_len + 1))-> rsp_code == FCP_NO_FAILURE)) { sf_log(sf, CE_NOTE, "!sf%d: Target 0x%x Reset " "successful\n", ddi_get_instance(\ sf->sf_dip), sf_alpa_to_switch[ target->sft_al_pa]); rval = TRUE; } else { hp = &cmd->cmd_fp_pkt-> fcal_socal_request. sr_fc_frame_hdr; tgt_id = sf_alpa_to_switch[ (uchar_t)hp->d_id]; sf->sf_stats.tstats[tgt_id]. task_mgmt_failures++; sf_log(sf, CE_NOTE, "!sf%d: Target 0x%x " "Reset failed." "Status code 0x%x " "Resp code 0x%x\n", ddi_get_instance(\ sf->sf_dip), tgt_id, fpkt->fcal_pkt_status, ((struct fcp_rsp_info *) (&cmd->cmd_rsp_block-> fcp_response_len + 1))-> rsp_code); } } else { sf_log(sf, CE_NOTE, "!sf%d: Target " "0x%x Reset Failed. Ret=%x\n", ddi_get_instance(sf->sf_dip), sf_alpa_to_switch[ target->sft_al_pa], ret); mutex_enter(&cmd->cmd_abort_mutex); if (cmd->cmd_state == SF_STATE_ISSUED) { /* call the transport to abort a cmd */ cmd->cmd_timeout = sf_watchdog_time + 20; cmd->cmd_state = SF_STATE_ABORTING; mutex_exit(&cmd->cmd_abort_mutex); if (((t = soc_abort(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, cmd->cmd_fp_pkt, 1)) != FCAL_ABORTED) && (t != FCAL_ABORT_FAILED)) { sf_log(sf, CE_NOTE, "!sf%d: Target 0x%x Reset " "failed. Abort Failed, " "forcing LIP\n", ddi_get_instance( sf->sf_dip), sf_alpa_to_switch[ target->sft_al_pa]); sf_force_lip(sf); rval = TRUE; deferred_destroy = 1; } } else { mutex_exit (&cmd->cmd_abort_mutex); } } } /* * Defer releasing the packet if we abort returned with * a BAD_ABORT or timed out, because there is a * possibility that the ucode might return it. * We wait for at least 20s and let it be released * by the sf_watch thread */ if (!deferred_destroy) { cmd->cmd_block->fcp_cntl.cntl_reset = 0; cmd->cmd_fp_pkt->fcal_pkt_comp = sf_cmd_callback; cmd->cmd_state = SF_STATE_IDLE; /* for cache */ sf_scsi_destroy_pkt(ap, pkt); } } else { cmn_err(CE_WARN, "!sf%d: Target 0x%x Reset Failed. " "Resource allocation error.\n", ddi_get_instance(sf->sf_dip), sf_alpa_to_switch[target->sft_al_pa]); } mutex_enter(&sf->sf_mutex); if ((rval == TRUE) && (lip_cnt == sf->sf_lip_cnt)) { p->target = target; p->lip_cnt = lip_cnt; p->timeout = ddi_get_lbolt() + drv_usectohz(SF_TARGET_RESET_DELAY); p->next = sf->sf_reset_list; sf->sf_reset_list = p; mutex_exit(&sf->sf_mutex); mutex_enter(&sf_global_mutex); if (sf_reset_timeout_id == 0) { sf_reset_timeout_id = timeout( sf_check_reset_delay, NULL, drv_usectohz(SF_TARGET_RESET_DELAY)); } mutex_exit(&sf_global_mutex); } else { if (lip_cnt == sf->sf_lip_cnt) { mutex_enter(&target->sft_mutex); target->sft_state &= ~SF_TARGET_BUSY; for (ntarget = target->sft_next_lun; ntarget; ntarget = ntarget->sft_next_lun) { mutex_enter(&ntarget->sft_mutex); ntarget->sft_state &= ~SF_TARGET_BUSY; mutex_exit(&ntarget->sft_mutex); } mutex_exit(&target->sft_mutex); } mutex_exit(&sf->sf_mutex); kmem_free(p, sizeof (struct sf_reset_list)); } } else { mutex_enter(&sf->sf_mutex); if ((sf->sf_state == SF_STATE_OFFLINE) && (sf_watchdog_time < sf->sf_timer)) { /* * We are currently in a lip, so let this one * finish before forcing another one. */ mutex_exit(&sf->sf_mutex); return (TRUE); } mutex_exit(&sf->sf_mutex); sf_log(sf, CE_NOTE, "!sf:Target driver initiated lip\n"); sf_force_lip(sf); rval = TRUE; } return (rval); } /* * abort all commands for a target * * if try_abort is set then send an abort * if abort is set then this is abort, else this is a reset */ static void sf_abort_all(struct sf *sf, struct sf_target *target, int abort, int lip_cnt, int try_abort) { struct sf_target *ntarget; struct sf_pkt *cmd, *head = NULL, *tail = NULL, *pcmd = NULL, *tcmd; struct fcal_packet *fpkt; struct scsi_pkt *pkt; int rval = FCAL_ABORTED; /* * First pull all commands for all LUNs on this target out of the * overflow list. We can tell it's the same target by comparing * the node WWN. */ mutex_enter(&sf->sf_mutex); if (lip_cnt == sf->sf_lip_cnt) { mutex_enter(&sf->sf_cmd_mutex); cmd = sf->sf_pkt_head; while (cmd != NULL) { ntarget = ADDR2TARGET(&cmd->cmd_pkt-> pkt_address); if (ntarget == target) { if (pcmd != NULL) pcmd->cmd_next = cmd->cmd_next; else sf->sf_pkt_head = cmd->cmd_next; if (sf->sf_pkt_tail == cmd) { sf->sf_pkt_tail = pcmd; if (pcmd != NULL) pcmd->cmd_next = NULL; } tcmd = cmd->cmd_next; if (head == NULL) { head = cmd; tail = cmd; } else { tail->cmd_next = cmd; tail = cmd; } cmd->cmd_next = NULL; cmd = tcmd; } else { pcmd = cmd; cmd = cmd->cmd_next; } } mutex_exit(&sf->sf_cmd_mutex); } mutex_exit(&sf->sf_mutex); /* * Now complete all the commands on our list. In the process, * the completion routine may take the commands off the target * lists. */ cmd = head; while (cmd != NULL) { pkt = cmd->cmd_pkt; if (abort) { pkt->pkt_reason = CMD_ABORTED; pkt->pkt_statistics |= STAT_ABORTED; } else { pkt->pkt_reason = CMD_RESET; pkt->pkt_statistics |= STAT_DEV_RESET; } cmd->cmd_flags &= ~CFLAG_IN_QUEUE; cmd->cmd_state = SF_STATE_IDLE; cmd = cmd->cmd_next; /* * call the packet completion routine only for * non-polled commands. Ignore the polled commands as * they timeout and will be handled differently */ if ((pkt->pkt_comp) && !(pkt->pkt_flags & FLAG_NOINTR)) (*pkt->pkt_comp)(pkt); } /* * Finally get all outstanding commands for each LUN, and abort them if * they've been issued, and call the completion routine. * For the case where sf_offline_target is called from sf_watch * due to a Offline Timeout, it is quite possible that the soc+ * ucode is hosed and therefore cannot return the commands. * Clear up all the issued commands as well. * Try_abort will be false only if sf_abort_all is coming from * sf_target_offline. */ if (try_abort || sf->sf_state == SF_STATE_OFFLINE) { mutex_enter(&target->sft_pkt_mutex); cmd = tcmd = target->sft_pkt_head; while (cmd != (struct sf_pkt *)&target->sft_pkt_head) { fpkt = cmd->cmd_fp_pkt; pkt = cmd->cmd_pkt; mutex_enter(&cmd->cmd_abort_mutex); if ((cmd->cmd_state == SF_STATE_ISSUED) && (fpkt->fcal_cmd_state & FCAL_CMD_IN_TRANSPORT) && ((fpkt->fcal_cmd_state & FCAL_CMD_COMPLETE) == 0) && !(pkt->pkt_flags & FLAG_NOINTR)) { cmd->cmd_state = SF_STATE_ABORTING; cmd->cmd_timeout = sf_watchdog_time + cmd->cmd_pkt->pkt_time + 20; mutex_exit(&cmd->cmd_abort_mutex); mutex_exit(&target->sft_pkt_mutex); if (try_abort) { /* call the transport to abort a pkt */ rval = soc_abort(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, fpkt, 1); } if ((rval == FCAL_ABORTED) || (rval == FCAL_ABORT_FAILED)) { if (abort) { pkt->pkt_reason = CMD_ABORTED; pkt->pkt_statistics |= STAT_ABORTED; } else { pkt->pkt_reason = CMD_RESET; pkt->pkt_statistics |= STAT_DEV_RESET; } cmd->cmd_state = SF_STATE_IDLE; if (pkt->pkt_comp) (*pkt->pkt_comp)(pkt); } mutex_enter(&sf->sf_mutex); if (lip_cnt != sf->sf_lip_cnt) { mutex_exit(&sf->sf_mutex); return; } mutex_exit(&sf->sf_mutex); mutex_enter(&target->sft_pkt_mutex); cmd = target->sft_pkt_head; } else { mutex_exit(&cmd->cmd_abort_mutex); cmd = cmd->cmd_forw; } } mutex_exit(&target->sft_pkt_mutex); } } /* * called by the transport to start a packet */ static int sf_start(struct scsi_address *ap, struct scsi_pkt *pkt) { struct sf *sf = ADDR2SF(ap); struct sf_target *target = ADDR2TARGET(ap); struct sf_pkt *cmd = PKT2CMD(pkt); int rval; SF_DEBUG(6, (sf, CE_NOTE, "sf_start\n")); if (cmd->cmd_state == SF_STATE_ISSUED) { cmn_err(CE_PANIC, "sf: issuing packet twice 0x%p\n", (void *)cmd); } /* prepare the packet for transport */ if ((rval = sf_prepare_pkt(sf, cmd, target)) != TRAN_ACCEPT) { return (rval); } if (target->sft_state & (SF_TARGET_BUSY|SF_TARGET_OFFLINE)) { if (target->sft_state & SF_TARGET_OFFLINE) { return (TRAN_FATAL_ERROR); } if (pkt->pkt_flags & FLAG_NOINTR) { return (TRAN_BUSY); } mutex_enter(&sf->sf_cmd_mutex); sf->sf_use_lock = TRUE; goto enque; } /* if no interrupts then do polled I/O */ if (pkt->pkt_flags & FLAG_NOINTR) { return (sf_dopoll(sf, cmd)); } /* regular interrupt-driven I/O */ if (!sf->sf_use_lock) { /* locking no needed */ cmd->cmd_timeout = cmd->cmd_pkt->pkt_time ? sf_watchdog_time + cmd->cmd_pkt->pkt_time : 0; cmd->cmd_state = SF_STATE_ISSUED; /* call the transport to send a pkt */ if (soc_transport(sf->sf_sochandle, cmd->cmd_fp_pkt, FCAL_NOSLEEP, CQ_REQUEST_1) != FCAL_TRANSPORT_SUCCESS) { cmd->cmd_state = SF_STATE_IDLE; return (TRAN_BADPKT); } return (TRAN_ACCEPT); } /* regular I/O using locking */ mutex_enter(&sf->sf_cmd_mutex); if ((sf->sf_ncmds >= sf->sf_throttle) || (sf->sf_pkt_head != NULL)) { enque: /* * either we're throttling back or there are already commands * on the queue, so enqueue this one for later */ cmd->cmd_flags |= CFLAG_IN_QUEUE; if (sf->sf_pkt_head != NULL) { /* add to the queue */ sf->sf_pkt_tail->cmd_next = cmd; cmd->cmd_next = NULL; sf->sf_pkt_tail = cmd; } else { /* this is the first entry in the queue */ sf->sf_pkt_head = sf->sf_pkt_tail = cmd; cmd->cmd_next = NULL; } mutex_exit(&sf->sf_cmd_mutex); return (TRAN_ACCEPT); } /* * start this packet now */ /* still have cmd mutex */ return (sf_start_internal(sf, cmd)); } /* * internal routine to start a packet from the queue now * * enter with cmd mutex held and leave with it released */ static int sf_start_internal(struct sf *sf, struct sf_pkt *cmd) { /* we have the cmd mutex */ sf->sf_ncmds++; mutex_exit(&sf->sf_cmd_mutex); ASSERT(cmd->cmd_state != SF_STATE_ISSUED); SF_DEBUG(6, (sf, CE_NOTE, "sf_start_internal\n")); cmd->cmd_timeout = cmd->cmd_pkt->pkt_time ? sf_watchdog_time + cmd->cmd_pkt->pkt_time : 0; cmd->cmd_state = SF_STATE_ISSUED; /* call transport to send the pkt */ if (soc_transport(sf->sf_sochandle, cmd->cmd_fp_pkt, FCAL_NOSLEEP, CQ_REQUEST_1) != FCAL_TRANSPORT_SUCCESS) { cmd->cmd_state = SF_STATE_IDLE; mutex_enter(&sf->sf_cmd_mutex); sf->sf_ncmds--; mutex_exit(&sf->sf_cmd_mutex); return (TRAN_BADPKT); } return (TRAN_ACCEPT); } /* * prepare a packet for transport */ static int sf_prepare_pkt(struct sf *sf, struct sf_pkt *cmd, struct sf_target *target) { struct fcp_cmd *fcmd = cmd->cmd_block; /* XXXX Need to set the LUN ? */ bcopy((caddr_t)&target->sft_lun.b, (caddr_t)&fcmd->fcp_ent_addr, FCP_LUN_SIZE); cmd->cmd_pkt->pkt_reason = CMD_CMPLT; cmd->cmd_pkt->pkt_state = 0; cmd->cmd_pkt->pkt_statistics = 0; if ((cmd->cmd_pkt->pkt_comp == NULL) && ((cmd->cmd_pkt->pkt_flags & FLAG_NOINTR) == 0)) { return (TRAN_BADPKT); } /* invalidate imp field(s) of rsp block */ cmd->cmd_rsp_block->fcp_u.i_fcp_status = SF_BAD_DMA_MAGIC; /* set up amt of I/O to do */ if (cmd->cmd_flags & CFLAG_DMAVALID) { cmd->cmd_pkt->pkt_resid = cmd->cmd_dmacount; if (cmd->cmd_flags & CFLAG_CMDIOPB) { (void) ddi_dma_sync(cmd->cmd_dmahandle, 0, 0, DDI_DMA_SYNC_FORDEV); } } else { cmd->cmd_pkt->pkt_resid = 0; } /* set up the Tagged Queuing type */ if (cmd->cmd_pkt->pkt_flags & FLAG_HTAG) { fcmd->fcp_cntl.cntl_qtype = FCP_QTYPE_HEAD_OF_Q; } else if (cmd->cmd_pkt->pkt_flags & FLAG_OTAG) { fcmd->fcp_cntl.cntl_qtype = FCP_QTYPE_ORDERED; } /* * Sync the cmd segment */ (void) ddi_dma_sync(cmd->cmd_cr_pool->cmd_dma_handle, (caddr_t)fcmd - cmd->cmd_cr_pool->cmd_base, sizeof (struct fcp_cmd), DDI_DMA_SYNC_FORDEV); sf_fill_ids(sf, cmd, target); return (TRAN_ACCEPT); } /* * fill in packet hdr source and destination IDs and hdr byte count */ static void sf_fill_ids(struct sf *sf, struct sf_pkt *cmd, struct sf_target *target) { struct fcal_packet *fpkt = cmd->cmd_fp_pkt; fc_frame_header_t *hp; hp = &fpkt->fcal_socal_request.sr_fc_frame_hdr; hp->d_id = target->sft_al_pa; hp->s_id = sf->sf_al_pa; fpkt->fcal_socal_request.sr_soc_hdr.sh_byte_cnt = cmd->cmd_dmacookie.dmac_size; } /* * do polled I/O using transport */ static int sf_dopoll(struct sf *sf, struct sf_pkt *cmd) { int timeout; int rval; mutex_enter(&sf->sf_cmd_mutex); sf->sf_ncmds++; mutex_exit(&sf->sf_cmd_mutex); timeout = cmd->cmd_pkt->pkt_time ? cmd->cmd_pkt->pkt_time : SF_POLL_TIMEOUT; cmd->cmd_timeout = 0; cmd->cmd_fp_pkt->fcal_pkt_comp = NULL; cmd->cmd_state = SF_STATE_ISSUED; /* call transport to send a pkt polled */ rval = soc_transport_poll(sf->sf_sochandle, cmd->cmd_fp_pkt, timeout*1000000, CQ_REQUEST_1); mutex_enter(&cmd->cmd_abort_mutex); cmd->cmd_fp_pkt->fcal_pkt_comp = sf_cmd_callback; if (rval != FCAL_TRANSPORT_SUCCESS) { if (rval == FCAL_TRANSPORT_TIMEOUT) { cmd->cmd_state = SF_STATE_ABORTING; mutex_exit(&cmd->cmd_abort_mutex); (void) sf_target_timeout(sf, cmd); } else { mutex_exit(&cmd->cmd_abort_mutex); } cmd->cmd_state = SF_STATE_IDLE; cmd->cmd_fp_pkt->fcal_pkt_comp = sf_cmd_callback; mutex_enter(&sf->sf_cmd_mutex); sf->sf_ncmds--; mutex_exit(&sf->sf_cmd_mutex); return (TRAN_BADPKT); } mutex_exit(&cmd->cmd_abort_mutex); cmd->cmd_fp_pkt->fcal_pkt_comp = sf_cmd_callback; sf_cmd_callback(cmd->cmd_fp_pkt); return (TRAN_ACCEPT); } /* a shortcut for defining debug messages below */ #ifdef DEBUG #define SF_DMSG1(s) msg1 = s #else #define SF_DMSG1(s) /* do nothing */ #endif /* * the pkt_comp callback for command packets */ static void sf_cmd_callback(struct fcal_packet *fpkt) { struct sf_pkt *cmd = (struct sf_pkt *)fpkt->fcal_pkt_private; struct scsi_pkt *pkt = cmd->cmd_pkt; struct sf *sf = ADDR2SF(&pkt->pkt_address); struct sf_target *target = ADDR2TARGET(&pkt->pkt_address); struct fcp_rsp *rsp; char *msg1 = NULL; char *msg2 = NULL; short ncmds; int tgt_id; int good_scsi_status = TRUE; if (cmd->cmd_state == SF_STATE_IDLE) { cmn_err(CE_PANIC, "sf: completing idle packet 0x%p\n", (void *)cmd); } mutex_enter(&cmd->cmd_abort_mutex); if (cmd->cmd_state == SF_STATE_ABORTING) { /* cmd already being aborted -- nothing to do */ mutex_exit(&cmd->cmd_abort_mutex); return; } cmd->cmd_state = SF_STATE_IDLE; mutex_exit(&cmd->cmd_abort_mutex); if (fpkt->fcal_pkt_status == FCAL_STATUS_OK) { (void) ddi_dma_sync(cmd->cmd_cr_pool->rsp_dma_handle, (caddr_t)cmd->cmd_rsp_block - cmd->cmd_cr_pool->rsp_base, FCP_MAX_RSP_IU_SIZE, DDI_DMA_SYNC_FORKERNEL); rsp = (struct fcp_rsp *)cmd->cmd_rsp_block; if (rsp->fcp_u.i_fcp_status == SF_BAD_DMA_MAGIC) { if (sf_core && (sf_core & SF_CORE_BAD_DMA)) { sf_token = (int *)(uintptr_t) fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); } pkt->pkt_reason = CMD_INCOMPLETE; pkt->pkt_state = STATE_GOT_BUS; pkt->pkt_statistics |= STAT_ABORTED; } else { pkt->pkt_state = STATE_GOT_BUS | STATE_GOT_TARGET | STATE_SENT_CMD | STATE_GOT_STATUS; pkt->pkt_resid = 0; if (cmd->cmd_flags & CFLAG_DMAVALID) { pkt->pkt_state |= STATE_XFERRED_DATA; } if ((pkt->pkt_scbp != NULL) && ((*(pkt->pkt_scbp) = rsp->fcp_u.fcp_status.scsi_status) != STATUS_GOOD)) { good_scsi_status = FALSE; /* * The next two checks make sure that if there * is no sense data or a valid response and * the command came back with check condition, * the command should be retried */ if (!rsp->fcp_u.fcp_status.rsp_len_set && !rsp->fcp_u.fcp_status.sense_len_set) { pkt->pkt_state &= ~STATE_XFERRED_DATA; pkt->pkt_resid = cmd->cmd_dmacount; } } if ((cmd->cmd_flags & CFLAG_CMDIOPB) && (pkt->pkt_state & STATE_XFERRED_DATA)) { (void) ddi_dma_sync(cmd->cmd_dmahandle, 0, (uint_t)0, DDI_DMA_SYNC_FORCPU); } /* * Update the transfer resid, if appropriate */ if (rsp->fcp_u.fcp_status.resid_over || rsp->fcp_u.fcp_status.resid_under) pkt->pkt_resid = rsp->fcp_resid; /* * Check to see if the SCSI command failed. * */ /* * First see if we got a FCP protocol error. */ if (rsp->fcp_u.fcp_status.rsp_len_set) { struct fcp_rsp_info *bep; bep = (struct fcp_rsp_info *) (&rsp->fcp_response_len + 1); if (bep->rsp_code != FCP_NO_FAILURE) { pkt->pkt_reason = CMD_TRAN_ERR; tgt_id = pkt->pkt_address.a_target; switch (bep->rsp_code) { case FCP_CMND_INVALID: SF_DMSG1("FCP_RSP FCP_CMND " "fields invalid"); break; case FCP_TASK_MGMT_NOT_SUPPTD: SF_DMSG1("FCP_RSP Task" "Management Function" "Not Supported"); break; case FCP_TASK_MGMT_FAILED: SF_DMSG1("FCP_RSP Task " "Management Function" "Failed"); sf->sf_stats.tstats[tgt_id]. task_mgmt_failures++; break; case FCP_DATA_RO_MISMATCH: SF_DMSG1("FCP_RSP FCP_DATA RO " "mismatch with " "FCP_XFER_RDY DATA_RO"); sf->sf_stats.tstats[tgt_id]. data_ro_mismatches++; break; case FCP_DL_LEN_MISMATCH: SF_DMSG1("FCP_RSP FCP_DATA " "length " "different than BURST_LEN"); sf->sf_stats.tstats[tgt_id]. dl_len_mismatches++; break; default: SF_DMSG1("FCP_RSP invalid " "RSP_CODE"); break; } } } /* * See if we got a SCSI error with sense data */ if (rsp->fcp_u.fcp_status.sense_len_set) { uchar_t rqlen = min(rsp->fcp_sense_len, sizeof (struct scsi_extended_sense)); caddr_t sense = (caddr_t)rsp + sizeof (struct fcp_rsp) + rsp->fcp_response_len; struct scsi_arq_status *arq; struct scsi_extended_sense *sensep = (struct scsi_extended_sense *)sense; if (rsp->fcp_u.fcp_status.scsi_status != STATUS_GOOD) { if (rsp->fcp_u.fcp_status.scsi_status == STATUS_CHECK) { if (sensep->es_key == KEY_RECOVERABLE_ERROR) good_scsi_status = 1; if (sensep->es_key == KEY_UNIT_ATTENTION && sensep->es_add_code == 0x3f && sensep->es_qual_code == 0x0e) { /* REPORT_LUNS_HAS_CHANGED */ sf_log(sf, CE_NOTE, "!REPORT_LUNS_HAS_CHANGED\n"); sf_force_lip(sf); } } } if ((pkt->pkt_scbp != NULL) && (cmd->cmd_scblen >= sizeof (struct scsi_arq_status))) { pkt->pkt_state |= STATE_ARQ_DONE; arq = (struct scsi_arq_status *)pkt->pkt_scbp; /* * copy out sense information */ bcopy(sense, (caddr_t)&arq->sts_sensedata, rqlen); arq->sts_rqpkt_resid = sizeof (struct scsi_extended_sense) - rqlen; *((uchar_t *)&arq->sts_rqpkt_status) = STATUS_GOOD; arq->sts_rqpkt_reason = 0; arq->sts_rqpkt_statistics = 0; arq->sts_rqpkt_state = STATE_GOT_BUS | STATE_GOT_TARGET | STATE_SENT_CMD | STATE_GOT_STATUS | STATE_ARQ_DONE | STATE_XFERRED_DATA; } target->sft_alive = TRUE; } /* * The firmware returns the number of bytes actually * xfered into/out of host. Compare this with what * we asked and if it is different, we lost frames ? */ if ((pkt->pkt_reason == 0) && (pkt->pkt_resid == 0) && (good_scsi_status) && (pkt->pkt_state & STATE_XFERRED_DATA) && (!(cmd->cmd_flags & CFLAG_CMDIOPB)) && (target->sft_device_type != DTYPE_ESI)) { int byte_cnt = fpkt->fcal_socal_request. sr_soc_hdr.sh_byte_cnt; if (cmd->cmd_flags & CFLAG_DMASEND) { if (byte_cnt != 0) { sf_log(sf, CE_NOTE, "!sf_cmd_callback: Lost Frame: " "(write) received 0x%x expected" " 0x%x target 0x%x\n", byte_cnt, cmd->cmd_dmacount, sf_alpa_to_switch[ target->sft_al_pa]); pkt->pkt_reason = CMD_INCOMPLETE; pkt->pkt_statistics |= STAT_ABORTED; } } else if (byte_cnt < cmd->cmd_dmacount) { sf_log(sf, CE_NOTE, "!sf_cmd_callback: " "Lost Frame: (read) " "received 0x%x expected 0x%x " "target 0x%x\n", byte_cnt, cmd->cmd_dmacount, sf_alpa_to_switch[ target->sft_al_pa]); pkt->pkt_reason = CMD_INCOMPLETE; pkt->pkt_statistics |= STAT_ABORTED; } } } } else { /* pkt status was not ok */ switch (fpkt->fcal_pkt_status) { case FCAL_STATUS_ERR_OFFLINE: SF_DMSG1("Fibre Channel Offline"); mutex_enter(&target->sft_mutex); if (!(target->sft_state & SF_TARGET_OFFLINE)) { target->sft_state |= (SF_TARGET_BUSY | SF_TARGET_MARK); } mutex_exit(&target->sft_mutex); (void) ndi_event_retrieve_cookie(sf->sf_event_hdl, target->sft_dip, FCAL_REMOVE_EVENT, &sf_remove_eid, NDI_EVENT_NOPASS); (void) ndi_event_run_callbacks(sf->sf_event_hdl, target->sft_dip, sf_remove_eid, NULL); pkt->pkt_reason = CMD_TRAN_ERR; pkt->pkt_statistics |= STAT_BUS_RESET; break; case FCAL_STATUS_MAX_XCHG_EXCEEDED: sf_throttle(sf); sf->sf_use_lock = TRUE; pkt->pkt_reason = CMD_TRAN_ERR; pkt->pkt_state = STATE_GOT_BUS; pkt->pkt_statistics |= STAT_ABORTED; break; case FCAL_STATUS_TIMEOUT: SF_DMSG1("Fibre Channel Timeout"); pkt->pkt_reason = CMD_TIMEOUT; break; case FCAL_STATUS_ERR_OVERRUN: SF_DMSG1("CMD_DATA_OVR"); pkt->pkt_reason = CMD_DATA_OVR; break; case FCAL_STATUS_UNKNOWN_CQ_TYPE: SF_DMSG1("Unknown CQ type"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_BAD_SEG_CNT: SF_DMSG1("Bad SEG CNT"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_BAD_XID: SF_DMSG1("Fibre Channel Invalid X_ID"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_XCHG_BUSY: SF_DMSG1("Fibre Channel Exchange Busy"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_INSUFFICIENT_CQES: SF_DMSG1("Insufficient CQEs"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_ALLOC_FAIL: SF_DMSG1("ALLOC FAIL"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_BAD_SID: SF_DMSG1("Fibre Channel Invalid S_ID"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_INCOMPLETE_DMA_ERR: if (sf_core && (sf_core & SF_CORE_INCOMPLETE_DMA)) { sf_token = (int *)(uintptr_t) fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } msg2 = "INCOMPLETE DMA XFER due to bad SOC+ card, replace HBA"; pkt->pkt_reason = CMD_INCOMPLETE; pkt->pkt_state = STATE_GOT_BUS; pkt->pkt_statistics |= STAT_ABORTED; break; case FCAL_STATUS_CRC_ERR: msg2 = "Fibre Channel CRC Error on frames"; pkt->pkt_reason = CMD_INCOMPLETE; pkt->pkt_state = STATE_GOT_BUS; pkt->pkt_statistics |= STAT_ABORTED; break; case FCAL_STATUS_NO_SEQ_INIT: SF_DMSG1("Fibre Channel Seq Init Error"); pkt->pkt_reason = CMD_TRAN_ERR; break; case FCAL_STATUS_OPEN_FAIL: pkt->pkt_reason = CMD_TRAN_ERR; SF_DMSG1("Fibre Channel Open Failure"); if ((target->sft_state & (SF_TARGET_BUSY | SF_TARGET_MARK | SF_TARGET_OFFLINE)) == 0) { sf_log(sf, CE_NOTE, "!Open failure to target 0x%x " "forcing LIP\n", sf_alpa_to_switch[target->sft_al_pa]); sf_force_lip(sf); } break; case FCAL_STATUS_ONLINE_TIMEOUT: SF_DMSG1("Fibre Channel Online Timeout"); pkt->pkt_reason = CMD_TRAN_ERR; break; default: SF_DMSG1("Unknown FC Status"); pkt->pkt_reason = CMD_TRAN_ERR; break; } } #ifdef DEBUG /* * msg1 will be non-NULL if we've detected some sort of error */ if (msg1 != NULL && sfdebug >= 4) { sf_log(sf, CE_WARN, "!Transport error on cmd=0x%p target=0x%x: %s\n", (void *)fpkt, pkt->pkt_address.a_target, msg1); } #endif if (msg2 != NULL) { sf_log(sf, CE_WARN, "!Transport error on target=0x%x: %s\n", pkt->pkt_address.a_target, msg2); } ncmds = fpkt->fcal_ncmds; ASSERT(ncmds >= 0); if (ncmds >= (sf->sf_throttle - SF_HI_CMD_DELTA)) { #ifdef DEBUG if (!sf->sf_use_lock) { SF_DEBUG(4, (sf, CE_NOTE, "use lock flag on\n")); } #endif sf->sf_use_lock = TRUE; } mutex_enter(&sf->sf_cmd_mutex); sf->sf_ncmds = ncmds; sf_throttle_start(sf); mutex_exit(&sf->sf_cmd_mutex); if (!msg1 && !msg2) SF_DEBUG(6, (sf, CE_NOTE, "Completing pkt 0x%p\n", (void *)pkt)); if (pkt->pkt_comp != NULL) { (*pkt->pkt_comp)(pkt); } } #undef SF_DMSG1 /* * start throttling for this instance */ static void sf_throttle_start(struct sf *sf) { struct sf_pkt *cmd, *prev_cmd = NULL; struct scsi_pkt *pkt; struct sf_target *target; ASSERT(mutex_owned(&sf->sf_cmd_mutex)); cmd = sf->sf_pkt_head; while ((cmd != NULL) && (sf->sf_state == SF_STATE_ONLINE) && (sf->sf_ncmds < sf->sf_throttle)) { pkt = CMD2PKT(cmd); target = ADDR2TARGET(&pkt->pkt_address); if (target->sft_state & SF_TARGET_BUSY) { /* this command is busy -- go to next */ ASSERT(cmd->cmd_state != SF_STATE_ISSUED); prev_cmd = cmd; cmd = cmd->cmd_next; continue; } ASSERT(cmd->cmd_state != SF_STATE_ISSUED); /* this cmd not busy and not issued */ /* remove this packet from the queue */ if (sf->sf_pkt_head == cmd) { /* this was the first packet */ sf->sf_pkt_head = cmd->cmd_next; } else if (sf->sf_pkt_tail == cmd) { /* this was the last packet */ sf->sf_pkt_tail = prev_cmd; if (prev_cmd != NULL) { prev_cmd->cmd_next = NULL; } } else { /* some packet in the middle of the queue */ ASSERT(prev_cmd != NULL); prev_cmd->cmd_next = cmd->cmd_next; } cmd->cmd_flags &= ~CFLAG_IN_QUEUE; if (target->sft_state & SF_TARGET_OFFLINE) { mutex_exit(&sf->sf_cmd_mutex); pkt->pkt_reason = CMD_TRAN_ERR; if (pkt->pkt_comp != NULL) { (*pkt->pkt_comp)(cmd->cmd_pkt); } } else { sf_fill_ids(sf, cmd, target); if (sf_start_internal(sf, cmd) != TRAN_ACCEPT) { pkt->pkt_reason = CMD_TRAN_ERR; if (pkt->pkt_comp != NULL) { (*pkt->pkt_comp)(cmd->cmd_pkt); } } } mutex_enter(&sf->sf_cmd_mutex); cmd = sf->sf_pkt_head; prev_cmd = NULL; } } /* * called when the max exchange value is exceeded to throttle back commands */ static void sf_throttle(struct sf *sf) { int cmdmax = sf->sf_sochandle->fcal_cmdmax; mutex_enter(&sf->sf_cmd_mutex); sf->sf_flag = TRUE; if (sf->sf_ncmds > (cmdmax / 2)) { sf->sf_throttle = cmdmax / 2; } else { if (sf->sf_ncmds > SF_DECR_DELTA) { sf->sf_throttle = sf->sf_ncmds - SF_DECR_DELTA; } else { /* * This case is just a safeguard, should not really * happen(ncmds < SF_DECR_DELTA and MAX_EXCHG exceed */ sf->sf_throttle = SF_DECR_DELTA; } } mutex_exit(&sf->sf_cmd_mutex); sf = sf->sf_sibling; if (sf != NULL) { mutex_enter(&sf->sf_cmd_mutex); sf->sf_flag = TRUE; if (sf->sf_ncmds >= (cmdmax / 2)) { sf->sf_throttle = cmdmax / 2; } else { if (sf->sf_ncmds > SF_DECR_DELTA) { sf->sf_throttle = sf->sf_ncmds - SF_DECR_DELTA; } else { sf->sf_throttle = SF_DECR_DELTA; } } mutex_exit(&sf->sf_cmd_mutex); } } /* * sf watchdog routine, called for a timeout */ /*ARGSUSED*/ static void sf_watch(void *arg) { struct sf *sf; struct sf_els_hdr *privp; static int count = 0, pscan_count = 0; int cmdmax, i, mescount = 0; struct sf_target *target; sf_watchdog_time += sf_watchdog_timeout; count++; pscan_count++; mutex_enter(&sf_global_mutex); sf_watch_running = 1; for (sf = sf_head; sf != NULL; sf = sf->sf_next) { mutex_exit(&sf_global_mutex); /* disable throttling while we're suspended */ mutex_enter(&sf->sf_mutex); if (sf->sf_state & SF_STATE_SUSPENDED) { mutex_exit(&sf->sf_mutex); SF_DEBUG(1, (sf, CE_CONT, "sf_watch, sf%d:throttle disabled " "due to DDI_SUSPEND\n", ddi_get_instance(sf->sf_dip))); mutex_enter(&sf_global_mutex); continue; } mutex_exit(&sf->sf_mutex); cmdmax = sf->sf_sochandle->fcal_cmdmax; if (sf->sf_take_core) { (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); } mutex_enter(&sf->sf_cmd_mutex); if (!sf->sf_flag) { if (sf->sf_throttle < (cmdmax / 2)) { sf->sf_throttle = cmdmax / 2; } else if ((sf->sf_throttle += SF_INCR_DELTA) > cmdmax) { sf->sf_throttle = cmdmax; } } else { sf->sf_flag = FALSE; } sf->sf_ncmds_exp_avg = (sf->sf_ncmds + sf->sf_ncmds_exp_avg) >> 2; if ((sf->sf_ncmds <= (sf->sf_throttle - SF_LO_CMD_DELTA)) && (sf->sf_pkt_head == NULL)) { #ifdef DEBUG if (sf->sf_use_lock) { SF_DEBUG(4, (sf, CE_NOTE, "use lock flag off\n")); } #endif sf->sf_use_lock = FALSE; } if (sf->sf_state == SF_STATE_ONLINE && sf->sf_pkt_head && sf->sf_ncmds < sf->sf_throttle) { sf_throttle_start(sf); } mutex_exit(&sf->sf_cmd_mutex); if (pscan_count >= sf_pool_scan_cnt) { if (sf->sf_ncmds_exp_avg < (sf->sf_cr_pool_cnt << SF_LOG2_ELEMS_IN_POOL) - SF_FREE_CR_EPSILON) { sf_crpool_free(sf); } } mutex_enter(&sf->sf_mutex); privp = sf->sf_els_list; while (privp != NULL) { if (privp->timeout < sf_watchdog_time) { /* timeout this command */ privp = sf_els_timeout(sf, privp); } else if ((privp->timeout == SF_INVALID_TIMEOUT) && (privp->lip_cnt != sf->sf_lip_cnt)) { if (privp->prev != NULL) { privp->prev->next = privp->next; } if (sf->sf_els_list == privp) { sf->sf_els_list = privp->next; } if (privp->next != NULL) { privp->next->prev = privp->prev; } mutex_exit(&sf->sf_mutex); sf_els_free(privp->fpkt); mutex_enter(&sf->sf_mutex); privp = sf->sf_els_list; } else { privp = privp->next; } } if (sf->sf_online_timer && sf->sf_online_timer < sf_watchdog_time) { for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; if (target != NULL) { if (!mescount && target->sft_state & SF_TARGET_BUSY) { sf_log(sf, CE_WARN, "!Loop " "Unstable: Failed to bring " "Loop Online\n"); mescount = 1; } target->sft_state |= SF_TARGET_MARK; } } sf_finish_init(sf, sf->sf_lip_cnt); sf->sf_state = SF_STATE_INIT; sf->sf_online_timer = 0; } if (sf->sf_state == SF_STATE_ONLINE) { mutex_exit(&sf->sf_mutex); if (count >= sf_pkt_scan_cnt) { sf_check_targets(sf); } } else if ((sf->sf_state == SF_STATE_OFFLINE) && (sf->sf_timer < sf_watchdog_time)) { for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; if ((target != NULL) && (target->sft_state & SF_TARGET_BUSY)) { sf_log(sf, CE_WARN, "!Offline Timeout\n"); if (sf_core && (sf_core & SF_CORE_OFFLINE_TIMEOUT)) { (void) soc_take_core( sf->sf_sochandle, sf->sf_socp); sf_core = 0; } break; } } sf_finish_init(sf, sf->sf_lip_cnt); sf->sf_state = SF_STATE_INIT; mutex_exit(&sf->sf_mutex); } else { mutex_exit(&sf->sf_mutex); } mutex_enter(&sf_global_mutex); } mutex_exit(&sf_global_mutex); if (count >= sf_pkt_scan_cnt) { count = 0; } if (pscan_count >= sf_pool_scan_cnt) { pscan_count = 0; } /* reset timeout */ sf_watchdog_id = timeout(sf_watch, (caddr_t)0, sf_watchdog_tick); /* signal waiting thread */ mutex_enter(&sf_global_mutex); sf_watch_running = 0; cv_broadcast(&sf_watch_cv); mutex_exit(&sf_global_mutex); } /* * called during a timeout to check targets */ static void sf_check_targets(struct sf *sf) { struct sf_target *target; int i; struct sf_pkt *cmd; struct scsi_pkt *pkt; int lip_cnt; mutex_enter(&sf->sf_mutex); lip_cnt = sf->sf_lip_cnt; mutex_exit(&sf->sf_mutex); /* check scan all possible targets */ for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; while (target != NULL) { mutex_enter(&target->sft_pkt_mutex); if (target->sft_alive && target->sft_scan_count != sf_target_scan_cnt) { target->sft_alive = 0; target->sft_scan_count++; mutex_exit(&target->sft_pkt_mutex); return; } target->sft_alive = 0; target->sft_scan_count = 0; cmd = target->sft_pkt_head; while (cmd != (struct sf_pkt *)&target->sft_pkt_head) { mutex_enter(&cmd->cmd_abort_mutex); if (cmd->cmd_state == SF_STATE_ISSUED && ((cmd->cmd_timeout && sf_watchdog_time > #ifdef DEBUG cmd->cmd_timeout) || sf_abort_flag)) { sf_abort_flag = 0; #else cmd->cmd_timeout))) { #endif cmd->cmd_timeout = 0; /* prevent reset from getting at this packet */ cmd->cmd_state = SF_STATE_ABORTING; mutex_exit(&cmd->cmd_abort_mutex); mutex_exit(&target->sft_pkt_mutex); sf->sf_stats.tstats[i].timeouts++; if (sf_target_timeout(sf, cmd)) return; else { if (lip_cnt != sf->sf_lip_cnt) { return; } else { mutex_enter(&target-> sft_pkt_mutex); cmd = target-> sft_pkt_head; } } /* * if the abort and lip fail, a reset will be carried out. * But the reset will ignore this packet. We have waited at least * 20 seconds after the initial timeout. Now, complete it here. * This also takes care of spurious bad aborts. */ } else if ((cmd->cmd_state == SF_STATE_ABORTING) && (cmd->cmd_timeout <= sf_watchdog_time)) { cmd->cmd_state = SF_STATE_IDLE; mutex_exit(&cmd->cmd_abort_mutex); mutex_exit(&target->sft_pkt_mutex); SF_DEBUG(1, (sf, CE_NOTE, "Command 0x%p to sft 0x%p" " delayed release\n", (void *)cmd, (void *)target)); pkt = cmd->cmd_pkt; pkt->pkt_statistics |= (STAT_TIMEOUT|STAT_ABORTED); pkt->pkt_reason = CMD_TIMEOUT; if (pkt->pkt_comp) { scsi_hba_pkt_comp(pkt); /* handle deferred_destroy case */ } else { if ((cmd->cmd_block->fcp_cntl. cntl_reset == 1) || (cmd->cmd_block-> fcp_cntl.cntl_abort_tsk == 1)) { cmd->cmd_block-> fcp_cntl. cntl_reset = 0; cmd->cmd_block-> fcp_cntl. cntl_abort_tsk = 0; cmd->cmd_fp_pkt-> fcal_pkt_comp = sf_cmd_callback; /* for cache */ sf_scsi_destroy_pkt (&pkt->pkt_address, pkt); } } mutex_enter(&target->sft_pkt_mutex); cmd = target->sft_pkt_head; } else { mutex_exit(&cmd->cmd_abort_mutex); cmd = cmd->cmd_forw; } } mutex_exit(&target->sft_pkt_mutex); target = target->sft_next_lun; } } } /* * a command to a target has timed out * return TRUE iff cmd abort failed or timed out, else return FALSE */ static int sf_target_timeout(struct sf *sf, struct sf_pkt *cmd) { int rval; struct scsi_pkt *pkt; struct fcal_packet *fpkt; int tgt_id; int retval = FALSE; SF_DEBUG(1, (sf, CE_NOTE, "Command 0x%p to target %x timed out\n", (void *)cmd->cmd_fp_pkt, cmd->cmd_pkt->pkt_address.a_target)); fpkt = cmd->cmd_fp_pkt; if (sf_core && (sf_core & SF_CORE_CMD_TIMEOUT)) { sf_token = (int *)(uintptr_t) fpkt->fcal_socal_request.sr_soc_hdr.\ sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } /* call the transport to abort a command */ rval = soc_abort(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, fpkt, 1); switch (rval) { case FCAL_ABORTED: SF_DEBUG(1, (sf, CE_NOTE, "Command Abort succeeded\n")); pkt = cmd->cmd_pkt; cmd->cmd_state = SF_STATE_IDLE; pkt->pkt_statistics |= (STAT_TIMEOUT|STAT_ABORTED); pkt->pkt_reason = CMD_TIMEOUT; if (pkt->pkt_comp != NULL) { (*pkt->pkt_comp)(pkt); } break; /* success */ case FCAL_ABORT_FAILED: SF_DEBUG(1, (sf, CE_NOTE, "Command Abort failed at target\n")); pkt = cmd->cmd_pkt; cmd->cmd_state = SF_STATE_IDLE; pkt->pkt_reason = CMD_TIMEOUT; pkt->pkt_statistics |= STAT_TIMEOUT; tgt_id = pkt->pkt_address.a_target; sf->sf_stats.tstats[tgt_id].abts_failures++; if (pkt->pkt_comp != NULL) { (*pkt->pkt_comp)(pkt); } break; case FCAL_BAD_ABORT: if (sf_core && (sf_core & SF_CORE_BAD_ABORT)) { sf_token = (int *)(uintptr_t)fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } SF_DEBUG(1, (sf, CE_NOTE, "Command Abort bad abort\n")); cmd->cmd_timeout = sf_watchdog_time + cmd->cmd_pkt->pkt_time + 20; break; case FCAL_TIMEOUT: retval = TRUE; break; default: pkt = cmd->cmd_pkt; tgt_id = pkt->pkt_address.a_target; sf_log(sf, CE_WARN, "Command Abort failed target 0x%x, forcing a LIP\n", tgt_id); if (sf_core && (sf_core & SF_CORE_ABORT_TIMEOUT)) { sf_token = (int *)(uintptr_t)fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } sf_force_lip(sf); retval = TRUE; break; } return (retval); } /* * an ELS command has timed out * return ??? */ static struct sf_els_hdr * sf_els_timeout(struct sf *sf, struct sf_els_hdr *privp) { struct fcal_packet *fpkt; int rval, dflag, timeout = SF_ELS_TIMEOUT; uint_t lip_cnt = privp->lip_cnt; uchar_t els_code = privp->els_code; struct sf_target *target = privp->target; char what[64]; fpkt = privp->fpkt; dflag = privp->delayed_retry; /* use as temporary state variable */ privp->timeout = SF_INVALID_TIMEOUT; mutex_exit(&sf->sf_mutex); if (privp->fpkt->fcal_pkt_comp == sf_els_callback) { /* * take socal core if required. Timeouts for IB and hosts * are not very interesting, so we take socal core only * if the timeout is *not* for a IB or host. */ if (sf_core && (sf_core & SF_CORE_ELS_TIMEOUT) && ((sf_alpa_to_switch[privp->dest_nport_id] & 0x0d) != 0x0d) && ((privp->dest_nport_id != 1) || (privp->dest_nport_id != 2) || (privp->dest_nport_id != 4) || (privp->dest_nport_id != 8) || (privp->dest_nport_id != 0xf))) { sf_token = (int *)(uintptr_t)fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } (void) sprintf(what, "ELS 0x%x", privp->els_code); } else if (privp->fpkt->fcal_pkt_comp == sf_reportlun_callback) { if (sf_core && (sf_core & SF_CORE_REPORTLUN_TIMEOUT)) { sf_token = (int *)(uintptr_t)fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } timeout = SF_FCP_TIMEOUT; (void) sprintf(what, "REPORT_LUNS"); } else if (privp->fpkt->fcal_pkt_comp == sf_inq_callback) { if (sf_core && (sf_core & SF_CORE_INQUIRY_TIMEOUT)) { sf_token = (int *)(uintptr_t) fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } timeout = SF_FCP_TIMEOUT; (void) sprintf(what, "INQUIRY to LUN 0x%lx", (long)SCSA_LUN(target)); } else { (void) sprintf(what, "UNKNOWN OPERATION"); } if (dflag) { /* delayed retry */ SF_DEBUG(2, (sf, CE_CONT, "!sf%d: %s to target %x delayed retry\n", ddi_get_instance(sf->sf_dip), what, sf_alpa_to_switch[privp->dest_nport_id])); privp->delayed_retry = FALSE; goto try_again; } sf_log(sf, CE_NOTE, "!%s to target 0x%x alpa 0x%x timed out\n", what, sf_alpa_to_switch[privp->dest_nport_id], privp->dest_nport_id); rval = soc_abort(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle ->fcal_portno, fpkt, 1); if (rval == FCAL_ABORTED || rval == FCAL_ABORT_FAILED) { SF_DEBUG(1, (sf, CE_NOTE, "!%s abort to al_pa %x succeeded\n", what, privp->dest_nport_id)); try_again: mutex_enter(&sf->sf_mutex); if (privp->prev != NULL) { privp->prev->next = privp->next; } if (sf->sf_els_list == privp) { sf->sf_els_list = privp->next; } if (privp->next != NULL) { privp->next->prev = privp->prev; } privp->prev = privp->next = NULL; if (lip_cnt == sf->sf_lip_cnt) { privp->timeout = sf_watchdog_time + timeout; if ((++(privp->retries) < sf_els_retries) || (dflag && (privp->retries < SF_BSY_RETRIES))) { mutex_exit(&sf->sf_mutex); sf_log(sf, CE_NOTE, "!%s to target 0x%x retrying\n", what, sf_alpa_to_switch[privp->dest_nport_id]); if (sf_els_transport(sf, privp) == 1) { mutex_enter(&sf->sf_mutex); return (sf->sf_els_list); /* success */ } mutex_enter(&sf->sf_mutex); fpkt = NULL; } if ((lip_cnt == sf->sf_lip_cnt) && (els_code != LA_ELS_LOGO)) { if (target != NULL) { sf_offline_target(sf, target); } if (sf->sf_lip_cnt == lip_cnt) { sf->sf_device_count--; ASSERT(sf->sf_device_count >= 0); if (sf->sf_device_count == 0) { sf_finish_init(sf, sf->sf_lip_cnt); } } } privp = sf->sf_els_list; mutex_exit(&sf->sf_mutex); if (fpkt != NULL) { sf_els_free(fpkt); } } else { mutex_exit(&sf->sf_mutex); sf_els_free(privp->fpkt); privp = NULL; } } else { if (sf_core && (sf_core & SF_CORE_ELS_FAILED)) { sf_token = (int *)(uintptr_t) fpkt->fcal_socal_request.\ sr_soc_hdr.sh_request_token; (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } sf_log(sf, CE_NOTE, "%s abort to target 0x%x failed. " "status=0x%x, forcing LIP\n", what, sf_alpa_to_switch[privp->dest_nport_id], rval); privp = NULL; if (sf->sf_lip_cnt == lip_cnt) { sf_force_lip(sf); } } mutex_enter(&sf->sf_mutex); return (privp); } /* * called by timeout when a reset times out */ /*ARGSUSED*/ static void sf_check_reset_delay(void *arg) { struct sf *sf; struct sf_target *target; struct sf_reset_list *rp, *tp; uint_t lip_cnt, reset_timeout_flag = FALSE; clock_t lb; lb = ddi_get_lbolt(); mutex_enter(&sf_global_mutex); sf_reset_timeout_id = 0; for (sf = sf_head; sf != NULL; sf = sf->sf_next) { mutex_exit(&sf_global_mutex); mutex_enter(&sf->sf_mutex); /* is this type cast needed? */ tp = (struct sf_reset_list *)&sf->sf_reset_list; rp = sf->sf_reset_list; while (rp != NULL) { if (((rp->timeout - lb) < 0) && (rp->lip_cnt == sf->sf_lip_cnt)) { tp->next = rp->next; mutex_exit(&sf->sf_mutex); target = rp->target; lip_cnt = rp->lip_cnt; kmem_free(rp, sizeof (struct sf_reset_list)); /* abort all cmds for this target */ while (target) { sf_abort_all(sf, target, FALSE, lip_cnt, TRUE); mutex_enter(&target->sft_mutex); if (lip_cnt == sf->sf_lip_cnt) { target->sft_state &= ~SF_TARGET_BUSY; } mutex_exit(&target->sft_mutex); target = target->sft_next_lun; } mutex_enter(&sf->sf_mutex); tp = (struct sf_reset_list *) &sf->sf_reset_list; rp = sf->sf_reset_list; lb = ddi_get_lbolt(); } else if (rp->lip_cnt != sf->sf_lip_cnt) { tp->next = rp->next; kmem_free(rp, sizeof (struct sf_reset_list)); rp = tp->next; } else { reset_timeout_flag = TRUE; tp = rp; rp = rp->next; } } mutex_exit(&sf->sf_mutex); mutex_enter(&sf_global_mutex); } if (reset_timeout_flag && (sf_reset_timeout_id == 0)) { sf_reset_timeout_id = timeout(sf_check_reset_delay, NULL, drv_usectohz(SF_TARGET_RESET_DELAY)); } mutex_exit(&sf_global_mutex); } /* * called to "reset the bus", i.e. force loop initialization (and address * re-negotiation) */ static void sf_force_lip(struct sf *sf) { int i; struct sf_target *target; /* disable restart of lip if we're suspended */ mutex_enter(&sf->sf_mutex); if (sf->sf_state & SF_STATE_SUSPENDED) { mutex_exit(&sf->sf_mutex); SF_DEBUG(1, (sf, CE_CONT, "sf_force_lip, sf%d: lip restart disabled " "due to DDI_SUSPEND\n", ddi_get_instance(sf->sf_dip))); return; } sf_log(sf, CE_NOTE, "Forcing lip\n"); for (i = 0; i < sf_max_targets; i++) { target = sf->sf_targets[i]; while (target != NULL) { mutex_enter(&target->sft_mutex); if (!(target->sft_state & SF_TARGET_OFFLINE)) target->sft_state |= SF_TARGET_BUSY; mutex_exit(&target->sft_mutex); target = target->sft_next_lun; } } sf->sf_lip_cnt++; sf->sf_timer = sf_watchdog_time + SF_OFFLINE_TIMEOUT; sf->sf_state = SF_STATE_OFFLINE; mutex_exit(&sf->sf_mutex); sf->sf_stats.lip_count++; /* no mutex for this? */ #ifdef DEBUG /* are we allowing LIPs ?? */ if (sf_lip_flag != 0) { #endif /* call the transport to force loop initialization */ if (((i = soc_force_lip(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, 1, FCAL_FORCE_LIP)) != FCAL_SUCCESS) && (i != FCAL_TIMEOUT)) { /* force LIP failed */ if (sf_core && (sf_core & SF_CORE_LIP_FAILED)) { (void) soc_take_core(sf->sf_sochandle, sf->sf_socp); sf_core = 0; } #ifdef DEBUG /* are we allowing reset after LIP failed ?? */ if (sf_reset_flag != 0) { #endif /* restart socal after resetting it */ sf_log(sf, CE_NOTE, "!Force lip failed Status code 0x%x." " Reseting\n", i); /* call transport to force a reset */ soc_force_reset(sf->sf_sochandle, sf->sf_socp, sf->sf_sochandle->fcal_portno, 1); #ifdef DEBUG } #endif } #ifdef DEBUG } #endif } /* * called by the transport when an unsolicited ELS is received */ static void sf_unsol_els_callback(void *arg, soc_response_t *srp, caddr_t payload) { struct sf *sf = (struct sf *)arg; els_payload_t *els = (els_payload_t *)payload; struct la_els_rjt *rsp; int i, tgt_id; uchar_t dest_id; struct fcal_packet *fpkt; fc_frame_header_t *hp; struct sf_els_hdr *privp; if ((els == NULL) || ((i = srp->sr_soc_hdr.sh_byte_cnt) == 0)) { return; } if (i > SOC_CQE_PAYLOAD) { i = SOC_CQE_PAYLOAD; } dest_id = (uchar_t)srp->sr_fc_frame_hdr.s_id; tgt_id = sf_alpa_to_switch[dest_id]; switch (els->els_cmd.c.ls_command) { case LA_ELS_LOGO: /* * logout received -- log the fact */ sf->sf_stats.tstats[tgt_id].logouts_recvd++; sf_log(sf, CE_NOTE, "!LOGO recvd from target %x, %s\n", tgt_id, sf_lip_on_plogo ? "Forcing LIP...." : ""); if (sf_lip_on_plogo) { sf_force_lip(sf); } break; default: /* includes LA_ELS_PLOGI */ /* * something besides a logout received -- we don't handle * this so send back a reject saying its unsupported */ sf_log(sf, CE_NOTE, "!ELS 0x%x recvd from target 0x%x\n", els->els_cmd.c.ls_command, tgt_id); /* allocate room for a response */ if (sf_els_alloc(sf, dest_id, sizeof (struct sf_els_hdr), sizeof (struct la_els_rjt), sizeof (union sf_els_rsp), (caddr_t *)&privp, (caddr_t *)&rsp) == NULL) { break; } fpkt = privp->fpkt; /* fill in pkt header */ hp = &fpkt->fcal_socal_request.sr_fc_frame_hdr; hp->r_ctl = R_CTL_ELS_RSP; hp->f_ctl = F_CTL_LAST_SEQ | F_CTL_XCHG_CONTEXT; hp->ox_id = srp->sr_fc_frame_hdr.ox_id; hp->rx_id = srp->sr_fc_frame_hdr.rx_id; fpkt->fcal_socal_request.sr_cqhdr.cq_hdr_type = CQ_TYPE_OUTBOUND; fpkt->fcal_socal_request.sr_soc_hdr.sh_seg_cnt = 1; /* fill in response */ rsp->ls_code = LA_ELS_RJT; /* reject this ELS */ rsp->mbz[0] = 0; rsp->mbz[1] = 0; rsp->mbz[2] = 0; ((struct la_els_logi *)privp->rsp)->ls_code = LA_ELS_ACC; *((int *)&rsp->reserved) = 0; rsp->reason_code = RJT_UNSUPPORTED; privp->retries = sf_els_retries; privp->els_code = LA_ELS_RJT; privp->timeout = (unsigned)0xffffffff; (void) sf_els_transport(sf, privp); break; } } /* * Error logging, printing, and debug print routines */ /*PRINTFLIKE3*/ static void sf_log(struct sf *sf, int level, const char *fmt, ...) { char buf[256]; dev_info_t *dip; va_list ap; if (sf != NULL) { dip = sf->sf_dip; } else { dip = NULL; } va_start(ap, fmt); (void) vsprintf(buf, fmt, ap); va_end(ap); scsi_log(dip, "sf", level, buf); } /* * called to get some sf kstats -- return 0 on success else return errno */ static int sf_kstat_update(kstat_t *ksp, int rw) { struct sf *sf; if (rw == KSTAT_WRITE) { /* can't write */ return (EACCES); } sf = ksp->ks_private; sf->sf_stats.ncmds = sf->sf_ncmds; sf->sf_stats.throttle_limit = sf->sf_throttle; sf->sf_stats.cr_pool_size = sf->sf_cr_pool_cnt; return (0); /* success */ } /* * Unix Entry Points */ /* * driver entry point for opens on control device */ /* ARGSUSED */ static int sf_open(dev_t *dev_p, int flag, int otyp, cred_t *cred_p) { dev_t dev = *dev_p; struct sf *sf; /* just ensure soft state exists for this device */ sf = ddi_get_soft_state(sf_state, SF_MINOR2INST(getminor(dev))); if (sf == NULL) { return (ENXIO); } ++(sf->sf_check_n_close); return (0); } /* * driver entry point for last close on control device */ /* ARGSUSED */ static int sf_close(dev_t dev, int flag, int otyp, cred_t *cred_p) { struct sf *sf; sf = ddi_get_soft_state(sf_state, SF_MINOR2INST(getminor(dev))); if (sf == NULL) { return (ENXIO); } if (!sf->sf_check_n_close) { /* if this flag is zero */ cmn_err(CE_WARN, "sf%d: trying to close unopened instance", SF_MINOR2INST(getminor(dev))); return (ENODEV); } else { --(sf->sf_check_n_close); } return (0); } /* * driver entry point for sf ioctl commands */ /* ARGSUSED */ static int sf_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *cred_p, int *rval_p) { struct sf *sf; struct sf_target *target; uchar_t al_pa; struct sf_al_map map; int cnt, i; int retval; /* return value */ struct devctl_iocdata *dcp; dev_info_t *cdip; struct scsi_address ap; scsi_hba_tran_t *tran; sf = ddi_get_soft_state(sf_state, SF_MINOR2INST(getminor(dev))); if (sf == NULL) { return (ENXIO); } /* handle all ioctls */ switch (cmd) { /* * We can use the generic implementation for these ioctls */ case DEVCTL_DEVICE_GETSTATE: case DEVCTL_DEVICE_ONLINE: case DEVCTL_DEVICE_OFFLINE: case DEVCTL_BUS_GETSTATE: return (ndi_devctl_ioctl(sf->sf_dip, cmd, arg, mode, 0)); /* * return FC map */ case SFIOCGMAP: if ((sf->sf_lilp_map->lilp_magic != FCAL_LILP_MAGIC && sf->sf_lilp_map->lilp_magic != FCAL_BADLILP_MAGIC) || sf->sf_state != SF_STATE_ONLINE) { retval = ENOENT; goto dun; } mutex_enter(&sf->sf_mutex); if (sf->sf_lilp_map->lilp_magic == FCAL_BADLILP_MAGIC) { int i, j = 0; /* Need to generate a fake lilp map */ for (i = 0; i < sf_max_targets; i++) { if (sf->sf_targets[i]) sf->sf_lilp_map->lilp_alpalist[j++] = sf->sf_targets[i]-> sft_hard_address; } sf->sf_lilp_map->lilp_length = (uchar_t)j; } cnt = sf->sf_lilp_map->lilp_length; map.sf_count = (short)cnt; bcopy((caddr_t)&sf->sf_sochandle->fcal_n_wwn, (caddr_t)&map.sf_hba_addr.sf_node_wwn, sizeof (la_wwn_t)); bcopy((caddr_t)&sf->sf_sochandle->fcal_p_wwn, (caddr_t)&map.sf_hba_addr.sf_port_wwn, sizeof (la_wwn_t)); map.sf_hba_addr.sf_al_pa = sf->sf_al_pa; map.sf_hba_addr.sf_hard_address = 0; map.sf_hba_addr.sf_inq_dtype = DTYPE_UNKNOWN; for (i = 0; i < cnt; i++) { al_pa = sf->sf_lilp_map->lilp_alpalist[i]; map.sf_addr_pair[i].sf_al_pa = al_pa; if (al_pa == sf->sf_al_pa) { (void) bcopy((caddr_t)&sf->sf_sochandle ->fcal_n_wwn, (caddr_t)&map. sf_addr_pair[i].sf_node_wwn, sizeof (la_wwn_t)); (void) bcopy((caddr_t)&sf->sf_sochandle ->fcal_p_wwn, (caddr_t)&map. sf_addr_pair[i].sf_port_wwn, sizeof (la_wwn_t)); map.sf_addr_pair[i].sf_hard_address = al_pa; map.sf_addr_pair[i].sf_inq_dtype = DTYPE_PROCESSOR; continue; } target = sf->sf_targets[sf_alpa_to_switch[ al_pa]]; if (target != NULL) { mutex_enter(&target->sft_mutex); if (!(target->sft_state & (SF_TARGET_OFFLINE | SF_TARGET_BUSY))) { bcopy((caddr_t)&target-> sft_node_wwn, (caddr_t)&map.sf_addr_pair [i].sf_node_wwn, sizeof (la_wwn_t)); bcopy((caddr_t)&target-> sft_port_wwn, (caddr_t)&map.sf_addr_pair [i].sf_port_wwn, sizeof (la_wwn_t)); map.sf_addr_pair[i]. sf_hard_address = target->sft_hard_address; map.sf_addr_pair[i]. sf_inq_dtype = target->sft_device_type; mutex_exit(&target->sft_mutex); continue; } mutex_exit(&target->sft_mutex); } bzero((caddr_t)&map.sf_addr_pair[i]. sf_node_wwn, sizeof (la_wwn_t)); bzero((caddr_t)&map.sf_addr_pair[i]. sf_port_wwn, sizeof (la_wwn_t)); map.sf_addr_pair[i].sf_inq_dtype = DTYPE_UNKNOWN; } mutex_exit(&sf->sf_mutex); if (ddi_copyout((caddr_t)&map, (caddr_t)arg, sizeof (struct sf_al_map), mode) != 0) { retval = EFAULT; goto dun; } break; /* * handle device control ioctls */ case DEVCTL_DEVICE_RESET: if (ndi_dc_allochdl((void *)arg, &dcp) != NDI_SUCCESS) { retval = EFAULT; goto dun; } if ((ndi_dc_getname(dcp) == NULL) || (ndi_dc_getaddr(dcp) == NULL)) { ndi_dc_freehdl(dcp); retval = EINVAL; goto dun; } cdip = ndi_devi_find(sf->sf_dip, ndi_dc_getname(dcp), ndi_dc_getaddr(dcp)); ndi_dc_freehdl(dcp); if (cdip == NULL) { retval = ENXIO; goto dun; } if ((target = sf_get_target_from_dip(sf, cdip)) == NULL) { retval = ENXIO; goto dun; } mutex_enter(&target->sft_mutex); if (!(target->sft_state & SF_TARGET_INIT_DONE)) { mutex_exit(&target->sft_mutex); retval = ENXIO; goto dun; } /* This is ugly */ tran = kmem_zalloc(scsi_hba_tran_size(), KM_SLEEP); bcopy(target->sft_tran, tran, scsi_hba_tran_size()); mutex_exit(&target->sft_mutex); ap.a_hba_tran = tran; ap.a_target = sf_alpa_to_switch[target->sft_al_pa]; if (sf_reset(&ap, RESET_TARGET) == FALSE) { retval = EIO; } else { retval = 0; } kmem_free(tran, scsi_hba_tran_size()); goto dun; case DEVCTL_BUS_QUIESCE: case DEVCTL_BUS_UNQUIESCE: retval = ENOTSUP; goto dun; case DEVCTL_BUS_RESET: case DEVCTL_BUS_RESETALL: sf_force_lip(sf); break; default: retval = ENOTTY; goto dun; } retval = 0; /* success */ dun: return (retval); } /* * get the target given a DIP */ static struct sf_target * sf_get_target_from_dip(struct sf *sf, dev_info_t *dip) { int i; struct sf_target *target; /* scan each hash queue for the DIP in question */ for (i = 0; i < SF_NUM_HASH_QUEUES; i++) { target = sf->sf_wwn_lists[i]; while (target != NULL) { if (target->sft_dip == dip) { return (target); /* success: target found */ } target = target->sft_next; } } return (NULL); /* failure: target not found */ } /* * called by the transport to get an event cookie */ static int sf_bus_get_eventcookie(dev_info_t *dip, dev_info_t *rdip, char *name, ddi_eventcookie_t *event_cookiep) { struct sf *sf; sf = ddi_get_soft_state(sf_state, ddi_get_instance(dip)); if (sf == NULL) { /* can't find instance for this device */ return (DDI_FAILURE); } return (ndi_event_retrieve_cookie(sf->sf_event_hdl, rdip, name, event_cookiep, NDI_EVENT_NOPASS)); } /* * called by the transport to add an event callback */ static int sf_bus_add_eventcall(dev_info_t *dip, dev_info_t *rdip, ddi_eventcookie_t eventid, void (*callback)(dev_info_t *dip, ddi_eventcookie_t event, void *arg, void *impl_data), void *arg, ddi_callback_id_t *cb_id) { struct sf *sf; sf = ddi_get_soft_state(sf_state, ddi_get_instance(dip)); if (sf == NULL) { /* can't find instance for this device */ return (DDI_FAILURE); } return (ndi_event_add_callback(sf->sf_event_hdl, rdip, eventid, callback, arg, NDI_SLEEP, cb_id)); } /* * called by the transport to remove an event callback */ static int sf_bus_remove_eventcall(dev_info_t *devi, ddi_callback_id_t cb_id) { struct sf *sf; sf = ddi_get_soft_state(sf_state, ddi_get_instance(devi)); if (sf == NULL) { /* can't find instance for this device */ return (DDI_FAILURE); } return (ndi_event_remove_callback(sf->sf_event_hdl, cb_id)); } /* * called by the transport to post an event */ static int sf_bus_post_event(dev_info_t *dip, dev_info_t *rdip, ddi_eventcookie_t eventid, void *impldata) { ddi_eventcookie_t remove_cookie, cookie; /* is this a remove event ?? */ struct sf *sf = ddi_get_soft_state(sf_state, ddi_get_instance(dip)); remove_cookie = ndi_event_tag_to_cookie(sf->sf_event_hdl, SF_EVENT_TAG_REMOVE); if (remove_cookie == eventid) { struct sf_target *target; /* handle remove event */ if (sf == NULL) { /* no sf instance for this device */ return (NDI_FAILURE); } /* get the target for this event */ if ((target = sf_get_target_from_dip(sf, rdip)) != NULL) { /* * clear device info for this target and mark as * not done */ mutex_enter(&target->sft_mutex); target->sft_dip = NULL; target->sft_state &= ~SF_TARGET_INIT_DONE; mutex_exit(&target->sft_mutex); return (NDI_SUCCESS); /* event handled */ } /* no target for this event */ return (NDI_FAILURE); } /* an insertion event */ if (ndi_busop_get_eventcookie(dip, rdip, FCAL_INSERT_EVENT, &cookie) != NDI_SUCCESS) { return (NDI_FAILURE); } return (ndi_post_event(dip, rdip, cookie, impldata)); } /* * the sf hotplug daemon, one thread per sf instance */ static void sf_hp_daemon(void *arg) { struct sf *sf = (struct sf *)arg; struct sf_hp_elem *elem; struct sf_target *target; int tgt_id; callb_cpr_t cprinfo; CALLB_CPR_INIT(&cprinfo, &sf->sf_hp_daemon_mutex, callb_generic_cpr, "sf_hp_daemon"); mutex_enter(&sf->sf_hp_daemon_mutex); do { while (sf->sf_hp_elem_head != NULL) { /* save ptr to head of list */ elem = sf->sf_hp_elem_head; /* take element off of list */ if (sf->sf_hp_elem_head == sf->sf_hp_elem_tail) { /* element only one in list -- list now empty */ sf->sf_hp_elem_head = NULL; sf->sf_hp_elem_tail = NULL; } else { /* remove element from head of list */ sf->sf_hp_elem_head = sf->sf_hp_elem_head->next; } mutex_exit(&sf->sf_hp_daemon_mutex); switch (elem->what) { case SF_ONLINE: /* online this target */ target = elem->target; (void) ndi_devi_online(elem->dip, 0); (void) ndi_event_retrieve_cookie( sf->sf_event_hdl, target->sft_dip, FCAL_INSERT_EVENT, &sf_insert_eid, NDI_EVENT_NOPASS); (void) ndi_event_run_callbacks(sf->sf_event_hdl, target->sft_dip, sf_insert_eid, NULL); break; case SF_OFFLINE: /* offline this target */ target = elem->target; tgt_id = sf_alpa_to_switch[target->sft_al_pa]; /* don't do NDI_DEVI_REMOVE for now */ if (ndi_devi_offline(elem->dip, 0) != NDI_SUCCESS) { SF_DEBUG(1, (sf, CE_WARN, "target %x, " "device offline failed", tgt_id)); } else { SF_DEBUG(1, (sf, CE_NOTE, "target %x, " "device offline succeeded\n", tgt_id)); } break; } kmem_free(elem, sizeof (struct sf_hp_elem)); mutex_enter(&sf->sf_hp_daemon_mutex); } /* if exit is not already signaled */ if (sf->sf_hp_exit == 0) { /* wait to be signaled by work or exit */ CALLB_CPR_SAFE_BEGIN(&cprinfo); cv_wait(&sf->sf_hp_daemon_cv, &sf->sf_hp_daemon_mutex); CALLB_CPR_SAFE_END(&cprinfo, &sf->sf_hp_daemon_mutex); } } while (sf->sf_hp_exit == 0); /* sf_hp_daemon_mutex is dropped by CALLB_CPR_EXIT */ CALLB_CPR_EXIT(&cprinfo); thread_exit(); /* no more hotplug thread */ /* NOTREACHED */ }