/* * 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 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2010, Intel Corporation. * All rights reserved. */ /* * PIM-DR layer of DR driver. Provides interface between user * level applications and the PSM-DR layer. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern int nulldev(); extern int nodev(); extern struct memlist *phys_install; #ifdef DEBUG uint_t dr_debug = 0; /* dr.h for bit values */ #endif /* DEBUG */ static int dr_dev_type_to_nt(char *); /* * NOTE: state_str, nt_str and SBD_CMD_STR are only used in a debug * kernel. They are, however, referenced during both debug and non-debug * compiles. */ static char *state_str[] = { "EMPTY", "OCCUPIED", "CONNECTED", "UNCONFIGURED", "PARTIAL", "CONFIGURED", "RELEASE", "UNREFERENCED", "FATAL" }; #define SBD_CMD_STR(c) \ (((c) == SBD_CMD_ASSIGN) ? "ASSIGN" : \ ((c) == SBD_CMD_UNASSIGN) ? "UNASSIGN" : \ ((c) == SBD_CMD_POWERON) ? "POWERON" : \ ((c) == SBD_CMD_POWEROFF) ? "POWEROFF" : \ ((c) == SBD_CMD_TEST) ? "TEST" : \ ((c) == SBD_CMD_CONNECT) ? "CONNECT" : \ ((c) == SBD_CMD_DISCONNECT) ? "DISCONNECT" : \ ((c) == SBD_CMD_CONFIGURE) ? "CONFIGURE" : \ ((c) == SBD_CMD_UNCONFIGURE) ? "UNCONFIGURE" : \ ((c) == SBD_CMD_GETNCM) ? "GETNCM" : \ ((c) == SBD_CMD_PASSTHRU) ? "PASSTHRU" : \ ((c) == SBD_CMD_STATUS) ? "STATUS" : "unknown") #define DR_GET_BOARD_DEVUNIT(sb, ut, un) (&((sb)->b_dev[DEVSET_NIX(ut)][un])) #define DR_MAKE_MINOR(i, b) (((i) << 16) | (b)) #define DR_MINOR2INST(m) (((m) >> 16) & 0xffff) #define DR_MINOR2BNUM(m) ((m) & 0xffff) /* for the DR*INTERNAL_ERROR macros. see sys/dr.h. */ static char *dr_ie_fmt = "dr.c %d"; /* struct for drmach device name to sbd_comp_type_t mapping */ typedef struct { char *s_devtype; sbd_comp_type_t s_nodetype; } dr_devname_t; /* struct to map starfire device attributes - name:sbd_comp_type_t */ static dr_devname_t dr_devattr[] = { { DRMACH_DEVTYPE_MEM, SBD_COMP_MEM }, { DRMACH_DEVTYPE_CPU, SBD_COMP_CPU }, { DRMACH_DEVTYPE_PCI, SBD_COMP_IO }, #if defined(DRMACH_DEVTYPE_SBUS) { DRMACH_DEVTYPE_SBUS, SBD_COMP_IO }, #endif #if defined(DRMACH_DEVTYPE_WCI) { DRMACH_DEVTYPE_WCI, SBD_COMP_IO }, #endif /* last s_devtype must be NULL, s_nodetype must be SBD_COMP_UNKNOWN */ { NULL, SBD_COMP_UNKNOWN } }; /* * Per instance soft-state structure. */ typedef struct dr_softstate { dev_info_t *dip; dr_board_t *boards; kmutex_t i_lock; int dr_initialized; } dr_softstate_t; /* * dr Global data elements */ struct dr_global { dr_softstate_t *softsp; /* pointer to initialize soft state */ kmutex_t lock; } dr_g; dr_unsafe_devs_t dr_unsafe_devs; /* * Table of known passthru commands. */ struct { char *pt_name; int (*pt_func)(dr_handle_t *); } pt_arr[] = { "quiesce", dr_pt_test_suspend, }; int dr_modunload_okay = 0; /* set to non-zero to allow unload */ /* * State transition table. States valid transitions for "board" state. * Recall that non-zero return value terminates operation, however * the herrno value is what really indicates an error , if any. */ static int _cmd2index(int c) { /* * Translate DR CMD to index into dr_state_transition. */ switch (c) { case SBD_CMD_CONNECT: return (0); case SBD_CMD_DISCONNECT: return (1); case SBD_CMD_CONFIGURE: return (2); case SBD_CMD_UNCONFIGURE: return (3); case SBD_CMD_ASSIGN: return (4); case SBD_CMD_UNASSIGN: return (5); case SBD_CMD_POWERON: return (6); case SBD_CMD_POWEROFF: return (7); case SBD_CMD_TEST: return (8); default: return (-1); } } #define CMD2INDEX(c) _cmd2index(c) static struct dr_state_trans { int x_cmd; struct { int x_rv; /* return value of pre_op */ int x_err; /* error, if any */ } x_op[DR_STATE_MAX]; } dr_state_transition[] = { { SBD_CMD_CONNECT, { { 0, 0 }, /* empty */ { 0, 0 }, /* occupied */ { -1, ESBD_STATE }, /* connected */ { -1, ESBD_STATE }, /* unconfigured */ { -1, ESBD_STATE }, /* partial */ { -1, ESBD_STATE }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_DISCONNECT, { { -1, ESBD_STATE }, /* empty */ { 0, 0 }, /* occupied */ { 0, 0 }, /* connected */ { 0, 0 }, /* unconfigured */ { -1, ESBD_STATE }, /* partial */ { -1, ESBD_STATE }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_CONFIGURE, { { -1, ESBD_STATE }, /* empty */ { -1, ESBD_STATE }, /* occupied */ { 0, 0 }, /* connected */ { 0, 0 }, /* unconfigured */ { 0, 0 }, /* partial */ { 0, 0 }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_UNCONFIGURE, { { -1, ESBD_STATE }, /* empty */ { -1, ESBD_STATE }, /* occupied */ { -1, ESBD_STATE }, /* connected */ { -1, ESBD_STATE }, /* unconfigured */ { 0, 0 }, /* partial */ { 0, 0 }, /* configured */ { 0, 0 }, /* release */ { 0, 0 }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_ASSIGN, { { 0, 0 }, /* empty */ { 0, 0 }, /* occupied */ { -1, ESBD_STATE }, /* connected */ { -1, ESBD_STATE }, /* unconfigured */ { -1, ESBD_STATE }, /* partial */ { -1, ESBD_STATE }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_UNASSIGN, { { 0, 0 }, /* empty */ { 0, 0 }, /* occupied */ { -1, ESBD_STATE }, /* connected */ { -1, ESBD_STATE }, /* unconfigured */ { -1, ESBD_STATE }, /* partial */ { -1, ESBD_STATE }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_POWERON, { { 0, 0 }, /* empty */ { 0, 0 }, /* occupied */ { -1, ESBD_STATE }, /* connected */ { -1, ESBD_STATE }, /* unconfigured */ { -1, ESBD_STATE }, /* partial */ { -1, ESBD_STATE }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_POWEROFF, { { 0, 0 }, /* empty */ { 0, 0 }, /* occupied */ { -1, ESBD_STATE }, /* connected */ { -1, ESBD_STATE }, /* unconfigured */ { -1, ESBD_STATE }, /* partial */ { -1, ESBD_STATE }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, { SBD_CMD_TEST, { { 0, 0 }, /* empty */ { 0, 0 }, /* occupied */ { -1, ESBD_STATE }, /* connected */ { -1, ESBD_STATE }, /* unconfigured */ { -1, ESBD_STATE }, /* partial */ { -1, ESBD_STATE }, /* configured */ { -1, ESBD_STATE }, /* release */ { -1, ESBD_STATE }, /* unreferenced */ { -1, ESBD_FATAL_STATE }, /* fatal */ } }, }; /* * Global R/W lock to synchronize access across * multiple boards. Users wanting multi-board access * must grab WRITE lock, others must grab READ lock. */ krwlock_t dr_grwlock; /* * Head of the boardlist used as a reference point for * locating board structs. * TODO: eliminate dr_boardlist */ dr_board_t *dr_boardlist; /* * DR support functions. */ static dr_devset_t dr_dev2devset(sbd_comp_id_t *cid); static int dr_check_transition(dr_board_t *bp, dr_devset_t *devsetp, struct dr_state_trans *transp, int cmd); static int dr_check_unit_attached(dr_common_unit_t *dp); static sbd_error_t *dr_init_devlists(dr_board_t *bp); static void dr_board_discovery(dr_board_t *bp); static int dr_board_init(dr_board_t *bp, dev_info_t *dip, int bd); static void dr_board_destroy(dr_board_t *bp); static void dr_board_transition(dr_board_t *bp, dr_state_t st); /* * DR driver (DDI) entry points. */ static int dr_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result); static int dr_detach(dev_info_t *dip, ddi_detach_cmd_t cmd); static int dr_attach(dev_info_t *dip, ddi_attach_cmd_t cmd); static int dr_probe(dev_info_t *dip); static int dr_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *cred_p, int *rval_p); static int dr_close(dev_t dev, int flag, int otyp, cred_t *cred_p); static int dr_open(dev_t *dev, int flag, int otyp, cred_t *cred_p); /* * DR command processing operations. */ static int dr_copyin_iocmd(dr_handle_t *hp); static int dr_copyout_iocmd(dr_handle_t *hp); static int dr_copyout_errs(dr_handle_t *hp); static int dr_pre_op(dr_handle_t *hp); static int dr_post_op(dr_handle_t *hp, int rv); static int dr_exec_op(dr_handle_t *hp); static void dr_assign_board(dr_handle_t *hp); static void dr_unassign_board(dr_handle_t *hp); static void dr_connect(dr_handle_t *hp); static int dr_disconnect(dr_handle_t *hp); static void dr_dev_configure(dr_handle_t *hp); static void dr_dev_release(dr_handle_t *hp); static int dr_dev_unconfigure(dr_handle_t *hp); static void dr_dev_cancel(dr_handle_t *hp); static int dr_dev_status(dr_handle_t *hp); static int dr_get_ncm(dr_handle_t *hp); static int dr_pt_ioctl(dr_handle_t *hp); static void dr_poweron_board(dr_handle_t *hp); static void dr_poweroff_board(dr_handle_t *hp); static void dr_test_board(dr_handle_t *hp); /* * Autoconfiguration data structures */ struct cb_ops dr_cb_ops = { dr_open, /* open */ dr_close, /* close */ nodev, /* strategy */ nodev, /* print */ nodev, /* dump */ nodev, /* read */ nodev, /* write */ dr_ioctl, /* ioctl */ nodev, /* devmap */ nodev, /* mmap */ nodev, /* segmap */ nochpoll, /* chpoll */ ddi_prop_op, /* cb_prop_op */ NULL, /* struct streamtab */ D_NEW | D_MP | D_MTSAFE, /* compatibility flags */ CB_REV, /* Rev */ nodev, /* cb_aread */ nodev /* cb_awrite */ }; struct dev_ops dr_dev_ops = { DEVO_REV, /* build version */ 0, /* dev ref count */ dr_getinfo, /* getinfo */ nulldev, /* identify */ dr_probe, /* probe */ dr_attach, /* attach */ dr_detach, /* detach */ nodev, /* reset */ &dr_cb_ops, /* cb_ops */ (struct bus_ops *)NULL, /* bus ops */ NULL, /* power */ ddi_quiesce_not_needed, /* quiesce */ }; extern struct mod_ops mod_driverops; static struct modldrv modldrv = { &mod_driverops, "Dynamic Reconfiguration", &dr_dev_ops }; static struct modlinkage modlinkage = { MODREV_1, (void *)&modldrv, NULL }; /* * Driver entry points. */ int _init(void) { int err; /* * If you need to support multiple nodes (instances), then * whatever the maximum number of supported nodes is would * need to passed as the third parameter to ddi_soft_state_init(). * Alternative would be to dynamically fini and re-init the * soft state structure each time a node is attached. */ err = ddi_soft_state_init((void **)&dr_g.softsp, sizeof (dr_softstate_t), 1); if (err) return (err); mutex_init(&dr_g.lock, NULL, MUTEX_DRIVER, NULL); rw_init(&dr_grwlock, NULL, RW_DEFAULT, NULL); return (mod_install(&modlinkage)); } int _fini(void) { int err; if ((err = mod_remove(&modlinkage)) != 0) return (err); mutex_destroy(&dr_g.lock); rw_destroy(&dr_grwlock); ddi_soft_state_fini((void **)&dr_g.softsp); return (0); } int _info(struct modinfo *modinfop) { return (mod_info(&modlinkage, modinfop)); } /*ARGSUSED1*/ static int dr_open(dev_t *dev, int flag, int otyp, cred_t *cred_p) { int instance; dr_softstate_t *softsp; dr_board_t *bp; /* * Don't open unless we've attached. */ instance = DR_MINOR2INST(getminor(*dev)); softsp = ddi_get_soft_state(dr_g.softsp, instance); if (softsp == NULL) return (ENXIO); mutex_enter(&softsp->i_lock); if (!softsp->dr_initialized) { int bd; int rv = 0; bp = softsp->boards; /* initialize each array element */ for (bd = 0; bd < MAX_BOARDS; bd++, bp++) { rv = dr_board_init(bp, softsp->dip, bd); if (rv) break; } if (rv == 0) { softsp->dr_initialized = 1; } else { /* destroy elements initialized thus far */ while (--bp >= softsp->boards) dr_board_destroy(bp); /* TODO: should this be another errno val ? */ mutex_exit(&softsp->i_lock); return (ENXIO); } } mutex_exit(&softsp->i_lock); bp = &softsp->boards[DR_MINOR2BNUM(getminor(*dev))]; /* * prevent opening of a dyn-ap for a board * that does not exist */ if (!bp->b_assigned) { if (drmach_board_lookup(bp->b_num, &bp->b_id) != 0) return (ENODEV); } return (0); } /*ARGSUSED*/ static int dr_close(dev_t dev, int flag, int otyp, cred_t *cred_p) { return (0); } /* * Enable/disable DR features. */ int dr_enable = 1; /*ARGSUSED3*/ static int dr_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *cred_p, int *rval_p) { int rv = 0; int instance; int bd; dr_handle_t *hp; dr_softstate_t *softsp; static fn_t f = "dr_ioctl"; PR_ALL("%s...\n", f); instance = DR_MINOR2INST(getminor(dev)); softsp = ddi_get_soft_state(dr_g.softsp, instance); if (softsp == NULL) { cmn_err(CE_WARN, "dr%d: module not yet attached", instance); return (ENXIO); } if (!dr_enable) { switch (cmd) { case SBD_CMD_STATUS: case SBD_CMD_GETNCM: case SBD_CMD_PASSTHRU: break; default: return (ENOTSUP); } } bd = DR_MINOR2BNUM(getminor(dev)); if (bd >= MAX_BOARDS) return (ENXIO); /* get and initialize storage for new handle */ hp = GETSTRUCT(dr_handle_t, 1); hp->h_bd = &softsp->boards[bd]; hp->h_err = NULL; hp->h_dev = getminor(dev); hp->h_cmd = cmd; hp->h_mode = mode; hp->h_iap = (sbd_ioctl_arg_t *)arg; /* copy sbd command into handle */ rv = dr_copyin_iocmd(hp); if (rv) { FREESTRUCT(hp, dr_handle_t, 1); return (EINVAL); } /* translate canonical name to component type */ if (hp->h_sbdcmd.cmd_cm.c_id.c_name[0] != '\0') { hp->h_sbdcmd.cmd_cm.c_id.c_type = dr_dev_type_to_nt(hp->h_sbdcmd.cmd_cm.c_id.c_name); PR_ALL("%s: c_name = %s, c_type = %d\n", f, hp->h_sbdcmd.cmd_cm.c_id.c_name, hp->h_sbdcmd.cmd_cm.c_id.c_type); } else { /*EMPTY*/ PR_ALL("%s: c_name is NULL\n", f); } /* determine scope of operation */ hp->h_devset = dr_dev2devset(&hp->h_sbdcmd.cmd_cm.c_id); switch (hp->h_cmd) { case SBD_CMD_STATUS: case SBD_CMD_GETNCM: /* no locks needed for these commands */ break; default: rw_enter(&dr_grwlock, RW_WRITER); mutex_enter(&hp->h_bd->b_lock); /* * If we're dealing with memory at all, then we have * to keep the "exclusive" global lock held. This is * necessary since we will probably need to look at * multiple board structs. Otherwise, we only have * to deal with the board in question and so can drop * the global lock to "shared". */ rv = DEVSET_IN_SET(hp->h_devset, SBD_COMP_MEM, DEVSET_ANYUNIT); if (rv == 0) rw_downgrade(&dr_grwlock); break; } rv = 0; if (rv == 0) rv = dr_pre_op(hp); if (rv == 0) { rv = dr_exec_op(hp); rv = dr_post_op(hp, rv); } if (rv == -1) rv = EIO; if (hp->h_err != NULL) if (!(rv = dr_copyout_errs(hp))) rv = EIO; /* undo locking, if any, done before dr_pre_op */ switch (hp->h_cmd) { case SBD_CMD_STATUS: case SBD_CMD_GETNCM: break; case SBD_CMD_ASSIGN: case SBD_CMD_UNASSIGN: case SBD_CMD_POWERON: case SBD_CMD_POWEROFF: case SBD_CMD_CONNECT: case SBD_CMD_CONFIGURE: case SBD_CMD_UNCONFIGURE: case SBD_CMD_DISCONNECT: /* Board changed state. Log a sysevent. */ if (rv == 0) (void) drmach_log_sysevent(hp->h_bd->b_num, "", SE_SLEEP, 0); /* Fall through */ default: mutex_exit(&hp->h_bd->b_lock); rw_exit(&dr_grwlock); } if (hp->h_opts.size != 0) FREESTRUCT(hp->h_opts.copts, char, hp->h_opts.size); FREESTRUCT(hp, dr_handle_t, 1); return (rv); } /*ARGSUSED*/ static int dr_probe(dev_info_t *dip) { return (DDI_PROBE_SUCCESS); } static int dr_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) { int rv, rv2; int bd; int instance; sbd_error_t *err; dr_softstate_t *softsp; instance = ddi_get_instance(dip); switch (cmd) { case DDI_ATTACH: rw_enter(&dr_grwlock, RW_WRITER); rv = ddi_soft_state_zalloc(dr_g.softsp, instance); if (rv != DDI_SUCCESS) { cmn_err(CE_WARN, "dr%d: failed to alloc soft-state", instance); return (DDI_FAILURE); } /* initialize softstate structure */ softsp = ddi_get_soft_state(dr_g.softsp, instance); softsp->dip = dip; mutex_init(&softsp->i_lock, NULL, MUTEX_DRIVER, NULL); /* allocate board array (aka boardlist) */ softsp->boards = GETSTRUCT(dr_board_t, MAX_BOARDS); /* TODO: eliminate dr_boardlist */ dr_boardlist = softsp->boards; /* initialize each array element */ rv = DDI_SUCCESS; for (bd = 0; bd < MAX_BOARDS; bd++) { dr_board_t *bp = &softsp->boards[bd]; char *p, *name; int l, minor_num; /* * initialized board attachment point path * (relative to pseudo) in a form immediately * reusable as an cfgadm command argument. * TODO: clean this up */ p = bp->b_path; l = sizeof (bp->b_path); (void) snprintf(p, l, "dr@%d:", instance); while (*p != '\0') { l--; p++; } name = p; err = drmach_board_name(bd, p, l); if (err) { sbd_err_clear(&err); rv = DDI_FAILURE; break; } minor_num = DR_MAKE_MINOR(instance, bd); rv = ddi_create_minor_node(dip, name, S_IFCHR, minor_num, DDI_NT_SBD_ATTACHMENT_POINT, 0); if (rv != DDI_SUCCESS) rv = DDI_FAILURE; } if (rv == DDI_SUCCESS) { /* * Announce the node's presence. */ ddi_report_dev(dip); } else { ddi_remove_minor_node(dip, NULL); } /* * Init registered unsafe devs. */ dr_unsafe_devs.devnames = NULL; rv2 = ddi_prop_lookup_string_array(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, "unsupported-io-drivers", &dr_unsafe_devs.devnames, &dr_unsafe_devs.ndevs); if (rv2 != DDI_PROP_SUCCESS) dr_unsafe_devs.ndevs = 0; rw_exit(&dr_grwlock); return (rv); default: return (DDI_FAILURE); } /*NOTREACHED*/ } static int dr_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) { int instance; dr_softstate_t *softsp; switch (cmd) { case DDI_DETACH: if (!dr_modunload_okay) return (DDI_FAILURE); rw_enter(&dr_grwlock, RW_WRITER); instance = ddi_get_instance(dip); softsp = ddi_get_soft_state(dr_g.softsp, instance); /* TODO: eliminate dr_boardlist */ ASSERT(softsp->boards == dr_boardlist); /* remove all minor nodes */ ddi_remove_minor_node(dip, NULL); if (softsp->dr_initialized) { int bd; for (bd = 0; bd < MAX_BOARDS; bd++) dr_board_destroy(&softsp->boards[bd]); } FREESTRUCT(softsp->boards, dr_board_t, MAX_BOARDS); mutex_destroy(&softsp->i_lock); ddi_soft_state_free(dr_g.softsp, instance); rw_exit(&dr_grwlock); return (DDI_SUCCESS); default: return (DDI_FAILURE); } /*NOTREACHED*/ } static int dr_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) { _NOTE(ARGUNUSED(dip)) dev_t dev = (dev_t)arg; int instance, error; dr_softstate_t *softsp; *result = NULL; error = DDI_SUCCESS; instance = DR_MINOR2INST(getminor(dev)); switch (cmd) { case DDI_INFO_DEVT2DEVINFO: softsp = ddi_get_soft_state(dr_g.softsp, instance); if (softsp == NULL) return (DDI_FAILURE); *result = (void *)softsp->dip; break; case DDI_INFO_DEVT2INSTANCE: *result = (void *)(uintptr_t)instance; break; default: error = DDI_FAILURE; break; } return (error); } /* * DR operations. */ static int dr_copyin_iocmd(dr_handle_t *hp) { static fn_t f = "dr_copyin_iocmd"; sbd_cmd_t *scp = &hp->h_sbdcmd; if (hp->h_iap == NULL) return (EINVAL); bzero((caddr_t)scp, sizeof (sbd_cmd_t)); #ifdef _MULTI_DATAMODEL if (ddi_model_convert_from(hp->h_mode & FMODELS) == DDI_MODEL_ILP32) { sbd_cmd32_t scmd32; bzero((caddr_t)&scmd32, sizeof (sbd_cmd32_t)); if (ddi_copyin((void *)hp->h_iap, (void *)&scmd32, sizeof (sbd_cmd32_t), hp->h_mode)) { cmn_err(CE_WARN, "%s: (32bit) failed to copyin " "sbdcmd-struct", f); return (EFAULT); } scp->cmd_cm.c_id.c_type = scmd32.cmd_cm.c_id.c_type; scp->cmd_cm.c_id.c_unit = scmd32.cmd_cm.c_id.c_unit; bcopy(&scmd32.cmd_cm.c_id.c_name[0], &scp->cmd_cm.c_id.c_name[0], OBP_MAXPROPNAME); scp->cmd_cm.c_flags = scmd32.cmd_cm.c_flags; scp->cmd_cm.c_len = scmd32.cmd_cm.c_len; scp->cmd_cm.c_opts = (caddr_t)(uintptr_t)scmd32.cmd_cm.c_opts; switch (hp->h_cmd) { case SBD_CMD_STATUS: scp->cmd_stat.s_nbytes = scmd32.cmd_stat.s_nbytes; scp->cmd_stat.s_statp = (caddr_t)(uintptr_t)scmd32.cmd_stat.s_statp; break; default: break; } } else #endif /* _MULTI_DATAMODEL */ if (ddi_copyin((void *)hp->h_iap, (void *)scp, sizeof (sbd_cmd_t), hp->h_mode) != 0) { cmn_err(CE_WARN, "%s: failed to copyin sbdcmd-struct", f); return (EFAULT); } if ((hp->h_opts.size = scp->cmd_cm.c_len) != 0) { hp->h_opts.copts = GETSTRUCT(char, scp->cmd_cm.c_len + 1); ++hp->h_opts.size; if (ddi_copyin((void *)scp->cmd_cm.c_opts, (void *)hp->h_opts.copts, scp->cmd_cm.c_len, hp->h_mode) != 0) { cmn_err(CE_WARN, "%s: failed to copyin options", f); return (EFAULT); } } return (0); } static int dr_copyout_iocmd(dr_handle_t *hp) { static fn_t f = "dr_copyout_iocmd"; sbd_cmd_t *scp = &hp->h_sbdcmd; if (hp->h_iap == NULL) return (EINVAL); #ifdef _MULTI_DATAMODEL if (ddi_model_convert_from(hp->h_mode & FMODELS) == DDI_MODEL_ILP32) { sbd_cmd32_t scmd32; scmd32.cmd_cm.c_id.c_type = scp->cmd_cm.c_id.c_type; scmd32.cmd_cm.c_id.c_unit = scp->cmd_cm.c_id.c_unit; bcopy(&scp->cmd_cm.c_id.c_name[0], &scmd32.cmd_cm.c_id.c_name[0], OBP_MAXPROPNAME); scmd32.cmd_cm.c_flags = scp->cmd_cm.c_flags; scmd32.cmd_cm.c_len = scp->cmd_cm.c_len; scmd32.cmd_cm.c_opts = (caddr32_t)(uintptr_t)scp->cmd_cm.c_opts; switch (hp->h_cmd) { case SBD_CMD_GETNCM: scmd32.cmd_getncm.g_ncm = scp->cmd_getncm.g_ncm; break; default: break; } if (ddi_copyout((void *)&scmd32, (void *)hp->h_iap, sizeof (sbd_cmd32_t), hp->h_mode)) { cmn_err(CE_WARN, "%s: (32bit) failed to copyout " "sbdcmd-struct", f); return (EFAULT); } } else #endif /* _MULTI_DATAMODEL */ if (ddi_copyout((void *)scp, (void *)hp->h_iap, sizeof (sbd_cmd_t), hp->h_mode) != 0) { cmn_err(CE_WARN, "%s: failed to copyout sbdcmd-struct", f); return (EFAULT); } return (0); } static int dr_copyout_errs(dr_handle_t *hp) { static fn_t f = "dr_copyout_errs"; if (hp->h_err == NULL) return (0); if (hp->h_err->e_code) { PR_ALL("%s: error %d %s", f, hp->h_err->e_code, hp->h_err->e_rsc); } #ifdef _MULTI_DATAMODEL if (ddi_model_convert_from(hp->h_mode & FMODELS) == DDI_MODEL_ILP32) { sbd_error32_t *serr32p; serr32p = GETSTRUCT(sbd_error32_t, 1); serr32p->e_code = hp->h_err->e_code; bcopy(&hp->h_err->e_rsc[0], &serr32p->e_rsc[0], MAXPATHLEN); if (ddi_copyout((void *)serr32p, (void *)&((sbd_ioctl_arg32_t *)hp->h_iap)->i_err, sizeof (sbd_error32_t), hp->h_mode)) { cmn_err(CE_WARN, "%s: (32bit) failed to copyout", f); return (EFAULT); } FREESTRUCT(serr32p, sbd_error32_t, 1); } else #endif /* _MULTI_DATAMODEL */ if (ddi_copyout((void *)hp->h_err, (void *)&hp->h_iap->i_err, sizeof (sbd_error_t), hp->h_mode)) { cmn_err(CE_WARN, "%s: failed to copyout", f); return (EFAULT); } sbd_err_clear(&hp->h_err); return (0); } /* * pre-op entry point must sbd_err_set_c(), if needed. * Return value of non-zero indicates failure. */ static int dr_pre_op(dr_handle_t *hp) { int rv = 0, t; int cmd, serr = 0; dr_devset_t devset; dr_board_t *bp = hp->h_bd; dr_handle_t *shp = hp; static fn_t f = "dr_pre_op"; cmd = hp->h_cmd; devset = shp->h_devset; PR_ALL("%s (cmd = %s)...\n", f, SBD_CMD_STR(cmd)); devset = DEVSET_AND(devset, DR_DEVS_PRESENT(bp)); hp->h_err = drmach_pre_op(cmd, bp->b_id, &hp->h_opts, &devset); if (hp->h_err != NULL) { PR_ALL("drmach_pre_op failed for cmd %s(%d)\n", SBD_CMD_STR(cmd), cmd); return (-1); } /* * Check for valid state transitions. */ if ((t = CMD2INDEX(cmd)) != -1) { struct dr_state_trans *transp; int state_err; transp = &dr_state_transition[t]; ASSERT(transp->x_cmd == cmd); state_err = dr_check_transition(bp, &devset, transp, cmd); if (state_err < 0) { /* * Invalidate device. */ dr_op_err(CE_IGNORE, hp, ESBD_INVAL, NULL); serr = -1; PR_ALL("%s: invalid devset (0x%x)\n", f, (uint_t)devset); } else if (state_err != 0) { /* * State transition is not a valid one. */ dr_op_err(CE_IGNORE, hp, transp->x_op[state_err].x_err, NULL); serr = transp->x_op[state_err].x_rv; PR_ALL("%s: invalid state %s(%d) for cmd %s(%d)\n", f, state_str[state_err], state_err, SBD_CMD_STR(cmd), cmd); } else { shp->h_devset = devset; } } if (serr) { rv = -1; } return (rv); } static int dr_post_op(dr_handle_t *hp, int rv) { int cmd; sbd_error_t *err; dr_board_t *bp = hp->h_bd; static fn_t f = "dr_post_op"; cmd = hp->h_cmd; PR_ALL("%s (cmd = %s)...\n", f, SBD_CMD_STR(cmd)); err = drmach_post_op(cmd, bp->b_id, &hp->h_opts, rv); if (err != NULL) { PR_ALL("drmach_post_op failed for cmd %s(%d)\n", SBD_CMD_STR(cmd), cmd); if (rv == 0) { ASSERT(hp->h_err == NULL); hp->h_err = err; rv = -1; } else if (hp->h_err == NULL) { hp->h_err = err; } else { sbd_err_clear(&err); } } return (rv); } static int dr_exec_op(dr_handle_t *hp) { int rv = 0; static fn_t f = "dr_exec_op"; /* errors should have been caught by now */ ASSERT(hp->h_err == NULL); switch (hp->h_cmd) { case SBD_CMD_ASSIGN: dr_assign_board(hp); break; case SBD_CMD_UNASSIGN: dr_unassign_board(hp); break; case SBD_CMD_POWEROFF: dr_poweroff_board(hp); break; case SBD_CMD_POWERON: dr_poweron_board(hp); break; case SBD_CMD_TEST: dr_test_board(hp); break; case SBD_CMD_CONNECT: dr_connect(hp); break; case SBD_CMD_CONFIGURE: dr_dev_configure(hp); break; case SBD_CMD_UNCONFIGURE: dr_dev_release(hp); if (hp->h_err == NULL) rv = dr_dev_unconfigure(hp); else dr_dev_cancel(hp); break; case SBD_CMD_DISCONNECT: rv = dr_disconnect(hp); break; case SBD_CMD_STATUS: rv = dr_dev_status(hp); break; case SBD_CMD_GETNCM: hp->h_sbdcmd.cmd_getncm.g_ncm = dr_get_ncm(hp); rv = dr_copyout_iocmd(hp); break; case SBD_CMD_PASSTHRU: rv = dr_pt_ioctl(hp); break; default: cmn_err(CE_WARN, "%s: unknown command (%d)", f, hp->h_cmd); break; } if (hp->h_err != NULL) { rv = -1; } return (rv); } static void dr_assign_board(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; hp->h_err = drmach_board_assign(bp->b_num, &bp->b_id); if (hp->h_err == NULL) { bp->b_assigned = 1; } } static void dr_unassign_board(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; /* * Block out status during unassign. * Not doing cv_wait_sig here as starfire SSP software * ignores unassign failure and removes board from * domain mask causing system panic. * TODO: Change cv_wait to cv_wait_sig when SSP software * handles unassign failure. */ dr_lock_status(bp); hp->h_err = drmach_board_unassign(bp->b_id); if (hp->h_err == NULL) { /* * clear drmachid_t handle; not valid after board unassign */ bp->b_id = 0; bp->b_assigned = 0; } dr_unlock_status(bp); } static void dr_poweron_board(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; hp->h_err = drmach_board_poweron(bp->b_id); } static void dr_poweroff_board(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; hp->h_err = drmach_board_poweroff(bp->b_id); } static void dr_test_board(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; hp->h_err = drmach_board_test(bp->b_id, &hp->h_opts, dr_cmd_flags(hp) & SBD_FLAG_FORCE); } /* * Create and populate the component nodes for a board. Assumes that the * devlists for the board have been initialized. */ static void dr_make_comp_nodes(dr_board_t *bp) { int i; /* * Make nodes for the individual components on the board. * First we need to initialize memory unit data structures of board * structure. */ for (i = 0; i < MAX_MEM_UNITS_PER_BOARD; i++) { dr_mem_unit_t *mp; mp = dr_get_mem_unit(bp, i); dr_init_mem_unit(mp); } /* * Initialize cpu unit data structures. */ for (i = 0; i < MAX_CPU_UNITS_PER_BOARD; i++) { dr_cpu_unit_t *cp; cp = dr_get_cpu_unit(bp, i); dr_init_cpu_unit(cp); } /* * Initialize io unit data structures. */ for (i = 0; i < MAX_IO_UNITS_PER_BOARD; i++) { dr_io_unit_t *ip; ip = dr_get_io_unit(bp, i); dr_init_io_unit(ip); } dr_board_transition(bp, DR_STATE_CONNECTED); bp->b_rstate = SBD_STAT_CONNECTED; bp->b_ostate = SBD_STAT_UNCONFIGURED; bp->b_cond = SBD_COND_OK; (void) drv_getparm(TIME, (void *)&bp->b_time); } /* * Only do work if called to operate on an entire board * which doesn't already have components present. */ static void dr_connect(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; static fn_t f = "dr_connect"; PR_ALL("%s...\n", f); if (DR_DEVS_PRESENT(bp)) { /* * Board already has devices present. */ PR_ALL("%s: devices already present (" DEVSET_FMT_STR ")\n", f, DEVSET_FMT_ARG(DR_DEVS_PRESENT(bp))); return; } hp->h_err = drmach_board_connect(bp->b_id, &hp->h_opts); if (hp->h_err) return; hp->h_err = dr_init_devlists(bp); if (hp->h_err) return; else if (bp->b_ndev == 0) { dr_op_err(CE_WARN, hp, ESBD_EMPTY_BD, bp->b_path); return; } else { dr_make_comp_nodes(bp); return; } /*NOTREACHED*/ } static int dr_disconnect(dr_handle_t *hp) { int i; dr_devset_t devset; dr_board_t *bp = hp->h_bd; static fn_t f = "dr_disconnect"; PR_ALL("%s...\n", f); /* * Only devices which are present, but * unattached can be disconnected. */ devset = hp->h_devset & DR_DEVS_PRESENT(bp) & DR_DEVS_UNATTACHED(bp); if ((devset == 0) && DR_DEVS_PRESENT(bp)) { dr_op_err(CE_IGNORE, hp, ESBD_EMPTY_BD, bp->b_path); return (0); } /* * Block out status during disconnect. */ mutex_enter(&bp->b_slock); while (bp->b_sflags & DR_BSLOCK) { if (cv_wait_sig(&bp->b_scv, &bp->b_slock) == 0) { mutex_exit(&bp->b_slock); return (EINTR); } } bp->b_sflags |= DR_BSLOCK; mutex_exit(&bp->b_slock); hp->h_err = drmach_board_disconnect(bp->b_id, &hp->h_opts); if (hp->h_err && hp->h_err->e_code == EX86_WALK_DEPENDENCY) { /* * Other boards have dependency on this board. No device nodes * have been destroyed so keep current board status. */ goto disconnect_done; } DR_DEVS_DISCONNECT(bp, devset); ASSERT((DR_DEVS_ATTACHED(bp) & devset) == 0); /* * Update per-device state transitions. */ for (i = 0; i < MAX_CPU_UNITS_PER_BOARD; i++) { dr_cpu_unit_t *cp; if (!DEVSET_IN_SET(devset, SBD_COMP_CPU, i)) continue; cp = dr_get_cpu_unit(bp, i); if (dr_disconnect_cpu(cp) == 0) dr_device_transition(&cp->sbc_cm, DR_STATE_EMPTY); else if (cp->sbc_cm.sbdev_error != NULL) DRERR_SET_C(&hp->h_err, &cp->sbc_cm.sbdev_error); ASSERT(cp->sbc_cm.sbdev_error == NULL); } for (i = 0; i < MAX_MEM_UNITS_PER_BOARD; i++) { dr_mem_unit_t *mp; if (!DEVSET_IN_SET(devset, SBD_COMP_MEM, i)) continue; mp = dr_get_mem_unit(bp, i); if (dr_disconnect_mem(mp) == 0) dr_device_transition(&mp->sbm_cm, DR_STATE_EMPTY); else if (mp->sbm_cm.sbdev_error != NULL) DRERR_SET_C(&hp->h_err, &mp->sbm_cm.sbdev_error); ASSERT(mp->sbm_cm.sbdev_error == NULL); } for (i = 0; i < MAX_IO_UNITS_PER_BOARD; i++) { dr_io_unit_t *ip; if (!DEVSET_IN_SET(devset, SBD_COMP_IO, i)) continue; ip = dr_get_io_unit(bp, i); if (dr_disconnect_io(ip) == 0) dr_device_transition(&ip->sbi_cm, DR_STATE_EMPTY); else if (ip->sbi_cm.sbdev_error != NULL) DRERR_SET_C(&hp->h_err, &ip->sbi_cm.sbdev_error); ASSERT(ip->sbi_cm.sbdev_error == NULL); } if (hp->h_err) { /* * For certain errors, drmach_board_disconnect will mark * the board as unusable; in these cases the devtree must * be purged so that status calls will succeed. * XXX * This implementation checks for discrete error codes - * someday, the i/f to drmach_board_disconnect should be * changed to avoid the e_code testing. */ if (hp->h_err->e_code == EX86_DEPROBE) { bp->b_ostate = SBD_STAT_UNCONFIGURED; bp->b_busy = 0; (void) drv_getparm(TIME, (void *)&bp->b_time); if (drmach_board_deprobe(bp->b_id)) goto disconnect_done; else bp->b_ndev = 0; } } /* * Once all the components on a board have been disconnect * the board's state can transition to disconnected and * we can allow the deprobe to take place. */ if (hp->h_err == NULL && DR_DEVS_PRESENT(bp) == 0) { dr_board_transition(bp, DR_STATE_OCCUPIED); bp->b_rstate = SBD_STAT_DISCONNECTED; bp->b_ostate = SBD_STAT_UNCONFIGURED; bp->b_busy = 0; (void) drv_getparm(TIME, (void *)&bp->b_time); hp->h_err = drmach_board_deprobe(bp->b_id); if (hp->h_err == NULL) { bp->b_ndev = 0; dr_board_transition(bp, DR_STATE_EMPTY); bp->b_rstate = SBD_STAT_EMPTY; (void) drv_getparm(TIME, (void *)&bp->b_time); } } disconnect_done: dr_unlock_status(bp); return (0); } /* * Check if a particular device is a valid target of the current * operation. Return 1 if it is a valid target, and 0 otherwise. */ static int dr_dev_is_target(dr_dev_unit_t *dp, int present_only, uint_t uset) { dr_common_unit_t *cp; int is_present; int is_attached; cp = &dp->du_common; /* check if the user requested this device */ if ((uset & (1 << cp->sbdev_unum)) == 0) { return (0); } is_present = DR_DEV_IS_PRESENT(cp) ? 1 : 0; is_attached = DR_DEV_IS_ATTACHED(cp) ? 1 : 0; /* * If the present_only flag is set, a valid target * must be present but not attached. Otherwise, it * must be both present and attached. */ if (is_present && (present_only ^ is_attached)) { /* sanity check */ ASSERT(cp->sbdev_id != (drmachid_t)0); return (1); } return (0); } static void dr_dev_make_list(dr_handle_t *hp, sbd_comp_type_t type, int present_only, dr_common_unit_t ***devlist, int *devnum) { dr_board_t *bp = hp->h_bd; int unum; int nunits; uint_t uset; int len; dr_common_unit_t **list, **wp; switch (type) { case SBD_COMP_CPU: nunits = MAX_CPU_UNITS_PER_BOARD; break; case SBD_COMP_MEM: nunits = MAX_MEM_UNITS_PER_BOARD; break; case SBD_COMP_IO: nunits = MAX_IO_UNITS_PER_BOARD; break; default: nunits = 0; /* catch this in debug kernels */ ASSERT(0); break; } /* allocate list storage. */ len = sizeof (dr_common_unit_t *) * (nunits + 1); list = kmem_zalloc(len, KM_SLEEP); /* record length of storage in first element */ *list++ = (dr_common_unit_t *)(uintptr_t)len; /* get bit array signifying which units are to be involved */ uset = DEVSET_GET_UNITSET(hp->h_devset, type); /* * Adjust the loop count for CPU devices since all cores * in a CMP will be examined in a single iteration. */ if (type == SBD_COMP_CPU) { nunits = MAX_CMP_UNITS_PER_BOARD; } /* populate list */ for (wp = list, unum = 0; unum < nunits; unum++) { dr_dev_unit_t *dp; int core; int cunum; dp = DR_GET_BOARD_DEVUNIT(bp, type, unum); if (dr_dev_is_target(dp, present_only, uset)) { *wp++ = &dp->du_common; } /* further processing is only required for CPUs */ if (type != SBD_COMP_CPU) { continue; } /* * Add any additional cores from the current CPU * device. This is to ensure that all the cores * are grouped together in the device list, and * consequently sequenced together during the actual * operation. */ for (core = 1; core < MAX_CORES_PER_CMP; core++) { cunum = DR_CMP_CORE_UNUM(unum, core); dp = DR_GET_BOARD_DEVUNIT(bp, type, cunum); if (dr_dev_is_target(dp, present_only, uset)) { *wp++ = &dp->du_common; } } } /* calculate number of units in list, return result and list pointer */ *devnum = wp - list; *devlist = list; } static void dr_dev_clean_up(dr_handle_t *hp, dr_common_unit_t **list, int devnum) { int len; int n = 0; dr_common_unit_t *cp, **rp = list; /* * move first encountered unit error to handle if handle * does not yet have a recorded error. */ if (hp->h_err == NULL) { while (n++ < devnum) { cp = *rp++; if (cp->sbdev_error != NULL) { hp->h_err = cp->sbdev_error; cp->sbdev_error = NULL; break; } } } /* free remaining unit errors */ while (n++ < devnum) { cp = *rp++; if (cp->sbdev_error != NULL) { sbd_err_clear(&cp->sbdev_error); cp->sbdev_error = NULL; } } /* free list */ list -= 1; len = (int)(uintptr_t)list[0]; kmem_free(list, len); } static int dr_dev_walk(dr_handle_t *hp, sbd_comp_type_t type, int present_only, int (*pre_op)(dr_handle_t *, dr_common_unit_t **, int), void (*op)(dr_handle_t *, dr_common_unit_t *), int (*post_op)(dr_handle_t *, dr_common_unit_t **, int), void (*board_op)(dr_handle_t *, dr_common_unit_t **, int)) { int devnum, rv; dr_common_unit_t **devlist; dr_dev_make_list(hp, type, present_only, &devlist, &devnum); rv = 0; if (devnum > 0) { rv = (*pre_op)(hp, devlist, devnum); if (rv == 0) { int n; for (n = 0; n < devnum; n++) (*op)(hp, devlist[n]); rv = (*post_op)(hp, devlist, devnum); (*board_op)(hp, devlist, devnum); } } dr_dev_clean_up(hp, devlist, devnum); return (rv); } /*ARGSUSED*/ static int dr_dev_noop(dr_handle_t *hp, dr_common_unit_t **devlist, int devnum) { return (0); } static void dr_attach_update_state(dr_handle_t *hp, dr_common_unit_t **devlist, int devnum) { dr_board_t *bp = hp->h_bd; int i; dr_devset_t devs_unattached, devs_present; static fn_t f = "dr_attach_update_state"; for (i = 0; i < devnum; i++) { dr_common_unit_t *cp = devlist[i]; if (dr_check_unit_attached(cp) == -1) { PR_ALL("%s: ERROR %s not attached\n", f, cp->sbdev_path); continue; } DR_DEV_SET_ATTACHED(cp); dr_device_transition(cp, DR_STATE_CONFIGURED); cp->sbdev_cond = SBD_COND_OK; } devs_present = DR_DEVS_PRESENT(bp); devs_unattached = DR_DEVS_UNATTACHED(bp); switch (bp->b_state) { case DR_STATE_CONNECTED: case DR_STATE_UNCONFIGURED: ASSERT(devs_present); if (devs_unattached == 0) { /* * All devices finally attached. */ dr_board_transition(bp, DR_STATE_CONFIGURED); hp->h_bd->b_ostate = SBD_STAT_CONFIGURED; hp->h_bd->b_rstate = SBD_STAT_CONNECTED; hp->h_bd->b_cond = SBD_COND_OK; hp->h_bd->b_busy = 0; (void) drv_getparm(TIME, (void *)&hp->h_bd->b_time); } else if (devs_present != devs_unattached) { /* * Only some devices are fully attached. */ dr_board_transition(bp, DR_STATE_PARTIAL); hp->h_bd->b_rstate = SBD_STAT_CONNECTED; hp->h_bd->b_ostate = SBD_STAT_CONFIGURED; (void) drv_getparm(TIME, (void *)&hp->h_bd->b_time); } break; case DR_STATE_PARTIAL: ASSERT(devs_present); /* * All devices finally attached. */ if (devs_unattached == 0) { dr_board_transition(bp, DR_STATE_CONFIGURED); hp->h_bd->b_rstate = SBD_STAT_CONNECTED; hp->h_bd->b_ostate = SBD_STAT_CONFIGURED; hp->h_bd->b_cond = SBD_COND_OK; hp->h_bd->b_busy = 0; (void) drv_getparm(TIME, (void *)&hp->h_bd->b_time); } break; default: break; } } static void dr_dev_configure(dr_handle_t *hp) { int rv; rv = dr_dev_walk(hp, SBD_COMP_CPU, 1, dr_pre_attach_cpu, dr_attach_cpu, dr_post_attach_cpu, dr_attach_update_state); if (rv >= 0) { rv = dr_dev_walk(hp, SBD_COMP_MEM, 1, dr_pre_attach_mem, dr_attach_mem, dr_post_attach_mem, dr_attach_update_state); } if (rv >= 0) { (void) dr_dev_walk(hp, SBD_COMP_IO, 1, dr_pre_attach_io, dr_attach_io, dr_post_attach_io, dr_attach_update_state); } } static void dr_release_update_state(dr_handle_t *hp, dr_common_unit_t **devlist, int devnum) { _NOTE(ARGUNUSED(devlist)) _NOTE(ARGUNUSED(devnum)) dr_board_t *bp = hp->h_bd; /* * If the entire board was released and all components * unreferenced then transfer it to the UNREFERENCED state. */ if ((bp->b_state != DR_STATE_RELEASE) && (DR_DEVS_RELEASED(bp) == DR_DEVS_ATTACHED(bp))) { dr_board_transition(bp, DR_STATE_RELEASE); hp->h_bd->b_busy = 1; } } /* called by dr_release_done [below] and dr_release_mem_done [dr_mem.c] */ int dr_release_dev_done(dr_common_unit_t *cp) { if (cp->sbdev_state == DR_STATE_RELEASE) { ASSERT(DR_DEV_IS_RELEASED(cp)); DR_DEV_SET_UNREFERENCED(cp); dr_device_transition(cp, DR_STATE_UNREFERENCED); return (0); } else { return (-1); } } static void dr_release_done(dr_handle_t *hp, dr_common_unit_t *cp) { _NOTE(ARGUNUSED(hp)) dr_board_t *bp; static fn_t f = "dr_release_done"; PR_ALL("%s...\n", f); /* get board pointer & sanity check */ bp = cp->sbdev_bp; ASSERT(bp == hp->h_bd); /* * Transfer the device which just completed its release * to the UNREFERENCED state. */ switch (cp->sbdev_type) { case SBD_COMP_MEM: dr_release_mem_done(cp); break; default: DR_DEV_SET_RELEASED(cp); dr_device_transition(cp, DR_STATE_RELEASE); (void) dr_release_dev_done(cp); break; } /* * If we're not already in the RELEASE state for this * board and we now have released all that were previously * attached, then transfer the board to the RELEASE state. */ if ((bp->b_state == DR_STATE_RELEASE) && (DR_DEVS_RELEASED(bp) == DR_DEVS_UNREFERENCED(bp))) { dr_board_transition(bp, DR_STATE_UNREFERENCED); bp->b_busy = 1; (void) drv_getparm(TIME, (void *)&bp->b_time); } } static void dr_dev_release_mem(dr_handle_t *hp, dr_common_unit_t *dv) { dr_release_mem(dv); dr_release_done(hp, dv); } static void dr_dev_release(dr_handle_t *hp) { int rv; hp->h_bd->b_busy = 1; rv = dr_dev_walk(hp, SBD_COMP_CPU, 0, dr_pre_release_cpu, dr_release_done, dr_dev_noop, dr_release_update_state); if (rv >= 0) { rv = dr_dev_walk(hp, SBD_COMP_MEM, 0, dr_pre_release_mem, dr_dev_release_mem, dr_dev_noop, dr_release_update_state); } if (rv >= 0) { rv = dr_dev_walk(hp, SBD_COMP_IO, 0, dr_pre_release_io, dr_release_done, dr_dev_noop, dr_release_update_state); } if (rv < 0) hp->h_bd->b_busy = 0; /* else, b_busy will be cleared in dr_detach_update_state() */ } static void dr_detach_update_state(dr_handle_t *hp, dr_common_unit_t **devlist, int devnum) { dr_board_t *bp = hp->h_bd; int i; dr_state_t bstate; static fn_t f = "dr_detach_update_state"; for (i = 0; i < devnum; i++) { dr_common_unit_t *cp = devlist[i]; if (dr_check_unit_attached(cp) >= 0) { /* * Device is still attached probably due * to an error. Need to keep track of it. */ PR_ALL("%s: ERROR %s not detached\n", f, cp->sbdev_path); continue; } DR_DEV_CLR_ATTACHED(cp); DR_DEV_CLR_RELEASED(cp); DR_DEV_CLR_UNREFERENCED(cp); dr_device_transition(cp, DR_STATE_UNCONFIGURED); } bstate = bp->b_state; if (bstate != DR_STATE_UNCONFIGURED) { if (DR_DEVS_PRESENT(bp) == DR_DEVS_UNATTACHED(bp)) { /* * All devices are finally detached. */ dr_board_transition(bp, DR_STATE_UNCONFIGURED); hp->h_bd->b_ostate = SBD_STAT_UNCONFIGURED; (void) drv_getparm(TIME, (void *)&hp->h_bd->b_time); } else if ((bp->b_state != DR_STATE_PARTIAL) && (DR_DEVS_ATTACHED(bp) != DR_DEVS_PRESENT(bp))) { /* * Some devices remain attached. */ dr_board_transition(bp, DR_STATE_PARTIAL); (void) drv_getparm(TIME, (void *)&hp->h_bd->b_time); } if ((hp->h_devset & DR_DEVS_UNATTACHED(bp)) == hp->h_devset) hp->h_bd->b_busy = 0; } } static int dr_dev_unconfigure(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; /* * Block out status during IO unconfig. */ mutex_enter(&bp->b_slock); while (bp->b_sflags & DR_BSLOCK) { if (cv_wait_sig(&bp->b_scv, &bp->b_slock) == 0) { mutex_exit(&bp->b_slock); return (EINTR); } } bp->b_sflags |= DR_BSLOCK; mutex_exit(&bp->b_slock); (void) dr_dev_walk(hp, SBD_COMP_IO, 0, dr_pre_detach_io, dr_detach_io, dr_post_detach_io, dr_detach_update_state); dr_unlock_status(bp); (void) dr_dev_walk(hp, SBD_COMP_CPU, 0, dr_pre_detach_cpu, dr_detach_cpu, dr_post_detach_cpu, dr_detach_update_state); (void) dr_dev_walk(hp, SBD_COMP_MEM, 0, dr_pre_detach_mem, dr_detach_mem, dr_post_detach_mem, dr_detach_update_state); return (0); } static void dr_dev_cancel(dr_handle_t *hp) { int i; dr_devset_t devset; dr_board_t *bp = hp->h_bd; static fn_t f = "dr_dev_cancel"; PR_ALL("%s...\n", f); /* * Only devices which have been "released" are * subject to cancellation. */ devset = hp->h_devset & DR_DEVS_RELEASED(bp); /* * Nothing to do for CPUs or IO other than change back * their state. */ for (i = 0; i < MAX_CPU_UNITS_PER_BOARD; i++) { dr_cpu_unit_t *cp; dr_state_t nstate; if (!DEVSET_IN_SET(devset, SBD_COMP_CPU, i)) continue; cp = dr_get_cpu_unit(bp, i); if (dr_cancel_cpu(cp) == 0) nstate = DR_STATE_CONFIGURED; else nstate = DR_STATE_FATAL; dr_device_transition(&cp->sbc_cm, nstate); } for (i = 0; i < MAX_IO_UNITS_PER_BOARD; i++) { dr_io_unit_t *ip; if (!DEVSET_IN_SET(devset, SBD_COMP_IO, i)) continue; ip = dr_get_io_unit(bp, i); dr_device_transition(&ip->sbi_cm, DR_STATE_CONFIGURED); } for (i = 0; i < MAX_MEM_UNITS_PER_BOARD; i++) { dr_mem_unit_t *mp; dr_state_t nstate; if (!DEVSET_IN_SET(devset, SBD_COMP_MEM, i)) continue; mp = dr_get_mem_unit(bp, i); if (dr_cancel_mem(mp) == 0) nstate = DR_STATE_CONFIGURED; else nstate = DR_STATE_FATAL; dr_device_transition(&mp->sbm_cm, nstate); } PR_ALL("%s: unreleasing devset (0x%x)\n", f, (uint_t)devset); DR_DEVS_CANCEL(bp, devset); if (DR_DEVS_RELEASED(bp) == 0) { dr_state_t new_state; /* * If the board no longer has any released devices * than transfer it back to the CONFIG/PARTIAL state. */ if (DR_DEVS_ATTACHED(bp) == DR_DEVS_PRESENT(bp)) new_state = DR_STATE_CONFIGURED; else new_state = DR_STATE_PARTIAL; if (bp->b_state != new_state) { dr_board_transition(bp, new_state); } hp->h_bd->b_ostate = SBD_STAT_CONFIGURED; hp->h_bd->b_busy = 0; (void) drv_getparm(TIME, (void *)&hp->h_bd->b_time); } } static int dr_dev_status(dr_handle_t *hp) { int nstat, mode, ncm, sz, pbsz, pnstat; dr_handle_t *shp; dr_devset_t devset = 0; sbd_stat_t *dstatp = NULL; sbd_dev_stat_t *devstatp; dr_board_t *bp; drmach_status_t pstat; int rv = 0; #ifdef _MULTI_DATAMODEL int sz32 = 0; #endif /* _MULTI_DATAMODEL */ static fn_t f = "dr_dev_status"; PR_ALL("%s...\n", f); mode = hp->h_mode; shp = hp; devset = shp->h_devset; bp = hp->h_bd; /* * Block out disconnect, unassign, IO unconfigure and * devinfo branch creation during status. */ mutex_enter(&bp->b_slock); while (bp->b_sflags & DR_BSLOCK) { if (cv_wait_sig(&bp->b_scv, &bp->b_slock) == 0) { mutex_exit(&bp->b_slock); return (EINTR); } } bp->b_sflags |= DR_BSLOCK; mutex_exit(&bp->b_slock); ncm = 1; if (hp->h_sbdcmd.cmd_cm.c_id.c_type == SBD_COMP_NONE) { if (dr_cmd_flags(hp) & SBD_FLAG_ALLCMP) { /* * Calculate the maximum number of components possible * for a board. This number will be used to size the * status scratch buffer used by board and component * status functions. * This buffer may differ in size from what is provided * by the plugin, since the known component set on the * board may change between the plugin's GETNCM call, and * the status call. Sizing will be adjusted to the plugin's * receptacle buffer at copyout time. */ ncm = MAX_CPU_UNITS_PER_BOARD + MAX_MEM_UNITS_PER_BOARD + MAX_IO_UNITS_PER_BOARD; } else { /* * In the case of c_type == SBD_COMP_NONE, and * SBD_FLAG_ALLCMP not specified, only the board * info is to be returned, no components. */ ncm = 0; devset = 0; } } sz = sizeof (sbd_stat_t); if (ncm > 1) sz += sizeof (sbd_dev_stat_t) * (ncm - 1); pbsz = (int)hp->h_sbdcmd.cmd_stat.s_nbytes; pnstat = (pbsz - sizeof (sbd_stat_t)) / sizeof (sbd_dev_stat_t); /* * s_nbytes describes the size of the preallocated user * buffer into which the application is execting to * receive the sbd_stat_t and sbd_dev_stat_t structures. */ #ifdef _MULTI_DATAMODEL /* * More buffer space is required for the 64bit to 32bit * conversion of data structures. */ if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { sz32 = sizeof (sbd_stat32_t); if (ncm > 1) sz32 += sizeof (sbd_dev_stat32_t) * (ncm - 1); pnstat = (pbsz - sizeof (sbd_stat32_t))/ sizeof (sbd_dev_stat32_t); } sz += sz32; #endif /* * Since one sbd_dev_stat_t is included in the sbd_stat_t, * increment the plugin's nstat count. */ ++pnstat; if (bp->b_id == 0) { bzero(&pstat, sizeof (pstat)); } else { sbd_error_t *err; err = drmach_status(bp->b_id, &pstat); if (err) { DRERR_SET_C(&hp->h_err, &err); rv = EIO; goto status_done; } } dstatp = (sbd_stat_t *)(void *)GETSTRUCT(char, sz); devstatp = &dstatp->s_stat[0]; dstatp->s_board = bp->b_num; /* * Detect transitions between empty and disconnected. */ if (!pstat.empty && (bp->b_rstate == SBD_STAT_EMPTY)) bp->b_rstate = SBD_STAT_DISCONNECTED; else if (pstat.empty && (bp->b_rstate == SBD_STAT_DISCONNECTED)) bp->b_rstate = SBD_STAT_EMPTY; dstatp->s_rstate = bp->b_rstate; dstatp->s_ostate = bp->b_ostate; dstatp->s_cond = bp->b_cond = pstat.cond; dstatp->s_busy = bp->b_busy | pstat.busy; dstatp->s_time = bp->b_time; dstatp->s_power = pstat.powered; dstatp->s_assigned = bp->b_assigned = pstat.assigned; dstatp->s_nstat = nstat = 0; bcopy(&pstat.type[0], &dstatp->s_type[0], SBD_TYPE_LEN); bcopy(&pstat.info[0], &dstatp->s_info[0], SBD_MAX_INFO); devset &= DR_DEVS_PRESENT(bp); if (devset == 0) { /* * No device chosen. */ PR_ALL("%s: no device present\n", f); } if (DEVSET_IN_SET(devset, SBD_COMP_CPU, DEVSET_ANYUNIT)) if ((nstat = dr_cpu_status(hp, devset, devstatp)) > 0) { dstatp->s_nstat += nstat; devstatp += nstat; } if (DEVSET_IN_SET(devset, SBD_COMP_MEM, DEVSET_ANYUNIT)) if ((nstat = dr_mem_status(hp, devset, devstatp)) > 0) { dstatp->s_nstat += nstat; devstatp += nstat; } if (DEVSET_IN_SET(devset, SBD_COMP_IO, DEVSET_ANYUNIT)) if ((nstat = dr_io_status(hp, devset, devstatp)) > 0) { dstatp->s_nstat += nstat; devstatp += nstat; } /* * Due to a possible change in number of components between * the time of plugin's GETNCM call and now, there may be * more or less components than the plugin's buffer can * hold. Adjust s_nstat accordingly. */ dstatp->s_nstat = dstatp->s_nstat > pnstat ? pnstat : dstatp->s_nstat; #ifdef _MULTI_DATAMODEL if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { int i, j; sbd_stat32_t *dstat32p; dstat32p = (sbd_stat32_t *)devstatp; /* Alignment Paranoia */ if ((ulong_t)dstat32p & 0x1) { PR_ALL("%s: alignment: sz=0x%lx dstat32p=0x%p\n", f, sizeof (sbd_stat32_t), (void *)dstat32p); DR_OP_INTERNAL_ERROR(hp); rv = EINVAL; goto status_done; } /* paranoia: detect buffer overrun */ if ((caddr_t)&dstat32p->s_stat[dstatp->s_nstat] > ((caddr_t)dstatp) + sz) { DR_OP_INTERNAL_ERROR(hp); rv = EINVAL; goto status_done; } /* copy sbd_stat_t structure members */ #define _SBD_STAT(t, m) dstat32p->m = (t)dstatp->m _SBD_STAT(int32_t, s_board); _SBD_STAT(int32_t, s_rstate); _SBD_STAT(int32_t, s_ostate); _SBD_STAT(int32_t, s_cond); _SBD_STAT(int32_t, s_busy); _SBD_STAT(time32_t, s_time); _SBD_STAT(uint32_t, s_power); _SBD_STAT(uint32_t, s_assigned); _SBD_STAT(int32_t, s_nstat); bcopy(&dstatp->s_type[0], &dstat32p->s_type[0], SBD_TYPE_LEN); bcopy(&dstatp->s_info[0], &dstat32p->s_info[0], SBD_MAX_INFO); #undef _SBD_STAT for (i = 0; i < dstatp->s_nstat; i++) { sbd_dev_stat_t *dsp = &dstatp->s_stat[i]; sbd_dev_stat32_t *ds32p = &dstat32p->s_stat[i]; #define _SBD_DEV_STAT(t, m) ds32p->m = (t)dsp->m /* copy sbd_cm_stat_t structure members */ _SBD_DEV_STAT(int32_t, ds_type); _SBD_DEV_STAT(int32_t, ds_unit); _SBD_DEV_STAT(int32_t, ds_ostate); _SBD_DEV_STAT(int32_t, ds_cond); _SBD_DEV_STAT(int32_t, ds_busy); _SBD_DEV_STAT(int32_t, ds_suspend); _SBD_DEV_STAT(time32_t, ds_time); bcopy(&dsp->ds_name[0], &ds32p->ds_name[0], OBP_MAXPROPNAME); switch (dsp->ds_type) { case SBD_COMP_CPU: /* copy sbd_cpu_stat_t structure members */ _SBD_DEV_STAT(int32_t, d_cpu.cs_isbootproc); _SBD_DEV_STAT(int32_t, d_cpu.cs_cpuid); _SBD_DEV_STAT(int32_t, d_cpu.cs_speed); _SBD_DEV_STAT(int32_t, d_cpu.cs_ecache); break; case SBD_COMP_MEM: /* copy sbd_mem_stat_t structure members */ _SBD_DEV_STAT(int32_t, d_mem.ms_interleave); _SBD_DEV_STAT(uint32_t, d_mem.ms_basepfn); _SBD_DEV_STAT(uint32_t, d_mem.ms_totpages); _SBD_DEV_STAT(uint32_t, d_mem.ms_detpages); _SBD_DEV_STAT(int32_t, d_mem.ms_pageslost); _SBD_DEV_STAT(uint32_t, d_mem.ms_managed_pages); _SBD_DEV_STAT(uint32_t, d_mem.ms_noreloc_pages); _SBD_DEV_STAT(uint32_t, d_mem.ms_noreloc_first); _SBD_DEV_STAT(uint32_t, d_mem.ms_noreloc_last); _SBD_DEV_STAT(int32_t, d_mem.ms_cage_enabled); _SBD_DEV_STAT(int32_t, d_mem.ms_peer_is_target); bcopy(&dsp->d_mem.ms_peer_ap_id[0], &ds32p->d_mem.ms_peer_ap_id[0], sizeof (ds32p->d_mem.ms_peer_ap_id)); break; case SBD_COMP_IO: /* copy sbd_io_stat_t structure members */ _SBD_DEV_STAT(int32_t, d_io.is_referenced); _SBD_DEV_STAT(int32_t, d_io.is_unsafe_count); for (j = 0; j < SBD_MAX_UNSAFE; j++) _SBD_DEV_STAT(int32_t, d_io.is_unsafe_list[j]); bcopy(&dsp->d_io.is_pathname[0], &ds32p->d_io.is_pathname[0], MAXPATHLEN); break; case SBD_COMP_CMP: /* copy sbd_cmp_stat_t structure members */ bcopy(&dsp->d_cmp.ps_cpuid[0], &ds32p->d_cmp.ps_cpuid[0], sizeof (ds32p->d_cmp.ps_cpuid)); _SBD_DEV_STAT(int32_t, d_cmp.ps_ncores); _SBD_DEV_STAT(int32_t, d_cmp.ps_speed); _SBD_DEV_STAT(int32_t, d_cmp.ps_ecache); break; default: cmn_err(CE_WARN, "%s: unknown dev type (%d)", f, (int)dsp->ds_type); rv = EFAULT; goto status_done; } #undef _SBD_DEV_STAT } if (ddi_copyout((void *)dstat32p, hp->h_sbdcmd.cmd_stat.s_statp, pbsz, mode) != 0) { cmn_err(CE_WARN, "%s: failed to copyout status " "for board %d", f, bp->b_num); rv = EFAULT; goto status_done; } } else #endif /* _MULTI_DATAMODEL */ if (ddi_copyout((void *)dstatp, hp->h_sbdcmd.cmd_stat.s_statp, pbsz, mode) != 0) { cmn_err(CE_WARN, "%s: failed to copyout status for board %d", f, bp->b_num); rv = EFAULT; goto status_done; } status_done: if (dstatp != NULL) FREESTRUCT(dstatp, char, sz); dr_unlock_status(bp); return (rv); } static int dr_get_ncm(dr_handle_t *hp) { int i; int ncm = 0; dr_devset_t devset; devset = DR_DEVS_PRESENT(hp->h_bd); if (hp->h_sbdcmd.cmd_cm.c_id.c_type != SBD_COMP_NONE) devset &= DEVSET(hp->h_sbdcmd.cmd_cm.c_id.c_type, DEVSET_ANYUNIT); /* * Handle CPUs first to deal with possible CMP * devices. If the CPU is a CMP, we need to only * increment ncm once even if there are multiple * cores for that CMP present in the devset. */ for (i = 0; i < MAX_CMP_UNITS_PER_BOARD; i++) { if (devset & DEVSET(SBD_COMP_CMP, i)) { ncm++; } } /* eliminate the CPU information from the devset */ devset &= ~(DEVSET(SBD_COMP_CMP, DEVSET_ANYUNIT)); for (i = 0; i < (sizeof (dr_devset_t) * 8); i++) { ncm += devset & 0x1; devset >>= 1; } return (ncm); } /* used by dr_mem.c */ /* TODO: eliminate dr_boardlist */ dr_board_t * dr_lookup_board(int board_num) { dr_board_t *bp; ASSERT(board_num >= 0 && board_num < MAX_BOARDS); bp = &dr_boardlist[board_num]; ASSERT(bp->b_num == board_num); return (bp); } static dr_dev_unit_t * dr_get_dev_unit(dr_board_t *bp, sbd_comp_type_t nt, int unit_num) { dr_dev_unit_t *dp; dp = DR_GET_BOARD_DEVUNIT(bp, nt, unit_num); ASSERT(dp->du_common.sbdev_bp == bp); ASSERT(dp->du_common.sbdev_unum == unit_num); ASSERT(dp->du_common.sbdev_type == nt); return (dp); } dr_cpu_unit_t * dr_get_cpu_unit(dr_board_t *bp, int unit_num) { dr_dev_unit_t *dp; ASSERT(unit_num >= 0 && unit_num < MAX_CPU_UNITS_PER_BOARD); dp = dr_get_dev_unit(bp, SBD_COMP_CPU, unit_num); return (&dp->du_cpu); } dr_mem_unit_t * dr_get_mem_unit(dr_board_t *bp, int unit_num) { dr_dev_unit_t *dp; ASSERT(unit_num >= 0 && unit_num < MAX_MEM_UNITS_PER_BOARD); dp = dr_get_dev_unit(bp, SBD_COMP_MEM, unit_num); return (&dp->du_mem); } dr_io_unit_t * dr_get_io_unit(dr_board_t *bp, int unit_num) { dr_dev_unit_t *dp; ASSERT(unit_num >= 0 && unit_num < MAX_IO_UNITS_PER_BOARD); dp = dr_get_dev_unit(bp, SBD_COMP_IO, unit_num); return (&dp->du_io); } dr_common_unit_t * dr_get_common_unit(dr_board_t *bp, sbd_comp_type_t nt, int unum) { dr_dev_unit_t *dp; dp = dr_get_dev_unit(bp, nt, unum); return (&dp->du_common); } static dr_devset_t dr_dev2devset(sbd_comp_id_t *cid) { static fn_t f = "dr_dev2devset"; dr_devset_t devset; int unit = cid->c_unit; switch (cid->c_type) { case SBD_COMP_NONE: devset = DEVSET(SBD_COMP_CPU, DEVSET_ANYUNIT); devset |= DEVSET(SBD_COMP_MEM, DEVSET_ANYUNIT); devset |= DEVSET(SBD_COMP_IO, DEVSET_ANYUNIT); PR_ALL("%s: COMP_NONE devset = " DEVSET_FMT_STR "\n", f, DEVSET_FMT_ARG(devset)); break; case SBD_COMP_CPU: if ((unit > MAX_CPU_UNITS_PER_BOARD) || (unit < 0)) { cmn_err(CE_WARN, "%s: invalid cpu unit# = %d", f, unit); devset = 0; } else { /* * Generate a devset that includes all the * cores of a CMP device. If this is not a * CMP, the extra cores will be eliminated * later since they are not present. This is * also true for CMP devices that do not have * all cores active. */ devset = DEVSET(SBD_COMP_CMP, unit); } PR_ALL("%s: CPU devset = " DEVSET_FMT_STR "\n", f, DEVSET_FMT_ARG(devset)); break; case SBD_COMP_MEM: if (unit == SBD_NULL_UNIT) { unit = 0; cid->c_unit = 0; } if ((unit > MAX_MEM_UNITS_PER_BOARD) || (unit < 0)) { cmn_err(CE_WARN, "%s: invalid mem unit# = %d", f, unit); devset = 0; } else devset = DEVSET(cid->c_type, unit); PR_ALL("%s: MEM devset = " DEVSET_FMT_STR "\n", f, DEVSET_FMT_ARG(devset)); break; case SBD_COMP_IO: if ((unit > MAX_IO_UNITS_PER_BOARD) || (unit < 0)) { cmn_err(CE_WARN, "%s: invalid io unit# = %d", f, unit); devset = 0; } else devset = DEVSET(cid->c_type, unit); PR_ALL("%s: IO devset = " DEVSET_FMT_STR "\n", f, DEVSET_FMT_ARG(devset)); break; default: case SBD_COMP_UNKNOWN: devset = 0; break; } return (devset); } /* * Converts a dynamic attachment point name to a SBD_COMP_* type. * Returns SDB_COMP_UNKNOWN if name is not recognized. */ static int dr_dev_type_to_nt(char *type) { int i; for (i = 0; dr_devattr[i].s_nodetype != SBD_COMP_UNKNOWN; i++) if (strcmp(dr_devattr[i].s_devtype, type) == 0) break; return (dr_devattr[i].s_nodetype); } /* * Converts a SBD_COMP_* type to a dynamic attachment point name. * Return NULL if SBD_COMP_ type is not recognized. */ char * dr_nt_to_dev_type(int nt) { int i; for (i = 0; dr_devattr[i].s_nodetype != SBD_COMP_UNKNOWN; i++) if (dr_devattr[i].s_nodetype == nt) break; return (dr_devattr[i].s_devtype); } /* * State transition policy is that if there is some component for which * the state transition is valid, then let it through. The exception is * SBD_CMD_DISCONNECT. On disconnect, the state transition must be valid * for ALL components. * Returns the state that is in error, if any. */ static int dr_check_transition(dr_board_t *bp, dr_devset_t *devsetp, struct dr_state_trans *transp, int cmd) { int s, ut; int state_err = 0; dr_devset_t devset; dr_common_unit_t *cp; static fn_t f = "dr_check_transition"; devset = *devsetp; if (DEVSET_IN_SET(devset, SBD_COMP_CPU, DEVSET_ANYUNIT)) { for (ut = 0; ut < MAX_CPU_UNITS_PER_BOARD; ut++) { if (DEVSET_IN_SET(devset, SBD_COMP_CPU, ut) == 0) continue; cp = dr_get_common_unit(bp, SBD_COMP_CPU, ut); s = (int)cp->sbdev_state; if (!DR_DEV_IS_PRESENT(cp)) { DEVSET_DEL(devset, SBD_COMP_CPU, ut); } else { if (transp->x_op[s].x_rv) { if (!state_err) state_err = s; DEVSET_DEL(devset, SBD_COMP_CPU, ut); } } } } if (DEVSET_IN_SET(devset, SBD_COMP_MEM, DEVSET_ANYUNIT)) { for (ut = 0; ut < MAX_MEM_UNITS_PER_BOARD; ut++) { if (DEVSET_IN_SET(devset, SBD_COMP_MEM, ut) == 0) continue; cp = dr_get_common_unit(bp, SBD_COMP_MEM, ut); s = (int)cp->sbdev_state; if (!DR_DEV_IS_PRESENT(cp)) { DEVSET_DEL(devset, SBD_COMP_MEM, ut); } else { if (transp->x_op[s].x_rv) { if (!state_err) state_err = s; DEVSET_DEL(devset, SBD_COMP_MEM, ut); } } } } if (DEVSET_IN_SET(devset, SBD_COMP_IO, DEVSET_ANYUNIT)) { for (ut = 0; ut < MAX_IO_UNITS_PER_BOARD; ut++) { if (DEVSET_IN_SET(devset, SBD_COMP_IO, ut) == 0) continue; cp = dr_get_common_unit(bp, SBD_COMP_IO, ut); s = (int)cp->sbdev_state; if (!DR_DEV_IS_PRESENT(cp)) { DEVSET_DEL(devset, SBD_COMP_IO, ut); } else { if (transp->x_op[s].x_rv) { if (!state_err) state_err = s; DEVSET_DEL(devset, SBD_COMP_IO, ut); } } } } PR_ALL("%s: requested devset = 0x%x, final devset = 0x%x\n", f, (uint_t)*devsetp, (uint_t)devset); *devsetp = devset; /* * If there are some remaining components for which * this state transition is valid, then allow them * through, otherwise if none are left then return * the state error. The exception is SBD_CMD_DISCONNECT. * On disconnect, the state transition must be valid for ALL * components. */ if (cmd == SBD_CMD_DISCONNECT) return (state_err); return (devset ? 0 : state_err); } void dr_device_transition(dr_common_unit_t *cp, dr_state_t st) { PR_STATE("%s STATE %s(%d) -> %s(%d)\n", cp->sbdev_path, state_str[cp->sbdev_state], cp->sbdev_state, state_str[st], st); cp->sbdev_state = st; if (st == DR_STATE_CONFIGURED) { cp->sbdev_ostate = SBD_STAT_CONFIGURED; if (cp->sbdev_bp->b_ostate != SBD_STAT_CONFIGURED) { cp->sbdev_bp->b_ostate = SBD_STAT_CONFIGURED; (void) drv_getparm(TIME, (void *) &cp->sbdev_bp->b_time); } } else cp->sbdev_ostate = SBD_STAT_UNCONFIGURED; (void) drv_getparm(TIME, (void *) &cp->sbdev_time); } static void dr_board_transition(dr_board_t *bp, dr_state_t st) { PR_STATE("BOARD %d STATE: %s(%d) -> %s(%d)\n", bp->b_num, state_str[bp->b_state], bp->b_state, state_str[st], st); bp->b_state = st; } void dr_op_err(int ce, dr_handle_t *hp, int code, char *fmt, ...) { sbd_error_t *err; va_list args; va_start(args, fmt); err = drerr_new_v(code, fmt, args); va_end(args); if (ce != CE_IGNORE) sbd_err_log(err, ce); DRERR_SET_C(&hp->h_err, &err); } void dr_dev_err(int ce, dr_common_unit_t *cp, int code) { sbd_error_t *err; err = drerr_new(0, code, cp->sbdev_path, NULL); if (ce != CE_IGNORE) sbd_err_log(err, ce); DRERR_SET_C(&cp->sbdev_error, &err); } /* * A callback routine. Called from the drmach layer as a result of * call to drmach_board_find_devices from dr_init_devlists. */ static sbd_error_t * dr_dev_found(void *data, const char *name, int unum, drmachid_t id) { dr_board_t *bp = data; dr_dev_unit_t *dp; int nt; static fn_t f = "dr_dev_found"; PR_ALL("%s (board = %d, name = %s, unum = %d, id = %p)...\n", f, bp->b_num, name, unum, id); nt = dr_dev_type_to_nt((char *)name); if (nt == SBD_COMP_UNKNOWN) { /* * this should not happen. When it does, it indicates * a missmatch in devices supported by the drmach layer * vs devices supported by this layer. */ return (DR_INTERNAL_ERROR()); } dp = DR_GET_BOARD_DEVUNIT(bp, nt, unum); /* sanity check */ ASSERT(dp->du_common.sbdev_bp == bp); ASSERT(dp->du_common.sbdev_unum == unum); ASSERT(dp->du_common.sbdev_type == nt); /* render dynamic attachment point path of this unit */ (void) snprintf(dp->du_common.sbdev_path, sizeof (dp->du_common.sbdev_path), "%s::%s%d", bp->b_path, name, DR_UNUM2SBD_UNUM(unum, nt)); dp->du_common.sbdev_id = id; DR_DEV_SET_PRESENT(&dp->du_common); bp->b_ndev++; return (NULL); } static sbd_error_t * dr_init_devlists(dr_board_t *bp) { int i; sbd_error_t *err; dr_dev_unit_t *dp; static fn_t f = "dr_init_devlists"; PR_ALL("%s (%s)...\n", f, bp->b_path); /* sanity check */ ASSERT(bp->b_ndev == 0); DR_DEVS_DISCONNECT(bp, (uint_t)-1); /* * This routine builds the board's devlist and initializes * the common portion of the unit data structures. * Note: because the common portion is considered * uninitialized, the dr_get_*_unit() routines can not * be used. */ /* * Clear out old entries, if any. */ for (i = 0; i < MAX_CPU_UNITS_PER_BOARD; i++) { dp = DR_GET_BOARD_DEVUNIT(bp, SBD_COMP_CPU, i); bzero(dp, sizeof (*dp)); dp->du_common.sbdev_bp = bp; dp->du_common.sbdev_unum = i; dp->du_common.sbdev_type = SBD_COMP_CPU; } for (i = 0; i < MAX_MEM_UNITS_PER_BOARD; i++) { dp = DR_GET_BOARD_DEVUNIT(bp, SBD_COMP_MEM, i); bzero(dp, sizeof (*dp)); dp->du_common.sbdev_bp = bp; dp->du_common.sbdev_unum = i; dp->du_common.sbdev_type = SBD_COMP_MEM; } for (i = 0; i < MAX_IO_UNITS_PER_BOARD; i++) { dp = DR_GET_BOARD_DEVUNIT(bp, SBD_COMP_IO, i); bzero(dp, sizeof (*dp)); dp->du_common.sbdev_bp = bp; dp->du_common.sbdev_unum = i; dp->du_common.sbdev_type = SBD_COMP_IO; } err = NULL; if (bp->b_id) { /* find devices on this board */ err = drmach_board_find_devices( bp->b_id, bp, dr_dev_found); } return (err); } /* * Return the unit number of the respective drmachid if * it's found to be attached. */ static int dr_check_unit_attached(dr_common_unit_t *cp) { int rv = 0; processorid_t cpuid; uint64_t basepa, endpa; struct memlist *ml; extern struct memlist *phys_install; sbd_error_t *err; int yes; static fn_t f = "dr_check_unit_attached"; switch (cp->sbdev_type) { case SBD_COMP_CPU: err = drmach_cpu_get_id(cp->sbdev_id, &cpuid); if (err) { DRERR_SET_C(&cp->sbdev_error, &err); rv = -1; break; } mutex_enter(&cpu_lock); if (cpu_get(cpuid) == NULL) rv = -1; mutex_exit(&cpu_lock); break; case SBD_COMP_MEM: err = drmach_mem_get_slice_info(cp->sbdev_id, &basepa, &endpa, NULL); if (err) { DRERR_SET_C(&cp->sbdev_error, &err); rv = -1; break; } /* * Check if base address is in phys_install. */ memlist_read_lock(); for (ml = phys_install; ml; ml = ml->ml_next) if ((endpa <= ml->ml_address) || (basepa >= (ml->ml_address + ml->ml_size))) continue; else break; memlist_read_unlock(); if (ml == NULL) rv = -1; break; case SBD_COMP_IO: err = drmach_io_is_attached(cp->sbdev_id, &yes); if (err) { DRERR_SET_C(&cp->sbdev_error, &err); rv = -1; break; } else if (!yes) rv = -1; break; default: PR_ALL("%s: unexpected nodetype(%d) for id 0x%p\n", f, cp->sbdev_type, cp->sbdev_id); rv = -1; break; } return (rv); } /* * See if drmach recognizes the passthru command. DRMACH expects the * id to identify the thing to which the command is being applied. Using * nonsense SBD terms, that information has been perversely encoded in the * c_id member of the sbd_cmd_t structure. This logic reads those tea * leaves, finds the associated drmach id, then calls drmach to process * the passthru command. */ static int dr_pt_try_drmach(dr_handle_t *hp) { dr_board_t *bp = hp->h_bd; sbd_comp_id_t *comp_id = &hp->h_sbdcmd.cmd_cm.c_id; drmachid_t id; if (comp_id->c_type == SBD_COMP_NONE) { id = bp->b_id; } else { sbd_comp_type_t nt; nt = dr_dev_type_to_nt(comp_id->c_name); if (nt == SBD_COMP_UNKNOWN) { dr_op_err(CE_IGNORE, hp, ESBD_INVAL, comp_id->c_name); id = 0; } else { /* pt command applied to dynamic attachment point */ dr_common_unit_t *cp; cp = dr_get_common_unit(bp, nt, comp_id->c_unit); id = cp->sbdev_id; } } if (hp->h_err == NULL) hp->h_err = drmach_passthru(id, &hp->h_opts); return (hp->h_err == NULL ? 0 : -1); } static int dr_pt_ioctl(dr_handle_t *hp) { int cmd, rv, len; int32_t sz; int found; char *copts; static fn_t f = "dr_pt_ioctl"; PR_ALL("%s...\n", f); sz = hp->h_opts.size; copts = hp->h_opts.copts; if (sz == 0 || copts == (char *)NULL) { cmn_err(CE_WARN, "%s: invalid passthru args", f); return (EINVAL); } found = 0; for (cmd = 0; cmd < (sizeof (pt_arr) / sizeof (pt_arr[0])); cmd++) { len = strlen(pt_arr[cmd].pt_name); found = (strncmp(pt_arr[cmd].pt_name, copts, len) == 0); if (found) break; } if (found) rv = (*pt_arr[cmd].pt_func)(hp); else rv = dr_pt_try_drmach(hp); return (rv); } /* * Called at driver load time to determine the state and condition * of an existing board in the system. */ static void dr_board_discovery(dr_board_t *bp) { int i; dr_devset_t devs_lost, devs_attached = 0; dr_cpu_unit_t *cp; dr_mem_unit_t *mp; dr_io_unit_t *ip; static fn_t f = "dr_board_discovery"; if (DR_DEVS_PRESENT(bp) == 0) { PR_ALL("%s: board %d has no devices present\n", f, bp->b_num); return; } /* * Check for existence of cpus. */ for (i = 0; i < MAX_CPU_UNITS_PER_BOARD; i++) { cp = dr_get_cpu_unit(bp, i); if (!DR_DEV_IS_PRESENT(&cp->sbc_cm)) continue; if (dr_check_unit_attached(&cp->sbc_cm) >= 0) { DR_DEV_SET_ATTACHED(&cp->sbc_cm); DEVSET_ADD(devs_attached, SBD_COMP_CPU, i); PR_ALL("%s: board %d, cpu-unit %d - attached\n", f, bp->b_num, i); } dr_init_cpu_unit(cp); } /* * Check for existence of memory. */ for (i = 0; i < MAX_MEM_UNITS_PER_BOARD; i++) { mp = dr_get_mem_unit(bp, i); if (!DR_DEV_IS_PRESENT(&mp->sbm_cm)) continue; if (dr_check_unit_attached(&mp->sbm_cm) >= 0) { DR_DEV_SET_ATTACHED(&mp->sbm_cm); DEVSET_ADD(devs_attached, SBD_COMP_MEM, i); PR_ALL("%s: board %d, mem-unit %d - attached\n", f, bp->b_num, i); } dr_init_mem_unit(mp); } /* * Check for i/o state. */ for (i = 0; i < MAX_IO_UNITS_PER_BOARD; i++) { ip = dr_get_io_unit(bp, i); if (!DR_DEV_IS_PRESENT(&ip->sbi_cm)) continue; if (dr_check_unit_attached(&ip->sbi_cm) >= 0) { /* * Found it! */ DR_DEV_SET_ATTACHED(&ip->sbi_cm); DEVSET_ADD(devs_attached, SBD_COMP_IO, i); PR_ALL("%s: board %d, io-unit %d - attached\n", f, bp->b_num, i); } dr_init_io_unit(ip); } DR_DEVS_CONFIGURE(bp, devs_attached); if (devs_attached && ((devs_lost = DR_DEVS_UNATTACHED(bp)) != 0)) { int ut; /* * It is not legal on board discovery to have a * board that is only partially attached. A board * is either all attached or all connected. If a * board has at least one attached device, then * the the remaining devices, if any, must have * been lost or disconnected. These devices can * only be recovered by a full attach from scratch. * Note that devices previously in the unreferenced * state are subsequently lost until the next full * attach. This is necessary since the driver unload * that must have occurred would have wiped out the * information necessary to re-configure the device * back online, e.g. memlist. */ PR_ALL("%s: some devices LOST (" DEVSET_FMT_STR ")...\n", f, DEVSET_FMT_ARG(devs_lost)); for (ut = 0; ut < MAX_CPU_UNITS_PER_BOARD; ut++) { if (!DEVSET_IN_SET(devs_lost, SBD_COMP_CPU, ut)) continue; cp = dr_get_cpu_unit(bp, ut); dr_device_transition(&cp->sbc_cm, DR_STATE_EMPTY); } for (ut = 0; ut < MAX_MEM_UNITS_PER_BOARD; ut++) { if (!DEVSET_IN_SET(devs_lost, SBD_COMP_MEM, ut)) continue; mp = dr_get_mem_unit(bp, ut); dr_device_transition(&mp->sbm_cm, DR_STATE_EMPTY); } for (ut = 0; ut < MAX_IO_UNITS_PER_BOARD; ut++) { if (!DEVSET_IN_SET(devs_lost, SBD_COMP_IO, ut)) continue; ip = dr_get_io_unit(bp, ut); dr_device_transition(&ip->sbi_cm, DR_STATE_EMPTY); } DR_DEVS_DISCONNECT(bp, devs_lost); } } static int dr_board_init(dr_board_t *bp, dev_info_t *dip, int bd) { sbd_error_t *err; mutex_init(&bp->b_lock, NULL, MUTEX_DRIVER, NULL); mutex_init(&bp->b_slock, NULL, MUTEX_DRIVER, NULL); cv_init(&bp->b_scv, NULL, CV_DRIVER, NULL); bp->b_rstate = SBD_STAT_EMPTY; bp->b_ostate = SBD_STAT_UNCONFIGURED; bp->b_cond = SBD_COND_UNKNOWN; (void) drv_getparm(TIME, (void *)&bp->b_time); (void) drmach_board_lookup(bd, &bp->b_id); bp->b_num = bd; bp->b_dip = dip; bp->b_dev[DEVSET_NIX(SBD_COMP_CPU)] = GETSTRUCT(dr_dev_unit_t, MAX_CPU_UNITS_PER_BOARD); bp->b_dev[DEVSET_NIX(SBD_COMP_MEM)] = GETSTRUCT(dr_dev_unit_t, MAX_MEM_UNITS_PER_BOARD); bp->b_dev[DEVSET_NIX(SBD_COMP_IO)] = GETSTRUCT(dr_dev_unit_t, MAX_IO_UNITS_PER_BOARD); /* * Initialize the devlists */ err = dr_init_devlists(bp); if (err) { sbd_err_clear(&err); dr_board_destroy(bp); return (-1); } else if (bp->b_ndev == 0) { dr_board_transition(bp, DR_STATE_EMPTY); } else { /* * Couldn't have made it down here without * having found at least one device. */ ASSERT(DR_DEVS_PRESENT(bp) != 0); /* * Check the state of any possible devices on the * board. */ dr_board_discovery(bp); bp->b_assigned = 1; if (DR_DEVS_UNATTACHED(bp) == 0) { /* * The board has no unattached devices, therefore * by reason of insanity it must be configured! */ dr_board_transition(bp, DR_STATE_CONFIGURED); bp->b_ostate = SBD_STAT_CONFIGURED; bp->b_rstate = SBD_STAT_CONNECTED; bp->b_cond = SBD_COND_OK; (void) drv_getparm(TIME, (void *)&bp->b_time); } else if (DR_DEVS_ATTACHED(bp)) { dr_board_transition(bp, DR_STATE_PARTIAL); bp->b_ostate = SBD_STAT_CONFIGURED; bp->b_rstate = SBD_STAT_CONNECTED; bp->b_cond = SBD_COND_OK; (void) drv_getparm(TIME, (void *)&bp->b_time); } else { dr_board_transition(bp, DR_STATE_CONNECTED); bp->b_rstate = SBD_STAT_CONNECTED; (void) drv_getparm(TIME, (void *)&bp->b_time); } } return (0); } static void dr_board_destroy(dr_board_t *bp) { PR_ALL("dr_board_destroy: num %d, path %s\n", bp->b_num, bp->b_path); dr_board_transition(bp, DR_STATE_EMPTY); bp->b_rstate = SBD_STAT_EMPTY; (void) drv_getparm(TIME, (void *)&bp->b_time); /* * Free up MEM unit structs. */ FREESTRUCT(bp->b_dev[DEVSET_NIX(SBD_COMP_MEM)], dr_dev_unit_t, MAX_MEM_UNITS_PER_BOARD); bp->b_dev[DEVSET_NIX(SBD_COMP_MEM)] = NULL; /* * Free up CPU unit structs. */ FREESTRUCT(bp->b_dev[DEVSET_NIX(SBD_COMP_CPU)], dr_dev_unit_t, MAX_CPU_UNITS_PER_BOARD); bp->b_dev[DEVSET_NIX(SBD_COMP_CPU)] = NULL; /* * Free up IO unit structs. */ FREESTRUCT(bp->b_dev[DEVSET_NIX(SBD_COMP_IO)], dr_dev_unit_t, MAX_IO_UNITS_PER_BOARD); bp->b_dev[DEVSET_NIX(SBD_COMP_IO)] = NULL; mutex_destroy(&bp->b_lock); mutex_destroy(&bp->b_slock); cv_destroy(&bp->b_scv); /* * Reset the board structure to its initial state, otherwise it will * cause trouble on the next call to dr_board_init() for the same board. * dr_board_init() may be called multiple times for the same board * if DR driver fails to initialize some boards. */ bzero(bp, sizeof (*bp)); } void dr_lock_status(dr_board_t *bp) { mutex_enter(&bp->b_slock); while (bp->b_sflags & DR_BSLOCK) cv_wait(&bp->b_scv, &bp->b_slock); bp->b_sflags |= DR_BSLOCK; mutex_exit(&bp->b_slock); } void dr_unlock_status(dr_board_t *bp) { mutex_enter(&bp->b_slock); bp->b_sflags &= ~DR_BSLOCK; cv_signal(&bp->b_scv); mutex_exit(&bp->b_slock); } /* * Extract flags passed via ioctl. */ int dr_cmd_flags(dr_handle_t *hp) { return (hp->h_sbdcmd.cmd_cm.c_flags); }