1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * Data-Link Driver 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <sys/types.h> 34*0Sstevel@tonic-gate #include <sys/stream.h> 35*0Sstevel@tonic-gate #include <sys/conf.h> 36*0Sstevel@tonic-gate #include <sys/stat.h> 37*0Sstevel@tonic-gate #include <sys/ddi.h> 38*0Sstevel@tonic-gate #include <sys/sunddi.h> 39*0Sstevel@tonic-gate #include <sys/dlpi.h> 40*0Sstevel@tonic-gate #include <sys/modctl.h> 41*0Sstevel@tonic-gate #include <sys/kmem.h> 42*0Sstevel@tonic-gate #include <inet/common.h> 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #include <sys/dls.h> 45*0Sstevel@tonic-gate #include <sys/dld.h> 46*0Sstevel@tonic-gate #include <sys/dld_impl.h> 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate static void drv_init(void); 49*0Sstevel@tonic-gate static int drv_fini(void); 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static int drv_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 52*0Sstevel@tonic-gate static int drv_attach(dev_info_t *, ddi_attach_cmd_t); 53*0Sstevel@tonic-gate static int drv_detach(dev_info_t *, ddi_detach_cmd_t); 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate static int drv_open(queue_t *, dev_t *, int, int, cred_t *); 56*0Sstevel@tonic-gate static int drv_close(queue_t *); 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate static void drv_uw_put(queue_t *, mblk_t *); 59*0Sstevel@tonic-gate static void drv_uw_srv(queue_t *); 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate dev_info_t *dld_dip; /* dev_info_t for the driver */ 62*0Sstevel@tonic-gate uint32_t dld_opt; /* Global options */ 63*0Sstevel@tonic-gate boolean_t dld_open; /* Flag to note that the control */ 64*0Sstevel@tonic-gate /* node is open */ 65*0Sstevel@tonic-gate boolean_t dld_aul = B_TRUE; /* Set to B_FALSE to prevent driver */ 66*0Sstevel@tonic-gate /* unloading */ 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate static kmutex_t drv_lock; /* Needs no initialization */ 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate static struct module_info drv_info = { 71*0Sstevel@tonic-gate 0, /* mi_idnum */ 72*0Sstevel@tonic-gate DLD_DRIVER_NAME, /* mi_idname */ 73*0Sstevel@tonic-gate 0, /* mi_minpsz */ 74*0Sstevel@tonic-gate (64 * 1024), /* mi_maxpsz */ 75*0Sstevel@tonic-gate 1, /* mi_hiwat */ 76*0Sstevel@tonic-gate 0 /* mi_lowat */ 77*0Sstevel@tonic-gate }; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate static struct qinit drv_ur_init = { 80*0Sstevel@tonic-gate NULL, /* qi_putp */ 81*0Sstevel@tonic-gate NULL, /* qi_srvp */ 82*0Sstevel@tonic-gate drv_open, /* qi_qopen */ 83*0Sstevel@tonic-gate drv_close, /* qi_qclose */ 84*0Sstevel@tonic-gate NULL, /* qi_qadmin */ 85*0Sstevel@tonic-gate &drv_info, /* qi_minfo */ 86*0Sstevel@tonic-gate NULL /* qi_mstat */ 87*0Sstevel@tonic-gate }; 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate static struct qinit drv_uw_init = { 90*0Sstevel@tonic-gate (pfi_t)drv_uw_put, /* qi_putp */ 91*0Sstevel@tonic-gate (pfi_t)drv_uw_srv, /* qi_srvp */ 92*0Sstevel@tonic-gate NULL, /* qi_qopen */ 93*0Sstevel@tonic-gate NULL, /* qi_qclose */ 94*0Sstevel@tonic-gate NULL, /* qi_qadmin */ 95*0Sstevel@tonic-gate &drv_info, /* qi_minfo */ 96*0Sstevel@tonic-gate NULL /* qi_mstat */ 97*0Sstevel@tonic-gate }; 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate static struct streamtab drv_stream = { 100*0Sstevel@tonic-gate &drv_ur_init, /* st_rdinit */ 101*0Sstevel@tonic-gate &drv_uw_init, /* st_wrinit */ 102*0Sstevel@tonic-gate NULL, /* st_muxrinit */ 103*0Sstevel@tonic-gate NULL /* st_muxwinit */ 104*0Sstevel@tonic-gate }; 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate DDI_DEFINE_STREAM_OPS(drv_ops, nulldev, nulldev, drv_attach, drv_detach, 107*0Sstevel@tonic-gate nodev, drv_getinfo, D_MP | D_MTQPAIR | D_MTPUTSHARED, &drv_stream); 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate /* 110*0Sstevel@tonic-gate * Module linkage information for the kernel. 111*0Sstevel@tonic-gate */ 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate extern struct mod_ops mod_driverops; 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate static struct modldrv drv_modldrv = { 116*0Sstevel@tonic-gate &mod_driverops, 117*0Sstevel@tonic-gate DLD_INFO, 118*0Sstevel@tonic-gate &drv_ops 119*0Sstevel@tonic-gate }; 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate static struct modlinkage drv_modlinkage = { 122*0Sstevel@tonic-gate MODREV_1, 123*0Sstevel@tonic-gate &drv_modldrv, 124*0Sstevel@tonic-gate NULL 125*0Sstevel@tonic-gate }; 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate int 128*0Sstevel@tonic-gate _init(void) 129*0Sstevel@tonic-gate { 130*0Sstevel@tonic-gate int err; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if ((err = mod_install(&drv_modlinkage)) != 0) 133*0Sstevel@tonic-gate return (err); 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate #ifdef DEBUG 136*0Sstevel@tonic-gate cmn_err(CE_NOTE, "!%s loaded", DLD_INFO); 137*0Sstevel@tonic-gate #endif /* DEBUG */ 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate return (0); 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate int 143*0Sstevel@tonic-gate _fini(void) 144*0Sstevel@tonic-gate { 145*0Sstevel@tonic-gate int err; 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate if (!dld_aul) 148*0Sstevel@tonic-gate return (ENOTSUP); 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate if ((err = mod_remove(&drv_modlinkage)) != 0) 151*0Sstevel@tonic-gate return (err); 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate #ifdef DEBUG 154*0Sstevel@tonic-gate cmn_err(CE_NOTE, "!%s unloaded", DLD_INFO); 155*0Sstevel@tonic-gate #endif /* DEBUG */ 156*0Sstevel@tonic-gate 157*0Sstevel@tonic-gate return (err); 158*0Sstevel@tonic-gate } 159*0Sstevel@tonic-gate 160*0Sstevel@tonic-gate int 161*0Sstevel@tonic-gate _info(struct modinfo *modinfop) 162*0Sstevel@tonic-gate { 163*0Sstevel@tonic-gate return (mod_info(&drv_modlinkage, modinfop)); 164*0Sstevel@tonic-gate } 165*0Sstevel@tonic-gate 166*0Sstevel@tonic-gate 167*0Sstevel@tonic-gate /* 168*0Sstevel@tonic-gate * Initialize compoment modules. 169*0Sstevel@tonic-gate */ 170*0Sstevel@tonic-gate static void 171*0Sstevel@tonic-gate drv_init(void) 172*0Sstevel@tonic-gate { 173*0Sstevel@tonic-gate dld_minor_init(); 174*0Sstevel@tonic-gate dld_node_init(); 175*0Sstevel@tonic-gate dld_str_init(); 176*0Sstevel@tonic-gate dld_ppa_init(); 177*0Sstevel@tonic-gate } 178*0Sstevel@tonic-gate 179*0Sstevel@tonic-gate static int 180*0Sstevel@tonic-gate drv_fini(void) 181*0Sstevel@tonic-gate { 182*0Sstevel@tonic-gate int err; 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate if ((err = dld_ppa_fini()) != 0) 185*0Sstevel@tonic-gate return (err); 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate err = dld_str_fini(); 188*0Sstevel@tonic-gate ASSERT(err == 0); 189*0Sstevel@tonic-gate 190*0Sstevel@tonic-gate err = dld_node_fini(); 191*0Sstevel@tonic-gate ASSERT(err == 0); 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate err = dld_minor_fini(); 194*0Sstevel@tonic-gate ASSERT(err == 0); 195*0Sstevel@tonic-gate 196*0Sstevel@tonic-gate return (0); 197*0Sstevel@tonic-gate } 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate /* 200*0Sstevel@tonic-gate * devo_getinfo: getinfo(9e) 201*0Sstevel@tonic-gate */ 202*0Sstevel@tonic-gate /*ARGSUSED*/ 203*0Sstevel@tonic-gate static int 204*0Sstevel@tonic-gate drv_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **resp) 205*0Sstevel@tonic-gate { 206*0Sstevel@tonic-gate if (dld_dip == NULL) 207*0Sstevel@tonic-gate return (DDI_FAILURE); 208*0Sstevel@tonic-gate 209*0Sstevel@tonic-gate switch (cmd) { 210*0Sstevel@tonic-gate case DDI_INFO_DEVT2INSTANCE: 211*0Sstevel@tonic-gate *resp = (void *)0; 212*0Sstevel@tonic-gate break; 213*0Sstevel@tonic-gate case DDI_INFO_DEVT2DEVINFO: 214*0Sstevel@tonic-gate *resp = (void *)dld_dip; 215*0Sstevel@tonic-gate break; 216*0Sstevel@tonic-gate default: 217*0Sstevel@tonic-gate return (DDI_FAILURE); 218*0Sstevel@tonic-gate } 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate return (DDI_SUCCESS); 221*0Sstevel@tonic-gate } 222*0Sstevel@tonic-gate 223*0Sstevel@tonic-gate /* 224*0Sstevel@tonic-gate * Check properties to set options. (See dld.h for property definitions). 225*0Sstevel@tonic-gate */ 226*0Sstevel@tonic-gate static void 227*0Sstevel@tonic-gate drv_set_opt(dev_info_t *dip) 228*0Sstevel@tonic-gate { 229*0Sstevel@tonic-gate if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 230*0Sstevel@tonic-gate DLD_PROP_NO_STYLE1, 0) != 0) { 231*0Sstevel@tonic-gate #ifdef DEBUG 232*0Sstevel@tonic-gate cmn_err(CE_NOTE, "%s: ON", DLD_PROP_NO_STYLE1); 233*0Sstevel@tonic-gate #endif /* DEBUG */ 234*0Sstevel@tonic-gate dld_opt |= DLD_OPT_NO_STYLE1; 235*0Sstevel@tonic-gate } 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 238*0Sstevel@tonic-gate DLD_PROP_NO_FASTPATH, 0) != 0) { 239*0Sstevel@tonic-gate #ifdef DEBUG 240*0Sstevel@tonic-gate cmn_err(CE_NOTE, "%s: ON", DLD_PROP_NO_FASTPATH); 241*0Sstevel@tonic-gate #endif /* DEBUG */ 242*0Sstevel@tonic-gate dld_opt |= DLD_OPT_NO_FASTPATH; 243*0Sstevel@tonic-gate } 244*0Sstevel@tonic-gate 245*0Sstevel@tonic-gate if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 246*0Sstevel@tonic-gate DLD_PROP_NO_POLL, 0) != 0) { 247*0Sstevel@tonic-gate #ifdef DEBUG 248*0Sstevel@tonic-gate cmn_err(CE_NOTE, "%s: ON", DLD_PROP_NO_POLL); 249*0Sstevel@tonic-gate #endif /* DEBUG */ 250*0Sstevel@tonic-gate dld_opt |= DLD_OPT_NO_POLL; 251*0Sstevel@tonic-gate } 252*0Sstevel@tonic-gate 253*0Sstevel@tonic-gate if (ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 254*0Sstevel@tonic-gate DLD_PROP_NO_ZEROCOPY, 0) != 0) { 255*0Sstevel@tonic-gate #ifdef DEBUG 256*0Sstevel@tonic-gate cmn_err(CE_NOTE, "%s: ON", DLD_PROP_NO_ZEROCOPY); 257*0Sstevel@tonic-gate #endif /* DEBUG */ 258*0Sstevel@tonic-gate dld_opt |= DLD_OPT_NO_ZEROCOPY; 259*0Sstevel@tonic-gate } 260*0Sstevel@tonic-gate } 261*0Sstevel@tonic-gate 262*0Sstevel@tonic-gate /* 263*0Sstevel@tonic-gate * devo_attach: attach(9e) 264*0Sstevel@tonic-gate */ 265*0Sstevel@tonic-gate static int 266*0Sstevel@tonic-gate drv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 267*0Sstevel@tonic-gate { 268*0Sstevel@tonic-gate if (cmd != DDI_ATTACH) 269*0Sstevel@tonic-gate return (DDI_FAILURE); 270*0Sstevel@tonic-gate 271*0Sstevel@tonic-gate ASSERT(ddi_get_instance(dip) == 0); 272*0Sstevel@tonic-gate 273*0Sstevel@tonic-gate drv_init(); 274*0Sstevel@tonic-gate drv_set_opt(dip); 275*0Sstevel@tonic-gate 276*0Sstevel@tonic-gate /* 277*0Sstevel@tonic-gate * Create control node. DLPI provider nodes will be created on demand. 278*0Sstevel@tonic-gate */ 279*0Sstevel@tonic-gate if (ddi_create_minor_node(dip, DLD_CONTROL_MINOR_NAME, S_IFCHR, 280*0Sstevel@tonic-gate DLD_CONTROL_MINOR, DDI_PSEUDO, 0) != DDI_SUCCESS) 281*0Sstevel@tonic-gate return (DDI_FAILURE); 282*0Sstevel@tonic-gate 283*0Sstevel@tonic-gate dld_dip = dip; 284*0Sstevel@tonic-gate 285*0Sstevel@tonic-gate /* 286*0Sstevel@tonic-gate * Log the fact that the driver is now attached. 287*0Sstevel@tonic-gate */ 288*0Sstevel@tonic-gate ddi_report_dev(dip); 289*0Sstevel@tonic-gate return (DDI_SUCCESS); 290*0Sstevel@tonic-gate } 291*0Sstevel@tonic-gate 292*0Sstevel@tonic-gate /* 293*0Sstevel@tonic-gate * devo_detach: detach(9e) 294*0Sstevel@tonic-gate */ 295*0Sstevel@tonic-gate static int 296*0Sstevel@tonic-gate drv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 297*0Sstevel@tonic-gate { 298*0Sstevel@tonic-gate if (cmd != DDI_DETACH) 299*0Sstevel@tonic-gate return (DDI_FAILURE); 300*0Sstevel@tonic-gate 301*0Sstevel@tonic-gate if (drv_fini() != 0) 302*0Sstevel@tonic-gate return (DDI_FAILURE); 303*0Sstevel@tonic-gate 304*0Sstevel@tonic-gate ASSERT(dld_dip == dip); 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate /* 307*0Sstevel@tonic-gate * Remove the control node. 308*0Sstevel@tonic-gate */ 309*0Sstevel@tonic-gate ddi_remove_minor_node(dip, DLD_CONTROL_MINOR_NAME); 310*0Sstevel@tonic-gate dld_dip = NULL; 311*0Sstevel@tonic-gate 312*0Sstevel@tonic-gate return (DDI_SUCCESS); 313*0Sstevel@tonic-gate } 314*0Sstevel@tonic-gate 315*0Sstevel@tonic-gate /* 316*0Sstevel@tonic-gate * qi_qopen: open(9e) 317*0Sstevel@tonic-gate */ 318*0Sstevel@tonic-gate /*ARGSUSED*/ 319*0Sstevel@tonic-gate static int 320*0Sstevel@tonic-gate drv_open(queue_t *rq, dev_t *devp, int flag, int sflag, cred_t *credp) 321*0Sstevel@tonic-gate { 322*0Sstevel@tonic-gate dld_str_t *dsp; 323*0Sstevel@tonic-gate dld_node_t *dnp; 324*0Sstevel@tonic-gate dld_ppa_t *dpp; 325*0Sstevel@tonic-gate minor_t minor; 326*0Sstevel@tonic-gate int err; 327*0Sstevel@tonic-gate 328*0Sstevel@tonic-gate ASSERT(sflag != MODOPEN); 329*0Sstevel@tonic-gate 330*0Sstevel@tonic-gate /* 331*0Sstevel@tonic-gate * This is a cloning driver and therefore each queue should only 332*0Sstevel@tonic-gate * ever get opened once. 333*0Sstevel@tonic-gate */ 334*0Sstevel@tonic-gate ASSERT(rq->q_ptr == NULL); 335*0Sstevel@tonic-gate if (rq->q_ptr != NULL) 336*0Sstevel@tonic-gate return (EBUSY); 337*0Sstevel@tonic-gate 338*0Sstevel@tonic-gate /* 339*0Sstevel@tonic-gate * Grab the minor number of the dev_t that was opened. Because this 340*0Sstevel@tonic-gate * is a cloning driver this will be distinct from the actual minor 341*0Sstevel@tonic-gate * of the dev_t handed back. 342*0Sstevel@tonic-gate */ 343*0Sstevel@tonic-gate minor = getminor(*devp); 344*0Sstevel@tonic-gate 345*0Sstevel@tonic-gate /* 346*0Sstevel@tonic-gate * Create a new dld_str_t for the stream. This will grab a new minor 347*0Sstevel@tonic-gate * number that will be handed back in the cloned dev_t. 348*0Sstevel@tonic-gate */ 349*0Sstevel@tonic-gate dsp = dld_str_create(rq); 350*0Sstevel@tonic-gate 351*0Sstevel@tonic-gate if (minor != DLD_CONTROL_MINOR) { 352*0Sstevel@tonic-gate /* 353*0Sstevel@tonic-gate * This is not the control node, so look up the DLPI 354*0Sstevel@tonic-gate * provider node that is being opened. 355*0Sstevel@tonic-gate */ 356*0Sstevel@tonic-gate if ((dnp = dld_node_find(minor)) == NULL) { 357*0Sstevel@tonic-gate err = ENODEV; 358*0Sstevel@tonic-gate goto failed; 359*0Sstevel@tonic-gate } 360*0Sstevel@tonic-gate 361*0Sstevel@tonic-gate dsp->ds_dnp = dnp; 362*0Sstevel@tonic-gate dsp->ds_type = DLD_DLPI; 363*0Sstevel@tonic-gate 364*0Sstevel@tonic-gate ASSERT(dsp->ds_dlstate == DL_UNATTACHED); 365*0Sstevel@tonic-gate if (dnp->dn_style == DL_STYLE1) { 366*0Sstevel@tonic-gate /* 367*0Sstevel@tonic-gate * This is a style 1 provider node so we have a 368*0Sstevel@tonic-gate * non-ambiguous PPA. 369*0Sstevel@tonic-gate */ 370*0Sstevel@tonic-gate dpp = dld_node_ppa_find(dnp, -1); 371*0Sstevel@tonic-gate 372*0Sstevel@tonic-gate if ((err = dld_str_attach(dsp, dpp)) != 0) 373*0Sstevel@tonic-gate goto failed; 374*0Sstevel@tonic-gate dsp->ds_dlstate = DL_UNBOUND; 375*0Sstevel@tonic-gate } 376*0Sstevel@tonic-gate } else { 377*0Sstevel@tonic-gate /* 378*0Sstevel@tonic-gate * This is the control node. It is exclusive-access so 379*0Sstevel@tonic-gate * verify that it is not already open. 380*0Sstevel@tonic-gate */ 381*0Sstevel@tonic-gate mutex_enter(&drv_lock); 382*0Sstevel@tonic-gate if (dld_open) { 383*0Sstevel@tonic-gate err = EBUSY; 384*0Sstevel@tonic-gate mutex_exit(&drv_lock); 385*0Sstevel@tonic-gate goto failed; 386*0Sstevel@tonic-gate } 387*0Sstevel@tonic-gate 388*0Sstevel@tonic-gate dld_open = B_TRUE; 389*0Sstevel@tonic-gate mutex_exit(&drv_lock); 390*0Sstevel@tonic-gate 391*0Sstevel@tonic-gate dsp->ds_type = DLD_CONTROL; 392*0Sstevel@tonic-gate } 393*0Sstevel@tonic-gate 394*0Sstevel@tonic-gate /* 395*0Sstevel@tonic-gate * Enable the queue srv(9e) routine. 396*0Sstevel@tonic-gate */ 397*0Sstevel@tonic-gate qprocson(rq); 398*0Sstevel@tonic-gate 399*0Sstevel@tonic-gate /* 400*0Sstevel@tonic-gate * Construct a cloned dev_t to hand back. 401*0Sstevel@tonic-gate */ 402*0Sstevel@tonic-gate *devp = makedevice(getmajor(*devp), dsp->ds_minor); 403*0Sstevel@tonic-gate return (0); 404*0Sstevel@tonic-gate 405*0Sstevel@tonic-gate failed: 406*0Sstevel@tonic-gate dld_str_destroy(dsp); 407*0Sstevel@tonic-gate return (err); 408*0Sstevel@tonic-gate } 409*0Sstevel@tonic-gate 410*0Sstevel@tonic-gate /* 411*0Sstevel@tonic-gate * qi_qclose: close(9e) 412*0Sstevel@tonic-gate */ 413*0Sstevel@tonic-gate static int 414*0Sstevel@tonic-gate drv_close(queue_t *rq) 415*0Sstevel@tonic-gate { 416*0Sstevel@tonic-gate dld_str_t *dsp; 417*0Sstevel@tonic-gate 418*0Sstevel@tonic-gate dsp = rq->q_ptr; 419*0Sstevel@tonic-gate ASSERT(dsp != NULL); 420*0Sstevel@tonic-gate 421*0Sstevel@tonic-gate /* 422*0Sstevel@tonic-gate * Disable the queue srv(9e) routine. 423*0Sstevel@tonic-gate */ 424*0Sstevel@tonic-gate qprocsoff(rq); 425*0Sstevel@tonic-gate 426*0Sstevel@tonic-gate if (dsp->ds_type != DLD_CONTROL) { 427*0Sstevel@tonic-gate /* 428*0Sstevel@tonic-gate * This stream was open to a provider node. Check to see 429*0Sstevel@tonic-gate * if it has been cleanly shut down. 430*0Sstevel@tonic-gate */ 431*0Sstevel@tonic-gate if (dsp->ds_dlstate != DL_UNATTACHED) { 432*0Sstevel@tonic-gate /* 433*0Sstevel@tonic-gate * The stream is either open to a style 1 provider or 434*0Sstevel@tonic-gate * this is not clean shutdown. Detach from the PPA. 435*0Sstevel@tonic-gate * (This is still ok even in the style 1 case). 436*0Sstevel@tonic-gate */ 437*0Sstevel@tonic-gate dld_str_detach(dsp); 438*0Sstevel@tonic-gate dsp->ds_dlstate = DL_UNATTACHED; 439*0Sstevel@tonic-gate } 440*0Sstevel@tonic-gate } else { 441*0Sstevel@tonic-gate /* 442*0Sstevel@tonic-gate * This stream was open to the control node. Clear the flag 443*0Sstevel@tonic-gate * to allow another stream access. 444*0Sstevel@tonic-gate */ 445*0Sstevel@tonic-gate ASSERT(dld_open); 446*0Sstevel@tonic-gate dld_open = B_FALSE; 447*0Sstevel@tonic-gate } 448*0Sstevel@tonic-gate 449*0Sstevel@tonic-gate dld_str_destroy(dsp); 450*0Sstevel@tonic-gate return (0); 451*0Sstevel@tonic-gate } 452*0Sstevel@tonic-gate 453*0Sstevel@tonic-gate /* 454*0Sstevel@tonic-gate * qi_qputp: put(9e) 455*0Sstevel@tonic-gate */ 456*0Sstevel@tonic-gate static void 457*0Sstevel@tonic-gate drv_uw_put(queue_t *wq, mblk_t *mp) 458*0Sstevel@tonic-gate { 459*0Sstevel@tonic-gate dld_str_t *dsp; 460*0Sstevel@tonic-gate 461*0Sstevel@tonic-gate dsp = wq->q_ptr; 462*0Sstevel@tonic-gate ASSERT(dsp != NULL); 463*0Sstevel@tonic-gate 464*0Sstevel@tonic-gate /* 465*0Sstevel@tonic-gate * Call the put(9e) processor. 466*0Sstevel@tonic-gate */ 467*0Sstevel@tonic-gate dld_str_put(dsp, mp); 468*0Sstevel@tonic-gate } 469*0Sstevel@tonic-gate 470*0Sstevel@tonic-gate /* 471*0Sstevel@tonic-gate * qi_srvp: srv(9e) 472*0Sstevel@tonic-gate */ 473*0Sstevel@tonic-gate static void 474*0Sstevel@tonic-gate drv_uw_srv(queue_t *wq) 475*0Sstevel@tonic-gate { 476*0Sstevel@tonic-gate mblk_t *mp = NULL; 477*0Sstevel@tonic-gate mblk_t *p; 478*0Sstevel@tonic-gate mblk_t **pp; 479*0Sstevel@tonic-gate dld_str_t *dsp; 480*0Sstevel@tonic-gate 481*0Sstevel@tonic-gate dsp = wq->q_ptr; 482*0Sstevel@tonic-gate ASSERT(dsp != NULL); 483*0Sstevel@tonic-gate 484*0Sstevel@tonic-gate /* 485*0Sstevel@tonic-gate * Loop round and pull a chain of messages from the queue. 486*0Sstevel@tonic-gate */ 487*0Sstevel@tonic-gate for (pp = ∓ (p = getq(wq)) != NULL; pp = &(p->b_next)) 488*0Sstevel@tonic-gate *pp = p; 489*0Sstevel@tonic-gate 490*0Sstevel@tonic-gate /* 491*0Sstevel@tonic-gate * If there was nothing on the queue then there's nothing to do. 492*0Sstevel@tonic-gate */ 493*0Sstevel@tonic-gate if (mp == NULL) 494*0Sstevel@tonic-gate return; 495*0Sstevel@tonic-gate 496*0Sstevel@tonic-gate /* 497*0Sstevel@tonic-gate * Call the srv(9e) processor. 498*0Sstevel@tonic-gate */ 499*0Sstevel@tonic-gate dld_str_srv(dsp, mp); 500*0Sstevel@tonic-gate } 501