mly.c revision 67446
1144966Svkashyap/*- 2169400Sscottl * Copyright (c) 2000 Michael Smith 3144966Svkashyap * Copyright (c) 2000 BSDi 4144966Svkashyap * All rights reserved. 5144966Svkashyap * 6144966Svkashyap * Redistribution and use in source and binary forms, with or without 7144966Svkashyap * modification, are permitted provided that the following conditions 8144966Svkashyap * are met: 9144966Svkashyap * 1. Redistributions of source code must retain the above copyright 10144966Svkashyap * notice, this list of conditions and the following disclaimer. 11144966Svkashyap * 2. Redistributions in binary form must reproduce the above copyright 12144966Svkashyap * notice, this list of conditions and the following disclaimer in the 13144966Svkashyap * documentation and/or other materials provided with the distribution. 14144966Svkashyap * 15144966Svkashyap * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16144966Svkashyap * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17144966Svkashyap * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18144966Svkashyap * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19144966Svkashyap * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20144966Svkashyap * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21144966Svkashyap * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22144966Svkashyap * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23144966Svkashyap * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24144966Svkashyap * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25144966Svkashyap * SUCH DAMAGE. 26144966Svkashyap * 27144966Svkashyap * $FreeBSD: head/sys/dev/mly/mly.c 67446 2000-10-22 19:39:17Z phk $ 28144966Svkashyap */ 29144966Svkashyap 30144966Svkashyap#include <sys/param.h> 31144966Svkashyap#include <sys/systm.h> 32144966Svkashyap#include <sys/malloc.h> 33144966Svkashyap#include <sys/kernel.h> 34169400Sscottl#include <sys/bus.h> 35172496Sscottl#include <sys/conf.h> 36144966Svkashyap#include <sys/ctype.h> 37144966Svkashyap 38144966Svkashyap#include <machine/bus_memio.h> 39144966Svkashyap#include <machine/bus.h> 40144966Svkashyap#include <machine/resource.h> 41144966Svkashyap#include <sys/rman.h> 42144966Svkashyap 43144966Svkashyap#include <cam/scsi/scsi_all.h> 44144966Svkashyap 45144966Svkashyap/* XXX: This is not where we should get fldoff() from. */ 46144966Svkashyap#include <struct.h> 47144966Svkashyap 48144966Svkashyap#include <dev/mly/mlyreg.h> 49144966Svkashyap#include <dev/mly/mlyvar.h> 50144966Svkashyap#define MLY_DEFINE_TABLES 51144966Svkashyap#include <dev/mly/mly_tables.h> 52144966Svkashyap 53144966Svkashyapstatic int mly_get_controllerinfo(struct mly_softc *sc); 54144966Svkashyapstatic void mly_scan_devices(struct mly_softc *sc); 55152213Svkashyapstatic void mly_rescan_btl(struct mly_softc *sc, int bus, int target); 56152213Svkashyapstatic void mly_complete_rescan(struct mly_command *mc); 57169400Sscottlstatic int mly_get_eventstatus(struct mly_softc *sc); 58172496Sscottlstatic int mly_enable_mmbox(struct mly_softc *sc); 59144966Svkashyapstatic int mly_flush(struct mly_softc *sc); 60152213Svkashyapstatic int mly_ioctl(struct mly_softc *sc, struct mly_command_ioctl *ioctl, void **data, 61152213Svkashyap size_t datasize, u_int8_t *status, void *sense_buffer, size_t *sense_length); 62152213Svkashyapstatic void mly_fetch_event(struct mly_softc *sc); 63152213Svkashyapstatic void mly_complete_event(struct mly_command *mc); 64152213Svkashyapstatic void mly_process_event(struct mly_softc *sc, struct mly_event *me); 65152213Svkashyapstatic void mly_periodic(void *data); 66152213Svkashyap 67152213Svkashyapstatic int mly_immediate_command(struct mly_command *mc); 68169400Sscottlstatic int mly_start(struct mly_command *mc); 69152213Svkashyapstatic void mly_complete(void *context, int pending); 70152213Svkashyap 71144966Svkashyapstatic int mly_get_slot(struct mly_command *mc); 72144966Svkashyapstatic void mly_alloc_command_cluster_map(void *arg, bus_dma_segment_t *segs, int nseg, int error); 73144966Svkashyapstatic void mly_alloc_command_cluster(struct mly_softc *sc); 74144966Svkashyapstatic void mly_map_command(struct mly_command *mc); 75144966Svkashyapstatic void mly_unmap_command(struct mly_command *mc); 76144966Svkashyap 77144966Svkashyapstatic int mly_fwhandshake(struct mly_softc *sc); 78144966Svkashyap 79208969Sdelphijstatic void mly_describe_controller(struct mly_softc *sc); 80144966Svkashyap#ifdef MLY_DEBUG 81144966Svkashyapstatic void mly_printstate(struct mly_softc *sc); 82144966Svkashyapstatic void mly_print_command(struct mly_command *mc); 83144966Svkashyapstatic void mly_print_packet(struct mly_command *mc); 84144966Svkashyapstatic void mly_panic(struct mly_softc *sc, char *reason); 85144966Svkashyap#endif 86144966Svkashyap 87144966Svkashyap/******************************************************************************** 88144966Svkashyap ******************************************************************************** 89144966Svkashyap Device Interface 90152213Svkashyap ******************************************************************************** 91144966Svkashyap ********************************************************************************/ 92144966Svkashyap 93144966Svkashyap/******************************************************************************** 94144966Svkashyap * Initialise the controller and softc 95144966Svkashyap */ 96144966Svkashyapint 97144966Svkashyapmly_attach(struct mly_softc *sc) 98144966Svkashyap{ 99144966Svkashyap int error; 100144966Svkashyap 101144966Svkashyap debug_called(1); 102144966Svkashyap 103144966Svkashyap /* 104144966Svkashyap * Initialise per-controller queues. 105144966Svkashyap */ 106144966Svkashyap TAILQ_INIT(&sc->mly_freecmds); 107144966Svkashyap TAILQ_INIT(&sc->mly_ready); 108144966Svkashyap TAILQ_INIT(&sc->mly_completed); 109144966Svkashyap TAILQ_INIT(&sc->mly_clusters); 110144966Svkashyap 111144966Svkashyap#if __FreeBSD_version >= 500005 112144966Svkashyap /* 113144966Svkashyap * Initialise command-completion task. 114144966Svkashyap */ 115144966Svkashyap TASK_INIT(&sc->mly_task_complete, 0, mly_complete, sc); 116144966Svkashyap#endif 117144966Svkashyap 118144966Svkashyap /* disable interrupts before we start talking to the controller */ 119144966Svkashyap MLY_MASK_INTERRUPTS(sc); 120144966Svkashyap 121144966Svkashyap /* 122144966Svkashyap * Wait for the controller to come ready, handshake with the firmware if required. 123144966Svkashyap * This is typically only necessary on platforms where the controller BIOS does not 124144966Svkashyap * run. 125144966Svkashyap */ 126144966Svkashyap if ((error = mly_fwhandshake(sc))) 127144966Svkashyap return(error); 128144966Svkashyap 129144966Svkashyap /* 130144966Svkashyap * Initialise the slot allocator so that we can issue commands. 131144966Svkashyap */ 132144966Svkashyap sc->mly_max_commands = MLY_SLOT_MAX; 133144966Svkashyap sc->mly_last_slot = MLY_SLOT_START; 134144966Svkashyap 135144966Svkashyap /* 136144966Svkashyap * Obtain controller feature information 137144966Svkashyap */ 138144966Svkashyap if ((error = mly_get_controllerinfo(sc))) 139144966Svkashyap return(error); 140144966Svkashyap 141144966Svkashyap /* 142144966Svkashyap * Update the slot allocator limit based on the controller inquiry. 143144966Svkashyap */ 144144966Svkashyap sc->mly_max_commands = imin(sc->mly_controllerinfo->maximum_parallel_commands, MLY_SLOT_MAX); 145144966Svkashyap 146208969Sdelphij /* 147144966Svkashyap * Get the current event counter for health purposes, populate the initial 148144966Svkashyap * health status buffer. 149144966Svkashyap */ 150144966Svkashyap if ((error = mly_get_eventstatus(sc))) 151144966Svkashyap return(error); 152144966Svkashyap 153144966Svkashyap /* 154144966Svkashyap * Enable memory-mailbox mode 155144966Svkashyap */ 156144966Svkashyap if ((error = mly_enable_mmbox(sc))) 157144966Svkashyap return(error); 158144966Svkashyap 159144966Svkashyap /* 160144966Svkashyap * Attach to CAM. 161144966Svkashyap */ 162144966Svkashyap if ((error = mly_cam_attach(sc))) 163144966Svkashyap return(error); 164144966Svkashyap 165144966Svkashyap /* 166144966Svkashyap * Print a little information about the controller 167144966Svkashyap */ 168144966Svkashyap mly_describe_controller(sc); 169144966Svkashyap 170144966Svkashyap /* 171144966Svkashyap * Mark all attached devices for rescan 172144966Svkashyap */ 173144966Svkashyap mly_scan_devices(sc); 174144966Svkashyap 175144966Svkashyap /* 176144966Svkashyap * Instigate the first status poll immediately. Rescan completions won't 177144966Svkashyap * happen until interrupts are enabled, which should still be before 178144966Svkashyap * the SCSI subsystem gets to us. (XXX assuming CAM and interrupt-driven 179144966Svkashyap * discovery here...) 180144966Svkashyap */ 181144966Svkashyap mly_periodic((void *)sc); 182144966Svkashyap 183144966Svkashyap /* enable interrupts now */ 184144966Svkashyap MLY_UNMASK_INTERRUPTS(sc); 185144966Svkashyap 186144966Svkashyap return(0); 187144966Svkashyap} 188144966Svkashyap 189144966Svkashyap/******************************************************************************** 190144966Svkashyap * Bring the controller to a state where it can be safely left alone. 191144966Svkashyap */ 192209860Sdelphijvoid 193144966Svkashyapmly_detach(struct mly_softc *sc) 194144966Svkashyap{ 195144966Svkashyap 196144966Svkashyap debug_called(1); 197144966Svkashyap 198144966Svkashyap /* kill the periodic event */ 199144966Svkashyap untimeout(mly_periodic, sc, sc->mly_periodic); 200144966Svkashyap 201144966Svkashyap sc->mly_state |= MLY_STATE_SUSPEND; 202144966Svkashyap 203144966Svkashyap /* flush controller */ 204144966Svkashyap mly_printf(sc, "flushing cache..."); 205144966Svkashyap printf("%s\n", mly_flush(sc) ? "failed" : "done"); 206144966Svkashyap 207144966Svkashyap MLY_MASK_INTERRUPTS(sc); 208144966Svkashyap} 209209860Sdelphij 210144966Svkashyap/******************************************************************************** 211144966Svkashyap ******************************************************************************** 212144966Svkashyap Command Wrappers 213144966Svkashyap ******************************************************************************** 214144966Svkashyap ********************************************************************************/ 215144966Svkashyap 216144966Svkashyap/******************************************************************************** 217144966Svkashyap * Fill in the mly_controllerinfo and mly_controllerparam fields in the softc. 218144966Svkashyap */ 219209860Sdelphijstatic int 220144966Svkashyapmly_get_controllerinfo(struct mly_softc *sc) 221144966Svkashyap{ 222144966Svkashyap struct mly_command_ioctl mci; 223144966Svkashyap u_int8_t status; 224144966Svkashyap int error; 225144966Svkashyap 226144966Svkashyap debug_called(1); 227144966Svkashyap 228144966Svkashyap if (sc->mly_controllerinfo != NULL) 229144966Svkashyap free(sc->mly_controllerinfo, M_DEVBUF); 230144966Svkashyap 231144966Svkashyap /* build the getcontrollerinfo ioctl and send it */ 232144966Svkashyap bzero(&mci, sizeof(mci)); 233144966Svkashyap sc->mly_controllerinfo = NULL; 234144966Svkashyap mci.sub_ioctl = MDACIOCTL_GETCONTROLLERINFO; 235144966Svkashyap if ((error = mly_ioctl(sc, &mci, (void **)&sc->mly_controllerinfo, sizeof(*sc->mly_controllerinfo), 236144966Svkashyap &status, NULL, NULL))) 237144966Svkashyap return(error); 238144966Svkashyap if (status != 0) 239144966Svkashyap return(EIO); 240144966Svkashyap 241144966Svkashyap if (sc->mly_controllerparam != NULL) 242144966Svkashyap free(sc->mly_controllerparam, M_DEVBUF); 243144966Svkashyap 244144966Svkashyap /* build the getcontrollerparameter ioctl and send it */ 245144966Svkashyap bzero(&mci, sizeof(mci)); 246144966Svkashyap sc->mly_controllerparam = NULL; 247144966Svkashyap mci.sub_ioctl = MDACIOCTL_GETCONTROLLERPARAMETER; 248144966Svkashyap if ((error = mly_ioctl(sc, &mci, (void **)&sc->mly_controllerparam, sizeof(*sc->mly_controllerparam), 249144966Svkashyap &status, NULL, NULL))) 250144966Svkashyap return(error); 251144966Svkashyap if (status != 0) 252144966Svkashyap return(EIO); 253144966Svkashyap 254144966Svkashyap return(0); 255144966Svkashyap} 256144966Svkashyap 257144966Svkashyap/******************************************************************************** 258144966Svkashyap * Schedule all possible devices for a rescan. 259144966Svkashyap * 260144966Svkashyap */ 261144966Svkashyapstatic void 262144966Svkashyapmly_scan_devices(struct mly_softc *sc) 263144966Svkashyap{ 264144966Svkashyap int bus, target, nchn; 265144966Svkashyap 266144966Svkashyap debug_called(1); 267144966Svkashyap 268144966Svkashyap /* 269144966Svkashyap * Clear any previous BTL information. 270144966Svkashyap */ 271144966Svkashyap bzero(&sc->mly_btl, sizeof(sc->mly_btl)); 272144966Svkashyap 273144966Svkashyap /* 274144966Svkashyap * Mark all devices as requiring a rescan, and let the early periodic scan collect them. 275144966Svkashyap */ 276144966Svkashyap nchn = sc->mly_controllerinfo->physical_channels_present + 277144966Svkashyap sc->mly_controllerinfo->virtual_channels_present; 278144966Svkashyap for (bus = 0; bus < nchn; bus++) 279144966Svkashyap for (target = 0; target < MLY_MAX_TARGETS; target++) 280144966Svkashyap sc->mly_btl[bus][target].mb_flags = MLY_BTL_RESCAN; 281144966Svkashyap 282144966Svkashyap} 283144966Svkashyap 284144966Svkashyap/******************************************************************************** 285144966Svkashyap * Rescan a device, possibly as a consequence of getting an event which suggests 286144966Svkashyap * that it may have changed. 287144966Svkashyap */ 288144966Svkashyapstatic void 289144966Svkashyapmly_rescan_btl(struct mly_softc *sc, int bus, int target) 290144966Svkashyap{ 291144966Svkashyap struct mly_command *mc; 292144966Svkashyap struct mly_command_ioctl *mci; 293144966Svkashyap 294144966Svkashyap debug_called(2); 295144966Svkashyap 296144966Svkashyap /* get a command */ 297144966Svkashyap mc = NULL; 298144966Svkashyap if (mly_alloc_command(sc, &mc)) 299144966Svkashyap return; /* we'll be retried soon */ 300144966Svkashyap 301144966Svkashyap /* set up the data buffer */ 302144966Svkashyap if ((mc->mc_data = malloc(sizeof(union mly_devinfo), M_DEVBUF, M_NOWAIT)) == NULL) { 303144966Svkashyap mly_release_command(mc); 304144966Svkashyap return; /* we'll get retried the next time a command completes */ 305144966Svkashyap } 306144966Svkashyap bzero(mc->mc_data, sizeof(union mly_devinfo)); 307144966Svkashyap mc->mc_flags |= MLY_CMD_DATAIN; 308144966Svkashyap mc->mc_complete = mly_complete_rescan; 309144966Svkashyap 310144966Svkashyap sc->mly_btl[bus][target].mb_flags &= ~MLY_BTL_RESCAN; 311144966Svkashyap 312144966Svkashyap /* 313144966Svkashyap * Build the ioctl. 314144966Svkashyap * 315144966Svkashyap * At this point we are committed to sending this request, as it 316144966Svkashyap * will be the only one constructed for this particular update. 317144966Svkashyap */ 318144966Svkashyap mci = (struct mly_command_ioctl *)&mc->mc_packet->ioctl; 319144966Svkashyap mci->opcode = MDACMD_IOCTL; 320144966Svkashyap mci->addr.phys.controller = 0; 321144966Svkashyap mci->timeout.value = 30; 322144966Svkashyap mci->timeout.scale = MLY_TIMEOUT_SECONDS; 323144966Svkashyap if (bus >= sc->mly_controllerinfo->physical_channels_present) { 324144966Svkashyap mc->mc_length = mci->data_size = sizeof(struct mly_ioctl_getlogdevinfovalid); 325144966Svkashyap mci->sub_ioctl = MDACIOCTL_GETLOGDEVINFOVALID; 326144966Svkashyap mci->addr.log.logdev = ((bus - sc->mly_controllerinfo->physical_channels_present) * MLY_MAX_TARGETS) 327144966Svkashyap + target; 328144966Svkashyap debug(2, "logical device %d", mci->addr.log.logdev); 329144966Svkashyap } else { 330144966Svkashyap mc->mc_length = mci->data_size = sizeof(struct mly_ioctl_getphysdevinfovalid); 331144966Svkashyap mci->sub_ioctl = MDACIOCTL_GETPHYSDEVINFOVALID; 332144966Svkashyap mci->addr.phys.lun = 0; 333144966Svkashyap mci->addr.phys.target = target; 334152213Svkashyap mci->addr.phys.channel = bus; 335152213Svkashyap debug(2, "physical device %d:%d", mci->addr.phys.channel, mci->addr.phys.target); 336152213Svkashyap } 337152213Svkashyap 338152213Svkashyap /* 339152213Svkashyap * Use the ready queue to get this command dispatched. 340144966Svkashyap */ 341144966Svkashyap mly_enqueue_ready(mc); 342144966Svkashyap mly_startio(sc); 343144966Svkashyap} 344144966Svkashyap 345144966Svkashyap/******************************************************************************** 346144966Svkashyap * Handle the completion of a rescan operation 347144966Svkashyap */ 348144966Svkashyapstatic void 349144966Svkashyapmly_complete_rescan(struct mly_command *mc) 350144966Svkashyap{ 351144966Svkashyap struct mly_softc *sc = mc->mc_sc; 352212008Sdelphij struct mly_ioctl_getlogdevinfovalid *ldi; 353212008Sdelphij struct mly_ioctl_getphysdevinfovalid *pdi; 354212008Sdelphij int bus, target; 355152213Svkashyap 356152213Svkashyap debug_called(2); 357212008Sdelphij 358212008Sdelphij /* iff the command completed OK, we should use the result to update our data */ 359212008Sdelphij if (mc->mc_status == 0) { 360212008Sdelphij if (mc->mc_length == sizeof(*ldi)) { 361152213Svkashyap ldi = (struct mly_ioctl_getlogdevinfovalid *)mc->mc_data; 362212008Sdelphij bus = MLY_LOGDEV_BUS(sc, ldi->logical_device_number); 363144966Svkashyap target = MLY_LOGDEV_TARGET(ldi->logical_device_number); 364144966Svkashyap sc->mly_btl[bus][target].mb_flags = MLY_BTL_LOGICAL; /* clears all other flags */ 365144966Svkashyap sc->mly_btl[bus][target].mb_type = ldi->raid_level; 366144966Svkashyap sc->mly_btl[bus][target].mb_state = ldi->state; 367144966Svkashyap debug(2, "BTL rescan for %d returns %s, %s", ldi->logical_device_number, 368144966Svkashyap mly_describe_code(mly_table_device_type, ldi->raid_level), 369144966Svkashyap mly_describe_code(mly_table_device_state, ldi->state)); 370144966Svkashyap } else if (mc->mc_length == sizeof(*pdi)) { 371144966Svkashyap pdi = (struct mly_ioctl_getphysdevinfovalid *)mc->mc_data; 372144966Svkashyap bus = pdi->channel; 373144966Svkashyap target = pdi->target; 374144966Svkashyap sc->mly_btl[bus][target].mb_flags = MLY_BTL_PHYSICAL; /* clears all other flags */ 375144966Svkashyap sc->mly_btl[bus][target].mb_type = MLY_DEVICE_TYPE_PHYSICAL; 376144966Svkashyap sc->mly_btl[bus][target].mb_state = pdi->state; 377144966Svkashyap if (pdi->state != MLY_DEVICE_STATE_UNCONFIGURED) 378144966Svkashyap sc->mly_btl[bus][target].mb_flags |= MLY_BTL_PROTECTED; 379144966Svkashyap debug(2, "BTL rescan for %d:%d returns %s", bus, target, 380144966Svkashyap mly_describe_code(mly_table_device_state, pdi->state)); 381144966Svkashyap } else { 382144966Svkashyap mly_printf(sc, "BTL rescan result corrupted\n"); 383144966Svkashyap } 384144966Svkashyap } else { 385144966Svkashyap /* 386144966Svkashyap * A request sent for a device beyond the last device present will fail. 387144966Svkashyap * We don't care about this, so we do nothing about it. 388144966Svkashyap */ 389144966Svkashyap } 390144966Svkashyap free(mc->mc_data, M_DEVBUF); 391144966Svkashyap mly_release_command(mc); 392144966Svkashyap} 393144966Svkashyap 394144966Svkashyap/******************************************************************************** 395144966Svkashyap * Get the current health status and set the 'next event' counter to suit. 396144966Svkashyap */ 397144966Svkashyapstatic int 398144966Svkashyapmly_get_eventstatus(struct mly_softc *sc) 399144966Svkashyap{ 400144966Svkashyap struct mly_command_ioctl mci; 401144966Svkashyap struct mly_health_status *mh; 402144966Svkashyap u_int8_t status; 403144966Svkashyap int error; 404144966Svkashyap 405144966Svkashyap /* build the gethealthstatus ioctl and send it */ 406144966Svkashyap bzero(&mci, sizeof(mci)); 407144966Svkashyap mh = NULL; 408144966Svkashyap mci.sub_ioctl = MDACIOCTL_GETHEALTHSTATUS; 409144966Svkashyap 410144966Svkashyap if ((error = mly_ioctl(sc, &mci, (void **)&mh, sizeof(*mh), &status, NULL, NULL))) 411144966Svkashyap return(error); 412144966Svkashyap if (status != 0) 413144966Svkashyap return(EIO); 414144966Svkashyap 415144966Svkashyap /* get the event counter */ 416144966Svkashyap sc->mly_event_change = mh->change_counter; 417144966Svkashyap sc->mly_event_waiting = mh->next_event; 418144966Svkashyap sc->mly_event_counter = mh->next_event; 419144966Svkashyap 420144966Svkashyap /* save the health status into the memory mailbox */ 421144966Svkashyap bcopy(mh, &sc->mly_mmbox->mmm_health.status, sizeof(*mh)); 422144966Svkashyap 423144966Svkashyap debug(1, "initial change counter %d, event counter %d", mh->change_counter, mh->next_event); 424144966Svkashyap 425144966Svkashyap free(mh, M_DEVBUF); 426144966Svkashyap return(0); 427144966Svkashyap} 428144966Svkashyap 429144966Svkashyap/******************************************************************************** 430144966Svkashyap * Enable the memory mailbox mode. 431144966Svkashyap */ 432144966Svkashyapstatic int 433144966Svkashyapmly_enable_mmbox(struct mly_softc *sc) 434144966Svkashyap{ 435144966Svkashyap struct mly_command_ioctl mci; 436144966Svkashyap u_int8_t *sp, status; 437144966Svkashyap int error; 438144966Svkashyap 439144966Svkashyap debug_called(1); 440144966Svkashyap 441144966Svkashyap /* build the ioctl and send it */ 442144966Svkashyap bzero(&mci, sizeof(mci)); 443144966Svkashyap mci.sub_ioctl = MDACIOCTL_SETMEMORYMAILBOX; 444144966Svkashyap /* set buffer addresses */ 445144966Svkashyap mci.param.setmemorymailbox.command_mailbox_physaddr = sc->mly_mmbox_busaddr + fldoff(mly_mmbox, mmm_command); 446144966Svkashyap mci.param.setmemorymailbox.status_mailbox_physaddr = sc->mly_mmbox_busaddr + fldoff(mly_mmbox, mmm_status); 447144966Svkashyap mci.param.setmemorymailbox.health_buffer_physaddr = sc->mly_mmbox_busaddr + fldoff(mly_mmbox, mmm_health); 448144966Svkashyap 449144966Svkashyap /* set buffer sizes - abuse of data_size field is revolting */ 450144966Svkashyap sp = (u_int8_t *)&mci.data_size; 451144966Svkashyap sp[0] = ((sizeof(union mly_command_packet) * MLY_MMBOX_COMMANDS) / 1024); 452144966Svkashyap sp[1] = (sizeof(union mly_status_packet) * MLY_MMBOX_STATUS) / 1024; 453144966Svkashyap mci.param.setmemorymailbox.health_buffer_size = sizeof(union mly_health_region) / 1024; 454144966Svkashyap 455144966Svkashyap debug(1, "memory mailbox at %p (0x%llx/%d 0x%llx/%d 0x%llx/%d", sc->mly_mmbox, 456144966Svkashyap mci.param.setmemorymailbox.command_mailbox_physaddr, sp[0], 457144966Svkashyap mci.param.setmemorymailbox.status_mailbox_physaddr, sp[1], 458144966Svkashyap mci.param.setmemorymailbox.health_buffer_physaddr, mci.param.setmemorymailbox.health_buffer_size); 459144966Svkashyap 460144966Svkashyap if ((error = mly_ioctl(sc, &mci, NULL, 0, &status, NULL, NULL))) 461144966Svkashyap return(error); 462144966Svkashyap if (status != 0) 463144966Svkashyap return(EIO); 464144966Svkashyap sc->mly_state |= MLY_STATE_MMBOX_ACTIVE; 465144966Svkashyap debug(1, "memory mailbox active"); 466144966Svkashyap return(0); 467144966Svkashyap} 468144966Svkashyap 469144966Svkashyap/******************************************************************************** 470144966Svkashyap * Flush all pending I/O from the controller. 471144966Svkashyap */ 472144966Svkashyapstatic int 473144966Svkashyapmly_flush(struct mly_softc *sc) 474144966Svkashyap{ 475144966Svkashyap struct mly_command_ioctl mci; 476144966Svkashyap u_int8_t status; 477144966Svkashyap int error; 478144966Svkashyap 479144966Svkashyap debug_called(1); 480144966Svkashyap 481144966Svkashyap /* build the ioctl */ 482144966Svkashyap bzero(&mci, sizeof(mci)); 483144966Svkashyap mci.sub_ioctl = MDACIOCTL_FLUSHDEVICEDATA; 484144966Svkashyap mci.param.deviceoperation.operation_device = MLY_OPDEVICE_PHYSICAL_CONTROLLER; 485152213Svkashyap 486152213Svkashyap /* pass it off to the controller */ 487152213Svkashyap if ((error = mly_ioctl(sc, &mci, NULL, 0, &status, NULL, NULL))) 488152213Svkashyap return(error); 489152213Svkashyap 490152213Svkashyap return((status == 0) ? 0 : EIO); 491144966Svkashyap} 492144966Svkashyap 493144966Svkashyap/******************************************************************************** 494144966Svkashyap * Perform an ioctl command. 495144966Svkashyap * 496144966Svkashyap * If (data) is not NULL, the command requires data transfer. If (*data) is NULL 497144966Svkashyap * the command requires data transfer from the controller, and we will allocate 498144966Svkashyap * a buffer for it. If (*data) is not NULL, the command requires data transfer 499144966Svkashyap * to the controller. 500144966Svkashyap * 501144966Svkashyap * XXX passing in the whole ioctl structure is ugly. Better ideas? 502144966Svkashyap * 503144966Svkashyap * XXX we don't even try to handle the case where datasize > 4k. We should. 504144966Svkashyap */ 505144966Svkashyapstatic int 506144966Svkashyapmly_ioctl(struct mly_softc *sc, struct mly_command_ioctl *ioctl, void **data, size_t datasize, 507144966Svkashyap u_int8_t *status, void *sense_buffer, size_t *sense_length) 508144966Svkashyap{ 509144966Svkashyap struct mly_command *mc; 510144966Svkashyap struct mly_command_ioctl *mci; 511144966Svkashyap int error; 512144966Svkashyap 513144966Svkashyap debug_called(1); 514144966Svkashyap 515144966Svkashyap mc = NULL; 516144966Svkashyap if (mly_alloc_command(sc, &mc)) { 517144966Svkashyap error = ENOMEM; 518144966Svkashyap goto out; 519144966Svkashyap } 520144966Svkashyap 521144966Svkashyap /* copy the ioctl structure, but save some important fields and then fixup */ 522144966Svkashyap mci = &mc->mc_packet->ioctl; 523144966Svkashyap ioctl->sense_buffer_address = mci->sense_buffer_address; 524144966Svkashyap ioctl->maximum_sense_size = mci->maximum_sense_size; 525144966Svkashyap *mci = *ioctl; 526144966Svkashyap mci->opcode = MDACMD_IOCTL; 527144966Svkashyap mci->timeout.value = 30; 528144966Svkashyap mci->timeout.scale = MLY_TIMEOUT_SECONDS; 529144966Svkashyap 530144966Svkashyap /* handle the data buffer */ 531144966Svkashyap if (data != NULL) { 532144966Svkashyap if (*data == NULL) { 533144966Svkashyap /* allocate data buffer */ 534144966Svkashyap if ((mc->mc_data = malloc(datasize, M_DEVBUF, M_NOWAIT)) == NULL) { 535144966Svkashyap error = ENOMEM; 536144966Svkashyap goto out; 537144966Svkashyap } 538144966Svkashyap mc->mc_flags |= MLY_CMD_DATAIN; 539144966Svkashyap } else { 540152213Svkashyap mc->mc_data = *data; 541144966Svkashyap mc->mc_flags |= MLY_CMD_DATAOUT; 542144966Svkashyap } 543144966Svkashyap mc->mc_length = datasize; 544144966Svkashyap mc->mc_packet->generic.data_size = datasize; 545144966Svkashyap } 546152213Svkashyap 547152213Svkashyap /* run the command */ 548152213Svkashyap if ((error = mly_immediate_command(mc))) 549152213Svkashyap goto out; 550152213Svkashyap 551144966Svkashyap /* clean up and return any data */ 552144966Svkashyap *status = mc->mc_status; 553152213Svkashyap if ((mc->mc_sense > 0) && (sense_buffer != NULL)) { 554152213Svkashyap bcopy(mc->mc_packet, sense_buffer, mc->mc_sense); 555152213Svkashyap *sense_length = mc->mc_sense; 556144966Svkashyap goto out; 557144966Svkashyap } 558144966Svkashyap 559212008Sdelphij /* should we return a data pointer? */ 560212008Sdelphij if ((data != NULL) && (*data == NULL)) 561212008Sdelphij *data = mc->mc_data; 562212008Sdelphij 563144966Svkashyap /* command completed OK */ 564144966Svkashyap error = 0; 565144966Svkashyap 566144966Svkashyapout: 567144966Svkashyap if (mc != NULL) { 568144966Svkashyap /* do we need to free a data buffer we allocated? */ 569197409Srdivacky if (error && (mc->mc_data != NULL) && (*data == NULL)) 570144966Svkashyap free(mc->mc_data, M_DEVBUF); 571144966Svkashyap mly_release_command(mc); 572144966Svkashyap } 573144966Svkashyap return(error); 574144966Svkashyap} 575144966Svkashyap 576144966Svkashyap/******************************************************************************** 577144966Svkashyap * Fetch one event from the controller. 578144966Svkashyap */ 579144966Svkashyapstatic void 580144966Svkashyapmly_fetch_event(struct mly_softc *sc) 581144966Svkashyap{ 582144966Svkashyap struct mly_command *mc; 583144966Svkashyap struct mly_command_ioctl *mci; 584144966Svkashyap int s; 585144966Svkashyap u_int32_t event; 586144966Svkashyap 587144966Svkashyap debug_called(2); 588144966Svkashyap 589144966Svkashyap /* get a command */ 590144966Svkashyap mc = NULL; 591144966Svkashyap if (mly_alloc_command(sc, &mc)) 592144966Svkashyap return; /* we'll get retried the next time a command completes */ 593144966Svkashyap 594144966Svkashyap /* set up the data buffer */ 595144966Svkashyap if ((mc->mc_data = malloc(sizeof(struct mly_event), M_DEVBUF, M_NOWAIT)) == NULL) { 596144966Svkashyap mly_release_command(mc); 597144966Svkashyap return; /* we'll get retried the next time a command completes */ 598144966Svkashyap } 599144966Svkashyap bzero(mc->mc_data, sizeof(struct mly_event)); 600144966Svkashyap mc->mc_length = sizeof(struct mly_event); 601152213Svkashyap mc->mc_flags |= MLY_CMD_DATAIN; 602152213Svkashyap mc->mc_complete = mly_complete_event; 603144966Svkashyap 604 /* 605 * Get an event number to fetch. It's possible that we've raced with another 606 * context for the last event, in which case there will be no more events. 607 */ 608 s = splcam(); 609 if (sc->mly_event_counter == sc->mly_event_waiting) { 610 mly_release_command(mc); 611 splx(s); 612 return; 613 } 614 event = sc->mly_event_counter++; 615 splx(s); 616 617 /* 618 * Build the ioctl. 619 * 620 * At this point we are committed to sending this request, as it 621 * will be the only one constructed for this particular event number. 622 */ 623 mci = (struct mly_command_ioctl *)&mc->mc_packet->ioctl; 624 mci->opcode = MDACMD_IOCTL; 625 mci->data_size = sizeof(struct mly_event); 626 mci->addr.phys.lun = (event >> 16) & 0xff; 627 mci->addr.phys.target = (event >> 24) & 0xff; 628 mci->addr.phys.channel = 0; 629 mci->addr.phys.controller = 0; 630 mci->timeout.value = 30; 631 mci->timeout.scale = MLY_TIMEOUT_SECONDS; 632 mci->sub_ioctl = MDACIOCTL_GETEVENT; 633 mci->param.getevent.sequence_number_low = event & 0xffff; 634 635 debug(2, "fetch event %u", event); 636 637 /* 638 * Use the ready queue to get this command dispatched. 639 */ 640 mly_enqueue_ready(mc); 641 mly_startio(sc); 642} 643 644/******************************************************************************** 645 * Handle the completion of an event poll. 646 * 647 * Note that we don't actually have to instigate another poll; the completion of 648 * this command will trigger that if there are any more events to poll for. 649 */ 650static void 651mly_complete_event(struct mly_command *mc) 652{ 653 struct mly_softc *sc = mc->mc_sc; 654 struct mly_event *me = (struct mly_event *)mc->mc_data; 655 656 debug_called(2); 657 658 /* 659 * If the event was successfully fetched, process it. 660 */ 661 if (mc->mc_status == SCSI_STATUS_OK) { 662 mly_process_event(sc, me); 663 free(me, M_DEVBUF); 664 } 665 mly_release_command(mc); 666} 667 668/******************************************************************************** 669 * Process a controller event. 670 */ 671static void 672mly_process_event(struct mly_softc *sc, struct mly_event *me) 673{ 674 struct scsi_sense_data *ssd = (struct scsi_sense_data *)&me->sense[0]; 675 char *fp, *tp; 676 int bus, target, event, class, action; 677 678 /* 679 * Errors can be reported using vendor-unique sense data. In this case, the 680 * event code will be 0x1c (Request sense data present), the sense key will 681 * be 0x09 (vendor specific), the MSB of the ASC will be set, and the 682 * actual event code will be a 16-bit value comprised of the ASCQ (low byte) 683 * and low seven bits of the ASC (low seven bits of the high byte). 684 */ 685 if ((me->code == 0x1c) && 686 ((ssd->flags & SSD_KEY) == SSD_KEY_Vendor_Specific) && 687 (ssd->add_sense_code & 0x80)) { 688 event = ((int)(ssd->add_sense_code & ~0x80) << 8) + ssd->add_sense_code_qual; 689 } else { 690 event = me->code; 691 } 692 693 /* look up event, get codes */ 694 fp = mly_describe_code(mly_table_event, event); 695 696 debug(2, "Event %d code 0x%x", me->sequence_number, me->code); 697 698 /* quiet event? */ 699 class = fp[0]; 700 if (isupper(class) && bootverbose) 701 class = tolower(class); 702 703 /* get action code, text string */ 704 action = fp[1]; 705 tp = &fp[2]; 706 707 /* 708 * Print some information about the event. 709 * 710 * This code uses a table derived from the corresponding portion of the Linux 711 * driver, and thus the parser is very similar. 712 */ 713 switch(class) { 714 case 'p': /* error on physical device */ 715 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp); 716 if (action == 'r') 717 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN; 718 break; 719 case 'l': /* error on logical unit */ 720 case 'm': /* message about logical unit */ 721 bus = MLY_LOGDEV_BUS(sc, me->lun); 722 target = MLY_LOGDEV_TARGET(me->lun); 723 mly_name_device(sc, bus, target); 724 mly_printf(sc, "logical device %d (%s) %s\n", me->lun, sc->mly_btl[bus][target].mb_name, tp); 725 if (action == 'r') 726 sc->mly_btl[bus][target].mb_flags |= MLY_BTL_RESCAN; 727 break; 728 break; 729 case 's': /* report of sense data */ 730 if (((ssd->flags & SSD_KEY) == SSD_KEY_NO_SENSE) || 731 (((ssd->flags & SSD_KEY) == SSD_KEY_NOT_READY) && 732 (ssd->add_sense_code == 0x04) && 733 ((ssd->add_sense_code_qual == 0x01) || (ssd->add_sense_code_qual == 0x02)))) 734 break; /* ignore NO_SENSE or NOT_READY in one case */ 735 736 mly_printf(sc, "physical device %d:%d %s\n", me->channel, me->target, tp); 737 mly_printf(sc, " sense key %d asc %02x ascq %02x\n", 738 ssd->flags & SSD_KEY, ssd->add_sense_code, ssd->add_sense_code_qual); 739 mly_printf(sc, " info %4D csi %4D\n", ssd->info, "", ssd->cmd_spec_info, ""); 740 if (action == 'r') 741 sc->mly_btl[me->channel][me->target].mb_flags |= MLY_BTL_RESCAN; 742 break; 743 case 'e': 744 mly_printf(sc, tp, me->target, me->lun); 745 break; 746 case 'c': 747 mly_printf(sc, "controller %s\n", tp); 748 break; 749 case '?': 750 mly_printf(sc, "%s - %d\n", tp, me->code); 751 break; 752 default: /* probably a 'noisy' event being ignored */ 753 break; 754 } 755} 756 757/******************************************************************************** 758 * Perform periodic activities. 759 */ 760static void 761mly_periodic(void *data) 762{ 763 struct mly_softc *sc = (struct mly_softc *)data; 764 int nchn, bus, target; 765 766 debug_called(2); 767 768 /* 769 * Scan devices. 770 */ 771 nchn = sc->mly_controllerinfo->physical_channels_present + 772 sc->mly_controllerinfo->virtual_channels_present; 773 for (bus = 0; bus < nchn; bus++) { 774 for (target = 0; target < MLY_MAX_TARGETS; target++) { 775 776 /* ignore the controller in this scan */ 777 if (target == sc->mly_controllerparam->initiator_id) 778 continue; 779 780 /* perform device rescan? */ 781 if (sc->mly_btl[bus][target].mb_flags & MLY_BTL_RESCAN) 782 mly_rescan_btl(sc, bus, target); 783 } 784 } 785 786 sc->mly_periodic = timeout(mly_periodic, sc, hz); 787} 788 789/******************************************************************************** 790 ******************************************************************************** 791 Command Processing 792 ******************************************************************************** 793 ********************************************************************************/ 794 795/******************************************************************************** 796 * Run a command and wait for it to complete. 797 * 798 */ 799static int 800mly_immediate_command(struct mly_command *mc) 801{ 802 struct mly_softc *sc = mc->mc_sc; 803 int error, s; 804 805 debug_called(2); 806 807 /* spinning at splcam is ugly, but we're only used during controller init */ 808 s = splcam(); 809 if ((error = mly_start(mc))) 810 return(error); 811 812 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON) { 813 /* sleep on the command */ 814 while(MLY_CMD_STATE(mc) != MLY_CMD_COMPLETE) { 815 tsleep(mc, PRIBIO, "mlywait", 0); 816 } 817 } else { 818 /* spin and collect status while we do */ 819 while(MLY_CMD_STATE(mc) != MLY_CMD_COMPLETE) 820 mly_done(mc->mc_sc); 821 } 822 splx(s); 823 return(0); 824} 825 826/******************************************************************************** 827 * Start as much queued I/O as possible on the controller 828 */ 829void 830mly_startio(struct mly_softc *sc) 831{ 832 struct mly_command *mc; 833 834 debug_called(2); 835 836 for (;;) { 837 838 /* try for a ready command */ 839 mc = mly_dequeue_ready(sc); 840 841 /* try to build a command from a queued ccb */ 842 if (!mc) 843 mly_cam_command(sc, &mc); 844 845 /* no command == nothing to do */ 846 if (!mc) 847 break; 848 849 /* try to post the command */ 850 if (mly_start(mc)) { 851 /* controller busy, or no resources - defer for later */ 852 mly_requeue_ready(mc); 853 break; 854 } 855 } 856} 857 858/******************************************************************************** 859 * Deliver a command to the controller; allocate controller resources at the 860 * last moment. 861 */ 862static int 863mly_start(struct mly_command *mc) 864{ 865 struct mly_softc *sc = mc->mc_sc; 866 union mly_command_packet *pkt; 867 int s; 868 869 debug_called(2); 870 871 /* 872 * Set the command up for delivery to the controller. This may fail 873 * due to resource shortages. 874 */ 875 if (mly_get_slot(mc)) 876 return(EBUSY); 877 mly_map_command(mc); 878 879 s = splcam(); 880 /* 881 * Do we have to use the hardware mailbox? 882 */ 883 if (!(sc->mly_state & MLY_STATE_MMBOX_ACTIVE)) { 884 /* 885 * Check to see if the controller is ready for us. 886 */ 887 if (MLY_IDBR_TRUE(sc, MLY_HM_CMDSENT)) { 888 splx(s); 889 return(EBUSY); 890 } 891 892 /* 893 * It's ready, send the command. 894 */ 895 MLY_SET_MBOX(sc, sc->mly_command_mailbox, &mc->mc_packetphys); 896 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_CMDSENT); 897 898 } else { /* use memory-mailbox mode */ 899 900 pkt = &sc->mly_mmbox->mmm_command[sc->mly_mmbox_command_index]; 901 902 /* check to see if the next slot is free yet */ 903 if (pkt->mmbox.flag != 0) { 904 splx(s); 905 return(EBUSY); 906 } 907 908 /* copy in new command */ 909 bcopy(mc->mc_packet->mmbox.data, pkt->mmbox.data, sizeof(pkt->mmbox.data)); 910 /* barrier to ensure completion of previous write before we write the flag */ 911 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle? */ 912 /* copy flag last */ 913 pkt->mmbox.flag = mc->mc_packet->mmbox.flag; 914 /* barrier to ensure completion of previous write before we notify the controller */ 915 bus_space_barrier(NULL, NULL, 0, 0, BUS_SPACE_BARRIER_WRITE); /* tag/handle */ 916 917 /* signal controller, update index */ 918 MLY_SET_REG(sc, sc->mly_idbr, MLY_AM_CMDSENT); 919 sc->mly_mmbox_command_index = (sc->mly_mmbox_command_index + 1) % MLY_MMBOX_COMMANDS; 920 } 921 922 splx(s); 923 return(0); 924} 925 926/******************************************************************************** 927 * Pick up command status from the controller, schedule a completion event 928 */ 929void 930mly_done(struct mly_softc *sc) 931{ 932 struct mly_command *mc; 933 union mly_status_packet *sp; 934 u_int16_t slot; 935 int s, worked; 936 937 s = splcam(); 938 worked = 0; 939 940 /* pick up hardware-mailbox commands */ 941 if (MLY_ODBR_TRUE(sc, MLY_HM_STSREADY)) { 942 slot = MLY_GET_REG2(sc, sc->mly_status_mailbox); 943 if (slot < MLY_SLOT_MAX) { 944 mc = sc->mly_busycmds[slot]; 945 if (mc != NULL) { 946 mc->mc_status = MLY_GET_REG(sc, sc->mly_status_mailbox + 2); 947 mc->mc_sense = MLY_GET_REG(sc, sc->mly_status_mailbox + 3); 948 mc->mc_resid = MLY_GET_REG4(sc, sc->mly_status_mailbox + 4); 949 mly_enqueue_completed(mc); 950 sc->mly_busycmds[slot] = NULL; 951 worked = 1; 952 } else { 953 mly_printf(sc, "got HM completion for nonbusy slot %u\n", slot); 954 } 955 } else { 956 /* slot 0xffff may mean "extremely bogus command" */ 957 mly_printf(sc, "got HM completion for illegal slot %u\n", slot); 958 } 959 /* unconditionally acknowledge status */ 960 MLY_SET_REG(sc, sc->mly_odbr, MLY_HM_STSREADY); 961 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK); 962 } 963 964 /* pick up memory-mailbox commands */ 965 if (MLY_ODBR_TRUE(sc, MLY_AM_STSREADY)) { 966 for (;;) { 967 sp = &sc->mly_mmbox->mmm_status[sc->mly_mmbox_status_index]; 968 969 /* check for more status */ 970 if (sp->mmbox.flag == 0) 971 break; 972 973 /* get slot number */ 974 slot = sp->status.command_id; 975 if (slot < MLY_SLOT_MAX) { 976 mc = sc->mly_busycmds[slot]; 977 if (mc != NULL) { 978 mc->mc_status = sp->status.status; 979 mc->mc_sense = sp->status.sense_length; 980 mc->mc_resid = sp->status.residue; 981 mly_enqueue_completed(mc); 982 sc->mly_busycmds[slot] = NULL; 983 worked = 1; 984 } else { 985 mly_printf(sc, "got AM completion for nonbusy slot %u\n", slot); 986 } 987 } else { 988 /* slot 0xffff may mean "extremely bogus command" */ 989 mly_printf(sc, "got AM completion for illegal slot %u at %d\n", slot, sc->mly_mmbox_status_index); 990 } 991 992 /* clear and move to next slot */ 993 sp->mmbox.flag = 0; 994 sc->mly_mmbox_status_index = (sc->mly_mmbox_status_index + 1) % MLY_MMBOX_STATUS; 995 } 996 /* acknowledge that we have collected status value(s) */ 997 MLY_SET_REG(sc, sc->mly_odbr, MLY_AM_STSREADY); 998 } 999 1000 splx(s); 1001 if (worked) { 1002#if __FreeBSD_version >= 500005 1003 if (sc->mly_state & MLY_STATE_INTERRUPTS_ON) 1004 taskqueue_enqueue(taskqueue_swi, &sc->mly_task_complete); 1005 else 1006#endif 1007 mly_complete(sc, 0); 1008 } 1009} 1010 1011/******************************************************************************** 1012 * Process completed commands 1013 */ 1014static void 1015mly_complete(void *context, int pending) 1016{ 1017 struct mly_softc *sc = (struct mly_softc *)context; 1018 struct mly_command *mc; 1019 void (* mc_complete)(struct mly_command *mc); 1020 1021 1022 debug_called(2); 1023 1024 /* 1025 * Spin pulling commands off the completed queue and processing them. 1026 */ 1027 while ((mc = mly_dequeue_completed(sc)) != NULL) { 1028 1029 /* 1030 * Free controller resources, mark command complete. 1031 * 1032 * Note that as soon as we mark the command complete, it may be freed 1033 * out from under us, so we need to save the mc_complete field in 1034 * order to later avoid dereferencing mc. (We would not expect to 1035 * have a polling/sleeping consumer with mc_complete != NULL). 1036 */ 1037 mly_unmap_command(mc); 1038 mc_complete = mc->mc_complete; 1039 MLY_CMD_SETSTATE(mc, MLY_CMD_COMPLETE); 1040 1041 /* 1042 * Call completion handler or wake up sleeping consumer. 1043 */ 1044 if (mc_complete != NULL) { 1045 mc_complete(mc); 1046 } else { 1047 wakeup(mc); 1048 } 1049 } 1050 1051 /* 1052 * We may have freed up controller resources which would allow us 1053 * to push more commands onto the controller, so we check here. 1054 */ 1055 mly_startio(sc); 1056 1057 /* 1058 * The controller may have updated the health status information, 1059 * so check for it here. 1060 * 1061 * Note that we only check for health status after a completed command. It 1062 * might be wise to ping the controller occasionally if it's been idle for 1063 * a while just to check up on it. While a filesystem is mounted, or I/O is 1064 * active this isn't really an issue. 1065 */ 1066 if (sc->mly_mmbox->mmm_health.status.change_counter != sc->mly_event_change) { 1067 sc->mly_event_change = sc->mly_mmbox->mmm_health.status.change_counter; 1068 debug(1, "event change %d, event status update, %d -> %d", sc->mly_event_change, 1069 sc->mly_event_waiting, sc->mly_mmbox->mmm_health.status.next_event); 1070 sc->mly_event_waiting = sc->mly_mmbox->mmm_health.status.next_event; 1071 } 1072 if (sc->mly_event_counter != sc->mly_event_waiting) 1073 mly_fetch_event(sc); 1074} 1075 1076/******************************************************************************** 1077 ******************************************************************************** 1078 Command Buffer Management 1079 ******************************************************************************** 1080 ********************************************************************************/ 1081 1082/******************************************************************************** 1083 * Give a command a slot in our lookup table, so that we can recover it when 1084 * the controller returns the slot number. 1085 * 1086 * Slots are freed in mly_done(). 1087 */ 1088static int 1089mly_get_slot(struct mly_command *mc) 1090{ 1091 struct mly_softc *sc = mc->mc_sc; 1092 u_int16_t slot; 1093 int tries; 1094 1095 debug_called(3); 1096 1097 if (mc->mc_flags & MLY_CMD_SLOTTED) 1098 return(0); 1099 1100 /* 1101 * Optimisation for the controller-busy case - check to see whether 1102 * we are already over the limit and stop immediately. 1103 */ 1104 if (sc->mly_busy_count >= sc->mly_max_commands) 1105 return(EBUSY); 1106 1107 /* 1108 * Scan forward from the last slot that we assigned looking for a free 1109 * slot. Don't scan more than the maximum number of commands that we 1110 * support (we should never reach the limit here due to the optimisation 1111 * above) 1112 */ 1113 slot = sc->mly_last_slot; 1114 for (tries = sc->mly_max_commands; tries > 0; tries--) { 1115 if (sc->mly_busycmds[slot] == NULL) { 1116 sc->mly_busycmds[slot] = mc; 1117 mc->mc_slot = slot; 1118 mc->mc_packet->generic.command_id = slot; 1119 mc->mc_flags |= MLY_CMD_SLOTTED; 1120 sc->mly_last_slot = slot; 1121 return(0); 1122 } 1123 slot++; 1124 if (slot >= MLY_SLOT_MAX) 1125 slot = MLY_SLOT_START; 1126 } 1127 return(EBUSY); 1128} 1129 1130/******************************************************************************** 1131 * Allocate a command. 1132 */ 1133int 1134mly_alloc_command(struct mly_softc *sc, struct mly_command **mcp) 1135{ 1136 struct mly_command *mc; 1137 1138 debug_called(3); 1139 1140 if ((mc = mly_dequeue_free(sc)) == NULL) { 1141 mly_alloc_command_cluster(sc); 1142 mc = mly_dequeue_free(sc); 1143 } 1144 if (mc != NULL) 1145 TAILQ_REMOVE(&sc->mly_freecmds, mc, mc_link); 1146 1147 if (mc == NULL) 1148 return(ENOMEM); 1149 1150 MLY_CMD_SETSTATE(mc, MLY_CMD_SETUP); 1151 *mcp = mc; 1152 return(0); 1153} 1154 1155/******************************************************************************** 1156 * Release a command back to the freelist. 1157 */ 1158void 1159mly_release_command(struct mly_command *mc) 1160{ 1161 debug_called(3); 1162 1163 /* 1164 * Fill in parts of the command that may cause confusion if 1165 * a consumer doesn't when we are later allocated. 1166 */ 1167 MLY_CMD_SETSTATE(mc, MLY_CMD_FREE); 1168 mc->mc_data = NULL; 1169 mc->mc_flags = 0; 1170 mc->mc_complete = NULL; 1171 mc->mc_private = NULL; 1172 1173 /* 1174 * By default, we set up to overwrite the command packet with 1175 * sense information. 1176 */ 1177 mc->mc_packet->generic.sense_buffer_address = mc->mc_packetphys; 1178 mc->mc_packet->generic.maximum_sense_size = sizeof(union mly_command_packet); 1179 1180 mly_enqueue_free(mc); 1181} 1182 1183/******************************************************************************** 1184 * Map helper for command cluster allocation. 1185 * 1186 * Note that there are never more command packets in a cluster than will fit in 1187 * a page, so there is no need to look at anything other than the base of the 1188 * allocation (which will be page-aligned). 1189 */ 1190static void 1191mly_alloc_command_cluster_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1192{ 1193 struct mly_command_cluster *mcc = (struct mly_command_cluster *)arg; 1194 1195 debug_called(2); 1196 1197 mcc->mcc_packetphys = segs[0].ds_addr; 1198} 1199 1200/******************************************************************************** 1201 * Allocate and initialise a cluster of commands. 1202 */ 1203static void 1204mly_alloc_command_cluster(struct mly_softc *sc) 1205{ 1206 struct mly_command_cluster *mcc; 1207 struct mly_command *mc; 1208 int i; 1209 1210 debug_called(1); 1211 1212 mcc = malloc(sizeof(struct mly_command_cluster), M_DEVBUF, M_NOWAIT); 1213 if (mcc != NULL) { 1214 1215 /* 1216 * Allocate enough space for all the command packets for this cluster and 1217 * map them permanently into controller-visible space. 1218 */ 1219 if (bus_dmamem_alloc(sc->mly_packet_dmat, (void **)&mcc->mcc_packet, 1220 BUS_DMA_NOWAIT, &mcc->mcc_packetmap)) { 1221 free(mcc, M_DEVBUF); 1222 return; 1223 } 1224 bus_dmamap_load(sc->mly_packet_dmat, mcc->mcc_packetmap, mcc->mcc_packet, 1225 MLY_CMD_CLUSTERCOUNT * sizeof(union mly_command_packet), 1226 mly_alloc_command_cluster_map, mcc, 0); 1227 1228 mly_enqueue_cluster(sc, mcc); 1229 for (i = 0; i < MLY_CMD_CLUSTERCOUNT; i++) { 1230 mc = &mcc->mcc_command[i]; 1231 bzero(mc, sizeof(*mc)); 1232 mc->mc_sc = sc; 1233 mc->mc_packet = mcc->mcc_packet + i; 1234 mc->mc_packetphys = mcc->mcc_packetphys + (i * sizeof(union mly_command_packet)); 1235 if (!bus_dmamap_create(sc->mly_buffer_dmat, 0, &mc->mc_datamap)) 1236 mly_release_command(mc); 1237 } 1238 } 1239} 1240 1241/******************************************************************************** 1242 * Command-mapping helper function - populate this command slot's s/g table 1243 * with the s/g entries for this command. 1244 */ 1245static void 1246mly_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1247{ 1248 struct mly_command *mc = (struct mly_command *)arg; 1249 struct mly_softc *sc = mc->mc_sc; 1250 struct mly_command_generic *gen = &(mc->mc_packet->generic); 1251 struct mly_sg_entry *sg; 1252 int i, tabofs; 1253 1254 debug_called(3); 1255 1256 /* can we use the transfer structure directly? */ 1257 if (nseg <= 2) { 1258 sg = &gen->transfer.direct.sg[0]; 1259 gen->command_control.extended_sg_table = 0; 1260 } else { 1261 tabofs = (mc->mc_slot * MLY_MAXSGENTRIES); 1262 sg = sc->mly_sg_table + tabofs; 1263 gen->transfer.indirect.entries[0] = nseg; 1264 gen->transfer.indirect.table_physaddr[0] = sc->mly_sg_busaddr + (tabofs * sizeof(struct mly_sg_entry)); 1265 gen->command_control.extended_sg_table = 1; 1266 } 1267 1268 /* copy the s/g table */ 1269 for (i = 0; i < nseg; i++) { 1270 sg[i].physaddr = segs[i].ds_addr; 1271 sg[i].length = segs[i].ds_len; 1272 } 1273 1274} 1275 1276#if 0 1277/******************************************************************************** 1278 * Command-mapping helper function - save the cdb's physical address. 1279 * 1280 * We don't support 'large' SCSI commands at this time, so this is unused. 1281 */ 1282static void 1283mly_map_command_cdb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1284{ 1285 struct mly_command *mc = (struct mly_command *)arg; 1286 1287 debug_called(3); 1288 1289 /* XXX can we safely assume that a CDB will never cross a page boundary? */ 1290 if ((segs[0].ds_addr % PAGE_SIZE) > 1291 ((segs[0].ds_addr + mc->mc_packet->scsi_large.cdb_length) % PAGE_SIZE)) 1292 panic("cdb crosses page boundary"); 1293 1294 /* fix up fields in the command packet */ 1295 mc->mc_packet->scsi_large.cdb_physaddr = segs[0].ds_addr; 1296} 1297#endif 1298 1299/******************************************************************************** 1300 * Map a command into controller-visible space 1301 */ 1302static void 1303mly_map_command(struct mly_command *mc) 1304{ 1305 struct mly_softc *sc = mc->mc_sc; 1306 1307 debug_called(2); 1308 1309 /* don't map more than once */ 1310 if (mc->mc_flags & MLY_CMD_MAPPED) 1311 return; 1312 1313 /* does the command have a data buffer? */ 1314 if (mc->mc_data != NULL) 1315 bus_dmamap_load(sc->mly_buffer_dmat, mc->mc_datamap, mc->mc_data, mc->mc_length, 1316 mly_map_command_sg, mc, 0); 1317 1318 if (mc->mc_flags & MLY_CMD_DATAIN) 1319 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREREAD); 1320 if (mc->mc_flags & MLY_CMD_DATAOUT) 1321 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_PREWRITE); 1322 1323 mc->mc_flags |= MLY_CMD_MAPPED; 1324} 1325 1326/******************************************************************************** 1327 * Unmap a command from controller-visible space 1328 */ 1329static void 1330mly_unmap_command(struct mly_command *mc) 1331{ 1332 struct mly_softc *sc = mc->mc_sc; 1333 1334 debug_called(2); 1335 1336 if (!(mc->mc_flags & MLY_CMD_MAPPED)) 1337 return; 1338 1339 if (mc->mc_flags & MLY_CMD_DATAIN) 1340 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTREAD); 1341 if (mc->mc_flags & MLY_CMD_DATAOUT) 1342 bus_dmamap_sync(sc->mly_buffer_dmat, mc->mc_datamap, BUS_DMASYNC_POSTWRITE); 1343 1344 /* does the command have a data buffer? */ 1345 if (mc->mc_data != NULL) 1346 bus_dmamap_unload(sc->mly_buffer_dmat, mc->mc_datamap); 1347 1348 mc->mc_flags &= ~MLY_CMD_MAPPED; 1349} 1350 1351/******************************************************************************** 1352 ******************************************************************************** 1353 Hardware Control 1354 ******************************************************************************** 1355 ********************************************************************************/ 1356 1357/******************************************************************************** 1358 * Handshake with the firmware while the card is being initialised. 1359 */ 1360static int 1361mly_fwhandshake(struct mly_softc *sc) 1362{ 1363 u_int8_t error, param0, param1; 1364 int spinup = 0; 1365 1366 debug_called(1); 1367 1368 /* set HM_STSACK and let the firmware initialise */ 1369 MLY_SET_REG(sc, sc->mly_idbr, MLY_HM_STSACK); 1370 DELAY(1000); /* too short? */ 1371 1372 /* if HM_STSACK is still true, the controller is initialising */ 1373 if (!MLY_IDBR_TRUE(sc, MLY_HM_STSACK)) 1374 return(0); 1375 mly_printf(sc, "controller initialisation started\n"); 1376 1377 /* spin waiting for initialisation to finish, or for a message to be delivered */ 1378 while (MLY_IDBR_TRUE(sc, MLY_HM_STSACK)) { 1379 /* check for a message */ 1380 if (MLY_ERROR_VALID(sc)) { 1381 error = MLY_GET_REG(sc, sc->mly_error_status) & ~MLY_MSG_EMPTY; 1382 param0 = MLY_GET_REG(sc, sc->mly_command_mailbox); 1383 param1 = MLY_GET_REG(sc, sc->mly_command_mailbox + 1); 1384 1385 switch(error) { 1386 case MLY_MSG_SPINUP: 1387 if (!spinup) { 1388 mly_printf(sc, "drive spinup in progress\n"); 1389 spinup = 1; /* only print this once (should print drive being spun?) */ 1390 } 1391 break; 1392 case MLY_MSG_RACE_RECOVERY_FAIL: 1393 mly_printf(sc, "mirror race recovery failed, one or more drives offline\n"); 1394 break; 1395 case MLY_MSG_RACE_IN_PROGRESS: 1396 mly_printf(sc, "mirror race recovery in progress\n"); 1397 break; 1398 case MLY_MSG_RACE_ON_CRITICAL: 1399 mly_printf(sc, "mirror race recovery on a critical drive\n"); 1400 break; 1401 case MLY_MSG_PARITY_ERROR: 1402 mly_printf(sc, "FATAL MEMORY PARITY ERROR\n"); 1403 return(ENXIO); 1404 default: 1405 mly_printf(sc, "unknown initialisation code 0x%x\n", error); 1406 } 1407 } 1408 } 1409 return(0); 1410} 1411 1412/******************************************************************************** 1413 ******************************************************************************** 1414 Debugging and Diagnostics 1415 ******************************************************************************** 1416 ********************************************************************************/ 1417 1418/******************************************************************************** 1419 * Print some information about the controller. 1420 */ 1421static void 1422mly_describe_controller(struct mly_softc *sc) 1423{ 1424 struct mly_ioctl_getcontrollerinfo *mi = sc->mly_controllerinfo; 1425 1426 mly_printf(sc, "%16s, %d channel%s, firmware %d.%02d-%d-%02d (%02d%02d%02d%02d), %dMB RAM\n", 1427 mi->controller_name, mi->physical_channels_present, (mi->physical_channels_present) > 1 ? "s" : "", 1428 mi->fw_major, mi->fw_minor, mi->fw_turn, mi->fw_build, /* XXX turn encoding? */ 1429 mi->fw_century, mi->fw_year, mi->fw_month, mi->fw_day, 1430 mi->memory_size); 1431 1432 if (bootverbose) { 1433 mly_printf(sc, "%s %s (%x), %dMHz %d-bit %.16s\n", 1434 mly_describe_code(mly_table_oemname, mi->oem_information), 1435 mly_describe_code(mly_table_controllertype, mi->controller_type), mi->controller_type, 1436 mi->interface_speed, mi->interface_width, mi->interface_name); 1437 mly_printf(sc, "%dMB %dMHz %d-bit %s%s%s, cache %dMB\n", 1438 mi->memory_size, mi->memory_speed, mi->memory_width, 1439 mly_describe_code(mly_table_memorytype, mi->memory_type), 1440 mi->memory_parity ? "+parity": "",mi->memory_ecc ? "+ECC": "", 1441 mi->cache_size); 1442 mly_printf(sc, "CPU: %s @ %dMHZ\n", 1443 mly_describe_code(mly_table_cputype, mi->cpu[0].type), mi->cpu[0].speed); 1444 if (mi->l2cache_size != 0) 1445 mly_printf(sc, "%dKB L2 cache\n", mi->l2cache_size); 1446 if (mi->exmemory_size != 0) 1447 mly_printf(sc, "%dMB %dMHz %d-bit private %s%s%s\n", 1448 mi->exmemory_size, mi->exmemory_speed, mi->exmemory_width, 1449 mly_describe_code(mly_table_memorytype, mi->exmemory_type), 1450 mi->exmemory_parity ? "+parity": "",mi->exmemory_ecc ? "+ECC": ""); 1451 mly_printf(sc, "battery backup %s\n", mi->bbu_present ? "present" : "not installed"); 1452 mly_printf(sc, "maximum data transfer %d blocks, maximum sg entries/command %d\n", 1453 mi->maximum_block_count, mi->maximum_sg_entries); 1454 mly_printf(sc, "logical devices present/critical/offline %d/%d/%d\n", 1455 mi->logical_devices_present, mi->logical_devices_critical, mi->logical_devices_offline); 1456 mly_printf(sc, "physical devices present %d\n", 1457 mi->physical_devices_present); 1458 mly_printf(sc, "physical disks present/offline %d/%d\n", 1459 mi->physical_disks_present, mi->physical_disks_offline); 1460 mly_printf(sc, "%d physical channel%s, %d virtual channel%s of %d possible\n", 1461 mi->physical_channels_present, mi->physical_channels_present == 1 ? "" : "s", 1462 mi->virtual_channels_present, mi->virtual_channels_present == 1 ? "" : "s", 1463 mi->virtual_channels_possible); 1464 mly_printf(sc, "%d parallel commands supported\n", mi->maximum_parallel_commands); 1465 mly_printf(sc, "%dMB flash ROM, %d of %d maximum cycles\n", 1466 mi->flash_size, mi->flash_age, mi->flash_maximum_age); 1467 } 1468} 1469 1470#ifdef MLY_DEBUG 1471/******************************************************************************** 1472 * Print some controller state 1473 */ 1474static void 1475mly_printstate(struct mly_softc *sc) 1476{ 1477 mly_printf(sc, "IDBR %02x ODBR %02x ERROR %02x (%x %x %x)\n", 1478 MLY_GET_REG(sc, sc->mly_idbr), 1479 MLY_GET_REG(sc, sc->mly_odbr), 1480 MLY_GET_REG(sc, sc->mly_error_status), 1481 sc->mly_idbr, 1482 sc->mly_odbr, 1483 sc->mly_error_status); 1484 mly_printf(sc, "IMASK %02x ISTATUS %02x\n", 1485 MLY_GET_REG(sc, sc->mly_interrupt_mask), 1486 MLY_GET_REG(sc, sc->mly_interrupt_status)); 1487 mly_printf(sc, "COMMAND %02x %02x %02x %02x %02x %02x %02x %02x\n", 1488 MLY_GET_REG(sc, sc->mly_command_mailbox), 1489 MLY_GET_REG(sc, sc->mly_command_mailbox + 1), 1490 MLY_GET_REG(sc, sc->mly_command_mailbox + 2), 1491 MLY_GET_REG(sc, sc->mly_command_mailbox + 3), 1492 MLY_GET_REG(sc, sc->mly_command_mailbox + 4), 1493 MLY_GET_REG(sc, sc->mly_command_mailbox + 5), 1494 MLY_GET_REG(sc, sc->mly_command_mailbox + 6), 1495 MLY_GET_REG(sc, sc->mly_command_mailbox + 7)); 1496 mly_printf(sc, "STATUS %02x %02x %02x %02x %02x %02x %02x %02x\n", 1497 MLY_GET_REG(sc, sc->mly_status_mailbox), 1498 MLY_GET_REG(sc, sc->mly_status_mailbox + 1), 1499 MLY_GET_REG(sc, sc->mly_status_mailbox + 2), 1500 MLY_GET_REG(sc, sc->mly_status_mailbox + 3), 1501 MLY_GET_REG(sc, sc->mly_status_mailbox + 4), 1502 MLY_GET_REG(sc, sc->mly_status_mailbox + 5), 1503 MLY_GET_REG(sc, sc->mly_status_mailbox + 6), 1504 MLY_GET_REG(sc, sc->mly_status_mailbox + 7)); 1505 mly_printf(sc, " %04x %08x\n", 1506 MLY_GET_REG2(sc, sc->mly_status_mailbox), 1507 MLY_GET_REG4(sc, sc->mly_status_mailbox + 4)); 1508} 1509 1510struct mly_softc *mly_softc0 = NULL; 1511void 1512mly_printstate0(void) 1513{ 1514 if (mly_softc0 != NULL) 1515 mly_printstate(mly_softc0); 1516} 1517 1518/******************************************************************************** 1519 * Print a command 1520 */ 1521static void 1522mly_print_command(struct mly_command *mc) 1523{ 1524 struct mly_softc *sc = mc->mc_sc; 1525 1526 mly_printf(sc, "COMMAND @ %p\n", mc); 1527 mly_printf(sc, " slot %d\n", mc->mc_slot); 1528 mly_printf(sc, " state %d\n", MLY_CMD_STATE(mc)); 1529 mly_printf(sc, " status 0x%x\n", mc->mc_status); 1530 mly_printf(sc, " sense len %d\n", mc->mc_sense); 1531 mly_printf(sc, " resid %d\n", mc->mc_resid); 1532 mly_printf(sc, " packet %p/0x%llx\n", mc->mc_packet, mc->mc_packetphys); 1533 if (mc->mc_packet != NULL) 1534 mly_print_packet(mc); 1535 mly_printf(sc, " data %p/%d\n", mc->mc_data, mc->mc_length); 1536 mly_printf(sc, " flags %b\n", mc->mc_flags, "\20\11slotted\12mapped\13priority\14datain\15dataout\n"); 1537 mly_printf(sc, " complete %p\n", mc->mc_complete); 1538 mly_printf(sc, " private %p\n", mc->mc_private); 1539} 1540 1541/******************************************************************************** 1542 * Print a command packet 1543 */ 1544static void 1545mly_print_packet(struct mly_command *mc) 1546{ 1547 struct mly_softc *sc = mc->mc_sc; 1548 struct mly_command_generic *ge = (struct mly_command_generic *)mc->mc_packet; 1549 struct mly_command_scsi_small *ss = (struct mly_command_scsi_small *)mc->mc_packet; 1550 struct mly_command_scsi_large *sl = (struct mly_command_scsi_large *)mc->mc_packet; 1551 struct mly_command_ioctl *io = (struct mly_command_ioctl *)mc->mc_packet; 1552 int transfer; 1553 1554 mly_printf(sc, " command_id %d\n", ge->command_id); 1555 mly_printf(sc, " opcode %d\n", ge->opcode); 1556 mly_printf(sc, " command_control fua %d dpo %d est %d dd %s nas %d ddis %d\n", 1557 ge->command_control.force_unit_access, 1558 ge->command_control.disable_page_out, 1559 ge->command_control.extended_sg_table, 1560 (ge->command_control.data_direction == MLY_CCB_WRITE) ? "WRITE" : "READ", 1561 ge->command_control.no_auto_sense, 1562 ge->command_control.disable_disconnect); 1563 mly_printf(sc, " data_size %d\n", ge->data_size); 1564 mly_printf(sc, " sense_buffer_address 0x%llx\n", ge->sense_buffer_address); 1565 mly_printf(sc, " lun %d\n", ge->addr.phys.lun); 1566 mly_printf(sc, " target %d\n", ge->addr.phys.target); 1567 mly_printf(sc, " channel %d\n", ge->addr.phys.channel); 1568 mly_printf(sc, " logical device %d\n", ge->addr.log.logdev); 1569 mly_printf(sc, " controller %d\n", ge->addr.phys.controller); 1570 mly_printf(sc, " timeout %d %s\n", 1571 ge->timeout.value, 1572 (ge->timeout.scale == MLY_TIMEOUT_SECONDS) ? "seconds" : 1573 ((ge->timeout.scale == MLY_TIMEOUT_MINUTES) ? "minutes" : "hours")); 1574 mly_printf(sc, " maximum_sense_size %d\n", ge->maximum_sense_size); 1575 switch(ge->opcode) { 1576 case MDACMD_SCSIPT: 1577 case MDACMD_SCSI: 1578 mly_printf(sc, " cdb length %d\n", ss->cdb_length); 1579 mly_printf(sc, " cdb %*D\n", ss->cdb_length, ss->cdb, " "); 1580 transfer = 1; 1581 break; 1582 case MDACMD_SCSILC: 1583 case MDACMD_SCSILCPT: 1584 mly_printf(sc, " cdb length %d\n", sl->cdb_length); 1585 mly_printf(sc, " cdb 0x%llx\n", sl->cdb_physaddr); 1586 transfer = 1; 1587 break; 1588 case MDACMD_IOCTL: 1589 mly_printf(sc, " sub_ioctl 0x%x\n", io->sub_ioctl); 1590 switch(io->sub_ioctl) { 1591 case MDACIOCTL_SETMEMORYMAILBOX: 1592 mly_printf(sc, " health_buffer_size %d\n", 1593 io->param.setmemorymailbox.health_buffer_size); 1594 mly_printf(sc, " health_buffer_phys 0x%llx\n", 1595 io->param.setmemorymailbox.health_buffer_physaddr); 1596 mly_printf(sc, " command_mailbox 0x%llx\n", 1597 io->param.setmemorymailbox.command_mailbox_physaddr); 1598 mly_printf(sc, " status_mailbox 0x%llx\n", 1599 io->param.setmemorymailbox.status_mailbox_physaddr); 1600 transfer = 0; 1601 break; 1602 1603 case MDACIOCTL_SETREALTIMECLOCK: 1604 case MDACIOCTL_GETHEALTHSTATUS: 1605 case MDACIOCTL_GETCONTROLLERINFO: 1606 case MDACIOCTL_GETLOGDEVINFOVALID: 1607 case MDACIOCTL_GETPHYSDEVINFOVALID: 1608 case MDACIOCTL_GETPHYSDEVSTATISTICS: 1609 case MDACIOCTL_GETLOGDEVSTATISTICS: 1610 case MDACIOCTL_GETCONTROLLERSTATISTICS: 1611 case MDACIOCTL_GETBDT_FOR_SYSDRIVE: 1612 case MDACIOCTL_CREATENEWCONF: 1613 case MDACIOCTL_ADDNEWCONF: 1614 case MDACIOCTL_GETDEVCONFINFO: 1615 case MDACIOCTL_GETFREESPACELIST: 1616 case MDACIOCTL_MORE: 1617 case MDACIOCTL_SETPHYSDEVPARAMETER: 1618 case MDACIOCTL_GETPHYSDEVPARAMETER: 1619 case MDACIOCTL_GETLOGDEVPARAMETER: 1620 case MDACIOCTL_SETLOGDEVPARAMETER: 1621 mly_printf(sc, " param %10D\n", io->param.data.param, " "); 1622 transfer = 1; 1623 break; 1624 1625 case MDACIOCTL_GETEVENT: 1626 mly_printf(sc, " event %d\n", 1627 io->param.getevent.sequence_number_low + ((u_int32_t)io->addr.log.logdev << 16)); 1628 transfer = 1; 1629 break; 1630 1631 case MDACIOCTL_SETRAIDDEVSTATE: 1632 mly_printf(sc, " state %d\n", io->param.setraiddevstate.state); 1633 transfer = 0; 1634 break; 1635 1636 case MDACIOCTL_XLATEPHYSDEVTORAIDDEV: 1637 mly_printf(sc, " raid_device %d\n", io->param.xlatephysdevtoraiddev.raid_device); 1638 mly_printf(sc, " controller %d\n", io->param.xlatephysdevtoraiddev.controller); 1639 mly_printf(sc, " channel %d\n", io->param.xlatephysdevtoraiddev.channel); 1640 mly_printf(sc, " target %d\n", io->param.xlatephysdevtoraiddev.target); 1641 mly_printf(sc, " lun %d\n", io->param.xlatephysdevtoraiddev.lun); 1642 transfer = 0; 1643 break; 1644 1645 case MDACIOCTL_GETGROUPCONFINFO: 1646 mly_printf(sc, " group %d\n", io->param.getgroupconfinfo.group); 1647 transfer = 1; 1648 break; 1649 1650 case MDACIOCTL_GET_SUBSYSTEM_DATA: 1651 case MDACIOCTL_SET_SUBSYSTEM_DATA: 1652 case MDACIOCTL_STARTDISOCVERY: 1653 case MDACIOCTL_INITPHYSDEVSTART: 1654 case MDACIOCTL_INITPHYSDEVSTOP: 1655 case MDACIOCTL_INITRAIDDEVSTART: 1656 case MDACIOCTL_INITRAIDDEVSTOP: 1657 case MDACIOCTL_REBUILDRAIDDEVSTART: 1658 case MDACIOCTL_REBUILDRAIDDEVSTOP: 1659 case MDACIOCTL_MAKECONSISTENTDATASTART: 1660 case MDACIOCTL_MAKECONSISTENTDATASTOP: 1661 case MDACIOCTL_CONSISTENCYCHECKSTART: 1662 case MDACIOCTL_CONSISTENCYCHECKSTOP: 1663 case MDACIOCTL_RESETDEVICE: 1664 case MDACIOCTL_FLUSHDEVICEDATA: 1665 case MDACIOCTL_PAUSEDEVICE: 1666 case MDACIOCTL_UNPAUSEDEVICE: 1667 case MDACIOCTL_LOCATEDEVICE: 1668 case MDACIOCTL_SETMASTERSLAVEMODE: 1669 case MDACIOCTL_DELETERAIDDEV: 1670 case MDACIOCTL_REPLACEINTERNALDEV: 1671 case MDACIOCTL_CLEARCONF: 1672 case MDACIOCTL_GETCONTROLLERPARAMETER: 1673 case MDACIOCTL_SETCONTRLLERPARAMETER: 1674 case MDACIOCTL_CLEARCONFSUSPMODE: 1675 case MDACIOCTL_STOREIMAGE: 1676 case MDACIOCTL_READIMAGE: 1677 case MDACIOCTL_FLASHIMAGES: 1678 case MDACIOCTL_RENAMERAIDDEV: 1679 default: /* no idea what to print */ 1680 transfer = 0; 1681 break; 1682 } 1683 break; 1684 1685 case MDACMD_IOCTLCHECK: 1686 case MDACMD_MEMCOPY: 1687 default: 1688 transfer = 0; 1689 break; /* print nothing */ 1690 } 1691 if (transfer) { 1692 if (ge->command_control.extended_sg_table) { 1693 mly_printf(sc, " sg table 0x%llx/%d\n", 1694 ge->transfer.indirect.table_physaddr[0], ge->transfer.indirect.entries[0]); 1695 } else { 1696 mly_printf(sc, " 0000 0x%llx/%lld\n", 1697 ge->transfer.direct.sg[0].physaddr, ge->transfer.direct.sg[0].length); 1698 mly_printf(sc, " 0001 0x%llx/%lld\n", 1699 ge->transfer.direct.sg[1].physaddr, ge->transfer.direct.sg[1].length); 1700 } 1701 } 1702} 1703 1704/******************************************************************************** 1705 * Panic in a slightly informative fashion 1706 */ 1707static void 1708mly_panic(struct mly_softc *sc, char *reason) 1709{ 1710 mly_printstate(sc); 1711 panic(reason); 1712} 1713#endif 1714