/*- * Implementation of SCSI Direct Access Peripheral driver for CAM. * * Copyright (c) 1997 Justin T. Gibbs. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification, immediately at the beginning of the file. * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #ifdef _KERNEL #include #include #include #include #include #include #include #include #include #include #include #include #include #endif /* _KERNEL */ #ifndef _KERNEL #include #include #endif /* _KERNEL */ #include #include #include #include #include #include #ifndef _KERNEL #include #endif /* !_KERNEL */ #ifdef _KERNEL typedef enum { DA_STATE_PROBE, DA_STATE_PROBE2, DA_STATE_NORMAL } da_state; typedef enum { DA_FLAG_PACK_INVALID = 0x001, DA_FLAG_NEW_PACK = 0x002, DA_FLAG_PACK_LOCKED = 0x004, DA_FLAG_PACK_REMOVABLE = 0x008, DA_FLAG_TAGGED_QUEUING = 0x010, DA_FLAG_NEED_OTAG = 0x020, DA_FLAG_WENT_IDLE = 0x040, DA_FLAG_RETRY_UA = 0x080, DA_FLAG_OPEN = 0x100, DA_FLAG_SCTX_INIT = 0x200 } da_flags; typedef enum { DA_Q_NONE = 0x00, DA_Q_NO_SYNC_CACHE = 0x01, DA_Q_NO_6_BYTE = 0x02, DA_Q_NO_PREVENT = 0x04 } da_quirks; typedef enum { DA_CCB_PROBE = 0x01, DA_CCB_PROBE2 = 0x02, DA_CCB_BUFFER_IO = 0x03, DA_CCB_WAITING = 0x04, DA_CCB_DUMP = 0x05, DA_CCB_TYPE_MASK = 0x0F, DA_CCB_RETRY_UA = 0x10 } da_ccb_state; /* Offsets into our private area for storing information */ #define ccb_state ppriv_field0 #define ccb_bp ppriv_ptr1 struct disk_params { u_int8_t heads; u_int32_t cylinders; u_int8_t secs_per_track; u_int32_t secsize; /* Number of bytes/sector */ u_int64_t sectors; /* total number sectors */ }; struct da_softc { struct bio_queue_head bio_queue; SLIST_ENTRY(da_softc) links; LIST_HEAD(, ccb_hdr) pending_ccbs; da_state state; da_flags flags; da_quirks quirks; int minimum_cmd_size; int ordered_tag_count; int outstanding_cmds; struct disk_params params; struct disk *disk; union ccb saved_ccb; struct task sysctl_task; struct sysctl_ctx_list sysctl_ctx; struct sysctl_oid *sysctl_tree; struct callout sendordered_c; }; struct da_quirk_entry { struct scsi_inquiry_pattern inq_pat; da_quirks quirks; }; static const char quantum[] = "QUANTUM"; static const char microp[] = "MICROP"; static struct da_quirk_entry da_quirk_table[] = { /* SPI, FC devices */ { /* * Fujitsu M2513A MO drives. * Tested devices: M2513A2 firmware versions 1200 & 1300. * (dip switch selects whether T_DIRECT or T_OPTICAL device) * Reported by: W.Scholten */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* See above. */ {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * This particular Fujitsu drive doesn't like the * synchronize cache command. * Reported by: Tom Jackson */ {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * This drive doesn't like the synchronize cache command * either. Reported by: Matthew Jacob * in NetBSD PR kern/6027, August 24, 1998. */ {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * This drive doesn't like the synchronize cache command * either. Reported by: Hellmuth Michaelis (hm@kts.org) * (PR 8882). */ {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Doesn't like the synchronize cache command. * Reported by: Blaz Zupan */ {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Doesn't like the synchronize cache command. * Reported by: Blaz Zupan */ {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Doesn't like the synchronize cache command. */ {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Doesn't like the synchronize cache command. * Reported by: walter@pelissero.de */ {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Doesn't work correctly with 6 byte reads/writes. * Returns illegal request, and points to byte 9 of the * 6-byte CDB. * Reported by: Adam McDougall */ {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, /*quirks*/ DA_Q_NO_6_BYTE }, { /* See above. */ {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, /*quirks*/ DA_Q_NO_6_BYTE }, { /* * Doesn't like the synchronize cache command. * Reported by: walter@pelissero.de */ {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * The CISS RAID controllers do not support SYNC_CACHE */ {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, /* USB mass storage devices supported by umass(4) */ { /* * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player * PR: kern/51675 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Power Quotient Int. (PQI) USB flash key * PR: kern/53067 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Creative Nomad MUVO mp3 player (USB) * PR: kern/53094 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT }, { /* * Jungsoft NEXDISK USB flash key * PR: kern/54737 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * FreeDik USB Mini Data Drive * PR: kern/54786 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Sigmatel USB Flash MP3 Player * PR: kern/57046 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT }, { /* * Neuros USB Digital Audio Computer * PR: kern/63645 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * SEAGRAND NP-900 MP3 Player * PR: kern/64563 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT }, { /* * iRiver iFP MP3 player (with UMS Firmware) * PR: kern/54881, i386/63941, kern/66124 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 * PR: kern/70158 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * ZICPlay USB MP3 Player with FM * PR: kern/75057 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * TEAC USB floppy mechanisms */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Kingston DataTraveler II+ USB Pen-Drive. * Reported by: Pawel Jakub Dawidek */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Motorola E398 Mobile Phone (TransFlash memory card). * Reported by: Wojciech A. Koszek * PR: usb/89889 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Qware BeatZkey! Pro * PR: usb/79164 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Time DPA20B 1GB MP3 Player * PR: usb/81846 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Samsung USB key 128Mb * PR: usb/90081 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Kingston DataTraveler 2.0 USB Flash memory. * PR: usb/89196 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Creative MUVO Slim mp3 player (USB) * PR: usb/86131 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT }, { /* * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) * PR: usb/80487 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * SanDisk Micro Cruzer 128MB * PR: usb/75970 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * TOSHIBA TransMemory USB sticks * PR: kern/94660 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * PNY USB Flash keys * PR: usb/75578, usb/72344, usb/65436 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Genesys 6-in-1 Card Reader * PR: usb/94647 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Rekam Digital CAMERA * PR: usb/98713 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * iRiver H10 MP3 player * PR: usb/102547 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * iRiver U10 MP3 player * PR: usb/92306 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * X-Micro Flash Disk * PR: usb/96901 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * EasyMP3 EM732X USB 2.0 Flash MP3 Player * PR: usb/96546 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Denver MP3 player * PR: usb/107101 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Philips USB Key Audio KEY013 * PR: usb/68412 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT }, { /* * JNC MP3 Player * PR: usb/94439 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * SAMSUNG MP0402H * PR: usb/108427 */ {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * I/O Magic USB flash - Giga Bank * PR: usb/108810 */ {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * JoyFly 128mb USB Flash Drive * PR: 96133 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * ChipsBnk usb stick * PR: 103702 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { /* * Samsung YP-U3 mp3-player * PR: 125398 */ {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3", "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE }, { {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*", "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE } }; static disk_strategy_t dastrategy; static dumper_t dadump; static periph_init_t dainit; static void daasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg); static void dasysctlinit(void *context, int pending); static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); static periph_ctor_t daregister; static periph_dtor_t dacleanup; static periph_start_t dastart; static periph_oninv_t daoninvalidate; static void dadone(struct cam_periph *periph, union ccb *done_ccb); static int daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags); static void daprevent(struct cam_periph *periph, int action); static int dagetcapacity(struct cam_periph *periph); static void dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector); static timeout_t dasendorderedtag; static void dashutdown(void *arg, int howto); #ifndef DA_DEFAULT_TIMEOUT #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ #endif #ifndef DA_DEFAULT_RETRY #define DA_DEFAULT_RETRY 4 #endif #ifndef DA_DEFAULT_SEND_ORDERED #define DA_DEFAULT_SEND_ORDERED 1 #endif static int da_retry_count = DA_DEFAULT_RETRY; static int da_default_timeout = DA_DEFAULT_TIMEOUT; static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, "CAM Direct Access Disk driver"); SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, &da_retry_count, 0, "Normal I/O retry count"); TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, &da_send_ordered, 0, "Send Ordered Tags"); TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); /* * DA_ORDEREDTAG_INTERVAL determines how often, relative * to the default timeout, we check to see whether an ordered * tagged transaction is appropriate to prevent simple tag * starvation. Since we'd like to ensure that there is at least * 1/2 of the timeout length left for a starved transaction to * complete after we've sent an ordered tag, we must poll at least * four times in every timeout period. This takes care of the worst * case where a starved transaction starts during an interval that * meets the requirement "don't send an ordered tag" test so it takes * us two intervals to determine that a tag must be sent. */ #ifndef DA_ORDEREDTAG_INTERVAL #define DA_ORDEREDTAG_INTERVAL 4 #endif static struct periph_driver dadriver = { dainit, "da", TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 }; PERIPHDRIVER_DECLARE(da, dadriver); MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers"); static int daopen(struct disk *dp) { struct cam_periph *periph; struct da_softc *softc; int unit; int error; periph = (struct cam_periph *)dp->d_drv1; if (periph == NULL) { return (ENXIO); } if (cam_periph_acquire(periph) != CAM_REQ_CMP) { return(ENXIO); } cam_periph_lock(periph); if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { cam_periph_unlock(periph); cam_periph_release(periph); return (error); } unit = periph->unit_number; softc = (struct da_softc *)periph->softc; softc->flags |= DA_FLAG_OPEN; CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, unit)); if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { /* Invalidate our pack information. */ softc->flags &= ~DA_FLAG_PACK_INVALID; } error = dagetcapacity(periph); if (error == 0) { softc->disk->d_sectorsize = softc->params.secsize; softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; /* XXX: these are not actually "firmware" values, so they may be wrong */ softc->disk->d_fwsectors = softc->params.secs_per_track; softc->disk->d_fwheads = softc->params.heads; softc->disk->d_devstat->block_size = softc->params.secsize; softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && (softc->quirks & DA_Q_NO_PREVENT) == 0) daprevent(periph, PR_PREVENT); } else softc->flags &= ~DA_FLAG_OPEN; cam_periph_unhold(periph); cam_periph_unlock(periph); if (error != 0) { cam_periph_release(periph); } return (error); } static int daclose(struct disk *dp) { struct cam_periph *periph; struct da_softc *softc; int error; periph = (struct cam_periph *)dp->d_drv1; if (periph == NULL) return (ENXIO); cam_periph_lock(periph); if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { cam_periph_unlock(periph); cam_periph_release(periph); return (error); } softc = (struct da_softc *)periph->softc; if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { union ccb *ccb; ccb = cam_periph_getccb(periph, /*priority*/1); scsi_synchronize_cache(&ccb->csio, /*retries*/1, /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG, /*begin_lba*/0,/* Cover the whole disk */ /*lb_count*/0, SSD_FULL_SIZE, 5 * 60 * 1000); cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, /*sense_flags*/SF_RETRY_UA, softc->disk->d_devstat); if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) { int asc, ascq; int sense_key, error_code; scsi_extract_sense(&ccb->csio.sense_data, &error_code, &sense_key, &asc, &ascq); if (sense_key != SSD_KEY_ILLEGAL_REQUEST) scsi_sense_print(&ccb->csio); } else { xpt_print(periph->path, "Synchronize cache " "failed, status == 0x%x, scsi status == " "0x%x\n", ccb->csio.ccb_h.status, ccb->csio.scsi_status); } } if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) cam_release_devq(ccb->ccb_h.path, /*relsim_flags*/0, /*reduction*/0, /*timeout*/0, /*getcount_only*/0); xpt_release_ccb(ccb); } if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { if ((softc->quirks & DA_Q_NO_PREVENT) == 0) daprevent(periph, PR_ALLOW); /* * If we've got removeable media, mark the blocksize as * unavailable, since it could change when new media is * inserted. */ softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; } softc->flags &= ~DA_FLAG_OPEN; cam_periph_unhold(periph); cam_periph_unlock(periph); cam_periph_release(periph); return (0); } /* * Actually translate the requested transfer into one the physical driver * can understand. The transfer is described by a buf and will include * only one physical transfer. */ static void dastrategy(struct bio *bp) { struct cam_periph *periph; struct da_softc *softc; periph = (struct cam_periph *)bp->bio_disk->d_drv1; if (periph == NULL) { biofinish(bp, NULL, ENXIO); return; } softc = (struct da_softc *)periph->softc; cam_periph_lock(periph); #if 0 /* * check it's not too big a transfer for our adapter */ scsi_minphys(bp,&sd_switch); #endif /* * Mask interrupts so that the pack cannot be invalidated until * after we are in the queue. Otherwise, we might not properly * clean up one of the buffers. */ /* * If the device has been made invalid, error out */ if ((softc->flags & DA_FLAG_PACK_INVALID)) { cam_periph_unlock(periph); biofinish(bp, NULL, ENXIO); return; } /* * Place it in the queue of disk activities for this disk */ bioq_disksort(&softc->bio_queue, bp); /* * Schedule ourselves for performing the work. */ xpt_schedule(periph, /* XXX priority */1); cam_periph_unlock(periph); return; } static int dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) { struct cam_periph *periph; struct da_softc *softc; u_int secsize; struct ccb_scsiio csio; struct disk *dp; dp = arg; periph = dp->d_drv1; if (periph == NULL) return (ENXIO); softc = (struct da_softc *)periph->softc; cam_periph_lock(periph); secsize = softc->params.secsize; if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { cam_periph_unlock(periph); return (ENXIO); } if (length > 0) { periph->flags |= CAM_PERIPH_POLLED; xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); csio.ccb_h.ccb_state = DA_CCB_DUMP; scsi_read_write(&csio, /*retries*/1, dadone, MSG_ORDERED_Q_TAG, /*read*/FALSE, /*byte2*/0, /*minimum_cmd_size*/ softc->minimum_cmd_size, offset / secsize, length / secsize, /*data_ptr*/(u_int8_t *) virtual, /*dxfer_len*/length, /*sense_len*/SSD_FULL_SIZE, DA_DEFAULT_TIMEOUT * 1000); xpt_polled_action((union ccb *)&csio); if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { printf("Aborting dump due to I/O error.\n"); if ((csio.ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) scsi_sense_print(&csio); else printf("status == 0x%x, scsi status == 0x%x\n", csio.ccb_h.status, csio.scsi_status); periph->flags |= CAM_PERIPH_POLLED; return(EIO); } cam_periph_unlock(periph); return(0); } /* * Sync the disk cache contents to the physical media. */ if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); csio.ccb_h.ccb_state = DA_CCB_DUMP; scsi_synchronize_cache(&csio, /*retries*/1, /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG, /*begin_lba*/0,/* Cover the whole disk */ /*lb_count*/0, SSD_FULL_SIZE, 5 * 60 * 1000); xpt_polled_action((union ccb *)&csio); if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { if ((csio.ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) { int asc, ascq; int sense_key, error_code; scsi_extract_sense(&csio.sense_data, &error_code, &sense_key, &asc, &ascq); if (sense_key != SSD_KEY_ILLEGAL_REQUEST) scsi_sense_print(&csio); } else { xpt_print(periph->path, "Synchronize cache " "failed, status == 0x%x, scsi status == " "0x%x\n", csio.ccb_h.status, csio.scsi_status); } } } periph->flags &= ~CAM_PERIPH_POLLED; cam_periph_unlock(periph); return (0); } static void dainit(void) { cam_status status; /* * Install a global async callback. This callback will * receive async callbacks like "new device found". */ status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); if (status != CAM_REQ_CMP) { printf("da: Failed to attach master async callback " "due to status 0x%x!\n", status); } else if (da_send_ordered) { /* Register our shutdown event handler */ if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) printf("dainit: shutdown event registration failed!\n"); } } static void daoninvalidate(struct cam_periph *periph) { struct da_softc *softc; softc = (struct da_softc *)periph->softc; /* * De-register any async callbacks. */ xpt_register_async(0, daasync, periph, periph->path); softc->flags |= DA_FLAG_PACK_INVALID; /* * Return all queued I/O with ENXIO. * XXX Handle any transactions queued to the card * with XPT_ABORT_CCB. */ bioq_flush(&softc->bio_queue, NULL, ENXIO); disk_gone(softc->disk); xpt_print(periph->path, "lost device\n"); } static void dacleanup(struct cam_periph *periph) { struct da_softc *softc; softc = (struct da_softc *)periph->softc; xpt_print(periph->path, "removing device entry\n"); /* * If we can't free the sysctl tree, oh well... */ if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { xpt_print(periph->path, "can't remove sysctl context\n"); } disk_destroy(softc->disk); callout_drain(&softc->sendordered_c); free(softc, M_DEVBUF); } static void daasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) { struct cam_periph *periph; periph = (struct cam_periph *)callback_arg; switch (code) { case AC_FOUND_DEVICE: { struct ccb_getdev *cgd; struct cam_sim *sim; cam_status status; cgd = (struct ccb_getdev *)arg; if (cgd == NULL) break; if (SID_TYPE(&cgd->inq_data) != T_DIRECT && SID_TYPE(&cgd->inq_data) != T_RBC && SID_TYPE(&cgd->inq_data) != T_OPTICAL) break; /* * Allocate a peripheral instance for * this device and start the probe * process. */ sim = xpt_path_sim(cgd->ccb_h.path); status = cam_periph_alloc(daregister, daoninvalidate, dacleanup, dastart, "da", CAM_PERIPH_BIO, cgd->ccb_h.path, daasync, AC_FOUND_DEVICE, cgd); if (status != CAM_REQ_CMP && status != CAM_REQ_INPROG) printf("daasync: Unable to attach to new device " "due to status 0x%x\n", status); break; } case AC_SENT_BDR: case AC_BUS_RESET: { struct da_softc *softc; struct ccb_hdr *ccbh; softc = (struct da_softc *)periph->softc; /* * Don't fail on the expected unit attention * that will occur. */ softc->flags |= DA_FLAG_RETRY_UA; LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) ccbh->ccb_state |= DA_CCB_RETRY_UA; /* FALLTHROUGH*/ } default: cam_periph_async(periph, code, path, arg); break; } } static void dasysctlinit(void *context, int pending) { struct cam_periph *periph; struct da_softc *softc; char tmpstr[80], tmpstr2[80]; periph = (struct cam_periph *)context; if (cam_periph_acquire(periph) != CAM_REQ_CMP) return; softc = (struct da_softc *)periph->softc; snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); mtx_lock(&Giant); sysctl_ctx_init(&softc->sysctl_ctx); softc->flags |= DA_FLAG_SCTX_INIT; softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, CTLFLAG_RD, 0, tmpstr); if (softc->sysctl_tree == NULL) { printf("dasysctlinit: unable to allocate sysctl tree\n"); mtx_unlock(&Giant); cam_periph_release(periph); return; } /* * Now register the sysctl handler, so the user can the value on * the fly. */ SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", "Minimum CDB size"); mtx_unlock(&Giant); cam_periph_release(periph); } static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS) { int error, value; value = *(int *)arg1; error = sysctl_handle_int(oidp, &value, 0, req); if ((error != 0) || (req->newptr == NULL)) return (error); /* * Acceptable values here are 6, 10, 12 or 16. */ if (value < 6) value = 6; else if ((value > 6) && (value <= 10)) value = 10; else if ((value > 10) && (value <= 12)) value = 12; else if (value > 12) value = 16; *(int *)arg1 = value; return (0); } static cam_status daregister(struct cam_periph *periph, void *arg) { struct da_softc *softc; struct ccb_pathinq cpi; struct ccb_getdev *cgd; char tmpstr[80]; caddr_t match; cgd = (struct ccb_getdev *)arg; if (periph == NULL) { printf("daregister: periph was NULL!!\n"); return(CAM_REQ_CMP_ERR); } if (cgd == NULL) { printf("daregister: no getdev CCB, can't register device\n"); return(CAM_REQ_CMP_ERR); } softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, M_NOWAIT|M_ZERO); if (softc == NULL) { printf("daregister: Unable to probe new device. " "Unable to allocate softc\n"); return(CAM_REQ_CMP_ERR); } LIST_INIT(&softc->pending_ccbs); softc->state = DA_STATE_PROBE; bioq_init(&softc->bio_queue); if (SID_IS_REMOVABLE(&cgd->inq_data)) softc->flags |= DA_FLAG_PACK_REMOVABLE; if ((cgd->inq_data.flags & SID_CmdQue) != 0) softc->flags |= DA_FLAG_TAGGED_QUEUING; periph->softc = softc; /* * See if this device has any quirks. */ match = cam_quirkmatch((caddr_t)&cgd->inq_data, (caddr_t)da_quirk_table, sizeof(da_quirk_table)/sizeof(*da_quirk_table), sizeof(*da_quirk_table), scsi_inquiry_match); if (match != NULL) softc->quirks = ((struct da_quirk_entry *)match)->quirks; else softc->quirks = DA_Q_NONE; /* Check if the SIM does not want 6 byte commands */ xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); cpi.ccb_h.func_code = XPT_PATH_INQ; xpt_action((union ccb *)&cpi); if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) softc->quirks |= DA_Q_NO_6_BYTE; TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); /* * RBC devices don't have to support READ(6), only READ(10). */ if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) softc->minimum_cmd_size = 10; else softc->minimum_cmd_size = 6; /* * Load the user's default, if any. */ snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", periph->unit_number); TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); /* * 6, 10, 12 and 16 are the currently permissible values. */ if (softc->minimum_cmd_size < 6) softc->minimum_cmd_size = 6; else if ((softc->minimum_cmd_size > 6) && (softc->minimum_cmd_size <= 10)) softc->minimum_cmd_size = 10; else if ((softc->minimum_cmd_size > 10) && (softc->minimum_cmd_size <= 12)) softc->minimum_cmd_size = 12; else if (softc->minimum_cmd_size > 12) softc->minimum_cmd_size = 16; /* * Register this media as a disk */ mtx_unlock(periph->sim->mtx); softc->disk = disk_alloc(); softc->disk->d_open = daopen; softc->disk->d_close = daclose; softc->disk->d_strategy = dastrategy; softc->disk->d_dump = dadump; softc->disk->d_name = "da"; softc->disk->d_drv1 = periph; softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ softc->disk->d_unit = periph->unit_number; softc->disk->d_flags = 0; if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; disk_create(softc->disk, DISK_VERSION); mtx_lock(periph->sim->mtx); /* * Add async callbacks for bus reset and * bus device reset calls. I don't bother * checking if this fails as, in most cases, * the system will function just fine without * them and the only alternative would be to * not attach the device on failure. */ xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, daasync, periph, periph->path); /* * Take an exclusive refcount on the periph while dastart is called * to finish the probe. The reference will be dropped in dadone at * the end of probe. */ (void)cam_periph_hold(periph, PRIBIO); xpt_schedule(periph, /*priority*/5); /* * Schedule a periodic event to occasionally send an * ordered tag to a device. */ callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0); callout_reset(&softc->sendordered_c, (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, dasendorderedtag, softc); return(CAM_REQ_CMP); } static void dastart(struct cam_periph *periph, union ccb *start_ccb) { struct da_softc *softc; softc = (struct da_softc *)periph->softc; switch (softc->state) { case DA_STATE_NORMAL: { /* Pull a buffer from the queue and get going on it */ struct bio *bp; /* * See if there is a buf with work for us to do.. */ bp = bioq_first(&softc->bio_queue); if (periph->immediate_priority <= periph->pinfo.priority) { CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, ("queuing for immediate ccb\n")); start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, periph_links.sle); periph->immediate_priority = CAM_PRIORITY_NONE; wakeup(&periph->ccb_list); } else if (bp == NULL) { xpt_release_ccb(start_ccb); } else { u_int8_t tag_code; bioq_remove(&softc->bio_queue, bp); if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { softc->flags &= ~DA_FLAG_NEED_OTAG; softc->ordered_tag_count++; tag_code = MSG_ORDERED_Q_TAG; } else { tag_code = MSG_SIMPLE_Q_TAG; } switch (bp->bio_cmd) { case BIO_READ: case BIO_WRITE: scsi_read_write(&start_ccb->csio, /*retries*/da_retry_count, /*cbfcnp*/dadone, /*tag_action*/tag_code, /*read_op*/bp->bio_cmd == BIO_READ, /*byte2*/0, softc->minimum_cmd_size, /*lba*/bp->bio_pblkno, /*block_count*/bp->bio_bcount / softc->params.secsize, /*data_ptr*/ bp->bio_data, /*dxfer_len*/ bp->bio_bcount, /*sense_len*/SSD_FULL_SIZE, /*timeout*/da_default_timeout*1000); break; case BIO_FLUSH: scsi_synchronize_cache(&start_ccb->csio, /*retries*/1, /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG, /*begin_lba*/0,/* Cover the whole disk */ /*lb_count*/0, SSD_FULL_SIZE, /*timeout*/da_default_timeout*1000); break; } start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; /* * Block out any asyncronous callbacks * while we touch the pending ccb list. */ LIST_INSERT_HEAD(&softc->pending_ccbs, &start_ccb->ccb_h, periph_links.le); softc->outstanding_cmds++; /* We expect a unit attention from this device */ if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; softc->flags &= ~DA_FLAG_RETRY_UA; } start_ccb->ccb_h.ccb_bp = bp; bp = bioq_first(&softc->bio_queue); xpt_action(start_ccb); } if (bp != NULL) { /* Have more work to do, so ensure we stay scheduled */ xpt_schedule(periph, /* XXX priority */1); } break; } case DA_STATE_PROBE: { struct ccb_scsiio *csio; struct scsi_read_capacity_data *rcap; rcap = (struct scsi_read_capacity_data *) malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO); if (rcap == NULL) { printf("dastart: Couldn't malloc read_capacity data\n"); /* da_free_periph??? */ break; } csio = &start_ccb->csio; scsi_read_capacity(csio, /*retries*/4, dadone, MSG_SIMPLE_Q_TAG, rcap, SSD_FULL_SIZE, /*timeout*/5000); start_ccb->ccb_h.ccb_bp = NULL; start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; xpt_action(start_ccb); break; } case DA_STATE_PROBE2: { struct ccb_scsiio *csio; struct scsi_read_capacity_data_long *rcaplong; rcaplong = (struct scsi_read_capacity_data_long *) malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO); if (rcaplong == NULL) { printf("dastart: Couldn't malloc read_capacity data\n"); /* da_free_periph??? */ break; } csio = &start_ccb->csio; scsi_read_capacity_16(csio, /*retries*/ 4, /*cbfcnp*/ dadone, /*tag_action*/ MSG_SIMPLE_Q_TAG, /*lba*/ 0, /*reladr*/ 0, /*pmi*/ 0, rcaplong, /*sense_len*/ SSD_FULL_SIZE, /*timeout*/ 60000); start_ccb->ccb_h.ccb_bp = NULL; start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; xpt_action(start_ccb); break; } } } static int cmd6workaround(union ccb *ccb) { struct scsi_rw_6 cmd6; struct scsi_rw_10 *cmd10; struct da_softc *softc; u_int8_t *cdb; int frozen; cdb = ccb->csio.cdb_io.cdb_bytes; /* Translation only possible if CDB is an array and cmd is R/W6 */ if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || (*cdb != READ_6 && *cdb != WRITE_6)) return 0; xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " "increasing minimum_cmd_size to 10.\n"); softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; softc->minimum_cmd_size = 10; bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); cmd10 = (struct scsi_rw_10 *)cdb; cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; cmd10->byte2 = 0; scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); cmd10->reserved = 0; scsi_ulto2b(cmd6.length, cmd10->length); cmd10->control = cmd6.control; ccb->csio.cdb_len = sizeof(*cmd10); /* Requeue request, unfreezing queue if necessary */ frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; ccb->ccb_h.status = CAM_REQUEUE_REQ; xpt_action(ccb); if (frozen) { cam_release_devq(ccb->ccb_h.path, /*relsim_flags*/0, /*reduction*/0, /*timeout*/0, /*getcount_only*/0); } return (ERESTART); } static void dadone(struct cam_periph *periph, union ccb *done_ccb) { struct da_softc *softc; struct ccb_scsiio *csio; softc = (struct da_softc *)periph->softc; csio = &done_ccb->csio; switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { case DA_CCB_BUFFER_IO: { struct bio *bp; bp = (struct bio *)done_ccb->ccb_h.ccb_bp; if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { int error; int sf; if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) sf = SF_RETRY_UA; else sf = 0; error = daerror(done_ccb, CAM_RETRY_SELTO, sf); if (error == ERESTART) { /* * A retry was scheuled, so * just return. */ return; } if (error != 0) { if (error == ENXIO) { /* * Catastrophic error. Mark our pack as * invalid. */ /* * XXX See if this is really a media * XXX change first? */ xpt_print(periph->path, "Invalidating pack\n"); softc->flags |= DA_FLAG_PACK_INVALID; } /* * return all queued I/O with EIO, so that * the client can retry these I/Os in the * proper order should it attempt to recover. */ bioq_flush(&softc->bio_queue, NULL, EIO); bp->bio_error = error; bp->bio_resid = bp->bio_bcount; bp->bio_flags |= BIO_ERROR; } else { bp->bio_resid = csio->resid; bp->bio_error = 0; if (bp->bio_resid != 0) bp->bio_flags |= BIO_ERROR; } if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) cam_release_devq(done_ccb->ccb_h.path, /*relsim_flags*/0, /*reduction*/0, /*timeout*/0, /*getcount_only*/0); } else { if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) panic("REQ_CMP with QFRZN"); bp->bio_resid = csio->resid; if (csio->resid > 0) bp->bio_flags |= BIO_ERROR; } /* * Block out any asyncronous callbacks * while we touch the pending ccb list. */ LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); softc->outstanding_cmds--; if (softc->outstanding_cmds == 0) softc->flags |= DA_FLAG_WENT_IDLE; biodone(bp); break; } case DA_CCB_PROBE: case DA_CCB_PROBE2: { struct scsi_read_capacity_data *rdcap; struct scsi_read_capacity_data_long *rcaplong; char announce_buf[80]; rdcap = NULL; rcaplong = NULL; if (softc->state == DA_STATE_PROBE) rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; else rcaplong = (struct scsi_read_capacity_data_long *) csio->data_ptr; if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { struct disk_params *dp; uint32_t block_size; uint64_t maxsector; if (softc->state == DA_STATE_PROBE) { block_size = scsi_4btoul(rdcap->length); maxsector = scsi_4btoul(rdcap->addr); /* * According to SBC-2, if the standard 10 * byte READ CAPACITY command returns 2^32, * we should issue the 16 byte version of * the command, since the device in question * has more sectors than can be represented * with the short version of the command. */ if (maxsector == 0xffffffff) { softc->state = DA_STATE_PROBE2; free(rdcap, M_SCSIDA); xpt_release_ccb(done_ccb); xpt_schedule(periph, /*priority*/5); return; } } else { block_size = scsi_4btoul(rcaplong->length); maxsector = scsi_8btou64(rcaplong->addr); } /* * Because GEOM code just will panic us if we * give them an 'illegal' value we'll avoid that * here. */ if (block_size >= MAXPHYS || block_size == 0) { xpt_print(periph->path, "unsupportable block size %ju\n", (uintmax_t) block_size); announce_buf[0] = '\0'; cam_periph_invalidate(periph); } else { dasetgeom(periph, block_size, maxsector); dp = &softc->params; snprintf(announce_buf, sizeof(announce_buf), "%juMB (%ju %u byte sectors: %dH %dS/T " "%dC)", (uintmax_t) (((uintmax_t)dp->secsize * dp->sectors) / (1024*1024)), (uintmax_t)dp->sectors, dp->secsize, dp->heads, dp->secs_per_track, dp->cylinders); } } else { int error; announce_buf[0] = '\0'; /* * Retry any UNIT ATTENTION type errors. They * are expected at boot. */ error = daerror(done_ccb, CAM_RETRY_SELTO, SF_RETRY_UA|SF_NO_PRINT); if (error == ERESTART) { /* * A retry was scheuled, so * just return. */ return; } else if (error != 0) { struct scsi_sense_data *sense; int asc, ascq; int sense_key, error_code; int have_sense; cam_status status; struct ccb_getdev cgd; /* Don't wedge this device's queue */ status = done_ccb->ccb_h.status; if ((status & CAM_DEV_QFRZN) != 0) cam_release_devq(done_ccb->ccb_h.path, /*relsim_flags*/0, /*reduction*/0, /*timeout*/0, /*getcount_only*/0); xpt_setup_ccb(&cgd.ccb_h, done_ccb->ccb_h.path, /* priority */ 1); cgd.ccb_h.func_code = XPT_GDEV_TYPE; xpt_action((union ccb *)&cgd); if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) || ((status & CAM_AUTOSNS_VALID) == 0)) have_sense = FALSE; else have_sense = TRUE; if (have_sense) { sense = &csio->sense_data; scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq); } /* * Attach to anything that claims to be a * direct access or optical disk device, * as long as it doesn't return a "Logical * unit not supported" (0x25) error. */ if ((have_sense) && (asc != 0x25) && (error_code == SSD_CURRENT_ERROR)) { const char *sense_key_desc; const char *asc_desc; scsi_sense_desc(sense_key, asc, ascq, &cgd.inq_data, &sense_key_desc, &asc_desc); snprintf(announce_buf, sizeof(announce_buf), "Attempt to query device " "size failed: %s, %s", sense_key_desc, asc_desc); } else { if (have_sense) scsi_sense_print( &done_ccb->csio); else { xpt_print(periph->path, "got CAM status %#x\n", done_ccb->ccb_h.status); } xpt_print(periph->path, "fatal error, " "failed to attach to device\n"); /* * Free up resources. */ cam_periph_invalidate(periph); } } } free(csio->data_ptr, M_SCSIDA); if (announce_buf[0] != '\0') { xpt_announce_periph(periph, announce_buf); /* * Create our sysctl variables, now that we know * we have successfully attached. */ taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); } softc->state = DA_STATE_NORMAL; /* * Since our peripheral may be invalidated by an error * above or an external event, we must release our CCB * before releasing the probe lock on the peripheral. * The peripheral will only go away once the last lock * is removed, and we need it around for the CCB release * operation. */ xpt_release_ccb(done_ccb); cam_periph_unhold(periph); return; } case DA_CCB_WAITING: { /* Caller will release the CCB */ wakeup(&done_ccb->ccb_h.cbfcnp); return; } case DA_CCB_DUMP: /* No-op. We're polling */ return; default: break; } xpt_release_ccb(done_ccb); } static int daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) { struct da_softc *softc; struct cam_periph *periph; int error; periph = xpt_path_periph(ccb->ccb_h.path); softc = (struct da_softc *)periph->softc; /* * Automatically detect devices that do not support * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. */ error = 0; if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { error = cmd6workaround(ccb); } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { int sense_key, error_code, asc, ascq; scsi_extract_sense(&ccb->csio.sense_data, &error_code, &sense_key, &asc, &ascq); if (sense_key == SSD_KEY_ILLEGAL_REQUEST) error = cmd6workaround(ccb); } if (error == ERESTART) return (ERESTART); /* * XXX * Until we have a better way of doing pack validation, * don't treat UAs as errors. */ sense_flags |= SF_RETRY_UA; return(cam_periph_error(ccb, cam_flags, sense_flags, &softc->saved_ccb)); } static void daprevent(struct cam_periph *periph, int action) { struct da_softc *softc; union ccb *ccb; int error; softc = (struct da_softc *)periph->softc; if (((action == PR_ALLOW) && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) || ((action == PR_PREVENT) && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { return; } ccb = cam_periph_getccb(periph, /*priority*/1); scsi_prevent(&ccb->csio, /*retries*/1, /*cbcfp*/dadone, MSG_SIMPLE_Q_TAG, action, SSD_FULL_SIZE, 5000); error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, SF_RETRY_UA, softc->disk->d_devstat); if (error == 0) { if (action == PR_ALLOW) softc->flags &= ~DA_FLAG_PACK_LOCKED; else softc->flags |= DA_FLAG_PACK_LOCKED; } xpt_release_ccb(ccb); } static int dagetcapacity(struct cam_periph *periph) { struct da_softc *softc; union ccb *ccb; struct scsi_read_capacity_data *rcap; struct scsi_read_capacity_data_long *rcaplong; uint32_t block_len; uint64_t maxsector; int error; u_int32_t sense_flags; softc = (struct da_softc *)periph->softc; block_len = 0; maxsector = 0; error = 0; sense_flags = SF_RETRY_UA; if (softc->flags & DA_FLAG_PACK_REMOVABLE) sense_flags |= SF_NO_PRINT; /* Do a read capacity */ rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT); if (rcap == NULL) return (ENOMEM); ccb = cam_periph_getccb(periph, /*priority*/1); scsi_read_capacity(&ccb->csio, /*retries*/4, /*cbfncp*/dadone, MSG_SIMPLE_Q_TAG, rcap, SSD_FULL_SIZE, /*timeout*/60000); ccb->ccb_h.ccb_bp = NULL; error = cam_periph_runccb(ccb, daerror, /*cam_flags*/CAM_RETRY_SELTO, sense_flags, softc->disk->d_devstat); if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) cam_release_devq(ccb->ccb_h.path, /*relsim_flags*/0, /*reduction*/0, /*timeout*/0, /*getcount_only*/0); if (error == 0) { block_len = scsi_4btoul(rcap->length); maxsector = scsi_4btoul(rcap->addr); if (maxsector != 0xffffffff) goto done; } else goto done; rcaplong = (struct scsi_read_capacity_data_long *)rcap; scsi_read_capacity_16(&ccb->csio, /*retries*/ 4, /*cbfcnp*/ dadone, /*tag_action*/ MSG_SIMPLE_Q_TAG, /*lba*/ 0, /*reladr*/ 0, /*pmi*/ 0, rcaplong, /*sense_len*/ SSD_FULL_SIZE, /*timeout*/ 60000); ccb->ccb_h.ccb_bp = NULL; error = cam_periph_runccb(ccb, daerror, /*cam_flags*/CAM_RETRY_SELTO, sense_flags, softc->disk->d_devstat); if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) cam_release_devq(ccb->ccb_h.path, /*relsim_flags*/0, /*reduction*/0, /*timeout*/0, /*getcount_only*/0); if (error == 0) { block_len = scsi_4btoul(rcaplong->length); maxsector = scsi_8btou64(rcaplong->addr); } done: if (error == 0) dasetgeom(periph, block_len, maxsector); xpt_release_ccb(ccb); free(rcap, M_SCSIDA); return (error); } static void dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) { struct ccb_calc_geometry ccg; struct da_softc *softc; struct disk_params *dp; softc = (struct da_softc *)periph->softc; dp = &softc->params; dp->secsize = block_len; dp->sectors = maxsector + 1; /* * Have the controller provide us with a geometry * for this disk. The only time the geometry * matters is when we boot and the controller * is the only one knowledgeable enough to come * up with something that will make this a bootable * device. */ xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; ccg.block_size = dp->secsize; ccg.volume_size = dp->sectors; ccg.heads = 0; ccg.secs_per_track = 0; ccg.cylinders = 0; xpt_action((union ccb*)&ccg); if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { /* * We don't know what went wrong here- but just pick * a geometry so we don't have nasty things like divide * by zero. */ dp->heads = 255; dp->secs_per_track = 255; dp->cylinders = dp->sectors / (255 * 255); if (dp->cylinders == 0) { dp->cylinders = 1; } } else { dp->heads = ccg.heads; dp->secs_per_track = ccg.secs_per_track; dp->cylinders = ccg.cylinders; } } static void dasendorderedtag(void *arg) { struct da_softc *softc = arg; if (da_send_ordered) { if ((softc->ordered_tag_count == 0) && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { softc->flags |= DA_FLAG_NEED_OTAG; } if (softc->outstanding_cmds > 0) softc->flags &= ~DA_FLAG_WENT_IDLE; softc->ordered_tag_count = 0; } /* Queue us up again */ callout_reset(&softc->sendordered_c, (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, dasendorderedtag, softc); } /* * Step through all DA peripheral drivers, and if the device is still open, * sync the disk cache to physical media. */ static void dashutdown(void * arg, int howto) { struct cam_periph *periph; struct da_softc *softc; TAILQ_FOREACH(periph, &dadriver.units, unit_links) { union ccb ccb; cam_periph_lock(periph); softc = (struct da_softc *)periph->softc; /* * We only sync the cache if the drive is still open, and * if the drive is capable of it.. */ if (((softc->flags & DA_FLAG_OPEN) == 0) || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { cam_periph_unlock(periph); continue; } xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); ccb.ccb_h.ccb_state = DA_CCB_DUMP; scsi_synchronize_cache(&ccb.csio, /*retries*/1, /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG, /*begin_lba*/0, /* whole disk */ /*lb_count*/0, SSD_FULL_SIZE, 60 * 60 * 1000); xpt_polled_action(&ccb); if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { if (((ccb.ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ int error_code, sense_key, asc, ascq; scsi_extract_sense(&ccb.csio.sense_data, &error_code, &sense_key, &asc, &ascq); if (sense_key != SSD_KEY_ILLEGAL_REQUEST) scsi_sense_print(&ccb.csio); } else { xpt_print(periph->path, "Synchronize " "cache failed, status == 0x%x, scsi status " "== 0x%x\n", ccb.ccb_h.status, ccb.csio.scsi_status); } } if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0, /*reduction*/0, /*timeout*/0, /*getcount_only*/0); cam_periph_unlock(periph); } } #else /* !_KERNEL */ /* * XXX This is only left out of the kernel build to silence warnings. If, * for some reason this function is used in the kernel, the ifdefs should * be moved so it is included both in the kernel and userland. */ void scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, void (*cbfcnp)(struct cam_periph *, union ccb *), u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout) { struct scsi_format_unit *scsi_cmd; scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; scsi_cmd->opcode = FORMAT_UNIT; scsi_cmd->byte2 = byte2; scsi_ulto2b(ileave, scsi_cmd->interleave); cam_fill_csio(csio, retries, cbfcnp, /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, tag_action, data_ptr, dxfer_len, sense_len, sizeof(*scsi_cmd), timeout); } #endif /* _KERNEL */