71a08a6316
has been removed. Unbreak the build by not including it anymore.
1840 lines
46 KiB
C
1840 lines
46 KiB
C
/*
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* Implementation of SCSI Direct Access Peripheral driver for CAM.
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*
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* Copyright (c) 1997 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifdef _KERNEL
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#include "opt_hw_wdog.h"
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#endif /* _KERNEL */
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#include <sys/param.h>
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#ifdef _KERNEL
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bio.h>
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#include <sys/sysctl.h>
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#include <sys/taskqueue.h>
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#endif /* _KERNEL */
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#include <sys/devicestat.h>
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#include <sys/conf.h>
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#include <sys/eventhandler.h>
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#include <sys/malloc.h>
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#include <sys/cons.h>
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#include <machine/md_var.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <geom/geom_disk.h>
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#ifndef _KERNEL
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#include <stdio.h>
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#include <string.h>
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#endif /* _KERNEL */
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_periph.h>
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#include <cam/cam_xpt_periph.h>
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#include <cam/scsi/scsi_message.h>
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#ifndef _KERNEL
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#include <cam/scsi/scsi_da.h>
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#endif /* !_KERNEL */
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#ifdef _KERNEL
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typedef enum {
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DA_STATE_PROBE,
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DA_STATE_PROBE2,
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DA_STATE_NORMAL
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} da_state;
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typedef enum {
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DA_FLAG_PACK_INVALID = 0x001,
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DA_FLAG_NEW_PACK = 0x002,
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DA_FLAG_PACK_LOCKED = 0x004,
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DA_FLAG_PACK_REMOVABLE = 0x008,
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DA_FLAG_TAGGED_QUEUING = 0x010,
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DA_FLAG_NEED_OTAG = 0x020,
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DA_FLAG_WENT_IDLE = 0x040,
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DA_FLAG_RETRY_UA = 0x080,
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DA_FLAG_OPEN = 0x100,
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DA_FLAG_SCTX_INIT = 0x200
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} da_flags;
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typedef enum {
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DA_Q_NONE = 0x00,
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DA_Q_NO_SYNC_CACHE = 0x01,
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DA_Q_NO_6_BYTE = 0x02,
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DA_Q_NO_PREVENT = 0x04
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} da_quirks;
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typedef enum {
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DA_CCB_PROBE = 0x01,
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DA_CCB_PROBE2 = 0x02,
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DA_CCB_BUFFER_IO = 0x03,
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DA_CCB_WAITING = 0x04,
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DA_CCB_DUMP = 0x05,
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DA_CCB_TYPE_MASK = 0x0F,
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DA_CCB_RETRY_UA = 0x10
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} da_ccb_state;
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/* Offsets into our private area for storing information */
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#define ccb_state ppriv_field0
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#define ccb_bp ppriv_ptr1
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struct disk_params {
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u_int8_t heads;
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u_int32_t cylinders;
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u_int8_t secs_per_track;
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u_int32_t secsize; /* Number of bytes/sector */
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u_int64_t sectors; /* total number sectors */
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};
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struct da_softc {
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struct bio_queue_head bio_queue;
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SLIST_ENTRY(da_softc) links;
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LIST_HEAD(, ccb_hdr) pending_ccbs;
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da_state state;
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da_flags flags;
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da_quirks quirks;
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int minimum_cmd_size;
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int ordered_tag_count;
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int outstanding_cmds;
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struct disk_params params;
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struct disk *disk;
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union ccb saved_ccb;
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struct task sysctl_task;
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struct sysctl_ctx_list sysctl_ctx;
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struct sysctl_oid *sysctl_tree;
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};
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struct da_quirk_entry {
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struct scsi_inquiry_pattern inq_pat;
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da_quirks quirks;
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};
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static const char quantum[] = "QUANTUM";
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static const char microp[] = "MICROP";
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static struct da_quirk_entry da_quirk_table[] =
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{
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/* SPI, FC devices */
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{
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/*
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* Fujitsu M2513A MO drives.
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* Tested devices: M2513A2 firmware versions 1200 & 1300.
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* (dip switch selects whether T_DIRECT or T_OPTICAL device)
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* Reported by: W.Scholten <whs@xs4all.nl>
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*/
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{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/* See above. */
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{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* This particular Fujitsu drive doesn't like the
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* synchronize cache command.
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* Reported by: Tom Jackson <toj@gorilla.net>
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* This drive doesn't like the synchronize cache command
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* either. Reported by: Matthew Jacob <mjacob@feral.com>
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* in NetBSD PR kern/6027, August 24, 1998.
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* This drive doesn't like the synchronize cache command
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* either. Reported by: Hellmuth Michaelis (hm@kts.org)
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* (PR 8882).
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* Doesn't like the synchronize cache command.
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* Reported by: Blaz Zupan <blaz@gold.amis.net>
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* Doesn't like the synchronize cache command.
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* Doesn't like the synchronize cache command.
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* Doesn't work correctly with 6 byte reads/writes.
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* Returns illegal request, and points to byte 9 of the
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* 6-byte CDB.
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* Reported by: Adam McDougall <bsdx@spawnet.com>
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
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/*quirks*/ DA_Q_NO_6_BYTE
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},
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{
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/* See above. */
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{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
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/*quirks*/ DA_Q_NO_6_BYTE
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},
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{
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/*
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* The CISS RAID controllers do not support SYNC_CACHE
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*/
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{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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/* USB mass storage devices supported by umass(4) */
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{
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/*
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* EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
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* PR: kern/51675
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*/
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{T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* Power Quotient Int. (PQI) USB flash key
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* PR: kern/53067
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*/
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{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
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"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* Creative Nomad MUVO mp3 player (USB)
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* PR: kern/53094
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*/
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{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
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},
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{
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/*
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* Jungsoft NEXDISK USB flash key
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* PR: kern/54737
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*/
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{T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* FreeDik USB Mini Data Drive
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* PR: kern/54786
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*/
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{T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
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"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
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},
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{
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/*
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* Sigmatel USB Flash MP3 Player
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* PR: kern/57046
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*/
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{T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
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/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
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},
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};
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static disk_strategy_t dastrategy;
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static dumper_t dadump;
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static periph_init_t dainit;
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static void daasync(void *callback_arg, u_int32_t code,
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struct cam_path *path, void *arg);
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static void dasysctlinit(void *context, int pending);
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static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
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static periph_ctor_t daregister;
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static periph_dtor_t dacleanup;
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static periph_start_t dastart;
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static periph_oninv_t daoninvalidate;
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static void dadone(struct cam_periph *periph,
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union ccb *done_ccb);
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static int daerror(union ccb *ccb, u_int32_t cam_flags,
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u_int32_t sense_flags);
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static void daprevent(struct cam_periph *periph, int action);
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static int dagetcapacity(struct cam_periph *periph);
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static void dasetgeom(struct cam_periph *periph, uint32_t block_len,
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uint64_t maxsector);
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static timeout_t dasendorderedtag;
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static void dashutdown(void *arg, int howto);
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#ifndef DA_DEFAULT_TIMEOUT
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#define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
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#endif
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#ifndef DA_DEFAULT_RETRY
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#define DA_DEFAULT_RETRY 4
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#endif
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static int da_retry_count = DA_DEFAULT_RETRY;
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static int da_default_timeout = DA_DEFAULT_TIMEOUT;
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SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
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"CAM Direct Access Disk driver");
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SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
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&da_retry_count, 0, "Normal I/O retry count");
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TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
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SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
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&da_default_timeout, 0, "Normal I/O timeout (in seconds)");
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TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
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/*
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* DA_ORDEREDTAG_INTERVAL determines how often, relative
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* to the default timeout, we check to see whether an ordered
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* tagged transaction is appropriate to prevent simple tag
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* starvation. Since we'd like to ensure that there is at least
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* 1/2 of the timeout length left for a starved transaction to
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* complete after we've sent an ordered tag, we must poll at least
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* four times in every timeout period. This takes care of the worst
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* case where a starved transaction starts during an interval that
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* meets the requirement "don't send an ordered tag" test so it takes
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* us two intervals to determine that a tag must be sent.
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*/
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#ifndef DA_ORDEREDTAG_INTERVAL
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#define DA_ORDEREDTAG_INTERVAL 4
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#endif
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static struct periph_driver dadriver =
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{
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dainit, "da",
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TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
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};
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PERIPHDRIVER_DECLARE(da, dadriver);
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static SLIST_HEAD(,da_softc) softc_list;
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static int
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daopen(struct disk *dp)
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{
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struct cam_periph *periph;
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struct da_softc *softc;
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int unit;
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int error;
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int s;
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s = splsoftcam();
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periph = (struct cam_periph *)dp->d_drv1;
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if (periph == NULL) {
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splx(s);
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return (ENXIO);
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}
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unit = periph->unit_number;
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softc = (struct da_softc *)periph->softc;
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CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
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("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
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unit));
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if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0)
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return (error); /* error code from tsleep */
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if (cam_periph_acquire(periph) != CAM_REQ_CMP)
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return(ENXIO);
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softc->flags |= DA_FLAG_OPEN;
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if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
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/* Invalidate our pack information. */
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softc->flags &= ~DA_FLAG_PACK_INVALID;
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}
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splx(s);
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error = dagetcapacity(periph);
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if (error == 0) {
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softc->disk->d_sectorsize = softc->params.secsize;
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softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
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/* XXX: these are not actually "firmware" values, so they may be wrong */
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softc->disk->d_fwsectors = softc->params.secs_per_track;
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softc->disk->d_fwheads = softc->params.heads;
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softc->disk->d_devstat->block_size = softc->params.secsize;
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softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
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}
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if (error == 0) {
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if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
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(softc->quirks & DA_Q_NO_PREVENT) == 0)
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daprevent(periph, PR_PREVENT);
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} else {
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softc->flags &= ~DA_FLAG_OPEN;
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cam_periph_release(periph);
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}
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cam_periph_unlock(periph);
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return (error);
|
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}
|
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|
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static int
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daclose(struct disk *dp)
|
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{
|
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struct cam_periph *periph;
|
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struct da_softc *softc;
|
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int error;
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periph = (struct cam_periph *)dp->d_drv1;
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if (periph == NULL)
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return (ENXIO);
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softc = (struct da_softc *)periph->softc;
|
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|
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if ((error = cam_periph_lock(periph, PRIBIO)) != 0) {
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return (error); /* error code from tsleep */
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}
|
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|
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if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
|
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union ccb *ccb;
|
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|
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ccb = cam_periph_getccb(periph, /*priority*/1);
|
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|
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scsi_synchronize_cache(&ccb->csio,
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/*retries*/1,
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/*cbfcnp*/dadone,
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MSG_SIMPLE_Q_TAG,
|
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/*begin_lba*/0,/* Cover the whole disk */
|
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/*lb_count*/0,
|
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SSD_FULL_SIZE,
|
|
5 * 60 * 1000);
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|
|
|
cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
|
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/*sense_flags*/SF_RETRY_UA,
|
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softc->disk->d_devstat);
|
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|
|
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
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if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
|
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CAM_SCSI_STATUS_ERROR) {
|
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int asc, ascq;
|
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int sense_key, error_code;
|
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|
|
scsi_extract_sense(&ccb->csio.sense_data,
|
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&error_code,
|
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&sense_key,
|
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&asc, &ascq);
|
|
if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
|
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scsi_sense_print(&ccb->csio);
|
|
} else {
|
|
xpt_print_path(periph->path);
|
|
printf("Synchronize cache failed, status "
|
|
"== 0x%x, scsi status == 0x%x\n",
|
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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_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;
|
|
int s;
|
|
|
|
periph = (struct cam_periph *)bp->bio_disk->d_drv1;
|
|
if (periph == NULL) {
|
|
biofinish(bp, NULL, ENXIO);
|
|
return;
|
|
}
|
|
softc = (struct da_softc *)periph->softc;
|
|
#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.
|
|
*/
|
|
s = splbio();
|
|
|
|
/*
|
|
* If the device has been made invalid, error out
|
|
*/
|
|
if ((softc->flags & DA_FLAG_PACK_INVALID)) {
|
|
splx(s);
|
|
biofinish(bp, NULL, ENXIO);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Place it in the queue of disk activities for this disk
|
|
*/
|
|
bioq_disksort(&softc->bio_queue, bp);
|
|
|
|
splx(s);
|
|
|
|
/*
|
|
* Schedule ourselves for performing the work.
|
|
*/
|
|
xpt_schedule(periph, /* XXX priority */1);
|
|
|
|
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;
|
|
secsize = softc->params.secsize;
|
|
|
|
if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
|
|
return (ENXIO);
|
|
|
|
if (length > 0) {
|
|
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);
|
|
return(EIO);
|
|
}
|
|
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_path(periph->path);
|
|
printf("Synchronize cache failed, status "
|
|
"== 0x%x, scsi status == 0x%x\n",
|
|
csio.ccb_h.status, csio.scsi_status);
|
|
}
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
dainit(void)
|
|
{
|
|
cam_status status;
|
|
struct cam_path *path;
|
|
|
|
SLIST_INIT(&softc_list);
|
|
|
|
/*
|
|
* Install a global async callback. This callback will
|
|
* receive async callbacks like "new device found".
|
|
*/
|
|
status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
|
|
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
|
|
|
|
if (status == CAM_REQ_CMP) {
|
|
struct ccb_setasync csa;
|
|
|
|
xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
|
|
csa.ccb_h.func_code = XPT_SASYNC_CB;
|
|
csa.event_enable = AC_FOUND_DEVICE;
|
|
csa.callback = daasync;
|
|
csa.callback_arg = NULL;
|
|
xpt_action((union ccb *)&csa);
|
|
status = csa.ccb_h.status;
|
|
xpt_free_path(path);
|
|
}
|
|
|
|
if (status != CAM_REQ_CMP) {
|
|
printf("da: Failed to attach master async callback "
|
|
"due to status 0x%x!\n", status);
|
|
} else {
|
|
|
|
/*
|
|
* Schedule a periodic event to occasionally send an
|
|
* ordered tag to a device.
|
|
*/
|
|
timeout(dasendorderedtag, NULL,
|
|
(DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL);
|
|
|
|
/* 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)
|
|
{
|
|
int s;
|
|
struct da_softc *softc;
|
|
struct ccb_setasync csa;
|
|
|
|
softc = (struct da_softc *)periph->softc;
|
|
|
|
/*
|
|
* De-register any async callbacks.
|
|
*/
|
|
xpt_setup_ccb(&csa.ccb_h, periph->path,
|
|
/* priority */ 5);
|
|
csa.ccb_h.func_code = XPT_SASYNC_CB;
|
|
csa.event_enable = 0;
|
|
csa.callback = daasync;
|
|
csa.callback_arg = periph;
|
|
xpt_action((union ccb *)&csa);
|
|
|
|
softc->flags |= DA_FLAG_PACK_INVALID;
|
|
|
|
/*
|
|
* Although the oninvalidate() routines are always called at
|
|
* splsoftcam, we need to be at splbio() here to keep the buffer
|
|
* queue from being modified while we traverse it.
|
|
*/
|
|
s = splbio();
|
|
|
|
/*
|
|
* 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);
|
|
splx(s);
|
|
|
|
SLIST_REMOVE(&softc_list, softc, da_softc, links);
|
|
|
|
xpt_print_path(periph->path);
|
|
printf("lost device\n");
|
|
}
|
|
|
|
static void
|
|
dacleanup(struct cam_periph *periph)
|
|
{
|
|
struct da_softc *softc;
|
|
|
|
softc = (struct da_softc *)periph->softc;
|
|
|
|
xpt_print_path(periph->path);
|
|
printf("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_path(periph->path);
|
|
printf("can't remove sysctl context\n");
|
|
}
|
|
disk_destroy(softc->disk);
|
|
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;
|
|
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.
|
|
*/
|
|
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;
|
|
int s;
|
|
|
|
softc = (struct da_softc *)periph->softc;
|
|
s = splsoftcam();
|
|
/*
|
|
* 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;
|
|
splx(s);
|
|
/* 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;
|
|
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");
|
|
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);
|
|
}
|
|
|
|
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)
|
|
{
|
|
int s;
|
|
struct da_softc *softc;
|
|
struct ccb_setasync csa;
|
|
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;
|
|
|
|
/*
|
|
* Block our timeout handler while we
|
|
* add this softc to the dev list.
|
|
*/
|
|
s = splsoftclock();
|
|
SLIST_INSERT_HEAD(&softc_list, softc, links);
|
|
splx(s);
|
|
|
|
/*
|
|
* Register this media as a disk
|
|
*/
|
|
|
|
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 = DISKFLAG_NEEDSGIANT;
|
|
disk_create(softc->disk, DISK_VERSION);
|
|
|
|
/*
|
|
* 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_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
|
|
csa.ccb_h.func_code = XPT_SASYNC_CB;
|
|
csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
|
|
csa.callback = daasync;
|
|
csa.callback_arg = periph;
|
|
xpt_action((union ccb *)&csa);
|
|
/*
|
|
* Lock this peripheral until we are setup.
|
|
* This first call can't block
|
|
*/
|
|
(void)cam_periph_lock(periph, PRIBIO);
|
|
xpt_schedule(periph, /*priority*/5);
|
|
|
|
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;
|
|
int s;
|
|
|
|
/*
|
|
* See if there is a buf with work for us to do..
|
|
*/
|
|
s = splbio();
|
|
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;
|
|
splx(s);
|
|
wakeup(&periph->ccb_list);
|
|
} else if (bp == NULL) {
|
|
splx(s);
|
|
xpt_release_ccb(start_ccb);
|
|
} else {
|
|
int oldspl;
|
|
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;
|
|
}
|
|
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);
|
|
start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
|
|
|
|
/*
|
|
* Block out any asyncronous callbacks
|
|
* while we touch the pending ccb list.
|
|
*/
|
|
oldspl = splcam();
|
|
LIST_INSERT_HEAD(&softc->pending_ccbs,
|
|
&start_ccb->ccb_h, periph_links.le);
|
|
softc->outstanding_cmds++;
|
|
splx(oldspl);
|
|
|
|
/* 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);
|
|
splx(s);
|
|
|
|
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_TEMP,
|
|
M_NOWAIT);
|
|
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_TEMP, M_NOWAIT);
|
|
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_path(ccb->ccb_h.path);
|
|
printf("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;
|
|
int oldspl;
|
|
|
|
bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
|
|
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
int error;
|
|
int s;
|
|
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) {
|
|
|
|
s = splbio();
|
|
|
|
if (error == ENXIO) {
|
|
/*
|
|
* Catastrophic error. Mark our pack as
|
|
* invalid.
|
|
*/
|
|
/* XXX See if this is really a media
|
|
* change first.
|
|
*/
|
|
xpt_print_path(periph->path);
|
|
printf("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);
|
|
splx(s);
|
|
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.
|
|
*/
|
|
oldspl = splcam();
|
|
LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
|
|
softc->outstanding_cmds--;
|
|
if (softc->outstanding_cmds == 0)
|
|
softc->flags |= DA_FLAG_WENT_IDLE;
|
|
splx(oldspl);
|
|
|
|
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_TEMP);
|
|
xpt_release_ccb(done_ccb);
|
|
xpt_schedule(periph, /*priority*/5);
|
|
return;
|
|
}
|
|
} else {
|
|
block_size = scsi_4btoul(rcaplong->length);
|
|
maxsector = scsi_8btou64(rcaplong->addr);
|
|
}
|
|
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_path(periph->path);
|
|
printf("got CAM status %#x\n",
|
|
done_ccb->ccb_h.status);
|
|
}
|
|
|
|
xpt_print_path(periph->path);
|
|
printf("fatal error, failed"
|
|
" to attach to device\n");
|
|
|
|
/*
|
|
* Free up resources.
|
|
*/
|
|
cam_periph_invalidate(periph);
|
|
}
|
|
}
|
|
}
|
|
free(csio->data_ptr, M_TEMP);
|
|
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_unlock(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;
|
|
|
|
softc = (struct da_softc *)periph->softc;
|
|
block_len = 0;
|
|
maxsector = 0;
|
|
error = 0;
|
|
|
|
/* Do a read capacity */
|
|
rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
|
|
M_TEMP,
|
|
M_WAITOK);
|
|
|
|
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*/SF_RETRY_UA,
|
|
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*/SF_RETRY_UA,
|
|
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_TEMP);
|
|
|
|
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);
|
|
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;
|
|
int s;
|
|
|
|
for (softc = SLIST_FIRST(&softc_list);
|
|
softc != NULL;
|
|
softc = SLIST_NEXT(softc, links)) {
|
|
s = splsoftcam();
|
|
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;
|
|
splx(s);
|
|
}
|
|
/* Queue us up again */
|
|
timeout(dasendorderedtag, NULL,
|
|
(da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL);
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
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))
|
|
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_path(periph->path);
|
|
printf("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);
|
|
|
|
}
|
|
}
|
|
|
|
#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 */
|