39b696507f
whole bus (XPT_SCAN_BUS) and a single lun on that bus (XPT_SCAN_LUN). It's less resource comsumptive than scanning a whole bus when the caller knows only one target has changes. Reviewed by: scsi@ Sponsored by: Panasas MFC after: 1 month
2521 lines
71 KiB
C
2521 lines
71 KiB
C
/*-
|
|
* Implementation of the SCSI Transport
|
|
*
|
|
* Copyright (c) 1997, 1998, 1999 Justin T. Gibbs.
|
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* Copyright (c) 1997, 1998, 1999 Kenneth D. Merry.
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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
|
|
* 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
|
|
* 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
|
|
* 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
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* 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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|
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/time.h>
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#include <sys/conf.h>
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#include <sys/fcntl.h>
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#include <sys/md5.h>
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#include <sys/interrupt.h>
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#include <sys/sbuf.h>
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|
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sysctl.h>
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|
|
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_queue.h>
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#include <cam/cam_periph.h>
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#include <cam/cam_sim.h>
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#include <cam/cam_xpt.h>
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#include <cam/cam_xpt_sim.h>
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#include <cam/cam_xpt_periph.h>
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#include <cam/cam_xpt_internal.h>
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#include <cam/cam_debug.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/scsi_message.h>
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#include <cam/scsi/scsi_pass.h>
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#include <machine/stdarg.h> /* for xpt_print below */
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#include "opt_cam.h"
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|
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struct scsi_quirk_entry {
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struct scsi_inquiry_pattern inq_pat;
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u_int8_t quirks;
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#define CAM_QUIRK_NOLUNS 0x01
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#define CAM_QUIRK_NOSERIAL 0x02
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#define CAM_QUIRK_HILUNS 0x04
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#define CAM_QUIRK_NOHILUNS 0x08
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u_int mintags;
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u_int maxtags;
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};
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#define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk))
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static int cam_srch_hi = 0;
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TUNABLE_INT("kern.cam.cam_srch_hi", &cam_srch_hi);
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static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS);
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SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT|CTLFLAG_RW, 0, 0,
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sysctl_cam_search_luns, "I",
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"allow search above LUN 7 for SCSI3 and greater devices");
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|
|
#define CAM_SCSI2_MAXLUN 8
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/*
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* If we're not quirked to search <= the first 8 luns
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* and we are either quirked to search above lun 8,
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* or we're > SCSI-2 and we've enabled hilun searching,
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* or we're > SCSI-2 and the last lun was a success,
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* we can look for luns above lun 8.
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*/
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#define CAN_SRCH_HI_SPARSE(dv) \
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(((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
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&& ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
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|| (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi)))
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#define CAN_SRCH_HI_DENSE(dv) \
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(((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
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&& ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
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|| (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2)))
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static periph_init_t probe_periph_init;
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static struct periph_driver probe_driver =
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{
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probe_periph_init, "probe",
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TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0,
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CAM_PERIPH_DRV_EARLY
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};
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PERIPHDRIVER_DECLARE(probe, probe_driver);
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typedef enum {
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PROBE_TUR,
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PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */
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PROBE_FULL_INQUIRY,
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PROBE_MODE_SENSE,
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PROBE_SERIAL_NUM_0,
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PROBE_SERIAL_NUM_1,
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PROBE_TUR_FOR_NEGOTIATION,
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PROBE_INQUIRY_BASIC_DV1,
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PROBE_INQUIRY_BASIC_DV2,
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PROBE_DV_EXIT,
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PROBE_INVALID
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} probe_action;
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static char *probe_action_text[] = {
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"PROBE_TUR",
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"PROBE_INQUIRY",
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"PROBE_FULL_INQUIRY",
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"PROBE_MODE_SENSE",
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"PROBE_SERIAL_NUM_0",
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"PROBE_SERIAL_NUM_1",
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"PROBE_TUR_FOR_NEGOTIATION",
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"PROBE_INQUIRY_BASIC_DV1",
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"PROBE_INQUIRY_BASIC_DV2",
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"PROBE_DV_EXIT",
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"PROBE_INVALID"
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};
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#define PROBE_SET_ACTION(softc, newaction) \
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do { \
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char **text; \
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text = probe_action_text; \
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CAM_DEBUG((softc)->periph->path, CAM_DEBUG_INFO, \
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("Probe %s to %s\n", text[(softc)->action], \
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text[(newaction)])); \
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(softc)->action = (newaction); \
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} while(0)
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typedef enum {
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PROBE_INQUIRY_CKSUM = 0x01,
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PROBE_SERIAL_CKSUM = 0x02,
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PROBE_NO_ANNOUNCE = 0x04
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} probe_flags;
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typedef struct {
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TAILQ_HEAD(, ccb_hdr) request_ccbs;
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probe_action action;
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union ccb saved_ccb;
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probe_flags flags;
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MD5_CTX context;
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u_int8_t digest[16];
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struct cam_periph *periph;
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} probe_softc;
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static const char quantum[] = "QUANTUM";
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static const char sony[] = "SONY";
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static const char west_digital[] = "WDIGTL";
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static const char samsung[] = "SAMSUNG";
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static const char seagate[] = "SEAGATE";
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static const char microp[] = "MICROP";
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static struct scsi_quirk_entry scsi_quirk_table[] =
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{
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{
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/* Reports QUEUE FULL for temporary resource shortages */
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{ T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" },
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/*quirks*/0, /*mintags*/24, /*maxtags*/32
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},
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{
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/* Reports QUEUE FULL for temporary resource shortages */
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{ T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" },
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/*quirks*/0, /*mintags*/24, /*maxtags*/32
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},
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{
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/* Reports QUEUE FULL for temporary resource shortages */
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{ T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" },
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/*quirks*/0, /*mintags*/24, /*maxtags*/32
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},
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{
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/* Broken tagged queuing drive */
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{ T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" },
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/*quirks*/0, /*mintags*/0, /*maxtags*/0
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},
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{
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/* Broken tagged queuing drive */
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{ T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" },
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/*quirks*/0, /*mintags*/0, /*maxtags*/0
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},
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{
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/* Broken tagged queuing drive */
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{ T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" },
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/*quirks*/0, /*mintags*/0, /*maxtags*/0
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},
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{
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/*
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* Unfortunately, the Quantum Atlas III has the same
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* problem as the Atlas II drives above.
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* Reported by: "Johan Granlund" <johan@granlund.nu>
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*
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* For future reference, the drive with the problem was:
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* QUANTUM QM39100TD-SW N1B0
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*
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* It's possible that Quantum will fix the problem in later
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* firmware revisions. If that happens, the quirk entry
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* will need to be made specific to the firmware revisions
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* with the problem.
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*
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*/
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/* Reports QUEUE FULL for temporary resource shortages */
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{ T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" },
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/*quirks*/0, /*mintags*/24, /*maxtags*/32
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},
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{
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/*
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* 18 Gig Atlas III, same problem as the 9G version.
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* Reported by: Andre Albsmeier
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* <andre.albsmeier@mchp.siemens.de>
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*
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* For future reference, the drive with the problem was:
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* QUANTUM QM318000TD-S N491
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*/
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/* Reports QUEUE FULL for temporary resource shortages */
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{ T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" },
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/*quirks*/0, /*mintags*/24, /*maxtags*/32
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},
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{
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/*
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* Broken tagged queuing drive
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* Reported by: Bret Ford <bford@uop.cs.uop.edu>
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* and: Martin Renters <martin@tdc.on.ca>
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*/
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{ T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" },
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/*quirks*/0, /*mintags*/0, /*maxtags*/0
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},
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/*
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* The Seagate Medalist Pro drives have very poor write
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* performance with anything more than 2 tags.
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*
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* Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl>
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* Drive: <SEAGATE ST36530N 1444>
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*
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* Reported by: Jeremy Lea <reg@shale.csir.co.za>
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* Drive: <SEAGATE ST34520W 1281>
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*
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* No one has actually reported that the 9G version
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* (ST39140*) of the Medalist Pro has the same problem, but
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* we're assuming that it does because the 4G and 6.5G
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* versions of the drive are broken.
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*/
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{
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{ T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"},
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/*quirks*/0, /*mintags*/2, /*maxtags*/2
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},
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{
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{ T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"},
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/*quirks*/0, /*mintags*/2, /*maxtags*/2
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},
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{
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{ T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"},
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/*quirks*/0, /*mintags*/2, /*maxtags*/2
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},
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{
|
|
/*
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* Slow when tagged queueing is enabled. Write performance
|
|
* steadily drops off with more and more concurrent
|
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* transactions. Best sequential write performance with
|
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* tagged queueing turned off and write caching turned on.
|
|
*
|
|
* PR: kern/10398
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|
* Submitted by: Hideaki Okada <hokada@isl.melco.co.jp>
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|
* Drive: DCAS-34330 w/ "S65A" firmware.
|
|
*
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|
* The drive with the problem had the "S65A" firmware
|
|
* revision, and has also been reported (by Stephen J.
|
|
* Roznowski <sjr@home.net>) for a drive with the "S61A"
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|
* firmware revision.
|
|
*
|
|
* Although no one has reported problems with the 2 gig
|
|
* version of the DCAS drive, the assumption is that it
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* has the same problems as the 4 gig version. Therefore
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* this quirk entries disables tagged queueing for all
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* DCAS drives.
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*/
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{ T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" },
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/*quirks*/0, /*mintags*/0, /*maxtags*/0
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},
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|
{
|
|
/* Broken tagged queuing drive */
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{ T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" },
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/*quirks*/0, /*mintags*/0, /*maxtags*/0
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|
},
|
|
{
|
|
/* Broken tagged queuing drive */
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" },
|
|
/*quirks*/0, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/* This does not support other than LUN 0 */
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{ T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" },
|
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CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
|
|
},
|
|
{
|
|
/*
|
|
* Broken tagged queuing drive.
|
|
* Submitted by:
|
|
* NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp>
|
|
* in PR kern/9535
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|
*/
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" },
|
|
/*quirks*/0, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* Slow when tagged queueing is enabled. (1.5MB/sec versus
|
|
* 8MB/sec.)
|
|
* Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
|
|
* Best performance with these drives is achieved with
|
|
* tagged queueing turned off, and write caching turned on.
|
|
*/
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" },
|
|
/*quirks*/0, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* Slow when tagged queueing is enabled. (1.5MB/sec versus
|
|
* 8MB/sec.)
|
|
* Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
|
|
* Best performance with these drives is achieved with
|
|
* tagged queueing turned off, and write caching turned on.
|
|
*/
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" },
|
|
/*quirks*/0, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* Doesn't handle queue full condition correctly,
|
|
* so we need to limit maxtags to what the device
|
|
* can handle instead of determining this automatically.
|
|
*/
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" },
|
|
/*quirks*/0, /*mintags*/2, /*maxtags*/32
|
|
},
|
|
{
|
|
/* Really only one LUN */
|
|
{ T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/* I can't believe we need a quirk for DPT volumes. */
|
|
{ T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" },
|
|
CAM_QUIRK_NOLUNS,
|
|
/*mintags*/0, /*maxtags*/255
|
|
},
|
|
{
|
|
/*
|
|
* Many Sony CDROM drives don't like multi-LUN probing.
|
|
*/
|
|
{ T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* This drive doesn't like multiple LUN probing.
|
|
* Submitted by: Parag Patel <parag@cgt.com>
|
|
*/
|
|
{ T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
{ T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* The 8200 doesn't like multi-lun probing, and probably
|
|
* don't like serial number requests either.
|
|
*/
|
|
{
|
|
T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
|
|
"EXB-8200*", "*"
|
|
},
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* Let's try the same as above, but for a drive that says
|
|
* it's an IPL-6860 but is actually an EXB 8200.
|
|
*/
|
|
{
|
|
T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
|
|
"IPL-6860*", "*"
|
|
},
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* These Hitachi drives don't like multi-lun probing.
|
|
* The PR submitter has a DK319H, but says that the Linux
|
|
* kernel has a similar work-around for the DK312 and DK314,
|
|
* so all DK31* drives are quirked here.
|
|
* PR: misc/18793
|
|
* Submitted by: Paul Haddad <paul@pth.com>
|
|
*/
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
|
|
},
|
|
{
|
|
/*
|
|
* The Hitachi CJ series with J8A8 firmware apparantly has
|
|
* problems with tagged commands.
|
|
* PR: 23536
|
|
* Reported by: amagai@nue.org
|
|
*/
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* These are the large storage arrays.
|
|
* Submitted by: William Carrel <william.carrel@infospace.com>
|
|
*/
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" },
|
|
CAM_QUIRK_HILUNS, 2, 1024
|
|
},
|
|
{
|
|
/*
|
|
* This old revision of the TDC3600 is also SCSI-1, and
|
|
* hangs upon serial number probing.
|
|
*/
|
|
{
|
|
T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
|
|
" TDC 3600", "U07:"
|
|
},
|
|
CAM_QUIRK_NOSERIAL, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* Would repond to all LUNs if asked for.
|
|
*/
|
|
{
|
|
T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER",
|
|
"CP150", "*"
|
|
},
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/*
|
|
* Would repond to all LUNs if asked for.
|
|
*/
|
|
{
|
|
T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
|
|
"96X2*", "*"
|
|
},
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/* Submitted by: Matthew Dodd <winter@jurai.net> */
|
|
{ T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/* Submitted by: Matthew Dodd <winter@jurai.net> */
|
|
{ T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/* TeraSolutions special settings for TRC-22 RAID */
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" },
|
|
/*quirks*/0, /*mintags*/55, /*maxtags*/255
|
|
},
|
|
{
|
|
/* Veritas Storage Appliance */
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" },
|
|
CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024
|
|
},
|
|
{
|
|
/*
|
|
* Would respond to all LUNs. Device type and removable
|
|
* flag are jumper-selectable.
|
|
*/
|
|
{ T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix",
|
|
"Tahiti 1", "*"
|
|
},
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/* EasyRAID E5A aka. areca ARC-6010 */
|
|
{ T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" },
|
|
CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255
|
|
},
|
|
{
|
|
{ T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" },
|
|
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
|
|
},
|
|
{
|
|
/* Default tagged queuing parameters for all devices */
|
|
{
|
|
T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED,
|
|
/*vendor*/"*", /*product*/"*", /*revision*/"*"
|
|
},
|
|
/*quirks*/0, /*mintags*/2, /*maxtags*/255
|
|
},
|
|
};
|
|
|
|
static const int scsi_quirk_table_size =
|
|
sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table);
|
|
|
|
static cam_status proberegister(struct cam_periph *periph,
|
|
void *arg);
|
|
static void probeschedule(struct cam_periph *probe_periph);
|
|
static void probestart(struct cam_periph *periph, union ccb *start_ccb);
|
|
static void proberequestdefaultnegotiation(struct cam_periph *periph);
|
|
static int proberequestbackoff(struct cam_periph *periph,
|
|
struct cam_ed *device);
|
|
static void probedone(struct cam_periph *periph, union ccb *done_ccb);
|
|
static void probecleanup(struct cam_periph *periph);
|
|
static void scsi_find_quirk(struct cam_ed *device);
|
|
static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb);
|
|
static void scsi_scan_lun(struct cam_periph *periph,
|
|
struct cam_path *path, cam_flags flags,
|
|
union ccb *ccb);
|
|
static void xptscandone(struct cam_periph *periph, union ccb *done_ccb);
|
|
static struct cam_ed *
|
|
scsi_alloc_device(struct cam_eb *bus, struct cam_et *target,
|
|
lun_id_t lun_id);
|
|
static void scsi_devise_transport(struct cam_path *path);
|
|
static void scsi_set_transfer_settings(struct ccb_trans_settings *cts,
|
|
struct cam_ed *device,
|
|
int async_update);
|
|
static void scsi_toggle_tags(struct cam_path *path);
|
|
static void scsi_dev_async(u_int32_t async_code,
|
|
struct cam_eb *bus,
|
|
struct cam_et *target,
|
|
struct cam_ed *device,
|
|
void *async_arg);
|
|
static void scsi_action(union ccb *start_ccb);
|
|
static void scsi_announce_periph(struct cam_periph *periph);
|
|
|
|
static struct xpt_xport scsi_xport = {
|
|
.alloc_device = scsi_alloc_device,
|
|
.action = scsi_action,
|
|
.async = scsi_dev_async,
|
|
.announce = scsi_announce_periph,
|
|
};
|
|
|
|
struct xpt_xport *
|
|
scsi_get_xport(void)
|
|
{
|
|
return (&scsi_xport);
|
|
}
|
|
|
|
static void
|
|
probe_periph_init()
|
|
{
|
|
}
|
|
|
|
static cam_status
|
|
proberegister(struct cam_periph *periph, void *arg)
|
|
{
|
|
union ccb *request_ccb; /* CCB representing the probe request */
|
|
cam_status status;
|
|
probe_softc *softc;
|
|
|
|
request_ccb = (union ccb *)arg;
|
|
if (periph == NULL) {
|
|
printf("proberegister: periph was NULL!!\n");
|
|
return(CAM_REQ_CMP_ERR);
|
|
}
|
|
|
|
if (request_ccb == NULL) {
|
|
printf("proberegister: no probe CCB, "
|
|
"can't register device\n");
|
|
return(CAM_REQ_CMP_ERR);
|
|
}
|
|
|
|
softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT);
|
|
|
|
if (softc == NULL) {
|
|
printf("proberegister: Unable to probe new device. "
|
|
"Unable to allocate softc\n");
|
|
return(CAM_REQ_CMP_ERR);
|
|
}
|
|
TAILQ_INIT(&softc->request_ccbs);
|
|
TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h,
|
|
periph_links.tqe);
|
|
softc->flags = 0;
|
|
periph->softc = softc;
|
|
softc->periph = periph;
|
|
softc->action = PROBE_INVALID;
|
|
status = cam_periph_acquire(periph);
|
|
if (status != CAM_REQ_CMP) {
|
|
return (status);
|
|
}
|
|
|
|
|
|
/*
|
|
* Ensure we've waited at least a bus settle
|
|
* delay before attempting to probe the device.
|
|
* For HBAs that don't do bus resets, this won't make a difference.
|
|
*/
|
|
cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset,
|
|
scsi_delay);
|
|
/*
|
|
* Ensure nobody slip in until probe finish.
|
|
*/
|
|
cam_freeze_devq_arg(periph->path,
|
|
RELSIM_RELEASE_RUNLEVEL, CAM_RL_XPT + 1);
|
|
probeschedule(periph);
|
|
return(CAM_REQ_CMP);
|
|
}
|
|
|
|
static void
|
|
probeschedule(struct cam_periph *periph)
|
|
{
|
|
struct ccb_pathinq cpi;
|
|
union ccb *ccb;
|
|
probe_softc *softc;
|
|
|
|
softc = (probe_softc *)periph->softc;
|
|
ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
|
|
|
|
xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE);
|
|
cpi.ccb_h.func_code = XPT_PATH_INQ;
|
|
xpt_action((union ccb *)&cpi);
|
|
|
|
/*
|
|
* If a device has gone away and another device, or the same one,
|
|
* is back in the same place, it should have a unit attention
|
|
* condition pending. It will not report the unit attention in
|
|
* response to an inquiry, which may leave invalid transfer
|
|
* negotiations in effect. The TUR will reveal the unit attention
|
|
* condition. Only send the TUR for lun 0, since some devices
|
|
* will get confused by commands other than inquiry to non-existent
|
|
* luns. If you think a device has gone away start your scan from
|
|
* lun 0. This will insure that any bogus transfer settings are
|
|
* invalidated.
|
|
*
|
|
* If we haven't seen the device before and the controller supports
|
|
* some kind of transfer negotiation, negotiate with the first
|
|
* sent command if no bus reset was performed at startup. This
|
|
* ensures that the device is not confused by transfer negotiation
|
|
* settings left over by loader or BIOS action.
|
|
*/
|
|
if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
|
|
&& (ccb->ccb_h.target_lun == 0)) {
|
|
PROBE_SET_ACTION(softc, PROBE_TUR);
|
|
} else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0
|
|
&& (cpi.hba_misc & PIM_NOBUSRESET) != 0) {
|
|
proberequestdefaultnegotiation(periph);
|
|
PROBE_SET_ACTION(softc, PROBE_INQUIRY);
|
|
} else {
|
|
PROBE_SET_ACTION(softc, PROBE_INQUIRY);
|
|
}
|
|
|
|
if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE)
|
|
softc->flags |= PROBE_NO_ANNOUNCE;
|
|
else
|
|
softc->flags &= ~PROBE_NO_ANNOUNCE;
|
|
|
|
xpt_schedule(periph, CAM_PRIORITY_XPT);
|
|
}
|
|
|
|
static void
|
|
probestart(struct cam_periph *periph, union ccb *start_ccb)
|
|
{
|
|
/* Probe the device that our peripheral driver points to */
|
|
struct ccb_scsiio *csio;
|
|
probe_softc *softc;
|
|
|
|
CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n"));
|
|
|
|
softc = (probe_softc *)periph->softc;
|
|
csio = &start_ccb->csio;
|
|
|
|
switch (softc->action) {
|
|
case PROBE_TUR:
|
|
case PROBE_TUR_FOR_NEGOTIATION:
|
|
case PROBE_DV_EXIT:
|
|
{
|
|
scsi_test_unit_ready(csio,
|
|
/*retries*/10,
|
|
probedone,
|
|
MSG_SIMPLE_Q_TAG,
|
|
SSD_FULL_SIZE,
|
|
/*timeout*/60000);
|
|
break;
|
|
}
|
|
case PROBE_INQUIRY:
|
|
case PROBE_FULL_INQUIRY:
|
|
case PROBE_INQUIRY_BASIC_DV1:
|
|
case PROBE_INQUIRY_BASIC_DV2:
|
|
{
|
|
u_int inquiry_len;
|
|
struct scsi_inquiry_data *inq_buf;
|
|
|
|
inq_buf = &periph->path->device->inq_data;
|
|
|
|
/*
|
|
* If the device is currently configured, we calculate an
|
|
* MD5 checksum of the inquiry data, and if the serial number
|
|
* length is greater than 0, add the serial number data
|
|
* into the checksum as well. Once the inquiry and the
|
|
* serial number check finish, we attempt to figure out
|
|
* whether we still have the same device.
|
|
*/
|
|
if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
|
|
|
|
MD5Init(&softc->context);
|
|
MD5Update(&softc->context, (unsigned char *)inq_buf,
|
|
sizeof(struct scsi_inquiry_data));
|
|
softc->flags |= PROBE_INQUIRY_CKSUM;
|
|
if (periph->path->device->serial_num_len > 0) {
|
|
MD5Update(&softc->context,
|
|
periph->path->device->serial_num,
|
|
periph->path->device->serial_num_len);
|
|
softc->flags |= PROBE_SERIAL_CKSUM;
|
|
}
|
|
MD5Final(softc->digest, &softc->context);
|
|
}
|
|
|
|
if (softc->action == PROBE_INQUIRY)
|
|
inquiry_len = SHORT_INQUIRY_LENGTH;
|
|
else
|
|
inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf);
|
|
|
|
/*
|
|
* Some parallel SCSI devices fail to send an
|
|
* ignore wide residue message when dealing with
|
|
* odd length inquiry requests. Round up to be
|
|
* safe.
|
|
*/
|
|
inquiry_len = roundup2(inquiry_len, 2);
|
|
|
|
if (softc->action == PROBE_INQUIRY_BASIC_DV1
|
|
|| softc->action == PROBE_INQUIRY_BASIC_DV2) {
|
|
inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT);
|
|
}
|
|
if (inq_buf == NULL) {
|
|
xpt_print(periph->path, "malloc failure- skipping Basic"
|
|
"Domain Validation\n");
|
|
PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
|
|
scsi_test_unit_ready(csio,
|
|
/*retries*/4,
|
|
probedone,
|
|
MSG_SIMPLE_Q_TAG,
|
|
SSD_FULL_SIZE,
|
|
/*timeout*/60000);
|
|
break;
|
|
}
|
|
scsi_inquiry(csio,
|
|
/*retries*/4,
|
|
probedone,
|
|
MSG_SIMPLE_Q_TAG,
|
|
(u_int8_t *)inq_buf,
|
|
inquiry_len,
|
|
/*evpd*/FALSE,
|
|
/*page_code*/0,
|
|
SSD_MIN_SIZE,
|
|
/*timeout*/60 * 1000);
|
|
break;
|
|
}
|
|
case PROBE_MODE_SENSE:
|
|
{
|
|
void *mode_buf;
|
|
int mode_buf_len;
|
|
|
|
mode_buf_len = sizeof(struct scsi_mode_header_6)
|
|
+ sizeof(struct scsi_mode_blk_desc)
|
|
+ sizeof(struct scsi_control_page);
|
|
mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT);
|
|
if (mode_buf != NULL) {
|
|
scsi_mode_sense(csio,
|
|
/*retries*/4,
|
|
probedone,
|
|
MSG_SIMPLE_Q_TAG,
|
|
/*dbd*/FALSE,
|
|
SMS_PAGE_CTRL_CURRENT,
|
|
SMS_CONTROL_MODE_PAGE,
|
|
mode_buf,
|
|
mode_buf_len,
|
|
SSD_FULL_SIZE,
|
|
/*timeout*/60000);
|
|
break;
|
|
}
|
|
xpt_print(periph->path, "Unable to mode sense control page - "
|
|
"malloc failure\n");
|
|
PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_0);
|
|
}
|
|
/* FALLTHROUGH */
|
|
case PROBE_SERIAL_NUM_0:
|
|
{
|
|
struct scsi_vpd_supported_page_list *vpd_list = NULL;
|
|
struct cam_ed *device;
|
|
|
|
device = periph->path->device;
|
|
if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOSERIAL) == 0) {
|
|
vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT,
|
|
M_NOWAIT | M_ZERO);
|
|
}
|
|
|
|
if (vpd_list != NULL) {
|
|
scsi_inquiry(csio,
|
|
/*retries*/4,
|
|
probedone,
|
|
MSG_SIMPLE_Q_TAG,
|
|
(u_int8_t *)vpd_list,
|
|
sizeof(*vpd_list),
|
|
/*evpd*/TRUE,
|
|
SVPD_SUPPORTED_PAGE_LIST,
|
|
SSD_MIN_SIZE,
|
|
/*timeout*/60 * 1000);
|
|
break;
|
|
}
|
|
/*
|
|
* We'll have to do without, let our probedone
|
|
* routine finish up for us.
|
|
*/
|
|
start_ccb->csio.data_ptr = NULL;
|
|
probedone(periph, start_ccb);
|
|
return;
|
|
}
|
|
case PROBE_SERIAL_NUM_1:
|
|
{
|
|
struct scsi_vpd_unit_serial_number *serial_buf;
|
|
struct cam_ed* device;
|
|
|
|
serial_buf = NULL;
|
|
device = periph->path->device;
|
|
if (device->serial_num != NULL) {
|
|
free(device->serial_num, M_CAMXPT);
|
|
device->serial_num = NULL;
|
|
device->serial_num_len = 0;
|
|
}
|
|
|
|
serial_buf = (struct scsi_vpd_unit_serial_number *)
|
|
malloc(sizeof(*serial_buf), M_CAMXPT, M_NOWAIT|M_ZERO);
|
|
|
|
if (serial_buf != NULL) {
|
|
scsi_inquiry(csio,
|
|
/*retries*/4,
|
|
probedone,
|
|
MSG_SIMPLE_Q_TAG,
|
|
(u_int8_t *)serial_buf,
|
|
sizeof(*serial_buf),
|
|
/*evpd*/TRUE,
|
|
SVPD_UNIT_SERIAL_NUMBER,
|
|
SSD_MIN_SIZE,
|
|
/*timeout*/60 * 1000);
|
|
break;
|
|
}
|
|
/*
|
|
* We'll have to do without, let our probedone
|
|
* routine finish up for us.
|
|
*/
|
|
start_ccb->csio.data_ptr = NULL;
|
|
probedone(periph, start_ccb);
|
|
return;
|
|
}
|
|
case PROBE_INVALID:
|
|
CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
|
|
("probestart: invalid action state\n"));
|
|
default:
|
|
break;
|
|
}
|
|
xpt_action(start_ccb);
|
|
}
|
|
|
|
static void
|
|
proberequestdefaultnegotiation(struct cam_periph *periph)
|
|
{
|
|
struct ccb_trans_settings cts;
|
|
|
|
xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
|
|
cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
|
|
cts.type = CTS_TYPE_USER_SETTINGS;
|
|
xpt_action((union ccb *)&cts);
|
|
if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
return;
|
|
}
|
|
cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
|
|
cts.type = CTS_TYPE_CURRENT_SETTINGS;
|
|
xpt_action((union ccb *)&cts);
|
|
}
|
|
|
|
/*
|
|
* Backoff Negotiation Code- only pertinent for SPI devices.
|
|
*/
|
|
static int
|
|
proberequestbackoff(struct cam_periph *periph, struct cam_ed *device)
|
|
{
|
|
struct ccb_trans_settings cts;
|
|
struct ccb_trans_settings_spi *spi;
|
|
|
|
memset(&cts, 0, sizeof (cts));
|
|
xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
|
|
cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
|
|
cts.type = CTS_TYPE_CURRENT_SETTINGS;
|
|
xpt_action((union ccb *)&cts);
|
|
if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
if (bootverbose) {
|
|
xpt_print(periph->path,
|
|
"failed to get current device settings\n");
|
|
}
|
|
return (0);
|
|
}
|
|
if (cts.transport != XPORT_SPI) {
|
|
if (bootverbose) {
|
|
xpt_print(periph->path, "not SPI transport\n");
|
|
}
|
|
return (0);
|
|
}
|
|
spi = &cts.xport_specific.spi;
|
|
|
|
/*
|
|
* We cannot renegotiate sync rate if we don't have one.
|
|
*/
|
|
if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
|
|
if (bootverbose) {
|
|
xpt_print(periph->path, "no sync rate known\n");
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* We'll assert that we don't have to touch PPR options- the
|
|
* SIM will see what we do with period and offset and adjust
|
|
* the PPR options as appropriate.
|
|
*/
|
|
|
|
/*
|
|
* A sync rate with unknown or zero offset is nonsensical.
|
|
* A sync period of zero means Async.
|
|
*/
|
|
if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0
|
|
|| spi->sync_offset == 0 || spi->sync_period == 0) {
|
|
if (bootverbose) {
|
|
xpt_print(periph->path, "no sync rate available\n");
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
if (device->flags & CAM_DEV_DV_HIT_BOTTOM) {
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
|
|
("hit async: giving up on DV\n"));
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Jump sync_period up by one, but stop at 5MHz and fall back to Async.
|
|
* We don't try to remember 'last' settings to see if the SIM actually
|
|
* gets into the speed we want to set. We check on the SIM telling
|
|
* us that a requested speed is bad, but otherwise don't try and
|
|
* check the speed due to the asynchronous and handshake nature
|
|
* of speed setting.
|
|
*/
|
|
spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET;
|
|
for (;;) {
|
|
spi->sync_period++;
|
|
if (spi->sync_period >= 0xf) {
|
|
spi->sync_period = 0;
|
|
spi->sync_offset = 0;
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
|
|
("setting to async for DV\n"));
|
|
/*
|
|
* Once we hit async, we don't want to try
|
|
* any more settings.
|
|
*/
|
|
device->flags |= CAM_DEV_DV_HIT_BOTTOM;
|
|
} else if (bootverbose) {
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
|
|
("DV: period 0x%x\n", spi->sync_period));
|
|
printf("setting period to 0x%x\n", spi->sync_period);
|
|
}
|
|
cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
|
|
cts.type = CTS_TYPE_CURRENT_SETTINGS;
|
|
xpt_action((union ccb *)&cts);
|
|
if ((cts.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
|
|
break;
|
|
}
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
|
|
("DV: failed to set period 0x%x\n", spi->sync_period));
|
|
if (spi->sync_period == 0) {
|
|
return (0);
|
|
}
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
probedone(struct cam_periph *periph, union ccb *done_ccb)
|
|
{
|
|
probe_softc *softc;
|
|
struct cam_path *path;
|
|
u_int32_t priority;
|
|
|
|
CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n"));
|
|
|
|
softc = (probe_softc *)periph->softc;
|
|
path = done_ccb->ccb_h.path;
|
|
priority = done_ccb->ccb_h.pinfo.priority;
|
|
|
|
switch (softc->action) {
|
|
case PROBE_TUR:
|
|
{
|
|
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
|
|
if (cam_periph_error(done_ccb, 0,
|
|
SF_NO_PRINT, NULL) == ERESTART)
|
|
return;
|
|
else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
|
|
/* Don't wedge the queue */
|
|
xpt_release_devq(done_ccb->ccb_h.path,
|
|
/*count*/1,
|
|
/*run_queue*/TRUE);
|
|
}
|
|
PROBE_SET_ACTION(softc, PROBE_INQUIRY);
|
|
xpt_release_ccb(done_ccb);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
case PROBE_INQUIRY:
|
|
case PROBE_FULL_INQUIRY:
|
|
{
|
|
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
|
|
struct scsi_inquiry_data *inq_buf;
|
|
u_int8_t periph_qual;
|
|
|
|
path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID;
|
|
inq_buf = &path->device->inq_data;
|
|
|
|
periph_qual = SID_QUAL(inq_buf);
|
|
|
|
switch(periph_qual) {
|
|
case SID_QUAL_LU_CONNECTED:
|
|
{
|
|
u_int8_t len;
|
|
|
|
/*
|
|
* We conservatively request only
|
|
* SHORT_INQUIRY_LEN bytes of inquiry
|
|
* information during our first try
|
|
* at sending an INQUIRY. If the device
|
|
* has more information to give,
|
|
* perform a second request specifying
|
|
* the amount of information the device
|
|
* is willing to give.
|
|
*/
|
|
len = inq_buf->additional_length
|
|
+ offsetof(struct scsi_inquiry_data,
|
|
additional_length) + 1;
|
|
if (softc->action == PROBE_INQUIRY
|
|
&& len > SHORT_INQUIRY_LENGTH) {
|
|
PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY);
|
|
xpt_release_ccb(done_ccb);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
|
|
scsi_find_quirk(path->device);
|
|
|
|
scsi_devise_transport(path);
|
|
if (INQ_DATA_TQ_ENABLED(inq_buf))
|
|
PROBE_SET_ACTION(softc, PROBE_MODE_SENSE);
|
|
else
|
|
PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_0);
|
|
|
|
if (path->device->flags & CAM_DEV_UNCONFIGURED) {
|
|
path->device->flags &= ~CAM_DEV_UNCONFIGURED;
|
|
xpt_acquire_device(path->device);
|
|
}
|
|
xpt_release_ccb(done_ccb);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
} else if (cam_periph_error(done_ccb, 0,
|
|
done_ccb->ccb_h.target_lun > 0
|
|
? SF_RETRY_UA|SF_QUIET_IR
|
|
: SF_RETRY_UA,
|
|
&softc->saved_ccb) == ERESTART) {
|
|
return;
|
|
} else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
/* Don't wedge the queue */
|
|
xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
|
|
/*run_queue*/TRUE);
|
|
}
|
|
/*
|
|
* If we get to this point, we got an error status back
|
|
* from the inquiry and the error status doesn't require
|
|
* automatically retrying the command. Therefore, the
|
|
* inquiry failed. If we had inquiry information before
|
|
* for this device, but this latest inquiry command failed,
|
|
* the device has probably gone away. If this device isn't
|
|
* already marked unconfigured, notify the peripheral
|
|
* drivers that this device is no more.
|
|
*/
|
|
if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
|
|
/* Send the async notification. */
|
|
xpt_async(AC_LOST_DEVICE, path, NULL);
|
|
|
|
xpt_release_ccb(done_ccb);
|
|
break;
|
|
}
|
|
case PROBE_MODE_SENSE:
|
|
{
|
|
struct ccb_scsiio *csio;
|
|
struct scsi_mode_header_6 *mode_hdr;
|
|
|
|
csio = &done_ccb->csio;
|
|
mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr;
|
|
if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
|
|
struct scsi_control_page *page;
|
|
u_int8_t *offset;
|
|
|
|
offset = ((u_int8_t *)&mode_hdr[1])
|
|
+ mode_hdr->blk_desc_len;
|
|
page = (struct scsi_control_page *)offset;
|
|
path->device->queue_flags = page->queue_flags;
|
|
} else if (cam_periph_error(done_ccb, 0,
|
|
SF_RETRY_UA|SF_NO_PRINT,
|
|
&softc->saved_ccb) == ERESTART) {
|
|
return;
|
|
} else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
/* Don't wedge the queue */
|
|
xpt_release_devq(done_ccb->ccb_h.path,
|
|
/*count*/1, /*run_queue*/TRUE);
|
|
}
|
|
xpt_release_ccb(done_ccb);
|
|
free(mode_hdr, M_CAMXPT);
|
|
PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_0);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
case PROBE_SERIAL_NUM_0:
|
|
{
|
|
struct ccb_scsiio *csio;
|
|
struct scsi_vpd_supported_page_list *page_list;
|
|
int length, serialnum_supported, i;
|
|
|
|
serialnum_supported = 0;
|
|
csio = &done_ccb->csio;
|
|
page_list =
|
|
(struct scsi_vpd_supported_page_list *)csio->data_ptr;
|
|
|
|
if (page_list == NULL) {
|
|
/*
|
|
* Don't process the command as it was never sent
|
|
*/
|
|
} else if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP
|
|
&& (page_list->length > 0)) {
|
|
length = min(page_list->length,
|
|
SVPD_SUPPORTED_PAGES_SIZE);
|
|
for (i = 0; i < length; i++) {
|
|
if (page_list->list[i] ==
|
|
SVPD_UNIT_SERIAL_NUMBER) {
|
|
serialnum_supported = 1;
|
|
break;
|
|
}
|
|
}
|
|
} else if (cam_periph_error(done_ccb, 0,
|
|
SF_RETRY_UA|SF_NO_PRINT,
|
|
&softc->saved_ccb) == ERESTART) {
|
|
return;
|
|
} else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
/* Don't wedge the queue */
|
|
xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
|
|
/*run_queue*/TRUE);
|
|
}
|
|
|
|
if (page_list != NULL)
|
|
free(page_list, M_CAMXPT);
|
|
|
|
if (serialnum_supported) {
|
|
xpt_release_ccb(done_ccb);
|
|
PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM_1);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
|
|
csio->data_ptr = NULL;
|
|
/* FALLTHROUGH */
|
|
}
|
|
|
|
case PROBE_SERIAL_NUM_1:
|
|
{
|
|
struct ccb_scsiio *csio;
|
|
struct scsi_vpd_unit_serial_number *serial_buf;
|
|
u_int32_t priority;
|
|
int changed;
|
|
int have_serialnum;
|
|
|
|
changed = 1;
|
|
have_serialnum = 0;
|
|
csio = &done_ccb->csio;
|
|
priority = done_ccb->ccb_h.pinfo.priority;
|
|
serial_buf =
|
|
(struct scsi_vpd_unit_serial_number *)csio->data_ptr;
|
|
|
|
/* Clean up from previous instance of this device */
|
|
if (path->device->serial_num != NULL) {
|
|
free(path->device->serial_num, M_CAMXPT);
|
|
path->device->serial_num = NULL;
|
|
path->device->serial_num_len = 0;
|
|
}
|
|
|
|
if (serial_buf == NULL) {
|
|
/*
|
|
* Don't process the command as it was never sent
|
|
*/
|
|
} else if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP
|
|
&& (serial_buf->length > 0)) {
|
|
|
|
have_serialnum = 1;
|
|
path->device->serial_num =
|
|
(u_int8_t *)malloc((serial_buf->length + 1),
|
|
M_CAMXPT, M_NOWAIT);
|
|
if (path->device->serial_num != NULL) {
|
|
bcopy(serial_buf->serial_num,
|
|
path->device->serial_num,
|
|
serial_buf->length);
|
|
path->device->serial_num_len =
|
|
serial_buf->length;
|
|
path->device->serial_num[serial_buf->length]
|
|
= '\0';
|
|
}
|
|
} else if (cam_periph_error(done_ccb, 0,
|
|
SF_RETRY_UA|SF_NO_PRINT,
|
|
&softc->saved_ccb) == ERESTART) {
|
|
return;
|
|
} else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
/* Don't wedge the queue */
|
|
xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
|
|
/*run_queue*/TRUE);
|
|
}
|
|
|
|
/*
|
|
* Let's see if we have seen this device before.
|
|
*/
|
|
if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) {
|
|
MD5_CTX context;
|
|
u_int8_t digest[16];
|
|
|
|
MD5Init(&context);
|
|
|
|
MD5Update(&context,
|
|
(unsigned char *)&path->device->inq_data,
|
|
sizeof(struct scsi_inquiry_data));
|
|
|
|
if (have_serialnum)
|
|
MD5Update(&context, serial_buf->serial_num,
|
|
serial_buf->length);
|
|
|
|
MD5Final(digest, &context);
|
|
if (bcmp(softc->digest, digest, 16) == 0)
|
|
changed = 0;
|
|
|
|
/*
|
|
* XXX Do we need to do a TUR in order to ensure
|
|
* that the device really hasn't changed???
|
|
*/
|
|
if ((changed != 0)
|
|
&& ((softc->flags & PROBE_NO_ANNOUNCE) == 0))
|
|
xpt_async(AC_LOST_DEVICE, path, NULL);
|
|
}
|
|
if (serial_buf != NULL)
|
|
free(serial_buf, M_CAMXPT);
|
|
|
|
if (changed != 0) {
|
|
/*
|
|
* Now that we have all the necessary
|
|
* information to safely perform transfer
|
|
* negotiations... Controllers don't perform
|
|
* any negotiation or tagged queuing until
|
|
* after the first XPT_SET_TRAN_SETTINGS ccb is
|
|
* received. So, on a new device, just retrieve
|
|
* the user settings, and set them as the current
|
|
* settings to set the device up.
|
|
*/
|
|
proberequestdefaultnegotiation(periph);
|
|
xpt_release_ccb(done_ccb);
|
|
|
|
/*
|
|
* Perform a TUR to allow the controller to
|
|
* perform any necessary transfer negotiation.
|
|
*/
|
|
PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
xpt_release_ccb(done_ccb);
|
|
break;
|
|
}
|
|
case PROBE_TUR_FOR_NEGOTIATION:
|
|
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
DELAY(500000);
|
|
if (cam_periph_error(done_ccb, 0, SF_RETRY_UA,
|
|
NULL) == ERESTART)
|
|
return;
|
|
}
|
|
/* FALLTHROUGH */
|
|
case PROBE_DV_EXIT:
|
|
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
/* Don't wedge the queue */
|
|
xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
|
|
/*run_queue*/TRUE);
|
|
}
|
|
/*
|
|
* Do Domain Validation for lun 0 on devices that claim
|
|
* to support Synchronous Transfer modes.
|
|
*/
|
|
if (softc->action == PROBE_TUR_FOR_NEGOTIATION
|
|
&& done_ccb->ccb_h.target_lun == 0
|
|
&& (path->device->inq_data.flags & SID_Sync) != 0
|
|
&& (path->device->flags & CAM_DEV_IN_DV) == 0) {
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
|
|
("Begin Domain Validation\n"));
|
|
path->device->flags |= CAM_DEV_IN_DV;
|
|
xpt_release_ccb(done_ccb);
|
|
PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
if (softc->action == PROBE_DV_EXIT) {
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
|
|
("Leave Domain Validation\n"));
|
|
}
|
|
if (path->device->flags & CAM_DEV_UNCONFIGURED) {
|
|
path->device->flags &= ~CAM_DEV_UNCONFIGURED;
|
|
xpt_acquire_device(path->device);
|
|
}
|
|
path->device->flags &=
|
|
~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
|
|
if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
|
|
/* Inform the XPT that a new device has been found */
|
|
done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
|
|
xpt_action(done_ccb);
|
|
xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
|
|
done_ccb);
|
|
}
|
|
xpt_release_ccb(done_ccb);
|
|
break;
|
|
case PROBE_INQUIRY_BASIC_DV1:
|
|
case PROBE_INQUIRY_BASIC_DV2:
|
|
{
|
|
struct scsi_inquiry_data *nbuf;
|
|
struct ccb_scsiio *csio;
|
|
|
|
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
/* Don't wedge the queue */
|
|
xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
|
|
/*run_queue*/TRUE);
|
|
}
|
|
csio = &done_ccb->csio;
|
|
nbuf = (struct scsi_inquiry_data *)csio->data_ptr;
|
|
if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) {
|
|
xpt_print(path,
|
|
"inquiry data fails comparison at DV%d step\n",
|
|
softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2);
|
|
if (proberequestbackoff(periph, path->device)) {
|
|
path->device->flags &= ~CAM_DEV_IN_DV;
|
|
PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
|
|
} else {
|
|
/* give up */
|
|
PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
|
|
}
|
|
free(nbuf, M_CAMXPT);
|
|
xpt_release_ccb(done_ccb);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
free(nbuf, M_CAMXPT);
|
|
if (softc->action == PROBE_INQUIRY_BASIC_DV1) {
|
|
PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2);
|
|
xpt_release_ccb(done_ccb);
|
|
xpt_schedule(periph, priority);
|
|
return;
|
|
}
|
|
if (softc->action == PROBE_INQUIRY_BASIC_DV2) {
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
|
|
("Leave Domain Validation Successfully\n"));
|
|
}
|
|
if (path->device->flags & CAM_DEV_UNCONFIGURED) {
|
|
path->device->flags &= ~CAM_DEV_UNCONFIGURED;
|
|
xpt_acquire_device(path->device);
|
|
}
|
|
path->device->flags &=
|
|
~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
|
|
if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
|
|
/* Inform the XPT that a new device has been found */
|
|
done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
|
|
xpt_action(done_ccb);
|
|
xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
|
|
done_ccb);
|
|
}
|
|
xpt_release_ccb(done_ccb);
|
|
break;
|
|
}
|
|
case PROBE_INVALID:
|
|
CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_INFO,
|
|
("probedone: invalid action state\n"));
|
|
default:
|
|
break;
|
|
}
|
|
done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
|
|
TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe);
|
|
done_ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(done_ccb);
|
|
if (TAILQ_FIRST(&softc->request_ccbs) == NULL) {
|
|
cam_release_devq(periph->path,
|
|
RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_XPT + 1, FALSE);
|
|
cam_periph_invalidate(periph);
|
|
cam_periph_release_locked(periph);
|
|
} else {
|
|
probeschedule(periph);
|
|
}
|
|
}
|
|
|
|
static void
|
|
probecleanup(struct cam_periph *periph)
|
|
{
|
|
free(periph->softc, M_CAMXPT);
|
|
}
|
|
|
|
static void
|
|
scsi_find_quirk(struct cam_ed *device)
|
|
{
|
|
struct scsi_quirk_entry *quirk;
|
|
caddr_t match;
|
|
|
|
match = cam_quirkmatch((caddr_t)&device->inq_data,
|
|
(caddr_t)scsi_quirk_table,
|
|
sizeof(scsi_quirk_table) /
|
|
sizeof(*scsi_quirk_table),
|
|
sizeof(*scsi_quirk_table), scsi_inquiry_match);
|
|
|
|
if (match == NULL)
|
|
panic("xpt_find_quirk: device didn't match wildcard entry!!");
|
|
|
|
quirk = (struct scsi_quirk_entry *)match;
|
|
device->quirk = quirk;
|
|
device->mintags = quirk->mintags;
|
|
device->maxtags = quirk->maxtags;
|
|
}
|
|
|
|
static int
|
|
sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
int error, bool;
|
|
|
|
bool = cam_srch_hi;
|
|
error = sysctl_handle_int(oidp, &bool, 0, req);
|
|
if (error != 0 || req->newptr == NULL)
|
|
return (error);
|
|
if (bool == 0 || bool == 1) {
|
|
cam_srch_hi = bool;
|
|
return (0);
|
|
} else {
|
|
return (EINVAL);
|
|
}
|
|
}
|
|
|
|
typedef struct {
|
|
union ccb *request_ccb;
|
|
struct ccb_pathinq *cpi;
|
|
int counter;
|
|
} scsi_scan_bus_info;
|
|
|
|
/*
|
|
* To start a scan, request_ccb is an XPT_SCAN_BUS ccb.
|
|
* As the scan progresses, scsi_scan_bus is used as the
|
|
* callback on completion function.
|
|
*/
|
|
static void
|
|
scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb)
|
|
{
|
|
CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
|
|
("scsi_scan_bus\n"));
|
|
switch (request_ccb->ccb_h.func_code) {
|
|
case XPT_SCAN_BUS:
|
|
case XPT_SCAN_TGT:
|
|
{
|
|
scsi_scan_bus_info *scan_info;
|
|
union ccb *work_ccb, *reset_ccb;
|
|
struct cam_path *path;
|
|
u_int i;
|
|
u_int low_target, max_target;
|
|
u_int initiator_id;
|
|
|
|
/* Find out the characteristics of the bus */
|
|
work_ccb = xpt_alloc_ccb_nowait();
|
|
if (work_ccb == NULL) {
|
|
request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
|
|
xpt_done(request_ccb);
|
|
return;
|
|
}
|
|
xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path,
|
|
request_ccb->ccb_h.pinfo.priority);
|
|
work_ccb->ccb_h.func_code = XPT_PATH_INQ;
|
|
xpt_action(work_ccb);
|
|
if (work_ccb->ccb_h.status != CAM_REQ_CMP) {
|
|
request_ccb->ccb_h.status = work_ccb->ccb_h.status;
|
|
xpt_free_ccb(work_ccb);
|
|
xpt_done(request_ccb);
|
|
return;
|
|
}
|
|
|
|
if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) {
|
|
/*
|
|
* Can't scan the bus on an adapter that
|
|
* cannot perform the initiator role.
|
|
*/
|
|
request_ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_free_ccb(work_ccb);
|
|
xpt_done(request_ccb);
|
|
return;
|
|
}
|
|
|
|
/* We may need to reset bus first, if we haven't done it yet. */
|
|
if ((work_ccb->cpi.hba_inquiry &
|
|
(PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) &&
|
|
!(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) &&
|
|
!timevalisset(&request_ccb->ccb_h.path->bus->last_reset)) {
|
|
reset_ccb = xpt_alloc_ccb_nowait();
|
|
xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path,
|
|
CAM_PRIORITY_NONE);
|
|
reset_ccb->ccb_h.func_code = XPT_RESET_BUS;
|
|
xpt_action(reset_ccb);
|
|
if (reset_ccb->ccb_h.status != CAM_REQ_CMP) {
|
|
request_ccb->ccb_h.status = reset_ccb->ccb_h.status;
|
|
xpt_free_ccb(reset_ccb);
|
|
xpt_free_ccb(work_ccb);
|
|
xpt_done(request_ccb);
|
|
return;
|
|
}
|
|
xpt_free_ccb(reset_ccb);
|
|
}
|
|
|
|
/* Save some state for use while we probe for devices */
|
|
scan_info = (scsi_scan_bus_info *)
|
|
malloc(sizeof(scsi_scan_bus_info), M_CAMXPT, M_NOWAIT);
|
|
if (scan_info == NULL) {
|
|
request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
|
|
xpt_done(request_ccb);
|
|
return;
|
|
}
|
|
scan_info->request_ccb = request_ccb;
|
|
scan_info->cpi = &work_ccb->cpi;
|
|
|
|
/* Cache on our stack so we can work asynchronously */
|
|
max_target = scan_info->cpi->max_target;
|
|
low_target = 0;
|
|
initiator_id = scan_info->cpi->initiator_id;
|
|
|
|
|
|
/*
|
|
* We can scan all targets in parallel, or do it sequentially.
|
|
*/
|
|
|
|
if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) {
|
|
max_target = low_target = request_ccb->ccb_h.target_id;
|
|
scan_info->counter = 0;
|
|
} else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) {
|
|
max_target = 0;
|
|
scan_info->counter = 0;
|
|
} else {
|
|
scan_info->counter = scan_info->cpi->max_target + 1;
|
|
if (scan_info->cpi->initiator_id < scan_info->counter) {
|
|
scan_info->counter--;
|
|
}
|
|
}
|
|
|
|
for (i = low_target; i <= max_target; i++) {
|
|
cam_status status;
|
|
if (i == initiator_id)
|
|
continue;
|
|
|
|
status = xpt_create_path(&path, xpt_periph,
|
|
request_ccb->ccb_h.path_id,
|
|
i, 0);
|
|
if (status != CAM_REQ_CMP) {
|
|
printf("scsi_scan_bus: xpt_create_path failed"
|
|
" with status %#x, bus scan halted\n",
|
|
status);
|
|
free(scan_info, M_CAMXPT);
|
|
request_ccb->ccb_h.status = status;
|
|
xpt_free_ccb(work_ccb);
|
|
xpt_done(request_ccb);
|
|
break;
|
|
}
|
|
work_ccb = xpt_alloc_ccb_nowait();
|
|
if (work_ccb == NULL) {
|
|
xpt_free_ccb((union ccb *)scan_info->cpi);
|
|
free(scan_info, M_CAMXPT);
|
|
xpt_free_path(path);
|
|
request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
|
|
xpt_done(request_ccb);
|
|
break;
|
|
}
|
|
xpt_setup_ccb(&work_ccb->ccb_h, path,
|
|
request_ccb->ccb_h.pinfo.priority);
|
|
work_ccb->ccb_h.func_code = XPT_SCAN_LUN;
|
|
work_ccb->ccb_h.cbfcnp = scsi_scan_bus;
|
|
work_ccb->ccb_h.ppriv_ptr0 = scan_info;
|
|
work_ccb->crcn.flags = request_ccb->crcn.flags;
|
|
xpt_action(work_ccb);
|
|
}
|
|
break;
|
|
}
|
|
case XPT_SCAN_LUN:
|
|
{
|
|
cam_status status;
|
|
struct cam_path *path;
|
|
scsi_scan_bus_info *scan_info;
|
|
path_id_t path_id;
|
|
target_id_t target_id;
|
|
lun_id_t lun_id;
|
|
|
|
/* Reuse the same CCB to query if a device was really found */
|
|
scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0;
|
|
xpt_setup_ccb(&request_ccb->ccb_h, request_ccb->ccb_h.path,
|
|
request_ccb->ccb_h.pinfo.priority);
|
|
request_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
|
|
|
|
path_id = request_ccb->ccb_h.path_id;
|
|
target_id = request_ccb->ccb_h.target_id;
|
|
lun_id = request_ccb->ccb_h.target_lun;
|
|
xpt_action(request_ccb);
|
|
|
|
if (request_ccb->ccb_h.status != CAM_REQ_CMP) {
|
|
struct cam_ed *device;
|
|
struct cam_et *target;
|
|
int phl;
|
|
|
|
/*
|
|
* If we already probed lun 0 successfully, or
|
|
* we have additional configured luns on this
|
|
* target that might have "gone away", go onto
|
|
* the next lun.
|
|
*/
|
|
target = request_ccb->ccb_h.path->target;
|
|
/*
|
|
* We may touch devices that we don't
|
|
* hold references too, so ensure they
|
|
* don't disappear out from under us.
|
|
* The target above is referenced by the
|
|
* path in the request ccb.
|
|
*/
|
|
phl = 0;
|
|
device = TAILQ_FIRST(&target->ed_entries);
|
|
if (device != NULL) {
|
|
phl = CAN_SRCH_HI_SPARSE(device);
|
|
if (device->lun_id == 0)
|
|
device = TAILQ_NEXT(device, links);
|
|
}
|
|
if ((lun_id != 0) || (device != NULL)) {
|
|
if (lun_id < (CAM_SCSI2_MAXLUN-1) || phl)
|
|
lun_id++;
|
|
}
|
|
} else {
|
|
struct cam_ed *device;
|
|
|
|
device = request_ccb->ccb_h.path->device;
|
|
|
|
if ((SCSI_QUIRK(device)->quirks &
|
|
CAM_QUIRK_NOLUNS) == 0) {
|
|
/* Try the next lun */
|
|
if (lun_id < (CAM_SCSI2_MAXLUN-1)
|
|
|| CAN_SRCH_HI_DENSE(device))
|
|
lun_id++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Free the current request path- we're done with it.
|
|
*/
|
|
xpt_free_path(request_ccb->ccb_h.path);
|
|
|
|
/*
|
|
* Check to see if we scan any further luns.
|
|
*/
|
|
if (lun_id == request_ccb->ccb_h.target_lun
|
|
|| lun_id > scan_info->cpi->max_lun) {
|
|
int done;
|
|
|
|
hop_again:
|
|
done = 0;
|
|
if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) {
|
|
done = 1;
|
|
} else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) {
|
|
scan_info->counter++;
|
|
if (scan_info->counter ==
|
|
scan_info->cpi->initiator_id) {
|
|
scan_info->counter++;
|
|
}
|
|
if (scan_info->counter >=
|
|
scan_info->cpi->max_target+1) {
|
|
done = 1;
|
|
}
|
|
} else {
|
|
scan_info->counter--;
|
|
if (scan_info->counter == 0) {
|
|
done = 1;
|
|
}
|
|
}
|
|
if (done) {
|
|
xpt_free_ccb(request_ccb);
|
|
xpt_free_ccb((union ccb *)scan_info->cpi);
|
|
request_ccb = scan_info->request_ccb;
|
|
free(scan_info, M_CAMXPT);
|
|
request_ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(request_ccb);
|
|
break;
|
|
}
|
|
|
|
if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) {
|
|
xpt_free_ccb(request_ccb);
|
|
break;
|
|
}
|
|
status = xpt_create_path(&path, xpt_periph,
|
|
scan_info->request_ccb->ccb_h.path_id,
|
|
scan_info->counter, 0);
|
|
if (status != CAM_REQ_CMP) {
|
|
printf("scsi_scan_bus: xpt_create_path failed"
|
|
" with status %#x, bus scan halted\n",
|
|
status);
|
|
xpt_free_ccb(request_ccb);
|
|
xpt_free_ccb((union ccb *)scan_info->cpi);
|
|
request_ccb = scan_info->request_ccb;
|
|
free(scan_info, M_CAMXPT);
|
|
request_ccb->ccb_h.status = status;
|
|
xpt_done(request_ccb);
|
|
break;
|
|
}
|
|
xpt_setup_ccb(&request_ccb->ccb_h, path,
|
|
request_ccb->ccb_h.pinfo.priority);
|
|
request_ccb->ccb_h.func_code = XPT_SCAN_LUN;
|
|
request_ccb->ccb_h.cbfcnp = scsi_scan_bus;
|
|
request_ccb->ccb_h.ppriv_ptr0 = scan_info;
|
|
request_ccb->crcn.flags =
|
|
scan_info->request_ccb->crcn.flags;
|
|
} else {
|
|
status = xpt_create_path(&path, xpt_periph,
|
|
path_id, target_id, lun_id);
|
|
if (status != CAM_REQ_CMP) {
|
|
printf("scsi_scan_bus: xpt_create_path failed "
|
|
"with status %#x, halting LUN scan\n",
|
|
status);
|
|
goto hop_again;
|
|
}
|
|
xpt_setup_ccb(&request_ccb->ccb_h, path,
|
|
request_ccb->ccb_h.pinfo.priority);
|
|
request_ccb->ccb_h.func_code = XPT_SCAN_LUN;
|
|
request_ccb->ccb_h.cbfcnp = scsi_scan_bus;
|
|
request_ccb->ccb_h.ppriv_ptr0 = scan_info;
|
|
request_ccb->crcn.flags =
|
|
scan_info->request_ccb->crcn.flags;
|
|
}
|
|
xpt_action(request_ccb);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
scsi_scan_lun(struct cam_periph *periph, struct cam_path *path,
|
|
cam_flags flags, union ccb *request_ccb)
|
|
{
|
|
struct ccb_pathinq cpi;
|
|
cam_status status;
|
|
struct cam_path *new_path;
|
|
struct cam_periph *old_periph;
|
|
|
|
CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n"));
|
|
|
|
xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE);
|
|
cpi.ccb_h.func_code = XPT_PATH_INQ;
|
|
xpt_action((union ccb *)&cpi);
|
|
|
|
if (cpi.ccb_h.status != CAM_REQ_CMP) {
|
|
if (request_ccb != NULL) {
|
|
request_ccb->ccb_h.status = cpi.ccb_h.status;
|
|
xpt_done(request_ccb);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) {
|
|
/*
|
|
* Can't scan the bus on an adapter that
|
|
* cannot perform the initiator role.
|
|
*/
|
|
if (request_ccb != NULL) {
|
|
request_ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(request_ccb);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (request_ccb == NULL) {
|
|
request_ccb = malloc(sizeof(union ccb), M_CAMXPT, M_NOWAIT);
|
|
if (request_ccb == NULL) {
|
|
xpt_print(path, "scsi_scan_lun: can't allocate CCB, "
|
|
"can't continue\n");
|
|
return;
|
|
}
|
|
new_path = malloc(sizeof(*new_path), M_CAMXPT, M_NOWAIT);
|
|
if (new_path == NULL) {
|
|
xpt_print(path, "scsi_scan_lun: can't allocate path, "
|
|
"can't continue\n");
|
|
free(request_ccb, M_CAMXPT);
|
|
return;
|
|
}
|
|
status = xpt_compile_path(new_path, xpt_periph,
|
|
path->bus->path_id,
|
|
path->target->target_id,
|
|
path->device->lun_id);
|
|
|
|
if (status != CAM_REQ_CMP) {
|
|
xpt_print(path, "scsi_scan_lun: can't compile path, "
|
|
"can't continue\n");
|
|
free(request_ccb, M_CAMXPT);
|
|
free(new_path, M_CAMXPT);
|
|
return;
|
|
}
|
|
xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT);
|
|
request_ccb->ccb_h.cbfcnp = xptscandone;
|
|
request_ccb->ccb_h.func_code = XPT_SCAN_LUN;
|
|
request_ccb->crcn.flags = flags;
|
|
}
|
|
|
|
if ((old_periph = cam_periph_find(path, "probe")) != NULL) {
|
|
probe_softc *softc;
|
|
|
|
softc = (probe_softc *)old_periph->softc;
|
|
TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h,
|
|
periph_links.tqe);
|
|
} else {
|
|
status = cam_periph_alloc(proberegister, NULL, probecleanup,
|
|
probestart, "probe",
|
|
CAM_PERIPH_BIO,
|
|
request_ccb->ccb_h.path, NULL, 0,
|
|
request_ccb);
|
|
|
|
if (status != CAM_REQ_CMP) {
|
|
xpt_print(path, "scsi_scan_lun: cam_alloc_periph "
|
|
"returned an error, can't continue probe\n");
|
|
request_ccb->ccb_h.status = status;
|
|
xpt_done(request_ccb);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
xptscandone(struct cam_periph *periph, union ccb *done_ccb)
|
|
{
|
|
xpt_release_path(done_ccb->ccb_h.path);
|
|
free(done_ccb->ccb_h.path, M_CAMXPT);
|
|
free(done_ccb, M_CAMXPT);
|
|
}
|
|
|
|
static struct cam_ed *
|
|
scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id)
|
|
{
|
|
struct cam_path path;
|
|
struct scsi_quirk_entry *quirk;
|
|
struct cam_ed *device;
|
|
struct cam_ed *cur_device;
|
|
|
|
device = xpt_alloc_device(bus, target, lun_id);
|
|
if (device == NULL)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Take the default quirk entry until we have inquiry
|
|
* data and can determine a better quirk to use.
|
|
*/
|
|
quirk = &scsi_quirk_table[scsi_quirk_table_size - 1];
|
|
device->quirk = (void *)quirk;
|
|
device->mintags = quirk->mintags;
|
|
device->maxtags = quirk->maxtags;
|
|
bzero(&device->inq_data, sizeof(device->inq_data));
|
|
device->inq_flags = 0;
|
|
device->queue_flags = 0;
|
|
device->serial_num = NULL;
|
|
device->serial_num_len = 0;
|
|
|
|
/*
|
|
* XXX should be limited by number of CCBs this bus can
|
|
* do.
|
|
*/
|
|
bus->sim->max_ccbs += device->ccbq.devq_openings;
|
|
/* Insertion sort into our target's device list */
|
|
cur_device = TAILQ_FIRST(&target->ed_entries);
|
|
while (cur_device != NULL && cur_device->lun_id < lun_id)
|
|
cur_device = TAILQ_NEXT(cur_device, links);
|
|
if (cur_device != NULL) {
|
|
TAILQ_INSERT_BEFORE(cur_device, device, links);
|
|
} else {
|
|
TAILQ_INSERT_TAIL(&target->ed_entries, device, links);
|
|
}
|
|
target->generation++;
|
|
if (lun_id != CAM_LUN_WILDCARD) {
|
|
xpt_compile_path(&path,
|
|
NULL,
|
|
bus->path_id,
|
|
target->target_id,
|
|
lun_id);
|
|
scsi_devise_transport(&path);
|
|
xpt_release_path(&path);
|
|
}
|
|
|
|
return (device);
|
|
}
|
|
|
|
static void
|
|
scsi_devise_transport(struct cam_path *path)
|
|
{
|
|
struct ccb_pathinq cpi;
|
|
struct ccb_trans_settings cts;
|
|
struct scsi_inquiry_data *inq_buf;
|
|
|
|
/* Get transport information from the SIM */
|
|
xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE);
|
|
cpi.ccb_h.func_code = XPT_PATH_INQ;
|
|
xpt_action((union ccb *)&cpi);
|
|
|
|
inq_buf = NULL;
|
|
if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0)
|
|
inq_buf = &path->device->inq_data;
|
|
path->device->protocol = PROTO_SCSI;
|
|
path->device->protocol_version =
|
|
inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version;
|
|
path->device->transport = cpi.transport;
|
|
path->device->transport_version = cpi.transport_version;
|
|
|
|
/*
|
|
* Any device not using SPI3 features should
|
|
* be considered SPI2 or lower.
|
|
*/
|
|
if (inq_buf != NULL) {
|
|
if (path->device->transport == XPORT_SPI
|
|
&& (inq_buf->spi3data & SID_SPI_MASK) == 0
|
|
&& path->device->transport_version > 2)
|
|
path->device->transport_version = 2;
|
|
} else {
|
|
struct cam_ed* otherdev;
|
|
|
|
for (otherdev = TAILQ_FIRST(&path->target->ed_entries);
|
|
otherdev != NULL;
|
|
otherdev = TAILQ_NEXT(otherdev, links)) {
|
|
if (otherdev != path->device)
|
|
break;
|
|
}
|
|
|
|
if (otherdev != NULL) {
|
|
/*
|
|
* Initially assume the same versioning as
|
|
* prior luns for this target.
|
|
*/
|
|
path->device->protocol_version =
|
|
otherdev->protocol_version;
|
|
path->device->transport_version =
|
|
otherdev->transport_version;
|
|
} else {
|
|
/* Until we know better, opt for safty */
|
|
path->device->protocol_version = 2;
|
|
if (path->device->transport == XPORT_SPI)
|
|
path->device->transport_version = 2;
|
|
else
|
|
path->device->transport_version = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* XXX
|
|
* For a device compliant with SPC-2 we should be able
|
|
* to determine the transport version supported by
|
|
* scrutinizing the version descriptors in the
|
|
* inquiry buffer.
|
|
*/
|
|
|
|
/* Tell the controller what we think */
|
|
xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
|
|
cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
|
|
cts.type = CTS_TYPE_CURRENT_SETTINGS;
|
|
cts.transport = path->device->transport;
|
|
cts.transport_version = path->device->transport_version;
|
|
cts.protocol = path->device->protocol;
|
|
cts.protocol_version = path->device->protocol_version;
|
|
cts.proto_specific.valid = 0;
|
|
cts.xport_specific.valid = 0;
|
|
xpt_action((union ccb *)&cts);
|
|
}
|
|
|
|
static void
|
|
scsi_action(union ccb *start_ccb)
|
|
{
|
|
|
|
switch (start_ccb->ccb_h.func_code) {
|
|
case XPT_SET_TRAN_SETTINGS:
|
|
{
|
|
scsi_set_transfer_settings(&start_ccb->cts,
|
|
start_ccb->ccb_h.path->device,
|
|
/*async_update*/FALSE);
|
|
break;
|
|
}
|
|
case XPT_SCAN_BUS:
|
|
case XPT_SCAN_TGT:
|
|
scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb);
|
|
break;
|
|
case XPT_SCAN_LUN:
|
|
scsi_scan_lun(start_ccb->ccb_h.path->periph,
|
|
start_ccb->ccb_h.path, start_ccb->crcn.flags,
|
|
start_ccb);
|
|
break;
|
|
case XPT_GET_TRAN_SETTINGS:
|
|
{
|
|
struct cam_sim *sim;
|
|
|
|
sim = start_ccb->ccb_h.path->bus->sim;
|
|
(*(sim->sim_action))(sim, start_ccb);
|
|
break;
|
|
}
|
|
default:
|
|
xpt_action_default(start_ccb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_ed *device,
|
|
int async_update)
|
|
{
|
|
struct ccb_pathinq cpi;
|
|
struct ccb_trans_settings cur_cts;
|
|
struct ccb_trans_settings_scsi *scsi;
|
|
struct ccb_trans_settings_scsi *cur_scsi;
|
|
struct cam_sim *sim;
|
|
struct scsi_inquiry_data *inq_data;
|
|
|
|
if (device == NULL) {
|
|
cts->ccb_h.status = CAM_PATH_INVALID;
|
|
xpt_done((union ccb *)cts);
|
|
return;
|
|
}
|
|
|
|
if (cts->protocol == PROTO_UNKNOWN
|
|
|| cts->protocol == PROTO_UNSPECIFIED) {
|
|
cts->protocol = device->protocol;
|
|
cts->protocol_version = device->protocol_version;
|
|
}
|
|
|
|
if (cts->protocol_version == PROTO_VERSION_UNKNOWN
|
|
|| cts->protocol_version == PROTO_VERSION_UNSPECIFIED)
|
|
cts->protocol_version = device->protocol_version;
|
|
|
|
if (cts->protocol != device->protocol) {
|
|
xpt_print(cts->ccb_h.path, "Uninitialized Protocol %x:%x?\n",
|
|
cts->protocol, device->protocol);
|
|
cts->protocol = device->protocol;
|
|
}
|
|
|
|
if (cts->protocol_version > device->protocol_version) {
|
|
if (bootverbose) {
|
|
xpt_print(cts->ccb_h.path, "Down reving Protocol "
|
|
"Version from %d to %d?\n", cts->protocol_version,
|
|
device->protocol_version);
|
|
}
|
|
cts->protocol_version = device->protocol_version;
|
|
}
|
|
|
|
if (cts->transport == XPORT_UNKNOWN
|
|
|| cts->transport == XPORT_UNSPECIFIED) {
|
|
cts->transport = device->transport;
|
|
cts->transport_version = device->transport_version;
|
|
}
|
|
|
|
if (cts->transport_version == XPORT_VERSION_UNKNOWN
|
|
|| cts->transport_version == XPORT_VERSION_UNSPECIFIED)
|
|
cts->transport_version = device->transport_version;
|
|
|
|
if (cts->transport != device->transport) {
|
|
xpt_print(cts->ccb_h.path, "Uninitialized Transport %x:%x?\n",
|
|
cts->transport, device->transport);
|
|
cts->transport = device->transport;
|
|
}
|
|
|
|
if (cts->transport_version > device->transport_version) {
|
|
if (bootverbose) {
|
|
xpt_print(cts->ccb_h.path, "Down reving Transport "
|
|
"Version from %d to %d?\n", cts->transport_version,
|
|
device->transport_version);
|
|
}
|
|
cts->transport_version = device->transport_version;
|
|
}
|
|
|
|
sim = cts->ccb_h.path->bus->sim;
|
|
|
|
/*
|
|
* Nothing more of interest to do unless
|
|
* this is a device connected via the
|
|
* SCSI protocol.
|
|
*/
|
|
if (cts->protocol != PROTO_SCSI) {
|
|
if (async_update == FALSE)
|
|
(*(sim->sim_action))(sim, (union ccb *)cts);
|
|
return;
|
|
}
|
|
|
|
inq_data = &device->inq_data;
|
|
scsi = &cts->proto_specific.scsi;
|
|
xpt_setup_ccb(&cpi.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE);
|
|
cpi.ccb_h.func_code = XPT_PATH_INQ;
|
|
xpt_action((union ccb *)&cpi);
|
|
|
|
/* SCSI specific sanity checking */
|
|
if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0
|
|
|| (INQ_DATA_TQ_ENABLED(inq_data)) == 0
|
|
|| (device->queue_flags & SCP_QUEUE_DQUE) != 0
|
|
|| (device->mintags == 0)) {
|
|
/*
|
|
* Can't tag on hardware that doesn't support tags,
|
|
* doesn't have it enabled, or has broken tag support.
|
|
*/
|
|
scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
|
|
}
|
|
|
|
if (async_update == FALSE) {
|
|
/*
|
|
* Perform sanity checking against what the
|
|
* controller and device can do.
|
|
*/
|
|
xpt_setup_ccb(&cur_cts.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE);
|
|
cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
|
|
cur_cts.type = cts->type;
|
|
xpt_action((union ccb *)&cur_cts);
|
|
if ((cur_cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
return;
|
|
}
|
|
cur_scsi = &cur_cts.proto_specific.scsi;
|
|
if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) {
|
|
scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
|
|
scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB;
|
|
}
|
|
if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0)
|
|
scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
|
|
}
|
|
|
|
/* SPI specific sanity checking */
|
|
if (cts->transport == XPORT_SPI && async_update == FALSE) {
|
|
u_int spi3caps;
|
|
struct ccb_trans_settings_spi *spi;
|
|
struct ccb_trans_settings_spi *cur_spi;
|
|
|
|
spi = &cts->xport_specific.spi;
|
|
|
|
cur_spi = &cur_cts.xport_specific.spi;
|
|
|
|
/* Fill in any gaps in what the user gave us */
|
|
if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0)
|
|
spi->sync_period = cur_spi->sync_period;
|
|
if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0)
|
|
spi->sync_period = 0;
|
|
if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0)
|
|
spi->sync_offset = cur_spi->sync_offset;
|
|
if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0)
|
|
spi->sync_offset = 0;
|
|
if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0)
|
|
spi->ppr_options = cur_spi->ppr_options;
|
|
if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0)
|
|
spi->ppr_options = 0;
|
|
if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0)
|
|
spi->bus_width = cur_spi->bus_width;
|
|
if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0)
|
|
spi->bus_width = 0;
|
|
if ((spi->valid & CTS_SPI_VALID_DISC) == 0) {
|
|
spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
|
|
spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB;
|
|
}
|
|
if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0)
|
|
spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
|
|
if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0
|
|
&& (inq_data->flags & SID_Sync) == 0
|
|
&& cts->type == CTS_TYPE_CURRENT_SETTINGS)
|
|
|| ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) {
|
|
/* Force async */
|
|
spi->sync_period = 0;
|
|
spi->sync_offset = 0;
|
|
}
|
|
|
|
switch (spi->bus_width) {
|
|
case MSG_EXT_WDTR_BUS_32_BIT:
|
|
if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0
|
|
|| (inq_data->flags & SID_WBus32) != 0
|
|
|| cts->type == CTS_TYPE_USER_SETTINGS)
|
|
&& (cpi.hba_inquiry & PI_WIDE_32) != 0)
|
|
break;
|
|
/* Fall Through to 16-bit */
|
|
case MSG_EXT_WDTR_BUS_16_BIT:
|
|
if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0
|
|
|| (inq_data->flags & SID_WBus16) != 0
|
|
|| cts->type == CTS_TYPE_USER_SETTINGS)
|
|
&& (cpi.hba_inquiry & PI_WIDE_16) != 0) {
|
|
spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
|
|
break;
|
|
}
|
|
/* Fall Through to 8-bit */
|
|
default: /* New bus width?? */
|
|
case MSG_EXT_WDTR_BUS_8_BIT:
|
|
/* All targets can do this */
|
|
spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
|
|
break;
|
|
}
|
|
|
|
spi3caps = cpi.xport_specific.spi.ppr_options;
|
|
if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0
|
|
&& cts->type == CTS_TYPE_CURRENT_SETTINGS)
|
|
spi3caps &= inq_data->spi3data;
|
|
|
|
if ((spi3caps & SID_SPI_CLOCK_DT) == 0)
|
|
spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
|
|
|
|
if ((spi3caps & SID_SPI_IUS) == 0)
|
|
spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
|
|
|
|
if ((spi3caps & SID_SPI_QAS) == 0)
|
|
spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ;
|
|
|
|
/* No SPI Transfer settings are allowed unless we are wide */
|
|
if (spi->bus_width == 0)
|
|
spi->ppr_options = 0;
|
|
|
|
if ((spi->valid & CTS_SPI_VALID_DISC)
|
|
&& ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) {
|
|
/*
|
|
* Can't tag queue without disconnection.
|
|
*/
|
|
scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
|
|
scsi->valid |= CTS_SCSI_VALID_TQ;
|
|
}
|
|
|
|
/*
|
|
* If we are currently performing tagged transactions to
|
|
* this device and want to change its negotiation parameters,
|
|
* go non-tagged for a bit to give the controller a chance to
|
|
* negotiate unhampered by tag messages.
|
|
*/
|
|
if (cts->type == CTS_TYPE_CURRENT_SETTINGS
|
|
&& (device->inq_flags & SID_CmdQue) != 0
|
|
&& (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0
|
|
&& (spi->flags & (CTS_SPI_VALID_SYNC_RATE|
|
|
CTS_SPI_VALID_SYNC_OFFSET|
|
|
CTS_SPI_VALID_BUS_WIDTH)) != 0)
|
|
scsi_toggle_tags(cts->ccb_h.path);
|
|
}
|
|
|
|
if (cts->type == CTS_TYPE_CURRENT_SETTINGS
|
|
&& (scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
|
|
int device_tagenb;
|
|
|
|
/*
|
|
* If we are transitioning from tags to no-tags or
|
|
* vice-versa, we need to carefully freeze and restart
|
|
* the queue so that we don't overlap tagged and non-tagged
|
|
* commands. We also temporarily stop tags if there is
|
|
* a change in transfer negotiation settings to allow
|
|
* "tag-less" negotiation.
|
|
*/
|
|
if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0
|
|
|| (device->inq_flags & SID_CmdQue) != 0)
|
|
device_tagenb = TRUE;
|
|
else
|
|
device_tagenb = FALSE;
|
|
|
|
if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0
|
|
&& device_tagenb == FALSE)
|
|
|| ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0
|
|
&& device_tagenb == TRUE)) {
|
|
|
|
if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) {
|
|
/*
|
|
* Delay change to use tags until after a
|
|
* few commands have gone to this device so
|
|
* the controller has time to perform transfer
|
|
* negotiations without tagged messages getting
|
|
* in the way.
|
|
*/
|
|
device->tag_delay_count = CAM_TAG_DELAY_COUNT;
|
|
device->flags |= CAM_DEV_TAG_AFTER_COUNT;
|
|
} else {
|
|
xpt_stop_tags(cts->ccb_h.path);
|
|
}
|
|
}
|
|
}
|
|
if (async_update == FALSE)
|
|
(*(sim->sim_action))(sim, (union ccb *)cts);
|
|
}
|
|
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static void
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scsi_toggle_tags(struct cam_path *path)
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{
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struct cam_ed *dev;
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/*
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* Give controllers a chance to renegotiate
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* before starting tag operations. We
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* "toggle" tagged queuing off then on
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* which causes the tag enable command delay
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* counter to come into effect.
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*/
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dev = path->device;
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if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0
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|| ((dev->inq_flags & SID_CmdQue) != 0
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&& (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) {
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struct ccb_trans_settings cts;
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xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
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cts.protocol = PROTO_SCSI;
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cts.protocol_version = PROTO_VERSION_UNSPECIFIED;
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cts.transport = XPORT_UNSPECIFIED;
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cts.transport_version = XPORT_VERSION_UNSPECIFIED;
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cts.proto_specific.scsi.flags = 0;
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cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
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scsi_set_transfer_settings(&cts, path->device,
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/*async_update*/TRUE);
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cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
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scsi_set_transfer_settings(&cts, path->device,
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/*async_update*/TRUE);
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}
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}
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/*
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* Handle any per-device event notifications that require action by the XPT.
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*/
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static void
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scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target,
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struct cam_ed *device, void *async_arg)
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{
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cam_status status;
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struct cam_path newpath;
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/*
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* We only need to handle events for real devices.
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*/
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if (target->target_id == CAM_TARGET_WILDCARD
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|| device->lun_id == CAM_LUN_WILDCARD)
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return;
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/*
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* We need our own path with wildcards expanded to
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* handle certain types of events.
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*/
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if ((async_code == AC_SENT_BDR)
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|| (async_code == AC_BUS_RESET)
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|| (async_code == AC_INQ_CHANGED))
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status = xpt_compile_path(&newpath, NULL,
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bus->path_id,
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target->target_id,
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device->lun_id);
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else
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status = CAM_REQ_CMP_ERR;
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if (status == CAM_REQ_CMP) {
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/*
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* Allow transfer negotiation to occur in a
|
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* tag free environment and after settle delay.
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*/
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if (async_code == AC_SENT_BDR
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|| async_code == AC_BUS_RESET) {
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cam_freeze_devq(&newpath);
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cam_release_devq(&newpath,
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RELSIM_RELEASE_AFTER_TIMEOUT,
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/*reduction*/0,
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/*timeout*/scsi_delay,
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/*getcount_only*/0);
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scsi_toggle_tags(&newpath);
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}
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if (async_code == AC_INQ_CHANGED) {
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/*
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* We've sent a start unit command, or
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* something similar to a device that
|
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* may have caused its inquiry data to
|
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* change. So we re-scan the device to
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* refresh the inquiry data for it.
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*/
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scsi_scan_lun(newpath.periph, &newpath,
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CAM_EXPECT_INQ_CHANGE, NULL);
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}
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xpt_release_path(&newpath);
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} else if (async_code == AC_LOST_DEVICE &&
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(device->flags & CAM_DEV_UNCONFIGURED) == 0) {
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device->flags |= CAM_DEV_UNCONFIGURED;
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xpt_release_device(device);
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} else if (async_code == AC_TRANSFER_NEG) {
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struct ccb_trans_settings *settings;
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settings = (struct ccb_trans_settings *)async_arg;
|
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scsi_set_transfer_settings(settings, device,
|
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/*async_update*/TRUE);
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}
|
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}
|
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|
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static void
|
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scsi_announce_periph(struct cam_periph *periph)
|
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{
|
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struct ccb_pathinq cpi;
|
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struct ccb_trans_settings cts;
|
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struct cam_path *path = periph->path;
|
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u_int speed;
|
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u_int freq;
|
|
u_int mb;
|
|
|
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mtx_assert(periph->sim->mtx, MA_OWNED);
|
|
|
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xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL);
|
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cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
|
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cts.type = CTS_TYPE_CURRENT_SETTINGS;
|
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xpt_action((union ccb*)&cts);
|
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if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
|
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return;
|
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/* Ask the SIM for its base transfer speed */
|
|
xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL);
|
|
cpi.ccb_h.func_code = XPT_PATH_INQ;
|
|
xpt_action((union ccb *)&cpi);
|
|
/* Report connection speed */
|
|
speed = cpi.base_transfer_speed;
|
|
freq = 0;
|
|
if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) {
|
|
struct ccb_trans_settings_spi *spi =
|
|
&cts.xport_specific.spi;
|
|
|
|
if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0
|
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&& spi->sync_offset != 0) {
|
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freq = scsi_calc_syncsrate(spi->sync_period);
|
|
speed = freq;
|
|
}
|
|
if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0)
|
|
speed *= (0x01 << spi->bus_width);
|
|
}
|
|
if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) {
|
|
struct ccb_trans_settings_fc *fc =
|
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&cts.xport_specific.fc;
|
|
|
|
if (fc->valid & CTS_FC_VALID_SPEED)
|
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speed = fc->bitrate;
|
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}
|
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if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) {
|
|
struct ccb_trans_settings_sas *sas =
|
|
&cts.xport_specific.sas;
|
|
|
|
if (sas->valid & CTS_SAS_VALID_SPEED)
|
|
speed = sas->bitrate;
|
|
}
|
|
mb = speed / 1000;
|
|
if (mb > 0)
|
|
printf("%s%d: %d.%03dMB/s transfers",
|
|
periph->periph_name, periph->unit_number,
|
|
mb, speed % 1000);
|
|
else
|
|
printf("%s%d: %dKB/s transfers", periph->periph_name,
|
|
periph->unit_number, speed);
|
|
/* Report additional information about SPI connections */
|
|
if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) {
|
|
struct ccb_trans_settings_spi *spi;
|
|
|
|
spi = &cts.xport_specific.spi;
|
|
if (freq != 0) {
|
|
printf(" (%d.%03dMHz%s, offset %d", freq / 1000,
|
|
freq % 1000,
|
|
(spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
|
|
? " DT" : "",
|
|
spi->sync_offset);
|
|
}
|
|
if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0
|
|
&& spi->bus_width > 0) {
|
|
if (freq != 0) {
|
|
printf(", ");
|
|
} else {
|
|
printf(" (");
|
|
}
|
|
printf("%dbit)", 8 * (0x01 << spi->bus_width));
|
|
} else if (freq != 0) {
|
|
printf(")");
|
|
}
|
|
}
|
|
if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) {
|
|
struct ccb_trans_settings_fc *fc;
|
|
|
|
fc = &cts.xport_specific.fc;
|
|
if (fc->valid & CTS_FC_VALID_WWNN)
|
|
printf(" WWNN 0x%llx", (long long) fc->wwnn);
|
|
if (fc->valid & CTS_FC_VALID_WWPN)
|
|
printf(" WWPN 0x%llx", (long long) fc->wwpn);
|
|
if (fc->valid & CTS_FC_VALID_PORT)
|
|
printf(" PortID 0x%x", fc->port);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|