| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/send/@/dev/firewire/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/send/@/dev/firewire/sbp.c |
/*-
* Copyright (c) 2003 Hidetoshi Shimokawa
* Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the acknowledgement as bellow:
*
* This product includes software developed by K. Kobayashi and H. Shimokawa
*
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/dev/firewire/sbp.c 226067 2011-10-06 19:15:51Z ken $
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <sys/malloc.h>
#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
#include <sys/lock.h>
#include <sys/mutex.h>
#endif
#if defined(__DragonFly__) || __FreeBSD_version < 500106
#include <sys/devicestat.h> /* for struct devstat */
#endif
#ifdef __DragonFly__
#include <bus/cam/cam.h>
#include <bus/cam/cam_ccb.h>
#include <bus/cam/cam_sim.h>
#include <bus/cam/cam_xpt_sim.h>
#include <bus/cam/cam_debug.h>
#include <bus/cam/cam_periph.h>
#include <bus/cam/scsi/scsi_all.h>
#include <bus/firewire/firewire.h>
#include <bus/firewire/firewirereg.h>
#include <bus/firewire/fwdma.h>
#include <bus/firewire/iec13213.h>
#include "sbp.h"
#else
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#include <cam/cam_periph.h>
#include <cam/scsi/scsi_all.h>
#include <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/fwdma.h>
#include <dev/firewire/iec13213.h>
#include <dev/firewire/sbp.h>
#endif
#define ccb_sdev_ptr spriv_ptr0
#define ccb_sbp_ptr spriv_ptr1
#define SBP_NUM_TARGETS 8 /* MAX 64 */
/*
* Scan_bus doesn't work for more than 8 LUNs
* because of CAM_SCSI2_MAXLUN in cam_xpt.c
*/
#define SBP_NUM_LUNS 64
#define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */)
#define SBP_DMA_SIZE PAGE_SIZE
#define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
#define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
#define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
/*
* STATUS FIFO addressing
* bit
* -----------------------
* 0- 1( 2): 0 (alignment)
* 2- 7( 6): target
* 8-15( 8): lun
* 16-31( 8): reserved
* 32-47(16): SBP_BIND_HI
* 48-64(16): bus_id, node_id
*/
#define SBP_BIND_HI 0x1
#define SBP_DEV2ADDR(t, l) \
(((u_int64_t)SBP_BIND_HI << 32) \
| (((l) & 0xff) << 8) \
| (((t) & 0x3f) << 2))
#define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
#define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
#define SBP_INITIATOR 7
static char *orb_fun_name[] = {
ORB_FUN_NAMES
};
static int debug = 0;
static int auto_login = 1;
static int max_speed = -1;
static int sbp_cold = 1;
static int ex_login = 1;
static int login_delay = 1000; /* msec */
static int scan_delay = 500; /* msec */
static int use_doorbell = 0;
static int sbp_tags = 0;
SYSCTL_DECL(_hw_firewire);
SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
"SBP debug flag");
SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
"SBP perform login automatically");
SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
"SBP transfer max speed");
SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
&ex_login, 0, "SBP enable exclusive login");
SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
&login_delay, 0, "SBP login delay in msec");
SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
&scan_delay, 0, "SBP scan delay in msec");
SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
&use_doorbell, 0, "SBP use doorbell request");
SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
"SBP tagged queuing support");
TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
#define NEED_RESPONSE 0
#define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
#ifdef __sparc64__ /* iommu */
#define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
#else
#define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
#endif
struct sbp_ocb {
STAILQ_ENTRY(sbp_ocb) ocb;
union ccb *ccb;
bus_addr_t bus_addr;
uint32_t orb[8];
#define IND_PTR_OFFSET (8*sizeof(uint32_t))
struct ind_ptr ind_ptr[SBP_IND_MAX];
struct sbp_dev *sdev;
int flags; /* XXX should be removed */
bus_dmamap_t dmamap;
};
#define OCB_ACT_MGM 0
#define OCB_ACT_CMD 1
#define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
struct sbp_dev{
#define SBP_DEV_RESET 0 /* accept login */
#define SBP_DEV_LOGIN 1 /* to login */
#if 0
#define SBP_DEV_RECONN 2 /* to reconnect */
#endif
#define SBP_DEV_TOATTACH 3 /* to attach */
#define SBP_DEV_PROBE 4 /* scan lun */
#define SBP_DEV_ATTACHED 5 /* in operation */
#define SBP_DEV_DEAD 6 /* unavailable unit */
#define SBP_DEV_RETRY 7 /* unavailable unit */
uint8_t status:4,
timeout:4;
uint8_t type;
uint16_t lun_id;
uint16_t freeze;
#define ORB_LINK_DEAD (1 << 0)
#define VALID_LUN (1 << 1)
#define ORB_POINTER_ACTIVE (1 << 2)
#define ORB_POINTER_NEED (1 << 3)
#define ORB_DOORBELL_ACTIVE (1 << 4)
#define ORB_DOORBELL_NEED (1 << 5)
#define ORB_SHORTAGE (1 << 6)
uint16_t flags;
struct cam_path *path;
struct sbp_target *target;
struct fwdma_alloc dma;
struct sbp_login_res *login;
struct callout login_callout;
struct sbp_ocb *ocb;
STAILQ_HEAD(, sbp_ocb) ocbs;
STAILQ_HEAD(, sbp_ocb) free_ocbs;
struct sbp_ocb *last_ocb;
char vendor[32];
char product[32];
char revision[10];
char bustgtlun[32];
};
struct sbp_target {
int target_id;
int num_lun;
struct sbp_dev **luns;
struct sbp_softc *sbp;
struct fw_device *fwdev;
uint32_t mgm_hi, mgm_lo;
struct sbp_ocb *mgm_ocb_cur;
STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
struct callout mgm_ocb_timeout;
struct callout scan_callout;
STAILQ_HEAD(, fw_xfer) xferlist;
int n_xfer;
};
struct sbp_softc {
struct firewire_dev_comm fd;
struct cam_sim *sim;
struct cam_path *path;
struct sbp_target targets[SBP_NUM_TARGETS];
struct fw_bind fwb;
bus_dma_tag_t dmat;
struct timeval last_busreset;
#define SIMQ_FREEZED 1
int flags;
struct mtx mtx;
};
#define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
#define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
static void sbp_post_explore (void *);
static void sbp_recv (struct fw_xfer *);
static void sbp_mgm_callback (struct fw_xfer *);
#if 0
static void sbp_cmd_callback (struct fw_xfer *);
#endif
static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
static void sbp_doorbell(struct sbp_dev *);
static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
static void sbp_abort_ocb (struct sbp_ocb *, int);
static void sbp_abort_all_ocbs (struct sbp_dev *, int);
static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int);
static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
static void sbp_cam_detach_sdev(struct sbp_dev *);
static void sbp_free_sdev(struct sbp_dev *);
static void sbp_cam_detach_target (struct sbp_target *);
static void sbp_free_target (struct sbp_target *);
static void sbp_mgm_timeout (void *arg);
static void sbp_timeout (void *arg);
static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
/* cam related functions */
static void sbp_action(struct cam_sim *sim, union ccb *ccb);
static void sbp_poll(struct cam_sim *sim);
static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
static void sbp_cam_scan_target(void *arg);
static char *orb_status0[] = {
/* 0 */ "No additional information to report",
/* 1 */ "Request type not supported",
/* 2 */ "Speed not supported",
/* 3 */ "Page size not supported",
/* 4 */ "Access denied",
/* 5 */ "Logical unit not supported",
/* 6 */ "Maximum payload too small",
/* 7 */ "Reserved for future standardization",
/* 8 */ "Resources unavailable",
/* 9 */ "Function rejected",
/* A */ "Login ID not recognized",
/* B */ "Dummy ORB completed",
/* C */ "Request aborted",
/* FF */ "Unspecified error"
#define MAX_ORB_STATUS0 0xd
};
static char *orb_status1_object[] = {
/* 0 */ "Operation request block (ORB)",
/* 1 */ "Data buffer",
/* 2 */ "Page table",
/* 3 */ "Unable to specify"
};
static char *orb_status1_serial_bus_error[] = {
/* 0 */ "Missing acknowledge",
/* 1 */ "Reserved; not to be used",
/* 2 */ "Time-out error",
/* 3 */ "Reserved; not to be used",
/* 4 */ "Busy retry limit exceeded(X)",
/* 5 */ "Busy retry limit exceeded(A)",
/* 6 */ "Busy retry limit exceeded(B)",
/* 7 */ "Reserved for future standardization",
/* 8 */ "Reserved for future standardization",
/* 9 */ "Reserved for future standardization",
/* A */ "Reserved for future standardization",
/* B */ "Tardy retry limit exceeded",
/* C */ "Conflict error",
/* D */ "Data error",
/* E */ "Type error",
/* F */ "Address error"
};
static void
sbp_identify(driver_t *driver, device_t parent)
{
SBP_DEBUG(0)
printf("sbp_identify\n");
END_DEBUG
BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
}
/*
* sbp_probe()
*/
static int
sbp_probe(device_t dev)
{
device_t pa;
SBP_DEBUG(0)
printf("sbp_probe\n");
END_DEBUG
pa = device_get_parent(dev);
if(device_get_unit(dev) != device_get_unit(pa)){
return(ENXIO);
}
device_set_desc(dev, "SBP-2/SCSI over FireWire");
#if 0
if (bootverbose)
debug = bootverbose;
#endif
return (0);
}
/*
* Display device characteristics on the console
*/
static void
sbp_show_sdev_info(struct sbp_dev *sdev)
{
struct fw_device *fwdev;
fwdev = sdev->target->fwdev;
device_printf(sdev->target->sbp->fd.dev,
"%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
"speed:%d maxrec:%d\n",
__func__,
sdev->bustgtlun,
(sdev->type & 0x40) >> 6,
(sdev->type & 0x1f),
fwdev->eui.hi,
fwdev->eui.lo,
fwdev->dst,
fwdev->speed,
fwdev->maxrec);
device_printf(sdev->target->sbp->fd.dev,
"%s: %s '%s' '%s' '%s'\n",
__func__,
sdev->bustgtlun,
sdev->vendor,
sdev->product,
sdev->revision);
}
static struct {
int bus;
int target;
struct fw_eui64 eui;
} wired[] = {
/* Bus Target EUI64 */
#if 0
{0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
{0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
{0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
#endif
{-1, -1, {0,0}}
};
static int
sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
{
int bus, i, target=-1;
char w[SBP_NUM_TARGETS];
bzero(w, sizeof(w));
bus = device_get_unit(sbp->fd.dev);
/* XXX wired-down configuration should be gotten from
tunable or device hint */
for (i = 0; wired[i].bus >= 0; i ++) {
if (wired[i].bus == bus) {
w[wired[i].target] = 1;
if (wired[i].eui.hi == fwdev->eui.hi &&
wired[i].eui.lo == fwdev->eui.lo)
target = wired[i].target;
}
}
if (target >= 0) {
if(target < SBP_NUM_TARGETS &&
sbp->targets[target].fwdev == NULL)
return(target);
device_printf(sbp->fd.dev,
"target %d is not free for %08x:%08x\n",
target, fwdev->eui.hi, fwdev->eui.lo);
target = -1;
}
/* non-wired target */
for (i = 0; i < SBP_NUM_TARGETS; i ++)
if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
target = i;
break;
}
return target;
}
static void
sbp_alloc_lun(struct sbp_target *target)
{
struct crom_context cc;
struct csrreg *reg;
struct sbp_dev *sdev, **newluns;
struct sbp_softc *sbp;
int maxlun, lun, i;
sbp = target->sbp;
crom_init_context(&cc, target->fwdev->csrrom);
/* XXX shoud parse appropriate unit directories only */
maxlun = -1;
while (cc.depth >= 0) {
reg = crom_search_key(&cc, CROM_LUN);
if (reg == NULL)
break;
lun = reg->val & 0xffff;
SBP_DEBUG(0)
printf("target %d lun %d found\n", target->target_id, lun);
END_DEBUG
if (maxlun < lun)
maxlun = lun;
crom_next(&cc);
}
if (maxlun < 0)
printf("%s:%d no LUN found\n",
device_get_nameunit(target->sbp->fd.dev),
target->target_id);
maxlun ++;
if (maxlun >= SBP_NUM_LUNS)
maxlun = SBP_NUM_LUNS;
/* Invalidiate stale devices */
for (lun = 0; lun < target->num_lun; lun ++) {
sdev = target->luns[lun];
if (sdev == NULL)
continue;
sdev->flags &= ~VALID_LUN;
if (lun >= maxlun) {
/* lost device */
sbp_cam_detach_sdev(sdev);
sbp_free_sdev(sdev);
target->luns[lun] = NULL;
}
}
/* Reallocate */
if (maxlun != target->num_lun) {
newluns = (struct sbp_dev **) realloc(target->luns,
sizeof(struct sbp_dev *) * maxlun,
M_SBP, M_NOWAIT | M_ZERO);
if (newluns == NULL) {
printf("%s: realloc failed\n", __func__);
newluns = target->luns;
maxlun = target->num_lun;
}
/*
* We must zero the extended region for the case
* realloc() doesn't allocate new buffer.
*/
if (maxlun > target->num_lun)
bzero(&newluns[target->num_lun],
sizeof(struct sbp_dev *) *
(maxlun - target->num_lun));
target->luns = newluns;
target->num_lun = maxlun;
}
crom_init_context(&cc, target->fwdev->csrrom);
while (cc.depth >= 0) {
int new = 0;
reg = crom_search_key(&cc, CROM_LUN);
if (reg == NULL)
break;
lun = reg->val & 0xffff;
if (lun >= SBP_NUM_LUNS) {
printf("too large lun %d\n", lun);
goto next;
}
sdev = target->luns[lun];
if (sdev == NULL) {
sdev = malloc(sizeof(struct sbp_dev),
M_SBP, M_NOWAIT | M_ZERO);
if (sdev == NULL) {
printf("%s: malloc failed\n", __func__);
goto next;
}
target->luns[lun] = sdev;
sdev->lun_id = lun;
sdev->target = target;
STAILQ_INIT(&sdev->ocbs);
CALLOUT_INIT(&sdev->login_callout);
sdev->status = SBP_DEV_RESET;
new = 1;
snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
device_get_nameunit(sdev->target->sbp->fd.dev),
sdev->target->target_id,
sdev->lun_id);
}
sdev->flags |= VALID_LUN;
sdev->type = (reg->val & 0xff0000) >> 16;
if (new == 0)
goto next;
fwdma_malloc(sbp->fd.fc,
/* alignment */ sizeof(uint32_t),
SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT |
BUS_DMA_COHERENT);
if (sdev->dma.v_addr == NULL) {
printf("%s: dma space allocation failed\n",
__func__);
free(sdev, M_SBP);
target->luns[lun] = NULL;
goto next;
}
sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
sdev->ocb = (struct sbp_ocb *)
((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
bzero((char *)sdev->ocb,
sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
STAILQ_INIT(&sdev->free_ocbs);
for (i = 0; i < SBP_QUEUE_LEN; i++) {
struct sbp_ocb *ocb;
ocb = &sdev->ocb[i];
ocb->bus_addr = sdev->dma.bus_addr
+ SBP_LOGIN_SIZE
+ sizeof(struct sbp_ocb) * i
+ offsetof(struct sbp_ocb, orb[0]);
if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
printf("sbp_attach: cannot create dmamap\n");
/* XXX */
goto next;
}
sbp_free_ocb(sdev, ocb);
}
next:
crom_next(&cc);
}
for (lun = 0; lun < target->num_lun; lun ++) {
sdev = target->luns[lun];
if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
sbp_cam_detach_sdev(sdev);
sbp_free_sdev(sdev);
target->luns[lun] = NULL;
}
}
}
static struct sbp_target *
sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
{
int i;
struct sbp_target *target;
struct crom_context cc;
struct csrreg *reg;
SBP_DEBUG(1)
printf("sbp_alloc_target\n");
END_DEBUG
i = sbp_new_target(sbp, fwdev);
if (i < 0) {
device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
return NULL;
}
/* new target */
target = &sbp->targets[i];
target->sbp = sbp;
target->fwdev = fwdev;
target->target_id = i;
/* XXX we may want to reload mgm port after each bus reset */
/* XXX there might be multiple management agents */
crom_init_context(&cc, target->fwdev->csrrom);
reg = crom_search_key(&cc, CROM_MGM);
if (reg == NULL || reg->val == 0) {
printf("NULL management address\n");
target->fwdev = NULL;
return NULL;
}
target->mgm_hi = 0xffff;
target->mgm_lo = 0xf0000000 | (reg->val << 2);
target->mgm_ocb_cur = NULL;
SBP_DEBUG(1)
printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
END_DEBUG
STAILQ_INIT(&target->xferlist);
target->n_xfer = 0;
STAILQ_INIT(&target->mgm_ocb_queue);
CALLOUT_INIT(&target->mgm_ocb_timeout);
CALLOUT_INIT(&target->scan_callout);
target->luns = NULL;
target->num_lun = 0;
return target;
}
static void
sbp_probe_lun(struct sbp_dev *sdev)
{
struct fw_device *fwdev;
struct crom_context c, *cc = &c;
struct csrreg *reg;
bzero(sdev->vendor, sizeof(sdev->vendor));
bzero(sdev->product, sizeof(sdev->product));
fwdev = sdev->target->fwdev;
crom_init_context(cc, fwdev->csrrom);
/* get vendor string */
crom_search_key(cc, CSRKEY_VENDOR);
crom_next(cc);
crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
/* skip to the unit directory for SBP-2 */
while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
if (reg->val == CSRVAL_T10SBP2)
break;
crom_next(cc);
}
/* get firmware revision */
reg = crom_search_key(cc, CSRKEY_FIRM_VER);
if (reg != NULL)
snprintf(sdev->revision, sizeof(sdev->revision),
"%06x", reg->val);
/* get product string */
crom_search_key(cc, CSRKEY_MODEL);
crom_next(cc);
crom_parse_text(cc, sdev->product, sizeof(sdev->product));
}
static void
sbp_login_callout(void *arg)
{
struct sbp_dev *sdev = (struct sbp_dev *)arg;
sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
}
static void
sbp_login(struct sbp_dev *sdev)
{
struct timeval delta;
struct timeval t;
int ticks = 0;
microtime(&delta);
timevalsub(&delta, &sdev->target->sbp->last_busreset);
t.tv_sec = login_delay / 1000;
t.tv_usec = (login_delay % 1000) * 1000;
timevalsub(&t, &delta);
if (t.tv_sec >= 0 && t.tv_usec > 0)
ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
SBP_DEBUG(0)
printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
(intmax_t)t.tv_sec, t.tv_usec, ticks);
END_DEBUG
callout_reset(&sdev->login_callout, ticks,
sbp_login_callout, (void *)(sdev));
}
#define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
&& crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
static void
sbp_probe_target(void *arg)
{
struct sbp_target *target = (struct sbp_target *)arg;
struct sbp_softc *sbp = target->sbp;
struct sbp_dev *sdev;
int i, alive;
alive = SBP_FWDEV_ALIVE(target->fwdev);
SBP_DEBUG(1)
device_printf(sbp->fd.dev, "%s %d%salive\n",
__func__, target->target_id,
(!alive) ? " not " : "");
END_DEBUG
sbp = target->sbp;
sbp_alloc_lun(target);
/* XXX untimeout mgm_ocb and dequeue */
for (i=0; i < target->num_lun; i++) {
sdev = target->luns[i];
if (sdev == NULL)
continue;
if (alive && (sdev->status != SBP_DEV_DEAD)) {
if (sdev->path != NULL) {
SBP_LOCK(sbp);
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
SBP_UNLOCK(sbp);
}
sbp_probe_lun(sdev);
sbp_show_sdev_info(sdev);
sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
switch (sdev->status) {
case SBP_DEV_RESET:
/* new or revived target */
if (auto_login)
sbp_login(sdev);
break;
case SBP_DEV_TOATTACH:
case SBP_DEV_PROBE:
case SBP_DEV_ATTACHED:
case SBP_DEV_RETRY:
default:
sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
break;
}
} else {
switch (sdev->status) {
case SBP_DEV_ATTACHED:
SBP_DEBUG(0)
/* the device has gone */
device_printf(sbp->fd.dev, "%s: lost target\n",
__func__);
END_DEBUG
if (sdev->path) {
SBP_LOCK(sbp);
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
SBP_UNLOCK(sbp);
}
sdev->status = SBP_DEV_RETRY;
sbp_cam_detach_sdev(sdev);
sbp_free_sdev(sdev);
target->luns[i] = NULL;
break;
case SBP_DEV_PROBE:
case SBP_DEV_TOATTACH:
sdev->status = SBP_DEV_RESET;
break;
case SBP_DEV_RETRY:
case SBP_DEV_RESET:
case SBP_DEV_DEAD:
break;
}
}
}
}
static void
sbp_post_busreset(void *arg)
{
struct sbp_softc *sbp;
sbp = (struct sbp_softc *)arg;
SBP_DEBUG(0)
printf("sbp_post_busreset\n");
END_DEBUG
if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
SBP_LOCK(sbp);
xpt_freeze_simq(sbp->sim, /*count*/1);
sbp->sim->flags |= SIMQ_FREEZED;
SBP_UNLOCK(sbp);
}
microtime(&sbp->last_busreset);
}
static void
sbp_post_explore(void *arg)
{
struct sbp_softc *sbp = (struct sbp_softc *)arg;
struct sbp_target *target;
struct fw_device *fwdev;
int i, alive;
SBP_DEBUG(0)
printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
END_DEBUG
/* We need physical access */
if (!firewire_phydma_enable)
return;
if (sbp_cold > 0)
sbp_cold --;
#if 0
/*
* XXX don't let CAM the bus rest.
* CAM tries to do something with freezed (DEV_RETRY) devices.
*/
xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
#endif
/* Garbage Collection */
for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
target = &sbp->targets[i];
STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
if (target->fwdev == NULL || target->fwdev == fwdev)
break;
if (fwdev == NULL) {
/* device has removed in lower driver */
sbp_cam_detach_target(target);
sbp_free_target(target);
}
}
/* traverse device list */
STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
SBP_DEBUG(0)
device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
__func__, fwdev->eui.hi, fwdev->eui.lo,
(fwdev->status != FWDEVATTACHED) ? "not" : "",
fwdev->status);
END_DEBUG
alive = SBP_FWDEV_ALIVE(fwdev);
for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
target = &sbp->targets[i];
if(target->fwdev == fwdev ) {
/* known target */
break;
}
}
if(i == SBP_NUM_TARGETS){
if (alive) {
/* new target */
target = sbp_alloc_target(sbp, fwdev);
if (target == NULL)
continue;
} else {
continue;
}
}
sbp_probe_target((void *)target);
if (target->num_lun == 0)
sbp_free_target(target);
}
SBP_LOCK(sbp);
xpt_release_simq(sbp->sim, /*run queue*/TRUE);
sbp->sim->flags &= ~SIMQ_FREEZED;
SBP_UNLOCK(sbp);
}
#if NEED_RESPONSE
static void
sbp_loginres_callback(struct fw_xfer *xfer){
int s;
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
END_DEBUG
/* recycle */
s = splfw();
STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
splx(s);
return;
}
#endif
static __inline void
sbp_xfer_free(struct fw_xfer *xfer)
{
struct sbp_dev *sdev;
int s;
sdev = (struct sbp_dev *)xfer->sc;
fw_xfer_unload(xfer);
s = splfw();
SBP_LOCK(sdev->target->sbp);
STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
SBP_UNLOCK(sdev->target->sbp);
splx(s);
}
static void
sbp_reset_start_callback(struct fw_xfer *xfer)
{
struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
struct sbp_target *target = sdev->target;
int i;
if (xfer->resp != 0) {
device_printf(sdev->target->sbp->fd.dev,
"%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
}
for (i = 0; i < target->num_lun; i++) {
tsdev = target->luns[i];
if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
sbp_login(tsdev);
}
}
static void
sbp_reset_start(struct sbp_dev *sdev)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__,sdev->bustgtlun);
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
xfer->hand = sbp_reset_start_callback;
fp = &xfer->send.hdr;
fp->mode.wreqq.dest_hi = 0xffff;
fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
fp->mode.wreqq.data = htonl(0xf);
fw_asyreq(xfer->fc, -1, xfer);
}
static void
sbp_mgm_callback(struct fw_xfer *xfer)
{
struct sbp_dev *sdev;
int resp;
sdev = (struct sbp_dev *)xfer->sc;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
resp = xfer->resp;
sbp_xfer_free(xfer);
return;
}
static struct sbp_dev *
sbp_next_dev(struct sbp_target *target, int lun)
{
struct sbp_dev **sdevp;
int i;
for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
i++, sdevp++)
if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
return(*sdevp);
return(NULL);
}
#define SCAN_PRI 1
static void
sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
{
struct sbp_target *target;
struct sbp_dev *sdev;
sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
target = sdev->target;
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
sdev->status = SBP_DEV_ATTACHED;
} else {
device_printf(sdev->target->sbp->fd.dev,
"%s:%s failed\n", __func__, sdev->bustgtlun);
}
sdev = sbp_next_dev(target, sdev->lun_id + 1);
if (sdev == NULL) {
free(ccb, M_SBP);
return;
}
/* reuse ccb */
xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
ccb->ccb_h.ccb_sdev_ptr = sdev;
xpt_action(ccb);
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 1;
}
static void
sbp_cam_scan_target(void *arg)
{
struct sbp_target *target = (struct sbp_target *)arg;
struct sbp_dev *sdev;
union ccb *ccb;
sdev = sbp_next_dev(target, 0);
if (sdev == NULL) {
printf("sbp_cam_scan_target: nothing to do for target%d\n",
target->target_id);
return;
}
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
if (ccb == NULL) {
printf("sbp_cam_scan_target: malloc failed\n");
return;
}
xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
ccb->ccb_h.func_code = XPT_SCAN_LUN;
ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
ccb->crcn.flags = CAM_FLAG_NONE;
ccb->ccb_h.ccb_sdev_ptr = sdev;
/* The scan is in progress now. */
SBP_LOCK(target->sbp);
xpt_action(ccb);
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 1;
SBP_UNLOCK(target->sbp);
}
static __inline void
sbp_scan_dev(struct sbp_dev *sdev)
{
sdev->status = SBP_DEV_PROBE;
callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
sbp_cam_scan_target, (void *)sdev->target);
}
static void
sbp_do_attach(struct fw_xfer *xfer)
{
struct sbp_dev *sdev;
struct sbp_target *target;
struct sbp_softc *sbp;
sdev = (struct sbp_dev *)xfer->sc;
target = sdev->target;
sbp = target->sbp;
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
sbp_xfer_free(xfer);
if (sdev->path == NULL)
xpt_create_path(&sdev->path, xpt_periph,
cam_sim_path(target->sbp->sim),
target->target_id, sdev->lun_id);
/*
* Let CAM scan the bus if we are in the boot process.
* XXX xpt_scan_bus cannot detect LUN larger than 0
* if LUN 0 doesn't exists.
*/
if (sbp_cold > 0) {
sdev->status = SBP_DEV_ATTACHED;
return;
}
sbp_scan_dev(sdev);
return;
}
static void
sbp_agent_reset_callback(struct fw_xfer *xfer)
{
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
if (xfer->resp != 0) {
device_printf(sdev->target->sbp->fd.dev,
"%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
}
sbp_xfer_free(xfer);
if (sdev->path) {
SBP_LOCK(sdev->target->sbp);
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 0;
SBP_UNLOCK(sdev->target->sbp);
}
}
static void
sbp_agent_reset(struct sbp_dev *sdev)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
if (xfer == NULL)
return;
if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
xfer->hand = sbp_agent_reset_callback;
else
xfer->hand = sbp_do_attach;
fp = &xfer->send.hdr;
fp->mode.wreqq.data = htonl(0xf);
fw_asyreq(xfer->fc, -1, xfer);
sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
}
static void
sbp_busy_timeout_callback(struct fw_xfer *xfer)
{
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
sbp_xfer_free(xfer);
sbp_agent_reset(sdev);
}
static void
sbp_busy_timeout(struct sbp_dev *sdev)
{
struct fw_pkt *fp;
struct fw_xfer *xfer;
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
xfer->hand = sbp_busy_timeout_callback;
fp = &xfer->send.hdr;
fp->mode.wreqq.dest_hi = 0xffff;
fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
fw_asyreq(xfer->fc, -1, xfer);
}
static void
sbp_orb_pointer_callback(struct fw_xfer *xfer)
{
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
SBP_DEBUG(2)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
if (xfer->resp != 0) {
/* XXX */
printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
}
sbp_xfer_free(xfer);
SBP_LOCK(sdev->target->sbp);
sdev->flags &= ~ORB_POINTER_ACTIVE;
if ((sdev->flags & ORB_POINTER_NEED) != 0) {
struct sbp_ocb *ocb;
sdev->flags &= ~ORB_POINTER_NEED;
ocb = STAILQ_FIRST(&sdev->ocbs);
if (ocb != NULL)
sbp_orb_pointer(sdev, ocb);
}
SBP_UNLOCK(sdev->target->sbp);
return;
}
static void
sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s 0x%08x\n",
__func__, sdev->bustgtlun,
(uint32_t)ocb->bus_addr);
END_DEBUG
mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
SBP_DEBUG(0)
printf("%s: orb pointer active\n", __func__);
END_DEBUG
sdev->flags |= ORB_POINTER_NEED;
return;
}
sdev->flags |= ORB_POINTER_ACTIVE;
xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08);
if (xfer == NULL)
return;
xfer->hand = sbp_orb_pointer_callback;
fp = &xfer->send.hdr;
fp->mode.wreqb.len = 8;
fp->mode.wreqb.extcode = 0;
xfer->send.payload[0] =
htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
/*
* sbp_xfer_free() will attempt to acquire
* the SBP lock on entrance. Also, this removes
* a LOR between the firewire layer and sbp
*/
SBP_UNLOCK(sdev->target->sbp);
if(fw_asyreq(xfer->fc, -1, xfer) != 0){
sbp_xfer_free(xfer);
ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ocb->ccb);
}
SBP_LOCK(sdev->target->sbp);
}
static void
sbp_doorbell_callback(struct fw_xfer *xfer)
{
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
if (xfer->resp != 0) {
/* XXX */
device_printf(sdev->target->sbp->fd.dev,
"%s: xfer->resp = %d\n", __func__, xfer->resp);
}
sbp_xfer_free(xfer);
sdev->flags &= ~ORB_DOORBELL_ACTIVE;
if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
sdev->flags &= ~ORB_DOORBELL_NEED;
SBP_LOCK(sdev->target->sbp);
sbp_doorbell(sdev);
SBP_UNLOCK(sdev->target->sbp);
}
return;
}
static void
sbp_doorbell(struct sbp_dev *sdev)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
sdev->flags |= ORB_DOORBELL_NEED;
return;
}
sdev->flags |= ORB_DOORBELL_ACTIVE;
xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10);
if (xfer == NULL)
return;
xfer->hand = sbp_doorbell_callback;
fp = &xfer->send.hdr;
fp->mode.wreqq.data = htonl(0xf);
fw_asyreq(xfer->fc, -1, xfer);
}
static struct fw_xfer *
sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
struct sbp_target *target;
int s, new = 0;
mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
target = sdev->target;
s = splfw();
xfer = STAILQ_FIRST(&target->xferlist);
if (xfer == NULL) {
if (target->n_xfer > 5 /* XXX */) {
printf("sbp: no more xfer for this target\n");
splx(s);
return(NULL);
}
xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
if(xfer == NULL){
printf("sbp: fw_xfer_alloc_buf failed\n");
splx(s);
return NULL;
}
target->n_xfer ++;
if (debug)
printf("sbp: alloc %d xfer\n", target->n_xfer);
new = 1;
} else {
STAILQ_REMOVE_HEAD(&target->xferlist, link);
}
splx(s);
if (new) {
xfer->recv.pay_len = 0;
xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
xfer->fc = sdev->target->sbp->fd.fc;
}
if (tcode == FWTCODE_WREQB)
xfer->send.pay_len = 8;
else
xfer->send.pay_len = 0;
xfer->sc = (caddr_t)sdev;
fp = &xfer->send.hdr;
fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
fp->mode.wreqq.tlrt = 0;
fp->mode.wreqq.tcode = tcode;
fp->mode.wreqq.pri = 0;
fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
return xfer;
}
static struct fw_xfer *
sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
{
struct sbp_softc *sbp = sdev->target->sbp;
struct fw_xfer *xfer;
SBP_LOCK(sbp);
xfer = sbp_write_cmd_locked(sdev, tcode, offset);
SBP_UNLOCK(sbp);
return (xfer);
}
static void
sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
struct sbp_ocb *ocb;
struct sbp_target *target;
int s, nid;
target = sdev->target;
nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
s = splfw();
SBP_LOCK(target->sbp);
if (func == ORB_FUN_RUNQUEUE) {
ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
if (target->mgm_ocb_cur != NULL || ocb == NULL) {
SBP_UNLOCK(target->sbp);
splx(s);
return;
}
STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
SBP_UNLOCK(target->sbp);
goto start;
}
if ((ocb = sbp_get_ocb(sdev)) == NULL) {
SBP_UNLOCK(target->sbp);
splx(s);
/* XXX */
return;
}
SBP_UNLOCK(target->sbp);
ocb->flags = OCB_ACT_MGM;
ocb->sdev = sdev;
bzero((void *)ocb->orb, sizeof(ocb->orb));
ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s %s\n",
__func__,sdev->bustgtlun,
orb_fun_name[(func>>16)&0xf]);
END_DEBUG
switch (func) {
case ORB_FUN_LGI:
ocb->orb[0] = ocb->orb[1] = 0; /* password */
ocb->orb[2] = htonl(nid << 16);
ocb->orb[3] = htonl(sdev->dma.bus_addr);
ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
if (ex_login)
ocb->orb[4] |= htonl(ORB_EXV);
ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
break;
case ORB_FUN_ATA:
ocb->orb[0] = htonl((0 << 16) | 0);
ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
/* fall through */
case ORB_FUN_RCN:
case ORB_FUN_LGO:
case ORB_FUN_LUR:
case ORB_FUN_RST:
case ORB_FUN_ATS:
ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
break;
}
if (target->mgm_ocb_cur != NULL) {
/* there is a standing ORB */
SBP_LOCK(target->sbp);
STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
SBP_UNLOCK(target->sbp);
splx(s);
return;
}
start:
target->mgm_ocb_cur = ocb;
splx(s);
callout_reset(&target->mgm_ocb_timeout, 5*hz,
sbp_mgm_timeout, (caddr_t)ocb);
xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
if(xfer == NULL){
return;
}
xfer->hand = sbp_mgm_callback;
fp = &xfer->send.hdr;
fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
fp->mode.wreqb.len = 8;
fp->mode.wreqb.extcode = 0;
xfer->send.payload[0] = htonl(nid << 16);
xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
fw_asyreq(xfer->fc, -1, xfer);
}
static void
sbp_print_scsi_cmd(struct sbp_ocb *ocb)
{
struct ccb_scsiio *csio;
csio = &ocb->ccb->csio;
printf("%s:%d:%d XPT_SCSI_IO: "
"cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
", flags: 0x%02x, "
"%db cmd/%db data/%db sense\n",
device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
csio->cdb_io.cdb_bytes[0],
csio->cdb_io.cdb_bytes[1],
csio->cdb_io.cdb_bytes[2],
csio->cdb_io.cdb_bytes[3],
csio->cdb_io.cdb_bytes[4],
csio->cdb_io.cdb_bytes[5],
csio->cdb_io.cdb_bytes[6],
csio->cdb_io.cdb_bytes[7],
csio->cdb_io.cdb_bytes[8],
csio->cdb_io.cdb_bytes[9],
ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
csio->cdb_len, csio->dxfer_len,
csio->sense_len);
}
static void
sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
{
struct sbp_cmd_status *sbp_cmd_status;
struct scsi_sense_data_fixed *sense;
sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data;
SBP_DEBUG(0)
sbp_print_scsi_cmd(ocb);
/* XXX need decode status */
printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
ocb->sdev->bustgtlun,
sbp_cmd_status->status,
sbp_cmd_status->sfmt,
sbp_cmd_status->valid,
sbp_cmd_status->s_key,
sbp_cmd_status->s_code,
sbp_cmd_status->s_qlfr,
sbp_status->len);
END_DEBUG
switch (sbp_cmd_status->status) {
case SCSI_STATUS_CHECK_COND:
case SCSI_STATUS_BUSY:
case SCSI_STATUS_CMD_TERMINATED:
if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
sense->error_code = SSD_CURRENT_ERROR;
}else{
sense->error_code = SSD_DEFERRED_ERROR;
}
if(sbp_cmd_status->valid)
sense->error_code |= SSD_ERRCODE_VALID;
sense->flags = sbp_cmd_status->s_key;
if(sbp_cmd_status->mark)
sense->flags |= SSD_FILEMARK;
if(sbp_cmd_status->eom)
sense->flags |= SSD_EOM;
if(sbp_cmd_status->ill_len)
sense->flags |= SSD_ILI;
bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
if (sbp_status->len <= 1)
/* XXX not scsi status. shouldn't be happened */
sense->extra_len = 0;
else if (sbp_status->len <= 4)
/* add_sense_code(_qual), info, cmd_spec_info */
sense->extra_len = 6;
else
/* fru, sense_key_spec */
sense->extra_len = 10;
bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
sense->add_sense_code = sbp_cmd_status->s_code;
sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
sense->fru = sbp_cmd_status->fru;
bcopy(&sbp_cmd_status->s_keydep[0],
&sense->sense_key_spec[0], 3);
ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
| CAM_AUTOSNS_VALID;
/*
{
uint8_t j, *tmp;
tmp = sense;
for( j = 0 ; j < 32 ; j+=8){
printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
}
}
*/
break;
default:
device_printf(ocb->sdev->target->sbp->fd.dev,
"%s:%s unknown scsi status 0x%x\n",
__func__, ocb->sdev->bustgtlun,
sbp_cmd_status->status);
}
}
static void
sbp_fix_inq_data(struct sbp_ocb *ocb)
{
union ccb *ccb;
struct sbp_dev *sdev;
struct scsi_inquiry_data *inq;
ccb = ocb->ccb;
sdev = ocb->sdev;
if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
return;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s\n", __func__, sdev->bustgtlun);
END_DEBUG
inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
switch (SID_TYPE(inq)) {
case T_DIRECT:
#if 0
/*
* XXX Convert Direct Access device to RBC.
* I've never seen FireWire DA devices which support READ_6.
*/
if (SID_TYPE(inq) == T_DIRECT)
inq->device |= T_RBC; /* T_DIRECT == 0 */
#endif
/* fall through */
case T_RBC:
/*
* Override vendor/product/revision information.
* Some devices sometimes return strange strings.
*/
#if 1
bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
bcopy(sdev->product, inq->product, sizeof(inq->product));
bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
#endif
break;
}
/*
* Force to enable/disable tagged queuing.
* XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
*/
if (sbp_tags > 0)
inq->flags |= SID_CmdQue;
else if (sbp_tags < 0)
inq->flags &= ~SID_CmdQue;
}
static void
sbp_recv1(struct fw_xfer *xfer)
{
struct fw_pkt *rfp;
#if NEED_RESPONSE
struct fw_pkt *sfp;
#endif
struct sbp_softc *sbp;
struct sbp_dev *sdev;
struct sbp_ocb *ocb;
struct sbp_login_res *login_res = NULL;
struct sbp_status *sbp_status;
struct sbp_target *target;
int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
uint32_t addr;
/*
uint32_t *ld;
ld = xfer->recv.buf;
printf("sbp %x %d %d %08x %08x %08x %08x\n",
xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
*/
sbp = (struct sbp_softc *)xfer->sc;
if (xfer->resp != 0){
printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
goto done0;
}
if (xfer->recv.payload == NULL){
printf("sbp_recv: xfer->recv.payload == NULL\n");
goto done0;
}
rfp = &xfer->recv.hdr;
if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
goto done0;
}
sbp_status = (struct sbp_status *)xfer->recv.payload;
addr = rfp->mode.wreqb.dest_lo;
SBP_DEBUG(2)
printf("received address 0x%x\n", addr);
END_DEBUG
t = SBP_ADDR2TRG(addr);
if (t >= SBP_NUM_TARGETS) {
device_printf(sbp->fd.dev,
"sbp_recv1: invalid target %d\n", t);
goto done0;
}
target = &sbp->targets[t];
l = SBP_ADDR2LUN(addr);
if (l >= target->num_lun || target->luns[l] == NULL) {
device_printf(sbp->fd.dev,
"sbp_recv1: invalid lun %d (target=%d)\n", l, t);
goto done0;
}
sdev = target->luns[l];
ocb = NULL;
switch (sbp_status->src) {
case 0:
case 1:
/* check mgm_ocb_cur first */
ocb = target->mgm_ocb_cur;
if (ocb != NULL) {
if (OCB_MATCH(ocb, sbp_status)) {
callout_stop(&target->mgm_ocb_timeout);
target->mgm_ocb_cur = NULL;
break;
}
}
ocb = sbp_dequeue_ocb(sdev, sbp_status);
if (ocb == NULL) {
device_printf(sdev->target->sbp->fd.dev,
#if defined(__DragonFly__) || __FreeBSD_version < 500000
"%s:%s No ocb(%lx) on the queue\n",
#else
"%s:%s No ocb(%x) on the queue\n",
#endif
__func__,sdev->bustgtlun,
ntohl(sbp_status->orb_lo));
}
break;
case 2:
/* unsolicit */
device_printf(sdev->target->sbp->fd.dev,
"%s:%s unsolicit status received\n",
__func__, sdev->bustgtlun);
break;
default:
device_printf(sdev->target->sbp->fd.dev,
"%s:%s unknown sbp_status->src\n",
__func__, sdev->bustgtlun);
}
status_valid0 = (sbp_status->src < 2
&& sbp_status->resp == ORB_RES_CMPL
&& sbp_status->dead == 0);
status_valid = (status_valid0 && sbp_status->status == 0);
if (!status_valid0 || debug > 2){
int status;
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s ORB status src:%x resp:%x dead:%x"
#if defined(__DragonFly__) || __FreeBSD_version < 500000
" len:%x stat:%x orb:%x%08lx\n",
#else
" len:%x stat:%x orb:%x%08x\n",
#endif
__func__, sdev->bustgtlun,
sbp_status->src, sbp_status->resp, sbp_status->dead,
sbp_status->len, sbp_status->status,
ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
END_DEBUG
device_printf(sdev->target->sbp->fd.dev,
"%s\n", sdev->bustgtlun);
status = sbp_status->status;
switch(sbp_status->resp) {
case 0:
if (status > MAX_ORB_STATUS0)
printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
else
printf("%s\n", orb_status0[status]);
break;
case 1:
printf("Obj: %s, Error: %s\n",
orb_status1_object[(status>>6) & 3],
orb_status1_serial_bus_error[status & 0xf]);
break;
case 2:
printf("Illegal request\n");
break;
case 3:
printf("Vendor dependent\n");
break;
default:
printf("unknown respose code %d\n", sbp_status->resp);
}
}
/* we have to reset the fetch agent if it's dead */
if (sbp_status->dead) {
if (sdev->path) {
SBP_LOCK(sbp);
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
SBP_UNLOCK(sbp);
}
reset_agent = 1;
}
if (ocb == NULL)
goto done;
switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
case ORB_FMT_NOP:
break;
case ORB_FMT_VED:
break;
case ORB_FMT_STD:
switch(ocb->flags) {
case OCB_ACT_MGM:
orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
reset_agent = 0;
switch(orb_fun) {
case ORB_FUN_LGI:
fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
login_res = sdev->login;
login_res->len = ntohs(login_res->len);
login_res->id = ntohs(login_res->id);
login_res->cmd_hi = ntohs(login_res->cmd_hi);
login_res->cmd_lo = ntohl(login_res->cmd_lo);
if (status_valid) {
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
__func__, sdev->bustgtlun,
login_res->len, login_res->id,
login_res->cmd_hi, login_res->cmd_lo,
ntohs(login_res->recon_hold));
END_DEBUG
sbp_busy_timeout(sdev);
} else {
/* forgot logout? */
device_printf(sdev->target->sbp->fd.dev,
"%s:%s login failed\n",
__func__, sdev->bustgtlun);
sdev->status = SBP_DEV_RESET;
}
break;
case ORB_FUN_RCN:
login_res = sdev->login;
if (status_valid) {
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
__func__, sdev->bustgtlun,
login_res->len, login_res->id,
login_res->cmd_hi, login_res->cmd_lo);
END_DEBUG
if (sdev->status == SBP_DEV_ATTACHED)
sbp_scan_dev(sdev);
else
sbp_agent_reset(sdev);
} else {
/* reconnection hold time exceed? */
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
"%s:%s reconnect failed\n",
__func__, sdev->bustgtlun);
END_DEBUG
sbp_login(sdev);
}
break;
case ORB_FUN_LGO:
sdev->status = SBP_DEV_RESET;
break;
case ORB_FUN_RST:
sbp_busy_timeout(sdev);
break;
case ORB_FUN_LUR:
case ORB_FUN_ATA:
case ORB_FUN_ATS:
sbp_agent_reset(sdev);
break;
default:
device_printf(sdev->target->sbp->fd.dev,
"%s:%s unknown function %d\n",
__func__, sdev->bustgtlun, orb_fun);
break;
}
sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
break;
case OCB_ACT_CMD:
sdev->timeout = 0;
if(ocb->ccb != NULL){
union ccb *ccb;
ccb = ocb->ccb;
if(sbp_status->len > 1){
sbp_scsi_status(sbp_status, ocb);
}else{
if(sbp_status->resp != ORB_RES_CMPL){
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
}else{
ccb->ccb_h.status = CAM_REQ_CMP;
}
}
/* fix up inq data */
if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
sbp_fix_inq_data(ocb);
SBP_LOCK(sbp);
xpt_done(ccb);
SBP_UNLOCK(sbp);
}
break;
default:
break;
}
}
if (!use_doorbell)
sbp_free_ocb(sdev, ocb);
done:
if (reset_agent)
sbp_agent_reset(sdev);
done0:
xfer->recv.pay_len = SBP_RECV_LEN;
/* The received packet is usually small enough to be stored within
* the buffer. In that case, the controller return ack_complete and
* no respose is necessary.
*
* XXX fwohci.c and firewire.c should inform event_code such as
* ack_complete or ack_pending to upper driver.
*/
#if NEED_RESPONSE
xfer->send.off = 0;
sfp = (struct fw_pkt *)xfer->send.buf;
sfp->mode.wres.dst = rfp->mode.wreqb.src;
xfer->dst = sfp->mode.wres.dst;
xfer->spd = min(sdev->target->fwdev->speed, max_speed);
xfer->hand = sbp_loginres_callback;
sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
sfp->mode.wres.tcode = FWTCODE_WRES;
sfp->mode.wres.rtcode = 0;
sfp->mode.wres.pri = 0;
fw_asyreq(xfer->fc, -1, xfer);
#else
/* recycle */
/* we don't need a lock here because bottom half is serialized */
STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
#endif
return;
}
static void
sbp_recv(struct fw_xfer *xfer)
{
int s;
s = splcam();
sbp_recv1(xfer);
splx(s);
}
/*
* sbp_attach()
*/
static int
sbp_attach(device_t dev)
{
struct sbp_softc *sbp;
struct cam_devq *devq;
struct firewire_comm *fc;
int i, s, error;
if (DFLTPHYS > SBP_MAXPHYS)
device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
"SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
SBP_MAXPHYS / 1024);
if (!firewire_phydma_enable)
device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
"for SBP over FireWire.\n");
SBP_DEBUG(0)
printf("sbp_attach (cold=%d)\n", cold);
END_DEBUG
if (cold)
sbp_cold ++;
sbp = ((struct sbp_softc *)device_get_softc(dev));
bzero(sbp, sizeof(struct sbp_softc));
sbp->fd.dev = dev;
sbp->fd.fc = fc = device_get_ivars(dev);
mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
if (max_speed < 0)
max_speed = fc->speed;
error = bus_dma_tag_create(/*parent*/fc->dmat,
/* XXX shoud be 4 for sane backend? */
/*alignment*/1,
/*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
/*maxsegsz*/SBP_SEG_MAX,
/*flags*/BUS_DMA_ALLOCNOW,
#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
/*lockfunc*/busdma_lock_mutex,
/*lockarg*/&sbp->mtx,
#endif
&sbp->dmat);
if (error != 0) {
printf("sbp_attach: Could not allocate DMA tag "
"- error %d\n", error);
return (ENOMEM);
}
devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
if (devq == NULL)
return (ENXIO);
for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
sbp->targets[i].fwdev = NULL;
sbp->targets[i].luns = NULL;
}
sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
device_get_unit(dev),
&sbp->mtx,
/*untagged*/ 1,
/*tagged*/ SBP_QUEUE_LEN - 1,
devq);
if (sbp->sim == NULL) {
cam_simq_free(devq);
return (ENXIO);
}
SBP_LOCK(sbp);
if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
goto fail;
if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path(sbp->sim));
goto fail;
}
SBP_UNLOCK(sbp);
/* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
sbp->fwb.end = sbp->fwb.start + 0xffff;
/* pre-allocate xfer */
STAILQ_INIT(&sbp->fwb.xferlist);
fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
/*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
fc, (void *)sbp, sbp_recv);
fw_bindadd(fc, &sbp->fwb);
sbp->fd.post_busreset = sbp_post_busreset;
sbp->fd.post_explore = sbp_post_explore;
if (fc->status != -1) {
s = splfw();
sbp_post_busreset((void *)sbp);
sbp_post_explore((void *)sbp);
splx(s);
}
SBP_LOCK(sbp);
xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
SBP_UNLOCK(sbp);
return (0);
fail:
SBP_UNLOCK(sbp);
cam_sim_free(sbp->sim, /*free_devq*/TRUE);
return (ENXIO);
}
static int
sbp_logout_all(struct sbp_softc *sbp)
{
struct sbp_target *target;
struct sbp_dev *sdev;
int i, j;
SBP_DEBUG(0)
printf("sbp_logout_all\n");
END_DEBUG
for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
target = &sbp->targets[i];
if (target->luns == NULL)
continue;
for (j = 0; j < target->num_lun; j++) {
sdev = target->luns[j];
if (sdev == NULL)
continue;
callout_stop(&sdev->login_callout);
if (sdev->status >= SBP_DEV_TOATTACH &&
sdev->status <= SBP_DEV_ATTACHED)
sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
}
}
return 0;
}
static int
sbp_shutdown(device_t dev)
{
struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
sbp_logout_all(sbp);
return (0);
}
static void
sbp_free_sdev(struct sbp_dev *sdev)
{
int i;
if (sdev == NULL)
return;
for (i = 0; i < SBP_QUEUE_LEN; i++)
bus_dmamap_destroy(sdev->target->sbp->dmat,
sdev->ocb[i].dmamap);
fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
free(sdev, M_SBP);
sdev = NULL;
}
static void
sbp_free_target(struct sbp_target *target)
{
struct sbp_softc *sbp;
struct fw_xfer *xfer, *next;
int i;
if (target->luns == NULL)
return;
callout_stop(&target->mgm_ocb_timeout);
sbp = target->sbp;
for (i = 0; i < target->num_lun; i++)
sbp_free_sdev(target->luns[i]);
for (xfer = STAILQ_FIRST(&target->xferlist);
xfer != NULL; xfer = next) {
next = STAILQ_NEXT(xfer, link);
fw_xfer_free_buf(xfer);
}
STAILQ_INIT(&target->xferlist);
free(target->luns, M_SBP);
target->num_lun = 0;
target->luns = NULL;
target->fwdev = NULL;
}
static int
sbp_detach(device_t dev)
{
struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
struct firewire_comm *fc = sbp->fd.fc;
int i;
SBP_DEBUG(0)
printf("sbp_detach\n");
END_DEBUG
for (i = 0; i < SBP_NUM_TARGETS; i ++)
sbp_cam_detach_target(&sbp->targets[i]);
SBP_LOCK(sbp);
xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
xpt_free_path(sbp->path);
xpt_bus_deregister(cam_sim_path(sbp->sim));
cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
SBP_UNLOCK(sbp);
sbp_logout_all(sbp);
/* XXX wait for logout completion */
pause("sbpdtc", hz/2);
for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
sbp_free_target(&sbp->targets[i]);
fw_bindremove(fc, &sbp->fwb);
fw_xferlist_remove(&sbp->fwb.xferlist);
bus_dma_tag_destroy(sbp->dmat);
mtx_destroy(&sbp->mtx);
return (0);
}
static void
sbp_cam_detach_sdev(struct sbp_dev *sdev)
{
if (sdev == NULL)
return;
if (sdev->status == SBP_DEV_DEAD)
return;
if (sdev->status == SBP_DEV_RESET)
return;
sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
if (sdev->path) {
SBP_LOCK(sdev->target->sbp);
xpt_release_devq(sdev->path,
sdev->freeze, TRUE);
sdev->freeze = 0;
xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
xpt_free_path(sdev->path);
sdev->path = NULL;
SBP_UNLOCK(sdev->target->sbp);
}
}
static void
sbp_cam_detach_target(struct sbp_target *target)
{
int i;
if (target->luns != NULL) {
SBP_DEBUG(0)
printf("sbp_detach_target %d\n", target->target_id);
END_DEBUG
callout_stop(&target->scan_callout);
for (i = 0; i < target->num_lun; i++)
sbp_cam_detach_sdev(target->luns[i]);
}
}
static void
sbp_target_reset(struct sbp_dev *sdev, int method)
{
int i;
struct sbp_target *target = sdev->target;
struct sbp_dev *tsdev;
for (i = 0; i < target->num_lun; i++) {
tsdev = target->luns[i];
if (tsdev == NULL)
continue;
if (tsdev->status == SBP_DEV_DEAD)
continue;
if (tsdev->status == SBP_DEV_RESET)
continue;
SBP_LOCK(target->sbp);
xpt_freeze_devq(tsdev->path, 1);
tsdev->freeze ++;
SBP_UNLOCK(target->sbp);
sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
if (method == 2)
tsdev->status = SBP_DEV_LOGIN;
}
switch(method) {
case 1:
printf("target reset\n");
sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
break;
case 2:
printf("reset start\n");
sbp_reset_start(sdev);
break;
}
}
static void
sbp_mgm_timeout(void *arg)
{
struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
struct sbp_dev *sdev = ocb->sdev;
struct sbp_target *target = sdev->target;
device_printf(sdev->target->sbp->fd.dev,
"%s:%s request timeout(mgm orb:0x%08x)\n",
__func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
target->mgm_ocb_cur = NULL;
sbp_free_ocb(sdev, ocb);
#if 0
/* XXX */
printf("run next request\n");
sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
#endif
device_printf(sdev->target->sbp->fd.dev,
"%s:%s reset start\n",
__func__, sdev->bustgtlun);
sbp_reset_start(sdev);
}
static void
sbp_timeout(void *arg)
{
struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
struct sbp_dev *sdev = ocb->sdev;
device_printf(sdev->target->sbp->fd.dev,
"%s:%s request timeout(cmd orb:0x%08x) ... ",
__func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
sdev->timeout ++;
switch(sdev->timeout) {
case 1:
printf("agent reset\n");
SBP_LOCK(sdev->target->sbp);
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
SBP_UNLOCK(sdev->target->sbp);
sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
sbp_agent_reset(sdev);
break;
case 2:
case 3:
sbp_target_reset(sdev, sdev->timeout - 1);
break;
#if 0
default:
/* XXX give up */
sbp_cam_detach_target(target);
if (target->luns != NULL)
free(target->luns, M_SBP);
target->num_lun = 0;
target->luns = NULL;
target->fwdev = NULL;
#endif
}
}
static void
sbp_action1(struct cam_sim *sim, union ccb *ccb)
{
struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
struct sbp_target *target = NULL;
struct sbp_dev *sdev = NULL;
/* target:lun -> sdev mapping */
if (sbp != NULL
&& ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
&& ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
target = &sbp->targets[ccb->ccb_h.target_id];
if (target->fwdev != NULL
&& ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
&& ccb->ccb_h.target_lun < target->num_lun) {
sdev = target->luns[ccb->ccb_h.target_lun];
if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
sdev->status != SBP_DEV_PROBE)
sdev = NULL;
}
}
SBP_DEBUG(1)
if (sdev == NULL)
printf("invalid target %d lun %d\n",
ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
END_DEBUG
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO:
case XPT_RESET_DEV:
case XPT_GET_TRAN_SETTINGS:
case XPT_SET_TRAN_SETTINGS:
case XPT_CALC_GEOMETRY:
if (sdev == NULL) {
SBP_DEBUG(1)
printf("%s:%d:%d:func_code 0x%04x: "
"Invalid target (target needed)\n",
device_get_nameunit(sbp->fd.dev),
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
ccb->ccb_h.func_code);
END_DEBUG
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
xpt_done(ccb);
return;
}
break;
case XPT_PATH_INQ:
case XPT_NOOP:
/* The opcodes sometimes aimed at a target (sc is valid),
* sometimes aimed at the SIM (sc is invalid and target is
* CAM_TARGET_WILDCARD)
*/
if (sbp == NULL &&
ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
SBP_DEBUG(0)
printf("%s:%d:%d func_code 0x%04x: "
"Invalid target (no wildcard)\n",
device_get_nameunit(sbp->fd.dev),
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
ccb->ccb_h.func_code);
END_DEBUG
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
xpt_done(ccb);
return;
}
break;
default:
/* XXX Hm, we should check the input parameters */
break;
}
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO:
{
struct ccb_scsiio *csio;
struct sbp_ocb *ocb;
int speed;
void *cdb;
csio = &ccb->csio;
mtx_assert(sim->mtx, MA_OWNED);
SBP_DEBUG(2)
printf("%s:%d:%d XPT_SCSI_IO: "
"cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
", flags: 0x%02x, "
"%db cmd/%db data/%db sense\n",
device_get_nameunit(sbp->fd.dev),
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
csio->cdb_io.cdb_bytes[0],
csio->cdb_io.cdb_bytes[1],
csio->cdb_io.cdb_bytes[2],
csio->cdb_io.cdb_bytes[3],
csio->cdb_io.cdb_bytes[4],
csio->cdb_io.cdb_bytes[5],
csio->cdb_io.cdb_bytes[6],
csio->cdb_io.cdb_bytes[7],
csio->cdb_io.cdb_bytes[8],
csio->cdb_io.cdb_bytes[9],
ccb->ccb_h.flags & CAM_DIR_MASK,
csio->cdb_len, csio->dxfer_len,
csio->sense_len);
END_DEBUG
if(sdev == NULL){
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
xpt_done(ccb);
return;
}
#if 0
/* if we are in probe stage, pass only probe commands */
if (sdev->status == SBP_DEV_PROBE) {
char *name;
name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
printf("probe stage, periph name: %s\n", name);
if (strcmp(name, "probe") != 0) {
ccb->ccb_h.status = CAM_REQUEUE_REQ;
xpt_done(ccb);
return;
}
}
#endif
if ((ocb = sbp_get_ocb(sdev)) == NULL) {
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
if (sdev->freeze == 0) {
SBP_LOCK(sdev->target->sbp);
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
SBP_UNLOCK(sdev->target->sbp);
}
xpt_done(ccb);
return;
}
ocb->flags = OCB_ACT_CMD;
ocb->sdev = sdev;
ocb->ccb = ccb;
ccb->ccb_h.ccb_sdev_ptr = sdev;
ocb->orb[0] = htonl(1 << 31);
ocb->orb[1] = 0;
ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
speed = min(target->fwdev->speed, max_speed);
ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
| ORB_CMD_MAXP(speed + 7));
if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
ocb->orb[4] |= htonl(ORB_CMD_IN);
}
if (csio->ccb_h.flags & CAM_SCATTER_VALID)
printf("sbp: CAM_SCATTER_VALID\n");
if (csio->ccb_h.flags & CAM_DATA_PHYS)
printf("sbp: CAM_DATA_PHYS\n");
if (csio->ccb_h.flags & CAM_CDB_POINTER)
cdb = (void *)csio->cdb_io.cdb_ptr;
else
cdb = (void *)&csio->cdb_io.cdb_bytes;
bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
/*
printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
*/
if (ccb->csio.dxfer_len > 0) {
int s, error;
s = splsoftvm();
error = bus_dmamap_load(/*dma tag*/sbp->dmat,
/*dma map*/ocb->dmamap,
ccb->csio.data_ptr,
ccb->csio.dxfer_len,
sbp_execute_ocb,
ocb,
/*flags*/0);
splx(s);
if (error)
printf("sbp: bus_dmamap_load error %d\n", error);
} else
sbp_execute_ocb(ocb, NULL, 0, 0);
break;
}
case XPT_CALC_GEOMETRY:
{
struct ccb_calc_geometry *ccg;
#if defined(__DragonFly__) || __FreeBSD_version < 501100
uint32_t size_mb;
uint32_t secs_per_cylinder;
int extended = 1;
#endif
ccg = &ccb->ccg;
if (ccg->block_size == 0) {
printf("sbp_action1: block_size is 0.\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
SBP_DEBUG(1)
printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
#if defined(__DragonFly__) || __FreeBSD_version < 500000
"Volume size = %d\n",
#else
"Volume size = %jd\n",
#endif
device_get_nameunit(sbp->fd.dev),
cam_sim_path(sbp->sim),
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
(uintmax_t)
#endif
ccg->volume_size);
END_DEBUG
#if defined(__DragonFly__) || __FreeBSD_version < 501100
size_mb = ccg->volume_size
/ ((1024L * 1024L) / ccg->block_size);
if (size_mb > 1024 && extended) {
ccg->heads = 255;
ccg->secs_per_track = 63;
} else {
ccg->heads = 64;
ccg->secs_per_track = 32;
}
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
ccb->ccb_h.status = CAM_REQ_CMP;
#else
cam_calc_geometry(ccg, /*extended*/1);
#endif
xpt_done(ccb);
break;
}
case XPT_RESET_BUS: /* Reset the specified SCSI bus */
{
SBP_DEBUG(1)
printf("%s:%d:XPT_RESET_BUS: \n",
device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
END_DEBUG
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
SBP_DEBUG(1)
printf("%s:%d:%d XPT_PATH_INQ:.\n",
device_get_nameunit(sbp->fd.dev),
ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
END_DEBUG
cpi->version_num = 1; /* XXX??? */
cpi->hba_inquiry = PI_TAG_ABLE;
cpi->target_sprt = 0;
cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
cpi->hba_eng_cnt = 0;
cpi->max_target = SBP_NUM_TARGETS - 1;
cpi->max_lun = SBP_NUM_LUNS - 1;
cpi->initiator_id = SBP_INITIATOR;
cpi->bus_id = sim->bus_id;
cpi->base_transfer_speed = 400 * 1000 / 8;
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
cpi->unit_number = sim->unit_number;
cpi->transport = XPORT_SPI; /* XX should have a FireWire */
cpi->transport_version = 2;
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
cpi->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_GET_TRAN_SETTINGS:
{
struct ccb_trans_settings *cts = &ccb->cts;
struct ccb_trans_settings_scsi *scsi =
&cts->proto_specific.scsi;
struct ccb_trans_settings_spi *spi =
&cts->xport_specific.spi;
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_SPI; /* should have a FireWire */
cts->transport_version = 2;
spi->valid = CTS_SPI_VALID_DISC;
spi->flags = CTS_SPI_FLAGS_DISC_ENB;
scsi->valid = CTS_SCSI_VALID_TQ;
scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
SBP_DEBUG(1)
printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
device_get_nameunit(sbp->fd.dev),
ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
END_DEBUG
cts->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_ABORT:
ccb->ccb_h.status = CAM_UA_ABORT;
xpt_done(ccb);
break;
case XPT_SET_TRAN_SETTINGS:
/* XXX */
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
return;
}
static void
sbp_action(struct cam_sim *sim, union ccb *ccb)
{
int s;
s = splfw();
sbp_action1(sim, ccb);
splx(s);
}
static void
sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
{
int i;
struct sbp_ocb *ocb;
struct sbp_ocb *prev;
bus_dma_segment_t *s;
if (error)
printf("sbp_execute_ocb: error=%d\n", error);
ocb = (struct sbp_ocb *)arg;
SBP_DEBUG(2)
printf("sbp_execute_ocb: seg %d", seg);
for (i = 0; i < seg; i++)
#if defined(__DragonFly__) || __FreeBSD_version < 500000
printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
#else
printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
(uintmax_t)segments[i].ds_len);
#endif
printf("\n");
END_DEBUG
if (seg == 1) {
/* direct pointer */
s = &segments[0];
if (s->ds_len > SBP_SEG_MAX)
panic("ds_len > SBP_SEG_MAX, fix busdma code");
ocb->orb[3] = htonl(s->ds_addr);
ocb->orb[4] |= htonl(s->ds_len);
} else if(seg > 1) {
/* page table */
for (i = 0; i < seg; i++) {
s = &segments[i];
SBP_DEBUG(0)
/* XXX LSI Logic "< 16 byte" bug might be hit */
if (s->ds_len < 16)
printf("sbp_execute_ocb: warning, "
#if defined(__DragonFly__) || __FreeBSD_version < 500000
"segment length(%d) is less than 16."
#else
"segment length(%zd) is less than 16."
#endif
"(seg=%d/%d)\n", (size_t)s->ds_len, i+1, seg);
END_DEBUG
if (s->ds_len > SBP_SEG_MAX)
panic("ds_len > SBP_SEG_MAX, fix busdma code");
ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
ocb->ind_ptr[i].lo = htonl(s->ds_addr);
}
ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
}
if (seg > 0)
bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
(ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
prev = sbp_enqueue_ocb(ocb->sdev, ocb);
fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
if (use_doorbell) {
if (prev == NULL) {
if (ocb->sdev->last_ocb != NULL)
sbp_doorbell(ocb->sdev);
else
sbp_orb_pointer(ocb->sdev, ocb);
}
} else {
if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
ocb->sdev->flags &= ~ORB_LINK_DEAD;
sbp_orb_pointer(ocb->sdev, ocb);
}
}
}
static void
sbp_poll(struct cam_sim *sim)
{
struct sbp_softc *sbp;
struct firewire_comm *fc;
sbp = (struct sbp_softc *)sim->softc;
fc = sbp->fd.fc;
fc->poll(fc, 0, -1);
return;
}
static struct sbp_ocb *
sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
{
struct sbp_ocb *ocb;
struct sbp_ocb *next;
int s = splfw(), order = 0;
int flags;
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
#if defined(__DragonFly__) || __FreeBSD_version < 500000
"%s:%s 0x%08lx src %d\n",
#else
"%s:%s 0x%08x src %d\n",
#endif
__func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
END_DEBUG
SBP_LOCK(sdev->target->sbp);
for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
next = STAILQ_NEXT(ocb, ocb);
flags = ocb->flags;
if (OCB_MATCH(ocb, sbp_status)) {
/* found */
STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
if (ocb->ccb != NULL)
untimeout(sbp_timeout, (caddr_t)ocb,
ocb->ccb->ccb_h.timeout_ch);
if (ntohl(ocb->orb[4]) & 0xffff) {
bus_dmamap_sync(sdev->target->sbp->dmat,
ocb->dmamap,
(ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
BUS_DMASYNC_POSTREAD :
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sdev->target->sbp->dmat,
ocb->dmamap);
}
if (!use_doorbell) {
if (sbp_status->src == SRC_NO_NEXT) {
if (next != NULL)
sbp_orb_pointer(sdev, next);
else if (order > 0) {
/*
* Unordered execution
* We need to send pointer for
* next ORB
*/
sdev->flags |= ORB_LINK_DEAD;
}
}
} else {
/*
* XXX this is not correct for unordered
* execution.
*/
if (sdev->last_ocb != NULL) {
SBP_UNLOCK(sdev->target->sbp);
sbp_free_ocb(sdev, sdev->last_ocb);
SBP_LOCK(sdev->target->sbp);
}
sdev->last_ocb = ocb;
if (next != NULL &&
sbp_status->src == SRC_NO_NEXT)
sbp_doorbell(sdev);
}
break;
} else
order ++;
}
SBP_UNLOCK(sdev->target->sbp);
splx(s);
SBP_DEBUG(0)
if (ocb && order > 0) {
device_printf(sdev->target->sbp->fd.dev,
"%s:%s unordered execution order:%d\n",
__func__, sdev->bustgtlun, order);
}
END_DEBUG
return (ocb);
}
static struct sbp_ocb *
sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
{
int s = splfw();
struct sbp_ocb *prev, *prev2;
mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
SBP_DEBUG(1)
device_printf(sdev->target->sbp->fd.dev,
#if defined(__DragonFly__) || __FreeBSD_version < 500000
"%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
#else
"%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
#endif
END_DEBUG
prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
if (ocb->ccb != NULL)
ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
(ocb->ccb->ccb_h.timeout * hz) / 1000);
if (use_doorbell && prev == NULL)
prev2 = sdev->last_ocb;
if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
SBP_DEBUG(1)
#if defined(__DragonFly__) || __FreeBSD_version < 500000
printf("linking chain 0x%x -> 0x%x\n",
prev2->bus_addr, ocb->bus_addr);
#else
printf("linking chain 0x%jx -> 0x%jx\n",
(uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
#endif
END_DEBUG
/*
* Suppress compiler optimization so that orb[1] must be written first.
* XXX We may need an explicit memory barrier for other architectures
* other than i386/amd64.
*/
*(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
*(volatile uint32_t *)&prev2->orb[0] = 0;
}
splx(s);
return prev;
}
static struct sbp_ocb *
sbp_get_ocb(struct sbp_dev *sdev)
{
struct sbp_ocb *ocb;
int s = splfw();
mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
ocb = STAILQ_FIRST(&sdev->free_ocbs);
if (ocb == NULL) {
sdev->flags |= ORB_SHORTAGE;
printf("ocb shortage!!!\n");
splx(s);
return NULL;
}
STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
splx(s);
ocb->ccb = NULL;
return (ocb);
}
static void
sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
{
ocb->flags = 0;
ocb->ccb = NULL;
SBP_LOCK(sdev->target->sbp);
STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
if ((sdev->flags & ORB_SHORTAGE) != 0) {
int count;
sdev->flags &= ~ORB_SHORTAGE;
count = sdev->freeze;
sdev->freeze = 0;
xpt_release_devq(sdev->path, count, TRUE);
}
SBP_UNLOCK(sdev->target->sbp);
}
static void
sbp_abort_ocb(struct sbp_ocb *ocb, int status)
{
struct sbp_dev *sdev;
sdev = ocb->sdev;
SBP_DEBUG(0)
device_printf(sdev->target->sbp->fd.dev,
#if defined(__DragonFly__) || __FreeBSD_version < 500000
"%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
#else
"%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
#endif
END_DEBUG
SBP_DEBUG(1)
if (ocb->ccb != NULL)
sbp_print_scsi_cmd(ocb);
END_DEBUG
if (ntohl(ocb->orb[4]) & 0xffff) {
bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
(ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
}
if (ocb->ccb != NULL) {
untimeout(sbp_timeout, (caddr_t)ocb,
ocb->ccb->ccb_h.timeout_ch);
ocb->ccb->ccb_h.status = status;
SBP_LOCK(sdev->target->sbp);
xpt_done(ocb->ccb);
SBP_UNLOCK(sdev->target->sbp);
}
sbp_free_ocb(sdev, ocb);
}
static void
sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
{
int s;
struct sbp_ocb *ocb, *next;
STAILQ_HEAD(, sbp_ocb) temp;
s = splfw();
STAILQ_INIT(&temp);
SBP_LOCK(sdev->target->sbp);
STAILQ_CONCAT(&temp, &sdev->ocbs);
STAILQ_INIT(&sdev->ocbs);
SBP_UNLOCK(sdev->target->sbp);
for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
next = STAILQ_NEXT(ocb, ocb);
sbp_abort_ocb(ocb, status);
}
if (sdev->last_ocb != NULL) {
sbp_free_ocb(sdev, sdev->last_ocb);
sdev->last_ocb = NULL;
}
splx(s);
}
static devclass_t sbp_devclass;
static device_method_t sbp_methods[] = {
/* device interface */
DEVMETHOD(device_identify, sbp_identify),
DEVMETHOD(device_probe, sbp_probe),
DEVMETHOD(device_attach, sbp_attach),
DEVMETHOD(device_detach, sbp_detach),
DEVMETHOD(device_shutdown, sbp_shutdown),
{ 0, 0 }
};
static driver_t sbp_driver = {
"sbp",
sbp_methods,
sizeof(struct sbp_softc),
};
#ifdef __DragonFly__
DECLARE_DUMMY_MODULE(sbp);
#endif
DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
MODULE_VERSION(sbp, 1);
MODULE_DEPEND(sbp, firewire, 1, 1, 1);
MODULE_DEPEND(sbp, cam, 1, 1, 1);