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freebsd-nq/sys/dev/firewire/sbp.c
Hidetoshi Shimokawa 050871cc4f Panic if bus_dmamap_load() doesn't respect maxsegsz.
2003-04-14 14:17:49 +00:00

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/*
* Copyright (c) 1998,1999,2000,2001 Katsushi Kobayashi and Hidetosh 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.
*
* $FreeBSD$
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/mbuf.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <sys/malloc.h>
#if __FreeBSD_version < 500106
#include <sys/devicestat.h> /* for struct devstat */
#endif
#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 <cam/scsi/scsi_message.h>
#include <cam/scsi/scsi_da.h>
#include <sys/kernel.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/iec13213.h>
#define ccb_sdev_ptr spriv_ptr0
#define ccb_sbp_ptr spriv_ptr1
#define SBP_NUM_TARGETS 8 /* MAX 64 */
#define SBP_NUM_LUNS 8 /* limited by CAM_SCSI2_MAXLUN in cam_xpt.c */
#define SBP_QUEUE_LEN 4
#define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
#define SBP_INITIATOR 7
#define LOGIN_DELAY 2
/*
* STATUS FIFO addressing
* bit
* -----------------------
* 0- 1( 2): 0 (alingment)
* 2- 7( 6): target
* 8-15( 8): lun
* 16-23( 8): unit
* 24-31( 8): reserved
* 32-47(16): SBP_BIND_HI
* 48-64(16): bus_id, node_id
*/
#define SBP_BIND_HI 0x1
#define SBP_DEV2ADDR(u, t, l) \
((((u) & 0xff) << 16) | (((l) & 0xff) << 8) | (((t) & 0x3f) << 2))
#define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
#define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
#define ORB_NOTIFY (1 << 31)
#define ORB_FMT_STD (0 << 29)
#define ORB_FMT_VED (2 << 29)
#define ORB_FMT_NOP (3 << 29)
#define ORB_FMT_MSK (3 << 29)
#define ORB_EXV (1 << 28)
/* */
#define ORB_CMD_IN (1 << 27)
/* */
#define ORB_CMD_SPD(x) ((x) << 24)
#define ORB_CMD_MAXP(x) ((x) << 20)
#define ORB_RCN_TMO(x) ((x) << 20)
#define ORB_CMD_PTBL (1 << 19)
#define ORB_CMD_PSZ(x) ((x) << 16)
#define ORB_FUN_LGI (0 << 16)
#define ORB_FUN_QLG (1 << 16)
#define ORB_FUN_RCN (3 << 16)
#define ORB_FUN_LGO (7 << 16)
#define ORB_FUN_ATA (0xb << 16)
#define ORB_FUN_ATS (0xc << 16)
#define ORB_FUN_LUR (0xe << 16)
#define ORB_FUN_RST (0xf << 16)
#define ORB_FUN_MSK (0xf << 16)
#define ORB_FUN_RUNQUEUE 0xffff
static char *orb_fun_name[] = {
/* 0 */ "LOGIN",
/* 1 */ "QUERY LOGINS",
/* 2 */ "Reserved",
/* 3 */ "RECONNECT",
/* 4 */ "SET PASSWORD",
/* 5 */ "Reserved",
/* 6 */ "Reserved",
/* 7 */ "LOGOUT",
/* 8 */ "Reserved",
/* 9 */ "Reserved",
/* A */ "Reserved",
/* B */ "ABORT TASK",
/* C */ "ABORT TASK SET",
/* D */ "Reserved",
/* E */ "LOGICAL UNIT RESET",
/* F */ "TARGET RESET"
};
#define ORB_RES_CMPL 0
#define ORB_RES_FAIL 1
#define ORB_RES_ILLE 2
#define ORB_RES_VEND 3
static int debug = 0;
static int auto_login = 1;
static int max_speed = 2;
static int sbp_cold = 1;
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");
#define SBP_DEBUG(x) if (debug > x) {
#define END_DEBUG }
#define NEED_RESPONSE 0
struct ind_ptr {
u_int32_t hi,lo;
};
#define SBP_IND_MAX 0x20
struct sbp_ocb {
STAILQ_ENTRY(sbp_ocb) ocb;
union ccb *ccb;
volatile u_int32_t orb[8];
volatile struct ind_ptr ind_ptr[SBP_IND_MAX];
struct sbp_dev *sdev;
int flags;
bus_dmamap_t dmamap;
};
#define OCB_ACT_MGM 0
#define OCB_ACT_CMD 1
#define OCB_MATCH(o,s) (vtophys(&(o)->orb[0]) == ntohl((s)->orb_lo))
struct sbp_login_res{
u_int16_t len;
u_int16_t id;
u_int16_t res0;
u_int16_t cmd_hi;
u_int32_t cmd_lo;
u_int16_t res1;
u_int16_t recon_hold;
};
struct sbp_status{
u_int8_t len:3,
dead:1,
resp:2,
src:2;
u_int8_t status:8;
u_int16_t orb_hi;
u_int32_t orb_lo;
u_int32_t data[6];
};
struct sbp_cmd_status{
#define SBP_SFMT_CURR 0
#define SBP_SFMT_DEFER 1
u_int8_t status:6,
sfmt:2;
u_int8_t s_key:4,
ill_len:1,
eom:1,
mark:1,
valid:1;
u_int8_t s_code;
u_int8_t s_qlfr;
u_int32_t info;
u_int32_t cdb;
u_int32_t fru:8,
s_keydep:24;
u_int32_t vend[2];
};
struct sbp_dev{
#define SBP_DEV_RESET 0 /* accept login */
#if 0
#define SBP_DEV_LOGIN 1 /* to login */
#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 */
u_int8_t status:4,
#define SBP_DEV_TIMEOUT 1
flags:4;
u_int8_t type;
u_int16_t lun_id;
int freeze;
struct cam_path *path;
struct sbp_target *target;
struct sbp_login_res login;
struct callout login_callout;
STAILQ_HEAD(, sbp_ocb) ocbs;
char vendor[32];
char product[32];
char revision[10];
};
struct sbp_target {
int target_id;
int num_lun;
struct sbp_dev *luns;
struct sbp_softc *sbp;
struct fw_device *fwdev;
u_int32_t mgm_hi, mgm_lo;
struct sbp_ocb *mgm_ocb_cur;
STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
struct callout mgm_ocb_timeout;
#define SCAN_DELAY 2
struct callout scan_callout;
};
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;
STAILQ_HEAD(, sbp_ocb) free_ocbs;
struct sbp_ocb *ocb;
bus_dma_tag_t dmat;
#define SBP_RESOURCE_SHORTAGE 0x10
unsigned char flags;
};
static void sbp_post_explore __P((void *));
static void sbp_recv __P((struct fw_xfer *));
static void sbp_login_callback __P((struct fw_xfer *));
static void sbp_cmd_callback __P((struct fw_xfer *));
static void sbp_orb_pointer __P((struct sbp_dev *, struct sbp_ocb *));
static void sbp_execute_ocb __P((void *, bus_dma_segment_t *, int, int));
static void sbp_free_ocb __P((struct sbp_softc *, struct sbp_ocb *));
static void sbp_abort_ocb __P((struct sbp_ocb *, int));
static void sbp_abort_all_ocbs __P((struct sbp_dev *, int));
static struct fw_xfer * sbp_write_cmd __P((struct sbp_dev *, int, int));
static struct sbp_ocb * sbp_get_ocb __P((struct sbp_softc *));
static struct sbp_ocb * sbp_enqueue_ocb __P((struct sbp_dev *, struct sbp_ocb *));
static struct sbp_ocb * sbp_dequeue_ocb __P((struct sbp_dev *, struct sbp_status *));
static void sbp_cam_detach_target __P((struct sbp_target *));
static void sbp_timeout __P((void *arg));
static void sbp_mgm_orb __P((struct sbp_dev *, int, struct sbp_ocb *));
#define sbp_login(sdev) \
callout_reset(&(sdev)->login_callout, LOGIN_DELAY * hz, \
sbp_login_callout, (void *)(sdev));
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)
{
device_t child;
SBP_DEBUG(0)
printf("sbp_identify\n");
END_DEBUG
child = 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, "SBP2/SCSI over firewire");
if (bootverbose)
debug = bootverbose;
return (0);
}
static void
sbp_show_sdev_info(struct sbp_dev *sdev, int new)
{
struct fw_device *fwdev;
printf("%s:%d:%d ",
device_get_nameunit(sdev->target->sbp->fd.dev),
sdev->target->target_id,
sdev->lun_id
);
if (new == 2) {
return;
}
fwdev = sdev->target->fwdev;
printf("ordered:%d type:%d EUI:%08x%08x node:%d "
"speed:%d maxrec:%d",
(sdev->type & 0x40) >> 6,
(sdev->type & 0x1f),
fwdev->eui.hi,
fwdev->eui.lo,
fwdev->dst,
fwdev->speed,
fwdev->maxrec
);
if (new)
printf(" new!\n");
else
printf("\n");
sbp_show_sdev_info(sdev, 2);
printf("'%s' '%s' '%s'\n", 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 struct sbp_target *
sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
{
int i, maxlun, lun;
struct sbp_target *target;
struct sbp_dev *sdev;
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 */
if((target->mgm_lo = getcsrdata(fwdev, 0x54)) == 0 ){
/* bad target */
printf("NULL management address\n");
target->fwdev = NULL;
return NULL;
}
target->mgm_hi = 0xffff;
target->mgm_lo = 0xf0000000 | target->mgm_lo << 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->mgm_ocb_queue);
CALLOUT_INIT(&target->mgm_ocb_timeout);
CALLOUT_INIT(&target->scan_callout);
/* XXX num_lun may be changed. realloc luns? */
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("no lun found!\n");
if (maxlun >= SBP_NUM_LUNS)
maxlun = SBP_NUM_LUNS;
target->num_lun = maxlun + 1;
target->luns = (struct sbp_dev *) malloc(
sizeof(struct sbp_dev) * target->num_lun,
M_SBP, M_NOWAIT | M_ZERO);
for (i = 0; i < target->num_lun; i++) {
sdev = &target->luns[i];
sdev->lun_id = i;
sdev->target = target;
STAILQ_INIT(&sdev->ocbs);
CALLOUT_INIT(&sdev->login_callout);
sdev->status = SBP_DEV_DEAD;
}
crom_init_context(&cc, target->fwdev->csrrom);
while (cc.depth >= 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);
continue;
}
target->luns[lun].status = SBP_DEV_RESET;
target->luns[lun].type = (reg->val & 0xf0000) >> 16;
crom_next(&cc);
}
return target;
}
static void
sbp_get_text_leaf(struct fw_device *fwdev, int key, char *buf, int len)
{
static char *nullstr = "(null)";
int i, clen, found=0;
struct csrhdr *chdr;
struct csrreg *creg;
u_int32_t *src, *dst;
chdr = (struct csrhdr *)&fwdev->csrrom[0];
/* skip crom header, bus info and root directory */
creg = (struct csrreg *)chdr + chdr->info_len + 2;
/* search unitl the one before the last. */
for (i = chdr->info_len + 2; i < fwdev->rommax / 4; i++) {
if((creg++)->key == key){
found = 1;
break;
}
}
if (!found || creg->key != CROM_TEXTLEAF) {
strncpy(buf, nullstr, len);
return;
}
src = (u_int32_t *) creg + creg->val;
clen = ((*src >> 16) - 2) * 4;
src += 3;
dst = (u_int32_t *) buf;
if (len < clen)
clen = len;
for (i = 0; i < clen/4; i++)
*dst++ = htonl(*src++);
buf[clen] = 0;
}
static void
sbp_probe_lun(struct sbp_dev *sdev)
{
struct fw_device *fwdev;
int rev;
fwdev = sdev->target->fwdev;
bzero(sdev->vendor, sizeof(sdev->vendor));
bzero(sdev->product, sizeof(sdev->product));
sbp_get_text_leaf(fwdev, 0x03, sdev->vendor, sizeof(sdev->vendor));
sbp_get_text_leaf(fwdev, 0x17, sdev->product, sizeof(sdev->product));
rev = getcsrdata(sdev->target->fwdev, 0x3c);
snprintf(sdev->revision, sizeof(sdev->revision), "%06x", rev);
}
static void
sbp_login_callout(void *arg)
{
struct sbp_dev *sdev = (struct sbp_dev *)arg;
sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
}
#define SBP_FWDEV_ALIVE(fwdev) \
((fwdev->status == FWDEVATTACHED) \
&& (getcsrdata(fwdev, CSRKEY_SPEC) == CSRVAL_ANSIT10) \
&& (getcsrdata(fwdev, CSRKEY_VER) == CSRVAL_T10SBP2))
static void
sbp_probe_target(void *arg)
{
struct sbp_target *target = (struct sbp_target *)arg;
struct sbp_softc *sbp;
struct sbp_dev *sdev;
struct firewire_comm *fc;
int i, alive;
alive = SBP_FWDEV_ALIVE(target->fwdev);
SBP_DEBUG(1)
printf("sbp_probe_target %d\n", target->target_id);
if (!alive)
printf("not alive\n");
END_DEBUG
sbp = target->sbp;
fc = target->sbp->fd.fc;
/* XXX untimeout mgm_ocb and dequeue */
for (i=0; i < target->num_lun; i++) {
sdev = &target->luns[i];
if (alive && (sdev->status != SBP_DEV_DEAD)) {
if (sdev->path != NULL) {
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
}
sbp_probe_lun(sdev);
SBP_DEBUG(0)
sbp_show_sdev_info(sdev,
#if 0
(sdev->status == SBP_DEV_TOATTACH));
#else
(sdev->status == SBP_DEV_RESET));
#endif
END_DEBUG
sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
switch (sdev->status) {
case SBP_DEV_RESET:
/* new or revived target */
if (auto_login) {
#if 0
sdev->status = SBP_DEV_TOATTACH;
#endif
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 */
sbp_show_sdev_info(sdev, 2);
printf("lost target\n");
END_DEBUG
if (sdev->path) {
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
}
sdev->status = SBP_DEV_RETRY;
sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
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_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
#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
if (sbp_cold > 0)
sbp_cold --;
/* Gabage 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);
if (target->luns != NULL)
free(target->luns, M_SBP);
target->num_lun = 0;;
target->luns = NULL;
target->fwdev = NULL;
}
}
/* traverse device list */
STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
SBP_DEBUG(0)
printf("sbp_post_explore: EUI:%08x%08x ",
fwdev->eui.hi, fwdev->eui.lo);
if (fwdev->status == FWDEVATTACHED) {
printf("spec=%d key=%d.\n",
getcsrdata(fwdev, CSRKEY_SPEC) == CSRVAL_ANSIT10,
getcsrdata(fwdev, CSRKEY_VER) == CSRVAL_T10SBP2);
} else {
printf("not attached, state=%d.\n", 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 0
timeout(sbp_release_queue, (caddr_t)sbp, bus_reset_rest * hz / 1000);
#endif
}
#if NEED_RESPONSE
static void
sbp_loginres_callback(struct fw_xfer *xfer){
SBP_DEBUG(1)
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
sbp_show_sdev_info(sdev, 2);
printf("sbp_loginres_callback\n");
END_DEBUG
fw_xfer_free(xfer);
return;
}
#endif
static void
sbp_login_callback(struct fw_xfer *xfer)
{
SBP_DEBUG(1)
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
sbp_show_sdev_info(sdev, 2);
printf("sbp_login_callback\n");
END_DEBUG
fw_xfer_free(xfer);
return;
}
static void
sbp_cmd_callback(struct fw_xfer *xfer)
{
SBP_DEBUG(2)
struct sbp_dev *sdev;
sdev = (struct sbp_dev *)xfer->sc;
sbp_show_sdev_info(sdev, 2);
printf("sbp_cmd_callback\n");
END_DEBUG
fw_xfer_free(xfer);
return;
}
static struct sbp_dev *
sbp_next_dev(struct sbp_target *target, int lun)
{
struct sbp_dev *sdev;
int i;
for (i = lun, sdev = &target->luns[lun];
i < target->num_lun; i++, sdev++) {
if (sdev->status == SBP_DEV_PROBE)
break;
}
if (i >= target->num_lun)
return(NULL);
return(sdev);
}
#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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_cam_scan_lun\n");
END_DEBUG
if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
sdev->status = SBP_DEV_ATTACHED;
} else {
sbp_show_sdev_info(sdev, 2);
printf("scan failed\n");
}
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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_cam_scan_target\n");
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. */
xpt_action(ccb);
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 1;
}
#if 0
static void
sbp_ping_unit_callback(struct cam_periph *periph, union ccb *ccb)
{
struct sbp_dev *sdev;
sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("sbp_ping_unit_callback\n");
END_DEBUG
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if (--ccb->ccb_h.retry_count == 0) {
sbp_show_sdev_info(sdev, 2);
printf("sbp_ping_unit_callback: "
"retry count exceeded\n");
sdev->status = SBP_DEV_RETRY;
free(ccb, M_SBP);
} else {
/* requeue */
xpt_action(ccb);
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 1; /* we will freeze */
}
} else {
free(ccb->csio.data_ptr, M_SBP);
free(ccb, M_SBP);
sdev->status = SBP_DEV_ATTACHED;
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 0;
}
}
/*
* XXX Some devices need to execute inquiry or read_capacity
* after bus_rest during busy transfer.
* Otherwise they return incorrect result for READ(and WRITE?)
* command without any SBP-II/SCSI error.
*
* e.g. Maxtor 3000XT, Yano A-dish.
*/
static void
sbp_ping_unit(struct sbp_dev *sdev)
{
union ccb *ccb;
struct scsi_inquiry_data *inq_buf;
ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
if (ccb == NULL) {
printf("sbp_ping_unit: malloc failed\n");
return;
}
inq_buf = (struct scsi_inquiry_data *)
malloc(sizeof(*inq_buf), M_SBP, M_NOWAIT);
if (inq_buf == NULL) {
free(ccb, M_SBP);
printf("sbp_ping_unit: malloc failed\n");
return;
}
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("sbp_ping_unit\n");
END_DEBUG
/*
* We need to execute this command before any other queued command.
* Make priority 0 and freeze the queue after execution for retry.
* cam's scan_lun command doesn't provide this feature.
*/
xpt_setup_ccb(&ccb->ccb_h, sdev->path, 0/*priority (high)*/);
scsi_inquiry(
&ccb->csio,
/*retries*/ 5,
sbp_ping_unit_callback,
MSG_SIMPLE_Q_TAG,
(u_int8_t *)inq_buf,
SHORT_INQUIRY_LENGTH,
/*evpd*/FALSE,
/*page_code*/0,
SSD_MIN_SIZE,
/*timeout*/60000
);
ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
ccb->ccb_h.ccb_sdev_ptr = sdev;
xpt_action(ccb);
if (sdev->status != SBP_DEV_ATTACHED)
sdev->status = SBP_DEV_PROBE;
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 1; /* We will freeze the queue */
}
#endif
static __inline void
sbp_scan_dev(struct sbp_dev *sdev)
{
sdev->status = SBP_DEV_PROBE;
callout_reset(&sdev->target->scan_callout, SCAN_DELAY * hz,
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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_do_attach\n");
END_DEBUG
fw_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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_cmd_callback\n");
END_DEBUG
fw_xfer_free(xfer);
if (sdev->path) {
xpt_release_devq(sdev->path, sdev->freeze, TRUE);
sdev->freeze = 0;
}
}
static void
sbp_agent_reset(struct sbp_dev *sdev)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("sbp_agent_reset\n");
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
if (xfer == NULL)
return;
if (sdev->status == SBP_DEV_ATTACHED)
xfer->act.hand = sbp_agent_reset_callback;
else
xfer->act.hand = sbp_do_attach;
fp = (struct fw_pkt *)xfer->send.buf;
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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_busy_timeout_callback\n");
END_DEBUG
fw_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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_busy_timeout\n");
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
xfer->act.hand = sbp_busy_timeout_callback;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wreqq.dest_hi = htons(0xffff);
fp->mode.wreqq.dest_lo = htonl(0xf0000000 | BUSY_TIMEOUT);
fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
fw_asyreq(xfer->fc, -1, xfer);
}
#if 0
static void
sbp_reset_start(struct sbp_dev *sdev)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("sbp_reset_start\n");
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
xfer->act.hand = sbp_busy_timeout;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wreqq.dest_hi = htons(0xffff);
fp->mode.wreqq.dest_lo = htonl(0xf0000000 | RESET_START);
fp->mode.wreqq.data = htonl(0xf);
fw_asyreq(xfer->fc, -1, xfer);
}
#endif
static void
sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(2)
sbp_show_sdev_info(sdev, 2);
printf("sbp_orb_pointer\n");
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
if (xfer == NULL)
return;
xfer->act.hand = sbp_cmd_callback;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wreqb.len = htons(8);
fp->mode.wreqb.extcode = 0;
fp->mode.wreqb.payload[0] =
htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
fp->mode.wreqb.payload[1] = htonl(vtophys(&ocb->orb[0]));
if(fw_asyreq(xfer->fc, -1, xfer) != 0){
fw_xfer_free(xfer);
ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ocb->ccb);
}
}
#if 0
static void
sbp_doorbell(struct sbp_dev *sdev)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
SBP_DEBUG(1)
sbp_show_sdev_info(sdev, 2);
printf("sbp_doorbell\n");
END_DEBUG
xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
if (xfer == NULL)
return;
xfer->act.hand = sbp_cmd_callback;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wreqq.data = htonl(0xf);
fw_asyreq(xfer->fc, -1, xfer);
}
#endif
static struct fw_xfer *
sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fw_xfer_alloc(M_SBP);
if(xfer == NULL){
return NULL;
}
if (tcode == FWTCODE_WREQQ)
xfer->send.len = 16;
else
xfer->send.len = 24;
xfer->send.buf = malloc(xfer->send.len, M_FW, M_NOWAIT);
if(xfer->send.buf == NULL){
fw_xfer_free(xfer);
return NULL;
}
xfer->send.off = 0;
xfer->spd = min(sdev->target->fwdev->speed, max_speed);
xfer->sc = (caddr_t)sdev;
xfer->fc = sdev->target->sbp->fd.fc;
xfer->retry_req = fw_asybusy;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wreqq.dest_hi = htons(sdev->login.cmd_hi);
fp->mode.wreqq.dest_lo = htonl(sdev->login.cmd_lo + offset);
fp->mode.wreqq.tlrt = 0;
fp->mode.wreqq.tcode = tcode;
fp->mode.wreqq.pri = 0;
xfer->dst = FWLOCALBUS | sdev->target->fwdev->dst;
fp->mode.wreqq.dst = htons(xfer->dst);
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();
if (func == ORB_FUN_RUNQUEUE) {
ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
if (target->mgm_ocb_cur != NULL || ocb == NULL) {
splx(s);
return;
}
STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
goto start;
}
if ((ocb = sbp_get_ocb(target->sbp)) == NULL) {
target->sbp->flags |= SBP_RESOURCE_SHORTAGE;
splx(s);
return;
}
ocb->flags = OCB_ACT_MGM;
ocb->sdev = sdev;
bzero((void *)(uintptr_t)(volatile void *)ocb->orb, sizeof(ocb->orb));
ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
ocb->orb[7] = htonl(SBP_DEV2ADDR(
device_get_unit(target->sbp->fd.dev),
target->target_id,
sdev->lun_id));
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("%s\n", orb_fun_name[(func>>16)&0xf]);
END_DEBUG
switch (func) {
case ORB_FUN_LGI:
ocb->orb[2] = htonl(nid << 16);
ocb->orb[3] = htonl(vtophys(&sdev->login));
ocb->orb[4] = htonl(ORB_NOTIFY | ORB_EXV | sdev->lun_id);
ocb->orb[5] = htonl(sizeof(struct sbp_login_res));
break;
case ORB_FUN_ATA:
ocb->orb[0] = htonl((0 << 16) | 0);
ocb->orb[1] = htonl(vtophys(&aocb->orb[0]));
/* 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 */
STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
splx(s);
return;
}
start:
target->mgm_ocb_cur = ocb;
splx(s);
callout_reset(&target->mgm_ocb_timeout, 5*hz,
sbp_timeout, (caddr_t)ocb);
xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
if(xfer == NULL){
return;
}
xfer->act.hand = sbp_login_callback;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wreqb.dest_hi = htons(sdev->target->mgm_hi);
fp->mode.wreqb.dest_lo = htonl(sdev->target->mgm_lo);
fp->mode.wreqb.len = htons(8);
fp->mode.wreqb.extcode = 0;
fp->mode.wreqb.payload[0] = htonl(nid << 16);
fp->mode.wreqb.payload[1] = htonl(vtophys(&ocb->orb[0]));
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 *sense;
sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
sense = &ocb->ccb->csio.sense_data;
SBP_DEBUG(0)
sbp_print_scsi_cmd(ocb);
/* XXX need decode status */
sbp_show_sdev_info(ocb->sdev, 2);
printf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d",
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
);
#if 0 /* XXX */
if (sbp_cmd_status->status == SCSI_STATUS_CHECK_COND) {
printf(" %s\n", scsi_sense_key_text[sbp_cmd_status->s_key]);
scsi_sense_desc(
sbp_cmd_status->s_code,
sbp_cmd_status->s_qlfr,
ocb->ccb->ccb_h.path->device->inq_data
)
} else {
printf("\n");
}
#else
printf("\n");
#endif
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;
sense->info[0] = ntohl(sbp_cmd_status->info) & 0xff;
sense->info[1] =(ntohl(sbp_cmd_status->info) >> 8) & 0xff;
sense->info[2] =(ntohl(sbp_cmd_status->info) >> 16) & 0xff;
sense->info[3] =(ntohl(sbp_cmd_status->info) >> 24) & 0xff;
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;
sense->cmd_spec_info[0] = ntohl(sbp_cmd_status->cdb) & 0xff;
sense->cmd_spec_info[1] = (ntohl(sbp_cmd_status->cdb) >> 8) & 0xff;
sense->cmd_spec_info[2] = (ntohl(sbp_cmd_status->cdb) >> 16) & 0xff;
sense->cmd_spec_info[3] = (ntohl(sbp_cmd_status->cdb) >> 24) & 0xff;
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;
sense->sense_key_spec[0] = ntohl(sbp_cmd_status->s_keydep) & 0xff;
sense->sense_key_spec[1] = (ntohl(sbp_cmd_status->s_keydep) >>8) & 0xff;
sense->sense_key_spec[2] = (ntohl(sbp_cmd_status->s_keydep) >>16) & 0xff;
ocb->ccb->csio.scsi_status = sbp_cmd_status->status;;
ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
| CAM_AUTOSNS_VALID;
/*
{
u_int8_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:
sbp_show_sdev_info(ocb->sdev, 2);
printf("sbp_scsi_status: unknown scsi status 0x%x\n",
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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_fix_inq_data\n");
END_DEBUG
inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
switch (SID_TYPE(inq)) {
case T_DIRECT:
/*
* XXX Convert Direct Access device to RBC.
* I've never seen FireWire DA devices which support READ_6.
*/
#if 1
if (SID_TYPE(inq) == T_DIRECT)
inq->device |= T_RBC; /* T_DIRECT == 0 */
#endif
/* fall through */
case T_RBC:
/* enable tag queuing */
#if 1
inq->flags |= SID_CmdQue;
#endif
/*
* 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;
}
}
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;
u_int32_t addr;
/*
u_int32_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]));
*/
if(xfer->resp != 0){
printf("sbp_recv: xfer->resp != 0\n");
fw_xfer_free( xfer);
return;
}
if(xfer->recv.buf == NULL){
printf("sbp_recv: xfer->recv.buf == NULL\n");
fw_xfer_free( xfer);
return;
}
sbp = (struct sbp_softc *)xfer->sc;
rfp = (struct fw_pkt *)xfer->recv.buf;
if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
fw_xfer_free( xfer);
return;
}
sbp_status = (struct sbp_status *)rfp->mode.wreqb.payload;
addr = ntohl(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);
fw_xfer_free(xfer);
return;
}
target = &sbp->targets[t];
l = SBP_ADDR2LUN(addr);
if (l >= target->num_lun) {
device_printf(sbp->fd.dev,
"sbp_recv1: invalid lun %d (target=%d)\n", l, t);
fw_xfer_free(xfer);
return;
}
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) {
sbp_show_sdev_info(sdev, 2);
#if __FreeBSD_version >= 500000
printf("No ocb(%x) on the queue\n",
#else
printf("No ocb(%lx) on the queue\n",
#endif
ntohl(sbp_status->orb_lo));
}
break;
case 2:
/* unsolicit */
sbp_show_sdev_info(sdev, 2);
printf("unsolicit status received\n");
break;
default:
sbp_show_sdev_info(sdev, 2);
printf("unknown sbp_status->src\n");
}
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 > 1){
int status;
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("ORB status src:%x resp:%x dead:%x"
#if __FreeBSD_version >= 500000
" len:%x stat:%x orb:%x%08x\n",
#else
" len:%x stat:%x orb:%x%08lx\n",
#endif
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
sbp_show_sdev_info(sdev, 2);
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) {
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
}
reset_agent = 1;
}
if (ocb == NULL)
goto done;
sdev->flags &= ~SBP_DEV_TIMEOUT;
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;
switch(orb_fun) {
case ORB_FUN_LGI:
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)
sbp_show_sdev_info(sdev, 2);
printf("login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo, ntohs(login_res->recon_hold));
END_DEBUG
#if 0
sdev->status = SBP_DEV_TOATTACH;
#endif
#if 1
sbp_busy_timeout(sdev);
#else
sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
#endif
} else {
/* forgot logout? */
sbp_show_sdev_info(sdev, 2);
printf("login failed\n");
sdev->status = SBP_DEV_RESET;
}
break;
case ORB_FUN_RCN:
login_res = &sdev->login;
if (status_valid) {
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
END_DEBUG
#if 1
if (sdev->status == SBP_DEV_ATTACHED)
sbp_scan_dev(sdev);
else
sbp_agent_reset(sdev);
#else
sdev->status = SBP_DEV_ATTACHED;
sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
#endif
} else {
/* reconnection hold time exceed? */
SBP_DEBUG(0)
sbp_show_sdev_info(sdev, 2);
printf("reconnect failed\n");
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:
sbp_show_sdev_info(sdev, 2);
printf("unknown function %d\n", orb_fun);
break;
}
sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
break;
case OCB_ACT_CMD:
if(ocb->ccb != NULL){
union ccb *ccb;
/*
u_int32_t *ld;
ld = ocb->ccb->csio.data_ptr;
if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
else
printf("ptr NULL\n");
printf("len %d\n", sbp_status->len);
*/
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);
xpt_done(ccb);
}
break;
default:
break;
}
}
sbp_free_ocb(sbp, ocb);
done:
if (reset_agent)
sbp_agent_reset(sdev);
/* 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.buf = malloc(12, M_SBP, M_NOWAIT | M_ZERO);
xfer->send.len = 12;
xfer->send.off = 0;
sfp = (struct fw_pkt *)xfer->send.buf;
sfp->mode.wres.dst = rfp->mode.wreqb.src;
xfer->dst = ntohs(sfp->mode.wres.dst);
xfer->spd = min(sdev->target->fwdev->speed, max_speed);
xfer->act.hand = sbp_loginres_callback;
xfer->retry_req = fw_asybusy;
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
fw_xfer_free(xfer);
#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 fw_xfer *xfer;
int i, s, error;
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 = device_get_ivars(dev);
#define SBP_SEG_MAX 0x8000
error = bus_dma_tag_create(/*parent*/NULL, /*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,
&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),
/*untagged*/ 1,
/*tagged*/ SBP_QUEUE_LEN,
devq);
if (sbp->sim == NULL) {
cam_simq_free(devq);
return (ENXIO);
}
sbp->ocb = (struct sbp_ocb *) contigmalloc(
sizeof (struct sbp_ocb) * SBP_NUM_OCB,
M_SBP, M_NOWAIT, 0x10000, 0xffffffff, PAGE_SIZE, 0ul);
bzero(sbp->ocb, sizeof (struct sbp_ocb) * SBP_NUM_OCB);
if (sbp->ocb == NULL) {
printf("sbp0: ocb alloction failure\n");
return (ENOMEM);
}
STAILQ_INIT(&sbp->free_ocbs);
for (i = 0; i < SBP_NUM_OCB; i++) {
sbp_free_ocb(sbp, &sbp->ocb[i]);
}
if (xpt_bus_register(sbp->sim, /*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)
goto fail;
xfer = fw_xfer_alloc(M_SBP);
xfer->act.hand = sbp_recv;
xfer->act_type = FWACT_XFER;
#if NEED_RESPONSE
xfer->fc = sbp->fd.fc;
#endif
xfer->sc = (caddr_t)sbp;
sbp->fwb.start_hi = SBP_BIND_HI;
sbp->fwb.start_lo = SBP_DEV2ADDR(device_get_unit(sbp->fd.dev), 0, 0);
/* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
sbp->fwb.addrlen = 0xffff;
sbp->fwb.xfer = xfer;
fw_bindadd(sbp->fd.fc, &sbp->fwb);
sbp->fd.post_explore = sbp_post_explore;
if (sbp->fd.fc->status != -1) {
s = splfw();
sbp_post_explore((void *)sbp);
splx(s);
}
return (0);
fail:
cam_sim_free(sbp->sim, /*free_devq*/TRUE);
contigfree(sbp->ocb, sizeof (struct sbp_ocb) * SBP_NUM_OCB, M_SBP);
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->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 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
#if 0
/* bus reset for logout */
sbp->fd.post_explore = NULL;
fc->ibr(fc);
#endif
for (i = 0; i < SBP_NUM_TARGETS; i ++)
sbp_cam_detach_target(&sbp->targets[i]);
xpt_free_path(sbp->path);
xpt_bus_deregister(cam_sim_path(sbp->sim));
sbp_logout_all(sbp);
/* XXX wait for logout completion */
tsleep(&i, FWPRI, "sbpdtc", hz/2);
fw_bindremove(fc, &sbp->fwb);
contigfree(sbp->ocb, sizeof (struct sbp_ocb) * SBP_NUM_OCB, M_SBP);
bus_dma_tag_destroy(sbp->dmat);
for (i = 0; i < SBP_NUM_TARGETS; i ++)
if (sbp->targets[i].luns != NULL)
free(sbp->targets[i].luns, M_SBP);
return (0);
}
static void
sbp_cam_detach_target(struct sbp_target *target)
{
int i;
struct sbp_dev *sdev;
if (target->luns != NULL) {
SBP_DEBUG(0)
printf("sbp_detach_target %d\n", target->target_id);
END_DEBUG
callout_stop(&target->scan_callout);
callout_stop(&target->mgm_ocb_timeout);
for (i = 0; i < target->num_lun; i++) {
sdev = &target->luns[i];
callout_stop(&sdev->login_callout);
if (sdev->status == SBP_DEV_RESET ||
sdev->status == SBP_DEV_DEAD)
continue;
if (sdev->path) {
xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
xpt_free_path(sdev->path);
sdev->path = NULL;
}
sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
}
}
}
static void
sbp_timeout(void *arg)
{
struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
struct sbp_dev *sdev = ocb->sdev;
sbp_show_sdev_info(sdev, 2);
printf("request timeout ... ");
if (ocb->flags == OCB_ACT_MGM) {
printf("management ORB\n");
/* XXX just ignore for now */
sdev->target->mgm_ocb_cur = NULL;
sbp_free_ocb(sdev->target->sbp, ocb);
sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
return;
}
xpt_freeze_devq(sdev->path, 1);
sdev->freeze ++;
sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
if (sdev->flags & SBP_DEV_TIMEOUT) {
#if 0
struct firewire_comm *fc;
printf("bus reset\n");
fc = sdev->target->sbp->fd.fc;
fc->ibr(fc);
sdev->status == SBP_DEV_RETRY;
#else
printf("target reset\n");
sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
#endif
sdev->flags &= ~SBP_DEV_TIMEOUT;
} else {
printf("agent reset\n");
sdev->flags |= SBP_DEV_TIMEOUT;
sbp_agent_reset(sdev);
}
return;
}
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->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 s, speed;
void *cdb;
csio = &ccb->csio;
SBP_DEBUG(1)
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(sbp)) == NULL) {
s = splfw();
sbp->flags |= SBP_RESOURCE_SHORTAGE;
splx(s);
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(vtophys(ocb->ind_ptr));
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 *)(uintptr_t)(volatile 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;
if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
printf("sbp_action1: cannot create dmamap\n");
break;
}
s = splsoftvm();
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);
} else
sbp_execute_ocb(ocb, NULL, 0, 0);
break;
}
case XPT_CALC_GEOMETRY:
{
struct ccb_calc_geometry *ccg;
u_int32_t size_mb;
u_int32_t secs_per_cylinder;
int extended = 1;
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: "
"Volume size = %d\n",
device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim),
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
ccg->volume_size);
END_DEBUG
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;
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;
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->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_GET_TRAN_SETTINGS:
{
struct ccb_trans_settings *cts = &ccb->cts;
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
/* Enable disconnect and tagged queuing */
cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
cts->flags = CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB;
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;
union ccb *ccb;
bus_dma_segment_t *s;
if (error)
printf("sbp_execute_ocb: error=%d\n", error);
ocb = (struct sbp_ocb *)arg;
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 */
SBP_DEBUG(1)
printf("sbp_execute_ocb: seg %d", seg);
for (i = 0; i < seg; i++)
#if __FreeBSD_version >= 500000
printf(", %tx:%zd", segments[i].ds_addr,
#else
printf(", %x:%d", segments[i].ds_addr,
#endif
segments[i].ds_len);
printf("\n");
END_DEBUG
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 __FreeBSD_version >= 500000
"segment length(%zd) is less than 16."
#else
"segment length(%d) is less than 16."
#endif
"(seg=%d/%d)\n", 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);
}
ccb = ocb->ccb;
prev = sbp_enqueue_ocb(ocb->sdev, ocb);
if (prev == NULL)
sbp_orb_pointer(ocb->sdev, ocb);
}
static void
sbp_poll(struct cam_sim *sim)
{
/* should call fwohci_intr? */
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;
for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
next = STAILQ_NEXT(ocb, ocb);
flags = ocb->flags;
SBP_DEBUG(1)
sbp_show_sdev_info(sdev, 2);
#if __FreeBSD_version >= 500000
printf("orb: 0x%tx next: 0x%x, flags %x\n",
#else
printf("orb: 0x%x next: 0x%lx, flags %x\n",
#endif
vtophys(&ocb->orb[0]), ntohl(ocb->orb[1]), flags);
END_DEBUG
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 (ocb->dmamap != NULL) {
bus_dmamap_destroy(sdev->target->sbp->dmat,
ocb->dmamap);
ocb->dmamap = NULL;
}
if (next != NULL && sbp_status->src == 1)
sbp_orb_pointer(sdev, next);
break;
} else
order ++;
}
splx(s);
SBP_DEBUG(0)
if (ocb && order > 0) {
sbp_show_sdev_info(sdev, 2);
printf("unordered execution order:%d\n", 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;
SBP_DEBUG(2)
sbp_show_sdev_info(sdev, 2);
#if __FreeBSD_version >= 500000
printf("sbp_enqueue_ocb orb=0x%tx in physical memory\n", vtophys(&ocb->orb[0]));
#else
printf("sbp_enqueue_ocb orb=0x%x in physical memory\n", vtophys(&ocb->orb[0]));
#endif
END_DEBUG
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 (prev != NULL ) {
SBP_DEBUG(1)
#if __FreeBSD_version >= 500000
printf("linking chain 0x%tx -> 0x%tx\n", vtophys(&prev->orb[0]),
#else
printf("linking chain 0x%x -> 0x%x\n", vtophys(&prev->orb[0]),
#endif
vtophys(&ocb->orb[0]));
END_DEBUG
prev->orb[1] = htonl(vtophys(&ocb->orb[0]));
prev->orb[0] = 0;
}
splx(s);
return prev;
}
static struct sbp_ocb *
sbp_get_ocb(struct sbp_softc *sbp)
{
struct sbp_ocb *ocb;
int s = splfw();
ocb = STAILQ_FIRST(&sbp->free_ocbs);
if (ocb == NULL) {
printf("ocb shortage!!!\n");
return NULL;
}
STAILQ_REMOVE_HEAD(&sbp->free_ocbs, ocb);
splx(s);
ocb->ccb = NULL;
return (ocb);
}
static void
sbp_free_ocb(struct sbp_softc *sbp, struct sbp_ocb *ocb)
{
#if 0 /* XXX make sure that ocb has ccb */
if ((sbp->flags & SBP_RESOURCE_SHORTAGE) != 0 &&
(ocb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
ocb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
sbp->flags &= ~SBP_RESOURCE_SHORTAGE;
}
#else
if ((sbp->flags & SBP_RESOURCE_SHORTAGE) != 0)
sbp->flags &= ~SBP_RESOURCE_SHORTAGE;
#endif
ocb->flags = 0;
ocb->ccb = NULL;
STAILQ_INSERT_TAIL(&sbp->free_ocbs, ocb, ocb);
}
static void
sbp_abort_ocb(struct sbp_ocb *ocb, int status)
{
struct sbp_dev *sdev;
sdev = ocb->sdev;
SBP_DEBUG(1)
sbp_show_sdev_info(sdev, 2);
#if __FreeBSD_version >= 500000
printf("sbp_abort_ocb 0x%tx\n",
#else
printf("sbp_abort_ocb 0x%x\n",
#endif
vtophys(&ocb->orb[0]));
if (ocb->ccb != NULL)
sbp_print_scsi_cmd(ocb);
END_DEBUG
if (ocb->ccb != NULL) {
untimeout(sbp_timeout, (caddr_t)ocb,
ocb->ccb->ccb_h.timeout_ch);
ocb->ccb->ccb_h.status = status;
xpt_done(ocb->ccb);
}
if (ocb->dmamap != NULL) {
bus_dmamap_destroy(sdev->target->sbp->dmat, ocb->dmamap);
ocb->dmamap = NULL;
}
sbp_free_ocb(sdev->target->sbp, 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();
bcopy(&sdev->ocbs, &temp, sizeof(temp));
STAILQ_INIT(&sdev->ocbs);
for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
next = STAILQ_NEXT(ocb, ocb);
sbp_abort_ocb(ocb, status);
}
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),
};
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);
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