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freebsd-skq/sys/dev/firewire/sbp.c
simokawa 29b43e58e3 MFp4(simokawa_firewire): 
Many internal structure changes for the FireWire driver.

- Compute CRC in CROM parsing.
- Add support for configuration ROM build.
- Simplify dummy buffer handling.
- busdma conversion
- Use swi_taskqueue_giant for -current.  Mark the interrupt routine as MPSAFE.
- AR buffer handling.
	Don't reallocate AR buffer but just recycle it.
	Don't malloc and copy per packet in fwohci_arcv().
	Pass packet to fw_rcv() using iovec.
	Application must prepare receiving buffer in advance.
- Change fw_bind API so that application should pre-allocate xfer structure.
- Add fw_xfer_unload() for recycling struct fw_xfer.
- Add post_busreset hook
- Remove unused 'sub' and 'act_type' in struct fw_xfer.
- Remove npacket from struct fw_bulkxfer.
- Don't call back handlers in fwochi_arcv() if the packet has
	not drained in AT queue
- Make firewire works on big endian platform.
- Use native endian for packet header and remove unnecessary ntohX/htonX.
- Remove FWXFERQ_PACKET mode.  We don't use it anymore.
- Remove unnecessary restriction of FWSTMAXCHUNK.
- Don't set root node for phy config packet if the root node is
	not cycle master capable but set myself for root node.
	We should be the root node after next bus reset.

	Spotted by: Yoshihiro Tabira <tabira@scd.mei.co.jp>
- Improve self id handling

Tested on: i386, sparc64 and i386 with forced bounce buffer
2003-04-17 03:38:03 +00:00

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/*
* Copyright (c) 2003 Hidetosh Shimokawa
* Copyright (c) 1998-2002 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 <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/fwdma.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_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)
#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_SEG_MAX rounddown(0xffff, PAGE_SIZE)
#ifdef __sparc64__ /* iommu */
#define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX)
#else
#define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE)
#endif
struct sbp_ocb {
STAILQ_ENTRY(sbp_ocb) ocb;
union ccb *ccb;
bus_addr_t bus_addr;
volatile u_int32_t orb[8];
#define IND_PTR_OFFSET (8*sizeof(u_int32_t))
volatile 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))
#define SBP_RECV_LEN (16 + 32) /* header + payload */
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{
#if BYTE_ORDER == BIG_ENDIAN
u_int8_t src:2,
resp:2,
dead:1,
len:3;
#else
u_int8_t len:3,
dead:1,
resp:2,
src:2;
#endif
u_int8_t status;
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
#if BYTE_ORDER == BIG_ENDIAN
u_int8_t sfmt:2,
status:6;
u_int8_t valid:1,
mark:1,
eom:1,
ill_len:1,
s_key:4;
#else
u_int8_t status:6,
sfmt:2;
u_int8_t s_key:4,
ill_len:1,
eom:1,
mark:1,
valid:1;
#endif
u_int8_t s_code;
u_int8_t s_qlfr;
u_int32_t info;
u_int32_t cdb;
#if BYTE_ORDER == BIG_ENDIAN
u_int32_t s_keydep:24,
fru:8;
#else
u_int32_t fru:8,
s_keydep:24;
#endif
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 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;
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;
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;
#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_dev *, 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_dev *));
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->xferlist);
target->n_xfer = 0;
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;
}
sdev = &target->luns[lun];
sdev->status = SBP_DEV_RESET;
sdev->type = (reg->val & 0xf0000) >> 16;
fwdma_malloc(sbp->fd.fc,
/* alignment */ sizeof(u_int32_t),
SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
if (sdev->dma.v_addr == NULL) {
printf("%s: dma space allocation failed\n",
__FUNCTION__);
return (NULL);
}
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");
return (NULL);
}
sbp_free_ocb(sdev, ocb);
}
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,
(sdev->status == SBP_DEV_RESET));
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)
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_busreset(void *arg)
{
struct sbp_softc *sbp;
sbp = (struct sbp_softc *)arg;
SBP_DEBUG(0)
printf("sbp_post_busreset\n");
END_DEBUG
}
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 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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_loginres_callback\n");
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();
STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
splx(s);
}
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
sbp_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
sbp_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;
}
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
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)
sbp_show_sdev_info(sdev, 2);
printf("sbp_cmd_callback\n");
END_DEBUG
sbp_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
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)
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 = 0xffff;
fp->mode.wreqq.dest_lo = 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 = 0xffff;
fp->mode.wreqq.dest_lo = 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 = 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(ocb->bus_addr);
if(fw_asyreq(xfer->fc, -1, xfer) != 0){
sbp_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;
struct sbp_target *target;
int s, new = 0;
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, 24, 12);
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);
microtime(&xfer->tv);
if (tcode == FWTCODE_WREQQ)
xfer->send.len = 16;
else
xfer->send.len = 24;
xfer->recv.len = 12;
if (new) {
xfer->spd = min(sdev->target->fwdev->speed, max_speed);
xfer->fc = sdev->target->sbp->fd.fc;
xfer->retry_req = fw_asybusy;
}
xfer->sc = (caddr_t)sdev;
fp = (struct fw_pkt *)xfer->send.buf;
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;
xfer->dst = FWLOCALBUS | sdev->target->fwdev->dst;
fp->mode.wreqq.dst = 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(sdev)) == NULL) {
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(sdev->dma.bus_addr);
ocb->orb[4] = htonl(ORB_NOTIFY | ORB_EXV | sdev->lun_id);
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 */
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 = sdev->target->mgm_hi;
fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
fp->mode.wreqb.len = 8;
fp->mode.wreqb.extcode = 0;
fp->mode.wreqb.payload[0] = htonl(nid << 16);
fp->mode.wreqb.payload[1] = htonl(ocb->bus_addr);
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\n",
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;
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]));
*/
sbp = (struct sbp_softc *)xfer->sc;
if(xfer->resp != 0){
printf("sbp_recv: xfer->resp != 0\n");
goto done0;
}
if(xfer->recv.buf == NULL){
printf("sbp_recv: xfer->recv.buf == NULL\n");
goto done0;
}
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);
goto done0;
}
sbp_status = (struct sbp_status *)rfp->mode.wreqb.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) {
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) {
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:
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)
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
sbp_busy_timeout(sdev);
} 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(sdev, ocb);
done:
if (reset_agent)
sbp_agent_reset(sdev);
done0:
/* 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->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
/* recycle */
xfer->recv.len = SBP_RECV_LEN;
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 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);
error = bus_dma_tag_create(/*parent*/sbp->fd.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,
&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);
}
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;
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.act_type = FWACT_XFER;
/* pre-allocate xfer */
STAILQ_INIT(&sbp->fwb.xferlist);
for (i = 0; i < SBP_NUM_OCB/2; i ++) {
xfer = fw_xfer_alloc_buf(M_SBP,
#if NEED_RESPONSE
/* send */12,
#else
/* send */0,
#endif
/* recv */SBP_RECV_LEN);
xfer->act.hand = sbp_recv;
#if NEED_RESPONSE
xfer->fc = sbp->fd.fc;
#endif
xfer->sc = (caddr_t)sbp;
STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
}
fw_bindadd(sbp->fd.fc, &sbp->fwb);
sbp->fd.post_busreset = sbp_post_busreset;
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);
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];
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 int
sbp_detach(device_t dev)
{
struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
struct firewire_comm *fc = sbp->fd.fc;
struct sbp_target *target;
struct sbp_dev *sdev;
struct fw_xfer *xfer, *next;
int i, j;
SBP_DEBUG(0)
printf("sbp_detach\n");
END_DEBUG
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);
for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
target = &sbp->targets[i];
if (target->luns == NULL)
continue;
callout_stop(&target->mgm_ocb_timeout);
for (j = 0; j < target->num_lun; j++) {
sdev = &target->luns[j];
if (sdev->status != SBP_DEV_DEAD) {
for (i = 0; i < SBP_QUEUE_LEN; i++)
bus_dmamap_destroy(sbp->dmat,
sdev->ocb[i].dmamap);
fwdma_free(sbp->fd.fc, &sdev->dma);
}
}
for (xfer = STAILQ_FIRST(&target->xferlist);
xfer != NULL; xfer = next) {
next = STAILQ_NEXT(xfer, link);
fw_xfer_free(xfer);
}
free(target->luns, M_SBP);
}
for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
xfer != NULL; xfer = next) {
next = STAILQ_NEXT(xfer, link);
fw_xfer_free(xfer);
}
STAILQ_INIT(&sbp->fwb.xferlist);
fw_bindremove(fc, &sbp->fwb);
bus_dma_tag_destroy(sbp->dmat);
return (0);
}
static void
sbp_cam_detach_target(struct sbp_target *target)
{
struct sbp_dev *sdev;
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++) {
sdev = &target->luns[i];
if (sdev->status == SBP_DEV_DEAD)
continue;
if (sdev->status == SBP_DEV_RESET)
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, 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) {
printf("target reset\n");
sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
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 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(sdev)) == NULL)
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 *)(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, 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;
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;
bus_dma_segment_t *s;
if (error)
printf("sbp_execute_ocb: error=%d\n", error);
ocb = (struct sbp_ocb *)arg;
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
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 __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);
}
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 (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
ocb->bus_addr, 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 (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 (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", ocb->bus_addr);
#else
printf("sbp_enqueue_ocb orb=0x%x in physical memory\n", ocb->bus_addr);
#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", prev->bus_addr,
#else
printf("linking chain 0x%x -> 0x%x\n", prev->bus_addr,
#endif
ocb->bus_addr);
END_DEBUG
prev->orb[1] = htonl(ocb->bus_addr);
prev->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();
ocb = STAILQ_FIRST(&sdev->free_ocbs);
if (ocb == NULL) {
printf("ocb shortage!!!\n");
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;
STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
}
static void
sbp_abort_ocb(struct sbp_ocb *ocb, int status)
{
struct sbp_dev *sdev;
sdev = ocb->sdev;
SBP_DEBUG(0)
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
ocb->bus_addr);
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;
xpt_done(ocb->ccb);
}
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();
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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