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-rw-r--r--sys/dev/firewire/sbp.c2894
1 files changed, 2894 insertions, 0 deletions
diff --git a/sys/dev/firewire/sbp.c b/sys/dev/firewire/sbp.c
new file mode 100644
index 000000000000..89b9631d828c
--- /dev/null
+++ b/sys/dev/firewire/sbp.c
@@ -0,0 +1,2894 @@
+/*
+ * Copyright (c) 2003 Hidetoshi Shimokawa
+ * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the acknowledgement as bellow:
+ *
+ * This product includes software developed by K. Kobayashi and H. Shimokawa
+ *
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ *
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/sysctl.h>
+#include <machine/bus.h>
+#include <sys/malloc.h>
+#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#endif
+
+#if defined(__DragonFly__) || __FreeBSD_version < 500106
+#include <sys/devicestat.h> /* for struct devstat */
+#endif
+
+#ifdef __DragonFly__
+#include <bus/cam/cam.h>
+#include <bus/cam/cam_ccb.h>
+#include <bus/cam/cam_sim.h>
+#include <bus/cam/cam_xpt_sim.h>
+#include <bus/cam/cam_debug.h>
+#include <bus/cam/cam_periph.h>
+#include <bus/cam/scsi/scsi_all.h>
+
+#include <bus/firewire/firewire.h>
+#include <bus/firewire/firewirereg.h>
+#include <bus/firewire/fwdma.h>
+#include <bus/firewire/iec13213.h>
+#include "sbp.h"
+#else
+#include <cam/cam.h>
+#include <cam/cam_ccb.h>
+#include <cam/cam_sim.h>
+#include <cam/cam_xpt_sim.h>
+#include <cam/cam_debug.h>
+#include <cam/cam_periph.h>
+#include <cam/scsi/scsi_all.h>
+
+#include <dev/firewire/firewire.h>
+#include <dev/firewire/firewirereg.h>
+#include <dev/firewire/fwdma.h>
+#include <dev/firewire/iec13213.h>
+#include <dev/firewire/sbp.h>
+#endif
+
+#define ccb_sdev_ptr spriv_ptr0
+#define ccb_sbp_ptr spriv_ptr1
+
+#define SBP_NUM_TARGETS 8 /* MAX 64 */
+/*
+ * Scan_bus doesn't work for more than 8 LUNs
+ * because of CAM_SCSI2_MAXLUN in cam_xpt.c
+ */
+#define SBP_NUM_LUNS 64
+#define SBP_DMA_SIZE PAGE_SIZE
+#define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
+#define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
+#define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
+
+/*
+ * STATUS FIFO addressing
+ * bit
+ * -----------------------
+ * 0- 1( 2): 0 (alignment)
+ * 2- 7( 6): target
+ * 8-15( 8): lun
+ * 16-31( 8): reserved
+ * 32-47(16): SBP_BIND_HI
+ * 48-64(16): bus_id, node_id
+ */
+#define SBP_BIND_HI 0x1
+#define SBP_DEV2ADDR(t, l) \
+ (((u_int64_t)SBP_BIND_HI << 32) \
+ | (((l) & 0xff) << 8) \
+ | (((t) & 0x3f) << 2))
+#define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
+#define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
+#define SBP_INITIATOR 7
+
+static char *orb_fun_name[] = {
+ ORB_FUN_NAMES
+};
+
+static int debug = 0;
+static int auto_login = 1;
+static int max_speed = -1;
+static int sbp_cold = 1;
+static int ex_login = 1;
+static int login_delay = 1000; /* msec */
+static int scan_delay = 500; /* msec */
+static int use_doorbell = 0;
+static int sbp_tags = 0;
+
+SYSCTL_DECL(_hw_firewire);
+SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
+SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
+ "SBP debug flag");
+SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
+ "SBP perform login automatically");
+SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
+ "SBP transfer max speed");
+SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
+ &ex_login, 0, "SBP enable exclusive login");
+SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
+ &login_delay, 0, "SBP login delay in msec");
+SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
+ &scan_delay, 0, "SBP scan delay in msec");
+SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
+ &use_doorbell, 0, "SBP use doorbell request");
+SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
+ "SBP tagged queuing support");
+
+TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
+TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
+TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
+TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
+TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
+TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
+TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
+
+#define NEED_RESPONSE 0
+
+#define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
+#ifdef __sparc64__ /* iommu */
+#define SBP_IND_MAX howmany(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;
+ uint32_t orb[8];
+#define IND_PTR_OFFSET (8*sizeof(uint32_t))
+ struct ind_ptr ind_ptr[SBP_IND_MAX];
+ struct sbp_dev *sdev;
+ int flags; /* XXX should be removed */
+ bus_dmamap_t dmamap;
+};
+
+#define OCB_ACT_MGM 0
+#define OCB_ACT_CMD 1
+#define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
+
+struct sbp_dev{
+#define SBP_DEV_RESET 0 /* accept login */
+#define SBP_DEV_LOGIN 1 /* to login */
+#if 0
+#define SBP_DEV_RECONN 2 /* to reconnect */
+#endif
+#define SBP_DEV_TOATTACH 3 /* to attach */
+#define SBP_DEV_PROBE 4 /* scan lun */
+#define SBP_DEV_ATTACHED 5 /* in operation */
+#define SBP_DEV_DEAD 6 /* unavailable unit */
+#define SBP_DEV_RETRY 7 /* unavailable unit */
+ uint8_t status:4,
+ timeout:4;
+ uint8_t type;
+ uint16_t lun_id;
+ uint16_t freeze;
+#define ORB_LINK_DEAD (1 << 0)
+#define VALID_LUN (1 << 1)
+#define ORB_POINTER_ACTIVE (1 << 2)
+#define ORB_POINTER_NEED (1 << 3)
+#define ORB_DOORBELL_ACTIVE (1 << 4)
+#define ORB_DOORBELL_NEED (1 << 5)
+#define ORB_SHORTAGE (1 << 6)
+ uint16_t flags;
+ struct cam_path *path;
+ struct sbp_target *target;
+ struct fwdma_alloc dma;
+ struct sbp_login_res *login;
+ struct callout login_callout;
+ struct sbp_ocb *ocb;
+ STAILQ_HEAD(, sbp_ocb) ocbs;
+ STAILQ_HEAD(, sbp_ocb) free_ocbs;
+ struct sbp_ocb *last_ocb;
+ char vendor[32];
+ char product[32];
+ char revision[10];
+};
+
+struct sbp_target {
+ int target_id;
+ int num_lun;
+ struct sbp_dev **luns;
+ struct sbp_softc *sbp;
+ struct fw_device *fwdev;
+ uint32_t mgm_hi, mgm_lo;
+ struct sbp_ocb *mgm_ocb_cur;
+ STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
+ struct callout mgm_ocb_timeout;
+ struct callout scan_callout;
+ STAILQ_HEAD(, fw_xfer) xferlist;
+ int n_xfer;
+};
+
+struct sbp_softc {
+ struct firewire_dev_comm fd;
+ struct cam_sim *sim;
+ struct cam_path *path;
+ struct sbp_target targets[SBP_NUM_TARGETS];
+ struct fw_bind fwb;
+ bus_dma_tag_t dmat;
+ struct timeval last_busreset;
+#define SIMQ_FREEZED 1
+ int flags;
+};
+
+static void sbp_post_explore (void *);
+static void sbp_recv (struct fw_xfer *);
+static void sbp_mgm_callback (struct fw_xfer *);
+#if 0
+static void sbp_cmd_callback (struct fw_xfer *);
+#endif
+static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
+static void sbp_doorbell(struct sbp_dev *);
+static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
+static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
+static void sbp_abort_ocb (struct sbp_ocb *, int);
+static void sbp_abort_all_ocbs (struct sbp_dev *, int);
+static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
+static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
+static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
+static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
+static void sbp_cam_detach_sdev(struct sbp_dev *);
+static void sbp_free_sdev(struct sbp_dev *);
+static void sbp_cam_detach_target (struct sbp_target *);
+static void sbp_free_target (struct sbp_target *);
+static void sbp_mgm_timeout (void *arg);
+static void sbp_timeout (void *arg);
+static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
+
+MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
+
+/* cam related functions */
+static void sbp_action(struct cam_sim *sim, union ccb *ccb);
+static void sbp_poll(struct cam_sim *sim);
+static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
+static void sbp_cam_scan_target(void *arg);
+
+static char *orb_status0[] = {
+ /* 0 */ "No additional information to report",
+ /* 1 */ "Request type not supported",
+ /* 2 */ "Speed not supported",
+ /* 3 */ "Page size not supported",
+ /* 4 */ "Access denied",
+ /* 5 */ "Logical unit not supported",
+ /* 6 */ "Maximum payload too small",
+ /* 7 */ "Reserved for future standardization",
+ /* 8 */ "Resources unavailable",
+ /* 9 */ "Function rejected",
+ /* A */ "Login ID not recognized",
+ /* B */ "Dummy ORB completed",
+ /* C */ "Request aborted",
+ /* FF */ "Unspecified error"
+#define MAX_ORB_STATUS0 0xd
+};
+
+static char *orb_status1_object[] = {
+ /* 0 */ "Operation request block (ORB)",
+ /* 1 */ "Data buffer",
+ /* 2 */ "Page table",
+ /* 3 */ "Unable to specify"
+};
+
+static char *orb_status1_serial_bus_error[] = {
+ /* 0 */ "Missing acknowledge",
+ /* 1 */ "Reserved; not to be used",
+ /* 2 */ "Time-out error",
+ /* 3 */ "Reserved; not to be used",
+ /* 4 */ "Busy retry limit exceeded(X)",
+ /* 5 */ "Busy retry limit exceeded(A)",
+ /* 6 */ "Busy retry limit exceeded(B)",
+ /* 7 */ "Reserved for future standardization",
+ /* 8 */ "Reserved for future standardization",
+ /* 9 */ "Reserved for future standardization",
+ /* A */ "Reserved for future standardization",
+ /* B */ "Tardy retry limit exceeded",
+ /* C */ "Conflict error",
+ /* D */ "Data error",
+ /* E */ "Type error",
+ /* F */ "Address error"
+};
+
+static void
+sbp_identify(driver_t *driver, device_t parent)
+{
+ 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, "SBP-2/SCSI over FireWire");
+
+#if 0
+ if (bootverbose)
+ debug = bootverbose;
+#endif
+
+ 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 void
+sbp_alloc_lun(struct sbp_target *target)
+{
+ struct crom_context cc;
+ struct csrreg *reg;
+ struct sbp_dev *sdev, **newluns;
+ struct sbp_softc *sbp;
+ int maxlun, lun, i;
+
+ sbp = target->sbp;
+ crom_init_context(&cc, target->fwdev->csrrom);
+ /* XXX shoud parse appropriate unit directories only */
+ maxlun = -1;
+ while (cc.depth >= 0) {
+ reg = crom_search_key(&cc, CROM_LUN);
+ if (reg == NULL)
+ break;
+ lun = reg->val & 0xffff;
+SBP_DEBUG(0)
+ printf("target %d lun %d found\n", target->target_id, lun);
+END_DEBUG
+ if (maxlun < lun)
+ maxlun = lun;
+ crom_next(&cc);
+ }
+ if (maxlun < 0)
+ printf("%s:%d no LUN found\n",
+ device_get_nameunit(target->sbp->fd.dev),
+ target->target_id);
+
+ maxlun ++;
+ if (maxlun >= SBP_NUM_LUNS)
+ maxlun = SBP_NUM_LUNS;
+
+ /* Invalidiate stale devices */
+ for (lun = 0; lun < target->num_lun; lun ++) {
+ sdev = target->luns[lun];
+ if (sdev == NULL)
+ continue;
+ sdev->flags &= ~VALID_LUN;
+ if (lun >= maxlun) {
+ /* lost device */
+ sbp_cam_detach_sdev(sdev);
+ sbp_free_sdev(sdev);
+ }
+ }
+
+ /* Reallocate */
+ if (maxlun != target->num_lun) {
+ newluns = (struct sbp_dev **) realloc(target->luns,
+ sizeof(struct sbp_dev *) * maxlun,
+ M_SBP, M_NOWAIT | M_ZERO);
+
+ if (newluns == NULL) {
+ printf("%s: realloc failed\n", __func__);
+ newluns = target->luns;
+ maxlun = target->num_lun;
+ }
+
+ /*
+ * We must zero the extended region for the case
+ * realloc() doesn't allocate new buffer.
+ */
+ if (maxlun > target->num_lun)
+ bzero(&newluns[target->num_lun],
+ sizeof(struct sbp_dev *) *
+ (maxlun - target->num_lun));
+
+ target->luns = newluns;
+ target->num_lun = maxlun;
+ }
+
+ crom_init_context(&cc, target->fwdev->csrrom);
+ while (cc.depth >= 0) {
+ int new = 0;
+
+ reg = crom_search_key(&cc, CROM_LUN);
+ if (reg == NULL)
+ break;
+ lun = reg->val & 0xffff;
+ if (lun >= SBP_NUM_LUNS) {
+ printf("too large lun %d\n", lun);
+ goto next;
+ }
+
+ sdev = target->luns[lun];
+ if (sdev == NULL) {
+ sdev = malloc(sizeof(struct sbp_dev),
+ M_SBP, M_NOWAIT | M_ZERO);
+ if (sdev == NULL) {
+ printf("%s: malloc failed\n", __func__);
+ goto next;
+ }
+ target->luns[lun] = sdev;
+ sdev->lun_id = lun;
+ sdev->target = target;
+ STAILQ_INIT(&sdev->ocbs);
+ CALLOUT_INIT(&sdev->login_callout);
+ sdev->status = SBP_DEV_RESET;
+ new = 1;
+ }
+ sdev->flags |= VALID_LUN;
+ sdev->type = (reg->val & 0xff0000) >> 16;
+
+ if (new == 0)
+ goto next;
+
+ fwdma_malloc(sbp->fd.fc,
+ /* alignment */ sizeof(uint32_t),
+ SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
+ if (sdev->dma.v_addr == NULL) {
+ printf("%s: dma space allocation failed\n",
+ __func__);
+ free(sdev, M_SBP);
+ target->luns[lun] = NULL;
+ goto next;
+ }
+ sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
+ sdev->ocb = (struct sbp_ocb *)
+ ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
+ bzero((char *)sdev->ocb,
+ sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
+
+ STAILQ_INIT(&sdev->free_ocbs);
+ for (i = 0; i < SBP_QUEUE_LEN; i++) {
+ struct sbp_ocb *ocb;
+ ocb = &sdev->ocb[i];
+ ocb->bus_addr = sdev->dma.bus_addr
+ + SBP_LOGIN_SIZE
+ + sizeof(struct sbp_ocb) * i
+ + offsetof(struct sbp_ocb, orb[0]);
+ if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
+ printf("sbp_attach: cannot create dmamap\n");
+ /* XXX */
+ goto next;
+ }
+ sbp_free_ocb(sdev, ocb);
+ }
+next:
+ crom_next(&cc);
+ }
+
+ for (lun = 0; lun < target->num_lun; lun ++) {
+ sdev = target->luns[lun];
+ if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
+ sbp_cam_detach_sdev(sdev);
+ sbp_free_sdev(sdev);
+ target->luns[lun] = NULL;
+ }
+ }
+}
+
+static struct sbp_target *
+sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
+{
+ int i;
+ struct sbp_target *target;
+ struct crom_context cc;
+ struct csrreg *reg;
+
+SBP_DEBUG(1)
+ printf("sbp_alloc_target\n");
+END_DEBUG
+ i = sbp_new_target(sbp, fwdev);
+ if (i < 0) {
+ device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
+ return NULL;
+ }
+ /* new target */
+ target = &sbp->targets[i];
+ target->sbp = sbp;
+ target->fwdev = fwdev;
+ target->target_id = i;
+ /* XXX we may want to reload mgm port after each bus reset */
+ /* XXX there might be multiple management agents */
+ crom_init_context(&cc, target->fwdev->csrrom);
+ reg = crom_search_key(&cc, CROM_MGM);
+ if (reg == NULL || reg->val == 0) {
+ printf("NULL management address\n");
+ target->fwdev = NULL;
+ return NULL;
+ }
+ target->mgm_hi = 0xffff;
+ target->mgm_lo = 0xf0000000 | (reg->val << 2);
+ target->mgm_ocb_cur = NULL;
+SBP_DEBUG(1)
+ printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
+END_DEBUG
+ STAILQ_INIT(&target->xferlist);
+ target->n_xfer = 0;
+ STAILQ_INIT(&target->mgm_ocb_queue);
+ CALLOUT_INIT(&target->mgm_ocb_timeout);
+ CALLOUT_INIT(&target->scan_callout);
+
+ target->luns = NULL;
+ target->num_lun = 0;
+ return target;
+}
+
+static void
+sbp_probe_lun(struct sbp_dev *sdev)
+{
+ struct fw_device *fwdev;
+ struct crom_context c, *cc = &c;
+ struct csrreg *reg;
+
+ bzero(sdev->vendor, sizeof(sdev->vendor));
+ bzero(sdev->product, sizeof(sdev->product));
+
+ fwdev = sdev->target->fwdev;
+ crom_init_context(cc, fwdev->csrrom);
+ /* get vendor string */
+ crom_search_key(cc, CSRKEY_VENDOR);
+ crom_next(cc);
+ crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
+ /* skip to the unit directory for SBP-2 */
+ while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
+ if (reg->val == CSRVAL_T10SBP2)
+ break;
+ crom_next(cc);
+ }
+ /* get firmware revision */
+ reg = crom_search_key(cc, CSRKEY_FIRM_VER);
+ if (reg != NULL)
+ snprintf(sdev->revision, sizeof(sdev->revision),
+ "%06x", reg->val);
+ /* get product string */
+ crom_search_key(cc, CSRKEY_MODEL);
+ crom_next(cc);
+ crom_parse_text(cc, sdev->product, sizeof(sdev->product));
+}
+
+static void
+sbp_login_callout(void *arg)
+{
+ struct sbp_dev *sdev = (struct sbp_dev *)arg;
+ sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
+}
+
+static void
+sbp_login(struct sbp_dev *sdev)
+{
+ struct timeval delta;
+ struct timeval t;
+ int ticks = 0;
+
+ microtime(&delta);
+ timevalsub(&delta, &sdev->target->sbp->last_busreset);
+ t.tv_sec = login_delay / 1000;
+ t.tv_usec = (login_delay % 1000) * 1000;
+ timevalsub(&t, &delta);
+ if (t.tv_sec >= 0 && t.tv_usec > 0)
+ ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
+SBP_DEBUG(0)
+ printf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
+ t.tv_sec, t.tv_usec, ticks);
+END_DEBUG
+ callout_reset(&sdev->login_callout, ticks,
+ sbp_login_callout, (void *)(sdev));
+}
+
+#define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
+ && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
+
+static void
+sbp_probe_target(void *arg)
+{
+ struct sbp_target *target = (struct sbp_target *)arg;
+ struct sbp_softc *sbp;
+ 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;
+ sbp_alloc_lun(target);
+
+ /* XXX untimeout mgm_ocb and dequeue */
+ for (i=0; i < target->num_lun; i++) {
+ sdev = target->luns[i];
+ if (sdev == NULL)
+ continue;
+ if (alive && (sdev->status != SBP_DEV_DEAD)) {
+ if (sdev->path != NULL) {
+ 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
+ if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
+ xpt_freeze_simq(sbp->sim, /*count*/1);
+ sbp->sim->flags |= SIMQ_FREEZED;
+ }
+ microtime(&sbp->last_busreset);
+}
+
+static void
+sbp_post_explore(void *arg)
+{
+ struct sbp_softc *sbp = (struct sbp_softc *)arg;
+ struct sbp_target *target;
+ struct fw_device *fwdev;
+ int i, alive;
+
+SBP_DEBUG(0)
+ printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
+END_DEBUG
+ if (sbp_cold > 0)
+ sbp_cold --;
+
+#if 0
+ /*
+ * XXX don't let CAM the bus rest.
+ * CAM tries to do something with freezed (DEV_RETRY) devices.
+ */
+ xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
+#endif
+
+ /* Garbage Collection */
+ for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
+ target = &sbp->targets[i];
+ STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
+ if (target->fwdev == NULL || target->fwdev == fwdev)
+ break;
+ if (fwdev == NULL) {
+ /* device has removed in lower driver */
+ sbp_cam_detach_target(target);
+ sbp_free_target(target);
+ }
+ }
+ /* traverse device list */
+ STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
+SBP_DEBUG(0)
+ printf("sbp_post_explore: EUI:%08x%08x ",
+ fwdev->eui.hi, fwdev->eui.lo);
+ if (fwdev->status != FWDEVATTACHED)
+ printf("not attached, state=%d.\n", fwdev->status);
+ else
+ printf("attached\n");
+END_DEBUG
+ alive = SBP_FWDEV_ALIVE(fwdev);
+ for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
+ target = &sbp->targets[i];
+ if(target->fwdev == fwdev ) {
+ /* known target */
+ break;
+ }
+ }
+ if(i == SBP_NUM_TARGETS){
+ if (alive) {
+ /* new target */
+ target = sbp_alloc_target(sbp, fwdev);
+ if (target == NULL)
+ continue;
+ } else {
+ continue;
+ }
+ }
+ sbp_probe_target((void *)target);
+ if (target->num_lun == 0)
+ sbp_free_target(target);
+ }
+ xpt_release_simq(sbp->sim, /*run queue*/TRUE);
+ sbp->sim->flags &= ~SIMQ_FREEZED;
+}
+
+#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_reset_start_callback(struct fw_xfer *xfer)
+{
+ struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
+ struct sbp_target *target = sdev->target;
+ int i;
+
+ if (xfer->resp != 0) {
+ sbp_show_sdev_info(sdev, 2);
+ printf("sbp_reset_start failed: resp=%d\n", xfer->resp);
+ }
+
+ for (i = 0; i < target->num_lun; i++) {
+ tsdev = target->luns[i];
+ if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
+ sbp_login(tsdev);
+ }
+}
+
+static void
+sbp_reset_start(struct sbp_dev *sdev)
+{
+ struct fw_xfer *xfer;
+ struct fw_pkt *fp;
+
+SBP_DEBUG(0)
+ 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_reset_start_callback;
+ fp = &xfer->send.hdr;
+ fp->mode.wreqq.dest_hi = 0xffff;
+ fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
+ fp->mode.wreqq.data = htonl(0xf);
+ fw_asyreq(xfer->fc, -1, xfer);
+}
+
+static void
+sbp_mgm_callback(struct fw_xfer *xfer)
+{
+ struct sbp_dev *sdev;
+ int resp;
+
+ sdev = (struct sbp_dev *)xfer->sc;
+
+SBP_DEBUG(1)
+ sbp_show_sdev_info(sdev, 2);
+ printf("sbp_mgm_callback\n");
+END_DEBUG
+ resp = xfer->resp;
+ sbp_xfer_free(xfer);
+#if 0
+ if (resp != 0) {
+ sbp_show_sdev_info(sdev, 2);
+ printf("management ORB failed(%d) ... RESET_START\n", resp);
+ sbp_reset_start(sdev);
+ }
+#endif
+ return;
+}
+
+static struct sbp_dev *
+sbp_next_dev(struct sbp_target *target, int lun)
+{
+ struct sbp_dev **sdevp;
+ int i;
+
+ for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
+ i++, sdevp++)
+ if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
+ return(*sdevp);
+ return(NULL);
+}
+
+#define SCAN_PRI 1
+static void
+sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
+{
+ struct sbp_target *target;
+ struct sbp_dev *sdev;
+
+ sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
+ target = sdev->target;
+SBP_DEBUG(0)
+ 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 / 1000,
+ sbp_cam_scan_target, (void *)sdev->target);
+}
+
+static void
+sbp_do_attach(struct fw_xfer *xfer)
+{
+ struct sbp_dev *sdev;
+ struct sbp_target *target;
+ struct sbp_softc *sbp;
+
+ sdev = (struct sbp_dev *)xfer->sc;
+ target = sdev->target;
+ sbp = target->sbp;
+SBP_DEBUG(0)
+ 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("%s\n", __func__);
+END_DEBUG
+ if (xfer->resp != 0) {
+ sbp_show_sdev_info(sdev, 2);
+ printf("%s: resp=%d\n", __func__, xfer->resp);
+ }
+
+ 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 || sdev->status == SBP_DEV_PROBE)
+ xfer->act.hand = sbp_agent_reset_callback;
+ else
+ xfer->act.hand = sbp_do_attach;
+ fp = &xfer->send.hdr;
+ fp->mode.wreqq.data = htonl(0xf);
+ fw_asyreq(xfer->fc, -1, xfer);
+ sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
+}
+
+static void
+sbp_busy_timeout_callback(struct fw_xfer *xfer)
+{
+ struct sbp_dev *sdev;
+
+ sdev = (struct sbp_dev *)xfer->sc;
+SBP_DEBUG(1)
+ 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 = &xfer->send.hdr;
+ fp->mode.wreqq.dest_hi = 0xffff;
+ fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
+ fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
+ fw_asyreq(xfer->fc, -1, xfer);
+}
+
+static void
+sbp_orb_pointer_callback(struct fw_xfer *xfer)
+{
+ struct sbp_dev *sdev;
+ sdev = (struct sbp_dev *)xfer->sc;
+
+SBP_DEBUG(1)
+ sbp_show_sdev_info(sdev, 2);
+ printf("%s\n", __func__);
+END_DEBUG
+ if (xfer->resp != 0) {
+ /* XXX */
+ printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
+ }
+ sbp_xfer_free(xfer);
+ sdev->flags &= ~ORB_POINTER_ACTIVE;
+
+ if ((sdev->flags & ORB_POINTER_NEED) != 0) {
+ struct sbp_ocb *ocb;
+
+ sdev->flags &= ~ORB_POINTER_NEED;
+ ocb = STAILQ_FIRST(&sdev->ocbs);
+ if (ocb != NULL)
+ sbp_orb_pointer(sdev, ocb);
+ }
+ return;
+}
+
+static void
+sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
+{
+ struct fw_xfer *xfer;
+ struct fw_pkt *fp;
+SBP_DEBUG(1)
+ sbp_show_sdev_info(sdev, 2);
+ printf("%s: 0x%08x\n", __func__, (uint32_t)ocb->bus_addr);
+END_DEBUG
+
+ if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
+SBP_DEBUG(0)
+ printf("%s: orb pointer active\n", __func__);
+END_DEBUG
+ sdev->flags |= ORB_POINTER_NEED;
+ return;
+ }
+
+ sdev->flags |= ORB_POINTER_ACTIVE;
+ xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
+ if (xfer == NULL)
+ return;
+ xfer->act.hand = sbp_orb_pointer_callback;
+
+ fp = &xfer->send.hdr;
+ fp->mode.wreqb.len = 8;
+ fp->mode.wreqb.extcode = 0;
+ xfer->send.payload[0] =
+ htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
+ xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
+
+ if(fw_asyreq(xfer->fc, -1, xfer) != 0){
+ sbp_xfer_free(xfer);
+ ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
+ xpt_done(ocb->ccb);
+ }
+}
+
+static void
+sbp_doorbell_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_doorbell_callback\n");
+END_DEBUG
+ if (xfer->resp != 0) {
+ /* XXX */
+ printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
+ }
+ sbp_xfer_free(xfer);
+ sdev->flags &= ~ORB_DOORBELL_ACTIVE;
+ if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
+ sdev->flags &= ~ORB_DOORBELL_NEED;
+ sbp_doorbell(sdev);
+ }
+ return;
+}
+
+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
+
+ if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
+ sdev->flags |= ORB_DOORBELL_NEED;
+ return;
+ }
+ sdev->flags |= ORB_DOORBELL_ACTIVE;
+ xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
+ if (xfer == NULL)
+ return;
+ xfer->act.hand = sbp_doorbell_callback;
+ fp = &xfer->send.hdr;
+ fp->mode.wreqq.data = htonl(0xf);
+ fw_asyreq(xfer->fc, -1, xfer);
+}
+
+static struct fw_xfer *
+sbp_write_cmd(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, 8, 0);
+ if(xfer == NULL){
+ printf("sbp: fw_xfer_alloc_buf failed\n");
+ splx(s);
+ return NULL;
+ }
+ target->n_xfer ++;
+ if (debug)
+ printf("sbp: alloc %d xfer\n", target->n_xfer);
+ new = 1;
+ } else {
+ STAILQ_REMOVE_HEAD(&target->xferlist, link);
+ }
+ splx(s);
+
+ microtime(&xfer->tv);
+
+ if (new) {
+ xfer->recv.pay_len = 0;
+ xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
+ xfer->fc = sdev->target->sbp->fd.fc;
+ xfer->retry_req = fw_asybusy;
+ }
+
+ if (tcode == FWTCODE_WREQB)
+ xfer->send.pay_len = 8;
+ else
+ xfer->send.pay_len = 0;
+
+ xfer->sc = (caddr_t)sdev;
+ fp = &xfer->send.hdr;
+ fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
+ fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
+ fp->mode.wreqq.tlrt = 0;
+ fp->mode.wreqq.tcode = tcode;
+ fp->mode.wreqq.pri = 0;
+ fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
+
+ return xfer;
+
+}
+
+static 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);
+ /* XXX */
+ return;
+ }
+ ocb->flags = OCB_ACT_MGM;
+ ocb->sdev = sdev;
+
+ bzero((void *)ocb->orb, sizeof(ocb->orb));
+ ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
+ ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
+
+SBP_DEBUG(0)
+ 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[0] = ocb->orb[1] = 0; /* password */
+ ocb->orb[2] = htonl(nid << 16);
+ ocb->orb[3] = htonl(sdev->dma.bus_addr);
+ ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
+ if (ex_login)
+ ocb->orb[4] |= htonl(ORB_EXV);
+ ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
+ fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
+ break;
+ case ORB_FUN_ATA:
+ ocb->orb[0] = htonl((0 << 16) | 0);
+ ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
+ /* fall through */
+ case ORB_FUN_RCN:
+ case ORB_FUN_LGO:
+ case ORB_FUN_LUR:
+ case ORB_FUN_RST:
+ case ORB_FUN_ATS:
+ ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
+ break;
+ }
+
+ if (target->mgm_ocb_cur != NULL) {
+ /* there is a standing ORB */
+ 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_mgm_timeout, (caddr_t)ocb);
+ xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
+ if(xfer == NULL){
+ return;
+ }
+ xfer->act.hand = sbp_mgm_callback;
+
+ fp = &xfer->send.hdr;
+ fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
+ fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
+ fp->mode.wreqb.len = 8;
+ fp->mode.wreqb.extcode = 0;
+ xfer->send.payload[0] = htonl(nid << 16);
+ xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
+SBP_DEBUG(0)
+ sbp_show_sdev_info(sdev, 2);
+ printf("mgm orb: %08x\n", (uint32_t)ocb->bus_addr);
+END_DEBUG
+
+ 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;
+
+ bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
+
+ if (sbp_status->len <= 1)
+ /* XXX not scsi status. shouldn't be happened */
+ sense->extra_len = 0;
+ else if (sbp_status->len <= 4)
+ /* add_sense_code(_qual), info, cmd_spec_info */
+ sense->extra_len = 6;
+ else
+ /* fru, sense_key_spec */
+ sense->extra_len = 10;
+
+ bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
+
+ sense->add_sense_code = sbp_cmd_status->s_code;
+ sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
+ sense->fru = sbp_cmd_status->fru;
+
+ bcopy(&sbp_cmd_status->s_keydep[0],
+ &sense->sense_key_spec[0], 3);
+
+ ocb->ccb->csio.scsi_status = sbp_cmd_status->status;;
+ ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
+ | CAM_AUTOSNS_VALID;
+/*
+{
+ uint8_t j, *tmp;
+ tmp = sense;
+ for( j = 0 ; j < 32 ; j+=8){
+ printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
+ tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
+ tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
+ }
+
+}
+*/
+ break;
+ default:
+ 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:
+#if 0
+ /*
+ * XXX Convert Direct Access device to RBC.
+ * I've never seen FireWire DA devices which support READ_6.
+ */
+ if (SID_TYPE(inq) == T_DIRECT)
+ inq->device |= T_RBC; /* T_DIRECT == 0 */
+#endif
+ /* fall through */
+ case T_RBC:
+ /*
+ * Override vendor/product/revision information.
+ * Some devices sometimes return strange strings.
+ */
+#if 1
+ bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
+ bcopy(sdev->product, inq->product, sizeof(inq->product));
+ bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
+#endif
+ break;
+ }
+ /*
+ * Force to enable/disable tagged queuing.
+ * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
+ */
+ if (sbp_tags > 0)
+ inq->flags |= SID_CmdQue;
+ else if (sbp_tags < 0)
+ inq->flags &= ~SID_CmdQue;
+
+}
+
+static void
+sbp_recv1(struct fw_xfer *xfer)
+{
+ struct fw_pkt *rfp;
+#if NEED_RESPONSE
+ struct fw_pkt *sfp;
+#endif
+ struct sbp_softc *sbp;
+ struct sbp_dev *sdev;
+ struct sbp_ocb *ocb;
+ struct sbp_login_res *login_res = NULL;
+ struct sbp_status *sbp_status;
+ struct sbp_target *target;
+ int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
+ uint32_t addr;
+/*
+ uint32_t *ld;
+ ld = xfer->recv.buf;
+printf("sbp %x %d %d %08x %08x %08x %08x\n",
+ xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
+printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
+printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
+*/
+ sbp = (struct sbp_softc *)xfer->sc;
+ if (xfer->resp != 0){
+ printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
+ goto done0;
+ }
+ if (xfer->recv.payload == NULL){
+ printf("sbp_recv: xfer->recv.payload == NULL\n");
+ goto done0;
+ }
+ rfp = &xfer->recv.hdr;
+ if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
+ printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
+ goto done0;
+ }
+ sbp_status = (struct sbp_status *)xfer->recv.payload;
+ addr = rfp->mode.wreqb.dest_lo;
+SBP_DEBUG(2)
+ printf("received address 0x%x\n", addr);
+END_DEBUG
+ t = SBP_ADDR2TRG(addr);
+ if (t >= SBP_NUM_TARGETS) {
+ device_printf(sbp->fd.dev,
+ "sbp_recv1: invalid target %d\n", t);
+ goto done0;
+ }
+ target = &sbp->targets[t];
+ l = SBP_ADDR2LUN(addr);
+ if (l >= target->num_lun || target->luns[l] == NULL) {
+ device_printf(sbp->fd.dev,
+ "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
+ goto done0;
+ }
+ sdev = target->luns[l];
+
+ ocb = NULL;
+ switch (sbp_status->src) {
+ case 0:
+ case 1:
+ /* check mgm_ocb_cur first */
+ ocb = target->mgm_ocb_cur;
+ if (ocb != NULL) {
+ if (OCB_MATCH(ocb, sbp_status)) {
+ callout_stop(&target->mgm_ocb_timeout);
+ target->mgm_ocb_cur = NULL;
+ break;
+ }
+ }
+ ocb = sbp_dequeue_ocb(sdev, sbp_status);
+ if (ocb == NULL) {
+ sbp_show_sdev_info(sdev, 2);
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ printf("No ocb(%lx) on the queue\n",
+#else
+ printf("No ocb(%x) 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 > 2){
+ int status;
+SBP_DEBUG(0)
+ sbp_show_sdev_info(sdev, 2);
+ printf("ORB status src:%x resp:%x dead:%x"
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ " len:%x stat:%x orb:%x%08lx\n",
+#else
+ " len:%x stat:%x orb:%x%08x\n",
+#endif
+ 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;
+
+ switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
+ case ORB_FMT_NOP:
+ break;
+ case ORB_FMT_VED:
+ break;
+ case ORB_FMT_STD:
+ switch(ocb->flags) {
+ case OCB_ACT_MGM:
+ orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
+ reset_agent = 0;
+ switch(orb_fun) {
+ case ORB_FUN_LGI:
+ fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
+ login_res = sdev->login;
+ login_res->len = ntohs(login_res->len);
+ login_res->id = ntohs(login_res->id);
+ login_res->cmd_hi = ntohs(login_res->cmd_hi);
+ login_res->cmd_lo = ntohl(login_res->cmd_lo);
+ if (status_valid) {
+SBP_DEBUG(0)
+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:
+ sdev->timeout = 0;
+ if(ocb->ccb != NULL){
+ union ccb *ccb;
+/*
+ uint32_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;
+ }
+ }
+
+ if (!use_doorbell)
+ sbp_free_ocb(sdev, ocb);
+done:
+ if (reset_agent)
+ sbp_agent_reset(sdev);
+
+done0:
+ xfer->recv.pay_len = SBP_RECV_LEN;
+/* The received packet is usually small enough to be stored within
+ * the buffer. In that case, the controller return ack_complete and
+ * no respose is necessary.
+ *
+ * XXX fwohci.c and firewire.c should inform event_code such as
+ * ack_complete or ack_pending to upper driver.
+ */
+#if NEED_RESPONSE
+ xfer->send.off = 0;
+ sfp = (struct fw_pkt *)xfer->send.buf;
+ sfp->mode.wres.dst = rfp->mode.wreqb.src;
+ xfer->dst = sfp->mode.wres.dst;
+ xfer->spd = min(sdev->target->fwdev->speed, max_speed);
+ xfer->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 */
+ 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);
+
+ if (max_speed < 0)
+ max_speed = sbp->fd.fc->speed;
+
+ 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,
+#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
+ /*lockfunc*/busdma_lock_mutex,
+ /*lockarg*/&Giant,
+#endif
+ &sbp->dmat);
+ if (error != 0) {
+ printf("sbp_attach: Could not allocate DMA tag "
+ "- error %d\n", error);
+ return (ENOMEM);
+ }
+
+ devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
+ if (devq == NULL)
+ return (ENXIO);
+
+ for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
+ sbp->targets[i].fwdev = NULL;
+ sbp->targets[i].luns = NULL;
+ }
+
+ sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
+ device_get_unit(dev),
+ /*untagged*/ 1,
+ /*tagged*/ SBP_QUEUE_LEN - 1,
+ 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) {
+ xpt_bus_deregister(cam_sim_path(sbp->sim));
+ goto fail;
+ }
+
+ /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
+ sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
+ sbp->fwb.end = sbp->fwb.start + 0xffff;
+ 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,
+ /* send */0,
+ /* 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_busreset((void *)sbp);
+ sbp_post_explore((void *)sbp);
+ splx(s);
+ }
+ xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
+
+ 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];
+ if (sdev == NULL)
+ continue;
+ callout_stop(&sdev->login_callout);
+ if (sdev->status >= SBP_DEV_TOATTACH &&
+ sdev->status <= SBP_DEV_ATTACHED)
+ sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
+ }
+ }
+
+ return 0;
+}
+
+static int
+sbp_shutdown(device_t dev)
+{
+ struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
+
+ sbp_logout_all(sbp);
+ return (0);
+}
+
+static void
+sbp_free_sdev(struct sbp_dev *sdev)
+{
+ int i;
+
+ if (sdev == NULL)
+ return;
+ for (i = 0; i < SBP_QUEUE_LEN; i++)
+ bus_dmamap_destroy(sdev->target->sbp->dmat,
+ sdev->ocb[i].dmamap);
+ fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
+ free(sdev, M_SBP);
+}
+
+static void
+sbp_free_target(struct sbp_target *target)
+{
+ struct sbp_softc *sbp;
+ struct fw_xfer *xfer, *next;
+ int i;
+
+ if (target->luns == NULL)
+ return;
+ callout_stop(&target->mgm_ocb_timeout);
+ sbp = target->sbp;
+ for (i = 0; i < target->num_lun; i++)
+ sbp_free_sdev(target->luns[i]);
+
+ for (xfer = STAILQ_FIRST(&target->xferlist);
+ xfer != NULL; xfer = next) {
+ next = STAILQ_NEXT(xfer, link);
+ fw_xfer_free_buf(xfer);
+ }
+ STAILQ_INIT(&target->xferlist);
+ free(target->luns, M_SBP);
+ target->num_lun = 0;;
+ target->luns = NULL;
+ target->fwdev = NULL;
+}
+
+static int
+sbp_detach(device_t dev)
+{
+ struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
+ struct firewire_comm *fc = sbp->fd.fc;
+ struct fw_xfer *xfer, *next;
+ int i;
+
+SBP_DEBUG(0)
+ printf("sbp_detach\n");
+END_DEBUG
+
+ for (i = 0; i < SBP_NUM_TARGETS; i ++)
+ sbp_cam_detach_target(&sbp->targets[i]);
+ xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
+ xpt_free_path(sbp->path);
+ xpt_bus_deregister(cam_sim_path(sbp->sim));
+ cam_sim_free(sbp->sim, /*free_devq*/ TRUE),
+
+ sbp_logout_all(sbp);
+
+ /* XXX wait for logout completion */
+ tsleep(&i, FWPRI, "sbpdtc", hz/2);
+
+ for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
+ sbp_free_target(&sbp->targets[i]);
+
+ for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
+ xfer != NULL; xfer = next) {
+ next = STAILQ_NEXT(xfer, link);
+ fw_xfer_free_buf(xfer);
+ }
+ STAILQ_INIT(&sbp->fwb.xferlist);
+ fw_bindremove(fc, &sbp->fwb);
+
+ bus_dma_tag_destroy(sbp->dmat);
+
+ return (0);
+}
+
+static void
+sbp_cam_detach_sdev(struct sbp_dev *sdev)
+{
+ if (sdev == NULL)
+ return;
+ if (sdev->status == SBP_DEV_DEAD)
+ return;
+ if (sdev->status == SBP_DEV_RESET)
+ return;
+ if (sdev->path) {
+ xpt_release_devq(sdev->path,
+ sdev->freeze, TRUE);
+ sdev->freeze = 0;
+ xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
+ xpt_free_path(sdev->path);
+ sdev->path = NULL;
+ }
+ sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
+}
+
+static void
+sbp_cam_detach_target(struct sbp_target *target)
+{
+ int i;
+
+ if (target->luns != NULL) {
+SBP_DEBUG(0)
+ printf("sbp_detach_target %d\n", target->target_id);
+END_DEBUG
+ callout_stop(&target->scan_callout);
+ for (i = 0; i < target->num_lun; i++)
+ sbp_cam_detach_sdev(target->luns[i]);
+ }
+}
+
+static void
+sbp_target_reset(struct sbp_dev *sdev, int method)
+{
+ int i;
+ struct sbp_target *target = sdev->target;
+ struct sbp_dev *tsdev;
+
+ for (i = 0; i < target->num_lun; i++) {
+ tsdev = target->luns[i];
+ if (tsdev == NULL)
+ continue;
+ if (tsdev->status == SBP_DEV_DEAD)
+ continue;
+ if (tsdev->status == SBP_DEV_RESET)
+ continue;
+ xpt_freeze_devq(tsdev->path, 1);
+ tsdev->freeze ++;
+ sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
+ if (method == 2)
+ tsdev->status = SBP_DEV_LOGIN;
+ }
+ switch(method) {
+ case 1:
+ printf("target reset\n");
+ sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
+ break;
+ case 2:
+ printf("reset start\n");
+ sbp_reset_start(sdev);
+ break;
+ }
+
+}
+
+static void
+sbp_mgm_timeout(void *arg)
+{
+ struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
+ struct sbp_dev *sdev = ocb->sdev;
+ struct sbp_target *target = sdev->target;
+
+ sbp_show_sdev_info(sdev, 2);
+ printf("request timeout(mgm orb:0x%08x) ... ",
+ (uint32_t)ocb->bus_addr);
+ target->mgm_ocb_cur = NULL;
+ sbp_free_ocb(sdev, ocb);
+#if 0
+ /* XXX */
+ printf("run next request\n");
+ sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
+#endif
+#if 1
+ printf("reset start\n");
+ sbp_reset_start(sdev);
+#endif
+}
+
+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(cmd orb:0x%08x) ... ",
+ (uint32_t)ocb->bus_addr);
+
+ sdev->timeout ++;
+ switch(sdev->timeout) {
+ case 1:
+ printf("agent reset\n");
+ xpt_freeze_devq(sdev->path, 1);
+ sdev->freeze ++;
+ sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
+ sbp_agent_reset(sdev);
+ break;
+ case 2:
+ case 3:
+ sbp_target_reset(sdev, sdev->timeout - 1);
+ break;
+#if 0
+ default:
+ /* XXX give up */
+ sbp_cam_detach_target(target);
+ if (target->luns != NULL)
+ free(target->luns, M_SBP);
+ target->num_lun = 0;;
+ target->luns = NULL;
+ target->fwdev = NULL;
+#endif
+ }
+}
+
+static void
+sbp_action1(struct cam_sim *sim, union ccb *ccb)
+{
+
+ struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
+ struct sbp_target *target = NULL;
+ struct sbp_dev *sdev = NULL;
+
+ /* target:lun -> sdev mapping */
+ if (sbp != NULL
+ && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
+ && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
+ target = &sbp->targets[ccb->ccb_h.target_id];
+ if (target->fwdev != NULL
+ && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
+ && ccb->ccb_h.target_lun < target->num_lun) {
+ sdev = target->luns[ccb->ccb_h.target_lun];
+ if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
+ sdev->status != SBP_DEV_PROBE)
+ sdev = NULL;
+ }
+ }
+
+SBP_DEBUG(1)
+ if (sdev == NULL)
+ printf("invalid target %d lun %d\n",
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
+END_DEBUG
+
+ switch (ccb->ccb_h.func_code) {
+ case XPT_SCSI_IO:
+ case XPT_RESET_DEV:
+ case XPT_GET_TRAN_SETTINGS:
+ case XPT_SET_TRAN_SETTINGS:
+ case XPT_CALC_GEOMETRY:
+ if (sdev == NULL) {
+SBP_DEBUG(1)
+ printf("%s:%d:%d:func_code 0x%04x: "
+ "Invalid target (target needed)\n",
+ device_get_nameunit(sbp->fd.dev),
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
+ ccb->ccb_h.func_code);
+END_DEBUG
+
+ ccb->ccb_h.status = CAM_DEV_NOT_THERE;
+ xpt_done(ccb);
+ return;
+ }
+ break;
+ case XPT_PATH_INQ:
+ case XPT_NOOP:
+ /* The opcodes sometimes aimed at a target (sc is valid),
+ * sometimes aimed at the SIM (sc is invalid and target is
+ * CAM_TARGET_WILDCARD)
+ */
+ if (sbp == NULL &&
+ ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
+SBP_DEBUG(0)
+ printf("%s:%d:%d func_code 0x%04x: "
+ "Invalid target (no wildcard)\n",
+ device_get_nameunit(sbp->fd.dev),
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
+ ccb->ccb_h.func_code);
+END_DEBUG
+ ccb->ccb_h.status = CAM_DEV_NOT_THERE;
+ xpt_done(ccb);
+ return;
+ }
+ break;
+ default:
+ /* XXX Hm, we should check the input parameters */
+ break;
+ }
+
+ switch (ccb->ccb_h.func_code) {
+ case XPT_SCSI_IO:
+ {
+ struct ccb_scsiio *csio;
+ struct sbp_ocb *ocb;
+ int speed;
+ void *cdb;
+
+ csio = &ccb->csio;
+
+SBP_DEBUG(2)
+ printf("%s:%d:%d XPT_SCSI_IO: "
+ "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
+ ", flags: 0x%02x, "
+ "%db cmd/%db data/%db sense\n",
+ device_get_nameunit(sbp->fd.dev),
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
+ csio->cdb_io.cdb_bytes[0],
+ csio->cdb_io.cdb_bytes[1],
+ csio->cdb_io.cdb_bytes[2],
+ csio->cdb_io.cdb_bytes[3],
+ csio->cdb_io.cdb_bytes[4],
+ csio->cdb_io.cdb_bytes[5],
+ csio->cdb_io.cdb_bytes[6],
+ csio->cdb_io.cdb_bytes[7],
+ csio->cdb_io.cdb_bytes[8],
+ csio->cdb_io.cdb_bytes[9],
+ ccb->ccb_h.flags & CAM_DIR_MASK,
+ csio->cdb_len, csio->dxfer_len,
+ csio->sense_len);
+END_DEBUG
+ if(sdev == NULL){
+ ccb->ccb_h.status = CAM_DEV_NOT_THERE;
+ xpt_done(ccb);
+ return;
+ }
+#if 0
+ /* if we are in probe stage, pass only probe commands */
+ if (sdev->status == SBP_DEV_PROBE) {
+ char *name;
+ name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
+ printf("probe stage, periph name: %s\n", name);
+ if (strcmp(name, "probe") != 0) {
+ ccb->ccb_h.status = CAM_REQUEUE_REQ;
+ xpt_done(ccb);
+ return;
+ }
+ }
+#endif
+ if ((ocb = sbp_get_ocb(sdev)) == NULL) {
+ ccb->ccb_h.status = CAM_REQUEUE_REQ;
+ if (sdev->freeze == 0) {
+ xpt_freeze_devq(sdev->path, 1);
+ sdev->freeze ++;
+ }
+ xpt_done(ccb);
+ return;
+ }
+
+ ocb->flags = OCB_ACT_CMD;
+ ocb->sdev = sdev;
+ ocb->ccb = ccb;
+ ccb->ccb_h.ccb_sdev_ptr = sdev;
+ ocb->orb[0] = htonl(1 << 31);
+ ocb->orb[1] = 0;
+ ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
+ ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
+ speed = min(target->fwdev->speed, max_speed);
+ ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
+ | ORB_CMD_MAXP(speed + 7));
+ if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
+ ocb->orb[4] |= htonl(ORB_CMD_IN);
+ }
+
+ if (csio->ccb_h.flags & CAM_SCATTER_VALID)
+ printf("sbp: CAM_SCATTER_VALID\n");
+ if (csio->ccb_h.flags & CAM_DATA_PHYS)
+ printf("sbp: CAM_DATA_PHYS\n");
+
+ if (csio->ccb_h.flags & CAM_CDB_POINTER)
+ cdb = (void *)csio->cdb_io.cdb_ptr;
+ else
+ cdb = (void *)&csio->cdb_io.cdb_bytes;
+ bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
+/*
+printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
+printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
+*/
+ if (ccb->csio.dxfer_len > 0) {
+ int s, error;
+
+ s = splsoftvm();
+ error = bus_dmamap_load(/*dma tag*/sbp->dmat,
+ /*dma map*/ocb->dmamap,
+ ccb->csio.data_ptr,
+ ccb->csio.dxfer_len,
+ sbp_execute_ocb,
+ ocb,
+ /*flags*/0);
+ splx(s);
+ if (error)
+ printf("sbp: bus_dmamap_load error %d\n", error);
+ } else
+ sbp_execute_ocb(ocb, NULL, 0, 0);
+ break;
+ }
+ case XPT_CALC_GEOMETRY:
+ {
+ struct ccb_calc_geometry *ccg;
+#if defined(__DragonFly__) || __FreeBSD_version < 501100
+ uint32_t size_mb;
+ uint32_t secs_per_cylinder;
+ int extended = 1;
+#endif
+
+ ccg = &ccb->ccg;
+ if (ccg->block_size == 0) {
+ printf("sbp_action1: block_size is 0.\n");
+ ccb->ccb_h.status = CAM_REQ_INVALID;
+ xpt_done(ccb);
+ break;
+ }
+SBP_DEBUG(1)
+ printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ "Volume size = %d\n",
+#else
+ "Volume size = %jd\n",
+#endif
+ device_get_nameunit(sbp->fd.dev),
+ cam_sim_path(sbp->sim),
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
+#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
+ (uintmax_t)
+#endif
+ ccg->volume_size);
+END_DEBUG
+
+#if defined(__DragonFly__) || __FreeBSD_version < 501100
+ size_mb = ccg->volume_size
+ / ((1024L * 1024L) / ccg->block_size);
+
+ if (size_mb > 1024 && extended) {
+ ccg->heads = 255;
+ ccg->secs_per_track = 63;
+ } else {
+ ccg->heads = 64;
+ ccg->secs_per_track = 32;
+ }
+ secs_per_cylinder = ccg->heads * ccg->secs_per_track;
+ ccg->cylinders = ccg->volume_size / secs_per_cylinder;
+ ccb->ccb_h.status = CAM_REQ_CMP;
+#else
+ cam_calc_geometry(ccg, /*extended*/1);
+#endif
+ xpt_done(ccb);
+ break;
+ }
+ case XPT_RESET_BUS: /* Reset the specified SCSI bus */
+ {
+
+SBP_DEBUG(1)
+ printf("%s:%d:XPT_RESET_BUS: \n",
+ device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
+END_DEBUG
+
+ ccb->ccb_h.status = CAM_REQ_INVALID;
+ xpt_done(ccb);
+ break;
+ }
+ case XPT_PATH_INQ: /* Path routing inquiry */
+ {
+ struct ccb_pathinq *cpi = &ccb->cpi;
+
+SBP_DEBUG(1)
+ printf("%s:%d:%d XPT_PATH_INQ:.\n",
+ device_get_nameunit(sbp->fd.dev),
+ ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
+END_DEBUG
+ cpi->version_num = 1; /* XXX??? */
+ cpi->hba_inquiry = PI_TAG_ABLE;
+ cpi->target_sprt = 0;
+ cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
+ cpi->hba_eng_cnt = 0;
+ cpi->max_target = SBP_NUM_TARGETS - 1;
+ cpi->max_lun = SBP_NUM_LUNS - 1;
+ cpi->initiator_id = SBP_INITIATOR;
+ cpi->bus_id = sim->bus_id;
+ cpi->base_transfer_speed = 400 * 1000 / 8;
+ strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
+ strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
+ strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
+ cpi->unit_number = sim->unit_number;
+
+ cpi->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(2)
+ printf("sbp_execute_ocb: seg %d", seg);
+ for (i = 0; i < seg; i++)
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
+#else
+ printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
+ (uintmax_t)segments[i].ds_len);
+#endif
+ printf("\n");
+END_DEBUG
+
+ if (seg == 1) {
+ /* direct pointer */
+ s = &segments[0];
+ if (s->ds_len > SBP_SEG_MAX)
+ panic("ds_len > SBP_SEG_MAX, fix busdma code");
+ ocb->orb[3] = htonl(s->ds_addr);
+ ocb->orb[4] |= htonl(s->ds_len);
+ } else if(seg > 1) {
+ /* page table */
+ for (i = 0; i < seg; i++) {
+ s = &segments[i];
+SBP_DEBUG(0)
+ /* XXX LSI Logic "< 16 byte" bug might be hit */
+ if (s->ds_len < 16)
+ printf("sbp_execute_ocb: warning, "
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ "segment length(%d) is less than 16."
+#else
+ "segment length(%zd) is less than 16."
+#endif
+ "(seg=%d/%d)\n", s->ds_len, i+1, seg);
+END_DEBUG
+ if (s->ds_len > SBP_SEG_MAX)
+ panic("ds_len > SBP_SEG_MAX, fix busdma code");
+ ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
+ ocb->ind_ptr[i].lo = htonl(s->ds_addr);
+ }
+ ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
+ }
+
+ if (seg > 0)
+ bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
+ (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
+ BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
+ prev = sbp_enqueue_ocb(ocb->sdev, ocb);
+ fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
+ if (use_doorbell) {
+ if (prev == NULL) {
+ if (ocb->sdev->last_ocb != NULL)
+ sbp_doorbell(ocb->sdev);
+ else
+ sbp_orb_pointer(ocb->sdev, ocb);
+ }
+ } else {
+ if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
+ ocb->sdev->flags &= ~ORB_LINK_DEAD;
+ sbp_orb_pointer(ocb->sdev, ocb);
+ }
+ }
+}
+
+static void
+sbp_poll(struct cam_sim *sim)
+{
+ struct sbp_softc *sbp;
+ struct firewire_comm *fc;
+
+ sbp = (struct sbp_softc *)sim->softc;
+ fc = sbp->fd.fc;
+
+ fc->poll(fc, 0, -1);
+
+ return;
+}
+
+static struct sbp_ocb *
+sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
+{
+ struct sbp_ocb *ocb;
+ struct sbp_ocb *next;
+ int s = splfw(), order = 0;
+ int flags;
+
+SBP_DEBUG(1)
+ sbp_show_sdev_info(sdev, 2);
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ printf("%s: 0x%08lx src %d\n",
+#else
+ printf("%s: 0x%08x src %d\n",
+#endif
+ __func__, ntohl(sbp_status->orb_lo), sbp_status->src);
+END_DEBUG
+ for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
+ next = STAILQ_NEXT(ocb, ocb);
+ flags = ocb->flags;
+ if (OCB_MATCH(ocb, sbp_status)) {
+ /* found */
+ STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
+ if (ocb->ccb != NULL)
+ untimeout(sbp_timeout, (caddr_t)ocb,
+ ocb->ccb->ccb_h.timeout_ch);
+ if (ntohl(ocb->orb[4]) & 0xffff) {
+ bus_dmamap_sync(sdev->target->sbp->dmat,
+ ocb->dmamap,
+ (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
+ BUS_DMASYNC_POSTREAD :
+ BUS_DMASYNC_POSTWRITE);
+ bus_dmamap_unload(sdev->target->sbp->dmat,
+ ocb->dmamap);
+ }
+ if (!use_doorbell) {
+ if (sbp_status->src == SRC_NO_NEXT) {
+ if (next != NULL)
+ sbp_orb_pointer(sdev, next);
+ else if (order > 0) {
+ /*
+ * Unordered execution
+ * We need to send pointer for
+ * next ORB
+ */
+ sdev->flags |= ORB_LINK_DEAD;
+ }
+ }
+ } else {
+ /*
+ * XXX this is not correct for unordered
+ * execution.
+ */
+ if (sdev->last_ocb != NULL)
+ sbp_free_ocb(sdev, sdev->last_ocb);
+ sdev->last_ocb = ocb;
+ if (next != NULL &&
+ sbp_status->src == SRC_NO_NEXT)
+ sbp_doorbell(sdev);
+ }
+ 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, *prev2;
+
+SBP_DEBUG(1)
+ sbp_show_sdev_info(sdev, 2);
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ printf("%s: 0x%08x\n", __func__, ocb->bus_addr);
+#else
+ printf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr);
+#endif
+END_DEBUG
+ prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
+ STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
+
+ if (ocb->ccb != NULL)
+ ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
+ (ocb->ccb->ccb_h.timeout * hz) / 1000);
+
+ if (use_doorbell && prev == NULL)
+ prev2 = sdev->last_ocb;
+
+ if (prev2 != NULL) {
+SBP_DEBUG(2)
+#if defined(__DragonFly__) || __FreeBSD_version < 500000
+ printf("linking chain 0x%x -> 0x%x\n",
+ prev2->bus_addr, ocb->bus_addr);
+#else
+ printf("linking chain 0x%jx -> 0x%jx\n",
+ (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
+#endif
+END_DEBUG
+ prev2->orb[1] = htonl(ocb->bus_addr);
+ prev2->orb[0] = 0;
+ }
+ splx(s);
+
+ return prev;
+}
+
+static struct sbp_ocb *
+sbp_get_ocb(struct sbp_dev *sdev)
+{
+ struct sbp_ocb *ocb;
+ int s = splfw();
+ ocb = STAILQ_FIRST(&sdev->free_ocbs);
+ if (ocb == NULL) {
+ sdev->flags |= ORB_SHORTAGE;
+ 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);
+ if ((sdev->flags & ORB_SHORTAGE) != 0) {
+ int count;
+
+ sdev->flags &= ~ORB_SHORTAGE;
+ count = sdev->freeze;
+ sdev->freeze = 0;
+ xpt_release_devq(sdev->path, count, TRUE);
+ }
+}
+
+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 defined(__DragonFly__) || __FreeBSD_version < 500000
+ printf("sbp_abort_ocb 0x%x\n", ocb->bus_addr);
+#else
+ printf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
+#endif
+END_DEBUG
+SBP_DEBUG(1)
+ if (ocb->ccb != NULL)
+ sbp_print_scsi_cmd(ocb);
+END_DEBUG
+ if (ntohl(ocb->orb[4]) & 0xffff) {
+ bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
+ (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
+ BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
+ bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
+ }
+ if (ocb->ccb != NULL) {
+ untimeout(sbp_timeout, (caddr_t)ocb,
+ ocb->ccb->ccb_h.timeout_ch);
+ ocb->ccb->ccb_h.status = status;
+ 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);
+ }
+ if (sdev->last_ocb != NULL) {
+ sbp_free_ocb(sdev, sdev->last_ocb);
+ sdev->last_ocb = NULL;
+ }
+
+ splx(s);
+}
+
+static devclass_t sbp_devclass;
+
+static device_method_t sbp_methods[] = {
+ /* device interface */
+ DEVMETHOD(device_identify, sbp_identify),
+ DEVMETHOD(device_probe, sbp_probe),
+ DEVMETHOD(device_attach, sbp_attach),
+ DEVMETHOD(device_detach, sbp_detach),
+ DEVMETHOD(device_shutdown, sbp_shutdown),
+
+ { 0, 0 }
+};
+
+static driver_t sbp_driver = {
+ "sbp",
+ sbp_methods,
+ sizeof(struct sbp_softc),
+};
+#ifdef __DragonFly__
+DECLARE_DUMMY_MODULE(sbp);
+#endif
+DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
+MODULE_VERSION(sbp, 1);
+MODULE_DEPEND(sbp, firewire, 1, 1, 1);
+MODULE_DEPEND(sbp, cam, 1, 1, 1);
generated by cgit v1.3 (git 2.53.0) at 2026-07-30 09:05:05 +0000