/*- * SPDX-License-Identifier: BSD-4-Clause * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define ccb_sdev_ptr spriv_ptr0 #define ccb_sbp_ptr spriv_ptr1 #define SBP_NUM_TARGETS 8 /* MAX 64 */ /* * Scan_bus doesn't work for more than 8 LUNs * because of CAM_SCSI2_MAXLUN in cam_xpt.c */ #define SBP_NUM_LUNS 64 #define SBP_MAXPHYS (128 * 1024) #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); static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "SBP-II Subsystem"); SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RWTUN, &debug, 0, "SBP debug flag"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RWTUN, &auto_login, 0, "SBP perform login automatically"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RWTUN, &max_speed, 0, "SBP transfer max speed"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RWTUN, &ex_login, 0, "SBP enable exclusive login"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RWTUN, &login_delay, 0, "SBP login delay in msec"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RWTUN, &scan_delay, 0, "SBP scan delay in msec"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RWTUN, &use_doorbell, 0, "SBP use doorbell request"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RWTUN, &sbp_tags, 0, "SBP tagged queuing support"); #define NEED_RESPONSE 0 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) 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; struct callout timer; }; #define OCB_ACT_MGM 0 #define OCB_ACT_CMD 1 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo)) struct sbp_dev { #define SBP_DEV_RESET 0 /* accept login */ #define SBP_DEV_LOGIN 1 /* to login */ #if 0 #define SBP_DEV_RECONN 2 /* to reconnect */ #endif #define SBP_DEV_TOATTACH 3 /* to attach */ #define SBP_DEV_PROBE 4 /* scan lun */ #define SBP_DEV_ATTACHED 5 /* in operation */ #define SBP_DEV_DEAD 6 /* unavailable unit */ #define SBP_DEV_RETRY 7 /* unavailable unit */ uint8_t status:4, timeout:4; uint8_t type; uint16_t lun_id; uint16_t freeze; #define ORB_LINK_DEAD (1 << 0) #define VALID_LUN (1 << 1) #define ORB_POINTER_ACTIVE (1 << 2) #define ORB_POINTER_NEED (1 << 3) #define ORB_DOORBELL_ACTIVE (1 << 4) #define ORB_DOORBELL_NEED (1 << 5) #define ORB_SHORTAGE (1 << 6) uint16_t flags; struct cam_path *path; struct sbp_target *target; struct fwdma_alloc dma; struct sbp_login_res *login; struct callout login_callout; struct sbp_ocb *ocb; STAILQ_HEAD(, sbp_ocb) ocbs; STAILQ_HEAD(, sbp_ocb) free_ocbs; struct sbp_ocb *last_ocb; char vendor[32]; char product[32]; char revision[10]; char bustgtlun[32]; }; struct sbp_target { int target_id; int num_lun; struct sbp_dev **luns; struct sbp_softc *sbp; struct fw_device *fwdev; uint32_t mgm_hi, mgm_lo; struct sbp_ocb *mgm_ocb_cur; STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue; struct callout mgm_ocb_timeout; struct callout scan_callout; STAILQ_HEAD(, fw_xfer) xferlist; int n_xfer; }; struct sbp_softc { struct firewire_dev_comm fd; struct cam_sim *sim; struct cam_path *path; struct sbp_target targets[SBP_NUM_TARGETS]; struct fw_bind fwb; bus_dma_tag_t dmat; struct timeval last_busreset; #define SIMQ_FREEZED 1 int flags; struct mtx mtx; }; #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx) #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx) #define SBP_LOCK_ASSERT(sbp) mtx_assert(&(sbp)->mtx, MA_OWNED) 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 *); static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire"); /* cam related functions */ static void sbp_action(struct cam_sim *sim, union ccb *ccb); static void sbp_poll(struct cam_sim *sim); static void sbp_cam_scan_lun(struct cam_periph *, union ccb *); static void sbp_cam_scan_target(void *arg); static char *orb_status0[] = { /* 0 */ "No additional information to report", /* 1 */ "Request type not supported", /* 2 */ "Speed not supported", /* 3 */ "Page size not supported", /* 4 */ "Access denied", /* 5 */ "Logical unit not supported", /* 6 */ "Maximum payload too small", /* 7 */ "Reserved for future standardization", /* 8 */ "Resources unavailable", /* 9 */ "Function rejected", /* A */ "Login ID not recognized", /* B */ "Dummy ORB completed", /* C */ "Request aborted", /* FF */ "Unspecified error" #define MAX_ORB_STATUS0 0xd }; static char *orb_status1_object[] = { /* 0 */ "Operation request block (ORB)", /* 1 */ "Data buffer", /* 2 */ "Page table", /* 3 */ "Unable to specify" }; static char *orb_status1_serial_bus_error[] = { /* 0 */ "Missing acknowledge", /* 1 */ "Reserved; not to be used", /* 2 */ "Time-out error", /* 3 */ "Reserved; not to be used", /* 4 */ "Busy retry limit exceeded(X)", /* 5 */ "Busy retry limit exceeded(A)", /* 6 */ "Busy retry limit exceeded(B)", /* 7 */ "Reserved for future standardization", /* 8 */ "Reserved for future standardization", /* 9 */ "Reserved for future standardization", /* A */ "Reserved for future standardization", /* B */ "Tardy retry limit exceeded", /* C */ "Conflict error", /* D */ "Data error", /* E */ "Type error", /* F */ "Address error" }; static void sbp_identify(driver_t *driver, device_t parent) { SBP_DEBUG(0) printf("sbp_identify\n"); END_DEBUG if (device_find_child(parent, "sbp", -1) == NULL) BUS_ADD_CHILD(parent, 0, "sbp", -1); } /* * sbp_probe() */ static int sbp_probe(device_t dev) { SBP_DEBUG(0) printf("sbp_probe\n"); END_DEBUG device_set_desc(dev, "SBP-2/SCSI over FireWire"); #if 0 if (bootverbose) debug = bootverbose; #endif return (0); } /* * Display device characteristics on the console */ static void sbp_show_sdev_info(struct sbp_dev *sdev) { struct fw_device *fwdev; fwdev = sdev->target->fwdev; device_printf(sdev->target->sbp->fd.dev, "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d " "speed:%d maxrec:%d\n", __func__, sdev->bustgtlun, (sdev->type & 0x40) >> 6, (sdev->type & 0x1f), fwdev->eui.hi, fwdev->eui.lo, fwdev->dst, fwdev->speed, fwdev->maxrec); device_printf(sdev->target->sbp->fd.dev, "%s: %s '%s' '%s' '%s'\n", __func__, sdev->bustgtlun, sdev->vendor, sdev->product, sdev->revision); } static struct { int bus; int target; struct fw_eui64 eui; } wired[] = { /* Bus Target EUI64 */ #if 0 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */ {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */ {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */ #endif {-1, -1, {0,0}} }; static int sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev) { int bus, i, target=-1; char w[SBP_NUM_TARGETS]; bzero(w, sizeof(w)); bus = device_get_unit(sbp->fd.dev); /* XXX wired-down configuration should be gotten from tunable or device hint */ for (i = 0; wired[i].bus >= 0; i++) { if (wired[i].bus == bus) { w[wired[i].target] = 1; if (wired[i].eui.hi == fwdev->eui.hi && wired[i].eui.lo == fwdev->eui.lo) target = wired[i].target; } } if (target >= 0) { if (target < SBP_NUM_TARGETS && sbp->targets[target].fwdev == NULL) return (target); device_printf(sbp->fd.dev, "target %d is not free for %08x:%08x\n", target, fwdev->eui.hi, fwdev->eui.lo); target = -1; } /* non-wired target */ for (i = 0; i < SBP_NUM_TARGETS; i++) if (sbp->targets[i].fwdev == NULL && w[i] == 0) { target = i; break; } return target; } static void sbp_alloc_lun(struct sbp_target *target) { struct crom_context cc; struct csrreg *reg; struct sbp_dev *sdev, **newluns; struct sbp_softc *sbp; int maxlun, lun, i; sbp = target->sbp; crom_init_context(&cc, target->fwdev->csrrom); /* XXX shoud parse appropriate unit directories only */ maxlun = -1; while (cc.depth >= 0) { reg = crom_search_key(&cc, CROM_LUN); if (reg == NULL) break; lun = reg->val & 0xffff; SBP_DEBUG(0) printf("target %d lun %d found\n", target->target_id, lun); END_DEBUG if (maxlun < lun) maxlun = lun; crom_next(&cc); } if (maxlun < 0) device_printf(target->sbp->fd.dev, "%d no LUN found\n", target->target_id); maxlun++; if (maxlun >= SBP_NUM_LUNS) maxlun = SBP_NUM_LUNS; /* Invalidiate stale devices */ for (lun = 0; lun < target->num_lun; lun++) { sdev = target->luns[lun]; if (sdev == NULL) continue; sdev->flags &= ~VALID_LUN; if (lun >= maxlun) { /* lost device */ sbp_cam_detach_sdev(sdev); sbp_free_sdev(sdev); target->luns[lun] = NULL; } } /* Reallocate */ if (maxlun != target->num_lun) { newluns = (struct sbp_dev **) realloc(target->luns, sizeof(struct sbp_dev *) * maxlun, M_SBP, M_NOWAIT | M_ZERO); if (newluns == NULL) { printf("%s: realloc failed\n", __func__); newluns = target->luns; maxlun = target->num_lun; } /* * We must zero the extended region for the case * realloc() doesn't allocate new buffer. */ if (maxlun > target->num_lun) bzero(&newluns[target->num_lun], sizeof(struct sbp_dev *) * (maxlun - target->num_lun)); target->luns = newluns; target->num_lun = maxlun; } crom_init_context(&cc, target->fwdev->csrrom); while (cc.depth >= 0) { int new = 0; reg = crom_search_key(&cc, CROM_LUN); if (reg == NULL) break; lun = reg->val & 0xffff; if (lun >= SBP_NUM_LUNS) { printf("too large lun %d\n", lun); goto next; } sdev = target->luns[lun]; if (sdev == NULL) { sdev = malloc(sizeof(struct sbp_dev), M_SBP, M_NOWAIT | M_ZERO); if (sdev == NULL) { printf("%s: malloc failed\n", __func__); goto next; } target->luns[lun] = sdev; sdev->lun_id = lun; sdev->target = target; STAILQ_INIT(&sdev->ocbs); callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0); sdev->status = SBP_DEV_RESET; new = 1; snprintf(sdev->bustgtlun, 32, "%s:%d:%d", device_get_nameunit(sdev->target->sbp->fd.dev), sdev->target->target_id, sdev->lun_id); } sdev->flags |= VALID_LUN; sdev->type = (reg->val & 0xff0000) >> 16; if (new == 0) goto next; fwdma_malloc(sbp->fd.fc, /* alignment */ sizeof(uint32_t), SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT | BUS_DMA_COHERENT); if (sdev->dma.v_addr == NULL) { printf("%s: dma space allocation failed\n", __func__); free(sdev, M_SBP); target->luns[lun] = NULL; goto next; } sdev->login = (struct sbp_login_res *) sdev->dma.v_addr; sdev->ocb = (struct sbp_ocb *) ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE); bzero((char *)sdev->ocb, sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); STAILQ_INIT(&sdev->free_ocbs); for (i = 0; i < SBP_QUEUE_LEN; i++) { struct sbp_ocb *ocb; ocb = &sdev->ocb[i]; ocb->bus_addr = sdev->dma.bus_addr + SBP_LOGIN_SIZE + sizeof(struct sbp_ocb) * i + offsetof(struct sbp_ocb, orb[0]); if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { printf("sbp_attach: cannot create dmamap\n"); /* XXX */ goto next; } callout_init_mtx(&ocb->timer, &sbp->mtx, 0); SBP_LOCK(sbp); sbp_free_ocb(sdev, ocb); SBP_UNLOCK(sbp); } 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->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_mtx(&target->mgm_ocb_timeout, &sbp->mtx, 0); callout_init_mtx(&target->scan_callout, &sbp->mtx, 0); 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_LOCK_ASSERT(sdev->target->sbp); sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL); } static void sbp_login(struct sbp_dev *sdev) { struct timeval delta; struct timeval t; int ticks = 0; microtime(&delta); timevalsub(&delta, &sdev->target->sbp->last_busreset); t.tv_sec = login_delay / 1000; t.tv_usec = (login_delay % 1000) * 1000; timevalsub(&t, &delta); if (t.tv_sec >= 0 && t.tv_usec > 0) ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000; SBP_DEBUG(0) printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__, (intmax_t)t.tv_sec, t.tv_usec, ticks); END_DEBUG callout_reset(&sdev->login_callout, ticks, sbp_login_callout, (void *)(sdev)); } #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) static void sbp_probe_target(struct sbp_target *target) { struct sbp_softc *sbp = target->sbp; struct sbp_dev *sdev; int i, alive; alive = SBP_FWDEV_ALIVE(target->fwdev); SBP_DEBUG(1) device_printf(sbp->fd.dev, "%s %d%salive\n", __func__, target->target_id, (!alive) ? " not " : ""); END_DEBUG sbp_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_show_sdev_info(sdev); SBP_LOCK(sbp); sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET); SBP_UNLOCK(sbp); switch (sdev->status) { case SBP_DEV_RESET: /* new or revived target */ if (auto_login) sbp_login(sdev); break; case SBP_DEV_TOATTACH: case SBP_DEV_PROBE: case SBP_DEV_ATTACHED: case SBP_DEV_RETRY: default: sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL); break; } } else { switch (sdev->status) { case SBP_DEV_ATTACHED: SBP_DEBUG(0) /* the device has gone */ device_printf(sbp->fd.dev, "%s: lost target\n", __func__); END_DEBUG if (sdev->path) { xpt_freeze_devq(sdev->path, 1); sdev->freeze++; } sdev->status = SBP_DEV_RETRY; sbp_cam_detach_sdev(sdev); sbp_free_sdev(sdev); target->luns[i] = NULL; break; case SBP_DEV_PROBE: case SBP_DEV_TOATTACH: sdev->status = SBP_DEV_RESET; break; case SBP_DEV_RETRY: case SBP_DEV_RESET: case SBP_DEV_DEAD: break; } } } } static void sbp_post_busreset(void *arg) { struct sbp_softc *sbp; sbp = (struct sbp_softc *)arg; SBP_DEBUG(0) printf("sbp_post_busreset\n"); END_DEBUG SBP_LOCK(sbp); if ((sbp->flags & SIMQ_FREEZED) == 0) { xpt_freeze_simq(sbp->sim, /*count*/1); sbp->flags |= SIMQ_FREEZED; } microtime(&sbp->last_busreset); SBP_UNLOCK(sbp); } static void sbp_post_explore(void *arg) { struct sbp_softc *sbp = (struct sbp_softc *)arg; struct sbp_target *target; struct fw_device *fwdev; int i, alive; SBP_DEBUG(0) printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); END_DEBUG /* We need physical access */ if (!firewire_phydma_enable) return; if (sbp_cold > 0) sbp_cold--; SBP_LOCK(sbp); /* Garbage Collection */ for (i = 0; i < SBP_NUM_TARGETS; i++) { target = &sbp->targets[i]; if (target->fwdev == NULL) continue; STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) if (target->fwdev == fwdev) break; if (fwdev == NULL) { /* device has removed in lower driver */ sbp_cam_detach_target(target); sbp_free_target(target); } } /* traverse device list */ STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) { SBP_DEBUG(0) device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n", __func__, fwdev->eui.hi, fwdev->eui.lo, (fwdev->status != FWDEVATTACHED) ? "not" : "", fwdev->status); END_DEBUG alive = SBP_FWDEV_ALIVE(fwdev); for (i = 0; i < SBP_NUM_TARGETS; i++) { target = &sbp->targets[i]; if (target->fwdev == fwdev) { /* known target */ break; } } if (i == SBP_NUM_TARGETS) { if (alive) { /* new target */ target = sbp_alloc_target(sbp, fwdev); if (target == NULL) continue; } else { continue; } } /* * It is safe to drop the lock here as the target is already * reserved, so there should be no contenders for it. * And the target is not yet exposed, so there should not be * any other accesses to it. * Finally, the list being iterated is protected somewhere else. */ SBP_UNLOCK(sbp); sbp_probe_target(target); SBP_LOCK(sbp); if (target->num_lun == 0) sbp_free_target(target); } if ((sbp->flags & SIMQ_FREEZED) != 0) { xpt_release_simq(sbp->sim, /*run queue*/TRUE); sbp->flags &= ~SIMQ_FREEZED; } SBP_UNLOCK(sbp); } #if NEED_RESPONSE static void sbp_loginres_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__); END_DEBUG /* recycle */ SBP_LOCK(sdev->target->sbp); STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link); SBP_UNLOCK(sdev->target->sbp); return; } #endif static __inline void sbp_xfer_free(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; fw_xfer_unload(xfer); SBP_LOCK_ASSERT(sdev->target->sbp); STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); } static void sbp_reset_start_callback(struct fw_xfer *xfer) { struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc; struct sbp_target *target = sdev->target; int i; if (xfer->resp != 0) { device_printf(sdev->target->sbp->fd.dev, "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); } SBP_LOCK(target->sbp); for (i = 0; i < target->num_lun; i++) { tsdev = target->luns[i]; if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) sbp_login(tsdev); } SBP_UNLOCK(target->sbp); } static void sbp_reset_start(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__,sdev->bustgtlun); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); xfer->hand = sbp_reset_start_callback; fp = &xfer->send.hdr; fp->mode.wreqq.dest_hi = 0xffff; fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START; fp->mode.wreqq.data = htonl(0xf); fw_asyreq(xfer->fc, -1, xfer); } static void sbp_mgm_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG SBP_LOCK(sdev->target->sbp); sbp_xfer_free(xfer); SBP_UNLOCK(sdev->target->sbp); } 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_softc *sbp; struct sbp_target *target; struct sbp_dev *sdev; sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; target = sdev->target; sbp = target->sbp; SBP_LOCK(sbp); SBP_DEBUG(0) device_printf(sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { sdev->status = SBP_DEV_ATTACHED; } else { device_printf(sbp->fd.dev, "%s:%s failed\n", __func__, sdev->bustgtlun); } sdev = sbp_next_dev(target, sdev->lun_id + 1); if (sdev == NULL) { SBP_UNLOCK(sbp); xpt_free_ccb(ccb); return; } /* reuse ccb */ xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI); ccb->ccb_h.ccb_sdev_ptr = sdev; ccb->ccb_h.flags |= CAM_DEV_QFREEZE; SBP_UNLOCK(sbp); 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; SBP_LOCK_ASSERT(target->sbp); sdev = sbp_next_dev(target, 0); if (sdev == NULL) { printf("sbp_cam_scan_target: nothing to do for target%d\n", target->target_id); return; } SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG ccb = xpt_alloc_ccb_nowait(); if (ccb == NULL) { printf("sbp_cam_scan_target: xpt_alloc_ccb_nowait() failed\n"); return; } SBP_UNLOCK(target->sbp); 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); SBP_LOCK(target->sbp); 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_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0, sbp_cam_scan_target, (void *)sdev->target, 0); } 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_LOCK(sbp); SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG sbp_xfer_free(xfer); if (sdev->path == NULL) xpt_create_path(&sdev->path, NULL, 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 exist. */ if (sbp_cold > 0) { sdev->status = SBP_DEV_ATTACHED; SBP_UNLOCK(sbp); return; } sbp_scan_dev(sdev); SBP_UNLOCK(sbp); } static void sbp_agent_reset_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG if (xfer->resp != 0) { device_printf(sdev->target->sbp->fd.dev, "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); } SBP_LOCK(sdev->target->sbp); sbp_xfer_free(xfer); if (sdev->path) { xpt_release_devq(sdev->path, sdev->freeze, TRUE); sdev->freeze = 0; } SBP_UNLOCK(sdev->target->sbp); } static void sbp_agent_reset(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_LOCK_ASSERT(sdev->target->sbp); SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); if (xfer == NULL) return; if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE) xfer->hand = sbp_agent_reset_callback; else xfer->hand = sbp_do_attach; fp = &xfer->send.hdr; fp->mode.wreqq.data = htonl(0xf); fw_asyreq(xfer->fc, -1, xfer); sbp_abort_all_ocbs(sdev, CAM_BDR_SENT); } static void sbp_busy_timeout_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG SBP_LOCK(sdev->target->sbp); sbp_xfer_free(xfer); sbp_agent_reset(sdev); SBP_UNLOCK(sdev->target->sbp); } static void sbp_busy_timeout(struct sbp_dev *sdev) { struct fw_pkt *fp; struct fw_xfer *xfer; SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); xfer->hand = sbp_busy_timeout_callback; fp = &xfer->send.hdr; fp->mode.wreqq.dest_hi = 0xffff; fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT; fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf); fw_asyreq(xfer->fc, -1, xfer); } static void sbp_orb_pointer_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(2) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG if (xfer->resp != 0) { /* XXX */ printf("%s: xfer->resp = %d\n", __func__, xfer->resp); } SBP_LOCK(sdev->target->sbp); 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); } SBP_UNLOCK(sdev->target->sbp); return; } static void sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); END_DEBUG SBP_LOCK_ASSERT(sdev->target->sbp); 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->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) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG if (xfer->resp != 0) { /* XXX */ device_printf(sdev->target->sbp->fd.dev, "%s: xfer->resp = %d\n", __func__, xfer->resp); } SBP_LOCK(sdev->target->sbp); sbp_xfer_free(xfer); sdev->flags &= ~ORB_DOORBELL_ACTIVE; if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { sdev->flags &= ~ORB_DOORBELL_NEED; sbp_doorbell(sdev); } SBP_UNLOCK(sdev->target->sbp); } static void sbp_doorbell(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) { sdev->flags |= ORB_DOORBELL_NEED; return; } sdev->flags |= ORB_DOORBELL_ACTIVE; xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); if (xfer == NULL) return; xfer->hand = sbp_doorbell_callback; fp = &xfer->send.hdr; fp->mode.wreqq.data = htonl(0xf); fw_asyreq(xfer->fc, -1, xfer); } static struct fw_xfer * sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) { struct fw_xfer *xfer; struct fw_pkt *fp; struct sbp_target *target; int new = 0; SBP_LOCK_ASSERT(sdev->target->sbp); target = sdev->target; xfer = STAILQ_FIRST(&target->xferlist); if (xfer == NULL) { if (target->n_xfer > 5 /* XXX */) { printf("sbp: no more xfer for this target\n"); return (NULL); } xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); if (xfer == NULL) { printf("sbp: fw_xfer_alloc_buf failed\n"); 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); } if (new) { xfer->recv.pay_len = 0; xfer->send.spd = min(sdev->target->fwdev->speed, max_speed); xfer->fc = sdev->target->sbp->fd.fc; } if (tcode == FWTCODE_WREQB) xfer->send.pay_len = 8; else xfer->send.pay_len = 0; xfer->sc = (caddr_t)sdev; fp = &xfer->send.hdr; fp->mode.wreqq.dest_hi = sdev->login->cmd_hi; fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset; fp->mode.wreqq.tlrt = 0; fp->mode.wreqq.tcode = tcode; fp->mode.wreqq.pri = 0; fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst; return xfer; } static 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 nid; target = sdev->target; nid = target->sbp->fd.fc->nodeid | FWLOCALBUS; SBP_LOCK_ASSERT(target->sbp); if (func == ORB_FUN_RUNQUEUE) { ocb = STAILQ_FIRST(&target->mgm_ocb_queue); if (target->mgm_ocb_cur != NULL || ocb == NULL) { return; } STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); goto start; } if ((ocb = sbp_get_ocb(sdev)) == NULL) { /* 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) device_printf(sdev->target->sbp->fd.dev, "%s:%s %s\n", __func__,sdev->bustgtlun, orb_fun_name[(func >> 16) & 0xf]); END_DEBUG switch (func) { case ORB_FUN_LGI: ocb->orb[0] = ocb->orb[1] = 0; /* password */ ocb->orb[2] = htonl(nid << 16); ocb->orb[3] = htonl(sdev->dma.bus_addr); ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id); if (ex_login) ocb->orb[4] |= htonl(ORB_EXV); ocb->orb[5] = htonl(SBP_LOGIN_SIZE); fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD); break; case ORB_FUN_ATA: ocb->orb[0] = htonl((0 << 16) | 0); ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff); /* fall through */ case ORB_FUN_RCN: case ORB_FUN_LGO: case ORB_FUN_LUR: case ORB_FUN_RST: case ORB_FUN_ATS: ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id); break; } if (target->mgm_ocb_cur != NULL) { /* there is a standing ORB */ STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); return; } start: target->mgm_ocb_cur = ocb; callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, (caddr_t)ocb); xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); if (xfer == NULL) { return; } xfer->hand = sbp_mgm_callback; fp = &xfer->send.hdr; fp->mode.wreqb.dest_hi = sdev->target->mgm_hi; fp->mode.wreqb.dest_lo = sdev->target->mgm_lo; fp->mode.wreqb.len = 8; fp->mode.wreqb.extcode = 0; xfer->send.payload[0] = htonl(nid << 16); xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff); fw_asyreq(xfer->fc, -1, xfer); } static void sbp_print_scsi_cmd(struct sbp_ocb *ocb) { struct ccb_scsiio *csio; csio = &ocb->ccb->csio; printf("%s:%d:%jx 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, (uintmax_t)ocb->ccb->ccb_h.target_lun, csio->cdb_io.cdb_bytes[0], csio->cdb_io.cdb_bytes[1], csio->cdb_io.cdb_bytes[2], csio->cdb_io.cdb_bytes[3], csio->cdb_io.cdb_bytes[4], csio->cdb_io.cdb_bytes[5], csio->cdb_io.cdb_bytes[6], csio->cdb_io.cdb_bytes[7], csio->cdb_io.cdb_bytes[8], csio->cdb_io.cdb_bytes[9], ocb->ccb->ccb_h.flags & CAM_DIR_MASK, csio->cdb_len, csio->dxfer_len, csio->sense_len); } static void sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb) { struct sbp_cmd_status *sbp_cmd_status; struct scsi_sense_data_fixed *sense; sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data; SBP_DEBUG(0) sbp_print_scsi_cmd(ocb); /* XXX need decode status */ printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n", ocb->sdev->bustgtlun, sbp_cmd_status->status, sbp_cmd_status->sfmt, sbp_cmd_status->valid, sbp_cmd_status->s_key, sbp_cmd_status->s_code, sbp_cmd_status->s_qlfr, sbp_status->len); END_DEBUG switch (sbp_cmd_status->status) { case SCSI_STATUS_CHECK_COND: case SCSI_STATUS_BUSY: case SCSI_STATUS_CMD_TERMINATED: if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) { sense->error_code = SSD_CURRENT_ERROR; } else { sense->error_code = SSD_DEFERRED_ERROR; } if (sbp_cmd_status->valid) sense->error_code |= SSD_ERRCODE_VALID; sense->flags = sbp_cmd_status->s_key; if (sbp_cmd_status->mark) sense->flags |= SSD_FILEMARK; if (sbp_cmd_status->eom) sense->flags |= SSD_EOM; if (sbp_cmd_status->ill_len) sense->flags |= SSD_ILI; bcopy(&sbp_cmd_status->info, &sense->info[0], 4); if (sbp_status->len <= 1) /* XXX not scsi status. shouldn't be happened */ sense->extra_len = 0; else if (sbp_status->len <= 4) /* add_sense_code(_qual), info, cmd_spec_info */ sense->extra_len = 6; else /* fru, sense_key_spec */ sense->extra_len = 10; bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4); sense->add_sense_code = sbp_cmd_status->s_code; sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; sense->fru = sbp_cmd_status->fru; bcopy(&sbp_cmd_status->s_keydep[0], &sense->sense_key_spec[0], 3); ocb->ccb->csio.scsi_status = sbp_cmd_status->status; ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; /* { uint8_t j, *tmp; tmp = sense; for (j = 0; j < 32; j += 8) { printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3], tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]); } } */ break; default: device_printf(ocb->sdev->target->sbp->fd.dev, "%s:%s unknown scsi status 0x%x\n", __func__, ocb->sdev->bustgtlun, sbp_cmd_status->status); } } static void sbp_fix_inq_data(struct sbp_ocb *ocb) { union ccb *ccb; struct sbp_dev *sdev; struct scsi_inquiry_data *inq; ccb = ocb->ccb; sdev = ocb->sdev; if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) return; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s\n", __func__, sdev->bustgtlun); END_DEBUG inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; switch (SID_TYPE(inq)) { case T_DIRECT: #if 0 /* * XXX Convert Direct Access device to RBC. * I've never seen FireWire DA devices which support READ_6. */ if (SID_TYPE(inq) == T_DIRECT) inq->device |= T_RBC; /* T_DIRECT == 0 */ #endif /* fall through */ case T_RBC: /* * Override vendor/product/revision information. * Some devices sometimes return strange strings. */ #if 1 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor)); bcopy(sdev->product, inq->product, sizeof(inq->product)); bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision)); #endif break; } /* * Force to enable/disable tagged queuing. * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page. */ if (sbp_tags > 0) inq->flags |= SID_CmdQue; else if (sbp_tags < 0) inq->flags &= ~SID_CmdQue; } static void sbp_recv1(struct fw_xfer *xfer) { struct fw_pkt *rfp; #if NEED_RESPONSE struct fw_pkt *sfp; #endif struct sbp_softc *sbp; struct sbp_dev *sdev; struct sbp_ocb *ocb; struct sbp_login_res *login_res = NULL; struct sbp_status *sbp_status; struct sbp_target *target; int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0; uint32_t addr; /* uint32_t *ld; ld = xfer->recv.buf; printf("sbp %x %d %d %08x %08x %08x %08x\n", xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); */ sbp = (struct sbp_softc *)xfer->sc; SBP_LOCK_ASSERT(sbp); if (xfer->resp != 0) { printf("sbp_recv: xfer->resp = %d\n", xfer->resp); goto done0; } if (xfer->recv.payload == NULL) { printf("sbp_recv: xfer->recv.payload == NULL\n"); goto done0; } rfp = &xfer->recv.hdr; if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); goto done0; } sbp_status = (struct sbp_status *)xfer->recv.payload; addr = rfp->mode.wreqb.dest_lo; SBP_DEBUG(2) printf("received address 0x%x\n", addr); END_DEBUG t = SBP_ADDR2TRG(addr); if (t >= SBP_NUM_TARGETS) { device_printf(sbp->fd.dev, "sbp_recv1: invalid target %d\n", t); goto done0; } target = &sbp->targets[t]; l = SBP_ADDR2LUN(addr); if (l >= target->num_lun || target->luns[l] == NULL) { device_printf(sbp->fd.dev, "sbp_recv1: invalid lun %d (target=%d)\n", l, t); goto done0; } sdev = target->luns[l]; ocb = NULL; switch (sbp_status->src) { case 0: case 1: /* check mgm_ocb_cur first */ ocb = target->mgm_ocb_cur; if (ocb != NULL) { if (OCB_MATCH(ocb, sbp_status)) { callout_stop(&target->mgm_ocb_timeout); target->mgm_ocb_cur = NULL; break; } } ocb = sbp_dequeue_ocb(sdev, sbp_status); if (ocb == NULL) { device_printf(sdev->target->sbp->fd.dev, "%s:%s No ocb(%x) on the queue\n", __func__,sdev->bustgtlun, ntohl(sbp_status->orb_lo)); } break; case 2: /* unsolicit */ device_printf(sdev->target->sbp->fd.dev, "%s:%s unsolicit status received\n", __func__, sdev->bustgtlun); break; default: device_printf(sdev->target->sbp->fd.dev, "%s:%s unknown sbp_status->src\n", __func__, sdev->bustgtlun); } status_valid0 = (sbp_status->src < 2 && sbp_status->resp == ORB_RES_CMPL && sbp_status->dead == 0); status_valid = (status_valid0 && sbp_status->status == 0); if (!status_valid0 || debug > 2) { int status; SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s ORB status src:%x resp:%x dead:%x" " len:%x stat:%x orb:%x%08x\n", __func__, sdev->bustgtlun, sbp_status->src, sbp_status->resp, sbp_status->dead, sbp_status->len, sbp_status->status, ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); END_DEBUG device_printf(sdev->target->sbp->fd.dev, "%s\n", sdev->bustgtlun); status = sbp_status->status; switch (sbp_status->resp) { case 0: if (status > MAX_ORB_STATUS0) printf("%s\n", orb_status0[MAX_ORB_STATUS0]); else printf("%s\n", orb_status0[status]); break; case 1: printf("Obj: %s, Error: %s\n", orb_status1_object[(status >> 6) & 3], orb_status1_serial_bus_error[status & 0xf]); break; case 2: printf("Illegal request\n"); break; case 3: printf("Vendor dependent\n"); break; default: printf("unknown respose code %d\n", sbp_status->resp); } } /* we have to reset the fetch agent if it's dead */ if (sbp_status->dead) { if (sdev->path) { 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) device_printf(sdev->target->sbp->fd.dev, "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", __func__, sdev->bustgtlun, login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo, ntohs(login_res->recon_hold)); END_DEBUG sbp_busy_timeout(sdev); } else { /* forgot logout? */ device_printf(sdev->target->sbp->fd.dev, "%s:%s login failed\n", __func__, sdev->bustgtlun); sdev->status = SBP_DEV_RESET; } break; case ORB_FUN_RCN: login_res = sdev->login; if (status_valid) { SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n", __func__, sdev->bustgtlun, login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); END_DEBUG if (sdev->status == SBP_DEV_ATTACHED) sbp_scan_dev(sdev); else sbp_agent_reset(sdev); } else { /* reconnection hold time exceed? */ SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s reconnect failed\n", __func__, sdev->bustgtlun); END_DEBUG sbp_login(sdev); } break; case ORB_FUN_LGO: sdev->status = SBP_DEV_RESET; break; case ORB_FUN_RST: sbp_busy_timeout(sdev); break; case ORB_FUN_LUR: case ORB_FUN_ATA: case ORB_FUN_ATS: sbp_agent_reset(sdev); break; default: device_printf(sdev->target->sbp->fd.dev, "%s:%s unknown function %d\n", __func__, sdev->bustgtlun, orb_fun); break; } sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); break; case OCB_ACT_CMD: sdev->timeout = 0; if (ocb->ccb != NULL) { union ccb *ccb; ccb = ocb->ccb; if (sbp_status->len > 1) { sbp_scsi_status(sbp_status, ocb); } else { if (sbp_status->resp != ORB_RES_CMPL) { ccb->ccb_h.status = CAM_REQ_CMP_ERR; } else { ccb->ccb_h.status = CAM_REQ_CMP; } } /* fix up inq data */ if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) sbp_fix_inq_data(ocb); 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->hand = sbp_loginres_callback; sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; sfp->mode.wres.tcode = FWTCODE_WRES; sfp->mode.wres.rtcode = 0; sfp->mode.wres.pri = 0; fw_asyreq(xfer->fc, -1, xfer); #else /* recycle */ STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link); #endif } static void sbp_recv(struct fw_xfer *xfer) { struct sbp_softc *sbp; sbp = (struct sbp_softc *)xfer->sc; SBP_LOCK(sbp); sbp_recv1(xfer); SBP_UNLOCK(sbp); } /* * sbp_attach() */ static int sbp_attach(device_t dev) { struct sbp_softc *sbp; struct cam_devq *devq; struct firewire_comm *fc; int i, error; if (DFLTPHYS > SBP_MAXPHYS) device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than " "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024, SBP_MAXPHYS / 1024); if (!firewire_phydma_enable) device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 " "for SBP over FireWire.\n"); SBP_DEBUG(0) printf("sbp_attach (cold=%d)\n", cold); END_DEBUG if (cold) sbp_cold++; sbp = device_get_softc(dev); sbp->fd.dev = dev; sbp->fd.fc = fc = device_get_ivars(dev); mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF); if (max_speed < 0) max_speed = fc->speed; error = bus_dma_tag_create(/*parent*/fc->dmat, /* XXX shoud be 4 for sane backend? */ /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, /*maxsegsz*/SBP_SEG_MAX, /*flags*/BUS_DMA_ALLOCNOW, /*lockfunc*/busdma_lock_mutex, /*lockarg*/&sbp->mtx, &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->targets[i].sbp = sbp; } sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, device_get_unit(dev), &sbp->mtx, /*untagged*/ 1, /*tagged*/ SBP_QUEUE_LEN - 1, devq); if (sbp->sim == NULL) { cam_simq_free(devq); return (ENXIO); } SBP_LOCK(sbp); if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS) goto fail; if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { xpt_bus_deregister(cam_sim_path(sbp->sim)); goto fail; } SBP_UNLOCK(sbp); /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0); sbp->fwb.end = sbp->fwb.start + 0xffff; /* pre-allocate xfer */ STAILQ_INIT(&sbp->fwb.xferlist); fw_xferlist_add(&sbp->fwb.xferlist, M_SBP, /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2, fc, (void *)sbp, sbp_recv); fw_bindadd(fc, &sbp->fwb); sbp->fd.post_busreset = sbp_post_busreset; sbp->fd.post_explore = sbp_post_explore; if (fc->status != -1) { sbp_post_busreset(sbp); sbp_post_explore(sbp); } SBP_LOCK(sbp); xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL); SBP_UNLOCK(sbp); return (0); fail: SBP_UNLOCK(sbp); cam_sim_free(sbp->sim, /*free_devq*/TRUE); return (ENXIO); } static int sbp_logout_all(struct sbp_softc *sbp) { struct sbp_target *target; struct sbp_dev *sdev; int i, j; SBP_DEBUG(0) printf("sbp_logout_all\n"); END_DEBUG SBP_LOCK_ASSERT(sbp); 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_LOCK(sbp); sbp_logout_all(sbp); SBP_UNLOCK(sbp); return (0); } static void sbp_free_sdev(struct sbp_dev *sdev) { struct sbp_softc *sbp; int i; if (sdev == NULL) return; sbp = sdev->target->sbp; SBP_UNLOCK(sbp); callout_drain(&sdev->login_callout); for (i = 0; i < SBP_QUEUE_LEN; i++) { callout_drain(&sdev->ocb[i].timer); bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap); } fwdma_free(sbp->fd.fc, &sdev->dma); free(sdev, M_SBP); SBP_LOCK(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; sbp = target->sbp; SBP_LOCK_ASSERT(sbp); SBP_UNLOCK(sbp); callout_drain(&target->mgm_ocb_timeout); callout_drain(&target->scan_callout); SBP_LOCK(sbp); for (i = 0; i < target->num_lun; i++) sbp_free_sdev(target->luns[i]); STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) { fw_xfer_free_buf(xfer); } STAILQ_INIT(&target->xferlist); free(target->luns, M_SBP); target->num_lun = 0; target->luns = NULL; target->fwdev = NULL; } static int sbp_detach(device_t dev) { struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); struct firewire_comm *fc = sbp->fd.fc; int i; SBP_DEBUG(0) printf("sbp_detach\n"); END_DEBUG SBP_LOCK(sbp); 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); SBP_UNLOCK(sbp); /* XXX wait for logout completion */ pause("sbpdtc", hz/2); SBP_LOCK(sbp); for (i = 0; i < SBP_NUM_TARGETS; i++) sbp_free_target(&sbp->targets[i]); SBP_UNLOCK(sbp); fw_bindremove(fc, &sbp->fwb); fw_xferlist_remove(&sbp->fwb.xferlist); bus_dma_tag_destroy(sbp->dmat); mtx_destroy(&sbp->mtx); return (0); } static void sbp_cam_detach_sdev(struct sbp_dev *sdev) { if (sdev == NULL) return; if (sdev->status == SBP_DEV_DEAD) return; if (sdev->status == SBP_DEV_RESET) return; SBP_LOCK_ASSERT(sdev->target->sbp); sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); 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; } } static void sbp_cam_detach_target(struct sbp_target *target) { int i; SBP_LOCK_ASSERT(target->sbp); 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; SBP_LOCK_ASSERT(target->sbp); 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_LOCK_ASSERT(target->sbp); device_printf(sdev->target->sbp->fd.dev, "%s:%s request timeout(mgm orb:0x%08x)\n", __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); target->mgm_ocb_cur = NULL; sbp_free_ocb(sdev, ocb); #if 0 /* XXX */ printf("run next request\n"); sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); #endif device_printf(sdev->target->sbp->fd.dev, "%s:%s reset start\n", __func__, sdev->bustgtlun); sbp_reset_start(sdev); } static void sbp_timeout(void *arg) { struct sbp_ocb *ocb = (struct sbp_ocb *)arg; struct sbp_dev *sdev = ocb->sdev; device_printf(sdev->target->sbp->fd.dev, "%s:%s request timeout(cmd orb:0x%08x) ... ", __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); SBP_LOCK_ASSERT(sdev->target->sbp); 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_action(struct cam_sim *sim, union ccb *ccb) { struct sbp_softc *sbp = cam_sim_softc(sim); struct sbp_target *target = NULL; struct sbp_dev *sdev = NULL; if (sbp != NULL) SBP_LOCK_ASSERT(sbp); /* 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 %jx\n", ccb->ccb_h.target_id, (uintmax_t)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:%jx:func_code 0x%04x: " "Invalid target (target needed)\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, (uintmax_t)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:%jx func_code 0x%04x: " "Invalid target (no wildcard)\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, ccb->ccb_h.func_code); END_DEBUG ccb->ccb_h.status = CAM_DEV_NOT_THERE; xpt_done(ccb); return; } break; default: /* XXX Hm, we should check the input parameters */ break; } switch (ccb->ccb_h.func_code) { case XPT_SCSI_IO: { struct ccb_scsiio *csio; struct sbp_ocb *ocb; int speed; void *cdb; csio = &ccb->csio; mtx_assert(sim->mtx, MA_OWNED); SBP_DEBUG(2) printf("%s:%d:%jx 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, (uintmax_t)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 (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) { ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); return; } #if 0 /* if we are in probe stage, pass only probe commands */ if (sdev->status == SBP_DEV_PROBE) { char *name; name = xpt_path_periph(ccb->ccb_h.path)->periph_name; printf("probe stage, periph name: %s\n", name); if (strcmp(name, "probe") != 0) { ccb->ccb_h.status = CAM_REQUEUE_REQ; xpt_done(ccb); return; } } #endif if ((ocb = sbp_get_ocb(sdev)) == NULL) { ccb->ccb_h.status = CAM_RESRC_UNAVAIL; if (sdev->freeze == 0) { 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(1U << 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_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 error; error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat, /*dma map*/ocb->dmamap, ccb, sbp_execute_ocb, ocb, /*flags*/0); 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; ccg = &ccb->ccg; if (ccg->block_size == 0) { printf("sbp_action: block_size is 0.\n"); ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); break; } SBP_DEBUG(1) printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: " "Volume size = %jd\n", device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim), ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun, (uintmax_t)ccg->volume_size); END_DEBUG cam_calc_geometry(ccg, /*extended*/1); 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:%jx XPT_PATH_INQ:.\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, (uintmax_t)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; strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN); strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); cpi->unit_number = sim->unit_number; cpi->transport = XPORT_SPI; /* XX should have a FireWire */ cpi->transport_version = 2; cpi->protocol = PROTO_SCSI; cpi->protocol_version = SCSI_REV_2; cpi->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break; } case XPT_GET_TRAN_SETTINGS: { struct ccb_trans_settings *cts = &ccb->cts; struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; cts->protocol = PROTO_SCSI; cts->protocol_version = SCSI_REV_2; cts->transport = XPORT_SPI; /* should have a FireWire */ cts->transport_version = 2; spi->valid = CTS_SPI_VALID_DISC; spi->flags = CTS_SPI_FLAGS_DISC_ENB; scsi->valid = CTS_SCSI_VALID_TQ; scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; SBP_DEBUG(1) printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun); END_DEBUG cts->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break; } case XPT_ABORT: ccb->ccb_h.status = CAM_UA_ABORT; xpt_done(ccb); break; case XPT_SET_TRAN_SETTINGS: /* XXX */ default: ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); break; } return; } static void sbp_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++) printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr, (uintmax_t)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, " "segment length(%zd) is less than 16." "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg); END_DEBUG if (s->ds_len > SBP_SEG_MAX) panic("ds_len > SBP_SEG_MAX, fix busdma code"); ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); ocb->ind_ptr[i].lo = htonl(s->ds_addr); } ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); } if (seg > 0) bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap, (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); prev = sbp_enqueue_ocb(ocb->sdev, ocb); fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE); if (use_doorbell) { if (prev == NULL) { if (ocb->sdev->last_ocb != NULL) sbp_doorbell(ocb->sdev); else sbp_orb_pointer(ocb->sdev, ocb); } } else { if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) { ocb->sdev->flags &= ~ORB_LINK_DEAD; sbp_orb_pointer(ocb->sdev, ocb); } } } static void sbp_poll(struct cam_sim *sim) { struct sbp_softc *sbp; struct firewire_comm *fc; sbp = cam_sim_softc(sim); 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 order = 0; SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s 0x%08x src %d\n", __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); END_DEBUG SBP_LOCK_ASSERT(sdev->target->sbp); STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) { if (OCB_MATCH(ocb, sbp_status)) { /* found */ STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); if (ocb->ccb != NULL) callout_stop(&ocb->timer); 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++; } SBP_DEBUG(0) if (ocb && order > 0) { device_printf(sdev->target->sbp->fd.dev, "%s:%s unordered execution order:%d\n", __func__, sdev->bustgtlun, order); } END_DEBUG return (ocb); } static struct sbp_ocb * sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) { struct sbp_ocb *prev, *prev2; SBP_LOCK_ASSERT(sdev->target->sbp); SBP_DEBUG(1) device_printf(sdev->target->sbp->fd.dev, "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); END_DEBUG prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); if (ocb->ccb != NULL) { callout_reset_sbt(&ocb->timer, SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout, ocb, 0); } if (use_doorbell && prev == NULL) prev2 = sdev->last_ocb; if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) { SBP_DEBUG(1) printf("linking chain 0x%jx -> 0x%jx\n", (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr); END_DEBUG /* * Suppress compiler optimization so that orb[1] must be written first. * XXX We may need an explicit memory barrier for other architectures * other than i386/amd64. */ *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr); *(volatile uint32_t *)&prev2->orb[0] = 0; } return prev; } static struct sbp_ocb * sbp_get_ocb(struct sbp_dev *sdev) { struct sbp_ocb *ocb; SBP_LOCK_ASSERT(sdev->target->sbp); 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); ocb->ccb = NULL; return (ocb); } static void sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) { ocb->flags = 0; ocb->ccb = NULL; SBP_LOCK_ASSERT(sdev->target->sbp); STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); if ((sdev->flags & ORB_SHORTAGE) != 0) { int count; sdev->flags &= ~ORB_SHORTAGE; count = sdev->freeze; sdev->freeze = 0; xpt_release_devq(sdev->path, count, TRUE); } } static void sbp_abort_ocb(struct sbp_ocb *ocb, int status) { struct sbp_dev *sdev; sdev = ocb->sdev; SBP_LOCK_ASSERT(sdev->target->sbp); SBP_DEBUG(0) device_printf(sdev->target->sbp->fd.dev, "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)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) { callout_stop(&ocb->timer); 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) { struct sbp_ocb *ocb, *next; STAILQ_HEAD(, sbp_ocb) temp; STAILQ_INIT(&temp); SBP_LOCK_ASSERT(sdev->target->sbp); STAILQ_CONCAT(&temp, &sdev->ocbs); STAILQ_INIT(&sdev->ocbs); STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) { sbp_abort_ocb(ocb, status); } if (sdev->last_ocb != NULL) { sbp_free_ocb(sdev, sdev->last_ocb); sdev->last_ocb = NULL; } } 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);