/* $NetBSD: sbp.c,v 1.36 2014/02/25 18:30:09 pooka Exp $ */ /*- * 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: src/sys/dev/firewire/sbp.c,v 1.100 2009/02/18 18:41:34 sbruno Exp $ * */ #include __KERNEL_RCSID(0, "$NetBSD: sbp.c,v 1.36 2014/02/25 18:30:09 pooka Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "locators.h" #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \ && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2)) #define SBP_NUM_TARGETS 8 /* MAX 64 */ #define SBP_NUM_LUNS 64 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */) #define SBP_DMA_SIZE PAGE_SIZE #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res) #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb)) #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) /* * STATUS FIFO addressing * bit * ----------------------- * 0- 1( 2): 0 (alignment) * 2- 9( 8): lun * 10-31(14): unit * 32-47(16): SBP_BIND_HI * 48-64(16): bus_id, node_id */ #define SBP_BIND_HI 0x1 #define SBP_DEV2ADDR(u, l) \ (((uint64_t)SBP_BIND_HI << 32) |\ (((u) & 0x3fff) << 10) |\ (((l) & 0xff) << 2)) #define SBP_ADDR2UNIT(a) (((a) >> 10) & 0x3fff) #define SBP_ADDR2LUN(a) (((a) >> 2) & 0xff) #define SBP_INITIATOR 7 static const 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; static int sysctl_sbp_verify(SYSCTLFN_PROTO, int lower, int upper); static int sysctl_sbp_verify_max_speed(SYSCTLFN_PROTO); static int sysctl_sbp_verify_tags(SYSCTLFN_PROTO); /* * Setup sysctl(3) MIB, hw.sbp.* * * TBD condition CTLFLAG_PERMANENT on being a module or not */ SYSCTL_SETUP(sysctl_sbp, "sysctl sbp(4) subtree setup") { int rc, sbp_node_num; const struct sysctlnode *node; if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT, CTLTYPE_NODE, "sbp", SYSCTL_DESCR("sbp controls"), NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) goto err; sbp_node_num = node->sysctl_num; /* sbp auto login flag */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "auto_login", SYSCTL_DESCR("SBP perform login automatically"), NULL, 0, &auto_login, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; /* sbp max speed */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "max_speed", SYSCTL_DESCR("SBP transfer max speed"), sysctl_sbp_verify_max_speed, 0, &max_speed, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; /* sbp exclusive login flag */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "exclusive_login", SYSCTL_DESCR("SBP enable exclusive login"), NULL, 0, &ex_login, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; /* sbp login delay */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "login_delay", SYSCTL_DESCR("SBP login delay in msec"), NULL, 0, &login_delay, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; /* sbp scan delay */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "scan_delay", SYSCTL_DESCR("SBP scan delay in msec"), NULL, 0, &scan_delay, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; /* sbp use doorbell flag */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "use_doorbell", SYSCTL_DESCR("SBP use doorbell request"), NULL, 0, &use_doorbell, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; /* sbp force tagged queuing */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "tags", SYSCTL_DESCR("SBP tagged queuing support"), sysctl_sbp_verify_tags, 0, &sbp_tags, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; /* sbp driver debug flag */ if ((rc = sysctl_createv(clog, 0, NULL, &node, CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "sbp_debug", SYSCTL_DESCR("SBP debug flag"), NULL, 0, &debug, 0, CTL_HW, sbp_node_num, CTL_CREATE, CTL_EOL)) != 0) goto err; return; err: aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); } static int sysctl_sbp_verify(SYSCTLFN_ARGS, int lower, int upper) { int error, t; struct sysctlnode node; node = *rnode; t = *(int*)rnode->sysctl_data; node.sysctl_data = &t; error = sysctl_lookup(SYSCTLFN_CALL(&node)); if (error || newp == NULL) return error; if (t < lower || t > upper) return EINVAL; *(int*)rnode->sysctl_data = t; return 0; } static int sysctl_sbp_verify_max_speed(SYSCTLFN_ARGS) { return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), 0, FWSPD_S400); } static int sysctl_sbp_verify_tags(SYSCTLFN_ARGS) { return sysctl_sbp_verify(SYSCTLFN_CALL(rnode), -1, 1); } #define NEED_RESPONSE 0 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE) #ifdef __sparc64__ /* iommu */ #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX) #else #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE) #endif struct sbp_ocb { uint32_t orb[8]; #define IND_PTR_OFFSET (sizeof(uint32_t) * 8) struct ind_ptr ind_ptr[SBP_IND_MAX]; struct scsipi_xfer *xs; struct sbp_dev *sdev; uint16_t index; uint16_t flags; /* XXX should be removed */ bus_dmamap_t dmamap; bus_addr_t bus_addr; STAILQ_ENTRY(sbp_ocb) ocb; }; #define SBP_ORB_DMA_SYNC(dma, i, op) \ bus_dmamap_sync((dma).dma_tag, (dma).dma_map, \ sizeof(struct sbp_ocb) * (i), \ sizeof(ocb->orb) + sizeof(ocb->ind_ptr), (op)); #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 scsipi_periph *periph; 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; STAILQ_HEAD(, fw_xfer) xferlist; int n_xfer; }; struct sbp_softc { struct firewire_dev_comm sc_fd; struct scsipi_adapter sc_adapter; struct scsipi_channel sc_channel; device_t sc_bus; struct lwp *sc_lwp; struct sbp_target sc_target; struct fw_bind sc_fwb; bus_dma_tag_t sc_dmat; struct timeval sc_last_busreset; int sc_flags; kmutex_t sc_mtx; kcondvar_t sc_cv; }; MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/IEEE1394"); MALLOC_DECLARE(M_SBP); static int sbpmatch(device_t, cfdata_t, void *); static void sbpattach(device_t, device_t, void *); static int sbpdetach(device_t, int); static void sbp_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, void *); static void sbp_minphys(struct buf *); static void sbp_show_sdev_info(struct sbp_dev *); static void sbp_alloc_lun(struct sbp_target *); static struct sbp_target *sbp_alloc_target(struct sbp_softc *, struct fw_device *); static void sbp_probe_lun(struct sbp_dev *); static void sbp_login_callout(void *); static void sbp_login(struct sbp_dev *); static void sbp_probe_target(void *); static void sbp_post_busreset(void *); static void sbp_post_explore(void *); #if NEED_RESPONSE static void sbp_loginres_callback(struct fw_xfer *); #endif static inline void sbp_xfer_free(struct fw_xfer *); static void sbp_reset_start_callback(struct fw_xfer *); static void sbp_reset_start(struct sbp_dev *); static void sbp_mgm_callback(struct fw_xfer *); static void sbp_scsipi_scan_target(void *); static inline void sbp_scan_dev(struct sbp_dev *); static void sbp_do_attach(struct fw_xfer *); static void sbp_agent_reset_callback(struct fw_xfer *); static void sbp_agent_reset(struct sbp_dev *); static void sbp_busy_timeout_callback(struct fw_xfer *); static void sbp_busy_timeout(struct sbp_dev *); static void sbp_orb_pointer_callback(struct fw_xfer *); static void sbp_orb_pointer(struct sbp_dev *, struct sbp_ocb *); static void sbp_doorbell_callback(struct fw_xfer *); static void sbp_doorbell(struct sbp_dev *); static struct fw_xfer *sbp_write_cmd(struct sbp_dev *, int, int); static void sbp_mgm_orb(struct sbp_dev *, int, struct sbp_ocb *); static void sbp_print_scsi_cmd(struct sbp_ocb *); static void sbp_scsi_status(struct sbp_status *, struct sbp_ocb *); static void sbp_fix_inq_data(struct sbp_ocb *); static void sbp_recv(struct fw_xfer *); static int sbp_logout_all(struct sbp_softc *); static void sbp_free_sdev(struct sbp_dev *); static void sbp_free_target(struct sbp_target *); static void sbp_scsipi_detach_sdev(struct sbp_dev *); static void sbp_scsipi_detach_target(struct sbp_target *); static void sbp_target_reset(struct sbp_dev *, int); static void sbp_mgm_timeout(void *); static void sbp_timeout(void *); static void sbp_action1(struct sbp_softc *, struct scsipi_xfer *); static void sbp_execute_ocb(struct sbp_ocb *, bus_dma_segment_t *, int); static struct sbp_ocb *sbp_dequeue_ocb(struct sbp_dev *, struct sbp_status *); static struct sbp_ocb *sbp_enqueue_ocb(struct sbp_dev *, struct sbp_ocb *); static struct sbp_ocb *sbp_get_ocb(struct sbp_dev *); 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 const 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 const char *orb_status1_object[] = { /* 0 */ "Operation request block (ORB)", /* 1 */ "Data buffer", /* 2 */ "Page table", /* 3 */ "Unable to specify" }; static const 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" }; CFATTACH_DECL_NEW(sbp, sizeof(struct sbp_softc), sbpmatch, sbpattach, sbpdetach, NULL); int sbpmatch(device_t parent, cfdata_t cf, void *aux) { struct fw_attach_args *fwa = aux; if (strcmp(fwa->name, "sbp") == 0) return 1; return 0; } static void sbpattach(device_t parent, device_t self, void *aux) { struct sbp_softc *sc = device_private(self); struct fw_attach_args *fwa = (struct fw_attach_args *)aux; struct firewire_comm *fc; struct scsipi_adapter *sc_adapter = &sc->sc_adapter; struct scsipi_channel *sc_channel = &sc->sc_channel; struct sbp_target *target = &sc->sc_target; int dv_unit; aprint_naive("\n"); aprint_normal(": SBP-2/SCSI over IEEE1394\n"); sc->sc_fd.dev = self; if (cold) sbp_cold++; sc->sc_fd.fc = fc = fwa->fc; mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_VM); cv_init(&sc->sc_cv, "sbp"); if (max_speed < 0) max_speed = fc->speed; sc->sc_dmat = fc->dmat; sc->sc_target.fwdev = NULL; sc->sc_target.luns = NULL; /* Initialize mutexes and lists before we can error out * to prevent crashes on detach */ mutex_init(&sc->sc_fwb.fwb_mtx, MUTEX_DEFAULT, IPL_VM); STAILQ_INIT(&sc->sc_fwb.xferlist); if (sbp_alloc_target(sc, fwa->fwdev) == NULL) return; sc_adapter->adapt_dev = sc->sc_fd.dev; sc_adapter->adapt_nchannels = 1; sc_adapter->adapt_max_periph = 1; sc_adapter->adapt_request = sbp_scsipi_request; sc_adapter->adapt_minphys = sbp_minphys; sc_adapter->adapt_openings = 8; sc_channel->chan_adapter = sc_adapter; sc_channel->chan_bustype = &scsi_bustype; sc_channel->chan_defquirks = PQUIRK_ONLYBIG; sc_channel->chan_channel = 0; sc_channel->chan_flags = SCSIPI_CHAN_CANGROW | SCSIPI_CHAN_NOSETTLE; sc_channel->chan_ntargets = 1; sc_channel->chan_nluns = target->num_lun; /* We set nluns 0 now */ sc_channel->chan_id = 1; sc->sc_bus = config_found(sc->sc_fd.dev, sc_channel, scsiprint); if (sc->sc_bus == NULL) { aprint_error_dev(self, "attach failed\n"); return; } /* We reserve 16 bit space (4 bytes X 64 unit X 256 luns) */ dv_unit = device_unit(sc->sc_fd.dev); sc->sc_fwb.start = SBP_DEV2ADDR(dv_unit, 0); sc->sc_fwb.end = SBP_DEV2ADDR(dv_unit, -1); /* pre-allocate xfer */ fw_xferlist_add(&sc->sc_fwb.xferlist, M_SBP, /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB / 2, fc, (void *)sc, sbp_recv); fw_bindadd(fc, &sc->sc_fwb); sc->sc_fd.post_busreset = sbp_post_busreset; sc->sc_fd.post_explore = sbp_post_explore; if (fc->status != FWBUSNOTREADY) { sbp_post_busreset((void *)sc); sbp_post_explore((void *)sc); } } static int sbpdetach(device_t self, int flags) { struct sbp_softc *sc = device_private(self); struct firewire_comm *fc = sc->sc_fd.fc; sbp_scsipi_detach_target(&sc->sc_target); if (sc->sc_target.fwdev && SBP_FWDEV_ALIVE(sc->sc_target.fwdev)) { sbp_logout_all(sc); /* XXX wait for logout completion */ mutex_enter(&sc->sc_mtx); cv_timedwait_sig(&sc->sc_cv, &sc->sc_mtx, hz/2); mutex_exit(&sc->sc_mtx); } sbp_free_target(&sc->sc_target); fw_bindremove(fc, &sc->sc_fwb); fw_xferlist_remove(&sc->sc_fwb.xferlist); mutex_destroy(&sc->sc_fwb.fwb_mtx); mutex_destroy(&sc->sc_mtx); cv_destroy(&sc->sc_cv); return 0; } static void sbp_scsipi_request(struct scsipi_channel *channel, scsipi_adapter_req_t req, void *arg) { struct sbp_softc *sc = device_private(channel->chan_adapter->adapt_dev); struct scsipi_xfer *xs = arg; int i; SBP_DEBUG(1) printf("Called sbp_scsipi_request\n"); END_DEBUG switch (req) { case ADAPTER_REQ_RUN_XFER: SBP_DEBUG(1) printf("Got req_run_xfer\n"); printf("xs control: 0x%08x, timeout: %d\n", xs->xs_control, xs->timeout); printf("opcode: 0x%02x\n", (int)xs->cmd->opcode); for (i = 0; i < 15; i++) printf("0x%02x ",(int)xs->cmd->bytes[i]); printf("\n"); END_DEBUG if (xs->xs_control & XS_CTL_RESET) { SBP_DEBUG(1) printf("XS_CTL_RESET not support\n"); END_DEBUG break; } #define SBPSCSI_SBP2_MAX_CDB 12 if (xs->cmdlen > SBPSCSI_SBP2_MAX_CDB) { SBP_DEBUG(0) printf( "sbp doesn't support cdb's larger than %d bytes\n", SBPSCSI_SBP2_MAX_CDB); END_DEBUG xs->error = XS_DRIVER_STUFFUP; scsipi_done(xs); return; } sbp_action1(sc, xs); break; case ADAPTER_REQ_GROW_RESOURCES: SBP_DEBUG(1) printf("Got req_grow_resources\n"); END_DEBUG break; case ADAPTER_REQ_SET_XFER_MODE: SBP_DEBUG(1) printf("Got set xfer mode\n"); END_DEBUG break; default: panic("Unknown request: %d\n", (int)req); } } static void sbp_minphys(struct buf *bp) { minphys(bp); } /* * Display device characteristics on the console */ static void sbp_show_sdev_info(struct sbp_dev *sdev) { struct fw_device *fwdev = sdev->target->fwdev; struct sbp_softc *sc = sdev->target->sbp; aprint_normal_dev(sc->sc_fd.dev, "ordered:%d type:%d EUI:%08x%08x node:%d speed:%d maxrec:%d\n", (sdev->type & 0x40) >> 6, (sdev->type & 0x1f), fwdev->eui.hi, fwdev->eui.lo, fwdev->dst, fwdev->speed, fwdev->maxrec); aprint_normal_dev(sc->sc_fd.dev, "%s '%s' '%s' '%s'\n", sdev->bustgtlun, sdev->vendor, sdev->product, sdev->revision); } static void sbp_alloc_lun(struct sbp_target *target) { struct crom_context cc; struct csrreg *reg; struct sbp_dev *sdev, **newluns; struct sbp_softc *sc; int maxlun, lun, i; sc = 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) aprint_normal_dev(sc->sc_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_scsipi_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) { aprint_error_dev(sc->sc_fd.dev, "realloc failed\n"); 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) { const int sbp_dev_p_sz = sizeof(struct sbp_dev *); memset(&newluns[target->num_lun], 0, sbp_dev_p_sz * (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) { aprint_error_dev(sc->sc_fd.dev, "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) { aprint_error_dev(sc->sc_fd.dev, "malloc failed\n"); goto next; } target->luns[lun] = sdev; sdev->lun_id = lun; sdev->target = target; STAILQ_INIT(&sdev->ocbs); callout_init(&sdev->login_callout, CALLOUT_MPSAFE); callout_setfunc(&sdev->login_callout, sbp_login_callout, sdev); sdev->status = SBP_DEV_RESET; new = 1; snprintf(sdev->bustgtlun, 32, "%s:%d:%d", device_xname(sc->sc_fd.dev), sdev->target->target_id, sdev->lun_id); if (!sc->sc_lwp) if (kthread_create( PRI_NONE, KTHREAD_MPSAFE, NULL, sbp_scsipi_scan_target, &sc->sc_target, &sc->sc_lwp, "sbp%d_attach", device_unit(sc->sc_fd.dev))) aprint_error_dev(sc->sc_fd.dev, "unable to create thread"); } sdev->flags |= VALID_LUN; sdev->type = (reg->val & 0xff0000) >> 16; if (new == 0) goto next; fwdma_alloc_setup(sc->sc_fd.dev, sc->sc_dmat, SBP_DMA_SIZE, &sdev->dma, sizeof(uint32_t), BUS_DMA_NOWAIT); if (sdev->dma.v_addr == NULL) { free(sdev, M_SBP); target->luns[lun] = NULL; goto next; } sdev->ocb = (struct sbp_ocb *)sdev->dma.v_addr; sdev->login = (struct sbp_login_res *)&sdev->ocb[SBP_QUEUE_LEN]; memset((char *)sdev->ocb, 0, sizeof(struct sbp_ocb) * SBP_QUEUE_LEN); STAILQ_INIT(&sdev->free_ocbs); for (i = 0; i < SBP_QUEUE_LEN; i++) { struct sbp_ocb *ocb = &sdev->ocb[i]; ocb->index = i; ocb->bus_addr = sdev->dma.bus_addr + sizeof(struct sbp_ocb) * i; if (bus_dmamap_create(sc->sc_dmat, 0x100000, SBP_IND_MAX, SBP_SEG_MAX, 0, 0, &ocb->dmamap)) { aprint_error_dev(sc->sc_fd.dev, "cannot create dmamap %d\n", i); /* XXX */ goto next; } sbp_free_ocb(sdev, ocb); /* into free queue */ } 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_scsipi_detach_sdev(sdev); sbp_free_sdev(sdev); target->luns[lun] = NULL; } } } static struct sbp_target * sbp_alloc_target(struct sbp_softc *sc, struct fw_device *fwdev) { struct sbp_target *target; struct crom_context cc; struct csrreg *reg; SBP_DEBUG(1) printf("sbp_alloc_target\n"); END_DEBUG /* new target */ target = &sc->sc_target; target->sbp = sc; target->fwdev = fwdev; target->target_id = 0; target->mgm_ocb_cur = NULL; SBP_DEBUG(1) printf("target: mgm_port: %x\n", 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_MPSAFE); target->luns = NULL; target->num_lun = 0; /* 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) { aprint_error_dev(sc->sc_fd.dev, "NULL management address\n"); target->fwdev = NULL; return NULL; } target->mgm_hi = 0xffff; target->mgm_lo = 0xf0000000 | (reg->val << 2); return target; } static void sbp_probe_lun(struct sbp_dev *sdev) { struct fw_device *fwdev; struct crom_context c, *cc = &c; struct csrreg *reg; memset(sdev->vendor, 0, sizeof(sdev->vendor)); memset(sdev->product, 0, 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 sbp_softc *sc = sdev->target->sbp; struct timeval delta; struct timeval t; int ticks = 0; microtime(&delta); timersub(&delta, &sc->sc_last_busreset, &delta); t.tv_sec = login_delay / 1000; t.tv_usec = (login_delay % 1000) * 1000; timersub(&t, &delta, &t); 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 = %lld usec = %ld ticks = %d\n", __func__, (long long)t.tv_sec, (long)t.tv_usec, ticks); END_DEBUG callout_schedule(&sdev->login_callout, ticks); } static void sbp_probe_target(void *arg) { struct sbp_target *target = (struct sbp_target *)arg; struct sbp_dev *sdev; int i; SBP_DEBUG(1) printf("%s %d\n", __func__, target->target_id); 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 || sdev->status == SBP_DEV_DEAD) continue; if (sdev->periph != NULL) { scsipi_periph_freeze(sdev->periph, 1); sdev->freeze++; } sbp_probe_lun(sdev); sbp_show_sdev_info(sdev); sbp_abort_all_ocbs(sdev, XS_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; } } } static void sbp_post_busreset(void *arg) { struct sbp_softc *sc = (struct sbp_softc *)arg; struct sbp_target *target = &sc->sc_target; struct fw_device *fwdev = target->fwdev; int alive; alive = SBP_FWDEV_ALIVE(fwdev); SBP_DEBUG(0) printf("sbp_post_busreset\n"); if (!alive) printf("not alive\n"); END_DEBUG microtime(&sc->sc_last_busreset); if (!alive) return; scsipi_channel_freeze(&sc->sc_channel, 1); } static void sbp_post_explore(void *arg) { struct sbp_softc *sc = (struct sbp_softc *)arg; struct sbp_target *target = &sc->sc_target; struct fw_device *fwdev = target->fwdev; int alive; alive = SBP_FWDEV_ALIVE(fwdev); SBP_DEBUG(0) printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold); if (!alive) printf("not alive\n"); END_DEBUG if (!alive) return; if (!firewire_phydma_enable) return; if (sbp_cold > 0) sbp_cold--; SBP_DEBUG(0) printf("sbp_post_explore: EUI:%08x%08x ", fwdev->eui.hi, fwdev->eui.lo); END_DEBUG sbp_probe_target((void *)target); if (target->num_lun == 0) sbp_free_target(target); scsipi_channel_thaw(&sc->sc_channel, 1); } #if NEED_RESPONSE static void sbp_loginres_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; struct sbp_softc *sc = sdev->target->sbp; SBP_DEBUG(1) printf("sbp_loginres_callback\n"); END_DEBUG /* recycle */ mutex_enter(&sc->sc_fwb.fwb_mtx); STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); mutex_exit(&sc->sc_fwb.fwb_mtx); return; } #endif static inline void sbp_xfer_free(struct fw_xfer *xfer) { struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; struct sbp_softc *sc = sdev->target->sbp; fw_xfer_unload(xfer); mutex_enter(&sc->sc_mtx); STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link); mutex_exit(&sc->sc_mtx); } 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) aprint_error("%s: sbp_reset_start failed: resp=%d\n", sdev->bustgtlun, xfer->resp); for (i = 0; i < target->num_lun; i++) { tsdev = target->luns[i]; if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN) sbp_login(tsdev); } } static void sbp_reset_start(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(0) printf("%s: sbp_reset_start: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); if (xfer == NULL) return; 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); if (fw_asyreq(xfer->fc, -1, xfer) != 0) sbp_xfer_free(xfer); } static void sbp_mgm_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) printf("%s: sbp_mgm_callback: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), sdev->bustgtlun); END_DEBUG sbp_xfer_free(xfer); return; } static void sbp_scsipi_scan_target(void *arg) { struct sbp_target *target = (struct sbp_target *)arg; struct sbp_softc *sc = target->sbp; struct sbp_dev *sdev; struct scsipi_channel *chan = &sc->sc_channel; struct scsibus_softc *sc_bus = device_private(sc->sc_bus); int lun, yet; do { mutex_enter(&sc->sc_mtx); cv_wait_sig(&sc->sc_cv, &sc->sc_mtx); mutex_exit(&sc->sc_mtx); yet = 0; for (lun = 0; lun < target->num_lun; lun++) { sdev = target->luns[lun]; if (sdev == NULL) continue; if (sdev->status != SBP_DEV_PROBE) { yet++; continue; } if (sdev->periph == NULL) { if (chan->chan_nluns < target->num_lun) chan->chan_nluns = target->num_lun; scsi_probe_bus(sc_bus, target->target_id, sdev->lun_id); sdev->periph = scsipi_lookup_periph(chan, target->target_id, lun); } sdev->status = SBP_DEV_ATTACHED; } } while (yet > 0); sc->sc_lwp = NULL; kthread_exit(0); /* NOTREACHED */ } static inline void sbp_scan_dev(struct sbp_dev *sdev) { struct sbp_softc *sc = sdev->target->sbp; sdev->status = SBP_DEV_PROBE; mutex_enter(&sc->sc_mtx); cv_signal(&sdev->target->sbp->sc_cv); mutex_exit(&sc->sc_mtx); } static void sbp_do_attach(struct fw_xfer *xfer) { struct sbp_dev *sdev; struct sbp_target *target; struct sbp_softc *sc; sdev = (struct sbp_dev *)xfer->sc; target = sdev->target; sc = target->sbp; SBP_DEBUG(0) printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun); END_DEBUG sbp_xfer_free(xfer); sbp_scan_dev(sdev); return; } static void sbp_agent_reset_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; struct sbp_softc *sc = sdev->target->sbp; SBP_DEBUG(1) printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun); END_DEBUG if (xfer->resp != 0) aprint_error_dev(sc->sc_fd.dev, "%s:%s: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp); sbp_xfer_free(xfer); if (sdev->periph != NULL) { scsipi_periph_thaw(sdev->periph, sdev->freeze); scsipi_channel_thaw(&sc->sc_channel, 0); sdev->freeze = 0; } } static void sbp_agent_reset(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(0) printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), __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); if (fw_asyreq(xfer->fc, -1, xfer) != 0) sbp_xfer_free(xfer); sbp_abort_all_ocbs(sdev, XS_RESET); } static void sbp_busy_timeout_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), __func__, sdev->bustgtlun); END_DEBUG sbp_xfer_free(xfer); sbp_agent_reset(sdev); } static void sbp_busy_timeout(struct sbp_dev *sdev) { struct fw_pkt *fp; struct fw_xfer *xfer; SBP_DEBUG(0) printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), __func__, sdev->bustgtlun); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); if (xfer == NULL) return; 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); if (fw_asyreq(xfer->fc, -1, xfer) != 0) sbp_xfer_free(xfer); } static void sbp_orb_pointer_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; struct sbp_softc *sc = sdev->target->sbp; SBP_DEBUG(1) printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun); END_DEBUG if (xfer->resp != 0) aprint_error_dev(sc->sc_fd.dev, "%s:%s: xfer->resp = %d\n", __func__, sdev->bustgtlun, 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 sbp_softc *sc = sdev->target->sbp; struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(1) printf("%s:%s:%s: 0x%08x\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, (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->hand = sbp_orb_pointer_callback; fp = &xfer->send.hdr; fp->mode.wreqb.len = 8; fp->mode.wreqb.extcode = 0; xfer->send.payload[0] = htonl(((sc->sc_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->xs->error = XS_DRIVER_STUFFUP; scsipi_done(ocb->xs); } } static void sbp_doorbell_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev = (struct sbp_dev *)xfer->sc; struct sbp_softc *sc = sdev->target->sbp; SBP_DEBUG(1) printf("%s:%s:%s\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun); END_DEBUG if (xfer->resp != 0) { aprint_error_dev(sc->sc_fd.dev, "%s: xfer->resp = %d\n", __func__, xfer->resp); } sbp_xfer_free(xfer); sdev->flags &= ~ORB_DOORBELL_ACTIVE; if ((sdev->flags & ORB_DOORBELL_NEED) != 0) { sdev->flags &= ~ORB_DOORBELL_NEED; sbp_doorbell(sdev); } return; } static void sbp_doorbell(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(1) printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), __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); if (fw_asyreq(xfer->fc, -1, xfer) != 0) sbp_xfer_free(xfer); } static struct fw_xfer * sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) { struct sbp_softc *sc; struct fw_xfer *xfer; struct fw_pkt *fp; struct sbp_target *target; int new = 0; target = sdev->target; sc = target->sbp; mutex_enter(&sc->sc_mtx); xfer = STAILQ_FIRST(&target->xferlist); if (xfer == NULL) { if (target->n_xfer > 5 /* XXX */) { aprint_error_dev(sc->sc_fd.dev, "no more xfer for this target\n"); mutex_exit(&sc->sc_mtx); return NULL; } xfer = fw_xfer_alloc_buf(M_SBP, 8, 0); if (xfer == NULL) { aprint_error_dev(sc->sc_fd.dev, "fw_xfer_alloc_buf failed\n"); mutex_exit(&sc->sc_mtx); return NULL; } target->n_xfer++; SBP_DEBUG(0) printf("sbp: alloc %d xfer\n", target->n_xfer); END_DEBUG new = 1; } else STAILQ_REMOVE_HEAD(&target->xferlist, link); mutex_exit(&sc->sc_mtx); microtime(&xfer->tv); if (new) { xfer->recv.pay_len = 0; xfer->send.spd = min(target->fwdev->speed, max_speed); xfer->fc = target->sbp->sc_fd.fc; } if (tcode == FWTCODE_WREQB) xfer->send.pay_len = 8; else xfer->send.pay_len = 0; xfer->sc = (void *)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 | 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, dv_unit; target = sdev->target; nid = target->sbp->sc_fd.fc->nodeid | FWLOCALBUS; dv_unit = device_unit(target->sbp->sc_fd.dev); mutex_enter(&target->sbp->sc_mtx); if (func == ORB_FUN_RUNQUEUE) { ocb = STAILQ_FIRST(&target->mgm_ocb_queue); if (target->mgm_ocb_cur != NULL || ocb == NULL) { mutex_exit(&target->sbp->sc_mtx); return; } STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb); mutex_exit(&target->sbp->sc_mtx); goto start; } if ((ocb = sbp_get_ocb(sdev)) == NULL) { mutex_exit(&target->sbp->sc_mtx); /* XXX */ return; } mutex_exit(&target->sbp->sc_mtx); ocb->flags = OCB_ACT_MGM; ocb->sdev = sdev; memset(ocb->orb, 0, sizeof(ocb->orb)); ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); ocb->orb[7] = htonl(SBP_DEV2ADDR(dv_unit, sdev->lun_id)); SBP_DEBUG(0) printf("%s:%s:%s: %s\n", device_xname(sdev->target->sbp->sc_fd.dev), __func__, sdev->bustgtlun, orb_fun_name[(func>>16)&0xf]); END_DEBUG switch (func) { case ORB_FUN_LGI: { const off_t sbp_login_off = sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; ocb->orb[0] = ocb->orb[1] = 0; /* password */ ocb->orb[2] = htonl(nid << 16); ocb->orb[3] = htonl(sdev->dma.bus_addr + sbp_login_off); 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); bus_dmamap_sync(sdev->dma.dma_tag, sdev->dma.dma_map, sbp_login_off, SBP_LOGIN_SIZE, 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 */ mutex_enter(&target->sbp->sc_mtx); STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb); mutex_exit(&target->sbp->sc_mtx); return; } start: target->mgm_ocb_cur = ocb; callout_reset(&target->mgm_ocb_timeout, 5 * hz, sbp_mgm_timeout, 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); /* cache writeback & invalidate(required ORB_FUN_LGI func) */ /* when abort_ocb, should sync POST ope ? */ SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_PREWRITE); if (fw_asyreq(xfer->fc, -1, xfer) != 0) sbp_xfer_free(xfer); } static void sbp_print_scsi_cmd(struct sbp_ocb *ocb) { struct scsipi_xfer *xs = ocb->xs; printf("%s:%d:%d:" " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," " flags: 0x%02x, %db cmd/%db data\n", device_xname(ocb->sdev->target->sbp->sc_fd.dev), xs->xs_periph->periph_target, xs->xs_periph->periph_lun, xs->cmd->opcode, xs->cmd->bytes[0], xs->cmd->bytes[1], xs->cmd->bytes[2], xs->cmd->bytes[3], xs->cmd->bytes[4], xs->cmd->bytes[5], xs->cmd->bytes[6], xs->cmd->bytes[7], xs->cmd->bytes[8], xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), xs->cmdlen, xs->datalen); } 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 = &ocb->xs->sense.scsi_sense; sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->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_CHECK: case SCSI_BUSY: case SCSI_TERMINATED: if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) sense->response_code = SSD_RCODE_CURRENT; else sense->response_code = SSD_RCODE_DEFERRED; if (sbp_cmd_status->valid) sense->response_code |= SSD_RCODE_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; memcpy(sense->info, &sbp_cmd_status->info, 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; memcpy(sense->csi, &sbp_cmd_status->cdb, 4); sense->asc = sbp_cmd_status->s_code; sense->ascq = sbp_cmd_status->s_qlfr; sense->fru = sbp_cmd_status->fru; memcpy(sense->sks.sks_bytes, sbp_cmd_status->s_keydep, 3); ocb->xs->error = XS_SENSE; ocb->xs->xs_status = sbp_cmd_status->status; /* { uint8_t j, *tmp; tmp = sense; for (j = 0; j < 32; j += 8) aprint_normal( "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: aprint_error_dev(ocb->sdev->target->sbp->sc_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) { struct scsipi_xfer *xs = ocb->xs; struct sbp_dev *sdev; struct scsipi_inquiry_data *inq = (struct scsipi_inquiry_data *)xs->data; sdev = ocb->sdev; #if 0 /* * NetBSD is assuming always 0 for EVPD-bit and 'Page Code'. */ #define SI_EVPD 0x01 if (xs->cmd->bytes[0] & SI_EVPD) return; #endif SBP_DEBUG(1) printf("%s:%s:%s\n", device_xname(sdev->target->sbp->sc_fd.dev), __func__, sdev->bustgtlun); END_DEBUG switch (inq->device & SID_TYPE) { case T_DIRECT: #if 0 /* * XXX Convert Direct Access device to RBC. * I've never seen FireWire DA devices which support READ_6. */ if ((inq->device & SID_TYPE) == T_DIRECT) inq->device |= T_SIMPLE_DIRECT; /* T_DIRECT == 0 */ #endif /* FALLTHROUGH */ case T_SIMPLE_DIRECT: /* * Override vendor/product/revision information. * Some devices sometimes return strange strings. */ #if 1 memcpy(inq->vendor, sdev->vendor, sizeof(inq->vendor)); memcpy(inq->product, sdev->product, sizeof(inq->product)); memcpy(inq->revision + 2, sdev->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->flags3 |= SID_CmdQue; else if (sbp_tags < 0) inq->flags3 &= ~SID_CmdQue; } static void sbp_recv(struct fw_xfer *xfer) { struct fw_pkt *rfp; #if NEED_RESPONSE struct fw_pkt *sfp; #endif struct sbp_softc *sc; 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, 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])); */ sc = (struct sbp_softc *)xfer->sc; if (xfer->resp != 0) { aprint_error_dev(sc->sc_fd.dev, "sbp_recv: xfer->resp = %d\n", xfer->resp); goto done0; } if (xfer->recv.payload == NULL) { aprint_error_dev(sc->sc_fd.dev, "sbp_recv: xfer->recv.payload == NULL\n"); goto done0; } rfp = &xfer->recv.hdr; if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) { aprint_error_dev(sc->sc_fd.dev, "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 target = &sc->sc_target; l = SBP_ADDR2LUN(addr); if (l >= target->num_lun || target->luns[l] == NULL) { aprint_error_dev(sc->sc_fd.dev, "sbp_recv1: invalid lun %d (target=%d)\n", l, target->target_id); goto done0; } sdev = target->luns[l]; ocb = NULL; switch (sbp_status->src) { case SRC_NEXT_EXISTS: case SRC_NO_NEXT: /* 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) aprint_error_dev(sc->sc_fd.dev, "%s:%s: No ocb(%x) on the queue\n", __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo)); break; case SRC_UNSOL: /* unsolicit */ aprint_error_dev(sc->sc_fd.dev, "%s:%s: unsolicit status received\n", __func__, sdev->bustgtlun); break; default: aprint_error_dev(sc->sc_fd.dev, "%s:%s: unknown sbp_status->src\n", __func__, sdev->bustgtlun); } status_valid0 = (sbp_status->src < 2 && sbp_status->resp == SBP_REQ_CMP && sbp_status->dead == 0); status_valid = (status_valid0 && sbp_status->status == 0); if (!status_valid0 || debug > 2) { int status; SBP_DEBUG(0) printf("%s:%s:%s: ORB status src:%x resp:%x dead:%x" " len:%x stat:%x orb:%x%08x\n", device_xname(sc->sc_fd.dev), __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 printf("%s:%s\n", device_xname(sc->sc_fd.dev), sdev->bustgtlun); status = sbp_status->status; switch (sbp_status->resp) { case SBP_REQ_CMP: if (status > MAX_ORB_STATUS0) printf("%s\n", orb_status0[MAX_ORB_STATUS0]); else printf("%s\n", orb_status0[status]); break; case SBP_TRANS_FAIL: printf("Obj: %s, Error: %s\n", orb_status1_object[(status>>6) & 3], orb_status1_serial_bus_error[status & 0xf]); break; case SBP_ILLE_REQ: printf("Illegal request\n"); break; case SBP_VEND_DEP: 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->periph != NULL) { scsipi_periph_freeze(sdev->periph, 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: { const struct fwdma_alloc *dma = &sdev->dma; const off_t sbp_login_off = sizeof(struct sbp_ocb) * SBP_QUEUE_LEN; bus_dmamap_sync(dma->dma_tag, dma->dma_map, sbp_login_off, SBP_LOGIN_SIZE, 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) printf("%s:%s:%s: login:" " len %d, ID %d, cmd %08x%08x," " recon_hold %d\n", device_xname(sc->sc_fd.dev), __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? */ aprint_error_dev(sc->sc_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) printf("%s:%s:%s: reconnect:" " len %d, ID %d, cmd %08x%08x\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); END_DEBUG sbp_agent_reset(sdev); } else { /* reconnection hold time exceed? */ SBP_DEBUG(0) aprint_error_dev(sc->sc_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: aprint_error_dev(sc->sc_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->xs != NULL) { struct scsipi_xfer *xs = ocb->xs; if (sbp_status->len > 1) sbp_scsi_status(sbp_status, ocb); else if (sbp_status->resp != SBP_REQ_CMP) xs->error = XS_DRIVER_STUFFUP; else { xs->error = XS_NOERROR; xs->resid = 0; } /* fix up inq data */ if (xs->cmd->opcode == INQUIRY) sbp_fix_inq_data(ocb); scsipi_done(xs); } 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; if (fw_asyreq(xfer->fc, -1, xfer) != 0) { aprint_error_dev(sc->sc_fd.dev, "mgm_orb failed\n"); mutex_enter(&sc->sc_fwb.fwb_mtx); STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); mutex_exit(&sc->sc_fwb.fwb_mtx); } #else /* recycle */ mutex_enter(&sc->sc_fwb.fwb_mtx); STAILQ_INSERT_TAIL(&sc->sc_fwb.xferlist, xfer, link); mutex_exit(&sc->sc_fwb.fwb_mtx); #endif return; } static int sbp_logout_all(struct sbp_softc *sbp) { struct sbp_target *target; struct sbp_dev *sdev; int i; SBP_DEBUG(0) printf("sbp_logout_all\n"); END_DEBUG target = &sbp->sc_target; if (target->luns != NULL) { for (i = 0; i < target->num_lun; i++) { sdev = target->luns[i]; 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 void sbp_free_sdev(struct sbp_dev *sdev) { struct sbp_softc *sc = sdev->target->sbp; int i; if (sdev == NULL) return; for (i = 0; i < SBP_QUEUE_LEN; i++) bus_dmamap_destroy(sc->sc_dmat, sdev->ocb[i].dmamap); fwdma_free(sdev->dma.dma_tag, sdev->dma.dma_map, sdev->dma.v_addr); free(sdev, M_SBP); sdev = NULL; } static void sbp_free_target(struct sbp_target *target) { struct fw_xfer *xfer, *next; int i; if (target->luns == NULL) return; callout_stop(&target->mgm_ocb_timeout); 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 void sbp_scsipi_detach_sdev(struct sbp_dev *sdev) { struct sbp_target *target; struct sbp_softc *sbp; if (sdev == NULL) return; target = sdev->target; if (target == NULL) return; sbp = target->sbp; if (sdev->status == SBP_DEV_DEAD) return; if (sdev->status == SBP_DEV_RESET) return; if (sdev->periph != NULL) { scsipi_periph_thaw(sdev->periph, sdev->freeze); scsipi_channel_thaw(&sbp->sc_channel, 0); /* XXXX */ sdev->freeze = 0; if (scsipi_target_detach(&sbp->sc_channel, target->target_id, sdev->lun_id, DETACH_FORCE) != 0) { aprint_error_dev(sbp->sc_fd.dev, "detach failed\n"); } sdev->periph = NULL; } sbp_abort_all_ocbs(sdev, XS_DRIVER_STUFFUP); } static void sbp_scsipi_detach_target(struct sbp_target *target) { struct sbp_softc *sbp = target->sbp; int i; if (target->luns != NULL) { SBP_DEBUG(0) printf("sbp_detach_target %d\n", target->target_id); END_DEBUG for (i = 0; i < target->num_lun; i++) sbp_scsipi_detach_sdev(target->luns[i]); if (config_detach(sbp->sc_bus, DETACH_FORCE) != 0) aprint_error_dev(sbp->sc_fd.dev, "%d detach failed\n", target->target_id); sbp->sc_bus = NULL; } } static void sbp_target_reset(struct sbp_dev *sdev, int method) { struct sbp_target *target = sdev->target; struct sbp_dev *tsdev; int i; 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; if (sdev->periph != NULL) { scsipi_periph_freeze(tsdev->periph, 1); tsdev->freeze++; } sbp_abort_all_ocbs(tsdev, XS_TIMEOUT); if (method == 2) tsdev->status = SBP_DEV_LOGIN; } switch (method) { case 1: aprint_error("target reset\n"); sbp_mgm_orb(sdev, ORB_FUN_RST, NULL); break; case 2: aprint_error("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; aprint_error_dev(sdev->target->sbp->sc_fd.dev, "%s:%s: request timeout(mgm orb:0x%08x) ... ", __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); target->mgm_ocb_cur = NULL; sbp_free_ocb(sdev, ocb); #if 0 /* XXX */ aprint_error("run next request\n"); sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL); #endif aprint_error_dev(sdev->target->sbp->sc_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; aprint_error_dev(sdev->target->sbp->sc_fd.dev, "%s:%s: request timeout(cmd orb:0x%08x) ... ", __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr); sdev->timeout++; switch (sdev->timeout) { case 1: aprint_error("agent reset\n"); if (sdev->periph != NULL) { scsipi_periph_freeze(sdev->periph, 1); sdev->freeze++; } sbp_abort_all_ocbs(sdev, XS_TIMEOUT); sbp_agent_reset(sdev); break; case 2: case 3: sbp_target_reset(sdev, sdev->timeout - 1); break; default: aprint_error("\n"); #if 0 /* XXX give up */ sbp_scsipi_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 sbp_softc *sc, struct scsipi_xfer *xs) { struct sbp_target *target = &sc->sc_target; struct sbp_dev *sdev = NULL; struct sbp_ocb *ocb; int speed, flag, error; void *cdb; /* target:lun -> sdev mapping */ if (target->fwdev != NULL && xs->xs_periph->periph_lun < target->num_lun) { sdev = target->luns[xs->xs_periph->periph_lun]; if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED && sdev->status != SBP_DEV_PROBE) sdev = NULL; } if (sdev == NULL) { SBP_DEBUG(1) printf("%s:%d:%d: Invalid target (target needed)\n", sc ? device_xname(sc->sc_fd.dev) : "???", xs->xs_periph->periph_target, xs->xs_periph->periph_lun); END_DEBUG xs->error = XS_DRIVER_STUFFUP; scsipi_done(xs); return; } SBP_DEBUG(2) printf("%s:%d:%d:" " cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x," " flags: 0x%02x, %db cmd/%db data\n", device_xname(sc->sc_fd.dev), xs->xs_periph->periph_target, xs->xs_periph->periph_lun, xs->cmd->opcode, xs->cmd->bytes[0], xs->cmd->bytes[1], xs->cmd->bytes[2], xs->cmd->bytes[3], xs->cmd->bytes[4], xs->cmd->bytes[5], xs->cmd->bytes[6], xs->cmd->bytes[7], xs->cmd->bytes[8], xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT), xs->cmdlen, xs->datalen); END_DEBUG mutex_enter(&sc->sc_mtx); ocb = sbp_get_ocb(sdev); mutex_exit(&sc->sc_mtx); if (ocb == NULL) { xs->error = XS_REQUEUE; if (sdev->freeze == 0) { scsipi_periph_freeze(sdev->periph, 1); sdev->freeze++; } scsipi_done(xs); return; } ocb->flags = OCB_ACT_CMD; ocb->sdev = sdev; ocb->xs = xs; ocb->orb[0] = htonl(1 << 31); ocb->orb[1] = 0; ocb->orb[2] = htonl(((sc->sc_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 ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) == XS_CTL_DATA_IN) { ocb->orb[4] |= htonl(ORB_CMD_IN); flag = BUS_DMA_READ; } else flag = BUS_DMA_WRITE; cdb = xs->cmd; memcpy((void *)&ocb->orb[5], cdb, xs->cmdlen); /* 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 (xs->datalen > 0) { error = bus_dmamap_load(sc->sc_dmat, ocb->dmamap, xs->data, xs->datalen, NULL, BUS_DMA_NOWAIT | flag); if (error) { aprint_error_dev(sc->sc_fd.dev, "DMA map load error %d\n", error); xs->error = XS_DRIVER_STUFFUP; scsipi_done(xs); } else sbp_execute_ocb(ocb, ocb->dmamap->dm_segs, ocb->dmamap->dm_nsegs); } else sbp_execute_ocb(ocb, NULL, 0); return; } static void sbp_execute_ocb(struct sbp_ocb *ocb, bus_dma_segment_t *segments, int seg) { struct sbp_ocb *prev; bus_dma_segment_t *s; int i; 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; 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(%jd) is less than 16." "(seg=%d/%d)\n", (uintmax_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) { struct sbp_softc *sc = ocb->sdev->target->sbp; const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 0, ocb->dmamap->dm_mapsize, flag); } prev = sbp_enqueue_ocb(ocb->sdev, ocb); SBP_ORB_DMA_SYNC(ocb->sdev->dma, ocb->index, 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 struct sbp_ocb * sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status) { struct sbp_softc *sc = sdev->target->sbp; struct sbp_ocb *ocb; struct sbp_ocb *next; int order = 0; SBP_DEBUG(1) printf("%s:%s:%s: 0x%08x src %d\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src); END_DEBUG mutex_enter(&sc->sc_mtx); for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { next = STAILQ_NEXT(ocb, ocb); if (OCB_MATCH(ocb, sbp_status)) { /* found */ SBP_ORB_DMA_SYNC(sdev->dma, ocb->index, BUS_DMASYNC_POSTWRITE); STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); if (ocb->xs != NULL) callout_stop(&ocb->xs->xs_callout); if (ntohl(ocb->orb[4]) & 0xffff) { const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 0, ocb->dmamap->dm_mapsize, flag); bus_dmamap_unload(sc->sc_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; } } break; } else order++; } mutex_exit(&sc->sc_mtx); if (ocb && use_doorbell) { /* * 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); } SBP_DEBUG(0) if (ocb && order > 0) printf("%s:%s:%s: unordered execution order:%d\n", device_xname(sc->sc_fd.dev), __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_softc *sc = sdev->target->sbp; struct sbp_ocb *tocb, *prev, *prev2; SBP_DEBUG(1) printf("%s:%s:%s: 0x%08jx\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); END_DEBUG mutex_enter(&sc->sc_mtx); prev = NULL; STAILQ_FOREACH(tocb, &sdev->ocbs, ocb) prev = tocb; prev2 = prev; STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); mutex_exit(&sc->sc_mtx); callout_reset(&ocb->xs->xs_callout, mstohz(ocb->xs->timeout), sbp_timeout, ocb); if (use_doorbell && prev == NULL) prev2 = sdev->last_ocb; if (prev2 != NULL) { SBP_DEBUG(2) 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_softc *sc = sdev->target->sbp; struct sbp_ocb *ocb; KASSERT(mutex_owned(&sc->sc_mtx)); ocb = STAILQ_FIRST(&sdev->free_ocbs); if (ocb == NULL) { sdev->flags |= ORB_SHORTAGE; aprint_error_dev(sc->sc_fd.dev, "ocb shortage!!!\n"); return NULL; } STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb); ocb->xs = NULL; return ocb; } static void sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) { struct sbp_softc *sc = sdev->target->sbp; int count; ocb->flags = 0; ocb->xs = NULL; mutex_enter(&sc->sc_mtx); STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb); mutex_exit(&sc->sc_mtx); if (sdev->flags & ORB_SHORTAGE) { sdev->flags &= ~ORB_SHORTAGE; count = sdev->freeze; sdev->freeze = 0; if (sdev->periph) scsipi_periph_thaw(sdev->periph, count); scsipi_channel_thaw(&sc->sc_channel, 0); } } static void sbp_abort_ocb(struct sbp_ocb *ocb, int status) { struct sbp_softc *sc; struct sbp_dev *sdev; sdev = ocb->sdev; sc = sdev->target->sbp; SBP_DEBUG(0) printf("%s:%s:%s: sbp_abort_ocb 0x%jx\n", device_xname(sc->sc_fd.dev), __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr); END_DEBUG SBP_DEBUG(1) if (ocb->xs != NULL) sbp_print_scsi_cmd(ocb); END_DEBUG if (ntohl(ocb->orb[4]) & 0xffff) { const int flag = (ntohl(ocb->orb[4]) & ORB_CMD_IN) ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; bus_dmamap_sync(sc->sc_dmat, ocb->dmamap, 0, ocb->dmamap->dm_mapsize, flag); bus_dmamap_unload(sc->sc_dmat, ocb->dmamap); } if (ocb->xs != NULL) { callout_stop(&ocb->xs->xs_callout); ocb->xs->error = status; scsipi_done(ocb->xs); } sbp_free_ocb(sdev, ocb); } static void sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) { struct sbp_softc *sc = sdev->target->sbp; struct sbp_ocb *ocb, *next; STAILQ_HEAD(, sbp_ocb) temp; mutex_enter(&sc->sc_mtx); STAILQ_INIT(&temp); STAILQ_CONCAT(&temp, &sdev->ocbs); STAILQ_INIT(&sdev->ocbs); mutex_exit(&sc->sc_mtx); 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; } }