/* * Copyright (c) 1998,1999,2000,2001 Katsushi Kobayashi and Hidetosh Shimokawa * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the acknowledgement as bellow: * * This product includes software developed by K. Kobayashi and H. Shimokawa * * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: head/sys/dev/firewire/sbp.c 105633 2002-10-21 15:36:59Z simokawa $ * */ #include #include #include #include #include #include #include #include #include /* for struct devstat */ #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 #define SBP_NUM_LUNS 8 /* limited by CAM_SCSI2_MAXLUN in cam_xpt.c */ #define SBP_QUEUE_LEN 4 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS) #define SBP_INITIATOR 7 #define SBP_ESELECT_TIMEOUT 1 #define SBP_BIND_HI 0x1 #define SBP_DEV2ADDR(u, t, l) \ ((((u) & 0xff) << 16) | (((l) & 0xff) << 8) | (((t) & 0x3f) << 2)) #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f) #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff) #define ORB_NOTIFY (1 << 31) #define ORB_FMT_STD (0 << 29) #define ORB_FMT_VED (2 << 29) #define ORB_FMT_NOP (3 << 29) #define ORB_FMT_MSK (3 << 29) #define ORB_EXV (1 << 28) /* */ #define ORB_CMD_IN (1 << 27) /* */ #define ORB_CMD_SPD(x) ((x) << 24) #define ORB_CMD_MAXP(x) ((x) << 20) #define ORB_RCN_TMO(x) ((x) << 20) #define ORB_CMD_PTBL (1 << 19) #define ORB_CMD_PSZ(x) ((x) << 16) #define ORB_FUN_LGI (0 << 16) #define ORB_FUN_QLG (1 << 16) #define ORB_FUN_RCN (3 << 16) #define ORB_FUN_LGO (7 << 16) #define ORB_FUN_ATA (0xb << 16) #define ORB_FUN_ATS (0xc << 16) #define ORB_FUN_LUR (0xe << 16) #define ORB_FUN_RST (0xf << 16) #define ORB_FUN_MSK (0xf << 16) static char *orb_fun_name[] = { /* 0 */ "LOGIN", /* 1 */ "QUERY LOGINS", /* 2 */ "Reserved", /* 3 */ "RECONNECT", /* 4 */ "SET PASSWORD", /* 5 */ "Reserved", /* 6 */ "Reserved", /* 7 */ "LOGOUT", /* 8 */ "Reserved", /* 9 */ "Reserved", /* A */ "Reserved", /* B */ "ABORT TASK", /* C */ "ABORT TASK SET", /* D */ "Reserved", /* E */ "LOGICAL UNIT RESET", /* F */ "TARGET RESET" }; #define ORB_RES_CMPL 0 #define ORB_RES_FAIL 1 #define ORB_RES_ILLE 2 #define ORB_RES_VEND 3 static int debug = 1; static int auto_login = 1; static int max_speed = 2; SYSCTL_DECL(_hw_firewire); SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem"); SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0, "SBP debug flag"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0, "SBP perform login automatically"); SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0, "SBP transfer max speed"); #define SBP_DEBUG(x) if (debug > x) { #define END_DEBUG } #define NEED_RESPONSE 0 struct ind_ptr { u_int32_t hi,lo; }; #define SBP_IND_MAX 0x20 struct sbp_ocb { STAILQ_ENTRY(sbp_ocb) ocb; union ccb *ccb; volatile u_int32_t orb[8]; volatile struct ind_ptr ind_ptr[SBP_IND_MAX]; struct sbp_dev *sdev; int flags; bus_dmamap_t dmamap; }; #define OCB_ACT_MGM 0 #define OCB_ACT_CMD 1 #define OCB_ACT_MASK 3 #define OCB_RESERVED 0x10 #define OCB_DONE 0x20 #define SBP_RESOURCE_SHORTAGE 0x10 struct sbp_login_res{ #if FW_ENDIANSWAP == 0 && BYTE_ORDER == LITTLE_ENDIAN u_int16_t len; u_int16_t id; u_int16_t res0; u_int16_t cmd_hi; u_int32_t cmd_lo; u_int16_t res1; u_int16_t recon_hold; #else u_int16_t id; u_int16_t len; u_int16_t cmd_hi; u_int16_t res0; u_int32_t cmd_lo; u_int16_t recon_hold; u_int16_t res1; #endif }; struct sbp_status{ #if FW_ENDIANSWAP == 0 && BYTE_ORDER == LITTLE_ENDIAN u_int8_t len:3, dead:1, resp:2, src:2; u_int8_t status:8; u_int16_t orb_hi; u_int32_t orb_lo; u_int32_t data[6]; #else u_int16_t orb_hi; u_int8_t status:8; u_int8_t len:3, dead:1, resp:2, src:2; u_int32_t orb_lo; u_int32_t data[6]; #endif }; struct sbp_cmd_status{ #define SBP_SFMT_CURR 0 #define SBP_SFMT_DEFER 1 #if FW_ENDIANSWAP == 0 && BYTE_ORDER == LITTLE_ENDIAN u_int8_t status:6, sfmt:2; u_int8_t s_key:4, ill_len:1, eom:1, mark:1, valid:1; u_int8_t s_code; u_int8_t s_qlfr; u_int32_t info; u_int32_t cdb; u_int32_t fru:8, s_keydep:24; u_int32_t vend[2]; #else u_int8_t s_qlfr; u_int8_t s_code; u_int8_t s_key:4, ill_len:1, eom:1, mark:1, valid:1; u_int8_t status:6, sfmt:2; u_int32_t info; u_int32_t cdb; u_int32_t s_keydep:24, fru:8; u_int32_t vend[2]; #endif }; struct sbp_dev{ #define SBP_DEV_RESET 0 /* accept login */ #define SBP_DEV_LOGIN 1 /* to login */ #define SBP_DEV_RECONN 2 /* to reconnect */ #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 */ int status; int lun_id; struct cam_path *path; struct sbp_target *target; struct sbp_login_res login; STAILQ_HEAD(, sbp_ocb) ocbs; char vendor[32]; char product[32]; char revision[10]; }; struct sbp_target { int target_id; int num_lun; struct sbp_dev *luns; struct sbp_softc *sbp; struct fw_device *fwdev; u_int32_t mgm_hi, mgm_lo; }; struct sbp_softc { struct firewire_dev_comm fd; unsigned char flags; struct cam_sim *sim; struct sbp_target targets[SBP_NUM_TARGETS]; struct fw_bind fwb; STAILQ_HEAD(, sbp_ocb) free_ocbs; struct sbp_ocb *ocb; bus_dma_tag_t dmat; }; static void sbp_post_explore __P((void *)); static void sbp_recv __P((struct fw_xfer *)); static void sbp_login_callback __P((struct fw_xfer *)); static void sbp_cmd_callback __P((struct fw_xfer *)); static void sbp_orb_pointer __P((struct sbp_dev *, struct sbp_ocb *)); static void sbp_execute_ocb __P((void *, bus_dma_segment_t *, int, int)); static void sbp_free_ocb __P((struct sbp_softc *, struct sbp_ocb *)); static void sbp_abort_ocb __P((struct sbp_ocb *, int)); static void sbp_abort_all_ocbs __P((struct sbp_dev *, int)); static struct fw_xfer * sbp_write_cmd __P((struct sbp_dev *, int, int)); static struct sbp_ocb * sbp_get_ocb __P((struct sbp_softc *)); static struct sbp_ocb * sbp_enqueue_ocb __P((struct sbp_dev *, struct sbp_ocb *)); static struct sbp_ocb * sbp_dequeue_ocb __P((struct sbp_dev *, u_int32_t)); static void sbp_detach_target __P((struct sbp_target *)); static void sbp_timeout __P((void *arg)); static void sbp_mgm_orb __P((struct sbp_dev *, int)); 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_callback(struct cam_periph *periph, union ccb *ccb); static void sbp_cam_scan_lun(struct sbp_dev *sdev); static char *orb_status0[] = { /* 0 */ "No additional information to report", /* 1 */ "Request type not supported", /* 2 */ "Speed not supported", /* 3 */ "Page size not supported", /* 4 */ "Access denied", /* 5 */ "Logical unit not supported", /* 6 */ "Maximum payload too small", /* 7 */ "Reserved for future standardization", /* 8 */ "Resources unavailable", /* 9 */ "Function rejected", /* A */ "Login ID not recognized", /* B */ "Dummy ORB completed", /* C */ "Request aborted", /* FF */ "Unspecified error" #define MAX_ORB_STATUS0 0xd }; static char *orb_status1_object[] = { /* 0 */ "Operation request block (ORB)", /* 1 */ "Data buffer", /* 2 */ "Page table", /* 3 */ "Unable to specify" }; static char *orb_status1_serial_bus_error[] = { /* 0 */ "Missing acknowledge", /* 1 */ "Reserved; not to be used", /* 2 */ "Time-out error", /* 3 */ "Reserved; not to be used", /* 4 */ "Busy retry limit exceeded(X)", /* 5 */ "Busy retry limit exceeded(A)", /* 6 */ "Busy retry limit exceeded(B)", /* 7 */ "Reserved for future standardization", /* 8 */ "Reserved for future standardization", /* 9 */ "Reserved for future standardization", /* A */ "Reserved for future standardization", /* B */ "Tardy retry limit exceeded", /* C */ "Conflict error", /* D */ "Data error", /* E */ "Type error", /* F */ "Address error" }; static void sbp_identify(driver_t *driver, device_t parent) { device_t child; SBP_DEBUG(0) printf("sbp_identify\n"); END_DEBUG child = BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent)); } /* * sbp_probe() */ static int sbp_probe(device_t dev) { device_t pa; SBP_DEBUG(0) printf("sbp_probe\n"); END_DEBUG pa = device_get_parent(dev); if(device_get_unit(dev) != device_get_unit(pa)){ return(ENXIO); } device_set_desc(dev, "SBP2/SCSI over firewire"); return (0); } static void sbp_show_sdev_info(struct sbp_dev *sdev, int new) { int lun; struct fw_device *fwdev; printf("%s:%d:%d ", device_get_nameunit(sdev->target->sbp->fd.dev), sdev->target->target_id, sdev->lun_id ); if (new == 2) { return; } fwdev = sdev->target->fwdev; lun = getcsrdata(fwdev, 0x14); printf("ordered:%d type:%d EUI:%08x%08x node:%d " "speed:%d maxrec:%d", (lun & 0x00400000) >> 22, (lun & 0x001f0000) >> 16, fwdev->eui.hi, fwdev->eui.lo, fwdev->dst, fwdev->speed, fwdev->maxrec ); if (new) printf(" new!\n"); else printf("\n"); sbp_show_sdev_info(sdev, 2); printf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision); } static struct sbp_target * sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev) { int i, lun; struct sbp_target *target; struct sbp_dev *sdev; SBP_DEBUG(1) printf("sbp_alloc_target\n"); END_DEBUG for (i = 0; i < SBP_NUM_TARGETS; i++) if(sbp->targets[i].fwdev == NULL) break; if (i == SBP_NUM_TARGETS) { printf("increase SBP_NUM_TARGETS!\n"); return NULL; } /* new target */ target = &sbp->targets[i]; target->sbp = sbp; target->fwdev = fwdev; target->target_id = i; if((target->mgm_lo = getcsrdata(fwdev, 0x54)) == 0 ){ /* bad target */ printf("NULL management address\n"); target->fwdev = NULL; return NULL; } target->mgm_hi = 0xffff; target->mgm_lo = 0xf0000000 | target->mgm_lo << 2; /* XXX should probe all luns */ /* XXX num_lun may be changed. realloc luns? */ lun = getcsrdata(target->fwdev, 0x14) & 0xff; target->num_lun = lun + 1; target->luns = (struct sbp_dev *) malloc( sizeof(struct sbp_dev) * target->num_lun, M_SBP, M_NOWAIT | M_ZERO); for (i = 0; i < target->num_lun; i++) { sdev = &target->luns[i]; sdev->lun_id = i; sdev->target = target; STAILQ_INIT(&sdev->ocbs); if (i == lun) sdev->status = SBP_DEV_RESET; else sdev->status = SBP_DEV_DEAD; } return target; } static void sbp_get_text_leaf(struct fw_device *fwdev, int key, char *buf, int len) { static char *nullstr = "(null)"; int i, clen, found=0; struct csrhdr *chdr; struct csrreg *creg; u_int32_t *src, *dst; chdr = (struct csrhdr *)&fwdev->csrrom[0]; creg = (struct csrreg *)chdr; creg += chdr->info_len; for( i = chdr->info_len + 4; i <= fwdev->rommax; i+=4){ if((creg++)->key == key){ found = 1; break; } } if (!found) { strncpy(buf, nullstr, len); return; } src = (u_int32_t *) creg + creg->val; clen = ((*src >> 16) - 2) * 4; src += 3; dst = (u_int32_t *) buf; if (len < clen) clen = len; for (i = 0; i < clen/4; i++) *dst++ = htonl(*src++); buf[clen] = 0; } static void sbp_probe_lun(struct sbp_dev *sdev) { struct fw_device *fwdev; int rev; fwdev = sdev->target->fwdev; bzero(sdev->vendor, sizeof(sdev->vendor)); bzero(sdev->product, sizeof(sdev->product)); sbp_get_text_leaf(fwdev, 0x03, sdev->vendor, sizeof(sdev->vendor)); sbp_get_text_leaf(fwdev, 0x17, sdev->product, sizeof(sdev->product)); rev = getcsrdata(sdev->target->fwdev, 0x3c); snprintf(sdev->revision, sizeof(sdev->revision), "%06x", rev); } static void sbp_probe_target(struct sbp_target *target, int alive) { struct sbp_softc *sbp; struct sbp_dev *sdev; struct firewire_comm *fc; int i; SBP_DEBUG(1) printf("sbp_probe_target %d\n", target->target_id); if (!alive) printf("not alive\n"); END_DEBUG sbp = target->sbp; fc = target->sbp->fd.fc; for (i=0; i < target->num_lun; i++) { sdev = &target->luns[i]; if (alive && (sdev->status != SBP_DEV_DEAD)) { if (sdev->path != NULL) { xpt_freeze_devq(sdev->path, 1); } sbp_abort_all_ocbs(sdev, CAM_REQUEUE_REQ); switch (sdev->status) { case SBP_DEV_ATTACHED: sbp_mgm_orb(sdev, ORB_FUN_RCN); break; case SBP_DEV_RETRY: sbp_probe_lun(sdev); sbp_mgm_orb(sdev, ORB_FUN_LGI); break; default: /* new or revived target */ sbp_probe_lun(sdev); if (auto_login) { sdev->status = SBP_DEV_TOATTACH; sbp_mgm_orb(sdev, ORB_FUN_LGI); } break; } sbp_show_sdev_info(sdev, (sdev->status == SBP_DEV_TOATTACH)); } else { switch (sdev->status) { case SBP_DEV_ATTACHED: SBP_DEBUG(0) /* the device has gone */ sbp_show_sdev_info(sdev, 2); printf("lost target\n"); END_DEBUG if (sdev->path) xpt_freeze_devq(sdev->path, 1); sdev->status = SBP_DEV_RETRY; sbp_abort_all_ocbs(sdev, CAM_REQUEUE_REQ); 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; } } } } #if 0 static void sbp_release_queue(void *arg) { struct sbp_softc *sbp; SBP_DEBUG(0) printf("sbp_release_queue\n"); END_DEBUG sbp = (struct sbp_softc *)arg; xpt_release_simq(sbp->sim, 1); } static void sbp_release_devq(void *arg) { struct sbp_dev *sdev; int s; sdev = (struct sbp_dev *)arg; SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("sbp_release_devq\n"); END_DEBUG s = splcam(); xpt_release_devq(sdev->path, 1, TRUE); splx(s); } #endif 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(1) printf("sbp_post_explore\n"); END_DEBUG #if 0 xpt_freeze_simq(sbp->sim, /*count*/ 1); #endif /* Gabage Collection */ for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ target = &sbp->targets[i]; for( fwdev = TAILQ_FIRST(&sbp->fd.fc->devices); fwdev != NULL; fwdev = TAILQ_NEXT(fwdev, link)){ if(target->fwdev == NULL) break; if(target->fwdev == fwdev) break; } if(fwdev == NULL){ /* device has removed in lower driver */ sbp_detach_target(target); } } /* traverse device list */ for( fwdev = TAILQ_FIRST(&sbp->fd.fc->devices); fwdev != NULL; fwdev = TAILQ_NEXT(fwdev, link)){ SBP_DEBUG(0) printf("sbp_post_explore: EUI:%08x%08x ", fwdev->eui.hi, fwdev->eui.lo); if (fwdev->status == FWDEVATTACHED) { printf("spec=%d key=%d.\n", getcsrdata(fwdev, CSRKEY_SPEC) == CSRVAL_ANSIT10, getcsrdata(fwdev, CSRKEY_VER) == CSRVAL_T10SBP2); } else { printf("not attached, state=%d.\n", fwdev->status); } END_DEBUG alive = (fwdev->status == FWDEVATTACHED) && (getcsrdata(fwdev, CSRKEY_SPEC) == CSRVAL_ANSIT10) && (getcsrdata(fwdev, CSRKEY_VER) == CSRVAL_T10SBP2); for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){ target = &sbp->targets[i]; if(target->fwdev == fwdev ) { /* known target */ break; } } if(i == SBP_NUM_TARGETS){ if (alive) { /* new target */ target = sbp_alloc_target(sbp, fwdev); if (target == NULL) continue; } else { continue; } } sbp_probe_target(target, alive); } #if 0 timeout(sbp_release_queue, (caddr_t)sbp, bus_reset_rest * hz / 1000); #endif } #if NEED_RESPONSE static void sbp_loginres_callback(struct fw_xfer *xfer){ SBP_DEBUG(1) struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; sbp_show_sdev_info(sdev, 2); printf("sbp_loginres_callback\n"); END_DEBUG fw_xfer_free(xfer); return; } #endif static void sbp_login_callback(struct fw_xfer *xfer) { SBP_DEBUG(1) struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; sbp_show_sdev_info(sdev, 2); printf("sbp_login_callback\n"); END_DEBUG fw_xfer_free(xfer); return; } static void sbp_cmd_callback(struct fw_xfer *xfer) { SBP_DEBUG(2) struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; sbp_show_sdev_info(sdev, 2); printf("sbp_cmd_callback\n"); END_DEBUG fw_xfer_free(xfer); return; } static void sbp_cam_callback(struct cam_periph *periph, union ccb *ccb) { struct sbp_dev *sdev; sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; SBP_DEBUG(1) sbp_show_sdev_info(sdev, 2); printf("sbp_cam_callback\n"); END_DEBUG sdev->status = SBP_DEV_ATTACHED; free(ccb, M_SBP); } static void sbp_cam_scan_lun(struct sbp_dev *sdev) { union ccb *ccb = malloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO); SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("sbp_cam_scan_lun\n"); END_DEBUG xpt_setup_ccb(&ccb->ccb_h, sdev->path, 5/*priority (low)*/); ccb->ccb_h.func_code = XPT_SCAN_LUN; ccb->ccb_h.cbfcnp = sbp_cam_callback; ccb->crcn.flags = CAM_FLAG_NONE; ccb->ccb_h.ccb_sdev_ptr = sdev; xpt_action(ccb); /* The scan is in progress now. */ } static void sbp_ping_unit_callback(struct cam_periph *periph, union ccb *ccb) { struct sbp_dev *sdev; sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr; SBP_DEBUG(1) sbp_show_sdev_info(sdev, 2); printf("sbp_ping_unit_callback\n"); END_DEBUG if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { if (--ccb->ccb_h.retry_count == 0) { sbp_show_sdev_info(sdev, 2); printf("sbp_tur_callback: retry count exceeded\n"); sdev->status = SBP_DEV_RETRY; free(ccb, M_SBP); } else { /* requeue */ xpt_action(ccb); xpt_release_devq(sdev->path, 1, TRUE); } } else { free(ccb->csio.data_ptr, M_SBP); free(ccb, M_SBP); sdev->status = SBP_DEV_ATTACHED; xpt_release_devq(sdev->path, 1, TRUE); } } /* * XXX Some devices need to execute inquiry or read_capacity * after bus_rest during busy transfer. * Otherwise they return incorrect result for READ(and WRITE?) * command without any SBP-II/SCSI error. * * e.g. Maxtor 3000XT, Yano A-dish. */ static void sbp_ping_unit(struct sbp_dev *sdev) { union ccb *ccb; struct scsi_inquiry_data *inq_buf; ccb = malloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO); inq_buf = (struct scsi_inquiry_data *) malloc(sizeof(*inq_buf), M_SBP, M_WAITOK); SBP_DEBUG(1) sbp_show_sdev_info(sdev, 2); printf("sbp_ping_unit\n"); END_DEBUG /* * We need to execute this command before any other queued command. * Make priority 0 and freeze queue after execution for retry. * cam's scan_lun command doesn't provide this feature. */ xpt_setup_ccb(&ccb->ccb_h, sdev->path, 0/*priority (high)*/); scsi_inquiry( &ccb->csio, /*retries*/ 5, sbp_ping_unit_callback, MSG_SIMPLE_Q_TAG, (u_int8_t *)inq_buf, SHORT_INQUIRY_LENGTH, /*evpd*/FALSE, /*page_code*/0, SSD_MIN_SIZE, /*timeout*/60000 ); ccb->ccb_h.flags |= CAM_DEV_QFREEZE; xpt_action(ccb); } static void sbp_do_attach(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("sbp_do_attach\n"); END_DEBUG fw_xfer_free(xfer); if (sdev->path == NULL) xpt_create_path(&sdev->path, xpt_periph, cam_sim_path(sdev->target->sbp->sim), sdev->target->target_id, sdev->lun_id); if (sdev->status == SBP_DEV_RETRY) { sdev->status = SBP_DEV_PROBE; sbp_ping_unit(sdev); /* freezed twice */ xpt_release_devq(sdev->path, 1, TRUE); } else { sdev->status = SBP_DEV_PROBE; sbp_cam_scan_lun(sdev); } xpt_release_devq(sdev->path, 1, TRUE); return; } static void sbp_agent_reset_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) sbp_show_sdev_info(sdev, 2); printf("sbp_cmd_callback\n"); END_DEBUG fw_xfer_free(xfer); sbp_abort_all_ocbs(sdev, CAM_REQUEUE_REQ); if (sdev->path) xpt_release_devq(sdev->path, 1, TRUE); } static void sbp_agent_reset(struct sbp_dev *sdev, int attach) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("sbp_agent_reset\n"); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04); if (xfer == NULL) return; if (attach) xfer->act.hand = sbp_do_attach; else xfer->act.hand = sbp_agent_reset_callback; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqq.data = htonl(0xf); fw_asyreq(xfer->fc, -1, xfer); } static void sbp_busy_timeout_callback(struct fw_xfer *xfer) { struct sbp_dev *sdev; sdev = (struct sbp_dev *)xfer->sc; SBP_DEBUG(1) sbp_show_sdev_info(sdev, 2); printf("sbp_but_timeout_callback\n"); END_DEBUG fw_xfer_free(xfer); sbp_agent_reset(sdev, 1); } static void sbp_busy_timeout(struct sbp_dev *sdev) { struct fw_pkt *fp; struct fw_xfer *xfer; SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("sbp_busy_timeout\n"); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); xfer->act.hand = sbp_busy_timeout_callback; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqq.dest_hi = htons(0xffff); fp->mode.wreqq.dest_lo = htonl(0xf0000000 | BUS_TIME); fp->mode.wreqq.data = htonl(0xf); fw_asyreq(xfer->fc, -1, xfer); } #if 0 static void sbp_reset_start(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("sbp_reset_start\n"); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0); xfer->act.hand = sbp_busy_timeout; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqq.dest_hi = htons(0xffff); fp->mode.wreqq.dest_lo = htonl(0xf0000000 | RESET_START); fp->mode.wreqq.data = htonl(0xf); fw_asyreq(xfer->fc, -1, xfer); } #endif static void sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(2) sbp_show_sdev_info(sdev, 2); printf("sbp_orb_pointer\n"); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08); if (xfer == NULL) return; xfer->act.hand = sbp_cmd_callback; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqb.len = htons(8); fp->mode.wreqb.extcode = 0; fp->mode.wreqb.payload[0] = htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); fp->mode.wreqb.payload[1] = htonl(vtophys(&ocb->orb[0])); if(fw_asyreq(xfer->fc, -1, xfer) != 0){ fw_xfer_free(xfer); ocb->ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ocb->ccb); } } static void sbp_doorbell(struct sbp_dev *sdev) { struct fw_xfer *xfer; struct fw_pkt *fp; SBP_DEBUG(1) sbp_show_sdev_info(sdev, 2); printf("sbp_doorbell\n"); END_DEBUG xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10); if (xfer == NULL) return; xfer->act.hand = sbp_cmd_callback; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqq.data = htonl(0xf); fw_asyreq(xfer->fc, -1, xfer); } static struct fw_xfer * sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset) { struct fw_xfer *xfer; struct fw_pkt *fp; xfer = fw_xfer_alloc(); if(xfer == NULL){ return NULL; } if (tcode == FWTCODE_WREQQ) xfer->send.len = 16; else xfer->send.len = 24; xfer->send.buf = malloc(xfer->send.len, M_DEVBUF, M_NOWAIT); if(xfer->send.buf == NULL){ fw_xfer_free( xfer); return NULL; } xfer->send.off = 0; xfer->spd = min(sdev->target->fwdev->speed, max_speed); xfer->sc = (caddr_t)sdev; xfer->fc = sdev->target->sbp->fd.fc; xfer->retry_req = fw_asybusy; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqq.dest_hi = htons(sdev->login.cmd_hi); fp->mode.wreqq.dest_lo = htonl(sdev->login.cmd_lo + offset); fp->mode.wreqq.tlrt = 0; fp->mode.wreqq.tcode = tcode; fp->mode.wreqq.pri = 0; xfer->dst = FWLOCALBUS | sdev->target->fwdev->dst; fp->mode.wreqq.dst = htons(xfer->dst); return xfer; } static void sbp_mgm_orb(struct sbp_dev *sdev, int func) { struct fw_xfer *xfer; struct fw_pkt *fp; struct sbp_ocb *ocb; int s, nid; if ((ocb = sbp_get_ocb(sdev->target->sbp)) == NULL) { s = splfw(); sdev->target->sbp->flags |= SBP_RESOURCE_SHORTAGE; splx(s); return; } ocb->flags = OCB_ACT_MGM; ocb->sdev = sdev; ocb->ccb = NULL; nid = sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS; bzero((void *)(uintptr_t)(volatile void *)ocb->orb, sizeof(ocb->orb)); ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI); ocb->orb[7] = htonl(SBP_DEV2ADDR( device_get_unit(sdev->target->sbp->fd.dev), sdev->target->target_id, sdev->lun_id)); sbp_show_sdev_info(sdev, 2); printf("%s\n", orb_fun_name[(func>>16)&0xf]); switch (func) { case ORB_FUN_LGI: ocb->orb[2] = htonl(nid << 16); ocb->orb[3] = htonl(vtophys(&sdev->login)); ocb->orb[4] = htonl(ORB_NOTIFY | ORB_EXV | sdev->lun_id); ocb->orb[5] = htonl(sizeof(struct sbp_login_res)); break; case ORB_FUN_RCN: case ORB_FUN_LGO: case ORB_FUN_LUR: case ORB_FUN_RST: case ORB_FUN_ATA: case ORB_FUN_ATS: ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login.id); break; } xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0); if(xfer == NULL){ return; } xfer->act.hand = sbp_login_callback; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqb.dest_hi = htons(sdev->target->mgm_hi); fp->mode.wreqb.dest_lo = htonl(sdev->target->mgm_lo); fp->mode.wreqb.len = htons(8); fp->mode.wreqb.extcode = 0; fp->mode.wreqb.payload[0] = htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16)); fp->mode.wreqb.payload[1] = htonl(vtophys(&ocb->orb[0])); sbp_enqueue_ocb(sdev, ocb); fw_asyreq(xfer->fc, -1, xfer); } 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; struct ccb_scsiio *csio; sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data; sense = &ocb->ccb->csio.sense_data; SBP_DEBUG(0) csio = &ocb->ccb->csio; printf("%s:%d:%d XPT_SCSI_IO: " "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" ", flags: 0x%02x, " "%db cmd/%db data/%db sense\n", device_get_nameunit(ocb->sdev->target->sbp->fd.dev), ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun, csio->cdb_io.cdb_bytes[0], csio->cdb_io.cdb_bytes[1], csio->cdb_io.cdb_bytes[2], csio->cdb_io.cdb_bytes[3], csio->cdb_io.cdb_bytes[4], csio->cdb_io.cdb_bytes[5], csio->cdb_io.cdb_bytes[6], csio->cdb_io.cdb_bytes[7], csio->cdb_io.cdb_bytes[8], csio->cdb_io.cdb_bytes[9], ocb->ccb->ccb_h.flags & CAM_DIR_MASK, csio->cdb_len, csio->dxfer_len, csio->sense_len); /* XXX need decode status */ sbp_show_sdev_info(ocb->sdev, 2); printf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d", sbp_cmd_status->status, sbp_cmd_status->sfmt, sbp_cmd_status->valid, sbp_cmd_status->s_key, sbp_cmd_status->s_code, sbp_cmd_status->s_qlfr, sbp_status->len ); #if 0 /* XXX */ if (sbp_cmd_status->status == SCSI_STATUS_CHECK_COND) { printf(" %s\n", scsi_sense_key_text[sbp_cmd_status->s_key]); scsi_sense_desc( sbp_cmd_status->s_code, sbp_cmd_status->s_qlfr, ocb->ccb->ccb_h.path->device->inq_data ) } else { printf("\n"); } #else printf("\n"); #endif END_DEBUG if(sbp_cmd_status->status == SCSI_STATUS_CHECK_COND || sbp_cmd_status->status == SCSI_STATUS_CMD_TERMINATED){ if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){ sense->error_code = SSD_CURRENT_ERROR; }else{ sense->error_code = SSD_DEFERRED_ERROR; } if(sbp_cmd_status->valid) sense->error_code |= SSD_ERRCODE_VALID; sense->flags = sbp_cmd_status->s_key; if(sbp_cmd_status->mark) sense->flags |= SSD_FILEMARK; if(sbp_cmd_status->eom) sense->flags |= SSD_EOM; if(sbp_cmd_status->ill_len) sense->flags |= SSD_ILI; sense->info[0] = ntohl(sbp_cmd_status->info) & 0xff; sense->info[1] =(ntohl(sbp_cmd_status->info) >> 8) & 0xff; sense->info[2] =(ntohl(sbp_cmd_status->info) >> 16) & 0xff; sense->info[3] =(ntohl(sbp_cmd_status->info) >> 24) & 0xff; if (sbp_status->len <= 1) /* XXX not scsi status. shouldn't be happened */ sense->extra_len = 0; else if (sbp_status->len <= 4) /* add_sense_code(_qual), info, cmd_spec_info */ sense->extra_len = 6; else /* fru, sense_key_spec */ sense->extra_len = 10; sense->cmd_spec_info[0] = ntohl(sbp_cmd_status->cdb) & 0xff; sense->cmd_spec_info[1] = (ntohl(sbp_cmd_status->cdb) >> 8) & 0xff; sense->cmd_spec_info[2] = (ntohl(sbp_cmd_status->cdb) >> 16) & 0xff; sense->cmd_spec_info[3] = (ntohl(sbp_cmd_status->cdb) >> 24) & 0xff; sense->add_sense_code = sbp_cmd_status->s_code; sense->add_sense_code_qual = sbp_cmd_status->s_qlfr; sense->fru = sbp_cmd_status->fru; sense->sense_key_spec[0] = ntohl(sbp_cmd_status->s_keydep) & 0xff; sense->sense_key_spec[1] = (ntohl(sbp_cmd_status->s_keydep) >>8) & 0xff; sense->sense_key_spec[2] = (ntohl(sbp_cmd_status->s_keydep) >>16) & 0xff; ocb->ccb->csio.scsi_status = sbp_cmd_status->status;; ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID; /* { u_int8_t j, *tmp; tmp = sense; for( j = 0 ; j < 32 ; j+=8){ printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n", tmp[j], tmp[j+1], tmp[j+2], tmp[j+3], tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]); } } */ } else { printf("sbp_scsi_status: unknown scsi status\n"); } } static void sbp_fix_inq_data(struct sbp_ocb *ocb) { union ccb *ccb; struct sbp_dev *sdev; struct scsi_inquiry_data *inq; ccb = ocb->ccb; sdev = ocb->sdev; if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD) return; SBP_DEBUG(1) sbp_show_sdev_info(sdev, 2); printf("sbp_fix_inq_data\n"); END_DEBUG inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr; switch (SID_TYPE(inq)) { case T_DIRECT: /* * XXX Convert Direct Access device to RBC. * I've never seen Firewire DA devices which support READ_6. */ #if 1 if (SID_TYPE(inq) == T_DIRECT) inq->device |= T_RBC; /* T_DIRECT == 0 */ #endif /* fall through */ case T_RBC: /* disable tag queuing */ inq->flags &= ~SID_CmdQue; /* * Override vendor/product/revision information. * Some devices sometimes return strange strings. */ 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)); break; } } static void sbp_recv1(struct fw_xfer *xfer){ struct fw_pkt *rfp; #if NEED_RESPONSE struct fw_pkt *sfp; #endif struct sbp_softc *sbp; struct sbp_dev *sdev; struct sbp_ocb *ocb; struct sbp_login_res *login_res = NULL; struct sbp_status *sbp_status; struct sbp_target *target; int orb_fun, status_valid; u_int32_t addr; /* u_int32_t *ld; ld = xfer->recv.buf; printf("sbp %x %d %d %08x %08x %08x %08x\n", xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11])); */ if(xfer->resp != 0){ printf("sbp_recv: xfer->resp != 0\n"); fw_xfer_free( xfer); return; } if(xfer->recv.buf == NULL){ printf("sbp_recv: xfer->recv.buf == NULL\n"); fw_xfer_free( xfer); return; } sbp = (struct sbp_softc *)xfer->sc; rfp = (struct fw_pkt *)xfer->recv.buf; if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){ printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode); fw_xfer_free( xfer); return; } sbp_status = (struct sbp_status *)rfp->mode.wreqb.payload; addr = ntohl(rfp->mode.wreqb.dest_lo); SBP_DEBUG(2) printf("received address 0x%x\n", addr); END_DEBUG target = &sbp->targets[SBP_ADDR2TRG(addr)]; sdev = &target->luns[SBP_ADDR2LUN(addr)]; status_valid = (sbp_status->resp == ORB_RES_CMPL && sbp_status->dead == 0 && sbp_status->status == 0); SBP_DEBUG(0) if (!status_valid || debug > 1){ int status; sbp_show_sdev_info(sdev, 2); printf("ORB status src:%x resp:%x dead:%x" " len:%x stat:%x orb:%x%08x\n", sbp_status->src, sbp_status->resp, sbp_status->dead, sbp_status->len, sbp_status->status, ntohl(sbp_status->orb_hi), ntohl(sbp_status->orb_lo)); sbp_show_sdev_info(sdev, 2); status = sbp_status->status; switch(sbp_status->resp) { case 0: if (status > MAX_ORB_STATUS0) printf("%s\n", orb_status0[MAX_ORB_STATUS0]); else printf("%s\n", orb_status0[status]); break; case 1: printf("Object: %s, Serial Bus Error: %s\n", orb_status1_object[(status>>6) & 3], orb_status1_serial_bus_error[status & 0xf]); break; default: printf("unknown respose code\n"); } } END_DEBUG ocb = sbp_dequeue_ocb(sdev, ntohl(sbp_status->orb_lo)); /* we have to reset the fetch agent if it's dead */ if (sbp_status->dead) { if (sdev->path) xpt_freeze_devq(sdev->path, 1); sbp_agent_reset(sdev, 0); } if (ocb == NULL) { printf("No ocb on the queue for target %d.\n", sdev->target->target_id); fw_xfer_free( xfer); return; } 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 & OCB_ACT_MASK){ case OCB_ACT_MGM: orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK; switch(orb_fun) { case ORB_FUN_LGI: login_res = &sdev->login; login_res->len = ntohs(login_res->len); login_res->id = ntohs(login_res->id); login_res->cmd_hi = ntohs(login_res->cmd_hi); login_res->cmd_lo = ntohl(login_res->cmd_lo); if (status_valid) { SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo, ntohs(login_res->recon_hold)); END_DEBUG #if 1 sbp_busy_timeout(sdev); #else sbp_mgm_orb(sdev, ORB_FUN_ATS); #endif } else { /* forgot logout ? */ printf("login failed\n"); sdev->status = SBP_DEV_RESET; } break; case ORB_FUN_RCN: login_res = &sdev->login; if (status_valid) { sdev->status = SBP_DEV_ATTACHED; SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo); END_DEBUG #if 1 sbp_ping_unit(sdev); xpt_release_devq(sdev->path, 1, TRUE); #else sbp_mgm_orb(sdev, ORB_FUN_ATS); #endif } else { /* reconnection hold time exceed? */ printf("reconnect failed\n"); sbp_mgm_orb(sdev, ORB_FUN_LGI); } break; case ORB_FUN_LGO: sdev->status = SBP_DEV_RESET; break; case ORB_FUN_LUR: case ORB_FUN_RST: case ORB_FUN_ATA: case ORB_FUN_ATS: if (sdev->status == SBP_DEV_ATTACHED) { xpt_release_devq(sdev->path, 1, TRUE); } else { sbp_busy_timeout(sdev); } break; default: break; } break; case OCB_ACT_CMD: if(ocb->ccb != NULL){ union ccb *ccb; /* u_int32_t *ld; ld = ocb->ccb->csio.data_ptr; if(ld != NULL && ocb->ccb->csio.dxfer_len != 0) printf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]); else printf("ptr NULL\n"); printf("len %d\n", sbp_status->len); */ ccb = ocb->ccb; if(sbp_status->len > 1){ sbp_scsi_status(sbp_status, ocb); }else{ if(sbp_status->resp != ORB_RES_CMPL){ ccb->ccb_h.status = CAM_REQ_CMP_ERR; }else{ ccb->ccb_h.status = CAM_REQ_CMP; } } /* fix up inq data */ if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY) sbp_fix_inq_data(ocb); xpt_done(ccb); } break; default: break; } } if (!(ocb->flags & OCB_RESERVED)) sbp_free_ocb(sbp, ocb); /* The received packet is usually small enough to be stored within * the buffer. In that case, the controller return ack_complete and * no respose is necessary. * * XXX fwohci.c and firewire.c should inform event_code such as * ack_complete or ack_pending to upper driver. */ #if NEED_RESPONSE xfer->send.buf = malloc(12, M_SBP, M_NOWAIT | M_ZERO); xfer->send.len = 12; xfer->send.off = 0; sfp = (struct fw_pkt *)xfer->send.buf; sfp->mode.wres.dst = rfp->mode.wreqb.src; xfer->dst = ntohs(sfp->mode.wres.dst); xfer->spd = min(sdev->target->fwdev->speed, max_speed); xfer->act.hand = sbp_loginres_callback; xfer->retry_req = fw_asybusy; sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt; sfp->mode.wres.tcode = FWTCODE_WRES; sfp->mode.wres.rtcode = 0; sfp->mode.wres.pri = 0; fw_asyreq(xfer->fc, -1, xfer); #else fw_xfer_free(xfer); #endif return; } static void sbp_recv(struct fw_xfer *xfer) { int s; s = splcam(); sbp_recv1(xfer); splx(s); } /* * sbp_attach() */ static int sbp_attach(device_t dev) { struct sbp_softc *sbp; struct cam_devq *devq; struct fw_xfer *xfer; int i, s, error; SBP_DEBUG(0) printf("sbp_attach\n"); END_DEBUG sbp = ((struct sbp_softc *)device_get_softc(dev)); bzero(sbp, sizeof(struct sbp_softc)); sbp->fd.dev = dev; sbp->fd.fc = device_get_ivars(dev); error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX, /*maxsegsz*/0x8000, /*flags*/BUS_DMA_ALLOCNOW, &sbp->dmat); if (error != 0) { printf("sbp_attach: Could not allocate DMA tag " "- error %d\n", error); return (ENOMEM); } devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB); if (devq == NULL) return (ENXIO); for( i = 0 ; i < SBP_NUM_TARGETS ; i++){ sbp->targets[i].fwdev = NULL; sbp->targets[i].luns = NULL; } sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp, device_get_unit(dev), /*untagged*/ SBP_QUEUE_LEN, /*tagged*/0, devq); if (sbp->sim == NULL) { cam_simq_free(devq); return (ENXIO); } sbp->ocb = (struct sbp_ocb *) contigmalloc( sizeof (struct sbp_ocb) * SBP_NUM_OCB, M_SBP, M_DONTWAIT, 0x10000, 0xffffffff, PAGE_SIZE, 0ul); bzero(sbp->ocb, sizeof (struct sbp_ocb) * SBP_NUM_OCB); if (sbp->ocb == NULL) { printf("sbp0: ocb alloction failure\n"); return (ENOMEM); } STAILQ_INIT(&sbp->free_ocbs); for (i = 0; i < SBP_NUM_OCB; i++) { sbp_free_ocb(sbp, &sbp->ocb[i]); } if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS) { cam_sim_free(sbp->sim, /*free_devq*/TRUE); contigfree(sbp->ocb, sizeof (struct sbp_ocb) * SBP_NUM_OCB, M_SBP); return (ENXIO); } xfer = fw_xfer_alloc(); xfer->act.hand = sbp_recv; xfer->act_type = FWACT_XFER; #if NEED_RESPONSE xfer->fc = sbp->fd.fc; #endif xfer->sc = (caddr_t)sbp; sbp->fwb.start_hi = SBP_BIND_HI; sbp->fwb.start_lo = SBP_DEV2ADDR(device_get_unit(sbp->fd.dev), 0, 0); /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */ sbp->fwb.addrlen = 0xffff; sbp->fwb.xfer = xfer; fw_bindadd(sbp->fd.fc, &sbp->fwb); sbp->fd.post_explore = sbp_post_explore; s = splfw(); sbp_post_explore((void *)sbp); splx(s); return (0); } static int sbp_detach(device_t dev) { struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev)); struct firewire_comm *fc = sbp->fd.fc; int i; SBP_DEBUG(0) printf("sbp_detach\n"); END_DEBUG /* bus reset for logout */ sbp->fd.post_explore = NULL; fc->ibr(fc); contigfree(sbp->ocb, sizeof (struct sbp_ocb) * SBP_NUM_OCB, M_SBP); fw_bindremove(fc, &sbp->fwb); for (i = 0; i < SBP_NUM_TARGETS; i ++) sbp_detach_target(&sbp->targets[i]); xpt_bus_deregister(cam_sim_path(sbp->sim)); bus_dma_tag_destroy(sbp->dmat); return (0); } static void sbp_detach_target(struct sbp_target *target) { int i; struct sbp_dev *sdev; if (target->luns != NULL) { printf("sbp_detach_target %d\n", target->target_id); for (i=0; i < target->num_lun; i++) { sdev = &target->luns[i]; if (sdev->status == SBP_DEV_RESET || sdev->status == SBP_DEV_DEAD) continue; if (sdev->path) xpt_async(AC_LOST_DEVICE, sdev->path, NULL); xpt_free_path(sdev->path); sdev->path = NULL; sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE); } free(target->luns, M_SBP); target->luns = NULL; } target->fwdev = NULL; } static void sbp_timeout(void *arg) { struct sbp_ocb *ocb = (struct sbp_ocb *)arg; struct sbp_dev *sdev = ocb->sdev; int s; sbp_show_sdev_info(sdev, 2); printf("request timeout ... requeue\n"); /* XXX need reset? */ s = splfw(); #if 1 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT); #else sbp_abort_ocb(ocb, CAM_CMD_TIMEOUT); #endif splx(s); return; } static void sbp_action1(struct cam_sim *sim, union ccb *ccb) { struct sbp_softc *sbp = (struct sbp_softc *)sim->softc; struct sbp_target *target = NULL; struct sbp_dev *sdev = NULL; /* target:lun -> sdev mapping */ if (sbp != NULL && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD && ccb->ccb_h.target_id < SBP_NUM_TARGETS) { target = &sbp->targets[ccb->ccb_h.target_id]; if (target->fwdev != NULL && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD && ccb->ccb_h.target_lun < target->num_lun) { sdev = &target->luns[ccb->ccb_h.target_lun]; if (sdev->status != SBP_DEV_ATTACHED && sdev->status != SBP_DEV_PROBE) sdev = NULL; } } SBP_DEBUG(1) if (sdev == NULL) printf("invalid target %d lun %d\n", ccb->ccb_h.target_id, ccb->ccb_h.target_lun); END_DEBUG switch (ccb->ccb_h.func_code) { case XPT_SCSI_IO: case XPT_RESET_DEV: case XPT_GET_TRAN_SETTINGS: case XPT_SET_TRAN_SETTINGS: case XPT_CALC_GEOMETRY: if (sdev == NULL) { SBP_DEBUG(1) printf("%s:%d:%d:func_code 0x%04x: " "Invalid target (target needed)\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, ccb->ccb_h.target_lun, ccb->ccb_h.func_code); END_DEBUG ccb->ccb_h.status = CAM_TID_INVALID; xpt_done(ccb); return; } break; case XPT_PATH_INQ: case XPT_NOOP: /* The opcodes sometimes aimed at a target (sc is valid), * sometimes aimed at the SIM (sc is invalid and target is * CAM_TARGET_WILDCARD) */ if (sbp == NULL && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) { SBP_DEBUG(0) printf("%s:%d:%d func_code 0x%04x: " "Invalid target (no wildcard)\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, ccb->ccb_h.target_lun, ccb->ccb_h.func_code); END_DEBUG ccb->ccb_h.status = CAM_TID_INVALID; xpt_done(ccb); return; } break; default: /* XXX Hm, we should check the input parameters */ break; } switch (ccb->ccb_h.func_code) { case XPT_SCSI_IO: { struct ccb_scsiio *csio; struct sbp_ocb *ocb; int s, speed; csio = &ccb->csio; SBP_DEBUG(1) printf("%s:%d:%d XPT_SCSI_IO: " "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x" ", flags: 0x%02x, " "%db cmd/%db data/%db sense\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, ccb->ccb_h.target_lun, csio->cdb_io.cdb_bytes[0], csio->cdb_io.cdb_bytes[1], csio->cdb_io.cdb_bytes[2], csio->cdb_io.cdb_bytes[3], csio->cdb_io.cdb_bytes[4], csio->cdb_io.cdb_bytes[5], csio->cdb_io.cdb_bytes[6], csio->cdb_io.cdb_bytes[7], csio->cdb_io.cdb_bytes[8], csio->cdb_io.cdb_bytes[9], ccb->ccb_h.flags & CAM_DIR_MASK, csio->cdb_len, csio->dxfer_len, csio->sense_len); END_DEBUG if(sdev == NULL){ ccb->ccb_h.status = CAM_DEV_NOT_THERE; xpt_done(ccb); return; } #if 0 /* if we are in probe stage, pass only probe commands */ if (sdev->status == SBP_DEV_PROBE) { char *name; name = xpt_path_periph(ccb->ccb_h.path)->periph_name; printf("probe stage, periph name: %s\n", name); if (strcmp(name, "probe") != 0) { ccb->ccb_h.status = CAM_REQUEUE_REQ; xpt_done(ccb); return; } } #endif if ((ocb = sbp_get_ocb(sbp)) == NULL) { s = splfw(); sbp->flags |= SBP_RESOURCE_SHORTAGE; splx(s); return; } ocb->flags = OCB_ACT_CMD; ocb->sdev = sdev; ocb->ccb = ccb; ccb->ccb_h.ccb_sdev_ptr = sdev; ocb->orb[0] = htonl(1 << 31); ocb->orb[1] = 0; ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) ); ocb->orb[3] = htonl(vtophys(ocb->ind_ptr)); speed = min(target->fwdev->speed, max_speed); ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed) | ORB_CMD_MAXP(speed + 7)); if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){ ocb->orb[4] |= htonl(ORB_CMD_IN); } if (csio->ccb_h.flags & CAM_SCATTER_VALID) printf("sbp: CAM_SCATTER_VALID\n"); if (csio->ccb_h.flags & CAM_DATA_PHYS) printf("sbp: CAM_DATA_PHYS\n"); if (csio->ccb_h.flags & CAM_CDB_POINTER) { bcopy(csio->cdb_io.cdb_ptr, (void *)(uintptr_t)(volatile void *)&ocb->orb[5], (csio->cdb_len + 3) & ~0x3); } else { bcopy(&csio->cdb_io.cdb_bytes, (void *)(uintptr_t)(volatile void *)&ocb->orb[5], (csio->cdb_len + 3) &~0x3); } /* printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3])); printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7])); */ if (ccb->csio.dxfer_len > 0) { int s; if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) { printf("sbp_action1: cannot create dmamap\n"); break; } s = splsoftvm(); bus_dmamap_load(/*dma tag*/sbp->dmat, /*dma map*/ocb->dmamap, ccb->csio.data_ptr, ccb->csio.dxfer_len, sbp_execute_ocb, ocb, /*flags*/0); splx(s); } else sbp_execute_ocb(ocb, NULL, 0, 0); break; } case XPT_CALC_GEOMETRY: { struct ccb_calc_geometry *ccg; u_int32_t size_mb; u_int32_t secs_per_cylinder; int extended = 1; ccg = &ccb->ccg; if (ccg->block_size == 0) { printf("sbp_action1: block_size is 0.\n"); ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); break; } SBP_DEBUG(1) printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: " "Volume size = %d\n", device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun, ccg->volume_size); END_DEBUG size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size); if (size_mb >= 1024 && extended) { ccg->heads = 255; ccg->secs_per_track = 63; } else { ccg->heads = 64; ccg->secs_per_track = 32; } secs_per_cylinder = ccg->heads * ccg->secs_per_track; ccg->cylinders = ccg->volume_size / secs_per_cylinder; ccb->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break; } case XPT_RESET_BUS: /* Reset the specified SCSI bus */ { SBP_DEBUG(1) printf("%s:%d:XPT_RESET_BUS: \n", device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim)); END_DEBUG ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); break; } case XPT_PATH_INQ: /* Path routing inquiry */ { struct ccb_pathinq *cpi = &ccb->cpi; SBP_DEBUG(1) printf("%s:%d:%d XPT_PATH_INQ:.\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); END_DEBUG cpi->version_num = 1; /* XXX??? */ cpi->hba_inquiry = 0; cpi->target_sprt = 0; cpi->hba_misc = 0; cpi->hba_eng_cnt = 0; cpi->max_target = SBP_NUM_TARGETS - 1; cpi->max_lun = SBP_NUM_LUNS - 1; cpi->initiator_id = SBP_INITIATOR; cpi->bus_id = sim->bus_id; cpi->base_transfer_speed = 400 * 1000 / 8; strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); strncpy(cpi->hba_vid, "SBP", HBA_IDLEN); strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); cpi->unit_number = sim->unit_number; cpi->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break; } case XPT_GET_TRAN_SETTINGS: { struct ccb_trans_settings *cts = &ccb->cts; SBP_DEBUG(1) printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n", device_get_nameunit(sbp->fd.dev), ccb->ccb_h.target_id, ccb->ccb_h.target_lun); END_DEBUG /* Disable disconnect and tagged queuing */ cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID; cts->flags = 0; 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; default: ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); break; } return; } static void sbp_action(struct cam_sim *sim, union ccb *ccb) { int s; s = splfw(); sbp_action1(sim, ccb); splx(s); } static void sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error) { int i; struct sbp_ocb *ocb; struct sbp_ocb *prev; union ccb *ccb; bus_dma_segment_t *s; if (error) printf("sbp_execute_ocb: error=%d\n", error); ocb = (struct sbp_ocb *)arg; if (seg == 1) { /* direct pointer */ ocb->orb[3] = htonl(segments[0].ds_addr); ocb->orb[4] |= htonl(segments[0].ds_len); } else if(seg > 1) { /* page table */ SBP_DEBUG(1) printf("sbp_execute_ocb: seg %d", seg); for (i = 0; i < seg; i++) printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len); printf("\n"); END_DEBUG for (i = 0; i < seg; i++) { s = &segments[i]; #if 1 /* XXX LSI Logic "< 16 byte" bug might be hit */ if (s->ds_len < 16) printf("sbp_execute_ocb: warning, " "segment length(%d) is less than 16." "(seg=%d/%d)\n", s->ds_len, i+1, seg); #endif ocb->ind_ptr[i].hi = htonl(s->ds_len << 16); ocb->ind_ptr[i].lo = htonl(s->ds_addr); } ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg); } ccb = ocb->ccb; prev = sbp_enqueue_ocb(ocb->sdev, ocb); if (prev) sbp_doorbell(ocb->sdev); else sbp_orb_pointer(ocb->sdev, ocb); } static void sbp_poll(struct cam_sim *sim) { /* should call fwohci_intr? */ return; } static struct sbp_ocb * sbp_dequeue_ocb(struct sbp_dev *sdev, u_int32_t orb_lo) { struct sbp_ocb *ocb; struct sbp_ocb *next; int s = splfw(), order = 0; int flags; for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) { next = STAILQ_NEXT(ocb, ocb); flags = ocb->flags; SBP_DEBUG(1) printf("orb: 0x%x next: 0x%x, flags %x\n", vtophys(&ocb->orb[0]), ntohl(ocb->orb[1]), flags); END_DEBUG if (vtophys(&ocb->orb[0]) == orb_lo) { /* found */ if (ocb->flags & OCB_RESERVED) ocb->flags |= OCB_DONE; else STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); if (ocb->ccb != NULL) untimeout(sbp_timeout, (caddr_t)ocb, ocb->ccb->ccb_h.timeout_ch); if (ocb->dmamap != NULL) { bus_dmamap_destroy(sdev->target->sbp->dmat, ocb->dmamap); ocb->dmamap = NULL; } break; } else { if ((ocb->flags & OCB_RESERVED) && (ocb->flags & OCB_DONE)) { /* next orb must be fetched already */ STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); sbp_free_ocb(sdev->target->sbp, ocb); } else order ++; } } splx(s); SBP_DEBUG(0) if (ocb && order > 0) { sbp_show_sdev_info(sdev, 2); printf("unordered execution order:%d\n", order); } END_DEBUG return (ocb); } static struct sbp_ocb * sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb) { int s = splfw(); struct sbp_ocb *prev; SBP_DEBUG(2) sbp_show_sdev_info(sdev, 2); printf("sbp_enqueue_ocb orb=0x%x in physical memory\n", vtophys(&ocb->orb[0])); END_DEBUG prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb); STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb); if (ocb->ccb != NULL) ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb, (ocb->ccb->ccb_h.timeout * hz) / 1000); if (prev != NULL && ((prev->flags & OCB_ACT_MASK) == OCB_ACT_CMD) && ((ocb->flags & OCB_ACT_MASK) == OCB_ACT_CMD)) { SBP_DEBUG(1) printf("linking chain 0x%x -> 0x%x\n", vtophys(&prev->orb[0]), vtophys(&ocb->orb[0])); END_DEBUG prev->flags |= OCB_RESERVED; prev->orb[1] = htonl(vtophys(&ocb->orb[0])); prev->orb[0] = 0; } else { prev = NULL; } splx(s); return prev; } static struct sbp_ocb * sbp_get_ocb(struct sbp_softc *sbp) { struct sbp_ocb *ocb; int s = splfw(); ocb = STAILQ_FIRST(&sbp->free_ocbs); if (ocb == NULL) { printf("ocb shortage!!!\n"); return NULL; } STAILQ_REMOVE(&sbp->free_ocbs, ocb, sbp_ocb, ocb); splx(s); ocb->ccb = NULL; return (ocb); } static void sbp_free_ocb(struct sbp_softc *sbp, struct sbp_ocb *ocb) { #if 0 /* XXX make sure that ocb has ccb */ if ((sbp->flags & SBP_RESOURCE_SHORTAGE) != 0 && (ocb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { ocb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; sbp->flags &= ~SBP_RESOURCE_SHORTAGE; } #else if ((sbp->flags & SBP_RESOURCE_SHORTAGE) != 0) sbp->flags &= ~SBP_RESOURCE_SHORTAGE; #endif ocb->flags = 0; ocb->ccb = NULL; STAILQ_INSERT_TAIL(&sbp->free_ocbs, ocb, ocb); } static void sbp_abort_ocb(struct sbp_ocb *ocb, int status) { struct sbp_dev *sdev; sdev = ocb->sdev; SBP_DEBUG(0) sbp_show_sdev_info(sdev, 2); printf("sbp_abort_ocb 0x%x\n", status); END_DEBUG STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb); if (ocb->ccb != NULL && !(ocb->flags & OCB_DONE)) { if (status != CAM_CMD_TIMEOUT) untimeout(sbp_timeout, (caddr_t)ocb, ocb->ccb->ccb_h.timeout_ch); ocb->ccb->ccb_h.status = status; xpt_done(ocb->ccb); } if (ocb->dmamap != NULL) { bus_dmamap_destroy(sdev->target->sbp->dmat, ocb->dmamap); ocb->dmamap = NULL; } sbp_free_ocb(sdev->target->sbp, ocb); } static void sbp_abort_all_ocbs(struct sbp_dev *sdev, int status) { int s; struct sbp_ocb *ocb; s = splfw(); while ((ocb = STAILQ_FIRST(&sdev->ocbs))) { sbp_abort_ocb(ocb, status); } splx(s); } static devclass_t sbp_devclass; static device_method_t sbp_methods[] = { /* device interface */ DEVMETHOD(device_identify, sbp_identify), DEVMETHOD(device_probe, sbp_probe), DEVMETHOD(device_attach, sbp_attach), DEVMETHOD(device_detach, sbp_detach), { 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);