Index: sys/cam/mmc/mmc_da.c =================================================================== --- sys/cam/mmc/mmc_da.c +++ sys/cam/mmc/mmc_da.c @@ -86,35 +86,66 @@ } sdda_flags; typedef enum { - SDDA_STATE_INIT, - SDDA_STATE_INVALID, - SDDA_STATE_NORMAL + SDDA_STATE_INIT, + SDDA_STATE_INVALID, + SDDA_STATE_NORMAL, + SDDA_STATE_PART_SWITCH, } sdda_state; +#define SDDA_FMT_BOOT "sdda%dboot" +#define SDDA_FMT_GP "sdda%dgp" +#define SDDA_FMT_RPMB "sdda%drpmb" +#define SDDA_LABEL_ENH "enh" + +#define SDDA_PART_NAMELEN (16 + 1) + +struct sdda_softc; + +struct sdda_part { + struct disk *disk; + struct bio_queue_head bio_queue; + int refcount; /* Active xpt_action() calls */ + sdda_flags flags; + struct sdda_softc *sc; + u_int cnt; + u_int type; + bool ro; + char name[SDDA_PART_NAMELEN]; +}; + struct sdda_softc { - struct bio_queue_head bio_queue; int outstanding_cmds; /* Number of active commands */ - int refcount; /* Active xpt_action() calls */ sdda_state state; - sdda_flags flags; struct mmc_data *mmcdata; + struct cam_periph *periph; // sdda_quirks quirks; struct task start_init_task; - struct disk *disk; - uint32_t raw_csd[4]; + uint32_t raw_csd[4]; uint8_t raw_ext_csd[512]; /* MMC only? */ - struct mmc_csd csd; - struct mmc_cid cid; + struct mmc_csd csd; + struct mmc_cid cid; struct mmc_scr scr; - /* Calculated from CSD */ - uint64_t sector_count; - uint64_t mediasize; + /* Calculated from CSD */ + uint64_t sector_count; + uint64_t mediasize; - /* Calculated from CID */ + /* Calculated from CID */ char card_id_string[64];/* Formatted CID info (serial, MFG, etc) */ char card_sn_string[16];/* Formatted serial # for disk->d_ident */ /* Determined from CSD + is highspeed card*/ uint32_t card_f_max; + + /* Generic switch timeout */ + uint32_t cmd6_time; + /* MMC partitions support */ + struct sdda_part *part[MMC_PART_MAX]; + uint8_t part_curr; /* Partition currently switched to */ + uint8_t part_requested; /* What partition we're currently switching to */ + uint32_t part_time; /* Partition switch timeout [us] */ + off_t enh_base; /* Enhanced user data area slice base ... */ + off_t enh_size; /* ... and size [bytes] */ + int log_count; + struct timeval log_time; }; #define ccb_bp ppriv_ptr1 @@ -133,9 +164,23 @@ u_int32_t sense_flags); static uint16_t get_rca(struct cam_periph *periph); -static cam_status sdda_hook_into_geom(struct cam_periph *periph); static void sdda_start_init(void *context, union ccb *start_ccb); static void sdda_start_init_task(void *context, int pending); +static void sdda_process_mmc_partitions(struct cam_periph *periph, union ccb *start_ccb); +static uint32_t sdda_get_host_caps(struct cam_periph *periph, union ccb *ccb); +static void sdda_init_switch_part(struct cam_periph *periph, union ccb *start_ccb, u_int part); + +static inline uint32_t mmc_get_sector_size(struct cam_periph *periph) {return MMC_SECTOR_SIZE;} + +/* TODO: actually issue GET_TRAN_SETTINGS to get R/O status */ +static inline bool sdda_get_read_only(struct cam_periph *periph, union ccb *start_ccb) { + return false; +} + +static uint32_t mmc_get_spec_vers(struct cam_periph *periph); +static uint64_t mmc_get_media_size(struct cam_periph *periph); +static void sdda_add_part(struct cam_periph *periph, u_int type, + const char *name, u_int cnt, off_t media_size, bool ro); static struct periph_driver sddadriver = { @@ -362,11 +407,14 @@ static int sddaopen(struct disk *dp) { + struct sdda_part *part; struct cam_periph *periph; struct sdda_softc *softc; int error; - periph = (struct cam_periph *)dp->d_drv1; + part = (struct sdda_part *)dp->d_drv1; + softc = part->sc; + periph = softc->periph; if (cam_periph_acquire(periph) != CAM_REQ_CMP) { return(ENXIO); } @@ -380,8 +428,7 @@ CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaopen\n")); - softc = (struct sdda_softc *)periph->softc; - softc->flags |= SDDA_FLAG_OPEN; + part->flags |= SDDA_FLAG_OPEN; cam_periph_unhold(periph); cam_periph_unlock(periph); @@ -391,21 +438,21 @@ static int sddaclose(struct disk *dp) { + struct sdda_part *part; struct cam_periph *periph; struct sdda_softc *softc; -// union ccb *ccb; -// int error; - periph = (struct cam_periph *)dp->d_drv1; - softc = (struct sdda_softc *)periph->softc; - softc->flags &= ~SDDA_FLAG_OPEN; + part = (struct sdda_part *)dp->d_drv1; + softc = part->sc; + periph = softc->periph; + part->flags &= ~SDDA_FLAG_OPEN; cam_periph_lock(periph); CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaclose\n")); - while (softc->refcount != 0) - cam_periph_sleep(periph, &softc->refcount, PRIBIO, "sddaclose", 1); + while (part->refcount != 0) + cam_periph_sleep(periph, &part->refcount, PRIBIO, "sddaclose", 1); cam_periph_unlock(periph); cam_periph_release(periph); return (0); @@ -415,9 +462,21 @@ sddaschedule(struct cam_periph *periph) { struct sdda_softc *softc = (struct sdda_softc *)periph->softc; + struct sdda_part *part; + struct bio *bp; + int i; /* Check if we have more work to do. */ - if (bioq_first(&softc->bio_queue)) { + /* Find partition that has outstanding commands. Prefer current partition. */ + bp = bioq_first(&softc->part[softc->part_curr]->bio_queue); + if (bp == NULL) { + for (i = 0; i < MMC_PART_MAX; i++) { + if ((part = softc->part[i]) != NULL && + (bp = bioq_first(&softc->part[i]->bio_queue)) != NULL) + break; + } + } + if (bp != NULL) { xpt_schedule(periph, CAM_PRIORITY_NORMAL); } } @@ -431,10 +490,12 @@ sddastrategy(struct bio *bp) { struct cam_periph *periph; + struct sdda_part *part; struct sdda_softc *softc; - periph = (struct cam_periph *)bp->bio_disk->d_drv1; - softc = (struct sdda_softc *)periph->softc; + part = (struct sdda_part *)bp->bio_disk->d_drv1; + softc = part->sc; + periph = softc->periph; cam_periph_lock(periph); @@ -452,7 +513,7 @@ /* * Place it in the queue of disk activities for this disk */ - bioq_disksort(&softc->bio_queue, bp); + bioq_disksort(&part->bio_queue, bp); /* * Schedule ourselves for performing the work. @@ -488,8 +549,10 @@ sddadiskgonecb(struct disk *dp) { struct cam_periph *periph; + struct sdda_part *part; - periph = (struct cam_periph *)dp->d_drv1; + part = (struct sdda_part *)dp->d_drv1; + periph = part->sc->periph; CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddadiskgonecb\n")); cam_periph_release(periph); @@ -499,6 +562,7 @@ sddaoninvalidate(struct cam_periph *periph) { struct sdda_softc *softc; + struct sdda_part *part; softc = (struct sdda_softc *)periph->softc; @@ -515,23 +579,34 @@ * with XPT_ABORT_CCB. */ CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush start\n")); - bioq_flush(&softc->bio_queue, NULL, ENXIO); + for (int i = 0; i < MMC_PART_MAX; i++) { + if ((part = softc->part[i]) != NULL) { + bioq_flush(&part->bio_queue, NULL, ENXIO); + disk_gone(part->disk); + } + } CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush end\n")); - disk_gone(softc->disk); } static void sddacleanup(struct cam_periph *periph) { struct sdda_softc *softc; + struct sdda_part *part; CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddacleanup\n")); softc = (struct sdda_softc *)periph->softc; cam_periph_unlock(periph); - disk_destroy(softc->disk); + for (int i = 0; i < MMC_PART_MAX; i++) { + if ((part = softc->part[i]) != NULL) { + disk_destroy(part->disk); + free(part, M_DEVBUF); + softc->part[i] = NULL; + } + } free(softc, M_DEVBUF); cam_periph_lock(periph); } @@ -599,10 +674,15 @@ buftype = (uintptr_t)arg; if (buftype == CDAI_TYPE_PHYS_PATH) { struct sdda_softc *softc; + struct sdda_part *part; softc = periph->softc; - disk_attr_changed(softc->disk, "GEOM::physpath", - M_NOWAIT); + for (int i = 0; i < MMC_PART_MAX; i++) { + if ((part = softc->part[i]) != NULL) { + disk_attr_changed(part->disk, "GEOM::physpath", + M_NOWAIT); + } + } } break; } @@ -623,9 +703,13 @@ sddagetattr(struct bio *bp) { int ret; - struct cam_periph *periph; + struct sdda_part *part; + struct cam_periph *periph; + struct sdda_softc *softc; - periph = (struct cam_periph *)bp->bio_disk->d_drv1; + part = (struct sdda_part *)bp->bio_disk->d_drv1; + softc = part->sc; + periph = softc->periph; cam_periph_lock(periph); ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, periph->path); @@ -661,11 +745,11 @@ return(CAM_REQ_CMP_ERR); } - bioq_init(&softc->bio_queue); softc->state = SDDA_STATE_INIT; softc->mmcdata = (struct mmc_data *) malloc(sizeof(struct mmc_data), M_DEVBUF, M_NOWAIT|M_ZERO); periph->softc = softc; + softc->periph = periph; request_ccb = (union ccb*) arg; xpt_schedule(periph, CAM_PRIORITY_XPT); @@ -675,103 +759,6 @@ return (CAM_REQ_CMP); } -static cam_status -sdda_hook_into_geom(struct cam_periph *periph) -{ - struct sdda_softc *softc; - struct ccb_pathinq cpi; - struct ccb_getdev cgd; - u_int maxio; - - softc = (struct sdda_softc*) periph->softc; - - bzero(&cpi, sizeof(cpi)); - xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); - cpi.ccb_h.func_code = XPT_PATH_INQ; - xpt_action((union ccb *)&cpi); - - bzero(&cgd, sizeof(cgd)); - xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NONE); - cpi.ccb_h.func_code = XPT_GDEV_TYPE; - xpt_action((union ccb *)&cgd); - - /* - * Register this media as a disk - */ - (void)cam_periph_hold(periph, PRIBIO); - cam_periph_unlock(periph); - - softc->disk = disk_alloc(); - softc->disk->d_rotation_rate = 0; - softc->disk->d_devstat = devstat_new_entry(periph->periph_name, - periph->unit_number, 512, - DEVSTAT_ALL_SUPPORTED, - DEVSTAT_TYPE_DIRECT | - XPORT_DEVSTAT_TYPE(cpi.transport), - DEVSTAT_PRIORITY_DISK); - softc->disk->d_open = sddaopen; - softc->disk->d_close = sddaclose; - softc->disk->d_strategy = sddastrategy; - softc->disk->d_getattr = sddagetattr; -// softc->disk->d_dump = sddadump; - softc->disk->d_gone = sddadiskgonecb; - softc->disk->d_name = "sdda"; - softc->disk->d_drv1 = periph; - maxio = cpi.maxio; /* Honor max I/O size of SIM */ - if (maxio == 0) - maxio = DFLTPHYS; /* traditional default */ - else if (maxio > MAXPHYS) - maxio = MAXPHYS; /* for safety */ - softc->disk->d_maxsize = maxio; - softc->disk->d_unit = periph->unit_number; - softc->disk->d_flags = DISKFLAG_CANDELETE; - strlcpy(softc->disk->d_descr, softc->card_id_string, - MIN(sizeof(softc->disk->d_descr), sizeof(softc->card_id_string))); - strlcpy(softc->disk->d_ident, softc->card_sn_string, - MIN(sizeof(softc->disk->d_ident), sizeof(softc->card_sn_string))); - softc->disk->d_hba_vendor = cpi.hba_vendor; - softc->disk->d_hba_device = cpi.hba_device; - softc->disk->d_hba_subvendor = cpi.hba_subvendor; - softc->disk->d_hba_subdevice = cpi.hba_subdevice; - - softc->disk->d_sectorsize = 512; - softc->disk->d_mediasize = softc->mediasize; - softc->disk->d_stripesize = 0; - softc->disk->d_fwsectors = 0; - softc->disk->d_fwheads = 0; - - /* - * Acquire a reference to the periph before we register with GEOM. - * We'll release this reference once GEOM calls us back (via - * sddadiskgonecb()) telling us that our provider has been freed. - */ - if (cam_periph_acquire(periph) != CAM_REQ_CMP) { - xpt_print(periph->path, "%s: lost periph during " - "registration!\n", __func__); - cam_periph_lock(periph); - return (CAM_REQ_CMP_ERR); - } - disk_create(softc->disk, DISK_VERSION); - cam_periph_lock(periph); - cam_periph_unhold(periph); - - xpt_announce_periph(periph, softc->card_id_string); - - /* - * Add async callbacks for bus reset and - * bus device reset calls. I don't bother - * checking if this fails as, in most cases, - * the system will function just fine without - * them and the only alternative would be to - * not attach the device on failure. - */ - xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | - AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, - sddaasync, periph, periph->path); - - return(CAM_REQ_CMP); -} - static int mmc_exec_app_cmd(struct cam_periph *periph, union ccb *ccb, struct mmc_command *cmd) { @@ -873,9 +860,6 @@ err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); if (err != 0) return err; - if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) - return MMC_ERR_FAILED; - return MMC_ERR_NONE; } @@ -896,10 +880,8 @@ scr->bus_widths = mmc_get_bits(raw_scr, 64, 48, 4); } -static int -mmc_switch(struct cam_periph *periph, union ccb *ccb, - uint8_t set, uint8_t index, uint8_t value) -{ +static inline void mmc_switch_fill_mmcio(union ccb *ccb, + uint8_t set, uint8_t index, uint8_t value, u_int timeout) { int arg = (MMC_SWITCH_FUNC_WR << 24) | (index << 16) | (value << 8) | @@ -912,8 +894,14 @@ /*mmc_arg*/ arg, /*mmc_flags*/ MMC_RSP_R1B | MMC_CMD_AC, /*mmc_data*/ NULL, - /*timeout*/ 0); + /*timeout*/ timeout); +} +static int +mmc_switch(struct cam_periph *periph, union ccb *ccb, + uint8_t set, uint8_t index, uint8_t value, u_int timeout) +{ + mmc_switch_fill_mmcio(ccb, set, index, value, timeout); cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { @@ -931,6 +919,18 @@ } +static uint32_t +mmc_get_spec_vers(struct cam_periph *periph) { + struct sdda_softc *softc = (struct sdda_softc *)periph->softc; + return softc->csd.spec_vers; +} + +static uint64_t +mmc_get_media_size(struct cam_periph *periph) { + struct sdda_softc *softc = (struct sdda_softc *)periph->softc; + return softc->mediasize; +} + static int mmc_sd_switch(struct cam_periph *periph, union ccb *ccb, uint8_t mode, uint8_t grp, uint8_t value, @@ -977,6 +977,7 @@ u_char switch_res[64]; int err; uint8_t value; + struct sdda_softc *softc = (struct sdda_softc *)periph->softc; struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, @@ -993,7 +994,7 @@ } if (mmcp->card_features & CARD_FEATURE_MMC) { err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_HS_TIMING, value); + EXT_CSD_HS_TIMING, value, softc->cmd6_time); } else { err = mmc_sd_switch(periph, ccb, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1, value, switch_res); } @@ -1032,6 +1033,7 @@ static void sdda_set_bus_width(struct cam_periph *periph, union ccb *ccb, int width) { + struct sdda_softc *softc = (struct sdda_softc *)periph->softc; struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; int err; @@ -1054,7 +1056,7 @@ panic("Invalid bus width %d", width); } err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_BUS_WIDTH, value); + EXT_CSD_BUS_WIDTH, value, softc->cmd6_time); } else { /* For SD cards we send ACMD6 with the required bus width in arg */ struct mmc_command cmd; @@ -1082,6 +1084,26 @@ xpt_action(ccb); } +static inline const char *part_type(u_int type) { + switch (type) { + case EXT_CSD_PART_CONFIG_ACC_RPMB: + return "RPMB"; + case EXT_CSD_PART_CONFIG_ACC_DEFAULT: + return "default"; + case EXT_CSD_PART_CONFIG_ACC_BOOT0: + return "boot0"; + case EXT_CSD_PART_CONFIG_ACC_BOOT1: + return "boot1"; + case EXT_CSD_PART_CONFIG_ACC_GP0: + case EXT_CSD_PART_CONFIG_ACC_GP1: + case EXT_CSD_PART_CONFIG_ACC_GP2: + case EXT_CSD_PART_CONFIG_ACC_GP3: + return "general purpose"; + default: + return "(unknown type)"; + } +} + static inline const char *bus_width_str(enum mmc_bus_width w) { switch (w) { case bus_width_1: @@ -1093,6 +1115,22 @@ } } +static uint32_t sdda_get_host_caps(struct cam_periph *periph, union ccb *ccb) { + struct ccb_trans_settings_mmc *cts; + cts = &ccb->cts.proto_specific.mmc; + + ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; + ccb->ccb_h.flags = CAM_DIR_NONE; + ccb->ccb_h.retry_count = 0; + ccb->ccb_h.timeout = 100; + ccb->ccb_h.cbfcnp = NULL; + xpt_action(ccb); + + if (ccb->ccb_h.status != CAM_REQ_CMP) + panic("Cannot get host caps"); + return cts->host_caps; +} + static void sdda_start_init(void *context, union ccb *start_ccb) { struct cam_periph *periph; @@ -1114,10 +1152,16 @@ if (mmcp->card_features & CARD_FEATURE_MMC) { mmc_decode_csd_mmc(mmcp->card_csd, &softc->csd); mmc_decode_cid_mmc(mmcp->card_cid, &softc->cid); - if (softc->csd.spec_vers >= 4) + if (mmc_get_spec_vers(periph) >= 4) { err = mmc_send_ext_csd(periph, start_ccb, (uint8_t *)&softc->raw_ext_csd, sizeof(softc->raw_ext_csd)); + if (err != 0) { + CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, + ("Cannot read EXT_CSD, err %d", err)); + return; + } + } } else { mmc_decode_csd_sd(mmcp->card_csd, &softc->csd); mmc_decode_cid_sd(mmcp->card_cid, &softc->cid); @@ -1125,9 +1169,10 @@ softc->sector_count = softc->csd.capacity / 512; softc->mediasize = softc->csd.capacity; + softc->cmd6_time = 500 * 1000; /* MMC >= 4.x have EXT_CSD that has its own opinion about capacity */ - if (softc->csd.spec_vers >= 4) { + if (mmc_get_spec_vers(periph) >= 4) { uint32_t sec_count = softc->raw_ext_csd[EXT_CSD_SEC_CNT] + (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 1] << 8) + (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 2] << 16) + @@ -1208,7 +1253,7 @@ } } - if (mmcp->card_features & CARD_FEATURE_MMC && softc->csd.spec_vers >= 4) { + if (mmcp->card_features & CARD_FEATURE_MMC && mmc_get_spec_vers(periph) >= 4) { if (softc->raw_ext_csd[EXT_CSD_CARD_TYPE] & EXT_CSD_CARD_TYPE_HS_52) softc->card_f_max = MMC_TYPE_HS_52_MAX; @@ -1261,8 +1306,302 @@ if (err != MMC_ERR_NONE) CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Cannot switch card to high-speed mode")); } + softc->state = SDDA_STATE_NORMAL; - sdda_hook_into_geom(periph); + + /* MMC partitions support */ + if (mmcp->card_features & CARD_FEATURE_MMC && mmc_get_spec_vers(periph) >= 4) { + sdda_process_mmc_partitions(periph, start_ccb); + } + + /* For SD[HC] cards, just add one partition that is the whole card */ + if (mmcp->card_features & CARD_FEATURE_SD20) { + sdda_add_part(periph, 0, "sdda", + periph->unit_number, + mmc_get_media_size(periph), + sdda_get_read_only(periph, start_ccb)); + softc->part_curr = 0; + } + + xpt_announce_periph(periph, softc->card_id_string); + /* + * Add async callbacks for bus reset and + * bus device reset calls. I don't bother + * checking if this fails as, in most cases, + * the system will function just fine without + * them and the only alternative would be to + * not attach the device on failure. + */ + xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | + AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, + sddaasync, periph, periph->path); +} + +/* TODO: actually add partitions to the device tree and GEOM */ +static void +sdda_add_part(struct cam_periph *periph, u_int type, const char *name, u_int cnt, off_t media_size, bool ro) { + struct sdda_softc *sc = (struct sdda_softc *)periph->softc; + struct sdda_part *part; + struct ccb_pathinq cpi; + u_int maxio; + + CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, + ("Partition type '%s', size %ju %s\n", + part_type(type), + media_size, + ro ? "(read-only)" : "")); + + part = sc->part[type] = malloc(sizeof(*part), M_DEVBUF, + M_WAITOK | M_ZERO); + + part->cnt = cnt; + part->type = type; + part->ro = ro; + part->sc = sc; + snprintf(part->name, sizeof(part->name), name, periph->unit_number); + + /* + * RPMB partition doesn't support normal I/O operations, + * so don't add it as disk. Istead, create a special device + * and handle IOCTL requests. + */ + if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { + /* TODO: Create device, assign IOCTL handler */ + CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, + ("Don't know what to do with RPMB partitions yet")); + return; + } + + bioq_init(&part->bio_queue); + + bzero(&cpi, sizeof(cpi)); + xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); + cpi.ccb_h.func_code = XPT_PATH_INQ; + xpt_action((union ccb *)&cpi); + + /* + * Register this media as a disk + */ + (void)cam_periph_hold(periph, PRIBIO); + cam_periph_unlock(periph); + + part->disk = disk_alloc(); + part->disk->d_rotation_rate = DISK_RR_NON_ROTATING; +/* part->disk->d_devstat = devstat_new_entry(periph->periph_name, + periph->unit_number, 512, + DEVSTAT_ALL_SUPPORTED, + DEVSTAT_TYPE_DIRECT | + XPORT_DEVSTAT_TYPE(cpi.transport), + DEVSTAT_PRIORITY_DISK); +*/ + part->disk->d_open = sddaopen; + part->disk->d_close = sddaclose; + part->disk->d_strategy = sddastrategy; + part->disk->d_getattr = sddagetattr; +// sc->disk->d_dump = sddadump; + part->disk->d_gone = sddadiskgonecb; + part->disk->d_name = part->name; + part->disk->d_drv1 = part; + maxio = cpi.maxio; /* Honor max I/O size of SIM */ + if (maxio == 0) + maxio = DFLTPHYS; /* traditional default */ + else if (maxio > MAXPHYS) + maxio = MAXPHYS; /* for safety */ + part->disk->d_maxsize = maxio; + part->disk->d_unit = cnt; + part->disk->d_flags = DISKFLAG_CANDELETE; + strlcpy(part->disk->d_descr, sc->card_id_string, + MIN(sizeof(part->disk->d_descr), sizeof(sc->card_id_string))); + strlcpy(part->disk->d_ident, sc->card_sn_string, + MIN(sizeof(part->disk->d_ident), sizeof(sc->card_sn_string))); + part->disk->d_hba_vendor = cpi.hba_vendor; + part->disk->d_hba_device = cpi.hba_device; + part->disk->d_hba_subvendor = cpi.hba_subvendor; + part->disk->d_hba_subdevice = cpi.hba_subdevice; + + part->disk->d_sectorsize = mmc_get_sector_size(periph); + part->disk->d_mediasize = media_size; + part->disk->d_stripesize = 0; + part->disk->d_fwsectors = 0; + part->disk->d_fwheads = 0; + + /* + * Acquire a reference to the periph before we register with GEOM. + * We'll release this reference once GEOM calls us back (via + * sddadiskgonecb()) telling us that our provider has been freed. + */ + if (cam_periph_acquire(periph) != CAM_REQ_CMP) { + xpt_print(periph->path, "%s: lost periph during " + "registration!\n", __func__); + cam_periph_lock(periph); + return; + } + disk_create(part->disk, DISK_VERSION); + cam_periph_lock(periph); + cam_periph_unhold(periph); +} + +/* + * For MMC cards, process EXT_CSD and add partitions that are supported by + * this device. + */ +static void +sdda_process_mmc_partitions(struct cam_periph *periph, union ccb *ccb) { + struct sdda_softc *sc = (struct sdda_softc *)periph->softc; + struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; + + const uint8_t *ext_csd; + off_t erase_size, sector_size, size, wp_size; + __unused uintmax_t bytes; + int i; + __unused uint32_t quirks; + uint8_t rev; + bool comp, ro; + + ext_csd = sc->raw_ext_csd; + + /* + * Enhanced user data area and general purpose partitions are only + * supported in revision 1.4 (EXT_CSD_REV == 4) and later, the RPMB + * partition in revision 1.5 (MMC v4.41, EXT_CSD_REV == 5) and later. + */ + rev = ext_csd[EXT_CSD_REV]; + + /* + * Ignore user-creatable enhanced user data area and general purpose + * partitions partitions as long as partitioning hasn't been finished. + */ + comp = (ext_csd[EXT_CSD_PART_SET] & EXT_CSD_PART_SET_COMPLETED) != 0; + + /* + * Add enhanced user data area slice, unless it spans the entirety of + * the user data area. The enhanced area is of a multiple of high + * capacity write protect groups ((ERASE_GRP_SIZE + HC_WP_GRP_SIZE) * + * 512 KB) and its offset given in either sectors or bytes, depending + * on whether it's a high capacity device or not. + * NB: The slicer and its slices need to be registered before adding + * the disk for the corresponding user data area as re-tasting is + * racy. + */ + sector_size = mmc_get_sector_size(periph); + size = ext_csd[EXT_CSD_ENH_SIZE_MULT] + + (ext_csd[EXT_CSD_ENH_SIZE_MULT + 1] << 8) + + (ext_csd[EXT_CSD_ENH_SIZE_MULT + 2] << 16); + if (rev >= 4 && comp == TRUE && size > 0 && + (ext_csd[EXT_CSD_PART_SUPPORT] & + EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && + (ext_csd[EXT_CSD_PART_ATTR] & (EXT_CSD_PART_ATTR_ENH_USR)) != 0) { + erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * + MMC_SECTOR_SIZE; + wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; + size *= erase_size * wp_size; + if (size != mmc_get_media_size(periph) * sector_size) { + sc->enh_size = size; + sc->enh_base = (ext_csd[EXT_CSD_ENH_START_ADDR] + + (ext_csd[EXT_CSD_ENH_START_ADDR + 1] << 8) + + (ext_csd[EXT_CSD_ENH_START_ADDR + 2] << 16) + + (ext_csd[EXT_CSD_ENH_START_ADDR + 3] << 24)) * + ((mmcp->card_features & CARD_FEATURE_SDHC) ? 1: MMC_SECTOR_SIZE); + } else + CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, + ("enhanced user data area spans entire device")); + } + + /* + * Add default partition. This may be the only one or the user + * data area in case partitions are supported. + */ + ro = sdda_get_read_only(periph, ccb); + sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_DEFAULT, "sdda", + periph->unit_number, mmc_get_media_size(periph) * sector_size, ro); + sc->part_curr = EXT_CSD_PART_CONFIG_ACC_DEFAULT; + + if (mmc_get_spec_vers(periph) < 3) + return; + + /* Belatedly announce enhanced user data slice. */ + if (sc->enh_size != 0) { + CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, + ("enhanced user data area off 0x%jx size %ju bytes\n", + sc->enh_base, sc->enh_size)); + } + + /* + * Determine partition switch timeout (provided in units of 10 ms) + * and ensure it's at least 300 ms as some eMMC chips lie. + */ + sc->part_time = max(ext_csd[EXT_CSD_PART_SWITCH_TO] * 10 * 1000, + 300 * 1000); + + /* Add boot partitions, which are of a fixed multiple of 128 KB. */ + size = ext_csd[EXT_CSD_BOOT_SIZE_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; + if (size > 0 && (sdda_get_host_caps(periph, ccb) & MMC_CAP_BOOT_NOACC) == 0) { + sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_BOOT0, + SDDA_FMT_BOOT, 0, size, + ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & + EXT_CSD_BOOT_WP_STATUS_BOOT0_MASK) != 0)); + sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_BOOT1, + SDDA_FMT_BOOT, 1, size, + ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & + EXT_CSD_BOOT_WP_STATUS_BOOT1_MASK) != 0)); + } + + /* Add RPMB partition, which also is of a fixed multiple of 128 KB. */ + size = ext_csd[EXT_CSD_RPMB_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; + if (rev >= 5 && size > 0) + sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_RPMB, + SDDA_FMT_RPMB, 0, size, ro); + + if (rev <= 3 || comp == FALSE) + return; + + /* + * Add general purpose partitions, which are of a multiple of high + * capacity write protect groups, too. + */ + if ((ext_csd[EXT_CSD_PART_SUPPORT] & EXT_CSD_PART_SUPPORT_EN) != 0) { + erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * + MMC_SECTOR_SIZE; + wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; + for (i = 0; i < MMC_PART_GP_MAX; i++) { + size = ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3] + + (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 1] << 8) + + (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 2] << 16); + if (size == 0) + continue; + sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_GP0 + i, + SDDA_FMT_GP, i, size * erase_size * wp_size, ro); + } + } +} + +/* + * We cannot just call mmc_switch() since it will sleep, + * and we are in GEOM context and cannot sleep. + * Instead, create an MMCIO request to switch partitions + * and send it to h/w, and upon completion resume processing + * the I/O queue. + * This function cannot fail, instead check switch errors in + * sddadone(). + */ +static void +sdda_init_switch_part(struct cam_periph *periph, union ccb *start_ccb, u_int part) { + struct sdda_softc *sc = (struct sdda_softc *)periph->softc; + uint8_t value; + + sc->part_requested = part; + + value = (sc->raw_ext_csd[EXT_CSD_PART_CONFIG] & + ~EXT_CSD_PART_CONFIG_ACC_MASK) | part; + + mmc_switch_fill_mmcio(start_ccb, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_PART_CONFIG, value, sc->part_time); + start_ccb->ccb_h.cbfcnp = sddadone; + + sc->outstanding_cmds++; + cam_periph_unlock(periph); + xpt_action(start_ccb); + cam_periph_lock(periph); } /* Called with periph lock held! */ @@ -1271,6 +1610,7 @@ { struct sdda_softc *softc = (struct sdda_softc *)periph->softc; struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; + struct sdda_part *part; CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastart\n")); @@ -1279,20 +1619,48 @@ xpt_release_ccb(start_ccb); return; } + struct bio *bp; - /* Run regular command. */ - bp = bioq_first(&softc->bio_queue); + /* Find partition that has outstanding commands. Prefer current partition. */ + int part_index; + part = softc->part[softc->part_curr]; + bp = bioq_first(&part->bio_queue); + if (bp == NULL) { + for (part_index = 0; part_index < MMC_PART_MAX; part_index++) { + if ((part = softc->part[part_index]) != NULL && + (bp = bioq_first(&softc->part[part_index]->bio_queue)) != NULL) + break; + } + } if (bp == NULL) { xpt_release_ccb(start_ccb); return; } - bioq_remove(&softc->bio_queue, bp); + if (part_index != softc->part_curr) { + CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Partition %d -> %d\n", softc->part_curr, part_index)); + /* + * According to section "6.2.2 Command restrictions" of the eMMC + * specification v5.1, CMD19/CMD21 aren't allowed to be used with + * RPMB partitions. So we pause re-tuning along with triggering + * it up-front to decrease the likelihood of re-tuning becoming + * necessary while accessing an RPMB partition. Consequently, an + * RPMB partition should immediately be switched away from again + * after an access in order to allow for re-tuning to take place + * anew. + */ + /* TODO: pause retune if switching to RPMB partition */ + softc->state = SDDA_STATE_PART_SWITCH; + sdda_init_switch_part(periph, start_ccb, part_index); + return; + } + + bioq_remove(&part->bio_queue, bp); switch (bp->bio_cmd) { case BIO_WRITE: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_WRITE\n")); - softc->flags |= SDDA_FLAG_DIRTY; + part->flags |= SDDA_FLAG_DIRTY; /* FALLTHROUGH */ case BIO_READ: { @@ -1354,11 +1722,11 @@ } start_ccb->ccb_h.ccb_bp = bp; softc->outstanding_cmds++; - softc->refcount++; + part->refcount++; cam_periph_unlock(periph); xpt_action(start_ccb); cam_periph_lock(periph); - softc->refcount--; + part->refcount--; /* May have more work to do, so ensure we stay scheduled */ sddaschedule(periph); @@ -1369,9 +1737,7 @@ { struct sdda_softc *softc; struct ccb_mmcio *mmcio; -// struct ccb_getdev *cgd; struct cam_path *path; -// int state; softc = (struct sdda_softc *)periph->softc; mmcio = &done_ccb->mmcio; @@ -1398,6 +1764,37 @@ error = 0; } + uint32_t card_status = mmcio->cmd.resp[0]; + CAM_DEBUG(path, CAM_DEBUG_TRACE, + ("Card status: %08x\n", R1_STATUS(card_status))); + CAM_DEBUG(path, CAM_DEBUG_TRACE, + ("Current state: %d\n", R1_CURRENT_STATE(card_status))); + + /* Process result of switching MMC partitions */ + if (softc->state == SDDA_STATE_PART_SWITCH) { + CAM_DEBUG(path, CAM_DEBUG_TRACE, + ("Compteting partition switch to %d\n", softc->part_requested)); + softc->outstanding_cmds--; + /* Complete partition switch */ + softc->state = SDDA_STATE_NORMAL; + if (error != MMC_ERR_NONE) { + /* TODO: Unpause retune if accessing RPMB */ + xpt_release_ccb(done_ccb); + xpt_schedule(periph, CAM_PRIORITY_NORMAL); + return; + } + + softc->raw_ext_csd[EXT_CSD_PART_CONFIG] = + (softc->raw_ext_csd[EXT_CSD_PART_CONFIG] & + ~EXT_CSD_PART_CONFIG_ACC_MASK) | softc->part_requested; + /* TODO: Unpause retune if accessing RPMB */ + softc->part_curr = softc->part_requested; + xpt_release_ccb(done_ccb); + + /* Return to processing BIO requests */ + xpt_schedule(periph, CAM_PRIORITY_NORMAL); + return; + } bp = (struct bio *)done_ccb->ccb_h.ccb_bp; bp->bio_error = error; @@ -1411,12 +1808,6 @@ bp->bio_flags |= BIO_ERROR; } - uint32_t card_status = mmcio->cmd.resp[0]; - CAM_DEBUG(path, CAM_DEBUG_TRACE, - ("Card status: %08x\n", R1_STATUS(card_status))); - CAM_DEBUG(path, CAM_DEBUG_TRACE, - ("Current state: %d\n", R1_CURRENT_STATE(card_status))); - softc->outstanding_cmds--; xpt_release_ccb(done_ccb); biodone(bp);