diff options
Diffstat (limited to 'drivers/s390')
43 files changed, 1211 insertions, 871 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index fa2339cb1681..0e86247d791e 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -65,6 +65,7 @@ static void dasd_device_tasklet(struct dasd_device *); static void dasd_block_tasklet(struct dasd_block *); static void do_kick_device(struct work_struct *); static void do_restore_device(struct work_struct *); +static void do_reload_device(struct work_struct *); static void dasd_return_cqr_cb(struct dasd_ccw_req *, void *); static void dasd_device_timeout(unsigned long); static void dasd_block_timeout(unsigned long); @@ -115,6 +116,7 @@ struct dasd_device *dasd_alloc_device(void) device->timer.data = (unsigned long) device; INIT_WORK(&device->kick_work, do_kick_device); INIT_WORK(&device->restore_device, do_restore_device); + INIT_WORK(&device->reload_device, do_reload_device); device->state = DASD_STATE_NEW; device->target = DASD_STATE_NEW; mutex_init(&device->state_mutex); @@ -521,6 +523,26 @@ void dasd_kick_device(struct dasd_device *device) } /* + * dasd_reload_device will schedule a call do do_reload_device to the kernel + * event daemon. + */ +static void do_reload_device(struct work_struct *work) +{ + struct dasd_device *device = container_of(work, struct dasd_device, + reload_device); + device->discipline->reload(device); + dasd_put_device(device); +} + +void dasd_reload_device(struct dasd_device *device) +{ + dasd_get_device(device); + /* queue call to dasd_reload_device to the kernel event daemon. */ + schedule_work(&device->reload_device); +} +EXPORT_SYMBOL(dasd_reload_device); + +/* * dasd_restore_device will schedule a call do do_restore_device to the kernel * event daemon. */ diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index 6632649dd6aa..85bfd8794856 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -1418,9 +1418,29 @@ static struct dasd_ccw_req *dasd_3990_erp_inspect_alias( struct dasd_ccw_req *erp) { struct dasd_ccw_req *cqr = erp->refers; + char *sense; if (cqr->block && (cqr->block->base != cqr->startdev)) { + + sense = dasd_get_sense(&erp->refers->irb); + /* + * dynamic pav may have changed base alias mapping + */ + if (!test_bit(DASD_FLAG_OFFLINE, &cqr->startdev->flags) && sense + && (sense[0] == 0x10) && (sense[7] == 0x0F) + && (sense[8] == 0x67)) { + /* + * remove device from alias handling to prevent new + * requests from being scheduled on the + * wrong alias device + */ + dasd_alias_remove_device(cqr->startdev); + + /* schedule worker to reload device */ + dasd_reload_device(cqr->startdev); + } + if (cqr->startdev->features & DASD_FEATURE_ERPLOG) { DBF_DEV_EVENT(DBF_ERR, cqr->startdev, "ERP on alias device for request %p," diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c index 8c4814258e93..4155805dcdff 100644 --- a/drivers/s390/block/dasd_alias.c +++ b/drivers/s390/block/dasd_alias.c @@ -190,20 +190,21 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) struct alias_server *server, *newserver; struct alias_lcu *lcu, *newlcu; int is_lcu_known; - struct dasd_uid *uid; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; + + device->discipline->get_uid(device, &uid); spin_lock_irqsave(&aliastree.lock, flags); is_lcu_known = 1; - server = _find_server(uid); + server = _find_server(&uid); if (!server) { spin_unlock_irqrestore(&aliastree.lock, flags); - newserver = _allocate_server(uid); + newserver = _allocate_server(&uid); if (IS_ERR(newserver)) return PTR_ERR(newserver); spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(uid); + server = _find_server(&uid); if (!server) { list_add(&newserver->server, &aliastree.serverlist); server = newserver; @@ -214,14 +215,14 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) } } - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); if (!lcu) { spin_unlock_irqrestore(&aliastree.lock, flags); - newlcu = _allocate_lcu(uid); + newlcu = _allocate_lcu(&uid); if (IS_ERR(newlcu)) return PTR_ERR(newlcu); spin_lock_irqsave(&aliastree.lock, flags); - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); if (!lcu) { list_add(&newlcu->lcu, &server->lculist); lcu = newlcu; @@ -256,20 +257,20 @@ void dasd_alias_lcu_setup_complete(struct dasd_device *device) unsigned long flags; struct alias_server *server; struct alias_lcu *lcu; - struct dasd_uid *uid; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; + device->discipline->get_uid(device, &uid); lcu = NULL; spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(uid); + server = _find_server(&uid); if (server) - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); spin_unlock_irqrestore(&aliastree.lock, flags); if (!lcu) { DBF_EVENT_DEVID(DBF_ERR, device->cdev, "could not find lcu for %04x %02x", - uid->ssid, uid->real_unit_addr); + uid.ssid, uid.real_unit_addr); WARN_ON(1); return; } @@ -282,20 +283,20 @@ void dasd_alias_wait_for_lcu_setup(struct dasd_device *device) unsigned long flags; struct alias_server *server; struct alias_lcu *lcu; - struct dasd_uid *uid; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; + device->discipline->get_uid(device, &uid); lcu = NULL; spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(uid); + server = _find_server(&uid); if (server) - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); spin_unlock_irqrestore(&aliastree.lock, flags); if (!lcu) { DBF_EVENT_DEVID(DBF_ERR, device->cdev, "could not find lcu for %04x %02x", - uid->ssid, uid->real_unit_addr); + uid.ssid, uid.real_unit_addr); WARN_ON(1); return; } @@ -314,9 +315,11 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device) struct alias_lcu *lcu; struct alias_server *server; int was_pending; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; lcu = private->lcu; + device->discipline->get_uid(device, &uid); spin_lock_irqsave(&lcu->lock, flags); list_del_init(&device->alias_list); /* make sure that the workers don't use this device */ @@ -353,7 +356,7 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device) _schedule_lcu_update(lcu, NULL); spin_unlock(&lcu->lock); } - server = _find_server(&private->uid); + server = _find_server(&uid); if (server && list_empty(&server->lculist)) { list_del(&server->server); _free_server(server); @@ -366,19 +369,30 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device) * in the lcu is up to date and will update the device uid before * adding it to a pav group. */ + static int _add_device_to_lcu(struct alias_lcu *lcu, - struct dasd_device *device) + struct dasd_device *device, + struct dasd_device *pos) { struct dasd_eckd_private *private; struct alias_pav_group *group; - struct dasd_uid *uid; + struct dasd_uid uid; + unsigned long flags; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; - uid->type = lcu->uac->unit[uid->real_unit_addr].ua_type; - uid->base_unit_addr = lcu->uac->unit[uid->real_unit_addr].base_ua; - dasd_set_uid(device->cdev, &private->uid); + + /* only lock if not already locked */ + if (device != pos) + spin_lock_irqsave_nested(get_ccwdev_lock(device->cdev), flags, + CDEV_NESTED_SECOND); + private->uid.type = lcu->uac->unit[private->uid.real_unit_addr].ua_type; + private->uid.base_unit_addr = + lcu->uac->unit[private->uid.real_unit_addr].base_ua; + uid = private->uid; + + if (device != pos) + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); /* if we have no PAV anyway, we don't need to bother with PAV groups */ if (lcu->pav == NO_PAV) { @@ -386,25 +400,25 @@ static int _add_device_to_lcu(struct alias_lcu *lcu, return 0; } - group = _find_group(lcu, uid); + group = _find_group(lcu, &uid); if (!group) { group = kzalloc(sizeof(*group), GFP_ATOMIC); if (!group) return -ENOMEM; - memcpy(group->uid.vendor, uid->vendor, sizeof(uid->vendor)); - memcpy(group->uid.serial, uid->serial, sizeof(uid->serial)); - group->uid.ssid = uid->ssid; - if (uid->type == UA_BASE_DEVICE) - group->uid.base_unit_addr = uid->real_unit_addr; + memcpy(group->uid.vendor, uid.vendor, sizeof(uid.vendor)); + memcpy(group->uid.serial, uid.serial, sizeof(uid.serial)); + group->uid.ssid = uid.ssid; + if (uid.type == UA_BASE_DEVICE) + group->uid.base_unit_addr = uid.real_unit_addr; else - group->uid.base_unit_addr = uid->base_unit_addr; - memcpy(group->uid.vduit, uid->vduit, sizeof(uid->vduit)); + group->uid.base_unit_addr = uid.base_unit_addr; + memcpy(group->uid.vduit, uid.vduit, sizeof(uid.vduit)); INIT_LIST_HEAD(&group->group); INIT_LIST_HEAD(&group->baselist); INIT_LIST_HEAD(&group->aliaslist); list_add(&group->group, &lcu->grouplist); } - if (uid->type == UA_BASE_DEVICE) + if (uid.type == UA_BASE_DEVICE) list_move(&device->alias_list, &group->baselist); else list_move(&device->alias_list, &group->aliaslist); @@ -525,7 +539,10 @@ static int _lcu_update(struct dasd_device *refdev, struct alias_lcu *lcu) if (rc) return rc; - spin_lock_irqsave(&lcu->lock, flags); + /* need to take cdev lock before lcu lock */ + spin_lock_irqsave_nested(get_ccwdev_lock(refdev->cdev), flags, + CDEV_NESTED_FIRST); + spin_lock(&lcu->lock); lcu->pav = NO_PAV; for (i = 0; i < MAX_DEVICES_PER_LCU; ++i) { switch (lcu->uac->unit[i].ua_type) { @@ -542,9 +559,10 @@ static int _lcu_update(struct dasd_device *refdev, struct alias_lcu *lcu) list_for_each_entry_safe(device, tempdev, &lcu->active_devices, alias_list) { - _add_device_to_lcu(lcu, device); + _add_device_to_lcu(lcu, device, refdev); } - spin_unlock_irqrestore(&lcu->lock, flags); + spin_unlock(&lcu->lock); + spin_unlock_irqrestore(get_ccwdev_lock(refdev->cdev), flags); return 0; } @@ -628,9 +646,12 @@ int dasd_alias_add_device(struct dasd_device *device) private = (struct dasd_eckd_private *) device->private; lcu = private->lcu; rc = 0; - spin_lock_irqsave(&lcu->lock, flags); + + /* need to take cdev lock before lcu lock */ + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + spin_lock(&lcu->lock); if (!(lcu->flags & UPDATE_PENDING)) { - rc = _add_device_to_lcu(lcu, device); + rc = _add_device_to_lcu(lcu, device, device); if (rc) lcu->flags |= UPDATE_PENDING; } @@ -638,10 +659,19 @@ int dasd_alias_add_device(struct dasd_device *device) list_move(&device->alias_list, &lcu->active_devices); _schedule_lcu_update(lcu, device); } - spin_unlock_irqrestore(&lcu->lock, flags); + spin_unlock(&lcu->lock); + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); return rc; } +int dasd_alias_update_add_device(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + private = (struct dasd_eckd_private *) device->private; + private->lcu->flags |= UPDATE_PENDING; + return dasd_alias_add_device(device); +} + int dasd_alias_remove_device(struct dasd_device *device) { struct dasd_eckd_private *private; @@ -740,19 +770,30 @@ static void _restart_all_base_devices_on_lcu(struct alias_lcu *lcu) struct alias_pav_group *pavgroup; struct dasd_device *device; struct dasd_eckd_private *private; + unsigned long flags; /* active and inactive list can contain alias as well as base devices */ list_for_each_entry(device, &lcu->active_devices, alias_list) { private = (struct dasd_eckd_private *) device->private; - if (private->uid.type != UA_BASE_DEVICE) + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + if (private->uid.type != UA_BASE_DEVICE) { + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), + flags); continue; + } + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); dasd_schedule_block_bh(device->block); dasd_schedule_device_bh(device); } list_for_each_entry(device, &lcu->inactive_devices, alias_list) { private = (struct dasd_eckd_private *) device->private; - if (private->uid.type != UA_BASE_DEVICE) + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + if (private->uid.type != UA_BASE_DEVICE) { + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), + flags); continue; + } + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); dasd_schedule_block_bh(device->block); dasd_schedule_device_bh(device); } diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index eff9c812c5c2..34d51dd4c539 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -49,7 +49,6 @@ struct dasd_devmap { unsigned int devindex; unsigned short features; struct dasd_device *device; - struct dasd_uid uid; }; /* @@ -936,42 +935,46 @@ dasd_device_status_show(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR(status, 0444, dasd_device_status_show, NULL); -static ssize_t -dasd_alias_show(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t dasd_alias_show(struct device *dev, + struct device_attribute *attr, char *buf) { - struct dasd_devmap *devmap; - int alias; + struct dasd_device *device; + struct dasd_uid uid; - devmap = dasd_find_busid(dev_name(dev)); - spin_lock(&dasd_devmap_lock); - if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { - spin_unlock(&dasd_devmap_lock); + device = dasd_device_from_cdev(to_ccwdev(dev)); + if (IS_ERR(device)) return sprintf(buf, "0\n"); + + if (device->discipline && device->discipline->get_uid && + !device->discipline->get_uid(device, &uid)) { + if (uid.type == UA_BASE_PAV_ALIAS || + uid.type == UA_HYPER_PAV_ALIAS) + return sprintf(buf, "1\n"); } - if (devmap->uid.type == UA_BASE_PAV_ALIAS || - devmap->uid.type == UA_HYPER_PAV_ALIAS) - alias = 1; - else - alias = 0; - spin_unlock(&dasd_devmap_lock); - return sprintf(buf, alias ? "1\n" : "0\n"); + dasd_put_device(device); + + return sprintf(buf, "0\n"); } static DEVICE_ATTR(alias, 0444, dasd_alias_show, NULL); -static ssize_t -dasd_vendor_show(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t dasd_vendor_show(struct device *dev, + struct device_attribute *attr, char *buf) { - struct dasd_devmap *devmap; + struct dasd_device *device; + struct dasd_uid uid; char *vendor; - devmap = dasd_find_busid(dev_name(dev)); - spin_lock(&dasd_devmap_lock); - if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0) - vendor = devmap->uid.vendor; - else - vendor = ""; - spin_unlock(&dasd_devmap_lock); + device = dasd_device_from_cdev(to_ccwdev(dev)); + vendor = ""; + if (IS_ERR(device)) + return snprintf(buf, PAGE_SIZE, "%s\n", vendor); + + if (device->discipline && device->discipline->get_uid && + !device->discipline->get_uid(device, &uid)) + vendor = uid.vendor; + + dasd_put_device(device); return snprintf(buf, PAGE_SIZE, "%s\n", vendor); } @@ -985,48 +988,51 @@ static DEVICE_ATTR(vendor, 0444, dasd_vendor_show, NULL); static ssize_t dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct dasd_devmap *devmap; + struct dasd_device *device; + struct dasd_uid uid; char uid_string[UID_STRLEN]; char ua_string[3]; - struct dasd_uid *uid; - devmap = dasd_find_busid(dev_name(dev)); - spin_lock(&dasd_devmap_lock); - if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { - spin_unlock(&dasd_devmap_lock); - return sprintf(buf, "\n"); - } - uid = &devmap->uid; - switch (uid->type) { - case UA_BASE_DEVICE: - sprintf(ua_string, "%02x", uid->real_unit_addr); - break; - case UA_BASE_PAV_ALIAS: - sprintf(ua_string, "%02x", uid->base_unit_addr); - break; - case UA_HYPER_PAV_ALIAS: - sprintf(ua_string, "xx"); - break; - default: - /* should not happen, treat like base device */ - sprintf(ua_string, "%02x", uid->real_unit_addr); - break; + device = dasd_device_from_cdev(to_ccwdev(dev)); + uid_string[0] = 0; + if (IS_ERR(device)) + return snprintf(buf, PAGE_SIZE, "%s\n", uid_string); + + if (device->discipline && device->discipline->get_uid && + !device->discipline->get_uid(device, &uid)) { + switch (uid.type) { + case UA_BASE_DEVICE: + snprintf(ua_string, sizeof(ua_string), "%02x", + uid.real_unit_addr); + break; + case UA_BASE_PAV_ALIAS: + snprintf(ua_string, sizeof(ua_string), "%02x", + uid.base_unit_addr); + break; + case UA_HYPER_PAV_ALIAS: + snprintf(ua_string, sizeof(ua_string), "xx"); + break; + default: + /* should not happen, treat like base device */ + snprintf(ua_string, sizeof(ua_string), "%02x", + uid.real_unit_addr); + break; + } + + if (strlen(uid.vduit) > 0) + snprintf(uid_string, sizeof(uid_string), + "%s.%s.%04x.%s.%s", + uid.vendor, uid.serial, uid.ssid, ua_string, + uid.vduit); + else + snprintf(uid_string, sizeof(uid_string), + "%s.%s.%04x.%s", + uid.vendor, uid.serial, uid.ssid, ua_string); } - if (strlen(uid->vduit) > 0) - snprintf(uid_string, sizeof(uid_string), - "%s.%s.%04x.%s.%s", - uid->vendor, uid->serial, - uid->ssid, ua_string, - uid->vduit); - else - snprintf(uid_string, sizeof(uid_string), - "%s.%s.%04x.%s", - uid->vendor, uid->serial, - uid->ssid, ua_string); - spin_unlock(&dasd_devmap_lock); + dasd_put_device(device); + return snprintf(buf, PAGE_SIZE, "%s\n", uid_string); } - static DEVICE_ATTR(uid, 0444, dasd_uid_show, NULL); /* @@ -1094,50 +1100,6 @@ static struct attribute_group dasd_attr_group = { }; /* - * Return copy of the device unique identifier. - */ -int -dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid) -{ - struct dasd_devmap *devmap; - - devmap = dasd_find_busid(dev_name(&cdev->dev)); - if (IS_ERR(devmap)) - return PTR_ERR(devmap); - spin_lock(&dasd_devmap_lock); - *uid = devmap->uid; - spin_unlock(&dasd_devmap_lock); - return 0; -} -EXPORT_SYMBOL_GPL(dasd_get_uid); - -/* - * Register the given device unique identifier into devmap struct. - * In addition check if the related storage server subsystem ID is already - * contained in the dasd_server_ssid_list. If subsystem ID is not contained, - * create new entry. - * Return 0 if server was already in serverlist, - * 1 if the server was added successful - * <0 in case of error. - */ -int -dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) -{ - struct dasd_devmap *devmap; - - devmap = dasd_find_busid(dev_name(&cdev->dev)); - if (IS_ERR(devmap)) - return PTR_ERR(devmap); - - spin_lock(&dasd_devmap_lock); - devmap->uid = *uid; - spin_unlock(&dasd_devmap_lock); - - return 0; -} -EXPORT_SYMBOL_GPL(dasd_set_uid); - -/* * Return value of the specified feature. */ int diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 0cb233116855..5b1cd8d6e971 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -692,18 +692,20 @@ dasd_eckd_cdl_reclen(int recid) /* * Generate device unique id that specifies the physical device. */ -static int dasd_eckd_generate_uid(struct dasd_device *device, - struct dasd_uid *uid) +static int dasd_eckd_generate_uid(struct dasd_device *device) { struct dasd_eckd_private *private; + struct dasd_uid *uid; int count; + unsigned long flags; private = (struct dasd_eckd_private *) device->private; if (!private) return -ENODEV; if (!private->ned || !private->gneq) return -ENODEV; - + uid = &private->uid; + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); memset(uid, 0, sizeof(struct dasd_uid)); memcpy(uid->vendor, private->ned->HDA_manufacturer, sizeof(uid->vendor) - 1); @@ -726,9 +728,25 @@ static int dasd_eckd_generate_uid(struct dasd_device *device, private->vdsneq->uit[count]); } } + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); return 0; } +static int dasd_eckd_get_uid(struct dasd_device *device, struct dasd_uid *uid) +{ + struct dasd_eckd_private *private; + unsigned long flags; + + if (device->private) { + private = (struct dasd_eckd_private *)device->private; + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + *uid = private->uid; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + return 0; + } + return -EINVAL; +} + static struct dasd_ccw_req *dasd_eckd_build_rcd_lpm(struct dasd_device *device, void *rcd_buffer, struct ciw *ciw, __u8 lpm) @@ -1088,6 +1106,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device) { struct dasd_eckd_private *private; struct dasd_block *block; + struct dasd_uid temp_uid; int is_known, rc; int readonly; @@ -1124,13 +1143,13 @@ dasd_eckd_check_characteristics(struct dasd_device *device) if (rc) goto out_err1; - /* Generate device unique id and register in devmap */ - rc = dasd_eckd_generate_uid(device, &private->uid); + /* Generate device unique id */ + rc = dasd_eckd_generate_uid(device); if (rc) goto out_err1; - dasd_set_uid(device->cdev, &private->uid); - if (private->uid.type == UA_BASE_DEVICE) { + dasd_eckd_get_uid(device, &temp_uid); + if (temp_uid.type == UA_BASE_DEVICE) { block = dasd_alloc_block(); if (IS_ERR(block)) { DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s", @@ -1451,6 +1470,7 @@ static int dasd_eckd_ready_to_online(struct dasd_device *device) static int dasd_eckd_online_to_ready(struct dasd_device *device) { + cancel_work_sync(&device->reload_device); return dasd_alias_remove_device(device); }; @@ -1709,10 +1729,27 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device, { char mask; char *sense = NULL; + struct dasd_eckd_private *private; + private = (struct dasd_eckd_private *) device->private; /* first of all check for state change pending interrupt */ mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; if ((scsw_dstat(&irb->scsw) & mask) == mask) { + /* for alias only and not in offline processing*/ + if (!device->block && private->lcu && + !test_bit(DASD_FLAG_OFFLINE, &device->flags)) { + /* + * the state change could be caused by an alias + * reassignment remove device from alias handling + * to prevent new requests from being scheduled on + * the wrong alias device + */ + dasd_alias_remove_device(device); + + /* schedule worker to reload device */ + dasd_reload_device(device); + } + dasd_generic_handle_state_change(device); return; } @@ -3259,7 +3296,7 @@ static void dasd_eckd_dump_sense(struct dasd_device *device, dasd_eckd_dump_sense_ccw(device, req, irb); } -int dasd_eckd_pm_freeze(struct dasd_device *device) +static int dasd_eckd_pm_freeze(struct dasd_device *device) { /* * the device should be disconnected from our LCU structure @@ -3272,7 +3309,7 @@ int dasd_eckd_pm_freeze(struct dasd_device *device) return 0; } -int dasd_eckd_restore_device(struct dasd_device *device) +static int dasd_eckd_restore_device(struct dasd_device *device) { struct dasd_eckd_private *private; struct dasd_eckd_characteristics temp_rdc_data; @@ -3287,15 +3324,16 @@ int dasd_eckd_restore_device(struct dasd_device *device) if (rc) goto out_err; - /* Generate device unique id and register in devmap */ - rc = dasd_eckd_generate_uid(device, &private->uid); - dasd_get_uid(device->cdev, &temp_uid); + dasd_eckd_get_uid(device, &temp_uid); + /* Generate device unique id */ + rc = dasd_eckd_generate_uid(device); + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); if (memcmp(&private->uid, &temp_uid, sizeof(struct dasd_uid)) != 0) dev_err(&device->cdev->dev, "The UID of the DASD has " "changed\n"); + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); if (rc) goto out_err; - dasd_set_uid(device->cdev, &private->uid); /* register lcu with alias handling, enable PAV if this is a new lcu */ is_known = dasd_alias_make_device_known_to_lcu(device); @@ -3336,6 +3374,56 @@ out_err: return -1; } +static int dasd_eckd_reload_device(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + int rc, old_base; + char print_uid[60]; + struct dasd_uid uid; + unsigned long flags; + + private = (struct dasd_eckd_private *) device->private; + + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + old_base = private->uid.base_unit_addr; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + + /* Read Configuration Data */ + rc = dasd_eckd_read_conf(device); + if (rc) + goto out_err; + + rc = dasd_eckd_generate_uid(device); + if (rc) + goto out_err; + /* + * update unit address configuration and + * add device to alias management + */ + dasd_alias_update_add_device(device); + + dasd_eckd_get_uid(device, &uid); + + if (old_base != uid.base_unit_addr) { + if (strlen(uid.vduit) > 0) + snprintf(print_uid, sizeof(print_uid), + "%s.%s.%04x.%02x.%s", uid.vendor, uid.serial, + uid.ssid, uid.base_unit_addr, uid.vduit); + else + snprintf(print_uid, sizeof(print_uid), + "%s.%s.%04x.%02x", uid.vendor, uid.serial, + uid.ssid, uid.base_unit_addr); + + dev_info(&device->cdev->dev, + "An Alias device was reassigned to a new base device " + "with UID: %s\n", print_uid); + } + return 0; + +out_err: + return -1; +} + static struct ccw_driver dasd_eckd_driver = { .name = "dasd-eckd", .owner = THIS_MODULE, @@ -3389,6 +3477,8 @@ static struct dasd_discipline dasd_eckd_discipline = { .ioctl = dasd_eckd_ioctl, .freeze = dasd_eckd_pm_freeze, .restore = dasd_eckd_restore_device, + .reload = dasd_eckd_reload_device, + .get_uid = dasd_eckd_get_uid, }; static int __init diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 864d53c04201..dd6385a5af14 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -426,7 +426,6 @@ struct alias_pav_group { struct dasd_device *next; }; - struct dasd_eckd_private { struct dasd_eckd_characteristics rdc_data; u8 *conf_data; @@ -463,4 +462,5 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *, struct irb *); void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *); void dasd_alias_lcu_setup_complete(struct dasd_device *); void dasd_alias_wait_for_lcu_setup(struct dasd_device *); +int dasd_alias_update_add_device(struct dasd_device *); #endif /* DASD_ECKD_H */ diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index a91d4a97d4f2..32fac186ba3f 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -81,6 +81,10 @@ struct dasd_block; #define DASD_SIM_MSG_TO_OP 0x03 #define DASD_SIM_LOG 0x0C +/* lock class for nested cdev lock */ +#define CDEV_NESTED_FIRST 1 +#define CDEV_NESTED_SECOND 2 + /* * SECTION: MACROs for klogd and s390 debug feature (dbf) */ @@ -229,6 +233,24 @@ struct dasd_ccw_req { typedef struct dasd_ccw_req *(*dasd_erp_fn_t) (struct dasd_ccw_req *); /* + * Unique identifier for dasd device. + */ +#define UA_NOT_CONFIGURED 0x00 +#define UA_BASE_DEVICE 0x01 +#define UA_BASE_PAV_ALIAS 0x02 +#define UA_HYPER_PAV_ALIAS 0x03 + +struct dasd_uid { + __u8 type; + char vendor[4]; + char serial[15]; + __u16 ssid; + __u8 real_unit_addr; + __u8 base_unit_addr; + char vduit[33]; +}; + +/* * the struct dasd_discipline is * sth like a table of virtual functions, if you think of dasd_eckd * inheriting dasd... @@ -312,28 +334,15 @@ struct dasd_discipline { /* suspend/resume functions */ int (*freeze) (struct dasd_device *); int (*restore) (struct dasd_device *); -}; -extern struct dasd_discipline *dasd_diag_discipline_pointer; - -/* - * Unique identifier for dasd device. - */ -#define UA_NOT_CONFIGURED 0x00 -#define UA_BASE_DEVICE 0x01 -#define UA_BASE_PAV_ALIAS 0x02 -#define UA_HYPER_PAV_ALIAS 0x03 + /* reload device after state change */ + int (*reload) (struct dasd_device *); -struct dasd_uid { - __u8 type; - char vendor[4]; - char serial[15]; - __u16 ssid; - __u8 real_unit_addr; - __u8 base_unit_addr; - char vduit[33]; + int (*get_uid) (struct dasd_device *, struct dasd_uid *); }; +extern struct dasd_discipline *dasd_diag_discipline_pointer; + /* * Notification numbers for extended error reporting notifications: * The DASD_EER_DISABLE notification is sent before a dasd_device (and it's @@ -386,6 +395,7 @@ struct dasd_device { struct tasklet_struct tasklet; struct work_struct kick_work; struct work_struct restore_device; + struct work_struct reload_device; struct timer_list timer; debug_info_t *debug_area; @@ -582,6 +592,7 @@ void dasd_enable_device(struct dasd_device *); void dasd_set_target_state(struct dasd_device *, int); void dasd_kick_device(struct dasd_device *); void dasd_restore_device(struct dasd_device *); +void dasd_reload_device(struct dasd_device *); void dasd_add_request_head(struct dasd_ccw_req *); void dasd_add_request_tail(struct dasd_ccw_req *); @@ -629,8 +640,6 @@ void dasd_devmap_exit(void); struct dasd_device *dasd_create_device(struct ccw_device *); void dasd_delete_device(struct dasd_device *); -int dasd_get_uid(struct ccw_device *, struct dasd_uid *); -int dasd_set_uid(struct ccw_device *, struct dasd_uid *); int dasd_get_feature(struct ccw_device *, int); int dasd_set_feature(struct ccw_device *, int, int); diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig index 4e34d3686c23..40834f18754c 100644 --- a/drivers/s390/char/Kconfig +++ b/drivers/s390/char/Kconfig @@ -148,13 +148,12 @@ config VMLOGRDR This driver depends on the IUCV support driver. config VMCP - tristate "Support for the z/VM CP interface (VM only)" + bool "Support for the z/VM CP interface" depends on S390 help Select this option if you want to be able to interact with the control program on z/VM - config MONREADER tristate "API for reading z/VM monitor service records" depends on IUCV diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index 0eabcca3c92d..857dfcb7b359 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -484,6 +484,7 @@ fs3270_open(struct inode *inode, struct file *filp) raw3270_del_view(&fp->view); goto out; } + nonseekable_open(inode, filp); filp->private_data = fp; out: mutex_unlock(&fs3270_mutex); diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c index cb6bffe7141a..18d9a497863b 100644 --- a/drivers/s390/char/keyboard.c +++ b/drivers/s390/char/keyboard.c @@ -49,7 +49,7 @@ static unsigned char ret_diacr[NR_DEAD] = { struct kbd_data * kbd_alloc(void) { struct kbd_data *kbd; - int i, len; + int i; kbd = kzalloc(sizeof(struct kbd_data), GFP_KERNEL); if (!kbd) @@ -59,12 +59,11 @@ kbd_alloc(void) { goto out_kbd; for (i = 0; i < ARRAY_SIZE(key_maps); i++) { if (key_maps[i]) { - kbd->key_maps[i] = - kmalloc(sizeof(u_short)*NR_KEYS, GFP_KERNEL); + kbd->key_maps[i] = kmemdup(key_maps[i], + sizeof(u_short) * NR_KEYS, + GFP_KERNEL); if (!kbd->key_maps[i]) goto out_maps; - memcpy(kbd->key_maps[i], key_maps[i], - sizeof(u_short)*NR_KEYS); } } kbd->func_table = kzalloc(sizeof(func_table), GFP_KERNEL); @@ -72,23 +71,21 @@ kbd_alloc(void) { goto out_maps; for (i = 0; i < ARRAY_SIZE(func_table); i++) { if (func_table[i]) { - len = strlen(func_table[i]) + 1; - kbd->func_table[i] = kmalloc(len, GFP_KERNEL); + kbd->func_table[i] = kstrdup(func_table[i], + GFP_KERNEL); if (!kbd->func_table[i]) goto out_func; - memcpy(kbd->func_table[i], func_table[i], len); } } kbd->fn_handler = kzalloc(sizeof(fn_handler_fn *) * NR_FN_HANDLER, GFP_KERNEL); if (!kbd->fn_handler) goto out_func; - kbd->accent_table = - kmalloc(sizeof(struct kbdiacruc)*MAX_DIACR, GFP_KERNEL); + kbd->accent_table = kmemdup(accent_table, + sizeof(struct kbdiacruc) * MAX_DIACR, + GFP_KERNEL); if (!kbd->accent_table) goto out_fn_handler; - memcpy(kbd->accent_table, accent_table, - sizeof(struct kbdiacruc)*MAX_DIACR); kbd->accent_table_size = accent_table_size; return kbd; diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c index 62c2647f37f4..4a51e3f09689 100644 --- a/drivers/s390/char/sclp_cpi_sys.c +++ b/drivers/s390/char/sclp_cpi_sys.c @@ -102,7 +102,7 @@ static struct sclp_req *cpi_prepare_req(void) /* set system name */ set_data(evb->system_name, system_name); - /* set sytem level */ + /* set system level */ evb->system_level = system_level; /* set sysplex name */ diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 5bb59d36a6d4..04e532eec032 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -1,24 +1,20 @@ /* - * Copyright IBM Corp. 2004,2007 + * Copyright IBM Corp. 2004,2010 * Interface implementation for communication with the z/VM control program - * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> * + * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> * * z/VMs CP offers the possibility to issue commands via the diagnose code 8 * this driver implements a character device that issues these commands and * returns the answer of CP. - + * * The idea of this driver is based on cpint from Neale Ferguson and #CP in CMS */ -#define KMSG_COMPONENT "vmcp" -#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt - #include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/miscdevice.h> -#include <linux/module.h> #include <linux/slab.h> #include <asm/compat.h> #include <asm/cpcmd.h> @@ -26,10 +22,6 @@ #include <asm/uaccess.h> #include "vmcp.h" -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Borntraeger <borntraeger@de.ibm.com>"); -MODULE_DESCRIPTION("z/VM CP interface"); - static debug_info_t *vmcp_debug; static int vmcp_open(struct inode *inode, struct file *file) @@ -197,11 +189,8 @@ static int __init vmcp_init(void) { int ret; - if (!MACHINE_IS_VM) { - pr_warning("The z/VM CP interface device driver cannot be " - "loaded without z/VM\n"); - return -ENODEV; - } + if (!MACHINE_IS_VM) + return 0; vmcp_debug = debug_register("vmcp", 1, 1, 240); if (!vmcp_debug) @@ -214,19 +203,8 @@ static int __init vmcp_init(void) } ret = misc_register(&vmcp_dev); - if (ret) { + if (ret) debug_unregister(vmcp_debug); - return ret; - } - - return 0; -} - -static void __exit vmcp_exit(void) -{ - misc_deregister(&vmcp_dev); - debug_unregister(vmcp_debug); + return ret; } - -module_init(vmcp_init); -module_exit(vmcp_exit); +device_initcall(vmcp_init); diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index 7217966f7d31..f5ea3384a4b9 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -445,7 +445,7 @@ static int zcore_memmap_open(struct inode *inode, struct file *filp) } kfree(chunk_array); filp->private_data = buf; - return 0; + return nonseekable_open(inode, filp); } static int zcore_memmap_release(struct inode *inode, struct file *filp) @@ -473,7 +473,7 @@ static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf, static int zcore_reipl_open(struct inode *inode, struct file *filp) { - return 0; + return nonseekable_open(inode, filp); } static int zcore_reipl_release(struct inode *inode, struct file *filp) diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index 1d16189f2f2d..6c9fa15aac7b 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -135,7 +135,8 @@ static int s390_vary_chpid(struct chp_id chpid, int on) /* * Channel measurement related functions */ -static ssize_t chp_measurement_chars_read(struct kobject *kobj, +static ssize_t chp_measurement_chars_read(struct file *filp, + struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { @@ -182,7 +183,7 @@ static void chp_measurement_copy_block(struct cmg_entry *buf, } while (reference_buf.values[0] != buf->values[0]); } -static ssize_t chp_measurement_read(struct kobject *kobj, +static ssize_t chp_measurement_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 3b6f4adc5094..a83877c664a6 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -803,6 +803,7 @@ static long chsc_ioctl(struct file *filp, unsigned int cmd, static const struct file_operations chsc_fops = { .owner = THIS_MODULE, + .open = nonseekable_open, .unlocked_ioctl = chsc_ioctl, .compat_ioctl = chsc_ioctl, }; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 5feea1a371e1..f4e6cf3aceb8 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -616,7 +616,8 @@ void __irq_entry do_IRQ(struct pt_regs *regs) struct pt_regs *old_regs; old_regs = set_irq_regs(regs); - s390_idle_check(); + s390_idle_check(regs, S390_lowcore.int_clock, + S390_lowcore.async_enter_timer); irq_enter(); __get_cpu_var(s390_idle).nohz_delay = 1; if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 511649115bd7..ac94ac751459 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -648,6 +648,8 @@ static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow) static void __init css_generate_pgid(struct channel_subsystem *css, u32 tod_high) { + struct cpuid cpu_id; + if (css_general_characteristics.mcss) { css->global_pgid.pgid_high.ext_cssid.version = 0x80; css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid; @@ -658,8 +660,9 @@ css_generate_pgid(struct channel_subsystem *css, u32 tod_high) css->global_pgid.pgid_high.cpu_addr = 0; #endif } - css->global_pgid.cpu_id = S390_lowcore.cpu_id.ident; - css->global_pgid.cpu_model = S390_lowcore.cpu_id.machine; + get_cpu_id(&cpu_id); + css->global_pgid.cpu_id = cpu_id.ident; + css->global_pgid.cpu_model = cpu_id.machine; css->global_pgid.tod_high = tod_high; } @@ -1062,6 +1065,7 @@ static ssize_t cio_settle_write(struct file *file, const char __user *buf, } static const struct file_operations cio_settle_proc_fops = { + .open = nonseekable_open, .write = cio_settle_write, }; diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 48aa0647432b..f0037eefd44e 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -13,8 +13,8 @@ #include <asm/debug.h> #include "chsc.h" -#define QDIO_BUSY_BIT_PATIENCE 100 /* 100 microseconds */ -#define QDIO_INPUT_THRESHOLD 500 /* 500 microseconds */ +#define QDIO_BUSY_BIT_PATIENCE (100 << 12) /* 100 microseconds */ +#define QDIO_INPUT_THRESHOLD (500 << 12) /* 500 microseconds */ /* * if an asynchronous HiperSockets queue runs full, the 10 seconds timer wait @@ -296,10 +296,8 @@ struct qdio_q { struct qdio_irq *irq_ptr; struct sl *sl; /* - * Warning: Leave this member at the end so it won't be cleared in - * qdio_fill_qs. A page is allocated under this pointer and used for - * slib and sl. slib is 2048 bytes big and sl points to offset - * PAGE_SIZE / 2. + * A page is allocated under this pointer and used for slib and sl. + * slib is 2048 bytes big and sl points to offset PAGE_SIZE / 2. */ struct slib *slib; } __attribute__ ((aligned(256))); @@ -372,11 +370,6 @@ static inline int multicast_outbound(struct qdio_q *q) (q->nr == q->irq_ptr->nr_output_qs - 1); } -static inline unsigned long long get_usecs(void) -{ - return monotonic_clock() >> 12; -} - #define pci_out_supported(q) \ (q->irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED) #define is_qebsm(q) (q->irq_ptr->sch_token != 0) diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 88be7b9ea6e1..00520f9a7a8e 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -336,10 +336,10 @@ again: WARN_ON(queue_type(q) != QDIO_IQDIO_QFMT || cc != 2); if (!start_time) { - start_time = get_usecs(); + start_time = get_clock(); goto again; } - if ((get_usecs() - start_time) < QDIO_BUSY_BIT_PATIENCE) + if ((get_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE) goto again; } return cc; @@ -536,7 +536,7 @@ static int qdio_inbound_q_moved(struct qdio_q *q) if ((bufnr != q->last_move) || q->qdio_error) { q->last_move = bufnr; if (!is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR) - q->u.in.timestamp = get_usecs(); + q->u.in.timestamp = get_clock(); return 1; } else return 0; @@ -567,7 +567,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q) * At this point we know, that inbound first_to_check * has (probably) not moved (see qdio_inbound_processing). */ - if (get_usecs() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { + if (get_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x", q->first_to_check); return 1; @@ -606,7 +606,7 @@ static void qdio_kick_handler(struct qdio_q *q) static void __qdio_inbound_processing(struct qdio_q *q) { qperf_inc(q, tasklet_inbound); -again: + if (!qdio_inbound_q_moved(q)) return; @@ -615,7 +615,10 @@ again: if (!qdio_inbound_q_done(q)) { /* means poll time is not yet over */ qperf_inc(q, tasklet_inbound_resched); - goto again; + if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) { + tasklet_schedule(&q->tasklet); + return; + } } qdio_stop_polling(q); @@ -625,7 +628,8 @@ again: */ if (!qdio_inbound_q_done(q)) { qperf_inc(q, tasklet_inbound_resched2); - goto again; + if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) + tasklet_schedule(&q->tasklet); } } @@ -955,6 +959,9 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm, return; } + if (irq_ptr->perf_stat_enabled) + irq_ptr->perf_stat.qdio_int++; + if (IS_ERR(irb)) { switch (PTR_ERR(irb)) { case -EIO: @@ -1016,30 +1023,6 @@ int qdio_get_ssqd_desc(struct ccw_device *cdev, } EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc); -/** - * qdio_cleanup - shutdown queues and free data structures - * @cdev: associated ccw device - * @how: use halt or clear to shutdown - * - * This function calls qdio_shutdown() for @cdev with method @how. - * and qdio_free(). The qdio_free() return value is ignored since - * !irq_ptr is already checked. - */ -int qdio_cleanup(struct ccw_device *cdev, int how) -{ - struct qdio_irq *irq_ptr = cdev->private->qdio_data; - int rc; - - if (!irq_ptr) - return -ENODEV; - - rc = qdio_shutdown(cdev, how); - - qdio_free(cdev); - return rc; -} -EXPORT_SYMBOL_GPL(qdio_cleanup); - static void qdio_shutdown_queues(struct ccw_device *cdev) { struct qdio_irq *irq_ptr = cdev->private->qdio_data; @@ -1157,28 +1140,6 @@ int qdio_free(struct ccw_device *cdev) EXPORT_SYMBOL_GPL(qdio_free); /** - * qdio_initialize - allocate and establish queues for a qdio subchannel - * @init_data: initialization data - * - * This function first allocates queues via qdio_allocate() and on success - * establishes them via qdio_establish(). - */ -int qdio_initialize(struct qdio_initialize *init_data) -{ - int rc; - - rc = qdio_allocate(init_data); - if (rc) - return rc; - - rc = qdio_establish(init_data); - if (rc) - qdio_free(init_data->cdev); - return rc; -} -EXPORT_SYMBOL_GPL(qdio_initialize); - -/** * qdio_allocate - allocate qdio queues and associated data * @init_data: initialization data */ diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index 7f4a75465140..6326b67c45d2 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -106,10 +106,12 @@ int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs, int nr_output_qs static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr, qdio_handler_t *handler, int i) { - /* must be cleared by every qdio_establish */ - memset(q, 0, ((char *)&q->slib) - ((char *)q)); - memset(q->slib, 0, PAGE_SIZE); + struct slib *slib = q->slib; + /* queue must be cleared for qdio_establish */ + memset(q, 0, sizeof(*q)); + memset(slib, 0, PAGE_SIZE); + q->slib = slib; q->irq_ptr = irq_ptr; q->mask = 1 << (31 - i); q->nr = i; diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index ce5f8910ff83..8daf1b99f153 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -95,7 +95,7 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr) for_each_input_queue(irq_ptr, q, i) list_add_rcu(&q->entry, &tiq_list); mutex_unlock(&tiq_list_lock); - xchg(irq_ptr->dsci, 1); + xchg(irq_ptr->dsci, 1 << 7); } void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr) @@ -173,7 +173,7 @@ static void tiqdio_thinint_handler(void *ind, void *drv_data) /* prevent racing */ if (*tiqdio_alsi) - xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 1); + xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 1 << 7); } } diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index 304caf549973..41e0aaefafd5 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -302,7 +302,7 @@ static ssize_t zcrypt_write(struct file *filp, const char __user *buf, static int zcrypt_open(struct inode *inode, struct file *filp) { atomic_inc(&zcrypt_open_count); - return 0; + return nonseekable_open(inode, filp); } /** diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index e35713dd0504..4ecafbf91211 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -1364,8 +1364,7 @@ static int add_channel(struct ccw_device *cdev, enum ctcm_channel_types type, ch->protocol = priv->protocol; if (IS_MPC(priv)) { - ch->discontact_th = (struct th_header *) - kzalloc(TH_HEADER_LENGTH, gfp_type()); + ch->discontact_th = kzalloc(TH_HEADER_LENGTH, gfp_type()); if (ch->discontact_th == NULL) goto nomem_return; @@ -1379,8 +1378,7 @@ static int add_channel(struct ccw_device *cdev, enum ctcm_channel_types type, } else ccw_num = 8; - ch->ccw = (struct ccw1 *) - kzalloc(ccw_num * sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); + ch->ccw = kzalloc(ccw_num * sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); if (ch->ccw == NULL) goto nomem_return; diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c index 5978b390153f..87c24d2936d6 100644 --- a/drivers/s390/net/ctcm_mpc.c +++ b/drivers/s390/net/ctcm_mpc.c @@ -669,8 +669,7 @@ static void ctcmpc_send_sweep_resp(struct channel *rch) goto done; } - header = (struct th_sweep *) - kmalloc(sizeof(struct th_sweep), gfp_type()); + header = kmalloc(sizeof(struct th_sweep), gfp_type()); if (!header) { dev_kfree_skb_any(sweep_skb); @@ -1191,8 +1190,7 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) skb_pull(pskb, new_len); /* point to next PDU */ } } else { - mpcginfo = (struct mpcg_info *) - kmalloc(sizeof(struct mpcg_info), gfp_type()); + mpcginfo = kmalloc(sizeof(struct mpcg_info), gfp_type()); if (mpcginfo == NULL) goto done; diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 9b19ea13b4d8..0f19d540b655 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -1238,8 +1238,7 @@ lcs_set_mc_addresses(struct lcs_card *card, struct in_device *in4_dev) ipm = lcs_check_addr_entry(card, im4, buf); if (ipm != NULL) continue; /* Address already in list. */ - ipm = (struct lcs_ipm_list *) - kzalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC); + ipm = kzalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC); if (ipm == NULL) { pr_info("Not enough memory to add" " new multicast entry!\n"); diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index fcd005aad989..7a44c38aaf65 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -179,25 +179,23 @@ static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa, ((prot == QETH_PROT_IPV6) ? \ qeth_is_enabled6(c, f) : qeth_is_enabled(c, f)) -#define QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT 0x0101 -#define QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT 0x0101 +#define QETH_IDX_FUNC_LEVEL_OSD 0x0101 #define QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT 0x4108 #define QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT 0x5108 #define QETH_MODELLIST_ARRAY \ - {{0x1731, 0x01, 0x1732, 0x01, QETH_CARD_TYPE_OSAE, 1, \ - QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ - QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ - QETH_MAX_QUEUES, 0}, \ - {0x1731, 0x05, 0x1732, 0x05, QETH_CARD_TYPE_IQD, 0, \ - QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT, \ - QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT, \ - QETH_MAX_QUEUES, 0x103}, \ - {0x1731, 0x06, 0x1732, 0x06, QETH_CARD_TYPE_OSN, 0, \ - QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT, \ - QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT, \ - QETH_MAX_QUEUES, 0}, \ - {0, 0, 0, 0, 0, 0, 0, 0, 0} } + {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \ + {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \ + {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \ + {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \ + {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \ + {0, 0, 0, 0, 0, 0} } +#define QETH_CU_TYPE_IND 0 +#define QETH_CU_MODEL_IND 1 +#define QETH_DEV_TYPE_IND 2 +#define QETH_DEV_MODEL_IND 3 +#define QETH_QUEUE_NO_IND 4 +#define QETH_MULTICAST_IND 5 #define QETH_REAL_CARD 1 #define QETH_VLAN_CARD 2 @@ -351,7 +349,7 @@ enum qeth_header_ids { #define QETH_HDR_EXT_SRC_MAC_ADDR 0x08 #define QETH_HDR_EXT_CSUM_HDR_REQ 0x10 #define QETH_HDR_EXT_CSUM_TRANSP_REQ 0x20 -#define QETH_HDR_EXT_UDP_TSO 0x40 /*bit off for TCP*/ +#define QETH_HDR_EXT_UDP 0x40 /*bit off for TCP*/ static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) { @@ -630,6 +628,7 @@ struct qeth_card_info { int unique_id; struct qeth_card_blkt blkt; __u32 csum_mask; + __u32 tx_csum_mask; enum qeth_ipa_promisc_modes promisc_mode; }; @@ -739,6 +738,7 @@ struct qeth_card { atomic_t force_alloc_skb; struct service_level qeth_service_level; struct qdio_ssqd_desc ssqd; + struct mutex conf_mutex; }; struct qeth_card_list_struct { diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 3ba738b2e271..13ef46b9d388 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -53,7 +53,7 @@ struct kmem_cache *qeth_core_header_cache; EXPORT_SYMBOL_GPL(qeth_core_header_cache); static struct device *qeth_core_root_dev; -static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY; +static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY; static struct lock_class_key qdio_out_skb_queue_key; static void qeth_send_control_data_cb(struct qeth_channel *, @@ -111,21 +111,29 @@ static inline const char *qeth_get_cardname(struct qeth_card *card) { if (card->info.guestlan) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: return " Guest LAN QDIO"; case QETH_CARD_TYPE_IQD: return " Guest LAN Hiper"; + case QETH_CARD_TYPE_OSM: + return " Guest LAN QDIO - OSM"; + case QETH_CARD_TYPE_OSX: + return " Guest LAN QDIO - OSX"; default: return " unknown"; } } else { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: return " OSD Express"; case QETH_CARD_TYPE_IQD: return " HiperSockets"; case QETH_CARD_TYPE_OSN: return " OSN QDIO"; + case QETH_CARD_TYPE_OSM: + return " OSM QDIO"; + case QETH_CARD_TYPE_OSX: + return " OSX QDIO"; default: return " unknown"; } @@ -138,16 +146,20 @@ const char *qeth_get_cardname_short(struct qeth_card *card) { if (card->info.guestlan) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: return "GuestLAN QDIO"; case QETH_CARD_TYPE_IQD: return "GuestLAN Hiper"; + case QETH_CARD_TYPE_OSM: + return "GuestLAN OSM"; + case QETH_CARD_TYPE_OSX: + return "GuestLAN OSX"; default: return "unknown"; } } else { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: switch (card->info.link_type) { case QETH_LINK_TYPE_FAST_ETH: return "OSD_100"; @@ -172,6 +184,10 @@ const char *qeth_get_cardname_short(struct qeth_card *card) return "HiperSockets"; case QETH_CARD_TYPE_OSN: return "OSN"; + case QETH_CARD_TYPE_OSM: + return "OSM_1000"; + case QETH_CARD_TYPE_OSX: + return "OSX_10GIG"; default: return "unknown"; } @@ -419,7 +435,8 @@ void qeth_clear_ipacmd_list(struct qeth_card *card) } EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); -static int qeth_check_idx_response(unsigned char *buffer) +static int qeth_check_idx_response(struct qeth_card *card, + unsigned char *buffer) { if (!buffer) return 0; @@ -434,6 +451,12 @@ static int qeth_check_idx_response(unsigned char *buffer) QETH_DBF_TEXT(TRACE, 2, "ckidxres"); QETH_DBF_TEXT(TRACE, 2, " idxterm"); QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); + if (buffer[4] == 0xf6) { + dev_err(&card->gdev->dev, + "The qeth device is not configured " + "for the OSI layer required by z/VM\n"); + return -EPERM; + } return -EIO; } return 0; @@ -528,18 +551,19 @@ static void qeth_send_control_data_cb(struct qeth_channel *channel, struct qeth_ipa_cmd *cmd; unsigned long flags; int keep_reply; + int rc = 0; QETH_DBF_TEXT(TRACE, 4, "sndctlcb"); card = CARD_FROM_CDEV(channel->ccwdev); - if (qeth_check_idx_response(iob->data)) { + rc = qeth_check_idx_response(card, iob->data); + switch (rc) { + case 0: + break; + case -EIO: qeth_clear_ipacmd_list(card); - if (((iob->data[2] & 0xc0) == 0xc0) && iob->data[4] == 0xf6) - dev_err(&card->gdev->dev, - "The qeth device is not configured " - "for the OSI layer required by z/VM\n"); - else - qeth_schedule_recovery(card); + qeth_schedule_recovery(card); + default: goto out; } @@ -606,7 +630,7 @@ static int qeth_setup_channel(struct qeth_channel *channel) QETH_DBF_TEXT(SETUP, 2, "setupch"); for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { - channel->iob[cnt].data = (char *) + channel->iob[cnt].data = kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); if (channel->iob[cnt].data == NULL) break; @@ -719,7 +743,7 @@ static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) QETH_DBF_TEXT(TRACE, 2, "CGENCHK"); dev_warn(&cdev->dev, "The qeth device driver " "failed to recover an error on the device\n"); - QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x ", + QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n", dev_name(&cdev->dev), dstat, cstat); print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 16, 1, irb, 64, 1); @@ -998,9 +1022,8 @@ static void qeth_clean_channel(struct qeth_channel *channel) kfree(channel->iob[cnt].data); } -static int qeth_is_1920_device(struct qeth_card *card) +static void qeth_get_channel_path_desc(struct qeth_card *card) { - int single_queue = 0; struct ccw_device *ccwdev; struct channelPath_dsc { u8 flags; @@ -1013,17 +1036,25 @@ static int qeth_is_1920_device(struct qeth_card *card) u8 chpp; } *chp_dsc; - QETH_DBF_TEXT(SETUP, 2, "chk_1920"); + QETH_DBF_TEXT(SETUP, 2, "chp_desc"); ccwdev = card->data.ccwdev; chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); if (chp_dsc != NULL) { /* CHPP field bit 6 == 1 -> single queue */ - single_queue = ((chp_dsc->chpp & 0x02) == 0x02); + if ((chp_dsc->chpp & 0x02) == 0x02) + card->qdio.no_out_queues = 1; + card->info.func_level = 0x4100 + chp_dsc->desc; kfree(chp_dsc); } - QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue); - return single_queue; + if (card->qdio.no_out_queues == 1) { + card->qdio.default_out_queue = 0; + dev_info(&card->gdev->dev, + "Priority Queueing not supported\n"); + } + QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); + QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); + return; } static void qeth_init_qdio_info(struct qeth_card *card) @@ -1100,6 +1131,7 @@ static int qeth_setup_card(struct qeth_card *card) spin_lock_init(&card->lock); spin_lock_init(&card->ip_lock); spin_lock_init(&card->thread_mask_lock); + mutex_init(&card->conf_mutex); card->thread_start_mask = 0; card->thread_allowed_mask = 0; card->thread_running_mask = 0; @@ -1170,18 +1202,17 @@ static int qeth_determine_card_type(struct qeth_card *card) card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; - while (known_devices[i][4]) { - if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) && - (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) { - card->info.type = known_devices[i][4]; - card->qdio.no_out_queues = known_devices[i][8]; - card->info.is_multicast_different = known_devices[i][9]; - if (qeth_is_1920_device(card)) { - dev_info(&card->gdev->dev, - "Priority Queueing not supported\n"); - card->qdio.no_out_queues = 1; - card->qdio.default_out_queue = 0; - } + while (known_devices[i][QETH_DEV_MODEL_IND]) { + if ((CARD_RDEV(card)->id.dev_type == + known_devices[i][QETH_DEV_TYPE_IND]) && + (CARD_RDEV(card)->id.dev_model == + known_devices[i][QETH_DEV_MODEL_IND])) { + card->info.type = known_devices[i][QETH_DEV_MODEL_IND]; + card->qdio.no_out_queues = + known_devices[i][QETH_QUEUE_NO_IND]; + card->info.is_multicast_different = + known_devices[i][QETH_MULTICAST_IND]; + qeth_get_channel_path_desc(card); return 0; } i++; @@ -1292,13 +1323,14 @@ int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) QETH_QDIO_CLEANING)) { case QETH_QDIO_ESTABLISHED: if (card->info.type == QETH_CARD_TYPE_IQD) - rc = qdio_cleanup(CARD_DDEV(card), + rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_HALT); else - rc = qdio_cleanup(CARD_DDEV(card), + rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_CLEAR); if (rc) QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc); + qdio_free(CARD_DDEV(card)); atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); break; case QETH_QDIO_CLEANING: @@ -1398,22 +1430,20 @@ static void qeth_init_tokens(struct qeth_card *card) static void qeth_init_func_level(struct qeth_card *card) { - if (card->ipato.enabled) { - if (card->info.type == QETH_CARD_TYPE_IQD) - card->info.func_level = - QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT; - else - card->info.func_level = - QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT; - } else { - if (card->info.type == QETH_CARD_TYPE_IQD) - /*FIXME:why do we have same values for dis and ena for - osae??? */ + switch (card->info.type) { + case QETH_CARD_TYPE_IQD: + if (card->ipato.enabled) card->info.func_level = - QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT; + QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT; else card->info.func_level = - QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT; + QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT; + break; + case QETH_CARD_TYPE_OSD: + card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; + break; + default: + break; } } @@ -1560,7 +1590,7 @@ static void qeth_idx_write_cb(struct qeth_channel *channel, card = CARD_FROM_CDEV(channel->ccwdev); if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { - if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) + if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) dev_err(&card->write.ccwdev->dev, "The adapter is used exclusively by another " "host\n"); @@ -1596,27 +1626,35 @@ static void qeth_idx_read_cb(struct qeth_channel *channel, } card = CARD_FROM_CDEV(channel->ccwdev); - if (qeth_check_idx_response(iob->data)) + if (qeth_check_idx_response(card, iob->data)) goto out; if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { - if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) + switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { + case QETH_IDX_ACT_ERR_EXCL: dev_err(&card->write.ccwdev->dev, "The adapter is used exclusively by another " "host\n"); - else + break; + case QETH_IDX_ACT_ERR_AUTH: + dev_err(&card->read.ccwdev->dev, + "Setting the device online failed because of " + "insufficient LPAR authorization\n"); + break; + default: QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" " negative reply\n", dev_name(&card->read.ccwdev->dev)); + } goto out; } /** - * temporary fix for microcode bug - * to revert it,replace OR by AND - */ + * * temporary fix for microcode bug + * * to revert it,replace OR by AND + * */ if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || - (card->info.type == QETH_CARD_TYPE_OSAE)) + (card->info.type == QETH_CARD_TYPE_OSD)) card->info.portname_required = 1; memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); @@ -1825,7 +1863,7 @@ static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) return 1500; case QETH_CARD_TYPE_IQD: return card->info.max_mtu; - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: switch (card->info.link_type) { case QETH_LINK_TYPE_HSTR: case QETH_LINK_TYPE_LANE_TR: @@ -1833,6 +1871,9 @@ static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) default: return 1492; } + case QETH_CARD_TYPE_OSM: + case QETH_CARD_TYPE_OSX: + return 1492; default: return 1500; } @@ -1843,8 +1884,10 @@ static inline int qeth_get_max_mtu_for_card(int cardtype) switch (cardtype) { case QETH_CARD_TYPE_UNKNOWN: - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: case QETH_CARD_TYPE_OSN: + case QETH_CARD_TYPE_OSM: + case QETH_CARD_TYPE_OSX: return 61440; case QETH_CARD_TYPE_IQD: return 57344; @@ -1882,7 +1925,9 @@ static inline int qeth_get_mtu_outof_framesize(int framesize) static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: + case QETH_CARD_TYPE_OSM: + case QETH_CARD_TYPE_OSX: return ((mtu >= 576) && (mtu <= 61440)); case QETH_CARD_TYPE_IQD: return ((mtu >= 576) && @@ -1933,6 +1978,7 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, card->info.link_type = link_type; } else card->info.link_type = 0; + QETH_DBF_TEXT_(SETUP, 2, "link%d", link_type); QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); return 0; } @@ -1976,6 +2022,7 @@ static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, unsigned long data) { struct qeth_cmd_buffer *iob; + int rc = 0; QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); @@ -1983,8 +2030,15 @@ static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, memcpy(&card->token.ulp_connection_r, QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), QETH_MPC_TOKEN_LENGTH); + if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), + 3)) { + QETH_DBF_TEXT(SETUP, 2, "olmlimit"); + dev_err(&card->gdev->dev, "A connection could not be " + "established because of an OLM limit\n"); + rc = -EMLINK; + } QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); - return 0; + return rc; } static int qeth_ulp_setup(struct qeth_card *card) @@ -2237,7 +2291,9 @@ static void qeth_print_status_no_portname(struct qeth_card *card) void qeth_print_status_message(struct qeth_card *card) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: + case QETH_CARD_TYPE_OSD: + case QETH_CARD_TYPE_OSM: + case QETH_CARD_TYPE_OSX: /* VM will use a non-zero first character * to indicate a HiperSockets like reporting * of the level OSA sets the first character to zero @@ -2544,9 +2600,11 @@ static int qeth_query_setadapterparms_cb(struct qeth_card *card, QETH_DBF_TEXT(TRACE, 3, "quyadpcb"); cmd = (struct qeth_ipa_cmd *) data; - if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) + if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { card->info.link_type = cmd->data.setadapterparms.data.query_cmds_supp.lan_type; + QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); + } card->options.adp.supported_funcs = cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); @@ -2936,7 +2994,8 @@ EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, int ipv, int cast_type) { - if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE)) + if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSX)) return card->qdio.default_out_queue; switch (card->qdio.no_out_queues) { case 4: @@ -3498,13 +3557,14 @@ int qeth_set_access_ctrl_online(struct qeth_card *card) QETH_DBF_TEXT(TRACE, 4, "setactlo"); - if (card->info.type == QETH_CARD_TYPE_OSAE && - qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { + if ((card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSX) && + qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { rc = qeth_setadpparms_set_access_ctrl(card, card->options.isolation); if (rc) { QETH_DBF_MESSAGE(3, - "IPA(SET_ACCESS_CTRL,%s,%d) sent failed", + "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", card->gdev->dev.kobj.name, rc); } @@ -3810,10 +3870,18 @@ static int qeth_qdio_establish(struct qeth_card *card) if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { - rc = qdio_initialize(&init_data); - if (rc) + rc = qdio_allocate(&init_data); + if (rc) { + atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); + goto out; + } + rc = qdio_establish(&init_data); + if (rc) { atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); + qdio_free(CARD_DDEV(card)); + } } +out: kfree(out_sbal_ptrs); kfree(in_sbal_ptrs); kfree(qib_param_field); @@ -3836,9 +3904,16 @@ static void qeth_core_free_card(struct qeth_card *card) } static struct ccw_device_id qeth_ids[] = { - {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE}, - {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD}, - {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), + .driver_info = QETH_CARD_TYPE_OSD}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), + .driver_info = QETH_CARD_TYPE_IQD}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), + .driver_info = QETH_CARD_TYPE_OSN}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), + .driver_info = QETH_CARD_TYPE_OSM}, + {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), + .driver_info = QETH_CARD_TYPE_OSX}, {}, }; MODULE_DEVICE_TABLE(ccw, qeth_ids); @@ -4242,25 +4317,25 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) goto err_card; } - if (card->info.type == QETH_CARD_TYPE_OSN) { + if (card->info.type == QETH_CARD_TYPE_OSN) rc = qeth_core_create_osn_attributes(dev); - if (rc) - goto err_card; + else + rc = qeth_core_create_device_attributes(dev); + if (rc) + goto err_card; + switch (card->info.type) { + case QETH_CARD_TYPE_OSN: + case QETH_CARD_TYPE_OSM: rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); - if (rc) { - qeth_core_remove_osn_attributes(dev); - goto err_card; - } + if (rc) + goto err_attr; rc = card->discipline.ccwgdriver->probe(card->gdev); - if (rc) { - qeth_core_free_discipline(card); - qeth_core_remove_osn_attributes(dev); - goto err_card; - } - } else { - rc = qeth_core_create_device_attributes(dev); if (rc) - goto err_card; + goto err_disc; + case QETH_CARD_TYPE_OSD: + case QETH_CARD_TYPE_OSX: + default: + break; } write_lock_irqsave(&qeth_core_card_list.rwlock, flags); @@ -4270,6 +4345,13 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) qeth_determine_capabilities(card); return 0; +err_disc: + qeth_core_free_discipline(card); +err_attr: + if (card->info.type == QETH_CARD_TYPE_OSN) + qeth_core_remove_osn_attributes(dev); + else + qeth_core_remove_device_attributes(dev); err_card: qeth_core_free_card(card); err_dev: diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index 104a3351e02b..f9ed24de7514 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -48,9 +48,11 @@ extern unsigned char IPA_PDU_HEADER[]; enum qeth_card_types { QETH_CARD_TYPE_UNKNOWN = 0, - QETH_CARD_TYPE_OSAE = 10, - QETH_CARD_TYPE_IQD = 1234, - QETH_CARD_TYPE_OSN = 11, + QETH_CARD_TYPE_OSD = 1, + QETH_CARD_TYPE_IQD = 5, + QETH_CARD_TYPE_OSN = 6, + QETH_CARD_TYPE_OSM = 3, + QETH_CARD_TYPE_OSX = 2, }; #define QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE 0x18 @@ -614,6 +616,8 @@ extern unsigned char IDX_ACTIVATE_WRITE[]; #define QETH_IS_IDX_ACT_POS_REPLY(buffer) (((buffer)[0x08] & 3) == 2) #define QETH_IDX_REPLY_LEVEL(buffer) (buffer + 0x12) #define QETH_IDX_ACT_CAUSE_CODE(buffer) (buffer)[0x09] +#define QETH_IDX_ACT_ERR_EXCL 0x19 +#define QETH_IDX_ACT_ERR_AUTH 0x1E #define PDU_ENCAPSULATION(buffer) \ (buffer + *(buffer + (*(buffer + 0x0b)) + \ diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c index 25dfd5abd19b..2eb022ff2610 100644 --- a/drivers/s390/net/qeth_core_sys.c +++ b/drivers/s390/net/qeth_core_sys.c @@ -122,23 +122,32 @@ static ssize_t qeth_dev_portno_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); char *tmp; unsigned int portno, limit; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } portno = simple_strtoul(buf, &tmp, 16); - if (portno > QETH_MAX_PORTNO) - return -EINVAL; + if (portno > QETH_MAX_PORTNO) { + rc = -EINVAL; + goto out; + } limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt); - if (portno > limit) - return -EINVAL; - + if (portno > limit) { + rc = -EINVAL; + goto out; + } card->info.portno = portno; - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store); @@ -165,18 +174,23 @@ static ssize_t qeth_dev_portname_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } tmp = strsep((char **) &buf, "\n"); - if ((strlen(tmp) > 8) || (strlen(tmp) == 0)) - return -EINVAL; + if ((strlen(tmp) > 8) || (strlen(tmp) == 0)) { + rc = -EINVAL; + goto out; + } card->info.portname[0] = strlen(tmp); /* for beauty reasons */ @@ -184,8 +198,9 @@ static ssize_t qeth_dev_portname_store(struct device *dev, card->info.portname[i] = ' '; strcpy(card->info.portname + 1, tmp); ASCEBC(card->info.portname + 1, 8); - - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show, @@ -215,20 +230,25 @@ static ssize_t qeth_dev_prioqing_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } /* check if 1920 devices are supported , * if though we have to permit priority queueing */ if (card->qdio.no_out_queues == 1) { card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; - return -EPERM; + rc = -EPERM; + goto out; } tmp = strsep((char **) &buf, "\n"); @@ -251,10 +271,11 @@ static ssize_t qeth_dev_prioqing_store(struct device *dev, } else if (!strcmp(tmp, "no_prio_queueing")) { card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show, @@ -277,14 +298,17 @@ static ssize_t qeth_dev_bufcnt_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); char *tmp; int cnt, old_cnt; - int rc; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } old_cnt = card->qdio.in_buf_pool.buf_count; cnt = simple_strtoul(buf, &tmp, 10); @@ -293,7 +317,9 @@ static ssize_t qeth_dev_bufcnt_store(struct device *dev, if (old_cnt != cnt) { rc = qeth_realloc_buffer_pool(card, cnt); } - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show, @@ -337,25 +363,27 @@ static ssize_t qeth_dev_performance_stats_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); i = simple_strtoul(buf, &tmp, 16); if ((i == 0) || (i == 1)) { if (i == card->options.performance_stats) - return count; + goto out;; card->options.performance_stats = i; if (i == 0) memset(&card->perf_stats, 0, sizeof(struct qeth_perf_stats)); card->perf_stats.initial_rx_packets = card->stats.rx_packets; card->perf_stats.initial_tx_packets = card->stats.tx_packets; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show, @@ -377,15 +405,17 @@ static ssize_t qeth_dev_layer2_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i, rc; + int i, rc = 0; enum qeth_discipline_id newdis; if (!card) return -EINVAL; - if (((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER))) - return -EPERM; + mutex_lock(&card->conf_mutex); + if (card->state != CARD_STATE_DOWN) { + rc = -EPERM; + goto out; + } i = simple_strtoul(buf, &tmp, 16); switch (i) { @@ -396,12 +426,13 @@ static ssize_t qeth_dev_layer2_store(struct device *dev, newdis = QETH_DISCIPLINE_LAYER2; break; default: - return -EINVAL; + rc = -EINVAL; + goto out; } - if (card->options.layer2 == newdis) { - return count; - } else { + if (card->options.layer2 == newdis) + goto out; + else { if (card->discipline.ccwgdriver) { card->discipline.ccwgdriver->remove(card->gdev); qeth_core_free_discipline(card); @@ -410,12 +441,12 @@ static ssize_t qeth_dev_layer2_store(struct device *dev, rc = qeth_core_load_discipline(card, newdis); if (rc) - return rc; + goto out; rc = card->discipline.ccwgdriver->probe(card->gdev); - if (rc) - return rc; - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show, @@ -454,13 +485,13 @@ static ssize_t qeth_dev_isolation_store(struct device *dev, char *tmp, *curtoken; curtoken = (char *) buf; - if (!card) { - rc = -EINVAL; - goto out; - } + if (!card) + return -EINVAL; + mutex_lock(&card->conf_mutex); /* check for unknown, too, in case we do not yet know who we are */ - if (card->info.type != QETH_CARD_TYPE_OSAE && + if (card->info.type != QETH_CARD_TYPE_OSD && + card->info.type != QETH_CARD_TYPE_OSX && card->info.type != QETH_CARD_TYPE_UNKNOWN) { rc = -EOPNOTSUPP; dev_err(&card->gdev->dev, "Adapter does not " @@ -491,6 +522,7 @@ static ssize_t qeth_dev_isolation_store(struct device *dev, rc = ipa_rc; } out: + mutex_unlock(&card->conf_mutex); return rc; } @@ -510,22 +542,25 @@ static ssize_t qeth_dev_blkt_store(struct qeth_card *card, const char *buf, size_t count, int *value, int max_value) { char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; - + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } i = simple_strtoul(buf, &tmp, 10); - if (i <= max_value) { + if (i <= max_value) *value = i; - } else { - return -EINVAL; - } - return count; + else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_dev_blkt_total_show(struct device *dev, diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 6a801dc3bf8e..d43f57a4ac66 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -56,7 +56,9 @@ static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); break; case SIOC_QETH_GET_CARD_TYPE: - if ((card->info.type == QETH_CARD_TYPE_OSAE) && + if ((card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSM || + card->info.type == QETH_CARD_TYPE_OSX) && !card->info.guestlan) return 1; return 0; @@ -309,6 +311,10 @@ static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) struct qeth_vlan_vid *id; QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); + if (card->info.type == QETH_CARD_TYPE_OSM) { + QETH_DBF_TEXT(TRACE, 3, "aidOSM"); + return; + } if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { QETH_DBF_TEXT(TRACE, 3, "aidREC"); return; @@ -329,6 +335,10 @@ static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); + if (card->info.type == QETH_CARD_TYPE_OSM) { + QETH_DBF_TEXT(TRACE, 3, "kidOSM"); + return; + } if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { QETH_DBF_TEXT(TRACE, 3, "kidREC"); return; @@ -559,8 +569,10 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card) "device %s: x%x\n", CARD_BUS_ID(card), rc); } - if ((card->info.type == QETH_CARD_TYPE_IQD) || - (card->info.guestlan)) { + if (card->info.type == QETH_CARD_TYPE_IQD || + card->info.type == QETH_CARD_TYPE_OSM || + card->info.type == QETH_CARD_TYPE_OSX || + card->info.guestlan) { rc = qeth_setadpparms_change_macaddr(card); if (rc) { QETH_DBF_MESSAGE(2, "couldn't get MAC address on " @@ -589,8 +601,10 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p) return -EOPNOTSUPP; } - if (card->info.type == QETH_CARD_TYPE_OSN) { - QETH_DBF_TEXT(TRACE, 3, "setmcOSN"); + if (card->info.type == QETH_CARD_TYPE_OSN || + card->info.type == QETH_CARD_TYPE_OSM || + card->info.type == QETH_CARD_TYPE_OSX) { + QETH_DBF_TEXT(TRACE, 3, "setmcTYP"); return -EOPNOTSUPP; } QETH_DBF_TEXT_(TRACE, 3, "%s", CARD_BUS_ID(card)); @@ -608,7 +622,6 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p) static void qeth_l2_set_multicast_list(struct net_device *dev) { struct qeth_card *card = dev->ml_priv; - struct dev_addr_list *dm; struct netdev_hw_addr *ha; if (card->info.type == QETH_CARD_TYPE_OSN) @@ -620,8 +633,8 @@ static void qeth_l2_set_multicast_list(struct net_device *dev) return; qeth_l2_del_all_mc(card); spin_lock_bh(&card->mclock); - for (dm = dev->mc_list; dm; dm = dm->next) - qeth_l2_add_mc(card, dm->da_addr, 0); + netdev_for_each_mc_addr(ha, dev) + qeth_l2_add_mc(card, ha->addr, 0); netdev_for_each_uc_addr(ha, dev) qeth_l2_add_mc(card, ha->addr, 1); @@ -886,9 +899,6 @@ static const struct net_device_ops qeth_l2_netdev_ops = { static int qeth_l2_setup_netdev(struct qeth_card *card) { switch (card->info.type) { - case QETH_CARD_TYPE_OSAE: - card->dev = alloc_etherdev(0); - break; case QETH_CARD_TYPE_IQD: card->dev = alloc_netdev(0, "hsi%d", ether_setup); break; @@ -925,6 +935,7 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) enum qeth_card_states recover_flag; BUG_ON(!card); + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 2, "setonlin"); QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); @@ -957,18 +968,21 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) dev_warn(&card->gdev->dev, "The LAN is offline\n"); card->lan_online = 0; - return 0; + goto out; } rc = -ENODEV; goto out_remove; } else card->lan_online = 1; - if (card->info.type != QETH_CARD_TYPE_OSN) { + if ((card->info.type == QETH_CARD_TYPE_OSD) || + (card->info.type == QETH_CARD_TYPE_OSX)) /* configure isolation level */ qeth_set_access_ctrl_online(card); + + if (card->info.type != QETH_CARD_TYPE_OSN && + card->info.type != QETH_CARD_TYPE_OSM) qeth_l2_process_vlans(card, 0); - } netif_tx_disable(card->dev); @@ -996,6 +1010,8 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) } /* let user_space know that device is online */ kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); +out: + mutex_unlock(&card->conf_mutex); return 0; out_remove: @@ -1008,6 +1024,7 @@ out_remove: card->state = CARD_STATE_RECOVER; else card->state = CARD_STATE_DOWN; + mutex_unlock(&card->conf_mutex); return rc; } @@ -1023,6 +1040,7 @@ static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, int rc = 0, rc2 = 0, rc3 = 0; enum qeth_card_states recover_flag; + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 3, "setoffl"); QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); @@ -1041,6 +1059,7 @@ static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, card->state = CARD_STATE_RECOVER; /* let user_space know that device is offline */ kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); + mutex_unlock(&card->conf_mutex); return 0; } diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index fc6ca1da8b98..61adae21a464 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -54,16 +54,16 @@ int qeth_l3_set_large_send(struct qeth_card *card, if (card->options.large_send == QETH_LARGE_SEND_TSO) { if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { card->dev->features |= NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM; + NETIF_F_IP_CSUM; } else { card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM); + NETIF_F_IP_CSUM); card->options.large_send = QETH_LARGE_SEND_NO; rc = -EOPNOTSUPP; } } else { card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | - NETIF_F_HW_CSUM); + NETIF_F_IP_CSUM); card->options.large_send = QETH_LARGE_SEND_NO; } return rc; @@ -1108,6 +1108,13 @@ static int qeth_l3_default_setassparms_cb(struct qeth_card *card, card->info.csum_mask = cmd->data.setassparms.data.flags_32bit; QETH_DBF_TEXT_(TRACE, 3, "csum:%d", card->info.csum_mask); } + if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM && + cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { + card->info.tx_csum_mask = + cmd->data.setassparms.data.flags_32bit; + QETH_DBF_TEXT_(TRACE, 3, "tcsu:%d", card->info.tx_csum_mask); + } + return 0; } @@ -1536,6 +1543,28 @@ static int qeth_l3_start_ipa_checksum(struct qeth_card *card) return rc; } +static int qeth_l3_start_ipa_tx_checksum(struct qeth_card *card) +{ + int rc = 0; + + if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) + return rc; + rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM, + IPA_CMD_ASS_START, 0); + if (rc) + goto err_out; + rc = qeth_l3_send_simple_setassparms(card, IPA_OUTBOUND_CHECKSUM, + IPA_CMD_ASS_ENABLE, card->info.tx_csum_mask); + if (rc) + goto err_out; + dev_info(&card->gdev->dev, "HW TX Checksumming enabled\n"); + return rc; +err_out: + dev_warn(&card->gdev->dev, "Enabling HW TX checksumming for %s " + "failed, using SW TX checksumming\n", QETH_CARD_IFNAME(card)); + return rc; +} + static int qeth_l3_start_ipa_tso(struct qeth_card *card) { int rc; @@ -1578,6 +1607,7 @@ static int qeth_l3_start_ipassists(struct qeth_card *card) qeth_l3_start_ipa_ipv6(card); /* go on*/ qeth_l3_start_ipa_broadcast(card); /* go on*/ qeth_l3_start_ipa_checksum(card); /* go on*/ + qeth_l3_start_ipa_tx_checksum(card); qeth_l3_start_ipa_tso(card); /* go on*/ return 0; } @@ -1929,7 +1959,7 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card, in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid)); if (!in6_dev) return; - for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next) { + list_for_each_entry(ifa, &in6_dev->addr_list, if_list) { addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); if (addr) { memcpy(&addr->u.a6.addr, &ifa->addr, @@ -2681,7 +2711,8 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); break; case SIOC_QETH_GET_CARD_TYPE: - if ((card->info.type == QETH_CARD_TYPE_OSAE) && + if ((card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSX) && !card->info.guestlan) return 1; return 0; @@ -2817,6 +2848,21 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, } } +static inline void qeth_l3_hdr_csum(struct qeth_card *card, + struct qeth_hdr *hdr, struct sk_buff *skb) +{ + struct iphdr *iph = ip_hdr(skb); + + /* tcph->check contains already the pseudo hdr checksum + * so just set the header flags + */ + if (iph->protocol == IPPROTO_UDP) + hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_UDP; + hdr->hdr.l3.ext_flags |= QETH_HDR_EXT_CSUM_TRANSP_REQ; + if (card->options.performance_stats) + card->perf_stats.tx_csum++; +} + static void qeth_tso_fill_header(struct qeth_card *card, struct qeth_hdr *qhdr, struct sk_buff *skb) { @@ -2852,21 +2898,6 @@ static void qeth_tso_fill_header(struct qeth_card *card, } } -static void qeth_tx_csum(struct sk_buff *skb) -{ - __wsum csum; - int offset; - - skb_set_transport_header(skb, skb->csum_start - skb_headroom(skb)); - offset = skb->csum_start - skb_headroom(skb); - BUG_ON(offset >= skb_headlen(skb)); - csum = skb_checksum(skb, offset, skb->len - offset, 0); - - offset += skb->csum_offset; - BUG_ON(offset + sizeof(__sum16) > skb_headlen(skb)); - *(__sum16 *)(skb->data + offset) = csum_fold(csum); -} - static inline int qeth_l3_tso_elements(struct sk_buff *skb) { unsigned long tcpd = (unsigned long)tcp_hdr(skb) + @@ -2923,12 +2954,6 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) if (skb_is_gso(skb)) large_send = card->options.large_send; - else - if (skb->ip_summed == CHECKSUM_PARTIAL) { - qeth_tx_csum(skb); - if (card->options.performance_stats) - card->perf_stats.tx_csum++; - } if ((card->info.type == QETH_CARD_TYPE_IQD) && (!large_send) && (skb_shinfo(skb)->nr_frags == 0)) { @@ -3007,6 +3032,9 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) cast_type); hdr->hdr.l3.length = new_skb->len - data_offset; } + + if (skb->ip_summed == CHECKSUM_PARTIAL) + qeth_l3_hdr_csum(card, hdr, new_skb); } elems = qeth_get_elements_no(card, (void *)hdr, new_skb, @@ -3132,10 +3160,25 @@ static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data) return rc; } +static int qeth_l3_ethtool_set_tx_csum(struct net_device *dev, u32 data) +{ + struct qeth_card *card = dev->ml_priv; + + if (data) { + if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) + dev->features |= NETIF_F_IP_CSUM; + else + return -EPERM; + } else + dev->features &= ~NETIF_F_IP_CSUM; + + return 0; +} + static const struct ethtool_ops qeth_l3_ethtool_ops = { .get_link = ethtool_op_get_link, .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = ethtool_op_set_tx_hw_csum, + .set_tx_csum = qeth_l3_ethtool_set_tx_csum, .get_rx_csum = qeth_l3_ethtool_get_rx_csum, .set_rx_csum = qeth_l3_ethtool_set_rx_csum, .get_sg = ethtool_op_get_sg, @@ -3206,7 +3249,8 @@ static const struct net_device_ops qeth_l3_osa_netdev_ops = { static int qeth_l3_setup_netdev(struct qeth_card *card) { - if (card->info.type == QETH_CARD_TYPE_OSAE) { + if (card->info.type == QETH_CARD_TYPE_OSD || + card->info.type == QETH_CARD_TYPE_OSX) { if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || (card->info.link_type == QETH_LINK_TYPE_HSTR)) { #ifdef CONFIG_TR @@ -3336,6 +3380,7 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) enum qeth_card_states recover_flag; BUG_ON(!card); + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 2, "setonlin"); QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); @@ -3367,7 +3412,7 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) dev_warn(&card->gdev->dev, "The LAN is offline\n"); card->lan_online = 0; - return 0; + goto out; } rc = -ENODEV; goto out_remove; @@ -3414,6 +3459,8 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) } /* let user_space know that device is online */ kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); +out: + mutex_unlock(&card->conf_mutex); return 0; out_remove: card->use_hard_stop = 1; @@ -3425,6 +3472,7 @@ out_remove: card->state = CARD_STATE_RECOVER; else card->state = CARD_STATE_DOWN; + mutex_unlock(&card->conf_mutex); return rc; } @@ -3440,6 +3488,7 @@ static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev, int rc = 0, rc2 = 0, rc3 = 0; enum qeth_card_states recover_flag; + mutex_lock(&card->conf_mutex); QETH_DBF_TEXT(SETUP, 3, "setoffl"); QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); @@ -3458,6 +3507,7 @@ static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev, card->state = CARD_STATE_RECOVER; /* let user_space know that device is offline */ kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); + mutex_unlock(&card->conf_mutex); return 0; } diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index 25b3e7aae44f..fb5318b30e99 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -70,10 +70,10 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, { enum qeth_routing_types old_route_type = route->type; char *tmp; - int rc; + int rc = 0; tmp = strsep((char **) &buf, "\n"); - + mutex_lock(&card->conf_mutex); if (!strcmp(tmp, "no_router")) { route->type = NO_ROUTER; } else if (!strcmp(tmp, "primary_connector")) { @@ -87,7 +87,8 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, } else if (!strcmp(tmp, "multicast_router")) { route->type = MULTICAST_ROUTER; } else { - return -EINVAL; + rc = -EINVAL; + goto out; } if (((card->state == CARD_STATE_SOFTSETUP) || (card->state == CARD_STATE_UP)) && @@ -97,7 +98,9 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, else if (prot == QETH_PROT_IPV6) rc = qeth_l3_setrouting_v6(card); } - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_route4_store(struct device *dev, @@ -157,22 +160,26 @@ static ssize_t qeth_l3_dev_fake_broadcast_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } i = simple_strtoul(buf, &tmp, 16); if ((i == 0) || (i == 1)) card->options.fake_broadcast = i; - else { - return -EINVAL; - } - return count; + else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show, @@ -200,31 +207,35 @@ static ssize_t qeth_l3_dev_broadcast_mode_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) { - return -EINVAL; + rc = -EINVAL; + goto out; } tmp = strsep((char **) &buf, "\n"); - if (!strcmp(tmp, "local")) { + if (!strcmp(tmp, "local")) card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL; - return count; - } else if (!strcmp(tmp, "all_rings")) { + else if (!strcmp(tmp, "all_rings")) card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; - return count; - } else { - return -EINVAL; - } - return count; + else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(broadcast_mode, 0644, qeth_l3_dev_broadcast_mode_show, @@ -251,18 +262,22 @@ static ssize_t qeth_l3_dev_canonical_macaddr_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; - int i; + int i, rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) || (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) { - return -EINVAL; + rc = -EINVAL; + goto out; } i = simple_strtoul(buf, &tmp, 16); @@ -270,10 +285,11 @@ static ssize_t qeth_l3_dev_canonical_macaddr_store(struct device *dev, card->options.macaddr_mode = i? QETH_TR_MACADDR_CANONICAL : QETH_TR_MACADDR_NONCANONICAL; - else { - return -EINVAL; - } - return count; + else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(canonical_macaddr, 0644, qeth_l3_dev_canonical_macaddr_show, @@ -297,11 +313,12 @@ static ssize_t qeth_l3_dev_checksum_store(struct device *dev, struct qeth_card *card = dev_get_drvdata(dev); enum qeth_checksum_types csum_type; char *tmp; - int rc; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "sw_checksumming")) csum_type = SW_CHECKSUMMING; @@ -309,13 +326,15 @@ static ssize_t qeth_l3_dev_checksum_store(struct device *dev, csum_type = HW_CHECKSUMMING; else if (!strcmp(tmp, "no_checksumming")) csum_type = NO_CHECKSUMMING; - else - return -EINVAL; + else { + rc = -EINVAL; + goto out; + } rc = qeth_l3_set_rx_csum(card, csum_type); - if (rc) - return rc; - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(checksumming, 0644, qeth_l3_dev_checksum_show, @@ -336,7 +355,7 @@ static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct qeth_card *card = dev_get_drvdata(dev); - int ret; + int rc = 0; unsigned long i; if (!card) @@ -345,19 +364,24 @@ static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, if (card->info.type != QETH_CARD_TYPE_IQD) return -EPERM; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } - ret = strict_strtoul(buf, 16, &i); - if (ret) - return -EINVAL; + rc = strict_strtoul(buf, 16, &i); + if (rc) { + rc = -EINVAL; + goto out; + } switch (i) { case 0: card->options.sniffer = i; break; case 1: - ret = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); + qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); if (card->ssqd.qdioac2 & QETH_SNIFF_AVAIL) { card->options.sniffer = i; if (card->qdio.init_pool.buf_count != @@ -366,11 +390,13 @@ static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, QETH_IN_BUF_COUNT_MAX); break; } else - return -EPERM; + rc = -EPERM; default: /* fall through */ - return -EINVAL; + rc = -EINVAL; } - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(sniffer, 0644, qeth_l3_dev_sniffer_show, @@ -412,12 +438,11 @@ static ssize_t qeth_l3_dev_large_send_store(struct device *dev, else return -EINVAL; - if (card->options.large_send == type) - return count; - rc = qeth_l3_set_large_send(card, type); - if (rc) - return rc; - return count; + mutex_lock(&card->conf_mutex); + if (card->options.large_send != type) + rc = qeth_l3_set_large_send(card, type); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static DEVICE_ATTR(large_send, 0644, qeth_l3_dev_large_send_show, @@ -455,13 +480,17 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); if ((card->state != CARD_STATE_DOWN) && - (card->state != CARD_STATE_RECOVER)) - return -EPERM; + (card->state != CARD_STATE_RECOVER)) { + rc = -EPERM; + goto out; + } tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")) { @@ -470,10 +499,11 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev, card->ipato.enabled = 1; } else if (!strcmp(tmp, "0")) { card->ipato.enabled = 0; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static QETH_DEVICE_ATTR(ipato_enable, enable, 0644, @@ -497,10 +527,12 @@ static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")) { card->ipato.invert4 = (card->ipato.invert4)? 0 : 1; @@ -508,10 +540,10 @@ static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev, card->ipato.invert4 = 1; } else if (!strcmp(tmp, "0")) { card->ipato.invert4 = 0; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644, @@ -593,27 +625,28 @@ static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count, struct qeth_ipato_entry *ipatoe; u8 addr[16]; int mask_bits; - int rc; + int rc = 0; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits); if (rc) - return rc; + goto out; ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL); if (!ipatoe) { - return -ENOMEM; + rc = -ENOMEM; + goto out; } ipatoe->proto = proto; memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16); ipatoe->mask_bits = mask_bits; rc = qeth_l3_add_ipato_entry(card, ipatoe); - if (rc) { + if (rc) kfree(ipatoe); - return rc; - } - - return count; +out: + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_ipato_add4_store(struct device *dev, @@ -636,15 +669,14 @@ static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count, { u8 addr[16]; int mask_bits; - int rc; + int rc = 0; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits); - if (rc) - return rc; - - qeth_l3_del_ipato_entry(card, proto, addr, mask_bits); - - return count; + if (!rc) + qeth_l3_del_ipato_entry(card, proto, addr, mask_bits); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_ipato_del4_store(struct device *dev, @@ -677,10 +709,12 @@ static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev, { struct qeth_card *card = dev_get_drvdata(dev); char *tmp; + int rc = 0; if (!card) return -EINVAL; + mutex_lock(&card->conf_mutex); tmp = strsep((char **) &buf, "\n"); if (!strcmp(tmp, "toggle")) { card->ipato.invert6 = (card->ipato.invert6)? 0 : 1; @@ -688,10 +722,10 @@ static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev, card->ipato.invert6 = 1; } else if (!strcmp(tmp, "0")) { card->ipato.invert6 = 0; - } else { - return -EINVAL; - } - return count; + } else + rc = -EINVAL; + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644, @@ -813,15 +847,12 @@ static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count, u8 addr[16] = {0, }; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_vipae(buf, proto, addr); - if (rc) - return rc; - - rc = qeth_l3_add_vipa(card, proto, addr); - if (rc) - return rc; - - return count; + if (!rc) + rc = qeth_l3_add_vipa(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev, @@ -845,13 +876,12 @@ static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count, u8 addr[16]; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_vipae(buf, proto, addr); - if (rc) - return rc; - - qeth_l3_del_vipa(card, proto, addr); - - return count; + if (!rc) + qeth_l3_del_vipa(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev, @@ -979,15 +1009,12 @@ static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count, u8 addr[16] = {0, }; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_rxipe(buf, proto, addr); - if (rc) - return rc; - - rc = qeth_l3_add_rxip(card, proto, addr); - if (rc) - return rc; - - return count; + if (!rc) + rc = qeth_l3_add_rxip(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev, @@ -1011,13 +1038,12 @@ static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count, u8 addr[16]; int rc; + mutex_lock(&card->conf_mutex); rc = qeth_l3_parse_rxipe(buf, proto, addr); - if (rc) - return rc; - - qeth_l3_del_rxip(card, proto, addr); - - return count; + if (!rc) + qeth_l3_del_rxip(card, proto, addr); + mutex_unlock(&card->conf_mutex); + return rc ? rc : count; } static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev, diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 1e6183a86ce5..e331df2122f7 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -425,7 +425,8 @@ int zfcp_status_read_refill(struct zfcp_adapter *adapter) { while (atomic_read(&adapter->stat_miss) > 0) if (zfcp_fsf_status_read(adapter->qdio)) { - if (atomic_read(&adapter->stat_miss) >= 16) { + if (atomic_read(&adapter->stat_miss) >= + adapter->stat_read_buf_num) { zfcp_erp_adapter_reopen(adapter, 0, "axsref1", NULL); return 1; @@ -545,6 +546,10 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device) &zfcp_sysfs_adapter_attrs)) goto failed; + /* report size limit per scatter-gather segment */ + adapter->dma_parms.max_segment_size = ZFCP_QDIO_SBALE_LEN; + adapter->ccw_device->dev.dma_parms = &adapter->dma_parms; + if (!zfcp_adapter_scsi_register(adapter)) return adapter; diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c index 25d9e0ae9c57..1a2db0a35737 100644 --- a/drivers/s390/scsi/zfcp_cfdc.c +++ b/drivers/s390/scsi/zfcp_cfdc.c @@ -254,6 +254,7 @@ static long zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command, } static const struct file_operations zfcp_cfdc_fops = { + .open = nonseekable_open, .unlocked_ioctl = zfcp_cfdc_dev_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = zfcp_cfdc_dev_ioctl diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 7131c7db1f04..9fa1b064893e 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -44,23 +44,6 @@ struct zfcp_reqlist; /********************* SCSI SPECIFIC DEFINES *********************************/ #define ZFCP_SCSI_ER_TIMEOUT (10*HZ) -/********************* CIO/QDIO SPECIFIC DEFINES *****************************/ - -/* DMQ bug workaround: don't use last SBALE */ -#define ZFCP_MAX_SBALES_PER_SBAL (QDIO_MAX_ELEMENTS_PER_BUFFER - 1) - -/* index of last SBALE (with respect to DMQ bug workaround) */ -#define ZFCP_LAST_SBALE_PER_SBAL (ZFCP_MAX_SBALES_PER_SBAL - 1) - -/* max. number of (data buffer) SBALEs in largest SBAL chain */ -#define ZFCP_MAX_SBALES_PER_REQ \ - (FSF_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2) - /* request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */ - -#define ZFCP_MAX_SECTORS (ZFCP_MAX_SBALES_PER_REQ * 8) - /* max. number of (data buffer) SBALEs in largest SBAL chain - multiplied with number of sectors per 4k block */ - /********************* FSF SPECIFIC DEFINES *********************************/ /* ATTENTION: value must not be used by hardware */ @@ -181,6 +164,7 @@ struct zfcp_adapter { stack abort/command completion races */ atomic_t stat_miss; /* # missing status reads*/ + unsigned int stat_read_buf_num; struct work_struct stat_work; atomic_t status; /* status of this adapter */ struct list_head erp_ready_head; /* error recovery for this @@ -205,6 +189,7 @@ struct zfcp_adapter { struct work_struct scan_work; struct service_level service_level; struct workqueue_struct *work_queue; + struct device_dma_parameters dma_parms; }; struct zfcp_port { diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 0be5e7ea2828..e3dbeda97179 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -714,7 +714,7 @@ static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *act) if (zfcp_erp_adapter_strategy_open_fsf_xport(act) == ZFCP_ERP_FAILED) return ZFCP_ERP_FAILED; - atomic_set(&act->adapter->stat_miss, 16); + atomic_set(&act->adapter->stat_miss, act->adapter->stat_read_buf_num); if (zfcp_status_read_refill(act->adapter)) return ZFCP_ERP_FAILED; diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index 8786a79c7f8f..48a8f93b72f5 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -3,7 +3,7 @@ * * External function declarations. * - * Copyright IBM Corporation 2002, 2009 + * Copyright IBM Corporation 2002, 2010 */ #ifndef ZFCP_EXT_H @@ -143,9 +143,9 @@ extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int); /* zfcp_qdio.c */ extern int zfcp_qdio_setup(struct zfcp_adapter *); extern void zfcp_qdio_destroy(struct zfcp_qdio *); +extern int zfcp_qdio_sbal_get(struct zfcp_qdio *); extern int zfcp_qdio_send(struct zfcp_qdio *, struct zfcp_qdio_req *); -extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, - struct zfcp_qdio_req *, unsigned long, +extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, struct zfcp_qdio_req *, struct scatterlist *, int); extern int zfcp_qdio_open(struct zfcp_qdio *); extern void zfcp_qdio_close(struct zfcp_qdio *); diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index 2a1cbb74b99b..6f8ab43a4856 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -400,7 +400,7 @@ static int zfcp_fc_adisc(struct zfcp_port *port) struct zfcp_adapter *adapter = port->adapter; int ret; - adisc = kmem_cache_alloc(zfcp_data.adisc_cache, GFP_ATOMIC); + adisc = kmem_cache_zalloc(zfcp_data.adisc_cache, GFP_ATOMIC); if (!adisc) return -ENOMEM; @@ -493,7 +493,7 @@ static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num) if (!gpn_ft) return NULL; - req = kmem_cache_alloc(zfcp_data.gpn_ft_cache, GFP_KERNEL); + req = kmem_cache_zalloc(zfcp_data.gpn_ft_cache, GFP_KERNEL); if (!req) { kfree(gpn_ft); gpn_ft = NULL; diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index b3b1d2f79398..9ac6a6e4a604 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -496,6 +496,7 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) adapter->hydra_version = bottom->adapter_type; adapter->timer_ticks = bottom->timer_interval; + adapter->stat_read_buf_num = max(bottom->status_read_buf_num, (u16)16); if (fc_host_permanent_port_name(shost) == -1) fc_host_permanent_port_name(shost) = fc_host_port_name(shost); @@ -640,37 +641,6 @@ static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) } } -static int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio) -{ - struct zfcp_qdio_queue *req_q = &qdio->req_q; - - spin_lock_bh(&qdio->req_q_lock); - if (atomic_read(&req_q->count)) - return 1; - spin_unlock_bh(&qdio->req_q_lock); - return 0; -} - -static int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio) -{ - struct zfcp_adapter *adapter = qdio->adapter; - long ret; - - spin_unlock_bh(&qdio->req_q_lock); - ret = wait_event_interruptible_timeout(qdio->req_q_wq, - zfcp_fsf_sbal_check(qdio), 5 * HZ); - if (ret > 0) - return 0; - if (!ret) { - atomic_inc(&qdio->req_q_full); - /* assume hanging outbound queue, try queue recovery */ - zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); - } - - spin_lock_bh(&qdio->req_q_lock); - return -EIO; -} - static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) { struct zfcp_fsf_req *req; @@ -705,10 +675,9 @@ static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) } static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, - u32 fsf_cmd, mempool_t *pool) + u32 fsf_cmd, u32 sbtype, + mempool_t *pool) { - struct qdio_buffer_element *sbale; - struct zfcp_qdio_queue *req_q = &qdio->req_q; struct zfcp_adapter *adapter = qdio->adapter; struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); @@ -725,14 +694,6 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, req->adapter = adapter; req->fsf_command = fsf_cmd; req->req_id = adapter->req_no; - req->qdio_req.sbal_number = 1; - req->qdio_req.sbal_first = req_q->first; - req->qdio_req.sbal_last = req_q->first; - req->qdio_req.sbale_curr = 1; - - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].addr = (void *) req->req_id; - sbale[0].flags |= SBAL_FLAGS0_COMMAND; if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { if (likely(pool)) @@ -753,10 +714,11 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; req->qtcb->header.req_handle = req->req_id; req->qtcb->header.fsf_command = req->fsf_command; - sbale[1].addr = (void *) req->qtcb; - sbale[1].length = sizeof(struct fsf_qtcb); } + zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, + req->qtcb, sizeof(struct fsf_qtcb)); + if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { zfcp_fsf_req_free(req); return ERR_PTR(-EIO); @@ -803,24 +765,19 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio) struct zfcp_adapter *adapter = qdio->adapter; struct zfcp_fsf_req *req; struct fsf_status_read_buffer *sr_buf; - struct qdio_buffer_element *sbale; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; - req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, + req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, adapter->pool.status_read_req); if (IS_ERR(req)) { retval = PTR_ERR(req); goto out; } - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; - req->qdio_req.sbale_curr = 2; - sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); if (!sr_buf) { retval = -ENOMEM; @@ -828,9 +785,9 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio) } memset(sr_buf, 0, sizeof(*sr_buf)); req->data = sr_buf; - sbale = zfcp_qdio_sbale_curr(qdio, &req->qdio_req); - sbale->addr = (void *) sr_buf; - sbale->length = sizeof(*sr_buf); + + zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); retval = zfcp_fsf_req_send(req); if (retval) @@ -907,14 +864,14 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, struct zfcp_unit *unit) { - struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req = NULL; struct zfcp_qdio *qdio = unit->port->adapter->qdio; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.scsi_abort); if (IS_ERR(req)) { req = NULL; @@ -925,9 +882,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, ZFCP_STATUS_COMMON_UNBLOCKED))) goto out_error_free; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->data = unit; req->handler = zfcp_fsf_abort_fcp_command_handler; @@ -996,21 +951,14 @@ skip_fsfstatus: ct->handler(ct->handler_data); } -static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, +static void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, + struct zfcp_qdio_req *q_req, struct scatterlist *sg_req, struct scatterlist *sg_resp) { - sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; - sbale[2].addr = sg_virt(sg_req); - sbale[2].length = sg_req->length; - sbale[3].addr = sg_virt(sg_resp); - sbale[3].length = sg_resp->length; - sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; -} - -static int zfcp_fsf_one_sbal(struct scatterlist *sg) -{ - return sg_is_last(sg) && sg->length <= PAGE_SIZE; + zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); + zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); + zfcp_qdio_set_sbale_last(qdio, q_req); } static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, @@ -1019,35 +967,34 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, int max_sbals) { struct zfcp_adapter *adapter = req->adapter; - struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio, - &req->qdio_req); u32 feat = adapter->adapter_features; int bytes; if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { - if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) + if (!zfcp_qdio_sg_one_sbale(sg_req) || + !zfcp_qdio_sg_one_sbale(sg_resp)) return -EOPNOTSUPP; - zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); + zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, + sg_req, sg_resp); return 0; } /* use single, unchained SBAL if it can hold the request */ - if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { - zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); + if (zfcp_qdio_sg_one_sbale(sg_req) || zfcp_qdio_sg_one_sbale(sg_resp)) { + zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, + sg_req, sg_resp); return 0; } bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, - SBAL_FLAGS0_TYPE_WRITE_READ, sg_req, max_sbals); if (bytes <= 0) return -EIO; req->qtcb->bottom.support.req_buf_length = bytes; - req->qdio_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; + zfcp_qdio_skip_to_last_sbale(&req->qdio_req); bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, - SBAL_FLAGS0_TYPE_WRITE_READ, sg_resp, max_sbals); req->qtcb->bottom.support.resp_buf_length = bytes; if (bytes <= 0) @@ -1091,10 +1038,11 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, int ret = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; - req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool); + req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, + SBAL_FLAGS0_TYPE_WRITE_READ, pool); if (IS_ERR(req)) { ret = PTR_ERR(req); @@ -1103,7 +1051,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, - FSF_MAX_SBALS_PER_REQ, timeout); + ZFCP_FSF_MAX_SBALS_PER_REQ, timeout); if (ret) goto failed_send; @@ -1187,10 +1135,11 @@ int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, int ret = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; - req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL); + req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, + SBAL_FLAGS0_TYPE_WRITE_READ, NULL); if (IS_ERR(req)) { ret = PTR_ERR(req); @@ -1224,16 +1173,16 @@ out: int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) { - struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req; struct zfcp_qdio *qdio = erp_action->adapter->qdio; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (IS_ERR(req)) { @@ -1242,9 +1191,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->qtcb->bottom.config.feature_selection = FSF_FEATURE_CFDC | @@ -1269,24 +1216,22 @@ out: int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, struct fsf_qtcb_bottom_config *data) { - struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req = NULL; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out_unlock; - req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL); + req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, + SBAL_FLAGS0_TYPE_READ, NULL); if (IS_ERR(req)) { retval = PTR_ERR(req); goto out_unlock; } - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->handler = zfcp_fsf_exchange_config_data_handler; req->qtcb->bottom.config.feature_selection = @@ -1320,7 +1265,6 @@ out_unlock: int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) { struct zfcp_qdio *qdio = erp_action->adapter->qdio; - struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req; int retval = -EIO; @@ -1328,10 +1272,11 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) return -EOPNOTSUPP; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (IS_ERR(req)) { @@ -1340,9 +1285,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->handler = zfcp_fsf_exchange_port_data_handler; req->erp_action = erp_action; @@ -1368,7 +1311,6 @@ out: int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, struct fsf_qtcb_bottom_port *data) { - struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req = NULL; int retval = -EIO; @@ -1376,10 +1318,11 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, return -EOPNOTSUPP; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out_unlock; - req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL); + req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, + SBAL_FLAGS0_TYPE_READ, NULL); if (IS_ERR(req)) { retval = PTR_ERR(req); @@ -1389,9 +1332,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, if (data) req->data = data; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->handler = zfcp_fsf_exchange_port_data_handler; zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); @@ -1485,17 +1426,17 @@ out: */ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) { - struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = erp_action->adapter->qdio; struct zfcp_port *port = erp_action->port; struct zfcp_fsf_req *req; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (IS_ERR(req)) { @@ -1504,9 +1445,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->handler = zfcp_fsf_open_port_handler; hton24(req->qtcb->bottom.support.d_id, port->d_id); @@ -1556,16 +1495,16 @@ static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) */ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) { - struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = erp_action->adapter->qdio; struct zfcp_fsf_req *req; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (IS_ERR(req)) { @@ -1574,9 +1513,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->handler = zfcp_fsf_close_port_handler; req->data = erp_action->port; @@ -1633,16 +1570,16 @@ out: */ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) { - struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = wka_port->adapter->qdio; struct zfcp_fsf_req *req; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (unlikely(IS_ERR(req))) { @@ -1651,9 +1588,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->handler = zfcp_fsf_open_wka_port_handler; hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); @@ -1688,16 +1623,16 @@ static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) */ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) { - struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = wka_port->adapter->qdio; struct zfcp_fsf_req *req; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (unlikely(IS_ERR(req))) { @@ -1706,9 +1641,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->handler = zfcp_fsf_close_wka_port_handler; req->data = wka_port; @@ -1782,16 +1715,16 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) */ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) { - struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = erp_action->adapter->qdio; struct zfcp_fsf_req *req; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (IS_ERR(req)) { @@ -1800,9 +1733,7 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->data = erp_action->port; req->qtcb->header.port_handle = erp_action->port->handle; @@ -1954,17 +1885,17 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) */ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) { - struct qdio_buffer_element *sbale; struct zfcp_adapter *adapter = erp_action->adapter; struct zfcp_qdio *qdio = adapter->qdio; struct zfcp_fsf_req *req; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, + SBAL_FLAGS0_TYPE_READ, adapter->pool.erp_req); if (IS_ERR(req)) { @@ -1973,9 +1904,7 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->qtcb->header.port_handle = erp_action->port->handle; req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; @@ -2041,16 +1970,16 @@ static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) */ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) { - struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = erp_action->adapter->qdio; struct zfcp_fsf_req *req; int retval = -EIO; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, + SBAL_FLAGS0_TYPE_READ, qdio->adapter->pool.erp_req); if (IS_ERR(req)) { @@ -2059,9 +1988,7 @@ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); req->qtcb->header.port_handle = erp_action->port->handle; req->qtcb->header.lun_handle = erp_action->unit->handle; @@ -2289,8 +2216,11 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, goto out; } + if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) + sbtype = SBAL_FLAGS0_TYPE_WRITE; + req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, - adapter->pool.scsi_req); + sbtype, adapter->pool.scsi_req); if (IS_ERR(req)) { retval = PTR_ERR(req); @@ -2298,7 +2228,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, } req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; - get_device(&unit->dev); req->unit = unit; req->data = scsi_cmnd; req->handler = zfcp_fsf_send_fcp_command_handler; @@ -2323,20 +2252,21 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, break; case DMA_TO_DEVICE: req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; - sbtype = SBAL_FLAGS0_TYPE_WRITE; break; case DMA_BIDIRECTIONAL: goto failed_scsi_cmnd; } + get_device(&unit->dev); + fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); - real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sbtype, + real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, scsi_sglist(scsi_cmnd), - FSF_MAX_SBALS_PER_REQ); + ZFCP_FSF_MAX_SBALS_PER_REQ); if (unlikely(real_bytes < 0)) { - if (req->qdio_req.sbal_number >= FSF_MAX_SBALS_PER_REQ) { + if (req->qdio_req.sbal_number >= ZFCP_FSF_MAX_SBALS_PER_REQ) { dev_err(&adapter->ccw_device->dev, "Oversize data package, unit 0x%016Lx " "on port 0x%016Lx closed\n", @@ -2371,7 +2301,6 @@ out: */ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) { - struct qdio_buffer_element *sbale; struct zfcp_fsf_req *req = NULL; struct fcp_cmnd *fcp_cmnd; struct zfcp_qdio *qdio = unit->port->adapter->qdio; @@ -2381,10 +2310,11 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) return NULL; spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, + SBAL_FLAGS0_TYPE_WRITE, qdio->adapter->pool.scsi_req); if (IS_ERR(req)) { @@ -2401,9 +2331,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) req->qtcb->bottom.io.service_class = FSF_CLASS_3; req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; - sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; + zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); @@ -2432,7 +2360,6 @@ static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, struct zfcp_fsf_cfdc *fsf_cfdc) { - struct qdio_buffer_element *sbale; struct zfcp_qdio *qdio = adapter->qdio; struct zfcp_fsf_req *req = NULL; struct fsf_qtcb_bottom_support *bottom; @@ -2453,10 +2380,10 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, } spin_lock_bh(&qdio->req_q_lock); - if (zfcp_fsf_req_sbal_get(qdio)) + if (zfcp_qdio_sbal_get(qdio)) goto out; - req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL); + req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); if (IS_ERR(req)) { retval = -EPERM; goto out; @@ -2464,16 +2391,13 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, req->handler = zfcp_fsf_control_file_handler; - sbale = zfcp_qdio_sbale_req(qdio, &req->qdio_req); - sbale[0].flags |= direction; - bottom = &req->qtcb->bottom.support; bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; bottom->option = fsf_cfdc->option; bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, - direction, fsf_cfdc->sg, - FSF_MAX_SBALS_PER_REQ); + fsf_cfdc->sg, + ZFCP_FSF_MAX_SBALS_PER_REQ); if (bytes != ZFCP_CFDC_MAX_SIZE) { zfcp_fsf_req_free(req); goto out; diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index b3de682b64cf..519083fd6e89 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -3,7 +3,7 @@ * * Interface to the FSF support functions. * - * Copyright IBM Corporation 2002, 2009 + * Copyright IBM Corporation 2002, 2010 */ #ifndef FSF_H @@ -152,7 +152,12 @@ #define FSF_CLASS_3 0x00000003 /* SBAL chaining */ -#define FSF_MAX_SBALS_PER_REQ 36 +#define ZFCP_FSF_MAX_SBALS_PER_REQ 36 + +/* max. number of (data buffer) SBALEs in largest SBAL chain + * request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */ +#define ZFCP_FSF_MAX_SBALES_PER_REQ \ + (ZFCP_FSF_MAX_SBALS_PER_REQ * ZFCP_QDIO_MAX_SBALES_PER_SBAL - 2) /* logging space behind QTCB */ #define FSF_QTCB_LOG_SIZE 1024 @@ -361,7 +366,7 @@ struct fsf_qtcb_bottom_config { u32 adapter_type; u8 res0; u8 peer_d_id[3]; - u8 res1[2]; + u16 status_read_buf_num; u16 timer_interval; u8 res2[9]; u8 s_id[3]; diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index dbfa312a7f50..28117e130e2c 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -3,7 +3,7 @@ * * Setup and helper functions to access QDIO. * - * Copyright IBM Corporation 2002, 2009 + * Copyright IBM Corporation 2002, 2010 */ #define KMSG_COMPONENT "zfcp" @@ -151,8 +151,7 @@ static void zfcp_qdio_sbal_limit(struct zfcp_qdio *qdio, } static struct qdio_buffer_element * -zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, - unsigned long sbtype) +zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req) { struct qdio_buffer_element *sbale; @@ -180,17 +179,16 @@ zfcp_qdio_sbal_chain(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, /* set storage-block type for new SBAL */ sbale = zfcp_qdio_sbale_curr(qdio, q_req); - sbale->flags |= sbtype; + sbale->flags |= q_req->sbtype; return sbale; } static struct qdio_buffer_element * -zfcp_qdio_sbale_next(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, - unsigned int sbtype) +zfcp_qdio_sbale_next(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req) { - if (q_req->sbale_curr == ZFCP_LAST_SBALE_PER_SBAL) - return zfcp_qdio_sbal_chain(qdio, q_req, sbtype); + if (q_req->sbale_curr == ZFCP_QDIO_LAST_SBALE_PER_SBAL) + return zfcp_qdio_sbal_chain(qdio, q_req); q_req->sbale_curr++; return zfcp_qdio_sbale_curr(qdio, q_req); } @@ -206,62 +204,38 @@ static void zfcp_qdio_undo_sbals(struct zfcp_qdio *qdio, zfcp_qdio_zero_sbals(sbal, first, count); } -static int zfcp_qdio_fill_sbals(struct zfcp_qdio *qdio, - struct zfcp_qdio_req *q_req, - unsigned int sbtype, void *start_addr, - unsigned int total_length) -{ - struct qdio_buffer_element *sbale; - unsigned long remaining, length; - void *addr; - - /* split segment up */ - for (addr = start_addr, remaining = total_length; remaining > 0; - addr += length, remaining -= length) { - sbale = zfcp_qdio_sbale_next(qdio, q_req, sbtype); - if (!sbale) { - atomic_inc(&qdio->req_q_full); - zfcp_qdio_undo_sbals(qdio, q_req); - return -EINVAL; - } - - /* new piece must not exceed next page boundary */ - length = min(remaining, - (PAGE_SIZE - ((unsigned long)addr & - (PAGE_SIZE - 1)))); - sbale->addr = addr; - sbale->length = length; - } - return 0; -} - /** * zfcp_qdio_sbals_from_sg - fill SBALs from scatter-gather list - * @fsf_req: request to be processed - * @sbtype: SBALE flags + * @qdio: pointer to struct zfcp_qdio + * @q_req: pointer to struct zfcp_qdio_req * @sg: scatter-gather list * @max_sbals: upper bound for number of SBALs to be used * Returns: number of bytes, or error (negativ) */ int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, - unsigned long sbtype, struct scatterlist *sg, - int max_sbals) + struct scatterlist *sg, int max_sbals) { struct qdio_buffer_element *sbale; - int retval, bytes = 0; + int bytes = 0; /* figure out last allowed SBAL */ zfcp_qdio_sbal_limit(qdio, q_req, max_sbals); /* set storage-block type for this request */ sbale = zfcp_qdio_sbale_req(qdio, q_req); - sbale->flags |= sbtype; + sbale->flags |= q_req->sbtype; for (; sg; sg = sg_next(sg)) { - retval = zfcp_qdio_fill_sbals(qdio, q_req, sbtype, - sg_virt(sg), sg->length); - if (retval < 0) - return retval; + sbale = zfcp_qdio_sbale_next(qdio, q_req); + if (!sbale) { + atomic_inc(&qdio->req_q_full); + zfcp_qdio_undo_sbals(qdio, q_req); + return -EINVAL; + } + + sbale->addr = sg_virt(sg); + sbale->length = sg->length; + bytes += sg->length; } @@ -272,6 +246,46 @@ int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, return bytes; } +static int zfcp_qdio_sbal_check(struct zfcp_qdio *qdio) +{ + struct zfcp_qdio_queue *req_q = &qdio->req_q; + + spin_lock_bh(&qdio->req_q_lock); + if (atomic_read(&req_q->count)) + return 1; + spin_unlock_bh(&qdio->req_q_lock); + return 0; +} + +/** + * zfcp_qdio_sbal_get - get free sbal in request queue, wait if necessary + * @qdio: pointer to struct zfcp_qdio + * + * The req_q_lock must be held by the caller of this function, and + * this function may only be called from process context; it will + * sleep when waiting for a free sbal. + * + * Returns: 0 on success, -EIO if there is no free sbal after waiting. + */ +int zfcp_qdio_sbal_get(struct zfcp_qdio *qdio) +{ + long ret; + + spin_unlock_bh(&qdio->req_q_lock); + ret = wait_event_interruptible_timeout(qdio->req_q_wq, + zfcp_qdio_sbal_check(qdio), 5 * HZ); + if (ret > 0) + return 0; + if (!ret) { + atomic_inc(&qdio->req_q_full); + /* assume hanging outbound queue, try queue recovery */ + zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1", NULL); + } + + spin_lock_bh(&qdio->req_q_lock); + return -EIO; +} + /** * zfcp_qdio_send - set PCI flag in first SBALE and send req to QDIO * @qdio: pointer to struct zfcp_qdio diff --git a/drivers/s390/scsi/zfcp_qdio.h b/drivers/s390/scsi/zfcp_qdio.h index 8cca54631e1e..138fba577b48 100644 --- a/drivers/s390/scsi/zfcp_qdio.h +++ b/drivers/s390/scsi/zfcp_qdio.h @@ -11,6 +11,14 @@ #include <asm/qdio.h> +#define ZFCP_QDIO_SBALE_LEN PAGE_SIZE + +/* DMQ bug workaround: don't use last SBALE */ +#define ZFCP_QDIO_MAX_SBALES_PER_SBAL (QDIO_MAX_ELEMENTS_PER_BUFFER - 1) + +/* index of last SBALE (with respect to DMQ bug workaround) */ +#define ZFCP_QDIO_LAST_SBALE_PER_SBAL (ZFCP_QDIO_MAX_SBALES_PER_SBAL - 1) + /** * struct zfcp_qdio_queue - qdio queue buffer, zfcp index and free count * @sbal: qdio buffers @@ -49,6 +57,7 @@ struct zfcp_qdio { /** * struct zfcp_qdio_req - qdio queue related values for a request + * @sbtype: sbal type flags for sbale 0 * @sbal_number: number of free sbals * @sbal_first: first sbal for this request * @sbal_last: last sbal for this request @@ -59,6 +68,7 @@ struct zfcp_qdio { * @qdio_inb_usage: usage of inbound queue */ struct zfcp_qdio_req { + u32 sbtype; u8 sbal_number; u8 sbal_first; u8 sbal_last; @@ -106,4 +116,98 @@ zfcp_qdio_sbale_curr(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req) q_req->sbale_curr); } +/** + * zfcp_qdio_req_init - initialize qdio request + * @qdio: request queue where to start putting the request + * @q_req: the qdio request to start + * @req_id: The request id + * @sbtype: type flags to set for all sbals + * @data: First data block + * @len: Length of first data block + * + * This is the start of putting the request into the queue, the last + * step is passing the request to zfcp_qdio_send. The request queue + * lock must be held during the whole process from init to send. + */ +static inline +void zfcp_qdio_req_init(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, + unsigned long req_id, u32 sbtype, void *data, u32 len) +{ + struct qdio_buffer_element *sbale; + + q_req->sbal_first = q_req->sbal_last = qdio->req_q.first; + q_req->sbal_number = 1; + q_req->sbtype = sbtype; + + sbale = zfcp_qdio_sbale_req(qdio, q_req); + sbale->addr = (void *) req_id; + sbale->flags |= SBAL_FLAGS0_COMMAND; + sbale->flags |= sbtype; + + q_req->sbale_curr = 1; + sbale++; + sbale->addr = data; + if (likely(data)) + sbale->length = len; +} + +/** + * zfcp_qdio_fill_next - Fill next sbale, only for single sbal requests + * @qdio: pointer to struct zfcp_qdio + * @q_req: pointer to struct zfcp_queue_req + * + * This is only required for single sbal requests, calling it when + * wrapping around to the next sbal is a bug. + */ +static inline +void zfcp_qdio_fill_next(struct zfcp_qdio *qdio, struct zfcp_qdio_req *q_req, + void *data, u32 len) +{ + struct qdio_buffer_element *sbale; + + BUG_ON(q_req->sbale_curr == ZFCP_QDIO_LAST_SBALE_PER_SBAL); + q_req->sbale_curr++; + sbale = zfcp_qdio_sbale_curr(qdio, q_req); + sbale->addr = data; + sbale->length = len; +} + +/** + * zfcp_qdio_set_sbale_last - set last entry flag in current sbale + * @qdio: pointer to struct zfcp_qdio + * @q_req: pointer to struct zfcp_queue_req + */ +static inline +void zfcp_qdio_set_sbale_last(struct zfcp_qdio *qdio, + struct zfcp_qdio_req *q_req) +{ + struct qdio_buffer_element *sbale; + + sbale = zfcp_qdio_sbale_curr(qdio, q_req); + sbale->flags |= SBAL_FLAGS_LAST_ENTRY; +} + +/** + * zfcp_qdio_sg_one_sbal - check if one sbale is enough for sg data + * @sg: The scatterlist where to check the data size + * + * Returns: 1 when one sbale is enough for the data in the scatterlist, + * 0 if not. + */ +static inline +int zfcp_qdio_sg_one_sbale(struct scatterlist *sg) +{ + return sg_is_last(sg) && sg->length <= ZFCP_QDIO_SBALE_LEN; +} + +/** + * zfcp_qdio_skip_to_last_sbale - skip to last sbale in sbal + * @q_req: The current zfcp_qdio_req + */ +static inline +void zfcp_qdio_skip_to_last_sbale(struct zfcp_qdio_req *q_req) +{ + q_req->sbale_curr = ZFCP_QDIO_LAST_SBALE_PER_SBAL; +} + #endif /* ZFCP_QDIO_H */ diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 174b6d57d576..be5d2c60453d 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -175,7 +175,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) struct zfcp_fsf_req *old_req, *abrt_req; unsigned long flags; unsigned long old_reqid = (unsigned long) scpnt->host_scribble; - int retval = SUCCESS; + int retval = SUCCESS, ret; int retry = 3; char *dbf_tag; @@ -200,7 +200,9 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt) break; zfcp_erp_wait(adapter); - fc_block_scsi_eh(scpnt); + ret = fc_block_scsi_eh(scpnt); + if (ret) + return ret; if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_RUNNING)) { zfcp_dbf_scsi_abort("nres", adapter->dbf, scpnt, NULL, @@ -231,7 +233,7 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags) struct zfcp_unit *unit = scpnt->device->hostdata; struct zfcp_adapter *adapter = unit->port->adapter; struct zfcp_fsf_req *fsf_req = NULL; - int retval = SUCCESS; + int retval = SUCCESS, ret; int retry = 3; while (retry--) { @@ -240,7 +242,10 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags) break; zfcp_erp_wait(adapter); - fc_block_scsi_eh(scpnt); + ret = fc_block_scsi_eh(scpnt); + if (ret) + return ret; + if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_RUNNING)) { zfcp_dbf_scsi_devreset("nres", tm_flags, unit, scpnt); @@ -276,10 +281,13 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) { struct zfcp_unit *unit = scpnt->device->hostdata; struct zfcp_adapter *adapter = unit->port->adapter; + int ret; zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt); zfcp_erp_wait(adapter); - fc_block_scsi_eh(scpnt); + ret = fc_block_scsi_eh(scpnt); + if (ret) + return ret; return SUCCESS; } @@ -669,11 +677,12 @@ struct zfcp_data zfcp_data = { .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler, .can_queue = 4096, .this_id = -1, - .sg_tablesize = ZFCP_MAX_SBALES_PER_REQ, + .sg_tablesize = ZFCP_FSF_MAX_SBALES_PER_REQ, .cmd_per_lun = 1, .use_clustering = 1, .sdev_attrs = zfcp_sysfs_sdev_attrs, - .max_sectors = (ZFCP_MAX_SBALES_PER_REQ * 8), + .max_sectors = (ZFCP_FSF_MAX_SBALES_PER_REQ * 8), + .dma_boundary = ZFCP_QDIO_SBALE_LEN - 1, .shost_attrs = zfcp_sysfs_shost_attrs, }, }; |