270  * @param[out] nv On success, a pointer to the newly allocated NVRAM data instance.
278 bhnd_nvram_data_new(bhnd_nvram_data_class *cls, struct bhnd_nvram_data **nv,  in bhnd_nvram_data_new()  argument
286 		return (bhnd_nvram_data_probe_classes(nv, io, NULL, 0));  in bhnd_nvram_data_new()
303 	*nv = data;  in bhnd_nvram_data_new()
310  * @param nv The reference to be retained.
313 bhnd_nvram_data_retain(struct bhnd_nvram_data *nv)  in bhnd_nvram_data_retain()  argument
315 	refcount_acquire(&nv->refs);  in bhnd_nvram_data_retain()
316 	return (nv);  in bhnd_nvram_data_retain()
325  * @param nv The reference to be released.
328 bhnd_nvram_data_release(struct bhnd_nvram_data *nv)  in bhnd_nvram_data_release()  argument
330 	if (!refcount_release(&nv->refs))  in bhnd_nvram_data_release()
334 	nv->cls->op_free(nv);  in bhnd_nvram_data_release()
337 	bhnd_nv_free(nv);  in bhnd_nvram_data_release()
341  * Return a pointer to @p nv's data class.
343  * @param nv The NVRAM data instance to be queried.
346 bhnd_nvram_data_get_class(struct bhnd_nvram_data *nv)  in bhnd_nvram_data_get_class()  argument
348 	return (nv->cls);  in bhnd_nvram_data_get_class()
352  * Return the number of variables in @p nv.
354  * @param nv The NVRAM data to be queried.
357 bhnd_nvram_data_count(struct bhnd_nvram_data *nv)  in bhnd_nvram_data_count()  argument
359 	return (nv->cls->op_count(nv));  in bhnd_nvram_data_count()
363  * Return a borrowed reference to the serialization options for @p nv,
366  * @param nv The NVRAM data to be queried.
369 bhnd_nvram_data_options(struct bhnd_nvram_data *nv)  in bhnd_nvram_data_options()  argument
371 	return (nv->cls->op_options(nv));  in bhnd_nvram_data_options()
375  * Return the capability flags (@see BHND_NVRAM_DATA_CAP_*) for @p nv.
377  * @param	nv	The NVRAM data to be queried.
380 bhnd_nvram_data_caps(struct bhnd_nvram_data *nv)  in bhnd_nvram_data_caps()  argument
382 	return (nv->cls->op_caps(nv));  in bhnd_nvram_data_caps()
386  * Iterate over @p nv, returning the names of subsequent variables.
388  * @param		nv	The NVRAM data to be iterated.
394  * variables defined in @p nv.
397 bhnd_nvram_data_next(struct bhnd_nvram_data *nv, void **cookiep)  in bhnd_nvram_data_next()  argument
405 	if ((name = nv->cls->op_next(nv, cookiep)) == NULL)  in bhnd_nvram_data_next()
412 	    bhnd_nvram_data_getvar_order(nv, prev, *cookiep) > 0)  in bhnd_nvram_data_next()
422  * Search @p nv for a named variable, returning the variable's opaque reference
426  * bhnd_nvram_data_caps() if @p nv supports effecient name-based
429  * @param	nv	The NVRAM data to search.
437 bhnd_nvram_data_find(struct bhnd_nvram_data *nv, const char *name)  in bhnd_nvram_data_find()  argument
439 	return (nv->cls->op_find(nv, name));  in bhnd_nvram_data_find()
449 bhnd_nvram_data_generic_find(struct bhnd_nvram_data *nv, const char *name)  in bhnd_nvram_data_generic_find()  argument
455 	while ((next = bhnd_nvram_data_next(nv, &cookiep))) {  in bhnd_nvram_data_generic_find()
474  * @param		nv		The NVRAM data.
489 bhnd_nvram_data_getvar_order(struct bhnd_nvram_data *nv, void *cookiep1,  in bhnd_nvram_data_getvar_order()  argument
492 	return (nv->cls->op_getvar_order(nv, cookiep1, cookiep2));  in bhnd_nvram_data_getvar_order()
498  * @param		nv	The NVRAM data.
516 bhnd_nvram_data_getvar(struct bhnd_nvram_data *nv, void *cookiep, void *buf,  in bhnd_nvram_data_getvar()  argument
519 	return (nv->cls->op_getvar(nv, cookiep, buf, len, type));  in bhnd_nvram_data_getvar()
531 bhnd_nvram_data_getvar_ptr_info(struct bhnd_nvram_data *nv, void *cookiep,  in bhnd_nvram_data_getvar_ptr_info()  argument
538 	BHND_NV_ASSERT(bhnd_nvram_data_caps(nv) & BHND_NVRAM_DATA_CAP_READ_PTR,  in bhnd_nvram_data_getvar_ptr_info()
542 	vptr = bhnd_nvram_data_getvar_ptr(nv, cookiep, len, type);  in bhnd_nvram_data_getvar_ptr_info()
549 	name = bhnd_nvram_data_getvar_name(nv, cookiep);  in bhnd_nvram_data_getvar_ptr_info()
553 	if (bhnd_nvram_data_caps(nv) & BHND_NVRAM_DATA_CAP_DEVPATHS)  in bhnd_nvram_data_getvar_ptr_info()
586 bhnd_nvram_data_generic_rp_getvar(struct bhnd_nvram_data *nv, void *cookiep,  in bhnd_nvram_data_generic_rp_getvar()  argument
596 	BHND_NV_ASSERT(bhnd_nvram_data_caps(nv) & BHND_NVRAM_DATA_CAP_READ_PTR,  in bhnd_nvram_data_generic_rp_getvar()
600 	vptr = bhnd_nvram_data_getvar_ptr_info(nv, cookiep, &vlen, &vtype,  in bhnd_nvram_data_generic_rp_getvar()
624  * @param	nv	The NVRAM data.
635 bhnd_nvram_data_copy_val(struct bhnd_nvram_data *nv, void *cookiep,  in bhnd_nvram_data_copy_val()  argument
638 	return (nv->cls->op_copy_val(nv, cookiep, value));  in bhnd_nvram_data_copy_val()
653 bhnd_nvram_data_generic_rp_copy_val(struct bhnd_nvram_data *nv,  in bhnd_nvram_data_generic_rp_copy_val()  argument
661 	BHND_NV_ASSERT(bhnd_nvram_data_caps(nv) & BHND_NVRAM_DATA_CAP_READ_PTR,  in bhnd_nvram_data_generic_rp_copy_val()
665 	vptr = bhnd_nvram_data_getvar_ptr_info(nv, cookiep, &vlen, &vtype,  in bhnd_nvram_data_generic_rp_copy_val()
681  * @param		nv	The NVRAM data.
690  * @retval NULL		if direct data access is unsupported by @p nv, or
694 bhnd_nvram_data_getvar_ptr(struct bhnd_nvram_data *nv, void *cookiep,  in bhnd_nvram_data_getvar_ptr()  argument
697 	return (nv->cls->op_getvar_ptr(nv, cookiep, len, type));  in bhnd_nvram_data_getvar_ptr()
702  * @param		nv	The NVRAM data to be iterated.
710 bhnd_nvram_data_getvar_name(struct bhnd_nvram_data *nv, void *cookiep)  in bhnd_nvram_data_getvar_name()  argument
712 	return (nv->cls->op_getvar_name(nv, cookiep));  in bhnd_nvram_data_getvar_name()
721  * @param	nv	The NVRAM data instance.
728  * @retval	ENOENT	if @p name is unrecognized by @p nv.
734 bhnd_nvram_data_filter_setvar(struct bhnd_nvram_data *nv, const char *name,  in bhnd_nvram_data_filter_setvar()  argument
737 	return (nv->cls->op_filter_setvar(nv, name, value, result));  in bhnd_nvram_data_filter_setvar()
743  * @param	nv	The NVRAM data instance.
747  * @retval	ENOENT	if @p name is unrecognized by @p nv.
751 bhnd_nvram_data_filter_unsetvar(struct bhnd_nvram_data *nv, const char *name)  in bhnd_nvram_data_filter_unsetvar()  argument
753 	return (nv->cls->op_filter_unsetvar(nv, name));  in bhnd_nvram_data_filter_unsetvar()