diff options
Diffstat (limited to 'lib/librte_eal/common/include/rte_memory.h')
-rw-r--r-- | lib/librte_eal/common/include/rte_memory.h | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/lib/librte_eal/common/include/rte_memory.h b/lib/librte_eal/common/include/rte_memory.h index ce937058..d970825d 100644 --- a/lib/librte_eal/common/include/rte_memory.h +++ b/lib/librte_eal/common/include/rte_memory.h @@ -463,8 +463,45 @@ unsigned rte_memory_get_nchannel(void); */ unsigned rte_memory_get_nrank(void); -/* check memsegs iovas are within a range based on dma mask */ -int __rte_experimental rte_eal_check_dma_mask(uint8_t maskbits); +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Check if all currently allocated memory segments are compliant with + * supplied DMA address width. + * + * @param maskbits + * Address width to check against. + */ +int __rte_experimental rte_mem_check_dma_mask(uint8_t maskbits); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Check if all currently allocated memory segments are compliant with + * supplied DMA address width. This function will use + * rte_memseg_walk_thread_unsafe instead of rte_memseg_walk implying + * memory_hotplug_lock will not be acquired avoiding deadlock during + * memory initialization. + * + * This function is just for EAL core memory internal use. Drivers should + * use the previous rte_mem_check_dma_mask. + * + * @param maskbits + * Address width to check against. + */ +int __rte_experimental rte_mem_check_dma_mask_thread_unsafe(uint8_t maskbits); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Set dma mask to use once memory initialization is done. Previous functions + * rte_mem_check_dma_mask and rte_mem_check_dma_mask_thread_unsafe can not be + * used safely until memory has been initialized. + */ +void __rte_experimental rte_mem_set_dma_mask(uint8_t maskbits); /** * Drivers based on uio will not load unless physical |