Hi All,
There is some description about RTE hash's multi-thread support in
Programmer's Guide. After reading that I still have some questions as follows:
1) There is a sentence " In all modes of operation lookups are thread-safe
meaning lookups can be called from multiple threads concurrently.".
But if the extra_flag is only set RTE_HASH_EXTRA_FLAGS_EXT_TABLE, RTE
hash will use a link list to store extend buckets due to excessive hash
collisions.
So how can we make sure the link list accesses are safe with
reading/writing concurrently?
2) Can we support multithread writing with
RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF being set? Do we need add
RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD flag?
Any reply will be appreciated very much. Thanks.
Jerry
