hash: fix memory allocation of cuckoo key table

When calculating the size for the table which allocates
the keys, size was calculated wrongly from multiplying
two 32-bit variables, resulting on a 32-bit number,
before casting to 64-bit, so maximum size was 4G.

Fixes: 48a399119619 ("hash: replace with cuckoo hash implementation")

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>

diff --git a/lib/librte_hash/rte_cuckoo_hash.c b/lib/librte_hash/rte_cuckoo_hash.c
index 4da859a..7019763 100644 (file)
--- a/lib/librte_hash/rte_cuckoo_hash.c
+++ b/lib/librte_hash/rte_cuckoo_hash.c
@@ -238,7 +238,7 @@ rte_hash_create(const struct rte_hash_parameters *params)
        const uint32_t key_entry_size = sizeof(struct rte_hash_key) + params->key_len;
 
        /* Store all keys and leave the first entry as a dummy entry for lookup_bulk */
-       const uint64_t key_tbl_size = key_entry_size * (params->entries + 1);
+       const uint64_t key_tbl_size = (uint64_t) key_entry_size * (params->entries + 1);
 
        k = rte_zmalloc_socket(NULL, key_tbl_size,
                        RTE_CACHE_LINE_SIZE, params->socket_id);