net/enic: fix name of classifiers hash table

The enic_clsf_init() function is called once per enic instance, but it
used a static name to create the hash table.  Consequently when using
more than one enic instance, there was a name collision which caused
errors:

EAL: memzone_reserve_aligned_thread_unsafe():
  memzone<RG_HT_enicpmd_clsf_hash> already exists
RING: Cannot reserve memory
HASH: memory allocation failed
PMD: rte_enic_pmd: Init of hash table for clsf failed.
  Flow director feature will not work

This patch changes the name to be unique per enic instance.

Fixes: fefed3d1e62c ("enic: new driver")

Signed-off-by: Nelson Escobar <neescoba@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>

diff --git a/drivers/net/enic/enic_clsf.c b/drivers/net/enic/enic_clsf.c
index 7d2bb78..3365176 100644 (file)
--- a/drivers/net/enic/enic_clsf.c
+++ b/drivers/net/enic/enic_clsf.c
@@ -248,15 +248,16 @@ void enic_clsf_destroy(struct enic *enic)
 
 int enic_clsf_init(struct enic *enic)
 {
+       char clsf_name[RTE_HASH_NAMESIZE];
        struct rte_hash_parameters hash_params = {
-               .name = "enicpmd_clsf_hash",
+               .name = clsf_name,
                .entries = ENICPMD_CLSF_HASH_ENTRIES,
                .key_len = sizeof(struct rte_eth_fdir_filter),
                .hash_func = DEFAULT_HASH_FUNC,
                .hash_func_init_val = 0,
                .socket_id = SOCKET_ID_ANY,
        };
-
+       snprintf(clsf_name, RTE_HASH_NAMESIZE, "enic_clsf_%s", enic->bdf_name);
        enic->fdir.hash = rte_hash_create(&hash_params);
        memset(&enic->fdir.stats, 0, sizeof(enic->fdir.stats));
        enic->fdir.stats.free = ENICPMD_FDIR_MAX;