[dpdk-dev] [PATCH v7 9/9] table: fix verification on hash bucket header alignment

[Gowrishankar <gowrishankar.m@linux.vnet.ibm.com>]

From: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>

In powerpc systems, rte table hash structs rte_bucket_4_8, rte_bucket_4_16 and
rte_bucket_4_32 are not cache aligned and hence verification on same would fail.
Instead of checking alignment on cpu cacheline, it could equally be tested as
multiple of 64 bytes.

Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
---
 lib/librte_table/rte_table_hash_key16.c | 4 ++--
 lib/librte_table/rte_table_hash_key32.c | 4 ++--
 lib/librte_table/rte_table_hash_key8.c  | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/librte_table/rte_table_hash_key16.c b/lib/librte_table/rte_table_hash_key16.c
index b7e000f..08d4d77 100644
--- a/lib/librte_table/rte_table_hash_key16.c
+++ b/lib/librte_table/rte_table_hash_key16.c
@@ -130,7 +130,7 @@ rte_table_hash_create_key16_lru(void *params,
 	/* Check input parameters */
 	if ((check_params_create_lru(p) != 0) ||
 		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
-		((sizeof(struct rte_bucket_4_16) % RTE_CACHE_LINE_SIZE) != 0))
+		((sizeof(struct rte_bucket_4_16) % 64) != 0))
 		return NULL;
 	n_entries_per_bucket = 4;
 	key_size = 16;
@@ -344,7 +344,7 @@ rte_table_hash_create_key16_ext(void *params,
 	/* Check input parameters */
 	if ((check_params_create_ext(p) != 0) ||
 		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
-		((sizeof(struct rte_bucket_4_16) % RTE_CACHE_LINE_SIZE) != 0))
+		((sizeof(struct rte_bucket_4_16) % 64) != 0))
 		return NULL;
 
 	n_entries_per_bucket = 4;
diff --git a/lib/librte_table/rte_table_hash_key32.c b/lib/librte_table/rte_table_hash_key32.c
index a7aba49..161f6b7 100644
--- a/lib/librte_table/rte_table_hash_key32.c
+++ b/lib/librte_table/rte_table_hash_key32.c
@@ -129,7 +129,7 @@ rte_table_hash_create_key32_lru(void *params,
 	/* Check input parameters */
 	if ((check_params_create_lru(p) != 0) ||
 		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
-		((sizeof(struct rte_bucket_4_32) % RTE_CACHE_LINE_SIZE) != 0)) {
+		((sizeof(struct rte_bucket_4_32) % 64) != 0)) {
 		return NULL;
 	}
 	n_entries_per_bucket = 4;
@@ -337,7 +337,7 @@ rte_table_hash_create_key32_ext(void *params,
 	/* Check input parameters */
 	if ((check_params_create_ext(p) != 0) ||
 		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
-		((sizeof(struct rte_bucket_4_32) % RTE_CACHE_LINE_SIZE) != 0))
+		((sizeof(struct rte_bucket_4_32) % 64) != 0))
 		return NULL;
 
 	n_entries_per_bucket = 4;
diff --git a/lib/librte_table/rte_table_hash_key8.c b/lib/librte_table/rte_table_hash_key8.c
index e2e2bdc..b04f60d 100644
--- a/lib/librte_table/rte_table_hash_key8.c
+++ b/lib/librte_table/rte_table_hash_key8.c
@@ -125,7 +125,7 @@ rte_table_hash_create_key8_lru(void *params, int socket_id, uint32_t entry_size)
 	/* Check input parameters */
 	if ((check_params_create_lru(p) != 0) ||
 		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
-		((sizeof(struct rte_bucket_4_8) % RTE_CACHE_LINE_SIZE) != 0)) {
+		((sizeof(struct rte_bucket_4_8) % 64) != 0)) {
 		return NULL;
 	}
 	n_entries_per_bucket = 4;
@@ -332,7 +332,7 @@ rte_table_hash_create_key8_ext(void *params, int socket_id, uint32_t entry_size)
 	/* Check input parameters */
 	if ((check_params_create_ext(p) != 0) ||
 		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
-		((sizeof(struct rte_bucket_4_8) % RTE_CACHE_LINE_SIZE) != 0))
+		((sizeof(struct rte_bucket_4_8) % 64) != 0))
 		return NULL;
 
 	n_entries_per_bucket = 4;
-- 
1.9.1