[dpdk-stable] [PATCH v5 1/4] net/enetc: fix BD ring alignment

[dpdk-stable] [PATCH v5 1/4] net/enetc: fix BD ring alignment

[Gagandeep Singh]

enetc BD rings should be aligned to 128
instead of RTE_CACHE_LINE_SIZE.

Fixes: 469c6111a7 ("net/enetc: enable Rx and Tx")
Cc: stable@dpdk.org

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
 drivers/net/enetc/base/enetc_hw.h | 3 +++
 drivers/net/enetc/enetc_ethdev.c  | 8 ++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/enetc/base/enetc_hw.h b/drivers/net/enetc/base/enetc_hw.h
index fd71155ee..2fe7ccb5b 100644
--- a/drivers/net/enetc/base/enetc_hw.h
+++ b/drivers/net/enetc/base/enetc_hw.h
@@ -12,6 +12,9 @@
 #define ENETC_DEV_ID_VF		0xef00
 #define ENETC_DEV_ID		0xe100
 
+/* BD RING ALIGNMENT */
+#define ENETC_BD_RING_ALIGN	128
+
 /* ENETC register block BAR */
 #define ENETC_BAR_REGS			0x0
 
diff --git a/drivers/net/enetc/enetc_ethdev.c b/drivers/net/enetc/enetc_ethdev.c
index dc05c00ff..4e978348c 100644
--- a/drivers/net/enetc/enetc_ethdev.c
+++ b/drivers/net/enetc/enetc_ethdev.c
@@ -178,12 +178,12 @@ enetc_alloc_txbdr(struct enetc_bdr *txr, uint16_t nb_desc)
 	int size;
 
 	size = nb_desc * sizeof(struct enetc_swbd);
-	txr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	txr->q_swbd = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 	if (txr->q_swbd == NULL)
 		return -ENOMEM;
 
 	size = nb_desc * sizeof(struct enetc_tx_bd);
-	txr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	txr->bd_base = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 	if (txr->bd_base == NULL) {
 		rte_free(txr->q_swbd);
 		txr->q_swbd = NULL;
@@ -325,12 +325,12 @@ enetc_alloc_rxbdr(struct enetc_bdr *rxr,
 	int size;
 
 	size = nb_rx_desc * sizeof(struct enetc_swbd);
-	rxr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	rxr->q_swbd = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 	if (rxr->q_swbd == NULL)
 		return -ENOMEM;
 
 	size = nb_rx_desc * sizeof(union enetc_rx_bd);
-	rxr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
+	rxr->bd_base = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 	if (rxr->bd_base == NULL) {
 		rte_free(rxr->q_swbd);
 		rxr->q_swbd = NULL;
-- 
2.17.1