* [dpdk-stable] [PATCH v5 1/4] net/enetc: fix BD ring alignment
[not found] ` <20191023060602.32456-1-g.singh@nxp.com>
@ 2019-10-23 6:05 ` Gagandeep Singh
0 siblings, 0 replies; only message in thread
From: Gagandeep Singh @ 2019-10-23 6:05 UTC (permalink / raw)
To: dev, ferruh.yigit; +Cc: Gagandeep Singh, stable
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
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