[dpdk-dev] [PATCH] net/af_packet: set default blocksize to pagesize

[kkanas at marvell.com]

From: Krzysztof Kanas <kkanas at marvell.com>

Kernel validates block size to be aligned to page size. Code works on
platforms with page size 4k, but on others e.g. Arm64 fails with default
parameters.

Signed-off-by: Krzysztof Kanas <kkanas at marvell.com>
---
 drivers/net/af_packet/rte_eth_af_packet.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index 4a660d5f013f..ec3d2cbb5202 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -32,7 +32,6 @@
 #define ETH_AF_PACKET_FRAMECOUNT_ARG	"framecnt"
 #define ETH_AF_PACKET_QDISC_BYPASS_ARG	"qdisc_bypass"
 
-#define DFLT_BLOCK_SIZE		(1 << 12)
 #define DFLT_FRAME_SIZE		(1 << 11)
 #define DFLT_FRAME_COUNT	(1 << 9)
 
@@ -811,7 +810,7 @@ rte_eth_from_packet(struct rte_vdev_device *dev,
 	struct rte_kvargs_pair *pair = NULL;
 	unsigned k_idx;
 	unsigned int blockcount;
-	unsigned int blocksize = DFLT_BLOCK_SIZE;
+	unsigned int blocksize;
 	unsigned int framesize = DFLT_FRAME_SIZE;
 	unsigned int framecount = DFLT_FRAME_COUNT;
 	unsigned int qpairs = 1;
@@ -821,6 +820,7 @@ rte_eth_from_packet(struct rte_vdev_device *dev,
 	if (*sockfd < 0)
 		return -1;
 
+	blocksize = getpagesize();
 	/*
 	 * Walk arguments for configurable settings
 	 */
-- 
2.21.0