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

[kkanas]

From: Krzysztof Kanas <kka...@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 <kka...@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