[PATCH v2 1/1] net/af_packet: register supported param fanout mode

[Shaokai Zhang]

Although af_packet PMD supports setting the fanout algorithm, it is not
explicitly declared during registration. Add fanout parameter registration
to facilitate users in quickly obtaining supported fanout algorithms.

Additionally, add configuration parameter printing during initialization.

Fixes: d3bc77ab05a4 ("net/af_packet: allow changing fanout mode")
Cc: stable at dpdk.org

Signed-off-by: Shaokai Zhang <felix.zhang at jaguarmicro.com>
Reviewed-by: Joey Xing <joey.xing at jaguarmicro.com>
---
 drivers/net/af_packet/rte_eth_af_packet.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index ab34285ed9..55171944cc 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -1172,6 +1172,11 @@ rte_eth_from_packet(struct rte_vdev_device *dev,
 	PMD_LOG(INFO, "%s:\tblock count %d", name, blockcount);
 	PMD_LOG(INFO, "%s:\tframe size %d", name, framesize);
 	PMD_LOG(INFO, "%s:\tframe count %d", name, framecount);
+	PMD_LOG(INFO, "%s:\tqdisc bypass %d", name, qdisc_bypass);
+	if (fanout_mode)
+		PMD_LOG(INFO, "%s:\tfanout mode %s", name, fanout_mode);
+	else
+		PMD_LOG(INFO, "%s:\tfanout mode %s", name, "default PACKET_FANOUT_HASH");
 
 	if (rte_pmd_init_internals(dev, *sockfd, qpairs,
 				   blocksize, blockcount,
@@ -1274,4 +1279,5 @@ RTE_PMD_REGISTER_PARAM_STRING(net_af_packet,
 	"blocksz=<int> "
 	"framesz=<int> "
 	"framecnt=<int> "
-	"qdisc_bypass=<0|1>");
+	"qdisc_bypass=<0|1> "
+	"fanout_mode=<hash|lb|cpu|rollover|rnd|qm>");
-- 
2.47.1.windows.2