[dpdk-dev] [PATCH 07/10] net/hns3: report Tx descriptor segment limitations

[Wei Hu (Xavier)]

From: Lijun Ou <oulijun at huawei.com>

According to the user manual of Kunpeng920 SoC, the max allowed number of
segments per whole packet is 63 and the max number of segments per packet
is 8 in datapath.

This patch reports the Two segment parameters of Tx descriptor limitations
to DPDK framework.

Signed-off-by: Lijun Ou <oulijun at huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei at huawei.com>
---
 drivers/net/hns3/hns3_ethdev.c    | 2 ++
 drivers/net/hns3/hns3_ethdev_vf.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 1c234da..7bc9b17 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -2494,6 +2494,8 @@ hns3_dev_infos_get(struct rte_eth_dev *eth_dev, struct rte_eth_dev_info *info)
 		.nb_max = HNS3_MAX_RING_DESC,
 		.nb_min = HNS3_MIN_RING_DESC,
 		.nb_align = HNS3_ALIGN_RING_DESC,
+		.nb_seg_max = HNS3_MAX_TSO_BD_PER_PKT,
+		.nb_mtu_seg_max = HNS3_MAX_NON_TSO_BD_PER_PKT,
 	};
 
 	info->vmdq_queue_num = 0;
diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index 04a8364..9c45ffa 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -944,6 +944,8 @@ hns3vf_dev_infos_get(struct rte_eth_dev *eth_dev, struct rte_eth_dev_info *info)
 		.nb_max = HNS3_MAX_RING_DESC,
 		.nb_min = HNS3_MIN_RING_DESC,
 		.nb_align = HNS3_ALIGN_RING_DESC,
+		.nb_seg_max = HNS3_MAX_TSO_BD_PER_PKT,
+		.nb_mtu_seg_max = HNS3_MAX_NON_TSO_BD_PER_PKT,
 	};
 
 	info->vmdq_queue_num = 0;
-- 
2.7.4