net/hns3: report Tx descriptor segment limitations

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@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>

diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 8b18b47..b9868de 100644 (file)
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -2491,6 +2491,8 @@ 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 (file)
--- 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;