[dpdk-stable] [PATCH 19.11.6 08/13] net/hns3: report Tx descriptor segment limitations
Lijun Ou
oulijun at huawei.com
Fri Nov 13 14:37:05 CET 2020
[ upstream commit eb8b3a0d829bc109dfb13de9c8cdeacda5449e69 ]
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 ed783f7..3129f74 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -2503,6 +2503,8 @@ 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 5663a58..8b36f18 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -965,6 +965,8 @@ 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
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