From: "Wei Hu (Xavier)" <xavier.hu...@huawei.com>
Currently, if there are not available Rx buffer descriptors in receiving
direction based on hns3 network engine, incoming packets will always be
dropped by hardware. This patch reports the '.rx_drop_en' information to
DPDK framework in the '.dev_infos_get', '.rxq_info_get' and
'.rx_queue_setup' ops implementation function.
Signed-off-by: Huisong Li <lihuis...@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.hu...@huawei.com>
---
drivers/net/hns3/hns3_ethdev.c | 9 +++++++++
drivers/net/hns3/hns3_ethdev_vf.c | 9 +++++++++
drivers/net/hns3/hns3_rxtx.c | 6 ++++++
3 files changed, 24 insertions(+)
diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 81e773046..bcbbd7e81 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -2495,6 +2495,15 @@ hns3_dev_infos_get(struct rte_eth_dev *eth_dev, struct
rte_eth_dev_info *info)
.nb_mtu_seg_max = HNS3_MAX_NON_TSO_BD_PER_PKT,
};
+ info->default_rxconf = (struct rte_eth_rxconf) {
+ /*
+ * If there are no available Rx buffer descriptors, incoming
+ * packets are always dropped by hardware based on hns3 network
+ * engine.
+ */
+ .rx_drop_en = 1,
+ };
+
info->vmdq_queue_num = 0;
info->reta_size = HNS3_RSS_IND_TBL_SIZE;
diff --git a/drivers/net/hns3/hns3_ethdev_vf.c
b/drivers/net/hns3/hns3_ethdev_vf.c
index 1d2941f0e..3156ed7f5 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -947,6 +947,15 @@ hns3vf_dev_infos_get(struct rte_eth_dev *eth_dev, struct
rte_eth_dev_info *info)
.nb_mtu_seg_max = HNS3_MAX_NON_TSO_BD_PER_PKT,
};
+ info->default_rxconf = (struct rte_eth_rxconf) {
+ /*
+ * If there are no available Rx buffer descriptors, incoming
+ * packets are always dropped by hardware based on hns3 network
+ * engine.
+ */
+ .rx_drop_en = 1,
+ };
+
info->vmdq_queue_num = 0;
info->reta_size = HNS3_RSS_IND_TBL_SIZE;
diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index c0f798159..3e5e32e38 100644
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -1251,6 +1251,12 @@ hns3_rx_queue_setup(struct rte_eth_dev *dev, uint16_t
idx, uint16_t nb_desc,
return -EINVAL;
}
+ if (conf->rx_drop_en == 0)
+ hns3_warn(hw, "if there are no available Rx descriptors,"
+ "incoming packets are always dropped. input parameter"
+ " conf->rx_drop_en(%u) is uneffective.",
+ conf->rx_drop_en);
+
if (dev->data->rx_queues[idx]) {
hns3_rx_queue_release(dev->data->rx_queues[idx]);
dev->data->rx_queues[idx] = NULL;
--
2.27.0
