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From: "Wei Hu (Xavier)" <huwei013@chinasoftinc.com>
To: <dev@dpdk.org>, "Wei Hu (Xavier)" <xavier.huwei@huawei.com>,
	"Min Hu (Connor)" <humin29@huawei.com>,
	Yisen Zhuang <yisen.zhuang@huawei.com>
Subject: [dpdk-dev] [PATCH v3 1/3] net/hns3: report Rx drop packets enable configuration
Date: Thu, 20 Aug 2020 17:03:49 +0800
Message-ID: <20200820090351.3780-2-huwei013@chinasoftinc.com> (raw)
In-Reply-To: <20200820090351.3780-1-huwei013@chinasoftinc.com>

From: "Wei Hu (Xavier)" <xavier.huwei@huawei.com>

Currently, if there are not available Rx buffer descriptors in recieving
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 <lihuisong@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@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


  reply	other threads:[~2020-08-20  9:04 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-18  2:51 [dpdk-dev] [PATCH] net/hns3: support getting Tx and Rx queue information Wei Hu (Xavier)
2020-08-18  3:07 ` [dpdk-dev] [PATCH V2] " Wei Hu (Xavier)
2020-08-19 16:19   ` Ferruh Yigit
2020-08-20  9:07     ` Wei Hu (Xavier)
2020-08-20  9:03 ` [dpdk-dev] [PATCH v3 0/3] minor updates for getting queue info Wei Hu (Xavier)
2020-08-20  9:03   ` Wei Hu (Xavier) [this message]
2020-08-20  9:03   ` [dpdk-dev] [PATCH v3 2/3] net/hns3: support getting Tx and Rx queue information Wei Hu (Xavier)
2020-08-20  9:03   ` [dpdk-dev] [PATCH v3 3/3] ethdev: check if queue setupped when getting queue info Wei Hu (Xavier)
2020-08-24 11:01 ` [dpdk-dev] [PATCH v4 0/3] minor updates for " Wei Hu (Xavier)
2020-08-24 11:01   ` [dpdk-dev] [PATCH v4 1/3] net/hns3: report Rx drop packets enable configuration Wei Hu (Xavier)
2020-08-24 11:01   ` [dpdk-dev] [PATCH v4 2/3] net/hns3: support getting Tx and Rx queue information Wei Hu (Xavier)
2020-08-24 11:01   ` [dpdk-dev] [PATCH v4 3/3] ethdev: check if queue setupped when getting queue info Wei Hu (Xavier)
2020-08-25  8:43     ` Ferruh Yigit
2020-08-25  8:44   ` [dpdk-dev] [PATCH v4 0/3] minor updates for " Ferruh Yigit

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