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From: Dongdong Liu <liudongdong3@huawei.com>
To: <dev@dpdk.org>, <thomas@monjalon.net>, <ferruh.yigit@amd.com>,
<andrew.rybchenko@oktetlabs.ru>, <stephen@networkplumber.org>,
<mdr@ashroe.eu>, <reshma.pattan@intel.com>
CC: Dongdong Liu <liudongdong3@huawei.com>, Min Hu <humin29@huawei.com>, Yisen
Zhuang <yisen.zhuang@huawei.com>
Subject: [PATCH v5 2/3] net/hns3: support Rx/Tx bd dump
Date: Thu, 6 Oct 2022 20:05:13 +0800
Message-ID: <20221006120514.28830-3-liudongdong3@huawei.com>
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This patch support query HW descriptor from hns3 device. HW descriptor
is also called BD(buffer description) which is shared memory between
software and hardware.
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
---
drivers/net/hns3/hns3_dump.c | 88 +++++++++++++++++++++++++++++++
drivers/net/hns3/hns3_dump.h | 5 ++
drivers/net/hns3/hns3_ethdev.c | 2 +
drivers/net/hns3/hns3_ethdev_vf.c | 2 +
4 files changed, 97 insertions(+)
diff --git a/drivers/net/hns3/hns3_dump.c b/drivers/net/hns3/hns3_dump.c
index 95b64f8896..ae62bb56c8 100644
--- a/drivers/net/hns3/hns3_dump.c
+++ b/drivers/net/hns3/hns3_dump.c
@@ -10,6 +10,9 @@
#include "hns3_rxtx.h"
#include "hns3_dump.h"
+#define HNS3_BD_DW_NUM 8
+#define HNS3_BD_ADDRESS_LAST_DW 2
+
static const char *
hns3_get_adapter_state_name(enum hns3_adapter_state state)
{
@@ -931,3 +934,88 @@ hns3_eth_dev_priv_dump(struct rte_eth_dev *dev, FILE *file)
return 0;
}
+
+int
+hns3_rx_descriptor_dump(const struct rte_eth_dev *dev, uint16_t queue_id,
+ uint16_t offset, uint16_t num, FILE *file)
+{
+ struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct hns3_rx_queue *rxq = dev->data->rx_queues[queue_id];
+ uint32_t *bd_data;
+ uint16_t count = 0;
+ uint16_t desc_id;
+ int i;
+
+ if (offset >= rxq->nb_rx_desc)
+ return -EINVAL;
+
+ if (num > rxq->nb_rx_desc) {
+ hns3_err(hw, "Invalid BD num=%u\n", num);
+ return -EINVAL;
+ }
+
+ while (count < num) {
+ desc_id = (rxq->next_to_use + offset + count) % rxq->nb_rx_desc;
+ bd_data = (uint32_t *)(&rxq->rx_ring[desc_id]);
+ fprintf(file, "Rx queue id:%u BD id:%u\n", queue_id, desc_id);
+ for (i = 0; i < HNS3_BD_DW_NUM; i++) {
+ /*
+ * For the sake of security, first 8 bytes of BD which
+ * stands for physical address of packet should not be
+ * shown.
+ */
+ if (i < HNS3_BD_ADDRESS_LAST_DW) {
+ fprintf(file, "RX BD WORD[%d]:0x%08x\n", i, 0);
+ continue;
+ }
+ fprintf(file, "RX BD WORD[%d]:0x%08x\n", i,
+ *(bd_data + i));
+ }
+ count++;
+ }
+
+ return 0;
+}
+
+int
+hns3_tx_descriptor_dump(const struct rte_eth_dev *dev, uint16_t queue_id,
+ uint16_t offset, uint16_t num, FILE *file)
+{
+ struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct hns3_tx_queue *txq = dev->data->tx_queues[queue_id];
+ uint32_t *bd_data;
+ uint16_t count = 0;
+ uint16_t desc_id;
+ int i;
+
+ if (offset >= txq->nb_tx_desc)
+ return -EINVAL;
+
+ if (num > txq->nb_tx_desc) {
+ hns3_err(hw, "Invalid BD num=%u\n", num);
+ return -EINVAL;
+ }
+
+ while (count < num) {
+ desc_id = (txq->next_to_use + offset + count) % txq->nb_tx_desc;
+ bd_data = (uint32_t *)(&txq->tx_ring[desc_id]);
+ fprintf(file, "Tx queue id:%u BD id:%u\n", queue_id, desc_id);
+ for (i = 0; i < HNS3_BD_DW_NUM; i++) {
+ /*
+ * For the sake of security, first 8 bytes of BD which
+ * stands for physical address of packet should not be
+ * shown.
+ */
+ if (i < HNS3_BD_ADDRESS_LAST_DW) {
+ fprintf(file, "TX BD WORD[%d]:0x%08x\n", i, 0);
+ continue;
+ }
+
+ fprintf(file, "Tx BD WORD[%d]:0x%08x\n", i,
+ *(bd_data + i));
+ }
+ count++;
+ }
+
+ return 0;
+}
diff --git a/drivers/net/hns3/hns3_dump.h b/drivers/net/hns3/hns3_dump.h
index 43e983a42f..54f6c67e63 100644
--- a/drivers/net/hns3/hns3_dump.h
+++ b/drivers/net/hns3/hns3_dump.h
@@ -10,4 +10,9 @@
#include <ethdev_driver.h>
int hns3_eth_dev_priv_dump(struct rte_eth_dev *dev, FILE *file);
+
+int hns3_rx_descriptor_dump(const struct rte_eth_dev *dev, uint16_t queue_id,
+ uint16_t offset, uint16_t num, FILE *file);
+int hns3_tx_descriptor_dump(const struct rte_eth_dev *dev, uint16_t queue_id,
+ uint16_t offset, uint16_t num, FILE *file);
#endif /* HNS3_DUMP_H */
diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 813fcedc6a..b4365b78be 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -6558,6 +6558,8 @@ static const struct eth_dev_ops hns3_eth_dev_ops = {
.timesync_read_time = hns3_timesync_read_time,
.timesync_write_time = hns3_timesync_write_time,
.eth_dev_priv_dump = hns3_eth_dev_priv_dump,
+ .eth_rx_descriptor_dump = hns3_rx_descriptor_dump,
+ .eth_tx_descriptor_dump = hns3_tx_descriptor_dump,
};
static const struct hns3_reset_ops hns3_reset_ops = {
diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index c1bbcf42b1..d220522c43 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -2302,6 +2302,8 @@ static const struct eth_dev_ops hns3vf_eth_dev_ops = {
.dev_supported_ptypes_get = hns3_dev_supported_ptypes_get,
.tx_done_cleanup = hns3_tx_done_cleanup,
.eth_dev_priv_dump = hns3_eth_dev_priv_dump,
+ .eth_rx_descriptor_dump = hns3_rx_descriptor_dump,
+ .eth_tx_descriptor_dump = hns3_tx_descriptor_dump,
};
static const struct hns3_reset_ops hns3vf_reset_ops = {
--
2.22.0