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net/hns3: support Rx/Tx descriptor dump

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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>
Acked-by: Ferruh Yigit <ferruh.yigit@xilinx.com>
This commit is contained in:
Dongdong Liu 2022-10-06 20:05:13 +08:00 committed by Ferruh Yigit
parent 092b701fe3
commit fbb7a43a36
4 changed files with 97 additions and 0 deletions
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88
drivers/net/hns3/hns3_dump.c
View File

@ -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;
}

5
drivers/net/hns3/hns3_dump.h
View File

@ -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 */

2
drivers/net/hns3/hns3_ethdev.c
View File

@ -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 = {

2
drivers/net/hns3/hns3_ethdev_vf.c
View File

@ -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 = {