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net/hns3: support Tx descriptor status query

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Add support for query Tx descriptor status in hns3 driver. Check the
descriptor specified and provide the status information of the
corresponding descriptor.

Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
This commit is contained in:
Hongbo Zheng 2021-03-23 19:21:06 +08:00 committed by Ferruh Yigit
parent cb082f5985
commit 656a6d9cc0
7 changed files with 34 additions and 0 deletions
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1
doc/guides/nics/features/hns3.ini
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@ -35,6 +35,7 @@ L4 checksum offload = Y
Inner L3 checksum = Y
Inner L4 checksum = Y
Packet type parsing = Y
Tx descriptor status = Y
Basic stats = Y
Extended stats = Y
Stats per queue = Y

1
doc/guides/nics/features/hns3_vf.ini
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@ -32,6 +32,7 @@ L4 checksum offload = Y
Inner L3 checksum = Y
Inner L4 checksum = Y
Packet type parsing = Y
Tx descriptor status = Y
Basic stats = Y
Extended stats = Y
Stats per queue = Y

1
doc/guides/rel_notes/release_21_05.rst
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@ -88,6 +88,7 @@ New Features
* Added support for copper port in Kunpeng930.
* Added support for runtime config to select IO burst function.
* Added support for outer UDP checksum in Kunpeng930.
* Added support for query Tx descriptor status.
* **Updated NXP DPAA driver.**

1
drivers/net/hns3/hns3_ethdev.c
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@ -6774,6 +6774,7 @@ hns3_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->rx_pkt_burst = NULL;
eth_dev->tx_pkt_burst = NULL;
eth_dev->tx_pkt_prepare = NULL;
eth_dev->tx_descriptor_status = NULL;
rte_free(eth_dev->process_private);
eth_dev->process_private = NULL;
return ret;

1
drivers/net/hns3/hns3_ethdev_vf.c
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@ -2917,6 +2917,7 @@ hns3vf_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->rx_pkt_burst = NULL;
eth_dev->tx_pkt_burst = NULL;
eth_dev->tx_pkt_prepare = NULL;
eth_dev->tx_descriptor_status = NULL;
rte_free(eth_dev->process_private);
eth_dev->process_private = NULL;

28
drivers/net/hns3/hns3_rxtx.c
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@ -4044,6 +4044,7 @@ void hns3_set_rxtx_function(struct rte_eth_dev *eth_dev)
eth_dev->rx_pkt_burst = hns3_get_rx_function(eth_dev);
eth_dev->tx_pkt_burst = hns3_get_tx_function(eth_dev, &prep);
eth_dev->tx_pkt_prepare = prep;
eth_dev->tx_descriptor_status = hns3_dev_tx_descriptor_status;
} else {
eth_dev->rx_pkt_burst = hns3_dummy_rxtx_burst;
eth_dev->tx_pkt_burst = hns3_dummy_rxtx_burst;
@ -4256,6 +4257,33 @@ hns3_tx_done_cleanup(void *txq, uint32_t free_cnt)
return -ENOTSUP;
}
int
hns3_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
{
volatile struct hns3_desc *txdp;
struct hns3_tx_queue *txq;
struct rte_eth_dev *dev;
uint16_t desc_id;
txq = (struct hns3_tx_queue *)tx_queue;
if (offset >= txq->nb_tx_desc)
return -EINVAL;
dev = &rte_eth_devices[txq->port_id];
if (dev->tx_pkt_burst != hns3_xmit_pkts_simple &&
dev->tx_pkt_burst != hns3_xmit_pkts &&
dev->tx_pkt_burst != hns3_xmit_pkts_vec_sve &&
dev->tx_pkt_burst != hns3_xmit_pkts_vec)
return RTE_ETH_TX_DESC_UNAVAIL;
desc_id = (txq->next_to_use + offset) % txq->nb_tx_desc;
txdp = &txq->tx_ring[desc_id];
if (txdp->tx.tp_fe_sc_vld_ra_ri & rte_cpu_to_le_16(BIT(HNS3_TXD_VLD_B)))
return RTE_ETH_TX_DESC_FULL;
else
return RTE_ETH_TX_DESC_DONE;
}
uint32_t
hns3_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
{

1
drivers/net/hns3/hns3_rxtx.h
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@ -720,5 +720,6 @@ void hns3_stop_all_txqs(struct rte_eth_dev *dev);
void hns3_restore_tqp_enable_state(struct hns3_hw *hw);
int hns3_tx_done_cleanup(void *txq, uint32_t free_cnt);
void hns3_enable_rxd_adv_layout(struct hns3_hw *hw);
int hns3_dev_tx_descriptor_status(void *tx_queue, uint16_t offset);
#endif /* _HNS3_RXTX_H_ */