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net/hns3: support Rx descriptor status query

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Add support for query Rx 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 19:21:07 +08:00 committed by Ferruh Yigit
parent 656a6d9cc0
commit 63e05f19b8
7 changed files with 42 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
Rx descriptor status = Y
Tx descriptor status = Y
Basic stats = Y
Extended stats = Y

1
doc/guides/nics/features/hns3_vf.ini
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@ -33,6 +33,7 @@ Inner L3 checksum = Y
Inner L4 checksum = Y
Packet type parsing = Y
Tx descriptor status = Y
Rx 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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@ -89,6 +89,7 @@ New Features
* 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.
* Added support for query Rx descriptor status.
* **Updated NXP DPAA driver.**

1
drivers/net/hns3/hns3_ethdev.c
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@ -6772,6 +6772,7 @@ hns3_dev_init(struct rte_eth_dev *eth_dev)
err_mp_init_secondary:
eth_dev->dev_ops = NULL;
eth_dev->rx_pkt_burst = NULL;
eth_dev->rx_descriptor_status = NULL;
eth_dev->tx_pkt_burst = NULL;
eth_dev->tx_pkt_prepare = NULL;
eth_dev->tx_descriptor_status = NULL;

1
drivers/net/hns3/hns3_ethdev_vf.c
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@ -2915,6 +2915,7 @@ hns3vf_dev_init(struct rte_eth_dev *eth_dev)
err_mp_init_secondary:
eth_dev->dev_ops = NULL;
eth_dev->rx_pkt_burst = NULL;
eth_dev->rx_descriptor_status = NULL;
eth_dev->tx_pkt_burst = NULL;
eth_dev->tx_pkt_prepare = NULL;
eth_dev->tx_descriptor_status = NULL;

36
drivers/net/hns3/hns3_rxtx.c
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@ -4042,6 +4042,7 @@ void hns3_set_rxtx_function(struct rte_eth_dev *eth_dev)
if (hns->hw.adapter_state == HNS3_NIC_STARTED &&
__atomic_load_n(&hns->hw.reset.resetting, __ATOMIC_RELAXED) == 0) {
eth_dev->rx_pkt_burst = hns3_get_rx_function(eth_dev);
eth_dev->rx_descriptor_status = hns3_dev_rx_descriptor_status;
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;
@ -4257,6 +4258,41 @@ hns3_tx_done_cleanup(void *txq, uint32_t free_cnt)
return -ENOTSUP;
}
int
hns3_dev_rx_descriptor_status(void *rx_queue, uint16_t offset)
{
volatile struct hns3_desc *rxdp;
struct hns3_rx_queue *rxq;
struct rte_eth_dev *dev;
uint32_t bd_base_info;
uint16_t desc_id;
rxq = (struct hns3_rx_queue *)rx_queue;
if (offset >= rxq->nb_rx_desc)
return -EINVAL;
desc_id = (rxq->next_to_use + offset) % rxq->nb_rx_desc;
rxdp = &rxq->rx_ring[desc_id];
bd_base_info = rte_le_to_cpu_32(rxdp->rx.bd_base_info);
dev = &rte_eth_devices[rxq->port_id];
if (dev->rx_pkt_burst == hns3_recv_pkts ||
dev->rx_pkt_burst == hns3_recv_scattered_pkts) {
if (offset >= rxq->nb_rx_desc - rxq->rx_free_hold)
return RTE_ETH_RX_DESC_UNAVAIL;
} else if (dev->rx_pkt_burst == hns3_recv_pkts_vec ||
dev->rx_pkt_burst == hns3_recv_pkts_vec_sve){
if (offset >= rxq->nb_rx_desc - rxq->rx_rearm_nb)
return RTE_ETH_RX_DESC_UNAVAIL;
} else {
return RTE_ETH_RX_DESC_UNAVAIL;
}
if (!(bd_base_info & BIT(HNS3_RXD_VLD_B)))
return RTE_ETH_RX_DESC_AVAIL;
else
return RTE_ETH_RX_DESC_DONE;
}
int
hns3_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
{

1
drivers/net/hns3/hns3_rxtx.h
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@ -720,6 +720,7 @@ 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_rx_descriptor_status(void *rx_queue, uint16_t offset);
int hns3_dev_tx_descriptor_status(void *tx_queue, uint16_t offset);
#endif /* _HNS3_RXTX_H_ */