From: Hongbo Zheng Date: Tue, 23 Mar 2021 11:21:07 +0000 (+0800) Subject: net/hns3: support Rx descriptor status query X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=63e05f19b82b;p=dpdk.git net/hns3: support Rx descriptor status query 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 Signed-off-by: Min Hu (Connor) --- diff --git a/doc/guides/nics/features/hns3.ini b/doc/guides/nics/features/hns3.ini index 2c0cb89a1b..3988be4fba 100644 --- a/doc/guides/nics/features/hns3.ini +++ b/doc/guides/nics/features/hns3.ini @@ -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 diff --git a/doc/guides/nics/features/hns3_vf.ini b/doc/guides/nics/features/hns3_vf.ini index e60b09b82b..1640669a98 100644 --- a/doc/guides/nics/features/hns3_vf.ini +++ b/doc/guides/nics/features/hns3_vf.ini @@ -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 diff --git a/doc/guides/rel_notes/release_21_05.rst b/doc/guides/rel_notes/release_21_05.rst index 90a81661b6..46ae33fbb7 100644 --- a/doc/guides/rel_notes/release_21_05.rst +++ b/doc/guides/rel_notes/release_21_05.rst @@ -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.** diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c index 8c65be49bf..b7bfac8323 100644 --- a/drivers/net/hns3/hns3_ethdev.c +++ b/drivers/net/hns3/hns3_ethdev.c @@ -6772,6 +6772,7 @@ err_mp_init_primary: 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; diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c index 4412da3392..34a6927e77 100644 --- a/drivers/net/hns3/hns3_ethdev_vf.c +++ b/drivers/net/hns3/hns3_ethdev_vf.c @@ -2915,6 +2915,7 @@ err_mp_init_primary: 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; diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c index a84da152d7..feeb702281 100644 --- a/drivers/net/hns3/hns3_rxtx.c +++ b/drivers/net/hns3/hns3_rxtx.c @@ -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) { diff --git a/drivers/net/hns3/hns3_rxtx.h b/drivers/net/hns3/hns3_rxtx.h index 82d5aa0fd6..f9b30485fe 100644 --- a/drivers/net/hns3/hns3_rxtx.h +++ b/drivers/net/hns3/hns3_rxtx.h @@ -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_ */