net/hns3: support Tx descriptor status query

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>

diff --git a/doc/guides/nics/features/hns3.ini b/doc/guides/nics/features/hns3.ini
index 3aeea8ed9730f2d171c21bcdfac246a86041a46d..2c0cb89a1bb2b67f235e614b1fb87b920bfc5092 100644 (file)
--- 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
+Tx descriptor status = Y
 Basic stats          = Y
 Extended stats       = Y
 Stats per queue      = Y

diff --git a/doc/guides/nics/features/hns3_vf.ini b/doc/guides/nics/features/hns3_vf.ini
index c796cd519bd13adbf66bd68f36a8b55cd45f5b28..e60b09b82bedf74ed694ee3cef07f045eec326e9 100644 (file)
--- a/doc/guides/nics/features/hns3_vf.ini
+++ b/doc/guides/nics/features/hns3_vf.ini
@@ -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

diff --git a/doc/guides/rel_notes/release_21_05.rst b/doc/guides/rel_notes/release_21_05.rst
index 5082833f2b8204ac38d49eff71e28256e893abab..90a81661b6e7733285d58a26f366b7f55775a25c 100644 (file)
--- a/doc/guides/rel_notes/release_21_05.rst
+++ b/doc/guides/rel_notes/release_21_05.rst
@@ -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.**
 

diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 82538d4ee978c8de0a74319600ce9a73a78560cb..8c65be49bf785305e689d2e1d020ffab262c6aff 100644 (file)
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -6774,6 +6774,7 @@ err_mp_init_secondary:
        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;

diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index 7ee468fca2c9d789bcca3b4674646ee7b2fb2914..4412da3392ac302f5f6137739c2866fdedb91513 100644 (file)
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -2917,6 +2917,7 @@ err_mp_init_secondary:
        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;
 

diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index 75292799b4f2d7869b90a488cb82764f93c879c6..a84da152d7dd8cded5bf60d743f9dcae8d304c8a 100644 (file)
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -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)
 {

diff --git a/drivers/net/hns3/hns3_rxtx.h b/drivers/net/hns3/hns3_rxtx.h
index cd042009a21580a1e04d18ffa9a679f10b7d57bb..82d5aa0fd6c30d44186b4857c10ea598a9eb739b 100644 (file)
--- a/drivers/net/hns3/hns3_rxtx.h
+++ b/drivers/net/hns3/hns3_rxtx.h
@@ -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_ */