[PATCH 4/6] net/hns3: separate tx prepare from getting Tx function

[Dongdong Liu]

From: Huisong Li <lihuis...@huawei.com>

Separate getting tx prepare from hns3_get_tx_function by extracting
an independent function.

Fixes: d7ec2c076579 ("net/hns3: select Tx prepare based on Tx offload")
Cc: sta...@dpdk.org

Signed-off-by: Huisong Li <lihuis...@huawei.com>
Signed-off-by: Dongdong Liu <liudongdo...@huawei.com>
---
 drivers/net/hns3/hns3_rxtx.c | 32 ++++++++++++++------------------
 drivers/net/hns3/hns3_rxtx.h |  3 +--
 2 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index 921d72d69d..9b2bd02857 100644
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -4324,26 +4324,30 @@ hns3_get_tx_prep_needed(struct rte_eth_dev *dev)
                RTE_ETH_TX_OFFLOAD_GENEVE_TNL_TSO)
 
        uint64_t tx_offload = dev->data->dev_conf.txmode.offloads;
+
        if (tx_offload & HNS3_DEV_TX_CSKUM_TSO_OFFLOAD_MASK)
                return true;
 
        return false;
 }
 
+static eth_tx_prep_t
+hns3_get_tx_prepare(struct rte_eth_dev *dev)
+{
+       return hns3_get_tx_prep_needed(dev) ? hns3_prep_pkts : NULL;
+}
+
 eth_tx_burst_t
-hns3_get_tx_function(struct rte_eth_dev *dev, eth_tx_prep_t *prep)
+hns3_get_tx_function(struct rte_eth_dev *dev)
 {
        struct hns3_adapter *hns = dev->data->dev_private;
        bool vec_allowed, sve_allowed, simple_allowed;
-       bool vec_support, tx_prepare_needed;
+       bool vec_support;
 
        vec_support = hns3_tx_check_vec_support(dev) == 0;
        vec_allowed = vec_support && hns3_get_default_vec_support();
        sve_allowed = vec_support && hns3_get_sve_support();
        simple_allowed = hns3_tx_check_simple_support(dev);
-       tx_prepare_needed = hns3_get_tx_prep_needed(dev);
-
-       *prep = NULL;
 
        if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_VEC && vec_allowed)
                return hns3_xmit_pkts_vec;
@@ -4351,19 +4355,14 @@ hns3_get_tx_function(struct rte_eth_dev *dev, 
eth_tx_prep_t *prep)
                return hns3_xmit_pkts_vec_sve;
        if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_SIMPLE && simple_allowed)
                return hns3_xmit_pkts_simple;
-       if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_COMMON) {
-               if (tx_prepare_needed)
-                       *prep = hns3_prep_pkts;
+       if (hns->tx_func_hint == HNS3_IO_FUNC_HINT_COMMON)
                return hns3_xmit_pkts;
-       }
 
        if (vec_allowed)
                return hns3_xmit_pkts_vec;
        if (simple_allowed)
                return hns3_xmit_pkts_simple;
 
-       if (tx_prepare_needed)
-               *prep = hns3_prep_pkts;
        return hns3_xmit_pkts;
 }
 
@@ -4403,7 +4402,6 @@ hns3_set_rxtx_function(struct rte_eth_dev *eth_dev)
 {
        struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
        struct hns3_adapter *hns = eth_dev->data->dev_private;
-       eth_tx_prep_t prep = NULL;
 
        if (hns->hw.adapter_state == HNS3_NIC_STARTED &&
            __atomic_load_n(&hns->hw.reset.resetting, __ATOMIC_RELAXED) == 0) {
@@ -4411,8 +4409,8 @@ hns3_set_rxtx_function(struct rte_eth_dev *eth_dev)
                eth_dev->rx_descriptor_status = hns3_dev_rx_descriptor_status;
                eth_dev->tx_pkt_burst = hw->set_link_down ?
                                        rte_eth_pkt_burst_dummy :
-                                       hns3_get_tx_function(eth_dev, &prep);
-               eth_dev->tx_pkt_prepare = prep;
+                                       hns3_get_tx_function(eth_dev);
+               eth_dev->tx_pkt_prepare = hns3_get_tx_prepare(eth_dev);
                eth_dev->tx_descriptor_status = hns3_dev_tx_descriptor_status;
        } else {
                eth_dev->rx_pkt_burst = rte_eth_pkt_burst_dummy;
@@ -4758,10 +4756,8 @@ hns3_stop_tx_datapath(struct rte_eth_dev *dev)
 void
 hns3_start_tx_datapath(struct rte_eth_dev *dev)
 {
-       eth_tx_prep_t prep = NULL;
-
-       dev->tx_pkt_burst = hns3_get_tx_function(dev, &prep);
-       dev->tx_pkt_prepare = prep;
+       dev->tx_pkt_burst = hns3_get_tx_function(dev);
+       dev->tx_pkt_prepare = hns3_get_tx_prepare(dev);
        hns3_eth_dev_fp_ops_config(dev);
 
        if (rte_eal_process_type() == RTE_PROC_SECONDARY)
diff --git a/drivers/net/hns3/hns3_rxtx.h b/drivers/net/hns3/hns3_rxtx.h
index ea1a805491..38c3581312 100644
--- a/drivers/net/hns3/hns3_rxtx.h
+++ b/drivers/net/hns3/hns3_rxtx.h
@@ -740,8 +740,7 @@ int hns3_tx_burst_mode_get(struct rte_eth_dev *dev,
 const uint32_t *hns3_dev_supported_ptypes_get(struct rte_eth_dev *dev);
 void hns3_init_rx_ptype_tble(struct rte_eth_dev *dev);
 void hns3_set_rxtx_function(struct rte_eth_dev *eth_dev);
-eth_tx_burst_t hns3_get_tx_function(struct rte_eth_dev *dev,
-                                   eth_tx_prep_t *prep);
+eth_tx_burst_t hns3_get_tx_function(struct rte_eth_dev *dev);
 
 uint32_t hns3_get_tqp_intr_reg_offset(uint16_t tqp_intr_id);
 void hns3_set_queue_intr_gl(struct hns3_hw *hw, uint16_t queue_id,
-- 
2.22.0