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net/hns3: fix Tx prepare after stop

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In some special scenarios, such as TSO scenarios, the user layer may need
to call the tx_pkt_prepare(), and then call tx_pkt_burst() to send packets.
If the return value of tx_pkt_parepare() isn't equal to the numbers of
packets requested to send, warning message may be printed at the user
layer. Currently, tx_pkt_prepare() is assigned to dummy function when
dev_stop() is called in hns3 PMD. At this moment, if user layer continues
to send packets, the warning message will always be printed. So this patch
modifies the address to NULL.

Fixes: 2790c6464725 ("net/hns3: support device reset")
Cc: stable@dpdk.org

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
This commit is contained in:
Huisong Li 2021-07-17 10:02:56 +08:00 committed by Thomas Monjalon
parent 9b290a3a63
commit 1cc574c41a
1 changed files with 1 additions and 1 deletions
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2
drivers/net/hns3/hns3_rxtx.c
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@ -4386,7 +4386,7 @@ void hns3_set_rxtx_function(struct rte_eth_dev *eth_dev)
} else {
eth_dev->rx_pkt_burst = hns3_dummy_rxtx_burst;
eth_dev->tx_pkt_burst = hns3_dummy_rxtx_burst;
eth_dev->tx_pkt_prepare = hns3_dummy_rxtx_burst;
eth_dev->tx_pkt_prepare = NULL;
}
}