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net/hns3: fix flow control exception

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In multi-TC scenarios, MAC pause is not supported. Otherwise, only
TC0 can trigger pause frames, and other TCs cannot trigger pause
frames. In this case, flow control does not meet the expectation.

Fixes: 62e3ccc2b9 ("net/hns3: support flow control")
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 2021-03-31 18:01:39 +08:00 committed by Ferruh Yigit
parent 39c4fe7042
commit f1c555219f
1 changed files with 5 additions and 0 deletions
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5
drivers/net/hns3/hns3_ethdev.c
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@ -5554,6 +5554,11 @@ hns3_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
return -EOPNOTSUPP;
}
if (hw->num_tc > 1) {
hns3_err(hw, "in multi-TC scenarios, MAC pause is not supported.");
return -EOPNOTSUPP;
}
hns3_get_fc_mode(hw, fc_conf->mode);
if (hw->requested_mode == hw->current_mode &&
pf->pause_time == fc_conf->pause_time)