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net/hns3: fix triggering reset procedure in slave process

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Currently, reset related operations can only be performed in the primary
process and are not allowed in the slave process in hns3 PMD driver.

In the internal function interface named hns3_cmd_send used for
communication between driver and firmware, if the wrong head value is
detected in the static subfunction hns3_cmd_csq_clean, driver will
trigger a function level reset to make the hardware work normally again.

This patch adds check condition to prevent triggering reset procedure in
the slave process to avoid failure.

Fixes: 2790c64647 ("net/hns3: support device reset")
Cc: stable@dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
This commit is contained in:
Chengwen Feng 2020-01-09 11:15:59 +08:00 committed by Ferruh Yigit
parent eee015976b
commit a1f381ad53
1 changed files with 4 additions and 4 deletions
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8
drivers/net/hns3/hns3_cmd.c
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@ -215,12 +215,12 @@ hns3_cmd_csq_clean(struct hns3_hw *hw)
head = hns3_read_dev(hw, HNS3_CMDQ_TX_HEAD_REG);
if (!is_valid_csq_clean_head(csq, head)) {
struct hns3_adapter *hns = HNS3_DEV_HW_TO_ADAPTER(hw);
hns3_err(hw, "wrong cmd head (%u, %u-%u)", head,
csq->next_to_use, csq->next_to_clean);
rte_atomic16_set(&hw->reset.disable_cmd, 1);
hns3_schedule_delayed_reset(hns);
if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
rte_atomic16_set(&hw->reset.disable_cmd, 1);
hns3_schedule_delayed_reset(HNS3_DEV_HW_TO_ADAPTER(hw));
}
return -EIO;
}