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net: hns3: add struct netdev_queue debug info for TX timeout

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When there is a TX timeout, we can tell if the driver or stack
has stopped the queue by looking at state field, and when has
the last packet transmited by looking at trans_start field.

So this patch prints these two field in the
hns3_get_tx_timeo_queue_info().

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yunsheng Lin 2019-10-31 19:23:17 +08:00 committed by David S. Miller
parent 3d77d0cb05
commit 647522a5ef
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -1792,6 +1792,9 @@ static bool hns3_get_tx_timeo_queue_info(struct net_device *ndev)
time_after(jiffies,
(trans_start + ndev->watchdog_timeo))) {
timeout_queue = i;
netdev_info(ndev, "queue state: 0x%lx, delta msecs: %u\n",
q->state,
jiffies_to_msecs(jiffies - trans_start));
break;
}
}