netdev - Re: [PATCH net-next] net: thunderx: Fix transmit queue timeout issue

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Date:   Wed, 30 Nov 2016 14:11:21 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     sunil.kovvuri@...il.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, sgoutham@...ium.com
Subject: Re: [PATCH net-next] net: thunderx: Fix transmit queue timeout
 issue

From: sunil.kovvuri@...il.com
Date: Tue, 29 Nov 2016 17:10:20 +0530

> +		/* Check again, incase another cpu freed descriptors */
> +		if (atomic_read(&sq->free_cnt) > MIN_SQ_DESC_PER_PKT_XMIT) {
> +			netif_tx_start_queue(txq);

You have to use netif_tx_wake_queue() any time you restart a queue after bringing
the device up.