netdev - Re: [PATCH] net: Add MOXA ART SoCs ethernet driver

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Message-ID: <CACmBeS0ztqKWJ1uLKhb2EZdexspTq5t0uHZfPotHiAPHfkftoA@mail.gmail.com>
Date:	Sat, 20 Jul 2013 12:55:36 +0200
From:	Jonas Jensen <jonas.jensen@...il.com>
To:	netdev@...r.kernel.org
Cc:	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	arm@...nel.org, Jonas Jensen <jonas.jensen@...il.com>
Subject: Re: [PATCH] net: Add MOXA ART SoCs ethernet driver

I think this driver may have a bug.

After some time running ping successfully, the message "no TX space
for packet" is printed resulting in 100% packet loss.

The message is printed from .ndo_start_xmit and I think it may be
because of how priv->tx_desc_now is now set up in
moxart_mac_setup_desc_ring.

I will take a look at this and try to fix the issue.

Best regards,
Jonas
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