linux-kernel - Re: [PATCH net-next] net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)

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Message-ID: <1466100412.27155.66.camel@decadent.org.uk>
Date:	Thu, 16 Jun 2016 19:06:52 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Benjamin Poirier <benjamin.poirier@...il.com>,
	Netanel Belgazal <netanel@...apurnalabs.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	linux-kernel@...r.kernel.org, zorik@...apurnalabs.com,
	saeed@...apurnalabs.com, alex@...apurnalabs.com, msw@...zon.com,
	aliguori@...zon.com, antoine.tenart@...e-electrons.com
Subject: Re: [PATCH net-next] net: ena: Add a driver for Amazon Elastic
 Network Adapters (ENA)

On Thu, 2016-06-16 at 10:55 -0700, Benjamin Poirier wrote:
> On 2016/06/13 11:46, Netanel Belgazal wrote:
[...]
> > +static ssize_t ena_show_small_copy_len(struct device *dev,
> > +				       struct device_attribute *attr, char *buf)
> > +{
> > +	struct ena_adapter *adapter = dev_get_drvdata(dev);
> > +
> > +	return sprintf(buf, "%d\n", adapter->small_copy_len);
> > +}
> > +
> > +static DEVICE_ATTR(small_copy_len, S_IRUGO | S_IWUSR, ena_show_small_copy_len,
> > +		   ena_store_small_copy_len);
> 
> This is what many other drivers call (rx_)copybreak. Perhaps it's time
> to add it to ethtool as well?
[...]

There is the 'tunable' ethtool API for random parameters like
rx_copybreak.  The ethtool utility doesn't support it yet, though.

Ben.

-- 
Ben Hutchings
Life is what happens to you while you're busy making other plans.
                                                               - John
Lennon

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