From: Eric Dumazet <eric.dumazet@gmail.com>
To: Ben Hutchings <bhutchings@solarflare.com>
Cc: Roland Stigge <stigge@antcom.de>,
davem@davemloft.net, jeffrey.t.kirsher@intel.com,
alexander.h.duyck@intel.com, eilong@broadcom.com,
ian.campbell@citrix.com, netdev@vger.kernel.org,
w.sang@pengutronix.de, linux-kernel@vger.kernel.org,
kevin.wells@nxp.com, linux-arm-kernel@lists.infradead.org,
arnd@arndb.de, baruch@tkos.co.il, joe@perches.com
Subject: Re: [PATCH v4] lpc32xx: Added ethernet driver
Date: Mon, 05 Mar 2012 16:49:18 -0800 [thread overview]
Message-ID: <1330994958.9504.2.camel@edumazet-glaptop> (raw)
In-Reply-To: <1330987524.2538.61.camel@bwh-desktop>
On Mon, 2012-03-05 at 22:45 +0000, Ben Hutchings wrote:
> On Mon, 2012-03-05 at 22:40 +0100, Roland Stigge wrote:
> [...]
...
> > + /* Copy packet from buffer */
> > + memcpy(prdbuf,
> > + pldat->rx_buff_v[rxconsidx], len);
> > +
> > + /* Pass to upper layer */
> > + skb->protocol = eth_type_trans(skb, ndev);
> > + netif_rx(skb);
> > + ndev->last_rx = jiffies;
>
> Drivers don't need to set last_rx any more.
Also, a NAPI driver should call netif_receive_skb() instead of
netif_rx()
netif_rx() is more expensive because of additional queue, while
netif_receive_skb() directly calls the upper stacks.
next prev parent reply other threads:[~2012-03-06 0:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-05 21:40 [PATCH v4] lpc32xx: Added ethernet driver Roland Stigge
2012-03-05 22:45 ` Ben Hutchings
2012-03-06 0:49 ` Eric Dumazet [this message]
2012-03-06 1:26 ` Ben Hutchings
2012-03-06 8:53 ` Roland Stigge
2012-03-06 12:13 ` Eric Dumazet
2012-03-06 10:43 ` [PATCH v4] lpc32xx: Added ethernet driver: smp_wmb() Roland Stigge
2012-03-06 14:03 ` Ben Hutchings
2012-03-06 14:17 ` Russell King - ARM Linux
2012-03-06 15:37 ` Ben Hutchings
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