netdev - Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.

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Date:	Mon, 31 May 2010 18:24:09 +0200
From:	Krzysztof Halasa <khc@...waw.pl>
To:	Richard Cochran <richardcochran@...il.com>
Cc:	netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.

Richard Cochran <richardcochran@...il.com> writes:

> This patch adds support for the IFF_ALLMULTI flag. Previously only the
> IFF_PROMISC flag was supported.
>
> Signed-off-by: Richard Cochran <richard.cochran@...cron.at>
> ---
>  drivers/net/arm/ixp4xx_eth.c |   11 +++++++++++
>  1 files changed, 11 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
> index 6be8b09..42b4361 100644
> --- a/drivers/net/arm/ixp4xx_eth.c
> +++ b/drivers/net/arm/ixp4xx_eth.c
> @@ -739,6 +739,17 @@ static void eth_set_mcast_list(struct net_device *dev)
>  	struct dev_mc_list *mclist;
>  	u8 diffs[ETH_ALEN], *addr;
>  	int i;
> +	static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
> +
> +	if (dev->flags & IFF_ALLMULTI) {
> +		for (i = 0; i < ETH_ALEN; i++) {
> +			__raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
> +			__raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
> +		}
> +		__raw_writel(DEFAULT_RX_CNTRL0 | RX_CNTRL0_ADDR_FLTR_EN,
> +			&port->regs->rx_control[0]);
> +		return;
> +	}
>  
>  	if ((dev->flags & IFF_PROMISC) || netdev_mc_empty(dev)) {
>  		__raw_writel(DEFAULT_RX_CNTRL0 & ~RX_CNTRL0_ADDR_FLTR_EN,

Acked-By: Krzysztof Halasa <khc@...waw.pl>
-- 
Krzysztof Halasa
--
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