ixp4xx: Support the all multicast flag on the NPE devices.

This patch adds support for the IFF_ALLMULTI flag. Previously only the
IFF_PROMISC flag was supported.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-By: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
index 24df0325090c..ee2f8425dbe7 100644
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -738,6 +738,17 @@ static void eth_set_mcast_list(struct net_device *dev)
         struct netdev_hw_addr *ha;
         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,