From: Florian Fainelli Date: Mon, 21 Jul 2014 22:29:26 +0000 (-0700) Subject: net: bcmgenet: handle UMAC_IRQ_MPD_R interrupt bit X-Git-Tag: firefly_0821_release~176^2~3474^2~117^2~3 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8fdb0e0fb972f9665dd21aa69825ba748ebbdf45;p=firefly-linux-kernel-4.4.55.git net: bcmgenet: handle UMAC_IRQ_MPD_R interrupt bit Handle UMAC_IRQ_MPD_R interrupt bit in our workqueue to make sure that we properly re-configure the GENET adapter from Wake-on-LAN. bcmgenet_power_up() makes sure that we will not leave the UniMAC hardware in MagicPacket matching mode, since that would prevent any other packet from being received. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index f5118f4cccf3..319b94381d2e 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1836,6 +1836,13 @@ static void bcmgenet_irq_task(struct work_struct *work) netif_dbg(priv, intr, priv->dev, "%s\n", __func__); + if (priv->irq0_stat & UMAC_IRQ_MPD_R) { + priv->irq0_stat &= ~UMAC_IRQ_MPD_R; + netif_dbg(priv, wol, priv->dev, + "magic packet detected, waking up\n"); + bcmgenet_power_up(priv, GENET_POWER_WOL_MAGIC); + } + /* Link UP/DOWN event */ if ((priv->hw_params->flags & GENET_HAS_MDIO_INTR) && (priv->irq0_stat & (UMAC_IRQ_LINK_UP|UMAC_IRQ_LINK_DOWN))) {