skge: add GRO support
- napi_gro_flush() is exported from net/core/dev.c, to avoid
an irq_save/irq_restore in the packet receive path.
- use napi_gro_receive() instead of netif_receive_skb()
- use napi_gro_flush() before calling __napi_complete()
- turn on NETIF_F_GRO by default
- Tested on a Marvell 88E8001 Gigabit NIC
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 40e5c46..a8a6358 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -3178,8 +3178,7 @@
skb = skge_rx_get(dev, e, control, rd->status, rd->csum2);
if (likely(skb)) {
- netif_receive_skb(skb);
-
+ napi_gro_receive(napi, skb);
++work_done;
}
}
@@ -3192,6 +3191,7 @@
if (work_done < to_do) {
unsigned long flags;
+ napi_gro_flush(napi);
spin_lock_irqsave(&hw->hw_lock, flags);
__napi_complete(napi);
hw->intr_mask |= napimask[skge->port];
@@ -3849,6 +3849,7 @@
dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
skge->rx_csum = 1;
}
+ dev->features |= NETIF_F_GRO;
/* read the mac address */
memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);