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Commit eeb69aa4 authored by Ben Greear's avatar Ben Greear Committed by Jeff Kirsher
Browse files

8139too: Support RX-FCS flag. 



This allows the NIC to pass the Ethernet FCS on up
the stack, and is useful when sniffing networks.

Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
parent d95089dc

drivers/net/ethernet/realtek/8139too.c

+5 −1
Original line number Original line Diff line number Diff line
@@ -1023,6 +1023,7 @@ static int __devinit rtl8139_init_one (struct pci_dev *pdev, 
	dev->vlan_features = dev->features;

	dev->vlan_features = dev->features;





	dev->hw_features |= NETIF_F_RXALL;

	dev->hw_features |= NETIF_F_RXALL;

	dev->hw_features |= NETIF_F_RXFCS;





	dev->irq = pdev->irq;

	dev->irq = pdev->irq;
@@ -1970,7 +1971,10 @@ static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, 
		/* read size+status of next frame from DMA ring buffer */

		/* read size+status of next frame from DMA ring buffer */

		rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset));

		rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset));

		rx_size = rx_status >> 16;

		rx_size = rx_status >> 16;

		if (likely(!(dev->features & NETIF_F_RXFCS)))

			pkt_size = rx_size - 4;

			pkt_size = rx_size - 4;

		else

			pkt_size = rx_size;





		netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n",

		netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n",

			  __func__, rx_status, rx_size, cur_rx);

			  __func__, rx_status, rx_size, cur_rx);