[net-next 12/16] r8169: Support RX-FCS flag.
From: Jeff Kirsher <hidden>
Date: 2012-02-24 10:13:18
Subsystem:
8169 10/100/1000 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Ben Greear <redacted> This allows the NIC to receive the Ethernet FCS and pass it up the stack, allowing sniffers and other interested programs to inspect the FCS. Signed-off-by: Ben Greear <redacted> --- drivers/net/ethernet/realtek/r8169.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 0517a6a..fbd855b 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c@@ -4186,6 +4186,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dev->hw_features &= ~NETIF_F_HW_VLAN_RX; dev->hw_features |= NETIF_F_RXALL; + dev->hw_features |= NETIF_F_RXFCS; tp->hw_start = cfg->hw_start; tp->event_slow = cfg->event_slow;
@@ -5773,7 +5774,10 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget process_pkt: addr = le64_to_cpu(desc->addr); - pkt_size = (status & 0x00003fff) - 4; + if (likely(!(dev->features & NETIF_F_RXFCS))) + pkt_size = (status & 0x00003fff) - 4; + else + pkt_size = status & 0x00003fff; /* * The driver does not support incoming fragmented
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1.7.7.6