[PATCH 1/2] igb: Support sending custom Ethernet FCS.
From: <hidden>
Date: 2012-03-06 01:30:48
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Ben Greear <redacted> Including bad FCS, used generate frames with bad FCS to test other system's handling of RX of bad packets. Signed-off-by: Ben Greear <redacted> --- :100644 100644 fda8247... e4058ac... M drivers/net/ethernet/intel/igb/igb_main.c drivers/net/ethernet/intel/igb/igb_main.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index fda8247..e4058ac 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c@@ -1964,6 +1964,8 @@ static int __devinit igb_probe(struct pci_dev *pdev, NETIF_F_IPV6_CSUM | NETIF_F_SG; + netdev->priv_flags |= IFF_SUPP_NOFCS; + if (pci_using_dac) { netdev->features |= NETIF_F_HIGHDMA; netdev->vlan_features |= NETIF_F_HIGHDMA;
@@ -4292,6 +4294,8 @@ static void igb_tx_map(struct igb_ring *tx_ring, /* write last descriptor with RS and EOP bits */ cmd_type |= cpu_to_le32(size) | cpu_to_le32(IGB_TXD_DCMD); + if (unlikely(skb->no_fcs)) + cmd_type &= ~(cpu_to_le32(E1000_ADVTXD_DCMD_IFCS)); tx_desc->read.cmd_type_len = cmd_type; /* set the timestamp */
--
1.7.3.4