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e1000e: Support RXFCS feature flag.

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This enables enabling/disabling reception of the Ethernet
FCS.  This can be useful when sniffing packets.

For e1000e, enabling RXFCS can change the default
behaviour for how the NIC handles CRC.  Disabling RXFCS
will take the NIC back to defaults, which can be configured
as part of the module options.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Ben Greear
2012-02-11 15:39:25 +00:00
committed by Jeff Kirsher
parent 36eabda3d0
commit 0184039a4b
3 changed files with 39 additions and 8 deletions
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1
drivers/net/ethernet/intel/e1000e/e1000.h
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@@ -461,6 +461,7 @@ struct e1000_info {
#define FLAG2_CHECK_PHY_HANG (1 << 9)
#define FLAG2_NO_DISABLE_RX (1 << 10)
#define FLAG2_PCIM2PCI_ARBITER_WA (1 << 11)
#define FLAG2_DFLT_CRC_STRIPPING (1 << 12)
#define E1000_RX_DESC_PS(R, i) \
(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))