net: Add NETIF_F_FCOE_MTU to indicate support for a different MTU for FCoE
Add NETIF_F_FCOE_MTU to indicate that the NIC can support a secondary MTU for converged traffic of LAN and Fiber Channel over Ethernet (FCoE). The MTU for FCoE is 2158 = 14 (FCoE header) + 24 (FC header) + 2112 (FC max payload) + 4 (FC CRC) + 4 (FCoE trailer). Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -701,6 +701,7 @@ struct net_device
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/* the GSO_MASK reserves bits 16 through 23 */
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#define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */
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#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */
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#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
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/* Segmentation offload features */
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#define NETIF_F_GSO_SHIFT 16
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