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Date: Wed, 22 Jul 2009 16:29:09 -0700 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: netdev@...r.kernel.org, linux-scsi@...r.kernel.org, devel@...n-fcoe.org, gospo@...hat.com, Yi Zou <yi.zou@...el.com>, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next-2.6 PATCH 3/5] net: Add NETIF_F_FCOE_MTU to indicate support for a different MTU for FCoE From: Yi Zou <yi.zou@...el.com> 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@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- include/linux/netdevice.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9f25ab2..9192cdf 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -701,6 +701,7 @@ struct net_device /* the GSO_MASK reserves bits 16 through 23 */ #define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */ #define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */ +#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/ /* Segmentation offload features */ #define NETIF_F_GSO_SHIFT 16 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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