[PATCH 2/7] net: add FCoE offload support through net_device
From: Yi Zou <hidden>
Date: 2009-02-19 20:56:57
Also in:
linux-scsi
Subsystem:
networking drivers, networking [general], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This adds a "struct net_fcoe_ops *fcoe_ops" to net_device struct so any network adapter driver can provide Fiber Channle over Ethernet (FCoE) offload support through net_device. The fcoe_ops is only available when FCoE is enabled in kernel as built-in or module driver. Signed-off-by: Yi Zou <redacted> --- include/linux/netdevice.h | 8 ++++++++ include/linux/netfcoe.h | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 44 insertions(+), 0 deletions(-) create mode 100644 include/linux/netfcoe.h
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ec54785..faf85be 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h@@ -47,6 +47,10 @@ #include <net/dcbnl.h> #endif +#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) +#include <linux/netfcoe.h> +#endif + struct vlan_group; struct ethtool_ops; struct netpoll_info;
@@ -840,6 +844,10 @@ struct net_device struct dcbnl_rtnl_ops *dcbnl_ops; #endif +#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) + struct net_fcoe_ops *fcoe_ops; +#endif + #ifdef CONFIG_COMPAT_NET_DEV_OPS struct { int (*init)(struct net_device *dev);
diff --git a/include/linux/netfcoe.h b/include/linux/netfcoe.h
new file mode 100644
index 0000000..9d6d64d
--- /dev/null
+++ b/include/linux/netfcoe.h@@ -0,0 +1,36 @@ +/* + * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ +#ifndef __NET_FCOE_H__ +#define __NET_FCOE_H__ + +#define NET_FCOE_CRC (1 << 0) /* FC CRC32 offload */ +#define NET_FCOE_LSO (1 << 1) /* Large send offload */ +#define NET_FCOE_LRO (1 << 2) /* Large receive offload */ +/* + * Ops struct for FCoE enabled drivers to callback through the netdevice struct + */ +struct net_fcoe_ops { + u16 lro_xid; + u32 features; + int (*ddp_setup)(struct net_device *netdev, u16 xid, + struct scatterlist *sgl, unsigned int nents); + int (*ddp_done)(struct net_device *netdev, u16 xid); +}; + +#endif /* __NET_FCOE_H__ */