From: Yi Zou <[email protected]> The Fiber Channel over Ethernet (FCoE) Direct Data Placement (DDP) can also be used for FCoE target, where the DDP used for read I/O on an initiator can be used on an FCoE target to speed up the write I/O to the target from the initiator. The added ndo_fcoe_ddp_target() works in the similar way as the existing ndo_fcoe_ddp_setup() to allow the underlying hardware set up the DDP context accordingly when it gets called from the FCoE target implementation on top the existing Open-FCoE fcoe/libfc protocol stack so without losing the ability to provide DDP for read I/O as an initiator, it can also provide DDP offload to the write I/O coming from the initiator as a target.
Signed-off-by: Yi Zou <[email protected]> Signed-off-by: Kiran Patil <[email protected]> --- include/linux/netdevice.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index d971346..9aeaa39 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -820,6 +820,10 @@ struct net_device_ops { unsigned int sgc); int (*ndo_fcoe_ddp_done)(struct net_device *dev, u16 xid); + int (*ndo_fcoe_ddp_target)(struct net_device *dev, + u16 xid, + struct scatterlist *sgl, + unsigned int sgc); #define NETDEV_FCOE_WWNN 0 #define NETDEV_FCOE_WWPN 1 int (*ndo_fcoe_get_wwn)(struct net_device *dev, _______________________________________________ devel mailing list [email protected] https://lists.open-fcoe.org/mailman/listinfo/devel
