Yi Zou 6247e08618
net: add ndo_fcoe_ddp_target() to support FCoE DDP in target mode ...
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 <yi.zou@intel.com >
Signed-off-by: Kiran Patil <kiran.patil@intel.com >
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com >
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com >
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6247e08618