IB/hfi1: Look up ibport using a pointer in receive path
In the receive path, hfi1_ibport is looked up by indexing into an array. A profile shows this to be expensive. The receive context data has a pointer to the ibport data, use that pointer instead. Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
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