IB/hfi1: Remove unnecessary fecn and becn fields
packet->fecn and packet->becn are calculated in the hot path
and are never used. Remove these fields as they show to be
costly in a profile. Also, remove initialization for
becn and fecn in process_ecn() as they're unconditionally
assigned in the function and ensure fecn and becn variables
use a boolean type.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
diff --git a/include/rdma/ib_hdrs.h b/include/rdma/ib_hdrs.h
index 6ee9854..6e35416 100644
--- a/include/rdma/ib_hdrs.h
+++ b/include/rdma/ib_hdrs.h
@@ -313,16 +313,14 @@ static inline u32 ib_bth_get_qpn(struct ib_other_headers *ohdr)
return (u32)((be32_to_cpu(ohdr->bth[1])) & IB_QPN_MASK);
}
-static inline u8 ib_bth_get_becn(struct ib_other_headers *ohdr)
+static inline bool ib_bth_get_becn(struct ib_other_headers *ohdr)
{
- return (u8)((be32_to_cpu(ohdr->bth[1]) >> IB_BECN_SHIFT) &
- IB_BECN_MASK);
+ return (ohdr->bth[1]) & cpu_to_be32(IB_BECN_SMASK);
}
-static inline u8 ib_bth_get_fecn(struct ib_other_headers *ohdr)
+static inline bool ib_bth_get_fecn(struct ib_other_headers *ohdr)
{
- return (u8)((be32_to_cpu(ohdr->bth[1]) >> IB_FECN_SHIFT) &
- IB_FECN_MASK);
+ return (ohdr->bth[1]) & cpu_to_be32(IB_FECN_SMASK);
}
static inline u8 ib_bth_get_tver(struct ib_other_headers *ohdr)