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IB/hfi1: Remove unnecessary fecn and becn fields

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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>
This commit is contained in:
Sebastian Sanchez
2018-02-01 10:46:38 -08:00
committed by Jason Gunthorpe
parent bdaf96f650
commit ca85bb1ca9
7 changed files with 24 additions and 36 deletions
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10
include/rdma/ib_hdrs.h
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@@ -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)