diff options
| author | Sebastian Sanchez <sebastian.sanchez@intel.com> | 2018-02-01 21:46:38 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-02-02 01:43:29 +0300 |
| commit | ca85bb1ca9948899682fe7170636e465599ea8e7 (patch) | |
| tree | 19720313686b1cdd9f0f5a8e43d75dfdf0e78cb0 /include | |
| parent | bdaf96f6500880401fe692cd0bf57afb596b135c (diff) | |
| download | linux-ca85bb1ca9948899682fe7170636e465599ea8e7.tar.xz | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/ib_hdrs.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/include/rdma/ib_hdrs.h b/include/rdma/ib_hdrs.h index 6ee985494acf..6e35416170a3 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) |