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| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2016-12-07 19:34:37 -0800 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-12-11 15:29:42 -0500 |
| commit | 5dc806052a9fc8c44e111646f9a9f436877749d0 (patch) | |
| tree | 05d841ed7bcd9c4ffbbe51dddd9f63574bad09fb /include | |
| parent | c64607aa8abd16ba584523bdf83a708fae91986a (diff) | |
| download | linux-5dc806052a9fc8c44e111646f9a9f436877749d0.tar.gz linux-5dc806052a9fc8c44e111646f9a9f436877749d0.tar.bz2 linux-5dc806052a9fc8c44e111646f9a9f436877749d0.zip | |
IB/rdmavt, IB/hfi1, IB/qib: Add inlines for mtu division
Add rvt_div_round_up_mtu() and rvt_div_mtu() routines to
do the computation based on the pmtu and the log_pmtu.
Change divides in qib, hfi1 to use the new inlines.
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/rdmavt_qp.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h index 04facda681e0..f3dbd157ae5c 100644 --- a/include/rdma/rdmavt_qp.h +++ b/include/rdma/rdmavt_qp.h @@ -582,7 +582,29 @@ static inline void rvt_qp_swqe_complete( } } -extern const int ib_rvt_state_ops[]; +/** + * @qp - the qp pair + * @len - the length + * + * Perform a shift based mtu round up divide + */ +static inline u32 rvt_div_round_up_mtu(struct rvt_qp *qp, u32 len) +{ + return (len + qp->pmtu - 1) >> qp->log_pmtu; +} + +/** + * @qp - the qp pair + * @len - the length + * + * Perform a shift based mtu divide + */ +static inline u32 rvt_div_mtu(struct rvt_qp *qp, u32 len) +{ + return len >> qp->log_pmtu; +} + +extern const int ib_rvt_state_ops[]; struct rvt_dev_info; int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err); |