From 881fccb8640bdd3533f5a98a99991aae23a5106b Mon Sep 17 00:00:00 2001 From: Don Hiatt Date: Wed, 8 Feb 2017 05:28:19 -0800 Subject: [PATCH] IB/hfi1: Add rvt_rnr_tbl_to_usec function Return usec from an index into ib_rvt_rnr_table. Reviewed-by: Mike Marciniszyn Signed-off-by: Don Hiatt Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/sw/rdmavt/qp.c | 11 +++++++++++ include/rdma/rdmavt_qp.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c index db4315f8f0c8..0b97598136b4 100644 --- a/drivers/infiniband/sw/rdmavt/qp.c +++ b/drivers/infiniband/sw/rdmavt/qp.c @@ -1954,6 +1954,17 @@ void rvt_rc_error(struct rvt_qp *qp, enum ib_wc_status err) } EXPORT_SYMBOL(rvt_rc_error); +/* + * rvt_rnr_tbl_to_usec - return index into ib_rvt_rnr_table + * @index - the index + * return usec from an index into ib_rvt_rnr_table + */ +unsigned long rvt_rnr_tbl_to_usec(u32 index) +{ + return ib_rvt_rnr_table[(index & RVT_AETH_CREDIT_MASK)]; +} +EXPORT_SYMBOL(rvt_rnr_tbl_to_usec); + static inline unsigned long rvt_aeth_to_usec(u32 aeth) { return ib_rvt_rnr_table[(aeth >> RVT_AETH_CREDIT_SHIFT) & diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h index 2f91fae8d23f..9767549ab42c 100644 --- a/include/rdma/rdmavt_qp.h +++ b/include/rdma/rdmavt_qp.h @@ -653,6 +653,7 @@ struct rvt_dev_info; void rvt_comm_est(struct rvt_qp *qp); int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err); void rvt_rc_error(struct rvt_qp *qp, enum ib_wc_status err); +unsigned long rvt_rnr_tbl_to_usec(u32 index); enum hrtimer_restart rvt_rc_rnr_retry(struct hrtimer *t); void rvt_add_rnr_timer(struct rvt_qp *qp, u32 aeth); void rvt_del_timers_sync(struct rvt_qp *qp); -- 2.20.1