RDMA/bnxt_re: Correct FRMR size calculation

FRMR WQE requires to provide the log2 value of the PBL and page size.  Use
the standard ilog2() to calculate the log2 value

Link: https://lore.kernel.org/r/1631709163-2287-11-git-send-email-selvin.xavier@broadcom.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 1654260611a7fa826a273cb0e847793b69de7257..938088f86d3d7a3ca2a578aec3f075425020c83f 100644 (file)
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -2488,7 +2488,8 @@ static int bnxt_re_build_reg_wqe(const struct ib_reg_wr *wr,
 
        wqe->frmr.l_key = wr->key;
        wqe->frmr.length = wr->mr->length;
-       wqe->frmr.pbl_pg_sz_log = (wr->mr->page_size >> PAGE_SHIFT_4K) - 1;
+       wqe->frmr.pbl_pg_sz_log = ilog2(PAGE_SIZE >> PAGE_SHIFT_4K);
+       wqe->frmr.pg_sz_log = ilog2(wr->mr->page_size >> PAGE_SHIFT_4K);
        wqe->frmr.va = wr->mr->iova;
        return 0;
 }