Commit 7a3c3a12 authored by Selvin Xavier's avatar Selvin Xavier Committed by Jason Gunthorpe
Browse files

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: default avatarLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 690ea7fe

drivers/infiniband/hw/bnxt_re/ib_verbs.c

+2 −1
Original line number Diff line number Diff line
@@ -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;

}