From 1c69fc2a9012e160c8d459f63df74a6b01db8322 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 6 Feb 2008 21:07:54 -0800 Subject: IB/mlx4: Consolidate code to get an entry from a struct mlx4_buf We use struct mlx4_buf for kernel QP, CQ and SRQ buffers, and the code to look up an entry is duplicated in get_cqe_from_buf() and the QP and SRQ versions of get_wqe(). Factor this out into mlx4_buf_offset(). This will also make it easier to switch over to using vmap() for buffers. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/cq.c | 8 +------- drivers/infiniband/hw/mlx4/qp.c | 6 +----- drivers/infiniband/hw/mlx4/srq.c | 8 +------- 3 files changed, 3 insertions(+), 19 deletions(-) (limited to 'drivers/infiniband/hw/mlx4') diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index 7950aa6e818..8ac7b973f87 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -64,13 +64,7 @@ static void mlx4_ib_cq_event(struct mlx4_cq *cq, enum mlx4_event type) static void *get_cqe_from_buf(struct mlx4_ib_cq_buf *buf, int n) { - int offset = n * sizeof (struct mlx4_cqe); - - if (buf->buf.nbufs == 1) - return buf->buf.u.direct.buf + offset; - else - return buf->buf.u.page_list[offset >> PAGE_SHIFT].buf + - (offset & (PAGE_SIZE - 1)); + return mlx4_buf_offset(&buf->buf, n * sizeof (struct mlx4_cqe)); } static void *get_cqe(struct mlx4_ib_cq *cq, int n) diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 8cba9c532e6..376db730bc7 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -96,11 +96,7 @@ static int is_qp0(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp) static void *get_wqe(struct mlx4_ib_qp *qp, int offset) { - if (qp->buf.nbufs == 1) - return qp->buf.u.direct.buf + offset; - else - return qp->buf.u.page_list[offset >> PAGE_SHIFT].buf + - (offset & (PAGE_SIZE - 1)); + return mlx4_buf_offset(&qp->buf, offset); } static void *get_recv_wqe(struct mlx4_ib_qp *qp, int n) diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c index e7e9a3d0dac..beaa3b06cf5 100644 --- a/drivers/infiniband/hw/mlx4/srq.c +++ b/drivers/infiniband/hw/mlx4/srq.c @@ -38,13 +38,7 @@ static void *get_wqe(struct mlx4_ib_srq *srq, int n) { - int offset = n << srq->msrq.wqe_shift; - - if (srq->buf.nbufs == 1) - return srq->buf.u.direct.buf + offset; - else - return srq->buf.u.page_list[offset >> PAGE_SHIFT].buf + - (offset & (PAGE_SIZE - 1)); + return mlx4_buf_offset(&srq->buf, n << srq->msrq.wqe_shift); } static void mlx4_ib_srq_event(struct mlx4_srq *srq, enum mlx4_event type) -- cgit v1.2.3