From 4c425588e0d72c9c55024752b0f6e709c96787ff Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Wed, 6 Jan 2010 12:48:55 -0800 Subject: [PATCH] IB/mlx4: Initialize SRQ scatter entries when creating an SRQ As for memfree mthca hardware, ConnectX also requires SRQ WQE scatter entries to be initialized with the invalid L_Key at SRQ creation time. Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/srq.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c index d42565258fb7..cf8085bcbd6d 100644 --- a/drivers/infiniband/hw/mlx4/srq.c +++ b/drivers/infiniband/hw/mlx4/srq.c @@ -74,6 +74,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, struct mlx4_ib_dev *dev = to_mdev(pd->device); struct mlx4_ib_srq *srq; struct mlx4_wqe_srq_next_seg *next; + struct mlx4_wqe_data_seg *scatter; int desc_size; int buf_size; int err; @@ -149,6 +150,11 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, next = get_wqe(srq, i); next->next_wqe_index = cpu_to_be16((i + 1) & (srq->msrq.max - 1)); + + for (scatter = (void *) (next + 1); + (void *) scatter < (void *) next + desc_size; + ++scatter) + scatter->lkey = cpu_to_be32(MLX4_INVALID_LKEY); } err = mlx4_mtt_init(dev->dev, srq->buf.npages, srq->buf.page_shift, -- 2.39.5