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Commit 4c425588 authored by Jack Morgenstein's avatar Jack Morgenstein Committed by Roland Dreier
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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: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 6b7b2849

drivers/infiniband/hw/mlx4/srq.c

+6 −0
Original line number Diff line number Diff line
@@ -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,