On 12/17/2014 9:17 AM, Or Gerlitz wrote:
The MLX4_PROT_IB_IPV4 protocol should only be used with RoCEv2 and such. Removing this wrong usage allows to run multicast applications over RoCE.Fixes: d487ee77740c ('IB/mlx4: Use IBoE (RoCE) IP based GIDs in the port GID table') Reported-by: Carol Soto <[email protected]> Signed-off-by: Or Gerlitz <[email protected]> ---
Roland, you missed picking this one (was sent to you whole two months ago) for 3.19 and meanwhile some code went into mlx4 from the net-next tree which will cause a small collision here. I am traveling now and can't send you the revised patch but it should be very easy to generate, just 1-2 lines added. I would suggest for you to rebase against Dave's net tree or Linus tree, you should also see it from 0-days builds if you wait few hours.
drivers/infiniband/hw/mlx4/main.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index e861330..ea69975 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1221,8 +1221,7 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) struct mlx4_ib_qp *mqp = to_mqp(ibqp); u64 reg_id; struct mlx4_ib_steering *ib_steering = NULL; - enum mlx4_protocol prot = (gid->raw[1] == 0x0e) ? - MLX4_PROT_IB_IPV4 : MLX4_PROT_IB_IPV6; + enum mlx4_protocol prot = MLX4_PROT_IB_IPV6;if (mdev->dev->caps.steering_mode ==MLX4_STEERING_MODE_DEVICE_MANAGED) { @@ -1235,8 +1234,10 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), prot, ®_id); - if (err) + if (err) { + pr_err("multicast attach op failed, err %d\n", err); goto err_malloc; + }err = add_gid_entry(ibqp, gid);if (err) @@ -1284,8 +1285,7 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) struct net_device *ndev; struct mlx4_ib_gid_entry *ge; u64 reg_id = 0; - enum mlx4_protocol prot = (gid->raw[1] == 0x0e) ? - MLX4_PROT_IB_IPV4 : MLX4_PROT_IB_IPV6; + enum mlx4_protocol prot = MLX4_PROT_IB_IPV6;if (mdev->dev->caps.steering_mode ==MLX4_STEERING_MODE_DEVICE_MANAGED) {
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