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authorMaor Gottlieb <maorg@mellanox.com>2016-10-27 16:36:40 +0300
committerDoug Ledford <dledford@redhat.com>2016-11-16 20:03:44 -0500
commitefd7f40082a0dfd112eb87ff2124467a5739216f (patch)
treed7de053538cf744c5eb85853a02705d020551f91 /drivers
parent90be7c8ab72853ff9fc407f01518a898df1f3045 (diff)
IB/mlx5: Validate requested RQT size
Validate that the requested size of RQT is supported by firmware. Fixes: c5f9092936fe ('IB/mlx5: Add Receive Work Queue Indirection table operations') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/hw/mlx5/qp.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 41f4c2afbcdd..2be0d06b27dc 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -4815,6 +4815,14 @@ struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device,
udata->inlen))
return ERR_PTR(-EOPNOTSUPP);
+ if (init_attr->log_ind_tbl_size >
+ MLX5_CAP_GEN(dev->mdev, log_max_rqt_size)) {
+ mlx5_ib_dbg(dev, "log_ind_tbl_size = %d is bigger than supported = %d\n",
+ init_attr->log_ind_tbl_size,
+ MLX5_CAP_GEN(dev->mdev, log_max_rqt_size));
+ return ERR_PTR(-EINVAL);
+ }
+
min_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved);
if (udata->outlen && udata->outlen < min_resp_len)
return ERR_PTR(-EINVAL);