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Commit efd7f400 authored by Maor Gottlieb's avatar Maor Gottlieb Committed by Doug Ledford
Browse files

IB/mlx5: Validate requested RQT size 



Validate that the requested size of RQT is supported by firmware.

Fixes: c5f90929 ('IB/mlx5: Add Receive Work Queue Indirection table operations')
Signed-off-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 90be7c8a

drivers/infiniband/hw/mlx5/qp.c

+8 −0
Original line number Diff line number Diff line
@@ -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);