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net/mlx5e: Use query_special_contexts for mkeys

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Use query_sepcial_contexts in order to get the correct value of
terminate_scatter_list_mkey, as FW will change it for certain
configurations.

Link: https://lore.kernel.org/r/fff70d94258233effb0e34f3d62cb08a692f5af5.1673960981.git.leon@kernel.org
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Or Har-Toov 2023-01-17 15:14:51 +02:00 committed by Jason Gunthorpe
parent a419bfb763
commit 1b1e486883
1 changed files with 21 additions and 2 deletions
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23
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@ -665,6 +665,26 @@ static void mlx5e_rq_free_shampo(struct mlx5e_rq *rq)
mlx5e_rq_shampo_hd_free(rq);
}
static __be32 mlx5e_get_terminate_scatter_list_mkey(struct mlx5_core_dev *dev)
{
u32 out[MLX5_ST_SZ_DW(query_special_contexts_out)] = {};
u32 in[MLX5_ST_SZ_DW(query_special_contexts_in)] = {};
int res;
if (!MLX5_CAP_GEN(dev, terminate_scatter_list_mkey))
return MLX5_TERMINATE_SCATTER_LIST_LKEY;
MLX5_SET(query_special_contexts_in, in, opcode,
MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS);
res = mlx5_cmd_exec_inout(dev, query_special_contexts, in, out);
if (res)
return MLX5_TERMINATE_SCATTER_LIST_LKEY;
res = MLX5_GET(query_special_contexts_out, out,
terminate_scatter_list_mkey);
return cpu_to_be32(res);
}
static int mlx5e_alloc_rq(struct mlx5e_params *params,
struct mlx5e_xsk_param *xsk,
struct mlx5e_rq_param *rqp,
@ -829,8 +849,7 @@ static int mlx5e_alloc_rq(struct mlx5e_params *params,
/* check if num_frags is not a pow of two */
if (rq->wqe.info.num_frags < (1 << rq->wqe.info.log_num_frags)) {
wqe->data[f].byte_count = 0;
wqe->data[f].lkey =
MLX5_TERMINATE_SCATTER_LIST_LKEY;
wqe->data[f].lkey = mlx5e_get_terminate_scatter_list_mkey(mdev);
wqe->data[f].addr = 0;
}
}