diff options
| author | Ilya Lesokhin <ilyal@mellanox.com> | 2017-08-28 09:47:32 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-05-29 17:27:50 -0700 |
| commit | 36dd4902004c39b7e8a16a7cf1535faa7ecfa921 (patch) | |
| tree | 82e5f058464c64d2b9e4d7abc34925e1be1d01f6 /drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c | |
| parent | ba869ee0e0f53077f58ce43a9381b4ee0a20cdd6 (diff) | |
net/mlx5: FPGA, Call DMA unmap with the right size
When mlx5_fpga_conn_unmap_buf is called buf->sg[0].size
should equal the actual buffer size, not the message size.
Otherwise we will trigger the following dma debug warning
"DMA-API: device driver frees DMA memory with different size"
Fixes: 537a50574175 ('net/mlx5: FPGA, Add high-speed connection routines')
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c index bf84678b21d6..4138a770ed57 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c @@ -256,8 +256,6 @@ static void mlx5_fpga_conn_rq_cqe(struct mlx5_fpga_conn *conn, ix = be16_to_cpu(cqe->wqe_counter) & (conn->qp.rq.size - 1); buf = conn->qp.rq.bufs[ix]; conn->qp.rq.bufs[ix] = NULL; - if (!status) - buf->sg[0].size = be32_to_cpu(cqe->byte_cnt); conn->qp.rq.cc++; if (unlikely(status && (status != MLX5_CQE_SYNDROME_WR_FLUSH_ERR))) @@ -275,6 +273,7 @@ static void mlx5_fpga_conn_rq_cqe(struct mlx5_fpga_conn *conn, return; } + buf->sg[0].size = be32_to_cpu(cqe->byte_cnt); mlx5_fpga_dbg(conn->fdev, "Message with %u bytes received successfully\n", buf->sg[0].size); conn->recv_cb(conn->cb_arg, buf); |