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net/mlx5: FPGA, Abort FPGA init if the device reports no QP capability 

In the case that the reported max number of QPs capability
equals to zero, abort FPGA init.

Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Adi Nissim <adin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Yevgeny Kliteynik 2017-11-08 18:07:17 +02:00 committed by Saeed Mahameed
parent 98c90f6f10
commit 90275d809a
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c
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@ -170,6 +170,12 @@ int mlx5_fpga_device_start(struct mlx5_core_dev *mdev)
MLX5_CAP_FPGA(fdev->mdev, sandbox_product_version));
max_num_qps = MLX5_CAP_FPGA(mdev, shell_caps.max_num_qps);
if (!max_num_qps) {
mlx5_fpga_err(fdev, "FPGA reports 0 QPs in SHELL_CAPS\n");
err = -ENOTSUPP;
goto out;
}
err = mlx5_core_reserve_gids(mdev, max_num_qps);
if (err)
goto out;