On 07.03.2018 09:35, Saeed Mahameed wrote:
> From: Aviad Yehezkel <aviadye@xxxxxxxxxxxx>
>
> Generally, FPGA IPSec commands must always complete.
> We want to wait for one minute for them to complete gracefully also
> when killing a process.
>
> Signed-off-by: Aviad Yehezkel <aviadye@xxxxxxxxxxxx>
> Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
> ---
> drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
> index 35d0e33381ca..95f9c5a8619b 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
> @@ -39,6 +39,7 @@
> #include "fpga/core.h"
>
> #define SBU_QP_QUEUE_SIZE 8
> +#define MLX5_FPGA_IPSEC_CMD_TIMEOUT_MSEC (60 * 1000)
>
> enum mlx5_ipsec_response_syndrome {
> MLX5_IPSEC_RESPONSE_SUCCESS = 0,
> @@ -217,12 +218,14 @@ void *mlx5_fpga_ipsec_sa_cmd_exec(struct mlx5_core_dev *mdev,
> int mlx5_fpga_ipsec_sa_cmd_wait(void *ctx)
> {
> struct mlx5_ipsec_command_context *context = ctx;
> + unsigned long timeout =
> + msecs_to_jiffies(MLX5_FPGA_IPSEC_CMD_TIMEOUT_MSEC);
> int res;
>
> - res = wait_for_completion_killable(&context->complete);
> - if (res) {
> + res = wait_for_completion_timeout(&context->complete, timeout);
You had a possibility to kill the waiting task before the patch, but it gets lost after the patch.
Why not wait_for_completion_killable_timeout()?
> + if (!res) {
> mlx5_fpga_warn(context->dev, "Failure waiting for IPSec command response\n");
> - return -EINTR;
> + return -ETIMEDOUT;
> }
>
> if (context->status == MLX5_FPGA_IPSEC_SACMD_COMPLETE)
Thanks,
Kirill
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