net/mlx5e: Fix scheduling of IPsec ASO query while in atomic

ASO query can be scheduled in atomic context as such it can't use usleep.
Use udelay as recommended in Documentation/timers/timers-howto.rst.

Fixes: 76e463f ("net/mlx5e: Overcome slow response for first IPsec ASO WQE")
Signed-off-by: Leon Romanovsky <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>

Author: rleon

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c

@@ -606,7 +606,8 @@ int mlx5e_ipsec_aso_query(struct mlx5e_ipsec_sa_entry *sa_entry,
 	do {
 		ret = mlx5_aso_poll_cq(aso->aso, false);
 		if (ret)
-			usleep_range(2, 10);
+			/* We are in atomic context */
+			udelay(10);
 	} while (ret && time_is_after_jiffies(expires));
 	spin_unlock_bh(&aso->lock);
 	return ret;