net/mlx5e: Wait for RX buffers initialization in a more proper manner

Use jiffies rather than wait loop with msleep().

The wait loop didn't take into consideration time when the
process was not executing.

Signed-off-by: Achiad Shochat <[email protected]>
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Achiad Shochat

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -442,12 +442,12 @@ static void mlx5e_disable_rq(struct mlx5e_rq *rq)
 
 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
 {
+	unsigned long exp_time = jiffies + msecs_to_jiffies(20000);
 	struct mlx5e_channel *c = rq->channel;
 	struct mlx5e_priv *priv = c->priv;
 	struct mlx5_wq_ll *wq = &rq->wq;
-	int i;
 
-	for (i = 0; i < 1000; i++) {
+	while (time_before(jiffies, exp_time)) {
 		if (wq->cur_sz >= priv->params.min_rx_wqes)
 			return 0;