Esempi in C++ (Cpp) per mlx4_en_free_rx_desc

Esempio n. 1

File: en_rx.c Progetto: namanM003/Operating-Systems-CSE-506-

static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
				struct mlx4_en_rx_ring *ring)
{
	int index;

	en_dbg(DRV, priv, "Freeing Rx buf - cons:%d prod:%d\n",
	       ring->cons, ring->prod);

	/* Unmap and free Rx buffers */
	while (!mlx4_en_is_ring_empty(ring)) {
		index = ring->cons & ring->size_mask;
		en_dbg(DRV, priv, "Processing descriptor:%d\n", index);
		mlx4_en_free_rx_desc(priv, ring, index);
		++ring->cons;
	}
}

Esempio n. 2

File: en_rx.c Progetto: mkrufky/linux

static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
				struct mlx4_en_rx_ring *ring)
{
	int index;

	en_dbg(DRV, priv, "Freeing Rx buf - cons:%d prod:%d\n",
	       ring->cons, ring->prod);

	/* Unmap and free Rx buffers */
	for (index = 0; index < ring->size; index++) {
		en_dbg(DRV, priv, "Processing descriptor:%d\n", index);
		mlx4_en_free_rx_desc(priv, ring, index);
	}
	ring->cons = 0;
	ring->prod = 0;
}

Esempio n. 3

File: en_rx.c Progetto: andi34/Dhollmen_Kernel

static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
				struct mlx4_en_rx_ring *ring)
{
	int index;

	en_dbg(DRV, priv, "Freeing Rx buf - cons:%d prod:%d\n",
	       ring->cons, ring->prod);

	/* Unmap and free Rx buffers */
	BUG_ON((u32) (ring->prod - ring->cons) > ring->actual_size);
	while (ring->cons != ring->prod) {
		index = ring->cons & ring->size_mask;
		en_dbg(DRV, priv, "Processing descriptor:%d\n", index);
		mlx4_en_free_rx_desc(priv, ring, index);
		++ring->cons;
	}
}

Esempio n. 4

static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
{
	struct mlx4_en_rx_ring *ring;
	int ring_ind;
	int buf_ind;
	int new_size;
	int err;

	for (buf_ind = 0; buf_ind < priv->prof->rx_ring_size; buf_ind++) {
		for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
			ring = &priv->rx_ring[ring_ind];

			err = mlx4_en_prepare_rx_desc(priv, ring,
						      ring->actual_size);
			if (err) {
				if (ring->actual_size == 0) {
					en_err(priv, "Failed to allocate "
						     "enough rx buffers\n");
					return -ENOMEM;
				} else {
					new_size = rounddown_pow_of_two(ring->actual_size);
					en_warn(priv, "Only %d buffers allocated "
						      "reducing ring size to %d\n",
						ring->actual_size, new_size);
					goto reduce_rings;
				}
			}
			ring->actual_size++;
			ring->prod++;
		}
	}
	return 0;

reduce_rings:
	for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
		ring = &priv->rx_ring[ring_ind];
		while (ring->actual_size > new_size) {
			ring->actual_size--;
			ring->prod--;
			mlx4_en_free_rx_desc(priv, ring, ring->actual_size);
		}
	}

	return 0;
}

Esempio n. 5

File: en_rx.c Progetto: namanM003/Operating-Systems-CSE-506-

static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
{
	struct mlx4_en_rx_ring *ring;
	int ring_ind;
	int buf_ind;
	int new_size;

	for (buf_ind = 0; buf_ind < priv->prof->rx_ring_size; buf_ind++) {
		for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
			ring = priv->rx_ring[ring_ind];

			if (mlx4_en_prepare_rx_desc(priv, ring,
						    ring->actual_size,
						    GFP_KERNEL | __GFP_COLD)) {
				if (ring->actual_size < MLX4_EN_MIN_RX_SIZE) {
					en_err(priv, "Failed to allocate enough rx buffers\n");
					return -ENOMEM;
				} else {
					new_size = rounddown_pow_of_two(ring->actual_size);
					en_warn(priv, "Only %d buffers allocated reducing ring size to %d\n",
						ring->actual_size, new_size);
					goto reduce_rings;
				}
			}
			ring->actual_size++;
			ring->prod++;
		}
	}
	return 0;

reduce_rings:
	for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
		ring = priv->rx_ring[ring_ind];
		while (ring->actual_size > new_size) {
			ring->actual_size--;
			ring->prod--;
			mlx4_en_free_rx_desc(priv, ring, ring->actual_size);
		}
	}

	return 0;
}