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net/mlx4_en: try to use high order pages for RX rings

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RX rings can fit most of the time in a contiguous piece of memory,
so lets use kvzalloc_node/kvfree instead of vzalloc_node/vfree

Note that kvzalloc_node() automatically falls back to another node,
there is no need to do the fallback ourselves.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2018-03-06 11:12:53 -08:00 committed by David S. Miller
parent 7d99429afa
commit d8c13f2271
1 changed files with 5 additions and 8 deletions
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13
drivers/net/ethernet/mellanox/mlx4/en_rx.c
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@ -291,13 +291,10 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS *
sizeof(struct mlx4_en_rx_alloc));
ring->rx_info = vzalloc_node(tmp, node);
ring->rx_info = kvzalloc_node(tmp, GFP_KERNEL, node);
if (!ring->rx_info) {
ring->rx_info = vzalloc(tmp);
if (!ring->rx_info) {
err = -ENOMEM;
goto err_xdp_info;
}
err = -ENOMEM;
goto err_xdp_info;
}
en_dbg(DRV, priv, "Allocated rx_info ring at addr:%p size:%d\n",
@ -318,7 +315,7 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
return 0;
err_info:
vfree(ring->rx_info);
kvfree(ring->rx_info);
ring->rx_info = NULL;
err_xdp_info:
xdp_rxq_info_unreg(&ring->xdp_rxq);
@ -447,7 +444,7 @@ void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
bpf_prog_put(old_prog);
xdp_rxq_info_unreg(&ring->xdp_rxq);
mlx4_free_hwq_res(mdev->dev, &ring->wqres, size * stride + TXBB_SIZE);
vfree(ring->rx_info);
kvfree(ring->rx_info);
ring->rx_info = NULL;
kfree(ring);
*pring = NULL;