diff options
| author | Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> | 2012-02-06 08:39:49 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-06 14:42:28 -0500 |
| commit | 68355f71132bec25e0d89b2d8d3ed01286307d31 (patch) | |
| tree | 3fc82e670f5946198fb2c657b9bf7c155f043440 /drivers/net/ethernet/mellanox/mlx4/en_rx.c | |
| parent | 4c41b3673759d096106e68bce586f103c51d4119 (diff) | |
mlx4: allow device removal by fixing dma unmap size
After opening the network interface, Mellanox ConnectX device cannot be
removed by hotplug because it has not properly unmapped all DMA memory.
It happens that mlx4_en_activate_rx_rings overrides the variable that
keeps the size of the memory mapped.
This is fixed by passing to mlx4_en_destroy_rx_ring the same size that is
given to mlx4_en_create_rx_ring.
After applying this patch, hot unplugging the device works after opening
the interface.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_rx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 971d4b6b8dfe..d1c631e8293a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -380,12 +380,12 @@ err_allocator: } void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv, - struct mlx4_en_rx_ring *ring) + struct mlx4_en_rx_ring *ring, u32 size, u16 stride) { struct mlx4_en_dev *mdev = priv->mdev; mlx4_en_unmap_buffer(&ring->wqres.buf); - mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size + TXBB_SIZE); + mlx4_free_hwq_res(mdev->dev, &ring->wqres, size * stride + TXBB_SIZE); vfree(ring->rx_info); ring->rx_info = NULL; } |