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| author | Eli Cohen | 2010-08-26 16:18:43 +0200 |
|---|---|---|
| committer | Roland Dreier | 2010-10-25 19:20:39 +0200 |
| commit | 33c87f0af60146b375220809c1cb745ac1a86edf (patch) | |
| tree | f22e0a1f8fbe6b05f2f15c517d3b8e9b77581662 /drivers/net/mlx4/intf.c | |
| parent | IB/uverbs: Return link layer type to userspace for query port operation (diff) | |
| download | kernel-qcow2-linux-33c87f0af60146b375220809c1cb745ac1a86edf.tar.gz kernel-qcow2-linux-33c87f0af60146b375220809c1cb745ac1a86edf.tar.xz kernel-qcow2-linux-33c87f0af60146b375220809c1cb745ac1a86edf.zip | |
mlx4_core: Allow protocol drivers to find corresponding interfaces
Add a mechanism for mlx4 protocol drivers to get a pointer to other
drivers's device objects. For this, an exported function,
mlx4_get_protocol_dev() is added, which allows a driver to get some
other driver's device based on the protocol that the driver
implements. Two protocols are added: MLX4_PROTOCOL_IB and
MLX4_PROTOCOL_EN.
This will be used in mlx4 IBoE support so that mlx4_ib can find the
corresponding mlx4_en netdev.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
[ Clean up and rename a few things. - Roland ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4/intf.c')
| -rw-r--r-- | drivers/net/mlx4/intf.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/mlx4/intf.c b/drivers/net/mlx4/intf.c index 555067802751..73c94fcdfddf 100644 --- a/drivers/net/mlx4/intf.c +++ b/drivers/net/mlx4/intf.c @@ -161,3 +161,24 @@ void mlx4_unregister_device(struct mlx4_dev *dev) mutex_unlock(&intf_mutex); } + +void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + struct mlx4_device_context *dev_ctx; + unsigned long flags; + void *result = NULL; + + spin_lock_irqsave(&priv->ctx_lock, flags); + + list_for_each_entry(dev_ctx, &priv->ctx_list, list) + if (dev_ctx->intf->protocol == proto && dev_ctx->intf->get_dev) { + result = dev_ctx->intf->get_dev(dev, dev_ctx->context, port); + break; + } + + spin_unlock_irqrestore(&priv->ctx_lock, flags); + + return result; +} +EXPORT_SYMBOL_GPL(mlx4_get_protocol_dev); |