From 00f5ce99dc6ee46c3113393cc8fa12173f9bbcd7 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 19 Jun 2012 11:21:40 +0300 Subject: mlx4: Use port management change event instead of smp_snoop The port management change event can replace smp_snoop. If the capability bit for this event is set in dev-caps, the event is used (by the driver setting the PORT_MNG_CHG_EVENT bit in the async event mask in the MAP_EQ fw command). In this case, when the driver passes incoming SMP PORT_INFO SET mads to the FW, the FW generates port management change events to signal any changes to the driver. If the FW generates these events, smp_snoop shouldn't be invoked in ib_process_mad(), or duplicate events will occur (once from the FW-generated event, and once from smp_snoop). In the case where the FW does not generate port management change events smp_snoop needs to be invoked to create these events. The flow in smp_snoop has been modified to make use of the same procedures as in the fw-generated-event event case to generate the port management events (LID change, Client-rereg, Pkey change, and/or GID change). Port management change event handling required changing the mlx4_ib_event and mlx4_dispatch_event prototypes; the "param" argument (last argument) had to be changed to unsigned long in order to accomodate passing the EQE pointer. We also needed to move the definition of struct mlx4_eqe from net/mlx4.h to file device.h -- to make it available to the IB driver, to handle port management change events. Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/net/ethernet/mellanox/mlx4/intf.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet/mellanox/mlx4/intf.c') diff --git a/drivers/net/ethernet/mellanox/mlx4/intf.c b/drivers/net/ethernet/mellanox/mlx4/intf.c index b4e9f6f5cc04..116895ac8b35 100644 --- a/drivers/net/ethernet/mellanox/mlx4/intf.c +++ b/drivers/net/ethernet/mellanox/mlx4/intf.c @@ -115,7 +115,8 @@ void mlx4_unregister_interface(struct mlx4_interface *intf) } EXPORT_SYMBOL_GPL(mlx4_unregister_interface); -void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port) +void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, + unsigned long param) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_device_context *dev_ctx; @@ -125,7 +126,7 @@ void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int por list_for_each_entry(dev_ctx, &priv->ctx_list, list) if (dev_ctx->intf->event) - dev_ctx->intf->event(dev, dev_ctx->context, type, port); + dev_ctx->intf->event(dev, dev_ctx->context, type, param); spin_unlock_irqrestore(&priv->ctx_lock, flags); } -- cgit v1.2.1