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Commit 0c5d5155 authored by Shiraz Saleem's avatar Shiraz Saleem Committed by Jason Gunthorpe
Browse files

i40iw: Add notifier for network device events 



Register a netdevice notifier for netdev UP/DOWN
notification events and report the appropriate ib event.

Signed-off-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent fe99afd1

drivers/infiniband/hw/i40iw/i40iw.h

+3 −0
Original line number Diff line number Diff line
@@ -587,5 +587,8 @@ int i40iw_inet6addr_event(struct notifier_block *notifier, 
int i40iw_net_event(struct notifier_block *notifier,

		    unsigned long event,

		    void *ptr);

int i40iw_netdevice_event(struct notifier_block *notifier,

			  unsigned long event,

			  void *ptr);



#endif

drivers/infiniband/hw/i40iw/i40iw_main.c

+6 −0
Original line number Diff line number Diff line
@@ -99,6 +99,10 @@ static struct notifier_block i40iw_net_notifier = { 
	.notifier_call = i40iw_net_event

};



static struct notifier_block i40iw_netdevice_notifier = {

	.notifier_call = i40iw_netdevice_event

};



/**

 * i40iw_find_i40e_handler - find a handler given a client info

 * @ldev: pointer to a client info
@@ -1394,6 +1398,7 @@ static void i40iw_register_notifiers(void) 
	register_inetaddr_notifier(&i40iw_inetaddr_notifier);

	register_inet6addr_notifier(&i40iw_inetaddr6_notifier);

	register_netevent_notifier(&i40iw_net_notifier);

	register_netdevice_notifier(&i40iw_netdevice_notifier);

}



/**
@@ -1405,6 +1410,7 @@ static void i40iw_unregister_notifiers(void) 
	unregister_netevent_notifier(&i40iw_net_notifier);

	unregister_inetaddr_notifier(&i40iw_inetaddr_notifier);

	unregister_inet6addr_notifier(&i40iw_inetaddr6_notifier);

	unregister_netdevice_notifier(&i40iw_netdevice_notifier);

}



/**

drivers/infiniband/hw/i40iw/i40iw_utils.c

+47 −3
Original line number Diff line number Diff line
@@ -137,7 +137,7 @@ inline u32 i40iw_rd32(struct i40iw_hw *hw, u32 reg) 
}



/**

 * i40iw_inetaddr_event - system notifier for netdev events

 * i40iw_inetaddr_event - system notifier for ipv4 addr events

 * @notfier: not used

 * @event: event for notifier

 * @ptr: if address
@@ -200,7 +200,7 @@ int i40iw_inetaddr_event(struct notifier_block *notifier, 
}



/**

 * i40iw_inet6addr_event - system notifier for ipv6 netdev events

 * i40iw_inet6addr_event - system notifier for ipv6 addr events

 * @notfier: not used

 * @event: event for notifier

 * @ptr: if address
@@ -296,6 +296,50 @@ int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void * 
	return NOTIFY_DONE;

}



/**

 * i40iw_netdevice_event - system notifier for netdev events

 * @notfier: not used

 * @event: event for notifier

 * @ptr: netdev

 */

int i40iw_netdevice_event(struct notifier_block *notifier,

			  unsigned long event,

			  void *ptr)

{

	struct net_device *event_netdev;

	struct net_device *netdev;

	struct i40iw_device *iwdev;

	struct i40iw_handler *hdl;



	event_netdev = netdev_notifier_info_to_dev(ptr);



	hdl = i40iw_find_netdev(event_netdev);

	if (!hdl)

		return NOTIFY_DONE;



	iwdev = &hdl->device;

	if (iwdev->init_state < RDMA_DEV_REGISTERED || iwdev->closing)

		return NOTIFY_DONE;



	netdev = iwdev->ldev->netdev;

	if (netdev != event_netdev)

		return NOTIFY_DONE;



	iwdev->iw_status = 1;



	switch (event) {

	case NETDEV_DOWN:

		iwdev->iw_status = 0;

		/* Fall through */

	case NETDEV_UP:

		i40iw_port_ibevent(iwdev);

		break;

	default:

		break;

	}

	return NOTIFY_DONE;

}



/**

 * i40iw_get_cqp_request - get cqp struct

 * @cqp: device cqp ptr