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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: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Shiraz Saleem 2017-12-22 09:46:57 -06:00 committed by Jason Gunthorpe
parent fe99afd1fe
commit 0c5d515546
3 changed files with 56 additions and 3 deletions
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3
drivers/infiniband/hw/i40iw/i40iw.h
View File

@ -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

6
drivers/infiniband/hw/i40iw/i40iw_main.c
View File

@ -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);
}
/**

50
drivers/infiniband/hw/i40iw/i40iw_utils.c
View File

@ -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
@ -252,7 +252,7 @@ int i40iw_inet6addr_event(struct notifier_block *notifier,
}
/**
* i40iw_net_event - system notifier for net events
* i40iw_net_event - system notifier for netevents
* @notfier: not used
* @event: event for notifier
* @ptr: neighbor
@ -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