Commit 8b1ef491 authored by Yevhen Orlov's avatar Yevhen Orlov Committed by Jakub Kicinski
Browse files

net: marvell: prestera: add stub handler neighbour events 



Actual handler will be added in next patches

Co-developed-by: default avatarTaras Chornyi <tchornyi@marvell.com>
Signed-off-by: default avatarTaras Chornyi <tchornyi@marvell.com>
Co-developed-by: default avatarOleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: default avatarOleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: default avatarYevhen Orlov <yevhen.orlov@plvision.eu>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 04f24a1e

drivers/net/ethernet/marvell/prestera/prestera.h

+1 −0
Original line number Diff line number Diff line
@@ -320,6 +320,7 @@ struct prestera_router { 
	struct notifier_block inetaddr_nb;

	struct notifier_block inetaddr_valid_nb;

	struct notifier_block fib_nb;

	struct notifier_block netevent_nb;

	u8 *nhgrp_hw_state_cache; /* Bitmap cached hw state of nhs */

	unsigned long nhgrp_hw_cache_kick; /* jiffies */

};

drivers/net/ethernet/marvell/prestera/prestera_router.c

+59 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <net/switchdev.h>

#include <linux/rhashtable.h>

#include <net/nexthop.h>

#include <net/netevent.h>



#include "prestera.h"

#include "prestera_router_hw.h"
@@ -604,6 +605,56 @@ static int __prestera_router_fib_event(struct notifier_block *nb, 
	return NOTIFY_DONE;

}



struct prestera_netevent_work {

	struct work_struct work;

	struct prestera_switch *sw;

	struct neighbour *n;

};



static void prestera_router_neigh_event_work(struct work_struct *work)

{

	struct prestera_netevent_work *net_work =

		container_of(work, struct prestera_netevent_work, work);

	struct neighbour *n = net_work->n;



	/* neigh - its not hw related object. It stored only in kernel. So... */

	rtnl_lock();



	/* TODO: handler */



	neigh_release(n);

	rtnl_unlock();

	kfree(net_work);

}



static int prestera_router_netevent_event(struct notifier_block *nb,

					  unsigned long event, void *ptr)

{

	struct prestera_netevent_work *net_work;

	struct prestera_router *router;

	struct neighbour *n = ptr;



	router = container_of(nb, struct prestera_router, netevent_nb);



	switch (event) {

	case NETEVENT_NEIGH_UPDATE:

		if (n->tbl->family != AF_INET)

			return NOTIFY_DONE;



		net_work = kzalloc(sizeof(*net_work), GFP_ATOMIC);

		if (WARN_ON(!net_work))

			return NOTIFY_BAD;



		neigh_clone(n);

		net_work->n = n;

		net_work->sw = router->sw;

		INIT_WORK(&net_work->work, prestera_router_neigh_event_work);

		prestera_queue_work(&net_work->work);

	}



	return NOTIFY_DONE;

}



int prestera_router_init(struct prestera_switch *sw)

{

	struct prestera_router *router;
@@ -642,6 +693,11 @@ int prestera_router_init(struct prestera_switch *sw) 
	if (err)

		goto err_register_inetaddr_notifier;



	router->netevent_nb.notifier_call = prestera_router_netevent_event;

	err = register_netevent_notifier(&router->netevent_nb);

	if (err)

		goto err_register_netevent_notifier;



	router->fib_nb.notifier_call = __prestera_router_fib_event;

	err = register_fib_notifier(&init_net, &router->fib_nb,

				    /* TODO: flush fib entries */ NULL, NULL);
@@ -651,6 +707,8 @@ int prestera_router_init(struct prestera_switch *sw) 
	return 0;



err_register_fib_notifier:

	unregister_netevent_notifier(&router->netevent_nb);

err_register_netevent_notifier:

	unregister_inetaddr_notifier(&router->inetaddr_nb);

err_register_inetaddr_notifier:

	unregister_inetaddr_validator_notifier(&router->inetaddr_valid_nb);
@@ -668,6 +726,7 @@ int prestera_router_init(struct prestera_switch *sw) 
void prestera_router_fini(struct prestera_switch *sw)

{

	unregister_fib_notifier(&init_net, &sw->router->fib_nb);

	unregister_netevent_notifier(&sw->router->netevent_nb);

	unregister_inetaddr_notifier(&sw->router->inetaddr_nb);

	unregister_inetaddr_validator_notifier(&sw->router->inetaddr_valid_nb);

	prestera_queue_drain();