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authorIdo Schimmel <idosch@mellanox.com>2017-02-08 13:16:39 +0300
committerDavid S. Miller <davem@davemloft.net>2017-02-08 23:25:18 +0300
commit982acb97560c8118c2109504a22b0d78a580547d (patch)
treed262e8cff973d4916d11a7f6b2b1e216de8ae1c4 /include/net/ip_fib.h
parent70ad35067c99dd6fb1fefbabf11dd53806f1978c (diff)
downloadlinux-982acb97560c8118c2109504a22b0d78a580547d.tar.xz
ipv4: fib: Notify about nexthop status changes
When a multipath route is hit the kernel doesn't consider nexthops that are DEAD or LINKDOWN when IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN is set. Devices that offload multipath routes need to be made aware of nexthop status changes. Otherwise, the device will keep forwarding packets to non-functional nexthops. Add the FIB_EVENT_NH_{ADD,DEL} events to the fib notification chain, which notify capable devices when they should add or delete a nexthop from their tables. Cc: Roopa Prabhu <roopa@cumulusnetworks.com> Cc: David Ahern <dsa@cumulusnetworks.com> Cc: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip_fib.h')
-rw-r--r--include/net/ip_fib.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 57c2a863d0b2..45a184eaff2b 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -214,11 +214,18 @@ struct fib_entry_notifier_info {
u32 nlflags;
};
+struct fib_nh_notifier_info {
+ struct fib_notifier_info info; /* must be first */
+ struct fib_nh *fib_nh;
+};
+
enum fib_event_type {
FIB_EVENT_ENTRY_ADD,
FIB_EVENT_ENTRY_DEL,
FIB_EVENT_RULE_ADD,
FIB_EVENT_RULE_DEL,
+ FIB_EVENT_NH_ADD,
+ FIB_EVENT_NH_DEL,
};
int register_fib_notifier(struct notifier_block *nb,