switchdev: add netlink flags to IPv4 FIB add op

Pass in the netlink flags (NLM_F_*) into switchdev driver for IPv4 FIB add op
to allow driver to 1) optimize hardware updates, 2) handle ip route prepend
and append commands correctly.

Suggested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 45413784a3b1..1354ae83efc8 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1035,7 +1035,7 @@ struct fib_info;
  *      state change.
  * int (*ndo_sw_parent_fib_ipv4_add)(struct net_device *dev, __be32 dst,
  *                                   int dst_len, struct fib_info *fi,
- *                                   u8 tos, u8 type, u32 tb_id);
+ *                                   u8 tos, u8 type, u32 nlflags, u32 tb_id);
  *      Called to add/modify IPv4 route to switch device.
  * int (*ndo_sw_parent_fib_ipv4_del)(struct net_device *dev, __be32 dst,
  *                                   int dst_len, struct fib_info *fi,
@@ -1207,6 +1207,7 @@ struct net_device_ops {
                                                            int dst_len,
                                                            struct fib_info *fi,
                                                            u8 tos, u8 type,
+                                                           u32 nlflags,
                                                            u32 tb_id);
         int                     (*ndo_switch_fib_ipv4_del)(struct net_device *dev,
                                                            __be32 dst,