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rtnetlink: Add RTM_F_OFFLOAD_FAILED flag 

The flag indicates to user space that route offload failed.

Previous patch set added the ability to emit RTM_NEWROUTE notifications
whenever RTM_F_OFFLOAD/RTM_F_TRAP flags are changed, but if the offload
fails there is no indication to user-space.

The flag will be used in subsequent patches by netdevsim and mlxsw to
indicate to user space that route offload failed, so that users will
have better visibility into the offload process.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Cohen 2021-02-07 10:22:49 +02:00 committed by David S. Miller
parent 08cbabb77e
commit 49fc251360
1 changed files with 5 additions and 0 deletions
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5
include/uapi/linux/rtnetlink.h
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@ -319,6 +319,11 @@ enum rt_scope_t {
#define RTM_F_FIB_MATCH 0x2000 /* return full fib lookup match */
#define RTM_F_OFFLOAD 0x4000 /* route is offloaded */
#define RTM_F_TRAP 0x8000 /* route is trapping packets */
#define RTM_F_OFFLOAD_FAILED 0x20000000 /* route offload failed, this value
* is chosen to avoid conflicts with
* other flags defined in
* include/uapi/linux/ipv6_route.h
*/
/* Reserved table identifiers */