net/devlink: Add E-Switch mode control

Add the commands to set and show the mode of SRIOV E-Switch, two modes
are supported:

* legacy: operating in the "old" L2 based mode (DMAC --> VF vport)

* switchdev: the E-Switch is referred to as whitebox switch configured
using standard tools such as tc, bridge, openvswitch etc. To allow
working with the tools, for each VF, a VF representor netdevice is
created by the E-Switch manager vendor device driver instance (e.g PF).

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index ba0073b26fa6..915bfa74458c 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -57,6 +57,8 @@ enum devlink_command {
         DEVLINK_CMD_SB_OCC_SNAPSHOT,
         DEVLINK_CMD_SB_OCC_MAX_CLEAR,
 
+        DEVLINK_CMD_ESWITCH_MODE_GET,
+        DEVLINK_CMD_ESWITCH_MODE_SET,
         /* add new commands above here */
 
         __DEVLINK_CMD_MAX,
@@ -95,6 +97,11 @@ enum devlink_sb_threshold_type {
 
 #define DEVLINK_SB_THRESHOLD_TO_ALPHA_MAX 20
 
+enum devlink_eswitch_mode {
+        DEVLINK_ESWITCH_MODE_LEGACY,
+        DEVLINK_ESWITCH_MODE_SWITCHDEV,
+};
+
 enum devlink_attr {
         /* don't change the order or add anything between, this is ABI! */
         DEVLINK_ATTR_UNSPEC,
@@ -125,6 +132,7 @@ enum devlink_attr {
         DEVLINK_ATTR_SB_TC_INDEX,               /* u16 */
         DEVLINK_ATTR_SB_OCC_CUR,                /* u32 */
         DEVLINK_ATTR_SB_OCC_MAX,                /* u32 */
+        DEVLINK_ATTR_ESWITCH_MODE,              /* u16 */
 
         /* add new attributes above here, update the policy in devlink.c */