diff mbox series

[ovs-dev,v12,05/11] netdev-offload: Introduce register sFlow upcall callback API

Message ID 20210127062344.194230-6-cmi@nvidia.com
State New
Headers show
Series Add offload support for sFlow | expand

Commit Message

Chris Mi Jan. 27, 2021, 6:23 a.m. UTC
Introduce register sFlow upcall callback API as a pre-step towards
saving the upcall callback.

Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Eli Britstein <elibr@nvidia.com>
---
 lib/dpif-netlink.h            |  4 ++++
 lib/netdev-offload-provider.h |  3 +++
 lib/netdev-offload.c          | 12 ++++++++++++
 lib/netdev-offload.h          |  3 +++
 4 files changed, 22 insertions(+)
diff mbox series

Patch

diff --git a/lib/dpif-netlink.h b/lib/dpif-netlink.h
index 24294bc42..318a4c71f 100644
--- a/lib/dpif-netlink.h
+++ b/lib/dpif-netlink.h
@@ -21,6 +21,7 @@ 
 #include <stddef.h>
 #include <stdint.h>
 
+#include "dpif.h"
 #include "flow.h"
 
 struct ofpbuf;
@@ -60,4 +61,7 @@  bool dpif_netlink_is_internal_device(const char *name);
 
 enum ovs_vport_type netdev_to_ovs_vport_type(const char *type);
 
+typedef int dpif_netlink_sflow_upcall_callback(struct dpif_upcall_sflow
+                                               *dupcall);
+
 #endif /* dpif-netlink.h */
diff --git a/lib/netdev-offload-provider.h b/lib/netdev-offload-provider.h
index cf859d1b4..feeb3b458 100644
--- a/lib/netdev-offload-provider.h
+++ b/lib/netdev-offload-provider.h
@@ -87,6 +87,9 @@  struct netdev_flow_api {
      * Return 0 if successful, otherwise returns a positive errno value. */
     int (*flow_get_n_flows)(struct netdev *, uint64_t *n_flows);
 
+    /* Registers an upcall callback to process sFlow packet */
+    void (*register_nl_sflow_upcall_cb)(dpif_netlink_sflow_upcall_callback *);
+
     /* Initializies the netdev flow api.
      * Return 0 if successful, otherwise returns a positive errno value. */
     int (*init_flow_api)(struct netdev *);
diff --git a/lib/netdev-offload.c b/lib/netdev-offload.c
index 6237667c3..99b2704f6 100644
--- a/lib/netdev-offload.c
+++ b/lib/netdev-offload.c
@@ -693,3 +693,15 @@  netdev_set_flow_api_enabled(const struct smap *ovs_other_config)
         }
     }
 }
+
+void
+netdev_regsiter_nl_sflow_upcall_cb(struct netdev *netdev,
+                                   dpif_netlink_sflow_upcall_callback *cb)
+{
+    const struct netdev_flow_api *flow_api =
+        ovsrcu_get(const struct netdev_flow_api *, &netdev->flow_api);
+
+    if (flow_api && flow_api->register_nl_sflow_upcall_cb) {
+        flow_api->register_nl_sflow_upcall_cb(cb);
+    }
+}
diff --git a/lib/netdev-offload.h b/lib/netdev-offload.h
index 18b48790f..5ad5463ff 100644
--- a/lib/netdev-offload.h
+++ b/lib/netdev-offload.h
@@ -22,6 +22,7 @@ 
 #include "openvswitch/types.h"
 #include "packets.h"
 #include "flow.h"
+#include "dpif-netlink.h"
 
 #ifdef  __cplusplus
 extern "C" {
@@ -127,6 +128,8 @@  int netdev_ports_flow_get(const char *dpif_type, struct match *match,
                           struct ofpbuf *buf);
 int netdev_ports_get_n_flows(const char *dpif_type,
                              odp_port_t port_no, uint64_t *n_flows);
+void netdev_regsiter_nl_sflow_upcall_cb(struct netdev *netdev,
+                                       dpif_netlink_sflow_upcall_callback *cb);
 
 #ifdef  __cplusplus
 }