[PATCH net-next 01/13] net/sched: add sample action to the hardware intermediate representation

[Jakub Kicinski]

From: Pieter Jansen van Vuuren <pieter.jansenvanvuu...@netronome.com>

Add sample action to the hardware intermediate representation model which
would subsequently allow it to be used by drivers for offload.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuu...@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicin...@netronome.com>
---
 include/net/flow_offload.h | 7 +++++++
 net/sched/cls_api.c        | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index d035183c8d03..9a6c89b2c2bb 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -118,6 +118,7 @@ enum flow_action_id {
        FLOW_ACTION_MARK,
        FLOW_ACTION_WAKE,
        FLOW_ACTION_QUEUE,
+       FLOW_ACTION_SAMPLE,
 };
 
 /* This is mirroring enum pedit_header_type definition for easy mapping between
@@ -157,6 +158,12 @@ struct flow_action_entry {
                        u32             index;
                        u8              vf;
                } queue;
+               struct {                                /* FLOW_ACTION_SAMPLE */
+                       struct psample_group    *psample_group;
+                       u32                     rate;
+                       u32                     trunc_size;
+                       bool                    truncate;
+               } sample;
        };
 };
 
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 263c2ec082c9..f8ee2d78654a 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -37,6 +37,7 @@
 #include <net/tc_act/tc_tunnel_key.h>
 #include <net/tc_act/tc_csum.h>
 #include <net/tc_act/tc_gact.h>
+#include <net/tc_act/tc_sample.h>
 #include <net/tc_act/tc_skbedit.h>
 
 extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1];
@@ -3257,6 +3258,13 @@ int tc_setup_flow_action(struct flow_action *flow_action,
                } else if (is_tcf_skbedit_mark(act)) {
                        entry->id = FLOW_ACTION_MARK;
                        entry->mark = tcf_skbedit_mark(act);
+               } else if (is_tcf_sample(act)) {
+                       entry->id = FLOW_ACTION_SAMPLE;
+                       entry->sample.psample_group =
+                               tcf_sample_psample_group(act);
+                       entry->sample.trunc_size = tcf_sample_trunc_size(act);
+                       entry->sample.truncate = tcf_sample_truncate(act);
+                       entry->sample.rate = tcf_sample_rate(act);
                } else {
                        goto err_out;
                }
-- 
2.21.0