[PATCH v1 3/3] net/softnic: add support for DSCP action

["Sheehan,Georgina" <georgina.sheehan@intel.com>]

From: Georgina Sheehan <georgina.sheehan@intel.com>

This allows the application to change the DSCP value of incoming packets

Signed-off-by: Georgina Sheehan <georgina.sheehan@intel.com>
---
 drivers/net/softnic/rte_eth_softnic_action.c  | 14 ++++++++
 drivers/net/softnic/rte_eth_softnic_cli.c     | 34 +++++++++++++++++++
 .../net/softnic/rte_eth_softnic_internals.h   |  2 ++
 drivers/net/softnic/rte_eth_softnic_thread.c  | 10 ++++++
 4 files changed, 60 insertions(+)

diff --git a/drivers/net/softnic/rte_eth_softnic_action.c b/drivers/net/softnic/rte_eth_softnic_action.c
index 92c744dc9..98d03d5ef 100644
--- a/drivers/net/softnic/rte_eth_softnic_action.c
+++ b/drivers/net/softnic/rte_eth_softnic_action.c
@@ -397,12 +397,26 @@ softnic_table_action_profile_create(struct pmd_internals *p,
 		}
 	}
 
+	if (params->action_mask & (1LLU << RTE_TABLE_ACTION_DSCP)) {
+		status = rte_table_action_profile_action_register(ap,
+			RTE_TABLE_ACTION_DSCP,
+			&params->dscp);
+
+		if (status) {
+			rte_table_action_profile_free(ap);
+			return NULL;
+		}
+	}
+
+
 	status = rte_table_action_profile_freeze(ap);
 	if (status) {
 		rte_table_action_profile_free(ap);
 		return NULL;
 	}
 
+
+
 	/* Node allocation */
 	profile = calloc(1, sizeof(struct softnic_table_action_profile));
 	if (profile == NULL) {
diff --git a/drivers/net/softnic/rte_eth_softnic_cli.c b/drivers/net/softnic/rte_eth_softnic_cli.c
index 76136c2e2..d576cdbfb 100644
--- a/drivers/net/softnic/rte_eth_softnic_cli.c
+++ b/drivers/net/softnic/rte_eth_softnic_cli.c
@@ -1358,6 +1358,7 @@ cmd_port_in_action_profile(struct pmd_internals *softnic,
  *  [time]
  *  [tag]
  *  [decap]
+ *  [dscp]
  *
  */
 static void
@@ -1787,6 +1788,17 @@ cmd_table_action_profile(struct pmd_internals *softnic,
 		t0 += 5;
 	} /* sym_crypto */
 
+	if (t0 < n_tokens && (strcmp(tokens[t0], "dscp") == 0)) {
+		if (n_tokens < t0 + 1) {
+			snprintf(out, out_size, MSG_ARG_MISMATCH,
+				"table action profile dscp");
+			return;
+		}
+
+		p.action_mask |= 1LLU << RTE_TABLE_ACTION_DSCP;
+		t0 += 1;
+	} /** DSCP **/
+
 	if (t0 < n_tokens) {
 		snprintf(out, out_size, MSG_ARG_MISMATCH, tokens[0]);
 		return;
@@ -3432,6 +3444,7 @@ parse_match(char **tokens,
  *          aead_algo <algo> aead_key <key> aead_iv <iv> aead_aad <aad>
  *          digest_size <size>
  *       data_offset <data_offset>]
+ *    [dscp <n>]
  *
  * where:
  *    <pa> ::= g | y | r | drop
@@ -4431,6 +4444,27 @@ parse_table_action_decap(char **tokens,
 	return 2;
 }
 
+static uint32_t
+parse_table_action_dscp(char **tokens,
+		uint32_t n_tokens,
+		struct softnic_table_rule_action *a)
+{
+	if (n_tokens < 2 ||
+		strcmp(tokens[0], "dscp"))
+		return 0;
+
+	uint8_t dscp_val;
+
+	if (softnic_parser_read_uint8(&dscp_val, tokens[1]))
+		return 0;
+
+	a->dscp.dscp_val = dscp_val;
+
+	a->action_mask |= 1 << RTE_TABLE_ACTION_DSCP;
+
+	return 2;
+}
+
 static uint32_t
 parse_table_action(char **tokens,
 	uint32_t n_tokens,
diff --git a/drivers/net/softnic/rte_eth_softnic_internals.h b/drivers/net/softnic/rte_eth_softnic_internals.h
index 415434d0d..67ba3ecf3 100644
--- a/drivers/net/softnic/rte_eth_softnic_internals.h
+++ b/drivers/net/softnic/rte_eth_softnic_internals.h
@@ -333,6 +333,7 @@ struct softnic_table_action_profile_params {
 	struct rte_table_action_ttl_config ttl;
 	struct rte_table_action_stats_config stats;
 	struct rte_table_action_sym_crypto_config sym_crypto;
+	struct rte_table_action_dscp_config dscp;
 };
 
 struct softnic_table_action_profile {
@@ -962,6 +963,7 @@ struct softnic_table_rule_action {
 	struct rte_table_action_tag_params tag;
 	struct rte_table_action_decap_params decap;
 	struct rte_table_action_sym_crypto_params sym_crypto;
+	struct rte_table_action_dscp_params dscp;
 };
 
 struct rte_flow {
diff --git a/drivers/net/softnic/rte_eth_softnic_thread.c b/drivers/net/softnic/rte_eth_softnic_thread.c
index 57989a5aa..e73d4a704 100644
--- a/drivers/net/softnic/rte_eth_softnic_thread.c
+++ b/drivers/net/softnic/rte_eth_softnic_thread.c
@@ -2598,6 +2598,16 @@ action_convert(struct rte_table_action *a,
 			return status;
 	}
 
+	if (action->action_mask & (1LLU << RTE_TABLE_ACTION_DSCP)) {
+		status = rte_table_action_apply(a,
+			data,
+			RTE_TABLE_ACTION_DSCP,
+			&action->dscp);
+
+		if (status)
+			return status;
+	}
+
 	return 0;
 }
 
-- 
2.17.1