diff mbox series

[05/24] net/nfp: add the offload support of basic actions

Message ID 1665109126-16201-6-git-send-email-chaoyong.he@corigine.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers show
Series add the basic rte_flow offload support of nfp PMD | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Chaoyong He Oct. 7, 2022, 2:18 a.m. UTC
Add the offload support of very basic actions: mark, rss,
count, drop and output.

Signed-off-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
---
 doc/guides/nics/features/nfp.ini         |   6 ++
 doc/guides/rel_notes/release_22_11.rst   |   6 ++
 drivers/net/nfp/flower/nfp_flower_cmsg.h |  11 +++
 drivers/net/nfp/nfp_flow.c               | 112 +++++++++++++++++++++++++++++++
 drivers/net/nfp/nfp_flow.h               |  37 ++++++++++
 5 files changed, 172 insertions(+)
diff mbox series

Patch

diff --git a/doc/guides/nics/features/nfp.ini b/doc/guides/nics/features/nfp.ini
index 4460cf0..194fe64 100644
--- a/doc/guides/nics/features/nfp.ini
+++ b/doc/guides/nics/features/nfp.ini
@@ -29,3 +29,9 @@  Usage doc            = Y
 [rte_flow items]
 eth                  = Y
 port_id              = Y
+
+[rte_flow actions]
+count                = Y
+dec_ttl              = Y
+drop                 = Y
+port_id              = Y
diff --git a/doc/guides/rel_notes/release_22_11.rst b/doc/guides/rel_notes/release_22_11.rst
index 17ac784..e36a711 100644
--- a/doc/guides/rel_notes/release_22_11.rst
+++ b/doc/guides/rel_notes/release_22_11.rst
@@ -109,6 +109,12 @@  New Features
 
     * Ethernet
 
+  Add the support of rte_flow actions as follow:
+
+    * Count
+    * Drop
+    * TTL decrement
+
 * **Updated NXP dpaa2 driver.**
 
   * Added support for flow action REPRESENTED_PORT.
diff --git a/drivers/net/nfp/flower/nfp_flower_cmsg.h b/drivers/net/nfp/flower/nfp_flower_cmsg.h
index 75a3b91..d776e37 100644
--- a/drivers/net/nfp/flower/nfp_flower_cmsg.h
+++ b/drivers/net/nfp/flower/nfp_flower_cmsg.h
@@ -253,6 +253,17 @@  struct nfp_flower_mac_mpls {
 	rte_be32_t mpls_lse;
 };
 
+struct nfp_fl_act_head {
+	uint8_t jump_id;
+	uint8_t len_lw;
+};
+
+struct nfp_fl_act_output {
+	struct nfp_fl_act_head head;
+	rte_be16_t flags;
+	rte_be32_t port;
+};
+
 int nfp_flower_cmsg_mac_repr(struct nfp_app_fw_flower *app_fw_flower);
 int nfp_flower_cmsg_repr_reify(struct nfp_app_fw_flower *app_fw_flower,
 		struct nfp_flower_representor *repr);
diff --git a/drivers/net/nfp/nfp_flow.c b/drivers/net/nfp/nfp_flow.c
index a077423..ec021f0 100644
--- a/drivers/net/nfp/nfp_flow.c
+++ b/drivers/net/nfp/nfp_flow.c
@@ -558,6 +558,22 @@  struct nfp_mask_id_entry {
 		case RTE_FLOW_ACTION_TYPE_VOID:
 			PMD_DRV_LOG(DEBUG, "RTE_FLOW_ACTION_TYPE_VOID detected");
 			break;
+		case RTE_FLOW_ACTION_TYPE_MARK:
+			PMD_DRV_LOG(DEBUG, "RTE_FLOW_ACTION_TYPE_MARK detected");
+			break;
+		case RTE_FLOW_ACTION_TYPE_DROP:
+			PMD_DRV_LOG(DEBUG, "RTE_FLOW_ACTION_TYPE_DROP detected");
+			break;
+		case RTE_FLOW_ACTION_TYPE_COUNT:
+			PMD_DRV_LOG(DEBUG, "RTE_FLOW_ACTION_TYPE_COUNT detected");
+			break;
+		case RTE_FLOW_ACTION_TYPE_RSS:
+			PMD_DRV_LOG(DEBUG, "RTE_FLOW_ACTION_TYPE_RSS detected");
+			break;
+		case RTE_FLOW_ACTION_TYPE_PORT_ID:
+			PMD_DRV_LOG(DEBUG, "RTE_FLOW_ACTION_TYPE_PORT_ID detected");
+			key_ls->act_size += sizeof(struct nfp_fl_act_output);
+			break;
 		default:
 			PMD_DRV_LOG(ERR, "Action type %d not supported.", action->type);
 			return -ENOTSUP;
@@ -785,6 +801,96 @@  struct nfp_mask_id_entry {
 	return 0;
 }
 
+static int
+nfp_flow_action_output(char *act_data,
+		const struct rte_flow_action *action,
+		struct nfp_fl_rule_metadata *nfp_flow_meta)
+{
+	size_t act_size;
+	struct rte_eth_dev *ethdev;
+	struct nfp_fl_act_output *output;
+	struct nfp_flower_representor *representor;
+	const struct rte_flow_action_port_id *port_id;
+
+	port_id = action->conf;
+	if (port_id == NULL || port_id->id >= RTE_MAX_ETHPORTS)
+		return -ERANGE;
+
+	ethdev = &rte_eth_devices[port_id->id];
+	representor = (struct nfp_flower_representor *)ethdev->data->dev_private;
+	act_size = sizeof(struct nfp_fl_act_output);
+
+	output = (struct nfp_fl_act_output *)act_data;
+	output->head.jump_id = NFP_FL_ACTION_OPCODE_OUTPUT;
+	output->head.len_lw  = act_size >> NFP_FL_LW_SIZ;
+	output->flags        = rte_cpu_to_be_16(NFP_FL_OUT_FLAGS_LAST);
+	output->port         = rte_cpu_to_be_32(representor->port_id);
+
+	nfp_flow_meta->shortcut = rte_cpu_to_be_32(representor->port_id);
+
+	return 0;
+}
+
+static int
+nfp_flow_compile_action(__rte_unused struct nfp_flower_representor *representor,
+		const struct rte_flow_action actions[],
+		struct rte_flow *nfp_flow)
+{
+	int ret = 0;
+	char *position;
+	char *action_data;
+	bool drop_flag = false;
+	uint32_t total_actions = 0;
+	const struct rte_flow_action *action;
+	struct nfp_fl_rule_metadata *nfp_flow_meta;
+
+	nfp_flow_meta = nfp_flow->payload.meta;
+	action_data   = nfp_flow->payload.action_data;
+	position      = action_data;
+
+	for (action = actions; action->type != RTE_FLOW_ACTION_TYPE_END; ++action) {
+		switch (action->type) {
+		case RTE_FLOW_ACTION_TYPE_VOID:
+			break;
+		case RTE_FLOW_ACTION_TYPE_MARK:
+			PMD_DRV_LOG(DEBUG, "Process RTE_FLOW_ACTION_TYPE_MARK");
+			break;
+		case RTE_FLOW_ACTION_TYPE_DROP:
+			PMD_DRV_LOG(DEBUG, "Process RTE_FLOW_ACTION_TYPE_DROP");
+			drop_flag = true;
+			break;
+		case RTE_FLOW_ACTION_TYPE_COUNT:
+			PMD_DRV_LOG(DEBUG, "Process RTE_FLOW_ACTION_TYPE_COUNT");
+			break;
+		case RTE_FLOW_ACTION_TYPE_RSS:
+			PMD_DRV_LOG(DEBUG, "Process RTE_FLOW_ACTION_TYPE_RSS");
+			break;
+		case RTE_FLOW_ACTION_TYPE_PORT_ID:
+			PMD_DRV_LOG(DEBUG, "Process RTE_FLOW_ACTION_TYPE_PORT_ID");
+			ret = nfp_flow_action_output(position, action, nfp_flow_meta);
+			if (ret != 0) {
+				PMD_DRV_LOG(ERR, "Failed when process"
+						" RTE_FLOW_ACTION_TYPE_PORT_ID");
+				return ret;
+			}
+
+			position += sizeof(struct nfp_fl_act_output);
+			break;
+		default:
+			PMD_DRV_LOG(ERR, "Unsupported action type: %d", action->type);
+			return -ENOTSUP;
+		}
+		total_actions++;
+	}
+
+	if (drop_flag)
+		nfp_flow_meta->shortcut = rte_cpu_to_be_32(NFP_FL_SC_ACT_DROP);
+	else if (total_actions > 1)
+		nfp_flow_meta->shortcut = rte_cpu_to_be_32(NFP_FL_SC_ACT_NULL);
+
+	return 0;
+}
+
 static struct rte_flow *
 nfp_flow_process(struct nfp_flower_representor *representor,
 		const struct rte_flow_item items[],
@@ -833,6 +939,12 @@  struct nfp_mask_id_entry {
 		goto free_flow;
 	}
 
+	ret = nfp_flow_compile_action(representor, actions, nfp_flow);
+	if (ret != 0) {
+		PMD_DRV_LOG(ERR, "nfp flow action process failed.");
+		goto free_flow;
+	}
+
 	nfp_flow_meta = nfp_flow->payload.meta;
 	mask_data = nfp_flow->payload.mask_data;
 	mask_len = key_layer.key_size;
diff --git a/drivers/net/nfp/nfp_flow.h b/drivers/net/nfp/nfp_flow.h
index 83f9f29..f1fbada 100644
--- a/drivers/net/nfp/nfp_flow.h
+++ b/drivers/net/nfp/nfp_flow.h
@@ -33,6 +33,43 @@ 
 /* The firmware expects lengths in units of long words */
 #define NFP_FL_LW_SIZ                   2
 
+#define NFP_FL_SC_ACT_DROP      0x80000000
+#define NFP_FL_SC_ACT_USER      0x7D000000
+#define NFP_FL_SC_ACT_POPV      0x6A000000
+#define NFP_FL_SC_ACT_NULL      0x00000000
+
+/* Action opcodes */
+#define NFP_FL_ACTION_OPCODE_OUTPUT             0
+#define NFP_FL_ACTION_OPCODE_PUSH_VLAN          1
+#define NFP_FL_ACTION_OPCODE_POP_VLAN           2
+#define NFP_FL_ACTION_OPCODE_PUSH_MPLS          3
+#define NFP_FL_ACTION_OPCODE_POP_MPLS           4
+#define NFP_FL_ACTION_OPCODE_USERSPACE          5
+#define NFP_FL_ACTION_OPCODE_SET_TUNNEL         6
+#define NFP_FL_ACTION_OPCODE_SET_ETHERNET       7
+#define NFP_FL_ACTION_OPCODE_SET_MPLS           8
+#define NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS     9
+#define NFP_FL_ACTION_OPCODE_SET_IPV4_TTL_TOS   10
+#define NFP_FL_ACTION_OPCODE_SET_IPV6_SRC       11
+#define NFP_FL_ACTION_OPCODE_SET_IPV6_DST       12
+#define NFP_FL_ACTION_OPCODE_SET_IPV6_TC_HL_FL  13
+#define NFP_FL_ACTION_OPCODE_SET_UDP            14
+#define NFP_FL_ACTION_OPCODE_SET_TCP            15
+#define NFP_FL_ACTION_OPCODE_PRE_LAG            16
+#define NFP_FL_ACTION_OPCODE_PRE_TUNNEL         17
+#define NFP_FL_ACTION_OPCODE_PRE_GS             18
+#define NFP_FL_ACTION_OPCODE_GS                 19
+#define NFP_FL_ACTION_OPCODE_PUSH_NSH           20
+#define NFP_FL_ACTION_OPCODE_POP_NSH            21
+#define NFP_FL_ACTION_OPCODE_SET_QUEUE          22
+#define NFP_FL_ACTION_OPCODE_CONNTRACK          23
+#define NFP_FL_ACTION_OPCODE_METER              24
+#define NFP_FL_ACTION_OPCODE_CT_NAT_EXT         25
+#define NFP_FL_ACTION_OPCODE_PUSH_GENEVE        26
+#define NFP_FL_ACTION_OPCODE_NUM                32
+
+#define NFP_FL_OUT_FLAGS_LAST            (1 << 15)
+
 /* Tunnel ports */
 #define NFP_FL_PORT_TYPE_TUN            0x50000000