[dpdk-dev] [PATCH v2 02/27] common/cnxk: support RoC API to get level to index

[<skori@marvell.com>]

From: Sunil Kumar Kori <skori@marvell.com>

CN10K platform supports policer up to 3 level of hierarchy.
Implement RoC API to get corresponding index for given level.

Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
---
v2:
 - Rebase support on latest DPDK
 - Handled multilevel chaining for linear hierarchy
 - Review comments incorporated

 drivers/common/cnxk/meson.build    |  1 +
 drivers/common/cnxk/roc_nix.h      | 11 +++++++++++
 drivers/common/cnxk/roc_nix_bpf.c  | 22 ++++++++++++++++++++++
 drivers/common/cnxk/roc_nix_priv.h |  1 +
 drivers/common/cnxk/version.map    |  1 +
 5 files changed, 36 insertions(+)
 create mode 100644 drivers/common/cnxk/roc_nix_bpf.c

diff --git a/drivers/common/cnxk/meson.build b/drivers/common/cnxk/meson.build
index 8a551d15d6..62901e66e7 100644
--- a/drivers/common/cnxk/meson.build
+++ b/drivers/common/cnxk/meson.build
@@ -25,6 +25,7 @@ sources = files(
         'roc_mbox.c',
         'roc_model.c',
         'roc_nix.c',
+        'roc_nix_bpf.c',
         'roc_nix_debug.c',
         'roc_nix_fc.c',
         'roc_nix_irq.c',
diff --git a/drivers/common/cnxk/roc_nix.h b/drivers/common/cnxk/roc_nix.h
index b0e6fabe31..1488c24f59 100644
--- a/drivers/common/cnxk/roc_nix.h
+++ b/drivers/common/cnxk/roc_nix.h
@@ -6,6 +6,8 @@
 #define _ROC_NIX_H_
 
 /* Constants */
+#define ROC_NIX_BPF_LEVEL_IDX_INVALID 0xFF
+
 enum roc_nix_rss_reta_sz {
 	ROC_NIX_RSS_RETA_SZ_64 = 64,
 	ROC_NIX_RSS_RETA_SZ_128 = 128,
@@ -29,6 +31,12 @@ enum roc_nix_vlan_type {
 	ROC_NIX_VLAN_TYPE_OUTER = 0x02,
 };
 
+enum roc_nix_bpf_level_flag {
+	ROC_NIX_BPF_LEVEL_F_LEAF = BIT(0),
+	ROC_NIX_BPF_LEVEL_F_MID = BIT(1),
+	ROC_NIX_BPF_LEVEL_F_TOP = BIT(2),
+};
+
 struct roc_nix_vlan_config {
 	uint32_t type;
 	union {
@@ -468,6 +476,9 @@ int __roc_api roc_nix_tm_rsrc_count(struct roc_nix *roc_nix,
 int __roc_api roc_nix_tm_node_name_get(struct roc_nix *roc_nix,
 				       uint32_t node_id, char *buf,
 				       size_t buflen);
+/* Ingress Policer API */
+uint8_t __roc_api
+roc_nix_bpf_level_to_idx(enum roc_nix_bpf_level_flag lvl_flag);
 
 /* MAC */
 int __roc_api roc_nix_mac_rxtx_start_stop(struct roc_nix *roc_nix, bool start);
diff --git a/drivers/common/cnxk/roc_nix_bpf.c b/drivers/common/cnxk/roc_nix_bpf.c
new file mode 100644
index 0000000000..b588cc16e4
--- /dev/null
+++ b/drivers/common/cnxk/roc_nix_bpf.c
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+
+#include "roc_api.h"
+#include "roc_priv.h"
+
+uint8_t
+roc_nix_bpf_level_to_idx(enum roc_nix_bpf_level_flag level_f)
+{
+	uint8_t idx;
+
+	if (level_f & ROC_NIX_BPF_LEVEL_F_LEAF)
+		idx = 0;
+	else if (level_f & ROC_NIX_BPF_LEVEL_F_MID)
+		idx = 1;
+	else if (level_f & ROC_NIX_BPF_LEVEL_F_TOP)
+		idx = 2;
+	else
+		idx = ROC_NIX_BPF_LEVEL_IDX_INVALID;
+	return idx;
+}
diff --git a/drivers/common/cnxk/roc_nix_priv.h b/drivers/common/cnxk/roc_nix_priv.h
index 9dc0c88a6f..94040fc744 100644
--- a/drivers/common/cnxk/roc_nix_priv.h
+++ b/drivers/common/cnxk/roc_nix_priv.h
@@ -170,6 +170,7 @@ enum nix_err_status {
 	NIX_ERR_INVALID_RANGE,
 	NIX_ERR_INTERNAL,
 	NIX_ERR_OP_NOTSUP,
+	NIX_ERR_HW_NOTSUP,
 	NIX_ERR_QUEUE_INVALID_RANGE,
 	NIX_ERR_AQ_READ_FAILED,
 	NIX_ERR_AQ_WRITE_FAILED,
diff --git a/drivers/common/cnxk/version.map b/drivers/common/cnxk/version.map
index 5df2e56ce6..c19f74fe91 100644
--- a/drivers/common/cnxk/version.map
+++ b/drivers/common/cnxk/version.map
@@ -77,6 +77,7 @@ INTERNAL {
 	roc_model;
 	roc_se_auth_key_set;
 	roc_se_ciph_key_set;
+	roc_nix_bpf_level_to_idx;
 	roc_nix_cq_dump;
 	roc_nix_cq_fini;
 	roc_nix_cq_init;
-- 
2.25.1