[dpdk-dev] [PATCH v2 16/27] net/cnxk: support ops to get meter capabilities

[<skori@marvell.com>]

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

Implement ethdev operation to get meter capabilities for
CN10K platform.

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

 drivers/net/cnxk/cn10k_ethdev_mtr.c | 48 +++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/drivers/net/cnxk/cn10k_ethdev_mtr.c b/drivers/net/cnxk/cn10k_ethdev_mtr.c
index 9b46032858..f87871f149 100644
--- a/drivers/net/cnxk/cn10k_ethdev_mtr.c
+++ b/drivers/net/cnxk/cn10k_ethdev_mtr.c
@@ -5,7 +5,55 @@
 #include "cn10k_ethdev.h"
 #include <rte_mtr_driver.h>
 
+#define NIX_MTR_COUNT_MAX      73 /* 64(leaf) + 8(mid) + 1(top) */
+#define NIX_MTR_COUNT_PER_FLOW 3  /* 1(leaf) + 1(mid) + 1(top) */
+
+static struct rte_mtr_capabilities mtr_capa = {
+	.n_max = NIX_MTR_COUNT_MAX,
+	.n_shared_max = NIX_MTR_COUNT_PER_FLOW,
+	/* .identical = , */
+	.shared_identical = true,
+	/* .shared_n_flows_per_mtr_max = ,*/
+	.chaining_n_mtrs_per_flow_max = NIX_MTR_COUNT_PER_FLOW,
+	.chaining_use_prev_mtr_color_supported = true,
+	.chaining_use_prev_mtr_color_enforced = true,
+	.meter_srtcm_rfc2697_n_max = NIX_MTR_COUNT_MAX,
+	.meter_trtcm_rfc2698_n_max = NIX_MTR_COUNT_MAX,
+	.meter_trtcm_rfc4115_n_max = NIX_MTR_COUNT_MAX,
+	.meter_rate_max = ROC_NIX_BPF_RATE_MAX / 8, /* Bytes per second */
+	.meter_policy_n_max = NIX_MTR_COUNT_MAX,
+	.color_aware_srtcm_rfc2697_supported = true,
+	.color_aware_trtcm_rfc2698_supported = true,
+	.color_aware_trtcm_rfc4115_supported = true,
+	.srtcm_rfc2697_byte_mode_supported = true,
+	.srtcm_rfc2697_packet_mode_supported = true,
+	.trtcm_rfc2698_byte_mode_supported = true,
+	.trtcm_rfc2698_packet_mode_supported = true,
+	.trtcm_rfc4115_byte_mode_supported = true,
+	.trtcm_rfc4115_packet_mode_supported = true,
+	.stats_mask = RTE_MTR_STATS_N_PKTS_GREEN | RTE_MTR_STATS_N_PKTS_YELLOW |
+		      RTE_MTR_STATS_N_PKTS_RED | RTE_MTR_STATS_N_PKTS_DROPPED |
+		      RTE_MTR_STATS_N_BYTES_GREEN |
+		      RTE_MTR_STATS_N_BYTES_YELLOW | RTE_MTR_STATS_N_BYTES_RED |
+		      RTE_MTR_STATS_N_BYTES_DROPPED};
+
+static int
+cn10k_nix_mtr_capabilities_get(struct rte_eth_dev *dev,
+			       struct rte_mtr_capabilities *capa,
+			       struct rte_mtr_error *error)
+{
+	RTE_SET_USED(dev);
+
+	if (!capa)
+		return -rte_mtr_error_set(error, EINVAL,
+					  RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
+					  "NULL input parameter");
+	*capa = mtr_capa;
+	return 0;
+}
+
 const struct rte_mtr_ops nix_mtr_ops = {
+	.capabilities_get = cn10k_nix_mtr_capabilities_get,
 };
 
 int
-- 
2.25.1