[dpdk-dev] [PATCH 20/27] net/cnxk: support ops to create meter policy

[<skori@marvell.com>]

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

Implement API to add meter policy for CN10K platform.

Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
---
 drivers/net/cnxk/cn10k_ethdev_mtr.c | 47 +++++++++++++++++++++++++++++
 drivers/net/cnxk/cnxk_ethdev.h      | 12 ++++++++
 2 files changed, 59 insertions(+)

diff --git a/drivers/net/cnxk/cn10k_ethdev_mtr.c b/drivers/net/cnxk/cn10k_ethdev_mtr.c
index 8374f40681..854d30dc20 100644
--- a/drivers/net/cnxk/cn10k_ethdev_mtr.c
+++ b/drivers/net/cnxk/cn10k_ethdev_mtr.c
@@ -50,6 +50,18 @@ nix_mtr_profile_find(struct cnxk_eth_dev *dev, uint32_t profile_id)
 	return NULL;
 }
 
+static struct cn10k_flow_meter_policy *
+nix_mtr_policy_find(struct cnxk_eth_dev *dev, uint32_t meter_policy_id)
+{
+	struct cn10k_mtr_policy *fmps = &dev->mtr_policy;
+	struct cn10k_flow_meter_policy *fmp;
+
+	TAILQ_FOREACH(fmp, fmps, next)
+		if (meter_policy_id == fmp->id)
+			return fmp;
+	return NULL;
+}
+
 static int
 nix_mtr_profile_validate(struct cnxk_eth_dev *dev, uint32_t profile_id,
 			 struct rte_mtr_meter_profile *profile,
@@ -246,11 +258,46 @@ cn10k_nix_mtr_policy_validate(struct rte_eth_dev *dev,
 	return 0;
 }
 
+static int
+cn10k_nix_mtr_policy_add(struct rte_eth_dev *eth_dev, uint32_t policy_id,
+			 struct rte_mtr_meter_policy_params *policy,
+			 struct rte_mtr_error *error)
+{
+	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+	struct cn10k_mtr_policy *fmps = &dev->mtr_policy;
+	struct cn10k_flow_meter_policy *fmp;
+	int rc;
+
+	fmp = nix_mtr_policy_find(dev, policy_id);
+	if (fmp) {
+		plt_info("Policy already exist");
+		return 0;
+	}
+
+	fmp = plt_zmalloc(sizeof(struct cn10k_flow_meter_policy), ROC_ALIGN);
+	if (fmp == NULL) {
+		return -rte_mtr_error_set(error, ENOMEM,
+					  RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+					  "Memory allocation failure");
+	} else {
+		rc = cn10k_nix_mtr_policy_validate(eth_dev, policy, error);
+		if (rc)
+			return rc;
+	}
+
+	fmp->id = policy_id;
+	fmp->policy = *policy;
+	TAILQ_INSERT_TAIL(fmps, fmp, next);
+
+	return 0;
+}
+
 const struct rte_mtr_ops nix_mtr_ops = {
 	.capabilities_get = cn10k_nix_mtr_capabilities_get,
 	.meter_profile_add = cn10k_nix_mtr_profile_add,
 	.meter_profile_delete = cn10k_nix_mtr_profile_delete,
 	.meter_policy_validate = cn10k_nix_mtr_policy_validate,
+	.meter_policy_add = cn10k_nix_mtr_policy_add,
 };
 
 int
diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h
index 5d7cf58a24..3811360b75 100644
--- a/drivers/net/cnxk/cnxk_ethdev.h
+++ b/drivers/net/cnxk/cnxk_ethdev.h
@@ -145,6 +145,16 @@ struct cnxk_timesync_info {
 	uint64_t *tx_tstamp;
 } __plt_cache_aligned;
 
+
+struct cn10k_flow_meter_policy {
+	TAILQ_ENTRY(cn10k_flow_meter_policy) next;
+	/**< Pointer to the next flow meter structure. */
+	uint32_t id;	 /**< Policy id */
+	uint32_t mtr_id; /** Meter id */
+	struct rte_mtr_meter_policy_params policy;
+	uint32_t ref_cnt;
+};
+
 struct cn10k_flow_meter_profile {
 	TAILQ_ENTRY(cn10k_flow_meter_profile) next;
 	struct rte_mtr_meter_profile profile; /**< Profile detail. */
@@ -153,6 +163,7 @@ struct cn10k_flow_meter_profile {
 };
 
 TAILQ_HEAD(cn10k_mtr_profiles, cn10k_flow_meter_profile);
+TAILQ_HEAD(cn10k_mtr_policy, cn10k_flow_meter_policy);
 
 struct cnxk_eth_dev {
 	/* ROC NIX */
@@ -223,6 +234,7 @@ struct cnxk_eth_dev {
 
 	/* Ingress policer */
 	struct cn10k_mtr_profiles mtr_profiles;
+	struct cn10k_mtr_policy mtr_policy;
 
 	/* Rx burst for cleanup(Only Primary) */
 	eth_rx_burst_t rx_pkt_burst_no_offload;
-- 
2.25.1