[PATCH v4 2/4] net/iavf: support queue rate limit configuration

[Wenjun Wu <wenjun1.wu@intel.com>]

This patch adds queue rate limit configuration support.
Only max bandwidth is supported.

Signed-off-by: Ting Xu <ting.xu@intel.com>
Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>
---
 drivers/net/iavf/iavf.h       |  13 +++
 drivers/net/iavf/iavf_tm.c    | 190 ++++++++++++++++++++++++++++++++--
 drivers/net/iavf/iavf_vchnl.c |  23 ++++
 3 files changed, 218 insertions(+), 8 deletions(-)

diff --git a/drivers/net/iavf/iavf.h b/drivers/net/iavf/iavf.h
index a01d18e61b..96515a3ee9 100644
--- a/drivers/net/iavf/iavf.h
+++ b/drivers/net/iavf/iavf.h
@@ -170,11 +170,21 @@ struct iavf_tm_node {
 	uint32_t weight;
 	uint32_t reference_count;
 	struct iavf_tm_node *parent;
+	struct iavf_tm_shaper_profile *shaper_profile;
 	struct rte_tm_node_params params;
 };
 
 TAILQ_HEAD(iavf_tm_node_list, iavf_tm_node);
 
+struct iavf_tm_shaper_profile {
+	TAILQ_ENTRY(iavf_tm_shaper_profile) node;
+	uint32_t shaper_profile_id;
+	uint32_t reference_count;
+	struct rte_tm_shaper_params profile;
+};
+
+TAILQ_HEAD(iavf_shaper_profile_list, iavf_tm_shaper_profile);
+
 /* node type of Traffic Manager */
 enum iavf_tm_node_type {
 	IAVF_TM_NODE_TYPE_PORT,
@@ -188,6 +198,7 @@ struct iavf_tm_conf {
 	struct iavf_tm_node *root; /* root node - vf vsi */
 	struct iavf_tm_node_list tc_list; /* node list for all the TCs */
 	struct iavf_tm_node_list queue_list; /* node list for all the queues */
+	struct iavf_shaper_profile_list shaper_profile_list;
 	uint32_t nb_tc_node;
 	uint32_t nb_queue_node;
 	bool committed;
@@ -451,6 +462,8 @@ int iavf_add_del_mc_addr_list(struct iavf_adapter *adapter,
 int iavf_request_queues(struct rte_eth_dev *dev, uint16_t num);
 int iavf_get_max_rss_queue_region(struct iavf_adapter *adapter);
 int iavf_get_qos_cap(struct iavf_adapter *adapter);
+int iavf_set_q_bw(struct rte_eth_dev *dev,
+		  struct virtchnl_queues_bw_cfg *q_bw, uint16_t size);
 int iavf_set_q_tc_map(struct rte_eth_dev *dev,
 			struct virtchnl_queue_tc_mapping *q_tc_mapping,
 			uint16_t size);
diff --git a/drivers/net/iavf/iavf_tm.c b/drivers/net/iavf/iavf_tm.c
index 8d92062c7f..32bb3be45e 100644
--- a/drivers/net/iavf/iavf_tm.c
+++ b/drivers/net/iavf/iavf_tm.c
@@ -8,6 +8,13 @@
 static int iavf_hierarchy_commit(struct rte_eth_dev *dev,
 				 __rte_unused int clear_on_fail,
 				 __rte_unused struct rte_tm_error *error);
+static int iavf_shaper_profile_add(struct rte_eth_dev *dev,
+				   uint32_t shaper_profile_id,
+				   struct rte_tm_shaper_params *profile,
+				   struct rte_tm_error *error);
+static int iavf_shaper_profile_del(struct rte_eth_dev *dev,
+				   uint32_t shaper_profile_id,
+				   struct rte_tm_error *error);
 static int iavf_tm_node_add(struct rte_eth_dev *dev, uint32_t node_id,
 	      uint32_t parent_node_id, uint32_t priority,
 	      uint32_t weight, uint32_t level_id,
@@ -30,6 +37,8 @@ static int iavf_node_type_get(struct rte_eth_dev *dev, uint32_t node_id,
 		   int *is_leaf, struct rte_tm_error *error);
 
 const struct rte_tm_ops iavf_tm_ops = {
+	.shaper_profile_add = iavf_shaper_profile_add,
+	.shaper_profile_delete = iavf_shaper_profile_del,
 	.node_add = iavf_tm_node_add,
 	.node_delete = iavf_tm_node_delete,
 	.capabilities_get = iavf_tm_capabilities_get,
@@ -44,6 +53,9 @@ iavf_tm_conf_init(struct rte_eth_dev *dev)
 {
 	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 
+	/* initialize shaper profile list */
+	TAILQ_INIT(&vf->tm_conf.shaper_profile_list);
+
 	/* initialize node configuration */
 	vf->tm_conf.root = NULL;
 	TAILQ_INIT(&vf->tm_conf.tc_list);
@@ -57,6 +69,7 @@ void
 iavf_tm_conf_uninit(struct rte_eth_dev *dev)
 {
 	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
+	struct iavf_tm_shaper_profile *shaper_profile;
 	struct iavf_tm_node *tm_node;
 
 	/* clear node configuration */
@@ -74,6 +87,14 @@ iavf_tm_conf_uninit(struct rte_eth_dev *dev)
 		rte_free(vf->tm_conf.root);
 		vf->tm_conf.root = NULL;
 	}
+
+	/* Remove all shaper profiles */
+	while ((shaper_profile =
+	       TAILQ_FIRST(&vf->tm_conf.shaper_profile_list))) {
+		TAILQ_REMOVE(&vf->tm_conf.shaper_profile_list,
+			     shaper_profile, node);
+		rte_free(shaper_profile);
+	}
 }
 
 static inline struct iavf_tm_node *
@@ -132,13 +153,6 @@ iavf_node_param_check(struct iavf_info *vf, uint32_t node_id,
 		return -EINVAL;
 	}
 
-	/* not support shaper profile */
-	if (params->shaper_profile_id) {
-		error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_SHAPER_PROFILE_ID;
-		error->message = "shaper profile not supported";
-		return -EINVAL;
-	}
-
 	/* not support shared shaper */
 	if (params->shared_shaper_id) {
 		error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_SHARED_SHAPER_ID;
@@ -236,6 +250,23 @@ iavf_node_type_get(struct rte_eth_dev *dev, uint32_t node_id,
 	return 0;
 }
 
+static inline struct iavf_tm_shaper_profile *
+iavf_shaper_profile_search(struct rte_eth_dev *dev,
+			   uint32_t shaper_profile_id)
+{
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
+	struct iavf_shaper_profile_list *shaper_profile_list =
+		&vf->tm_conf.shaper_profile_list;
+	struct iavf_tm_shaper_profile *shaper_profile;
+
+	TAILQ_FOREACH(shaper_profile, shaper_profile_list, node) {
+		if (shaper_profile_id == shaper_profile->shaper_profile_id)
+			return shaper_profile;
+	}
+
+	return NULL;
+}
+
 static int
 iavf_tm_node_add(struct rte_eth_dev *dev, uint32_t node_id,
 	      uint32_t parent_node_id, uint32_t priority,
@@ -246,6 +277,7 @@ iavf_tm_node_add(struct rte_eth_dev *dev, uint32_t node_id,
 	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 	enum iavf_tm_node_type node_type = IAVF_TM_NODE_TYPE_MAX;
 	enum iavf_tm_node_type parent_node_type = IAVF_TM_NODE_TYPE_MAX;
+	struct iavf_tm_shaper_profile *shaper_profile = NULL;
 	struct iavf_tm_node *tm_node;
 	struct iavf_tm_node *parent_node;
 	uint16_t tc_nb = vf->qos_cap->num_elem;
@@ -273,6 +305,18 @@ iavf_tm_node_add(struct rte_eth_dev *dev, uint32_t node_id,
 		return -EINVAL;
 	}
 
+	/* check the shaper profile id */
+	if (params->shaper_profile_id != RTE_TM_SHAPER_PROFILE_ID_NONE) {
+		shaper_profile = iavf_shaper_profile_search(dev,
+			params->shaper_profile_id);
+		if (!shaper_profile) {
+			error->type =
+				RTE_TM_ERROR_TYPE_NODE_PARAMS_SHAPER_PROFILE_ID;
+			error->message = "shaper profile not exist";
+			return -EINVAL;
+		}
+	}
+
 	/* root node if not have a parent */
 	if (parent_node_id == RTE_TM_NODE_ID_NULL) {
 		/* check level */
@@ -358,6 +402,7 @@ iavf_tm_node_add(struct rte_eth_dev *dev, uint32_t node_id,
 	tm_node->id = node_id;
 	tm_node->reference_count = 0;
 	tm_node->parent = parent_node;
+	tm_node->shaper_profile = shaper_profile;
 	rte_memcpy(&tm_node->params, params,
 			 sizeof(struct rte_tm_node_params));
 	if (parent_node_type == IAVF_TM_NODE_TYPE_PORT) {
@@ -373,6 +418,10 @@ iavf_tm_node_add(struct rte_eth_dev *dev, uint32_t node_id,
 	}
 	tm_node->parent->reference_count++;
 
+	/* increase the reference counter of the shaper profile */
+	if (shaper_profile)
+		shaper_profile->reference_count++;
+
 	return 0;
 }
 
@@ -437,6 +486,103 @@ iavf_tm_node_delete(struct rte_eth_dev *dev, uint32_t node_id,
 	return 0;
 }
 
+static int
+iavf_shaper_profile_param_check(struct rte_tm_shaper_params *profile,
+				struct rte_tm_error *error)
+{
+	/* min bucket size not supported */
+	if (profile->committed.size) {
+		error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE_COMMITTED_SIZE;
+		error->message = "committed bucket size not supported";
+		return -EINVAL;
+	}
+	/* max bucket size not supported */
+	if (profile->peak.size) {
+		error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE_PEAK_SIZE;
+		error->message = "peak bucket size not supported";
+		return -EINVAL;
+	}
+	/* length adjustment not supported */
+	if (profile->pkt_length_adjust) {
+		error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE_PKT_ADJUST_LEN;
+		error->message = "packet length adjustment not supported";
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+iavf_shaper_profile_add(struct rte_eth_dev *dev,
+			uint32_t shaper_profile_id,
+			struct rte_tm_shaper_params *profile,
+			struct rte_tm_error *error)
+{
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
+	struct iavf_tm_shaper_profile *shaper_profile;
+	int ret;
+
+	if (!profile || !error)
+		return -EINVAL;
+
+	ret = iavf_shaper_profile_param_check(profile, error);
+	if (ret)
+		return ret;
+
+	shaper_profile = iavf_shaper_profile_search(dev, shaper_profile_id);
+
+	if (shaper_profile) {
+		error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE_ID;
+		error->message = "profile ID exist";
+		return -EINVAL;
+	}
+
+	shaper_profile = rte_zmalloc("iavf_tm_shaper_profile",
+				     sizeof(struct iavf_tm_shaper_profile),
+				     0);
+	if (!shaper_profile)
+		return -ENOMEM;
+	shaper_profile->shaper_profile_id = shaper_profile_id;
+	rte_memcpy(&shaper_profile->profile, profile,
+			 sizeof(struct rte_tm_shaper_params));
+	TAILQ_INSERT_TAIL(&vf->tm_conf.shaper_profile_list,
+			  shaper_profile, node);
+
+	return 0;
+}
+
+static int
+iavf_shaper_profile_del(struct rte_eth_dev *dev,
+			uint32_t shaper_profile_id,
+			struct rte_tm_error *error)
+{
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
+	struct iavf_tm_shaper_profile *shaper_profile;
+
+	if (!error)
+		return -EINVAL;
+
+	shaper_profile = iavf_shaper_profile_search(dev, shaper_profile_id);
+
+	if (!shaper_profile) {
+		error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE_ID;
+		error->message = "profile ID not exist";
+		return -EINVAL;
+	}
+
+	/* don't delete a profile if it's used by one or several nodes */
+	if (shaper_profile->reference_count) {
+		error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE;
+		error->message = "profile in use";
+		return -EINVAL;
+	}
+
+	TAILQ_REMOVE(&vf->tm_conf.shaper_profile_list, shaper_profile, node);
+	rte_free(shaper_profile);
+
+	return 0;
+}
+
 static int
 iavf_tm_capabilities_get(struct rte_eth_dev *dev,
 			 struct rte_tm_capabilities *cap,
@@ -656,10 +802,11 @@ static int iavf_hierarchy_commit(struct rte_eth_dev *dev,
 	struct iavf_adapter *adapter =
 		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
 	struct virtchnl_queue_tc_mapping *q_tc_mapping;
+	struct virtchnl_queues_bw_cfg *q_bw;
 	struct iavf_tm_node_list *queue_list = &vf->tm_conf.queue_list;
 	struct iavf_tm_node *tm_node;
 	struct iavf_qtc_map *qtc_map;
-	uint16_t size;
+	uint16_t size, size_q;
 	int index = 0, node_committed = 0;
 	int i, ret_val = IAVF_SUCCESS;
 
@@ -691,10 +838,21 @@ static int iavf_hierarchy_commit(struct rte_eth_dev *dev,
 		goto fail_clear;
 	}
 
+	size_q = sizeof(*q_bw) + sizeof(q_bw->cfg[0]) *
+		(vf->num_queue_pairs - 1);
+	q_bw = rte_zmalloc("q_bw", size_q, 0);
+	if (!q_bw) {
+		ret_val = IAVF_ERR_NO_MEMORY;
+		goto fail_clear;
+	}
+
 	q_tc_mapping->vsi_id = vf->vsi.vsi_id;
 	q_tc_mapping->num_tc = vf->qos_cap->num_elem;
 	q_tc_mapping->num_queue_pairs = vf->num_queue_pairs;
 
+	q_bw->vsi_id = vf->vsi.vsi_id;
+	q_bw->num_queues = vf->num_queue_pairs;
+
 	TAILQ_FOREACH(tm_node, queue_list, node) {
 		if (tm_node->tc >= q_tc_mapping->num_tc) {
 			PMD_DRV_LOG(ERR, "TC%d is not enabled", tm_node->tc);
@@ -702,6 +860,18 @@ static int iavf_hierarchy_commit(struct rte_eth_dev *dev,
 			goto fail_clear;
 		}
 		q_tc_mapping->tc[tm_node->tc].req.queue_count++;
+
+		if (tm_node->shaper_profile) {
+			q_bw->cfg[node_committed].queue_id = node_committed;
+			q_bw->cfg[node_committed].shaper.peak =
+			tm_node->shaper_profile->profile.peak.rate /
+			1000 * IAVF_BITS_PER_BYTE;
+			q_bw->cfg[node_committed].shaper.committed =
+			tm_node->shaper_profile->profile.committed.rate /
+			1000 * IAVF_BITS_PER_BYTE;
+			q_bw->cfg[node_committed].tc = tm_node->tc;
+		}
+
 		node_committed++;
 	}
 
@@ -712,6 +882,10 @@ static int iavf_hierarchy_commit(struct rte_eth_dev *dev,
 		goto fail_clear;
 	}
 
+	ret_val = iavf_set_q_bw(dev, q_bw, size_q);
+	if (ret_val)
+		goto fail_clear;
+
 	/* store the queue TC mapping info */
 	qtc_map = rte_zmalloc("qtc_map",
 		sizeof(struct iavf_qtc_map) * q_tc_mapping->num_tc, 0);
diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c
index 169e1f2012..537369f736 100644
--- a/drivers/net/iavf/iavf_vchnl.c
+++ b/drivers/net/iavf/iavf_vchnl.c
@@ -1636,6 +1636,29 @@ int iavf_set_q_tc_map(struct rte_eth_dev *dev,
 	return err;
 }
 
+int iavf_set_q_bw(struct rte_eth_dev *dev,
+		struct virtchnl_queues_bw_cfg *q_bw, uint16_t size)
+{
+	struct iavf_adapter *adapter =
+			IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
+	struct iavf_cmd_info args;
+	int err;
+
+	memset(&args, 0, sizeof(args));
+	args.ops = VIRTCHNL_OP_CONFIG_QUEUE_BW;
+	args.in_args = (uint8_t *)q_bw;
+	args.in_args_size = size;
+	args.out_buffer = vf->aq_resp;
+	args.out_size = IAVF_AQ_BUF_SZ;
+
+	err = iavf_execute_vf_cmd(adapter, &args, 0);
+	if (err)
+		PMD_DRV_LOG(ERR, "Failed to execute command of"
+			    " VIRTCHNL_OP_CONFIG_QUEUE_BW");
+	return err;
+}
+
 int
 iavf_add_del_mc_addr_list(struct iavf_adapter *adapter,
 			struct rte_ether_addr *mc_addrs,
-- 
2.25.1