[dpdk-dev,10/20] net/i40e: support committing TM hierarchy
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Commit Message
Add the support of the Traffic Management API,
rte_tm_hierarchy_commit.
When calling this API, the driver tries to enable
the TM configuration on HW.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---
drivers/net/i40e/i40e_ethdev.h | 9 ++++
drivers/net/i40e/i40e_tm.c | 105 ++++++++++++++++++++++++++++++++++++++++
drivers/net/i40e/rte_pmd_i40e.c | 9 ----
3 files changed, 114 insertions(+), 9 deletions(-)
@@ -252,6 +252,15 @@ enum i40e_flxpld_layer_idx {
I40E_INSET_FLEX_PAYLOAD_W5 | I40E_INSET_FLEX_PAYLOAD_W6 | \
I40E_INSET_FLEX_PAYLOAD_W7 | I40E_INSET_FLEX_PAYLOAD_W8)
+/* The max bandwidth of i40e is 40Gbps. */
+#define I40E_QOS_BW_MAX 40000
+/* The bandwidth should be the multiple of 50Mbps. */
+#define I40E_QOS_BW_GRANULARITY 50
+/* The min bandwidth weight is 1. */
+#define I40E_QOS_BW_WEIGHT_MIN 1
+/* The max bandwidth weight is 127. */
+#define I40E_QOS_BW_WEIGHT_MAX 127
+
/**
* The overhead from MTU to max frame size.
* Considering QinQ packet, the VLAN tag needs to be counted twice.
@@ -62,6 +62,9 @@ static int i40e_node_capabilities_get(struct rte_eth_dev *dev,
uint32_t node_id,
struct rte_tm_node_capabilities *cap,
struct rte_tm_error *error);
+static int i40e_hierarchy_commit(struct rte_eth_dev *dev,
+ int clear_on_fail,
+ struct rte_tm_error *error);
const struct rte_tm_ops i40e_tm_ops = {
.capabilities_get = i40e_tm_capabilities_get,
@@ -72,6 +75,7 @@ static int i40e_node_capabilities_get(struct rte_eth_dev *dev,
.node_type_get = i40e_node_type_get,
.level_capabilities_get = i40e_level_capabilities_get,
.node_capabilities_get = i40e_node_capabilities_get,
+ .hierarchy_commit = i40e_hierarchy_commit,
};
int
@@ -708,3 +712,104 @@ static int i40e_node_capabilities_get(struct rte_eth_dev *dev,
return 0;
}
+
+static int
+i40e_hierarchy_commit(struct rte_eth_dev *dev,
+ int clear_on_fail,
+ struct rte_tm_error *error)
+{
+ struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+ struct i40e_tm_node_list *tc_list = &pf->tm_conf.tc_list;
+ struct i40e_tm_node *tm_node;
+ struct i40e_vsi *vsi;
+ struct i40e_hw *hw;
+ struct i40e_aqc_configure_vsi_ets_sla_bw_data tc_bw;
+ uint64_t bw;
+ uint8_t tc_map;
+ int ret;
+ int i;
+
+ if (!error)
+ return -EINVAL;
+
+ /* check the setting */
+ if (!pf->tm_conf.root)
+ return 0;
+
+ vsi = pf->main_vsi;
+ hw = I40E_VSI_TO_HW(vsi);
+
+ /**
+ * Don't support bandwidth control for port and TCs in parallel.
+ * If the port has a max bandwidth, the TCs should have none.
+ */
+ /* port */
+ bw = pf->tm_conf.root->shaper_profile->profile.peak.rate;
+ if (bw) {
+ /* check if any TC has a max bandwidth */
+ TAILQ_FOREACH(tm_node, tc_list, node) {
+ if (tm_node->shaper_profile->profile.peak.rate) {
+ error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE;
+ error->message = "no port and TC max bandwidth"
+ " in parallel";
+ goto fail_clear;
+ }
+ }
+
+ /* interpret Bps to 50Mbps */
+ bw = bw * 8 / 1000 / 1000 / I40E_QOS_BW_GRANULARITY;
+
+ /* set the max bandwidth */
+ ret = i40e_aq_config_vsi_bw_limit(hw, vsi->seid,
+ (uint16_t)bw, 0, NULL);
+ if (ret) {
+ error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE;
+ error->message = "fail to set port max bandwidth";
+ goto fail_clear;
+ }
+
+ return 0;
+ }
+
+ /* TC */
+ memset(&tc_bw, 0, sizeof(tc_bw));
+ tc_bw.tc_valid_bits = vsi->enabled_tc;
+ tc_map = vsi->enabled_tc;
+ TAILQ_FOREACH(tm_node, tc_list, node) {
+ i = 0;
+ while (i < I40E_MAX_TRAFFIC_CLASS && !(tc_map & BIT_ULL(i)))
+ i++;
+ if (i >= I40E_MAX_TRAFFIC_CLASS) {
+ error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS;
+ error->message = "cannot find the TC";
+ goto fail_clear;
+ }
+ tc_map &= ~BIT_ULL(i);
+
+ bw = tm_node->shaper_profile->profile.peak.rate;
+ if (!bw)
+ continue;
+
+ /* interpret Bps to 50Mbps */
+ bw = bw * 8 / 1000 / 1000 / I40E_QOS_BW_GRANULARITY;
+
+ tc_bw.tc_bw_credits[i] = rte_cpu_to_le_16((uint16_t)bw);
+ }
+
+ ret = i40e_aq_config_vsi_ets_sla_bw_limit(hw, vsi->seid, &tc_bw, NULL);
+ if (ret) {
+ error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE;
+ error->message = "fail to set TC max bandwidth";
+ goto fail_clear;
+ }
+
+ return 0;
+
+fail_clear:
+ /* clear all the traffic manager configuration */
+ if (clear_on_fail) {
+ i40e_tm_conf_uninit(dev);
+ i40e_tm_conf_init(dev);
+ }
+ return -EINVAL;
+}
@@ -40,15 +40,6 @@
#include "i40e_rxtx.h"
#include "rte_pmd_i40e.h"
-/* The max bandwidth of i40e is 40Gbps. */
-#define I40E_QOS_BW_MAX 40000
-/* The bandwidth should be the multiple of 50Mbps. */
-#define I40E_QOS_BW_GRANULARITY 50
-/* The min bandwidth weight is 1. */
-#define I40E_QOS_BW_WEIGHT_MIN 1
-/* The max bandwidth weight is 127. */
-#define I40E_QOS_BW_WEIGHT_MAX 127
-
int
rte_pmd_i40e_ping_vfs(uint8_t port, uint16_t vf)
{