net/qede/base: revise tunnel APIs/structs
[dpdk.git] / drivers / net / i40e / i40e_ethdev.c
index f54a158..af69c9c 100644 (file)
 /* Bit mask of Extended Tag enable/disable */
 #define PCI_DEV_CTRL_EXT_TAG_MASK  (1 << PCI_DEV_CTRL_EXT_TAG_SHIFT)
 
+/* 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
+
 static int eth_i40e_dev_init(struct rte_eth_dev *eth_dev);
 static int eth_i40e_dev_uninit(struct rte_eth_dev *eth_dev);
 static int i40e_dev_configure(struct rte_eth_dev *dev);
@@ -901,6 +910,8 @@ i40e_init_ethtype_filter_list(struct rte_eth_dev *dev)
                .entries = I40E_MAX_ETHERTYPE_FILTER_NUM,
                .key_len = sizeof(struct i40e_ethertype_filter_input),
                .hash_func = rte_hash_crc,
+               .hash_func_init_val = 0,
+               .socket_id = rte_socket_id(),
        };
 
        /* Initialize ethertype filter rule list and hash */
@@ -944,6 +955,8 @@ i40e_init_tunnel_filter_list(struct rte_eth_dev *dev)
                .entries = I40E_MAX_TUNNEL_FILTER_NUM,
                .key_len = sizeof(struct i40e_tunnel_filter_input),
                .hash_func = rte_hash_crc,
+               .hash_func_init_val = 0,
+               .socket_id = rte_socket_id(),
        };
 
        /* Initialize tunnel filter rule list and hash */
@@ -987,6 +1000,8 @@ i40e_init_fdir_filter_list(struct rte_eth_dev *dev)
                .entries = I40E_MAX_FDIR_FILTER_NUM,
                .key_len = sizeof(struct rte_eth_fdir_input),
                .hash_func = rte_hash_crc,
+               .hash_func_init_val = 0,
+               .socket_id = rte_socket_id(),
        };
 
        /* Initialize flow director filter rule list and hash */
@@ -1237,6 +1252,15 @@ eth_i40e_dev_init(struct rte_eth_dev *dev)
        ether_addr_copy((struct ether_addr *)hw->mac.perm_addr,
                                        &dev->data->mac_addrs[0]);
 
+       /* Init dcb to sw mode by default */
+       ret = i40e_dcb_init_configure(dev, TRUE);
+       if (ret != I40E_SUCCESS) {
+               PMD_INIT_LOG(INFO, "Failed to init dcb.");
+               pf->flags &= ~I40E_FLAG_DCB;
+       }
+       /* Update HW struct after DCB configuration */
+       i40e_get_cap(hw);
+
        /* initialize pf host driver to setup SRIOV resource if applicable */
        i40e_pf_host_init(dev);
 
@@ -1265,13 +1289,6 @@ eth_i40e_dev_init(struct rte_eth_dev *dev)
        /* initialize mirror rule list */
        TAILQ_INIT(&pf->mirror_list);
 
-       /* Init dcb to sw mode by default */
-       ret = i40e_dcb_init_configure(dev, TRUE);
-       if (ret != I40E_SUCCESS) {
-               PMD_INIT_LOG(INFO, "Failed to init dcb.");
-               pf->flags &= ~I40E_FLAG_DCB;
-       }
-
        ret = i40e_init_ethtype_filter_list(dev);
        if (ret < 0)
                goto err_init_ethtype_filter_list;
@@ -1869,6 +1886,7 @@ i40e_dev_start(struct rte_eth_dev *dev)
        struct rte_pci_device *pci_dev = I40E_DEV_TO_PCI(dev);
        struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
        uint32_t intr_vector = 0;
+       struct i40e_vsi *vsi;
 
        hw->adapter_stopped = 0;
 
@@ -1947,6 +1965,15 @@ i40e_dev_start(struct rte_eth_dev *dev)
                        PMD_DRV_LOG(INFO, "fail to set vsi broadcast");
        }
 
+       /* Enable the VLAN promiscuous mode. */
+       if (pf->vfs) {
+               for (i = 0; i < pf->vf_num; i++) {
+                       vsi = pf->vfs[i].vsi;
+                       i40e_aq_set_vsi_vlan_promisc(hw, vsi->seid,
+                                                    true, NULL);
+               }
+       }
+
        /* Apply link configure */
        if (dev->data->dev_conf.link_speeds & ~(ETH_LINK_SPEED_100M |
                                ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G |
@@ -4662,6 +4689,7 @@ i40e_vsi_setup(struct i40e_pf *pf,
        vsi->parent_vsi = uplink_vsi ? uplink_vsi : pf->main_vsi;
        vsi->user_param = user_param;
        vsi->vlan_anti_spoof_on = 0;
+       vsi->vlan_filter_on = 0;
        /* Allocate queues */
        switch (vsi->type) {
        case I40E_VSI_MAIN  :
@@ -4838,13 +4866,14 @@ i40e_vsi_setup(struct i40e_pf *pf,
                        rte_cpu_to_le_16(I40E_AQ_VSI_PROP_VLAN_VALID);
                ctxt.info.port_vlan_flags |= I40E_AQ_VSI_PVLAN_MODE_ALL;
                ret = i40e_vsi_config_tc_queue_mapping(vsi, &ctxt.info,
-                                               I40E_DEFAULT_TCMAP);
+                                               hw->func_caps.enabled_tcmap);
                if (ret != I40E_SUCCESS) {
                        PMD_DRV_LOG(ERR,
                                "Failed to configure TC queue mapping");
                        goto fail_msix_alloc;
                }
-               ctxt.info.up_enable_bits = I40E_DEFAULT_TCMAP;
+
+               ctxt.info.up_enable_bits = hw->func_caps.enabled_tcmap;
                ctxt.info.valid_sections |=
                        rte_cpu_to_le_16(I40E_AQ_VSI_PROP_SCHED_VALID);
                /**
@@ -6030,7 +6059,7 @@ i40e_set_vlan_filter(struct i40e_vsi *vsi,
 
        i40e_store_vlan_filter(vsi, vlan_id, on);
 
-       if (!vsi->vlan_anti_spoof_on || !vlan_id)
+       if ((!vsi->vlan_anti_spoof_on && !vsi->vlan_filter_on) || !vlan_id)
                return;
 
        vlan_data.vlan_tag = rte_cpu_to_le_16(vlan_id);
@@ -9866,7 +9895,7 @@ i40e_dcb_init_configure(struct rte_eth_dev *dev, bool sw_dcb)
 {
        struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
        struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-       int ret = 0;
+       int i, ret = 0;
 
        if ((pf->flags & I40E_FLAG_DCB) == 0) {
                PMD_INIT_LOG(ERR, "HW doesn't support DCB");
@@ -9893,11 +9922,16 @@ i40e_dcb_init_configure(struct rte_eth_dev *dev, bool sw_dcb)
                        hw->local_dcbx_config.etscfg.tcbwtable[0] = 100;
                        hw->local_dcbx_config.etscfg.tsatable[0] =
                                                I40E_IEEE_TSA_ETS;
+                       /* all UPs mapping to TC0 */
+                       for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
+                               hw->local_dcbx_config.etscfg.prioritytable[i] = 0;
                        hw->local_dcbx_config.etsrec =
                                hw->local_dcbx_config.etscfg;
                        hw->local_dcbx_config.pfc.willing = 0;
                        hw->local_dcbx_config.pfc.pfccap =
                                                I40E_MAX_TRAFFIC_CLASS;
+                       hw->local_dcbx_config.pfc.pfcenable =
+                                               I40E_DEFAULT_TCMAP;
                        /* FW needs one App to configure HW */
                        hw->local_dcbx_config.numapps = 1;
                        hw->local_dcbx_config.app[0].selector =
@@ -10458,10 +10492,12 @@ rte_pmd_i40e_set_vf_vlan_anti_spoof(uint8_t port, uint16_t vf_id, uint8_t on)
                return 0; /* already on or off */
 
        vsi->vlan_anti_spoof_on = on;
-       ret = i40e_add_rm_all_vlan_filter(vsi, on);
-       if (ret) {
-               PMD_DRV_LOG(ERR, "Failed to remove VLAN filters.");
-               return -ENOTSUP;
+       if (!vsi->vlan_filter_on) {
+               ret = i40e_add_rm_all_vlan_filter(vsi, on);
+               if (ret) {
+                       PMD_DRV_LOG(ERR, "Failed to add/remove VLAN filters.");
+                       return -ENOTSUP;
+               }
        }
 
        vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
@@ -10644,7 +10680,7 @@ i40e_vsi_set_tx_loopback(struct i40e_vsi *vsi, uint8_t on)
                PMD_INIT_LOG(ERR, "Failed to remove MAC filters.");
                return ret;
        }
-       if (vsi->vlan_anti_spoof_on) {
+       if (vsi->vlan_anti_spoof_on || vsi->vlan_filter_on) {
                ret = i40e_add_rm_all_vlan_filter(vsi, 0);
                if (ret) {
                        PMD_INIT_LOG(ERR, "Failed to remove VLAN filters.");
@@ -10672,7 +10708,7 @@ i40e_vsi_set_tx_loopback(struct i40e_vsi *vsi, uint8_t on)
        ret = i40e_vsi_restore_mac_filter(vsi);
        if (ret)
                return ret;
-       if (vsi->vlan_anti_spoof_on) {
+       if (vsi->vlan_anti_spoof_on || vsi->vlan_filter_on) {
                ret = i40e_add_rm_all_vlan_filter(vsi, 1);
                if (ret)
                        return ret;
@@ -10957,6 +10993,9 @@ int rte_pmd_i40e_set_vf_broadcast(uint8_t port, uint16_t vf_id,
        struct i40e_pf *pf;
        struct i40e_vsi *vsi;
        struct i40e_hw *hw;
+       struct i40e_mac_filter_info filter;
+       struct ether_addr broadcast = {
+               .addr_bytes = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff} };
        int ret;
 
        RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
@@ -10995,12 +11034,19 @@ int rte_pmd_i40e_set_vf_broadcast(uint8_t port, uint16_t vf_id,
                return -EINVAL;
        }
 
-       hw = I40E_VSI_TO_HW(vsi);
+       if (on) {
+               (void)rte_memcpy(&filter.mac_addr, &broadcast, ETHER_ADDR_LEN);
+               filter.filter_type = RTE_MACVLAN_PERFECT_MATCH;
+               ret = i40e_vsi_add_mac(vsi, &filter);
+       } else {
+               ret = i40e_vsi_delete_mac(vsi, &broadcast);
+       }
 
-       ret = i40e_aq_set_vsi_broadcast(hw, vsi->seid, on, NULL);
-       if (ret != I40E_SUCCESS) {
+       if (ret != I40E_SUCCESS && ret != I40E_ERR_PARAM) {
                ret = -ENOTSUP;
                PMD_DRV_LOG(ERR, "Failed to set VSI broadcast");
+       } else {
+               ret = 0;
        }
 
        return ret;
@@ -11080,6 +11126,7 @@ int rte_pmd_i40e_set_vf_vlan_filter(uint8_t port, uint16_t vlan_id,
        struct rte_eth_dev *dev;
        struct i40e_pf *pf;
        struct i40e_hw *hw;
+       struct i40e_vsi *vsi;
        uint16_t vf_idx;
        int ret = I40E_SUCCESS;
 
@@ -11118,14 +11165,22 @@ int rte_pmd_i40e_set_vf_vlan_filter(uint8_t port, uint16_t vlan_id,
                return -ENODEV;
        }
 
-       for (vf_idx = 0; vf_idx < 64 && ret == I40E_SUCCESS; vf_idx++) {
+       for (vf_idx = 0; vf_idx < pf->vf_num && ret == I40E_SUCCESS; vf_idx++) {
                if (vf_mask & ((uint64_t)(1ULL << vf_idx))) {
-                       if (on)
-                               ret = i40e_vsi_add_vlan(pf->vfs[vf_idx].vsi,
-                                                       vlan_id);
-                       else
-                               ret = i40e_vsi_delete_vlan(pf->vfs[vf_idx].vsi,
-                                                          vlan_id);
+                       vsi = pf->vfs[vf_idx].vsi;
+                       if (on) {
+                               if (!vsi->vlan_filter_on) {
+                                       vsi->vlan_filter_on = true;
+                                       if (!vsi->vlan_anti_spoof_on)
+                                               i40e_add_rm_all_vlan_filter(
+                                                       vsi, true);
+                               }
+                               i40e_aq_set_vsi_vlan_promisc(hw, vsi->seid,
+                                                            false, NULL);
+                               ret = i40e_vsi_add_vlan(vsi, vlan_id);
+                       } else {
+                               ret = i40e_vsi_delete_vlan(vsi, vlan_id);
+                       }
                }
        }
 
@@ -11215,3 +11270,443 @@ rte_pmd_i40e_reset_vf_stats(uint8_t port,
 
        return 0;
 }
+
+int
+rte_pmd_i40e_set_vf_max_bw(uint8_t port, uint16_t vf_id, uint32_t bw)
+{
+       struct rte_eth_dev *dev;
+       struct i40e_pf *pf;
+       struct i40e_vsi *vsi;
+       struct i40e_hw *hw;
+       int ret = 0;
+       int i;
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+       dev = &rte_eth_devices[port];
+
+       if (!is_device_supported(dev, &rte_i40e_pmd))
+               return -ENOTSUP;
+
+       pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+       if (vf_id >= pf->vf_num || !pf->vfs) {
+               PMD_DRV_LOG(ERR, "Invalid VF ID.");
+               return -EINVAL;
+       }
+
+       vsi = pf->vfs[vf_id].vsi;
+       if (!vsi) {
+               PMD_DRV_LOG(ERR, "Invalid VSI.");
+               return -EINVAL;
+       }
+
+       if (bw > I40E_QOS_BW_MAX) {
+               PMD_DRV_LOG(ERR, "Bandwidth should not be larger than %dMbps.",
+                           I40E_QOS_BW_MAX);
+               return -EINVAL;
+       }
+
+       if (bw % I40E_QOS_BW_GRANULARITY) {
+               PMD_DRV_LOG(ERR, "Bandwidth should be the multiple of %dMbps.",
+                           I40E_QOS_BW_GRANULARITY);
+               return -EINVAL;
+       }
+
+       bw /= I40E_QOS_BW_GRANULARITY;
+
+       hw = I40E_VSI_TO_HW(vsi);
+
+       /* No change. */
+       if (bw == vsi->bw_info.bw_limit) {
+               PMD_DRV_LOG(INFO,
+                           "No change for VF max bandwidth. Nothing to do.");
+               return 0;
+       }
+
+       /**
+        * VF bandwidth limitation and TC bandwidth limitation cannot be
+        * enabled in parallel, quit if TC bandwidth limitation is enabled.
+        *
+        * If bw is 0, means disable bandwidth limitation. Then no need to
+        * check TC bandwidth limitation.
+        */
+       if (bw) {
+               for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+                       if ((vsi->enabled_tc & BIT_ULL(i)) &&
+                           vsi->bw_info.bw_ets_credits[i])
+                               break;
+               }
+               if (i != I40E_MAX_TRAFFIC_CLASS) {
+                       PMD_DRV_LOG(ERR,
+                                   "TC max bandwidth has been set on this VF,"
+                                   " please disable it first.");
+                       return -EINVAL;
+               }
+       }
+
+       ret = i40e_aq_config_vsi_bw_limit(hw, vsi->seid, (uint16_t)bw, 0, NULL);
+       if (ret) {
+               PMD_DRV_LOG(ERR,
+                           "Failed to set VF %d bandwidth, err(%d).",
+                           vf_id, ret);
+               return -EINVAL;
+       }
+
+       /* Store the configuration. */
+       vsi->bw_info.bw_limit = (uint16_t)bw;
+       vsi->bw_info.bw_max = 0;
+
+       return 0;
+}
+
+int
+rte_pmd_i40e_set_vf_tc_bw_alloc(uint8_t port, uint16_t vf_id,
+                               uint8_t tc_num, uint8_t *bw_weight)
+{
+       struct rte_eth_dev *dev;
+       struct i40e_pf *pf;
+       struct i40e_vsi *vsi;
+       struct i40e_hw *hw;
+       struct i40e_aqc_configure_vsi_tc_bw_data tc_bw;
+       int ret = 0;
+       int i, j;
+       uint16_t sum;
+       bool b_change = false;
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+       dev = &rte_eth_devices[port];
+
+       if (!is_device_supported(dev, &rte_i40e_pmd))
+               return -ENOTSUP;
+
+       pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+       if (vf_id >= pf->vf_num || !pf->vfs) {
+               PMD_DRV_LOG(ERR, "Invalid VF ID.");
+               return -EINVAL;
+       }
+
+       vsi = pf->vfs[vf_id].vsi;
+       if (!vsi) {
+               PMD_DRV_LOG(ERR, "Invalid VSI.");
+               return -EINVAL;
+       }
+
+       if (tc_num > I40E_MAX_TRAFFIC_CLASS) {
+               PMD_DRV_LOG(ERR, "TCs should be no more than %d.",
+                           I40E_MAX_TRAFFIC_CLASS);
+               return -EINVAL;
+       }
+
+       sum = 0;
+       for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+               if (vsi->enabled_tc & BIT_ULL(i))
+                       sum++;
+       }
+       if (sum != tc_num) {
+               PMD_DRV_LOG(ERR,
+                           "Weight should be set for all %d enabled TCs.",
+                           sum);
+               return -EINVAL;
+       }
+
+       sum = 0;
+       for (i = 0; i < tc_num; i++) {
+               if (!bw_weight[i]) {
+                       PMD_DRV_LOG(ERR,
+                                   "The weight should be 1 at least.");
+                       return -EINVAL;
+               }
+               sum += bw_weight[i];
+       }
+       if (sum != 100) {
+               PMD_DRV_LOG(ERR,
+                           "The summary of the TC weight should be 100.");
+               return -EINVAL;
+       }
+
+       /**
+        * Create the configuration for all the TCs.
+        */
+       memset(&tc_bw, 0, sizeof(tc_bw));
+       tc_bw.tc_valid_bits = vsi->enabled_tc;
+       j = 0;
+       for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+               if (vsi->enabled_tc & BIT_ULL(i)) {
+                       if (bw_weight[j] !=
+                               vsi->bw_info.bw_ets_share_credits[i])
+                               b_change = true;
+
+                       tc_bw.tc_bw_credits[i] = bw_weight[j];
+                       j++;
+               }
+       }
+
+       /* No change. */
+       if (!b_change) {
+               PMD_DRV_LOG(INFO,
+                           "No change for TC allocated bandwidth."
+                           " Nothing to do.");
+               return 0;
+       }
+
+       hw = I40E_VSI_TO_HW(vsi);
+
+       ret = i40e_aq_config_vsi_tc_bw(hw, vsi->seid, &tc_bw, NULL);
+       if (ret) {
+               PMD_DRV_LOG(ERR,
+                           "Failed to set VF %d TC bandwidth weight, err(%d).",
+                           vf_id, ret);
+               return -EINVAL;
+       }
+
+       /* Store the configuration. */
+       j = 0;
+       for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+               if (vsi->enabled_tc & BIT_ULL(i)) {
+                       vsi->bw_info.bw_ets_share_credits[i] = bw_weight[j];
+                       j++;
+               }
+       }
+
+       return 0;
+}
+
+int
+rte_pmd_i40e_set_vf_tc_max_bw(uint8_t port, uint16_t vf_id,
+                             uint8_t tc_no, uint32_t bw)
+{
+       struct rte_eth_dev *dev;
+       struct i40e_pf *pf;
+       struct i40e_vsi *vsi;
+       struct i40e_hw *hw;
+       struct i40e_aqc_configure_vsi_ets_sla_bw_data tc_bw;
+       int ret = 0;
+       int i;
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+       dev = &rte_eth_devices[port];
+
+       if (!is_device_supported(dev, &rte_i40e_pmd))
+               return -ENOTSUP;
+
+       pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+       if (vf_id >= pf->vf_num || !pf->vfs) {
+               PMD_DRV_LOG(ERR, "Invalid VF ID.");
+               return -EINVAL;
+       }
+
+       vsi = pf->vfs[vf_id].vsi;
+       if (!vsi) {
+               PMD_DRV_LOG(ERR, "Invalid VSI.");
+               return -EINVAL;
+       }
+
+       if (bw > I40E_QOS_BW_MAX) {
+               PMD_DRV_LOG(ERR, "Bandwidth should not be larger than %dMbps.",
+                           I40E_QOS_BW_MAX);
+               return -EINVAL;
+       }
+
+       if (bw % I40E_QOS_BW_GRANULARITY) {
+               PMD_DRV_LOG(ERR, "Bandwidth should be the multiple of %dMbps.",
+                           I40E_QOS_BW_GRANULARITY);
+               return -EINVAL;
+       }
+
+       bw /= I40E_QOS_BW_GRANULARITY;
+
+       if (tc_no >= I40E_MAX_TRAFFIC_CLASS) {
+               PMD_DRV_LOG(ERR, "TC No. should be less than %d.",
+                           I40E_MAX_TRAFFIC_CLASS);
+               return -EINVAL;
+       }
+
+       hw = I40E_VSI_TO_HW(vsi);
+
+       if (!(vsi->enabled_tc & BIT_ULL(tc_no))) {
+               PMD_DRV_LOG(ERR, "VF %d TC %d isn't enabled.",
+                           vf_id, tc_no);
+               return -EINVAL;
+       }
+
+       /* No change. */
+       if (bw == vsi->bw_info.bw_ets_credits[tc_no]) {
+               PMD_DRV_LOG(INFO,
+                           "No change for TC max bandwidth. Nothing to do.");
+               return 0;
+       }
+
+       /**
+        * VF bandwidth limitation and TC bandwidth limitation cannot be
+        * enabled in parallel, disable VF bandwidth limitation if it's
+        * enabled.
+        * If bw is 0, means disable bandwidth limitation. Then no need to
+        * care about VF bandwidth limitation configuration.
+        */
+       if (bw && vsi->bw_info.bw_limit) {
+               ret = i40e_aq_config_vsi_bw_limit(hw, vsi->seid, 0, 0, NULL);
+               if (ret) {
+                       PMD_DRV_LOG(ERR,
+                                   "Failed to disable VF(%d)"
+                                   " bandwidth limitation, err(%d).",
+                                   vf_id, ret);
+                       return -EINVAL;
+               }
+
+               PMD_DRV_LOG(INFO,
+                           "VF max bandwidth is disabled according"
+                           " to TC max bandwidth setting.");
+       }
+
+       /**
+        * Get all the TCs' info to create a whole picture.
+        * Because the incremental change isn't permitted.
+        */
+       memset(&tc_bw, 0, sizeof(tc_bw));
+       tc_bw.tc_valid_bits = vsi->enabled_tc;
+       for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+               if (vsi->enabled_tc & BIT_ULL(i)) {
+                       tc_bw.tc_bw_credits[i] =
+                               rte_cpu_to_le_16(
+                                       vsi->bw_info.bw_ets_credits[i]);
+               }
+       }
+       tc_bw.tc_bw_credits[tc_no] = 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) {
+               PMD_DRV_LOG(ERR,
+                           "Failed to set VF %d TC %d max bandwidth, err(%d).",
+                           vf_id, tc_no, ret);
+               return -EINVAL;
+       }
+
+       /* Store the configuration. */
+       vsi->bw_info.bw_ets_credits[tc_no] = (uint16_t)bw;
+
+       return 0;
+}
+
+int
+rte_pmd_i40e_set_tc_strict_prio(uint8_t port, uint8_t tc_map)
+{
+       struct rte_eth_dev *dev;
+       struct i40e_pf *pf;
+       struct i40e_vsi *vsi;
+       struct i40e_veb *veb;
+       struct i40e_hw *hw;
+       struct i40e_aqc_configure_switching_comp_ets_data ets_data;
+       int i;
+       int ret;
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+       dev = &rte_eth_devices[port];
+
+       if (!is_device_supported(dev, &rte_i40e_pmd))
+               return -ENOTSUP;
+
+       pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+       vsi = pf->main_vsi;
+       if (!vsi) {
+               PMD_DRV_LOG(ERR, "Invalid VSI.");
+               return -EINVAL;
+       }
+
+       veb = vsi->veb;
+       if (!veb) {
+               PMD_DRV_LOG(ERR, "Invalid VEB.");
+               return -EINVAL;
+       }
+
+       if ((tc_map & veb->enabled_tc) != tc_map) {
+               PMD_DRV_LOG(ERR,
+                           "TC bitmap isn't the subset of enabled TCs 0x%x.",
+                           veb->enabled_tc);
+               return -EINVAL;
+       }
+
+       if (tc_map == veb->strict_prio_tc) {
+               PMD_DRV_LOG(INFO, "No change for TC bitmap. Nothing to do.");
+               return 0;
+       }
+
+       hw = I40E_VSI_TO_HW(vsi);
+
+       /* Disable DCBx if it's the first time to set strict priority. */
+       if (!veb->strict_prio_tc) {
+               ret = i40e_aq_stop_lldp(hw, true, NULL);
+               if (ret)
+                       PMD_DRV_LOG(INFO,
+                                   "Failed to disable DCBx as it's already"
+                                   " disabled.");
+               else
+                       PMD_DRV_LOG(INFO,
+                                   "DCBx is disabled according to strict"
+                                   " priority setting.");
+       }
+
+       memset(&ets_data, 0, sizeof(ets_data));
+       ets_data.tc_valid_bits = veb->enabled_tc;
+       ets_data.seepage = I40E_AQ_ETS_SEEPAGE_EN_MASK;
+       ets_data.tc_strict_priority_flags = tc_map;
+       /* Get all TCs' bandwidth. */
+       for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+               if (veb->enabled_tc & BIT_ULL(i)) {
+                       /* For rubust, if bandwidth is 0, use 1 instead. */
+                       if (veb->bw_info.bw_ets_share_credits[i])
+                               ets_data.tc_bw_share_credits[i] =
+                                       veb->bw_info.bw_ets_share_credits[i];
+                       else
+                               ets_data.tc_bw_share_credits[i] =
+                                       I40E_QOS_BW_WEIGHT_MIN;
+               }
+       }
+
+       if (!veb->strict_prio_tc)
+               ret = i40e_aq_config_switch_comp_ets(
+                       hw, veb->uplink_seid,
+                       &ets_data, i40e_aqc_opc_enable_switching_comp_ets,
+                       NULL);
+       else if (tc_map)
+               ret = i40e_aq_config_switch_comp_ets(
+                       hw, veb->uplink_seid,
+                       &ets_data, i40e_aqc_opc_modify_switching_comp_ets,
+                       NULL);
+       else
+               ret = i40e_aq_config_switch_comp_ets(
+                       hw, veb->uplink_seid,
+                       &ets_data, i40e_aqc_opc_disable_switching_comp_ets,
+                       NULL);
+
+       if (ret) {
+               PMD_DRV_LOG(ERR,
+                           "Failed to set TCs' strict priority mode."
+                           " err (%d)", ret);
+               return -EINVAL;
+       }
+
+       veb->strict_prio_tc = tc_map;
+
+       /* Enable DCBx again, if all the TCs' strict priority disabled. */
+       if (!tc_map) {
+               ret = i40e_aq_start_lldp(hw, NULL);
+               if (ret) {
+                       PMD_DRV_LOG(ERR,
+                                   "Failed to enable DCBx, err(%d).", ret);
+                       return -EINVAL;
+               }
+
+               PMD_DRV_LOG(INFO,
+                           "DCBx is enabled again according to strict"
+                           " priority setting.");
+       }
+
+       return ret;
+}