diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_tm.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_tm.c | 1043 |
1 files changed, 1043 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_tm.c b/drivers/net/ixgbe/ixgbe_tm.c new file mode 100644 index 00000000..cdcf45cb --- /dev/null +++ b/drivers/net/ixgbe/ixgbe_tm.c @@ -0,0 +1,1043 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2017 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <rte_malloc.h> + +#include "ixgbe_ethdev.h" + +static int ixgbe_tm_capabilities_get(struct rte_eth_dev *dev, + struct rte_tm_capabilities *cap, + struct rte_tm_error *error); +static int ixgbe_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 ixgbe_shaper_profile_del(struct rte_eth_dev *dev, + uint32_t shaper_profile_id, + struct rte_tm_error *error); +static int ixgbe_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, + struct rte_tm_node_params *params, + struct rte_tm_error *error); +static int ixgbe_node_delete(struct rte_eth_dev *dev, uint32_t node_id, + struct rte_tm_error *error); +static int ixgbe_node_type_get(struct rte_eth_dev *dev, uint32_t node_id, + int *is_leaf, struct rte_tm_error *error); +static int ixgbe_level_capabilities_get(struct rte_eth_dev *dev, + uint32_t level_id, + struct rte_tm_level_capabilities *cap, + struct rte_tm_error *error); +static int ixgbe_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 ixgbe_hierarchy_commit(struct rte_eth_dev *dev, + int clear_on_fail, + struct rte_tm_error *error); + +const struct rte_tm_ops ixgbe_tm_ops = { + .capabilities_get = ixgbe_tm_capabilities_get, + .shaper_profile_add = ixgbe_shaper_profile_add, + .shaper_profile_delete = ixgbe_shaper_profile_del, + .node_add = ixgbe_node_add, + .node_delete = ixgbe_node_delete, + .node_type_get = ixgbe_node_type_get, + .level_capabilities_get = ixgbe_level_capabilities_get, + .node_capabilities_get = ixgbe_node_capabilities_get, + .hierarchy_commit = ixgbe_hierarchy_commit, +}; + +int +ixgbe_tm_ops_get(struct rte_eth_dev *dev __rte_unused, + void *arg) +{ + if (!arg) + return -EINVAL; + + *(const void **)arg = &ixgbe_tm_ops; + + return 0; +} + +void +ixgbe_tm_conf_init(struct rte_eth_dev *dev) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + + /* initialize shaper profile list */ + TAILQ_INIT(&tm_conf->shaper_profile_list); + + /* initialize node configuration */ + tm_conf->root = NULL; + TAILQ_INIT(&tm_conf->queue_list); + TAILQ_INIT(&tm_conf->tc_list); + tm_conf->nb_tc_node = 0; + tm_conf->nb_queue_node = 0; + tm_conf->committed = false; +} + +void +ixgbe_tm_conf_uninit(struct rte_eth_dev *dev) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + struct ixgbe_tm_shaper_profile *shaper_profile; + struct ixgbe_tm_node *tm_node; + + /* clear node configuration */ + while ((tm_node = TAILQ_FIRST(&tm_conf->queue_list))) { + TAILQ_REMOVE(&tm_conf->queue_list, tm_node, node); + rte_free(tm_node); + } + tm_conf->nb_queue_node = 0; + while ((tm_node = TAILQ_FIRST(&tm_conf->tc_list))) { + TAILQ_REMOVE(&tm_conf->tc_list, tm_node, node); + rte_free(tm_node); + } + tm_conf->nb_tc_node = 0; + if (tm_conf->root) { + rte_free(tm_conf->root); + tm_conf->root = NULL; + } + + /* Remove all shaper profiles */ + while ((shaper_profile = + TAILQ_FIRST(&tm_conf->shaper_profile_list))) { + TAILQ_REMOVE(&tm_conf->shaper_profile_list, + shaper_profile, node); + rte_free(shaper_profile); + } +} + +static inline uint8_t +ixgbe_tc_nb_get(struct rte_eth_dev *dev) +{ + struct rte_eth_conf *eth_conf; + uint8_t nb_tcs = 0; + + eth_conf = &dev->data->dev_conf; + if (eth_conf->txmode.mq_mode == ETH_MQ_TX_DCB) { + nb_tcs = eth_conf->tx_adv_conf.dcb_tx_conf.nb_tcs; + } else if (eth_conf->txmode.mq_mode == ETH_MQ_TX_VMDQ_DCB) { + if (eth_conf->tx_adv_conf.vmdq_dcb_tx_conf.nb_queue_pools == + ETH_32_POOLS) + nb_tcs = ETH_4_TCS; + else + nb_tcs = ETH_8_TCS; + } else { + nb_tcs = 1; + } + + return nb_tcs; +} + +static int +ixgbe_tm_capabilities_get(struct rte_eth_dev *dev, + struct rte_tm_capabilities *cap, + struct rte_tm_error *error) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint8_t tc_nb = ixgbe_tc_nb_get(dev); + + if (!cap || !error) + return -EINVAL; + + if (tc_nb > hw->mac.max_tx_queues) + return -EINVAL; + + error->type = RTE_TM_ERROR_TYPE_NONE; + + /* set all the parameters to 0 first. */ + memset(cap, 0, sizeof(struct rte_tm_capabilities)); + + /** + * here is the max capability not the current configuration. + */ + /* port + TCs + queues */ + cap->n_nodes_max = 1 + IXGBE_DCB_MAX_TRAFFIC_CLASS + + hw->mac.max_tx_queues; + cap->n_levels_max = 3; + cap->non_leaf_nodes_identical = 1; + cap->leaf_nodes_identical = 1; + cap->shaper_n_max = cap->n_nodes_max; + cap->shaper_private_n_max = cap->n_nodes_max; + cap->shaper_private_dual_rate_n_max = 0; + cap->shaper_private_rate_min = 0; + /* 10Gbps -> 1.25GBps */ + cap->shaper_private_rate_max = 1250000000ull; + cap->shaper_shared_n_max = 0; + cap->shaper_shared_n_nodes_per_shaper_max = 0; + cap->shaper_shared_n_shapers_per_node_max = 0; + cap->shaper_shared_dual_rate_n_max = 0; + cap->shaper_shared_rate_min = 0; + cap->shaper_shared_rate_max = 0; + cap->sched_n_children_max = hw->mac.max_tx_queues; + /** + * HW supports SP. But no plan to support it now. + * So, all the nodes should have the same priority. + */ + cap->sched_sp_n_priorities_max = 1; + cap->sched_wfq_n_children_per_group_max = 0; + cap->sched_wfq_n_groups_max = 0; + /** + * SW only supports fair round robin now. + * So, all the nodes should have the same weight. + */ + cap->sched_wfq_weight_max = 1; + cap->cman_head_drop_supported = 0; + cap->dynamic_update_mask = 0; + cap->shaper_pkt_length_adjust_min = RTE_TM_ETH_FRAMING_OVERHEAD; + cap->shaper_pkt_length_adjust_max = RTE_TM_ETH_FRAMING_OVERHEAD_FCS; + cap->cman_wred_context_n_max = 0; + cap->cman_wred_context_private_n_max = 0; + cap->cman_wred_context_shared_n_max = 0; + cap->cman_wred_context_shared_n_nodes_per_context_max = 0; + cap->cman_wred_context_shared_n_contexts_per_node_max = 0; + cap->stats_mask = 0; + + return 0; +} + +static inline struct ixgbe_tm_shaper_profile * +ixgbe_shaper_profile_search(struct rte_eth_dev *dev, + uint32_t shaper_profile_id) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + struct ixgbe_shaper_profile_list *shaper_profile_list = + &tm_conf->shaper_profile_list; + struct ixgbe_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 +ixgbe_shaper_profile_param_check(struct rte_tm_shaper_params *profile, + struct rte_tm_error *error) +{ + /* min rate not supported */ + if (profile->committed.rate) { + error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE_COMMITTED_RATE; + error->message = "committed rate not supported"; + return -EINVAL; + } + /* 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 +ixgbe_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 ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + struct ixgbe_tm_shaper_profile *shaper_profile; + int ret; + + if (!profile || !error) + return -EINVAL; + + ret = ixgbe_shaper_profile_param_check(profile, error); + if (ret) + return ret; + + shaper_profile = ixgbe_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("ixgbe_tm_shaper_profile", + sizeof(struct ixgbe_tm_shaper_profile), + 0); + if (!shaper_profile) + return -ENOMEM; + shaper_profile->shaper_profile_id = shaper_profile_id; + (void)rte_memcpy(&shaper_profile->profile, profile, + sizeof(struct rte_tm_shaper_params)); + TAILQ_INSERT_TAIL(&tm_conf->shaper_profile_list, + shaper_profile, node); + + return 0; +} + +static int +ixgbe_shaper_profile_del(struct rte_eth_dev *dev, + uint32_t shaper_profile_id, + struct rte_tm_error *error) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + struct ixgbe_tm_shaper_profile *shaper_profile; + + if (!error) + return -EINVAL; + + shaper_profile = ixgbe_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(&tm_conf->shaper_profile_list, shaper_profile, node); + rte_free(shaper_profile); + + return 0; +} + +static inline struct ixgbe_tm_node * +ixgbe_tm_node_search(struct rte_eth_dev *dev, uint32_t node_id, + enum ixgbe_tm_node_type *node_type) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + struct ixgbe_tm_node *tm_node; + + if (tm_conf->root && tm_conf->root->id == node_id) { + *node_type = IXGBE_TM_NODE_TYPE_PORT; + return tm_conf->root; + } + + TAILQ_FOREACH(tm_node, &tm_conf->tc_list, node) { + if (tm_node->id == node_id) { + *node_type = IXGBE_TM_NODE_TYPE_TC; + return tm_node; + } + } + + TAILQ_FOREACH(tm_node, &tm_conf->queue_list, node) { + if (tm_node->id == node_id) { + *node_type = IXGBE_TM_NODE_TYPE_QUEUE; + return tm_node; + } + } + + return NULL; +} + +static void +ixgbe_queue_base_nb_get(struct rte_eth_dev *dev, uint16_t tc_node_no, + uint16_t *base, uint16_t *nb) +{ + uint8_t nb_tcs = ixgbe_tc_nb_get(dev); + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); + uint16_t vf_num = pci_dev->max_vfs; + + *base = 0; + *nb = 0; + + /* VT on */ + if (vf_num) { + /* no DCB */ + if (nb_tcs == 1) { + if (vf_num >= ETH_32_POOLS) { + *nb = 2; + *base = vf_num * 2; + } else if (vf_num >= ETH_16_POOLS) { + *nb = 4; + *base = vf_num * 4; + } else { + *nb = 8; + *base = vf_num * 8; + } + } else { + /* DCB */ + *nb = 1; + *base = vf_num * nb_tcs + tc_node_no; + } + } else { + /* VT off */ + if (nb_tcs == ETH_8_TCS) { + switch (tc_node_no) { + case 0: + *base = 0; + *nb = 32; + break; + case 1: + *base = 32; + *nb = 32; + break; + case 2: + *base = 64; + *nb = 16; + break; + case 3: + *base = 80; + *nb = 16; + break; + case 4: + *base = 96; + *nb = 8; + break; + case 5: + *base = 104; + *nb = 8; + break; + case 6: + *base = 112; + *nb = 8; + break; + case 7: + *base = 120; + *nb = 8; + break; + default: + return; + } + } else { + switch (tc_node_no) { + /** + * If no VF and no DCB, only 64 queues can be used. + * This case also be covered by this "case 0". + */ + case 0: + *base = 0; + *nb = 64; + break; + case 1: + *base = 64; + *nb = 32; + break; + case 2: + *base = 96; + *nb = 16; + break; + case 3: + *base = 112; + *nb = 16; + break; + default: + return; + } + } + } +} + +static int +ixgbe_node_param_check(uint32_t node_id, uint32_t parent_node_id, + uint32_t priority, uint32_t weight, + struct rte_tm_node_params *params, + struct rte_tm_error *error) +{ + if (node_id == RTE_TM_NODE_ID_NULL) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "invalid node id"; + return -EINVAL; + } + + if (priority) { + error->type = RTE_TM_ERROR_TYPE_NODE_PRIORITY; + error->message = "priority should be 0"; + return -EINVAL; + } + + if (weight != 1) { + error->type = RTE_TM_ERROR_TYPE_NODE_WEIGHT; + error->message = "weight must be 1"; + return -EINVAL; + } + + /* not support shared shaper */ + if (params->shared_shaper_id) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_SHARED_SHAPER_ID; + error->message = "shared shaper not supported"; + return -EINVAL; + } + if (params->n_shared_shapers) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_N_SHARED_SHAPERS; + error->message = "shared shaper not supported"; + return -EINVAL; + } + + /* for root node */ + if (parent_node_id == RTE_TM_NODE_ID_NULL) { + /* check the unsupported parameters */ + if (params->nonleaf.wfq_weight_mode) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_WFQ_WEIGHT_MODE; + error->message = "WFQ not supported"; + return -EINVAL; + } + if (params->nonleaf.n_sp_priorities != 1) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_N_SP_PRIORITIES; + error->message = "SP priority not supported"; + return -EINVAL; + } else if (params->nonleaf.wfq_weight_mode && + !(*params->nonleaf.wfq_weight_mode)) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_WFQ_WEIGHT_MODE; + error->message = "WFP should be byte mode"; + return -EINVAL; + } + + return 0; + } + + /* for TC or queue node */ + /* check the unsupported parameters */ + if (params->leaf.cman) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_CMAN; + error->message = "Congestion management not supported"; + return -EINVAL; + } + if (params->leaf.wred.wred_profile_id != + RTE_TM_WRED_PROFILE_ID_NONE) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_WRED_PROFILE_ID; + error->message = "WRED not supported"; + return -EINVAL; + } + if (params->leaf.wred.shared_wred_context_id) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_SHARED_WRED_CONTEXT_ID; + error->message = "WRED not supported"; + return -EINVAL; + } + if (params->leaf.wred.n_shared_wred_contexts) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_N_SHARED_WRED_CONTEXTS; + error->message = "WRED not supported"; + return -EINVAL; + } + + return 0; +} + +/** + * Now the TC and queue configuration is controlled by DCB. + * We need check if the node configuration follows the DCB configuration. + * In the future, we may use TM to cover DCB. + */ +static int +ixgbe_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, + struct rte_tm_node_params *params, + struct rte_tm_error *error) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + enum ixgbe_tm_node_type node_type = IXGBE_TM_NODE_TYPE_MAX; + enum ixgbe_tm_node_type parent_node_type = IXGBE_TM_NODE_TYPE_MAX; + struct ixgbe_tm_shaper_profile *shaper_profile; + struct ixgbe_tm_node *tm_node; + struct ixgbe_tm_node *parent_node; + uint8_t nb_tcs; + uint16_t q_base = 0; + uint16_t q_nb = 0; + int ret; + + if (!params || !error) + return -EINVAL; + + /* if already committed */ + if (tm_conf->committed) { + error->type = RTE_TM_ERROR_TYPE_UNSPECIFIED; + error->message = "already committed"; + return -EINVAL; + } + + ret = ixgbe_node_param_check(node_id, parent_node_id, priority, weight, + params, error); + if (ret) + return ret; + + /* check if the node ID is already used */ + if (ixgbe_tm_node_search(dev, node_id, &node_type)) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "node id already used"; + return -EINVAL; + } + + /* check the shaper profile id */ + shaper_profile = ixgbe_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 */ + if (level_id != RTE_TM_NODE_LEVEL_ID_ANY && + level_id > IXGBE_TM_NODE_TYPE_PORT) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS; + error->message = "Wrong level"; + return -EINVAL; + } + + /* obviously no more than one root */ + if (tm_conf->root) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARENT_NODE_ID; + error->message = "already have a root"; + return -EINVAL; + } + + /* add the root node */ + tm_node = rte_zmalloc("ixgbe_tm_node", + sizeof(struct ixgbe_tm_node), + 0); + if (!tm_node) + return -ENOMEM; + tm_node->id = node_id; + tm_node->priority = priority; + tm_node->weight = weight; + tm_node->reference_count = 0; + tm_node->no = 0; + tm_node->parent = NULL; + tm_node->shaper_profile = shaper_profile; + (void)rte_memcpy(&tm_node->params, params, + sizeof(struct rte_tm_node_params)); + tm_conf->root = tm_node; + + /* increase the reference counter of the shaper profile */ + shaper_profile->reference_count++; + + return 0; + } + + /* TC or queue node */ + /* check the parent node */ + parent_node = ixgbe_tm_node_search(dev, parent_node_id, + &parent_node_type); + if (!parent_node) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARENT_NODE_ID; + error->message = "parent not exist"; + return -EINVAL; + } + if (parent_node_type != IXGBE_TM_NODE_TYPE_PORT && + parent_node_type != IXGBE_TM_NODE_TYPE_TC) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARENT_NODE_ID; + error->message = "parent is not port or TC"; + return -EINVAL; + } + /* check level */ + if (level_id != RTE_TM_NODE_LEVEL_ID_ANY && + level_id != parent_node_type + 1) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS; + error->message = "Wrong level"; + return -EINVAL; + } + + /* check the node number */ + if (parent_node_type == IXGBE_TM_NODE_TYPE_PORT) { + /* check TC number */ + nb_tcs = ixgbe_tc_nb_get(dev); + if (tm_conf->nb_tc_node >= nb_tcs) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too many TCs"; + return -EINVAL; + } + } else { + /* check queue number */ + if (tm_conf->nb_queue_node >= dev->data->nb_tx_queues) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too many queues"; + return -EINVAL; + } + + ixgbe_queue_base_nb_get(dev, parent_node->no, &q_base, &q_nb); + if (parent_node->reference_count >= q_nb) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too many queues than TC supported"; + return -EINVAL; + } + + /** + * check the node id. + * For queue, the node id means queue id. + */ + if (node_id >= dev->data->nb_tx_queues) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too large queue id"; + return -EINVAL; + } + } + + /* add the TC or queue node */ + tm_node = rte_zmalloc("ixgbe_tm_node", + sizeof(struct ixgbe_tm_node), + 0); + if (!tm_node) + return -ENOMEM; + tm_node->id = node_id; + tm_node->priority = priority; + tm_node->weight = weight; + tm_node->reference_count = 0; + tm_node->parent = parent_node; + tm_node->shaper_profile = shaper_profile; + (void)rte_memcpy(&tm_node->params, params, + sizeof(struct rte_tm_node_params)); + if (parent_node_type == IXGBE_TM_NODE_TYPE_PORT) { + tm_node->no = parent_node->reference_count; + TAILQ_INSERT_TAIL(&tm_conf->tc_list, + tm_node, node); + tm_conf->nb_tc_node++; + } else { + tm_node->no = q_base + parent_node->reference_count; + TAILQ_INSERT_TAIL(&tm_conf->queue_list, + tm_node, node); + tm_conf->nb_queue_node++; + } + tm_node->parent->reference_count++; + + /* increase the reference counter of the shaper profile */ + shaper_profile->reference_count++; + + return 0; +} + +static int +ixgbe_node_delete(struct rte_eth_dev *dev, uint32_t node_id, + struct rte_tm_error *error) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + enum ixgbe_tm_node_type node_type = IXGBE_TM_NODE_TYPE_MAX; + struct ixgbe_tm_node *tm_node; + + if (!error) + return -EINVAL; + + /* if already committed */ + if (tm_conf->committed) { + error->type = RTE_TM_ERROR_TYPE_UNSPECIFIED; + error->message = "already committed"; + return -EINVAL; + } + + if (node_id == RTE_TM_NODE_ID_NULL) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "invalid node id"; + return -EINVAL; + } + + /* check the if the node id exists */ + tm_node = ixgbe_tm_node_search(dev, node_id, &node_type); + if (!tm_node) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "no such node"; + return -EINVAL; + } + + /* the node should have no child */ + if (tm_node->reference_count) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = + "cannot delete a node which has children"; + return -EINVAL; + } + + /* root node */ + if (node_type == IXGBE_TM_NODE_TYPE_PORT) { + tm_node->shaper_profile->reference_count--; + rte_free(tm_node); + tm_conf->root = NULL; + return 0; + } + + /* TC or queue node */ + tm_node->shaper_profile->reference_count--; + tm_node->parent->reference_count--; + if (node_type == IXGBE_TM_NODE_TYPE_TC) { + TAILQ_REMOVE(&tm_conf->tc_list, tm_node, node); + tm_conf->nb_tc_node--; + } else { + TAILQ_REMOVE(&tm_conf->queue_list, tm_node, node); + tm_conf->nb_queue_node--; + } + rte_free(tm_node); + + return 0; +} + +static int +ixgbe_node_type_get(struct rte_eth_dev *dev, uint32_t node_id, + int *is_leaf, struct rte_tm_error *error) +{ + enum ixgbe_tm_node_type node_type = IXGBE_TM_NODE_TYPE_MAX; + struct ixgbe_tm_node *tm_node; + + if (!is_leaf || !error) + return -EINVAL; + + if (node_id == RTE_TM_NODE_ID_NULL) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "invalid node id"; + return -EINVAL; + } + + /* check if the node id exists */ + tm_node = ixgbe_tm_node_search(dev, node_id, &node_type); + if (!tm_node) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "no such node"; + return -EINVAL; + } + + if (node_type == IXGBE_TM_NODE_TYPE_QUEUE) + *is_leaf = true; + else + *is_leaf = false; + + return 0; +} + +static int +ixgbe_level_capabilities_get(struct rte_eth_dev *dev, + uint32_t level_id, + struct rte_tm_level_capabilities *cap, + struct rte_tm_error *error) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + + if (!cap || !error) + return -EINVAL; + + if (level_id >= IXGBE_TM_NODE_TYPE_MAX) { + error->type = RTE_TM_ERROR_TYPE_LEVEL_ID; + error->message = "too deep level"; + return -EINVAL; + } + + /* root node */ + if (level_id == IXGBE_TM_NODE_TYPE_PORT) { + cap->n_nodes_max = 1; + cap->n_nodes_nonleaf_max = 1; + cap->n_nodes_leaf_max = 0; + cap->non_leaf_nodes_identical = true; + cap->leaf_nodes_identical = true; + cap->nonleaf.shaper_private_supported = true; + cap->nonleaf.shaper_private_dual_rate_supported = false; + cap->nonleaf.shaper_private_rate_min = 0; + /* 10Gbps -> 1.25GBps */ + cap->nonleaf.shaper_private_rate_max = 1250000000ull; + cap->nonleaf.shaper_shared_n_max = 0; + cap->nonleaf.sched_n_children_max = IXGBE_DCB_MAX_TRAFFIC_CLASS; + cap->nonleaf.sched_sp_n_priorities_max = 1; + cap->nonleaf.sched_wfq_n_children_per_group_max = 0; + cap->nonleaf.sched_wfq_n_groups_max = 0; + cap->nonleaf.sched_wfq_weight_max = 1; + cap->nonleaf.stats_mask = 0; + + return 0; + } + + /* TC or queue node */ + if (level_id == IXGBE_TM_NODE_TYPE_TC) { + /* TC */ + cap->n_nodes_max = IXGBE_DCB_MAX_TRAFFIC_CLASS; + cap->n_nodes_nonleaf_max = IXGBE_DCB_MAX_TRAFFIC_CLASS; + cap->n_nodes_leaf_max = 0; + cap->non_leaf_nodes_identical = true; + } else { + /* queue */ + cap->n_nodes_max = hw->mac.max_tx_queues; + cap->n_nodes_nonleaf_max = 0; + cap->n_nodes_leaf_max = hw->mac.max_tx_queues; + cap->non_leaf_nodes_identical = true; + } + cap->leaf_nodes_identical = true; + cap->leaf.shaper_private_supported = true; + cap->leaf.shaper_private_dual_rate_supported = false; + cap->leaf.shaper_private_rate_min = 0; + /* 10Gbps -> 1.25GBps */ + cap->leaf.shaper_private_rate_max = 1250000000ull; + cap->leaf.shaper_shared_n_max = 0; + cap->leaf.cman_head_drop_supported = false; + cap->leaf.cman_wred_context_private_supported = true; + cap->leaf.cman_wred_context_shared_n_max = 0; + cap->leaf.stats_mask = 0; + + return 0; +} + +static int +ixgbe_node_capabilities_get(struct rte_eth_dev *dev, + uint32_t node_id, + struct rte_tm_node_capabilities *cap, + struct rte_tm_error *error) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + enum ixgbe_tm_node_type node_type = IXGBE_TM_NODE_TYPE_MAX; + struct ixgbe_tm_node *tm_node; + + if (!cap || !error) + return -EINVAL; + + if (node_id == RTE_TM_NODE_ID_NULL) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "invalid node id"; + return -EINVAL; + } + + /* check if the node id exists */ + tm_node = ixgbe_tm_node_search(dev, node_id, &node_type); + if (!tm_node) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "no such node"; + return -EINVAL; + } + + cap->shaper_private_supported = true; + cap->shaper_private_dual_rate_supported = false; + cap->shaper_private_rate_min = 0; + /* 10Gbps -> 1.25GBps */ + cap->shaper_private_rate_max = 1250000000ull; + cap->shaper_shared_n_max = 0; + + if (node_type == IXGBE_TM_NODE_TYPE_QUEUE) { + cap->leaf.cman_head_drop_supported = false; + cap->leaf.cman_wred_context_private_supported = true; + cap->leaf.cman_wred_context_shared_n_max = 0; + } else { + if (node_type == IXGBE_TM_NODE_TYPE_PORT) + cap->nonleaf.sched_n_children_max = + IXGBE_DCB_MAX_TRAFFIC_CLASS; + else + cap->nonleaf.sched_n_children_max = + hw->mac.max_tx_queues; + cap->nonleaf.sched_sp_n_priorities_max = 1; + cap->nonleaf.sched_wfq_n_children_per_group_max = 0; + cap->nonleaf.sched_wfq_n_groups_max = 0; + cap->nonleaf.sched_wfq_weight_max = 1; + } + + cap->stats_mask = 0; + + return 0; +} + +static int +ixgbe_hierarchy_commit(struct rte_eth_dev *dev, + int clear_on_fail, + struct rte_tm_error *error) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + struct ixgbe_tm_node *tm_node; + uint64_t bw; + int ret; + + if (!error) + return -EINVAL; + + /* check the setting */ + if (!tm_conf->root) + goto done; + + /* not support port max bandwidth yet */ + if (tm_conf->root->shaper_profile->profile.peak.rate) { + error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE; + error->message = "no port max bandwidth"; + goto fail_clear; + } + + /* HW not support TC max bandwidth */ + TAILQ_FOREACH(tm_node, &tm_conf->tc_list, node) { + if (tm_node->shaper_profile->profile.peak.rate) { + error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE; + error->message = "no TC max bandwidth"; + goto fail_clear; + } + } + + /* queue max bandwidth */ + TAILQ_FOREACH(tm_node, &tm_conf->queue_list, node) { + bw = tm_node->shaper_profile->profile.peak.rate; + if (bw) { + /* interpret Bps to Mbps */ + bw = bw * 8 / 1000 / 1000; + ret = ixgbe_set_queue_rate_limit(dev, tm_node->no, bw); + if (ret) { + error->type = RTE_TM_ERROR_TYPE_SHAPER_PROFILE; + error->message = + "failed to set queue max bandwidth"; + goto fail_clear; + } + } + } + +done: + tm_conf->committed = true; + return 0; + +fail_clear: + /* clear all the traffic manager configuration */ + if (clear_on_fail) { + ixgbe_tm_conf_uninit(dev); + ixgbe_tm_conf_init(dev); + } + return -EINVAL; +} |