From cac29c3c00a47e210644cbae6608e9ff0c97f3c3 Mon Sep 17 00:00:00 2001 From: Wenzhuo Lu Date: Thu, 29 Jun 2017 12:23:47 +0800 Subject: [PATCH] net/i40e: support committing TM hierarchy 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 --- drivers/net/i40e/i40e_ethdev.c | 5 ++ drivers/net/i40e/i40e_ethdev.h | 9 +++ drivers/net/i40e/i40e_tm.c | 125 ++++++++++++++++++++++++++++++++ drivers/net/i40e/rte_pmd_i40e.c | 9 --- 4 files changed, 139 insertions(+), 9 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 0091511edf..97a73e1cb9 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -2033,6 +2033,11 @@ i40e_dev_start(struct rte_eth_dev *dev) i40e_filter_restore(pf); + if (!pf->tm_conf.committed) + PMD_DRV_LOG(WARNING, + "please call hierarchy_commit() " + "before starting the port"); + return I40E_SUCCESS; err_up: diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index 38a86f6ec7..48abc05af5 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -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. diff --git a/drivers/net/i40e/i40e_tm.c b/drivers/net/i40e/i40e_tm.c index 35c3b32f65..56013b101f 100644 --- a/drivers/net/i40e/i40e_tm.c +++ b/drivers/net/i40e/i40e_tm.c @@ -63,6 +63,9 @@ 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, @@ -73,6 +76,7 @@ const struct rte_tm_ops i40e_tm_ops = { .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 @@ -851,3 +855,124 @@ 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_list *queue_list = &pf->tm_conf.queue_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) + goto done; + + 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; + } + + goto done; + } + + /* 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) { + if (!tm_node->reference_count) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS; + error->message = "TC without queue assigned"; + goto fail_clear; + } + + 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); + } + + TAILQ_FOREACH(tm_node, queue_list, node) { + bw = tm_node->shaper_profile->profile.peak.rate; + if (bw) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS; + error->message = "not support queue QoS"; + goto fail_clear; + } + } + + 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; + } + + goto done; + +done: + pf->tm_conf.committed = true; + 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; +} diff --git a/drivers/net/i40e/rte_pmd_i40e.c b/drivers/net/i40e/rte_pmd_i40e.c index 4672388919..f12b7f4a19 100644 --- a/drivers/net/i40e/rte_pmd_i40e.c +++ b/drivers/net/i40e/rte_pmd_i40e.c @@ -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) { -- 2.20.1