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Ip=[192.88.158.2]; Helo=[az84smr01.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR03MB476 Subject: [dpdk-dev] [PATCH v2 34/40] net/dpaa: add support for flow control X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Signed-off-by: Hemant Agrawal Signed-off-by: Shreyansh Jain --- doc/guides/nics/features/dpaa.ini | 1 + drivers/net/dpaa/dpaa_ethdev.c | 116 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 117 insertions(+) diff --git a/doc/guides/nics/features/dpaa.ini b/doc/guides/nics/features/dpaa.ini index c09efd8..1ba6b11 100644 --- a/doc/guides/nics/features/dpaa.ini +++ b/doc/guides/nics/features/dpaa.ini @@ -11,6 +11,7 @@ MTU update = Y Promiscuous mode = Y Allmulticast mode = Y Unicast MAC filter = Y +Flow control = Y Basic stats = Y ARMv8 = Y Usage doc = Y diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c index f23e10d..f3d8650 100644 --- a/drivers/net/dpaa/dpaa_ethdev.c +++ b/drivers/net/dpaa/dpaa_ethdev.c @@ -329,6 +329,85 @@ static int dpaa_link_up(struct rte_eth_dev *dev) } static int +dpaa_flow_ctrl_set(struct rte_eth_dev *dev, + struct rte_eth_fc_conf *fc_conf) +{ + struct dpaa_if *dpaa_intf = dev->data->dev_private; + struct rte_eth_fc_conf *net_fc; + + PMD_INIT_FUNC_TRACE(); + + if (!(dpaa_intf->fc_conf)) { + dpaa_intf->fc_conf = rte_zmalloc(NULL, + sizeof(struct rte_eth_fc_conf), MAX_CACHELINE); + if (!dpaa_intf->fc_conf) { + DPAA_PMD_ERR("unable to save flow control info"); + return -ENOMEM; + } + } + net_fc = dpaa_intf->fc_conf; + + if (fc_conf->high_water < fc_conf->low_water) { + DPAA_PMD_ERR("Incorrect Flow Control Configuration"); + return -EINVAL; + } + + if (fc_conf->mode == RTE_FC_NONE) { + return 0; + } else if (fc_conf->mode == RTE_FC_TX_PAUSE || + fc_conf->mode == RTE_FC_FULL) { + fman_if_set_fc_threshold(dpaa_intf->fif, fc_conf->high_water, + fc_conf->low_water, + dpaa_intf->bp_info->bpid); + if (fc_conf->pause_time) + fman_if_set_fc_quanta(dpaa_intf->fif, + fc_conf->pause_time); + } + + /* Save the information in dpaa device */ + net_fc->pause_time = fc_conf->pause_time; + net_fc->high_water = fc_conf->high_water; + net_fc->low_water = fc_conf->low_water; + net_fc->send_xon = fc_conf->send_xon; + net_fc->mac_ctrl_frame_fwd = fc_conf->mac_ctrl_frame_fwd; + net_fc->mode = fc_conf->mode; + net_fc->autoneg = fc_conf->autoneg; + + return 0; +} + +static int +dpaa_flow_ctrl_get(struct rte_eth_dev *dev, + struct rte_eth_fc_conf *fc_conf) +{ + struct dpaa_if *dpaa_intf = dev->data->dev_private; + struct rte_eth_fc_conf *net_fc = dpaa_intf->fc_conf; + int ret; + + PMD_INIT_FUNC_TRACE(); + + if (net_fc) { + fc_conf->pause_time = net_fc->pause_time; + fc_conf->high_water = net_fc->high_water; + fc_conf->low_water = net_fc->low_water; + fc_conf->send_xon = net_fc->send_xon; + fc_conf->mac_ctrl_frame_fwd = net_fc->mac_ctrl_frame_fwd; + fc_conf->mode = net_fc->mode; + fc_conf->autoneg = net_fc->autoneg; + return 0; + } + ret = fman_if_get_fc_threshold(dpaa_intf->fif); + if (ret) { + fc_conf->mode = RTE_FC_TX_PAUSE; + fc_conf->pause_time = fman_if_get_fc_quanta(dpaa_intf->fif); + } else { + fc_conf->mode = RTE_FC_NONE; + } + + return 0; +} + +static int dpaa_dev_add_mac_addr(struct rte_eth_dev *dev, struct ether_addr *addr, uint32_t index, @@ -391,6 +470,9 @@ static struct eth_dev_ops dpaa_devops = { .rx_queue_release = dpaa_eth_rx_queue_release, .tx_queue_release = dpaa_eth_tx_queue_release, + .flow_ctrl_get = dpaa_flow_ctrl_get, + .flow_ctrl_set = dpaa_flow_ctrl_set, + .link_update = dpaa_eth_link_update, .stats_get = dpaa_eth_stats_get, .stats_reset = dpaa_eth_stats_reset, @@ -407,6 +489,33 @@ static struct eth_dev_ops dpaa_devops = { }; +static int dpaa_fc_set_default(struct dpaa_if *dpaa_intf) +{ + struct rte_eth_fc_conf *fc_conf; + int ret; + + PMD_INIT_FUNC_TRACE(); + + if (!(dpaa_intf->fc_conf)) { + dpaa_intf->fc_conf = rte_zmalloc(NULL, + sizeof(struct rte_eth_fc_conf), MAX_CACHELINE); + if (!dpaa_intf->fc_conf) { + DPAA_PMD_ERR("unable to save flow control info"); + return -ENOMEM; + } + } + fc_conf = dpaa_intf->fc_conf; + ret = fman_if_get_fc_threshold(dpaa_intf->fif); + if (ret) { + fc_conf->mode = RTE_FC_TX_PAUSE; + fc_conf->pause_time = fman_if_get_fc_quanta(dpaa_intf->fif); + } else { + fc_conf->mode = RTE_FC_NONE; + } + + return 0; +} + /* Initialise an Rx FQ */ static int dpaa_rx_queue_init(struct qman_fq *fq, uint32_t fqid) @@ -558,6 +667,9 @@ dpaa_dev_init(struct rte_eth_dev *eth_dev) DPAA_PMD_DEBUG("All frame queues created"); + /* Get the initial configuration for flow control */ + dpaa_fc_set_default(dpaa_intf); + /* reset bpool list, initialize bpool dynamically */ list_for_each_entry_safe(bp, tmp_bp, &cfg->fman_if->bpool_list, node) { list_del(&bp->node); @@ -663,6 +775,10 @@ dpaa_dev_uninit(struct rte_eth_dev *dev) dpaa_eth_dev_close(dev); + /* release configuration memory */ + if (dpaa_intf->fc_conf) + rte_free(dpaa_intf->fc_conf); + /* free the all queue memory */ for (i = 0; i < dpaa_intf->nb_rx_queues; i++) teardown_fq(&dpaa_intf->rx_queues[i]);