From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 70B82A00C5; Thu, 30 Dec 2021 07:12:09 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id DE1B54270B; Thu, 30 Dec 2021 07:10:07 +0100 (CET) Received: from VLXDG1SPAM1.ramaxel.com (email.ramaxel.com [221.4.138.186]) by mails.dpdk.org (Postfix) with ESMTP id E959041C26 for ; Thu, 30 Dec 2021 07:10:03 +0100 (CET) Received: from V12DG1MBS01.ramaxel.local (v12dg1mbs01.ramaxel.local [172.26.18.31]) by VLXDG1SPAM1.ramaxel.com with ESMTPS id 1BU69DWn040086 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 30 Dec 2021 14:09:15 +0800 (GMT-8) (envelope-from songyl@ramaxel.com) Received: from localhost.localdomain (10.64.9.47) by V12DG1MBS01.ramaxel.local (172.26.18.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Thu, 30 Dec 2021 14:09:14 +0800 From: Yanling Song To: CC: , , , , , , Subject: [PATCH v6 23/26] net/spnic: support VFIO interrupt Date: Thu, 30 Dec 2021 14:09:01 +0800 Message-ID: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.64.9.47] X-ClientProxiedBy: V12DG1MBS03.ramaxel.local (172.26.18.33) To V12DG1MBS01.ramaxel.local (172.26.18.31) X-DNSRBL: X-MAIL: VLXDG1SPAM1.ramaxel.com 1BU69DWn040086 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This commit supports VFIO interrupt for Rx queue and asynchronous event, and implements rx_queue_intr_disable() and rx_queue_intr_enable() to disable/enable the interrupt of specified Rx queue. Signed-off-by: Yanling Song --- drivers/net/spnic/base/spnic_eqs.c | 11 ++ drivers/net/spnic/spnic_ethdev.c | 218 ++++++++++++++++++++++++++++- drivers/net/spnic/spnic_ethdev.h | 3 + drivers/net/spnic/spnic_rx.c | 2 + 4 files changed, 233 insertions(+), 1 deletion(-) diff --git a/drivers/net/spnic/base/spnic_eqs.c b/drivers/net/spnic/base/spnic_eqs.c index ee52252ecc..513d0329ed 100644 --- a/drivers/net/spnic/base/spnic_eqs.c +++ b/drivers/net/spnic/base/spnic_eqs.c @@ -12,6 +12,7 @@ #include "spnic_eqs.h" #include "spnic_mgmt.h" #include "spnic_mbox.h" +#include "spnic_hw_comm.h" #include "spnic_nic_event.h" #define AEQ_CTRL_0_INTR_IDX_SHIFT 0 @@ -648,3 +649,13 @@ int spnic_aeq_poll_msg(struct spnic_eq *eq, u32 timeout, void *param) return err; } + +void spnic_dev_handle_aeq_event(struct spnic_hwdev *hwdev, void *param) +{ + struct spnic_eq *aeq = &hwdev->aeqs->aeq[0]; + + /* Clear resend timer cnt register */ + spnic_misx_intr_clear_resend_bit(hwdev, aeq->eq_irq.msix_entry_idx, + EQ_MSIX_RESEND_TIMER_CLEAR); + (void)spnic_aeq_poll_msg(aeq, 0, param); +} diff --git a/drivers/net/spnic/spnic_ethdev.c b/drivers/net/spnic/spnic_ethdev.c index 0565a7876e..d6aab64a57 100644 --- a/drivers/net/spnic/spnic_ethdev.c +++ b/drivers/net/spnic/spnic_ethdev.c @@ -248,6 +248,28 @@ static const struct rte_eth_desc_lim spnic_tx_desc_lim = { .nb_align = SPNIC_TXD_ALIGN, }; +/** + * Interrupt handler triggered by NIC for handling specific event + * + * @param[in] param + * The address of parameter (struct rte_eth_dev *) registered before + */ +static void spnic_dev_interrupt_handler(void *param) +{ + struct rte_eth_dev *dev = param; + struct spnic_nic_dev *nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev); + + if (!rte_bit_relaxed_get32(SPNIC_DEV_INTR_EN, &nic_dev->dev_status)) { + PMD_DRV_LOG(WARNING, + "Intr is disabled, ignore intr event, dev_name: %s, port_id: %d", + nic_dev->dev_name, dev->data->port_id); + return; + } + + /* Aeq0 msg handler */ + spnic_dev_handle_aeq_event(nic_dev->hwdev, param); +} + /** * Ethernet device configuration. * @@ -952,6 +974,46 @@ static void spnic_deinit_mac_addr(struct rte_eth_dev *eth_dev) spnic_delete_mc_addr_list(nic_dev); } +int spnic_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, + uint16_t queue_id) +{ + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); + struct rte_intr_handle *intr_handle = pci_dev->intr_handle; + struct spnic_nic_dev *nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev); + u16 msix_intr; + + if (!rte_intr_dp_is_en(intr_handle)) + return 0; + + if (queue_id >= dev->data->nb_rx_queues) + return -EINVAL; + + msix_intr = (u16)(queue_id + RTE_INTR_VEC_RXTX_OFFSET); + spnic_set_msix_state(nic_dev->hwdev, msix_intr, SPNIC_MSIX_ENABLE); + + return 0; +} + +int spnic_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id) +{ + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); + struct rte_intr_handle *intr_handle = pci_dev->intr_handle; + struct spnic_nic_dev *nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev); + u16 msix_intr; + + if (!rte_intr_dp_is_en(intr_handle)) + return 0; + + if (queue_id >= dev->data->nb_rx_queues) + return -EINVAL; + + msix_intr = (u16)(queue_id + RTE_INTR_VEC_RXTX_OFFSET); + spnic_set_msix_state(nic_dev->hwdev, msix_intr, SPNIC_MSIX_DISABLE); + spnic_misx_intr_clear_resend_bit(nic_dev->hwdev, msix_intr, 1); + + return 0; +} + static int spnic_set_rxtx_configure(struct rte_eth_dev *dev) { struct spnic_nic_dev *nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev); @@ -1085,6 +1147,108 @@ static void spnic_remove_all_vlanid(struct rte_eth_dev *dev) } } +static void spnic_disable_interrupt(struct rte_eth_dev *dev) +{ + struct spnic_nic_dev *nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev); + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); + + if (!rte_bit_relaxed_get32(SPNIC_DEV_INIT, &nic_dev->dev_status)) + return; + + /* disable rte interrupt */ + rte_intr_disable(pci_dev->intr_handle); + rte_intr_callback_unregister(pci_dev->intr_handle, + spnic_dev_interrupt_handler, (void *)dev); +} + +static void spnic_enable_interrupt(struct rte_eth_dev *dev) +{ + struct spnic_nic_dev *nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev); + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); + + if (!rte_bit_relaxed_get32(SPNIC_DEV_INIT, &nic_dev->dev_status)) + return; + + /* enable rte interrupt */ + rte_intr_enable(pci_dev->intr_handle); + rte_intr_callback_register(pci_dev->intr_handle, + spnic_dev_interrupt_handler, (void *)dev); +} +#define SPNIC_TXRX_MSIX_PENDING_LIMIT 2 +#define SPNIC_TXRX_MSIX_COALESC_TIMER 2 +#define SPNIC_TXRX_MSIX_RESEND_TIMER_CFG 7 + +static int spnic_init_rxq_msix_attr(void *hwdev, u16 msix_index) +{ + struct interrupt_info info = { 0 }; + int err; + + info.lli_set = 0; + info.interrupt_coalesc_set = 1; + info.pending_limt = SPNIC_TXRX_MSIX_PENDING_LIMIT; + info.coalesc_timer_cfg = SPNIC_TXRX_MSIX_COALESC_TIMER; + info.resend_timer_cfg = SPNIC_TXRX_MSIX_RESEND_TIMER_CFG; + + info.msix_index = msix_index; + err = spnic_set_interrupt_cfg(hwdev, info); + if (err) { + PMD_DRV_LOG(ERR, "Set msix attr failed, msix_index %d\n", + msix_index); + return -EFAULT; + } + + return 0; +} + +static void spnic_deinit_rxq_intr(struct rte_eth_dev *dev) +{ + struct rte_intr_handle *intr_handle = dev->intr_handle; + + rte_intr_efd_disable(intr_handle); +} + +static int spnic_init_rxq_intr(struct rte_eth_dev *dev) +{ + struct rte_intr_handle *intr_handle = NULL; + struct spnic_nic_dev *nic_dev = NULL; + struct spnic_rxq *rxq = NULL; + u32 nb_rx_queues, i; + int err; + + intr_handle = dev->intr_handle; + nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev); + if (!dev->data->dev_conf.intr_conf.rxq) + return 0; + + if (!rte_intr_cap_multiple(intr_handle)) { + PMD_DRV_LOG(ERR, "Rx queue interrupts require MSI-X interrupts" + " (vfio-pci driver)\n"); + return -ENOTSUP; + } + + nb_rx_queues = dev->data->nb_rx_queues; + err = rte_intr_efd_enable(intr_handle, nb_rx_queues); + if (err) { + PMD_DRV_LOG(ERR, "Failed to enable event fds for Rx queue interrupts\n"); + return err; + } + + for (i = 0; i < nb_rx_queues; i++) { + rxq = dev->data->rx_queues[i]; + rxq->dp_intr_en = 1; + rxq->msix_entry_idx = (u16)(i + RTE_INTR_VEC_RXTX_OFFSET); + + err = spnic_init_rxq_msix_attr(nic_dev->hwdev, + rxq->msix_entry_idx); + if (err) { + spnic_deinit_rxq_intr(dev); + return err; + } + } + + return 0; +} + static int spnic_init_sw_rxtxqs(struct spnic_nic_dev *nic_dev) { u32 txq_size; @@ -1146,6 +1310,14 @@ static int spnic_dev_start(struct rte_eth_dev *eth_dev) nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(eth_dev); + spnic_disable_interrupt(eth_dev); + err = spnic_init_rxq_intr(eth_dev); + if (err) { + PMD_DRV_LOG(ERR, "Init rxq intr fail, eth_dev:%s", + eth_dev->data->name); + goto init_rxq_intr_fail; + } + spnic_get_func_rx_buf_size(nic_dev); err = spnic_init_function_table(nic_dev->hwdev, nic_dev->rx_buff_len); if (err) { @@ -1193,6 +1365,9 @@ static int spnic_dev_start(struct rte_eth_dev *eth_dev) goto set_rxtx_config_fail; } + /* enable dev interrupt */ + spnic_enable_interrupt(eth_dev); + err = spnic_start_all_rqs(eth_dev); if (err) { PMD_DRV_LOG(ERR, "Set rx config failed, dev_name: %s", @@ -1237,6 +1412,7 @@ static int spnic_dev_start(struct rte_eth_dev *eth_dev) rxq = nic_dev->rxqs[i]; spnic_remove_rq_from_rx_queue_list(nic_dev, rxq->q_id); spnic_free_rxq_mbufs(rxq); + spnic_dev_rx_queue_intr_disable(eth_dev, rxq->q_id); eth_dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; eth_dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; } @@ -1250,6 +1426,7 @@ static int spnic_dev_start(struct rte_eth_dev *eth_dev) init_qp_fail: get_feature_err: init_func_tbl_fail: +init_rxq_intr_fail: return err; } @@ -1355,7 +1532,8 @@ static int spnic_dev_close(struct rte_eth_dev *eth_dev) { struct spnic_nic_dev *nic_dev = SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(eth_dev); - int qid; + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev); + int qid, ret; if (rte_bit_relaxed_test_and_set32(SPNIC_DEV_CLOSE, &nic_dev->dev_status)) { PMD_DRV_LOG(WARNING, "Device %s already closed", @@ -1379,6 +1557,15 @@ static int spnic_dev_close(struct rte_eth_dev *eth_dev) spnic_remove_all_vlanid(eth_dev); rte_bit_relaxed_clear32(SPNIC_DEV_INTR_EN, &nic_dev->dev_status); + spnic_set_msix_state(nic_dev->hwdev, 0, SPNIC_MSIX_DISABLE); + ret = rte_intr_disable(pci_dev->intr_handle); + if (ret) + PMD_DRV_LOG(ERR, "Device %s disable intr failed: %d", + nic_dev->dev_name, ret); + + (void)rte_intr_callback_unregister(pci_dev->intr_handle, + spnic_dev_interrupt_handler, + (void *)eth_dev); /* Destroy rx mode mutex */ spnic_mutex_destroy(&nic_dev->rx_mode_mutex); @@ -2511,6 +2698,8 @@ static const struct eth_dev_ops spnic_pmd_ops = { .tx_queue_setup = spnic_tx_queue_setup, .rx_queue_release = spnic_rx_queue_release, .tx_queue_release = spnic_tx_queue_release, + .rx_queue_intr_enable = spnic_dev_rx_queue_intr_enable, + .rx_queue_intr_disable = spnic_dev_rx_queue_intr_disable, .dev_start = spnic_dev_start, .dev_stop = spnic_dev_stop, .dev_close = spnic_dev_close, @@ -2546,6 +2735,8 @@ static const struct eth_dev_ops spnic_pmd_vf_ops = { .fw_version_get = spnic_fw_version_get, .rx_queue_setup = spnic_rx_queue_setup, .tx_queue_setup = spnic_tx_queue_setup, + .rx_queue_intr_enable = spnic_dev_rx_queue_intr_enable, + .rx_queue_intr_disable = spnic_dev_rx_queue_intr_disable, .dev_start = spnic_dev_start, .link_update = spnic_link_update, .rx_queue_release = spnic_rx_queue_release, @@ -2800,6 +2991,24 @@ static int spnic_func_init(struct rte_eth_dev *eth_dev) goto init_mpool_fail; } + /* Register callback func to eal lib */ + err = rte_intr_callback_register(pci_dev->intr_handle, + spnic_dev_interrupt_handler, + (void *)eth_dev); + if (err) { + PMD_DRV_LOG(ERR, "Register intr callback failed, dev_name: %s", + eth_dev->data->name); + goto reg_intr_cb_fail; + } + + /* Enable uio/vfio intr/eventfd mapping */ + err = rte_intr_enable(pci_dev->intr_handle); + if (err) { + PMD_DRV_LOG(ERR, "Enable rte interrupt failed, dev_name: %s", + eth_dev->data->name); + goto enable_intr_fail; + } + spnic_mutex_init(&nic_dev->rx_mode_mutex, NULL); rte_bit_relaxed_set32(SPNIC_DEV_INTR_EN, &nic_dev->dev_status); @@ -2810,6 +3019,13 @@ static int spnic_func_init(struct rte_eth_dev *eth_dev) return 0; +enable_intr_fail: + (void)rte_intr_callback_unregister(pci_dev->intr_handle, + spnic_dev_interrupt_handler, + (void *)eth_dev); + +reg_intr_cb_fail: + spnic_copy_mempool_uninit(nic_dev); init_mpool_fail: set_default_feature_fail: spnic_deinit_mac_addr(eth_dev); diff --git a/drivers/net/spnic/spnic_ethdev.h b/drivers/net/spnic/spnic_ethdev.h index be429945ac..fdd0e87e62 100644 --- a/drivers/net/spnic/spnic_ethdev.h +++ b/drivers/net/spnic/spnic_ethdev.h @@ -89,4 +89,7 @@ struct spnic_nic_dev { #define SPNIC_ETH_DEV_TO_PRIVATE_NIC_DEV(dev) \ ((struct spnic_nic_dev *)(dev)->data->dev_private) +int spnic_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id); +int spnic_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, + uint16_t queue_id); #endif /* _SPNIC_ETHDEV_H_ */ diff --git a/drivers/net/spnic/spnic_rx.c b/drivers/net/spnic/spnic_rx.c index 819cbb2e0a..a835f8066a 100644 --- a/drivers/net/spnic/spnic_rx.c +++ b/drivers/net/spnic/spnic_rx.c @@ -591,6 +591,7 @@ int spnic_start_all_rqs(struct rte_eth_dev *eth_dev) rxq = eth_dev->data->rx_queues[i]; spnic_add_rq_to_rx_queue_list(nic_dev, rxq->q_id); spnic_rearm_rxq_mbuf(rxq); + spnic_dev_rx_queue_intr_enable(eth_dev, rxq->q_id); eth_dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED; } @@ -609,6 +610,7 @@ int spnic_start_all_rqs(struct rte_eth_dev *eth_dev) rxq = eth_dev->data->rx_queues[i]; spnic_remove_rq_from_rx_queue_list(nic_dev, rxq->q_id); spnic_free_rxq_mbufs(rxq); + spnic_dev_rx_queue_intr_disable(eth_dev, rxq->q_id); eth_dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; } return err; -- 2.32.0