803e4bb14d
Introduce virtual function driver in txgbe PMD, add simple init and uninit function to probe and remove the device. Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2015-2020
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*/
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#include <sys/queue.h>
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#include <stdio.h>
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#include <errno.h>
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#include <stdint.h>
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#include <string.h>
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#include <rte_log.h>
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#include <ethdev_pci.h>
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#include "base/txgbe.h"
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#include "txgbe_ethdev.h"
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#include "txgbe_rxtx.h"
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static int txgbevf_dev_close(struct rte_eth_dev *dev);
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/*
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* The set of PCI devices this driver supports (for VF)
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*/
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static const struct rte_pci_id pci_id_txgbevf_map[] = {
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{ RTE_PCI_DEVICE(PCI_VENDOR_ID_WANGXUN, TXGBE_DEV_ID_RAPTOR_VF) },
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{ RTE_PCI_DEVICE(PCI_VENDOR_ID_WANGXUN, TXGBE_DEV_ID_RAPTOR_VF_HV) },
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{ .vendor_id = 0, /* sentinel */ },
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};
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static const struct eth_dev_ops txgbevf_eth_dev_ops;
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/*
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* Virtual Function device init
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*/
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static int
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eth_txgbevf_dev_init(struct rte_eth_dev *eth_dev)
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{
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struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
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struct txgbe_hw *hw = TXGBE_DEV_HW(eth_dev);
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PMD_INIT_FUNC_TRACE();
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eth_dev->dev_ops = &txgbevf_eth_dev_ops;
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/* for secondary processes, we don't initialise any further as primary
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* has already done this work. Only check we don't need a different
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* RX function
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*/
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if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
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struct txgbe_tx_queue *txq;
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uint16_t nb_tx_queues = eth_dev->data->nb_tx_queues;
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/* TX queue function in primary, set by last queue initialized
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* Tx queue may not initialized by primary process
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*/
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if (eth_dev->data->tx_queues) {
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txq = eth_dev->data->tx_queues[nb_tx_queues - 1];
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txgbe_set_tx_function(eth_dev, txq);
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} else {
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/* Use default TX function if we get here */
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PMD_INIT_LOG(NOTICE,
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"No TX queues configured yet. Using default TX function.");
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}
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txgbe_set_rx_function(eth_dev);
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return 0;
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}
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rte_eth_copy_pci_info(eth_dev, pci_dev);
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hw->device_id = pci_dev->id.device_id;
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hw->vendor_id = pci_dev->id.vendor_id;
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hw->subsystem_device_id = pci_dev->id.subsystem_device_id;
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hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
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hw->hw_addr = (void *)pci_dev->mem_resource[0].addr;
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return 0;
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}
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/* Virtual Function device uninit */
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static int
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eth_txgbevf_dev_uninit(struct rte_eth_dev *eth_dev)
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{
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PMD_INIT_FUNC_TRACE();
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if (rte_eal_process_type() != RTE_PROC_PRIMARY)
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return 0;
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txgbevf_dev_close(eth_dev);
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return 0;
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}
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static int eth_txgbevf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
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struct rte_pci_device *pci_dev)
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{
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return rte_eth_dev_pci_generic_probe(pci_dev,
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sizeof(struct txgbe_adapter), eth_txgbevf_dev_init);
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}
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static int eth_txgbevf_pci_remove(struct rte_pci_device *pci_dev)
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{
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return rte_eth_dev_pci_generic_remove(pci_dev, eth_txgbevf_dev_uninit);
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}
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/*
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* virtual function driver struct
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*/
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static struct rte_pci_driver rte_txgbevf_pmd = {
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.id_table = pci_id_txgbevf_map,
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.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
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.probe = eth_txgbevf_pci_probe,
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.remove = eth_txgbevf_pci_remove,
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};
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static int
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txgbevf_dev_close(struct rte_eth_dev *dev)
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{
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PMD_INIT_FUNC_TRACE();
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if (rte_eal_process_type() != RTE_PROC_PRIMARY)
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return 0;
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return 0;
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}
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/*
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* dev_ops for virtual function, bare necessities for basic vf
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* operation have been implemented
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*/
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static const struct eth_dev_ops txgbevf_eth_dev_ops = {
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};
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RTE_PMD_REGISTER_PCI(net_txgbe_vf, rte_txgbevf_pmd);
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RTE_PMD_REGISTER_PCI_TABLE(net_txgbe_vf, pci_id_txgbevf_map);
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RTE_PMD_REGISTER_KMOD_DEP(net_txgbe_vf, "* igb_uio | vfio-pci");
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