From 803e4bb14debc0f8338424b41ba32ad983858901 Mon Sep 17 00:00:00 2001 From: Jiawen Wu Date: Thu, 25 Feb 2021 16:08:45 +0800 Subject: [PATCH] net/txgbe: support VF probe and remove Introduce virtual function driver in txgbe PMD, add simple init and uninit function to probe and remove the device. Signed-off-by: Jiawen Wu --- doc/guides/nics/features/txgbe_vf.ini | 11 +++ doc/guides/rel_notes/release_21_05.rst | 4 + drivers/net/txgbe/meson.build | 1 + drivers/net/txgbe/txgbe_ethdev_vf.c | 132 +++++++++++++++++++++++++ 4 files changed, 148 insertions(+) create mode 100644 doc/guides/nics/features/txgbe_vf.ini create mode 100644 drivers/net/txgbe/txgbe_ethdev_vf.c diff --git a/doc/guides/nics/features/txgbe_vf.ini b/doc/guides/nics/features/txgbe_vf.ini new file mode 100644 index 0000000000..5035c5eeaf --- /dev/null +++ b/doc/guides/nics/features/txgbe_vf.ini @@ -0,0 +1,11 @@ +; +; Supported features of the 'txgbe_vf' network poll mode driver. +; +; Refer to default.ini for the full list of available PMD features. +; +[Features] +Multiprocess aware = Y +Linux = Y +ARMv8 = Y +x86-32 = Y +x86-64 = Y diff --git a/doc/guides/rel_notes/release_21_05.rst b/doc/guides/rel_notes/release_21_05.rst index 2d7cedacd1..ca28d05d59 100644 --- a/doc/guides/rel_notes/release_21_05.rst +++ b/doc/guides/rel_notes/release_21_05.rst @@ -55,6 +55,10 @@ New Features Also, make sure to start the actual text at the margin. ======================================================= +* **Updated Wangxun txgbe driver.** + + * Added support for txgbevf PMD. + * **Updated testpmd.** * Added command to display Rx queue used descriptor count. diff --git a/drivers/net/txgbe/meson.build b/drivers/net/txgbe/meson.build index 60505e2116..3b9994aa97 100644 --- a/drivers/net/txgbe/meson.build +++ b/drivers/net/txgbe/meson.build @@ -12,6 +12,7 @@ objs = [base_objs] sources = files( 'txgbe_ethdev.c', + 'txgbe_ethdev_vf.c', 'txgbe_fdir.c', 'txgbe_flow.c', 'txgbe_ipsec.c', diff --git a/drivers/net/txgbe/txgbe_ethdev_vf.c b/drivers/net/txgbe/txgbe_ethdev_vf.c new file mode 100644 index 0000000000..1c3765e4e4 --- /dev/null +++ b/drivers/net/txgbe/txgbe_ethdev_vf.c @@ -0,0 +1,132 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2015-2020 + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "base/txgbe.h" +#include "txgbe_ethdev.h" +#include "txgbe_rxtx.h" + +static int txgbevf_dev_close(struct rte_eth_dev *dev); + +/* + * The set of PCI devices this driver supports (for VF) + */ +static const struct rte_pci_id pci_id_txgbevf_map[] = { + { RTE_PCI_DEVICE(PCI_VENDOR_ID_WANGXUN, TXGBE_DEV_ID_RAPTOR_VF) }, + { RTE_PCI_DEVICE(PCI_VENDOR_ID_WANGXUN, TXGBE_DEV_ID_RAPTOR_VF_HV) }, + { .vendor_id = 0, /* sentinel */ }, +}; + +static const struct eth_dev_ops txgbevf_eth_dev_ops; + +/* + * Virtual Function device init + */ +static int +eth_txgbevf_dev_init(struct rte_eth_dev *eth_dev) +{ + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev); + struct txgbe_hw *hw = TXGBE_DEV_HW(eth_dev); + PMD_INIT_FUNC_TRACE(); + + eth_dev->dev_ops = &txgbevf_eth_dev_ops; + + /* for secondary processes, we don't initialise any further as primary + * has already done this work. Only check we don't need a different + * RX function + */ + if (rte_eal_process_type() != RTE_PROC_PRIMARY) { + struct txgbe_tx_queue *txq; + uint16_t nb_tx_queues = eth_dev->data->nb_tx_queues; + /* TX queue function in primary, set by last queue initialized + * Tx queue may not initialized by primary process + */ + if (eth_dev->data->tx_queues) { + txq = eth_dev->data->tx_queues[nb_tx_queues - 1]; + txgbe_set_tx_function(eth_dev, txq); + } else { + /* Use default TX function if we get here */ + PMD_INIT_LOG(NOTICE, + "No TX queues configured yet. Using default TX function."); + } + + txgbe_set_rx_function(eth_dev); + + return 0; + } + + rte_eth_copy_pci_info(eth_dev, pci_dev); + + hw->device_id = pci_dev->id.device_id; + hw->vendor_id = pci_dev->id.vendor_id; + hw->subsystem_device_id = pci_dev->id.subsystem_device_id; + hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id; + hw->hw_addr = (void *)pci_dev->mem_resource[0].addr; + + return 0; +} + +/* Virtual Function device uninit */ +static int +eth_txgbevf_dev_uninit(struct rte_eth_dev *eth_dev) +{ + PMD_INIT_FUNC_TRACE(); + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return 0; + + txgbevf_dev_close(eth_dev); + + return 0; +} + +static int eth_txgbevf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, + struct rte_pci_device *pci_dev) +{ + return rte_eth_dev_pci_generic_probe(pci_dev, + sizeof(struct txgbe_adapter), eth_txgbevf_dev_init); +} + +static int eth_txgbevf_pci_remove(struct rte_pci_device *pci_dev) +{ + return rte_eth_dev_pci_generic_remove(pci_dev, eth_txgbevf_dev_uninit); +} + +/* + * virtual function driver struct + */ +static struct rte_pci_driver rte_txgbevf_pmd = { + .id_table = pci_id_txgbevf_map, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING, + .probe = eth_txgbevf_pci_probe, + .remove = eth_txgbevf_pci_remove, +}; + +static int +txgbevf_dev_close(struct rte_eth_dev *dev) +{ + PMD_INIT_FUNC_TRACE(); + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return 0; + + return 0; +} + +/* + * dev_ops for virtual function, bare necessities for basic vf + * operation have been implemented + */ +static const struct eth_dev_ops txgbevf_eth_dev_ops = { +}; + +RTE_PMD_REGISTER_PCI(net_txgbe_vf, rte_txgbevf_pmd); +RTE_PMD_REGISTER_PCI_TABLE(net_txgbe_vf, pci_id_txgbevf_map); +RTE_PMD_REGISTER_KMOD_DEP(net_txgbe_vf, "* igb_uio | vfio-pci"); -- 2.20.1