From 36a7a2e7a53fd269725429eec2d2354d8ca17f3e Mon Sep 17 00:00:00 2001 From: Maxime Coquelin Date: Tue, 26 Jan 2021 11:16:02 +0100 Subject: [PATCH] net/virtio: move PCI device init in dedicated file This patch moves the PCI Ethernet device registration bits in a dedicated patch. In following patches, more code will be moved there, with the goal of making virtio_ethdev.c truly bus-agnostic. Signed-off-by: Maxime Coquelin Reviewed-by: Chenbo Xia --- drivers/net/virtio/meson.build | 1 + drivers/net/virtio/virtio_ethdev.c | 117 +------------------ drivers/net/virtio/virtio_ethdev.h | 2 + drivers/net/virtio/virtio_pci_ethdev.c | 149 +++++++++++++++++++++++++ 4 files changed, 157 insertions(+), 112 deletions(-) create mode 100644 drivers/net/virtio/virtio_pci_ethdev.c diff --git a/drivers/net/virtio/meson.build b/drivers/net/virtio/meson.build index 0e78d1243b..07e085376b 100644 --- a/drivers/net/virtio/meson.build +++ b/drivers/net/virtio/meson.build @@ -8,6 +8,7 @@ if is_windows endif sources += files('virtio_ethdev.c', + 'virtio_pci_ethdev.c', 'virtio_pci.c', 'virtio_rxtx.c', 'virtio_rxtx_simple.c', diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 5bbff2790f..21f49e3300 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -38,17 +38,14 @@ #include "virtio_rxtx.h" #include "virtio_user/virtio_user_dev.h" -static int eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev); static int virtio_dev_configure(struct rte_eth_dev *dev); static int virtio_dev_start(struct rte_eth_dev *dev); -static int virtio_dev_stop(struct rte_eth_dev *dev); static int virtio_dev_promiscuous_enable(struct rte_eth_dev *dev); static int virtio_dev_promiscuous_disable(struct rte_eth_dev *dev); static int virtio_dev_allmulticast_enable(struct rte_eth_dev *dev); static int virtio_dev_allmulticast_disable(struct rte_eth_dev *dev); static uint32_t virtio_dev_speed_capa_get(uint32_t speed); static int virtio_dev_devargs_parse(struct rte_devargs *devargs, - int *vdpa, uint32_t *speed, int *vectorized); static int virtio_dev_info_get(struct rte_eth_dev *dev, @@ -89,15 +86,6 @@ static int virtio_dev_queue_stats_mapping_set( static void virtio_notify_peers(struct rte_eth_dev *dev); static void virtio_ack_link_announce(struct rte_eth_dev *dev); -/* - * The set of PCI devices this driver supports - */ -static const struct rte_pci_id pci_id_virtio_map[] = { - { RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_LEGACY_DEVICEID_NET) }, - { RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_MODERN_DEVICEID_NET) }, - { .vendor_id = 0, /* sentinel */ }, -}; - struct rte_virtio_xstats_name_off { char name[RTE_ETH_XSTATS_NAME_SIZE]; unsigned offset; @@ -714,7 +702,7 @@ virtio_alloc_queues(struct rte_eth_dev *dev) static void virtio_queues_unbind_intr(struct rte_eth_dev *dev); -static int +int virtio_dev_close(struct rte_eth_dev *dev) { struct virtio_hw *hw = dev->data->dev_private; @@ -1932,8 +1920,7 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev) return 0; } - ret = virtio_dev_devargs_parse(eth_dev->device->devargs, - NULL, &speed, &vectorized); + ret = virtio_dev_devargs_parse(eth_dev->device->devargs, &speed, &vectorized); if (ret < 0) return ret; hw->speed = speed; @@ -1995,36 +1982,6 @@ err_vtpci_init: return ret; } -static int -eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev) -{ - int ret; - PMD_INIT_FUNC_TRACE(); - - if (rte_eal_process_type() == RTE_PROC_SECONDARY) - return 0; - - ret = virtio_dev_stop(eth_dev); - virtio_dev_close(eth_dev); - - PMD_INIT_LOG(DEBUG, "dev_uninit completed"); - - return ret; -} - - -static int vdpa_check_handler(__rte_unused const char *key, - const char *value, void *ret_val) -{ - if (strcmp(value, "1") == 0) - *(int *)ret_val = 1; - else - *(int *)ret_val = 0; - - return 0; -} - - static uint32_t virtio_dev_speed_capa_get(uint32_t speed) { @@ -2062,10 +2019,8 @@ static int vectorized_check_handler(__rte_unused const char *key, } #define VIRTIO_ARG_SPEED "speed" -#define VIRTIO_ARG_VDPA "vdpa" #define VIRTIO_ARG_VECTORIZED "vectorized" - static int link_speed_handler(const char *key __rte_unused, const char *value, void *ret_val) @@ -2084,8 +2039,7 @@ link_speed_handler(const char *key __rte_unused, static int -virtio_dev_devargs_parse(struct rte_devargs *devargs, int *vdpa, - uint32_t *speed, int *vectorized) +virtio_dev_devargs_parse(struct rte_devargs *devargs, uint32_t *speed, int *vectorized) { struct rte_kvargs *kvlist; int ret = 0; @@ -2098,18 +2052,7 @@ virtio_dev_devargs_parse(struct rte_devargs *devargs, int *vdpa, PMD_INIT_LOG(ERR, "error when parsing param"); return 0; } - if (vdpa && rte_kvargs_count(kvlist, VIRTIO_ARG_VDPA) == 1) { - /* vdpa mode selected when there's a key-value pair: - * vdpa=1 - */ - ret = rte_kvargs_process(kvlist, VIRTIO_ARG_VDPA, - vdpa_check_handler, vdpa); - if (ret < 0) { - PMD_INIT_LOG(ERR, "Failed to parse %s", - VIRTIO_ARG_VDPA); - goto exit; - } - } + if (speed && rte_kvargs_count(kvlist, VIRTIO_ARG_SPEED) == 1) { ret = rte_kvargs_process(kvlist, VIRTIO_ARG_SPEED, @@ -2138,53 +2081,6 @@ exit: return ret; } -static int eth_virtio_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, - struct rte_pci_device *pci_dev) -{ - int vdpa = 0; - int ret = 0; - - ret = virtio_dev_devargs_parse(pci_dev->device.devargs, &vdpa, NULL, - NULL); - if (ret < 0) { - PMD_INIT_LOG(ERR, "devargs parsing is failed"); - return ret; - } - /* virtio pmd skips probe if device needs to work in vdpa mode */ - if (vdpa == 1) - return 1; - - return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct virtio_pci_dev), - eth_virtio_dev_init); -} - -static int eth_virtio_pci_remove(struct rte_pci_device *pci_dev) -{ - int ret; - - ret = rte_eth_dev_pci_generic_remove(pci_dev, eth_virtio_dev_uninit); - /* Port has already been released by close. */ - if (ret == -ENODEV) - ret = 0; - return ret; -} - -static struct rte_pci_driver rte_virtio_pmd = { - .driver = { - .name = "net_virtio", - }, - .id_table = pci_id_virtio_map, - .drv_flags = 0, - .probe = eth_virtio_pci_probe, - .remove = eth_virtio_pci_remove, -}; - -RTE_INIT(rte_virtio_pmd_init) -{ - rte_eal_iopl_init(); - rte_pci_register(&rte_virtio_pmd); -} - static bool rx_offload_enabled(struct virtio_hw *hw) { @@ -2535,7 +2431,7 @@ static void virtio_dev_free_mbufs(struct rte_eth_dev *dev) /* * Stop device: disable interrupt and mark link down */ -static int +int virtio_dev_stop(struct rte_eth_dev *dev) { struct virtio_hw *hw = dev->data->dev_private; @@ -2686,8 +2582,5 @@ __rte_unused uint8_t is_rx) return 0; } -RTE_PMD_EXPORT_NAME(net_virtio, __COUNTER__); -RTE_PMD_REGISTER_PCI_TABLE(net_virtio, pci_id_virtio_map); -RTE_PMD_REGISTER_KMOD_DEP(net_virtio, "* igb_uio | uio_pci_generic | vfio-pci"); RTE_LOG_REGISTER(virtio_logtype_init, pmd.net.virtio.init, NOTICE); RTE_LOG_REGISTER(virtio_logtype_driver, pmd.net.virtio.driver, NOTICE); diff --git a/drivers/net/virtio/virtio_ethdev.h b/drivers/net/virtio/virtio_ethdev.h index b7d52d497f..13395937c8 100644 --- a/drivers/net/virtio/virtio_ethdev.h +++ b/drivers/net/virtio/virtio_ethdev.h @@ -117,6 +117,8 @@ void virtio_interrupt_handler(void *param); int virtio_dev_pause(struct rte_eth_dev *dev); void virtio_dev_resume(struct rte_eth_dev *dev); +int virtio_dev_stop(struct rte_eth_dev *dev); +int virtio_dev_close(struct rte_eth_dev *dev); int virtio_inject_pkts(struct rte_eth_dev *dev, struct rte_mbuf **tx_pkts, int nb_pkts); diff --git a/drivers/net/virtio/virtio_pci_ethdev.c b/drivers/net/virtio/virtio_pci_ethdev.c new file mode 100644 index 0000000000..6427e57290 --- /dev/null +++ b/drivers/net/virtio/virtio_pci_ethdev.c @@ -0,0 +1,149 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2016 Intel Corporation + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "virtio_ethdev.h" +#include "virtio_pci.h" +#include "virtio_logs.h" + +/* + * The set of PCI devices this driver supports + */ +static const struct rte_pci_id pci_id_virtio_map[] = { + { RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_LEGACY_DEVICEID_NET) }, + { RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_MODERN_DEVICEID_NET) }, + { .vendor_id = 0, /* sentinel */ }, +}; + +static int +eth_virtio_pci_init(struct rte_eth_dev *eth_dev) +{ + return eth_virtio_dev_init(eth_dev); +} + +static int +eth_virtio_pci_uninit(struct rte_eth_dev *eth_dev) +{ + int ret; + PMD_INIT_FUNC_TRACE(); + + if (rte_eal_process_type() == RTE_PROC_SECONDARY) + return 0; + + ret = virtio_dev_stop(eth_dev); + virtio_dev_close(eth_dev); + + PMD_INIT_LOG(DEBUG, "dev_uninit completed"); + + return ret; +} + +static int vdpa_check_handler(__rte_unused const char *key, + const char *value, void *ret_val) +{ + if (strcmp(value, "1") == 0) + *(int *)ret_val = 1; + else + *(int *)ret_val = 0; + + return 0; +} + +#define VIRTIO_ARG_VDPA "vdpa" + +static int +virtio_pci_devargs_parse(struct rte_devargs *devargs, int *vdpa) +{ + struct rte_kvargs *kvlist; + int ret = 0; + + if (devargs == NULL) + return 0; + + kvlist = rte_kvargs_parse(devargs->args, NULL); + if (kvlist == NULL) { + PMD_INIT_LOG(ERR, "error when parsing param"); + return 0; + } + + if (rte_kvargs_count(kvlist, VIRTIO_ARG_VDPA) == 1) { + /* vdpa mode selected when there's a key-value pair: + * vdpa=1 + */ + ret = rte_kvargs_process(kvlist, VIRTIO_ARG_VDPA, + vdpa_check_handler, vdpa); + if (ret < 0) + PMD_INIT_LOG(ERR, "Failed to parse %s", VIRTIO_ARG_VDPA); + } + + rte_kvargs_free(kvlist); + + return ret; +} + +static int eth_virtio_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, + struct rte_pci_device *pci_dev) +{ + int vdpa = 0; + int ret = 0; + + ret = virtio_pci_devargs_parse(pci_dev->device.devargs, &vdpa); + if (ret < 0) { + PMD_INIT_LOG(ERR, "devargs parsing is failed"); + return ret; + } + /* virtio pmd skips probe if device needs to work in vdpa mode */ + if (vdpa == 1) + return 1; + + return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct virtio_pci_dev), + eth_virtio_pci_init); +} + +static int eth_virtio_pci_remove(struct rte_pci_device *pci_dev) +{ + int ret; + + ret = rte_eth_dev_pci_generic_remove(pci_dev, eth_virtio_pci_uninit); + /* Port has already been released by close. */ + if (ret == -ENODEV) + ret = 0; + return ret; +} + +static struct rte_pci_driver rte_virtio_net_pci_pmd = { + .driver = { + .name = "net_virtio", + }, + .id_table = pci_id_virtio_map, + .drv_flags = 0, + .probe = eth_virtio_pci_probe, + .remove = eth_virtio_pci_remove, +}; + +RTE_INIT(rte_virtio_net_pci_pmd_init) +{ + rte_eal_iopl_init(); + rte_pci_register(&rte_virtio_net_pci_pmd); +} + +RTE_PMD_REGISTER_PCI_TABLE(net_virtio, pci_id_virtio_map); +RTE_PMD_REGISTER_KMOD_DEP(net_virtio, "* igb_uio | uio_pci_generic | vfio-pci"); +RTE_PMD_EXPORT_NAME(net_virtio, __COUNTER__); -- 2.20.1