From: Neil Horman Date: Mon, 21 Apr 2014 14:59:31 +0000 (-0400) Subject: eal: make vdev init path generic for both virtual and pci devices X-Git-Tag: spdx-start~10812 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=e57f20e05177;p=dpdk.git eal: make vdev init path generic for both virtual and pci devices Currently, physical device pmds use a separate initalization path (rte_pmd_init_all) while virtual devices use a constructor registration and rte_eal_dev_init. Theres no reason to have them be separate. This patch removes the vdev specific nomenclature from the vdev init path and makes it more generic for use with all pmds. This is the first step in converting the physical device pmds to using the same constructor based registration path that the virtual devices use. Signed-off-by: Neil Horman Acked-by: Thomas Monjalon --- diff --git a/lib/librte_eal/bsdapp/eal/Makefile b/lib/librte_eal/bsdapp/eal/Makefile index e36c539286..d9d9861b79 100644 --- a/lib/librte_eal/bsdapp/eal/Makefile +++ b/lib/librte_eal/bsdapp/eal/Makefile @@ -70,7 +70,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_cpuflags.c SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_string_fns.c SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_hexdump.c SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_devargs.c -SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_vdev.c +SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_dev.c CFLAGS_eal.o := -D_GNU_SOURCE #CFLAGS_eal_thread.o := -D_GNU_SOURCE diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c index fcd14335bc..fab9ecab6d 100644 --- a/lib/librte_eal/bsdapp/eal/eal.c +++ b/lib/librte_eal/bsdapp/eal/eal.c @@ -875,8 +875,8 @@ rte_eal_init(int argc, char **argv) rte_eal_mcfg_complete(); - if (rte_eal_vdev_init() < 0) - rte_panic("Cannot init virtual devices\n"); + if (rte_eal_dev_init() < 0) + rte_panic("Cannot init pmd devices\n"); RTE_LCORE_FOREACH_SLAVE(i) { diff --git a/lib/librte_eal/common/Makefile b/lib/librte_eal/common/Makefile index 2f99bf4227..0016fc5337 100644 --- a/lib/librte_eal/common/Makefile +++ b/lib/librte_eal/common/Makefile @@ -38,7 +38,7 @@ INC += rte_pci_dev_ids.h rte_per_lcore.h rte_prefetch.h rte_random.h INC += rte_rwlock.h rte_spinlock.h rte_tailq.h rte_interrupts.h rte_alarm.h INC += rte_string_fns.h rte_cpuflags.h rte_version.h rte_tailq_elem.h INC += rte_eal_memconfig.h rte_malloc_heap.h -INC += rte_hexdump.h rte_devargs.h rte_vdev.h +INC += rte_hexdump.h rte_devargs.h rte_dev.h ifeq ($(CONFIG_RTE_INSECURE_FUNCTION_WARNING),y) INC += rte_warnings.h diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c new file mode 100644 index 0000000000..8c42738c53 --- /dev/null +++ b/lib/librte_eal/common/eal_common_dev.c @@ -0,0 +1,109 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2014 6WIND S.A. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include + +#include +#include +#include +#include + +#include "eal_private.h" + +/** Global list of device drivers. */ +static struct rte_driver_list dev_driver_list = + TAILQ_HEAD_INITIALIZER(dev_driver_list); + +/* register a driver */ +void +rte_eal_driver_register(struct rte_driver *driver) +{ + TAILQ_INSERT_TAIL(&dev_driver_list, driver, next); +} + +/* unregister a driver */ +void +rte_eal_driver_unregister(struct rte_driver *driver) +{ + TAILQ_REMOVE(&dev_driver_list, driver, next); +} + +int +rte_eal_dev_init(void) +{ + struct rte_devargs *devargs; + struct rte_driver *driver; + + /* + * Note that the dev_driver_list is populated here + * from calls made to rte_eal_driver_register from constructor functions + * embedded into PMD modules via the PMD_REGISTER_DRIVER macro + */ + + /* call the init function for each virtual device */ + TAILQ_FOREACH(devargs, &devargs_list, next) { + + if (devargs->type != RTE_DEVTYPE_VIRTUAL) + continue; + + TAILQ_FOREACH(driver, &dev_driver_list, next) { + if (driver->type != PMD_VDEV) + continue; + + /* search a driver prefix in virtual device name */ + if (!strncmp(driver->name, devargs->virtual.drv_name, + strlen(driver->name))) { + driver->init(devargs->virtual.drv_name, + devargs->args); + break; + } + } + + if (driver == NULL) { + rte_panic("no driver found for %s\n", + devargs->virtual.drv_name); + } + } + + /* Once the vdevs are initalized, start calling all the pdev drivers */ + TAILQ_FOREACH(driver, &dev_driver_list, next) { + if (driver->type != PMD_PDEV) + continue; + /* PDEV drivers don't get passed any parameters */ + driver->init(NULL, NULL); + } + return 0; +} diff --git a/lib/librte_eal/common/eal_common_vdev.c b/lib/librte_eal/common/eal_common_vdev.c deleted file mode 100644 index 62d03028c6..0000000000 --- a/lib/librte_eal/common/eal_common_vdev.c +++ /dev/null @@ -1,97 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * Copyright(c) 2014 6WIND S.A. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include -#include -#include - -#include -#include -#include -#include - -#include "eal_private.h" - -/** Global list of virtual device drivers. */ -static struct rte_vdev_driver_list vdev_driver_list = - TAILQ_HEAD_INITIALIZER(vdev_driver_list); - -/* register a driver */ -void -rte_eal_vdev_driver_register(struct rte_vdev_driver *driver) -{ - TAILQ_INSERT_TAIL(&vdev_driver_list, driver, next); -} - -/* unregister a driver */ -void -rte_eal_vdev_driver_unregister(struct rte_vdev_driver *driver) -{ - TAILQ_REMOVE(&vdev_driver_list, driver, next); -} - -int -rte_eal_vdev_init(void) -{ - struct rte_devargs *devargs; - struct rte_vdev_driver *driver; - - /* No need to register drivers that are embeded in DPDK - * (pmd_pcap, pmd_ring, ...). The initialization function have - * the ((constructor)) attribute so they will register at - * startup. */ - - /* call the init function for each virtual device */ - TAILQ_FOREACH(devargs, &devargs_list, next) { - - if (devargs->type != RTE_DEVTYPE_VIRTUAL) - continue; - - TAILQ_FOREACH(driver, &vdev_driver_list, next) { - /* search a driver prefix in virtual device name */ - if (!strncmp(driver->name, devargs->virtual.drv_name, - strlen(driver->name))) { - driver->init(devargs->virtual.drv_name, - devargs->args); - break; - } - } - - if (driver == NULL) { - rte_panic("no driver found for %s\n", - devargs->virtual.drv_name); - } - } - return 0; -} diff --git a/lib/librte_eal/common/include/eal_private.h b/lib/librte_eal/common/include/eal_private.h index 22d8b084a4..b99ad23b04 100644 --- a/lib/librte_eal/common/include/eal_private.h +++ b/lib/librte_eal/common/include/eal_private.h @@ -201,6 +201,6 @@ int rte_eal_alarm_init(void); * * This function is private to the EAL. */ -int rte_eal_vdev_init(void); +int rte_eal_dev_init(void); #endif /* _EAL_PRIVATE_H_ */ diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h new file mode 100644 index 0000000000..5af36c81ac --- /dev/null +++ b/lib/librte_eal/common/include/rte_dev.h @@ -0,0 +1,111 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2014 6WIND S.A. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of 6WIND S.A. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _RTE_DEV_H_ +#define _RTE_DEV_H_ + +/** + * @file + * + * RTE PMD Driver Registration Interface + * + * This file manages the list of device drivers. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include + +/** Double linked list of device drivers. */ +TAILQ_HEAD(rte_driver_list, rte_driver); + +/** + * Initialization function called for each device driver once. + */ +typedef int (rte_dev_init_t)(const char *name, const char *args); + +/** + * Driver type enumeration + */ +enum pmd_type { + PMD_VDEV = 0, + PMD_PDEV = 1, +}; + +/** + * A structure describing a device driver. + */ +struct rte_driver { + TAILQ_ENTRY(rte_driver) next; /**< Next in list. */ + enum pmd_type type; /**< PMD Driver type */ + const char *name; /**< Driver name. */ + rte_dev_init_t *init; /**< Device init. function. */ +}; + +/** + * Register a device driver. + * + * @param driver + * A pointer to a rte_dev structure describing the driver + * to be registered. + */ +void rte_eal_driver_register(struct rte_driver *driver); + +/** + * Unregister a device driver. + * + * @param driver + * A pointer to a rte_dev structure describing the driver + * to be unregistered. + */ +void rte_eal_driver_unregister(struct rte_driver *driver); + +/** + * Initalize all the registered drivers in this process + */ +int rte_eal_dev_init(void); + +#define PMD_REGISTER_DRIVER(d)\ +void devinitfn_ ##d(void);\ +void __attribute__((constructor, used)) devinitfn_ ##d(void)\ +{\ + rte_eal_driver_register(&d);\ +} + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_VDEV_H_ */ diff --git a/lib/librte_eal/common/include/rte_vdev.h b/lib/librte_eal/common/include/rte_vdev.h deleted file mode 100644 index c7aa7955df..0000000000 --- a/lib/librte_eal/common/include/rte_vdev.h +++ /dev/null @@ -1,108 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2014 6WIND S.A. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of 6WIND S.A. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _RTE_VDEV_H_ -#define _RTE_VDEV_H_ - -/** - * @file - * - * RTE Virtual Devices Interface - * - * This file manages the list of the virtual device drivers. - */ - -#ifdef __cplusplus -extern "C" { -#endif - -#include - -/** Double linked list of virtual device drivers. */ -TAILQ_HEAD(rte_vdev_driver_list, rte_vdev_driver); - -/** - * Initialization function called for each virtual device probing. - */ -typedef int (rte_vdev_init_t)(const char *name, const char *args); - -/** - * A structure describing a virtual device driver. - */ -struct rte_vdev_driver { - TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */ - const char *name; /**< Driver name. */ - rte_vdev_init_t *init; /**< Device init. function. */ -}; - -/** - * Register a virtual device driver. - * - * @param driver - * A pointer to a rte_vdev structure describing the driver - * to be registered. - */ -void rte_eal_vdev_driver_register(struct rte_vdev_driver *driver); - -/** - * Unregister a virtual device driver. - * - * @param driver - * A pointer to a rte_vdev structure describing the driver - * to be unregistered. - */ -void rte_eal_vdev_driver_unregister(struct rte_vdev_driver *driver); - -enum rte_pmd_driver_type { - PMD_VDEV = 1 -}; - -extern void rte_eal_nonpci_dev_init_register(const char *name, int (*dev_initfn)(const char *, const char *)); -#define PMD_REGISTER_DRIVER(d, t)\ -void devinitfn_ ##d(void);\ -void __attribute__((constructor, used)) devinitfn_ ##d(void)\ -{\ - enum rte_pmd_driver_type _t = (t);\ - switch(_t)\ - {\ - case PMD_VDEV:\ - rte_eal_vdev_driver_register(&d);\ - break;\ - };\ -} - -#ifdef __cplusplus -} -#endif - -#endif /* _RTE_VDEV_H_ */ diff --git a/lib/librte_eal/linuxapp/eal/Makefile b/lib/librte_eal/linuxapp/eal/Makefile index b00e3ec124..b052820477 100644 --- a/lib/librte_eal/linuxapp/eal/Makefile +++ b/lib/librte_eal/linuxapp/eal/Makefile @@ -78,7 +78,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_cpuflags.c SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_string_fns.c SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_hexdump.c SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_devargs.c -SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_vdev.c +SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_dev.c CFLAGS_eal.o := -D_GNU_SOURCE CFLAGS_eal_thread.o := -D_GNU_SOURCE diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c index de182e109a..9d2675bf62 100644 --- a/lib/librte_eal/linuxapp/eal/eal.c +++ b/lib/librte_eal/linuxapp/eal/eal.c @@ -1061,8 +1061,8 @@ rte_eal_init(int argc, char **argv) RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n", rte_config.master_lcore, (int)thread_id); - if (rte_eal_vdev_init() < 0) - rte_panic("Cannot init virtual devices\n"); + if (rte_eal_dev_init() < 0) + rte_panic("Cannot init pmd devices\n"); RTE_LCORE_FOREACH_SLAVE(i) { diff --git a/lib/librte_pmd_pcap/rte_eth_pcap.c b/lib/librte_pmd_pcap/rte_eth_pcap.c index c987940fd9..dc4670c14c 100644 --- a/lib/librte_pmd_pcap/rte_eth_pcap.c +++ b/lib/librte_pmd_pcap/rte_eth_pcap.c @@ -40,7 +40,7 @@ #include #include #include -#include +#include #include @@ -767,9 +767,10 @@ rte_pmd_pcap_devinit(const char *name, const char *params) } -static struct rte_vdev_driver pmd_pcap_drv = { +static struct rte_driver pmd_pcap_drv = { .name = "eth_pcap", + .type = PMD_VDEV, .init = rte_pmd_pcap_devinit, }; -PMD_REGISTER_DRIVER(pmd_pcap_drv, PMD_VDEV); +PMD_REGISTER_DRIVER(pmd_pcap_drv); diff --git a/lib/librte_pmd_ring/rte_eth_ring.c b/lib/librte_pmd_ring/rte_eth_ring.c index 102115babd..11a1196253 100644 --- a/lib/librte_pmd_ring/rte_eth_ring.c +++ b/lib/librte_pmd_ring/rte_eth_ring.c @@ -37,7 +37,7 @@ #include #include #include -#include +#include #include #define ETH_RING_NUMA_NODE_ACTION_ARG "nodeaction" @@ -520,9 +520,10 @@ out: return ret; } -static struct rte_vdev_driver pmd_ring_drv = { +static struct rte_driver pmd_ring_drv = { .name = "eth_ring", + .type = PMD_VDEV, .init = rte_pmd_ring_devinit, }; -PMD_REGISTER_DRIVER(pmd_ring_drv, PMD_VDEV); +PMD_REGISTER_DRIVER(pmd_ring_drv); diff --git a/lib/librte_pmd_xenvirt/rte_eth_xenvirt.c b/lib/librte_pmd_xenvirt/rte_eth_xenvirt.c index adc1415f99..34c61d899e 100644 --- a/lib/librte_pmd_xenvirt/rte_eth_xenvirt.c +++ b/lib/librte_pmd_xenvirt/rte_eth_xenvirt.c @@ -53,7 +53,7 @@ #include #include #include -#include +#include #include #include @@ -706,9 +706,10 @@ rte_pmd_xenvirt_devinit(const char *name, const char *params) return 0; } -static struct rte_vdev_driver pmd_xenvirt_drv = { +static struct rte_driver pmd_xenvirt_drv = { .name = "eth_xenvirt", + .type = PMD_VDEV, .init = rte_pmd_xenvirt_devinit, }; -PMD_REGISTER_DRIVER(pmd_xenvirt_drv, PMD_VDEV); +PMD_REGISTER_DRIVER(pmd_xenvirt_drv);