[dpdk-dev] [RFC 4/4] drivers/raw/ifpga_rawdev: Rawdev for Intel FPGA Device, it's a PCI Driver of FPGA Device Manager
Zhang, Tianfei
tianfei.zhang at intel.com
Wed Mar 7 05:10:00 CET 2018
-----Original Message-----
From: Shreyansh Jain [mailto:shreyansh.jain at nxp.com]
Sent: Tuesday, March 6, 2018 2:48 PM
To: Xu, Rosen <rosen.xu at intel.com>
Cc: dev at dpdk.org; Doherty, Declan <declan.doherty at intel.com>; Zhang, Tianfei <tianfei.zhang at intel.com>
Subject: Re: [dpdk-dev] [RFC 4/4] drivers/raw/ifpga_rawdev: Rawdev for Intel FPGA Device, it's a PCI Driver of FPGA Device Manager
On Tue, Mar 6, 2018 at 7:13 AM, Rosen Xu <rosen.xu at intel.com> wrote:
> Signed-off-by: Rosen Xu <rosen.xu at intel.com>
> ---
> drivers/raw/ifpga_rawdev/Makefile | 59 ++++
> drivers/raw/ifpga_rawdev/ifpga_rawdev.c | 343 +++++++++++++++++++++
> drivers/raw/ifpga_rawdev/ifpga_rawdev.h | 109 +++++++
> drivers/raw/ifpga_rawdev/ifpga_rawdev_example.c | 121 ++++++++
When rawdev skeleton driver was integrated, Thomas raised this point of naming 'skeleton_rawdev' rather than just 'skeleton'.
So, rather than 'ifpga_rawdev' rather than 'ifpga'.
At that time I thought we could use <drivertype_driversubtype> as model. But, frankly, to me it seems a bad choice now. Extra '_rawdev'
doesn't serve any purpose here.
So, feel free to change your naming to a more appropriate "drivers/raw/ifpga/" or "drivers/raw/ifpga_sample" etc.
Probably I too can change the skeleton_rawdev to skeleton.
> .../ifpga_rawdev/rte_pmd_ifpga_rawdev_version.map | 4 +
> 5 files changed, 636 insertions(+)
> create mode 100644 drivers/raw/ifpga_rawdev/Makefile create mode
> 100644 drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> create mode 100644 drivers/raw/ifpga_rawdev/ifpga_rawdev.h
> create mode 100644 drivers/raw/ifpga_rawdev/ifpga_rawdev_example.c
> create mode 100644
> drivers/raw/ifpga_rawdev/rte_pmd_ifpga_rawdev_version.map
>
> diff --git a/drivers/raw/ifpga_rawdev/Makefile
> b/drivers/raw/ifpga_rawdev/Makefile
> new file mode 100644
> index 0000000..3166fe2
> --- /dev/null
> +++ b/drivers/raw/ifpga_rawdev/Makefile
> @@ -0,0 +1,59 @@
> +# BSD LICENSE
> +#
> +# Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
> +# 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.
> +
SPDX identifier in place of BSD boiler-plate.
> +include $(RTE_SDK)/mk/rte.vars.mk
> +
> +#
> +# library name
> +#
> +LIB = librte_pmd_ifpga_rawdev.a
> +
> +CFLAGS += -DALLOW_EXPERIMENTAL_API
> +CFLAGS += -O3
> +CFLAGS += $(WERROR_FLAGS)
> +CFLAGS += -I$(RTE_SDK)/drivers/bus/ifpga CFLAGS +=
> +-I$(RTE_SDK)/drivers/raw/ifpga_rawdev
> +LDLIBS += -lrte_eal
> +LDLIBS += -lrte_rawdev
> +LDLIBS += -lrte_bus_vdev
> +LDLIBS += -lrte_kvargs
> +
> +EXPORT_MAP := rte_pmd_ifpga_rawdev_version.map
> +
> +LIBABIVER := 1
> +
> +#
> +# all source are stored in SRCS-y
> +#
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_RAWDEV) += ifpga_rawdev.c
> +SRCS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_RAWDEV) +=
> +ifpga_rawdev_example.c
This is a copy-paste issue - CONFIG_RTE_LIBRTE_PMD_SKELETON_RAWDEV
> +
> +include $(RTE_SDK)/mk/rte.lib.mk
> diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> new file mode 100644
> index 0000000..6046711
> --- /dev/null
> +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> @@ -0,0 +1,343 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright 2016 NXP.
:) - should be Intel.
Even better - SPDX
> + *
> + * 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 NXP 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 <string.h>
> +#include <dirent.h>
> +#include <sys/stat.h>
> +#include <unistd.h>
> +#include <sys/types.h>
> +#include <fcntl.h>
> +#include <rte_log.h>
> +#include <rte_bus.h>
> +#include <rte_eal_memconfig.h>
> +#include <rte_malloc.h>
> +#include <rte_devargs.h>
> +#include <rte_memcpy.h>
> +#include <rte_ethdev.h>
> +#include <rte_pci.h>
> +#include <rte_bus_pci.h>
> +#include <rte_kvargs.h>
> +#include <rte_alarm.h>
> +
> +#include <rte_errno.h>
> +#include <rte_per_lcore.h>
> +#include <rte_memory.h>
> +#include <rte_memzone.h>
> +#include <rte_eal.h>
> +#include <rte_common.h>
> +
> +#include "rte_rawdev.h"
> +#include "rte_rawdev_pmd.h"
> +#include "rte_bus_ifpga.h"
> +#include "ifpga_rawdev.h"
> +
> +int ifpga_rawdev_logtype;
> +
> +#define PCI_VENDOR_ID_INTEL 0x8086
> +/* PCI Device ID */
> +#define PCIe_DEVICE_ID_RCiEP0_MCP 0xBCBD
> +#define PCIe_DEVICE_ID_RCiEP0_SKX_P 0xBCC0
> +#define PCIe_DEVICE_ID_RCiEP0_DCP 0x09C4
> +/* VF Device */
> +#define PCIe_DEVICE_ID_VF_MCP 0xBCBF
> +#define PCIe_DEVICE_ID_VF_SKX_P 0xBCC1
> +#define PCIe_DEVICE_ID_VF_DCP 0x09C5
> +#define RTE_MAX_RAW_DEVICE 10
> +
> +static const struct rte_pci_id pci_ifpga_map[] = {
> + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIe_DEVICE_ID_RCiEP0_MCP) },
> + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIe_DEVICE_ID_VF_MCP) },
> + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIe_DEVICE_ID_RCiEP0_SKX_P) },
> + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIe_DEVICE_ID_VF_SKX_P) },
> + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIe_DEVICE_ID_RCiEP0_DCP) },
> + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIe_DEVICE_ID_VF_DCP) },
> + { .vendor_id = 0, /* sentinel */ }, };
> +
> +static void ifpga_rawdev_info_get(struct rte_rawdev *dev,
> + rte_rawdev_obj_t dev_info) {
> + struct ifpga_rawdev *ifpga;
> + struct rte_afu_device *afu_dev;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + if (!dev_info) {
> + IFPGA_RAWDEV_PMD_ERR("Invalid request");
> + return;
> + }
> +
> + ifpga = ifpga_rawdev_get_priv(dev);
> +
> + afu_dev = dev_info;
> + //-------------------------------
> + //Todo: fill afu_dev->rte_rawdev and afu_dev->rte_mem_resource
> + //*get afu_dev->num_region from Rawdev
> + //*get afu_dev->mem_resource from Rawdev
> + //*get afu_dev->max_vfs from Rawdev
> + //-------------------------------
> +
> +}
> +
> +static int ifpga_rawdev_start(struct rte_rawdev *dev) {
> + int ret = 0;
> + struct ifpga_rawdev *ifpga;
> + enum ifpga_rawdev_device_state fpga_state;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + RTE_FUNC_PTR_OR_ERR_RET(dev, -EINVAL);
> +
> + ifpga = ifpga_rawdev_get_priv(dev);
> +
> + fpga_state = ifpga->fpga_state;
> +
> + if (fpga_state == IFPGA_IDLE) {
> + ret = ifpga_enumerate(&ifpga->hw);
> + if (ret) {
> + ifpga->fpga_state = IFPGA_ERROR;
> + IFPGA_RAWDEV_PMD_ERR("Failed to enumerate fme: %d", ret);
> + ret = -EINVAL;
> + return ret;
> + }
> + ifpga_fme_hw_init(&ifpga->hw);
> + ifpga->fpga_state = IFPGA_READY;
> + } else {
> + IFPGA_RAWDEV_PMD_DEBUG("IFPGA is enumerated");
> + }
> +
> + return ret;
> +}
> +
> +static void ifpga_rawdev_stop(struct rte_rawdev *dev) {
> +
> +}
> +static int ifpga_rawdev_close(struct rte_rawdev *dev) {
> + int ret = 0;
> +
> +
> + return ret;
> +}
> +
> +static int ifpga_rawdev_reset(struct rte_rawdev *dev) {
> +
> +
> + return 0;
> +}
> +static int ifpga_rawdev_pr(struct rte_rawdev *dev,
> + rte_rawdev_obj_t pr_conf) {
> + struct ifpga_rawdev *ifpga;
> + struct ifpga_hw *hw;
> + struct rte_afu_pr_conf *afu_pr_conf;
> + int ret;
> + unsigned int num_resource = 1;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + ifpga = ifpga_rawdev_get_priv(dev);
> +
> + if (!pr_conf)
> + return -EINVAL;
> +
> + afu_pr_conf = pr_conf;
> +
> + hw = &ifpga->hw;
> + ifpga_port_hw_init(hw, afu_pr_conf->afu_id.port);
> + ifpga_get_afu_mmio_info(hw, afu_pr_conf->afu_id.port, &ifpga->pci_dev->mem_resource[0], &num_resource);
> + ret=rte_fpga_do_pr(hw, afu_pr_conf->afu_id.port, afu_pr_conf->bs_path);
> + if (ret) {
> + printf("do pr error\n");
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static const struct rte_rawdev_ops ifpga_rawdev_ops = {
> + .dev_info_get = ifpga_rawdev_info_get,
> + .dev_configure = NULL,
> + .dev_start = ifpga_rawdev_start,
> + .dev_stop = ifpga_rawdev_stop,
> + .dev_close = ifpga_rawdev_close,
> + .dev_reset = ifpga_rawdev_reset,
> +
> + .queue_def_conf = NULL,
> + .queue_setup = NULL,
> + .queue_release = NULL,
> +
> + .attr_get = NULL,
> + .attr_set = NULL,
> +
> + .enqueue_bufs = NULL,
> + .dequeue_bufs = NULL,
> +
> + .dump = NULL,
> +
> + .xstats_get = NULL,
> + .xstats_get_names = NULL,
> + .xstats_get_by_name = NULL,
> + .xstats_reset = NULL,
> +
> + .firmware_status_get = NULL,
> + .firmware_version_get = NULL,
> + .firmware_load = ifpga_rawdev_pr,
> + .firmware_unload = NULL,
> +
> + .dev_selftest = NULL,
> +};
> +
> +static int
> +ifpga_rawdev_create(struct rte_pci_device *pci_dev,
> + int socket_id) {
> + int ret = 0;
> + struct rte_rawdev *rawdev = NULL;
> + struct ifpga_rawdev *ifpga = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN];
> +
> + if (!pci_dev) {
> + IFPGA_RAWDEV_PMD_ERR("Invalid pci_dev of the device!");
> + ret = -EINVAL;
> + goto cleanup;
> + }
> +
> + memset(name, sizeof(name), 0);
> + snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%x:%x:%x",
> + pci_dev->addr.bus, pci_dev->addr.devid, pci_dev->addr.function);
> +
> + IFPGA_RAWDEV_PMD_INFO("Init %s on NUMA node %d", name,
> + rte_socket_id());
> +
> + /* Allocate device structure */
> + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct ifpga_rawdev),
> + socket_id);
> + if (rawdev == NULL) {
> + IFPGA_RAWDEV_PMD_ERR("Unable to allocate rawdevice");
> + ret = -EINVAL;
> + goto cleanup;
> + }
> +
> + rawdev->dev_ops = &ifpga_rawdev_ops;
> + rawdev->device = &pci_dev->device;
> + rawdev->driver_name = pci_dev->device.driver->name;
> +
> + ifpga = ifpga_rawdev_get_priv(rawdev);
> + ifpga->pci_dev = pci_dev;
> + ifpga->fpga_state = IFPGA_IDLE;
> +
> + /* Initialize the shared code (base driver) */
> + ret = opae_init_shared_code(&ifpga->hw);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to init shared code (base driver): %d", ret);
> + ret = -EINVAL;
> + goto cleanup;
> + }
> +
> + return ret;
> +
> +cleanup:
> + if (rawdev)
> + rte_rawdev_pmd_release(rawdev);
> +
> + return ret;
> +}
> +
> +static int
> +ifpga_rawdev_destroy(struct rte_pci_device *pci_dev) {
> + int ret;
> + struct rte_rawdev *rdev;
> + char name[RTE_RAWDEV_NAME_MAX_LEN];
> +
> + if (!pci_dev) {
> + IFPGA_RAWDEV_PMD_ERR("Invalid pci_dev of the device!");
> + ret = -EINVAL;
> + return ret;
> + }
> +
> + memset(name, sizeof(name), 0);
> + snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%x:%x:%x",
> + pci_dev->addr.bus, pci_dev->addr.devid, pci_dev->addr.function);
> +
> + IFPGA_RAWDEV_PMD_INFO("Closing %s on NUMA node %d", name,
> + rte_socket_id());
> +
> + rdev = rte_rawdev_pmd_get_named_dev(name);
> + if (!rdev) {
> + IFPGA_RAWDEV_PMD_ERR("Invalid device name (%s)", name);
> + return -EINVAL;
> + }
> +
> + /* rte_rawdev_close is called by pmd_release */
> + ret = rte_rawdev_pmd_release(rdev);
> + if (ret)
> + IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed");
> +
> + return 0;
> +}
> +
> +static int
> +ifpga_rawdev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
> + struct rte_pci_device *pci_dev) {
> + return ifpga_rawdev_create(pci_dev, rte_socket_id()); }
> +
> +static int ifpga_rawdev_pci_remove(struct rte_pci_device *pci_dev) {
> + return ifpga_rawdev_destroy(pci_dev); }
> +
> +static struct rte_pci_driver rte_ifpga_rawdev_pmd = {
> + .id_table = pci_ifpga_map,
> + .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
> + .probe = ifpga_rawdev_pci_probe,
> + .remove = ifpga_rawdev_pci_remove,
> +};
>From above, what I understand is that ifpga is a PCI device, but there are certain functions which are not available in PCI rte layer and thus you need a rawdev representation.
>But I somehow feel that you could have worked without adding another bus type (drivers/bus/ifpga).
In FPGA hardware view, it has a FME (FPGA management engine ) and several Ports and several AFUs.
*FME (FPGA management engine), major function include bitstream part reconfiguration and some other FPGA management
*Port: a Bridget connect to a AFU from FME, one port link to one AFU, some management about AFU, like AUF reset.
*AFU(accelerate function unit), customer's bitsteam running on it.
So when the FPGA enumerate finished, we will find several AFUs, and use a datastruct to represent it, like afu_device, and then
add those afu_devices into ifpga_bus.
>- PCI devices are scanned by PCI bus. (which is still happening in this RFC patches)
>- When probing is done, this driver (rawdev/ifpga) would identify and attach itself to those devices (using PCI ids for matching)
> No other driver would pass the probe because of PCI_TABLE
>- and then using rawdev APIs, interact with the device.
>Am I missing some obvious logic here which requires a new bus?
In our ifpga driver, here is our working flow coordinated with librte_rawdev:
1. we do the FPGA hardware scan or enumeration in PCI probe function which implemented in FPGA/OPAE base code.
2. rte_rawdev_info_get(),
*we find one available AFU by port_id which pass through by DPDK application command line
*and fill the hardware info into one AFU device
*add this AFU device into ifpga_bus
*trigger a hotplug to this ifpga_bus to probe available AFU driver like a Ethernet driver
3. rte_rawdev_firmware_load()
*download bitsteam into this AFU device
4. rte_rawdev_start()
* start this AFU device
> +
> +RTE_PMD_REGISTER_PCI(ifpga_rawdev_pci_driver, rte_ifpga_rawdev_pmd);
> +RTE_PMD_REGISTER_PCI_TABLE(ifpga_rawdev_pci_driver,
> +rte_ifpga_rawdev_pmd);
> +RTE_PMD_REGISTER_KMOD_DEP(ifpga_rawdev_pci_driver, "* igb_uio |
> +uio_pci_generic | vfio-pci");
> +
> +RTE_INIT(ifpga_rawdev_init_log);
> +static void
> +ifpga_rawdev_init_log(void)
> +{
> + ifpga_rawdev_logtype = rte_log_register("driver.raw.init");
> + if (ifpga_rawdev_logtype >= 0)
> + rte_log_set_level(ifpga_rawdev_logtype,
> +RTE_LOG_NOTICE); }
> +
> +void ifpga_rawdev_test(void)
> +{
> + printf("ifpga_rawdev_test \n");
> +}
> diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.h
> b/drivers/raw/ifpga_rawdev/ifpga_rawdev.h
> new file mode 100644
> index 0000000..dfa63c6
> --- /dev/null
> +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.h
> @@ -0,0 +1,109 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2017 Intel Corporation. All rights reserved.
> + * 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.
> + */
> +#ifndef _IFPGA_RAWDEV_H_
> +#define _IFPGA_RAWDEV_H_
> +
> +/*++++++++++++++++++++++++++++++++++These functions should be
> +implemented by OPAE++++++++++++++++++++++++++++++++++*/
> +struct ifpga_hw {
> + void *pci_dev; //share code will not involve any DPDK defination
> +
> + int fme;
> + int port[4];
> +};
> +
> +static int opae_init_shared_code(struct ifpga_hw *hw) {
> + //init ifpga_hw
> +
> + return 0;
> +}
> +static int ifpga_enumerate(struct ifpga_hw *hw) {
> + return 0;
> +}
> +static int ifpga_fme_hw_init(struct ifpga_hw *hw) {
> + return 0;
> +}
> +static int ifpga_port_hw_init(struct ifpga_hw *hw, int port_id) {
> + return 0;
> +}
> +static int ifpga_get_afu_mmio_info(struct ifpga_hw *hw, unsigned int port_id,
> + struct rte_mem_resource *mem_resource,
> + unsigned int *num_resource) {
> + return 0;
> +}
> +static int rte_fpga_do_pr(struct ifpga_hw *afu_dev, int port_id,
> +const char *file_name) {
> + return 0;
> +}
> +/*++++++++++++++++++++++++++++++++++These functions should be
> +implemented by OPAE++++++++++++++++++++++++++++++++++*/
> +
> +extern int ifpga_rawdev_logtype;
> +
> +#define IFPGA_RAWDEV_PMD_LOG(level, fmt, args...) \
> + rte_log(RTE_LOG_ ## level, ifpga_rawdev_logtype, "%s(): " fmt "\n", \
> + __func__, ##args)
> +
> +#define IFPGA_RAWDEV_PMD_FUNC_TRACE() IFPGA_RAWDEV_PMD_LOG(DEBUG,
> +">>")
> +
> +#define IFPGA_RAWDEV_PMD_DEBUG(fmt, args...) \
> + IFPGA_RAWDEV_PMD_LOG(DEBUG, fmt, ## args) #define
> +IFPGA_RAWDEV_PMD_INFO(fmt, args...) \
> + IFPGA_RAWDEV_PMD_LOG(INFO, fmt, ## args) #define
> +IFPGA_RAWDEV_PMD_ERR(fmt, args...) \
> + IFPGA_RAWDEV_PMD_LOG(ERR, fmt, ## args) #define
> +IFPGA_RAWDEV_PMD_WARN(fmt, args...) \
> + IFPGA_RAWDEV_PMD_LOG(WARNING, fmt, ## args)
> +
> +enum ifpga_rawdev_device_state {
> + IFPGA_IDLE,
> + IFPGA_READY,
> + IFPGA_ERROR
> +};
> +
> +struct ifpga_rawdev {
> + struct ifpga_hw hw;
> + struct rte_pci_device *pci_dev;
> + enum ifpga_rawdev_device_state fpga_state;
> +};
> +
> +static inline struct ifpga_rawdev *
> +ifpga_rawdev_get_priv(const struct rte_rawdev *rawdev) {
> + return rawdev->dev_private;
> +}
> +
> +#endif /* _IFPGA_RAWDEV_H_ */
> diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev_example.c
> b/drivers/raw/ifpga_rawdev/ifpga_rawdev_example.c
> new file mode 100644
> index 0000000..c506c0e
> --- /dev/null
> +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev_example.c
> @@ -0,0 +1,121 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2017 Intel Corporation. All rights reserved.
> + * 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 <stdio.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <stdint.h>
> +#include <inttypes.h>
> +#include <sys/types.h>
> +#include <sys/queue.h>
> +#include <netinet/in.h>
> +#include <setjmp.h>
> +#include <stdarg.h>
> +#include <ctype.h>
> +#include <errno.h>
> +#include <getopt.h>
> +#include <signal.h>
> +#include <stdbool.h>
> +
> +#include <rte_common.h>
> +#include <rte_log.h>
> +#include <rte_malloc.h>
> +#include <rte_memory.h>
> +#include <rte_memcpy.h>
> +#include <rte_eal.h>
> +#include <rte_launch.h>
> +#include <rte_atomic.h>
> +#include <rte_cycles.h>
> +#include <rte_prefetch.h>
> +#include <rte_lcore.h>
> +#include <rte_per_lcore.h>
> +#include <rte_branch_prediction.h>
> +#include <rte_interrupts.h>
> +#include <rte_random.h>
> +#include <rte_debug.h>
> +#include <rte_ether.h>
> +#include <rte_ethdev.h>
> +#include <rte_mempool.h>
> +#include <rte_mbuf.h>
> +#include <rte_io.h>
> +
> +#include <rte_errno.h>
> +#include <rte_bus.h>
> +#include <rte_memzone.h>
> +
> +#include <rte_devargs.h>
> +#include <rte_pci.h>
> +#include <rte_bus_pci.h>
> +#include <rte_alarm.h>
> +
> +#include "rte_bus_ifpga.h"
> +#include "ifpga_logs.h"
> +
> +#define RTE_PMD_REGISTER_AFU(nm, afudrv)\ RTE_INIT(afudrvinitfn_
> +##afudrv);\ static const char *afudrvinit_ ## nm ## _alias;\ static
> +void afudrvinitfn_ ##afudrv(void)\ {\
> + (afudrv).driver.name = RTE_STR(nm);\
> + (afudrv).driver.alias = afudrvinit_ ## nm ## _alias;\
> + rte_ifpga_driver_register(&afudrv);\
> +} \
> +RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
> +
> +#define RTE_PMD_REGISTER_AFU_ALIAS(nm, alias)\ static const char
> +*afudrvinit_ ## nm ## _alias = RTE_STR(alias)
> +
> +static int afu_dev_probe(struct rte_afu_device *afu_dev) {
> + return 0;
> +}
> +static int afu_dev_remove(struct rte_afu_device *afu_dev) {
> + return 0;
> +}
> +
> +static struct rte_afu_driver afu_dev_driver = {
> + .probe = afu_dev_probe,
> + .remove = afu_dev_remove,
> +};
> +
> +RTE_PMD_REGISTER_AFU(net_afu_drv_example, afu_dev_driver);
> +RTE_PMD_REGISTER_AFU_ALIAS(net_afu_drv_example, afu_dev);
> +RTE_PMD_REGISTER_PARAM_STRING(net_afu_drv_example,
> + "bdf=<string> "
> + "port=<int> "
> + "uudi_high=<int64> "
> + "uuid_low=<int64> "
> + "path=<string> "
> + "pr_enable=<int>"
> + "debug=<int>");
> diff --git a/drivers/raw/ifpga_rawdev/rte_pmd_ifpga_rawdev_version.map
> b/drivers/raw/ifpga_rawdev/rte_pmd_ifpga_rawdev_version.map
> new file mode 100644
> index 0000000..179140f
> --- /dev/null
> +++ b/drivers/raw/ifpga_rawdev/rte_pmd_ifpga_rawdev_version.map
> @@ -0,0 +1,4 @@
> +DPDK_18.02 {
>Will be 18.05
Yes, we has rebase our code on 18.05, will send patches base on 18.05.
> +
> + local: *;
> +};
> --
> 1.8.3.1
>
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