diff options
author | 2018-06-01 09:09:08 +0200 | |
---|---|---|
committer | 2018-06-01 09:12:07 +0200 | |
commit | 1bd9b61222f3a81ffe770fc00b70ded6e760c42b (patch) | |
tree | 0bf7d996cf0664796687c1be6d22958fcf6a8096 /drivers/raw/ifpga_rawdev/ifpga_rawdev.c | |
parent | bb4e158029645f37809fcf81a3acddd6fa11f88a (diff) |
New upstream version 18.05
Change-Id: Icd4170ddc4f63aeae5d0559490e5195b5349f9c2
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'drivers/raw/ifpga_rawdev/ifpga_rawdev.c')
-rw-r--r-- | drivers/raw/ifpga_rawdev/ifpga_rawdev.c | 619 |
1 files changed, 619 insertions, 0 deletions
diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c new file mode 100644 index 00000000..030ed1b6 --- /dev/null +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c @@ -0,0 +1,619 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2018 Intel Corporation + */ + +#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_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_bus_vdev.h> + +#include "base/opae_hw_api.h" +#include "rte_rawdev.h" +#include "rte_rawdev_pmd.h" +#include "rte_bus_ifpga.h" +#include "ifpga_common.h" +#include "ifpga_logs.h" +#include "ifpga_rawdev.h" + +int ifpga_rawdev_logtype; + +#define PCI_VENDOR_ID_INTEL 0x8086 +/* PCI Device ID */ +#define PCIE_DEVICE_ID_PF_INT_5_X 0xBCBD +#define PCIE_DEVICE_ID_PF_INT_6_X 0xBCC0 +#define PCIE_DEVICE_ID_PF_DSC_1_X 0x09C4 +/* VF Device */ +#define PCIE_DEVICE_ID_VF_INT_5_X 0xBCBF +#define PCIE_DEVICE_ID_VF_INT_6_X 0xBCC1 +#define PCIE_DEVICE_ID_VF_DSC_1_X 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_PF_INT_5_X) }, + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIE_DEVICE_ID_VF_INT_5_X) }, + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIE_DEVICE_ID_PF_INT_6_X) }, + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIE_DEVICE_ID_VF_INT_6_X) }, + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIE_DEVICE_ID_PF_DSC_1_X) }, + { RTE_PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCIE_DEVICE_ID_VF_DSC_1_X) }, + { .vendor_id = 0, /* sentinel */ }, +}; + +static int +ifpga_fill_afu_dev(struct opae_accelerator *acc, + struct rte_afu_device *afu_dev) +{ + struct rte_mem_resource *res = afu_dev->mem_resource; + struct opae_acc_region_info region_info; + struct opae_acc_info info; + unsigned long i; + int ret; + + ret = opae_acc_get_info(acc, &info); + if (ret) + return ret; + + if (info.num_regions > PCI_MAX_RESOURCE) + return -EFAULT; + + afu_dev->num_region = info.num_regions; + + for (i = 0; i < info.num_regions; i++) { + region_info.index = i; + ret = opae_acc_get_region_info(acc, ®ion_info); + if (ret) + return ret; + + if ((region_info.flags & ACC_REGION_MMIO) && + (region_info.flags & ACC_REGION_READ) && + (region_info.flags & ACC_REGION_WRITE)) { + res[i].phys_addr = region_info.phys_addr; + res[i].len = region_info.len; + res[i].addr = region_info.addr; + } else + return -EFAULT; + } + + return 0; +} + +static void +ifpga_rawdev_info_get(struct rte_rawdev *dev, + rte_rawdev_obj_t dev_info) +{ + struct opae_adapter *adapter; + struct opae_accelerator *acc; + struct rte_afu_device *afu_dev; + + IFPGA_RAWDEV_PMD_FUNC_TRACE(); + + if (!dev_info) { + IFPGA_RAWDEV_PMD_ERR("Invalid request"); + return; + } + + adapter = ifpga_rawdev_get_priv(dev); + if (!adapter) + return; + + afu_dev = dev_info; + afu_dev->rawdev = dev; + + /* find opae_accelerator and fill info into afu_device */ + opae_adapter_for_each_acc(adapter, acc) { + if (acc->index != afu_dev->id.port) + continue; + + if (ifpga_fill_afu_dev(acc, afu_dev)) { + IFPGA_RAWDEV_PMD_ERR("cannot get info\n"); + return; + } + } +} + +static int +ifpga_rawdev_configure(const struct rte_rawdev *dev, + rte_rawdev_obj_t config) +{ + IFPGA_RAWDEV_PMD_FUNC_TRACE(); + + RTE_FUNC_PTR_OR_ERR_RET(dev, -EINVAL); + + return config ? 0 : 1; +} + +static int +ifpga_rawdev_start(struct rte_rawdev *dev) +{ + int ret = 0; + struct opae_adapter *adapter; + + IFPGA_RAWDEV_PMD_FUNC_TRACE(); + + RTE_FUNC_PTR_OR_ERR_RET(dev, -EINVAL); + + adapter = ifpga_rawdev_get_priv(dev); + if (!adapter) + return -ENODEV; + + return ret; +} + +static void +ifpga_rawdev_stop(struct rte_rawdev *dev) +{ + dev->started = 0; +} + +static int +ifpga_rawdev_close(struct rte_rawdev *dev) +{ + return dev ? 0:1; +} + +static int +ifpga_rawdev_reset(struct rte_rawdev *dev) +{ + return dev ? 0:1; +} + +static int +fpga_pr(struct rte_rawdev *raw_dev, u32 port_id, u64 *buffer, u32 size, + u64 *status) +{ + + struct opae_adapter *adapter; + struct opae_manager *mgr; + struct opae_accelerator *acc; + struct opae_bridge *br; + int ret; + + adapter = ifpga_rawdev_get_priv(raw_dev); + if (!adapter) + return -ENODEV; + + mgr = opae_adapter_get_mgr(adapter); + if (!mgr) + return -ENODEV; + + acc = opae_adapter_get_acc(adapter, port_id); + if (!acc) + return -ENODEV; + + br = opae_acc_get_br(acc); + if (!br) + return -ENODEV; + + ret = opae_manager_flash(mgr, port_id, buffer, size, status); + if (ret) { + IFPGA_RAWDEV_PMD_ERR("%s pr error %d\n", __func__, ret); + return ret; + } + + ret = opae_bridge_reset(br); + if (ret) { + IFPGA_RAWDEV_PMD_ERR("%s reset port:%d error %d\n", + __func__, port_id, ret); + return ret; + } + + return ret; +} + +static int +rte_fpga_do_pr(struct rte_rawdev *rawdev, int port_id, + const char *file_name) +{ + struct stat file_stat; + int file_fd; + int ret = 0; + ssize_t buffer_size; + void *buffer; + u64 pr_error; + + if (!file_name) + return -EINVAL; + + file_fd = open(file_name, O_RDONLY); + if (file_fd < 0) { + IFPGA_RAWDEV_PMD_ERR("%s: open file error: %s\n", + __func__, file_name); + IFPGA_RAWDEV_PMD_ERR("Message : %s\n", strerror(errno)); + return -EINVAL; + } + ret = stat(file_name, &file_stat); + if (ret) { + IFPGA_RAWDEV_PMD_ERR("stat on bitstream file failed: %s\n", + file_name); + return -EINVAL; + } + buffer_size = file_stat.st_size; + IFPGA_RAWDEV_PMD_INFO("bitstream file size: %zu\n", buffer_size); + buffer = rte_malloc(NULL, buffer_size, 0); + if (!buffer) { + ret = -ENOMEM; + goto close_fd; + } + + /*read the raw data*/ + if (buffer_size != read(file_fd, (void *)buffer, buffer_size)) { + ret = -EINVAL; + goto free_buffer; + } + + /*do PR now*/ + ret = fpga_pr(rawdev, port_id, buffer, buffer_size, &pr_error); + IFPGA_RAWDEV_PMD_INFO("downloading to device port %d....%s.\n", port_id, + ret ? "failed" : "success"); + if (ret) { + ret = -EINVAL; + goto free_buffer; + } + +free_buffer: + if (buffer) + rte_free(buffer); +close_fd: + close(file_fd); + file_fd = 0; + return ret; +} + +static int +ifpga_rawdev_pr(struct rte_rawdev *dev, + rte_rawdev_obj_t pr_conf) +{ + struct opae_adapter *adapter; + struct rte_afu_pr_conf *afu_pr_conf; + int ret; + struct uuid uuid; + struct opae_accelerator *acc; + + IFPGA_RAWDEV_PMD_FUNC_TRACE(); + + adapter = ifpga_rawdev_get_priv(dev); + if (!adapter) + return -ENODEV; + + if (!pr_conf) + return -EINVAL; + + afu_pr_conf = pr_conf; + + if (afu_pr_conf->pr_enable) { + ret = rte_fpga_do_pr(dev, + afu_pr_conf->afu_id.port, + afu_pr_conf->bs_path); + if (ret) { + IFPGA_RAWDEV_PMD_ERR("do pr error %d\n", ret); + return ret; + } + } + + acc = opae_adapter_get_acc(adapter, afu_pr_conf->afu_id.port); + if (!acc) + return -ENODEV; + + ret = opae_acc_get_uuid(acc, &uuid); + if (ret) + return ret; + + memcpy(&afu_pr_conf->afu_id.uuid.uuid_low, uuid.b, sizeof(u64)); + memcpy(&afu_pr_conf->afu_id.uuid.uuid_high, uuid.b + 8, sizeof(u64)); + + IFPGA_RAWDEV_PMD_INFO("%s: uuid_l=0x%lx, uuid_h=0x%lx\n", __func__, + (unsigned long)afu_pr_conf->afu_id.uuid.uuid_low, + (unsigned long)afu_pr_conf->afu_id.uuid.uuid_high); + + return 0; +} + +static const struct rte_rawdev_ops ifpga_rawdev_ops = { + .dev_info_get = ifpga_rawdev_info_get, + .dev_configure = ifpga_rawdev_configure, + .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 opae_adapter *adapter = NULL; + struct opae_manager *mgr = NULL; + struct opae_adapter_data_pci *data = NULL; + char name[RTE_RAWDEV_NAME_MAX_LEN]; + int i; + + if (!pci_dev) { + IFPGA_RAWDEV_PMD_ERR("Invalid pci_dev of the device!"); + ret = -EINVAL; + goto cleanup; + } + + memset(name, 0, sizeof(name)); + snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%x:%02x.%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 opae_adapter), + socket_id); + if (rawdev == NULL) { + IFPGA_RAWDEV_PMD_ERR("Unable to allocate rawdevice"); + ret = -EINVAL; + goto cleanup; + } + + /* alloc OPAE_FPGA_PCI data to register to OPAE hardware level API */ + data = opae_adapter_data_alloc(OPAE_FPGA_PCI); + if (!data) { + ret = -ENOMEM; + goto cleanup; + } + + /* init opae_adapter_data_pci for device specific information */ + for (i = 0; i < PCI_MAX_RESOURCE; i++) { + data->region[i].phys_addr = pci_dev->mem_resource[i].phys_addr; + data->region[i].len = pci_dev->mem_resource[i].len; + data->region[i].addr = pci_dev->mem_resource[i].addr; + } + data->device_id = pci_dev->id.device_id; + data->vendor_id = pci_dev->id.vendor_id; + + /* create a opae_adapter based on above device data */ + adapter = opae_adapter_alloc(pci_dev->device.name, data); + if (!adapter) { + ret = -ENOMEM; + goto free_adapter_data; + } + + rawdev->dev_ops = &ifpga_rawdev_ops; + rawdev->device = &pci_dev->device; + rawdev->driver_name = pci_dev->device.driver->name; + + rawdev->dev_private = adapter; + + /* must enumerate the adapter before use it */ + ret = opae_adapter_enumerate(adapter); + if (ret) + goto free_adapter; + + /* get opae_manager to rawdev */ + mgr = opae_adapter_get_mgr(adapter); + if (mgr) { + /* PF function */ + IFPGA_RAWDEV_PMD_INFO("this is a PF function"); + } + + return ret; + +free_adapter: + if (adapter) + opae_adapter_free(adapter); +free_adapter_data: + if (data) + opae_adapter_data_free(data); +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 *rawdev; + char name[RTE_RAWDEV_NAME_MAX_LEN]; + struct opae_adapter *adapter; + + if (!pci_dev) { + IFPGA_RAWDEV_PMD_ERR("Invalid pci_dev of the device!"); + ret = -EINVAL; + return ret; + } + + memset(name, 0, sizeof(name)); + snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%x:%02x.%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()); + + rawdev = rte_rawdev_pmd_get_named_dev(name); + if (!rawdev) { + IFPGA_RAWDEV_PMD_ERR("Invalid device name (%s)", name); + return -EINVAL; + } + + adapter = ifpga_rawdev_get_priv(rawdev); + if (!adapter) + return -ENODEV; + + opae_adapter_data_free(adapter->data); + opae_adapter_free(adapter); + + /* rte_rawdev_close is called by pmd_release */ + ret = rte_rawdev_pmd_release(rawdev); + if (ret) + IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed"); + + return ret; +} + +static int +ifpga_rawdev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, + struct rte_pci_device *pci_dev) +{ + + IFPGA_RAWDEV_PMD_FUNC_TRACE(); + 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, + .probe = ifpga_rawdev_pci_probe, + .remove = ifpga_rawdev_pci_remove, +}; + +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); +} + +static const char * const valid_args[] = { +#define IFPGA_ARG_NAME "ifpga" + IFPGA_ARG_NAME, +#define IFPGA_ARG_PORT "port" + IFPGA_ARG_PORT, +#define IFPGA_AFU_BTS "afu_bts" + IFPGA_AFU_BTS, + NULL +}; + +static int +ifpga_cfg_probe(struct rte_vdev_device *dev) +{ + struct rte_devargs *devargs; + struct rte_kvargs *kvlist = NULL; + int port; + char *name = NULL; + char dev_name[RTE_RAWDEV_NAME_MAX_LEN]; + + devargs = dev->device.devargs; + + kvlist = rte_kvargs_parse(devargs->args, valid_args); + if (!kvlist) { + IFPGA_RAWDEV_PMD_LOG(ERR, "error when parsing param"); + goto end; + } + + if (rte_kvargs_count(kvlist, IFPGA_ARG_NAME) == 1) { + if (rte_kvargs_process(kvlist, IFPGA_ARG_NAME, + &rte_ifpga_get_string_arg, &name) < 0) { + IFPGA_RAWDEV_PMD_ERR("error to parse %s", + IFPGA_ARG_NAME); + goto end; + } + } else { + IFPGA_RAWDEV_PMD_ERR("arg %s is mandatory for ifpga bus", + IFPGA_ARG_NAME); + goto end; + } + + if (rte_kvargs_count(kvlist, IFPGA_ARG_PORT) == 1) { + if (rte_kvargs_process(kvlist, + IFPGA_ARG_PORT, + &rte_ifpga_get_integer32_arg, + &port) < 0) { + IFPGA_RAWDEV_PMD_ERR("error to parse %s", + IFPGA_ARG_PORT); + goto end; + } + } else { + IFPGA_RAWDEV_PMD_ERR("arg %s is mandatory for ifpga bus", + IFPGA_ARG_PORT); + goto end; + } + + memset(dev_name, 0, sizeof(dev_name)); + snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "%d|%s", + port, name); + + rte_eal_hotplug_add(RTE_STR(IFPGA_BUS_NAME), + dev_name, devargs->args); +end: + if (kvlist) + rte_kvargs_free(kvlist); + if (name) + free(name); + + return 0; +} + +static int +ifpga_cfg_remove(struct rte_vdev_device *vdev) +{ + IFPGA_RAWDEV_PMD_INFO("Remove ifpga_cfg %p", + vdev); + + return 0; +} + +static struct rte_vdev_driver ifpga_cfg_driver = { + .probe = ifpga_cfg_probe, + .remove = ifpga_cfg_remove, +}; + +RTE_PMD_REGISTER_VDEV(ifpga_rawdev_cfg, ifpga_cfg_driver); +RTE_PMD_REGISTER_ALIAS(ifpga_rawdev_cfg, ifpga_cfg); +RTE_PMD_REGISTER_PARAM_STRING(ifpga_rawdev_cfg, + "ifpga=<string> " + "port=<int> " + "afu_bts=<path>"); + |