New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 617 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..3fed0578
--- /dev/null
+++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
@@ -0,0 +1,617 @@
+/* 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, &region_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)
+{
+	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>");
+