1 files changed, 0 insertions, 431 deletions
diff --git a/lib/librte_vhost/vhost_cuse/vhost-net-cdev.c b/lib/librte_vhost/vhost_cuse/vhost-net-cdev.c
deleted file mode 100644
index 5d150116..00000000
--- a/lib/librte_vhost/vhost_cuse/vhost-net-cdev.c
+++ /dev/null
@@ -1,431 +0,0 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 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 <errno.h>
-#include <fuse/cuse_lowlevel.h>
-#include <linux/limits.h>
-#include <linux/vhost.h>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <rte_ethdev.h>
-#include <rte_log.h>
-#include <rte_string_fns.h>
-#include <rte_virtio_net.h>
-
-#include "virtio-net-cdev.h"
-#include "vhost-net.h"
-#include "eventfd_copy.h"
-
-#define FUSE_OPT_DUMMY "\0\0"
-#define FUSE_OPT_FORE  "-f\0\0"
-#define FUSE_OPT_NOMULTI "-s\0\0"
-
-static const uint32_t default_major = 231;
-static const uint32_t default_minor = 1;
-static const char cuse_device_name[] = "/dev/cuse";
-static const char default_cdev[] = "vhost-net";
-
-static struct fuse_session *session;
-
-/*
- * Returns vhost_cuse_device_ctx from given fuse_req_t. The
- * index is populated later when the device is added to the
- * device linked list.
- */
-static struct vhost_cuse_device_ctx
-fuse_req_to_vhost_ctx(fuse_req_t req, struct fuse_file_info *fi)
-{
-	struct vhost_cuse_device_ctx ctx;
-	struct fuse_ctx const *const req_ctx = fuse_req_ctx(req);
-
-	ctx.pid = req_ctx->pid;
-	ctx.vid = (int)fi->fh;
-
-	return ctx;
-}
-
-/*
- * When the device is created in QEMU it gets initialised here and
- * added to the device linked list.
- */
-static void
-vhost_net_open(fuse_req_t req, struct fuse_file_info *fi)
-{
-	int vid = 0;
-
-	vid = vhost_new_device();
-	if (vid == -1) {
-		fuse_reply_err(req, EPERM);
-		return;
-	}
-
-	fi->fh = vid;
-
-	RTE_LOG(INFO, VHOST_CONFIG,
-		"(%d) device configuration started\n", vid);
-	fuse_reply_open(req, fi);
-}
-
-/*
- * When QEMU is shutdown or killed the device gets released.
- */
-static void
-vhost_net_release(fuse_req_t req, struct fuse_file_info *fi)
-{
-	int err = 0;
-	struct vhost_cuse_device_ctx ctx = fuse_req_to_vhost_ctx(req, fi);
-
-	vhost_destroy_device(ctx.vid);
-	RTE_LOG(INFO, VHOST_CONFIG, "(%d) device released\n", ctx.vid);
-	fuse_reply_err(req, err);
-}
-
-/*
- * Boilerplate code for CUSE IOCTL
- * Implicit arguments: vid, req, result.
- */
-#define VHOST_IOCTL(func) do {	\
-	result = (func)(vid);	\
-	fuse_reply_ioctl(req, result, NULL, 0);	\
-} while (0)
-
-/*
- * Boilerplate IOCTL RETRY
- * Implicit arguments: req.
- */
-#define VHOST_IOCTL_RETRY(size_r, size_w) do {	\
-	struct iovec iov_r = { arg, (size_r) };	\
-	struct iovec iov_w = { arg, (size_w) };	\
-	fuse_reply_ioctl_retry(req, &iov_r,	\
-		(size_r) ? 1 : 0, &iov_w, (size_w) ? 1 : 0);\
-} while (0)
-
-/*
- * Boilerplate code for CUSE Read IOCTL
- * Implicit arguments: vid, req, result, in_bufsz, in_buf.
- */
-#define VHOST_IOCTL_R(type, var, func) do {	\
-	if (!in_bufsz) {	\
-		VHOST_IOCTL_RETRY(sizeof(type), 0);\
-	} else {	\
-		(var) = *(const type*)in_buf;	\
-		result = func(vid, &(var));	\
-		fuse_reply_ioctl(req, result, NULL, 0);\
-	}	\
-} while (0)
-
-/*
- * Boilerplate code for CUSE Write IOCTL
- * Implicit arguments: vid, req, result, out_bufsz.
- */
-#define VHOST_IOCTL_W(type, var, func) do {	\
-	if (!out_bufsz) {	\
-		VHOST_IOCTL_RETRY(0, sizeof(type));\
-	} else {	\
-		result = (func)(vid, &(var));\
-		fuse_reply_ioctl(req, result, &(var), sizeof(type));\
-	} \
-} while (0)
-
-/*
- * Boilerplate code for CUSE Read/Write IOCTL
- * Implicit arguments: vid, req, result, in_bufsz, in_buf.
- */
-#define VHOST_IOCTL_RW(type1, var1, type2, var2, func) do {	\
-	if (!in_bufsz) {	\
-		VHOST_IOCTL_RETRY(sizeof(type1), sizeof(type2));\
-	} else {	\
-		(var1) = *(const type1*) (in_buf);	\
-		result = (func)(vid, (var1), &(var2));	\
-		fuse_reply_ioctl(req, result, &(var2), sizeof(type2));\
-	}	\
-} while (0)
-
-/*
- * The IOCTLs are handled using CUSE/FUSE in userspace. Depending on the type
- * of IOCTL a buffer is requested to read or to write. This request is handled
- * by FUSE and the buffer is then given to CUSE.
- */
-static void
-vhost_net_ioctl(fuse_req_t req, int cmd, void *arg,
-		struct fuse_file_info *fi, __rte_unused unsigned flags,
-		const void *in_buf, size_t in_bufsz, size_t out_bufsz)
-{
-	struct vhost_cuse_device_ctx ctx = fuse_req_to_vhost_ctx(req, fi);
-	struct vhost_vring_file file;
-	struct vhost_vring_state state;
-	struct vhost_vring_addr addr;
-	uint64_t features;
-	uint32_t index;
-	int result = 0;
-	int vid = ctx.vid;
-
-	switch (cmd) {
-	case VHOST_NET_SET_BACKEND:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_NET_SET_BACKEND\n", ctx.vid);
-		if (!in_buf) {
-			VHOST_IOCTL_RETRY(sizeof(file), 0);
-			break;
-		}
-		file = *(const struct vhost_vring_file *)in_buf;
-		result = cuse_set_backend(ctx, &file);
-		fuse_reply_ioctl(req, result, NULL, 0);
-		break;
-
-	case VHOST_GET_FEATURES:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_GET_FEATURES\n", vid);
-		VHOST_IOCTL_W(uint64_t, features, vhost_get_features);
-		break;
-
-	case VHOST_SET_FEATURES:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_SET_FEATURES\n", vid);
-		VHOST_IOCTL_R(uint64_t, features, vhost_set_features);
-		break;
-
-	case VHOST_RESET_OWNER:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_RESET_OWNER\n", vid);
-		VHOST_IOCTL(vhost_reset_owner);
-		break;
-
-	case VHOST_SET_OWNER:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_SET_OWNER\n", vid);
-		VHOST_IOCTL(vhost_set_owner);
-		break;
-
-	case VHOST_SET_MEM_TABLE:
-		/*TODO fix race condition.*/
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_SET_MEM_TABLE\n", vid);
-		static struct vhost_memory mem_temp;
-
-		switch (in_bufsz) {
-		case 0:
-			VHOST_IOCTL_RETRY(sizeof(struct vhost_memory), 0);
-			break;
-
-		case sizeof(struct vhost_memory):
-			mem_temp = *(const struct vhost_memory *) in_buf;
-
-			if (mem_temp.nregions > 0) {
-				VHOST_IOCTL_RETRY(sizeof(struct vhost_memory) +
-					(sizeof(struct vhost_memory_region) *
-						mem_temp.nregions), 0);
-			} else {
-				result = -1;
-				fuse_reply_ioctl(req, result, NULL, 0);
-			}
-			break;
-
-		default:
-			result = cuse_set_mem_table(ctx, in_buf,
-				mem_temp.nregions);
-			if (result)
-				fuse_reply_err(req, EINVAL);
-			else
-				fuse_reply_ioctl(req, result, NULL, 0);
-		}
-		break;
-
-	case VHOST_SET_VRING_NUM:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_SET_VRING_NUM\n", vid);
-		VHOST_IOCTL_R(struct vhost_vring_state, state,
-			vhost_set_vring_num);
-		break;
-
-	case VHOST_SET_VRING_BASE:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_SET_VRING_BASE\n", vid);
-		VHOST_IOCTL_R(struct vhost_vring_state, state,
-			vhost_set_vring_base);
-		break;
-
-	case VHOST_GET_VRING_BASE:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_GET_VRING_BASE\n", vid);
-		VHOST_IOCTL_RW(uint32_t, index,
-			struct vhost_vring_state, state, vhost_get_vring_base);
-		break;
-
-	case VHOST_SET_VRING_ADDR:
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: VHOST_SET_VRING_ADDR\n", vid);
-		VHOST_IOCTL_R(struct vhost_vring_addr, addr,
-			vhost_set_vring_addr);
-		break;
-
-	case VHOST_SET_VRING_KICK:
-	case VHOST_SET_VRING_CALL:
-		if (cmd == VHOST_SET_VRING_KICK)
-			LOG_DEBUG(VHOST_CONFIG,
-				"(%d) IOCTL: VHOST_SET_VRING_KICK\n", vid);
-		else
-			LOG_DEBUG(VHOST_CONFIG,
-				"(%d) IOCTL: VHOST_SET_VRING_CALL\n", vid);
-		if (!in_buf)
-			VHOST_IOCTL_RETRY(sizeof(struct vhost_vring_file), 0);
-		else {
-			int fd;
-			file = *(const struct vhost_vring_file *)in_buf;
-			LOG_DEBUG(VHOST_CONFIG,
-				"idx:%d fd:%d\n", file.index, file.fd);
-			fd = eventfd_copy(file.fd, ctx.pid);
-			if (fd < 0) {
-				fuse_reply_ioctl(req, -1, NULL, 0);
-				result = -1;
-				break;
-			}
-			file.fd = fd;
-			if (cmd == VHOST_SET_VRING_KICK) {
-				result = vhost_set_vring_kick(vid, &file);
-				fuse_reply_ioctl(req, result, NULL, 0);
-			} else {
-				result = vhost_set_vring_call(vid, &file);
-				fuse_reply_ioctl(req, result, NULL, 0);
-			}
-		}
-		break;
-
-	default:
-		RTE_LOG(ERR, VHOST_CONFIG,
-			"(%d) IOCTL: DOESN NOT EXIST\n", vid);
-		result = -1;
-		fuse_reply_ioctl(req, result, NULL, 0);
-	}
-
-	if (result < 0)
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: FAIL\n", vid);
-	else
-		LOG_DEBUG(VHOST_CONFIG,
-			"(%d) IOCTL: SUCCESS\n", vid);
-}
-
-/*
- * Structure handling open, release and ioctl function pointers is populated.
- */
-static const struct cuse_lowlevel_ops vhost_net_ops = {
-	.open		= vhost_net_open,
-	.release	= vhost_net_release,
-	.ioctl		= vhost_net_ioctl,
-};
-
-/*
- * cuse_info is populated and used to register the cuse device.
- * vhost_net_device_ops are also passed when the device is registered in app.
- */
-int
-rte_vhost_driver_register(const char *dev_name, uint64_t flags)
-{
-	struct cuse_info cuse_info;
-	char device_name[PATH_MAX] = "";
-	char char_device_name[PATH_MAX] = "";
-	const char *device_argv[] = { device_name };
-
-	char fuse_opt_dummy[] = FUSE_OPT_DUMMY;
-	char fuse_opt_fore[] = FUSE_OPT_FORE;
-	char fuse_opt_nomulti[] = FUSE_OPT_NOMULTI;
-	char *fuse_argv[] = {fuse_opt_dummy, fuse_opt_fore, fuse_opt_nomulti};
-
-	if (flags) {
-		RTE_LOG(ERR, VHOST_CONFIG,
-			"vhost-cuse does not support any flags so far\n");
-		return -1;
-	}
-
-	if (access(cuse_device_name, R_OK | W_OK) < 0) {
-		RTE_LOG(ERR, VHOST_CONFIG,
-			"char device %s can't be accessed, maybe not exist\n",
-			cuse_device_name);
-		return -1;
-	}
-
-	if (eventfd_init() < 0)
-		return -1;
-
-	/*
-	 * The device name is created. This is passed to QEMU so that it can
-	 * register the device with our application.
-	 */
-	snprintf(device_name, PATH_MAX, "DEVNAME=%s", dev_name);
-	snprintf(char_device_name, PATH_MAX, "/dev/%s", dev_name);
-
-	/* Check if device already exists. */
-	if (access(char_device_name, F_OK) != -1) {
-		RTE_LOG(ERR, VHOST_CONFIG,
-			"char device %s already exists\n", char_device_name);
-		return -1;
-	}
-
-	memset(&cuse_info, 0, sizeof(cuse_info));
-	cuse_info.dev_major = default_major;
-	cuse_info.dev_minor = default_minor;
-	cuse_info.dev_info_argc = 1;
-	cuse_info.dev_info_argv = device_argv;
-	cuse_info.flags = CUSE_UNRESTRICTED_IOCTL;
-
-	session = cuse_lowlevel_setup(3, fuse_argv,
-			&cuse_info, &vhost_net_ops, 0, NULL);
-	if (session == NULL)
-		return -1;
-
-	return 0;
-}
-
-/**
- * An empty function for unregister
- */
-int
-rte_vhost_driver_unregister(const char *dev_name __rte_unused)
-{
-	return 0;
-}
-
-/**
- * The CUSE session is launched allowing the application to receive open,
- * release and ioctl calls.
- */
-int
-rte_vhost_driver_session_start(void)
-{
-	fuse_session_loop(session);
-
-	return 0;
-}