#include "vhost-net-cdev.h"
-#define FUSE_OPT_DUMMY "\0\0"
-#define FUSE_OPT_FORE "-f\0\0"
-#define FUSE_OPT_NOMULTI "-s\0\0"
+#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 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;
-static struct vhost_net_device_ops const *ops;
+static struct fuse_session *session;
+static struct vhost_net_device_ops const *ops;
/*
- * Returns vhost_device_ctx from given fuse_req_t. The index is populated later when
- * the device is added to the device linked list.
+ * Returns vhost_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_device_ctx
fuse_req_to_vhost_ctx(fuse_req_t req, struct fuse_file_info *fi)
}
/*
- * When the device is created in QEMU it gets initialised here and added to the device linked list.
+ * 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)
fi->fh = err;
- RTE_LOG(INFO, VHOST_CONFIG, "(%"PRIu64") Device configuration started\n", fi->fh);
+ RTE_LOG(INFO, VHOST_CONFIG,
+ "(%"PRIu64") Device configuration started\n", fi->fh);
fuse_reply_open(req, fi);
}
* Boilerplate code for CUSE IOCTL
* Implicit arguments: ctx, req, result.
*/
-#define VHOST_IOCTL(func) do { \
- result = (func)(ctx); \
+#define VHOST_IOCTL(func) do { \
+ result = (func)(ctx); \
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); \
+#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: ctx, 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(ctx, &(var)); \
- fuse_reply_ioctl(req, result, NULL, 0); \
- } \
+#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(ctx, &(var)); \
+ fuse_reply_ioctl(req, result, NULL, 0);\
+ } \
} while (0)
/*
- * Boilerplate code for CUSE Write IOCTL
+ * Boilerplate code for CUSE Write IOCTL
* Implicit arguments: ctx, req, result, out_bufsz.
*/
-#define VHOST_IOCTL_W(type, var, func) do { \
- if (!out_bufsz) { \
- VHOST_IOCTL_RETRY(0, sizeof(type)); \
- } else { \
- result = (func)(ctx, &(var)); \
- fuse_reply_ioctl(req, result, &(var), sizeof(type)); \
- } \
+#define VHOST_IOCTL_W(type, var, func) do { \
+ if (!out_bufsz) { \
+ VHOST_IOCTL_RETRY(0, sizeof(type));\
+ } else { \
+ result = (func)(ctx, &(var));\
+ fuse_reply_ioctl(req, result, &(var), sizeof(type));\
+ } \
} while (0)
/*
* Boilerplate code for CUSE Read/Write IOCTL
* Implicit arguments: ctx, 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)(ctx, (var1), &(var2)); \
- fuse_reply_ioctl(req, result, &(var2), sizeof(type2)); \
- } \
+#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)(ctx, (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.
+ * 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,
switch (cmd) {
case VHOST_NET_SET_BACKEND:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_NET_SET_BACKEND\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_NET_SET_BACKEND\n", ctx.fh);
VHOST_IOCTL_R(struct vhost_vring_file, file, ops->set_backend);
break;
case VHOST_GET_FEATURES:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_GET_FEATURES\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_GET_FEATURES\n", ctx.fh);
VHOST_IOCTL_W(uint64_t, features, ops->get_features);
break;
case VHOST_SET_FEATURES:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_SET_FEATURES\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_FEATURES\n", ctx.fh);
VHOST_IOCTL_R(uint64_t, features, ops->set_features);
break;
case VHOST_RESET_OWNER:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_RESET_OWNER\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_RESET_OWNER\n", ctx.fh);
VHOST_IOCTL(ops->reset_owner);
break;
case VHOST_SET_OWNER:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_SET_OWNER\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_OWNER\n", ctx.fh);
VHOST_IOCTL(ops->set_owner);
break;
case VHOST_SET_MEM_TABLE:
/*TODO fix race condition.*/
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_SET_MEM_TABLE\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_MEM_TABLE\n", ctx.fh);
static struct vhost_memory mem_temp;
switch (in_bufsz) {
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);
+ 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 = ops->set_mem_table(ctx, in_buf, mem_temp.nregions);
+ result = ops->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, "(%"PRIu64") IOCTL: VHOST_SET_VRING_NUM\n", ctx.fh);
- VHOST_IOCTL_R(struct vhost_vring_state, state, ops->set_vring_num);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_VRING_NUM\n", ctx.fh);
+ VHOST_IOCTL_R(struct vhost_vring_state, state,
+ ops->set_vring_num);
break;
case VHOST_SET_VRING_BASE:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_SET_VRING_BASE\n", ctx.fh);
- VHOST_IOCTL_R(struct vhost_vring_state, state, ops->set_vring_base);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_VRING_BASE\n", ctx.fh);
+ VHOST_IOCTL_R(struct vhost_vring_state, state,
+ ops->set_vring_base);
break;
case VHOST_GET_VRING_BASE:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_GET_VRING_BASE\n", ctx.fh);
- VHOST_IOCTL_RW(uint32_t, index, struct vhost_vring_state, state, ops->get_vring_base);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_GET_VRING_BASE\n", ctx.fh);
+ VHOST_IOCTL_RW(uint32_t, index,
+ struct vhost_vring_state, state, ops->get_vring_base);
break;
case VHOST_SET_VRING_ADDR:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_SET_VRING_ADDR\n", ctx.fh);
- VHOST_IOCTL_R(struct vhost_vring_addr, addr, ops->set_vring_addr);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_VRING_ADDR\n", ctx.fh);
+ VHOST_IOCTL_R(struct vhost_vring_addr, addr,
+ ops->set_vring_addr);
break;
case VHOST_SET_VRING_KICK:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_SET_VRING_KICK\n", ctx.fh);
- VHOST_IOCTL_R(struct vhost_vring_file, file, ops->set_vring_kick);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_VRING_KICK\n", ctx.fh);
+ VHOST_IOCTL_R(struct vhost_vring_file, file,
+ ops->set_vring_kick);
break;
case VHOST_SET_VRING_CALL:
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: VHOST_SET_VRING_CALL\n", ctx.fh);
- VHOST_IOCTL_R(struct vhost_vring_file, file, ops->set_vring_call);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: VHOST_SET_VRING_CALL\n", ctx.fh);
+ VHOST_IOCTL_R(struct vhost_vring_file, file,
+ ops->set_vring_call);
break;
default:
- RTE_LOG(ERR, VHOST_CONFIG, "(%"PRIu64") IOCTL: DOESN NOT EXIST\n", ctx.fh);
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: DOESN NOT EXIST\n", ctx.fh);
result = -1;
fuse_reply_ioctl(req, result, NULL, 0);
}
if (result < 0)
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: FAIL\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: FAIL\n", ctx.fh);
else
- LOG_DEBUG(VHOST_CONFIG, "(%"PRIu64") IOCTL: SUCCESS\n", ctx.fh);
+ LOG_DEBUG(VHOST_CONFIG,
+ "(%"PRIu64") IOCTL: SUCCESS\n", ctx.fh);
}
/*
};
/*
- * cuse_info is populated and used to register the cuse device. vhost_net_device_ops are
- * also passed when the device is registered in main.c.
+ * 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)
char *fuse_argv[] = {fuse_opt_dummy, fuse_opt_fore, fuse_opt_nomulti};
if (access(cuse_device_name, R_OK | W_OK) < 0) {
- RTE_LOG(ERR, VHOST_CONFIG, "Character device %s can't be accessed, maybe not exist\n", cuse_device_name);
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "char device %s can't be accessed, maybe not exist\n",
+ cuse_device_name);
return -1;
}
/*
- * The device name is created. This is passed to QEMU so that it can register
- * the device with our application.
+ * 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, "Character device %s already exists\n", char_device_name);
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "char device %s already exists\n", char_device_name);
return -1;
}
ops = get_virtio_net_callbacks();
session = cuse_lowlevel_setup(3, fuse_argv,
- &cuse_info, &vhost_net_ops, 0, NULL);
+ &cuse_info, &vhost_net_ops, 0, NULL);
if (session == NULL)
return -1;
}
/**
- * The CUSE session is launched allowing the application to receive open, release and ioctl calls.
+ * The CUSE session is launched allowing the application to receive open,
+ * release and ioctl calls.
*/
int
rte_vhost_driver_session_start(void)
git.droids-corp.org / dpdk.git / blobdiff