-/*
+/*
*------------------------------------------------------------------
* vhost.c - vhost-user
*
_(NONE, "no error") \
_(NOT_READY, "vhost user state error") \
_(PKT_DROP_NOBUF, "tx packet drops (no available descriptors)") \
- _(MMAP_FAIL, "mmap failure")
+ _(PKT_DROP_NOMRG, "tx packet drops (cannot merge descriptors)") \
+ _(MMAP_FAIL, "mmap failure") \
+ _(INDIRECT_OVERFLOW, "indirect descriptor table overflow")
-typedef enum {
+typedef enum
+{
#define _(f,s) VHOST_USER_TX_FUNC_ERROR_##f,
foreach_vhost_user_tx_func_error
#undef _
- VHOST_USER_TX_FUNC_N_ERROR,
+ VHOST_USER_TX_FUNC_N_ERROR,
} vhost_user_tx_func_error_t;
-static char * vhost_user_tx_func_error_strings[] = {
+static char *vhost_user_tx_func_error_strings[] = {
#define _(n,s) s,
- foreach_vhost_user_tx_func_error
+ foreach_vhost_user_tx_func_error
#undef _
};
_(NO_ERROR, "no error") \
_(NO_BUFFER, "no available buffer") \
_(MMAP_FAIL, "mmap failure") \
- _(UNDERSIZED_FRAME, "undersized ethernet frame received (< 14 bytes)")
+ _(INDIRECT_OVERFLOW, "indirect descriptor overflows table") \
+ _(UNDERSIZED_FRAME, "undersized ethernet frame received (< 14 bytes)") \
+ _(FULL_RX_QUEUE, "full rx queue (possible driver tx drop)")
-typedef enum {
+typedef enum
+{
#define _(f,s) VHOST_USER_INPUT_FUNC_ERROR_##f,
foreach_vhost_user_input_func_error
#undef _
- VHOST_USER_INPUT_FUNC_N_ERROR,
+ VHOST_USER_INPUT_FUNC_N_ERROR,
} vhost_user_input_func_error_t;
-static char * vhost_user_input_func_error_strings[] = {
+static char *vhost_user_input_func_error_strings[] = {
#define _(n,s) s,
- foreach_vhost_user_input_func_error
+ foreach_vhost_user_input_func_error
#undef _
};
+/* *INDENT-OFF* */
static vhost_user_main_t vhost_user_main = {
.mtu_bytes = 1518,
};
VNET_HW_INTERFACE_CLASS (vhost_interface_class, static) = {
.name = "vhost-user",
};
+/* *INDENT-ON* */
-static u8 * format_vhost_user_interface_name (u8 * s, va_list * args)
+static u8 *
+format_vhost_user_interface_name (u8 * s, va_list * args)
{
u32 i = va_arg (*args, u32);
u32 show_dev_instance = ~0;
- vhost_user_main_t * vum = &vhost_user_main;
+ vhost_user_main_t *vum = &vhost_user_main;
if (i < vec_len (vum->show_dev_instance_by_real_dev_instance))
show_dev_instance = vum->show_dev_instance_by_real_dev_instance[i];
return s;
}
-static int vhost_user_name_renumber (vnet_hw_interface_t * hi,
- u32 new_dev_instance)
+static int
+vhost_user_name_renumber (vnet_hw_interface_t * hi, u32 new_dev_instance)
{
- vhost_user_main_t * vum = &vhost_user_main;
+ vhost_user_main_t *vum = &vhost_user_main;
vec_validate_init_empty (vum->show_dev_instance_by_real_dev_instance,
- hi->dev_instance, ~0);
+ hi->dev_instance, ~0);
- vum->show_dev_instance_by_real_dev_instance [hi->dev_instance] =
+ vum->show_dev_instance_by_real_dev_instance[hi->dev_instance] =
new_dev_instance;
- DBG_SOCK("renumbered vhost-user interface dev_instance %d to %d",
- hi->dev_instance, new_dev_instance);
+ DBG_SOCK ("renumbered vhost-user interface dev_instance %d to %d",
+ hi->dev_instance, new_dev_instance);
return 0;
}
-static inline void * map_guest_mem(vhost_user_intf_t * vui, u64 addr)
+static inline void *
+map_guest_mem (vhost_user_intf_t * vui, uword addr)
{
int i;
- for (i=0; i<vui->nregions; i++) {
- if ((vui->regions[i].guest_phys_addr <= addr) &&
- ((vui->regions[i].guest_phys_addr + vui->regions[i].memory_size) > addr)) {
- return (void *) (vui->region_mmap_addr[i] + addr - vui->regions[i].guest_phys_addr);
- }
- }
- DBG_VQ("failed to map guest mem addr %llx", addr);
+ for (i = 0; i < vui->nregions; i++)
+ {
+ if ((vui->regions[i].guest_phys_addr <= addr) &&
+ ((vui->regions[i].guest_phys_addr + vui->regions[i].memory_size) >
+ addr))
+ {
+ return (void *) (vui->region_mmap_addr[i] + addr -
+ vui->regions[i].guest_phys_addr);
+ }
+ }
+ DBG_VQ ("failed to map guest mem addr %llx", addr);
return 0;
}
-static inline void * map_user_mem(vhost_user_intf_t * vui, u64 addr)
+static inline void *
+map_user_mem (vhost_user_intf_t * vui, uword addr)
{
int i;
- for (i=0; i<vui->nregions; i++) {
- if ((vui->regions[i].userspace_addr <= addr) &&
- ((vui->regions[i].userspace_addr + vui->regions[i].memory_size) > addr)) {
- return (void *) (vui->region_mmap_addr[i] + addr - vui->regions[i].userspace_addr);
- }
- }
+ for (i = 0; i < vui->nregions; i++)
+ {
+ if ((vui->regions[i].userspace_addr <= addr) &&
+ ((vui->regions[i].userspace_addr + vui->regions[i].memory_size) >
+ addr))
+ {
+ return (void *) (vui->region_mmap_addr[i] + addr -
+ vui->regions[i].userspace_addr);
+ }
+ }
return 0;
}
-static long get_huge_page_size(int fd)
+static long
+get_huge_page_size (int fd)
{
struct statfs s;
- fstatfs(fd, &s);
+ fstatfs (fd, &s);
return s.f_bsize;
}
-static void unmap_all_mem_regions(vhost_user_intf_t * vui)
+static void
+unmap_all_mem_regions (vhost_user_intf_t * vui)
{
- int i,r;
- for (i=0; i<vui->nregions; i++) {
- if (vui->region_mmap_addr[i] != (void *) -1) {
+ int i, r;
+ for (i = 0; i < vui->nregions; i++)
+ {
+ if (vui->region_mmap_addr[i] != (void *) -1)
+ {
- long page_sz = get_huge_page_size(vui->region_mmap_fd[i]);
+ long page_sz = get_huge_page_size (vui->region_mmap_fd[i]);
- ssize_t map_sz = (vui->regions[i].memory_size +
- vui->regions[i].mmap_offset + page_sz) & ~(page_sz - 1);
+ ssize_t map_sz = (vui->regions[i].memory_size +
+ vui->regions[i].mmap_offset +
+ page_sz) & ~(page_sz - 1);
- r = munmap(vui->region_mmap_addr[i] - vui->regions[i].mmap_offset, map_sz);
+ r =
+ munmap (vui->region_mmap_addr[i] - vui->regions[i].mmap_offset,
+ map_sz);
- DBG_SOCK("unmap memory region %d addr 0x%lx len 0x%lx page_sz 0x%x", i,
- vui->region_mmap_addr[i], map_sz, page_sz);
+ DBG_SOCK
+ ("unmap memory region %d addr 0x%lx len 0x%lx page_sz 0x%x", i,
+ vui->region_mmap_addr[i], map_sz, page_sz);
- vui->region_mmap_addr[i]= (void *) -1;
+ vui->region_mmap_addr[i] = (void *) -1;
- if (r == -1) {
- clib_warning("failed to unmap memory region (errno %d)", errno);
- }
- close(vui->region_mmap_fd[i]);
+ if (r == -1)
+ {
+ clib_warning ("failed to unmap memory region (errno %d)",
+ errno);
+ }
+ close (vui->region_mmap_fd[i]);
+ }
}
- }
vui->nregions = 0;
}
-static clib_error_t * vhost_user_callfd_read_ready (unix_file_t * uf)
+static clib_error_t *
+vhost_user_callfd_read_ready (unix_file_t * uf)
{
- __attribute__((unused)) int n;
+ __attribute__ ((unused)) int n;
u8 buff[8];
- n = read(uf->file_descriptor, ((char*)&buff), 8);
+ n = read (uf->file_descriptor, ((char *) &buff), 8);
return 0;
}
-static inline void vhost_user_if_disconnect(vhost_user_intf_t * vui)
+static inline void
+vhost_user_if_disconnect (vhost_user_intf_t * vui)
{
- vhost_user_main_t * vum = &vhost_user_main;
- vnet_main_t * vnm = vnet_get_main();
+ vhost_user_main_t *vum = &vhost_user_main;
+ vnet_main_t *vnm = vnet_get_main ();
int q;
- vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
+ vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
- if (vui->unix_file_index != ~0) {
+ if (vui->unix_file_index != ~0)
+ {
unix_file_del (&unix_main, unix_main.file_pool + vui->unix_file_index);
vui->unix_file_index = ~0;
- }
+ }
- hash_unset(vum->vhost_user_interface_index_by_sock_fd, vui->unix_fd);
- hash_unset(vum->vhost_user_interface_index_by_listener_fd, vui->unix_fd);
- close(vui->unix_fd);
+ hash_unset (vum->vhost_user_interface_index_by_sock_fd, vui->unix_fd);
+ hash_unset (vum->vhost_user_interface_index_by_listener_fd, vui->unix_fd);
+ close (vui->unix_fd);
vui->unix_fd = -1;
vui->is_up = 0;
- for (q = 0; q < vui->num_vrings; q++) {
- vui->vrings[q].desc = NULL;
- vui->vrings[q].avail = NULL;
- vui->vrings[q].used = NULL;
- }
+ for (q = 0; q < vui->num_vrings; q++)
+ {
+ vui->vrings[q].desc = NULL;
+ vui->vrings[q].avail = NULL;
+ vui->vrings[q].used = NULL;
+ vui->vrings[q].log_guest_addr = 0;
+ vui->vrings[q].log_used = 0;
+ }
- unmap_all_mem_regions(vui);
- DBG_SOCK("interface ifindex %d disconnected", vui->sw_if_index);
+ unmap_all_mem_regions (vui);
+ DBG_SOCK ("interface ifindex %d disconnected", vui->sw_if_index);
}
-static clib_error_t * vhost_user_socket_read (unix_file_t * uf)
+#define VHOST_LOG_PAGE 0x1000
+always_inline void
+vhost_user_log_dirty_pages (vhost_user_intf_t * vui, u64 addr, u64 len)
+{
+ if (PREDICT_TRUE (vui->log_base_addr == 0
+ || !(vui->features & (1 << FEAT_VHOST_F_LOG_ALL))))
+ {
+ return;
+ }
+ if (PREDICT_FALSE ((addr + len - 1) / VHOST_LOG_PAGE / 8 >= vui->log_size))
+ {
+ DBG_SOCK ("vhost_user_log_dirty_pages(): out of range\n");
+ return;
+ }
+
+ CLIB_MEMORY_BARRIER ();
+ u64 page = addr / VHOST_LOG_PAGE;
+ while (page * VHOST_LOG_PAGE < addr + len)
+ {
+ ((u8 *) vui->log_base_addr)[page / 8] |= 1 << page % 8;
+ page++;
+ }
+}
+
+#define vhost_user_log_dirty_ring(vui, vq, member) \
+ if (PREDICT_FALSE(vq->log_used)) { \
+ vhost_user_log_dirty_pages(vui, vq->log_guest_addr + STRUCT_OFFSET_OF(vring_used_t, member), \
+ sizeof(vq->used->member)); \
+ }
+
+static clib_error_t *
+vhost_user_socket_read (unix_file_t * uf)
{
int n, i;
int fd, number_of_fds = 0;
vhost_user_msg_t msg;
struct msghdr mh;
struct iovec iov[1];
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
struct cmsghdr *cmsg;
- uword * p;
+ uword *p;
u8 q;
- unix_file_t template = {0};
- vnet_main_t * vnm = vnet_get_main();
+ unix_file_t template = { 0 };
+ vnet_main_t *vnm = vnet_get_main ();
p = hash_get (vum->vhost_user_interface_index_by_sock_fd,
- uf->file_descriptor);
- if (p == 0) {
- DBG_SOCK ("FD %d doesn't belong to any interface",
- uf->file_descriptor);
+ uf->file_descriptor);
+ if (p == 0)
+ {
+ DBG_SOCK ("FD %d doesn't belong to any interface", uf->file_descriptor);
return 0;
}
else
vui = vec_elt_at_index (vum->vhost_user_interfaces, p[0]);
- char control[CMSG_SPACE(VHOST_MEMORY_MAX_NREGIONS * sizeof(int))];
+ char control[CMSG_SPACE (VHOST_MEMORY_MAX_NREGIONS * sizeof (int))];
+
+ memset (&mh, 0, sizeof (mh));
+ memset (control, 0, sizeof (control));
- memset(&mh, 0, sizeof(mh));
- memset(control, 0, sizeof(control));
+ for (i = 0; i < VHOST_MEMORY_MAX_NREGIONS; i++)
+ fds[i] = -1;
/* set the payload */
iov[0].iov_base = (void *) &msg;
mh.msg_iov = iov;
mh.msg_iovlen = 1;
mh.msg_control = control;
- mh.msg_controllen = sizeof(control);
+ mh.msg_controllen = sizeof (control);
- n = recvmsg(uf->file_descriptor, &mh, 0);
+ n = recvmsg (uf->file_descriptor, &mh, 0);
if (n != VHOST_USER_MSG_HDR_SZ)
goto close_socket;
- if (mh.msg_flags & MSG_CTRUNC) {
- goto close_socket;
- }
+ if (mh.msg_flags & MSG_CTRUNC)
+ {
+ goto close_socket;
+ }
- cmsg = CMSG_FIRSTHDR(&mh);
+ cmsg = CMSG_FIRSTHDR (&mh);
if (cmsg && (cmsg->cmsg_len > 0) && (cmsg->cmsg_level == SOL_SOCKET) &&
(cmsg->cmsg_type == SCM_RIGHTS) &&
- (cmsg->cmsg_len - CMSG_LEN(0) <= VHOST_MEMORY_MAX_NREGIONS * sizeof(int))) {
- number_of_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
- memcpy(fds, CMSG_DATA(cmsg), number_of_fds * sizeof(int));
- }
+ (cmsg->cmsg_len - CMSG_LEN (0) <=
+ VHOST_MEMORY_MAX_NREGIONS * sizeof (int)))
+ {
+ number_of_fds = (cmsg->cmsg_len - CMSG_LEN (0)) / sizeof (int);
+ clib_memcpy (fds, CMSG_DATA (cmsg), number_of_fds * sizeof (int));
+ }
- /* version 1, no reply bit set*/
- if ((msg.flags & 7) != 1) {
- DBG_SOCK("malformed message received. closing socket");
- goto close_socket;
- }
+ /* version 1, no reply bit set */
+ if ((msg.flags & 7) != 1)
+ {
+ DBG_SOCK ("malformed message received. closing socket");
+ goto close_socket;
+ }
{
- int rv __attribute__((unused));
- /* $$$$ pay attention to rv */
- rv = read(uf->file_descriptor, ((char*)&msg) + n, msg.size);
+ int rv __attribute__ ((unused));
+ /* $$$$ pay attention to rv */
+ rv = read (uf->file_descriptor, ((char *) &msg) + n, msg.size);
}
- switch (msg.request) {
+ switch (msg.request)
+ {
case VHOST_USER_GET_FEATURES:
- DBG_SOCK("if %d msg VHOST_USER_GET_FEATURES",
- vui->hw_if_index);
+ DBG_SOCK ("if %d msg VHOST_USER_GET_FEATURES", vui->hw_if_index);
msg.flags |= 4;
msg.u64 = (1 << FEAT_VIRTIO_NET_F_MRG_RXBUF) |
- (1 << FEAT_VIRTIO_F_ANY_LAYOUT);
+ (1 << FEAT_VIRTIO_F_ANY_LAYOUT) |
+ (1 << FEAT_VIRTIO_F_INDIRECT_DESC) |
+ (1 << FEAT_VHOST_F_LOG_ALL) |
+ (1 << FEAT_VIRTIO_NET_F_GUEST_ANNOUNCE) |
+ (1 << FEAT_VHOST_USER_F_PROTOCOL_FEATURES);
msg.u64 &= vui->feature_mask;
- msg.size = sizeof(msg.u64);
+ msg.size = sizeof (msg.u64);
break;
case VHOST_USER_SET_FEATURES:
- DBG_SOCK("if %d msg VHOST_USER_SET_FEATURES features 0x%016llx",
- vui->hw_if_index, msg.u64);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_FEATURES features 0x%016llx",
+ vui->hw_if_index, msg.u64);
vui->features = msg.u64;
+
if (vui->features & (1 << FEAT_VIRTIO_NET_F_MRG_RXBUF))
- vui->virtio_net_hdr_sz = 12;
+ vui->virtio_net_hdr_sz = 12;
else
- vui->virtio_net_hdr_sz = 10;
+ vui->virtio_net_hdr_sz = 10;
- vui->is_any_layout = (vui->features & (1 << FEAT_VIRTIO_F_ANY_LAYOUT)) ? 1 : 0;
+ vui->is_any_layout =
+ (vui->features & (1 << FEAT_VIRTIO_F_ANY_LAYOUT)) ? 1 : 0;
ASSERT (vui->virtio_net_hdr_sz < VLIB_BUFFER_PRE_DATA_SIZE);
- vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
+ vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
vui->is_up = 0;
- for (q = 0; q < 2; q++) {
- vui->vrings[q].desc = 0;
- vui->vrings[q].avail = 0;
- vui->vrings[q].used = 0;
- }
+ for (q = 0; q < 2; q++)
+ {
+ vui->vrings[q].desc = 0;
+ vui->vrings[q].avail = 0;
+ vui->vrings[q].used = 0;
+ vui->vrings[q].log_guest_addr = 0;
+ vui->vrings[q].log_used = 0;
+ }
- DBG_SOCK("interface %d disconnected", vui->sw_if_index);
+ DBG_SOCK ("interface %d disconnected", vui->sw_if_index);
break;
case VHOST_USER_SET_MEM_TABLE:
- DBG_SOCK("if %d msg VHOST_USER_SET_MEM_TABLE nregions %d",
- vui->hw_if_index, msg.memory.nregions);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_MEM_TABLE nregions %d",
+ vui->hw_if_index, msg.memory.nregions);
if ((msg.memory.nregions < 1) ||
- (msg.memory.nregions > VHOST_MEMORY_MAX_NREGIONS)) {
-
- DBG_SOCK("number of mem regions must be between 1 and %i",
- VHOST_MEMORY_MAX_NREGIONS);
-
- goto close_socket;
- }
-
- if (msg.memory.nregions != number_of_fds) {
- DBG_SOCK("each memory region must have FD");
- goto close_socket;
- }
- unmap_all_mem_regions(vui);
- for(i=0; i < msg.memory.nregions; i++) {
- memcpy(&(vui->regions[i]), &msg.memory.regions[i],
- sizeof(vhost_user_memory_region_t));
-
- long page_sz = get_huge_page_size(fds[i]);
-
- /* align size to 2M page */
- ssize_t map_sz = (vui->regions[i].memory_size +
- vui->regions[i].mmap_offset + page_sz) & ~(page_sz - 1);
-
- vui->region_mmap_addr[i] = mmap(0, map_sz, PROT_READ | PROT_WRITE,
- MAP_SHARED, fds[i], 0);
-
- DBG_SOCK("map memory region %d addr 0 len 0x%lx fd %d mapped 0x%lx "
- "page_sz 0x%x", i, map_sz, fds[i], vui->region_mmap_addr[i], page_sz);
-
- if (vui->region_mmap_addr[i] == MAP_FAILED) {
- clib_warning("failed to map memory. errno is %d", errno);
- goto close_socket;
- }
- vui->region_mmap_addr[i] += vui->regions[i].mmap_offset;
- vui->region_mmap_fd[i] = fds[i];
- }
+ (msg.memory.nregions > VHOST_MEMORY_MAX_NREGIONS))
+ {
+
+ DBG_SOCK ("number of mem regions must be between 1 and %i",
+ VHOST_MEMORY_MAX_NREGIONS);
+
+ goto close_socket;
+ }
+
+ if (msg.memory.nregions != number_of_fds)
+ {
+ DBG_SOCK ("each memory region must have FD");
+ goto close_socket;
+ }
+ unmap_all_mem_regions (vui);
+ for (i = 0; i < msg.memory.nregions; i++)
+ {
+ clib_memcpy (&(vui->regions[i]), &msg.memory.regions[i],
+ sizeof (vhost_user_memory_region_t));
+
+ long page_sz = get_huge_page_size (fds[i]);
+
+ /* align size to 2M page */
+ ssize_t map_sz = (vui->regions[i].memory_size +
+ vui->regions[i].mmap_offset +
+ page_sz) & ~(page_sz - 1);
+
+ vui->region_mmap_addr[i] = mmap (0, map_sz, PROT_READ | PROT_WRITE,
+ MAP_SHARED, fds[i], 0);
+
+ DBG_SOCK
+ ("map memory region %d addr 0 len 0x%lx fd %d mapped 0x%lx "
+ "page_sz 0x%x", i, map_sz, fds[i], vui->region_mmap_addr[i],
+ page_sz);
+
+ if (vui->region_mmap_addr[i] == MAP_FAILED)
+ {
+ clib_warning ("failed to map memory. errno is %d", errno);
+ goto close_socket;
+ }
+ vui->region_mmap_addr[i] += vui->regions[i].mmap_offset;
+ vui->region_mmap_fd[i] = fds[i];
+ }
vui->nregions = msg.memory.nregions;
break;
case VHOST_USER_SET_VRING_NUM:
- DBG_SOCK("if %d msg VHOST_USER_SET_VRING_NUM idx %d num %d",
- vui->hw_if_index, msg.state.index, msg.state.num);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_VRING_NUM idx %d num %d",
+ vui->hw_if_index, msg.state.index, msg.state.num);
- if ((msg.state.num > 32768) || /* maximum ring size is 32768 */
- (msg.state.num == 0) || /* it cannot be zero */
- (msg.state.num % 2)) /* must be power of 2 */
- goto close_socket;
+ if ((msg.state.num > 32768) || /* maximum ring size is 32768 */
+ (msg.state.num == 0) || /* it cannot be zero */
+ (msg.state.num % 2)) /* must be power of 2 */
+ goto close_socket;
vui->vrings[msg.state.index].qsz = msg.state.num;
break;
case VHOST_USER_SET_VRING_ADDR:
- DBG_SOCK("if %d msg VHOST_USER_SET_VRING_ADDR idx %d",
- vui->hw_if_index, msg.state.index);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_VRING_ADDR idx %d",
+ vui->hw_if_index, msg.state.index);
- vui->vrings[msg.state.index].desc = (vring_desc_t *)
- map_user_mem(vui, msg.addr.desc_user_addr);
+ vui->vrings[msg.state.index].desc = (vring_desc_t *)
+ map_user_mem (vui, msg.addr.desc_user_addr);
vui->vrings[msg.state.index].used = (vring_used_t *)
- map_user_mem(vui, msg.addr.used_user_addr);
+ map_user_mem (vui, msg.addr.used_user_addr);
vui->vrings[msg.state.index].avail = (vring_avail_t *)
- map_user_mem(vui, msg.addr.avail_user_addr);
+ map_user_mem (vui, msg.addr.avail_user_addr);
if ((vui->vrings[msg.state.index].desc == NULL) ||
- (vui->vrings[msg.state.index].used == NULL) ||
- (vui->vrings[msg.state.index].avail == NULL)) {
- DBG_SOCK("failed to map user memory for hw_if_index %d",
- vui->hw_if_index);
- goto close_socket;
- }
+ (vui->vrings[msg.state.index].used == NULL) ||
+ (vui->vrings[msg.state.index].avail == NULL))
+ {
+ DBG_SOCK ("failed to map user memory for hw_if_index %d",
+ vui->hw_if_index);
+ goto close_socket;
+ }
+
+ vui->vrings[msg.state.index].log_guest_addr = msg.addr.log_guest_addr;
+ vui->vrings[msg.state.index].log_used =
+ (msg.addr.flags & (1 << VHOST_VRING_F_LOG)) ? 1 : 0;
+
+ /* Spec says: If VHOST_USER_F_PROTOCOL_FEATURES has not been negotiated,
+ the ring is initialized in an enabled state. */
+
+ if (!(vui->features & (1 << FEAT_VHOST_USER_F_PROTOCOL_FEATURES)))
+ {
+ vui->vrings[msg.state.index].enabled = 1;
+ }
vui->vrings[msg.state.index].last_used_idx =
- vui->vrings[msg.state.index].used->idx;
+ vui->vrings[msg.state.index].used->idx;
/* tell driver that we don't want interrupts */
vui->vrings[msg.state.index].used->flags |= 1;
break;
case VHOST_USER_SET_OWNER:
- DBG_SOCK("if %d msg VHOST_USER_SET_OWNER",
- vui->hw_if_index);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_OWNER", vui->hw_if_index);
break;
case VHOST_USER_RESET_OWNER:
- DBG_SOCK("if %d msg VHOST_USER_RESET_OWNER",
- vui->hw_if_index);
+ DBG_SOCK ("if %d msg VHOST_USER_RESET_OWNER", vui->hw_if_index);
break;
case VHOST_USER_SET_VRING_CALL:
- DBG_SOCK("if %d msg VHOST_USER_SET_VRING_CALL u64 %d",
- vui->hw_if_index, msg.u64);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_VRING_CALL u64 %d",
+ vui->hw_if_index, msg.u64);
q = (u8) (msg.u64 & 0xFF);
if (!(msg.u64 & 0x100))
- {
- if (number_of_fds != 1)
- goto close_socket;
-
- /* if there is old fd, delete it */
- if (vui->vrings[q].callfd) {
- unix_file_t * uf = pool_elt_at_index (unix_main.file_pool,
- vui->vrings[q].callfd_idx);
- unix_file_del (&unix_main, uf);
- }
- vui->vrings[q].callfd = fds[0];
- template.read_function = vhost_user_callfd_read_ready;
- template.file_descriptor = fds[0];
- vui->vrings[q].callfd_idx = unix_file_add (&unix_main, &template);
- }
+ {
+ if (number_of_fds != 1)
+ goto close_socket;
+
+ /* if there is old fd, delete it */
+ if (vui->vrings[q].callfd)
+ {
+ unix_file_t *uf = pool_elt_at_index (unix_main.file_pool,
+ vui->vrings[q].callfd_idx);
+ unix_file_del (&unix_main, uf);
+ }
+ vui->vrings[q].callfd = fds[0];
+ template.read_function = vhost_user_callfd_read_ready;
+ template.file_descriptor = fds[0];
+ vui->vrings[q].callfd_idx = unix_file_add (&unix_main, &template);
+ }
else
- vui->vrings[q].callfd = -1;
+ vui->vrings[q].callfd = -1;
break;
case VHOST_USER_SET_VRING_KICK:
- DBG_SOCK("if %d msg VHOST_USER_SET_VRING_KICK u64 %d",
- vui->hw_if_index, msg.u64);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_VRING_KICK u64 %d",
+ vui->hw_if_index, msg.u64);
q = (u8) (msg.u64 & 0xFF);
if (!(msg.u64 & 0x100))
- {
- if (number_of_fds != 1)
- goto close_socket;
+ {
+ if (number_of_fds != 1)
+ goto close_socket;
- vui->vrings[q].kickfd = fds[0];
- }
+ vui->vrings[q].kickfd = fds[0];
+ }
else
- vui->vrings[q].kickfd = -1;
+ vui->vrings[q].kickfd = -1;
break;
case VHOST_USER_SET_VRING_ERR:
- DBG_SOCK("if %d msg VHOST_USER_SET_VRING_ERR u64 %d",
- vui->hw_if_index, msg.u64);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_VRING_ERR u64 %d",
+ vui->hw_if_index, msg.u64);
q = (u8) (msg.u64 & 0xFF);
if (!(msg.u64 & 0x100))
- {
- if (number_of_fds != 1)
- goto close_socket;
+ {
+ if (number_of_fds != 1)
+ goto close_socket;
- fd = fds[0];
- }
+ fd = fds[0];
+ }
else
- fd = -1;
+ fd = -1;
vui->vrings[q].errfd = fd;
break;
case VHOST_USER_SET_VRING_BASE:
- DBG_SOCK("if %d msg VHOST_USER_SET_VRING_BASE idx %d num %d",
- vui->hw_if_index, msg.state.index, msg.state.num);
+ DBG_SOCK ("if %d msg VHOST_USER_SET_VRING_BASE idx %d num %d",
+ vui->hw_if_index, msg.state.index, msg.state.num);
vui->vrings[msg.state.index].last_avail_idx = msg.state.num;
break;
case VHOST_USER_GET_VRING_BASE:
- DBG_SOCK("if %d msg VHOST_USER_GET_VRING_BASE idx %d num %d",
- vui->hw_if_index, msg.state.index, msg.state.num);
+ DBG_SOCK ("if %d msg VHOST_USER_GET_VRING_BASE idx %d num %d",
+ vui->hw_if_index, msg.state.index, msg.state.num);
+
+ /* Spec says: Client must [...] stop ring upon receiving VHOST_USER_GET_VRING_BASE. */
+ vui->vrings[msg.state.index].enabled = 0;
- msg.state.num = vui->vrings[msg.state.index].last_used_idx;
+ msg.state.num = vui->vrings[msg.state.index].last_avail_idx;
msg.flags |= 4;
- msg.size = sizeof(msg.state);
+ msg.size = sizeof (msg.state);
break;
case VHOST_USER_NONE:
- DBG_SOCK("if %d msg VHOST_USER_NONE",
- vui->hw_if_index);
+ DBG_SOCK ("if %d msg VHOST_USER_NONE", vui->hw_if_index);
break;
case VHOST_USER_SET_LOG_BASE:
- DBG_SOCK("if %d msg VHOST_USER_SET_LOG_BASE",
- vui->hw_if_index);
+ {
+ DBG_SOCK ("if %d msg VHOST_USER_SET_LOG_BASE", vui->hw_if_index);
+
+ if (msg.size != sizeof (msg.log))
+ {
+ DBG_SOCK
+ ("invalid msg size for VHOST_USER_SET_LOG_BASE: %d instead of %d",
+ msg.size, sizeof (msg.log));
+ goto close_socket;
+ }
+
+ if (!
+ (vui->protocol_features & (1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD)))
+ {
+ DBG_SOCK
+ ("VHOST_USER_PROTOCOL_F_LOG_SHMFD not set but VHOST_USER_SET_LOG_BASE received");
+ goto close_socket;
+ }
+
+ fd = fds[0];
+ /* align size to 2M page */
+ long page_sz = get_huge_page_size (fd);
+ ssize_t map_sz =
+ (msg.log.size + msg.log.offset + page_sz) & ~(page_sz - 1);
+
+ vui->log_base_addr = mmap (0, map_sz, PROT_READ | PROT_WRITE,
+ MAP_SHARED, fd, 0);
+
+ DBG_SOCK
+ ("map log region addr 0 len 0x%lx off 0x%lx fd %d mapped 0x%lx",
+ map_sz, msg.log.offset, fd, vui->log_base_addr);
+
+ if (vui->log_base_addr == MAP_FAILED)
+ {
+ clib_warning ("failed to map memory. errno is %d", errno);
+ goto close_socket;
+ }
+
+ vui->log_base_addr += msg.log.offset;
+ vui->log_size = msg.log.size;
+
+ msg.flags |= 4;
+ msg.size = sizeof (msg.u64);
+
+ break;
+ }
+
+ case VHOST_USER_SET_LOG_FD:
+ DBG_SOCK ("if %d msg VHOST_USER_SET_LOG_FD", vui->hw_if_index);
break;
- case VHOST_USER_SET_LOG_FD:
- DBG_SOCK("if %d msg VHOST_USER_SET_LOG_FD",
- vui->hw_if_index);
+ case VHOST_USER_GET_PROTOCOL_FEATURES:
+ DBG_SOCK ("if %d msg VHOST_USER_GET_PROTOCOL_FEATURES",
+ vui->hw_if_index);
+ msg.flags |= 4;
+ msg.u64 = (1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD);
+ msg.size = sizeof (msg.u64);
+ break;
+
+ case VHOST_USER_SET_PROTOCOL_FEATURES:
+ DBG_SOCK ("if %d msg VHOST_USER_SET_PROTOCOL_FEATURES features 0x%lx",
+ vui->hw_if_index, msg.u64);
+
+ vui->protocol_features = msg.u64;
+
+ break;
+
+ case VHOST_USER_SET_VRING_ENABLE:
+ DBG_SOCK ("if %d VHOST_USER_SET_VRING_ENABLE, enable: %d",
+ vui->hw_if_index, msg.state.num);
+ vui->vrings[msg.state.index].enabled = msg.state.num;
break;
default:
- DBG_SOCK("unknown vhost-user message %d received. closing socket",
- msg.request);
+ DBG_SOCK ("unknown vhost-user message %d received. closing socket",
+ msg.request);
goto close_socket;
- }
+ }
- /* if we have pointers to descriptor table, go up*/
+ /* if we have pointers to descriptor table, go up */
if (!vui->is_up &&
- vui->vrings[VHOST_NET_VRING_IDX_TX].desc &&
- vui->vrings[VHOST_NET_VRING_IDX_RX].desc) {
+ vui->vrings[VHOST_NET_VRING_IDX_TX].desc &&
+ vui->vrings[VHOST_NET_VRING_IDX_RX].desc)
+ {
- DBG_SOCK("interface %d connected", vui->sw_if_index);
+ DBG_SOCK ("interface %d connected", vui->sw_if_index);
- vnet_hw_interface_set_flags (vnm, vui->hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP);
+ vnet_hw_interface_set_flags (vnm, vui->hw_if_index,
+ VNET_HW_INTERFACE_FLAG_LINK_UP);
vui->is_up = 1;
- }
+ }
/* if we need to reply */
if (msg.flags & 4)
- {
- n = send(uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
+ {
+ n =
+ send (uf->file_descriptor, &msg, VHOST_USER_MSG_HDR_SZ + msg.size, 0);
if (n != (msg.size + VHOST_USER_MSG_HDR_SZ))
- goto close_socket;
- }
+ goto close_socket;
+ }
return 0;
close_socket:
- vhost_user_if_disconnect(vui);
+ vhost_user_if_disconnect (vui);
return 0;
}
-static clib_error_t * vhost_user_socket_error (unix_file_t * uf)
+static clib_error_t *
+vhost_user_socket_error (unix_file_t * uf)
{
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
- uword * p;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
+ uword *p;
p = hash_get (vum->vhost_user_interface_index_by_sock_fd,
- uf->file_descriptor);
- if (p == 0) {
- DBG_SOCK ("fd %d doesn't belong to any interface",
- uf->file_descriptor);
+ uf->file_descriptor);
+ if (p == 0)
+ {
+ DBG_SOCK ("fd %d doesn't belong to any interface", uf->file_descriptor);
return 0;
}
else
vui = vec_elt_at_index (vum->vhost_user_interfaces, p[0]);
- vhost_user_if_disconnect(vui);
+ vhost_user_if_disconnect (vui);
return 0;
}
-static clib_error_t * vhost_user_socksvr_accept_ready (unix_file_t * uf)
+static clib_error_t *
+vhost_user_socksvr_accept_ready (unix_file_t * uf)
{
int client_fd, client_len;
struct sockaddr_un client;
- unix_file_t template = {0};
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
- uword * p;
+ unix_file_t template = { 0 };
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
+ uword *p;
p = hash_get (vum->vhost_user_interface_index_by_listener_fd,
- uf->file_descriptor);
- if (p == 0) {
- DBG_SOCK ("fd %d doesn't belong to any interface",
- uf->file_descriptor);
+ uf->file_descriptor);
+ if (p == 0)
+ {
+ DBG_SOCK ("fd %d doesn't belong to any interface", uf->file_descriptor);
return 0;
}
else
vui = vec_elt_at_index (vum->vhost_user_interfaces, p[0]);
- client_len = sizeof(client);
+ client_len = sizeof (client);
client_fd = accept (uf->file_descriptor,
- (struct sockaddr *)&client,
- (socklen_t *)&client_len);
+ (struct sockaddr *) &client,
+ (socklen_t *) & client_len);
if (client_fd < 0)
- return clib_error_return_unix (0, "accept");
+ return clib_error_return_unix (0, "accept");
template.read_function = vhost_user_socket_read;
template.error_function = vhost_user_socket_error;
vui->client_fd = client_fd;
hash_set (vum->vhost_user_interface_index_by_sock_fd, vui->client_fd,
- vui - vum->vhost_user_interfaces);
+ vui - vum->vhost_user_interfaces);
return 0;
}
static clib_error_t *
vhost_user_init (vlib_main_t * vm)
{
- clib_error_t * error;
- vhost_user_main_t * vum = &vhost_user_main;
- vlib_thread_main_t * tm = vlib_get_thread_main();
+ clib_error_t *error;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
error = vlib_call_init_function (vm, ip4_init);
if (error)
return error;
- vum->vhost_user_interface_index_by_listener_fd = hash_create (0, sizeof (uword));
- vum->vhost_user_interface_index_by_sock_fd = hash_create (0, sizeof (uword));
- vum->vhost_user_interface_index_by_sw_if_index = hash_create (0, sizeof (uword));
+ vum->vhost_user_interface_index_by_listener_fd =
+ hash_create (0, sizeof (uword));
+ vum->vhost_user_interface_index_by_sock_fd =
+ hash_create (0, sizeof (uword));
+ vum->vhost_user_interface_index_by_sw_if_index =
+ hash_create (0, sizeof (uword));
vum->coalesce_frames = 32;
vum->coalesce_time = 1e-3;
vec_validate_aligned (vum->rx_buffers, tm->n_vlib_mains - 1,
- CLIB_CACHE_LINE_BYTES);
+ CLIB_CACHE_LINE_BYTES);
return 0;
}
VLIB_MAIN_LOOP_EXIT_FUNCTION (vhost_user_exit);
-enum {
+enum
+{
VHOST_USER_RX_NEXT_ETHERNET_INPUT,
VHOST_USER_RX_NEXT_DROP,
VHOST_USER_RX_N_NEXT,
};
-typedef struct {
+typedef struct
+{
u16 virtqueue;
u16 device_index;
#if VHOST_USER_COPY_TX_HDR == 1
#endif
} vhost_user_input_trace_t;
-static u8 * format_vhost_user_input_trace (u8 * s, va_list * va)
+static u8 *
+format_vhost_user_input_trace (u8 * s, va_list * va)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
- CLIB_UNUSED (vnet_main_t * vnm) = vnet_get_main();
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_input_trace_t * t = va_arg (*va, vhost_user_input_trace_t *);
- vhost_user_intf_t * vui = vec_elt_at_index (vum->vhost_user_interfaces,
- t->device_index);
+ CLIB_UNUSED (vnet_main_t * vnm) = vnet_get_main ();
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_input_trace_t *t = va_arg (*va, vhost_user_input_trace_t *);
+ vhost_user_intf_t *vui = vec_elt_at_index (vum->vhost_user_interfaces,
+ t->device_index);
- vnet_sw_interface_t * sw = vnet_get_sw_interface (vnm, vui->sw_if_index);
+ vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, vui->sw_if_index);
#if VHOST_USER_COPY_TX_HDR == 1
uword indent = format_get_indent (s);
#endif
s = format (s, "%U virtqueue %d",
- format_vnet_sw_interface_name, vnm, sw,
- t->virtqueue);
+ format_vnet_sw_interface_name, vnm, sw, t->virtqueue);
#if VHOST_USER_COPY_TX_HDR == 1
s = format (s, "\n%Uvirtio_net_hdr flags 0x%02x gso_type %u hdr_len %u",
- format_white_space, indent,
- t->hdr.flags,
- t->hdr.gso_type,
- t->hdr.hdr_len);
+ format_white_space, indent,
+ t->hdr.flags, t->hdr.gso_type, t->hdr.hdr_len);
#endif
return s;
}
-void vhost_user_rx_trace (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vhost_user_intf_t *vui,
- i16 virtqueue)
+void
+vhost_user_rx_trace (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vhost_user_intf_t * vui, i16 virtqueue)
{
- u32 * b, n_left;
- vhost_user_main_t * vum = &vhost_user_main;
+ u32 *b, n_left;
+ vhost_user_main_t *vum = &vhost_user_main;
u32 next_index = VHOST_USER_RX_NEXT_ETHERNET_INPUT;
- n_left = vec_len(vui->d_trace_buffers);
+ n_left = vec_len (vui->d_trace_buffers);
b = vui->d_trace_buffers;
while (n_left >= 1)
- {
- u32 bi0;
- vlib_buffer_t * b0;
- vhost_user_input_trace_t * t0;
-
- bi0 = b[0];
- n_left -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
- vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 0);
- t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
- t0->virtqueue = virtqueue;
- t0->device_index = vui - vum->vhost_user_interfaces;
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ vhost_user_input_trace_t *t0;
+
+ bi0 = b[0];
+ n_left -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 0);
+ t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
+ t0->virtqueue = virtqueue;
+ t0->device_index = vui - vum->vhost_user_interfaces;
#if VHOST_USER_COPY_TX_HDR == 1
- rte_memcpy(&t0->hdr, b0->pre_data, sizeof(virtio_net_hdr_t));
+ clib_memcpy (&t0->hdr, b0->pre_data, sizeof (virtio_net_hdr_t));
#endif
- b+=1;
- }
+ b += 1;
+ }
}
-static inline void vhost_user_send_call(vlib_main_t * vm, vhost_user_vring_t * vq)
+static inline void
+vhost_user_send_call (vlib_main_t * vm, vhost_user_vring_t * vq)
{
- vhost_user_main_t * vum = &vhost_user_main;
- u64 x = 1;
- int rv __attribute__((unused));
- /* $$$$ pay attention to rv */
- rv = write(vq->callfd, &x, sizeof(x));
- vq->n_since_last_int = 0;
- vq->int_deadline = vlib_time_now(vm) + vum->coalesce_time;
+ vhost_user_main_t *vum = &vhost_user_main;
+ u64 x = 1;
+ int rv __attribute__ ((unused));
+ /* $$$$ pay attention to rv */
+ rv = write (vq->callfd, &x, sizeof (x));
+ vq->n_since_last_int = 0;
+ vq->int_deadline = vlib_time_now (vm) + vum->coalesce_time;
}
-static u32 vhost_user_if_input ( vlib_main_t * vm,
- vhost_user_main_t * vum,
- vhost_user_intf_t * vui,
- vlib_node_runtime_t * node)
+
+static u32
+vhost_user_if_input (vlib_main_t * vm,
+ vhost_user_main_t * vum,
+ vhost_user_intf_t * vui, vlib_node_runtime_t * node)
{
- vhost_user_vring_t * txvq = &vui->vrings[VHOST_NET_VRING_IDX_TX];
- vhost_user_vring_t * rxvq = &vui->vrings[VHOST_NET_VRING_IDX_RX];
+ vhost_user_vring_t *txvq = &vui->vrings[VHOST_NET_VRING_IDX_TX];
+ vhost_user_vring_t *rxvq = &vui->vrings[VHOST_NET_VRING_IDX_RX];
uword n_rx_packets = 0, n_rx_bytes = 0;
uword n_left;
- u32 n_left_to_next, * to_next;
+ u32 n_left_to_next, *to_next;
u32 next_index = 0;
u32 next0;
uword n_trace = vlib_get_trace_count (vm, node);
vec_reset_length (vui->d_trace_buffers);
/* no descriptor ptr - bail out */
- if (PREDICT_FALSE(!txvq->desc || !txvq->avail))
+ if (PREDICT_FALSE (!txvq->desc || !txvq->avail || !txvq->enabled))
return 0;
/* do we have pending intterupts ? */
if ((txvq->n_since_last_int) && (txvq->int_deadline < now))
- vhost_user_send_call(vm, txvq);
+ vhost_user_send_call (vm, txvq);
if ((rxvq->n_since_last_int) && (rxvq->int_deadline < now))
- vhost_user_send_call(vm, rxvq);
+ vhost_user_send_call (vm, rxvq);
/* only bit 0 of avail.flags is used so we don't want to deal with this
interface if any other bit is set */
- if (PREDICT_FALSE(txvq->avail->flags & 0xFFFE))
+ if (PREDICT_FALSE (txvq->avail->flags & 0xFFFE))
return 0;
+ n_left = (u16) (txvq->avail->idx - txvq->last_avail_idx);
+
/* nothing to do */
- if (txvq->avail->idx == txvq->last_avail_idx)
+ if (PREDICT_FALSE (n_left == 0))
return 0;
- if (PREDICT_TRUE(txvq->avail->idx > txvq->last_avail_idx))
- n_left = txvq->avail->idx - txvq->last_avail_idx;
- else /* wrapped */
- n_left = (u16) -1 - txvq->last_avail_idx + txvq->avail->idx;
-
- if (PREDICT_FALSE(!vui->admin_up)) {
- /* if intf is admin down, just drop all packets waiting in the ring */
- txvq->last_avail_idx = txvq->last_used_idx = txvq->avail->idx;
- CLIB_MEMORY_BARRIER();
- txvq->used->idx = txvq->last_used_idx;
- vhost_user_send_call(vm, txvq);
- return 0;
- }
+ if (PREDICT_FALSE (n_left == txvq->qsz))
+ {
+ //Informational error logging when VPP is not receiving packets fast enough
+ vlib_error_count (vm, node->node_index,
+ VHOST_USER_INPUT_FUNC_ERROR_FULL_RX_QUEUE, 1);
+ }
- if (PREDICT_FALSE(n_left > txvq->qsz))
- return 0;
+ if (PREDICT_FALSE (!vui->admin_up))
+ {
+ /* if intf is admin down, just drop all packets waiting in the ring */
+ txvq->last_avail_idx = txvq->last_used_idx = txvq->avail->idx;
+ CLIB_MEMORY_BARRIER ();
+ txvq->used->idx = txvq->last_used_idx;
+ vhost_user_log_dirty_ring (vui, txvq, idx);
+ vhost_user_send_call (vm, txvq);
+ return 0;
+ }
qsz_mask = txvq->qsz - 1;
- cpu_index = os_get_cpu_number();
+ cpu_index = os_get_cpu_number ();
drops = 0;
flush = 0;
* to cycle through the descriptors without having to check for errors.
* For jumbo frames, the bottleneck is memory copy anyway.
*/
- if (PREDICT_FALSE(!vum->rx_buffers[cpu_index])) {
- vec_alloc (vum->rx_buffers[cpu_index], VLIB_FRAME_SIZE);
-
- if (PREDICT_FALSE(!vum->rx_buffers[cpu_index]))
- flush = n_left; //Drop all input
- }
-
- if (PREDICT_FALSE(_vec_len(vum->rx_buffers[cpu_index]) < n_left)) {
- _vec_len(vum->rx_buffers[cpu_index]) +=
- vlib_buffer_alloc_from_free_list(vm, vum->rx_buffers[cpu_index] + _vec_len(vum->rx_buffers[cpu_index]),
- VLIB_FRAME_SIZE - _vec_len(vum->rx_buffers[cpu_index]),
- VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+ if (PREDICT_FALSE (!vum->rx_buffers[cpu_index]))
+ {
+ vec_alloc (vum->rx_buffers[cpu_index], 2 * VLIB_FRAME_SIZE);
- if (PREDICT_FALSE(n_left > _vec_len(vum->rx_buffers[cpu_index])))
- flush = n_left - _vec_len(vum->rx_buffers[cpu_index]);
- }
+ if (PREDICT_FALSE (!vum->rx_buffers[cpu_index]))
+ flush = n_left; //Drop all input
+ }
- if (PREDICT_FALSE(flush)) {
- //Remove some input buffers
- drops += flush;
- n_left -= flush;
- vlib_error_count(vm, vhost_user_input_node.index,
- VHOST_USER_INPUT_FUNC_ERROR_NO_BUFFER, flush);
- while (flush) {
- u16 desc_chain_head = txvq->avail->ring[txvq->last_avail_idx & qsz_mask];
- txvq->last_avail_idx++;
- txvq->used->ring[txvq->last_used_idx & qsz_mask].id = desc_chain_head;
- txvq->used->ring[txvq->last_used_idx & qsz_mask].len = 0;
- txvq->last_used_idx++;
- flush--;
+ if (PREDICT_FALSE (_vec_len (vum->rx_buffers[cpu_index]) < n_left))
+ {
+ u32 curr_len = _vec_len (vum->rx_buffers[cpu_index]);
+ _vec_len (vum->rx_buffers[cpu_index]) +=
+ vlib_buffer_alloc_from_free_list (vm,
+ vum->rx_buffers[cpu_index] +
+ curr_len,
+ 2 * VLIB_FRAME_SIZE - curr_len,
+ VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+
+ if (PREDICT_FALSE (n_left > _vec_len (vum->rx_buffers[cpu_index])))
+ flush = n_left - _vec_len (vum->rx_buffers[cpu_index]);
}
- }
- rx_len = vec_len(vum->rx_buffers[cpu_index]); //vector might be null
- while (n_left > 0) {
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
- while (n_left > 0 && n_left_to_next > 0) {
- vlib_buffer_t *b_head, *b_current;
- u32 bi_head, bi_current;
- u16 desc_chain_head, desc_current;
- u8 error = VHOST_USER_INPUT_FUNC_ERROR_NO_ERROR;
-
- desc_chain_head = desc_current = txvq->avail->ring[txvq->last_avail_idx & qsz_mask];
- bi_head = bi_current = vum->rx_buffers[cpu_index][--rx_len];
- b_head = b_current = vlib_get_buffer (vm, bi_head);
- vlib_buffer_chain_init(b_head);
-
- uword offset;
- if (PREDICT_TRUE(vui->is_any_layout) ||
- !(txvq->desc[desc_current].flags & VIRTQ_DESC_F_NEXT)) {
- /* ANYLAYOUT or single buffer */
- offset = vui->virtio_net_hdr_sz;
- } else {
- /* CSR case without ANYLAYOUT, skip 1st buffer */
- offset = txvq->desc[desc_current].len;
- }
+ if (PREDICT_FALSE (flush))
+ {
+ //Remove some input buffers
+ drops += flush;
+ n_left -= flush;
+ vlib_error_count (vm, vhost_user_input_node.index,
+ VHOST_USER_INPUT_FUNC_ERROR_NO_BUFFER, flush);
+ while (flush)
+ {
+ u16 desc_chain_head =
+ txvq->avail->ring[txvq->last_avail_idx & qsz_mask];
+ txvq->last_avail_idx++;
+ txvq->used->ring[txvq->last_used_idx & qsz_mask].id =
+ desc_chain_head;
+ txvq->used->ring[txvq->last_used_idx & qsz_mask].len = 0;
+ vhost_user_log_dirty_ring (vui, txvq,
+ ring[txvq->last_used_idx & qsz_mask]);
+ txvq->last_used_idx++;
+ flush--;
+ }
+ }
- while(1) {
- void * buffer_addr = map_guest_mem(vui, txvq->desc[desc_current].addr);
- if (PREDICT_FALSE(buffer_addr == 0)) {
- error = VHOST_USER_INPUT_FUNC_ERROR_MMAP_FAIL;
- break;
- }
+ rx_len = vec_len (vum->rx_buffers[cpu_index]); //vector might be null
+ while (n_left > 0)
+ {
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left > 0 && n_left_to_next > 0)
+ {
+ vlib_buffer_t *b_head, *b_current;
+ u32 bi_head, bi_current;
+ u16 desc_chain_head, desc_current;
+ u8 error = VHOST_USER_INPUT_FUNC_ERROR_NO_ERROR;
+
+ if (PREDICT_TRUE (n_left > 1))
+ {
+ u32 next_desc =
+ txvq->avail->ring[(txvq->last_avail_idx + 1) & qsz_mask];
+ void *buffer_addr =
+ map_guest_mem (vui, txvq->desc[next_desc].addr);
+ if (PREDICT_TRUE (buffer_addr != 0))
+ CLIB_PREFETCH (buffer_addr, 64, STORE);
+
+ u32 bi = vum->rx_buffers[cpu_index][rx_len - 2];
+ vlib_prefetch_buffer_with_index (vm, bi, STORE);
+ CLIB_PREFETCH (vlib_get_buffer (vm, bi)->data, 128, STORE);
+ }
+
+ desc_chain_head = desc_current =
+ txvq->avail->ring[txvq->last_avail_idx & qsz_mask];
+ bi_head = bi_current = vum->rx_buffers[cpu_index][--rx_len];
+ b_head = b_current = vlib_get_buffer (vm, bi_head);
+ vlib_buffer_chain_init (b_head);
+
+ uword offset;
+ if (PREDICT_TRUE (vui->is_any_layout) ||
+ (!(txvq->desc[desc_current].flags & VIRTQ_DESC_F_NEXT) &&
+ !(txvq->desc[desc_current].flags & VIRTQ_DESC_F_INDIRECT)))
+ {
+ /* ANYLAYOUT or single buffer */
+ offset = vui->virtio_net_hdr_sz;
+ }
+ else
+ {
+ /* CSR case without ANYLAYOUT, skip 1st buffer */
+ offset = txvq->desc[desc_current].len;
+ }
+
+ vring_desc_t *desc_table = txvq->desc;
+ u32 desc_index = desc_current;
+
+ if (txvq->desc[desc_current].flags & VIRTQ_DESC_F_INDIRECT)
+ {
+ desc_table = map_guest_mem (vui, txvq->desc[desc_current].addr);
+ desc_index = 0;
+ if (PREDICT_FALSE (desc_table == 0))
+ {
+ error = VHOST_USER_INPUT_FUNC_ERROR_MMAP_FAIL;
+ goto out;
+ }
+ }
+
+ while (1)
+ {
+ void *buffer_addr =
+ map_guest_mem (vui, desc_table[desc_index].addr);
+ if (PREDICT_FALSE (buffer_addr == 0))
+ {
+ error = VHOST_USER_INPUT_FUNC_ERROR_MMAP_FAIL;
+ goto out;
+ }
+
+ if (PREDICT_TRUE
+ (desc_table[desc_index].flags & VIRTQ_DESC_F_NEXT))
+ {
+ CLIB_PREFETCH (&desc_table[desc_table[desc_index].next],
+ sizeof (vring_desc_t), STORE);
+ }
#if VHOST_USER_COPY_TX_HDR == 1
- if (PREDICT_TRUE(offset))
- rte_memcpy(b->pre_data, buffer_addr, sizeof(virtio_net_hdr_t)); /* 12 byte hdr is not used on tx */
+ if (PREDICT_TRUE (offset))
+ clib_memcpy (b->pre_data, buffer_addr, sizeof (virtio_net_hdr_t)); /* 12 byte hdr is not used on tx */
#endif
- if (txvq->desc[desc_current].len > offset) {
- u16 len = txvq->desc[desc_current].len - offset;
- u16 copied = vlib_buffer_chain_append_data_with_alloc(vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX,
- b_head, &b_current, buffer_addr + offset, len);
-
- if (copied != len) {
- error = VHOST_USER_INPUT_FUNC_ERROR_NO_BUFFER;
- break;
- }
- }
- offset = 0;
-
- /* if next flag is set, take next desc in the chain */
- if (txvq->desc[desc_current].flags & VIRTQ_DESC_F_NEXT )
- desc_current = txvq->desc[desc_current].next;
- else
- break;
- }
-
- /* consume the descriptor and return it as used */
- txvq->last_avail_idx++;
- txvq->used->ring[txvq->last_used_idx & qsz_mask].id = desc_chain_head;
- txvq->used->ring[txvq->last_used_idx & qsz_mask].len = 0;
- txvq->last_used_idx++;
-
- if(PREDICT_FALSE(b_head->current_length < 14 &&
- error == VHOST_USER_INPUT_FUNC_ERROR_NO_ERROR)) {
- error = VHOST_USER_INPUT_FUNC_ERROR_UNDERSIZED_FRAME;
- }
-
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT(b);
-
- vnet_buffer (b_head)->sw_if_index[VLIB_RX] = vui->sw_if_index;
- vnet_buffer (b_head)->sw_if_index[VLIB_TX] = (u32)~0;
- b_head->error = node->errors[error];
-
- if (PREDICT_FALSE (n_trace > n_rx_packets))
- vec_add1 (vui->d_trace_buffers, bi_head);
-
- if (PREDICT_FALSE(error)) {
- drops++;
- next0 = VHOST_USER_RX_NEXT_DROP;
- } else {
- n_rx_bytes += b_head->current_length + b_head->total_length_not_including_first_buffer;
- n_rx_packets++;
- next0 = VHOST_USER_RX_NEXT_ETHERNET_INPUT;
- }
+ if (desc_table[desc_index].len > offset)
+ {
+ u16 len = desc_table[desc_index].len - offset;
+ u16 copied = vlib_buffer_chain_append_data_with_alloc (vm,
+ VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX,
+ b_head,
+ &b_current,
+ buffer_addr
+ +
+ offset,
+ len);
+ if (copied != len)
+ {
+ error = VHOST_USER_INPUT_FUNC_ERROR_NO_BUFFER;
+ break;
+ }
+ }
+ offset = 0;
+
+ /* if next flag is set, take next desc in the chain */
+ if ((desc_table[desc_index].flags & VIRTQ_DESC_F_NEXT))
+ desc_index = desc_table[desc_index].next;
+ else
+ goto out;
+ }
+ out:
+
+ /* consume the descriptor and return it as used */
+ txvq->last_avail_idx++;
+ txvq->used->ring[txvq->last_used_idx & qsz_mask].id =
+ desc_chain_head;
+ txvq->used->ring[txvq->last_used_idx & qsz_mask].len = 0;
+ vhost_user_log_dirty_ring (vui, txvq,
+ ring[txvq->last_used_idx & qsz_mask]);
+ txvq->last_used_idx++;
+
+ //It is important to free RX as fast as possible such that the TX
+ //process does not drop packets
+ if ((txvq->last_used_idx & 0x3f) == 0) // Every 64 packets
+ txvq->used->idx = txvq->last_used_idx;
+
+ if (PREDICT_FALSE (b_head->current_length < 14 &&
+ error == VHOST_USER_INPUT_FUNC_ERROR_NO_ERROR))
+ error = VHOST_USER_INPUT_FUNC_ERROR_UNDERSIZED_FRAME;
+
+ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b_head);
+
+ vnet_buffer (b_head)->sw_if_index[VLIB_RX] = vui->sw_if_index;
+ vnet_buffer (b_head)->sw_if_index[VLIB_TX] = (u32) ~ 0;
+ b_head->error = node->errors[error];
+
+ if (PREDICT_FALSE (n_trace > n_rx_packets))
+ vec_add1 (vui->d_trace_buffers, bi_head);
+
+ if (PREDICT_FALSE (error))
+ {
+ drops++;
+ next0 = VHOST_USER_RX_NEXT_DROP;
+ }
+ else
+ {
+ n_rx_bytes +=
+ b_head->current_length +
+ b_head->total_length_not_including_first_buffer;
+ n_rx_packets++;
+ next0 = VHOST_USER_RX_NEXT_ETHERNET_INPUT;
+ }
+
+ to_next[0] = bi_head;
+ to_next++;
+ n_left_to_next--;
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi_head, next0);
+ n_left--;
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- to_next[0] = bi_head;
- to_next++;
- n_left_to_next--;
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi_head, next0);
- n_left--;
}
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- if (PREDICT_TRUE(vum->rx_buffers[cpu_index] != 0))
- _vec_len(vum->rx_buffers[cpu_index]) = rx_len;
+ if (PREDICT_TRUE (vum->rx_buffers[cpu_index] != 0))
+ _vec_len (vum->rx_buffers[cpu_index]) = rx_len;
/* give buffers back to driver */
- CLIB_MEMORY_BARRIER();
+ CLIB_MEMORY_BARRIER ();
txvq->used->idx = txvq->last_used_idx;
+ vhost_user_log_dirty_ring (vui, txvq, idx);
if (PREDICT_FALSE (vec_len (vui->d_trace_buffers) > 0))
- {
- vhost_user_rx_trace (vm, node, vui, VHOST_NET_VRING_IDX_TX);
- vlib_set_trace_count (vm, node, n_trace - vec_len (vui->d_trace_buffers));
- }
+ {
+ vhost_user_rx_trace (vm, node, vui, VHOST_NET_VRING_IDX_TX);
+ vlib_set_trace_count (vm, node,
+ n_trace - vec_len (vui->d_trace_buffers));
+ }
/* interrupt (call) handling */
- if((txvq->callfd > 0) && !(txvq->avail->flags & 1)) {
- txvq->n_since_last_int += n_rx_packets;
+ if ((txvq->callfd > 0) && !(txvq->avail->flags & 1))
+ {
+ txvq->n_since_last_int += n_rx_packets;
- if(txvq->n_since_last_int > vum->coalesce_frames)
- vhost_user_send_call(vm, txvq);
- }
+ if (txvq->n_since_last_int > vum->coalesce_frames)
+ vhost_user_send_call (vm, txvq);
+ }
- if (PREDICT_FALSE(drops)) {
- vlib_increment_simple_counter
- (vnet_main.interface_main.sw_if_counters
- + VNET_INTERFACE_COUNTER_DROP, os_get_cpu_number(),
- vui->sw_if_index, drops);
- }
+ if (PREDICT_FALSE (drops))
+ {
+ vlib_increment_simple_counter
+ (vnet_main.interface_main.sw_if_counters
+ + VNET_INTERFACE_COUNTER_DROP, os_get_cpu_number (),
+ vui->sw_if_index, drops);
+ }
/* increase rx counters */
vlib_increment_combined_counter
- (vnet_main.interface_main.combined_sw_if_counters
- + VNET_INTERFACE_COUNTER_RX,
- os_get_cpu_number(),
- vui->sw_if_index,
- n_rx_packets, n_rx_bytes);
+ (vnet_main.interface_main.combined_sw_if_counters
+ + VNET_INTERFACE_COUNTER_RX,
+ os_get_cpu_number (), vui->sw_if_index, n_rx_packets, n_rx_bytes);
return n_rx_packets;
}
static uword
vhost_user_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * f)
+ vlib_node_runtime_t * node, vlib_frame_t * f)
{
- vhost_user_main_t * vum = &vhost_user_main;
- dpdk_main_t * dm = &dpdk_main;
- vhost_user_intf_t * vui;
+ vhost_user_main_t *vum = &vhost_user_main;
+#if DPDK > 0
+ dpdk_main_t *dm = &dpdk_main;
+ u32 cpu_index = os_get_cpu_number ();
+#endif
+ vhost_user_intf_t *vui;
uword n_rx_packets = 0;
- u32 cpu_index = os_get_cpu_number();
int i;
- for(i = 0; i < vec_len(vum->vhost_user_interfaces); i++ )
+ for (i = 0; i < vec_len (vum->vhost_user_interfaces); i++)
{
- vui = vec_elt_at_index(vum->vhost_user_interfaces, i);
- if (vui->is_up &&
- (i % dm->input_cpu_count) == (cpu_index - dm->input_cpu_first_index))
- n_rx_packets += vhost_user_if_input (vm, vum, vui, node);
+ vui = vec_elt_at_index (vum->vhost_user_interfaces, i);
+ if (vui->is_up)
+ {
+#if DPDK > 0
+ if ((i % dm->input_cpu_count) ==
+ (cpu_index - dm->input_cpu_first_index))
+#endif
+ n_rx_packets += vhost_user_if_input (vm, vum, vui, node);
+ }
}
return n_rx_packets;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (vhost_user_input_node) = {
.function = vhost_user_input,
.type = VLIB_NODE_TYPE_INPUT,
},
};
+VLIB_NODE_FUNCTION_MULTIARCH (vhost_user_input_node, vhost_user_input)
+/* *INDENT-ON* */
+
static uword
vhost_user_intfc_tx (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- u32 * buffers = vlib_frame_args (frame);
+ u32 *buffers = vlib_frame_args (frame);
u32 n_left = 0;
- u16 used_index;
- vhost_user_main_t * vum = &vhost_user_main;
+ vhost_user_main_t *vum = &vhost_user_main;
uword n_packets = 0;
- vnet_interface_output_runtime_t * rd = (void *) node->runtime_data;
- vhost_user_intf_t * vui = vec_elt_at_index (vum->vhost_user_interfaces, rd->dev_instance);
- vhost_user_vring_t * rxvq = &vui->vrings[VHOST_NET_VRING_IDX_RX];
+ vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
+ vhost_user_intf_t *vui =
+ vec_elt_at_index (vum->vhost_user_interfaces, rd->dev_instance);
+ vhost_user_vring_t *rxvq = &vui->vrings[VHOST_NET_VRING_IDX_RX];
u16 qsz_mask;
u8 error = VHOST_USER_TX_FUNC_ERROR_NONE;
- if (PREDICT_FALSE(!vui->is_up))
- goto done2;
+ n_left = n_packets = frame->n_vectors;
- if (PREDICT_FALSE(!rxvq->desc || !rxvq->avail || vui->sock_errno != 0)) {
- error = VHOST_USER_TX_FUNC_ERROR_NOT_READY;
- goto done2;
- }
+ if (PREDICT_FALSE (!vui->is_up))
+ goto done2;
+
+ if (PREDICT_FALSE
+ (!rxvq->desc || !rxvq->avail || vui->sock_errno != 0 || !rxvq->enabled))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_NOT_READY;
+ goto done2;
+ }
- if (PREDICT_FALSE(vui->lockp != 0))
+ if (PREDICT_FALSE (vui->lockp != 0))
{
while (__sync_lock_test_and_set (vui->lockp, 1))
- ;
+ ;
}
/* only bit 0 of avail.flags is used so we don't want to deal with this
interface if any other bit is set */
- if (PREDICT_FALSE(rxvq->avail->flags & 0xFFFE)) {
- error = VHOST_USER_TX_FUNC_ERROR_NOT_READY;
- goto done2;
- }
+ if (PREDICT_FALSE (rxvq->avail->flags & 0xFFFE))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_NOT_READY;
+ goto done2;
+ }
- if (PREDICT_FALSE((rxvq->avail->idx == rxvq->last_avail_idx))) {
- error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOBUF;
- goto done2;
- }
+ if (PREDICT_FALSE ((rxvq->avail->idx == rxvq->last_avail_idx)))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOBUF;
+ goto done2;
+ }
- n_left = n_packets = frame->n_vectors;
- used_index = rxvq->used->idx;
- qsz_mask = rxvq->qsz - 1; /* qsz is always power of 2 */
+ qsz_mask = rxvq->qsz - 1; /* qsz is always power of 2 */
while (n_left > 0)
- {
+ {
vlib_buffer_t *b0, *current_b0;
- u16 desc_chain_head, desc_current, desc_len;
+ u16 desc_head, desc_index, desc_len;
+ vring_desc_t *desc_table;
void *buffer_addr;
- uword offset;
-
- if (n_left >= 2)
- vlib_prefetch_buffer_with_index (vm, buffers[1], LOAD);
+ u32 buffer_len;
b0 = vlib_get_buffer (vm, buffers[0]);
buffers++;
- n_left--;
-
- if (PREDICT_FALSE(rxvq->last_avail_idx == rxvq->avail->idx)) {
- error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOBUF;
- goto done;
- }
-
- desc_current = desc_chain_head = rxvq->avail->ring[rxvq->last_avail_idx & qsz_mask];
- offset = vui->virtio_net_hdr_sz;
- desc_len = offset;
- if (PREDICT_FALSE(!(buffer_addr = map_guest_mem(vui, rxvq->desc[desc_current].addr)))) {
- error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
- goto done;
- }
- CLIB_PREFETCH(buffer_addr, clib_min(rxvq->desc[desc_current].len, 500), STORE);
- virtio_net_hdr_mrg_rxbuf_t * hdr = (virtio_net_hdr_mrg_rxbuf_t *) buffer_addr;
+ if (PREDICT_FALSE (rxvq->last_avail_idx == rxvq->avail->idx))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOBUF;
+ goto done;
+ }
+
+ desc_table = rxvq->desc;
+ desc_head = desc_index =
+ rxvq->avail->ring[rxvq->last_avail_idx & qsz_mask];
+ if (rxvq->desc[desc_head].flags & VIRTQ_DESC_F_INDIRECT)
+ {
+ if (PREDICT_FALSE
+ (rxvq->desc[desc_head].len < sizeof (vring_desc_t)))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_INDIRECT_OVERFLOW;
+ goto done;
+ }
+ if (PREDICT_FALSE
+ (!(desc_table =
+ map_guest_mem (vui, rxvq->desc[desc_index].addr))))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
+ goto done;
+ }
+ desc_index = 0;
+ }
+
+ desc_len = vui->virtio_net_hdr_sz;
+
+ if (PREDICT_FALSE
+ (!(buffer_addr = map_guest_mem (vui, desc_table[desc_index].addr))))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
+ goto done;
+ }
+ buffer_len = desc_table[desc_index].len;
+
+ CLIB_PREFETCH (buffer_addr,
+ clib_min (buffer_len, 2 * CLIB_CACHE_LINE_BYTES), STORE);
+
+ virtio_net_hdr_mrg_rxbuf_t *hdr =
+ (virtio_net_hdr_mrg_rxbuf_t *) buffer_addr;
hdr->hdr.flags = 0;
hdr->hdr.gso_type = 0;
-
if (vui->virtio_net_hdr_sz == 12)
- hdr->num_buffers = 1;
+ hdr->num_buffers = 1;
+
+ vhost_user_log_dirty_pages (vui, desc_table[desc_index].addr,
+ vui->virtio_net_hdr_sz);
u16 bytes_left = b0->current_length;
- buffer_addr += offset;
+ buffer_addr += vui->virtio_net_hdr_sz;
+ buffer_len -= vui->virtio_net_hdr_sz;
current_b0 = b0;
-
- //FIXME: This was in the code but I don't think it is valid
- /*if (PREDICT_FALSE(!vui->is_any_layout && (rxvq->desc[desc_current].flags & VIRTQ_DESC_F_NEXT))) {
- rxvq->desc[desc_current].len = vui->virtio_net_hdr_sz;
- }*/
-
- while(1) {
- if (!bytes_left) { //Get new input
- if (current_b0->flags & VLIB_BUFFER_NEXT_PRESENT) {
- current_b0 = vlib_get_buffer(vm, current_b0->next_buffer);
- bytes_left = current_b0->current_length;
- } else {
- //End of packet
- break;
- }
- }
-
- if (rxvq->desc[desc_current].len <= offset) { //Get new output
- if (rxvq->desc[desc_current].flags & VIRTQ_DESC_F_NEXT) {
- offset = 0;
- desc_current = rxvq->desc[desc_current].next;
- if (PREDICT_FALSE(!(buffer_addr = map_guest_mem(vui, rxvq->desc[desc_current].addr)))) {
- used_index -= hdr->num_buffers - 1;
- rxvq->last_avail_idx -= hdr->num_buffers - 1;
- error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
- goto done;
- }
- } else if (vui->virtio_net_hdr_sz == 12) { //MRG is available
-
- //Move from available to used buffer
- rxvq->used->ring[used_index & qsz_mask].id = desc_chain_head;
- rxvq->used->ring[used_index & qsz_mask].len = desc_len;
- rxvq->last_avail_idx++;
- used_index++;
- hdr->num_buffers++;
-
- if (PREDICT_FALSE(rxvq->last_avail_idx == rxvq->avail->idx)) {
- //Dequeue queued descriptors for this packet
- used_index -= hdr->num_buffers - 1;
- rxvq->last_avail_idx -= hdr->num_buffers - 1;
- error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOBUF;
- goto done;
- }
-
- //Look at next one
- desc_chain_head = rxvq->avail->ring[rxvq->last_avail_idx & qsz_mask];
- desc_current = desc_chain_head;
- desc_len = 0;
- offset = 0;
- if (PREDICT_FALSE(!(buffer_addr = map_guest_mem(vui, rxvq->desc[desc_current].addr)))) {
- //Dequeue queued descriptors for this packet
- used_index -= hdr->num_buffers - 1;
- rxvq->last_avail_idx -= hdr->num_buffers - 1;
- error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
- goto done;
- }
- } else {
- error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOBUF;
- goto done;
- }
- }
-
- u16 bytes_to_copy = bytes_left > (rxvq->desc[desc_current].len - offset) ? (rxvq->desc[desc_current].len - offset) : bytes_left;
- rte_memcpy(buffer_addr, vlib_buffer_get_current (current_b0) + current_b0->current_length - bytes_left, bytes_to_copy);
-
- bytes_left -= bytes_to_copy;
- offset += bytes_to_copy;
- buffer_addr += bytes_to_copy;
- desc_len += bytes_to_copy;
- }
+ while (1)
+ {
+ if (!bytes_left)
+ { //Get new input
+ if (current_b0->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ current_b0 = vlib_get_buffer (vm, current_b0->next_buffer);
+ bytes_left = current_b0->current_length;
+ }
+ else
+ {
+ //End of packet
+ break;
+ }
+ }
+
+ if (buffer_len == 0)
+ { //Get new output
+ if (desc_table[desc_index].flags & VIRTQ_DESC_F_NEXT)
+ {
+ //Next one is chained
+ desc_index = desc_table[desc_index].next;
+ if (PREDICT_FALSE
+ (!(buffer_addr =
+ map_guest_mem (vui, desc_table[desc_index].addr))))
+ {
+ rxvq->last_used_idx -= hdr->num_buffers - 1;
+ rxvq->last_avail_idx -= hdr->num_buffers - 1;
+ error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
+ goto done;
+ }
+ buffer_len = desc_table[desc_index].len;
+ }
+ else if (vui->virtio_net_hdr_sz == 12) //MRG is available
+ {
+ //Move from available to used buffer
+ rxvq->used->ring[rxvq->last_used_idx & qsz_mask].id =
+ desc_head;
+ rxvq->used->ring[rxvq->last_used_idx & qsz_mask].len =
+ desc_len;
+ vhost_user_log_dirty_ring (vui, rxvq,
+ ring[rxvq->last_used_idx &
+ qsz_mask]);
+ rxvq->last_avail_idx++;
+ rxvq->last_used_idx++;
+ hdr->num_buffers++;
+
+ if (PREDICT_FALSE
+ (rxvq->last_avail_idx == rxvq->avail->idx))
+ {
+ //Dequeue queued descriptors for this packet
+ rxvq->last_used_idx -= hdr->num_buffers - 1;
+ rxvq->last_avail_idx -= hdr->num_buffers - 1;
+ error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOBUF;
+ goto done;
+ }
+
+ desc_table = rxvq->desc;
+ desc_head = desc_index =
+ rxvq->avail->ring[rxvq->last_avail_idx & qsz_mask];
+ if (PREDICT_FALSE
+ (rxvq->desc[desc_head].flags & VIRTQ_DESC_F_INDIRECT))
+ {
+ //It is seriously unlikely that a driver will put indirect descriptor
+ //after non-indirect descriptor.
+ if (PREDICT_FALSE
+ (rxvq->desc[desc_head].len < sizeof (vring_desc_t)))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_INDIRECT_OVERFLOW;
+ goto done;
+ }
+ if (PREDICT_FALSE
+ (!(desc_table =
+ map_guest_mem (vui,
+ rxvq->desc[desc_index].addr))))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
+ goto done;
+ }
+ desc_index = 0;
+ }
+
+ if (PREDICT_FALSE
+ (!(buffer_addr =
+ map_guest_mem (vui, desc_table[desc_index].addr))))
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_MMAP_FAIL;
+ goto done;
+ }
+ buffer_len = desc_table[desc_index].len;
+ CLIB_PREFETCH (buffer_addr,
+ clib_min (buffer_len,
+ 2 * CLIB_CACHE_LINE_BYTES), STORE);
+ }
+ else
+ {
+ error = VHOST_USER_TX_FUNC_ERROR_PKT_DROP_NOMRG;
+ goto done;
+ }
+ }
+
+ u16 bytes_to_copy = bytes_left;
+ bytes_to_copy =
+ (bytes_to_copy > buffer_len) ? buffer_len : bytes_to_copy;
+ clib_memcpy (buffer_addr,
+ vlib_buffer_get_current (current_b0) +
+ current_b0->current_length - bytes_left,
+ bytes_to_copy);
+
+ vhost_user_log_dirty_pages (vui,
+ desc_table[desc_index].addr +
+ desc_table[desc_index].len -
+ bytes_left - bytes_to_copy,
+ bytes_to_copy);
+
+ bytes_left -= bytes_to_copy;
+ buffer_len -= bytes_to_copy;
+ buffer_addr += bytes_to_copy;
+ desc_len += bytes_to_copy;
+ }
+
+ if (PREDICT_TRUE (n_left >= 2))
+ {
+ vlib_prefetch_buffer_with_index (vm, buffers[1], STORE);
+ CLIB_PREFETCH (&n_left, sizeof (n_left), STORE);
+ }
//Move from available to used ring
- rxvq->used->ring[used_index & qsz_mask].id = desc_chain_head;
- rxvq->used->ring[used_index & qsz_mask].len = desc_len;
+ rxvq->used->ring[rxvq->last_used_idx & qsz_mask].id = desc_head;
+ rxvq->used->ring[rxvq->last_used_idx & qsz_mask].len = desc_len;
+ vhost_user_log_dirty_ring (vui, rxvq,
+ ring[rxvq->last_used_idx & qsz_mask]);
+
rxvq->last_avail_idx++;
- used_index++;
- }
+ rxvq->last_used_idx++;
+
+ n_left--; //At the end for error counting when 'goto done' is invoked
+ }
done:
- CLIB_MEMORY_BARRIER();
- rxvq->used->idx = used_index;
+ CLIB_MEMORY_BARRIER ();
+ rxvq->used->idx = rxvq->last_used_idx;
+ vhost_user_log_dirty_ring (vui, rxvq, idx);
/* interrupt (call) handling */
- if((rxvq->callfd > 0) && !(rxvq->avail->flags & 1)) {
- rxvq->n_since_last_int += n_packets - n_left;
+ if ((rxvq->callfd > 0) && !(rxvq->avail->flags & 1))
+ {
+ rxvq->n_since_last_int += n_packets - n_left;
- if(rxvq->n_since_last_int > vum->coalesce_frames)
- vhost_user_send_call(vm, rxvq);
- }
+ if (rxvq->n_since_last_int > vum->coalesce_frames)
+ vhost_user_send_call (vm, rxvq);
+ }
done2:
- if (PREDICT_FALSE(vui->lockp != 0))
- *vui->lockp = 0;
-
- if (PREDICT_FALSE(n_left && error != VHOST_USER_TX_FUNC_ERROR_NONE)) {
- vlib_error_count(vm, node->node_index, error, n_left);
- vlib_increment_simple_counter
- (vnet_main.interface_main.sw_if_counters
- + VNET_INTERFACE_COUNTER_DROP,
- os_get_cpu_number(),
- vui->sw_if_index,
- n_left);
- }
+ if (PREDICT_FALSE (vui->lockp != 0))
+ *vui->lockp = 0;
+
+ if (PREDICT_FALSE (n_left && error != VHOST_USER_TX_FUNC_ERROR_NONE))
+ {
+ vlib_error_count (vm, node->node_index, error, n_left);
+ vlib_increment_simple_counter
+ (vnet_main.interface_main.sw_if_counters
+ + VNET_INTERFACE_COUNTER_DROP,
+ os_get_cpu_number (), vui->sw_if_index, n_left);
+ }
vlib_buffer_free (vm, vlib_frame_args (frame), frame->n_vectors);
return frame->n_vectors;
}
static clib_error_t *
-vhost_user_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
+vhost_user_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index,
+ u32 flags)
{
- vnet_hw_interface_t * hif = vnet_get_hw_interface (vnm, hw_if_index);
+ vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index);
uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui = vec_elt_at_index (vum->vhost_user_interfaces, hif->dev_instance);
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui =
+ vec_elt_at_index (vum->vhost_user_interfaces, hif->dev_instance);
vui->admin_up = is_up;
if (is_up)
vnet_hw_interface_set_flags (vnm, vui->hw_if_index,
- VNET_HW_INTERFACE_FLAG_LINK_UP);
+ VNET_HW_INTERFACE_FLAG_LINK_UP);
return /* no error */ 0;
}
+/* *INDENT-OFF* */
VNET_DEVICE_CLASS (vhost_user_dev_class,static) = {
.name = "vhost-user",
.tx_function = vhost_user_intfc_tx,
.no_flatten_output_chains = 1,
};
+VLIB_DEVICE_TX_FUNCTION_MULTIARCH (vhost_user_dev_class,
+ vhost_user_intfc_tx)
+/* *INDENT-ON* */
+
static uword
vhost_user_process (vlib_main_t * vm,
- vlib_node_runtime_t * rt,
- vlib_frame_t * f)
+ vlib_node_runtime_t * rt, vlib_frame_t * f)
{
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
- struct sockaddr_un sun;
- int sockfd;
- unix_file_t template = {0};
- f64 timeout = 3153600000.0 /* 100 years */;
- uword *event_data = 0;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
+ struct sockaddr_un sun;
+ int sockfd;
+ unix_file_t template = { 0 };
+ f64 timeout = 3153600000.0 /* 100 years */ ;
+ uword *event_data = 0;
+
+ sockfd = socket (AF_UNIX, SOCK_STREAM, 0);
+ sun.sun_family = AF_UNIX;
+ template.read_function = vhost_user_socket_read;
+ template.error_function = vhost_user_socket_error;
- sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
- sun.sun_family = AF_UNIX;
- template.read_function = vhost_user_socket_read;
- template.error_function = vhost_user_socket_error;
+ if (sockfd < 0)
+ return 0;
- if (sockfd < 0)
- return 0;
+ while (1)
+ {
+ vlib_process_wait_for_event_or_clock (vm, timeout);
+ vlib_process_get_events (vm, &event_data);
+ vec_reset_length (event_data);
+
+ timeout = 3.0;
+
+ vec_foreach (vui, vum->vhost_user_interfaces)
+ {
- while (1) {
- vlib_process_wait_for_event_or_clock (vm, timeout);
- vlib_process_get_events (vm, &event_data);
- vec_reset_length (event_data);
-
- timeout = 3.0;
-
- vec_foreach (vui, vum->vhost_user_interfaces) {
-
- if (vui->sock_is_server || !vui->active)
- continue;
-
- if (vui->unix_fd == -1) {
- /* try to connect */
-
- strncpy(sun.sun_path, (char *) vui->sock_filename, sizeof(sun.sun_path) - 1);
-
- if (connect(sockfd, (struct sockaddr *) &sun, sizeof(struct sockaddr_un)) == 0) {
- vui->sock_errno = 0;
- vui->unix_fd = sockfd;
- template.file_descriptor = sockfd;
- vui->unix_file_index = unix_file_add (&unix_main, &template);
- hash_set (vum->vhost_user_interface_index_by_sock_fd, sockfd, vui - vum->vhost_user_interfaces);
-
- sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (sockfd < 0)
- return 0;
- }
- else {
- vui->sock_errno = errno;
- }
- } else {
- /* check if socket is alive */
- int error = 0;
- socklen_t len = sizeof (error);
- int retval = getsockopt(vui->unix_fd, SOL_SOCKET, SO_ERROR, &error, &len);
-
- if (retval)
- vhost_user_if_disconnect(vui);
- }
- }
+ if (vui->sock_is_server || !vui->active)
+ continue;
+
+ if (vui->unix_fd == -1)
+ {
+ /* try to connect */
+
+ strncpy (sun.sun_path, (char *) vui->sock_filename,
+ sizeof (sun.sun_path) - 1);
+
+ if (connect
+ (sockfd, (struct sockaddr *) &sun,
+ sizeof (struct sockaddr_un)) == 0)
+ {
+ vui->sock_errno = 0;
+ vui->unix_fd = sockfd;
+ template.file_descriptor = sockfd;
+ vui->unix_file_index = unix_file_add (&unix_main, &template);
+ hash_set (vum->vhost_user_interface_index_by_sock_fd, sockfd,
+ vui - vum->vhost_user_interfaces);
+
+ sockfd = socket (AF_UNIX, SOCK_STREAM, 0);
+ if (sockfd < 0)
+ return 0;
+ }
+ else
+ {
+ vui->sock_errno = errno;
+ }
+ }
+ else
+ {
+ /* check if socket is alive */
+ int error = 0;
+ socklen_t len = sizeof (error);
+ int retval =
+ getsockopt (vui->unix_fd, SOL_SOCKET, SO_ERROR, &error, &len);
+
+ if (retval)
+ vhost_user_if_disconnect (vui);
+ }
+ }
}
- return 0;
+ return 0;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (vhost_user_process_node,static) = {
.function = vhost_user_process,
.type = VLIB_NODE_TYPE_PROCESS,
.name = "vhost-user-process",
};
+/* *INDENT-ON* */
-int vhost_user_delete_if(vnet_main_t * vnm, vlib_main_t * vm,
- u32 sw_if_index)
+int
+vhost_user_delete_if (vnet_main_t * vnm, vlib_main_t * vm, u32 sw_if_index)
{
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
uword *p = NULL;
int rv = 0;
- p = hash_get (vum->vhost_user_interface_index_by_sw_if_index,
- sw_if_index);
- if (p == 0) {
- return VNET_API_ERROR_INVALID_SW_IF_INDEX;
- } else {
- vui = vec_elt_at_index (vum->vhost_user_interfaces, p[0]);
- }
+ p = hash_get (vum->vhost_user_interface_index_by_sw_if_index, sw_if_index);
+ if (p == 0)
+ {
+ return VNET_API_ERROR_INVALID_SW_IF_INDEX;
+ }
+ else
+ {
+ vui = vec_elt_at_index (vum->vhost_user_interfaces, p[0]);
+ }
// interface is inactive
vui->active = 0;
// disconnect interface sockets
- vhost_user_if_disconnect(vui);
+ vhost_user_if_disconnect (vui);
// add to inactive interface list
vec_add1 (vum->vhost_user_inactive_interfaces_index, p[0]);
}
// init server socket on specified sock_filename
-static int vhost_user_init_server_sock(const char * sock_filename, int *sockfd)
+static int
+vhost_user_init_server_sock (const char *sock_filename, int *sockfd)
{
- int rv = 0, len;
- struct sockaddr_un un;
+ int rv = 0;
+ struct sockaddr_un un = { };
int fd;
/* create listening socket */
- fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ fd = socket (AF_UNIX, SOCK_STREAM, 0);
- if (fd < 0) {
- return VNET_API_ERROR_SYSCALL_ERROR_1;
- }
+ if (fd < 0)
+ {
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
+ }
un.sun_family = AF_UNIX;
- strcpy((char *) un.sun_path, (char *) sock_filename);
+ strncpy ((char *) un.sun_path, (char *) sock_filename,
+ sizeof (un.sun_path) - 1);
/* remove if exists */
- unlink( (char *) sock_filename);
-
- len = strlen((char *) un.sun_path) + strlen((char *) sock_filename);
+ unlink ((char *) sock_filename);
- if (bind(fd, (struct sockaddr *) &un, len) == -1) {
- rv = VNET_API_ERROR_SYSCALL_ERROR_2;
- goto error;
- }
+ if (bind (fd, (struct sockaddr *) &un, sizeof (un)) == -1)
+ {
+ rv = VNET_API_ERROR_SYSCALL_ERROR_2;
+ goto error;
+ }
- if (listen(fd, 1) == -1) {
- rv = VNET_API_ERROR_SYSCALL_ERROR_3;
- goto error;
- }
+ if (listen (fd, 1) == -1)
+ {
+ rv = VNET_API_ERROR_SYSCALL_ERROR_3;
+ goto error;
+ }
- unix_file_t template = {0};
+ unix_file_t template = { 0 };
template.read_function = vhost_user_socksvr_accept_ready;
template.file_descriptor = fd;
unix_file_add (&unix_main, &template);
return rv;
error:
- close(fd);
+ close (fd);
return rv;
}
// get new vhost_user_intf_t from inactive interfaces or create new one
-static vhost_user_intf_t *vhost_user_vui_new()
+static vhost_user_intf_t *
+vhost_user_vui_new ()
{
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui = NULL;
- int inactive_cnt = vec_len(vum->vhost_user_inactive_interfaces_index);
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui = NULL;
+ int inactive_cnt = vec_len (vum->vhost_user_inactive_interfaces_index);
// if there are any inactive ifaces
- if (inactive_cnt > 0) {
- // take last
- u32 vui_idx = vum->vhost_user_inactive_interfaces_index[inactive_cnt - 1];
- if (vec_len(vum->vhost_user_interfaces) > vui_idx) {
- vui = vec_elt_at_index (vum->vhost_user_interfaces, vui_idx);
- DBG_SOCK("reusing inactive vhost-user interface index %d", vui_idx);
+ if (inactive_cnt > 0)
+ {
+ // take last
+ u32 vui_idx =
+ vum->vhost_user_inactive_interfaces_index[inactive_cnt - 1];
+ if (vec_len (vum->vhost_user_interfaces) > vui_idx)
+ {
+ vui = vec_elt_at_index (vum->vhost_user_interfaces, vui_idx);
+ DBG_SOCK ("reusing inactive vhost-user interface index %d",
+ vui_idx);
+ }
+ // "remove" from inactive list
+ _vec_len (vum->vhost_user_inactive_interfaces_index) -= 1;
}
- // "remove" from inactive list
- _vec_len(vum->vhost_user_inactive_interfaces_index) -= 1;
- }
// vui was not retrieved from inactive ifaces - create new
if (!vui)
}
// create ethernet interface for vhost user intf
-static void vhost_user_create_ethernet(vnet_main_t * vnm, vlib_main_t * vm,
- vhost_user_intf_t *vui)
+static void
+vhost_user_create_ethernet (vnet_main_t * vnm, vlib_main_t * vm,
+ vhost_user_intf_t * vui, u8 * hwaddress)
{
- vhost_user_main_t * vum = &vhost_user_main;
+ vhost_user_main_t *vum = &vhost_user_main;
u8 hwaddr[6];
- clib_error_t * error;
+ clib_error_t *error;
/* create hw and sw interface */
- {
- f64 now = vlib_time_now(vm);
- u32 rnd;
- rnd = (u32) (now * 1e6);
- rnd = random_u32 (&rnd);
-
- memcpy (hwaddr+2, &rnd, sizeof(rnd));
- hwaddr[0] = 2;
- hwaddr[1] = 0xfe;
- }
+ if (hwaddress)
+ {
+ clib_memcpy (hwaddr, hwaddress, 6);
+ }
+ else
+ {
+ f64 now = vlib_time_now (vm);
+ u32 rnd;
+ rnd = (u32) (now * 1e6);
+ rnd = random_u32 (&rnd);
+
+ clib_memcpy (hwaddr + 2, &rnd, sizeof (rnd));
+ hwaddr[0] = 2;
+ hwaddr[1] = 0xfe;
+ }
error = ethernet_register_interface
(vnm,
vhost_user_dev_class.index,
- vui - vum->vhost_user_interfaces /* device instance */,
- hwaddr /* ethernet address */,
- &vui->hw_if_index,
- 0 /* flag change */);
+ vui - vum->vhost_user_interfaces /* device instance */ ,
+ hwaddr /* ethernet address */ ,
+ &vui->hw_if_index, 0 /* flag change */ );
if (error)
clib_error_report (error);
}
// initialize vui with specified attributes
-static void vhost_user_vui_init(vnet_main_t * vnm,
- vhost_user_intf_t *vui, int sockfd,
- const char * sock_filename,
- u8 is_server, u64 feature_mask,
- u32 * sw_if_index)
+static void
+vhost_user_vui_init (vnet_main_t * vnm,
+ vhost_user_intf_t * vui, int sockfd,
+ const char *sock_filename,
+ u8 is_server, u64 feature_mask, u32 * sw_if_index)
{
- vnet_sw_interface_t * sw;
+ vnet_sw_interface_t *sw;
sw = vnet_get_hw_sw_interface (vnm, vui->hw_if_index);
- vlib_thread_main_t * tm = vlib_get_thread_main();
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+ int q;
vui->unix_fd = sockfd;
vui->sw_if_index = sw->sw_if_index;
vui->num_vrings = 2;
vui->sock_is_server = is_server;
- strncpy(vui->sock_filename, sock_filename, ARRAY_LEN(vui->sock_filename)-1);
+ strncpy (vui->sock_filename, sock_filename,
+ ARRAY_LEN (vui->sock_filename) - 1);
vui->sock_errno = 0;
vui->is_up = 0;
vui->feature_mask = feature_mask;
vui->active = 1;
vui->unix_file_index = ~0;
+ vui->log_base_addr = 0;
- vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
+ for (q = 0; q < 2; q++)
+ {
+ vui->vrings[q].enabled = 0;
+ }
+
+ vnet_hw_interface_set_flags (vnm, vui->hw_if_index, 0);
if (sw_if_index)
- *sw_if_index = vui->sw_if_index;
+ *sw_if_index = vui->sw_if_index;
if (tm->n_vlib_mains > 1)
- {
- vui->lockp = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
- CLIB_CACHE_LINE_BYTES);
- memset ((void *) vui->lockp, 0, CLIB_CACHE_LINE_BYTES);
- }
+ {
+ vui->lockp = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
+ CLIB_CACHE_LINE_BYTES);
+ memset ((void *) vui->lockp, 0, CLIB_CACHE_LINE_BYTES);
+ }
}
// register vui and start polling on it
-static void vhost_user_vui_register(vlib_main_t * vm, vhost_user_intf_t *vui)
+static void
+vhost_user_vui_register (vlib_main_t * vm, vhost_user_intf_t * vui)
{
- vhost_user_main_t * vum = &vhost_user_main;
- dpdk_main_t * dm = &dpdk_main;
+ vhost_user_main_t *vum = &vhost_user_main;
+#if DPDK > 0
+ dpdk_main_t *dm = &dpdk_main;
int cpu_index;
- vlib_thread_main_t * tm = vlib_get_thread_main();
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+#endif
hash_set (vum->vhost_user_interface_index_by_listener_fd, vui->unix_fd,
- vui - vum->vhost_user_interfaces);
+ vui - vum->vhost_user_interfaces);
hash_set (vum->vhost_user_interface_index_by_sw_if_index, vui->sw_if_index,
- vui - vum->vhost_user_interfaces);
+ vui - vum->vhost_user_interfaces);
/* start polling */
+#if DPDK > 0
cpu_index = dm->input_cpu_first_index +
- (vui - vum->vhost_user_interfaces) % dm->input_cpu_count;
+ (vui - vum->vhost_user_interfaces) % dm->input_cpu_count;
if (tm->n_vlib_mains == 1)
+#endif
vlib_node_set_state (vm, vhost_user_input_node.index,
- VLIB_NODE_STATE_POLLING);
- else if (!dm->have_io_threads)
+ VLIB_NODE_STATE_POLLING);
+#if DPDK > 0
+ else
vlib_node_set_state (vlib_mains[cpu_index], vhost_user_input_node.index,
- VLIB_NODE_STATE_POLLING);
+ VLIB_NODE_STATE_POLLING);
+#endif
/* tell process to start polling for sockets */
- vlib_process_signal_event(vm, vhost_user_process_node.index, 0, 0);
+ vlib_process_signal_event (vm, vhost_user_process_node.index, 0, 0);
}
-int vhost_user_create_if(vnet_main_t * vnm, vlib_main_t * vm,
- const char * sock_filename,
- u8 is_server,
- u32 * sw_if_index,
- u64 feature_mask,
- u8 renumber, u32 custom_dev_instance)
+int
+vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
+ const char *sock_filename,
+ u8 is_server,
+ u32 * sw_if_index,
+ u64 feature_mask,
+ u8 renumber, u32 custom_dev_instance, u8 * hwaddr)
{
- vhost_user_intf_t * vui = NULL;
- dpdk_main_t * dm = &dpdk_main;
- vlib_thread_main_t * tm = vlib_get_thread_main();
+ vhost_user_intf_t *vui = NULL;
u32 sw_if_idx = ~0;
int sockfd = -1;
int rv = 0;
- if (tm->n_vlib_mains > 1 && dm->have_io_threads)
+ if (is_server)
{
- clib_warning("vhost-user interfaces are not supported with multiple io threads");
- return -1;
+ if ((rv = vhost_user_init_server_sock (sock_filename, &sockfd)) != 0)
+ {
+ return rv;
+ }
}
- if (is_server) {
- if ((rv = vhost_user_init_server_sock (sock_filename, &sockfd)) != 0) {
- return rv;
- }
- }
-
vui = vhost_user_vui_new ();
- ASSERT(vui != NULL);
+ ASSERT (vui != NULL);
- vhost_user_create_ethernet (vnm, vm, vui);
+ vhost_user_create_ethernet (vnm, vm, vui, hwaddr);
vhost_user_vui_init (vnm, vui, sockfd, sock_filename, is_server,
- feature_mask, &sw_if_idx);
+ feature_mask, &sw_if_idx);
- if (renumber) {
- vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
- }
+ if (renumber)
+ {
+ vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
+ }
vhost_user_vui_register (vm, vui);
if (sw_if_index)
- *sw_if_index = sw_if_idx;
+ *sw_if_index = sw_if_idx;
return rv;
}
-int vhost_user_modify_if(vnet_main_t * vnm, vlib_main_t * vm,
- const char * sock_filename,
- u8 is_server,
- u32 sw_if_index,
- u64 feature_mask,
- u8 renumber, u32 custom_dev_instance)
+int
+vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
+ const char *sock_filename,
+ u8 is_server,
+ u32 sw_if_index,
+ u64 feature_mask, u8 renumber, u32 custom_dev_instance)
{
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui = NULL;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui = NULL;
u32 sw_if_idx = ~0;
int sockfd = -1;
int rv = 0;
uword *p = NULL;
- p = hash_get (vum->vhost_user_interface_index_by_sw_if_index,
- sw_if_index);
- if (p == 0) {
- return VNET_API_ERROR_INVALID_SW_IF_INDEX;
- } else {
- vui = vec_elt_at_index (vum->vhost_user_interfaces, p[0]);
- }
+ p = hash_get (vum->vhost_user_interface_index_by_sw_if_index, sw_if_index);
+ if (p == 0)
+ {
+ return VNET_API_ERROR_INVALID_SW_IF_INDEX;
+ }
+ else
+ {
+ vui = vec_elt_at_index (vum->vhost_user_interfaces, p[0]);
+ }
// interface is inactive
vui->active = 0;
// disconnect interface sockets
- vhost_user_if_disconnect(vui);
+ vhost_user_if_disconnect (vui);
- if (is_server) {
- if ((rv = vhost_user_init_server_sock (sock_filename, &sockfd)) != 0) {
- return rv;
- }
- }
+ if (is_server)
+ {
+ if ((rv = vhost_user_init_server_sock (sock_filename, &sockfd)) != 0)
+ {
+ return rv;
+ }
+ }
vhost_user_vui_init (vnm, vui, sockfd, sock_filename, is_server,
- feature_mask, &sw_if_idx);
+ feature_mask, &sw_if_idx);
- if (renumber) {
- vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
- }
+ if (renumber)
+ {
+ vnet_interface_name_renumber (sw_if_idx, custom_dev_instance);
+ }
vhost_user_vui_register (vm, vui);
clib_error_t *
vhost_user_connect_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- unformat_input_t _line_input, * line_input = &_line_input;
- u8 * sock_filename = NULL;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u8 *sock_filename = NULL;
u32 sw_if_index;
u8 is_server = 0;
- u64 feature_mask = (u64)~0;
+ u64 feature_mask = (u64) ~ 0;
u8 renumber = 0;
u32 custom_dev_instance = ~0;
+ u8 hwaddr[6];
+ u8 *hw = NULL;
/* Get a line of input. */
- if (! unformat_user (input, unformat_line_input, line_input))
+ if (!unformat_user (input, unformat_line_input, line_input))
return 0;
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) {
- if (unformat (line_input, "socket %s", &sock_filename))
- ;
- else if (unformat (line_input, "server"))
- is_server = 1;
- else if (unformat (line_input, "feature-mask 0x%llx", &feature_mask))
- ;
- else if (unformat (line_input, "renumber %d", &custom_dev_instance)) {
- renumber = 1;
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "socket %s", &sock_filename))
+ ;
+ else if (unformat (line_input, "server"))
+ is_server = 1;
+ else if (unformat (line_input, "feature-mask 0x%llx", &feature_mask))
+ ;
+ else
+ if (unformat
+ (line_input, "hwaddr %U", unformat_ethernet_address, hwaddr))
+ hw = hwaddr;
+ else if (unformat (line_input, "renumber %d", &custom_dev_instance))
+ {
+ renumber = 1;
+ }
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
}
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
unformat_free (line_input);
- vnet_main_t *vnm = vnet_get_main();
+ vnet_main_t *vnm = vnet_get_main ();
- vhost_user_create_if(vnm, vm, (char *)sock_filename,
- is_server, &sw_if_index, feature_mask,
- renumber, custom_dev_instance);
-
- vec_free(sock_filename);
+ int rv;
+ if ((rv = vhost_user_create_if (vnm, vm, (char *) sock_filename,
+ is_server, &sw_if_index, feature_mask,
+ renumber, custom_dev_instance, hw)))
+ {
+ vec_free (sock_filename);
+ return clib_error_return (0, "vhost_user_create_if returned %d", rv);
+ }
+ vec_free (sock_filename);
+ vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnet_get_main (),
+ sw_if_index);
return 0;
}
clib_error_t *
vhost_user_delete_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- unformat_input_t _line_input, * line_input = &_line_input;
+ unformat_input_t _line_input, *line_input = &_line_input;
u32 sw_if_index = ~0;
/* Get a line of input. */
- if (! unformat_user (input, unformat_line_input, line_input))
+ if (!unformat_user (input, unformat_line_input, line_input))
return 0;
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) {
- if (unformat (line_input, "sw_if_index %d", &sw_if_index))
- ;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "sw_if_index %d", &sw_if_index))
+ ;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
unformat_free (line_input);
- vnet_main_t *vnm = vnet_get_main();
+ vnet_main_t *vnm = vnet_get_main ();
- vhost_user_delete_if(vnm, vm, sw_if_index);
+ vhost_user_delete_if (vnm, vm, sw_if_index);
return 0;
}
-int vhost_user_dump_ifs(vnet_main_t * vnm, vlib_main_t * vm, vhost_user_intf_details_t **out_vuids)
+int
+vhost_user_dump_ifs (vnet_main_t * vnm, vlib_main_t * vm,
+ vhost_user_intf_details_t ** out_vuids)
{
int rv = 0;
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
- vhost_user_intf_details_t * r_vuids = NULL;
- vhost_user_intf_details_t * vuid = NULL;
- u32 * hw_if_indices = 0;
- vnet_hw_interface_t * hi;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
+ vhost_user_intf_details_t *r_vuids = NULL;
+ vhost_user_intf_details_t *vuid = NULL;
+ u32 *hw_if_indices = 0;
+ vnet_hw_interface_t *hi;
u8 *s = NULL;
int i;
if (!out_vuids)
- return -1;
+ return -1;
- vec_foreach (vui, vum->vhost_user_interfaces) {
+ vec_foreach (vui, vum->vhost_user_interfaces)
+ {
if (vui->active)
- vec_add1(hw_if_indices, vui->hw_if_index);
+ vec_add1 (hw_if_indices, vui->hw_if_index);
}
- for (i = 0; i < vec_len (hw_if_indices); i++) {
- hi = vnet_get_hw_interface (vnm, hw_if_indices[i]);
- vui = vec_elt_at_index (vum->vhost_user_interfaces, hi->dev_instance);
-
- vec_add2(r_vuids, vuid, 1);
- vuid->sw_if_index = vui->sw_if_index;
- vuid->virtio_net_hdr_sz = vui->virtio_net_hdr_sz;
- vuid->features = vui->features;
- vuid->is_server = vui->sock_is_server;
- vuid->num_regions = vui->nregions;
- vuid->sock_errno = vui->sock_errno;
- strncpy((char *)vuid->sock_filename, (char *)vui->sock_filename,
- ARRAY_LEN(vuid->sock_filename)-1);
-
- s = format (s, "%v%c", hi->name, 0);
-
- strncpy((char *)vuid->if_name, (char *)s,
- ARRAY_LEN(vuid->if_name)-1);
- _vec_len(s) = 0;
- }
+ for (i = 0; i < vec_len (hw_if_indices); i++)
+ {
+ hi = vnet_get_hw_interface (vnm, hw_if_indices[i]);
+ vui = vec_elt_at_index (vum->vhost_user_interfaces, hi->dev_instance);
+
+ vec_add2 (r_vuids, vuid, 1);
+ vuid->sw_if_index = vui->sw_if_index;
+ vuid->virtio_net_hdr_sz = vui->virtio_net_hdr_sz;
+ vuid->features = vui->features;
+ vuid->is_server = vui->sock_is_server;
+ vuid->num_regions = vui->nregions;
+ vuid->sock_errno = vui->sock_errno;
+ strncpy ((char *) vuid->sock_filename, (char *) vui->sock_filename,
+ ARRAY_LEN (vuid->sock_filename) - 1);
+
+ s = format (s, "%v%c", hi->name, 0);
+
+ strncpy ((char *) vuid->if_name, (char *) s,
+ ARRAY_LEN (vuid->if_name) - 1);
+ _vec_len (s) = 0;
+ }
vec_free (s);
vec_free (hw_if_indices);
clib_error_t *
show_vhost_user_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
- clib_error_t * error = 0;
- vnet_main_t * vnm = vnet_get_main();
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
- u32 hw_if_index, * hw_if_indices = 0;
- vnet_hw_interface_t * hi;
+ clib_error_t *error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
+ u32 hw_if_index, *hw_if_indices = 0;
+ vnet_hw_interface_t *hi;
int i, j, q;
int show_descr = 0;
- struct feat_struct { u8 bit; char *str;};
+ struct feat_struct
+ {
+ u8 bit;
+ char *str;
+ };
struct feat_struct *feat_entry;
static struct feat_struct feat_array[] = {
#define _(s,b) { .str = #s, .bit = b, },
- foreach_virtio_net_feature
+ foreach_virtio_net_feature
#undef _
- { .str = NULL }
+ {.str = NULL}
};
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
- if (unformat (input, "%U", unformat_vnet_hw_interface, vnm, &hw_if_index)) {
- vec_add1 (hw_if_indices, hw_if_index);
- vlib_cli_output(vm, "add %d", hw_if_index);
- }
- else if (unformat (input, "descriptors") || unformat (input, "desc") )
- show_descr = 1;
- else {
- error = clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- goto done;
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat
+ (input, "%U", unformat_vnet_hw_interface, vnm, &hw_if_index))
+ {
+ vec_add1 (hw_if_indices, hw_if_index);
+ vlib_cli_output (vm, "add %d", hw_if_index);
+ }
+ else if (unformat (input, "descriptors") || unformat (input, "desc"))
+ show_descr = 1;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
}
- }
- if (vec_len (hw_if_indices) == 0) {
- vec_foreach (vui, vum->vhost_user_interfaces) {
- if (vui->active)
- vec_add1(hw_if_indices, vui->hw_if_index);
+ if (vec_len (hw_if_indices) == 0)
+ {
+ vec_foreach (vui, vum->vhost_user_interfaces)
+ {
+ if (vui->active)
+ vec_add1 (hw_if_indices, vui->hw_if_index);
+ }
}
- }
vlib_cli_output (vm, "Virtio vhost-user interfaces");
vlib_cli_output (vm, "Global:\n coalesce frames %d time %e\n\n",
- vum->coalesce_frames, vum->coalesce_time);
-
- for (i = 0; i < vec_len (hw_if_indices); i++) {
- hi = vnet_get_hw_interface (vnm, hw_if_indices[i]);
- vui = vec_elt_at_index (vum->vhost_user_interfaces, hi->dev_instance);
- vlib_cli_output (vm, "Interface: %s (ifindex %d)",
- hi->name, hw_if_indices[i]);
-
- vlib_cli_output (vm, "virtio_net_hdr_sz %d\n features (0x%llx): \n",
- vui->virtio_net_hdr_sz, vui->features);
-
- feat_entry = (struct feat_struct *) &feat_array;
- while(feat_entry->str) {
- if (vui->features & (1 << feat_entry->bit))
- vlib_cli_output (vm, " %s (%d)", feat_entry->str, feat_entry->bit);
- feat_entry++;
- }
-
- vlib_cli_output (vm, "\n");
-
-
- vlib_cli_output (vm, " socket filename %s type %s errno \"%s\"\n\n",
- vui->sock_filename, vui->sock_is_server ? "server" : "client",
- strerror(vui->sock_errno));
-
- vlib_cli_output (vm, " Memory regions (total %d)\n", vui->nregions);
+ vum->coalesce_frames, vum->coalesce_time);
- if (vui->nregions){
- vlib_cli_output(vm, " region fd guest_phys_addr memory_size userspace_addr mmap_offset mmap_addr\n");
- vlib_cli_output(vm, " ====== ===== ================== ================== ================== ================== ==================\n");
- }
- for (j = 0; j < vui->nregions; j++) {
- vlib_cli_output(vm, " %d %-5d 0x%016lx 0x%016lx 0x%016lx 0x%016lx 0x%016lx\n", j,
- vui->region_mmap_fd[j],
- vui->regions[j].guest_phys_addr,
- vui->regions[j].memory_size,
- vui->regions[j].userspace_addr,
- vui->regions[j].mmap_offset,
- (u64) vui->region_mmap_addr[j]);
- }
- for (q = 0; q < vui->num_vrings; q++) {
- vlib_cli_output(vm, "\n Virtqueue %d\n", q);
-
- vlib_cli_output(vm, " qsz %d last_avail_idx %d last_used_idx %d\n",
- vui->vrings[q].qsz,
- vui->vrings[q].last_avail_idx,
- vui->vrings[q].last_used_idx);
-
- if (vui->vrings[q].avail && vui->vrings[q].used)
- vlib_cli_output(vm, " avail.flags %x avail.idx %d used.flags %x used.idx %d\n",
- vui->vrings[q].avail->flags,
- vui->vrings[q].avail->idx,
- vui->vrings[q].used->flags,
- vui->vrings[q].used->idx);
-
- vlib_cli_output(vm, " kickfd %d callfd %d errfd %d\n",
- vui->vrings[q].kickfd,
- vui->vrings[q].callfd,
- vui->vrings[q].errfd);
-
- if (show_descr) {
- vlib_cli_output(vm, "\n descriptor table:\n");
- vlib_cli_output(vm, " id addr len flags next user_addr\n");
- vlib_cli_output(vm, " ===== ================== ===== ====== ===== ==================\n");
- for(j = 0; j < vui->vrings[q].qsz; j++) {
- vlib_cli_output(vm, " %-5d 0x%016lx %-5d 0x%04x %-5d 0x%016lx\n",
- j,
- vui->vrings[q].desc[j].addr,
- vui->vrings[q].desc[j].len,
- vui->vrings[q].desc[j].flags,
- vui->vrings[q].desc[j].next,
- (u64) map_guest_mem(vui, vui->vrings[q].desc[j].addr));}
- }
+ for (i = 0; i < vec_len (hw_if_indices); i++)
+ {
+ hi = vnet_get_hw_interface (vnm, hw_if_indices[i]);
+ vui = vec_elt_at_index (vum->vhost_user_interfaces, hi->dev_instance);
+ vlib_cli_output (vm, "Interface: %s (ifindex %d)",
+ hi->name, hw_if_indices[i]);
+
+ vlib_cli_output (vm, "virtio_net_hdr_sz %d\n features (0x%llx): \n",
+ vui->virtio_net_hdr_sz, vui->features);
+
+ feat_entry = (struct feat_struct *) &feat_array;
+ while (feat_entry->str)
+ {
+ if (vui->features & (1 << feat_entry->bit))
+ vlib_cli_output (vm, " %s (%d)", feat_entry->str,
+ feat_entry->bit);
+ feat_entry++;
+ }
+
+ vlib_cli_output (vm, "\n");
+
+
+ vlib_cli_output (vm, " socket filename %s type %s errno \"%s\"\n\n",
+ vui->sock_filename,
+ vui->sock_is_server ? "server" : "client",
+ strerror (vui->sock_errno));
+
+ vlib_cli_output (vm, " Memory regions (total %d)\n", vui->nregions);
+
+ if (vui->nregions)
+ {
+ vlib_cli_output (vm,
+ " region fd guest_phys_addr memory_size userspace_addr mmap_offset mmap_addr\n");
+ vlib_cli_output (vm,
+ " ====== ===== ================== ================== ================== ================== ==================\n");
+ }
+ for (j = 0; j < vui->nregions; j++)
+ {
+ vlib_cli_output (vm,
+ " %d %-5d 0x%016lx 0x%016lx 0x%016lx 0x%016lx 0x%016lx\n",
+ j, vui->region_mmap_fd[j],
+ vui->regions[j].guest_phys_addr,
+ vui->regions[j].memory_size,
+ vui->regions[j].userspace_addr,
+ vui->regions[j].mmap_offset,
+ pointer_to_uword (vui->region_mmap_addr[j]));
+ }
+ for (q = 0; q < vui->num_vrings; q++)
+ {
+ vlib_cli_output (vm, "\n Virtqueue %d\n", q);
+
+ vlib_cli_output (vm,
+ " qsz %d last_avail_idx %d last_used_idx %d\n",
+ vui->vrings[q].qsz, vui->vrings[q].last_avail_idx,
+ vui->vrings[q].last_used_idx);
+
+ if (vui->vrings[q].avail && vui->vrings[q].used)
+ vlib_cli_output (vm,
+ " avail.flags %x avail.idx %d used.flags %x used.idx %d\n",
+ vui->vrings[q].avail->flags,
+ vui->vrings[q].avail->idx,
+ vui->vrings[q].used->flags,
+ vui->vrings[q].used->idx);
+
+ vlib_cli_output (vm, " kickfd %d callfd %d errfd %d\n",
+ vui->vrings[q].kickfd,
+ vui->vrings[q].callfd, vui->vrings[q].errfd);
+
+ if (show_descr)
+ {
+ vlib_cli_output (vm, "\n descriptor table:\n");
+ vlib_cli_output (vm,
+ " id addr len flags next user_addr\n");
+ vlib_cli_output (vm,
+ " ===== ================== ===== ====== ===== ==================\n");
+ for (j = 0; j < vui->vrings[q].qsz; j++)
+ {
+ vlib_cli_output (vm,
+ " %-5d 0x%016lx %-5d 0x%04x %-5d 0x%016lx\n",
+ j, vui->vrings[q].desc[j].addr,
+ vui->vrings[q].desc[j].len,
+ vui->vrings[q].desc[j].flags,
+ vui->vrings[q].desc[j].next,
+ pointer_to_uword (map_guest_mem
+ (vui,
+ vui->vrings[q].desc[j].
+ addr)));
+ }
+ }
+ }
+ vlib_cli_output (vm, "\n");
}
- vlib_cli_output (vm, "\n");
- }
done:
vec_free (hw_if_indices);
return error;
}
+/*
+ * CLI functions
+ */
+
+#if DPDK == 0
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vhost_user_connect_command, static) = {
+ .path = "create vhost-user",
+ .short_help = "create vhost-user socket <socket-filename> [server] [feature-mask <hex>] [renumber <dev_instance>]",
+ .function = vhost_user_connect_command_fn,
+};
+
+VLIB_CLI_COMMAND (vhost_user_delete_command, static) = {
+ .path = "delete vhost-user",
+ .short_help = "delete vhost-user sw_if_index <nn>",
+ .function = vhost_user_delete_command_fn,
+};
+
+VLIB_CLI_COMMAND (show_vhost_user_command, static) = {
+ .path = "show vhost-user",
+ .short_help = "show vhost-user interface",
+ .function = show_vhost_user_command_fn,
+};
+/* *INDENT-ON* */
+#endif
+
static clib_error_t *
vhost_user_config (vlib_main_t * vm, unformat_input_t * input)
{
- vhost_user_main_t * vum = &vhost_user_main;
+ vhost_user_main_t *vum = &vhost_user_main;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "coalesce-frames %d", &vum->coalesce_frames))
- ;
+ ;
else if (unformat (input, "coalesce-time %f", &vum->coalesce_time))
- ;
+ ;
else if (unformat (input, "dont-dump-memory"))
- vum->dont_dump_vhost_user_memory = 1;
+ vum->dont_dump_vhost_user_memory = 1;
else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
}
return 0;
void
vhost_user_unmap_all (void)
{
- vhost_user_main_t * vum = &vhost_user_main;
- vhost_user_intf_t * vui;
+ vhost_user_main_t *vum = &vhost_user_main;
+ vhost_user_intf_t *vui;
if (vum->dont_dump_vhost_user_memory)
{
vec_foreach (vui, vum->vhost_user_interfaces)
- {
- unmap_all_mem_regions(vui);
- }
+ {
+ unmap_all_mem_regions (vui);
+ }
}
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff